BACKGROUND OF THE INVENTION
[0001] The present invention relates to a spun yarn take-up apparatus configured to take
up yarns spun out from a spinning apparatus.
[0002] Patent Literature 1 (Japanese Unexamined Patent Publication No.
54-88315) recites an apparatus configured to take up yarns spun out from a spinning apparatus.
This apparatus includes a supplying roller and a drawing roller provided below the
spinning apparatus and a winding unit (spindle) provided below these rollers. The
yarns spun out from the spinning apparatus are drawn between the supplying roller
and the drawing roller and each of the yarns is wound by a winding unit.
DE 101 17 087 A1 is related to the preamble of claim 1.
[0003] At the time of yarn threading, after the yarns spun out from the spinning apparatus
are wound onto the supplying roller and the drawing roller provided at a first processing
area, the yarns are moved to a second processing area below and are wound onto the
winding unit provided in the second processing area. To be more specific, to begin
with, an operator places the yarns wound onto the drawing roller onto a guide roller
which is movable between the first processing area and the second processing area,
while retaining the yarns by using a suction gun. Thereafter, the operator moves the
guide roller from the first processing area to the second processing area. After moving
the guide roller to the second processing area, the operator operates a catching nozzle
in the second processing area to catch the yarns wound onto the guide roller, and
winds the yarns onto the winding unit.
SUMMARY OF THE INVENTION
[0004] In a typical spun yarn take-up apparatus, the distance between a spinning apparatus
and winding equipment therebelow is considerably long (e.g., 3 to 6 meters). On this
account, in the apparatus recited in Patent Literature 1, the bending angle of the
yarn path bended to form a V-shape and having the guide roller as an apex is significantly
small when the yarns are moved toward the winding unit below by the guide roller.
For this reason, in the vicinity of the guide roller, a yarn part on the upstream
of the guide roller and a yarn part on the downstream of the guide roller are close
to each other.
[0005] According to Patent Literature 1, the operator catches the yarns by sucking, by using
the catching nozzle, the yarn part on the upstream of the guide roller. In so doing,
if the yarn part on the upstream of the guide roller and the yarn part on the downstream
of the guide roller are close to each other, the yarn part on the downstream may be
erroneously sucked together with the yarn part on the upstream, with the result that
handover of the yarns to the catching nozzle may be failed.
[0006] In this regard, if the guide roller is considerably upsized, the distance between
the yarn part on the upstream and the yarn part on the downstream is long, and hence
the handover of the yarns is possible in the vicinity of the guide roller. However,
when the guide roller is large, the entire apparatus for taking the yarns down is
large, too. Furthermore, when the guide roller is a free rotary roller not having
a driving power source, the contact resistance between the yarns and the roller is
high when the roller is large, with the result that the success rate of the handover
of the yarns is low due to yarn breakage.
[0007] In addition to the above, when yarns are placed on a single guide roller and the
yarns are taken down, a position where the yarns are handed in a space to which the
yarns are taken down is limited to the yarn part on the upstream of the guide roller.
The design freedom of a tool for receiving the yarns is decreased, and the success
rate of the handover of the yarns may be lowered.
[0008] An object of the present invention is to improve the success rate of handover of
yarns which are taken down by a yarn take-down device.
[0009] According to the first aspect of the invention, a spun yarn take-up apparatus taking
up yarns spun out from a spinning apparatus provided in a first yarn processing space
includes:
a take-up unit provided in a second yarn processing space below the first yarn processing
space and configured to take up the yarns spun out from the spinning apparatus; a
first yarn sucking unit provided in the first yarn processing space and configured
to suck and retain the yarns spun out from the spinning apparatus; and a yarn take-down
device configured to take the yarns retained by the first yarn sucking unit down from
the first yarn processing space to the second yarn processing space, the yarn take-down
device including yarn threading portions which are provided at intervals in a direction
intersecting with an up-down direction, each of the yarns being threaded onto the
yarn threading portions in order.
[0010] In the present invention, in the first yarn processing space, the yarns from the
spinning apparatus are sucked by the first yarn sucking unit, and the sucked yarns
are threaded onto the yarn threading portions of the yarn take-down device. Then the
yarn take-down device moves down toward the yarn holding unit in the second yarn processing
space. At this stage, each yarn forms a yarn path which extends from the first yarn
processing space to the first yarn sucking unit in the first yarn processing space
via the yarn take-down device in the second yarn processing space.
[0011] In the present invention, the yarn take-down device includes yarn threading portions
which are provided at intervals in a direction intersecting with the up-down direction.
As the yarn is threaded onto the yarn threading portions, the yarn part on the upstream
of the yarn take-down device is distanced from the yarn part on the downstream of
the yarn take-down device. This prevents a yarn from being erroneously captured at
two parts, with the result that the success rate of the handover of the yarn is improved.
Furthermore, because each yarn is threaded onto the plural yarn threading portions,
each yarn is captured at various positions. The design freedom of a tool for receiving
the yarns used in the handover of the yarns is improved, and the success rate of the
handover of the yarns is not deteriorated.
[0012] According to the second aspect of the invention, the spun yarn take-up apparatus
of the first aspect is arranged such that the distance between two yarn threading
portions which are outermost ones in the intersecting direction among the yarn threading
portions is 30mm or longer. According to the third aspect of the invention, the spun
yarn take-up apparatus of the second aspect is arranged such that the distance between
two yarn threading portions which are outermost ones in the intersecting direction
among the yarn threading portions is 120mm or longer.
[0013] The distance between the outermost ones of the yarn threading portions is 30mm or
longer, and more preferably 120mm or longer. With this, the distance between the two
yarns parts threaded onto the outermost yarn threading portions is long. This certainly
prevents a single yarn from being erroneously captured at two parts. Furthermore,
the yarn is easily captured between the two yarn threading portions.
[0014] According to the fourth aspect of the invention, the spun yarn take-up apparatus
of any one of the first to third aspects is arranged such that, the yarn take-down
device takes the yarns down to a position which is in the second yarn processing space
and is deviated from a yarn path when the yarns are taken up by the take-up unit.
[0015] In the present invention, the yarn take-down device takes the yarns down to the position
which is in the second yarn processing space and is deviated from the yarn path when
the yarns are taken up by the take-up unit (i.e., the yarn path in yarn production)
. On this account, when the yarn take-down device is returned to the first yarn processing
space after the handover of the yarns in the second yarn processing space, the yarn
take-down device does not interfere with the yarns threaded onto the take-up unit.
[0016] According to the fifth aspect of the invention, the spun yarn take-up apparatus of
the fourth aspect further includes a yarn convergence guide which is provided in the
first yarn processing space and is configured to converge the yarns taken down by
the yarn take-down device.
[0017] As the yarns sucked by the first yarn sucking unit are converged by the yarn convergence
guide, the yarns are threaded in a converged manner onto the yarn threading portions
of the yarn take-down device, with the result that yarn threading becomes easy. Furthermore,
the yarns are less likely to be scattered when took down by the yarn take-down device.
[0018] According to the sixth aspect of the invention, the spun yarn take-up apparatus of
the fourth or fifth aspect further includes a yarn holding unit which is provided
in the second yarn processing space and sucks and retains the yarns supplied from
the spinning apparatus, the yarn holding unit being capable of sucking the yarns taken
down to the position deviated from the yarn path by the yarn take-down device.
[0019] The yarn holding unit in the second yarn processing space temporarily retains the
yarns serially spun out from the spinning apparatus, when, for example, a malfunction
occurs in the apparatus. The yarn holding unit is therefore provided in the vicinity
of the yarn path in yarn production. In the meanwhile, in yarn threading onto the
take-up unit, the yarns are taken down by the yarn take-down device to a position
which is deviated from the yarn path in yarn production in the second yarn processing
space.
[0020] In this regard, in the present invention, the yarn holding unit is arranged to be
capable of sucking the yarns taken down to the position deviated from the yarn path.
For this reason, the yarn threading unit receiving the yarns or the operator is not
required to wait in the second yarn processing space in advance, when the yarns Y
are taken down to the second yarn processing space. In other words, the operator working
in the first yarn processing space is allowed to take yarns down at any timing, no
matter whether the yarn threading unit or the operator is on standby in the second
yarn processing space.
[0021] According to the seventh aspect of the invention, the spun yarn take-up apparatus
of the sixth aspect is arranged such that the yarn holding unit includes a cutter
by which the yarns are cut and a second yarn sucking unit configured to suck the yarns
cut by the cutter, the cutter and the second yarn sucking unit being capable of moving
close to and away from the yarns taken down by the yarn take-down device.
[0022] When the yarns are taken down to the second yarn processing space by the yarn take-down
device, the cutter of the yarn holding unit moves toward the yarns and cuts the yarns.
Furthermore, the yarns having been cut by the cutter are sucked by the second yarn
sucking unit which moves together with the cutter. With this, even if the yarns are
taken by the yarn take-down device down to a position deviated from the yarn path
in yarn production, the yarn holding unit is able to suck the yarns.
[0023] According to the eighth aspect of the invention, the spun yarn take-up apparatus
of the sixth aspect further includes a shifting unit configured to move, toward the
yarn holding unit, the yarns taken down by the yarn take-down device.
[0024] When the yarns are taken down to the second yarn processing space by the yarn take-down
device, the shifting unit moves the yarns toward the yarn holding unit. With this,
even if the yarns are taken by the yarn take-down device down to a position deviated
from the yarn path in yarn production, the yarn holding unit is able to suck the yarns.
[0025] According to the ninth aspect of the invention, the spun yarn take-up apparatus
of any one of the sixth to eighth aspects is arranged such that the yarn holding unit
cuts the yarns between the spinning apparatus and the yarn take-down device and receives
the yarns.
[0026] The yarn holding unit cuts the yarn part of each yarn between the spinning apparatus
and the yarn take-down device, i.e., the yarn part on the upstream of the yarn take-down
device. In this regard, in the present invention, the yarn take-down device includes
plural yarn threading portions, and there is a distance in each yarn between the yarn
part on the upstream of the yarn take-down device and the yarn part on the downstream
of the yarn take-down device. On this account, when the yarn part on the upstream
side is cut by the yarn holding unit, the yarn part on the downstream side is less
likely to be cut together with the yarn part on the upstream side.
[0027] According to the tenth aspect of the invention, the spun yarn take-up apparatus of
any one of the sixth to eighth aspects is arranged such that the yarn holding unit
cuts the yarns between neighboring two of the yarn threading portions and receives
the yarns.
[0028] According to this arrangement, because the yarns are cut between two yarn threading
portions, a single yarn is less likely to be cut at two parts. Furthermore, because
vibrations of the yarn is restrained at a part between the two yarn threading portions
on account of the proximity to the yarn threading portions, the success rate of yarn
cutting is high.
[0029] According to the eleventh aspect of the invention, the spun yarn take-up apparatus
of any one of the first to tenth aspects is arranged such that the first yarn sucking
unit is portable.
[0030] In the present invention, the term "portable" indicates that the operator is able
to freely carry the first yarn sucking unit to various workplaces. When the yarns
taken down to the second yarn processing space by the yarn take-down device are handed
for the threading to the take-up unit in the second yarn processing space, the first
yarn sucking unit finishes its role. On this account, after the completion of the
handing of the yarns, the first yarn sucking unit may be moved to a suitable workplace
and used for another operation.
[0031] According to the twentieth aspect of the invention, the spun yarn take-up apparatus
of any one of the first to eleventh aspects further includes a yarn threading unit
which is provided in the second yarn processing space and is configured to cut and
receive the yarns taken down by the yarn take-down device and thread the received
yarns onto the take-up unit.
[0032] In the present invention, the yarns taken down to the second yarn processing space
by the yarn take-down device are handed to the yarn threading unit, and is threaded
onto the take-up unit by the yarn threading unit.
[0033] According to the thirteenth aspect of the invention, the spun yarn take-up apparatus
of the twentieth aspect is arranged such that the yarn threading unit cuts the yarns
between the spinning apparatus and the yarn take-down device and receives the yarns.
[0034] The yarn threading unit cuts the yarn part of each yarn between the spinning apparatus
and the yarn take-down device, i.e., the yarn part on the upstream of the yarn take-down
device. In this regard, in the present invention, the yarn take-down device includes
plural yarn threading portions, and there is a distance in each yarn between the yarn
part on the upstream of the yarn take-down device and the yarn part on the downstream
of the yarn take-down device. On this account, when the yarn part on the upstream
side is cut by the yarn threading unit, the yarn part on the downstream side is less
likely to be cut together with the yarn part on the upstream side.
[0035] According to the fourteenth aspect of the invention, the spun yarn take-up apparatus
of the twentieth aspect is arranged such that the yarn threading unit cuts the yarns
between neighboring two of the yarn threading portions and receives the yarns.
[0036] According to this arrangement, because the yarns are cut between two yarn threading
portions, a single yarn is less likely to be cut at two parts. Furthermore, because
vibrations of the yarn is restrained at a part between the two yarn threading portions
on account of the proximity to the yarn threading portions, the success rate of yarn
cutting is high.
BRIEF DESCRIPTION OF THE DRAWINGS
[0037]
FIG. 1 is a profile of a spun yarn take-up apparatus of an embodiment.
FIG. 2 is a block diagram which schematically shows a control system of the spun yarn
take-up apparatus.
FIG. 3 is a front view of the yarn holding unit shown in FIG. 1.
FIG. 4 shows an upper structure of the spun yarn take-up apparatus including a yarn
take-down device.
FIG. 5 is a perspective view of the yarn take-down device.
FIG. 6 shows the spun yarn take-up apparatus immediately after the start of spinning.
FIG. 7 shows the spun yarn take-up apparatus when the yarns are retained by a sucking
unit.
FIG. 8 shows the spun yarn take-up apparatus when the yarns are threaded to an oil
guide and a yarn regulating guide.
FIG. 9 shows the spun yarn take-up apparatus when the yarns are threaded onto a yarn
convergence guide.
FIG. 10 shows the spun yarn take-up apparatus immediately before taking the yarns
down.
FIG. 11 shows the spun yarn take-up apparatus immediately after moving down the yarn
take-down device.
FIG. 12 shows the spun yarn take-up apparatus when the yarns are handed to a yarn
threading unit.
FIG. 13 shows the spun yarn take-up apparatus when the yarns are threaded by the yarn
threading unit.
FIG. 14 shows the spun yarn take-up apparatus when the yarns are handed to a yarn
holding unit by a yarn shifting member.
FIG. 15 shows the spun yarn take-up apparatus after the handover of the yarns to the
yarn holding unit is completed.
FIG. 16 relates to a modification and shows a spun yarn take-up apparatus when yarns
are handed to a yarn threading unit.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0038] The following will describe an embodiment of the present invention. FIG. 1 is a profile
of a spun yarn take-up apparatus 1 of the present embodiment. FIG. 2 is a block diagram
which schematically shows a control system of the spun yarn take-up apparatus 1. The
spun yarn take-up apparatus 1 takes up synthetic fiber yarns Y spun out from a spinning
apparatus 2 and forms packages P by winding the yarns Y onto bobbins B, respectively.
Though illustration is omitted, plural spun yarn take-up apparatuses 1 are lined up
in the direction orthogonal to the plane of FIG. 1.
[0039] For convenience, the up-down direction in FIG. 1 will be referred to as an up-down
direction of the spun yarn take-up apparatus 1, the direction which is orthogonal
to the plane of FIG. 1 and in which the spun yarn take-up apparatuses 1 are lined
up will be referred to as a left-right direction of the spun yarn take-up apparatus,
and the left-right direction in FIG. 1 will be referred to as a front-back direction
of the spun yarn take-up apparatus 1.
(Outline of Spun Yarn Take-Up Apparatus)
[0040] As shown in FIG. 1, the spun yarn take-up apparatus 1 of the present embodiment includes
members such as a yarn take-down device 4, a yarn holding unit 5, a take-up unit 6,
a winding device 7, and a controller 8. In the present embodiment, the internal space
of the building in which the spinning apparatus 2 and the spun yarn take-up apparatus
1 are provided is partitioned into an upper floor and a lower floor (second floor
and first floor) by a partition wall 9. On the second floor of the building (i.e.,
a first yarn processing space in the present invention), the spinning apparatus 2
and a part (e.g., the yarn take-down device 4) of the spun yarn take-up apparatus
1 are provided. In the meanwhile, on the first floor of the building (i.e., a second
yarn processing space of the present invention), the remaining part (e.g., the yarn
holding unit 5, the take-up unit 6, and the winding device 7) of the spun yarn take-up
apparatus 1 are provided. On the first floor of the building, furthermore, a yarn
threading unit 23 shared between the spun yarn take-up apparatuses 1 is provided to
be movable in the left-right direction (i.e., the direction orthogonal to the plane
of FIG. 1).
<Arrangement on Second Floor of Building>
[0041] To begin with, to the spinning apparatus 2 on the second floor, a spinning pack 10
having a spinneret 10a is attached. As molten polymer which is supplied from a polymer
supplier (not illustrated) formed of a gear pump or the like and is hot is pushed
out from the spinneret 10a, yarns Y are spun out from the spinneret 10a. Immediately
below the spinning apparatus 2, a cooling unit 3 is provided. The yarns Y spun out
from the spinneret 10a are solidified as they are cooled by gas supplied from a duct
12 while passing through a spun yarn tube 11 of the cooling unit 3.
[0042] On the second floor of the building, an oil guide 13 and a yarn regulating guide
14 are provided below the spinning apparatus 2. To the yarns Y spun out from the spinning
apparatus 2, oil is applied at the oil guide 13. The yarn regulating guide 14 below
the oil guide 13 is provided for regulating the yarn path of the yarns Y to which
oil is applied at the oil guide 13.
[0043] On the second floor of the building, the yarn take-down device 4 is further provided.
This yarn take-down device 4 is provided for taking the yarns Y spun out from the
spinning apparatus 2 down to the first floor on which the take-up unit 6 and the winding
device 7 are provided, at the time of preparation operations (e.g., yarn threading)
before the start of the production of packages P. The details of the yarn take-down
device 4 will be given later.
<Arrangement on First Floor of Building>
[0044] On the first floor of the building, members such as the yarn holding unit 5, the
take-up unit 6, and the winding device 7 are provided. Through the partition wall
9 separating the first floor from the second floor of the building, a yarn passing
hole 9a is formed to allow the yarns Y spun out from the spinning apparatus 2 to pass
therethrough. Below the yarn passing hole 9a, a cover 60 is provided to prevent the
occurrence of yarn swing or the like.
[0045] The yarn holding unit 5 is fixedly provided at a position immediately below the yarn
passing hole 9a of the partition wall 9. When a trouble or the like occurs at a device
(e.g., the take-up unit 6 and the winding device 7) on the downstream, this yarn holding
unit 5 cuts the yarns Y spun out from the spinning apparatus 2 and temporarily retains
them until the trouble or the like is resolved. For this purpose, the yarn holding
unit 5 is provided in the vicinity of a yarn path YP in yarn production when the yarns
Y from the spinning apparatus 2 are taken up by the take-up unit 6, and is provided
to overlap with the yarn path YP in the left-right direction.
[0046] FIG. 3 is a front view (left side view in FIG. 1) of the yarn holding unit 5 shown
in FIG. 1. As shown in FIG. 3, the yarn holding unit 5 includes a holder 20, a sucking
pipe 21, and a cutter 22. The sucking pipe 21 is provided in the holder 20. This sucking
pipe 21 is connected with a fluid cylinder 27 (see FIG. 2). The fluid cylinder 27
is driven by pressure fluid supplied from a fluid supplying unit 28. By the fluid
cylinder 27, the sucking pipe 21 is driven to advance and retract in the left-right
direction and move in and out of the holder 20. The cutter 22 is provided at a leading
end portion of the sucking pipe 21.
[0047] The yarn holding unit 5 is driven as follows. To begin with, when the fluid cylinder
27 is driven in a waiting state shown in FIG. 3(a) and the sucking pipe 21 advances
rightward in which direction the yarns Y run as shown in FIG. 3(b), the yarns Y are
serially cut by the cutter 22 at the leading end portion of the sucking pipe 21. The
yarns Y having been cut are sucked into the sucking pipe 21 through an opening at
the leading end and are retained. After the sucking pipe 21 sucks the yarns Y, as
shown in FIG. 3(c), the sucking pipe 21 is driven to retract leftward by the fluid
cylinder 27.
[0048] As the yarns Y spun out from the spinning apparatus 2 are retained by the yarn holding
unit 5, the yarns Y are not sent to the take-up unit 6 and the winding device 7 which
are on the downstream side. This allows the operator to perform operations such as
trouble shooting of the take-up unit 6 or the winding device 7. When it becomes possible
to start the production of the yarns Y, the yarns Y retained by the yarn holding unit
5 are handed to the yarn threading unit 23, and yarn threading onto the take-up unit
6 and the winding device 7 is carried out by the yarn threading unit 23. Alternatively,
the operator may receive the yarns Y from the yarn holding unit 5 by using the suction
gun and perform the yarn threading.
[0049] As shown in FIG. 1, the take-up unit 6 takes up the yarns Y coming down from the
second floor through the yarn passing hole 9a which is formed through the partition
wall 9. The take-up unit 6 includes two godet rollers 15 and 16. The two godet rollers
15 and 16 are rotationally driven by motors 17 and 18 (see FIG. 2), respectively.
By the two godet rollers 15 and 16, the take-up unit 6 sends the yarns Y from the
spinning apparatus 2 to the winding device 7.
[0050] Among the two godet rollers 15 and 16, the godet roller 15 on the upstream in the
yarn running direction is provided at a position substantially immediately below the
yarn holding unit 5. In the meanwhile, the godet roller 16 on the downstream in the
yarn running direction is arranged to be movable between a position for yarn placement
close to the godet roller 15 (i.e., a position indicated by two-dot chain lines in
FIG. 1) and a position for yarn production immediately above the winding device 7
(i.e., a position indicated by full lines in FIG. 1). The positional switching of
the godet roller 16 is carried out by a positional switching mechanism which has an
appropriate arrangement including a positional switching motor 19 (see FIG. 2). When
yarn placement onto the two godet rollers 15 and 16 is performed, the positional switching
mechanism moves the godet roller 16 to the lower yarn placement position to facilitate
the yarn placement. When the yarn placement finishes, the positional switching mechanism
moves the godet roller 16 up from the yarn placement position to the yarn production
position.
[0051] The winding device 7 includes members such as a turret 30, two bobbin holders 31,
a traverse unit 32, and a contact roller 33. By the turret 30, the two bobbin holders
31 are rotatably supported. As the turret 30 rotates, the positions of the two bobbin
holders 31 are changed upside down. To each bobbin holder 31, bobbins B are attached.
The traverse unit 32 includes traverse guides 32a which correspond to the respective
bobbins B attached to the bobbin holder 31. As each traverse guide 32a reciprocates,
the yarn Y is wound onto the bobbin B while being traversed about a fulcrum guide
34, with the result that a package P is formed. The contact roller 33 makes contact
with the packages P formed on the upper bobbin holder 31 to apply contact pressure
to each package P.
[0052] The yarn threading unit 23 is a yarn threading robot controlled by a program. The
yarn threading unit 23 includes a main body 24 which is movable in the left-right
direction (i.e., the direction orthogonal to the plane of FIG. 1) and a yarn threading
arm 25 which is provided on the main body and has a multi-joint section to be freely
movable in a three-dimensional manner. At the leading end portion of the yarn placement
arm 25, a cutter 54 for cutting the yarns Y and a yarn sucking section 55 for sucking
the yarns Y cut by the cutter 54 are provided (see FIG. 12 and FIG. 13). when a yarn
threading requirement signal is received from a spun yarn take-up apparatus 1 among
the spun yarn take-up apparatuses 1 lined up in the left-right direction, the yarn
threading unit 23 moves to a position forward of that spun yarn take-up apparatus
1 and performs yarn placement onto the two godet rollers 15 and 16 of the take-up
unit 6 and onto the winding device 7.
[0053] The controller 8 controls the overall operation of the spun yarn take-up apparatus
1. As shown in FIG. 2, the controller 8 receives signals from a winding controller
35 controlling the winding device 7, sensors, and switches. Furthermore, the controller
8 controls the rotation of the godet rollers 15 and 16 driven by the motors 17 and
18. Furthermore, the controller 8 controls the positional switching motor 19 to perform
positional switching of the godet roller 16. Furthermore, the controller 8 controls
the driving of the yarn holding unit 5 by the fluid cylinder 27, the later-described
moving up and moving down of the yarn take-down device 4 by an elevation cylinder
40, the yarn threading by the yarn threading unit 23 (see FIG. 12), and so on.
(Yarn Take-Down Device)
[0054] Now, the details of the yarn take-down device 4 and its surroundings will be given.
FIG. 4 shows an upper structure of the spun yarn take-up apparatus 1 including the
yarn take-down device 4. FIG. 5 is a perspective view of the yarn take-down device
4. As shown in FIG. 4 and FIG. 5, an elevation cylinder 40 is provided to extend from
the second floor of the building to a position in the vicinity of the yarn holding
unit 5 on the first floor, through the yarn passing hole 9a of the partition wall
9. The yarn take-down device 4 is attached to the elevation cylinder 40 and is movable
between an upper limit position (indicated by full lines in FIG. 4) on the second
floor and a lower limit position (indicated by two-dot chain lines in FIG. 4) in the
vicinity of the yarn holding unit 5 on the first floor.
[0055] As shown in FIG. 4 and FIG. 5, the yarn take-down device 4 includes a pipe member
41 and two yarn threading portions 42. The pipe member 41 extends substantially horizontally
(front-back direction) and is attached, at its back end portion, to the elevation
cylinder 40 via a connection member 43. Each yarn threading portion 42 is a yarn guide
fixedly provided on the pipe member 41. The two yarn threading portions 42 are attached
to the pipe member 41 with an interval in the front-back direction. The distance L
in the front-back direction between the two yarn threading portions 42 is, for example,
preferably 30mm or longer, and more preferably 120mm or longer.
[0056] As pressure fluid is supplied from the fluid supplying unit 44 (see FIG. 2) to the
elevation cylinder 40, the connection member 43 is moved up and down by the pressure
of the pressure fluid, with the result that the yarn take-down device 4 moves up and
down. Furthermore, as shown in FIG. 4, an operation switch 50 for operating the elevation
cylinder 40 is provided on the second floor of the building.
[0057] In the yarn production in which the yarns Y from the spinning apparatus 2 are taken
up by the take-up unit 6 and are then wound by the winding device 7, each yarn Y from
the spinning apparatus 2 runs on a yarn path YP (hereinafter, the yarn path in yarn
production) extending straight down toward the godet roller 15 via the guides 13 and
14 and the yarn holding unit 5. In the meanwhile, as shown in FIG. 4, the position
of the yarn take-down device 4 is deviated backward as compared to the position directly
below the spinneret 10a of the spinning apparatus 2. With this arrangement, the yarn
take-down device 4 moves up and down along a passage which is deviated backward from
the yarn path YP in yarn production, and takes the yarns Y down to a position deviated
from the yarn path YP when the yarn take-down device 4 reaches the first floor.
[0058] At a position which is around the yarn passing hole 9a of the partition wall 9 and
is backward of the yarn take-down device 4, a yarn sucking device 47 (first yarn sucking
unit of the present invention) is provided. This yarn sucking device 47 sucks the
yarns Y spun out from the spinning apparatus 2 in order to temporarily retain the
yarns Y when the yarn take-down device 4 takes the yarns Y down to the first floor.
[0059] In the horizontal direction which is in parallel to the partition wall 9, the yarn
sucking device 47 may be able to come close to and move away from the yarn passing
hole 9a. With this arrangement, the yarn sucking device 47 is provided around the
yarn passing hole 9a only when the yarns are taken down, and the yarn sucking device
47 is moved away from the yarn passing hole 9a in other cases to avoid interference.
[0060] As shown in FIG. 4 and FIG. 5, between the yarn take-down device 4 and the yarn sucking
device 47, a yarn convergence guide 46 is provided to protrude to a position above
the yarn passing hole 9a of the partition wall 9. This yarn convergence guide 46 is
configured to converge the yarns Y sucked by the yarn sucking device 47.
[0061] On the second floor, at a position above the yarn passing hole 9a formed through
the partition wall 9, an elevation detection sensor 48 is provided to detect that
the yarn take-down device 4 is at the upper limit position. In the meanwhile, on the
first floor, at a position below the yarn holding unit 5, a depression detection sensor
49 is provided to detect that the yarn take-down device 4 reaches the lower limit
position. The elevation detection sensor 48 and the depression detection sensor 49
are not limited to any particular sensors. For example, a contact sensor or a non-contact
sensor can be employed as each of these sensors.
[0062] Immediately below the yarn holding unit 5 on the first floor, a yarn shifting member
45 (shifting unit of the present invention) is provided. This yarn shifting member
45 shifts the yarns Y taken down to a position deviated from the yarn path YP in yarn
production, toward the yarn holding unit 5 which is in the vicinity of the yarn path
YP. The yarn shifting member 45 is driven by a yarn shifting driver 53 (see FIG. 2)
formed of a cylinder, a motor, or the like and is swingable within the horizontal
plane between a retracted position where no interference with the yarns Y occurs (FIG.
4) and a yarn shifting position where the yarns Y are shifted toward the yarn holding
unit 5 (FIG. 14).
(Yarn Threading)
[0063] Now, preparations such as yarn threading by an operator at the start of the production
of the yarns Y by the spun yarn take-up apparatus 1 and operations of the spun yarn
take-up apparatus 1 at this stage will be described with reference to FIG. 6 to FIG.
11. Before the start of the yarn production, the operator stands at a position backward
of the yarn passing hole 9a of the partition wall 9 on the second floor, and the operator
performs operations such as cleaning of the spinning apparatus 2 and those related
to the yarn take-down device 4. As shown in FIG. 1, on the first floor, the yarn threading
unit 23 is provided to be movable in the left-right direction (the direction orthogonal
to the plane of FIG. 1). When receiving a yarn threading requirement signal from a
spun yarn take-up apparatus 1, the yarn threading unit 23 moves to that apparatus.
The yarn threading unit 23 then receives the yarns Y taken down by the yarn take-down
device 4 and places the yarns Y onto the two godet rollers 15 and 16 of the take-up
unit 6.
[0064] FIG. 6 shows the spun yarn take-up apparatus 1 immediately after the start of spinning.
Operations regularly performed by the operator on the second floor, after the yarns
spun out from the spinneret 10a are cut and the spinning and the yarn production are
temporarily stopped, are as below. The first one of these operations is cleaning of
the spinneret 10a of the spinning pack 10. This is an operation to remove deposits
on the spinneret 10a and spray silicone onto the spinneret 10a. This operation is
performed almost everyday, for example. Another operation is replacement of the spinning
pack 10. In an apparatus producing yarns for cloths, this operation is performed about
once in a week, for example. After these operations, to start the production again,
it is necessary to thread the yarns Y spun out from the spinneret 10a, from the guides
13 and 14 to the take-up unit 6 and the winding device 7 in order.
[0065] To carry out the yarn placement above, to begin with, the operator on the second
floor places an inclined plate 51 at a position below the cooling unit 3. This inclined
plate 51 is provided to receive polymer 52 in order to prevent the polymer 52 flowing
out from the spinneret 10a from dropping to the first floor during the preparations.
When, for example, the inclined plate 51 is placed, the yarn sucking device 47 provided
around the yarn passing hole 9a of the partition wall 9 may obstruct the placement
of the inclined plate 51. In this connection, the yarn sucking device 47 is preferably
moved from around the yarn passing hole 9a to a remote position in advance.
[0066] FIG. 7 shows the spun yarn take-up apparatus 1 when the yarns are retained by the
yarn sucking device. FIG. 8 shows the spun yarn take-up apparatus 1 when the yarns
are threaded onto the oil guide 13 and the yarn regulating guide 14. FIG. 9 shows
the spun yarn take-up apparatus 1 when the yarns are threaded onto the yarn convergence
guide 46. FIG. 10 shows the spun yarn take-up apparatus 1 immediately before the take
down of the yarns.
[0067] When it becomes possible to spin out yarns Y from the spinning apparatus 2, the operator
on the second floor guides the yarns Y spun out from the spinneret 10a to the yarn
sucking device 47 backward of the yarn passing hole 9a, and causes the yarn sucking
device 47 to suck and retain the yarns Y, as shown in FIG. 7. When the yarns Y are
retained by the yarn sucking device 47, the inclined plate 51 is detached. Furthermore,
as shown in FIG. 8, the operator threads the yarns Y spun out from the spinneret 10a
onto the oil guide 13 and the yarn regulating guide 14.
[0068] Thereafter, as shown in FIG. 5 and FIG. 9, the yarns Y being sucked by the yarn sucking
device 47 are threaded onto the yarn convergence guide 46 protruding to the yarn passing
hole 9a, at a position slightly forward of the yarn sucking device 47. With this,
the yarns Y being sucked by the yarn sucking device 47 are converged. Furthermore,
as shown in FIG. 10, the converged yarns Y are serially threaded onto the two yarn
threading portions 42 of the yarn take-down device 4. As such, as the yarns Y sucked
by the yarn sucking device 47 are threaded onto the yarn convergence guide 46 and
converted, the yarns Y are threaded onto the two yarn threading portions 42 in the
converged state, with the result that yarn threading becomes easy. Furthermore, the
yarns Y are less likely to be scattered when took down by the yarn take-down device
4.
[0069] When the yarns Y are retained by the yarn take-down device 4, the operator on the
second floor operates the operation switch 50 for yarn take down. When a yarn take-down
signal is supplied to the controller 8 from the operation switch 50, the controller
8 controls the fluid supplying unit 44 (see FIG. 2) and drives the elevation cylinder
40, with the result that the yarn take-down device 4 moves down.
[0070] FIG. 11 shows the spun yarn take-up apparatus 1 immediately after the depression
of the yarn take-down device 4. As shown in FIG. 11, the yarn take-down device 4 moves
down from the second floor through the yarn passing hole 9a of the partition wall
9, so that the yarns Y retained by the yarn take-down device 4 are taken down to the
first floor. In so doing, the yarns Y form a substantially V-shaped yarn path which
extends from the spinning apparatus 2 on the second floor to the yarn sucking device
47 on the second floor via the yarn take-down device 4 on the first floor. Furthermore,
because the yarn take-down device 4 moves down along the passage backward of the yarn
path YP in yarn production, the yarns Y retained by the yarn take-down device 4 are
taken down to a position backward of the yarn path YP.
[0071] When the yarn take-down device 4 reaches the lower limit position which is in the
vicinity of the yarn holding unit 5 on the first floor, this state is detected by
the depression detection sensor 49. Upon receiving this detection signal, the controller
8 stops the move down of the yarn take-down device 4 by the elevation cylinder 40,
and causes the yarn take-down device 4 to wait at the lower limit position for a predetermined
waiting time. The waiting time is suitably set in accordance with a later-described
time which is required for handing the yarns Y to the yarn threading unit 23 or the
yarn holding unit 5.
[0072] The yarns Y taken down to the first floor by the yarn take-down device 4 are handed
to the yarn threading unit 23 to be threaded onto the take-up unit 6. At this stage,
when the yarn threading unit 23 has already reached a position forward of the spun
yarn take-up apparatus 1 and has been on standby, the yarns Y are directly handed
from the yarn take-down device 4 to the yarn threading unit 23. In the meanwhile,
when the yarns Y are taken down but the yarn threading unit 23 is not on standby,
the yarns Y are passed to the yarn holding unit 5 and then handed from the yarn holding
unit 5 to the yarn threading unit 23 after the yarn threading unit 23 moves to the
position. Whether the yarns Y taken down by the yarn take-down device 4 are handed
to the yarn threading unit 23 or to the yarn holding unit 5 is determined by the controller
8 based on the positional information of the yarn threading unit 23.
(1) Handover of Yarns to Yarn Threading Unit 23
[0073] Now, handover of the yarns Y from the yarn take-down device 4 to the yarn threading
unit 23 will be described. FIG. 12 shows the spun yarn take-up apparatus 1 when the
yarns are handed to the yarn threading unit 23. FIG. 13 shows the spun yarn take-up
apparatus 1 when the yarns are threaded by the yarn threading unit 23. Upon receiving
the detection signal from the depression detection sensor 49, the controller 8 causes
the yarn threading unit 23 to receive the yarns Y from the yarn take-down device 4.
[0074] As shown in FIG. 12, at the leading end portion of the yarn threading arm 25 of the
yarn threading unit 23, the cutter 54 and the yarn sucking unit 55 are provided. To
begin with, the yarn threading unit 23 moves the leading end portion of the yarn threading
arm 25 to a position between the spinning apparatus 2 and the yarn take-down device
4, i.e., a position on the upstream of the yarn threading portion 42 on the front
side (on the upstream in the yarn running direction) . The cutter 54 is driven at
this position, with the result that each of the yarns Y is cut at a yarn part Ya which
is on the upstream of the yarn take-down device 4. The yarns Y having been cut are
sucked into the yarn sucking unit 55 in the vicinity of the cutter 54 and are retained.
[0075] In regard to the above, because the yarn take-down device 4 is provided with two
yarn threading portions 42, as shown in FIG. 12, the distance between the yarn part
Ya on the upstream of the yarn take-down device 4 and the yarn part Yb on the downstream
of the yarn take-down device 4 is long in each yarn Y. On this account, when the yarn
part Ya on the upstream side is cut by the yarn threading unit 23, the yarn part Yb
on the downstream side is less likely to be cut together with the yarn part Ya.
[0076] When the yarns Y are retained by the yarn threading arm 25, as shown in FIG. 13,
the yarn threading unit 23 operates the yarn threading arm 25 to place the yarns Y
onto the godet rollers 15 and 16 of the take-up unit 6 in order. After the handover
of the yarns Y to the yarn threading unit 23 is finished, the yarn take-down device
4 is no longer required to be on the first floor. On this account, after the above-described
waiting time elapses, the controller 8 moves up the yarn take-down device 4 back to
the second floor by the elevation cylinder 40. Alternatively, after the handover of
the yarns Y, the yarn take-down device 4 may not automatically return to the second
floor but manually return to the second floor as the operator operates the operation
switch 50.
[0077] The yarn take-down device 4 moves up and down along the passage backward of the yarn
path YP in yarn production on the first floor, and takes the yarns Y down to a position
deviated from the yarn path YP. For this reason, even if the yarns Y are handed to
the yarn threading unit 23 on the first floor and the yarn take-down device 4 is moved
back to the second floor while the yarns Y are threaded onto the take-up unit 6, the
yarn take-down device 4 does not interfere with the yarns Y threaded onto the take-up
unit 6.
(2) Handover of Yarns to Yarn Holding Member 5
[0078] Now, handover of the yarns Y from the yarn take-down device 4 to the yarn holding
unit 5 will be described. FIG. 14 shows the spun yarn take-up apparatus 1 when the
yarns are handed to the yarn holding unit 5. FIG. 15 shows the spun yarn take-up apparatus
1 after the completion of the handover of the yarns to the yarn holding unit 5. Upon
receiving the detection signal from the depression detection sensor 49, the controller
8 sends a control signal to the yarn shifting driver 53 (see FIG. 2) which swings
the yarn shifting member 45 and to the yarn holding unit 5, so as to cause them to
perform the handover of the yarns Y to the yarn holding unit 5.
[0079] To begin with, the yarn shifting driver 53 swings the yarn shifting member 45 from
the retracted position shown in FIG. 11 to the yarn shifting position shown in FIG.
14. With this, as shown in FIG. 14, the yarns Y taken down by the yarn take-down device
4 are moved to be close to the yarn path YP in yarn production.
[0080] Subsequently, the yarn holding unit 5 sucks and retains the yarns Y shifted by the
yarn shifting member 45. To be more specific, as shown in FIG. 3(b), the sucking pipe
21 advances by means of the fluid cylinder 27. As a result, the yarns Y taken down
by the yarn take-down device 4 are cut by the cutter 22 provided at the leading end
portion of the sucking pipe 21. The yarns Y having been cut are sucked and retained
by the sucking pipe 21. With this, as shown in FIG. 15, the yarns Y taken down by
the yarn take-down device 4 are handed to the yarn holding unit 5. Thereafter, in
a manner similar to the handover of the yarns Y to the yarn threading unit 23, the
controller 8 moves up the yarn take-down device 4 back to the second floor by the
elevation cylinder 40, after a predetermined waiting time elapses.
[0081] As such, the yarn holding unit 5 of the present embodiment is able to suck the yarns
Y which are taken down by the yarn take-down device 4 at a position deviated from
the yarn path YP in yarn production. For this reason, it is unnecessary to arrange
the yarn threading unit 23 to wait for the yarns Y in advance, when the yarns Y are
taken down from the second floor. In other words, the operator working on the second
floor is allowed to take yarns down at any timing, no matter whether the yarn threading
unit 23 on the first floor waits for the yarns Y.
[0082] After the yarns Y are handed to the yarn holding unit 5 shown in FIG. 15, the yarn
threading unit 23 (see FIG. 1) moves to a position forward of the spun yarn take-up
apparatus 1. The yarn threading unit 23 cuts the yarns Y retained by the yarn holding
unit 5 by the cutter 54 and receives the yarns Y by sucking them by the yarn sucking
unit 55. The yarn threading unit 23 then places the yarns Y onto the godet rollers
15 and 16 of the take-up unit 6 by moving the yarn threading arm 25.
[0083] In the spun yarn take-up apparatus 1 of the present embodiment described above, the
yarn take-down device 4 includes two yarn threading portions 42 which are distanced
from each other in the front-back direction, and each of the yarns Y is threaded onto
the two yarn threading portions 42 in order. As each of the yarns Y is threaded onto
the two yarn threading portions 42, the yarn part Ya on the upstream of the yarn take-down
device 4 is distanced from the yarn part Yb on the downstream of the yarn take-down
device 4. This prevents a yarn Y from being erroneously cut at two parts by the cutter
54 of the yarn threading unit 23 or the cutter 22 of the yarn holding unit 5, with
the result that the success rate of the handover of the yarns Y is improved.
[0084] The distance L in the front-back direction between the two yarn threading portions
42 is preferably 30mm or longer, and more preferably 120mm or longer. With this, the
distance between the two yarn parts Ya and Yb threaded onto the two yarn threading
portions 42, respectively, is long. This certainly prevents a single yarn Y from being
erroneously captured at two parts. Furthermore, when the distance L is 120mm or longer,
the yarn threading arm 25 is able to pass the gap between the two yarn threading portions
42. This facilitates the handover of the yarns Y to the yarn threading arm 25. Even
is the distance L is much shorter than this, the handover of the yarns Y is successfully
done when the distance L is at least about 30mm, by advancing only a part of the yarn
threading arm 25 (e.g., the cutter 54 or the yarn sucking unit 55).
[0085] The following will describe modifications of the above-described embodiment of the
present invention. The members identical with those in the embodiment above will be
denoted by the same reference numerals and the explanations thereof are not repeated.
- 1] While in the embodiment above the yarns Y taken down to the first floor by the
yarn take-down device 4 are handed to the yarn threading unit 23 and are threaded
onto the take-up unit 6 by the yarn threading unit 23, the yarn threading unit 23
is not prerequisite. The yarns Y taken down to the first floor by the yarn take-down
device 4 may be received by the operator on the first floor by means of the suction
gun, and the yarn threading may be manually done. Also in this case, it is possible
to prevent a yarn Y from being erroneously caught at two parts, because the yarn part
Ya on the upstream side is distanced from the yarn part Yb on the downstream side
by the two yarn threading portions 42 of the yarn take-down device 4.
- 2] In the embodiment above, the yarn take-down device 4 moves up and down along a
passage backward of the yarn path YP in yarn production, and takes the yarns Y down
to a position deviated rearward from the yarn path YP on the first floor. In this
regard, the position where the yarns Y are taken down may be deviated frontward, leftward,
or rightward from the yarn path YP.
In the embodiment above, the yarn threading unit 23 moves to the front side of the
spun yarn take-up apparatus 1 and the yarn threading unit 23 performs the yarn threading
from the front side. In connection with this, when the yarn take-down device 4 is
arranged to take the yarns Y down to a position deviated frontward from the yarn path
YP, the yarn threading unit 23 is able to easily receive the yarns Y from the yarn
take-down device 4. This is true for a case where the operator receives the yarns
Y from the front side by means of the suction gun, too,
- 3] While in the embodiment above the yarn shifting member 45 shifts the yarns Y to
the yarn holding unit 5 by swinging, the disclosure is not limited to this arrangement.
For example, as described in Japanese Unexamined Patent Publication No. 2013-57148 (FIG. 10), the yarns may be shifted by linear motion.
In addition to the above, the yarn shifting member is not prerequisite. For example,
when the yarns Y are taken down by the yarn take-down device 4 to a position deviated
rightward (the side close to the viewer of FIG. 1) from the yarn path YP in yarn production,
the yarn holding unit 5 is able to suck the yarns Y without the help of the yarn shifting
member 45. That is to say, as shown in FIG. 3, the yarn holding unit 5 is provided
with the sucking pipe 21 which advances and retracts in the left-right directions
(i.e., the directions of moving close to and away from the yarns Y) and the cutter
22 provided at the leading end portion of the sucking pipe 21. Even if the position
where the yarns Y are taken down is deviated rightward from the yarn path YP, the
yarns Y are cut as the sucking pipe 21 advances and the cutter 22 moves rightward.
The yarns Y having been cut by the cutter 22 are sucked by the sucking pipe 21. In
this case, the leading end portion of the sucking pipe 21 of the yarn holding unit
5 is equivalent to a second yarn sucking unit of the present invention.
- 4] On the second floor of the building, the yarn sucking device 47 which sucks and
retains the yarns Y spun out from the spinning apparatus 2 may be a portable device
such as a suction gun. In a single spun yarn take-up apparatus 1, when the operator
finishes the operations on the second floor and moves the yarn take-down device 4
down to the first floor, and the handover of the yarns Y to the yarn threading unit
23 or the yarn holding unit 5 is completed, the yarns Y leave the yarn sucking device
47 on the second floor (see FIG. 13 and FIG. 15). In other words, the yarn sucking
device 47 becomes no longer required. On this account, when the take down of the yarns
is finished in one spun yarn take-up apparatus 1, the yarn sucking device 47 may be
carried to another place to perform other operations (e.g., preparations for another
spun yarn take-up apparatus 1).
- 5] In the embodiment above, for each of the yarns Y, the yarn threading unit 23 cuts
the yarn part Ya on the upstream of the yarn take-down device 4 and receives the yarn
Y. Alternatively, as shown in FIG. 16, the yarn threading unit 23 may cut the yarn
Y between the two yarn threading portions 42 and receive the yarn Y. Also in this
case, erroneous cutting of one yarn at two parts is less likely to occur. Furthermore,
because vibrations of the yarn Y is restrained at a part between the two yarn threading
portions 42 on account of the proximity to the yarn threading portions, the success
rate of yarn cutting is high. Similarly, when the yarns Y are received by the yarn
holding unit 5 or when the yarn threading is performed by the operator by using the
suction gun, a yarn may be cut at a position between the two yarn threading portions
42 and received.
In addition to the above, because each yarn is threaded onto the two yarn threading
portions, cutting and handover of the yarns Y can be done at three positions, namely
a position upstream of the yarn take-down device 4, a position between the two yarn
threading portions 42, and a position on the downstream of the yarn take-down device
4. It is therefore possible to differentiate a captured part in accordance with the
size of a tool used for handing the yarns Y. For example, assume that the yarn holding
unit 5 is larger in size than the leading end portion of the yarn threading arm 25
of the yarn threading unit 23. In this case, when the yarn Y is received by the large
yarn holding unit 5, the yarn Y is received after the yarn part Ya on the upstream
of the yarn take-down device 4 is cut as shown in FIG. 14. In the meanwhile, when
the yarn Y is received by the small yarn threading unit 23, the yarn Y is received
after the yarn Y is cut between the two yarn threading portions 42 as shown in FIG.
16.
- 6] While in the embodiment above the two yarn threading portions 42 of the yarn take-down
device 4 are distanced from each other in the front-back direction, the direction
in which the two yarn threading portions 42 are lined up (i.e., the direction in which
the yarn part on the upstream of the yarn take-down device 4 is distanced from the
yarn part on the downstream) may be any directions on condition that the direction
intersects with the up-down direction. For example, the two yarn threading portions
42 may be lined up at an interval in the left-right direction.
- 7] The number of the yarn threading portions 42 of the yarn take-down device 4 is
not limited to 2 and may be 3 or more. When the number of the yarn threading portions
42 is three or more, the distance between the two yarn threading portions 42 which
are the outermost ones in a direction intersecting with the up-down direction is preferably
a predetermined distance (e.g., 30mm) or longer.
- 8] Each yarn threading portion of the yarn take-down device 4 may be a roller which
is freely rotatable. This arrangement restrains damage of the yarn Y at the yarn threading
portion, with the result that yarn breakage at the time of yarn threading is restrained.
- 9] The elevation detection sensor 48 and the depression detection sensor 49 which
detect that the yarn take-down device 4 reaches the upper limit position and the lower
limit position are not prerequisite. For example, as a driving unit for moving the
yarn take-down device 4 up and down, a motor which is positionally controllable such
as a servo motor may be employed. In such a case, the sensors 48 and 49 above are
unnecessary. In the meanwhile, the operator may manually stop the yarn take-down device
4 by visually checking the position of the yarn take-down device 4. The sensors 48
and 49 are unnecessary also in this case.
- 10] While the spun yarn take-up apparatus of the embodiment above is an apparatus
for producing POY, which winds yarns Y spun out from the spinning apparatus 2 directly
onto packages P without drawing them, the spun yarn take-up apparatus may be an apparatus
for producing FDY, which winds spun yarns Y onto packages P after drawing them. In
the apparatus for producing FDY, the take-up unit 6 includes, in addition to the two
godet rollers 15 and 16, drawing rollers which are provided on the upstream in the
yarn running direction of the rollers 15 and 16 to draw the yarns Y.
1. A spun yarn take-up apparatus (1) taking up yarns (Y) spun out from a spinning apparatus
(2) provided in a first yarn processing space, comprising:
a take-up unit (6) provided in a second yarn processing space below the first yarn
processing space and configured to take up the yarns (Y) spun out from the spinning
apparatus (2); and
a first yarn sucking unit (47) provided in the first yarn processing space and configured
to suck and retain the yarns (Y) spun out from the spinning apparatus (2);
characterized by
a yarn take-down device (4) configured to take the yarns (Y) retained by the first
yarn sucking unit (47) down from the first yarn processing space to the second yarn
processing space,
the yarn take-down device (4) including yarn threading portions (42) which are provided
at intervals in a direction intersecting with an up-down direction, each of the yarns
(Y) being threaded onto the yarn threading portions (42) in order.
2. The spun yarn take-up apparatus (1) according to claim 1, wherein, the distance between
two yarn threading portions (42) which are outermost ones in the intersecting direction
among the yarn threading portions (42) is 30mm or longer.
3. The spun yarn take-up apparatus (1) according to claim 2, wherein, the distance between
two yarn threading portions (42) which are outermost ones in the intersecting direction
among the yarn threading portions (42) is 120mm or longer.
4. The spun yarn take-up apparatus (1) according to any one of claims 1 to 3, wherein,
the yarn take-down device (4) takes the yarns (Y) down to a position which is in the
second yarn processing space and is deviated from a yarn path when the yarns (Y) are
taken up by the take-up unit (6).
5. The spun yarn take-up apparatus (1) according to claim 4, further comprising a yarn
convergence guide (46) which is provided in the first yarn processing space and is
configured to converge the yarns (Y) taken down by the yarn take-down device (4).
6. The spun yarn take-up apparatus (1) according to claim 4 or 5, further comprising
a yarn holding unit (5) which is provided in the second yarn processing space and
sucks and retains the yarns (Y) supplied from the spinning apparatus (2),
the yarn holding unit (5) being capable of sucking the yarns (Y) taken down to the
position deviated from the yarn path by the yarn take-down device (4).
7. The spun yarn take-up apparatus (1) according to claim 6, wherein,
the yarn holding unit (5) includes a cutter (22) by which the yarns (Y) are cut and
a second yarn sucking unit configured to suck the yarns (Y) cut by the cutter (22),
the cutter (22) and the second yarn sucking unit being capable of moving close to
and away from the yarns (Y) taken down by the yarn take-down device (4).
8. The spun yarn take-up apparatus (1) according to claim 6, further comprising
a shifting unit (45) configured to move, toward the yarn holding unit (5), the yarns
(Y) taken down by the yarn take-down device (4).
9. The spun yarn take-up apparatus (1) according to any one of claims 6 to 8, wherein,
the yarn holding unit (5) cuts the yarns (Y) between the spinning apparatus (2) and
the yarn take-down device (4) and receives the yarns (Y).
10. The spun yarn take-up apparatus (1) according to any one of claims 6 to 8, wherein,
the yarn holding unit (5) cuts the yarns (Y) between neighboring two of the yarn threading
portions (42) and receives the yarns (Y).
11. The spun yarn take-up apparatus (1) according to any one of claims 1 to 10, wherein,
the first yarn sucking unit (47) is portable.
12. The spun yarn take-up apparatus (1) according to any one of claims 1 to 11, further
comprising
a yarn threading unit (23) which is provided in the second yarn processing space and
is configured to cut and receive the yarns (Y) taken down by the yarn take-down device
(4) and thread the received yarns (Y) onto the take-up unit (6).
13. The spun yarn take-up apparatus (1) according to claim 12, wherein,
the yarn threading unit (23) cuts the yarns (Y) between the spinning apparatus (2)
and the yarn take-down device (4) and receives the yarns (Y).
14. The spun yarn take-up apparatus (1) according to claim 12, wherein,
the yarn threading unit (23) cuts the yarns (Y) between neighboring two of the yarn
threading portions (42) and receives the yarns (Y).
1. Aufnahmevorrichtung (1) für gesponnenes Garn, die Garne (Y) aufnimmt, die von einer
in einem ersten Garnverarbeitungsraum bereitgestellten Spinnvorrichtung (2) ausgesponnen
werden, umfassend:
eine Aufnahmeeinheit (6), die in einem zweiten Garnverarbeitungsraum unterhalb des
ersten Garnverarbeitungsraums bereitgestellt und konfiguriert ist, die Garne (Y),
die von der Spinnvorrichtung (2) ausgesponnen werden, aufzunehmen; und
eine erste Garnansaugeinheit (47), die in dem ersten Garnverarbeitungsraum bereitgestellt
und konfiguriert ist, die Garne (Y), die von der Spinnvorrichtung (2) ausgesponnen
werden, anzusaugen und aufzubewahren;
gekennzeichnet durch
eine Garnabsenkvorrichtung (4), die konfiguriert ist, die Garne (Y), die von der ersten
Garnansaugeinheit (47) aufbewahrt werden, von dem ersten Garnverarbeitungsraum zu
dem zweiten Garnverarbeitungsraum abzusenken,
wobei die Garnabsenkvorrichtung (4) Garnführungsabschnitte (42) beinhaltet, die in
Intervallen in einer Richtung, die eine Auf-Ab-Richtung kreuzt, bereitgestellt sind,
wobei jedes von den Garnen (Y) der Reihe nach auf die Garnführungsabschnitte (42)
geführt wird.
2. Aufnahmevorrichtung (1) für gesponnenes Garn nach Anspruch 1, wobei der Abstand zwischen
zwei Garnführungsabschnitten (42), die in der kreuzenden Richtung unter den Garnführungsabschnitten
(42) die äußersten sind, 30 mm oder länger ist.
3. Aufnahmevorrichtung (1) für gesponnenes Garn nach Anspruch 2, wobei der Abstand zwischen
zwei Garnführungsabschnitten (42), die in der kreuzenden Richtung unter den Garnführungsabschnitten
(42) die äußersten sind, 120 mm oder länger ist.
4. Aufnahmevorrichtung (1) für gesponnenes Garn nach einem der Ansprüche 1 bis 3, wobei
die Garnabsenkvorrichtung (4) die Garne (Y) zu einer Position hinunter absenkt, die
sich in dem zweiten Garnverarbeitungsraum befindet und von einem Garnweg abgelenkt
ist, wenn die Garne (Y) von der Aufnahmeeinheit (6) aufgenommen werden.
5. Aufnahmevorrichtung (1) für gesponnenes Garn nach Anspruch 4, weiter eine Garnannäherungsführung
(46) umfassend, die in dem ersten Garnverarbeitungsraum bereitgestellt ist und konfiguriert
ist, die von der Garnabsenkvorrichtung (4) abgesenkten Garne (Y) anzunähern.
6. Aufnahmevorrichtung (1) für gesponnenes Garn nach Anspruch 4 oder 5, weiter umfassend
eine Garnhalteeinheit (5), die in dem zweiten Garnverarbeitungsraum bereitgestellt
ist und die von der Spinnvorrichtung (2) gelieferten die Garne (Y) ansaugt und aufbewahrt,
wobei die Garnhalteeinheit (5) geeignet ist, die von der Garnabsenkvorrichtung (4)
zu der von dem Garnweg abgelenkten Position abgesenkten Garne (Y) anzusaugen.
7. Aufnahmevorrichtung (1) für gesponnenes Garn nach Anspruch 6, wobei
die Garnhalteeinheit (5) ein Messer (22), von welchem die Garne (Y) abgeschnitten
werden, und eine zweite Garnansaugeinheit, die konfiguriert ist, die von dem Messer
(22) abgeschnittenen Garne (Y) anzusaugen, beinhaltet,
wobei das Messer (22) und die zweite Garnansaugeinheit geeignet sind, sich nahe zu
und weg von den von der Garnabsenkvorrichtung (4) abgesenkten Garnen (Y) zu bewegen.
8. Aufnahmevorrichtung (1) für gesponnenes Garn nach Anspruch 6, weiter umfassend
eine Verschiebeeinheit (45), die konfiguriert ist, die von der Garnabsenkvorrichtung
(4) abgesenkten Garne (Y) in Richtung der Garnhalteeinheit (5) zu bewegen.
9. Aufnahmevorrichtung (1) für gesponnenes Garn nach einem der Ansprüche 6 bis 8, wobei
die Garnhalteeinheit (5) die Garne (Y) zwischen der Spinnvorrichtung (2) und der Garnabsenkvorrichtung
(4) abschneidet und die Garne (Y) aufnimmt.
10. Aufnahmevorrichtung (1) für gesponnenes Garn nach einem der Ansprüche 6 bis 8, wobei
die Garnhalteeinheit (5) die Garne (Y) zwischen benachbarten zwei von den Garnführungsabschnitten
(42) abschneidet und die Garne (Y) aufnimmt.
11. Aufnahmevorrichtung (1) für gesponnenes Garn nach einem der Ansprüche 1 bis 10, wobei
die erste Garnansaugeinheit (47) transportabel ist.
12. Aufnahmevorrichtung (1) für gesponnenes Garn nach einem der Ansprüche 1 bis 11, weiter
umfassend
eine Garnführungseinheit (23), die in dem zweiten Garnverarbeitungsraum bereitgestellt
und konfiguriert ist, die von der Garnabsenkvorrichtung (4) abgesenkten Garne (Y)
abzuschneiden und aufzunehmen und die aufgenommenen Garne (Y) auf die Aufnahmeeinheit
(6) zu führen.
13. Aufnahmevorrichtung (1) für gesponnenes Garn nach Anspruch 12, wobei
die Garnführungseinheit (23) die Garne (Y) zwischen der Spinnvorrichtung (2) und der
Garnabsenkvorrichtung (4) abschneidet und die Garne (Y) aufnimmt.
14. Aufnahmevorrichtung (1) für gesponnenes Garn nach Anspruch 12, wobei
die Garnführungseinheit (23) die Garne (Y) zwischen benachbarten zwei von den Garnführungsabschnitten
(42) abschneidet und die Garne (Y) aufnimmt.
1. Appareil de rattrapage de fil fin (1) rattrapant des fils (Y) filés à partir d'un
appareil de filage (2) fourni dans un premier espace de traitement de fil, comprenant
:
une unité de rattrapage (6) fournie dans un second espace de traitement de fil en
dessous du premier espace de traitement de fil et configurée pour rattraper les fils
(Y) filés à partir de l'appareil de filage (2) ; et
une première unité d'aspiration de fil (47) fournie dans le premier espace de traitement
de fil et configurée pour aspirer et retenir les fils (Y) filés à partir de l'appareil
de filage (2) ;
caractérisé par
un dispositif de descente de fil (4) configuré pour descendre les fils (Y) retenus
par la première unité d'aspiration de fil (47) du premier espace de traitement de
fil au second espace de traitement de fil,
le dispositif de descente de fil (4) incluant des parties d'enfilage de fil (42) qui
sont fournies à des intervalles dans une direction intersectant une direction haut-bas,
chacun des fils (Y) étant enfilé sur les parties d'enfilage de fil (42) dans l'ordre.
2. Appareil de rattrapage de fil fin (1) selon la revendication 1, dans lequel la distance
entre deux parties d'enfilage de fil (42) qui sont les plus extérieures dans la direction
d'intersection parmi les parties d'enfilage de fil (42) est de 30 mm ou plus longue.
3. Appareil de rattrapage de fil fin (1) selon la revendication 2, dans lequel la distance
entre deux parties d'enfilage de fil (42) qui sont les plus extérieures dans la direction
d'intersection parmi les parties d'enfilage de fil (42) est de 120 mm ou plus longue.
4. Appareil de rattrapage de fil fin (1) selon l'une quelconque des revendications 1
à 3, dans lequel le dispositif de descente de fil (4) descend les fils (Y) jusqu'à
une position qui est dans le second espace de traitement de fil et est déviée d'un
trajet de fil lorsque les fils (Y) sont rattrapés par l'unité de rattrapage (6).
5. Appareil de rattrapage de fil fin (1) selon la revendication 4, comprenant en outre
un guide de convergence de fils (46) qui est fourni dans le premier espace de traitement
de fil et est configuré pour faire converger les fils (Y) descendus par le dispositif
de descente de fil (4).
6. Appareil de rattrapage de fil fin (1) selon la revendication 4 ou 5, comprenant en
outre
une unité de maintien de fil (5) qui est fournie dans le second espace de traitement
de fil et aspire et retient les fils (Y) fournis à partir de l'appareil de filage
(2),
l'unité de maintien de fil (5) étant capable d'aspirer les fils (Y) descendus jusqu'à
la position déviée du trajet de fil par le dispositif de descente de fil (4).
7. Appareil de rattrapage de fil fin (1) selon la revendication 6, dans lequel
l'unité de maintien de fil (5) inclut un coupe-fils (22) par lequel les fils (Y) sont
coupés et une seconde unité d'aspiration de fil configurée pour aspirer les fils (Y)
coupés par le coupe-fils (22),
le coupe-fils (22) et la seconde unité d'aspiration de fil étant capables de se rapprocher
et de s'éloigner des fils (Y) descendus par le dispositif de descente de fil (4).
8. Appareil de rattrapage de fil fin (1) selon la revendication 6, comprenant en outre
une unité de repositionnement (45) configurée pour déplacer, vers l'unité de maintien
de fil (5), les fils (Y) descendus par le dispositif de descente de fil (4).
9. Appareil de rattrapage de fil fin (1) selon l'une quelconque des revendications 6
à 8, dans lequel
l'unité de maintien de fil (5) coupe les fils (Y) entre l'appareil de filage (2) et
le dispositif de descente de fil (4) et reçoit les fils (Y).
10. Appareil de rattrapage de fil fin (1) selon l'une quelconque des revendications 6
à 8, dans lequel
l'unité de maintien de fil (5) coupe les fils (Y) entre deux voisines des parties
d'enfilage de fil (42) et reçoit les fils (Y).
11. Appareil de rattrapage de fil fin (1) selon l'une quelconque des revendications 1
à 10, dans lequel
la première unité d'aspiration de fil (47) est portable.
12. Appareil de rattrapage de fil fin (1) selon l'une quelconque des revendications 1
à 11, comprenant en outre
une unité d'enfilage de fil (23) qui est fournie dans le second espace de traitement
de fil et est configurée pour couper et recevoir les fils (Y) descendus par le dispositif
de descente de fil (4) et enfiler les fils reçus (Y) sur l'unité de rattrapage (6).
13. Appareil de rattrapage de fil fin (1) selon la revendication 12, dans lequel
l'unité d'enfilage de fil (23) coupe les fils (Y) entre l'appareil de filage (2) et
le dispositif de descente de fil (4) et reçoit les fils (Y).
14. Appareil de rattrapage de fil fin (1) selon la revendication 12, dans lequel
l'unité d'enfilage de fil (23) coupe les fils (Y) entre deux voisines des parties
d'enfilage de fil (42) et reçoit les fils (Y).