[0001] The following invention relates to a device for the preparation of flock fibres to
be supplied to a carder, i.e. a batt-forming machine.
[0002] The term batt-forming line refers to a set of machines like the one of
EP 1 262 580 A for the treatment of fibres, disposed up-line from the carding machine, which treat
the fibre accumulated in bales to supply it, in flock and opportune conditions, to
the carding machine.
[0003] Batt-forming lines are currently known primarily comprising a machine with a pick-up
trolley, for picking up fibre from the bales, a porcupine, for opening and cleaning
the fibres, a mixer, for mixing the fibre, and auxiliary devices for moving the fibre
and feeding the carding machine.
[0004] The abovementioned machines are disposed according to a preset sequence that assures
the obtaining of optimum conditions of the flock fibre supplied to the carding machine.
[0005] The transfer of the fibre from one machine to the next takes places in feeding pipes,
generally, in air pressurised or depressurised currents generated by fans.
[0006] Such characteristic of known batt-forming lines however, currently presents a number
of drawbacks.
[0007] Such drawbacks include the fact that although transport takes place in air currents,
the processing performed by certain machines is in part frustrated.
[0008] For instance, the opening action performed by the openers is partially frustrated
by a partial compacting that the fibre undergoes as it accumulates in the mixer and
opener silos. It is known that this negatively influences the efficacy of both fibre
mixing and cleaning.
[0009] The aim of the present invention is to make a batt-forming machine able to satisfy
the aforesaid requirements and overcome the drawbacks mention relating to the current
art.
[0010] This aim is achieved by a batt-forming machine made in accordance with claim 1 below.
The claims dependent hereof describe variants of the present invention.
[0011] Further characteristics and advantages of the batt-forming machine according to the
present invention will be further evident in view of the detailed description,
wherein:
[0012] - figure 1 illustrates a batt-forming line comprising a batt-forming machine according
to the present invention, in a preferred embodiment;
[0013] - figure 2 illustrates the batt-forming machine of figure 1;
[0014] - figure 3 represents an enlargement of detail III of figure 2;
[0015] - figure 3a illustrates a side view of a batt-forming machine opening wheel;
[0016] - figure 4 represents an enlargement of detail IV of figure 2;
[0017] - figures 5 to 7 illustrate further variants of the batt-forming machine
[0018] - figures 8 illustrates a further variant of the batt-forming machine according to
the present invention;
[0019] - figures 9 and 10 illustrate further embodiment variants of a zone of the batt-forming
machine
[0020] - figures 11 and 12 illustrate batt-forming lines
[0021] With reference to the appended drawings, 1 is used to indicate the whole stretch
of a batt-forming line of a fibre treatment system; the term "batt-forming line" indicates
a set of machines disposed up-line from a carding machine to supply it with flock
fibres having opportune conditions for carding.
[0022] The batt-forming line comprises a plurality of batt-forming machines 10, at least
one inlet pipe 12 for supplying the fibre to be processed to the machine 10 and at
least one outlet pipe 14 for the supplying of the processed fibre to a subsequent
batt-forming machine 10' or to a subsequent machine for other processing.
[0023] The batt-forming machine 1 comprises at least one silo 16 for accumulating the fibre
to be processed, operatively connected to the inlet pipe 12.
[0024] Preferably, the silo 16 has a chamber 18 for accumulating the fibre, open for example
on the bottom, to allow the fibres access to a processing area, positioned between
the silo 16 and the outlet pipe 14.
[0025] For instance, the silo 16 is formed of a ring-shaped wall that develops around silo
axis S vertical with respect to ground level T on which the machine 10 rests, whereas
the input pipe 12 develops primarily along the substantially horizontal axis of pipe
C.
[0026] In this embodiment, the fibres, by falling and/or under the action of the airflow,
pass from the silo 16 to the processing area.
[0027] The processing area comprises at least one pair of feeding wheels 20, 22, that rotate
respectively around a first axis of rotation Z.
[0028] The rotation of feeding wheels 20, 22 is such as to convey the fibres that descend
from the silo 16 down-line from said wheels, for example, counter-rotating.
[0029] For example, the first feeding wheel 20, shown in figure 3, has a clockwise direction
of rotation, whereas the second feeding wheel 22 has an anticlockwise direction of
rotation.
[0030] The feeding wheel 20, 22 comprises a plurality of profiles 24 that extend primarily
along the first axis of rotation Z and comprise a bottom 26 and folded stretches 28,
slanting with respect to the bottom 26.
[0031] The wheel 20, 22 is made by bringing together the bottoms 26 of the profiles 24 along
an imaginary circumference, so that each bottom is tangent thereto, and making them
mutually joined by uniting the folded stretches 28 thereof. This makes a structure
formed of a succession of recesses 30 separated by cross members 32 formed by two
folded stretches 28 joined to one another.
[0032] The two feeding wheels 20, 22, according to the variant represented, are positioned
angularly and relatively to one another so that the imaginary radial extension of
the cross member 32 of one of the two wheels 20 crosses the corresponding recess 30
of the other wheel 22.
[0033] Advantageously, the fibre fed by the silo 16 gathers in the recesses 30 of the feeding
wheels 20, 22 and is taken down-line thereof undergoing a first channelling, due to
the passage restraints made by the relative disposition of the wheels 20, 22.
[0034] Additionally, the batt-forming machine 10 comprises an opening wheel 40, disposed
down-line of the feeding wheels 20, 22, turning around a second axis of rotation W,
substantially parallel to the first axes of rotation Z.
[0035] Preferably, the second axis of rotation W is disposed between the first axes Z, so
that the opening wheel 40 intercepts the fibre driven by the feeding wheels 20, 22.
[0036] The opening wheel 40 comprises:
- a support box 42, having a prevalent extension in an axial direction, for example,
with a transverse section (orthogonal to axis of rotation W) polygonal, for example
hexagonal, and
- protruding elements 44, protruding radially from the support box 42, disposed staggered
to one another, axially and circumferentially, on the sides of the box 42 (figure
3a).
[0037] Preferably, furthermore, the protruding element 44 comprises a head 46, preferably
disposed at the tip of the elongated element, protruding from the body thereof and
disposed on the side of the direction of rotation of the opening wheel 40.
[0038] Whilst the fibre is fed by the feeding wheels 20, 22 down-line thereof, it encounters
the protruding elements 44 of the opening wheel 40 that tears it into flock and subjects
it to a kind of beating to facilitate the elimination of the polluting residues present
in the fibre.
[0039] The batt-forming machine comprises a cleaning grid 50, disposed in a position suited
to intercepting the fibred processed by the opening wheel 40.
[0040] For example, in the embodiment shown, for the right-hand unit, the opening wheel
40 turns in an anti-clockwise direction and the grid 50 extends, at least partially,
to the left of the opening wheel 40, to intercept the fibre processed by the same.
[0041] The grid 50 presents a processing wall provided with at least one evacuation opening
52 and distanced from the opening wheel 40 so as to make a gap 54, whose passage section
preferentially tends to widen towards the direction of rotation of the opening wheel.
[0042] Preferably, the evacuation openings 52 present an adjustable extension, according
to the type of fibre being processed and in particular according to the desired degree
of cleaning.
[0043] During processing, the grid wall 60 facing the opening wheel 40 intercepts the fibre
drawn without accumulation by the opening wheel 40 in the gap 54. The fibre therefore
undergoes further beating and the residues, above all husks, separate from the fibre,
falling therein, from where they are evacuated by means of aspiration.
[0044] According to a further embodiment, the batt-forming machine comprises a chute 70,
having a prevalent extension along a direction parallel to the axes of rotation Z,
W.
[0045] The chute 70 presents an upper surface 72, forming a gap with the opening wheel 40,
such as to extend the gap 54 formed by the grid with the opening wheel 40.
[0046] In particular, the upper surface 72 extends in the same direction of rotation of
the opening wheel, so that the fibre processed by the grid is driven down-line of
the opening wheel.
[0047] In particular, the upper surface 72 presents an extension beyond the second axis
W, in the fibre movement direction to the outlet from the grid 50.
[0048] Additionally, the batt-forming machine 10 comprises a driving roller 80, disposed
down-line of the opening wheel 40 with respect to the fibre flow, and in particular
disposed at the end of the chute 70, so that the fibre processed by the grid 50 falls
on the driving roller 80.
[0049] In particular, the machine comprises a transit pipe 73, between the opening wheel
40 and the driving roller 80, delimited by containment walls.
[0050] The transit pipe 73 is defined by an area immediately down-line from the feeding
wheels 20, 22, as far as an area immediately up-line of the driving roller 80, and
extends completely between an upper height, defined by said area immediately down-line
of the feeding wheels, and a lower height, defined by said area immediately up-line
of the driving roller 80.
[0051] Preferably, the pipe 73 does not present a "serpentine" course with subsequent stretches
that occupy heights even greater than that of the area immediately down-line of the
feeding wheels, to reach the devices for further processing in a position distant
from the opening wheel.
[0052] The rotation speed of the driving roller 80 is such to avoid the accumulation of
fibre in the area immediately up-line thereof, i.e. on the bottom of the pipe 73.
[0053] The containment walls of the transit pipe 73 comprise a strike wall 73a facing the
opening wheel 40 and/or the chute 70, distant therefrom to allow the fibre coming
out of the chute, driven by the protruding elements 44, to beat against it, and then
fall on the driving roller 80.
[0054] The driving roller 80 turns around a third axis of rotation Y, parallel or otherwise
to the other rotation axes W, Z.
[0055] The driving roller 80 is superficially covered, for example by a stiff saw-tooth
covering to engage the fibre and draw it down-line.
[0056] Additionally, the batt-forming machine comprises an opening roller 90, disposed down-line
of the driving roller 80, turning around a fourth axis of rotation K, parallel to
the axes W and Z.
[0057] The driving roller 80 and the opening roller 90 are preferably rotating in the same
direction. According to certain embodiments, these are counter-rotating.
[0058] Preferably, the cover of the opening roller 90 is fitted with a stiff covering, for
example, with saw-teeth 91.
[0059] According to one variant; the cover of the opening roller 90 comprises a plurality
of spikes 92, protruding from the external surface, able to penetrate into the wads
of fibre and tear open the flocks thereof (figure 4, for illustration requirements,
shows the roller 90 with both the covering and the spikes).
[0060] In other words, the teeth 91 and/or the spike 92 have a flock tearing action that
reduces the compactness of the fibre, better preparing it for the subsequent cleaning
processes.
[0061] Additionally, the processing area of the batt-forming machine 10 comprises an outlet
opening 100, disposed down-line of the cleaning roller 90, from which the open fibre
is aspired, in communication with the outlet pipe 14 of the machine 10.
[0062] On the external surface of the cleaning roller 90, a work portion can be identified,
between the area close to the conveyor roller 80, i.e. where the fibres pass from
the conveyor 80 to cleaning 90 rollers, and the outlet opening 100.
[0063] Preferably, the batt-forming machine 10 comprises at least one channelling flange
110, suited to pushing the fibre transported by the opening roller 90 towards the
teeth 91, to improve the opening efficiency thereof.
[0064] Said channelling flange 110 is disposed around the opening roller 90, for example
creating a fibre passage section radially decreasing in the direction of roller rotation,
sufficiently close to the surface thereof to create a gap into which the fibre is
channelled.
[0065] Preferably, the flange 110 cooperates also with the driving roller 80, to prevent
the cleaning roller 90 from tearing flocks that are too large.
[0066] Preferably, additionally, the batt-forming machine 10 comprises at least one composite
unit 121 comprising auxiliary devices such as an aspiration opening, a blade, a baffle,
variably combined between them in relation to number and type, according to the processing
requirements of the fibre or fibres being processed.
[0067] Said composite unit 121 is arranged along the work portion of the surface of the
opening roller 90.
[0068] In a preferred embodiment, the composite unit 121 is contained in a box 121a that
can be detached or tilted from the machine cover.
[0069] For example, according to a preferred embodiment, the box 121a can be tilted towards
the exterior of the machine, performing a rotation that moves the cleaning roller
90 away, so as to make said roller accessible to maintenance technicians.
[0070] In particular, the box 121 a is hinged along a box axis C, disposed at a lower height
than the rotation axis K of the cleaning roller 90. In accordance with a further variant,
the box axis C is disposed at a lower height of any generator of the cleaning roller
90.
[0071] Advantageously, such configurations allow easy access to the cleaning roller and
the composite units for maintenance thereof.
[0072] According to a preferred embodiment, the batt-forming machine 10 comprises at least
two silos 16 facing the direction of the axis of pipe 12 and in the direction of fibre
movement in said pipe 12.
[0073] Each silo 16 feeds a respective processing area, whereas the outlet openings 100
of said processing areas convey the processed fibre into the same joining pipe 120,
connected to the outlet pipe 14 of the machine 10.
[0074] In a preferred embodiment of a batt-forming line, two batt-forming machines 10 are
fed by the same inlet pipe 12 and the two outlet pipes 14 convey the fibre to the
same fan 130, from which a further inlet pipe 12, leads to feed two further machines
10'.
[0075] According to one aspect, the batt-forming machine 10 is devoid of the grid 50 (figures
6 and 7).
[0076] According to a further aspect, the machine 10 comprises, in the processing area of
the opening roller 90, a single composite unit 121 (figure 5), comprising a single
aspiration opening and a single blade.
[0077] According to a further aspect, the machine 10 is devoid, in the processing area of
the opening roller 90, of composite units 121 (figure 6).
[0078] It should also be noted that these variants, in any case, present a box 121a that
can be tilted for maintenance.
[0079] In a still further variant, the batt-forming machine 10 comprises a plurality of
silos 16, each one independently fed by its own inlet pipe 12, 12', separated from
the other (figure 7). Said variant makes it possible to feed the batt-forming machine
with different types of fibre.
[0080] According to a still further variant, the processing area fed by a silo is equipped
differently to the processing area fed by another silo (figure 7) and each silo is
coupled with a respective fan.
[0081] For example, the processing area of the first silo 16 includes a grid 50 and two
composite units 121 in the work stretch of the opening roller 90, whereas the processing
area of the second silo 16' does not include the grid 50 and does not include any
composite unit 121 in the work stretch of the opening roller 90'.
[0082] Said variants with diversified equipment are particularly advantageous if one intends
to obtain a mixture of natural (dirtier) fibres and synthetic (substantially clean)
fibres of between natural fibres of different types or of synthetic fibres of different
types.
[0083] In such cases, the turning speed of the driving roller 80 is adjusted according to
requirements, for example being different for each channel.
[0084] The batt-forming machine according to the present invention overcomes the drawbacks
mentioned with regard to the state of the art and in particular with reference to
the coupling between a mixer and a porcupine in a conventional batt-forming line.
[0085] In actual fact, the fibre, clean and in any case partially opened by the cleaning
roller passes, without undergoing undesired compacting, to the transport roller -
opening roller pair, which can process the fibre in more favourable conditions.
[0086] In conventional lines, conversely, the passage into long and twisted joining pipes
between different machines creates partial re-compacting of the fibre, in part frustrating
the processing performed previously.
[0087] Furthermore, advantageously the adjustable grid makes it possible to perform more
or less aggressive processing on the fibre, freeing it of the undesired residues and
impurities according to the type of fibre.
[0088] According to a still further advantageous aspect, the batt-forming line allows very
extreme mixing, even when large volumes of fibre are being processed.
[0089] For example, a stretch of a batt-forming line envisages a pipe feeding two machines
of the kind described above, for a total of four silos.
[0090] For large-scale production, for example at 1,200 Kg/hour (one thousand and two hundred),
each processing unit actually processes 300 Kg of fibre/hour, for the embodiments
disclosed hereabove, which is then mixed together.
[0091] The possibility of processing large quantities of fibre for each unit enormously
favours the efficiency of processing, by obtaining smaller flocks, which facilitate
mixing, they present less stressed, cleaner fibres.
[0092] Furthermore, advantageously, access to the internal organs of the machine is facilitated,
in order to perform maintenance activities in a quick and simple manner.
[0093] According to a still further advantageous aspect, the box with the composite units
can be replaced, making it possible to build machines suited to different fibres or
mixtures of fibres, according to requirements, in a modular manner.
[0094] Obviously a man skilled in the art could make modifications to the machine described
above.
[0095] According to a further embodiment variant, the batt-forming machine 10, having two
neighbouring silos 16, comprises a pair of opening wheels 40, disposed down-line of
the respective feeding wheels 20, 22, rotating in the same direction of rotation (figure
8) and a conveyor roller 80 powered by both opening wheels 40.
[0096] Preferably the conveyor roller has fixed axes of rotation and is provided on the
surface with protruding elements, for example spikes, for engaging and drawing the
fibres.
[0097] Down-line of the conveyor roller an opening cylinder 90 is disposed.
[0098] Specifically, down-line of the first opening wheel 40 a first converging pipe is
disposed and down-line of the other opening wheel 40 the other converging pipe 40b
is disposed. The two converging pipes 40a, 40b develop along incidental axes, directed
towards the conveyor roller 80.
[0099] Preferably the converging pipes 40a, 40b are asymmetrical; moreover, preferably the
section of the converging pipes for the passage of the fibre increases in the direction
of movement of the fibre.
[0100] According to one embodiment, the conveyor roller 80 and the opening cylinder 90 have
different directions of rotation.
[0101] Furthermore, preferably the stretch of the output pipe 14, immediately drown-line
of the opening cylinder 90, is arranged at a tangent to said cylinder 90, for example
horizontally. Preferably, moreover, the passage section of the outlet pipe 14, at
least for an initial stretch, reduces from the opening cylinder 90 in the direction
of fibre movement.
[0102] Preferably, moreover, the speeds of rotation of the feeding wheels 20, 22 are independently
adjustable for each pair, for example to facilitate mixing in the case of feeding
the machine 10 with different fibres, by means of separate feeding pipes.
[0103] Preferably, furthermore, the conveyor roller 80, which also performs fibre cleaning
tasks, is paired to a cleaning set 80a, for example formed by a knife with aspiration
opening, for example with adjustable opening flaps and, preferably, followed by at
least one fixed carding element 80b.
[0104] Preferably, furthermore, the opening cylinder 90, is coupled to two cleaning sets
90a, for example formed by a knife with aspiration opening and, for example adjustable
flaps (figure 8) or to a single cleaning set 90a (figure 9) preferably, followed by
at least one fixed carding element 90b.
[0105] For large-scale productions, for example at 1,200 Kg/hour, for the variants described
here (figures 8 to 10), each processing unit actually processes 600 Kg of fibre/hour,
which is then mixed together.
[0106] A batt-forming line comprises a machine set 200, comprising at least two batt-forming
machines 10 coupled as described previously (figure 11).
[0107] The machine set 200 comprises the feeding pipe 12 connected to both machines 10 so
as to feed them together. Each machine 10 comprises the outlet pipe 14; the two outlet
pipes 14 feed the fibre to a further machine 300, for example provided with a fan
for aspiration.
[0108] According to a further embodiment, a batt-forming line comprises two machine sets
200, disposed in series, one down-line of the other, alternating with a machine 300
for aspiration.
[0109] In other words, the batt-forming lines according to the invention present a modular
configuration that envisages a series of machine sets 200, the number of which is
chosen according to the average quantity estimable for the impurities to be eliminated
from the fibre being processed. Generally, the impurities increase with the number
of modules.
[0110] Such variants are also within the scope of the protection of this invention as defined
by the following claims.
1. Batt-forming machine (10) of a batt-forming line (1) of a system for flock fibre treatment,
comprising:
- at least one inlet pipe (12) for feeding the fibre to be processed;
- at least two silos (16), operatively connected to the input pipe (12) for the accumulation
of the fibre to be processed;
- a processing area, down-line from each silo, comprising:
a) at least one pair of feeding wheels (20,22), placed on the bottom of the silo (16),
rotating and counter-rotating, to feed parts of the fibre down-line;
b) a rotating opening wheel (40), disposed down-line of the feeding wheels (20,22),
comprising a plurality of elements (44) protruding from the opening wheel (40) and
suited, by rotating, to intercepting the fibre fed by the feeding wheels (20,22);
c) a converging pipe (40a,40b), down-line of the opening wheel;
- the machine being characterised by: a rotating conveyor roller (80), towards which the converging pipes (40a, 40b) converge,
provided on the surface with protruding elements to draw the fibre into rotation;
- a rotating opening roller (90), disposed down-line of the conveyor roller (80) and
in the vicinity of the same so as to pick up at least part of the fibre transported
by the conveyor roller (80);
- a single outlet pipe (14), fed by the opening cylinder (90), for feeding the processed
fibre towards subsequent processing.
2. The machine according to claim 1, wherein the converging pipes (40a, 40b) develop
along incidental axes.
3. The machine according to claim 1 or 2, wherein the section of the fibre passage increases
in the fibre movement direction.
4. The machine according to any of the previous claims, wherein the opening wheels (40)
rotate in the same direction.
5. The machine according to any of the previous claims, providing cleaning sets (80a,
90a) comprising at least one knife and aspiration opening, for example adjustable
flaps, disposed in the processing area.
6. The machine according to claim 5, wherein the conveyor roller (80) is coupled to at
least one cleaning set (80a).
7. The machine according to claim 5 or 6, wherein the opening cylinder (90) is coupled
to at least one cleaning set (90a).
8. The machine according to any of the previous claims, comprising fixed hinging elements
(80b, 90b) disposed in the processing area.
9. The machine according to claim 8, wherein the conveyor roller (80) is coupled to at
least one fixed hinging element (80b), for example down-line of the cleaning set (80a).
10. The machine according to claim 8 or 9, wherein the opening cylinder (9) is coupled
to at least one fixed hinging element (90), for example up-line of the cleaning set
(90b).
11. The machine according to any of the previous claims, wherein the stretch of outlet
pipe (14) immediately down-line of the opening cylinder)90) is disposed at a tangent.
12. The machine according to claim 11, wherein the stretch of outlet pipe (14) immediately
down-line of the opening cylinder (90) is horizontal.
13. Batt-forming line comprising at least one machine, made according to any of the previous
claims.
14. The batt-forming line comprising a machine set (200) comprising:
- at least two machines (10) made according to any of claims 1 to 12, each one provided
with an outlet pipe (14);
- a feeding pipe (12) that feeds the machines (10) together;
- an aspiration machine (300), connected to the outlet pipes (14).
15. The batt-forming line comprising a plurality of machine sets (10) according to claims
1 to 12, in modular succession.
1. Fasermattenbildungsvorrichtung (10) einer Fasermattenbildungsanlage (1) eines Systems
zur Behandlung von Flockfasern umfassend:
- wenigstens ein Einlassrohr (12) zum Zuführen der zu behandelnden Fa-sern,
- wenigstens zwei Silos (16), die mit dem Einlassrohr (12) zur Ansammlung der zu behandelnden
Fasern wirkungsmäßig verbunden sind,
- einen Verarbeitungsabschnitt, der jedem Silo nachgeschaltet ist, umfas-send
a) wenigstens ein Paar von Zuführrädern (20, 22), die am Boden des Si-los (16) drehbar
angeordnet sind und sich gegeneinander drehen, um Teile der Fasern weiter an in Verarbeitungsrichtung
folgende Abschnitte zu leiten,
b) ein drehendes Aufschließungsrad (40), das hinter den Zuführrädern (20, 22) angeordnet
ist und eine Mehrzahl von Elementen (44) umfasst, die von dem Aufschließungsrad (40)
vorstehen und wenn sie sich drehen, dazu geeignet sind, die Zuführung der Fasern abzufangen,
die von den Zuführrädern (20, 22) zugeführt werden,
c) ein konvergierendes Rohr (40a, 40b), das in Verarbeitungsrichtung hinter dem Aufschließungsrad
angeordnet ist,
wobei die Vorrichtung
dadurch gekennzeichnet ist, dass
- eine drehende Transportwalze (80), zu der die konvergierenden Rohre (40a, 40b) hin
zusammenlaufen, und die an der Oberfläche mit vorstehenden Elementen versehen ist,
um die Fasern in Rotation zu versetzen,
- eine drehende Aufschließungswalze (90), die in Verarbeitungsrichtung hinter der
Transportwalze (80) und nahe derselben angeordnet ist, um wenigstens einen Teil der
Fasern, die von der Transportwalze (80) transportiert wird, zu ergreifen,
- ein einziges Auslassrohr (14), das durch den Aufschließungszylinder (90) zum Zuführen
der verarbeiteten Fasern zur nachfolgenden Verarbeitung gespeist wird.
2. Vorrichtung gemäß Anspruch 1, wobei die konvergierenden Rohre (40a, 40b) sich entlang
von Nebenachsen erstrecken.
3. Vorrichtung gemäß Anspruch 1 oder 2, wobei sich der Querschnitt des Faser-durchlasses
in der Faserbewegungsrichtung vergrößert.
4. Vorrichtung gemäß irgend einem der vorangehenden Ansprüche, wobei sich die Aufschließungsräder
(40) in der gleichen Richtung drehen.
5. Vorrichtung gemäß irgend einem der vorangehenden Ansprüche, umfassend Reinigungssätze
(80a, 90a), die wenigstens ein Messer und eine Saugöff-nung, beispielsweise einstellbare
Klappen, die in dem Verarbeitungsabschnitt angeordnet sind, umfassen.
6. Vorrichtung gemäß Anspruch 5, wobei die Transportwalze (80) mit wenigstens einem Reinigungssatz
(80a) verbunden ist.
7. Vorrichtung gemäß Anspruch 5 oder 6, wobei der Aufschließungszylinder (90) mit wenigstens
einem Reinigungssatz (90a) verbunden ist.
8. Vorrichtung gemäß irgend einem der vorangehenden Ansprüche, umfassend stationäre Scharnierelemente
(80b, 90b), die in dem Verarbeitungsabschnitt angeordnet sind.
9. Vorrichtung gemäß Anspruch 8, wobei die Transportwalze (80) mit weni-gstens einem
stationären Scharnierelement (80b), beispielsweise in Verarbeitungsrichtung hinter
dem Reinigungssatz (80a), verbunden ist.
10. Vorrichtung gemäß Anspruch 8 oder 9, wobei der Aufschließungszylinder (90) wenigstens
mit einem stationären Scharnierelement (90b), beispielsweise in Verarbeitungsrichtung
vor dem Reinigungssatz (90a), verbunden ist.
11. Vorrichtung gemäß irgend einem der vorangehenden Ansprüche, wobei der Abschnitt des
Auslassrohres (14), der direkt in Verarbeitungsrichtung hinter dem Aufschließungszylinder
(90) angeordnet ist, an einer Tangente vorgese-hen ist.
12. Vorrichtung gemäß Anspruch 11, wobei der Abschnitt des Auslassrohres (14), der in
Verarbeitungsrichtung unmittelbar hinter dem Aufschließungszylinder (90) angeordnet
ist, horizontal verläuft.
13. Fasermattenbildungsanlage umfassend wenigstens eine Vorrichtung, die gemäß irgend
einem der vorangehenden Ansprüche ausgebildet ist.
14. Fasermattenbildungsanlage umfassend einen Vorrichtungssatz (200) umfas-send
- wenigstens zwei Vorrichtungen (10), die gemäß irgend einem der Ansprü-che 1 bis
12 ausgebildet sind, von denen jede mit einem Auslassrohr (14) versehen ist,
- ein Zuführrohr (12), das die Vorrichtungen (10) zusammen speist,
- eine Saugvorrichtung (300), die mit dem Auslassrohr (14) verbunden ist.
15. Fasermattenbildungsanlage umfassend eine Mehrzahl von Vorrichtungssät-zen (10) gemäß
den Ansprüchen 1 bis 12 in modularer Folge.
1. Machine de formation de nappe (10) d'une chaîne de formation de nappe (1) d'un système
de traitement de fibres de floc, comprenant :
- au moins un conduit d'entrée (12) pour fournir des fibres à traiter ;
- au moins deux silos (16), connectés de manière opérationnelle au conduit d'entrée
(12) pour accumuler les fibres à traiter ;
- une zone de traitement, en aval de chaque silo, qui comprend :
a) au moins une paire de roues d'alimentation (20, 22), placées sur le fond du silo
(16), l'une tournant dans un sens et l'autre dans l'autre sens, pour fournir des parties
de fibres en aval ;
b) une roue d'ouverture tournante (40), disposée en aval des roues d'alimentation
(20, 22), comprenant une pluralité d'éléments (44) qui font saillie à partir de la
roue d'ouverture (40) et adaptés, du fait de la rotation, pour intercepter les fibres
fournies par les roues d'alimentation (20.22) ;
c) un conduit convergent (40a, 40b), situé en aval de la roue d'ouverture ;
la machine étant
caractérisée par :
- un rouleau de convoyeur tournant (80), vers lequel convergent les conduits convergents
(40a, 40b), disposé sur la surface avec des éléments qui font saillie pour entraîner
les fibres en rotation ;
- un rouleau d'ouverture tournant (90), disposé en aval du rouleau de convoyeur (80)
et à proximité de celui-ci de façon à saisir au moins une partie des fibres transportées
par le rouleau de convoyeur (80) ;
- un seul conduit de sortie (14), alimenté par le cylindre d'ouverture (90), pour
fournir les fibres traitées vers un traitement suivant.
2. Machine selon la revendication 1, dans lequel les conduits conver-gents (40a, 40b)
se développent le long d'axes qui se coupent.
3. Machine selon la revendication 1 ou la revendication 2, dans laquelle la section du
passage des fibres augmente dans la direction du déplacement des fibres.
4. Machine selon l'une quelconque des revendications précédentes, dans laquelle les roues
d'ouverture (40) tournent dans le même sens.
5. Machine selon l'une quelconque des revendications précédentes, fournissant des ensembles
de nettoyage (80a, 90a) qui comprennent au moins un couteau et une ouverture d'aspiration,
par exemple des trappes réglables, disposés dans la zone de traitement.
6. Machine selon la revendication 5, dans laquelle le rouleau de convoyeur (80) est couplé
à au moins un ensemble de nettoyage (80a).
7. Machine selon la revendication 5 ou la revendication 5, dans laquelle le cylindre
d'ouverture (90) est couplé à au moins un ensemble de nettoyage (90a).
8. Machine selon l'une quelconque des revendications précédentes, comprenant des éléments
d'articulation fixes (80b, 90b) disposés dans la zone de traitement.
9. Machine selon la revendication 8, dans laquelle le rouleau de convoyeur (80) est couplé
à au moins un élément d'articulation fixe (80b), par exemple en aval de l'ensemble
de nettoyage (80a).
10. Machine selon la revendication 8 ou la revendication 9, dans laquelle le cylindre
d'ouverture (90) est couplé à au moins un élément d'articulation fixe (90b), par exemple
en amont de l'ensemble de nettoyage (90a).
11. Machine selon l'une quelconque des revendications précédentes, dans laquelle l'allongement
du conduit de sortie (14) immédiatement en aval du cylindre d'ouverture (90) est disposé
selon une tangente.
12. Machine selon la revendication 11, dans laquelle l'allongement du conduit de sortie
(14) immédiatement en aval du cylindre d'ouverture (90) est horizontal.
13. Chaîne de formation de nappe comprenant au moins une machine réalisée selon l'une
quelconque des revendications précédentes.
14. Chaîne de formation de nappe comprenant un ensemble de machines (200) qui comprend
:
- au moins deux machines (10) réalisées selon l'une quelconque des revendications
1 à 12, chacune d'elles étant dotée d'un conduit de sortie (14) ;
- un conduit d'alimentation (12) qui alimente les machines (10) ensemble ;
- une machine d'aspiration (300), connectée aux conduits de sortie (14).
15. Chaîne de formation de nappe comprenant une pluralité d'ensembles de machines (10)
selon l'une quelconque des revendica-tions 1 à 12, disposées en une succession modulaire.