TECHNICAL FIELD
[0001] The present invention relates to a strip-pack apparatus that manufactures a strip
pack where plural products are affixed to a strip and displayed in a hanging state,
and the present invention belongs to the technical field of strip packs.
BACKGROUND ART
[0002] Conventionally, displays called strip packs have been known where plural products
having contents such as a snack food enclosed in packaging bags are affixed to and
hung from a strip. These strip packs have the advantage that they can economize display
space and diversify design and they heighten a customer's desire to buy. Additionally,
as strip-pack apparatus that manufactures such strip packs, there are the strip-pack
apparatus disclosed in patent document 1 and patent document 2, for example.
Patent Document 1: JP-A No. 2004-182302
Patent Document 2: U.S. Patent No. 3,864,895
DISCLOSURE OF THE INVENTION
<Technical Problem>
[0003] The strip-pack apparatus is disposed directly under or in the vicinity of a transverse
sealing apparatus in a bag making and packaging machine and has a configuration that
moves products that have been supplied from the bag making and packaging machine to
an affixing position where the products are affixed to the strip. For that reason,
when the products that have been supplied are to be cartoned as they are without being
formed into a strip pack, it is necessary to remove this strip-pack apparatus and
install a cartoning machine instead of the strip-pack apparatus. Consequently, there
has been the problem that the strip-pack apparatus cannot easily accommodate a change
in production planning that calls for a layout change of apparatus elements.
[0004] It is an object of the present invention to provide a strip-pack apparatus that has
excellent versatility and is capable of appropriately switching between forming and
not forming products that have been supplied from an upstream side into a strip pack
depending on circumstances on a downstream side while ensuring the manufacture of
a strip pack where plural products are affixed to a strip.
<Solution to the Problem>
[0005] In order to achieve this object, the present invention is configured as follows.
[0006] A strip-pack apparatus according to a first aspect of the present invention comprises
moving means, affixing means, operating mode selecting means and control means, is
positioned between an upstream mechanism and a downstream mechanism that process products,
and manufactures a strip pack where a plurality of the products are affixed to a strip.
The moving means selectively moves the products that have been supplied from the upstream
mechanism to an affixing position or the downstream mechanism. The affixing means
affixes the products to a strip in the affixing position. The operating mode selecting
means receives a selection between a strip pack manufacturing mode and a product passing
mode. The strip pack manufacturing mode is an operating mode that causes the moving
means to move the products to the affixing position. The product passing mode is an
operating mode that causes the moving means to move the products to the downstream
mechanism without moving the products to the affixing position. The control means
controls the driving of the moving means and the affixing means depending on the operating
mode that has been selected via the operating mode selecting means.
[0007] A strip-pack apparatus according to a second aspect of the present invention is the
strip-pack apparatus according to the first aspect of the present invention, wherein
the moving means includes conveying means and gripping means. The conveying means
conveys the products that have been supplied from the upstream mechanism to a gripping
position. The gripping means grips the products in the gripping position and moves
the products to the affixing position.
[0008] A strip-pack apparatus according to a third aspect of the present invention is the
strip-pack apparatus according to the first aspect of the present invention, wherein
the moving means includes first conveying means, second conveying means and third
conveying means. The first conveying means conveys the products that have been supplied
from the upstream mechanism to a branching position. The second conveying means conveys
the products from the branching position toward the affixing position. The third conveying
means conveys the products from the branching position toward the downstream mechanism.
The control means controls the driving of the first conveying means, the second conveying
means and the third conveying means such that, when the product passing mode has been
selected via the operating mode selecting means, the products are moved to the downstream
mechanism without being moved to the affixing position.
[0009] It will be noted that the first conveying means and the second conveying means may
be integrally formed, the first conveying means and the third conveying means may
be integrally formed, the second conveying means and the third conveying means may
be integrally formed, or the first conveying means, the second conveying means and
the third conveying means may be integrally formed.
[0010] A strip-pack apparatus according to a fourth aspect of the present invention is the
strip-pack apparatus according to the third aspect of the present invention, wherein
the third conveying means is detachably or movably connected to the first conveying
means in the branching position.
[0011] A strip-pack apparatus according to a fifth aspect of the present invention is the
strip-pack apparatus according to the first aspect of the present invention, wherein
the moving means includes conveying means that is capable of conveying the products
selectively in a first direction or a second direction different from the first direction.
The control means causes the conveying means to move the products toward the affixing
position by driving the conveying means in the first direction when the strip pack
manufacturing mode has been selected via the operating mode selecting means and causes
the conveying means to move the products toward the downstream mechanism by driving
the conveying means in the second direction when the product passing mode has been
selected via the operating mode selecting means.
<Advantageous Effects of the Invention>
[0012] According to the first aspect of the present invention, when the strip pack manufacturing
mode is selected by the operating mode selecting means, the driving of the moving
means and the affixing means is controlled by the control means, and the primary operation
of the strip-pack apparatus, that is, operation to affix the plural products to the
strip, is executed. In other words, the products that have been supplied from upstream
are moved to the affixing position and the strip pack is efficiently manufactured.
On the other hand, when the product passing mode is selected, the products that have
been supplied from upstream are delivered as they are downstream, where, for example,
a cartoning machine is disposed, without being moved to the affixing position. In
this manner, there is realized a strip-pack apparatus that has excellent versatility
and is capable of appropriately switching between forming and not forming a strip
pack depending on circumstances on the downstream side.
[0013] According to the fourth aspect of the present invention, the third conveying means
is detachably or movably disposed consecutively with the downstream side of the first
conveying means. Consequently, when the product passing mode has been selected, the
third conveying means is kept in the state where it is disposed consecutively with
the downstream side of the first conveying means, so that the products that have been
supplied from the upstream mechanism are capable of being carried reliably to the
downstream mechanism without being supplied to the affixing position. Additionally,
when the strip pack manufacturing mode is selected as the operating mode, it suffices
to remove this auxiliary conveying means.
[0014] According to the fifth aspect of the present invention, the conveyance direction
of the conveying means included in the moving means is capable of being switched between
a direction (first direction) where the conveying means is capable of supplying the
products toward the affixing position and a direction (second direction) where the
conveying means is capable of carrying the products toward the downstream mechanism
without supplying the products toward the affixing position. Consequently, by controlling
the conveyance direction of the conveying means, it becomes possible to easily switch
between the strip pack manufacturing mode and the product passing mode.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015]
FIG. 1 is a block diagram of a manufacturing system according to a first embodiment
of the present invention.
FIG. 2 is a side view of a strip-pack apparatus.
FIG. 3(a) is a front view of a strip pack and FIG. 3(b) is a side view of the strip
pack.
FIG. 4 is a block diagram of a control system.
FIG. 5 is a block diagram of a manufacturing system according to a second embodiment
of the present invention.
FIG. 6 is a side view of a strip-pack apparatus.
FIG. 7 is a block diagram of a control system.
EXPLANATION OF THE REFERENCE SIGNS
[0016]
- 1, 100
- Strip-pack apparatus
- 3
- Supply Conveyor (Moving Means)
- 3c
- Auxiliary Conveyor (Moving Means)
- 4
- Introduction Conveyor (Moving Means)
- 5
- Drop Conveyor (Moving Means)
- 8
- Gripping Unit (Gripping Means)
- 9
- Affixing Unit (Affixing Means)
- 20
- Control Unit (Control Means)
- 30
- Operating Mode Selection Switch (Operation Mode Selecting Means)
- C
- Cartoning Machine (Downstream Mechanism)
- SP
- Strip Pack
- T
- Tape (Strip)
- X
- Bag (Product)
BEST MODES FOR CARRYING OUT THE INVENTION
[0017] Below, embodiments of the present invention will be described.
[0018] The system shown in FIG. 1 represents an overview of a manufacturing system A1 according
to a first embodiment of the present invention. In this system A1, a combination weighing
device W, a bag making and packaging machine P, a strip-pack apparatus 1 and a cartoning
machine C are disposed in order from an upstream side. As described in detail below,
the strip-pack apparatus 1 is configured to manufacture a strip pack SP or to allow
products X to pass therethrough as they are without manufacturing the strip pack SP
depending on apparatus disposed on a downstream side.
[0019] The combination weighing device W respectively weighs the weights of goods that have
been placed in plural measuring hoppers, performs combination calculation on the basis
of these weighing values, selects a combination of weighing values that become the
closest weight to a target value within a predetermined weight range, and discharges
the goods from only the measuring hoppers corresponding to that selected combination
to thereby obtain a set of goods with the target weight. Further, the bag making and
packaging machine P forms a soft packaging material such as a plastic film into a
tubular form, places the goods therein and simultaneously heat-seals the top and bottom
of that tubular object to thereby package, as contents, the goods that are discharged
from the combination weighing device W. Additionally, the cartoning machine C packs
the products X that have been manufactured by the combination weighing device W and
the bag making and packaging machine P into cardboard boxes, and an apparatus with
an appropriate configuration is applicable.
[0020] A strip-pack apparatus shown in FIG. 2 is an example of the strip-pack apparatus
1. This strip-pack apparatus 1 affixes the plural products X to a tape to manufacture
the strip pack SP and includes a body unit 2, a supply conveyor 3 to which the products
X are supplied from an upstream apparatus, an introduction conveyor 4 that introduces,
to the inside of the apparatus 1, the products X that have been supplied by this supply
conveyor 3, a drop conveyor 5 that is positioned on a terminal end portion of this
introduction conveyor 4, a discharge conveyor 6 that discharges, to a downstream apparatus,
the strip pack SP that has been manufactured by the apparatus 1, a brush unit 7 for
smoothing out wrinkles in end portions of the products X that have been introduced
to the inside of the apparatus 1, a gripping unit 8 for gripping the end portions
of the products X, an affixing unit 9 for affixing the products X at the end portions
to the tape, and a tape feeding unit 10 for feeding the tape synchronously with the
affixing operation by the affixing unit 9. Here, a roll 11 of the tape is disposed
in the upper portion of the body unit 2. It will be noted that the apparatus 1 has
a configuration that is independent from upstream apparatus and downstream apparatus
and has high versatility.
[0021] Further, a metal detector 3 a is supported on the body unit 2 and is annexed to the
supply conveyor 3 so as to surround a conveyance path of the products X. This metal
detector 3a detects metal foreign bodies that are mixed inside packaging bags Y of
the products X when the products X pass through a magnetic field. Additionally, an
air nozzle 3b for spraying air and removing the products X being conveyed from the
conveyance path is annexed to one side in the vicinity of the downstream end of the
supply conveyor 3. Moreover, an auxiliary conveyor 3c that serves as auxiliary conveying
means that conveys the products X in the direction of arrow D1 is configured to extend
the downstream end portion of the supply conveyor 3 and is detachably disposed consecutively
with the body unit 2. And a receiving conveyor that supplies the products X to the
cartoning machine C is installed consecutively with the downstream side of this auxiliary
conveyor 3c. It will be noted that, in the example in the drawing, the receiving conveyor
configures part of this cartoning machine C.
[0022] As shown in FIG 3, the strip pack SP that is manufactured by the strip-pack apparatus
1 is one where a plurality (in the example in the drawing, three) of the products
X, in which a snack food is enclosed as contents in the packaging bags Y made of a
plastic film, are affixed in an aligned state to an elongate tape T at seal portions
Z on the top sides of the products X. A punch hole t1 for fastening and displaying
the strip pack SP in a hanging state is formed in one end of the tape T.
[0023] Next, a control system of this strip-pack apparatus 1 will be described.
[0024] As shown in FIG. 4, the strip-pack apparatus 1 is equipped with a control unit 20
that controls the entire apparatus, and this control unit 20 outputs control signals
to the supply conveyor 3, the auxiliary conveyor 3c, the introduction conveyor 4,
the drop conveyor 5, the discharge conveyor 6, the brush unit 7, the gripping unit
8, the affixing unit 9 and the tape feeding unit 10. Further, this control unit 20
is connected to an operating mode selection switch 30 and controls the driving of
each of the conveyors 3 to 6 and 3c and each of the units 7 to 10 such that they operate
in the operating mode that has been selected by the operating mode selection switch
30. Included in the operating modes are a strip pack manufacturing mode that serves
the function of manufacturing the strip pack, which is the primary function of the
strip-pack apparatus 1, and a product passing mode that allows the products X that
have been supplied from the bag making and packaging machine P on the upstream side
to pass through as they are to the cartoning machine C on the downstream side without
conveying those products X to a gripping position.
[0025] Further, the control unit 20 receives a detection signal from the metal detector
3a and determines whether the products X are normal products or abnormal products
on the basis of this detection signal. Additionally, when one of the products X is
an abnormal product, the control unit 20 actuates and controls the air nozzle 3b such
that the air nozzle 3b removes that product X to the side of the conveyance path.
[0026] Next, an example of the operation of the strip-pack apparatus 1 will be described.
[0027] First, when the manufactured products X are to be formed into the strip pack SP,
an operator flips up the upstream end side of the auxiliary conveyor 3c or removes
the entire auxiliary conveyor 3c from the body unit 2 and selects the strip pack manufacturing
mode with the operating mode selection switch 30. Then, as shown in FIG. 1 and FIG.
2, the products X that have been manufactured by the combination weighing device W
and the bag making and packaging machine P on the upstream side and have been carried
into the strip-pack apparatus 1 undergo inspection by the metal detector 3 a while
being conveyed in the direction of arrow D1 by the supply conveyor 3 above. When it
is determined that the products X are normal products, the products X are conveyed
as they are in the direction of arrow D1, and when it is determined that the products
X are abnormal products, the air nozzle 3b is actuated and the products X are removed
to the side of the conveyance path.
[0028] Next, wrinkles in the end portions, that is, the seal portions, of the products X
that have been determined to be normal products, have dropped from the supply conveyor
3 onto the introduction conveyor 4 below and have been conveyed to the gripping position
in the direction of arrow D2 by the introduction conveyor 4 and the drop conveyor
5 are smoothed out by the brush unit 7, and the products X are moved diagonally downward
of the front side in the conveyance direction D2 in a state where the end portions
are gripped by the gripping unit 8. At this time, the drop conveyor 5 slants such
that its front side in the conveyance direction D2 becomes lower.
[0029] Then, the plural products X are affixed by the affixing unit 9 in an affixing position
to the tape T that has been let out by the tape feeding unit 10 from the tape roll
11 supported on the body unit 2 and fed to the affixing position, whereby the strip
pack SP is manufactured. The strip pack SP that has been manufactured is delivered
to the discharge conveyor 6 while sliding down on a slanted receiver 13 and is conveyed
by this conveyor 6 in the direction of arrow D3.
[0030] On the other hand, when the manufactured products X are to be cartoned, the operator
selects the product passing mode with the operating mode selection switch 30 and attaches
the auxiliary conveyor 3c to the body unit 2. Thus, the products X that are conveyed
by the supply conveyor 3 are delivered as they are to the auxiliary conveyor 3c and
are conveyed in the downstream direction. Additionally, the control unit 20 performs
control so as to stop the driving of all of the conveyors 4 to 6 and the units 7 to
10. Consequently, when the products X that have been supplied from the upstream side
are determined to be normal products by the metal detector 3a, the products X are
conveyed in the direction of arrow D1 and are delivered as they are, without being
formed into the strip pack SP, from the supply conveyor 3 and the auxiliary conveyor
3c to the cartoning machine C on the downstream side. Additionally, when the products
X are determined to be abnormal products, the air nozzle 3b is actuated and the products
X are removed to the side of the conveyance path.
[0031] Further, when inspection by the metal detector 3 a is stopped and the air nozzle
3b is not actuated, the strip-pack apparatus 1 can be made to function as simple conveying
means that delivers the products X that have been supplied from the bag making and
packaging machine P on the upstream side to the cartoning machine C on the downstream
side.
[0032] That is, the course of the products X in the strip-pack apparatus 1 branches at the
downstream end of the supply conveyor 3. When the strip pack manufacturing mode is
selected, the products X are conveyed by the conveyors 4 and 5 toward the affixing
position where the affixing operation by the affixing unit 9 is performed, and when
the product passing mode is selected, the products X are conveyed by the conveyor
3c toward the cartoning machine C.
[0033] Next, a second embodiment will be described. It will be noted that, in order to simplify
description, the same reference signs will be added to components that are the same
as or similar to components that have been mentioned above, and description of those
same or similar components will be omitted.
[0034] A manufacturing system shown in FIG. 5 is a manufacturing system A2 according to
the second embodiment of the present invention. In this system A2, the combination
weighing device W, the bag making and packaging machine P, a strip-pack apparatus
100 and the cartoning machine C are disposed in order from an upstream side. The strip-pack
apparatus 100 is, like the strip-pack apparatus 1 in the first embodiment, configured
to be capable of selecting whether or not to manufacture the strip pack SP depending
on apparatus disposed on a downstream side.
[0035] As shown in FIG. 6, in the strip-pack apparatus 100, the metal detector 3a and the
air nozzle 3b are annexed to the supply conveyor 3, but extension by the auxiliary
conveyor 3c is omitted. Further, the introduction conveyor 4 has a structure where
a belt is wrapped around rollers that are capable of forward and reverse rotation,
and the conveyance direction thereof is configured to be switchable by the control
unit 20. That is, the introduction conveyor 4 can convey the products X in the direction
of arrow D2 and in the opposite direction of arrow D4. The cartoning machine C is
disposed consecutively with the end portion of this introduction conveyor 4 on the
opposite side of the drop conveyor 5. It will be noted that other configurations are
the same as the configurations of the strip-pack apparatus 1 in the first embodiment,
so detailed description thereof will be omitted.
[0036] As shown in FIG. 7, the strip-pack apparatus 100 is equipped with the control unit
20 that controls the entire apparatus, and this control unit 20 outputs control signals
to the supply conveyor 3, the introduction conveyor 4, the drop conveyor 5, the discharge
conveyor 6, the brush unit 7, the gripping unit 8, the affixing unit 9 and the tape
feeding unit 10. Further, this control unit 20 is connected to the operating mode
selection switch 30 and controls the driving of each of the conveyors 3 to 6 and each
of the units 7 to 10 such that they operate in the operating mode that has been selected
by the operating mode selection switch 30. The operating modes are as has been mentioned
above.
[0037] Further, the control unit 20 receives a detection signal from the metal detector
3a and determines whether the products X are normal products or abnormal products
on the basis of this detection signal. Additionally, when one of the products X is
an abnormal product, the control unit 20 actuates and controls the air nozzle 3b such
that the air nozzle 3b removes that product X to the side of the conveyance path.
[0038] Next, an example of the operation of the strip-pack apparatus 100 will be described.
[0039] First, when the manufactured products X are to be formed into the strip pack SP,
the operator selects the strip pack manufacturing mode with the operating mode selection
switch 30. Then, as shown in FIG. 5 and FIG. 6, the products X that have been manufactured
by the combination weighing device W and the bag making and packaging machine P on
the upstream side and have been carried into the strip-pack apparatus 100 undergo
inspection by the metal detector 3a while being conveyed in the direction of arrow
D1 by the supply conveyor 3 above. When it is determined that the products X are normal
products, the products X are conveyed as they are in the direction of arrow D1, and
when it is determined that the products X are abnormal products, the air nozzle 3b
is actuated and the products X are removed to the side of the conveyance path.
[0040] Next, the products X that have been determined to be normal products and have dropped
from the supply conveyor 3 onto the introduction conveyor 4 are conveyed to the gripping
position in the direction of arrow D2 by the introduction conveyor 4 and the drop
conveyor 5, but the operation hereinafter is the same as the operation in the first
embodiment, so description thereof will be omitted.
[0041] On the other hand, when the manufactured products X are to be cartoned, the operator
selects the product passing mode with the operating mode selection switch 30. In this
case, the control unit 20 stops the driving of all of the conveyors 5 and 6 and the
units 7 to 10 and controls the introduction conveyor 4 such that the introduction
conveyor 4 conveys the products X in the direction of arrow D4. Consequently, when
the products X that have been supplied from the upstream side are determined to be
normal products by the metal detector 3a, the products X are conveyed in the direction
of arrow D1, thereafter drop onto the introduction conveyor 4, and are conveyed by
this introduction conveyor 4 in the direction of arrow D4, so the products X are delivered
as they are, without being formed into the strip pack SP, from the introduction conveyor
4 to the cartoning machine C on the downstream side. Additionally, when the products
X are determined to be abnormal products, the air nozzle 3b is actuated and the products
X are removed to the side of the conveyance path.
[0042] Further, when inspection by the metal detector 3 a is stopped and the air nozzle
3b is not actuated, the strip-pack apparatus 100 can be made to function as simple
conveying means that delivers the products X that have been supplied from the bag
making and packaging machine P on the upstream side to the cartoning machine C on
the downstream side.
[0043] Because the strip-pack apparatus is configured as described above, first, when the
strip pack manufacturing mode is selected by the operating mode selection switch 30
in order to form the manufactured products X into the strip pack SP, the driving of
the supply conveyor 3, the gripping unit 8 and the affixing unit 9 is controlled by
the control unit 20, and the primary operation of the strip-pack apparatus 1 and 100
is executed. As a result, the products X that have been supplied from the upstream
side are conveyed to the gripping position and the strip pack SP is efficiently manufactured.
On the other hand, when the product passing mode is selected in order to carton the
manufactured products X, the products X that have been supplied from the upstream
side are conveyed as they are to the downstream side without being conveyed to the
gripping position, so the strip-pack apparatus 1 and 100 function as apparatus that
deliver the products X that have been received from the upstream side as they are
to the cartoning machine C. In this manner, there are realized the strip-pack apparatus
1 and 100 that have excellent versatility and are capable of appropriately switching
between forming and not forming the products X that have been supplied from the upstream
side into the strip pack depending on a request on the downstream side.
[0044] In that case, as in the first embodiment, the auxiliary conveyor 3c can be detachably
disposed consecutively with the downstream side of the supply conveyor 3 or can be
given a flip-up configuration. For that reason, when the product passing mode has
been selected as the operating mode, the products X that have been supplied from the
upstream side can be reliably conveyed to the downstream side by the auxiliary conveyor
3c with this configuration without being conveyed to the gripping position. Additionally,
when the strip pack manufacturing mode has been selected as the operating mode, it
suffices to remove or flip up this auxiliary conveyor 3c.
[0045] In the second embodiment, the introduction conveyor 4 that is capable of being driven
in a direction where it is capable of supplying the products X to the gripping position
or a direction where it is capable of carrying the products X to the downstream side
without supplying the products X to the gripping position is disposed on the downstream
side and below the supply conveyor 3. Therefore, by controlling this introduction
conveyor 4, it becomes possible to easily switch between when the strip pack manufacturing
mode has been selected and when the product passing mode has been selected as the
operating mode.
[0046] It will be noted that the present invention is not limited to the preceding embodiments
that have been specifically described and various changes to the described embodiments
may be made within the spirits of the present invention.
[0047] For example, in the first embodiment, the auxiliary conveyor 3c is capable of being
disposed between the supply conveyor 3 and the cartoning machine C, but instead of
this, the cartoning machine C may also be configured so as to be movable such that
it moves close to the downstream end portion of the supply conveyor 3.
INDUSTRIAL APPLICABILITY
[0048] As described above, according to the present invention, there is realized a strip-pack
apparatus that has excellent versatility and is capable of appropriately switching
between forming and not forming products into a strip pack depending on circumstances
on a downstream side while ensuring the efficient manufacture of a strip pack where
plural products are affixed to a strip. That is, the present invention is widely suited
to the technical field of strip packs.