JP2010254369A - Manufacturing device of laminate package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the trouble and problem, which a plate belt has, such as a problem of adhesion of an exothermic composition to a portion other than the plate belt and a structural problem concerning the thickness of a plate of the plate belt and the like, and to laminate the exothermic composition on an extensible, contractible and soft packaging material accurately in a uniform shape. <P>SOLUTION: The manufacturing device of the laminate package includes a plate drum 10 having a pulling-out opening 13 for lamination mounted on a rotating tubular plate drum body 12, a feed nozzle 20 mounted in the inside of the plate drum and including a discharge opening 20a feeding the exothermic composition 3 to the plate drum, and a belt-like conveying device 6 running a base material sheet S1 on which the exothermic composition 3 is laminated. The belt-like conveying device is arranged downward of the plate drum. The conveying belt 33 of the belt-like conveying device and the plate drum pinch and hold a part of the base material sheet planarly along the outer circumferential surface of the plate drum body, fill the exothermic composition from the feed nozzle into the pulling-out hole for lamination of the plate drum within the pinched and held range, and laminate the exothermic composition on the base material sheet. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an apparatus for manufacturing a laminated package for packaging an exothermic composition in a laminated form with a pair of sheet-like packaging materials.

  Conventionally, disposable warmers have been used in clothing for the purpose of keeping warm in winter. In order to obtain a heat generation effect associated with an oxidation reaction caused by contact with oxygen in the air, such a disposable body warmer contains a heat generation composition containing iron powder, water, salts, activated carbon, etc. as a main composition in a bag. It consists of a laminated package.

  As an apparatus for producing such a laminated package, a viscous heating composition is extruded and supplied from a material extrusion nozzle to a lamination hole of a cylindrical plate drum (pattern roll), and a substrate sheet is brought into contact with the pattern roll. It is known that the heat generating composition in the form of a hole for laminating is laminated on the base sheet in the form of a film, and further the film material sheet is laminated on the base sheet to cover the heat generating composition. (For example, refer to Patent Document 1).

  Moreover, what combined the plate belt and the belt-shaped conveyance apparatus is also well-known as another manufacturing apparatus of a laminated package (for example, refer patent document 2). That is, the plate belt of the laminated package manufacturing apparatus is composed of an endless belt-like plate body provided with a stacking hole. Further, the belt-like conveyance device is composed of an upstream inclined conveyance path and a downstream horizontal conveyance path. Then, the plate belt is inclined, and the base sheet is inclined and held by the inclined plate belt and the inclined conveying path of the belt-shaped conveying device, and the stacking hole formed in the plate belt is formed. The viscous exothermic composition filled and supplied to is laminated on an inclined base sheet. Further, the laminated packaging body (heating element) is continuously manufactured by laminating the covering material sheet and sealing it to the base material sheet and punching it into a predetermined shape.

Japanese Patent No. 3164882 JP 2007-44100 A

  In the apparatus described in Patent Document 1 (a laminating apparatus including a plate drum and a receiving roll), the material extruding nozzle is provided inside the pattern roll so that the discharge port portion is directed toward the laminating hole. . In order to uniformly laminate the exothermic composition filled in the stacking holes from the discharge port of the material extrusion nozzle into a thin plate shape on the packaging material (base material sheet), the material extrusion nozzle is appropriately provided. It is necessary to grind the exothermic composition with a doctor. The resistance that is generated when the exothermic composition laminated on the base sheet is rubbed off by a doctor tends to stop the base sheet traveling at a predetermined speed.

  However, the base sheet has elasticity and flexibility, and the contact position between the cylindrical plate drum and the circular receiving roll is a line along the rotational center direction of the plate drum and the receiving roll. The contact area is small. That is, since the circular members are in contact with each other, the range in which the base sheet is sandwiched and held is reduced.

  As a result, due to the resistance generated when the exothermic composition laminated on the base sheet is scraped with a doctor, wrinkles occur on the upstream side immediately before the laminated portion of the exothermic composition in the base sheet, The exothermic composition was laminated in a wrinkled state and then stretched, and there was a problem that the shape of the laminated exothermic composition was distorted by such expansion and contraction of the base sheet.

  In addition, the device described in Patent Document 2 (a device combining a plate belt and a belt-like conveyance device) has a poor doctor attachment adjustment or wear of the doctor when the exothermic composition supplied to the plate belt is scraped by the doctor. If the exothermic composition on the plate belt cannot be completely removed due to the above, etc., the exothermic composition adheres to the shaft roll around which the plate belt is wound. There was a problem that caused dirt.

  Further, when stainless steel is used as the material for the plate belt, if the plate belt is thin, the plate belt pitch adjusting drive hole has insufficient strength, so that the life of the plate belt is shortened. On the contrary, when the plate belt is made thicker, the rigidity becomes larger and the shaft roll diameter needs to be increased, so that the apparatus becomes large.

  In order to reduce the rigidity of the thick plate belt, it is possible to attach a rubber sheet or a resin sheet to the stainless steel belt. There is a problem that the adhesion with the sheet is peeled off. In addition, it takes time to manufacture the plate belt, and there are drawbacks such as restrictions on the shape of the plate belt. The manufacture of the plate belt requires a long time and is expensive.

  Therefore, the present invention employs a cylindrical plate drum to prevent trouble that the exothermic composition adheres to portions other than the plate belt, and the plate belt thickness, etc., which the plate belt has. While solving a problem, it makes it a subject to laminate | stack an exothermic composition on a packaging material in the exact and uniform shape.

  An apparatus for producing a laminated package of the present invention is made to solve the above-mentioned problems. A printing drum in which a rotating cylindrical printing drum body is provided with a stacking hole and a printing drum inside the printing drum are provided. A supply nozzle provided with a discharge port for supplying the exothermic composition to the plate drum, and a belt-like conveying device for running a base sheet on which the exothermic composition is laminated, the belt-like conveying device The conveying belt of the belt-shaped conveying device and the plate drum are disposed below the plate drum and sandwich and hold a part of the base sheet in a planar shape along the outer peripheral surface of the plate drum body. The heating composition is filled from the supply nozzle into the stacking hole of the plate drum and stacked on the base sheet within the sandwiched and held range.

  The laminated package manufacturing apparatus is configured such that the conveying belt and the plate drum of the belt-shaped conveying device sandwich and hold a part of the base sheet in a planar shape along the outer peripheral surface of the plate drum body, Within this sandwiched and held range, the exothermic composition is filled from the supply nozzle into the stacking holes of the plate drum and laminated on the base sheet, so that the exothermic composition laminated on the base sheet is scraped off with a doctor. Even if resistance that occurs sometimes occurs, wrinkles are unlikely to occur in the portion of the base sheet where the heat generating composition is stacked, and stacking with less disturbed shape of the heat generating composition becomes possible.

  In the laminated package manufacturing apparatus, the plate drum center angle is set to 5 ° or more in a range where the conveying belt and the plate drum are in contact with each other. The central angle of the plate drum is set to 5 ° or more. If the central angle is smaller than 5 °, the range sandwiched between the conveyor belt and the plate drum becomes small, and the size of the lamination pattern (lamination This is because the above-mentioned effect cannot be obtained.

  In the laminated package manufacturing apparatus, an endless belt-shaped transport belt is rotated by a shaft roll, and the shaft roll on the upstream side of the base sheet contacts the transport belt with the base sheet interposed therebetween. It is the structure to make.

  In the laminated package manufacturing apparatus, a filling auxiliary magnet is provided at the position of the supply nozzle and below the conveying belt.

  In the laminated package manufacturing apparatus, a plate separating magnet is provided below the conveying belt at a position where the plate drum and the conveying belt are separated from each other.

  In the apparatus for manufacturing a laminated package, a powder spraying device for spraying powder such as a water-absorbing agent on the base sheet in a subsequent process is installed at a downstream position of the plate drum.

  In the laminated package manufacturing apparatus, it is preferable that a means for preventing slippage with the base sheet is provided on the surface of the transport belt.

  In the present invention, a part of a base sheet is sandwiched and held in a planar shape by a plate drum and a belt-shaped transport device, and the exothermic composition is laminated within the sandwiched and held range. Even if the base sheet has a property, wrinkles are unlikely to occur in the portion of the base sheet where the heat generating composition is stacked, and the heat generating composition can be stacked with less disturbance. As a result, the exothermic composition laminated on the substrate sheet can be prevented from being distorted and deformed, and the exothermic composition can be laminated on the packaging material in an accurate and uniform shape.

  Also, in contrast to a plate belt system that requires a shaft roll on the doctor surface of the plate belt, troubles that the exothermic composition adheres to parts other than the plate belt due to a plate drum that does not require a shaft roll, and plate thickness of the plate belt Such structural problems can be solved.

It is a front view which shows the outline of one embodiment of this invention. It is a top view which shows the outline. It is a front view which shows the whole outline. A laminated package is shown, (a) is a plan view and (b) is a cross-sectional view. It is a front view which shows the outline of other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, as shown in FIGS. 4 (a) and 4 (b), the laminated package 50 to be manufactured has a sticky shape (viscous) in a heat generation area excluding a seal portion 52 having a predetermined width around the upper surface of one packaging material 51. The exothermic composition 3 of the tempered composition is laminated, and the powdery water absorbent 4 is laminated on the top surface of the exothermic composition 3 and the exothermic composition 3 and the water absorbent 4 are covered with the other packaging material 53. The periphery of both packaging materials 51 and 53 is sealed (adhesion, thermal bonding, thermal fusion).

  Furthermore, at least one of the both packaging materials 51 and 53 has air permeability, and air circulation is possible when the laminated packaging body 50 is used, and the entire laminated packaging body 50 is not heated so as not to generate heat at the distribution stage. It is packaged in an airtight (non-breathable) exterior material (not shown).

  Examples of the exothermic composition 3 include an ink-like or cream-like composition in which iron powder, water, salts, and activated carbon, which are magnetic materials, are mainly blended and a thickener and other materials are blended and mixed.

  Examples of the water-absorbing agent 4 include a polymer material (water-absorbing polymer) that smoothly absorbs a large amount of an aqueous solution of water or salts and absorbs a large amount thereof.

  Next, the laminated packaging body manufacturing apparatus 1 according to an embodiment of the present invention will be described with reference to FIGS. The manufacturing apparatus 1 includes a large number of rollers 2a, 2b, and 2c that run a base sheet S1 (corresponding to one packaging material 51 after manufacture) wound in a roll shape, and the base sheet S1 and the exothermic composition 3. Material supply means 5, a belt-like conveying device 6 for running the base sheet S1 supplied with the exothermic composition 3, and the coating material sheet S2 (on the base sheet S1 on which the exothermic composition 3 is laminated) Rollers 3a, 3b, 3c for running the other packaging material 51 after manufacture), and laminated packaging means 7 for packaging the heat generating composition 3 with the base material sheet S1 and the coating material sheets S22a, 2b, 2c. I have.

  The material supply means 5 includes a cylindrical plate drum 10, a supply nozzle 20 that supplies and supplies the exothermic composition 3 to the plate drum 10, and a powder spraying device 27 that sprays the water-absorbing agent 4 as powder. ing.

  As shown in FIG. 2, the plate drum 10 is a plate drum body formed in a cylindrical shape by a non-magnetic material such as a pair of rotating frames 11, 11 and both rotating frames 11, 11 such as a stainless steel plate and an aluminum plate. Twelve. The pair of rotary frames 11 and 11 are rotatably supported by a plurality of support rollers 9a, 9b, 9c, and 9d provided to face both sides of the machine frame 8 on the apparatus main body side. In the plate drum body 12, a plurality of lamination holes 13 having a predetermined shape are formed in the circumferential direction. The shape of the stacking hole 13 is not particularly limited, and can be arbitrarily set.

  A gear 14 is provided around the outer periphery of the rotary frames 11, 11, and a drive gear 16 connected to a rotary drive source 15 such as a motor is engaged with the gear 14. The plate drum 10 is controlled to rotate at a desired speed by the rotation drive source 15.

  The supply nozzle 20 is disposed in the plate drum body 12. The means for fixing the supply nozzle 20 is not particularly limited. For example, the supply nozzle 20 can be fixed to the machine frame 8 via a connecting rod (not shown) inserted into the plate drum body 12.

  The supply nozzle 20 is connected to a pump (not shown) that pressurizes and feeds the exothermic composition 3, and a slit-like discharge port portion 20 a that discharges the exothermic composition 3 in a thin plate shape with a predetermined width is formed. The discharge direction of the article 3 is directed to the stacking hole 13 side of the plate drum body 12. Further, a doctor 25 for scraping off the heat generating composition 3 so as to be in sliding contact with the inner peripheral surface of the plate drum body 12 at the discharge port portion 20a of the supply nozzle 20 and downstream in the traveling direction of the base sheet S1. Is provided.

  The belt-shaped conveying device 6 is provided below the plate drum 10, and is wound around the upstream conveying shaft roll 31, the downstream conveying shaft roll 32, and both the rolls 31, 32, and An endless belt-like transport belt 33 that sandwiches and holds the base sheet S1 with the plate drum 10 and a motor 35 as a driving means are provided. The upstream side means the upstream side in the traveling direction of the base sheet S1.

  The motor 35 rotationally drives the downstream conveying shaft roll 32 via a speed reducer (not shown), thereby controlling the rotation of the conveying belt 33 in the direction of the arrow shown in FIG. The rotation center (rotation shaft) 31 a of the upstream conveying shaft roll 31 is positioned upstream of the rotation center 10 a of the plate drum 10. Further, the height of the rotation center 31a of the upstream conveyance shaft roll 31 and the rotation center 32a of the downstream conveyance shaft roll 32 are set to be equal, and the diameter of the upstream conveyance shaft roll 31 is also set. D1 is set larger than the diameter D2 of the downstream conveying shaft roll 32.

  Further, the upper surface of the upstream conveying shaft roll 31 is located above the lower surface of the plate drum main body 12, and the outer peripheral surface of the upstream conveying shaft roll 31 and the outer peripheral surface of the plate drum main body 12 are connected to each other. By bringing them closer, the plate drum body 12 presses the upper portion of the conveying belt 33 and the upstream portion downward.

  As a result, a part of the conveyance belt 33 is pressed against the plate drum body 12 while being curved along the outer peripheral surface of the plate drum body 12, so that a curved portion 33 a is formed on the conveyance belt 33. The curved portion 33 a has a predetermined length along the circumferential direction of the plate drum body 12 (a predetermined range where the conveying belt 33 and the plate drum are in contact). Specifically, the discharge port portion 20a serving as the filling portion of the supply nozzle 20 is provided in the downstream portion A of the curved portion 33a, and between the radius connecting the downstream portion A and the upstream portion B from the rotation center 10a of the plate drum 10. Is set to 5 ° or more.

  In this way, by setting the central angle α to 5 ° or more, a large range in which the base sheet S1 is sandwiched and held between the transport belt 33 and the plate drum body 12 can be secured. Further, in the sandwiched and held range, tension is applied to the conveyance belt 33, and the curved portion 33a in the sandwiched and held range causes the base sheet S1 to be placed on the outer peripheral surface of the plate drum body 12. The supply nozzle 20 has a configuration in which the exothermic composition 3 is laminated on the base sheet S1 within a range in which the supply nozzle 20 is pressed and held in such a planar shape.

  Reference numeral 38 denotes a conveying belt deflection preventing tension roller. The conveying belt bend prevention tension roller 38 is for preventing the conveying belt 33 from being bent when the plate drum body 12 is detached from the conveying belt 33, and a lower side portion of the conveying belt 33. Is pressed downward to apply tension to the conveyor belt 33. The number of the conveying belt deflection preventing tension rollers 38 may be one or more, and the conveying belt deflection preventing tension rollers 38 may be disposed at any position as long as tension is applied to the conveying belt 33. Can be provided.

  In addition, a magnet 55 capable of variably controlling the magnetic force is provided below the supply nozzle 20 and inside the conveyance belt 33 to provide magnetism. The magnet 55 may be a permanent magnet having a constant magnetic force. The magnet 55 has a predetermined length in the traveling direction of the conveying belt 33, and is used for filling assistance for adsorbing the exothermic composition 3 filled in the stacking hole 13 of the plate drum body 12 to the base sheet S1. As well as for separating the plate at a position where the plate drum 10 and the conveying belt 33 are separated from each other. In addition, the magnet 55 may be a separate one for the filling assist and the plate separation.

  A covering material sheet S2 (corresponding to the other packaging material 53 after manufacture) is fed out by rollers 3a, 3b, 3c on the upper part of the base material sheet S1 on which the exothermic composition 3 and the water absorbing agent 4 are laminated. Reference numeral 56 denotes an adhesive application means for applying an adhesive such as hot melt to the coating material sheet S2 in a spray form.

  The laminated packaging means 7 is provided in the middle of conveyance after the joining of the base sheet S1 and the covering material sheet S2, and includes a sealing means 57 composed of a pair of upper and lower heat rolls for bonding both sheets S1 and S2, and a desired outer shape. It comprises cutting means 58 composed of a pair of upper and lower cutter rolls that cut into a shape.

  Next, the manufacturing method by the manufacturing apparatus 1 of the said laminated package is demonstrated.

  First, on the upstream side of the production line, the base sheet S <b> 1 is run at a predetermined speed between the plate drum 10 and the belt-like transport device 6. Further, the base sheet S <b> 1 travels while being curved by the cooperation of the plate drum 10 and the belt-shaped transport device 6. That is, the conveyance belt 33 of the belt-shaped conveyance device 6 and the plate drum main body 12 of the plate drum 10 hold a part of the base sheet S1 in a planar shape along the outer peripheral surface of the plate drum main body 12. To do.

  Further, the plate drum 10 is rotationally controlled by the rotation drive source 15 so as to match the traveling speed of the base sheet S1, and the exothermic composition 3 pressurized and fed by the pump is discharged to the discharge port portion 20a of the supply nozzle 20. Extruded from. The exothermic composition 3 extruded from the supply nozzle 20 passes through the laminating holes 13 of the plate drum body 12 and is sandwiched and held on the base sheet S1 by the conveying belt 33 and the plate drum 10. Are stacked in the outer shape of the stacking hole 13.

  When the heat generating composition 3 is stacked, the heat generating composition 3 is stacked on the base sheet S <b> 1 by the magnet 55 by the iron which is a magnetic material contained in the heat generating composition 3. Further, since the doctor 25 slides on the inner peripheral surface of the rotating plate drum main body 12, the doctor 25 slides off the excess exothermic composition 3 filled in the stacking hole 13.

  Although resistance at the time of cutting by the doctor 25 acts on the base sheet S1, the portion immediately upstream of the doctor 25 (upstream portion from the filling portion of the exothermic composition 3) is sandwiched between the conveying belt 33 and the plate drum body 12. Since the base sheet S1 is attached and held, wrinkles are not generated in the base sheet S1, and the base sheet S1 can be prevented from being inadvertently extended. As a result, the exothermic composition 3 can be accurately and uniformly laminated on the sheet S1 in which no wrinkles are generated without being deformed in a predetermined shape.

  Furthermore, since the laminated exothermic composition 3 is adsorbed to the base sheet S1 by the magnet 55, it can be easily separated from the rotating plate drum body 12.

  Next, the water-absorbing agent 4 is sprayed from the powder spraying device 27 in a subsequent process onto the exothermic composition 3 of the base material sheet S1 on the transport belt 33, and an adhesive application portion is applied to the overlapping surface of the coating material sheet S2. The adhesive is applied by 56. Further, after the base material sheet S1 and the coating material sheet S2 are sealed by the sealing means 57, the cutting means 58 punches them into individual desired laminated packages 50, and thereafter, the individual laminated packages 50 are airtight. In a bag (not shown).

  The present invention is not limited to the embodiment described above. For example, as shown in FIG. 5, the means for bending the base sheet S <b> 1 may be a single roll or a plurality of rolls 36 which are separate members from the transporting shaft roll 31. In this case, the upstream conveying shaft roll 31 can be set to the same diameter as the downstream conveying shaft roll 32. Note that the same members as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  Further, the supply nozzle 20 does not necessarily have to face vertically downward, and can be slightly inclined toward the upstream side of the base sheet S1 as indicated by a virtual line in FIG. The inclination angle of the supply nozzle 20 can be arbitrarily set so as to have a portion where the base sheet S1 is sandwiched and held immediately before the upstream side of the supply nozzle 20.

  Further, a means for preventing slippage with the base sheet S1 is provided on the surface of the transport belt 33 (a surface in contact with the base sheet S1). Specifically, as shown in FIG. 2, as such means, a rubber plate 40 having a large friction coefficient provided on the entire surface or a part of the surface of the conveying belt can be exemplified, but it is particularly limited. It is not a thing.

  In addition, the magnet 55 can be provided with a guide member 59 for guiding the conveying belt 33 from below so as to follow the curved portion 33a of the base sheet S1. Such a guide member can be provided as a separate member from the magnet 55.

  Moreover, although the viscous composition was illustrated as the exothermic composition 3, the exothermic composition may be a powder form. In the case where the exothermic composition 3 is in powder form, examples of the supply means for conveying and supplying the exothermic composition 3 to the supply nozzle 20 include a belt conveying device and a screw conveying device. Further, the exothermic composition 3 can be dropped by its own weight from the supply nozzle 20 and can be adsorbed to the base sheet S <b> 1 by the magnetic adsorption of the magnet 55. Note that the powder spraying device 27 is not necessarily provided.

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus of laminated package 3 Exothermic composition 4 Water absorbing agent 5 Material supply means 6 Belt-like conveyance apparatus 7 Laminated packaging means 10 Plate drum 12 Plate drum body 13 Lamination hole 20 Supply nozzle 20a Discharge port 25 Doctor 27 Powder Spreading device 31 Upstream conveying shaft roll 32 Downstream conveying shaft roll 33 Conveying belt 33a Bending portion 36 Roll 40 Rubber plate 50 Laminated packaging 51 One packaging material 53 The other packaging material 55 Magnet S1 Base sheet S2 Coating material sheet

Claims (7)

A plate drum in which a rotating cylindrical plate drum body is provided with a stacking hole; and
A supply nozzle provided inside the plate drum and provided with a discharge port for supplying the exothermic composition to the plate drum;
A belt-like conveyance device for running a base sheet on which the exothermic composition is laminated,
The belt-like conveying device is disposed below the plate drum, and the conveying belt and the plate drum of the belt-like conveying device face a part of the base sheet along the outer peripheral surface of the plate drum body. A laminated packaging body characterized in that the exothermic composition is filled from the supply nozzle into the stacking hole of the plate drum and laminated on the base sheet within the sandwiched and held range. apparatus.   2. The apparatus for manufacturing a laminated package according to claim 1, wherein a range in which the conveying belt and the plate drum are in contact with each other has a plate drum central angle of 5 ° or more. In the manufacturing apparatus of the laminated package according to claim 1 or 2,
The belt-like conveyance device has a configuration in which an endless belt-like conveyance belt is rotated by a shaft roll, and a shaft roll on the upstream side of the base sheet contacts the plate belt with the conveyance belt having the base sheet interposed therebetween. An apparatus for producing a laminated package, wherein In the manufacturing apparatus of the laminated package according to any one of claims 1 to 3,
An apparatus for manufacturing a laminated package, wherein a magnet for filling assisting is provided at the position of the supply nozzle and below the conveying belt. In the manufacturing apparatus of the laminated package according to claim 4,
An apparatus for producing a laminated package, wherein a magnet for separating a plate is provided below the conveying belt at a position where the plate drum and the conveying belt are separated from each other. In the manufacturing apparatus of the laminated package according to any one of claims 1 to 5,
An apparatus for manufacturing a laminated package, wherein a powder spraying device for spraying powder such as a water-absorbing agent on the base sheet in a subsequent step is installed at a downstream position of the plate drum. In the manufacturing apparatus of the laminated package according to any one of claims 1 to 6,
An apparatus for manufacturing a laminated package, wherein means for preventing slippage with a base sheet is provided on a surface of the conveying belt.

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