JPH1120111A - Device for manufacture of laminated package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously produce a laminated package by coating an extruded base material sheet with viscous material in a film state from a cavity of a pattern roll for making the sheet travel in contact, and laminating to coat it with a film sheet, thereby uniformly coating it with the viscous material in a uniform film thickness. SOLUTION: The apparatus for manufacturing a laminated package comprises a first traveling means 3 of rollers 2, 2a to travel a roll-like base material sheet S1 at a desired speed while giving necessary tension, and a second traveling means 4 for traveling a film sheet S2 similarly to the sheet S1. Further, a cavity of a desired shape is provided at a body of a pattern roll 13 separable from a backup roll 18 and a material extrusion nozzle 24 for discharging to coat the sheet S1 with the viscous material in a thin plate state is provided to form a material coating means 5. And, an adhesive coating unit 27 is provided at an upstream immediately before a press roll 26 of first, second press rolls 28, 29 of a laminating packaging means 6 to coat with adhesive so as to superpose the sheet S1 with the viscous material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a laminated package in which a viscous material is formed into a film and is packaged in a stack with upper and lower sheet-like packaging materials.

[0002]

2. Description of the Related Art A disposable body warmer is used to be put in clothes and fixed to a body, and is widely known as a warmer in winter, which is oxidized by contact with oxygen in the air. In order to obtain an exothermic effect accompanying the reaction, a powdery exothermic composition containing iron powder, water, salts, activated carbon, and a water retention agent as main components is contained in a bag having air permeability.

[0003]

However, since the exothermic composition is powdery, the distribution is uneven in the bag, so that the temperature distribution is not uniform, and discomfort during use, It had the drawback of causing problems such as burns. In recent years, a viscous exothermic composition having the property of flowing when an external force is applied has been developed in place of the powdery exothermic composition, and such a viscous exothermic composition is uniformly formed into a film on a substrate. By applying and covering the upper surface with a covering material to form a laminated package, it has become possible to eliminate the above-mentioned drawbacks.However, such a manufacturing apparatus is not yet known, and the laminated package is not used. A device that can be manufactured continuously is needed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the need for a continuous production apparatus for a laminated package based on the above-mentioned prior art, and extrudes and supplies a viscous material to a hole of a pattern roll. The gist is that the base sheet is run while being in contact with the roll, the viscous material is applied in the form of a hole on the base sheet in the form of a film, and the coating sheet is laminated and coated on the base sheet. The above object is achieved by providing an apparatus for manufacturing a laminated package.

[0005] The manufacturing apparatus comprises a pattern roll, a backup roll, a material extrusion nozzle, a pump, a first traveling means, a second traveling means, a press roll, and an adhesive application section. The pattern roll is formed of a non-magnetic material. A hole having a desired shape is provided in the circumferential direction in the cylindrical drum body whose rotation is controlled.

[0006] The backup roll is provided with magnetism and is provided on the outer peripheral surface of the pattern roll so as to be able to freely contact with and separate from the pattern roll. The discharge port is directed toward the hole, and the viscous material is discharged in the form of a thin plate.

The first traveling means travels the base sheet between the pattern roll and the backup roll and between the pattern roll and the press roll. The second traveling means travels the coated sheet over the substrate sheet. While forming the roll as a hard body, the other second roll is filled with gas under pressure, the outer peripheral material having rubber elasticity is inflated into a roll shape to form a balloon roll, and the coated sheet is formed on the base sheet. The adhesive coating section applies the adhesive to the coated sheet.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. The manufacturing apparatus 1 for a laminated package according to the present invention applies the viscous material W to the base sheet S1 in a film form, coats the viscous material W side with the coating sheet S2, The base sheet S1 around the W and the coating sheet S2 are adhered to each other to produce a laminated package W1 which is packaged in a laminated manner, and the base sheet S1 wound in a roll is desired on a production line. The first traveling means 3 is composed of a number of rollers 2, 2a... Which travel while giving the necessary tension at a speed, and the second traveling means 4 which travels the coated sheet S2 wound like a roll in the same manner as the base sheet S1. And a material application means 5 for applying the viscous material W to the base material sheet S1, and a laminating and packaging method for covering the base material sheet S1 on which the viscous material W is applied, coating and laminating the coating sheet S2, and packaging. Means 6 are provided.

The material applying means 5 pivots rollers 9, 9a... On four sides inside (opposite sides) of supporting frames 8, 8a which are erected on both sides of a machine frame 7 which constitutes a part of a production line. , And a rotating frame 10, which is formed into a ring shape by these rollers 9, 9a,
10a is rotatably supported, and a cylindrical drum body 11 made of a non-magnetic material such as a stainless steel plate or an aluminum plate is fixed between the rotary frames 10 and 10a. , 12a… are arranged in the circumferential direction to form a pattern roll
13 The shape of the holes 12, 12a is a foot shape, but is not limited at all.

A gear 14 is provided around the outer periphery of the rotating frames 10 and 10a, and a rotating drive source such as a motor is mounted on the gear 14.
A drive gear 16 connected to 15 meshes with each other, and the rotation of the pattern roll 13 is controlled by a rotation drive source 15 at a desired speed.

A backup roll 18 is rotatably provided below the pattern roll 13 at the distal end of a pair of support arms 17 whose base ends are pivotally supported. A linear drive source such as a cylinder is mounted on the support arm 17. The support arm 17 is controlled to swing by a linear drive source 19 so that the outer peripheral surface of the backup roll 18 can be freely moved toward and away from the outer peripheral surface of the pattern roll 13.

An electromagnet (not shown) capable of variably controlling the magnetic force or a permanent magnet (not shown) having a constant magnetic force is provided in the backup roll 18 to provide magnetism. I have.

On both sides of the pattern roll 13, horizontal arms 20, 20a are arranged, and the base ends of the horizontal arms 20, 20a are linear guides 21, 21a fixed vertically to the support frames 8, 8a. And a linear drive source 19 such as a cylinder is connected to the horizontal arms 20 and 20a, and the horizontal arms 20 and 20a are controlled to move up and down by the direct drive source 19.

At the distal ends of the horizontal arms 20, 20a, columns 22, 22a are mounted so that the standing angle can be adjusted. A connecting rod 23 is provided between the columns 22, 22, and the connecting rod 23 is patterned. The material extrusion nozzle 24 is arranged at a hollow position in the roll 13 and fixed below the connecting rod 23.

The material extrusion nozzle 24 is connected to a pump 25 for pressure-feeding the viscous material W, and has a slit-shaped discharge port 24a for discharging the viscous material W in a predetermined width in a thin plate shape. , The discharge direction of the viscous material W
The linear drive source 19 causes the tip of the discharge port 24a of the material extrusion nozzle 24 to slidably contact the inner peripheral surface of the pattern roll 13.

The laminating and packaging means 6 is provided on the downstream side of the production line of the material applying means 5 and comprises a press roll 26 and an adhesive applying section 27. The press roll 26 is a first roll 28
And the second roll 29 are disposed vertically, and the first roll 28 is formed of a hard member that does not substantially deform and is rotatably provided on the machine frame 7, while the second roll 29 is provided on the machine frame 7.
The pair of swing arms 30 are provided rotatably at the distal ends of a pair of swing arms 30. The swing arm 30 has a linear drive source such as a cylinder.
The swing arm 30 is swing-controlled by the linear drive source 19.

The second roll 29 is formed as a balloon roll. The balloon roll has side flanges 31 on both sides.
Between a, an outer peripheral member 32 having rubber-like elasticity is formed in a tubular shape and provided in an airtight manner, and a compressed air source (not shown) is connected to a hollow center shaft 33 passing through the side flanges 31 and 31a. By pressurizing and filling the space inside the outer peripheral member 32 with the gas through the communication hole 34 of the center shaft 33, the outer peripheral member 32 is expanded in a roll shape.

The adhesive application section 27 is provided on the upstream side immediately before the press roll 26. The adhesive application section 27 is provided with a viscous material by means of the material application means 5 which runs between the first roll 28 and the second roll 29 of the press roll 26. The coated sheet S2 that is run so as to be superimposed on the base sheet S1 coated with the material W
A spray head 27a for applying an adhesive, such as hot melt or cold glue, in a spray form is provided on the superposed surface.

Further, on the downstream side where the base sheet S1 and the coating sheet S2 are laminated and adhered and run, a bonding area around the viscous material W applied in the form of a film is left with a desired width. There is provided a cutting device 35 for punching into a laminated package W1.

Next, as the viscous material W used for the laminated package W1, any material having a property of flowing when an external force is applied may be used. For example, iron powder, iron powder,
An exothermic composition containing water, salts, activated carbon, and a water retention agent as main components, and a water-absorbing polymer, a thickener, and water in a desired ratio are mixed and mixed to provide an exothermic function and have a viscosity (20%). C) of about 1000 to 7500000 cps.

As the base sheet S1 and the coating sheet S2, if the viscous material W is made to have an air-permeability in order to cause an oxidation reaction upon contact with oxygen, For example, as an example of the base sheet S1, a sheet obtained by laminating a water-absorbing polymer-containing polyester nonwoven fabric on one side of a non-breathable polyethylene film may be mentioned. As an example of the coating sheet S2, one side of a polyethylene porous film may be What laminated | stacked the nonwoven fabric made from nylon is mentioned. Also, the base sheet S1
It is preferable that the thickness of the coating sheet S2 be 2 mm at the maximum in order to provide flexibility even when the laminated package W1 is formed.

Since the base sheet S1 is made to have water absorption as described above, the water of the viscous material W applied on the base sheet S1 is absorbed by the water-absorbing polymer. Since the adhesion between S1 and the viscous material W is good, the movement and the deviation of the viscous material W on the base sheet S1 can be regulated, and the moisture in the viscous material W decreases. In addition, the barrier layer due to moisture, which suppresses the exothermic reaction, is reduced, and good contact with oxygen at the time of use is obtained.

Next, a method of manufacturing the laminated package according to the present invention using the manufacturing apparatus will be described. First, in the material applying means 5 on the upstream side of the production line, the base sheet S1 is caused to run at a predetermined speed by the first running means 3 between the pattern roll 13 and the backup roll 18, and the running speed of the base sheet S1 is increased. By controlling the rotation of the pattern roll 13 by the rotation driving source 15 so as to match the pressure, the viscous material W is fed under pressure to the material extrusion nozzle 24 by the pump 25, so that the thin plate is discharged from the discharge port 24a of the material extrusion nozzle 24. The viscous material W extruded in a shape is a pattern roll
, Through a part of the holes 12, 12 a,... Through the backup roll 18 to contact the outer peripheral surface of the pattern roll 13.
Are applied in a film shape on the base sheet S1 which is run so as to cover a part of the holes 12a.

At the time of such application, the backup roll 18 is magnetized, so that the viscous material W is adsorbed on the base sheet S1 by the iron which is the magnetic material contained in the viscous material W. The thickness of the viscous material W to be applied while being applied in the form of a film is appropriately designed depending on the discharge amount of the viscous material W, the thickness of the drum body 11 in which the holes 12, 12a,. Can be changed.

Next, the pattern roll 13 of the material applying means 5
Sheet S1 coated with viscous material W that has passed through
Is sequentially fed to the laminating and wrapping means 6 by the first traveling means 3, and the coating sheet S2 laminated on the base sheet S1 is also sequentially fed to the laminating and wrapping means 6 by the second traveling means 4. In the packaging means 6,
Adhesive is applied by the spray head 27a of the adhesive applying section 27 to the superimposed surface of the coating sheet S1 at a position immediately before the upstream side where the press roll 26 is sent between the first roll 28 and the second roll 29. Thereby, the base sheet S1 and the coating sheet S2 are pressed and bonded by the press roll 26 and laminated, and when the continuous laminated body travels and reaches the cutting device 35, it is punched into a laminated package W1 having an individual desired shape, Thereafter, the individual laminated package W1 is packaged in an airtight bag (not shown).

At the time of such lamination, the second roll 29 of the press roll 26 is formed as a balloon roll, so that the viscous material W applied to the base sheet S1 is raised by the thickness thereof, Since the outer peripheral material 32 of the balloon roll is a material having rubber-like elasticity that is easily deformed, the outer peripheral material 32 is formed along the cross-sectional shape of the base sheet S1 and the viscous material W.
Since the pressure-welding portion 32 is deformed and the inside of the balloon roll is filled with gas under pressure, the pressing force at all the pressure-welding portions is uniformized, so that the vicinity of the applied viscous material W is Are bonded by pressing.

Further, when the viscous material W having a heat-generating function is used to form a laminated package W1 as a disposable warmer, the viscous material W is not uneven and is laminated with a uniform thickness. Because of the uniform temperature distribution, discomfort during use and inconveniences such as burns caused by high-temperature spots can be prevented, safety is enhanced, and the thickness of the viscous material W is reduced. The laminated package W
1 is thin, has high flexibility, and has an effect of improving the fit to curved portions and bent portions such as the shoulders and soles of the body, so that the feeling of use is excellent.

In addition, since the viscous material W having excess water is used during the manufacturing process of the laminated package W1, the excess water becomes a barrier layer for the oxidation reaction, and the oxidation reaction during the manufacturing is prevented. As a result, the heat generation function of the viscous material W can be prevented from deteriorating, and since the surplus water is absorbed by the base sheet S1 after being manufactured in the laminated package W1, the heat generation reaction is suppressed. As a result, the barrier layer is reduced and the contact with oxygen at the time of use becomes good, so that a desired heat generation effect can be obtained, and the quality and reliability can be maintained satisfactorily.

[0029]

In summary, since the present invention is configured as described above, the viscous material W discharged in the form of a thin plate from the discharge port 24a of the material extruding nozzle 24 is provided with the holes 12 of the pattern roll 13,
, And can be applied in a uniform film thickness on the base sheet S1 which is continuously run while being in contact with the outer peripheral surface of the pattern roll 13, and the viscous material W is pressed on the base sheet S1. Is applied stably without being affected by the adhesiveness between the base sheet S1 and the viscous material W at all. The slit width of 24a, the thickness of the pattern roll 13, the discharge amount of the viscous material W, the advantage of being able to be arbitrarily adjusted by the rotation speed of the pattern roll 13, and the viscous material W is applied in a film form. Since the coated sheet S2 to which the adhesive has been applied is continuously laminated on the base sheet S1 and continuously pressed and pressed by the press roll 26, the laminated package W1 can be continuously produced.

Further, since the backup roll 18 is magnetized, the sticky material W containing the magnetic material is applied with an attractive force when it is applied to the base sheet S1 by the magnetic force. Since the adhesion to the material sheet S1 is improved and stabilized, there is an advantage that the film thickness in the applied state can be reduced.

Further, since the press roll 26 is formed as a balloon roll, the press-contact portion of the outer peripheral material 32 is deformed along the cross-sectional shape of the base sheet S1 and the viscous material W, and gas is filled in the balloon roll. Due to the pressurized filling, the pressing force at all of the pressure contact points becomes uniform, and the applied viscous material W does not move, thereby preventing the biasing. The practical effect thereof is extremely large, for example, the thickness of a certain laminated package W1 can be made uniform.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of an apparatus for manufacturing a laminated package according to the present invention.

FIG. 2 is a schematic perspective view showing a main part of the manufacturing apparatus.

FIG. 3 is a schematic plan view of a material application unit.

FIG. 4 is a schematic side view of a material application unit.

FIG. 5 is a schematic sectional view of a material applying means.

FIG. 6 is a schematic partial cross-sectional view showing a state in which a viscous material W is applied onto a base material sheet by a material applying means.

FIG. 7 is a schematic sectional view of a material extrusion nozzle constituting a material application means.

FIG. 8 is a schematic perspective view of a material extrusion nozzle.

FIG. 9 is a schematic side view of the laminated packaging means.

FIG. 10 is a schematic cross-sectional view showing a press-contact state by press rolls constituting the laminating and packaging means.

[Description of Signs] 3 First traveling means 4 Second traveling means 11 Drum body 12, 12a ... Hole 13 Pattern roll 18 Backup roll 24 Material extrusion nozzle 24a Discharge port 25 Pump 26 Press roll 27 Adhesive application part 32 Peripheral material

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI // B32B 27/32 B32B 27/32 Z

Claims (3)

[Claims] 1. A pattern roll in which a hole having a desired shape is provided in a circumferential direction in a cylindrical drum main body whose rotation is controlled, a backup roll which is provided so as to be able to freely contact and separate from an outer peripheral surface of the pattern roll; A material extrusion nozzle having a discharge port that is directed toward the hole and has a viscous material in the form of a thin plate, a pump that pressurizes and supplies the viscous material to the material extrusion nozzle, and a press roll between a pattern roll and a backup roll. A first traveling means for traveling the base sheet, a press roll for laminating and coating a coating sheet to be traveled on the substrate sheet by the second traveling means, and an adhesive application section for applying an adhesive to the coating sheet are provided. An apparatus for manufacturing a laminated package, comprising: 2. The composition of a viscous material includes a magnetic material,
2. The apparatus according to claim 1, wherein the backup roll is provided with magnetism and the pattern roll is formed of a non-magnetic material. 3. A balloon roll in which one of the first rolls is formed of a hard body and the other second roll is filled with a gas under pressure, and an outer peripheral material having rubber elasticity is inflated into a roll shape. The apparatus for producing a laminated package according to claim 1 or 2, wherein: