JPH0695973B2 - Product case manufacturing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a product case that stores products for sale, exhibition, and the like.

Background Art The prior art is to store a product in a transparent plastic container that can store a relatively small product, and then close the container opening with a cardboard with product advertisement etc. and seal it. There is.

Yet another prior art is one in which a part of a paper container that can store products is cut out, and a transparent sealing material such as nylon is attached to the cutout so that the appearance of the product inside can be seen. is there.

In such a prior art, the production process of the product case is complicated, and therefore the cost of the product case is high. Moreover, since it is necessary to customize the product storage case according to the type, size, shape, etc. of the product, it is not suitable for mass production of various product cases.

OBJECT The object of the present invention is to solve the above-mentioned technical problems and to provide a method for manufacturing a product case which is simple and inexpensive to manufacture.

Example FIG. 1 is a front view of a product case 1 according to the present invention, FIG. 2 is a rear view thereof, FIG. 3 is a right side view thereof, and FIG. 4 is a left side view thereof. FIG. 5 is a plan view thereof, and FIG. 6 is a bottom view thereof. This product case 1
Includes a base 2 basically made of paper or synthetic resin material having soft elasticity, and a transparent sealing material 3 adhered to the base 2. On the surface 4 of the substrate 2, one or a plurality of mold recesses 6, 7, 8 extending in the vertical direction are formed. An opening 5 that can be opened and closed is formed at one end of each of the mold recesses 6, 7, and 8. The opening 5 has such a size that a product indicated by an imaginary line 9 in FIG. 10 can be gently inserted.

The manufacturing apparatus for the product case 1 will be described below. This device 20 is basically a paper feeding means for a mount 21 that constitutes the base body 2.
23, the application means 25 for applying the adhesive 24 to the mount 21, and the mount
Drying means 26 for drying the adhesive 24 on 21; adhesive means 27 for adhering the sealing material 3 on the mount 21 via the adhesive 24; and the mount after the adhesive means are cut in accordance with the outer shape of the product case. And cutting means 28. The mount 21 is preliminarily formed with the opening 5 and the mold recesses 6, 7, and 8 in a large number of product storage areas 28 indicated by alternate long and short dash lines. Such mounts 21 are stacked on a paper feed table 29 that constitutes the paper feed means 23, and
Thus, the sheets 21 are discharged one by one to the conveying path 31, and the discharged sheet 21 is wound around a rotary roller 34 arranged in the sheet discharging direction, and is indicated by an arrow A in a state of being sandwiched between the claw portions. Half-turned in the direction.

The rotating roller 35 that constitutes the adhesive applying means 25 has a rotating shaft 35a that is parallel to the rotating shaft 34a of the rotating roller 34, and rotates in the direction opposite to the arrow A so that the mount 21 is rotated by the rotating roller 34. While being pinched, it is mounted on the conveyor belt 36 shown by the chain double-dashed line. An adhesive storage tank 37 is provided below the rotating roller 35,
In the adhesive storage tank 37, the adhesive 24 is applied to the outer peripheral surface of the rotary roller 35.
The rotary roller 38 for applying is immersed.

Urethane resin as a coating film component for the adhesive 24
It consists of 35% by weight and 13% by weight of toluene as a volatile component, 26% by weight of ethyl acetate, 19.5% by weight of isopropylene, and 6.5% by weight of methyl ketone.

The adhesive 24 is applied to the outer peripheral surface of the rotary roller 35 via the rotary roller 38 over the entire circumference in the circumferential direction. A plurality of recesses are formed on the outer peripheral surface of the rotating roller 35 so as to individually correspond to the respective product storage areas 28 on the surface of the mount 21 on which the rotating roller 35 travels.
39 are formed. Therefore, the adhesive 24 is applied only to the remaining portion excluding the product storage area 28 on the surface of the mount 21 that is conveyed in the arrow A direction while being pinched between the rotating rollers 34 and 35. A doctor plate 40 is provided on the downstream side of the rotary roller 35 in the direction of rotation indicated by the arrow B. The doctor plate 40 is used by the doctor plate 40.
The layer thickness of the adhesive agent 24 applied to the outer peripheral surface of the adhesive sheet 35 is defined, whereby the adhesive agent having a uniform layer thickness on the surface of the mount 21.
24 is applied.

The mount 21 sent out from the rotating rollers 34, 35 is conveyed by a conveyor belt 36 in an inverted state. Conveyor belt 36
Is formed in an end ring shape, and is wound around the feed rollers 41, 42, 43 arranged at the direction changing positions. This conveyor belt
A mesh fiber glass is preferably used for 36. The conveyor belt 36 is rotated in the direction of arrow C, and the carrier 21 is used to convey the mount 21 with the surface of the adhesive 24 facing upward.

An infrared heater 44 as a drying means 26 and a steam hot air fan 45 are arranged in the middle of this conveyance path. The adhesive 24 applied to the surface of the mount 21 is semi-dried by the infrared heater 44, and the front and back surfaces of the mount 21 are dried by the steam hot air fan 45. A glass fiber having heat resistance is used as the material of the conveyor belt 36, and can sufficiently withstand the heat of the infrared heater 44. Further, since the transport belt 36 is formed in a mesh shape, when the hot air of steam from above is blown downward by the fan 45 in FIG. It wraps around on the back surface of 21 and, as a result, the mount 21 is entirely dried. Since such hot steam of the steam is discharged from the exhaust blower 46, the mount 21 is urged toward the conveyor belt 36, which can surely prevent the displacement of the mount 21 due to the hot steam of the mount 21. it can.

After the adhesive 24 on the surface of the mount 21 is thus semi-dried, the mount 21 is fed to the pair of upper and lower feed rollers 47, 48 arranged on the downstream side in the transport direction indicated by the arrow C. On the other hand, the strip-shaped sealing material 3 wound around the reel 49 is fed to the feed rollers 47 and 48 via the half-roll roller 50. The sealing material 3 is made of a transparent synthetic resin material, for example, 15
A thin film of polypropylene having a thickness of μm to 50 μm is suitable. Alternatively, the sealing material 3 may be aesthetically treated using a colorable synthetic resin material. Feed roller 4 like this
The mount 21 and the seal member 3 which are superposed on each other via 7, 48 are an upper pressure contact roller 51 having an infrared heater,
The upper pressure contact roller 51 and the lower pressure contact roller 52 contacting each other are thermocompression bonded to each other in the approaching direction. With this, mount 21
A thin film of the sealing material 3 can be formed on the surface of the. Since the adhesive 24 is not applied to the product storage area 28 of the mount 21 as described above, the product storage area is defined by the product storage area 28 and the seal material 3. When the seal material 3 and the mount 21 are fixed, the seal material 3 and the mount 21
The air trapped between 21 and each product storage area on the mount 21
It is led out to the outside through the opening 5 formed in the inside 28.
Therefore, since the sealing material 3 and the mount 21 are bonded together without forming an air trap, the adhesive strength between the sealing material 3 and the mount 21 can be significantly increased.

The mount 21 to which the strip-shaped sealing material 3 ejected from the pressure contact rollers 51 and 52 is fixed is attached to the tray 5 via a pair of upper and lower feed rollers 53, 54, 55 and 56 arranged at intervals in the ejection direction.
Derived from 8. A cutting means 57 is provided between the feed rollers 53 to 56, and the cutting means 57 allows the tray to be cut.
From 58, the mount 21 will be derived.

FIG. 7 is a perspective view of the product case 1, and FIG. 8 is an exploded perspective view thereof.

In the method of storing the product in the product case 1, the product is inserted into the hollow portion between the front surface 4 of the base 2 and the sealing material 3 from the rear surface 11 side of the base 2 through the opening 5. At this time, depending on the form of the product, the mold recesses 6, 7, 8 formed in the base 2 are bent so that the hollow portion has a bulge, so that even a product having a thickness can be easily accommodated. be able to.

In this way, after the product case 1 is finished, the product case 1
Since it can be housed inside, the production process of the product case 1 is simplified and its productivity is improved.

9 is a front view of a product case 1a according to another embodiment of the present invention, FIG. 10 is a rear view thereof, FIG. 11 is a right side view thereof, and FIG. 12 is a left side view thereof. FIG. 13 is a plan view thereof, and FIG. 14 is a bottom view thereof. 9th ~
FIG. 14 is similar to the configuration of FIGS. 1 to 6, and corresponding parts are designated by the same reference numerals. An opening 5 which can be opened and closed is provided at one end of the mold recesses 6, 7, 8 and a second opening 12 is provided at the other end. The product can be inserted from the rear surface 11 side of the base body 2 into the hollow portion of the base body 2 and the sealing material 3 through the second opening 12. Next, by bending and fixing the lower end portion 13 of the base body 2 to the back surface 11 side of the base body 2, the product is opened in the second opening portion.
Secured from the case 12 for this to ensure the product is in case 1a
Can be stored inside.

The adhesive 24 is not limited to the above-mentioned embodiment, may be composed of 52.5% by weight of an isocyanate resin as a coating film component and 47.5% by weight of acetic acid esters as a volatile component, and as a curing agent. Is 10.3% by weight of vinyl resin, 5.5% by weight of olefin resin, and 1 of processed resin as coating film components.
It may be composed of 7.3% by weight and 66.9% by weight of aromatic hydrocarbons as a volatile component.

The openings 5, 12 and the mold recesses 6, 7, 8 of the base 1 are not limited to those in the above-mentioned embodiment, and the number and shape thereof can be arbitrarily selected according to the form of the product.

As described above, according to the present invention, the type, size, and shape of the product to be stored can be obtained by simply adhering the base body and the sealing material on the outer periphery of the product storage space defined by both with the adhesive. A corresponding product case can be manufactured easily and economically.

[Brief description of drawings]

1 is a front view of a product case 1 according to an embodiment of the present invention, FIG. 2 is a rear view thereof, FIG. 3 is a right side view thereof, and FIG.
FIG. 5 is a left side view thereof, FIG. 5 is a plan view thereof, FIG. 6 is a bottom view thereof, FIG. 7 is a perspective view of a product case 1, FIG. 8 is an exploded perspective view thereof, and FIG. A front view of a product case 1a according to another embodiment, FIG. 10 is its rear view, FIG. 11 is its right side view, FIG. 12 is its left side view, and FIG. 13 is its plan view.
FIG. 14 is a bottom view thereof. 1,1a …… Product case, 2 …… Base material, 3 …… Seal material, 5,
12 …… Opening part, 6,7,8 …… Mold recess,

Claims (1)

[Claims] 1. A paper feeding means for supplying a mount constituting a substrate, an applying means for applying an adhesive to the surface of the mount excluding a product storage area, and a drying means for drying the adhesive on the mount to a semi-dry state. And a bonding means for stacking a transparent synthetic resin thin film sealing material on the mount with an adhesive and thermocompression bonding, and a cutting means for cutting the mount after the bonding means according to the outer shape of the product case, A method of manufacturing a product case, characterized in that a flat base and a seal are adhered to each other on an outer periphery of a product storage space defined by the both.