JPS602463A - Multipack vessel and method of packing said vessel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-pack (multi-unit packaging) container sold at stores such as supermarkets and a packaging method thereof.

There are various possible reasons why multi-bag products are actively introduced into the market. For example, ■ The purchase amount per consumer can be increased on the sales and manufacturing sides.

■ The selling price per unit can be reduced.

■ Leads to reduction in packaging material costs.

■ It is designed to be easily placed on sales and display shelves, making it easy to load (and easy for consumers to view).

Conventionally, in the case of multi-puncture, it is common to first fill a container or a numbered bottle with the contents and then seal it by heat sealing or rolling it with aluminum foil or a cap.

Typical form-fill packaging methods include: (a) Place the container on a tray and wrap it in pillow or sleeve packaging with shrink film.

Of course, the above-mentioned tray is not used depending on the shape of the container.

(b) Clamp the sleeve packaging or flange part with a folding carton.

(c) There are packaging products made of synthetic resin, such as sheet molding or injection molding.

In addition, recently there are packaging machines that operate on a single process line, commonly known as F, F, S, (
FormFill 5eal) machine or F, S,
(F"orm 5eal ) (, iQ is gradually being introduced.

If you use this machine, if you purchase forming sheets (for containers and lids) from outside, you can produce the containers at your own factory, fill them with the contents, seal them, and then trim and half-cut them. It has the advantage of being able to produce multi-packed products after a long process. That is, the above (a) and (b)
There is no need for any work processes or extra materials like (c).

However, this machine is much more expensive than general packaging machines, so it cannot be purchased and used by any company.

Furthermore, since this machine is used as a special-purpose machine, we live in an age where consumer needs are diversifying and tastes are rapidly changing, so the product becomes unsaleable and must be disposed of before the equipment is fully depreciated. A situation arises.

Furthermore, since this machine has a narrow selection window for the material of the sheet to be used, there is a limit to the contents that can be filled, and it is difficult to reduce the cost of packaging materials by reducing the thickness of the sheet used, and it is also difficult to change the shape of the container. is not easy (it takes time to replace the mold used to form the container). In addition, in the series of steps, continuous sheets are conveyed one after another in an intermittent motion, so the lid material to be heat-sealed moves in the same manner until it is trimmed. Therefore, since the lid material is stretched, the material used is limited to aluminum foil. That is, if aluminum foil is not used, the design printed on the top surface of the lid material will shift in pitch due to stretching, resulting in increased loss.

Therefore, aluminum foil alone is expensive, so even if a plastic film is used to reduce costs, a minimum thickness of aluminum foil is required. That is, inexpensive plastic film alone cannot be used.

In addition, since a lid material with approximately the same width as the formed sheet width is required, the loss rate of the trimmed packaging material is approximately 30% when calculated from the final finished product, and the trimmed part is not covered with aluminum foil or sealed. Therefore, there is no choice but to dispose of the entire amount.

There are also pre-molded containers that are multi-bagged, but a point or spot is placed in advance near the midpoint of the container where two animals are connected.
Since the lid material is sealed on top of a line or cut, the lid material is sealed even if it is bent, making it difficult to separate, and even if the lid material is removed, the lid material will not be on the other side of the container. It seems that the lid material for two containers is peeled off at the same time.Since it is half-cut or inserted from the beginning of the cutting line Z, it is unstable, has poor mechanical suitability, and has drawbacks such as containers separating during transportation or when using a filling machine. Beg for it. Also, even if you use a lid with a dotted line drawn at the midpoint, it will not be possible to seal at the same position.

Furthermore, the cost of adding dotted lines or incisions will naturally be incurred.

In addition, since the size of the lid material is made larger than the container size in anticipation of displacement during the production of the lid material, it naturally protrudes from the outer periphery of the container, resulting in poor appearance due to misalignment during placement of the lid material.

The present application allows anyone to make the multi-bag format easily, simply, and at low cost; that is, there is no need for the multi-bag work in the post-process or the packaging materials necessary for it, and the above-mentioned F, F', S. This invention is designed to solve problems that occur when using a packaging machine.

Examples of this include a single layer sheet of thermoplastic resin such as polyethylene (PS), polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), or the above-mentioned products. For example, vinylidene chloride (which has oxygen barrier properties) based on
The container body (1) is formed by sheet-molding a multilayer sheet of PVDC) or ethylene vinyl alcohol copolymer sheets or films, or the container body (1) is made of a single-layer sheet or a thermoplastic resin as described above. k Injection molded, and two or more container bodies have a flush part (
2) They are connected together, and the space (3) in which the contents are filled is separated from each container body (1), and the flange portion where the lid (4) is sealed is on the same plane. Form the container body (1) so that it is on top.

The container body (1) of the present application can be manufactured using existing production equipment as is, and is supplied to a filling machine that fills the molded container body (1).

This container body (1) (pre-molded product, Pre-mol
d product) can be used to make multi-pack products using the following packaging machine.

An endless chain conveyor (5) for transporting packaged goods is provided with a hole (6) for fitting the container body (1), and a tenor (7) is pivotally mounted, and an appropriate drive device is used to intermittent A cup feeder (8) that can load several stages of container bodies (1) on the starting part of the horizontal conveyance of the chain conveyor (5) and drop them one by one.
), the content filling machine 02 is located next to the cup feeder (8), and the feeding device (9) for the lid material (4) wound into a roll is placed next to the filling machine (+21). established,
A cutter device (11) is installed at a position where only the heat sealer is conveyed to a position where the lid material (4) is fed out from the feeding device (9) and maintained horizontally, and a cutter device (11) is installed next to the cutter device 0υ. station 0 to form a series of packaging machines.

Next, to explain the packaging method, container bodies (1) are dropped one by one from a cup feeder (8) into the hole (6) of the retainer (7) of a chain conveyor (51) that moves intermittently. The filled container body (1) is then sent to the lower part of the filling machine 02, and the contents are sent out from the filling machine θ2 to fill the space (3) of the container body (1).The filled container body (1) is filled with the lid material (4). The container body (1) and the lid material (4) are sent to the lower part of the heat-sealing pan H in a polymerized state, and then heated. sealed,
After that, only the lid material (4) is cut by the cutter device 0υ, and then sent to the pre-trimming station 031, where the lid material (4) is cut from the inner periphery of the sealed container by 2 to 3 spaces from the outer periphery to the inside. A multi-pack product can be produced by trimming the container body (1) and at the same time inserting a half cant into the center line of the flange (2) of the connected container body (1) up to ~% of the sheet thickness.

Of course, other than the above method, for example, a method of transporting the container using a finger chain without using a retainer and inserting it into a metal pedestal at the part to be heat-sealed can also be used.

As shown in the above section, two or more containers are connected by a thermoplastic resin sheet or film at the flange portion, and the space filled with the contents is separated for each container, and the lid material is sealed. After molding a container body whose flange surfaces are on the same plane, the container body is sequentially sent to a filling machine and filled with the contents 7. After that, a lid material is heat-sealed onto the container body and the outer periphery of the container body is Within 2-3” lJ (In
A multi-pack container characterized by trimming with a cutting blade and at the same time half-cutting the center line of each connected flange part to % to % of the wall thickness, and a. Two or more thermoplastic resin sheets or films. A container main body is constructed in which the containers are connected in 7 runs and 9 parts, the space filled with the contents is separated for each container, and the flange part where the lid material is sealed is on the same plane. do.

Steps: b. Step of stacking container bodies in several stages and dropping the container bodies from a camp feeder that can be dropped one by one into a metal adhesive retainer; a step of heat-sealing the lid to the flange surface of the container body;
Trim the inner periphery of the inserted part with a cutting blade, and at the same time trim the center line of each connected flange part to % to % of the wall thickness)・-
This method of packaging a multi-pack container is characterized by the step of adding fukanodo, and has the following characteristics.

a. It can be molded with a wide width and a long feed pitch, so it can be produced in large quantities.

b. Since there is a wide range of materials to choose from, the contents to be filled can be changed in various ways, so there is flexibility in responding to the market.

Since the container is manufactured by a manufacturer specializing in C0 molding, we can manufacture containers with a beautiful appearance and uniform wall thickness, and we can also make the sheet thickness thinner.

d6 Scraps produced during molding can be returned, leading to a reduction in material costs.

In addition, since the container is trimmed after the lid material is sealed on the supplied container, there are various choices for the part to be wasted, such as a single plastic film, a single aluminum foil, or a composite product of aluminum foil and plastic film, depending on the contents. .

g. Since there is no pitch deviation of M material Fr, there is little loss.

After sealing the lid material, it is cut with a cutting blade, so it can be folded down and divided easily and reliably with both hands.

i. Packaging costs are low.

J. It is easy to handle the packaging material, the shape of the multi-bag can be easily changed (square, round, etc.), and it can be made into a simple rod with 2 or 4 pieces connected.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the manufacturing apparatus, FIGS. 2 and 3 are partially cutaway perspective views of the container body, and FIG. 4 is a partial perspective view of the conveyor. Patent applicant Kishimoto Sangyo Co., Ltd.

Claims (2)

[Claims] (1) A flange in which two or more containers are connected by a thermoplastic resin sheet or film at the flange portion, the space filled with the contents is separated for each container, and the lid material is sealed. After forming a container body whose parts are on the same plane, the container body is sequentially sent to a filling machine and filled with the contents, and then a lid material is heat-sealed onto the container body and 2 to 3 parts from the outer periphery of the container body are filled. A multi-pack container characterized in that the inner side of the sash is trimmed with a cutting blade and at the same time a half cut is made on the center line of each connected flange part to % to % of the wall thickness. (2) a. Two or more containers are connected by a thermoplastic resin sheet or film at their flanges, and the space filled with the contents is separated for each container, and the lid material is sealed. (b) stacking container bodies in several stages and dropping the container bodies from a cup feeder that can drop them one by one into a metal paste container; (d) Further, a step of intermittently conveying the retainer to the heat-sealing section and heat-sealing the lid to the flange surface of the container body; (e) Pressing the container body with the lid material heat-sealed) I
Send it to the J-mining section and apply 2 to 3 inwards from the outer periphery of the container body.
A method for packaging a multi-pack container, comprising the steps of trimming the inner periphery of the interlocking part with a cutting blade and at the same time making a half cut on the center line of each connected flange part to % to % of the wall thickness.