JPH02233376A - Packaged and its forming method - Google Patents

Abstract

PURPOSE:To form a package capable of being displayed in a upright state by folding bag material at both edges while it is traveling, heat sealing the folded edges and placing articles in the bag material which is then heat sealed during gusset forming period and cutting the heat sealed part thereof. CONSTITUTION:In a bag forming machine 8, a strip of bag forming material P is advanced along the inner surface of a square tubular member 9 having a slit 9a provided at its bottom in the bag material traveling direction and the edges of the bag materials 1a and 1b are folded inwardly toward each other and projected downwardly beyond the slit so as to be heat sealed together and then supplied intermittently into the subsequent gazette forming part 12. The upper and lower folded parts of the bag material P are held between holding members 14 and 15 with a push guide 13 disposed therebetween in order to form a gusset 1c, with a predetermined amount of articles B to be received placed on the bag material P by a supply member 11. In this condition, the folded bag materials P are heat sealed by a heat sealer 16 perpendicularly to its traveling direction and cut by a hot cutter 17, whereby a package 1 capable of being placed in a upright position can be obtained.

Description

[Detailed description of the invention] Industrial application field> The present invention relates to a package and a method for manufacturing the same, and more specifically, the present invention relates to a package containing udon noodles, soba noodles, powder foods, candy, etc. in a bag that does not stand up on its own. The present invention relates to a package that can display a difficult-to-use package in an upright position, and a method for manufacturing the same.

BACKGROUND OF THE INVENTION Traditionally, foodstuffs, etc., have been stored and displayed in pillow-type bags with both ends sealed by heat-sealing, etc., in food departments such as markets and supermarkets. . In general, such a package is produced by supplying stored items by intermittently running a belt-shaped bag material, folding the bag material, joining the edges along the running direction, and then folding the bag material back together. It is made by sequentially heat-sealing and cutting the bag material into predetermined widths in a direction intersecting the running direction. According to this package, since the stored items are supplied during the bag making process, it can be manufactured efficiently and the price is relatively low. However, since it is difficult to stand up the package, it is necessary to display it lying down. Therefore,
The package spreads wide and is difficult to grasp. In addition, the display position is limited because the bag must be placed at a position considerably lower than eye level so that the contents of the bag, product name, etc. can be clearly seen.

For this reason, packaging bags that can stand up and have square bottoms have conventionally been provided. In such a packaging bag, one end of a blow-molded hollow bag member is formed into a square bottom.

Problems to be Solved by the Invention However, in such a package, the bottom part must be folded into a rectangular shape and each folded piece must be joined, which increases the cost due to the increase in the number of steps. There is an inconvenience that the price of the bag making device increases.

In addition, regarding storing items in the storage bag,
After opening one bag and filling it with the stored items, it is necessary to seal the opening, which separates the bag making process and the filling process of the stored items, resulting in extremely inefficient packaging. was.

This invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a stand-up package that can be manufactured at a low price and also has a low cost device. A further object of the present invention is to provide a method for efficiently manufacturing the above package.

Means for Solving the Problems> The packaging body of the present invention for achieving the above object has a joint portion in which the edges of a bag material made of a thermoplastic resin film or a sheet material are joined together by heat fusion. The stored items are stored in a pillow-type storage bag having both side edges heat-sealed in a direction intersecting the joint, and a bottom with a gusset provided in parallel with the joint. .

In addition, in the method for manufacturing a package of the present invention, a bag made of a thermoplastic resin film or sheet 1 in the form of a belt is folded back while running, and the edges along the running direction are brought into contact with each other. After heat-sealing and seaming the edges of the bag materials that have been brought into contact, a gusset is formed on the folded part of the bag material,
At the same time as supplying the stored items at a predetermined time during the above process, the folded bag material is sequentially heat-sealed at a predetermined width in a direction intersecting the running direction, and the heat-sealing is performed simultaneously with or after this heat-sealing. This is to cut the fitting part.

Effect> According to the package of the present invention, the package can be made to stand up using the gusset provided at the bottom of the storage bag.

Further, according to the method for producing a package of the present invention, after the edges of the belt-shaped bag material are spliced together while running, a gusset is formed on the folded part of the bag material, and at a predetermined time during the above process. Since we supply storage items, we also handle the manufacturing process of storage bags,
The process of supplying the stored items to the storage bag can be performed at the same time.

Embodiments Hereinafter, embodiments will be described in detail with reference to the accompanying drawings showing examples. FIG. 1 is a perspective view showing the upright state of the package according to the present invention, FIG. 2(a) is a perspective view of the package immediately before the stored items are hermetically sealed, and FIG. It is a diagram.

In FIGS. 1 and 2, the package of the present invention stores items (B) such as tsuton, soba, etc. in a pillow-type storage bag (1).

The storage bag (1) is made of a bag element H (P) made of a non-foamed thermoplastic resin film or sheet, typically made of polyethylene, polypropylene, vinyl chloride, or the like. This storage bag (1) has a joint (2) in which the bag material (P) is folded inward by a predetermined width and the edges (1a) and (1b) of the bag material (P) are joined together by heat fusion. , Tsugibe (
2) Both side edges (1d) heat-sealed in a direction intersecting with
(le) and a gusset (IC) in parallel with the above joint (2).
(3) (see Figure 3). The gusset (1c) is formed in a size that allows it to stand up while storing the storage bag (1) or the stored item (B).

Therefore, in the package having the above structure, the bottom of the storage bag (1) (
The gusset (1c) provided in 3) allows it to stand upright. Moreover, it has the advantage that the upper part of the storage bag (1) can be easily grasped, making it convenient to handle.

FIG. 4 shows a method of manufacturing the above package using a horizontal pillow packaging machine.

In the same figure, the belt-shaped bag material (P) is held with a pinch roller (7
) (7) and let it out by intermittent running from the unwinding (4), and a plurality of guide rollers (5) (6
), and is fed to the bag making machine (8) which follows the guide roller (6).

In the bag-making device (8), the supplied bag material (P) is passed through a square tube-shaped cylinder member (9) having a slit (9a) along the running direction at the bottom (see Fig. 5). ), along the inner surface of the cylindrical member (9), the edges (la) and (lb) along the running direction of the bag material' (P) are sequentially bent inward and brought into contact with each other, and the edges ( la) (lb)
They are made to protrude downward from the slit (9a) in a polymerized state. Next, the above-mentioned edges (la) and (lb) were sandwiched between the rotary sealers (10a) and (10b) of the center seal part (10) at the lower part of the cylindrical member (9), and heat-sealed and joined together. After that, the bag material (P) is intermittently fed to the subsequent gusset forming section (12>).

As shown in FIG. 6, the case 1/forming part (12) includes a push guide (13) for pushing inward a part of the folded part of the bag material 4,t (P), and a push guide (13) for pushing inward a part of the folded part of the bag material 4,t (P). ) are placed opposite each other with the holding parts '(14) and (15) in between.
) folded part into two layers, upper and lower, and gusset h(lc)
form.

In addition, at a predetermined time during the above process, the feeding part shrine (11)
A predetermined amount of stored items (B) is added to the bag material tJ' (P
).

In this state, the bag element +g'< p) is sequentially fed to the subsequent heat sealing part (16) and the heating cutter (17) installed adjacent to this heat sealing part (16), and the heat sealing part ( 1
In step 6), the folded bag material '<p> is successively heat-sealed in a predetermined width in a direction intersecting the running direction. That is,
The positions corresponding to both side edges (ld) (1.e) of the storage bag (1) are heat-sealed. Then, if the central part of the heat-sealed part of the bag material (P) is cut by a heating cutter (17),
A package that can stand up can be obtained using the above-mentioned gusset (Lc).

In this way, according to this packaging manufacturing method, the storage bag (
The manufacturing process 1), that is, the bag making process, and the process of supplying the stored items (B) to the storage bag (1) can be performed simultaneously.

Further, in the above embodiments, the case where the present invention is applied to a horizontal pillow packaging machine has been described, but the present invention can also be suitably applied to a vertical pillow packaging machine.

In addition, as for the cutting method for each bag, a knife cutting method should be used instead of fusing, and in addition to cutting after the fact as mentioned above, heat sealing parts (] 6 ) Various methods can be employed, such as simultaneously cutting and heat-sealing along the edges.

<Effects of the Invention> As described above, in the packaging body of the present invention, only the gusset 1 that allows the packaging body to stand up is provided at the bottom part parallel to the joint part of the bag material, so there is no need to increase the number of steps. It can be easily manufactured using an existing pillow packaging machine without causing problems, and the price can be reduced, and the price of the bag making apparatus can also be reduced.

Further, according to the method for manufacturing a package of the present invention, the process of manufacturing the storage bag and the process of supplying the stored items to the storage bag can be performed simultaneously, and the process of manufacturing the storage bag and the process of supplying the stored items to the storage bag can be performed simultaneously, and the process of manufacturing the storage bag and the process of supplying the stored items to the storage bag can be performed simultaneously. This has the unique effect of making it possible to efficiently manufacture packages.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the upright state of the package according to the present invention, FIG. 2 (a) is a perspective view of the package immediately before the stored items are hermetically sealed, FIG. 3 is a side view, FIG. 4 is a front view showing an outline of the manufacturing process of the package, FIG. 5 is a sectional view of the main part of the bag making device, and FIG. 6 is a sectional view of the main part of the gusset forming section. (1)...Storage bag, (la) (lb).
... Edge, (IC) ... Gazette, (ld) (
]. e)...both side edges, (2)...junction,
(B)...Stored items, (P)...Bag material. Niso 0! &m 〜１＼ノ１子＼／ν

Claims (1)

[Claims] 1. From thermoplastic resin film or sheet The edges of the bag material are bonded together by heat fusion. The joined joint and the direction that intersects the joint Both side edges heat-sealed in the direction and the above joint part and a bottom with parallel gussets. Store your items in a pillow-type storage bag. A packaging body characterized by: 2. Band-shaped thermoplastic resin film or sheet While running the bag material made of Then, the edges along the running direction the edges of the bag material that are in contact with each other. After heat-sealing the parts and piecing them together, the bag is made. A gusset is formed on the folded part of the material, Supply the stored items at the specified time during the above process. At the same time, run the folded bag material above. Sequential heating in a predetermined width in the direction that intersects the At the same time or after this heat fusion, The method is characterized by cutting the heat-fused part. A method for manufacturing a package.