JPH069891B2 - How to attach a hanging piece to a bag that has been made and has been stored - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method of attaching a hanging piece to a bag, which has been made and has been stored, for display and sale at a store. .

[Conventional technology]

BACKGROUND ART Conventionally, a bag made of a synthetic resin film is provided with a header portion reinforced with a thick synthetic resin sheet for convenient display in a hanging display of the bag, and a hanging hole is opened in the header portion is known. Is.

[Problems to be Solved by the Invention]

The above-mentioned known bag, when making a bag made of a synthetic resin film, aligns a thick synthetic resin sheet forming a header portion with the film in the process of being conveyed, and a side seal method or a pillow method, etc. Since each bag is manufactured by, the first bag is manufactured after an integrated process of bag manufacturing.

On the other hand, as a conventionally known bag, there is a bag which does not have a header portion reinforced by the thick synthetic resin sheet, and many of them have already been supplied. This bag is merely a bag made of a synthetic resin film by a side seal method, a pillow method, or the like.

Therefore, in such a bag having no header portion, since it is not provided with a hanging piece, it is not possible to expect the convenience of display sale by hanging like the above-mentioned bag having a hanging portion by the header portion. There is a problem.

In this respect, it is conceivable that in order to provide the header portion in the bag already manufactured, the synthetic resin sheet may be fixed to the bag after bag manufacturing.

However, when the header portion is provided for a bag that has already been made and has already been packed with goods, the bag is greatly inflated due to the packed goods, so various difficulties are encountered and these difficulties must be overcome. There are challenges.

[Means for Solving the Problems]

The present invention solves the above-mentioned problems, and when attaching a hanging piece as needed to an independent bag that has already been made into a bag and has already stored articles, the bag is inflated. The purpose of the present invention is to make it possible to attach a hanging piece to the bag without making it convenient for displaying and selling bags.

Therefore, the present invention is configured as a means of carrying a plurality of independent bags (1), which are made of synthetic resin film and have already been bag-manufactured and housed, in parallel with each other; And a step of conveying a hanging sheet (2) made of a thick synthetic resin sheet in the same direction as the bag conveying direction; along the upper part of the bag (1) and across a plurality of bags (1) A step of polymerizing the hanging sheet (2); by hanging the upper part of each bag (1) onto the hanging sheet (2), the hanging sheet (2)
A plurality of bags (1) are connected to each other with a space between them to form a goodwill-like body; after the goodwill-like bodies are formed, each bag (1) of the hanging sheet (2) is formed. A step of punching and forming a suspension part (11) at a portion corresponding to (1); a connection extension part (16) of a suspension sheet (2) extending across adjacent bag bodies (1) (1) Each bag (1) is divided by heat fusing for each bag.
A step of forming a hanging piece (13) attached to (1).

〔Example〕

 Embodiments of the present invention will be described in detail below with reference to the drawings.

(First Embodiment) In FIGS. 1 and 2, a plurality of independent bags 1 made of a synthetic resin film, which have been formed into a bag and have already been stored in an article, are conveyed in parallel at intervals ( Bag transfer process).

As in the above-mentioned known example, the bag 1 is a bag made of a synthetic resin film by a side seal method, a pillow method, or the like, and as shown in FIG. There is.

A suspending sheet 2 made of a thick synthetic resin sheet continuous in a strip shape is conveyed in the same direction as the bag 1 in a direction substantially parallel to the conveying direction of the bag 1 (suspension sheet conveying step).

These conveyors are provided by belt conveyors 3 arranged in parallel,
4 is performed.

That is, the bag 1 is held on the wide belt conveyor 3 by the positioning means 5 provided on the belt surface and is intermittently fed in the transport direction F.

On the other hand, the hanging sheet 2 is supplied from the delivery roll 6 via the tension roll 7 onto the narrow belt conveyor 4, and is held on the conveyor 3 by a positioning means (not shown) and intermittently in the transport direction F. Sent to you.

In the processes of the bag conveying process and the hanging sheet conveying process, the bag 1 and the hanging sheet 2 are polymerized so as to partially overlap each other. That is, within the space S between the pair of belt conveyors 3 and 4, one side edge of the hanging sheet 2 is polymerized along the upper portion of the bag 1 and across the plurality of bags 1 and 1 (polymerization step). ).

The bag 1 and the hanging sheet 2 conveyed in the above-mentioned polymerized state are
The welding rollers 8 arranged above and below corresponding to the space S,
It is sandwiched by 8 and continuously welded in the transport direction F to form a continuous welded portion 9 (welding step).

As a result, a hot-dip-shaped body is formed by connecting a plurality of bags 1 to the continuous suspending sheet 2 at intervals (warm-shaped material forming step).

Then, in the part corresponding to each bag 1 of the hanging seat 2,
The hanging hole 11 is punched by the punching fusing blade 10 (punching step).

That is, when the belt conveyors 3 and 4 which are intermittently fed are stopped, the punching fusing blade 10 penetrates the hanging sheet 2. Thus, the hanging hole 11 constitutes a hanging portion.

Then, between the adjacent bag bodies 1 and 1, the hanging sheets 2 are melt-cut by the fusing blades 15 along both side edges of each bag 1, so that the hanging sheets 2 correspond to the respective bags 1. It divides, the hanging piece 13 attached to the upper part of each bag 1 is formed, and the waste material 12 is discarded (dividing process).

That is, when the belt conveyors 3 and 4 that are intermittently fed are stopped, the fusing blade 15 performs fusing, and the portion of the hanging sheet 2 that is welded to the bag 1 remains as the hanging piece 13. On the other hand, the unnecessary portion is separated from the hanging piece 13.

Through the above steps, the bag 1 provided with the hanging piece 13 as shown in FIGS. 3 and 4 is obtained.

In this example, the bag conveying process-> suspending sheet conveying process-> polymerization process-> welding process (well-shaped material forming process)->
Although the order of the punching step to the dividing step is shown, the punching step is in no particular order with respect to the other steps, and it is free to switch the front and back with the other steps, or simultaneously perform the punching steps.

(Second Embodiment) In the second embodiment shown in FIG. 5, the carrying step, the hanging sheet carrying step, the polymerizing step, the welding step, and the curtain-shaped pair forming step are the same as those in the first embodiment.

In this second embodiment, the hanging sheet 2 that has undergone the welding process
Is a sheet for suspension 2 by an integrated fusing blade (not shown).
Is cut corresponding to each bag 1 to be cut (cutting step), and the fragment 14 fixed to the upper part of each bag 1 via the welding portion 9 is punched out in a hook shape (cutting step). . That is, when the belt conveyor that intermittently conveys the bag 1 and the hanging sheet 2 is stopped, the dividing step and the punching step are performed at the same time, and moreover, the hanging piece 13 attached to the upper portion of the bag 1.
Is formed in a hook shape in which a part of the annular hanging portion 11 is divided.

(Effects of Embodiment) According to the configuration of the above embodiment, the welding step (warm-shell shaped body forming step) is configured prior to the dividing step, so as shown in FIG. Sheet 2 with multiple bags 1,
A well-shaped material N is formed by connecting 1's at intervals.

By the way, as described above, the bag 1 is inflated because the product M is already stored, but is welded to the hanging sheet 2 via the welded portion 9 so as to be flat. . Therefore, the bag 1 exerts tension on the welded portion 9. As a result, the portion of the hanging sheet 2 corresponding to the width dimension of the bag 1 constitutes a strained area X which is inevitably deformed into a wavy shape under the tension.

Therefore, suppose that the bag 1 and the bag 1 are arranged close to each other with respect to the hanging sheet 2 (hereinafter, this structure is referred to as a comparative example). Since the sheet 2 is continuously distorted and deformed continuously in the longitudinal direction, when the hanging sheet 2 is fused by the fusing blade between the adjacent bags 1 and 1 in the subsequent dividing step,
Since the fusing is performed on the strain-deformed portion, the fusing line is unlikely to be in a straight line state, and there is a risk of forming a wavy fusing line due to the strain.

On the other hand, if a plurality of bags 1 are arranged at intervals and the connecting extension 16 is formed between the strained regions X of the hanging sheet 2 as in the above embodiment, A strain absorbing region Y is formed by the connecting extension 16. That is, the suspension sheet 2 as a whole gradually disperses and relaxes the strain deformation from the strain region X to the strain absorbing region Y.

Therefore, according to the structure of the root embodiment, when the hanging sheet 2 is melt-cut between the bags 1 and 1 in the cutting step,
Since the portion of the hanging sheet 2 that receives the fusing blade has a relatively small strain deformation as compared with the comparative example, it is possible to form a fusing line that is as close to a straight line as possible.

By the way, in the cutting step, it is preferable that the hanging sheet 2 is melt-cut in conformity with the side edge of the bag 1. It is difficult to exactly match.

Therefore, in the case of the comparative example, when the stop position of the intermittently conveyed hot-water curtain-shaped body N causes a slight error (positional shift) with respect to the fusing blade, the fusing blade is close to the welding portion 9 in the bag. There is a possibility that it will be located above 1 and will accidentally bite into the side edge of the bag 1 and melt the part of the bag 1.

On the other hand, according to the configuration in which the connecting extension 16 is formed in the hanging sheet 2 as in the above-described embodiment, the fusing blade is attached to the bag 1.
It is not necessary to exactly match the side edge of the
If it is located near 6 and along the side edge of the bag 1, by this, even if the stop position of the hot condensate body N causes a slight error (positional deviation) with respect to the fusing blade, it is erroneous. The side edge of the bag 1 will not be blown out. In other words, the connecting extension is 16 between the bags 1, 1 arranged at intervals.
Is extended, the thermal fusing can be performed in a wide range on the connection extension portion 16, and the error of the thermal fusing point can be allowed.
And, in the unlikely event that the fusing is performed with an error,
The hanging piece 13 formed by thermal fusing is formed to have a width dimension slightly wider than the width of the bag 1. However, the bag 1 is formed into a bag first, and the product M has already been stored and has a predetermined width. Since it is formed according to the dimensions, there is no practical problem.

〔The invention's effect〕

As a result of being configured as described above, the present invention has the following effects.

Since a retailer of goods can attach the hanging piece 13 to the independent bag which has been provided in the market and has been stored in the bag, the retailer of the product can attach the hanging piece 13 by itself, as necessary. It will be convenient to display and sell bags containing

That is, in general, a product packed in a bag is supplied to a retailer or the like in a state where the product is already made into a bag and the product is stored by selecting a bag in a product maker and packaging the product. Therefore, if the supplied bag 1 is not provided with the hanging piece 13, the form of the bag cannot be changed by itself even when the retailer or the like thinks that the bag is not suitable for display and sale. He was forced to accept the inconvenience.

In this regard, according to the present invention, if the retailer or the like is provided with a device that enables the method of the present invention, the retailer or the like implements the present invention as necessary to eliminate the inconvenient state. It is now possible to carry out desirable display sales.

When attaching the hanging piece 13 to the independent bag 1 which has been made into a bag and has already been stored with goods, the hanging sheet 2 made of a continuous belt-shaped synthetic resin sheet for a large number of bags 1 and 1.
Since the hanging pieces 13 that are fixed to each bag 1 are formed by polymerizing and fixing the same, they can be processed in large quantities and can be automated, and labor saving can be achieved even in mass retailers. However, it can be carried out easily.

A bag 1 that forms a pair of goodwill N by a welding process prior to the dividing process and is adjacent to the suspending sheet 2 with a space therebetween,
Since the connecting extension 16 that extends over the space between the two is provided: (1) Even when the hanging sheet causes a strained region X in which the hanging sheet is strained due to the tension of the bag 1 in which the articles are stored, the connecting extension is provided. Via the strain absorption region Y constituted by 16,
As a whole, the strain deformation can be dispersed and relaxed. Therefore, the fusing line of the hanging sheet 2 formed during the dividing step can be formed to be as straight as possible. As a result, there is an effect that the side edge of the hanging piece 13 in each divided bag 1 is finished beautifully.

(2) Furthermore, even if the stop position of the intermittently conveyed hot-water curtain-shaped body N is displaced due to an error, the error can be allowed through the connection extension portion 16, so It is possible to prevent not only the sheet 2 for melting but also the side edge of the bag 1 from being melted.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention, FIG. 2 is an explanatory view of steps of the same embodiment, FIG. 3 is a front view of a bag with hanging pieces obtained by the same embodiment, and FIG. FIG. 6 is a sectional view taken along line IV-IV in FIG. 3, FIG. 5 is a plan view showing a second embodiment of the present invention, and FIG.
The figure is a perspective view showing the operation of the present invention. DESCRIPTION OF SYMBOLS 1 ... Bag, 2 ... Hanging sheet, 9 ... Welding part, 11 ... Hanging part, 13 ... Hanging piece, 16 ... Connection extension part, M ... Commodity, N ...
Goodwill, X ... strain area, Y ... strain absorption area.

Claims (1)

[Claims] 1. A step of transporting a plurality of independent bags (1) made of synthetic resin film, which are bag-manufactured and contain articles, in parallel at intervals; from a belt-shaped continuous thick synthetic resin sheet And a step of conveying the hanging sheet (2) in the same direction as the bag conveying direction; a hanging sheet (2) along the upper part of the bag (1) and across a plurality of bags (1) A step of superimposing a plurality of bags (1) on the suspending sheet (2) by welding the upper part of each bag (1) to the suspending sheet (2) at intervals. And a step of forming a hanging part (11) at a portion corresponding to each bag (1) of the hanging sheet (2) after forming the hot-drenched-shaped body. Each of which is formed by dividing the connecting extension portion (16) of the suspending sheet (2) extending across the adjacent bag bodies (1) (1) by thermal fusion cutting corresponding to each bag (1). Attach the hanging piece (13) attached to the bag (1). Lower piece attached methods suspended in bag making pre and article storing pre bag, characterized in that it consists of: a step of forming.