JPS6254684B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, an object to be packaged is surrounded by a film that has a substantially rectangular parallelepiped shape with corners formed on the film, which has a large storage capacity for the object to be packaged, and has a very good external shape. The present invention relates to a packaging method of so-called square packaging, which is often used when packaging products such as relatively high-quality Western confectionery due to its high quality, and an anformer developed especially for the packaging.

(Background Art) Conventionally, in this type of square packaging, as shown in FIG. 7, an object to be packaged 30 is enclosed in a packaging bag 33 that has a corner 3' and gussets 2', 2' on both sides. Then, the opening 34 of the packaging bag 33 was closed and sealed, and like other packaging methods, a continuous film was formed into a cylindrical shape using a former, and the inside of the cylindrical film was sealed. It has not been possible to automatically carry out the entire packaging process by carrying the item to be packaged into the film because it is impossible to form corners on the film using a conventional former.

Therefore, conventionally when performing square packaging,
The work of enclosing the items to be packaged into packaging bags is almost entirely done manually, which is extremely inefficient and unhygienic. Furthermore, even if the enclosing work was to be carried out using a mechanical device, the work process was complicated, the structure of the device was very complicated, the device was expensive, and the work efficiency was not that good. As described above, in any conventional packaging method, using a packaging bag with molded corners and gussets and enclosing the packaged item into the packaging bag is a very complicated task. However, there were problems in that the work efficiency was very poor, productivity was poor, and the cost required for packaging work was large.

(Problem to be solved/Technical objective) The present invention aims to solve the above-mentioned problems of the conventional art, and without performing any complicated packaging work as in the past, the entire series of packaging processes is automated using a packaging device. A completely new and useful square packaging method that can dramatically improve work efficiency and significantly reduce packaging costs compared to conventional methods. An object of the present invention is to provide an informer in a packaging device used for packaging.

(Technical Means) The present invention is configured to achieve such an object, and the gist of the configuration of the packaging means is as follows:
5 is opened and polymerized, and gussets 2, 2 are formed on both sides 1, 1.
5 and the bottom part 24 are arranged along guide bodies 9 and 11 which are arranged vertically in parallel at the transfer position of the film 4, and at least one of which is set in an inclined shape so that the vertical distance between them becomes larger toward the front side. The film 4 is transferred forward in this state to increase the rising dimension of both side parts 1, 1 of the film 4, and the outer surface parts of the both side parts 1, 1 of the film 4 to be transferred along the guide bodies 9, 11 are separately removed. The film 4 is developed into a flat shape by being supported by the side plates 17 and 17', and then the film 4 is continuously formed into a cylindrical shape by the former 28 while the packaged object 30 is conveyed into the film 4. , the object to be packaged 30 is surrounded by the film 4.

Therefore, when a packaged item is wrapped in a film using such a method, the corners of the film in the packaged state, which were previously polymerized and gusseted on both sides, are newly reproduced. Therefore, so-called square packaging can be performed.

Furthermore, the structure of the unformer developed and constructed as a device for unfolding the continuous film formed by gusseting of the packaging means into a flat shape is as follows.
5 is opened and polymerized, and gussets 2, 2 are formed on both sides 1, 1 of the bottom part 2 of the film 4.
A guide body 9 is provided approximately parallel to the transfer surface 8 to form a gap 10 through which the bottom portion 24 of the film 4 can be inserted above the transfer surface 8 located directly below the film 4; a guide body 11 that is provided to form a space 20 into which the gussets 2, 2 of the film 4 can be inserted, and is inclined upward toward the front side;
Gap portions 32, 32 on both sides of the guide bodies 9, 11 through which both side portions 1, 1 of the film 4 can be inserted.
A side plate 17,1 provided substantially vertically to form a
7', the bottom part 24 of the film 4 is placed into the gap 10 between the transfer surface 8 and the guide body 9, the top part 25 of the film 4 is placed above the guide body 11, and the film 4 is passed through the gusset. 2 and 2 are respectively positioned in the space 20 between the guide bodies 9 and 11,
The film 4 is used by being transferred to the front of the unformer using a known film pulling means provided in the packaging machine. Therefore, as the film 4 transferred in this manner advances forward, the upper part 25 is forcibly guided upward by the guide body 11, and the gusset formed on the film 4 accordingly. The gussets 2, 2 gradually become vertical, and finally the gusset folding of the gussets 2, 2 is completely released and unfolded. Therefore, when the upper part 25 of the film 4 whose gusset folding has been released is opened to the left and right and transported forward, the film 4 is guided in the lateral direction by the side plates 17 and 17', The film 4 is unfolded into a flat shape in front of the side plates 17, 17' without coming off the guide bodies 9, 11.

(Effects) Since the present invention is configured as described above, it has the following effects.

○B First, in the square packaging method of the present invention, after a continuous film that has been polymerized and gusseted in advance is developed into a flat shape as described above, a former is used as in other general packaging methods to wrap the packaged item. Since packaging can be performed, the supplied items can be wrapped continuously in film, compared to the conventional method of enclosing each item in individual packaging bags. It has extremely excellent workability. Therefore, the work efficiency is excellent and the cost of the packaging work can be significantly reduced.

Particularly, the present invention is a means for unfolding a film in a gusseted state into a flat shape by transporting the upper and lower portions of the film along a guide plate whose vertical distance becomes larger toward the front. Since the rising dimensions of both sides are increased and the gazette is erased, the both sides are separately supported by side plates and transferred, so that the work of unfolding these films into a flat state does not require any manual labor. In addition, it can be performed reliably and smoothly without using any other power machinery, and the workability is very good and the equipment configuration can be simplified, and the entire series of work processes can be automated. It has also come to have the special effect of being able to do so.

○C Furthermore, the amformer according to the present invention is composed of a plurality of guide bodies and side plates, does not use any power machinery, etc., and has a very simple construction, making it easy and inexpensive to manufacture. It is something.

(Example) Hereinafter, embodiments of the present invention will be described according to an example shown in the drawings.

As shown in FIG.
The gussets 2, 2 are formed, and the four corners 3 are polymerized and sealed using a relatively thick continuous vapor-deposited film 4. First, the film 4 formed in this way is It is expanded into a plane.

At that time, the amformer according to the present invention is used, and the configuration of the amformer will be explained first.

That is, in Fig. 2, 7 indicates the base,
Reference numeral 8 indicates the upper surface of the base, that is, the transfer surface on which the film 4 is transferred. Reference numeral 9 indicates a flat plate-shaped guide body provided parallel to the transfer surface 8 to form a slight gap 10 above the transfer surface 8, and a flat plate 15 fixed perpendicularly to the front part of the guide body 11, which will be described later. It becomes stuck. Reference numeral 11 denotes a flat plate-shaped guide body provided above the guide body 9 so as to be inclined upward as it advances forward. It is mounted and supported by a support 12 and L-shaped mounting fittings 13 and 14. 2
0 indicates a space formed between the guide body 9 and the guide body 11. 16, 16' are the guide bodies 9, 11 at the front of the guide bodies 9, 11;
It shows a flat plate installed in the form of an extension along the side of the 1
7 and 17' are vertical portions 18 which are provided on the sides of the base 7 to form gaps 32 and 32 between the guide bodies 9 and 11, and bent portions 19 which are bent inward. The bent part 19 is bent parallel to the guide body 11 to form a slight gap 37 above the guide body 11, and the bent part 19 is The inner side is formed with a tapered surface 21 that approaches the outer side as it goes forward. Furthermore, a tapered surface 22 is formed at the front of the vertical portion 18 of the side plates 17, 17' so as to be inclined downward as it advances forward. 23, 23'
1 shows an acrylic plate, which is attached to the inside of the vertical portion 18 of the side plates 17, 17' along the guide bodies 9, 11.

Next, we will explain the method and operation of developing the film 4 into a flat shape using the unformer 6 having the above configuration. First, as shown in FIGS. the bottom part 24 of the film 4 into the gap 10 between the guide body 9 and the guide body 11, the gussets 2, 2 of the film 4 into the space 20 between the guide body 9 and the guide body 11, and the guide body 11 and the side plates 17, 17'. Gap portion 3 between bent portions 19, 19 of
The upper part 25 of the film 4 is inserted into each of the holes 7 and 7 to transport the film 4 forward. The film 4 to be transferred is inclined upward as the guide body 11 moves forward, as shown in FIG. . The upper part 25 can be easily completely opened, and the film 4 can be unfolded into a substantially completely flat state. Incidentally, at this time, the film 4 located in the unformer 6 is
Since the side plates 17, 17' are provided on both sides of the guide bodies 9, 11, there is no possibility that the guide bodies 9, 11 will separate from the guide bodies 9, 11.

The present embodiment uses the amformer 6 having the above-mentioned structure and function, and the square wrapping method will be explained below with reference to FIG. 4.

First, the film 4 is unwound from the winder 5 on which the film 4 has been wound and transferred to the informer 6. The informer 6 leaves the upper part 25 of the film 4 open as described above. It passes under the guide roll 26 arranged diagonally forward and downward. At this time, the film 4 immediately after passing through the amformer 6 is exposed to the tapered surfaces 22 of the side plates 17, 17' of the amformer 6,
22, and the roll 2
As shown in FIG. 5, after the point where the film 4 contacts the film 6, the film 4 is in a substantially completely flat state, with the corner portion 3 that was sealed during the overlapping protruding downward, and the fold 35 remains. That's what I'm doing. Next, the film 4 developed into a flat shape in this manner is transferred through a predetermined guide roll 27 to form a former 28.
The film 4 is transferred to the film 4 by the former 28.
is formed into a cylindrical shape. At that time, the packaged items 30 are transported by a conveyor 29 provided behind the former 28.
The object to be packaged 30 is carried into the inside of the film 4 formed into a cylindrical shape by the former 28 through the opening 31 of the film 4. After that, the packaged object 30 is completely surrounded with the film 4 and vertically sealed with a vertical sealer,
Further, a horizontal sealer performs cutting and horizontal sealing between each of the enclosed objects 30, 30, so that the objects 30 are individually packaged in a completely hermetically sealed state.

As shown in FIG. 6, the package 36 wrapped by the above method has the corner portions 3 of the film 4 which were previously polymerized and formed into a gusset still present in the film 4, and the body portion. This is a so-called square package formed into a substantially rectangular parallelepiped shape.

In the above embodiment, since a film is used in which the corners are polymerized and sealed, the corners are reliably formed even after the film is formed into a cylindrical shape using a former. There is an effect that can be done. However, the present invention is not limited to the film used in this embodiment, and if a hard film is used, the corners will be sufficiently formed during packaging even if the corners are not sealed. It is. However, it is preferable to use one whose corners are sealed.

Furthermore, the present invention relates to square packaging in which corners are formed on the film to be packaged, and does not at all ask the method of cutting the film or lateral sealing after surrounding the packaged object with the film. .

Furthermore, the packaging method according to the present invention is not limited to the use of the packaging device configured as in the above embodiment, and the configuration of the device used is not limited at all.

Furthermore, regarding the amformer, in the above embodiment, the side plate has a bent part and a tapered surface, and an acrylic plate or the like is attached to the inner surface, so that the film can be guided accurately and the film can be transferred very easily. However, these are not essential requirements, and the point is that the side plate only needs to have a vertical portion. Furthermore, the shape of the guide body, the attachment means, and all other configurations are not limited to the embodiments described above, and can be freely modified within the scope of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional perspective view showing a film used in the present invention. FIG. 2 shows an embodiment of the amformer according to the present invention, in which A is a plan view, B is a front view, and C is an enlarged end view taken along line A--A of B. Figure 3 shows the state of use of the Amformer, where A is a perspective view and B is B-B of A.
C is an end view taken along line C--C. FIG. 4 is a schematic front view showing a packaging device used in the packaging method according to the present invention. FIG. 5 is a cross-sectional perspective view showing the film shown in FIG. 1 in an unfolded state. FIG. 6 is a perspective view showing a package packaged by the packaging method according to the present invention. FIG. 7 is a reference perspective view showing a conventional packaging method. 1... Side part, 2... Gazette, 4... Film, 6...
Anformer, 8... Transfer surface, 9, 11... Guide body, 10... Gap portion, 17, 17'... Side plate, 20...
Space, 24...Film bottom, 25...Film top, 28...Former, 32...Gap.

Claims (1)

[Claims] 1. The upper part 25 and the bottom part 24 of the film 4, which is polymerized with the upper part 25 opened and the gussets 2, 2 are formed on both side parts 1, 1, are moved vertically to the transfer position of the film 4. Both sides 1 of the film 4 are transferred forward along guide bodies 9 and 11 which are arranged side by side and have a vertical interval larger toward the front, at least one of which is set in an inclined shape. .
The film 4 is expanded into a flat shape by being supported by the former 7', and then the film 4 is continuously formed into a cylindrical shape by the former 28 while the packaged object 3 is expanded.
0 into the film 4, and the packaged object 3
2. A square packaging method characterized by surrounding the film 4 with the film 4. 2. An unformer for a packaging machine for forming a film 4 into a predetermined shape, which is polymerized with an open upper part 25 and has gussets 2, 2 formed on both sides 1, 1, and is transferred. A guide body 9 is provided substantially parallel to the transfer surface 8 to form a gap 10 through which the bottom portion 24 of the film 4 can be inserted above the transfer surface 8 located directly below the bottom portion 24 of the film 4; A space 20 above the guide body 9 through which the gussets 2, 2 of the film 4 can be inserted.
a guide body 11 which is provided to form a guide body and is inclined upwardly toward the front side in the feeding direction of the film 4;
and gaps 32 and 3 on both sides of the guide bodies 9 and 11 through which both sides 1 and 1 of the film 4 can be inserted.
side plate 1 provided substantially vertically to form a side plate 2;
7,17'.