JPS59124211A - Corner stretching packing method and un-former in device used for said method - 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 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 in the film, so that the storage capacity of the object to be packaged is large and the external shape is very small. The present invention relates to a packaging method of so-called square packaging, which is often used when packaging relatively high-quality Western confectionery and other products due to its high quality, and to an AN7-ohma especially developed for the packaging.

(Background Art) Conventionally, this type of square packaging has a corner part (31
(25, Enclose the article to be packaged (1) in a packaging bag (to) with <21 formed on both sides, and then close and seal the opening ■ of the packaging bag (to). Similar to other packaging methods, a continuous film is formed into a cylindrical shape using a former, and the item to be packaged is carried into the cylindrical film to automatically complete the entire packaging process. This was not possible because it was impossible to form corners on the film using a conventional former.

Therefore, in the past, when carrying out square packaging, the work of enclosing the items to be packaged into the packaging bag was almost entirely done manually, which was extremely inefficient and unhygienic. Furthermore, even if the enclosing work was 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 conventional problems,
It is possible to automate the entire series of packaging processes using packaging equipment without having to do any of the complicated packaging work that was done in the past, and as a result, the work efficiency can be dramatically improved compared to the past. An object of the present invention is to provide a completely new and useful square packaging method that can significantly reduce the cost of packaging operations, and a former in a packaging device used for the packaging.

(Technical Means) The present invention was constructed to achieve such an object, and the packaging means is configured such that a continuous film, which is polymerized in advance and gusseted on both sides, is rolled out into a flat shape, and then
While forming the film into a cylindrical shape using a former, the object to be packaged is conveyed into the film, and the object to be packaged is surrounded by the film.

Therefore, when an item is wrapped in a film using this method, the corners of the film that were previously polymerized and gusseted on both sides will be recreated. , so-called square packaging can be performed.

In addition, the structure of the unformer developed and constructed as a device for unfolding the continuous film formed by gusset molding of the packaging means into a flat shape is that the upper part (C) is opened and polymerized, and the both sides (11 , Gazette +21 to 111,
(The film (4) is placed above the transfer surface (8) located directly under the bottom (C) of the film (4) on which the film (21) is formed.
A guide body (9) is provided approximately parallel to the transfer surface (8) to form a gap 0 through which the bottom part (1) of the film +41 can be inserted. 2!
, (Guide body α is provided so as to be inclined upward as it advances forward to form a narrow space (4) into which 21 can be inserted.
D, both guide bodies (9), and side plates αη provided substantially perpendicularly to form gaps 64 on both sides of αυ through which both sides +11 and il+ of the film (4) can be inserted. , αZ, and the bottom (c) of the film (4) is connected to the gap (1) between the transfer surface (8) and the guide body (9).
0i, and move the upper part (c) of the film (4) above the guide body α, and then move the film (4) to the gazette l-+
21, (2+ is located largely in the area between the guide bodies (9) and (b), and the film (4) is transferred to the front of the unformer for use. As the film (4) is transported forward, the upper part (C) is forcibly guided upward by the guide body circle, and the film (4) is moved forward.
) formed by the gazette +21, +21 gradually becomes vertical, and finally the gazette) (2),
(The folding of the gusset 21 is completely released and unfolded. Therefore, next time, open the upper part (c) of the film (4) with the folded gusset released to the left and right and move it forward. Since the film (4) is guided in the lateral direction by the side plates αη and αi, the film (4) does not come off from the guide bodies (91, Qll) and moves in front of the side plates α and αZ. It is expanded into a flat shape.

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

First, in the square packaging method of the present invention, a continuous film that has been polymerized and gusseted in advance as described above is developed into a flat shape, and then, like other general packaging methods, a former is used to package the packaged item. Because of this, it is possible to wrap the supplied items in a film continuously, which is much more convenient than the conventional method of enclosing each item in individual packaging bags. It has excellent workability. Therefore, the work efficiency is excellent and the cost for the packaging work can be significantly reduced.

@ Also, since the unformer according to the present invention is capable of guiding each part of the polymerized and gusset-formed film using a plurality of guide bodies as described above, the film can be unfolded into a flat shape. By simply transporting the film, the film can be reliably spread into a flat shape. As a result, according to the unformer of the present invention, the work of developing the film into a flat shape can be carried out entirely automatically without using any human hands.

Furthermore, the unformer is composed of a plurality of guide bodies and side plates, does not use any power machinery, etc., and is extremely simple in construction, easy to manufacture, and inexpensive. be.

@Furthermore, the present invention can automate the entire series of packaging operations by performing square packaging using the packaging method according to the present invention using an unformer that automatically unfolds the film as described above. It is said that square packaging can be done.
This has a special effect that could not have been predicted in the past.

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

In this embodiment, as shown in FIG. 1, the upper part (C) is polymerized so that the center is open, and both sides! 11, (11 has a gazette) (21, (21 is formed, and the four corner parts (3) are polymerized and sealed using a relatively thick continuous vapor-deposited film (4). First, the film (4) previously formed in this way is developed into a flat shape.

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

That is, in Fig. 2, (7) indicates the base, and (8
) indicates the upper surface of the base, ie the transfer surface on which the film (4) is transferred. (9) indicates a flat guide body provided parallel to the transfer surface (8) to form a slight gap α[ above the transfer surface (8), and perpendicular to the front part of the guide body surface, which will be described later. It is fixed to the flat plate αG fixed to. Ql) indicates a flat guide body provided above the guide body (9) so as to be inclined upward as it advances forward; A letter-shaped support (
2) It is mounted and supported by L-shaped mounting brackets. The wires are the guide body (9) and the guide body (5).
It shows the space formed between.

αQ and αd indicate flat plates provided in the front portions of the guide bodies (9) and (B) in an extension line along the side surfaces of the guide bodies (9) and (6). The α force and αi are the vertical parts (to) and the vertical part (to) which is provided on the side of the base (7) to form a gap (2) between the guide bodies (9) and αB, and the folds inward. A side plate consisting of a bent portion α1 is shown, and the bent portion a
9 is bent so as to be parallel to the guide body αB to form a slight gap C37) above the guide body I, and the inside of the bent part a9 approaches the outside as it moves forward. A tapered surface Q]) is formed. Furthermore, a tapered surface (A) is formed in the front part of the vertical part (to) of the side plate α force, Q% so as to be inclined downward as it advances forward. (c), the door indicates an acrylic plate, and the side plate αη is the side plate αη.

Both guide bodies (91, C
It is installed along the LI).

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. The bottom part (c) of the film (4) is transferred to the gap 00) between the transfer surface (8) of the former (6) and the guide body (9), and the bottom part (c) of the film (4) is (Gazet of film (4) to the space part)
The upper part (c) of the film (4) is pushed through the film (4) to move the film (4) forward. As shown in the same figure (/N), the film (4) to be transferred is tilted upward as the guide direction advances forward.
The upper part (c) of the film (4) is forcibly guided upwards, resulting in a gusset) (21.

(2) gradually approaches the vertical state, and finally the gazette (2+, +21 becomes almost vertical, as shown in Figure A).
As shown in the figure, the upper part (c) of the film (4) can be easily brought into a completely open state, and the film (4) can be unfolded into a substantially completely flat state. still,
During the process, the film (4) located on the unformer (6) separates from the guide bodies (91, (11)) because side plates αη, α6 are provided on both sides of the film (4). There is nothing like it.

This embodiment uses an unformer (6) having the above-described structure and function, and the square packaging method will be explained below with reference to FIG. 4.

First, the film (4) is unwound from the roll body (5) on which the film (4) has been wound and transferred to the unformer (6), and the unformer (6) forms the film (4) as described above. The upper part (c) of the film is left open, and the film (4) is passed under a guide roll (e) arranged diagonally forward and downward. At that time, the film (4) immediately after passing through the unformer (6) has the side plate α force of the unformer (6), the tapered surface (A) and (C) of αi.
The film (4) develops in a fan-like shape along the lines shown in FIG. The corner portion (3) protrudes, and the fold (to) remains. Next, the film (4) developed into a planar shape in this manner is transferred via a predetermined guide roll (2) and transferred to a former screen, and the film (4) is formed into a cylindrical shape by the former (2). At that time, the packaged items (1
) is transported into the film (4), which is formed into a cylindrical shape by the former (41), and the packaged object (41) is carried through the opening 0υ of the film (41). The object to be packaged is completely surrounded with a film (4) and vertically sealed with a vertical sealer, and a horizontal sheet 5-4 is then applied between each of the enclosed objects (to) and (to). Thus, cutting and transverse sealing are performed, and the items to be packaged (7) are individually packaged in a completely hermetically sealed state.

As shown in Fig. 6, the package (to) wrapped by the above method has the corners (3) of the film (4) that were previously polymerized and formed into a gusset still present in the film (4). It is a so-called square package in which the body is formed into a substantially rectangular parallelepiped shape.

In addition, in the above embodiment, since a film whose corners are polymerized and sealed is used, it is necessary to reliably form the corners even after forming the film into a cylindrical shape using a former. It has the effect of However, the present invention is not limited to the film used as in the above embodiments, 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 wrapping film, and does not involve any method of cutting the film or horizontally sealing the film 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 unformer, in the above embodiment, the side plate is formed with a bent part or a tapered surface, and an acrylic plate or the like is attached to the inner surface, so that the film is accurately guided and the film is transported. Although this can be done very smoothly, these are not essential requirements; the point is that the side plate only needs to have a vertical portion. Furthermore, the shape of the guide body, the mounting means, and other configurations are not limited to the embodiments described above, and can be freely modified within the scope of the present invention.

It should be noted that the means for developing the polymerized and gusseted film into a flat shape in the packaging method according to the present invention is not limited to the use of the former according to the present invention.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional perspective view showing a film used in the present invention. FIG. 2 shows an embodiment of the unformer according to the present invention, (
A) is a plan view, middle) is a front view, and three birds (A - of mouth 1) are shown.
A-line enlarged end view. Figure 8 shows the state in which the unformer is used;
C-line end view. 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 expanded state of the film shown in FIG. 1. 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)...Unformer,
(8)...transport surface, f91, Qll・
...Guide body, (101...gap part, αη
, α6... side plate, kiln... in between, (c)
...Film bottom, ni)...Film top, ni)...former, 0 硲...part of the gap. Applicant Tokiwa Industries Co., Ltd. Agent Patent Attorney Noboru Fujimoto 11WA 2nd WA (A) 7 9 10 2017 12 A 18 15
12E 115 Figure 7E 0

Claims (1)

[Scope of Claims] (1) A continuous film, which has been polymerized in advance and has gusseted sides, is developed into a flat shape, and then the object to be packaged is placed inside the film while forming the film into a cylindrical shape using a former. 1. A method for square packaging, characterized in that the object to be packaged is surrounded by a film. (2) The upper part (c) is opened and polymerized, and both side parts (1
). The transfer surface (8
); a guide body (9) provided substantially parallel to the transfer surface (8) to form a gap αα through which the bottom (c) of the film (4) can be inserted; +21, (21) is provided above the gazette of the film (4), which is inclined upwardly as it advances forward to form a space in which the film (4) can be inserted, and both guide bodies (
9), both sides (1) of the film (4) on both sides of the α sword
1. An unformer characterized by comprising side plates αη and αi provided substantially vertically to form a gap part (1) and (33) through which the parts (1, tl) can be inserted.