JPS5822410B2 - Method and device for manufacturing double packaging bags - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an inner bag body (
This invention relates to a method and apparatus for manufacturing a double packaging bag (so-called double pack), which is made by filling a so-called tea pack and packaging this inner bag inside an outer bag, and its purpose is to It is an object of the present invention to provide a manufacturing method and a manufacturing device with a simple structure that can simplify the manufacturing process and improve manufacturing efficiency.

Conventional methods for manufacturing double packaging bags include gluing both ends of a connecting wire (for example, yarn) to the inner bag filled with the contents and the photographic strip, or using a one-tooth needle. I stopped it,
Since the inner bag body is then loaded into the outer bag body, the manufacturing process is complicated and manufacturing efficiency is low.

Furthermore, the manufacturing apparatus also has drawbacks such as requiring a complicated structure for adhesive fixing or diagonal fixing of the connecting wire.

The present inventor has developed a conventional double packaging bag in which both ends of a connecting wire are glued or fastened to the inner bag body and the photographic strip, and then the inner bag body is loaded into the outer bag body. In view of the shortcomings of the manufacturing method and manufacturing equipment, as a result of many years of research and development, we have developed a technology that simultaneously seals the imaging wire when sealing the inner bag body, and also pulls out a part of the imaging wire to be used for imaging. Furthermore, they discovered that the conventional drawbacks could be improved by forming the outer bag body and the inner bag body at the same time, and also invented a manufacturing method with high manufacturing efficiency and a manufacturing device with a simple structure. A specific example of a packaging bag manufacturing method and apparatus will be described with reference to the accompanying drawings.

FIG. 1 is a front view showing an embodiment of the manufacturing apparatus of the present invention;
FIG. 2 is also a perspective view of the main parts.

In the figure, A is a packaging material for a strip-shaped outer bag body, and B is a packaging material for a strip-shaped inner bag body, which has sufficient air permeability and liquid permeability.

The manufacturing apparatus of the present invention in this embodiment includes a guide 1, a spread prevention guide 2, a wire feeding guide 3, a vertical seal (side edge seal) roller 4, and a wire drawer for shooting. It includes a means 5, a lateral seal (seal in the lateral direction) roller 6, a contents filling means 7, an outer bag side edge folding guide 8, and a cutting roller 9.

The guide 1 consists of a horseshoe-shaped guide plate 11 and double guide wires 12 and 13, and the outer wrapping material A is inserted between the double guide wires 12 and 13, while the inner wrapping material B is a guide plate 11 and a double guide wire 12,13. It is inserted between the plate 11 and the guide member 12, and the band-shaped outer packaging material A is continuously formed into a cylindrical shape while being shifted so that one edge is slightly longer than the other side edge. The packaging material B is continuously formed into a cylindrical shape in the cylindrical outer packaging material so that the packaging material B is positioned between the both side edges of the cylindrical outer packaging material A while aligning both side edges thereof.

The spread prevention guide 2 has a U-shape and is disposed directly above the vertical seal roller 4, and the guide 1 continuously forms a cylindrical outer packaging material A' and an inner cylindrical packaging material. This prevents the spread of B'.

The photographic wire feed guide 3 is disposed directly above the vertical seal roller 4, and uses a feeding mechanism (not shown) to feed the photographic wire C onto both side edges of the cylindrical inner packaging material B'. It is something that is sent in between.

The vertical seal roller 4 is disposed below the guide 1, the spread prevention guide 2, and the photographing wire feeding guide 3,
At the same time, one side edge of the cylindrical outer packaging material A and both side edges of the cylindrical inner packaging material B formed by the guide 1 are heat-sealed to form an outer cylindrical body A' and an inner cylindrical body B'. , the photographing wire C is sealed between both side edges of the inner cylindrical body B'.

The photographing wire pulling out means 5 is connected to the vertical seal roller 4.
It consists of a reciprocating arm 51 and a ring 52 fixed to the tip of the reciprocating arm 51 and passing through the imaging wire C.
1 by a reciprocating mechanism (not shown), a part of the photographic wire C that is sealed between both side edges of the inner cylinder B' by the vertical seal roller 4 is released to the outside. They are pulled out at approximately equal intervals.

The horizontal seal roller 6 is disposed below the vertical seal roller 4, and has concave portions 61 for forming bags and convex portions 62 for sealing alternately provided on its surface. Heat seal the outer cylindrical body A' and inner cylindrical body B', which have been made, in the lateral direction (horizontal direction) of the inner cylindrical bodies A' and B'.
The drawn-out portions E of the photographing wire C are arranged at equal intervals.
The outer bag body A" and the inner bag body B" are formed so as to have one outer bag body A and an inner bag body B.

The content filling means 7 includes a supply mechanism 71 for supplying a fixed amount of content, and a nozzle 72 extending from the supply mechanism 71 to above the horizontal seal roller 6, and is formed by the horizontal seal roller 6. The inner bag B'' is filled with a predetermined amount of contents.

The outer bag side edge folding guide 8 is a horizontal seal roller 6
It has a slit through which the outer bag body A" and the inner bag body B" can pass, one side of which is inclined, and one side edge of the outer bag body A formed by the horizontal seal roller 6. Fold the section onto the other side edge.

The cutting roller 9 is disposed below the folding guide 8 and cuts the outer bag body A" and the inner bag body B" at their lateral seal portions a and b.

Next, a method for manufacturing a double packaging bag of the present invention using the double packaging bag manufacturing apparatus of the present invention having the above-mentioned configuration will be explained.

First, a band-shaped outer bag packaging material A is continuously formed into a cylindrical shape by shifting the band-shaped outer bag packaging material A so that one edge is slightly longer than the other side edge, and a band-shaped inner bag packaging material B
is continuously formed into a cylindrical shape in the cylindrical outer packaging material A so as to be positioned between both side edges of the cylindrical outer packaging material A while aligning both side edges thereof.

Next, one side of the cylindrical outer packaging material A and both side edges of the cylindrical inner packaging material B are heat-sealed by a vertical sealing roller 4 to form an outer cylindrical body A' and an inner cylindrical body B', and at the same time, The photographing wire C from the photographing wire feeding guide 3 is sealed between both side edges of the inner cylindrical body B', and a part of the photographing wire C is pulled out by the photographing wire drawing means 5. Pull them out at approximately equal intervals.

Then, heat sealing is applied to the outer cylindrical body A' and the inner cylindrical body B' at equal intervals in the lateral direction (horizontal direction) of the inner cylindrical body A'+B', outside the core, using the horizontal sealing roller 6, and then the photographing is performed. The outer bag body A'' and the inner bag body B'' are formed so as to each have one pullout part E for the wire material C, and the contents are placed in the inner bag body B'' by the contents filling means 7. After filling a certain amount, one edge of the outer bag is folded onto the other edge using the folding guide 8.

A double packaging bag is manufactured by cutting the thus-formed outer and inner bag bodies A//, B'' at the heat-sealed portions a + b in the transverse direction (transverse direction) with a cutting roller 9.

FIGS. 5a to 5d are explanatory diagrams showing an example of the use of a double packaging bag manufactured by the method and apparatus for manufacturing a double packaging bag of the present invention.

Therefore, when using the above double packaging bag, first
Open one folded edge of ``b'', then open the front side of the outer bag body A'' C1, and then open the outer bag body A//, /,
By peeling off the inner bag body B'' from Δ, the inner bag body B'' can be used as a tea bag, etc. d.

As described above, in the method for manufacturing a double packaging bag of the present invention, when sealing the inner bag body, the photographing wire is simultaneously sealed and a part of the photographing wire is pulled out to be used for photographing. Moreover, since the outer bag body and the inner bag body are formed at the same time, it is not necessary to glue or fasten both ends of the connecting wire to the inner bag body and the photographic strip. death,
Furthermore, compared to the conventional method in which the inner bag is loaded into the outer bag, the manufacturing process is significantly simplified, and the manufacturing efficiency is significantly improved.

In addition, the double packaging bag manufacturing device of the present invention requires only the addition of a photographing wire feeding means and a photographing wire withdrawing means to a normal double-pack automatic filling and packaging machine, so that the conventional connection method is not required. It has advantages such as a simpler structure compared to those in which wires are glued or fixed.

Note that, as a matter of course, the method and apparatus for manufacturing a double packaging bag of the present invention are not limited to the above embodiments.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the double packaging bag of the present invention, Fig. 2 is a perspective view of the main parts, Figs. Figures 4a to 4C are explanatory diagrams showing the process of sealing and drawing out the photographic wire, and Figures 5a to
d is an explanatory view showing an example of use of a double packaging bag manufactured by the method and apparatus for manufacturing a double packaging bag of the present invention. A: Outer packaging material, B: Inner packaging material, A
'...Outer cylinder body, B/...Inner cylinder body, A''・
...Outer bag body, B''...Inner bag body, C...
...Wire rod for photography, D...Contents, E...
・・Drawer part for photographic wire, 1 ・・Guide,
3... Wire feeding guide for photography, 4...
Vertical sealing roller, 5...Measuring wire pulling out means, 6...Horizontal sealing roller, 7...Contents filling means, 8...Folding guide , 9...
...cutting roller.

Claims (1)

[Scope of Claims] 1. A packaging material for a band-shaped outer bag is continuously formed into a cylindrical shape while being shifted so that one side edge is slightly longer than the other side edge, and a packaging material for a band-shaped inner bag body is provided. is continuously formed into a cylindrical shape in the cylindrical outer packaging material so as to be positioned between both side edges of the cylindrical outer packaging material while aligning both side edges thereof,
One side of the cylindrical outer packaging material and both side edges of the cylindrical inner packaging material are heat-sealed to form an outer cylindrical body and an inner cylindrical body. At the same time, a part of the imaging wire is pulled out at approximately equal intervals, and heat seals are applied to the outer cylinder and the inner cylinder in the lateral direction (horizontal direction) of the inner cylinder. An outer bag body and an inner bag body are formed so as to have one pull-out portion for the photographing wire material at equal intervals in the direction (direction). One side edge of the outer bag body is folded onto the other side edge, and the thus formed outer and inner bag body is cut at the heat-sealed portion in the short direction (lateral direction) to produce a double packaging bag. A method for manufacturing a double packaging bag characterized by: 2 The packaging material for the band-shaped outer bag is continuously formed into a cylindrical shape by shifting the one side edge slightly longer than the other side edge, and the packaging material for the band-shaped inner bag is formed along both sides of the packaging material. a guide means that is continuously formed into a cylindrical shape in the cylindrical outer packaging material so as to be positioned between both side edges of the cylindrical outer packaging material while aligning the guide means; A photographic wire supply means for supplying a photographic wire between the sections, and a heat seal on one side edge of the cylindrical outer packaging material and both side edges of the cylindrical inner packaging material formed by the guide means. is applied to form an outer cylinder and an inner cylinder, and at the same time, a side edge sealing means seals the photographing wire between both side edges of the inner cylinder, and the side edge sealing means seals the inner cylinder. a means for pulling out a part of the photographing wire sealed between both side edges of the cylindrical body at approximately equal intervals; and an outer surface formed by the side edge sealing means. Heat seals are applied to the cylindrical body and the inner cylindrical body at equal intervals in the transverse direction (horizontal direction) of the inner cylindrical body, so that the outer bag body and the inner cylindrical body have one pullout portion for the imaging wire. a transverse direction (lateral direction) heat sealing means for forming a bag; a content filling means for filling a predetermined amount of contents into the inner bag formed by the transverse direction (lateral direction) heat sealing means; outer bag side edge folding means for folding one side edge of the outer bag formed by the transverse direction heat sealing means onto the other side edge; 1. An apparatus for manufacturing a double packaging bag, comprising: a cutting means for cutting at a heat-sealed portion in the transverse direction (horizontal direction).