JP3413506B2 - Packaging bag, method of opening packaging bag, and packaging device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag having two independent storage portions, a bag mouth opening method for sequentially loading a filler into each storage portion of the packaging bag, and a packaging bag bag. The present invention relates to a packaging device provided with opening means for opening a mouth.

[0002]

2. Description of the Related Art For example, as a packaging bag for simultaneously storing two kinds of filling materials such as "noodle soy sauce" and "noodles", FIG.
There is known a packaging bag 1 having two storage parts as shown in FIG. That is, the packaging bag 1 is a flexible packaging bag in which the split film 4 is interposed between the two outer films 2 and 3, and the side edges 5 and the bottom edge 6 are welded and sealed while leaving the opening edges thereof. The bag mouth formed by the outer films 2 and 3 is divided by the divided film 4, and the inside of the bag is divided into two independent storage portions 7 and 8 by the divided film 4.

In such a packaging bag 1, it is difficult to automate the opening of the bag mouth and the filling of the filling bag. Up to now, the packings 9 (noodle soup base) and the packings are placed in the respective storage sections 7 and 8. 1
When 0 (noodle) is added, the divided film 4 is manually added.
To the outer surface film 2 or 3 to open the bag mouth, separately insert the filler 9 or 10 into each of the storage portions 7 and 8, and subsequently weld the opening edge portion 11 by welding as shown in FIG. However, there is a problem in that workability is poor and production capacity is small because it depends on human labor.

On the other hand, in Japanese Unexamined Patent Publication (Kokai) No. 5-338606, a packaging film is formed into a tubular shape by using a forming plate, and both side edges of the packaging film are polymerized in such a manner that they are interleaved with each other to form two storage portions in the packaging film. There is described a vertical bag-making type packaging method and apparatus in which the noodle soup base and the noodles are automatically and separately charged into the respective storage portions. However, since this is a bag-making method that uses a forming plate, it is only a single-purpose machine that corresponds to a specific shape and specific size packaging bag called a pillow bag, and it is a packaging bag of various shapes and sizes. Does not correspond to.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it is possible to automatically insert a filling material into each storage portion of a packaging bag having two storage portions. And to make it possible for a wide variety of forms and sizes of packaging bags.

[0006]

In order to achieve the above object, a packaging bag according to the present invention is provided between a pair of outer surface films opposed to each other to divide a bag mouth formed by both films, and It is a packaging bag provided with a dividing film that divides the inside of the bag into two storage portions, and is characterized in that a suction hole is formed at each opening edge portion of a pair of outer surface films.

[0007] More specifically, in the packaging bag, more specifically, the edges of both outer surface films are welded and sealed leaving the opening edges, and further, both side edges and bottom edges of the split film are outer surface films. Being welded and sealed together with
Both side edges of the split film are welded and sealed together with both side edges of both outer surface films, and the bottom edge of the split film is welded and sealed to the side surface of one of the outer surface films, or both sides of the split film. The edge portion and the bottom edge portion are welded and sealed to the side surface of either one of the outer surface films.

Another packaging bag according to the present invention is provided with a bag-shaped dividing film interposed between a pair of facing outer films to divide the inside of the bag into two accommodating portions, and the bag-shaped dividing film. An opening edge portion of one of the films facing the outer surface film is welded to the opening edge portion of the one outer surface film, and a suction hole is formed in the welded opening edge portion and the opening edge portion of the other outer surface film. It is characterized by being formed.

[0009] More specifically, in the above-mentioned packaging bag, more specifically, the edges of both outer surface films are welded and sealed leaving the opening edges, and the split film is made of a single film bent at the bottom. , Both edges of which are welded and sealed together with both edges of the outer film,
It is characterized in that the divided film is composed of two films, and both side edge portions and a bottom edge portion are welded and sealed.

In any of the above packaging bags, one suction hole may be formed in each opening edge portion, or a plurality of suction holes may be formed in each opening edge portion, for example, two to three suction holes. It may be formed in a combination of one at the opening edge and a plurality at the other opening edge. Then, when the opening edges are welded and sealed to complete the bag, the suction holes are preferably formed laterally at a predetermined distance so that the suction holes formed in the respective opening edges do not overlap. The material of the outer film and the film forming the split film may be the same or different (for example, the film forming the split film may be a breathable film).

The opening method of the packaging bag according to the present invention is an opening method of the packaging bag in which the opening edge portions of the pair of outer films of the packaging bag are sucked by a suction plate to open the bag mouth. For the outer surface film, the suction disk is placed at a position removed from the suction hole to suck the outer surface film, and for the other outer film, the suction disk is placed at a position covering the suction hole. It is characterized in that the outer film and the split film (when the split film has a bag shape, the side not welded to the outer film) are adsorbed at the same time to open the bag mouth.

The packaging apparatus according to the present invention supplies the above-mentioned packaging bag, and at the first and second filling-stuffing positions, respectively, fills the two storage portions of the packaging bag with the filling material. An automatic packaging device, at the first filling material feeding position,
A suction plate that is addressed to a position removed from the suction hole of one of the outer surface films of the packaging bag, and an opening means that includes a suction plate that is directed to a position that covers the suction hole of the other outer film, At the second filling position, there is provided an opening means provided with a suction plate addressed to the suction hole of the one outer film and a suction plate addressed to a position removed from the suction hole of the other outer film. Is characterized by.

[0013]

Since all of the above packaging bags have suction holes at the opening edge portions of both outer surface films, the suction disk is placed at a position removed from the suction holes for one of the outer surface films, and the other. With respect to the outer surface film, the suction plate is directed to the position covering the suction hole, and when both are sucked, the one outer film is sucked by one suction plate, and the other outer film and the other suction film by the other suction plate. The split film (the side not welded to the outer film when the split film has a bag shape) is sucked through the suction holes at the same time. When both suction cups are pulled in that state, the bag mouth is opened, and the filling material can be put into the storage portion on the open side.

On the contrary, the suction plate is addressed to the one outer film at a position covering the suction hole, and the suction plate is addressed to the other outer film at a position removed from the suction hole. Yes, both sides are sucked, and one suction plate simultaneously sucks the one outer film and the split film (the side not welded to the outer film when the split film has a bag shape) through the suction holes, and the other one. The suction plate sucks the other outer film. When both suction cups are pulled in this state, the bag mouth is opened, and the packing can be put into the other storage portion this time. The suction holes formed in the packaging bag remain even after the opening edge is welded and sealed, but they are small (for example, about 3 to 5 mm in diameter), and there is no leakage of the filling material, and the appearance does not deteriorate.

[0015]

Embodiments of the present invention will be described below with reference to FIGS. First, FIG. 1 shows a packaging bag 21 that simultaneously stores two types of fillers, a filler 9 (a noodle soup base) and a filler 10 (a noodle). This packaging bag 21 is similar to the packaging bag 1 shown in FIG. 10 in that a split film 24 is interposed between two outer surface films 22 and 23, and both side edge portions 25 and bottom edge portions 26 are left while leaving their opening edge portions. It is a flexible packaging bag that is fusion-sealed, and the bag mouth formed by the outer films 22 and 23 is divided by a dividing film 24, and the space inside the bag is divided by the dividing film 24 into two independent first and second portions.
It is divided into storage units 27 and 28. Further, in the vicinity of the center of the opening edge portions of the outer surface films 22 and 23, the first
The suction holes 29 and the second suction holes 30 are formed. They are displaced laterally by a distance D so that the suction holes 29 and 30 do not overlap when the opening edges are welded and sealed after filling. If the suction holes 29 and 30 overlap each other, only the split film 24 is left at that portion, which is not preferable in terms of strength.

In FIG. 2, the packing bags 21 are filled with the filling materials 9, 10
Fig. 1 shows an intermittent rotation type automatic packaging apparatus in which the bag 21 is sequentially charged, and then the opening edge of the packaging bag is welded and sealed, and a table T that holds the bag 21 and rotates intermittently, and each step (I) around the table T. ~ VIII) each device arranged to carry out the main configuration, in the bag feeding process (I) bag storage device A
The inner packaging bag 21 is adsorbed and lifted by the suction cup 31, and is transferred to the chuck 32 on the side of the grasping table T by the grasping device B. In the imprinting step (II), the stamping machine C marks the manufacturing date on the surface of the packaging bag. Marking and filling the first filling step (II
In I), the bag mouth of the packaging bag 21 is opened by the opening means 33, the filler 9 is charged into the first storage portion 27 through the hopper 34, and the opening is performed in the second filler charging step (V) after the preparation step (IV). The bag opening of the packaging bag 21 is opened by the means 35, the second filling material 10 is put into the second storage portion 28 through the hopper 36, and the sealing device F is used in the first sealing step (VI) and the second sealing step (VII). By bag 21
Seals the opening edge, and finally performs the cooling discharge process (VII
In I), the sealed part is cooled and the completed bag 21 is discharged to the outside, and the package is rotated together with the table T while repeating movement and stop at predetermined intervals (that is, intermittent rotation). For the bag 21,
Each operation is executed in each step.

FIG. 3 shows the first charging position (step III).
3 shows the structure and operation of the opening means 33 and the like installed at the position (where Opening means 33 (opening means 35
The same structure except for the position of the suction plate) is disclosed in JP-A-64-4
It is almost the same as that described in Japanese Patent No. 5224, and includes a support sleeve 40, a rotatable support shaft 41 supported by the support sleeve 40, a gear 42 fixed to the upper end of the support shaft 41, and a lower end. A fixed horizontal lever 43, a sliding box 44 fixed to the upper end of the support sleeve 40, a pair of racks 45, 46 slidably supported in the sliding box 44 and meshing with the gear 42,
A suction tube 48 attached to the tip of the rack 45 via a bracket 47, a front suction disk 49 attached to the tip thereof, a suction tube 51 attached to the tip of the rack 46 via a bracket 50, and its tip. It is composed of a rear suction plate 52 and the like attached to the. The suction pipes 48, 51
Is connected to a vacuum device (not shown).

The mechanism such as the chuck 32 for holding the packaging bag 21 is the same as that described in Japanese Patent Laid-Open No. 64-45224, and this mechanism has pins 53 and 54 at the positions on the back side of the table T, respectively. Brackets 55 and 56 that are horizontally rotatable around the
Key pieces 60 integrally fixed to the arms 57 and 58, the chuck 32 attached to the tips thereof, and the brackets 55 and 56, and having a common pin 59 rotatably fixed to the ends thereof. 61, a roller 62 having a pin 59 as a support shaft, a disk cam 63, and a spring 64 which acts to urge the brackets 55 and 56 toward each other to constantly press the roller 62 against the disk cam 63.

As shown by the arrows in FIG. 3, when the horizontal lever 43 is reciprocally rotated by a mechanism (not shown), the gear 42 is reciprocally rotated via the support shaft 41, which causes the racks 45 and 46 to move. Reciprocating, front and rear suction cups 4
At the same time, the operations of the members 9 and 52 coming in and out of contact with the packaging bag 21 are performed. When the disc cam 63 is rotated by a predetermined angle by a mechanism (not shown), the roller 62 moves horizontally along the cam surface, the brackets 55 and 56 rotate about the pins 53 and 54, and the distance between the chucks 32 becomes smaller. It changes (when the bag mouth of the packaging bag 21 is opened, the distance is narrowed). Further, the hopper 34 can move up and down, moves downward when the bag mouth of the packaging bag 21 opens, and the lower end is inserted into the bag mouth.

Next, referring to FIG. 4, opening means 33 and 3
The configuration and function of 5 will be described in a little more detail. In the opening means 33 (see FIG. 4A), both suction plates 4
When 9 and 52 are advanced toward the packaging bag 21, the front suction plate 4
9 is directed to a position outside the first suction hole 29 of the outer surface film 22, and the rear suction plate 52 is located on the second side of the outer surface film 23.
Both suction cups 4 should be placed so that they cover the suction holes 30.
The positions of 9 and 52 are set. The front suction plate 49 sucks only the outer film 22 and the rear suction plate 52.
Sucks the divided film 24 through the outer film 23 and the second suction holes 30. If both suction cups 49, 52 are moved in that state in a direction away from each other, and at the same time the distance between the chucks 32 is narrowed, the bag mouth on the side of the first storage section 27 opens. The lower end of the hopper 34 is inserted into the bag mouth, and the filling 9 is put into the first storage portion 27 through the hopper 34.

In the opening means 35 (see FIG. 4B), when both suction plates 49 'and 52' are advanced toward the packaging bag 21, the front suction plate 49 'is moved to the first suction hole 29 of the outer film 22. The positions of both suction plates 49 'and 52' are set so that the rear suction plate 52 'is placed at a position outside the second suction hole 30 of the outer film 23. . The front suction plate 49 'is the outer film 2
The divided film 24 is sucked through the second suction hole 29 and the second suction hole 29, and the rear suction plate 52 'sucks only the outer film 23. If both suction plates 49 'and 52' are moved away from each other in that state and the distance between the chucks 32 is reduced at the same time,
The bag mouth on the side of the storage portion 28 opens. The lower end of the hopper 36 is inserted into the bag mouth, and the filling 10 is put into the second storage portion 28 through the hopper 36.

FIG. 5 is a diagram for generally explaining the movements of the packaging bag 21 and the like in the first filling material charging step (FIG. 5A) and the second filling material charging step (FIG. 5B). Is a plan view. In the first filling material feeding step (A), when the packaging bag 21 enters the first filling material feeding position (a), both suction plates 49 and 52 move toward the packaging bag 21 to suck the opening edge portion ( b), followed by both suction cups 49, 52
And the gap between the chucks 32 is narrowed in accordance with the timing to open the bag mouth on the first storage section 27 side,
The hopper 34 is inserted, and the filling 9 is charged (c). Finally, the suction of both suction plates 49, 52 is stopped, and the chuck 32
The interval of is restored to its original value (d).

When the packaging bag 21 enters the second filling material loading position (e) in the second filling material introducing step (B), both suction plates 49 'and 52' advance toward the packaging material bag 21 and the opening edge portion. (F), then both suction plates 49 'and 52' are separated, and at the same time the gap between the chucks 32 is narrowed to open the bag mouth on the second storage section 28 side and insert the hopper 36. Then, the filler 10 is charged (g). Finally,
The suction of both suction plates 49 'and 52' is stopped, and the distance between the chucks 32 is restored (h). In addition, as clearly shown in (b) and (f) in particular, the positions of the front and rear suction plates are slightly shifted horizontally in a state without a packaging bag (for example, the packaging bag is chucked by the chuck 32 for some reason). It is to prevent both suction plates from directly attracting each other.

Next, another embodiment of the packaging bag will be described. Similar to the packaging bag 21, each of the packaging bags shown below is divided into two independent storage portions by a split film, and suction holes are formed in the opening edge portions of both outer surface films. It has the same basic functions as. The packaging bag 61 shown in FIG. 6 is a packaging bag in which the depth of the first storage portion 67 is shallow, and both side edges of the divided film 64 are welded and sealed together with both side edges 65 of both outer surface films 62 and 63 to form a bottom edge. The portion 64b is welded and sealed to the side surface of the one outer film 62. The packaging bag 21 includes a first storage portion 27 and a second storage portion 27.
The storage portion 28 has the same size and is suitable for loading two kinds of filling materials of the same size. In the packaging bag 61, the size of the filling material to be loaded into the first storage portion 67 is to be loaded into the second storage portion 68. Suitable when smaller than the size of the packing.

The packaging bag 71 shown in FIG.
4 is the outer surface film 7 on both side edge portions 74a and bottom edge portion 74b.
It is welded and sealed to the side surface of No. 2. Since the size of the first storage portion 77 of the packaging bag 71 is further reduced, it is suitable for use, for example, in which the divided film 74 is made of a breathable film and a small bag such as an oxygen scavenger is put therein.

In the packaging bag 81 shown in FIG. 8, one split film 84 bent at the bottom is interposed between two outer films 82 and 83, and both side edges of the split film 84 are provided on both outer films 82, 83. 83 is welded and sealed together with both side edge portions 85 to form a bag shape, and the opening edge portion of the side 84a of the divided film 84 facing the outer surface film 82 is provided with the outer surface film 82.
Of the outer surface film 82 and the film 84 (on the side of 84a) of the outer surface film 82 and the film 84 (on the side of 84a). It is formed to penetrate. This packaging bag 81 differs from the packaging bag 61 in that the first storage portion 87 is defined by a single sheet of folded film 84, but the side 8 of the film 84 that is not welded and sealed.
4b functions similarly to the divided film 64 of the packaging bag 61.

The packaging bag 91 shown in FIG. 9 is formed into a bag-shaped divided film 94 by welding and sealing the side edges and the bottom edge of two films 94a and 94b, and the opening edge of one film 94a is formed. The first suction hole 99 is formed by welding and sealing the outer surface film 92 to the opening edge of the outer surface film 92.
The outer surface film 92 and the film 94a are formed at the opening edge of the film 94a. In this packaging bag 91, the first storage portion 97 has two films 94 a, 9 a.
Although it is different from the packaging bag 71 in that it is defined by a split film 94 composed of 4b, one film 94a functions similarly to the split film 74 of the packaging bag 71.

Regarding the size of the first storage portion, the packaging bag 81 is the same as the packaging bag 61 and the packaging bag 91 is the same as the packaging bag 71, but the packaging bag 81 and the packaging bag 91 are the second storage. The filler charged in the part may be caught on the divided film 84 or 94 at the time of taking out, while the packaging bag 61 or 71 has the difference that it is easy to take out without such a phenomenon.

In the above embodiment, one suction hole is formed in each opening edge portion, but a plurality of suction holes are formed in each opening edge portion when, for example, the size of the bag becomes large. If a suction plate is provided correspondingly, the opening of the packaging bag can be performed more reliably.

[0030]

According to the present invention, the bag mouth of a packaging bag having two storage portions can be automatically and surely opened for each storage portion, and the existing bag feeding type automatic packaging device can be provided. With a simple improvement, it becomes possible to automatically add the filling material to each storage portion of the packaging bag having two storage portions. Furthermore, the present invention has the advantage that it can be applied to a wide variety of packaging bags of various shapes or sizes.

[Brief description of drawings]

FIG. 1 is a perspective view of a packaging bag according to an embodiment.

FIG. 2 is an explanatory diagram of an intermittent rotation type automatic packaging device according to an embodiment.

FIG. 3 is an explanatory view of opening means and the like according to the embodiment.

FIG. 4 is an explanatory diagram of the packaging bag according to the embodiment when the bag mouth on the first storage portion side is opened (a) and then the bag mouth on the second storage portion side is opened (b).

FIG. 5 is a diagram for generally explaining the movement of the packaging bag and the like in the filling material charging step of the embodiment, and is an explanatory diagram of a first packing material charging step (A) and a second packing material charging step (B). .

FIG. 6 is a perspective view of a packaging bag according to another embodiment.

FIG. 7 is a perspective view of a packaging bag according to another embodiment.

FIG. 8 is a perspective view of a packaging bag according to another embodiment.

FIG. 9 is a perspective view of a packaging bag according to another embodiment.

FIG. 10 is a perspective view of a conventional packaging bag having two storage parts.

FIG. 11 is a perspective view of a conventional packaging bag in which a filling material is put into each of two storage portions and then the opening edge portions are welded and sealed.

[Explanation of symbols]

21 packaging bags 22, 23 outer film 24 split film 27 First storage 28 Second storage 29 First suction hole 30 Second suction hole 49 1st suction plate 52 Second suction plate

Claims (14)

(57) [Claims] 1. A packaging bag provided with a dividing film which is interposed between a pair of facing outer films to divide the bag mouth formed by the films and divides the inside of the bag into two storage portions. A packaging bag, wherein one or two or more suction holes are formed at each opening edge of the pair of outer surface films. 2. The packaging bag according to claim 1, wherein the edges of both outer surface films are welded and sealed except for the opening edges. 3. The packaging bag according to claim 2, wherein both side edges and a bottom edge of the split film are welded and sealed together with the outer film. 4. The split film has both side edges welded and sealed together with both side edges of the outer film, and the bottom edge of the split film is welded and sealed to a side surface of either one of the outer films. The packaging bag described in Item 2. 5. The packaging bag according to claim 2, wherein both side edges and a bottom edge of the split film are welded and sealed to a side surface of one of the outer films. 6. The suction holes formed in each opening edge portion are formed at positions laterally apart from each other by a predetermined distance so as not to overlap when the opening edge portions are welded and sealed. The packaging bag described in any one of to 5. 7. A bag-shaped dividing film, which is interposed between a pair of facing outer films to divide the inside of the bag into two accommodating portions, and one of the bag-shaped dividing films has a surface facing the outer film. The opening edge portion on the side of the outer surface film is welded to the opening edge portion of the one outer surface film, and one or more suction holes are formed in each of the welded opening edge portion and the opening edge portion of the other outer surface film. A packaging bag characterized by being 8. The packaging bag according to claim 7, wherein the edges of the outer films are welded and sealed except for the opening edges. 9. The bag-shaped divided film is composed of a single film bent at the bottom, and both side edges thereof are welded and sealed together with both side edges of the outer film. The packaging bag described in. 10. The packaging bag according to claim 8, wherein the bag-shaped divided film is composed of two films, and both side edges and bottom edges thereof are fusion-sealed. 11. A suction hole formed at each opening edge portion is formed at a position laterally separated by a predetermined distance so as not to overlap when the opening edge portions are welded and sealed. The packaging bag described in any one of 10 to 10. 12. A method for opening a packaging bag, wherein the pair of outer surface films of the packaging bag according to any one of claims 1 to 6 is suctioned by a suction plate to open a bag mouth. The suction plate is attached to a position removed from the suction hole with respect to one of the outer surface films to adsorb the outer surface film, and the suction plate is attached to a position with which the outer surface film covers the suction hole. An opening method for a packaging bag, which comprises simultaneously adsorbing an outer film and a split film to open a bag mouth. 13. A method for opening a packaging bag according to any one of claims 7 to 11, wherein the opening edges of the pair of outer surface films of the packaging bag are sucked by a suction plate to open the bag mouth. The suction plate is attached to a position removed from the suction hole with respect to one of the outer surface films to adsorb the outer surface film, and the suction plate is attached to a position with which the outer surface film covers the suction hole. A method for opening a packaging bag, which comprises simultaneously adsorbing an opening edge portion on the non-welded side of the outer film and the split film to open the bag mouth. 14. The packaging bag according to claim 1, at the first and second filling material feeding positions.
A packing device in which each of the storage parts is loaded with a filling material, and a suction plate which is placed at a position where the first filling material is placed in a position removed from the suction hole of one of the outer surface films of the packaging bag. A suction plate that is provided with a suction plate that is directed to a position that covers the suction hole of the other outer film, and that has a suction plate that is directed to the suction hole of the one outer film at the second filling-in position. A packaging device having an opening means provided with a suction plate placed at a position removed from the suction hole of the other outer surface film.