JPH06320646A - Butt-seam bag and method and apparatus for processing v-notch of butt-seam bag - Google Patents

Abstract

PURPOSE:To easily close a butt-seam bag when a product is left in the butt-seam bag by reducing the size of the mouth formed by tearing a V-notch. CONSTITUTION:A V-notch 5 is provided to the edge of a butt-seam part 2 at the place under an upper seal part 3. When a bag is torn from the V-notch 5 of the butt-seam part 2, only the rear sheet (on the side of the butt-seam part 2) under the upper seal part 3 is laterally torn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-sealing seal bag having a V-notch formed in the gas-sealing seal portion and a method and apparatus for cutting the V-notch into the gas-sealing seal bag.

[0002]

2. Description of the Related Art A bag made of plastic film or the like for containing a product such as food has a pouch seal bag and a three-way seal bag. As shown in FIG. It is excellent in that there are two parts, a gastric seal part 32 and an upper seal part 33 (hatched part), except for the bottom opening part 31 of FIG. However, in the case of continuously manufacturing the gas palm seal bag 30 in a high-speed automatic bag making line, the gas palm seal bag 30 continuous in the length direction of the gas palm seal portion 32 before being individually cut is shown in FIG. Since the vehicle travels in the direction of arrow a, the V notch cannot be cut and processed on the bag making line. Therefore, in the past, the gassho seal bag 30 produced on the bag-making line was removed by a foot-operated V-notch machine at a place different from the bag-making line.
About 0 sheets were stacked and the V notches 34 were cut into the upper seal portion 33.

[0003]

However, at the V-notch 34, both the front and back sheets of the bag are broken in the longitudinal direction of the gas-sealing seal bag 30, so that the opening to be broken becomes large and the product is left in the bag. It will be difficult to close.

Further, since the V notch 34 is processed outside the bag making line, the processing efficiency is poor.

A first object of the present invention is to provide a gas-sealing seal bag which can be easily closed when the product is left in the bag by reducing the opening broken by the V notch.

A second object of the present invention is to provide a V-notch processing method and apparatus for a V-notch which can cut a V-notch in a gas-sealed seal portion with high processing efficiency.

[0007]

The present invention according to claim 1 is a gas-sealing seal bag having a V-notch at the edge of the gas-sealing seal portion below the upper seal portion.

According to the second aspect of the present invention, a gas-sealing seal bag which is continuous in the lengthwise direction of the gas-sealing seal portion before being individually cut is intermittently fed, and only the gas-sealing seal portion of the gas-sealing seal bag is sent. A method of guiding from a prone state to an upright state, and when intermittent feeding is interrupted, a V notch is cut by a V-shaped punch and a die at the edge of the upright gas palm seal portion below the upper seal portion. Is.

According to a third aspect of the present invention, a horizontal guide plate for horizontally supporting and guiding the palm-sealing seal bag, which is continuous in the lengthwise direction of the palm-sealing seal portion before being individually cut, and a continuous palm-sealing. The upright guide member for bringing the folded palm-sealed seal portion of the seal bag into an upright state, the V-shaped punch and die positioned with the palm-sealed seal portion placed upright by the upright guide member therebetween, and the punch An apparatus provided with a punch driving means for driving when intermittent feeding of continuous pouch seal bags is interrupted.

[0010]

In the present invention according to claim 1, when the bag is ruptured from the V notch in the gastric seal part, only the back sheet below the upper seal part (the sheet having the gastric seal part) is laterally ruptured. I am trying.

Further, according to the present invention as set forth in claim 2 or 3, in a bag making line in which the palm-sealing seal bags, which are continuous in the lengthwise direction of the palm-sealing seal portion, are intermittently fed before being individually cut. The V notch is formed by cutting only the gas-sealed seal portion from the laid-down state to the upright state.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing a pouch seal bag which is an embodiment of the present invention.

The gas palm seal bag 1 has a gas palm seal portion 2 and an upper seal portion 3 (hatched portion). The bottom opening portion 4 is an opening for inserting a product such as food,
Sealed after product insertion. A V notch 5 is cut into the edge of the gassho seal portion 2 below the upper seal portion 3. In the high-speed automatic bag making line, the gassho seal bags 1 are not individually cut, are continuous in the lengthwise direction of the gassho seal portions 2, and are intermittently fed in the direction of arrow a. Then, it is individually cut at the end of the bag making line.

When the bag is ruptured from the V notch 5 of the gas palm seal portion 5 with the product inserted and the bottom opening portion 4 sealed, the back sheet below the upper seal portion (the one having the gas palm seal portion 2) Only the sheet) is laterally ruptured, as indicated by the chain double-dashed line in FIG. Therefore, the mouth torn by the V notch 5 becomes smaller, and when the product is left in the bag, it can be easily removed.

FIG. 2 and FIG. 3 show V which is an embodiment of the present invention.
It is a front view and a top view showing a notch processing device. This V
The notch processing equipment is installed in the high-speed automatic bag making line.

A base 7 is fixed on the line base 6, and an L-shaped punch frame 8 and a die frame 9 are fixed to the left and right ends of the base 7, respectively. Base 7
A support member 10 is fixed to the front side of the, and a horizontal guide plate 11 is fixed to the support member 10. The horizontal guide plate 11 horizontally supports and guides the gas palm seal bag 1 which is continuous in the lengthwise direction of the gas palm seal portion 2 before being cut. The continuous gas-sealing seal bag 1 is intermittently sent from the front side of the paper surface to the back surface of the paper surface in FIG. 2 and from the bottom to the top surface in FIG. 3 by the intermittent feeding means (not shown) for the high-speed automatic bag making line. A pair of mounting members 12 and 13 are mounted on the front sides of the punch frame 8 and the die frame 9, respectively, and a pair of upright guide members 14 and 15 are mounted on the mounting members 12 and 13, respectively, and the gas-sealing seal portion 2 passes between them. It is attached so as to face each other with a certain interval. Upright guide members 14, 15
As shown in FIG. 4, a continuous gas-sealing seal bag 1 '
The gas-sealed seal portion 2'of FIG. The vertical corners and the horizontal corners of the upright guide members 14 and 15 which face each other are formed in an arc shape as shown in FIG.

A punch receiver 16 is provided at the left end of the punch frame 8.
Is screwed, and the punch receiver 16 slidably supports the punch 17. The tip of the punch 17 is V-shaped.
The punch 17 is connected to the punch driving cylinder 1 via a connecting rod 18.
9 is connected. A fixed stripper 20 is attached to the punch receiver 17.
Is fixed.

A die receiver 21 is screwed to the right end of the die frame 9, and a die 22 is fixed to the die receiver 21. A scrap removing pipe 23 is connected to the die 22, and a compressed air pipe 24 is connected to the scrap removing pipe 23 in the die receiver 21.

The punch 17 and the die 22 are made upright by the upright guide members 14 and 15 and are in the upright position.
It is supposed to be located with a pinch in between.

Although not shown, the horizontal guide plate 11 and the upright guide members 14 and 15 can be adjusted in vertical position. This is because there is a bag in which the width of the gassho seal portion 2 is different and the vertical position can be adjusted according to the width.

The V notch processing apparatus shown in FIGS. 2 and 3 is installed before the final cutting step (step of individually cutting continuous bags) of the high-speed automatic bag making line. Initially,
The continuous palm-sealing seal bag 1'is set by passing the palm-sealing seal portion 2'by hand between the upright guide members 14 and 15. When intermittent feeding of a continuous gas palm seal bag 1'is started by operating the intermittent feed means (not shown) of the high-speed automatic bag making line, the gas palm seal portion 2'is guided upright as shown in FIG. It is sandwiched between the members 14 and 15 and sent in an upright state. Then, at the position where the vertical guide members 14 and 15 have been passed, the punch 17 is driven by the cylinder 19 to interrupt the V notch 5 as shown in FIG. Cut in. The dust generated by the cutting is discharged to the outside through the dust removing pipe 23 in which a suction force is generated by the supply of compressed air.

The initial setting position of the continuous palm-sealing bag 1'is adjusted so that the V-notch 5 is processed at a position below the upper-sealing portion 3 of the gas-sealing seal portion 2.

[0023]

As described above, according to the present invention as set forth in claim 1, a V notch is provided at the edge of a portion of the gas palm seal portion below the upper seal portion, whereby the gas palm seal portion is provided. When the bag is breached from the V notch, only the back sheet below the upper seal part (the sheet with the gastric seal part) is allowed to be breached in the lateral direction. If you leave the product inside, it can be easier to get rid of.

Further, according to the present invention as set forth in claim 2 or 3, the bag-making line in which the palm-sealing seal bags which are continuous in the length direction of the gas-sealing seal portion before being individually cut are intermittently sent. Since the V-notch is cut and processed by making only the gas-sealing seal part upright so as to be upright, the V-notch can be cut and processed efficiently in the gas-sealing seal part.

[Brief description of drawings]

FIG. 1 is a perspective view of a palm-sealing seal bag that is an embodiment of the present invention.

FIG. 2 is a front view of a V-notch processing apparatus that is an embodiment of the present invention.

FIG. 3 is a plan view of a V notch processing device.

FIG. 4 is a perspective view showing details of an upright guide member according to an embodiment of the present invention.

FIG. 5 is a sectional view showing details of the upright guide member.

FIG. 6 is a diagram showing a V-notch processing state using a punch.

FIG. 7 is a perspective view of a conventional gassho seal bag.

[Explanation of symbols]

 1 Gassho Seal Bag 1'Continuous Gasoline Seal Bag 2 Gasoline Seal Part 2'Continuous Gasoline Seal Part 3 Top Seal Part 4 Bottom Opening Area 5 V Notch 6 Line Base 7 Base 8 Punch Frame 9 Die Frame 10 Supporting Member 11 Horizontal Guidance Plates 12 and 13 Mounting members 14 and 15 Upright guide members 16 Punch holders 17 Punches 19 Cylinders 21 Die holders 22 dies

Claims (3)

[Claims] 1. A gassho seal bag having a V notch on the edge of the gassho seal portion below the upper seal portion. 2. A gas-sealing seal bag, which is continuous in the lengthwise direction of the gas-sealing seal portion before being individually cut, is intermittently fed,
When the intermittent seal feed is interrupted, a V-shaped punch is formed at the edge of the upright seal-sealing seal portion below the upper seal portion when guiding only the spiral-sealing seal portion of the safety-sealing seal bag from an upright state. Gasket seal bag V notch processing method in which V notch is cut and processed with a die. 3. A gas-sealing seal bag, which is continuous in the lengthwise direction of the gas-sealing seal portion before being individually cut, is horizontally supported.
Positioned with a horizontal guide plate for guiding, an upright guide member for making the lying palm-sealing seal portion of the continuous palm-sealing seal bag upright, and a palm-sealing seal portion placed upright by the upright guide member therebetween. A V-shaped punch and die for punching, and a punch notch driving device for driving the punch when the intermittent feeding of the continuous pouch sealing bag is interrupted.