JPH03178798A - Accumulation of bag body - Google Patents

Abstract

PURPOSE:To easily integrate synthetic resin made bags with their gathering on each specific number in continuation, by moving them with the use of the bar for transfer which equips with a holder, after integrating the bag bodies in the specific number by a pin body for integration. CONSTITUTION:A bar 9 for transfer traveling so as to scoop a bag body 8 from the lower part is provided at the rear part of a pin body 4 for integration, a holder 10 interposing the bag body 8 in the space with the transfer bar 9 is provided as well and the bag body 8 is integrated one by one while holding it from the lower part by the integrating pin body 4 and transfer bar 9. Then simultaneously with or immediately after separating the plural bag bodies 8 integrated in the specific number from the pin body 4 they are moved to the rear part while fixing by the holder 10 with the transfer bar 9.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for reliably stacking a predetermined number of packaging bags made of synthetic resin films.

(Prior art and its problems) Packaging bags used in various food fields are made from synthetic resin film through a sealing process, etc., and then a predetermined number of bags are stacked and stitched together, and then the user can make the bags. Designed for ease of handling. Typical binding methods include pricking a predetermined number of bags with stacking pins and heat-sealing them together.

However, with the above method, it is difficult to reliably move a certain number of bags released from the stacking pin body backwards without shifting each other, and there are problems such as the need to stack the bags manually. Ta.

(Means for Solving the Problems) The present invention solves the above problems by stacking a predetermined number of bags using a stacking pin body and then moving them using a transport bar equipped with a holder. This is what we discovered.

Hereinafter, the present invention will be explained in detail with reference to the drawings. Fig. 1 is a cross-sectional view showing an example of the accumulating device used in the present invention, Fig. 2 is a plan view of the accumulating device shown in Fig. 1, and Fig. 3 is a cross-sectional view showing an example of the holder used in the present invention. 4 are process diagrams showing the operating sequence of the integrated device shown in FIG. 1.2.

The method of the present invention will be explained with reference to the integration device shown in FIG. 1.2 and the process diagram shown in FIG. The synthetic resin cylindrical bag 1 used in the present invention is a cylindrical body folded with a constant folding diameter by a back sticker etc., and the bottom seal part 11 is made constant during the sealing process (not shown). It is provided at intervals.

Normally, the cylindrical bag 1 is continuously conveyed from the previous process by a take-up roll 2 intermittently depending on the length of the final bag.

A normal rubber roll can be used as the take-up roll 2, and the cylindrical bag 1 can be nipped and conveyed from above and below.

As shown in Fig. 1, immediately behind the take-up roll 2, a cutter blade 3 for cutting the cylindrical bag 1, a pin body 4 for accumulation, and a extraction plate 5 for extracting the accumulated bags from the pin body are sequentially installed. This is the arrangement. The cutter blade 3 may be an ordinary saw blade or the like, and its shape is determined depending on the required cross-sectional shape as shown in FIG.

The cutter blade 3 may be of a type that cuts the cylindrical body from the top to the bottom, or a type of cut of the cylindrical body from the bottom to the top. The pin body 4 must be able to easily penetrate the cylindrical bag, and its tip shape, diameter, number of pins, etc. to be used may be determined as appropriate. By moving the extraction plate 5 from the bottom to the top, the cut and accumulated bags 8 can be extracted from the pin body.

At the front and back of the cutter blade 3, clamp plates 6.7 are provided above and below to clamp the cylindrical bag so that it does not shift when cutting the cylindrical bag. The clamp plate 6 has a gap in which a cutter blade and a pin body that move upward can be accommodated.

In the above-mentioned apparatus, as shown in FIG. 4, the cylindrical bag 1, which is intermittently conveyed by the take-up roll 2, is first clamped by the clamp plate 6.7 at a predetermined position, or at the same time, the cutter blade is 3 and the pin body 4 are moved upward to cut the cylindrical bag and penetrate the pin body into the cylindrical bag. The obtained bag body 8 is held by the pin body 4 and the conveyance bar 9. After that, the cutter blade 3 is operated downward, and at the same time, the clamp plate 6 is
After retracting the pins 7 in the vertical direction, the pin body holding the bag body is lowered.

In this case, if the pin body 4 is lowered so as to be slightly shifted rearward from the cutting part, there is an advantage that the cut part of the bag body held by the pin body 4 can be easily moved without being caught by the clamp plate 7.

After repeating the operation of holding and cutting the cylindrical bag by the clamp plates 6 and 7, piercing the pin body, and stacking the bag a certain number of times, a predetermined number of stacked bags 8 are pierced by the pin body.
moves the extraction plate 5 upward to extract it from the pin body 3, and at the same time or immediately after, the bag body 8 is fixed by the holder 10 in a folded state by a transport bar 9 having holders 10 at both ends. while being moved backwards.

The conveyance bar 9 has a structure in which a plurality of conveyance bars are attached to a chain 15, and the bags are circulated in conjunction with the above operation so as to scoop up bags, so that bags can be continuously accumulated. . Holders 10 are provided at both ends of the transport bar 9 to prevent the bag 8 from slipping off on the transport bar. In the case of a narrow bag 8, a conveyance bar provided with a holder only on one side can be used. As the holder 10, one having a zipper and a handle can be suitably used because it can securely hold the bag.

In the holder 10 shown in the sectional view of FIG. 3, a chuck 13 having a turning mechanism is provided at the end of the pipe-shaped conveying bar 9. The chuck 13 rotates around A in the figure and can hold the bag 8 between it and the conveyor bar when in operation.

The chuck 13 is connected to connecting fittings 17 and 18 by keys or the like, and a spring 12 in the sleeve 21 applies rotational force to the chuck 13 to clamp the bag.

Further, a pusher 14 is disposed on the outer surface of the holder 10, and by pushing the shaft end fitting 22, the chuck 13 can be rotated and released from the grip of the bag body.

The pusher 14 is provided in parts (a) and (b) of FIG. 1.

〈A〉 is the position where the bags are accumulated, and 〈A〉 is the position where the accumulated bags are taken out of the system.

The operation of the chuck of the holder is synchronized with the movement of the conveyance bar 9 described above. To further explain the operation of the carrying bar 9, at the start of accumulation, the carrying bar moves around as if scooping up the bags 8 from below and moves them to the position (A) in FIG. 1.

When this position is reached, the pusher 14 is actuated to swing the chuck into an open state so that the bags can be stacked one after another. When the number of bags to be stacked reaches a predetermined number, the operation of the pusher 14 is stopped to close the chuck 13 and clamp the bags between the transport bar. In this state, the extracting plate 5 is operated to separate the bags from the pin body, and then the conveyance bar 9 is moved to the exit, and at this position the pusher is operated to open the chuck and the bags are stacked. Take it out of the system. After taking out the bag, the conveying bar moves to the position (c) and waits. Since the above-mentioned conveyance bar is linked to the stacking process, automatic stacking can be easily performed.

(Effects of the Invention) As described above, according to the present invention, synthetic resin bags can be easily stacked continuously in predetermined numbers, and therefore have great applicability in the packaging field.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an example of an accumulating device used in the present invention, FIG. 2 is a schematic plan view of the accumulating device shown in FIG. 1, FIG. 3 is a cross-sectional view of a holder used in the present invention, The figure is a process chart showing the operation sequence of the integrated device shown in Fig. 1.2. 1... Tubular bag 2... Collection device

Claims (1)

[Claims] A take-up roll (2) for intermittently transporting the folded synthetic resin cylindrical bags (1) having bottom seal portions at regular intervals is provided after the bottom sealing process, and the cylindrical bags are placed immediately behind the take-up roll (2). A cutter blade (3) for cutting the bag (1) and a stacking pin body (4) are sequentially arranged in the conveying direction of the cylindrical bag (1), and the cylindrical bag (1) is cut with the cutter blade to form a bag. A bag stacking method in which a predetermined number of bags (8) are obtained and a predetermined number of bags (8) are stitched together using a stacking pin body (4), the bag bodies (8) being attached at the rear of the stacking pin body (4). A conveyor bar (9) that circulates to scoop up the bag (8) from below is provided, and a holder (10) that clamps the bag (8) between the conveyor bar (9) is provided. (8) are stacked one bag at a time while being held from below by the stacking pin body (4) and the transport bar (9),
A feature is that a predetermined number of accumulated bags (8) are removed from the pin body (4) and, at the same time or immediately after, are moved rearward using a conveyor bar (9) while being fixed by a holder (10). How to accumulate bags.