JPS6232836Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a bundle delivery mechanism in a sheet-like material bundling device.

(Prior Art) For example, in a bag making machine that makes shopping bags made of thermoplastic synthetic resin, in order to bundle the bags made, as shown in Japanese Patent Application Laid-Open No. 134466/1980, Insert the bags one by one into the locking pins of the drilling tool, punching sleeve, holding spike, etc. that protrude on a base such as a support plate, and when the desired bundle of bags is formed, insert the locking pin into the base. Then, the bundle of bags is released from the locking pin, and the released bundle of bags is carried out by a downwardly inclined table such as a chute.

(Problem to be solved by the invention) However, in the case of the above-mentioned conventional structure, even if the locking pin is recessed into the base and the bag bundle is released from the locking pin, As the locking pin moves, the peripheral edge of the hole formed in the bag body may be pulled in the direction of movement of the locking pin, and the locking pin of the base may enter the hole into which the locking pin is recessed. In the case of a bundling device in which the locking pin has a heating part and the bags are heat-sealed around the locking part, this possibility is high, and in this state, the bag bundle cannot be carried out reliably. There was a problem that it was not done.

The present invention was devised in view of these points, and its purpose is to reliably send out a bundle of sheet-like objects such as bags released from a locking pin from a sheet-like object bundling device. .

[Structure of the idea]

(Means for Solving the Problems) The present invention is achieved by sequentially inserting the rear part of the sheet-like material B made of thermoplastic synthetic resin into the locking pin 17 having the heating part 26 protruding from the base 16. A bundling device 15 for sheet-like objects B that releases the bundle of sheet-like objects B from the locking pin 17 by recessing the locking pin 17 into the base 16 after the sheet-like objects B are bundled together. , the mechanism 29 relates to a bundle sending mechanism 29 for sending out a released bundle of sheet-like objects B, and is provided at the front part of the base 16 in a downwardly sloping manner toward the front and supports the sheet-like objects B. a table 21, a spring body 31 that is pivotally supported on the lower surface of the table 21 and is retractable from the upper surface of the table 21, and a drive source 33 that drives the spring body 31. A spring body 31 is projected onto the table 21 and flips up the rear part of the bundle of sheet materials B, so that the bundle of sheet materials B is sent forward by the downward slope of the table 21.

(Function) The bundle feeding mechanism 29 in the bundling device 15 for sheet-like materials B according to the present invention flips up the rear part of the bundle of sheet-like materials B by the flip-up body 31, so that the bundle is attached to the locking pin 17. The peripheral edge of the hole of the sheet B thus formed is reliably removed from the hole portion into which the locking pin 17 of the base 16 is inserted.

(Example) Next, an example of the present invention will be described based on the drawings.

FIG. 1 shows a shopping bag manufactured by a bag making machine to which the bundle feeding mechanism of the sheet bundling apparatus of the present invention is applied, and this bag making machine will be described below.

In Fig. 2, reference numeral 1 denotes a long flat cylindrical body made of thermoplastic synthetic resin, such as polyethylene, etc. This cylindrical body 1 is folded into a V shape with both sides facing inward. Although not shown, it is wound in a spiral shape, and is adapted to be pulled out from the outer end.

The cylindrical body 1 pulled out from the outer end is wound around guide rollers 2 and 3 provided above and below to remove slack, and then introduced into the quantitative transfer device 4. This transfer device 4 includes a pair of upper and lower large-diameter rollers 5 in a direction perpendicular to the direction in which the cylindrical body 1 is transferred.
and small-diameter rollers 6 are horizontally mounted one after another, and an endless belt 7 is wound between the upper and lower rollers 5 and 6, respectively, and the cylindrical body 1 is sandwiched between the upper and lower belts 7 and It is designed to intermittently send out a predetermined length, that is, the length of the bag to be manufactured.

The cylindrical body 1 made of thermoplastic synthetic resin sent out by the quantitative transfer device 4 is guided to a sealing and cutting device 8. This sealing and cutting device 8 is provided in front of the quantitative transfer device 4, and is
A fixed receiver 9 is horizontally suspended below the cylindrical body 1 sent out over the entire length in the width direction of the cylindrical body 1, and a movable body 10 facing the fixed receiver 9 is mounted on the cylindrical body 1. The fixed receiver 9 and the movable body 10 are horizontally mounted so as to be vertically movable, and a heat source is built inside the fixed receiver 9 and the movable body 10. Forming recesses 11 and 12 facing each other, thereby
Heat-sealed portions 13 are formed spaced apart and parallel to each other on both sides of each of the recesses 11 and 12, and a cutting blade 14 is provided in the recess 12 of the movable body 10 over the entire length.
It is formed by attaching it with its tip protruding from the recess 12. Then, when the cylindrical body 1 intermittently fed out by the quantitative transfer device 4 is stationary, the movable body 10 is lowered to the fixed receiver 9 via the cylindrical body 1 to heat it. The cylindrical body 1 is cut into a predetermined length using the cutter blade 14 , and the front and rear parts of this cut section are heat-sealed and sealed using the heated heat-sealing section 13 .
The bag body B is raised and returned to form a closed bag body B as a sheet-like product.

Further, at this time, the front end of the cylindrical body 1 protruding forward of the sealing and cutting device 8 is attached to the heat-sealing bundling device 15.
has been introduced. This bundling device 15 is provided close to the front of the sealing/cutting device 8, and a base 1 is provided below the rear of the bag body B formed from the cylindrical body 1.
6 is suspended horizontally, and a pair of locking pins 17 on both sides are erected on this base 16 so that they can be retracted and retracted by an air cylinder 18. A table 21 is mounted horizontally above the rear part of the bag body B formed from the cylindrical body 1 so as to be movable up and down, that is, movable forward and backward from the base 16, and supports the front part of the bag body B in front of the base 16. It is formed by providing a downwardly sloping shape. When the bag body B is formed by the sealing and cutting device 8, the cylindrical body 1 is intermittently fed out by the quantitative transfer device 4.
is stationary, the pressing body 20 advances and retreats from the base 16 via the cylindrical body 1 at the same time as or slightly earlier than the lowering movement of the movable body 10 of the sealing and cutting device 8, thereby causing the cylinder to close. A predetermined portion of the bag B formed from the shaped body 1 is inserted into a pair of locking pins 17.

Further, an air guide 2 is provided between the movable body 10 of the sealing and cutting device 8 and the pressing body 20 of the bundling device 15.
2 is provided. This air guide 22 blows air against the rear part of the bag body B below when the movable body 10 of the sealing and cutting device 8 descends to form the bag body B and returns to the upper position. It acts to separate the sealed part from the heat-sealed part 13.

The locking pin 17 is made of a heat-resistant insulating material and includes a small diameter cylindrical locking portion 23 having a conical tip as shown in FIG.
3, and a large diameter cylindrical support part 24 integrally provided below the base 16.
It is supported to be able to slide vertically, and
It is attached to the piston rod of the air cylinder 18, and the locking portion 23 is configured to protrude and retract above the base 16.

In addition, a heater wire insertion hole 25 is provided at the upper part of the locking part 23.
is passed through the insertion hole 25, and a central portion of a heater wire 26 serving as a heating portion is inserted through the insertion hole 25, so that the heater wire 26 is disposed on both sides of the locking portion 23 in the up and down direction. Both ends of this heater wire 26 are connected to the support portion 24.
It is connected to an electric wire 28 disposed through a pair of communication holes 27 passing through it in the vertical direction, and this electric wire 28 is connected to a control device (not shown).

Then, the bundling device 15 locks the locking pin 17
When a predetermined number of bags B, for example 50, are inserted, the heater wire 26 is energized for a predetermined period of time by a control device (not shown), the 50 bags B are heat-sealed and bundled, and then the locking pin 17 is inserted. The bag is momentarily lowered by an air cylinder 18 and removed from the bundle of bags B.

Further, the table 21 of the bundling device 15 is provided with a feeding mechanism 29. As shown in FIG. 4, this feeding mechanism 29 has a pair of elongated holes 30 on both sides of the table 21 on the base 16 side.
A splash plate 31 as a substantially fan-shaped splash body that appears on and disappears from the table 21 through this elongated hole 30
The arm 3 is pivotally supported on the lower surface of the table 21 and forms a bell crank together with the spring plate 31.
The piston rod of an air cylinder 33 as a driving source provided on the lower surface of the table 21 is pivotally attached to the end of the table 21. After the locking pin 17 is removed, the piston rod of the air cylinder 33 is operated to project. Lift up the rear part of the bundle of bags B suspended on the stand 16 and behind the base 16, and connect the peripheral edge of the hole in the bags B formed by the locking pin 17 to the locking pin 17 of the base 16. is completely removed from the hole into which it is inserted, and the bundle of bags B is sent forward by the downward slope of the table 21.

Note that the bundles of bags B sent out by the delivery mechanism 29 are stacked in the collection box 34, and through subsequent post-processing, the rear part of the bags B for each bundle of a predetermined number of bags is stacked in the stacking box 34. The bag is cut into a substantially U-shape including the locking hole portion and the heat-sealed portion formed by the locking pin 17 and the heater wire 25, and a handle portion and an opening are formed in the closed bag body B. Bag B is completed as a shopping bag as shown in FIG.

In this embodiment, the bag body B is formed from one strip of the cylindrical body 1, but since the widthwise dimension of the cylindrical body 1 is usually not wide, the guide rollers 2, 3 , transfer device 4, sealing and cutting device 8,
The width dimension of the air gauge 22, the heat-sealing bundling device 15, etc. is increased, and the locking pin 17 is
Alternatively, four splash plates 31 may be provided, and the bag body B may be formed from the two cylindrical bodies 1 in parallel.

In addition, although this embodiment describes the case where the present invention is applied to a bag making machine that manufactures synthetic resin shopping bags, the present invention is not limited to this, and may be applied to a bag making machine that manufactures other bags. Further, the sheet-like object is not limited to a bag, but may be a simple sheet.

Further, although the splash body is formed into a substantially fan shape, it is not limited to this, and may be formed into a rod shape, and the table may also be formed into a fork shape.

[Effect of idea]

According to the present invention, when the bundle of sheet-like objects bound by inserting into the locking pin is released from the locking pin, the rear part of the bundle is flipped up by the spring body, so that the sheet-like object can be The bundle can be sent out reliably with a simple structure, and if applied to a bag making machine, for example, it is not only optimal but also allows the bag making machine to be provided at a low cost.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a shopping bag showing an example of a sheet-like material, and Fig. 2 shows the process of a bag-making machine to which the bundle feeding mechanism of the sheet-like material bundling device of the present invention is applied. A is a plan view showing the processing state of the cylindrical body, B is a schematic side view of the bag-making machine, FIG. 3 is a locking pin thereof, A is a side view, B is a bottom view, and FIG. It is a top view of the table part. B... Bag as a sheet-like object, 15... Bunching device, 16... Base, 17... Locking pin, 21...
. . . table, 26 . . . heater wire as a heating section, 29 . . . delivery mechanism, 31 .

Claims (1)

[Claims for Utility Model Registration] After bundling the sheet-like objects by sequentially inserting the rear parts of the sheet-like objects made of thermoplastic synthetic resin into locking pins that have heating parts protruding from the base,
In a sheet bundling device that releases a bundle of sheet-like objects from a locking pin by recessing the locking pin into the base, a bundle delivery mechanism that sends out the released bundle of sheet-like objects a table provided at the front of the base in a downwardly sloping manner facing forward and supporting the sheet-like object;
A spring body is pivotably supported on the lower surface of the table and can be retracted from the top surface of the table, and a drive source for driving the spring body is provided, and the spring body is projected onto the table by the drive source. 1. A bundle delivery mechanism in a sheet bundling device, characterized in that the bundle of sheet materials is sent forward by a downward tilt of a table by flipping up the rear part of the bundle of sheet materials.