JPH0534225B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a compressed waste paper block tightening wire processing device for efficiently processing the wires tightening the compressed waste paper blocks.

[Conventional technology]

After waste paper such as old newspapers and magazines is collected by a collection company, it is compressed into a rectangular block by a compressor, and then tightened into a firm state with multiple wire hooks. It will be sent to a remanufacturer in its original condition. At the recycling plant, this compressed waste paper block is crushed by a crusher, but as a pretreatment, it is essential to remove the wires from the compressed waste paper block.

Conventionally, this wire removal work has been done manually, and the wires have been cut one by one by a worker using a cutter.

However, since the wire is deeply embedded inside the compressed waste paper, the cutting operation requires a lot of time and effort, and there are also safety problems as injuries are often caused during cutting.

In order to solve these problems, the special public
An automatic wire cutting device as shown in Japanese Patent No. 26976 has been proposed.

This device consists of a tooth plate with pointed teeth arranged in a row, another tooth plate whose teeth are in close contact with this tooth plate and reciprocate in the longitudinal direction of this tooth plate, and both of these plates. It has a pressing mechanism that presses the teeth of the toothed plate so that the tips of the teeth enter the compressed waste paper, and cuts the wire that binds the compressed waste paper. The wire is cut by rubbing it together.

[Problem that the invention seeks to solve]

As mentioned above, in the case of the conventional automatic wire cutting device, when processing the wire, it is necessary to advance the toothed plate into the compressed waste paper, and the depth of the wire cutting into the compressed waste paper block is considerable. Therefore, a considerable amount of pressing force must be applied to the toothed plate, which may result in incomplete cutting, and waste paper is also rubbed together with the wire during cutting, generating a large amount of debris. The problem was that it made the working environment extremely bad.

The present invention eliminates the drawbacks of the conventional tightening wire processing device described above, and makes the entire compressed waste paper block curved in order to partially expose the wires wedged inside the compressed waste paper block on the surface of the compressed waste paper block. Compressed waste paper that has been added with a bending means to apply tension to the wire on the protruding part side of the compressed waste paper block so that it can be cut smoothly with a cutter and the wire can be easily processed after cutting. The object of the present invention is to provide a tightening wire processing device.

[Means for solving problems]

In detail, the configuration of the present invention for achieving the above object is as follows: a compressed waste paper block folding means for bending a compressed waste paper block tightened by a plurality of wires into an arched shape on a work table consisting of a conveyor or the like; a wire clamping means for clamping the wire exposed on the recess side of the compressed waste paper block bent by the bending means; and a wire for cutting the wire on the protrusion side of the compressed waste paper block bent into an arched shape. A compressed waste paper comprising a cutting means, a wire feeding means for feeding out the wire cut by the wire cutting means, and a wire cutting means for cutting the wire fed out by the wire feeding means. This is a tightening wire processing device, and the bending means is composed of a wire clamper that also serves as a presser disposed on one side of a work table, and a bending guide plate that is disposed at a position opposite to the wire clamper that also serves as a presser. has been done. Further, if the wire clamping means is a pair of claws arranged in parallel that open and close via a rack and pinion provided on a wire clamper that also serves as a presser, chucking can be ensured and malfunctions can be prevented. . Further, the wire cutting means can be a cutter that is moved back and forth by a hydraulic cylinder, and the wire feeding means can be composed of a fixed feeding roller and a movable feeding roller, and the wire cutting means can be a cutter that is moved back and forth by a hydraulic cylinder. and a movable blade that is moved back and forth by a hydraulic cylinder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the specific structure of the compressed waste paper tightening wire processing apparatus of the present invention will be explained in detail based on the illustrated embodiment.

〔Example〕

Fig. 1 is an overall perspective view showing an embodiment of the tightening wire processing device of the present invention, Fig. 2 is a partial detailed view showing an embodiment of a wire clamper that also serves as a presser, and Fig. 3 is a detailed view of a wire clamper that also serves as a presser. FIGS. 4 and 5 are schematic diagrams showing the folding process of a compressed waste paper block, and FIGS. 6 and 7 are partial perspective views showing one embodiment. A schematic diagram showing a state in which the exposed wire is gripped by a wire clamper that also serves as a pusher; FIGS. 8 and 9 are schematic diagrams showing a state in which the wire on the protrusion side of the compressed waste paper block is cut; FIG. Figures 1 and 11 are schematic diagrams showing the state of processing the wire after cutting.

In the figure, numeral 1 shows a compressed waste paper block in which old newspapers, old magazines, etc. are stacked in an orderly manner in the same direction, and the periphery thereof is tightened with a plurality of wires 2. 3 is a work table consisting of a slat conveyor or the like on which the compressed waste paper block 1 is placed; 4 is a wire clamper that also serves as a presser disposed on one side of the compressed waste paper block 1 at the bending position set on the work table 3;
5 is a hydraulic cylinder attached to the upper and lower ends of the wire clamper 4 which also serves as a pusher;
When the piston rod of the hydraulic cylinder 5 is extended, the wire clamper 4 which also serves as a pusher moves back away from the work table 3, and when the piston rod is contracted, the wire clamper 4 which also serves as a pusher moves forward toward the work table 3. In addition,
The illustrated embodiment has a structure in which hydraulic cylinders 5 and 5 are attached to the upper and lower ends of the wire clamper 4 that also serves as a pusher, respectively. It is also possible to move the wire clamper 4, which also serves as a presser, back and forth by the single hydraulic cylinder.In this way, a sequence for timing the two cylinders is not required. Since the amount of oil required is small, the operating speed is increased. 6A and 6B indicate a pair of claws for clamping the wire incorporated in the wire clamper 4 which also serves as a presser; one claw 6
A is attached to the shaft of the pinion 7A, and the other pawl 6B is attached to the shaft of the gear 7B that meshes with the pinion 7A. When the rack 8 built into the wire clamper 4 that also serves as a presser is raised by the clamp cylinder 9 attached to the wire clamper 4 that also serves as a presser, the pinion 7A and gear 7B rotate, and the pair of pawls 6A,
6B is closed and the compressed waste paper block 1 is closed as described later.
This is to hold the wire exposed on the recess side. Note that when the piston rod of the clamp cylinder 9 contracts, the rack 8 descends and the pinion 7A
The gear 7B rotates in the opposite direction to the above, and the claws 6A, 6B
are in an open state, and when the claws 6A, 6B are opened to the maximum, the claws 6A, 6B are hidden in the casing of the wire clamper 4 which also serves as a presser.
Reference numeral 10 denotes a bending guide plate disposed opposite the wire clamper 4 which also serves as a presser. In the illustrated embodiment, the left and right guide plates are separated at the center, but this It is also possible to make them continuous, and to open a long hole for an entrance passage for a cutter, which will be described later, only in the middle part thereof. Reference numeral 11 indicates a cutter as a wire cutting means located approximately at the center of the bending guide plate 10, reference numeral 12 indicates a cutter hydraulic cylinder for moving the cutter 11 forward and backward, and reference numeral 13 indicates for allowing the cutter 11 to move forward and backward in a stable state. This is a guide post.

Reference numeral 14 designates a fixed-side delivery roller used when processing the wire 2 after cutting, and 15 designates a moving-side delivery roller that pairs with the fixed delivery roller. The structure is uneven and allows them to interlock with each other.

Reference numeral 16 denotes a hydraulic cylinder for moving the moving side delivery roller 15; 17 indicates a guide post for moving the moving side delivery roller 15 in a stable state; when the hydraulic cylinder 16 extends, the moving side delivery roller 15 moves. moves to the stationary side feed-out roller 14, the peripheral surfaces thereof mesh with each other, the wire 2 is sandwiched between them, and the wire 2 is sent out. Note that a motor for rotationally driving the fixed-side delivery roller 14 is provided below the fixed-side delivery roller 14. Note that in the illustrated embodiment, the roller 1
4 and 15 are arranged facing each other on the left and right sides, but they may be relatively short and may be arranged facing each other vertically. 18 is the delivery roller 1
Fixed blades arranged near 4 and 15, 19 a movable blade that moves back and forth by a hydraulic cylinder 20, 21
is a guide post for the movable blade 19. In addition, the first
In the embodiment shown in the figure, the bending guide plate 10 is in a fixed state with a constant tapered surface, but in order to bend both wings toward the work table 3 side, the left and right guide plates are It is also possible to arrange a drive device such as a hydraulic cylinder on the back side.

In addition, on the back of the fixed bending guide plate 10,
Although not shown, a pair of hydraulic cylinders can be attached to move the bending guide plate 10 back and forth, and by driving the hydraulic cylinders to advance the bending guide plate 10, a wire clamper that also serves as a pusher can be used. It is also possible to shorten the moving distance of 4.

As described above, the folding means for the compressed waste paper block constituting the apparatus of the present invention is arranged between the wire clamper 4 which also serves as a presser and the wire clamper 4 which also serves as a presser disposed on one side of the work table 3. The wire clamping means consists of a rack 8 provided on the wire clamper 4 which also serves as a presser, and a pair of claws 6A and 6B that open and close via a pinion 7A and a gear 7B. It is. Further, the wire cutting means is a bending guide plate 10.
It consists of a cutter 11 driven by a hydraulic cylinder located approximately at the center of the wire, and the wire feeding means consists of a fixed side feeding roller 14 and a moving side feeding roller 15, and a wire cutting means for processing the wire after cutting. It consists of a fixed blade 18 and a movable blade 19 driven by a hydraulic cylinder.

Next, an example will be described in which the apparatus of the present invention is used to treat a tightening wire binding a block of compressed waste paper.

First, the compressed waste paper block 1 is placed on the work table 3 so that the width direction of the work table 3 and the stacking direction of the compressed waste paper block 1 are the same, and the compressed waste paper block 1 is placed at a bending position set on a conveyor or the like. When the compressed waste paper block 1 moves, the movement of the compressed waste paper block 1 is stopped by detection by a limit switch (not shown) or the like (FIG. 4). Next, at this stop position, the hydraulic cylinder 5 is operated to move the presser/wire clamper 4, which serves as a bending means, in the direction of the arrow in FIG. Then, the tip of the wire clamper 4 that also serves as a pusher comes into contact with the center of one side of the compressed waste paper block 1, and when it is advanced further, the opposite side of the compressed waste paper block 1 comes into contact with the bending guide plate 10,
Guided by the tapered surface of the bending guide plate 10, the entire compressed waste paper block 1 is bent into an arched shape (FIG. 5).

Through this bending process, the wire 2 that has been bitten is exposed on the recess 22 side of the compressed waste paper block 1. However, since the wire clamper 4 which also serves as a presser is placed in contact with the approximately center of the recess 22 side, the tension of the exposed wire 2 is suppressed by the tip surface of the wire clamper 4 which also serves as a presser. It has become a state.

Next, the wire clamper 4 which also serves as a presser is moved to the sixth
As shown in the figure, move it back a little away from the compressed waste paper block 1. Then, the wire 2 under tension is also completely pulled away from the compressed waste paper block 1, and in this state, the clamp cylinder 9 incorporated in the wire clamper 4 which also serves as a presser is driven, and the clamp cylinder 9 is driven by the interaction of the pair of claws 6A and 6B. Grasp wire 2 (Figure 6).

After confirming that the wire clamper 4 that also serves as a presser has clamped the wire 2, the wire clamper 4 that also serves as a presser is moved back further away from the compressed waste paper block 1, and tension is applied to the wire 2 on the bending guide plate 10 side. Multiply (Figure 7). Note that the compressed waste paper block 1 itself has considerable gravity, and its stacking direction is the same as the width direction of the work table 3 consisting of a conveyor or the like. Even when the pressing force is released, there is no fear that the compressed waste paper block 1 bent into an arched shape will return to its original state.

Next, in this state, the cutter hydraulic cylinder 12 is operated to drive the cutter 11 serving as wire cutting means into the approximately center of the protruding side 23 of the compressed waste paper block 1 (FIG. 8). That is, wire 2
After electrically confirming that the wire clamper 4, which also serves as a presser and is still gripped, has moved back and stopped in the state shown in Figure 7, the hydraulic cylinder 12 for moving the cutter 11 forward is driven, and the cutter 11 is moved forward. The wire 2 is then driven into the center of the protruding side 23 of the compressed waste paper block 1, but as mentioned above, a considerable amount of tension is applied to the wire 2 on the protruding side 23, so the entry of the cutter 11 ensures the cutting. It will be done.

When the cutter 11 enters the protruding side 23 of the compressed waste paper block 1, the protruding part of the compressed waste paper block 1 is pushed back toward the recess 22 side, and the compressed waste paper block 1 in the folded state is returned to its original position before folding. The condition may return (Figure 8).

After confirming that the wire 2 has been cut, the piston rod of the hydraulic cylinder 12 for the cutter is moved backward, and a wire clamper 4 which also serves as a pusher is installed near the work table 3 to pull out the wire 2 from the compressed waste paper block 1. 1
4, 15 to the rear position (Fig. 9).
After retracting to a predetermined position, move the moving side delivery roller 15 and move the fixed side delivery roller 14.
After the wire 2 is held down between the two rollers 14 and 15, the wire 2 is cut by the interaction of the fixed blade 18 and the movable blade 19, which constitute wire cutting means (FIG. 10). Then, the feed rollers 14 and 15 are sequentially rotated to feed out the wire 2 by a predetermined amount, and the fixed blade 18 and the movable blade 1 are fed out by a predetermined amount.
9, the wire 2 is cut, and this operation is repeated thereafter to complete the processing of the wire 2 (FIG. 11).

As described above, in the device of the present invention, the wires that are deeply wedged inside the compressed waste paper block can be partially exposed and easily clamped by bending the compressed waste paper block into an arched shape. At the same time, tension is applied to the wire on the protrusion side of the compressed waste paper block to ensure that the cutter can cut the wire, and the cut wire is smoothly sent outward by the feeding means, and the wire cutting means The wire is cut in fixed lengths at a time, and each operation can be performed automatically and continuously according to a predetermined schedule. The device of the present invention is intended for compressed waste paper blocks tightened by a plurality of wires, but the present invention can of course also be applied to compressed pulp blocks tightened by a plurality of wires. It goes without saying that the scope of the present invention also extends to compressed pulp blocks.

〔Effect of the invention〕

Therefore, according to the device of the present invention, when cutting,
There is no need to worry about the waste paper being rubbed together with the wire as in the past, and the generation of scraps can be minimized, which has a great effect on improving the working environment. Further, tension can be applied to the wire on the side into which the cutter is driven, so that the wire can be cut reliably and easily, and accidents caused by incomplete cutting can be prevented.

Furthermore, since the wire after cutting is held between the wire clampers which also serve as pushers, the wire can be smoothly fed out by the wire feeding means, and subsequent wire processing becomes much easier.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view showing an embodiment of the tightening wire processing device of the present invention, Fig. 2 is a partial detailed view showing an embodiment of a wire clamper that also serves as a presser, and Fig. 3 is a detailed view of a wire clamper that also serves as a presser. FIGS. 4 and 5 are schematic diagrams showing the folding process of a compressed waste paper block, and FIGS. 6 and 7 are exposed on the concave side of the folded compressed waste paper block. 8 and 9 are schematic diagrams showing the state in which the wire on the protrusion side of the compressed waste paper block is cut, and FIG. 10 and FIG. 11 are schematic diagrams showing the state when processing the wire after cutting. 1: Compressed waste paper block, 2: Wire, 3: Work table, 4: Wire clamper that also serves as a presser,
5: Hydraulic cylinder, 6A: Claw, 6B: Claw, 7
A: Pinion, 7B: Gear, 8: Rack, 9: Clamp cylinder, 10: Bending guide plate, 11:
Cutter, 12: Hydraulic cylinder for cutter, 1
3: Guide post, 14: Fixed side delivery roller, 15: Moving side delivery roller, 16: Hydraulic cylinder, 17: Guide post, 18: Fixed blade, 19: Moving blade, 20: Hydraulic cylinder, 2
1: Guide post, 22: Recess, 23: Projecting side.

Claims (1)

[Claims] 1. A compressed waste paper block folding means for folding a compressed waste paper block tightened with a plurality of wire hooks into an arched shape on a work table consisting of a conveyor, etc., and a compressed waste paper block folded by the folding means. wire clamping means for clamping the wire exposed on the side of the recess; wire cutting means for cutting the wire on the protrusion side of the compressed waste paper block bent into an arched shape; and the wire cut by the wire cutting means. and a wire cutting means for cutting the wire fed out by the wire feeding means, and the bending means is a pressing force that is moved back and forth by a cylinder disposed on one side of the work table. It consists of a wire clamper that also serves as a child wire clamper, and a bending guide plate that has a certain slope and is disposed opposite to the wire clamper that also serves as a pusher. The wire cutting means is located in an opening provided at approximately the center of the bending guide plate, and is moved back and forth by a cylinder so that its cutting edge enters into the compressed waste paper during cutting. The compressed waste paper tightening wire is characterized in that the wire feeding means consists of a fixed side feeding roller and a movable side feeding roller, and the wire cutting means consists of a fixed blade and a movable blade that reciprocates by a cylinder. processing equipment.