JPS6226978B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wire clamping device used in a removing device for removing wires binding compressed waste paper.

After waste paper such as newspapers and magazines is collected, it is formed by a waste paper company into compressed waste paper 10 as shown in FIG. This compressed waste paper is transported, crushed in a crusher at a paper mill, melted, and recycled. When using the crusher, it is necessary to remove the wire from the compressed waste paper.

A removal device 14 shown in FIG. 2 can be considered as a device for performing this work (see Japanese Patent Application No. 58-211997). This device 14 detects compressed waste paper 10 transported by a conveyor 16 with an optical sensor 18, stops it, and places a wire 1 at approximately the center of one side of the compressed waste paper.
2 is cut by a cutting device 20 (see FIGS. 3A and B), and then the wire 12 is clamped by a loosening device 24 near the corners 22 at both ends of this side surface to remove the corner 2.
2 (see C in the same figure), and then take it off from the opposite side with the hook 26 (see D in the same figure). The reason why the wire 12 is separated from the corner 22 in this operation is because the wire 12 is still biting into the corner 22 and cannot be removed by the hook 26 if it is only cut. It should be noted that the contact between the corner 28 on the hook 26 side and the wire 12 does not hinder the work in any way.

The present invention mainly focuses on the loosening device 2 of this removal device 14.
4 relates to a wire clamping device used to clamp the wire 12.

In addition to the wire loosening device for compressed waste paper, the present invention is also applicable to
It can also be used to grip binding wires, strings, etc. of pulp, cotton, etc.

BACKGROUND TECHNOLOGY In the past, the work of removing wire from compressed waste paper was entirely done manually, and the operator also manually grabbed the wire to loosen it, and no automatic equipment existed.

Problems to be solved by the invention This lack of automation is wire 1.
Since wire 2 is not always in a fixed position, the wire clamping device must be able to securely hold wire 1 regardless of its position.
The ability to hold 2 is required, but
This is because it is difficult to satisfy such requirements.

The wire clamping device of the present invention was developed to meet this requirement.

Means for Solving the Problems That is, the present invention has two clamping pieces in which a plurality of rod-shaped bodies are projected in a line at regular intervals, and these clamping pieces are brought together, and the rod-shaped bodies of both clamping pieces are brought together. This wire clamping device for compressed waste paper is characterized in that it has a drive unit that moves one clamping piece relative to the other clamping piece and clamps the wire between the rod-shaped bodies of both clamping pieces.

Therefore, in this clamping device, when the rod-shaped bodies of both clamping pieces are pressed together against the compressed waste paper, and the tip of the rod-shaped body enters slightly into the compressed waste paper, the wire is always held regardless of its position. When the wire is positioned between the matched rod-shaped bodies and then one clamping piece is moved relative to the other clamping piece, the wire is reliably clamped between the rod-shaped bodies of both clamping pieces.

Embodiment Hereinafter, an example in which the present invention is applied to a loosening device 24 will be described with reference to FIGS. 4 to 7.

In the loosening device 24, 30, 30 are columns, and a rail 3 running parallel to the side of the conveyor 16 is used.
It is posted on 2. A fixed column 34 is fixed on a rail 32 on the side of this column 30, and an air cylinder 3 is attached to this fixed column 34.
6 and 36, both columns 30 and 30 move in unison on the rail 32 from side to side. Column 30,
Support rods 38, 38 extending forward are protruded from the lower part of the clamping device 40, and the clamping piece 42 of the clamping device 40 is attached hereto.
The lower part of the is slidably connected. Furthermore, this clamping piece 42 is connected to air cylinders 48, 50 attached to the columns 30, 30 at two upper and lower support points 44, 46, and the operation of these air cylinders 48, 50 causes the entire clamping device 40 to move forward and backward. Can be moved and tilted.

The clamping device 40 includes a clamping piece 42, a clamping piece 52, and a driving section 54 made of an air cylinder or the like.
The entire clamping piece 42 extends vertically and is attached to the columns 30, 30 as described above, and six rod-shaped bodies 56, . . . protrude in a line at regular intervals from the front.
The clamping piece 52 also has almost the same configuration as the clamping piece 42, and is attached to the clamping piece 42 using a bolt 58 and a long hole 60 so as to be movable up and down, and has six rod-shaped bodies 6 in front.
2... protrude in a line at the same intervals as the rod-shaped bodies 56,.... The driving part 54 is attached to the upper part of the clamping piece 42 , is coupled to the clamping piece 52 , and moves the clamping piece 52 up and down along the clamping piece 42 . At this time, when the clamping piece 52 is raised, the rod-shaped bodies 56,..., 62,...
Five of them come together, and in the lowered state, all six come together. In addition, when the clamping piece 52 is raised and each rod-shaped body 56..., 62,... is put together,
The tip has a pointed shape.

Limit switches 64 and 66 projecting forward are provided near the support points 44 and 46 of the clamping piece 42, respectively, and the upper limit switch 64 is connected to the upper air cylinder 48 and the lower limit switch 6.
6 is connected to the lower air cylinder 50, and the clamping device 40 detects that the tips of the rod-like bodies 56,..., 62,... are close enough to slightly enter the compressed waste paper 10, and the air cylinders 48, 50 are connected to each other. to stop.

This loosening device 24 has the above-mentioned structure, and is operated by a control section (not shown) as follows. Firstly, the columns 30, 30 are the rod-shaped bodies 5 of the clamping device 40.
6,..., 62,... are located slightly closer to the cutting device 20 than the corner 22 of the compressed waste paper 10, and the wire 1
After 2 is disconnected, the air cylinders 48 and 50 are actuated and the clamping device 40 begins to move forward, and is stopped by the actuation of the limit switches 64 and 66. At this time, the clamping pieces 52 are in a raised state, and the clamping pieces 42, 52 are made parallel to the side surface of the compressed waste paper 10 by the limit switches 64, 66, and the rod-shaped bodies 56,...,
The tips of 62, . . . are all slightly intruded into the side surface of the compressed waste paper 10. Next, the drive section 5
4, the clamping piece 52 is lowered, and the wire 12 is clamped between the rod-shaped body 56, . . . and the rod state 62, . The cutting device 20 is operated to cut the columns 30, 30 along the rail 32.
Move the wire 12 in the direction away from the compressed waste paper 1
0 corner 22. After completing the work of loosening the wire 12, the clamping device 40 raises the clamping piece 52 to release the wire 12, and the columns 30, 30 are moved back to their original positions.

As is clear from the above-described operation, this clamping device 40 fits between the rods 56, . . . , 62, . By descending, it is securely clamped by the rod-shaped bodies 56, . . . , 62, .

Effects of the Invention Therefore, according to the clamping device of the present invention, even if the wire is deviated from its normal position or the standard of the position where the wire is tied is different, the clamping device can be used without making any adjustments to the device. You can hold the wire as is.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of compressed waste paper, FIG. 2 is a plan view of the wire removing device, and FIG. 3 is an explanatory view showing the operation of the wire removing device. 4 to 7 show a loosening device using the wire clamping device of the present invention, FIG. 4 is a front view, FIG. 5 is a right side view, FIG. 6 is a left side view,
FIG. 7 is a sectional view taken along the line -- in FIG. 4. 10... Compressed waste paper, 12... Wire, 14... Wire removing device, 24... Loosening device, 40... Wire clamping device, 4
2, 52... Holding piece, 54... Drive section, 56,..., 6
2,...rod-shaped body.

Claims (1)

[Claims] 1. It has two clamping pieces with a plurality of rod-shaped bodies protruding in a line at regular intervals, and when these clamping pieces are put together, and the rod-shaped bodies of both clamping pieces are put together, one clamping piece can be attached to the other clamping piece. 1. A wire clamping device for compressed waste paper, characterized in that it has a drive unit that moves the wire between the rod-shaped bodies of both clamping pieces and clamps the wire between the rod-shaped bodies of both clamping pieces.