JPS6226977B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a wire loosening device for removing wires binding compressed waste paper, which loosens the wires after cutting them to make them easier to take back.

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 with a cutting device 20 (see Fig. 3 A and B), then the wire 12 is separated from the corner 22 by a loosening device 24 near the corners 22 at both ends of this side surface (see Fig. 3 C), and then It is taken up from the opposite side with a hook 26 (see D in the same figure). In this operation, the wire 12 is separated from the corner 22 because the wire 12 is still biting into the corner 22 and cannot be removed with the hook 26 even if the wire 12 is simply cut. Note 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 relates primarily to a loosening device 24 for use in the removal device 14 described above.

In addition to compressed waste paper, the present invention can also be applied to loosen binding wires, strings, etc. of pulp, cotton, etc.

BACKGROUND TECHNOLOGY In the past, the work of removing wires from compressed waste paper was done entirely by hand, and the work of loosening the wires was also done by hand, and no automatic equipment existed.

Problems to be Solved by the Invention The reason why automation has not been implemented is because the necessity of loosening the wire was not known in the technical fields of depalletizers and other devices, since the wire does not get wedged in normal cargo. This is because it was not clear how to handle the wire in order to loosen it, and whether it was suitable for mechanization.

The present invention was devised for the first time with the purpose of providing a device that specifically automates this wire loosening work.

Means for Solving the Problems That is, the present invention includes a column that is placed on a rail parallel to the side surface of compressed waste paper and moves horizontally from side to side near the corners of the compressed waste paper, and a column that is attached to this column,
A support stand that moves back and forth toward the compressed waste paper, a holding device installed on the front side of this support stand to hold a wire that ties up the compressed waste paper horizontally, and a support stand that moves until the tip of this holding device reaches the compressed waste paper. a control unit that moves the column forward toward the compressed waste paper, operates a holding device to hold the wire, and then moves the column along the rail while retracting the support base to move the wire away from a corner of the compressed waste paper; This is a wire loosening device for compressed waste paper, characterized by having the following features.

Function: Therefore, in this wire loosening device, the wire is held near the corner and pulled away from the corner, so that the wire that has become wedged in the compressed waste paper can be easily loosened.

EXAMPLES The present invention will be specifically explained below using examples shown in FIGS. 4 to 10. In this device 24,
Columns 30 and 30 are placed on a rail 32 running parallel to the side of the conveyor 16. A fixed column 34 is fixed on a rail 32 on the side of this column 30, and air cylinders 36, 36 attached to this fixed column 34 cause both columns to
0 and 30 move left and right on the rail 32 as one. Support rods 38, 38 extending forward are protruded from the lower portions of the columns 30, 30, into which the lower portion of the support stand 40 is slidably fitted. Further, this support stand 40 is connected to driving parts 46, 48 such as air cylinders attached to the columns 30, 30 at two upper and lower support points 42, 42, and the entire structure is moved by the operation of these driving parts 46, 48. It can move forward and backward and tilt. Five holding devices 50 are attached to the front surface of the support stand 40 to match the heights of the wires 12 of the compressed waste paper 10. As shown in FIGS. 8 to 10, this holding device 50 includes a fixed lower clamp holding piece 52 with a sharp tip, and an upper clamp holding piece 56 overlapping the fixed lower clamp holding piece 52 with a sharp tip and opened and closed by an air cylinder 54. It consists of. Support point 4 of support stand 40
2 and 44 are provided with limit switches 58 and 60 that protrude forward, respectively. The upper limit switch 58 is connected to the upper driving part 46, the lower limit switch 60 is connected to the lower driving part 48, and , both gripping pieces 5 of the holding device 50
It is detected that the tips of the compressed waste paper 10 come into contact with the compressed waste paper 10, and the operating parts 46 and 48 are stopped.

This loosening device 24 has the above-mentioned structure, and is operated by a control section (not shown) as follows. First, the columns 30, 30 are positioned so that the upper and lower clamping pieces 52, 56 are slightly closer to the cutting device 20 than the corner 22 of the compressed waste paper 10, and after the wire 12 is cut,
The drive units 46 and 48 are actuated and the support base 40 begins to move forward, and the limit switches 58 and 60 are activated to stop the support base 40. At this time, each holding device 50
The clamping pieces 52 and 56 are in an open state, and the limit switches 58 and 60 cause the support base 40 to
The upper and lower holding pieces 5 are parallel to the sides of the compressed waste paper 10.
The tips of the paper sheets 2 and 56 are all in almost contact with the side surface of the compressed waste paper 10. Next, the air cylinder 54 is operated to lower the upper clamp holding piece 56 to pinch the wire 12, and while the support base 40 is moved backward by the drive units 46, 48, the air cylinders 36, 36 are operated to move the columns 30, 30 to the rail 32. The wire 12 is moved away from the cutting device 20 along the compressed waste paper 1
0 corner 22. After completing the work of loosening the wire 12, the holding device 50 releases the wire 12,
Columns 30, 30 are moved and returned to their original positions.

In addition, in the device 24, the driving parts 46, 48 provided at the upper and lower positions and the limit switches 58, 60 connected thereto are configured to correctly hold the tip of the holding device 50 even when the compressed waste paper 10 is deformed into a diamond-shaped cross section. 10, the mechanism for tilting the support base may be omitted if there is another structure, such as a frame, for regulating the deformation of the compressed waste paper.

Furthermore, the holding device is not limited to the one in this example, and may have other configurations, such as a configuration in which the wire is hooked using a hook, as long as it can hold the wire to the extent that it can be separated from the corner. Any one can be used.

Effects of the Invention As described above, the loosening device of the present invention performs the work of separating the wire from the corners of compressed waste paper, etc. by holding the wire on the side of the compressed waste paper, etc., and moving it along this surface while separating it from this surface. Therefore, the wire only needs to be moved with a very small force, and the operation is easy and reliable, and the structure is simple and highly practical.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of compressed waste paper, FIG. 2 is a plan view of a wire removing device using the present invention, and FIG. 3 is an explanatory view showing the operation of this wire removing device. Figure 4~
Fig. 10 shows an embodiment 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 plan view, and Fig. 8 is a holding device portion. 9 is an enlarged right side view of the same, and FIG. 10 is a plan view of the same. 10... Compressed waste paper, 12... Wire, 24... Wire loosening device, 30... Column, 32... Rail, 34... Fixed column, 36... Air cylinder, 40... Support stand, 4
2, 44...support point, 46, 48...driver, 50...
Holding device, 52...Lower clamp holding piece, 56...Upper clamp holding piece, 5
8,60...Limit switch.

Claims (1)

[Claims] 1. A column that is placed on a rail parallel to the side surface of the compressed waste paper and moves horizontally from side to side near the corners of the compressed waste paper, and a support that is attached to this column and moves back and forth toward the compressed waste paper. , a holding device provided on the front side of the support stand for holding a wire for horizontally binding the compressed waste paper, and advancing the support stand toward the compressed waste paper until the tip of the holding device reaches the compressed waste paper;
and a control unit that operates the holding device to hold the wire, and then moves the column along the rail while retracting the support base to move the wire away from the corners of the compressed waste paper. Waste paper wire loosening device. 2. A drive unit that supports the upper and lower parts of the support base from the column and moves the support base back and forth, and a drive unit that is installed near each of the support points to detect compressed waste paper and stop the drive unit that drives the support points. A wire loosening device for compressed waste paper according to claim 1, further comprising a limit switch for making the tip of the holding device parallel to the surface of the compressed waste paper.