JPH08282642A - Tying string-removing device for plate-form article - Google Patents

Abstract

PURPOSE: To totally automate the removal of a tying string, and eliminate a manual work by providing a lateral brushing means which makes a laminal plate-form article laterally slip by pressing the laminal plate-form article from both sides by lateral pressing pieces on different stages, and stretches a tying string, and an engaging pin, etc., with which the tying string can be engaged when the pressing pieces retract. CONSTITUTION: By stretching a cylinder 9, pressing pieces 12a, 12b are pressed to one side of a laminal plate-form article 2 on a roller conveyor 3, and the other side of the laminal plate-form article 2 is made to collide with arranging plates 5, 5. By stretching a cylinder 6, an intermediate part of the laminal plate-form article 2 is laterally slipped into a stepped form by a pressing piece 7, and a tying string is stretched. Then, by lowering a quenching trowel 26, the tying string 1 is burned off, and at the same time, engaging pins 13 are projected from both side surfaces of the pressing piece 12b, and the engaging pins 13 are inserted in lifted parts of the tying string. Then, by contracting the cylinder 9, the pressing pieces 12a, 12b are retracted, and the tying string 1 after the cutting is separated from the laminal plate-form article 2, and the tying string 1 is removed by suction-drawing the tying string 1 by a suction port 24a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cutting and removing a binding cord that binds a plurality of plate-like objects such as corrugated cardboard.

[0002]

2. Description of the Related Art Corrugated cardboard, which is assembled in a corrugated cardboard box for packaging, for example, is generally used by stacking several layers in layers and binding them with a synthetic resin tying string for transportation or storage. The worker used the scissors to cut the binding string of the object on the conveyor to remove it.

[0003]

However, in the above removing work, if the cut string is simply pulled by hand, the string is caught in the edge of the corrugated cardboard, or the knot is caught, so that it cannot be removed well. For this reason, its removal was a labor-intensive task.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is an apparatus for removing a binding string from a layered plate-shaped object obtained by bundling a plurality of plate-shaped objects with a binding string. Then, the layered plate-like material stopped on the roller conveyor is pressed from both sides by stepped pressing pieces so that the layered plate-shaped material is laterally displaced and the binding string is tensioned. A hooking pin that is provided so as to move and that can hook the binding string when the pressing piece moves backward, and a cutting means that cuts the binding string that is stopped on the roller conveyor, It is characterized in that it is provided with a suction port for vacuuming the binding cord. Further, the method for removing a binding string according to the present invention is a method for removing the binding string from a layered plate-shaped object obtained by bundling a plurality of plate-shaped objects with a binding string, and the layered plate stopped on a roller conveyor. After pressing the strip-shaped material from both sides with stepped pressing pieces, the layered plate-shaped material is laterally displaced and the binding string is tensioned, the binding string is cut, and the hooking pin is projected from the side surface of the pressing piece. It is characterized in that the binding strips after cutting are separated from the layered plate-like material by retreating the pressing piece, and vacuum suction is performed at the suction port. A specific example of the cutting means is an electrothermal baking iron.

[0005]

Operation: The layered plate-like material is laterally displaced by the horizontal shifting means to tension the binding string, thereby facilitating the cutting of the binding string, and at the same time, hooking the hooking pin to plate the binding string after cutting. It is possible to easily separate the binding object from the plate-shaped object so that the plate-shaped object does not easily get caught or the knot is not caught when the binding string is pulled out.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a layered plate-like product 2 obtained by bundling a plurality of plate-like products such as corrugated cardboard with synthetic resin binding cords 1, 1.
The removing device of the present invention is intended to cut and remove the two binding cords 1 and 1. 2 shows a cross-sectional view of this removing device, FIG. 3 shows a plan view, and FIG. 4 shows a cross-sectional view taken along the line AA of FIG. In the figure, 3 is a roller conveyor that conveys the layered plate 2 in the direction of the arrow and detects it by a position detection sensor such as a photoelectric tube to stop the layered plate 2 at the position shown.

On both side edges of the roller conveyor 3, there are provided horizontal shifting means 4 comprising a pair of aligning devices 4a and 4b. That is, one of the aligning devices 4a is fixedly installed vertically with a predetermined interval so that the linear prismatic aligning plates 5 and 5 face one side surface of the layered plate-like object 2, and the aligning plates 5 and 5 are separated from each other. Further, a pressing piece 7 is provided on the roller conveyor 3 so that the pressing piece 7 can be moved back and forth in the horizontal direction by the cylinder 6. The other aligning device 4b is provided with a cylinder 9 horizontally on a frame 8 fixed to one side edge of the roller conveyor 3 and a mounting plate 11 so that the cylinder 9 can move back and forth. A pair of pressing pieces 12 in the form of linear prisms which are vertically spaced apart from each other on the front surface.
a and 12b are fixed. A cylinder (not shown) is provided inside the lower pressing piece 12b, and hooking pins 13 are provided so as to move in and out in opposite directions from the side surfaces of the pressing piece 12b by the operation of the cylinder. .
Reference numerals 14 and 14 are guide rods provided on the back surface of the mounting plate 11, and reference numerals 15 and 15 are thrust bearings provided on the frame 8.

A mounting plate 22 that can be moved up and down by a cylinder 21 is mounted on a stand 20 that is established on one side edge of the layered plate-shaped product 2.
And a cutting means 23 and suction ports 24a and 24b are provided on the mounting plate 22. The cutting means 23 is the mounting plate 2
An electric firing iron 26 is urged downward by a coil spring 27 on an arm 25 extending horizontally from the front edge of the shaft 2 to suspend the shaft.

The suction ports 24a and 24b are opened downward on the lower side of the mounting plate 22 and are connected to a vacuum suction blower (not shown) via a suction duct 28. And the coil spring 29
Is urged downward by. In addition, one suction port 24
b is the guide rods 30, 30 due to the operation of the cylinder 31.
Since it is set on the movable plate 32 which can be slid along, both suction ports 24a,
The interval of 24b can be adjusted.

In the binding string removing device constructed as described above, the cylinder 9 is extended and actuated to push the pressing pieces 12, 12 to one side of the layered plate 2 stopped on the roller conveyor 3. While the other side of 2 is hit against the alignment plates 5 and 5, the cylinder 6 is extended and the intermediate layer portion of the layered plate 2 is laterally displaced in a stepwise manner by the pressing piece 7 as shown in FIG. . As a result, the binding strings 1, 1 can be tensioned.

Next, the cylinder 21 is actuated to move the mounting plate 2
2 and the baking iron 26 attached to the mounting plate 22 is lowered, the lower end of the baking iron 26 is pressed against the binding cords 1 and 1, and the binding cords 1 and 1 are burned out and pressed as shown in FIG. The hooking pins 13 and 13 are projected from both side surfaces of the piece 12b, and the hooking pins 13 and 13 are inserted into the floating portions of the binding cords 1 and 1 formed by laterally shifting the layered plate-like object 2.

Then, by contracting the cylinder 9 and retracting the pressing pieces 12a and 12b as shown in FIG. 8, the binding strings 1 and 1 after cutting are separated from the layered plate 2, and the suction ports 24a and 24b are used to remove the binding strings 1 and 1. The binding cords 1 and 1 are vacuumed. Reference numeral 35 denotes a sensor which is provided in the suction duct 28 and detects when the binding cords 1, 1 pass through the suction duct 28. In this way, the binding cords 1 and 1 are removed, and when this is detected, the mounting plate 22 is raised again as shown in FIG. 9 and a series of binding cord removal work is completed. Although the baking iron 26 is used as the cutting means 23 in this embodiment, a cutting means such as scissors or nippers may be used.

[0013]

As described above, the apparatus for removing the binding cord of the plate-like object of the present invention facilitates the cutting of the binding cord by laterally shifting the layered plate-like material by the lateral shifting means and tensioning the binding cord. At the same time, the binding pin after being cut can be easily separated from the plate-like object by hooking the hooking pin so that the plate-like object does not get caught or the knot is not caught when the binding string is pulled out. Therefore, the removal of the binding cord can be completely automated, and there is a beneficial effect that the troublesomeness due to manual work can be eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view of a layered plate-like object.

FIG. 2 is a cross-sectional view of a device for removing binding cords of a plate-like object showing one embodiment of the present invention.

FIG. 3 is a plan view of FIG. 2;

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is an operation state diagram of FIG.

6 is an operation state diagram of FIG. 5.

FIG. 7 is an operation state diagram of FIG. 6;

8 is an operation state diagram of FIG. 7.

9 is an operation state diagram of FIG. 8.

[Explanation of symbols]

 1, 1 Bundling string 2 Layered plate-like material 3 Roller conveyor 4a, 4b Aligning device 4 Horizontal shifting means 5, 5 Linear alignment plate 6 Cylinder 7 Pressing piece 8 Frame 9 Cylinder 11 Mounting plate 12a, 12b Pressing piece 13 Hanging pin 15 Thrust Bearing 20 Stand 21 Cylinder 23 Cutting means 24a, 24b Suction port 25 Arm 26 Burning iron 27 Coil spring 28 Suction duct 29 Coil spring 30 Guide rod 32 Movable plate

Claims (3)

[Claims] 1. A device for removing a binding string from a layered plate formed by bundling a plurality of plate-shaped objects with a binding string, wherein the layered plate stopped on a roller conveyor is stepped from both sides. A lateral slide means for pressing the layered plate-like object laterally by pressing with the pressing piece to tension the binding string, and a binding means provided so as to move in and out from the side surface of the pressing piece when the pressing piece moves backward. It is characterized by comprising a hooking pin capable of hooking a string, a cutting means for cutting the banding string of the layered plate-like object stopped on the roller conveyor, and a suction port for vacuum-sucking the cut banding string. A device for removing binding cords of plate-like materials. 2. A method of removing a binding plate from a layered plate formed by bundling a plurality of plate-shaped objects with a binding string, wherein the layered plate stopped on a roller conveyor is stepped from both sides. To press the pressing piece to laterally displace the layered plate-like material and to cut the binding string in a state where the binding string is tensioned, and project the hooking pin from the side surface of the pressing piece, and then retract the pressing piece. A method for removing a binding string of a plate-like object, characterized in that the binding string after cutting is separated from the layered plate-like object by means of vacuum suction by a suction port. 3. The binding string removing device for a plate-like object according to claim 1, wherein the cutting device is an electrothermal baking iron.