JP2573567Y2 - Shearing machine work support device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work supporting device of a shearing machine for cutting a plate-shaped work.

[0002]

2. Description of the Related Art A conventional shearing machine has a back stop d for positioning a cutting position of a work c behind a fixed blade b fixed to a table a as shown in FIG.
A plurality of support girders e are provided to support the tip side of the workpiece c to be cut from below. A work fixing device f for fixing the work c to the table a at the time of cutting is provided on the front side of the fixed blade b, and the work c fixed by the work fixing device f can be moved up and down freely. The cutting is performed between the movable blade h attached to the beam g and the fixed blade b, and the cut work c is discharged by the chute i.

In the above-mentioned shearing machine, in order to prevent the movable blade h and the support beam e from interfering with each other at the time of cutting,
The support beam e is lowered to the position shown by the imaginary line in FIG. For this reason, the dead weight of the cut work c is applied to the uncut portion, and the load is maximized at the cutting end, and the cutting end portion is deformed. Conventionally, in order to prevent such a problem, a pad m which can be moved up and down by a cylinder k is provided on the cutting end side as shown in FIG. 2 to support the work c from below, so that the cutting end of the work c is deformed. Is prevented from doing so.

[0004]

However, in the conventional work supporting apparatus in which the pad is moved up and down by the cylinder K as in the prior art, the work c may remain on the pad m even after cutting, and the work c may not be discharged. In addition, since the cylinder k protrudes behind the table a, when a work transfer device for unloading the cut work c is installed, the cylinder k is in the way and the work transfer device cannot be installed. was there. This invention has been made in order to improve the above-mentioned problem, and it is an object of the present invention to provide a work supporting device of a shearing machine in which a cut work does not remain on a pad and does not hinder installation of a work transfer device. It is the purpose.

[0005]

According to the present invention, in order to achieve the above object, a plate-like work is cut between a fixed blade fixed to a table and a movable blade attached to a vertically movable movable beam. In a shearing machine for processing, a support lever having a pad for supporting a cutting end side of a work from below is provided at one end of the table, and an intermediate portion of the support lever is rotatable toward the table by a support shaft. And a fluid pressure cylinder mounted on the outer surface of the shearing machine main body is connected to the other end of the support lever.

[0006]

[Work] By rotating the support lever after cutting according to the above structure, the work on the pad falls, so that the work does not remain on the pad, and the fluid pressure cylinder is obstructed when the work transfer device is installed. It won't be.

[0007]

Embodiment An embodiment of the present invention will be described in detail with reference to FIGS. In FIG. 3, reference numeral 1 denotes a main body of a shearing machine, a fixed blade 2 fixed on a table 1a,
The plate-shaped work 5 can be cut between the movable blades 4 attached to the movable beam 3 that can move up and down.
Behind the fixed blade 2, a back stop 6 for positioning the cutting position by abutting the tip of the work 5 to be cut, and a work transfer device 7 for unloading the cut work 5 are installed and fixed. A work fixing device 8 for fixing the work 5 to be cut between the blade 1 and the table 1a is provided on the front side of the blade 2.

On the other hand, reference numeral 10 in the drawing denotes a work supporting device of the present invention installed on the cutting end side of the table 1a.
Two. One end of the support lever 12 is the body 1
A pad 13 is attached to the tip of the work 5 to support the cutting end side of the workpiece 5 being cut from below. The other end of the support lever 12 projects out of the main body 1 as shown in FIG.
The tip of the fourth piston rod 14 a is pivotally connected by a pin 16. The fluid pressure cylinder 14 is mounted on a side surface of the main body 1 via a bracket 17 so that the support lever 12 can be turned from a work supporting position indicated by a solid line in FIG. 4 to a position indicated by a virtual line. In the drawing, reference numeral 18 denotes a plurality of support beams which are moved up and down by a fluid pressure cylinder (not shown).

Next, the operation of the work supporting apparatus 10 will be described. When the work 5 is positioned and cut, the support lever 12 is rotated by the fluid pressure cylinder 14 to the solid line position in FIG. As a result, since the cutting end of the work 5 is supported from below, the work 5 can be cut without deforming the cutting end even if the weight of the cut work 5 is applied to the uncut portion. When the cutting of the work 5 is completed and a limit switch (not shown) detects this, the fluid is supplied to the bottom side of the hydraulic cylinder 14 and the hydraulic cylinder 14 is extended, so that the support lever 12 is turned to the position of the imaginary line. Then, the work 5 on the pad 13 is dropped onto the work transfer device 7 and carried out by the work transfer device 7. When the work 5 drops and a predetermined time elapses, fluid pressure is supplied to the rod side of the fluid pressure cylinder 14 by a signal from a timer (not shown), so that the support lever 12 returns to the original position and the pad 1
The upper surface of 3 is almost the same height as the cutting edge 2a of the fixed blade 2, and waits for the next cutting.

[0010]

According to the invention, as described in detail above, a pad for supporting the cutting end of a work from below is provided on a support lever which is rotated by a hydraulic cylinder, and the support lever is tilted after the work is cut. Therefore, it is possible to solve a problem that the cut work remains on the pad and is not carried out. In addition, since the hydraulic cylinder for rotating the support lever is provided outside the main body, the work transfer device for unloading the cut work does not interfere with the hydraulic cylinder, so that the work transfer device can be easily installed. Will be able to do it.

[Brief description of the drawings]

FIG. 1 is a side view showing a work supporting device of a conventional shearing machine.

FIG. 2 is a front view showing a work supporting device of a conventional shearing machine.

FIG. 3 is a vertical sectional side view of a shearing machine equipped with a work supporting device according to an embodiment of the present invention.

FIG. 4 is an enlarged side view of a work supporting device according to an embodiment of the present invention.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Shearing machine main body, 1a ... Table, 2 ... Fixed blade, 3 ... Movable beam, 4 ... Movable blade, 5 ... Work, 11
... Support shaft, 12 ... Support lever, 13 ... Pad, 14 ... Hydraulic cylinder.

Claims (1)

(57) [Scope of request for utility model registration] 1. A fixed blade 2 fixed to a table 1a,
In a shearing machine for cutting a plate-shaped work 5 between movable blades 4 attached to a movable beam 3 which can move up and down, a pad for supporting a cutting end side of the work 5 from below at one end of the table 1a. A support lever 12 having one end 13 is provided, and an intermediate portion of the support lever 12 is rotatably supported by the support shaft 11 on the table 1a side. Hydraulic cylinder 14 mounted on the outer surface of
Work supporting device for shearing machine.