JPH06269876A - Device for reversing press left material - Google Patents

Abstract

PURPOSE:To provide a press scrap material reversing device which can reverse a scrap material cut from a steel plate with a simple constitution. CONSTITUTION:A receiving part 9 receiving a scrap material 10 generating after a required part is cut from a steel plate is arranged freely rotating by making a spindle 7 as a center, a catching part 11 catching the scrap material 10 is provided on an end 9a of this receiving part 9, and together a weight 14 is arranged on the other end 9b lower than a line 12 joining the catching part 11 and an axial center 7a of the spindle 7, when the scrap material 10 is dropped on the receiving part 9, the receiving part 9 is constituted so that the scrap material 10 is descended so as to be rotated in the arrow mark A direction by making the spindle 7 as the center.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press surplus material reversing device for reversing a surplus material generated after cutting a desired shape panel from a thin steel plate in a cutting process of a press line.

[0002]

2. Description of the Related Art Generally, in a cutting process of a press line of an automobile factory, when a panel having a desired shape is cut from a rolled steel plate, a surplus material is generated around the shape. Is being processed.

In addition, when this surplus material is used as a material for a small-sized pressed part, it is necessary to invert because the steel sheet has the front and back sides, and the inversion is often done manually. On the other hand, in the case of automatically reversing, it is known that the reversing device is provided with a driving unit such as a cylinder or a motor.

[0004]

In the prior art, since the surplus material is treated as a waste material, there is a problem that it is against the improvement of the yield of the steel sheet. Even if the surplus material is used as a material for a small press part, the surplus material must be inverted. If the reversing operation is performed manually, it takes a lot of man-hours. It has a problem that it requires an installation space.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to reverse the surplus material cut from the steel sheet with a simple structure. It is intended to provide a device for reversing the press surplus material.

[0006]

SUMMARY OF THE INVENTION To solve the above problems, the present invention provides a press surplus material reversing device for reversing a surplus material produced after cutting a necessary portion from a steel plate, and a receiving portion for receiving the surplus material. It is arranged so as to be rotatable around a support shaft, and a locking portion for receiving the extra material is provided at one end of the receiving portion, and a line connecting the locking portion and the axis of the support shaft at the other end. When a weight is disposed below the support member and the extra material is placed on the receiving portion, the receiving portion is rotated about the support shaft in a direction of lowering the extra material.

[0007]

[Operation] When the surplus material produced by cutting the steel plate falls into the receiving portion, the moment of the surplus material with respect to the spindle exceeds the moment of the weight and the receiving portion rotates in the direction of lowering the surplus material around the spindle. Then, after the surplus material contacts the locking portion, it is further rotated to reverse the surplus material. After the surplus material is separated from the receiving portion, the receiving portion returns to its original position by the moment of the weight.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a side view showing an original position state of a press surplus material inverting device according to the present invention, FIG. 2 is a side view showing a state during a reversing operation, and FIG. 3 is a side view showing a reversing operation completed state. 4 is a plan view of a surplus material cut from a steel plate.

As shown in FIG. 1, the press surplus material reversing device 1 has columns 4 standing on one side of a base 3 to which wheels 2 are attached.
The support shaft 7 is fixed to the tip end of the support column 4 via the mounting members 5 and 6, and the receiving part 9 is rotatably mounted via the bearing part 8 fitted to the supporting shaft 7. There is.

The receiving part 9 has an extra material 10 at one end 9a thereof.
A locking portion 11 for receiving the weight is provided, and a weight 14 is disposed on the other end portion 9b via a mounting member 13 so as to be located below a line 12 connecting the locking portion 11 and the shaft center 7a of the support shaft 7. is doing. Here, the weight of the weight 14 and the length of the mounting member 13 (distance between the end 9b and the center of gravity of the weight 14) are determined by the length of the receiving portion 9 (distance between the end 9a and the end 9b) and the spindle 7. Position, extra material 1
It is dynamically determined in consideration of the shape, weight, and the like of 0.

The locking portion 11 has a bent portion 11a formed at the end thereof on the side with which the surplus material 10 abuts. This bent part 11
a is the side 10a of the surplus material 10 that is not in contact with the locking portion 11 and is first separated from the receiving portion 9 while the surplus material 10 is being inverted, and the side 10b that is in contact with the locking portion 11 is This is for rotating the extra material 10 around the center and for preventing the extra material 10 from dropping.

Reference numeral 15 is a stopper for keeping the receiving portion 9 substantially horizontal when the surplus material 10 is not placed on the receiving portion 9, and 16 is for preventing the receiving portion 9 from rotating more than necessary. In addition, the receiving portion 9
A stopper for restricting the rotation range so as to enable the return of the original position, a reference numeral 17 denotes an extra material receiving portion on which the inverted extra material 10 is placed,
Reference numeral 18 is a reinforcing member.

The operation of the press surplus material reversing device 1 configured as described above will be described. When the press surplus material reversing device 1 installed at the drop position of the surplus material 10 in the vicinity of the press machine (cutting process) is in the original position as shown in FIG. 1, by cutting the steel plate 20 as shown in FIG. The resulting surplus material 10 is separated from the steel plate 20 and falls,
It is placed on the receiving portion 9 of the reversing device 1.

Then, in the receiving portion 9, the axis 7 of the support shaft 7
The moment of the extra material 10 with respect to a overcomes the moment of the weight 14, and the receiving portion 9 starts to rotate around the support shaft 7 in the arrow A direction in which the end portion 9a descends. When the receiving portion 9 starts to incline toward the locking portion 11 side due to the rotation of the receiving portion 9, the extra material 10 slides on the receiving portion 9 and as shown in FIG.
Abut.

Further, the receiving portion 9 continues to rotate in the direction of arrow A, and the end portion 9a side of the receiving portion 9 finally comes into contact with the stopper 16. When the end 9a side of the receiving portion 9 contacts the stopper 16 or not, that is, when the receiving portion 9 is in a vertical state (angle C is 90 °) and further rotated, the end 9a side contacts the stopper 16. By the time the angle C reaches 110 °, first the side 10a of the extra material 10 that is not in contact with the locking portion 11 is separated from the receiving portion 9, and the side 10b that is in contact with the locking portion 11 is centered. The surplus material 10 rotates and the surplus material 1
After 0 is reversed, it is placed on a surplus material receiving portion 17 such as a conveyor that conveys the surplus material 10 in the next step (press molding).

After that, as shown in FIG. 3, when the end 9a side of the receiving portion 9 contacts the stopper 16, the extra material 10 is separated from the receiving portion 9, so that the weight 14 of the spindle 14 with respect to the shaft center 7a of the support shaft 7 moves. Due to the moment, the receiving portion 9 has its end 9b.
Rotate in the direction of arrow B until the side contacts the stopper 15,
Again, the press surplus material reversing device 1 is in the original position as shown in FIG.

Since the weight 14 is arranged below the line 12 connecting the engaging portion 11 and the shaft center 7a of the support shaft 7 as shown in FIG. As shown, when the end 9a side of the receiving portion 9 is in contact with the stopper 16, the weight 14 has a line 1 connecting the locking portion 11 and the axis 7a of the support shaft 7.
It comes to exist on the stopper 15 side rather than 2, and the support shaft 7
The reversing device 1 can be returned to the original position by the moment of the weight 14 with respect to the axis 7a of.

[0018]

As described above, according to the present invention, the reversing work required when the surplus material produced by the cutting process of the steel sheet is used as the material of the small press part is performed by the power of electricity or air. It can be done reliably with a simple device that does not require a source.

[Brief description of drawings]

FIG. 1 is a side view showing an in-situ state of a press surplus material inverting device according to the present invention.

FIG. 2 is a side view showing a state during a reversing operation of the press surplus material reversing device according to the present invention.

FIG. 3 is a side view showing a state where the reversing operation of the press surplus material inverting device according to the present invention is completed.

FIG. 4 is a plan view of a surplus material cut from a steel plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Reversing device for press surplus material, 7 ... Spindle, 9 ... Receiving part, 9
a, 9b ... End of receiving part, 10 ... Extra material, 11 ... Locking part,
12 ... A line connecting the locking portion and the shaft center of the support shaft, 14 ... Weight, 15,
16 ... Stopper, 20 ... Steel plate.

Claims (1)

[Claims] 1. A press surplus material reversing device for reversing a surplus material produced after cutting a required portion from a steel plate, wherein a receiving portion for receiving the surplus material is rotatably arranged around a spindle.
An engaging portion for receiving the extra material is provided at one end of the receiving portion, and a weight is provided at the other end below the line connecting the engaging portion and the shaft center of the support shaft. A press surplus material reversing device, wherein when the surplus material is placed on the portion, the receiving portion rotates about the support shaft in a direction to lower the surplus material.