JP2901220B2 - Reversing device for surplus press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for reversing a surplus press which is produced by cutting a desired shape panel from a thin steel sheet in a press line cutting process.

[0002]

2. Description of the Related Art Generally, when a panel having a desired shape is cut from a roll-shaped steel sheet in a cutting process of a press line in an automobile factory, a surplus material is generated around the shape, and this surplus material is usually discarded as waste material. Is being processed.

[0003] Further, when this surplus material is used as a material for small pressed parts, it is necessary to invert the steel plate because the steel plate has front and back surfaces, and the inversion is often performed manually. On the other hand, when automatically reversing, it is known that the reversing device includes a driving unit such as a cylinder or a motor.

[0004]

In the prior art, since the surplus material is treated as waste material, there is a problem that it is against the improvement of the yield of the steel sheet. In addition, even if the surplus material is used as a material for small pressed parts, the surplus material must be reversed, and if the reversing operation is performed manually, it takes a lot of man-hours. There was a problem that an installation space was required.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to enable a simple structure to invert a surplus material cut from a steel plate. It is an object of the present invention to provide a device for reversing a press surplus material.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a press surplus reversing device for reversing surplus material generated after cutting a necessary portion from a steel plate, wherein a receiving portion for receiving the surplus material is provided. A line that is rotatably disposed about a support shaft, and that has a locking portion for receiving the surplus material 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 the weight is disposed below and the surplus material is placed on the receiving portion, the receiving portion rotates about the support shaft in a direction for lowering the surplus material.

[0007]

When the surplus material generated by the cutting of the steel plate falls to the receiving portion, the moment of the surplus material with respect to the support shaft overcomes the moment of the weight, and the receiving portion rotates around the support shaft in a direction for lowering the surplus material. Then, after the surplus material comes into contact with the locking portion, the surplus material is further rotated to reverse the surplus material. After the surplus material leaves the receiving portion, the receiving portion returns to the original position by the moment of the weight.

[0008]

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

The reversing device 1 for a press surplus material has a column 4 standing on one side of a base 3 on which wheels 2 are mounted as shown in FIG.
A support shaft 7 is fixed to the tip of the support column 4 via mounting members 5 and 6, and a receiving portion 9 rotatably mounted via a bearing portion 8 fitted to the support shaft 7 is provided. I have.

The receiving portion 9 has an extra material 10 at one end 9a.
And a weight 14 via an attachment member 13 at the other end 9b so as to be positioned below a line 12 connecting the locking portion 11 and the axis 7a of the support shaft 7. doing. Here, the weight of the weight 14 and the length of the attachment member 13 (the distance between the end 9b and the center of gravity of the weight 14) are determined by the length of the receiving portion 9 (the distance between the end 9a and the end 9b) and the length of the support shaft 7. Position, surplus 1
It is dynamically determined in consideration of the shape, weight, etc. of zero.

The locking portion 11 has a bent portion 11a at the end on the side where the surplus material 10 contacts. This bending part 11
a, the side 10a of the surplus material 10 that is not in contact with the locking portion 11 is first separated from the receiving portion 9 and the side 10b of the surplus material 10 that is in contact with the locking portion 11 during the inversion of the surplus material 10. This is for rotating the surplus material 10 around the center and preventing the surplus material 10 from falling.

Reference numeral 15 denotes 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 denotes a stopper for preventing the receiving portion 9 from rotating more than necessary. The receiving portion 9 from the relationship with the mounting position of the weight 14
A stopper for restricting the rotation range so as to enable the return of the original position, an extra material receiving portion 17 for placing the inverted extra material 10,
18 is a reinforcing member.

The operation of the reversing device 1 for a surplus press having the above structure will be described. In the original position as shown in FIG. 1, the reversing device 1 for the surplus press material installed in the vicinity of the press machine (cutting work) at the drop position of the surplus material 10 performs cutting work on the steel plate 20 as shown in FIG. 4. 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, the shaft center 7 of the support shaft 7 is
The moment of the surplus member 10 with respect to a overcomes the moment of the weight 14, and the receiving portion 9 starts rotating around the support shaft 7 in the direction of arrow A where the end portion 9a descends. When the receiving portion 9 starts to incline toward the locking portion 11 due to the rotation of the receiving portion 9, the surplus material 10 slides on the receiving portion 9 as shown in FIG.
Abut.

Further, the receiving portion 9 continues to rotate in the direction of arrow A, and the end 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 is in contact with the stopper 16 or not, that is, the receiving portion 9 is further rotated from the vertical state (the angle C is 90 °) and the end 9a side is in contact with the stopper 16 By the time the angle C reaches 110 °, the side 10a of the surplus 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 being turned over, 0 is placed on a surplus material receiving portion 17 such as a conveyor for conveying the surplus material 10 in the next step (press molding).

Thereafter, as shown in FIG. 3, when the end 9a side of the receiving portion 9 comes into contact with the stopper 16, the surplus member 10 is separated from the receiving portion 9, so that the weight 14 with respect to the axis 7a of the support shaft 7 is Due to the moment, the receiving part 9 has its end 9b
Rotate in the direction of arrow B until the side contacts the stopper 15,
Again, the reversing device 1 for the surplus press material returns to the original position as shown in FIG.

Since the weight 14 is disposed below the line 12 connecting the locking portion 11 and the shaft 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 is a line 1 connecting the locking portion 11 and the axis 7a of the support shaft 7.
2 is closer to the stopper 15 than the support shaft 7.
The reversing device 1 can return to the original position by the moment of the weight 14 with respect to the axis 7a.

[0018]

As described above, according to the present invention, the reversing operation required when utilizing the surplus material generated by cutting the steel plate as the material of the small pressed part is performed by power such as electricity or air. It can be performed reliably with a simple device that does not require a source.

[Brief description of the drawings]

FIG. 1 is a side view showing an original position state of a device for reversing a surplus press material according to the present invention.

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

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

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

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Reversing device of surplus press material, 7 ... Support shaft, 9 ... Receiving part, 9
a, 9b: end portion of receiving portion, 10: surplus material, 11: locking portion,
12 ... line connecting the locking portion and the axis of the support shaft, 14 ... weight, 15,
16: stopper, 20: steel plate.

Claims (1)

(57) [Claims] An apparatus for reversing a surplus material generated after cutting a necessary portion from a steel plate, wherein a receiving portion for receiving the surplus material is disposed rotatably about a support shaft,
At one end of the receiving portion, a locking portion for receiving the surplus material is provided, and at the other end, a weight is disposed below a line connecting the locking portion and the axis of the support shaft. A reversing device for a press surplus material, wherein when the surplus material is placed on the portion, the receiving portion rotates around the support shaft in a direction for lowering the surplus material.