JPS643558Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a material supply device in a forging press or the like.

(Prior art) In order to supply materials to a forging press, etc., conventionally, 1
One material supply device was dedicated and used for each type or the same type of material. Therefore, when two types of materials having different shapes are to be supplied to a forging press or the like, a material supply device corresponding to each material is provided.

(Problems to be Solved by the Invention) For this reason, when supplying different types of materials to a forging press or the like, it was necessary to replace the material supply device each time. That is, in the past, there were as many material supply devices as there were types of materials to be supplied, which required a large number of man-hours to replace the material supply devices, and the forging press had to be stopped. Ta.

In view of the above, the object of this invention is to provide a material supply device such as a forging press that can supply materials even when the materials to be supplied are of two different shapes.

(Means for Solving the Problems) In order to achieve the above object, the configuration of this invention is as follows. In other words, there is a pair of upper and lower material supply rails arranged in two layers on the upper part of the support base, a slider arranged at the bottom of these rails and movable in the longitudinal direction of the rails, and a slider that moves in a predetermined stroke. A slider moving means for reciprocating, and a first material disposed at a predetermined pitch in the direction of movement of the slider to sequentially move the first material supplied onto the lower rail to the material supply end of the rail when the slider moves forward. multiple push claws,
a guide for moving a second material fixed to the slider and supplied onto the upper rail to a material supply end of the rail when the slider moves forward; and a guide provided at the front end of the slider when the slider reaches the forward movement end. The material supply device is constituted by a stopper whose upper part is rotated by a pusher and projects above the material supply end, and stops the material at a fixed position when it reaches this end.

(Function) When the first material is supplied onto the lower rail of the material supply device, the slider is caused to reciprocate by a predetermined stroke in synchronization with the operation of the press by the slider moving means, and the plurality of push pawls provided on the slider cooperate to move the first material to the material supply end of the rail. When the first material reaches the material supply end, the upper part of the stopper rotated by the pusher of the slider projects above the rail to stop the first material at a fixed position at the material supply end. Further, when the second material is supplied onto the upper rail, a guide fixed to the slider moves the second material to the material supply end of the rail when the slider moves forward. At this time, the stopper operated by the slider stops the second material at a fixed position at the material supply end.

(Example) Next, this invention will be explained based on an example shown in the drawings.

In FIGS. 1 and 2, a material supply device 2 for supplying material to a forging press (not shown) is attached to a frame 1 of the press. The material supply device 2 is attached to the upper surface of the frame 1,
There is a support stand 3 having a length that projects rearward of the frame 1, and the front surface of the material supply side end (hereinafter referred to as the front part) 3a of this support stand 3 is the front end 1a of the frame 1.
It's almost on the same plane. The support base 3 has a predetermined width, and a groove 4 is cut in the center of the upper part thereof from the rear to the front. This groove 4 is open at the rear and closed at the front to form a front section 3a having a predetermined thickness. A pair of lower rails 5, 5 are fixed to the upper surface of the support base 3 over its entire length, and between the lower rails 5, 5, a first,
A gap b is provided in which the second push claws 16, 16A can move.

A slider 6 is inserted into the groove 4 below the lower rails 5, 5 so as to be slidable in the longitudinal direction thereof, and a bracket 7 is fixed to the lower surface of the rear end of the slider 6.

At the rear and lower part of the support base 3 is a camshaft 8 which is driven and rotated by a press, and a heart-shaped plate cam 9 is attached to this camshaft 8. A roller follower 10 that comes into contact with the plate cam 9 is rotatably attached to one end of a short arm 11a of an L-shaped lever 11 by a shaft 12. The bent portion of the L-shaped lever 11 is swingably supported by a support shaft 13 supported by the frame 1 through a support (not shown). The L-shaped lever 11 has a long arm 11.
The end of b is connected to the bracket 7 via a turnbuckle 14. Further, an air cylinder 15 is attached to the long arm 11b of the L-shaped lever 11 to urge the roller follower 10 in a direction to press the cam surface of the plate cam 9.

As shown in FIG. 1, when the roller follower 10 is in contact with the top of the plate cam 9, the L-shaped lever 11 is rotated counterclockwise about the support shaft 13. At this time, the bracket 7 connected to the L-shaped lever 11 via the turnbuckle 14 is at its rear end position, and the rear end of the slider 6 is aligned with the rear end of the support base 3. When the plate cam 9 rotates counterclockwise from this position, the distance from the center of the support shaft 8 to the roller follower 10 gradually becomes shorter, so the L-shaped lever 11 receives the tensile force of the air cylinder 15 and rotates clockwise. I am made to do so. here,
Since the length of the long arm 11b is longer than the length of the short arm 11a, the movement of the long arm 11b is magnified relative to the movement of the short arm 11a, thereby moving the slider 6 forward. Then, when the plate cam 9 rotates approximately 180 degrees from the position shown in FIG. 1, the slider 6 reaches the front end of the groove 4, and then
Temporarily stopped. When the plate cam 9 further rotates, the plate cam 9 pushes up the roller follower 10 against the biasing force of the tension spring 15, so that the slider 6 is returned to its initial position.

As shown in FIG. 3, the slider 6 has an elongated hole 6a in the longitudinal center of its front end, and a push pawl 16 is pivotally attached to the elongated hole 6a by a pin 17. The pushing pawl 16 is pulled rearward by a tension spring 18 provided at the rear of the elongated hole 6a, and is brought into a substantially vertical state by contacting a stopper 19 provided in the elongated hole 6a. and,
In addition to the push claw 16 at the front end of the slider 6, a second push claw 16A is provided at the rear with a predetermined pitch from the push claw 16. In this way, the first push claw 1 attached to the slider 6
6 and the second pressing claw 16A, as shown in FIG.
It protrudes upward from the gap between the lower rails 5,5.

Above the lower rails 5, 5, this lower rail 5,
An upper rail 20 is provided parallel to 5.

A bending arm 22 is attached to the side of the slider 6 by passing through a horizontal hole 21 formed in the side wall 3b of the support base 3. As shown in FIG. 1, the upper part of the bending arm 22 is located above the upper rail 20 and extends forward, and a cylindrical guide 23 is fixed to the front end of the bending arm 22. The axis C of this guide 23 is the upper rail 20.
A predetermined gap is provided between the upper surface of the upper rail 22 and the lower surface of the guide 23. This guide 23 is positioned above the front end of the upper rail 20, as shown by the two-dot chain line in FIG. 1, when the slider 6 reaches the forward end. Note that a hole 20a is provided at the front end of the upper rail 20 for dropping the round bar-shaped cutting material W1 carried by the guide 23.

As shown in FIG. 4, a stopper pawl 24 is swingably attached to the upper part of the front end of the support base 3 by a shaft 25. As shown in FIG. A roller 26 is attached to the stopper pawl 24 below a shaft 25 by a pin 27. A pusher 28 for actuating the stopper pawl 24 is attached to the lower front end of the slider 6 so as to protrude forward from the slider 6. The pusher 28 has a block 29 fixed to the lower front end of the slider 6, and a hole 29a of the block 29 has a disc-shaped head 3 at the front end.
A rear end portion of the push rod 30 having a diameter 0a is slidably inserted. A nut 31 is screwed into a threaded portion of the push rod 30 that projects rearward from the block 29, and the nut 31 is fixed to the threaded portion by a pin 32. Then, the push rod 30 has its head 3.
A compression spring 32 is fitted between Oa and block 29. Before the slider 6 moves forward and reaches its forward end, the push rod 30 of the pusher 28
When the head 30a enters the horizontal hole 33 made in the front part 3a of the support base 3 and protrudes from the horizontal hole 33, it presses the roller 26 of the stopper pawl 24,
The stopper pawl 24 is rotated counterclockwise about the shaft 25 to make the inner surface 24a of the stopper pawl 24 substantially vertical. At this time, the inner surface 2 of the stopper claw 24
4a is close to the front end surface 5a of the lower rail 5 and is parallel to this front end surface 5a. In this material supply device 2, the cut material W1 of the round steel bar is transferred to the slider 6
A first chute 34 supplies the guide 23 fixedly installed on the upper part of the rail 23, and a disc-shaped upsetting material W2 is supplied onto both lower rails 5, 5 by a second chute 35. .

Note that the function of separating and supplying the cutting material W1 and the upsetting material W2 one by one is performed by the first chute 34 and the second chute 34.
They are provided in the chute 35, respectively.

Next, the operation of this embodiment will be explained.

When the plate cam 9 is in the position shown in Fig. 1, the slider 6
is located at the rear of the support stand 3, the upsetting material W2 is supplied from the second chute 35 onto the lower rails 5, 5 in front of the second push pawl 16A. When the plate cam 9 rotates in the direction of the arrow in this state, the slider 6 moves forward by a certain stroke as described above, so that the upsetting material W2 in front of the second pushing pawl 16A pushes the top of the lower rails 5 for the second time. It is pushed forward by the claw 16A. When the plate cam 9 further rotates and returns to the starting position, the slider 6 retreats.
After the first pushing claw 16 is pushed down by the upsetting material W2 against the biasing force of the tension spring 18, the first pushing claw 16 is pressed down by the upsetting material W2.
2 is triggered by the tension spring 18. Then, when the plate cam 9 further rotates, the slider 6 moves forward, and the upsetting material W2 is pushed out by the first pushing pawl 16. The front end side of the upsetting material W2 pushed out in this manner tends to jump out from the front ends of the lower rails 5, 5.

On the other hand, when the slider 6 reaches the forward end, the push rod 30 of the pusher 28 presses the roller 26 of the stopper pawl 24, so that the stopper pawl 24
is raised to the position indicated by the two-dot chain line in FIG. Therefore, the upsetting material W2 is
4 and stops at its normal position. In this way, the upsetting material W2 sequentially supplied from the second chute 35 is stopped at a fixed position on the rails 5, 5.

Next, when the material supplied to the press is switched to the cut material W1, the cut material W1 is supplied from the first chute 34 to the guide 23 fixed to the slider 6 when the slider 6 is located at the rear end, It is held on top of the upper rail 20 by a guide 23. When the plate cam 9 rotates and the slider 6 moves forward, the cut material W1 is guided by the guide 23 and transferred on the upper rail 20. When the slider 6 reaches the forward end and stops, the cut material W1 in the guide 23 falls from the hole 20a of the upper rail 20 onto the lower rails 5, 5. When the cutting material W1 reaches the forward end, the stopper pawl 24 is in the raised state, so when the cutting material W1 falls onto the lower rails 5, 5, it is stopped at its fixed position by the stopper pawl 24. .

In the above manner, the cutting material W1 is supplied to the material supply device.
Alternatively, when the upsetting material W2 is supplied, the cutting material W1
Alternatively, the swaging material W2 is transferred to a fixed position at the front end of the lower rails 5, 5. Therefore, the cut material W1 or the swaging material W2 is transferred from this position to a press process by a press transfer (not shown), and then processed by the press.

Therefore, according to this material supply device, two types of materials with different shapes can be supplied to the press without replacing parts of the device or changing the setup of the device.

In place of the cam 9 in the above embodiment, an air cylinder (not shown) or the like is attached to the bracket 7, and the operation of the bracket 7 by this air cylinder is performed in the same way as the operation of the bracket 7 by the plate cam 9. It is also possible to Further, a tension spring may be provided in place of the air cylinder 15.

(Effect of the invention) As is clear from the above explanation, according to this invention, two types of materials with different shapes are moved on the upper and lower two layers of rails, and these two types of materials are moved on each rail. Since it stops at the final stop position, when feeding materials to a forging press, etc., it is not necessary to replace the material feeding device or change the setup of the material feeding device, unlike conventional methods, and feed two different types of materials. be able to.

[Brief explanation of the drawing]

The figures show one embodiment of the invention, in which Fig. 1 is a front view showing a cross section of the main part of the material supplying device, Fig. 2 is a cross section taken along line - in Fig. 1, Fig. 3 is an enlarged perspective view of the front end of the slider, and Fig. 4 is an enlarged view of part A in Fig. 1. 1... frame, 2... material supplying device, 3...
Support base, 5... Lower rail, 6... Slider, 8
……Camshaft, 9……Plate cam, 16……Push claw, 1
6A: second pressing claw, 20: upper rail, 24:
...stopper claw, 28...pusher, W1...cutting material (second material), W2...upsetting material (first material).

Claims (1)

[Scope of utility model registration request] A pair of upper and lower material supply rails arranged in two layers at the top of the support base, a slider arranged at the bottom of these rails and movable in the longitudinal direction of the rails, and a slider that moves back and forth with a predetermined stroke. and a plurality of slider moving means disposed at a predetermined pitch in the moving direction of the slider and sequentially moving the first material supplied onto the lower rail when the slider moves forward to the material supply end of the rail. a push pawl, a guide fixed to the slider to move the second material supplied onto the upper rail to the material supply end of the rail when the slider moves forward; A material supply device consisting of a stopper that is rotated by a pusher provided at the front end and protrudes above the material supply end to stop each material in a fixed position.