JPS5811289B2 - Material supply method for forging press - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement in a material supply method for a forging press.

The general method of supplying materials to a conventional forging press is shown in Figures 1 to 4 for each process. 1 is a forging press; 2 is a forging press;
1 is a raw material, 3 is a mold, 4 is a handling device, 5 is a gripper, 6 is an arm, and 7 is a material feeding device. In FIG. The material 2 is gripped by the gripper 5, and then the arm 6 is moved as shown in FIG. 2 to convey the material 2 into the forging press 1.

Next, as shown in FIG. 3, the gripper 5 is opened and the material 2 is set in the mold 3.

Next, the arm 6 is moved back as shown in FIG. 4, and the forging operation is started from this point.

However, this method has the following drawbacks.

(1) Since it is necessary to operate the handling device and the forging press while ensuring mutual safety, waiting time is required for the mutual operation of the machines, which impedes productivity.

(2) Depending on the forging type, it is necessary to control the supply position (the state shown in Fig. 2) with considerably high precision, which requires large-scale equipment to ensure the rigidity and operational accuracy of the handling device.

The purpose of the present invention is to solve the problem that the most troublesome work in the forging automation process is the supply work of the material (removal work after the forging is completed is relatively easy, as there is a method of blowing it away by construction, etc.).

) and provide a rational method for it.
The goal is to improve productivity and operational stability.

The present invention eliminates the conventional drawbacks, and among the forged types,
The present invention provides a reasonable method for feeding raw materials into the mold of a forging press when performing closed forging (applicable to some backward extrusion, forward extrusion, etc.).

A method for automatically supplying materials when forging a union collar as an embodiment of the present invention will be explained with reference to FIGS. 5 to 3. 11 is an upper mold, 12 is a lower mold, 13 is a die set, 14 is a punch, 15 is a passage, 16 is a material, 17 is a lower bolster, 18 is a lateral material supply hole, 19 is a button,
20 is a vertical material supply hole, 21 is a product, an upper mold 11 is attached to an upper bolster of a forging press (not shown) together with an upper die set (not shown), and a lower mold 12
has a feed mechanism for the material 16 and a passage 15, and is disposed coaxially with the upper die 11 on the lower bolster 17 via the die set 13.

The upper mold 11 is movable by a predetermined amount in the directions A and B, and has a structure that presses the lower mold 12 and provides the necessary closing force during forging.

The punch 14 is movable by a predetermined amount in the C and D directions, and can press the material 16 with a predetermined force in the D direction.

Further, the bushing 19 is structured to be movable in directions E and F along a horizontal material supply hole 17 provided in the die set 13.

The material 16 in the vertical material supply hole 20 is transferred to the horizontal material supply hole 1 when the product 21 is carried out and the pusher 19 returns to the E direction.
It is set to drop to 7.

FIG. 5 shows the state immediately before the material 16 is fed into the upper mold 11 and the lower mold 12.

From this state, as shown in FIG.
descends in direction A and clamps the mold.

Next, as shown in FIG. 7, the punch 14 is further pushed up in the D direction to forge the material 16, and the material 16 becomes a product 21.

Next, as shown in FIG. 8, the upper mold 11 is moved in the direction B, and the product 21 is removed from the upper mold 11 and the lower mold 12 by an appropriate method.

At the same time as being carried out, the punch 14 descends to the position shown in FIG. 5 and stops.

At this time, the button 19 moves within the horizontal material supply hole 18 by a predetermined amount in the F direction in order to position the next material 16 at the tip of the punch 14.

On the other hand, the bushing 19 is moved to the position shown in FIGS. 5 to 7.
By moving in the direction, the new material 16 falls from the vertical material supply hole 20, resulting in the state shown in FIG.

Thereafter, the operations shown in FIGS. 5 to 8 are repeated.

As described above, the present invention provides a closed forging press equipped with a movable punch for pressing a material in a closed forging die formed between an upper die and a lower die facing each other. A material supply hole is provided that communicates with the passage for the punch to move, and the material supplied from the J material supply hole is fed into the forging die by a punch that presses and moves. (1) Unlike the conventional feeding method, the material is Since it is supplied from inside the mold, there is no need to take special consideration to ensure the accuracy of the supply position.

(2) By supplying the material with a punch, the supply operation and forging operation are performed successively, so there is no waiting time and productivity is improved.

It has excellent effects such as

The present invention can be widely implemented in automation devices for closed-type forging presses.

Brief Explanation of the Drawings Figures 1 to 4 show the conventional material feeding method, in which Figure 1 grips the material with a gripper, Figure 2 moves the material into the forging press, and Figure 3 transfers the material to the metal. Set it in the mold and perform the forging work as shown in Figure 4.

Figures 5 and 6 show an embodiment of the present invention. Figure 5 shows the state before the material is fed into the mold, Figure 6 shows the state where the material is set in the mold, and Figure 7 shows the forging operation. Figure 8 shows the product taken out and the punch lowered.

11: Upper mold, 12: Lower mold, 13: Die set, 14: Punch, 15 gear passage, 16: Voice material, 17: Lower bolster,
18: Horizontal material supply hole, 19: Butsha, 20: Vertical material supply hole.

Claims (1)

[Claims] 1. In a closed forging press equipped with a movable punch for pressing a material in a closed forging die formed between an upper die and a lower die that face each other, a passage for the punch to move. A method for supplying material to a forging press, characterized in that a material supply hole is provided in communication with the material supply hole, and the material supplied from the material supply hole is supplied into the forging die by the punch that presses and moves the material.