JPS597445A - Press working device - Google Patents

Abstract

PURPOSE:To display sufficiently the performance of a machine, and also to prevent occurring of a fault, by providing a machine which is capable of press working by making a press machine always execute an up-and-down reciprocating motion without stopping it once in the top dead center. CONSTITUTION:A work 4 is inserted between punch and die parts 2a, 3a by a horizontal operation of a feed bar 5, the upper die part 2a is lowered, a supporting member 8 is depressed by a depressing body 11, the feed bar 5 and the work 4 are lowered, and the work 4 is supplied to the lower die part 3a. When the upper die part 2a is further lowered, a projecting part of the feed bar 5 is detached from the work 4, the feed bar 5 can be pulled back, is pulled back in the direction C, and also the work 4 is subjected to press working by the upper die and lower die parts 2a, 3a. Subsequently, when the upper die part 2a is lifted, the feed bar 5 is lifted by an elastic member 7, the following work 4 is raised, and the same operation is repeated continuously. By using such a mechanism, a press machine can be made to execute an up-and-down reciprocating motion at all times without stopping it once in the top dead center.

Description

[Detailed description of the invention] The present invention relates to a press processing device.

Conventional apparatuses of this type have used a system in which the apparatus is stopped at the top dead center for each cycle, the workpiece is discharged and supplied, and the apparatus is restarted to perform press working. However, with this conventional method, there was a problem in that the capabilities of the press machine were not fully utilized and the clutches and brakes were prone to failure. Moreover, the power consumption is large, and there are also problems in terms of safety.The present invention aims to solve these conventional problems, and the feature of the present invention is that the press machine The structure is such that pressing is performed while constantly reciprocating up and down without stopping once at the top dead center.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

FIGS. 1 to 41 are diagrams in which the operations are sequentially illustrated,
(1) is a press machine for drawing, trimming, cutting, forming, piercing, separating, bending, and other various pressing processes, (2) is an upper mold, (3)
) is the lower mold. The upper mold (2) has a mold part (2a) and a plate part (2b), and the lower mold (3) also has a mold part (8a).
) and a plate portion (8b). (4) indicates the workpiece,
Any of the above-mentioned press workings is performed directly in the mold part (2a) (8a).

Therefore, in (5), the workpiece (4) is cut into multiple pieces at a predetermined pitch, and the mold part (8a) of the lower mold (3) is cut into pieces.
This is a feed bar that draws a rectangular movement trajectory when viewed from the side. For example, the feed bar (5) has a cross-shaped (lattice-like) shape when viewed from above, and workpiece receiving pieces (6) are protruded from the longitudinal girders. Further, the feed bar (5) is attached to a supporting member (8) which is attached to the lower mold (3) so as to be able to move up and down via a weak elastic member (7).
Horizontal operation (A) (Can be moved - C1 supported.

In other words, although detailed illustrations are omitted, the pole type receiver has a mechanism, etc., in which a groove (9) is provided in the support member (8), and this receiver is provided with a groove (91) that allows horizontal operation (A) (0) from above. The feeder (5) is supported in a mounted manner.The support member (8) itself is attached via the elastic member (7), so that the lowering operation (B) and the raising operation (D) can be performed. Therefore, as shown in Figures 1 to 5,
The feed bar (5) sequentially moves from horizontal operation (A) to descending operation (
B) -> horizontal operation (0) - ascending operation (D) is repeated.

By the way, the upper mold (2) has a sufficiently strong elastic member 0.
The push-down body (11) is attached via the spring member αO, and the spring force of this spring member αO is always set to be larger than the spring force of the other spring member (7) in any state. , when the support member (8) is pressed down with the pressing body fill, first,
Only the lower weak elastic member (7) is compressed, and the supporting member (
8) comes into contact with the upper end of the fixed cylindrical body 0, and the upper, powerful elastic member αO begins to be compressed.

Special opening 859-7445 (2) To explain this in more detail, if the workpiece (4) is fed horizontally (with Al) between the mold parts (2a) and (8a) as shown in Figure 1, The upper mold part (2a) descends as shown by the arrow (H), and as shown in FIG. ) is lowered and the workpiece (4) is placed in the lower mold part (8a).
supply.

Before and after the state shown in FIG. 8, the transmitter (5) can be pulled back in the direction of arrow (0). So the 8th
As shown in Fig. 4, the feed lever (5) is pulled back (0), and the workpiece (4) is moved to the upper and lower mold parts (2a) (
In step 8a), various types of press working are performed. After that, when the upper mold part (2) rises (K), the feed bar (5) moves upward (D) by the elastic urging force of the elastic member (7), and the next workpiece (4) is moved. be lifted up. Next, from Figure 5 to 1
Move the feed bar (5) horizontally in the feed direction (A) as shown in the figure.
Then, the workpiece (4) that is fed between the mold parts (2aX8a) and processed is discharged to the left in the figure.

Conventionally, elastic members with different strengths (71Q□ and pusher 11)
Since the first grade was not used, the press machine (1) was able to quickly pull the button while the press machine (1) was performing the press process.
b It was considered impossible to operate horizontally (0). However, in the present invention, while the press machine (1) is performing press work, the time during which the feeder (5) can be pulled back and operated horizontally (C) can be extended.
The feed bar (5) can be smoothly returned to its original state, allowing the feed bar (5) to move in a rectangular trajectory (as viewed from the side) while ejecting and feeding the workpiece (4). This is carried out continuously, and the press machine (1) is capable of press working while constantly reciprocating vertically without stopping once at the top dead center.

Next, in another specific example shown in FIG.
are sequentially supplied while being reversed by a reversing type feeding device 03 installed adjacent to the front of the press machine (1).
In 1), the upper mold (not shown) constantly reciprocates up and down and does not stop once every - cycle.

The reversing type feeding device is equipped with a slide ramp that allows the workpiece (4) to slide and descend by hand or by mechanical conveyance means, and further swings around a support shaft. (F) CG) A freely pivoted inversion table α0, a cylinder rotatably pivoted on the inversion table aO at an axis αη, and an arrow (M) connected to the cylinder. (N
), the clamp member swings up and down around the spindle u9 and clamps the workpiece (4) together with the reversing table 01S, and the reversing table α0 when the workpiece (4) descends (E). A stopper (211, etc.) is provided for upper positioning.

Then, hold the workpiece (4) in the state shown by the solid line and hold it as shown by the arrow (
In the direction of the force, a drive device (not shown) moves the reversing table (as shown by the imaginary line).
161 is inverted. Then, the cylinder is contracted, the clamp member is swung (N), and the workpiece (4) is fed into the lower mold part (8a). After that, it immediately swings (G) to the solid line position and receives the next workpiece (4).

At the front of the press machine (1), if the workpiece (4) is clamped in advance by hand or machine to the reversible feeding device a3, the workpiece (4) will be sequentially clamped in conjunction with the vertical movement of the upper die of the press machine (1). Since the workpiece (4) is supplied, there is no need for the press machine (1) to temporarily stop at the top dead center in this case as well.

Further, in FIG. 7, another work supply device is attached to the front of the press machine (1). 1 is a sliding ramp, which can swing up and down as shown by arrows (P) and (Q), and its rear edge is pivoted at 241. It is a cylinder for moving (P) (Q)ζ. Then, since the upper mold (2) descends to the position of the imaginary line, the tilting table swings downward (Q) to avoid interference. The operation of both the upper mold (2) and the operation cylinder 4 of this tilt table may be electrically controlled to operate sequentially.

A stopper protrudes from the front end of the tilting table (23), so that when the workpiece is tilted forward and downward (imaginary line), the workpiece (
Even if you put 4) on it, it will not fall to the front (to the right). Furthermore, if the front edge of the slope (2) is close to the floor surface, there is an advantage that it becomes extremely easy to hold and place the workpiece (4) by hand. When the upper mold (2) rises, cylinder 4 extends, and the workpiece (4) slides on the inclined table tilted backwards and downwards as shown by the arrow (PQ) to reach the lower mold part (8).
a) is supplied dropwise. In addition, after pressing, the workpiece (
A discharge cylinder a) for discharging 4) is attached as shown in the figure. In the case of this figure as well, if the workpiece (4) is placed on the inclined table in advance at the front of the press machine (1), the workpiece supply is automatically coupled with the upper mold (2) and the workpiece is fed. There is no need to temporarily stop the press machine (1) at the top dead center.

As described in detail above, the present invention performs pressing while constantly reciprocating up and down without stopping the press machine (1) at the top dead center, so even existing press machines can improve their performance. It has now become possible to fully demonstrate. In particular, it is no longer necessary to operate the clutch and brake every cycle, which significantly reduces the occurrence of clutch and brake failures, reduces power consumption, and reduces the horsepower of the drive motor. Even small objects are sufficient, and when feeding workpieces by hand, there is a significant reduction in the risk of injury from being caught in a push mold, etc., and safety is improved. have an effect.

[Brief explanation of the drawing]

FIGS. 1 to 5 are simplified side views showing an embodiment of the present invention for explaining the operating sequence, and FIGS. 6 and 7 are side views showing each side of the embodiment. (1)...Press machine, (5)...Feed par, 03
(221... Supply device. Patent applicant: Takao Metal Industry Co., Ltd. Figure 2 Figure 3 Figure 4 Figure 5 J 3b

Claims (1)

[Claims] 1. A press working device characterized in that the press machine (1) is configured to perform press working while constantly reciprocating up and down without once stopping at the top dead center.