JPS6064742A - Work take-out device for forging and trimming press - Google Patents

Abstract

PURPOSE:To simplify construction and control of a work take-out device which rotates links connected at one end to a press ram in synchronization of the ascendin and descending of the ram and providing chutes which move back and forth into and out of press dies according to said rotation. CONSTITUTION:One end of a link 20 is connected rotatably by means of a pin 30 to a ram 2 and a link 21 is connected at one end similarly to a bolster 22. A chute 11 is fixed to a base 10 and a chute 14 is slided along a long hole 16 formed to the chute 11 by the engagement of the hole 16 and a pin 14 on the chute 14 side. When the ram 2 descends, the links 20, 21 turn to a V shape and the chute 14 is retreated to the chute 11 side by the force of a coil spring 17. A work W is then taken out of a work rest 18. When the ram 2 ascends, a guide groove 24 engages with a pin 15 and the chute 14 is pushed out. The work rest 18 returns to the space between an upper die 3 and a lower die 4 and the cycle is repeated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece take-out device for a trimming press for forging, and more specifically, after the trimming process is completed,
Workpieces or streamers that stick to the upper die and fall at the dead center (
The holder relates to a device for taking out a workpiece and taking it out of the press machine.

Conventionally, as this type of device, for example, one having the structure shown in FIG. 1 has been used. In the figure, 2 is the ram of the trimming press device 1 for forging, 3 is the upper mold, and 4 is the lower mold. By descending, the workpiece W (all inside) is removed. Also, 5 is a manipulator type workpiece take-out device operated by hydraulic or pneumatic pressure, 6 is a conveyor, and the workpiece take-out device 5 moves up and down in the X direction. The arm 7 can be extended and contracted in the Y direction, and can be tilted around the horizontal axis in the care direction.

Although the arm 7 of the workpiece take-out device 5 temporarily retreats outside the press device 1 during the process of the ram 2 descending, the arm 7 of the workpiece take-out device 5 temporarily retreats to the outside of the press device 1 during the process of the ram 2 descending, but as the ram 2 rises again, it moves between the upper and lower dies 3.4 as shown in Figure M1. enter. Here, the upper mold 3 that rises together with the ram 2 has a workpiece W for pressurizing force during trimming.
Alternatively, the above-mentioned streamer may adhere, and for this reason, the press equipment @IK is equipped with a knockout 1a for forcibly dropping the workpiece W or streamer 7 attached to the upper mold 3 when the top dead center is reached. There are n. The workpiece W or 9 dropped by knockout falls onto the arm 7 of the workpiece take-out device 5 under its own weight, and the arm 7
is transferred to the conveyor 6 by retreating to the outside of the press equipment wLl and tilting in seven directions. In other words, the workpieces W or f) attached to the upper die 3 are conveyed to the next process by the workpiece take-out device 5 and conveyor 6Y.

However, the above-mentioned workpiece retrieval device IILIC machine must operate reliably in accordance with the rapid movement of the breath ram, and must also have the function of feeding the workpieces or burrs to the conveyor. In addition to being 11 Ihf high, the control is M'S, and maintenance is likely to be complicated. In addition, when setting the takt time, it is necessary to consider the operating time of the workpiece retrieval device, and there is also the problem that it takes time to change setups.

In view of the above points, the present invention provides a workpiece retrieving device that is particularly simple in structure and operation control. The purpose is to provide.

For this purpose, the present invention includes a link whose one end is connected to the press ram and rotates in synchronization with the outer movement of the press ram, and a link which reciprocates in and out of the press mold by the rotation of this link. A chute with a predetermined inclination angle is used to catch the work pieces or objects falling from the upper die and slide them out of the press die.

Embodiment 7 of the present invention will be described below based on the drawings. However, the same parts as those of the conventional example described above are given the same reference numerals.

FIG. 2 is a diagram showing one embodiment of the present invention.

In the figure, 10 is a chute base installed adjacent to the trimming press device 1, an IIU chute base lO
It is a fixed chute which is fixed at a predetermined inclination at the top, and is installed on the L refloor F by a set bolt 12 on a chute base 10 and is fixed at @13. Reference numeral 14 denotes an OT movable chute that is slidably provided with respect to the fixed chute 11.
The pin 15 (FIG. 3) provided on the side is engaged with the elongated hole 16 formed on the fixed chute 11 side, and the chute 11 slides along the elongated hole 16. The movable chute 14 is always fixed to the coil spring 17 by the chute 11g.
AVc is energized.

Also, is there a hole at the tip of movable shoe 14? The workpiece receiver 18 is removably connected in such a way that it is further extended.
A repulsion spring 19 is provided between the movable chute 14 and the workpiece receiver 18 to prevent the workpiece W or V from flying out when it falls.

20 is a first link whose one end is rotatably connected to the ram 2; 21 is a second link whose one end is also rotatably connected to the bolster 22; +1 link 20.21 other women are interconnected by bottle 23 n
Furthermore, a key-shaped guide groove 24 is formed in the vicinity of the pin 23 of the second link 21.

In addition, it is composed of knockout 1aU strike + 7 Zuberholt 25, S) IJ collar 26.

Here, the operation of the device according to the above configuration will be explained.

First, as shown in Fig. 2, when the sea urchin ram 2 is at the top dead center, the first. Since the second II inks 20 and 21 are almost in a straight line and the guide groove 24 is engaged with the pin 5, the movable chute 14 can be pushed out against the coil spring 17 and movable. Work receiver 1 at the tip of chute 14
8 has entered between the upper mold 3 and the lower mold 4.

Then, the workpiece W or burr movable chute 14 is separated from the upper die 3 using the above-mentioned workpiece Knockout 1aKj.
The upper part of the shoe 11 slips under its own weight and falls onto the conveyor 6, where it is transported to the next process. Incidentally, while the ram 2 is waiting at the top dead center as described above, the next workpiece W with a ridge is set on the lower mold 4.

On the other hand, as the ram 2 descends again from the state shown in FIG. The second link 20.21 becomes an abbreviation (↓
The movable chute 14 is moved by the coil spring 17.
Due to the force of the edge fixing shoe) move back to the 11 side
8 is retracted until it does not interfere with the upper mold 3. In this way, when the movable chute 14 retreats to the retracting limit position, the guide rN24 moves from the pin 15 to the outer ring, so that the movable chute 14 waits at that position. The connection between the second link 20.21 and the movable chute 14 is released. When the ram 2 reaches the bottom dead center, it is in the state shown in FIG. 3, and trimming is performed in this state.

On the other hand, is Ram 2 on the rise again? When the process starts, the movable chute 14 is pushed out due to the engagement between the guide groove 24 and the bin 15, so that the workpiece receiver 18 enters between the upper M3 and the lower die 4, returning to the state shown in FIG. Repeat the above cycle.

In addition, if the above-mentioned workpiece take-out device is not used, remove the 30 hinge pins with the ram 2 at the bottom dead center, take out the links 20 and 21Y, and then remove the set bolt 12.
4 outside 1. Shoot it. 210 pieces are rotated around axis 13 and retracted.

FIG. 4 shows another embodiment of the present invention. In this embodiment, one IJ rank with an abbreviated dogleg shape is used for the previous link 20 and 21, and one IJ rank is installed at one end of this link 31. The grooved cam 341C of the cam plate 33 attached to the cam follower 32 is engaged with the cam follower 32, while the elongated hole 35 formed at the other end of the link 31 is engaged. It is engaged with the pin 15. In the case of this embodiment, the movable chute 14 moves forward and backward as the +7 link 31 swings around the pin 36, and the same effect as in the first embodiment can be obtained. .

It is clear from the above explanation that this invention utilizes the movement of the press ram to reciprocate the chute, so it has a better structure and control compared to the conventional manipulator type workpiece retrieval device. It is extremely simple and inexpensive, and maintenance management is also extremely easy.

Plus, it’s made by Shade! III] All of these are related to the ram's movement and detection, so there is no loss time as in the past, and takt time is shortened.
It has the advantage of being extremely easy to change setups when not in use.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the configuration of a conventional workpiece retrieving device, Fig. 2 is an explanatory diagram showing an embodiment of the present invention, and is an explanatory diagram in the ram top dead center state, and Fig. 3 is an explanatory diagram showing the ram bottom dead center state. FIG. 4 is an explanatory diagram showing another embodiment of the present invention. l... Forging trimming press device, 2... Ram, 3
... Upper die, 4... Lower die, 11... Fixed chute,
14...Movable chute, 15...Pin, 16...
& hole, 17... coil spring, 20.21-... link, 31... II link, W... work.

Claims (1)

[Claims] (1) In a workpiece take-out device for taking out of the press die workpieces or burrs that adhere to the upper die during the trimming process of a prescribed forged product and fall from the upper die near the top dead center of the press ram, one end is attached to the press ram. A link is connected and rotates in synchronization with the lifting and lowering movement of the press ram, and the rotating movement of this link reciprocates inside and outside the press mold to remove workpieces or burrs that fall from the upper mold. A workpiece ejecting device for a forging tomink press is characterized by consisting of a chute with a predetermined inclination that allows the workpiece to slide out of the press mold.