JPS6213716Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a press molded product stripping device, more specifically, a molded product stripping device in a forging press.
This invention relates to a stripping device for stripping and removing strips.

Conventionally, a stripping device has been attached to a press, but a part of the stripping device must be removed when replacing the mold, making the mold replacement work cumbersome.

The present invention was devised in view of the above-mentioned circumstances, and its purpose is to provide a molded product stripping device for a press that does not need to be removed when changing molds.

Embodiments of the present invention will be described below with reference to the drawings.

A die 3 is provided in the lower die set 2 of the bed 1, and a punch 6 is provided in the slide 4 via the upper die set 5.
The die 3 is inserted through the hole 8 of the stripper plate 7 provided in the
Molded product A is formed by protruding to the side.

The molded product A stuck to the punch 6 comes into contact with the stripper plate 7 and is removed from the punch 6.

For this reason, the stripper plate 7 becomes a hindrance when replacing the die 3, and the stripper plate 7 must be removed when replacing the die (mold replacement), making the mold replacement work troublesome. .

Therefore, in the present invention, the stripper plate 7 is attached to the lower die set 2 in the following manner.

In other words, there is a cylinder 9 on one end side of the lower die set 2.
The piston rod 10 is inserted through the leg 11 of the stripper plate 7 and fixed with a bolt 12 and a stopper 13.

An annular upward stepped portion 14 is formed at the lower end of the leg 11, and a pair of guides 15, 15 are fixed to the upper surface of the lower die set 2 so as to be located on both sides of the upward stepped portion 14 in the radial direction. A wedge 16 is provided along the pair of guides 15, 15 so as to be movable laterally in a cylinder 17. A portion 18 is formed.

The piston rod 10 of the cylinder 9 is urged upward by a spring 19, and is configured to descend when fluid pressure is supplied to the pressure receiving chamber 9a from the port 20.

A U-shaped notch 21 formed at the other end of the stripper plate 7 has a pin 2 attached to the lower die set 2.
2, the small diameter portion 23a of the leg 23 is fitted in the leg 23, which is pivotably connected in the left and right direction, and the downward stepped portion 23b of the leg 23 comes into contact with the upper end surface of the stripper plate 7 to apply a stripping force. I support it.

That is, the lower die set 2 is formed with a cutout recess 24, and the pair of brackets 2 are inserted into the cutout recess 24.
5 and 25 are tightened and fixed with bolts 26 and 26, and the boss portion 23c of the leg 23 is inserted between the pair of brackets 25 and 25 and connected with the pin 22.
One end of the lock plate 27 is provided on the upper part of the lock plate 27 so as to be able to swing vertically, and the other end of the lock plate 27 is formed with a downward concave groove 29 that fits into the locking rod 28. This prevents you from falling over.

Therefore, in order to replace the die 3 from the illustrated state, air is supplied from the port 20 to the pressure receiving chamber 9a,
Further, the lock plate 27 is disengaged from the locking rod 28 and rotated upward, causing the legs 23 to fall outward and the stripper plate 7 to be separated. Air is supplied to the cylinder 17 to move the wedge 16 to the left in the figure to separate the downward stepped portion 18 and the upward stepped portion 14.

As a result, the leg 11 is not restricted by the wedge 16 and can freely move upward by the piston rod 10, so when the air in the pressure receiving chamber 9a is exhausted, the piston rod 10 is pushed upward by the spring 19. Therefore, the stripper plate 7 is also moved upward and does not get in the way when the die 3 is replaced.

Note that the stripper plate 7 is attached to the lower die set 2.
If you want to set (install) it, just operate in the opposite direction to the above.

The present invention is as described above, and the stripper plate 7 can be moved up and down by the cylinder 9, and the molded product can be stopped at the lower position during molding operations, and the mold can be placed at the upper position where it does not get in the way when changing molds. Replacement work can be facilitated.

Furthermore, since the wedge 16 can prevent the piston rod 9 from rising, the stripping force can be increased.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is an overall cross-sectional view, the second figure is a - line cross-sectional view, and the third figure is a cross-sectional view taken along the - line.
The figure is a side view, and FIG. 4 is a plan view. 2 is the lower die set, 3 is the die, 7 is the stripper plate, 9 is the cylinder, 10 is the piston rod, 1
6 is the wedge, 17 is the cylinder, and 23 is the leg.

Claims (1)

[Scope of utility model registration request] Die 3 in lower die set 2 with die 3
A cylinder 9 with a piston rod 10 that moves up and down and a leg 23 are provided on both sides of the cylinder 9, and the piston rod 10 of the cylinder 9 is connected to one end side of the stripper plate 7. The leg 23 is removably connected to the end side, and the lower die set 2 is provided with a wedge 16 for preventing the piston rod 10 from rising, which is movable between a blocking position and a permitting position by means of a cylinder 17. Characteristic press molded product stripping device.