JPS583769B2 - Press product removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides that when a pressed product is obtained by forming a bent portion having a U-shaped cross section using a mold having a hook-forming portion on one end edge of the workpiece, the pressed product is The present invention relates to a press product removal device for removal from a mold.

When removing a pressed product with a U-shaped bent portion formed on the edge of the workpiece as described above from the mold, move the pressed product laterally toward the outside of the mold, and remove the U-shaped bent portion from the mold. Remove the hook-forming part of the mold, then move the pressed product upward, or move the mold laterally toward the inside of the pressed product, and remove the hook-forming part of the mold from the U-shaped bent part. , after which the pressed product is moved upwards.

Conventionally, the lateral movement of the press product or mold and the subsequent upward movement of the press product are performed by separate drive sources, so it is necessary to time the operation of both drive sources, resulting in equipment The disadvantage is that it is complicated.

The present invention solves the above-mentioned conventional drawbacks, and provides a press product removal device with a simple structure that can move the press product or die in the lateral direction and move the press product upward using a single drive source. The purpose is to provide.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a support supported by a plurality of columns 2, and a fixed mold having a hook-forming part 3 on the upper surface of the support. (hereinafter referred to as a fixed mold) 4, and a mold (hereinafter referred to as a movable mold) 6 that faces the back surface of the hook forming portion of the fixed mold 4 through a slider 5 and is movable relative to the fixed mold 4. .

The heights of both molds 4 and 6 are the same, and above them a pad 7 for pressing and fixing a work onto the upper surface of each is suspended from an upper mold of the press machine (not shown).

A vertical bending punch 8 that vertically bends the workpiece slides on the side of the fixed mold side of the pad 7, and the upper part of the punch 8 is fixed to the upper mold of the press machine, and the pad 7 holds the workpiece in both molds. It is designed to be able to move downward even after being pressed against the top surface.

The bent portion 9 at the lower end of the vertical bending punch 8 is spaced outward from the side surface 10 of the hook forming portion by the thickness of the workpiece.

A horizontal bending punch 12 is provided on the upper surface of the support base so as to be movable forward and backward relative to the hook forming portion 3 of the fixed die 4 via a slider 11, and its tip bending portion 13 is attached to the hook forming portion 3 of the fixed die 4.
4, the thickness of the workpiece is allowed to escape downward.

The horizontal bending punch 12 is connected to a drive source (not shown) or an interlocking mechanism with an upper mold.

A return spring 15 for retracting the horizontal bending punch 12 is installed between the fixed die 4 and the horizontal bending punch 12.

Between both dies 4 and 60, a hydraulic or pneumatic cylinder 16 is installed on the underside of the support stand 1 as a drive source for removing the pressed product.
is attached with the piston rod 17 facing upward, and a push-up table 18 for pushing up the pressed product located between both dies is fixed to the upper end of the piston rod.

As shown in FIG. 2, a set of two cam plates 19 are fixed to both sides of the lower surface of the push-up table 18. Each cam plate 19 has a cam groove 20 of the same shape. has a vertical groove portion 21 formed in the vertical direction and a horizontal groove portion 22 bent toward the movable mold 6 from the upper end of the vertical groove portion.

One pin 2 in each cam groove 20 of one of the two cam plates 19
3 are fitted in a slidable manner, and the other ends of two links 25, one end of which is pivotally connected 24 to the support base 1 near the fixed mold 4, are pivotally connected to both ends of the pin 230. Two links 27, one end of which is pivotally attached 26 to the movable mold 6, are pivotally attached to the other end of the movable die 6.

Similarly, pin 23 and link 2 are attached to the other two cam plates 19.
5. 27 are connected.

One end of one link 25 may be pivotally connected to the fixed mold 4.

Reference numeral 28 indicates a rail for pushing up a press product fixed to the upper surface of the push-up table, and 29 indicates a workpiece attachment pin protruding from the outer base of the movable mold 6.

When bending a workpiece, the cylinder 16 is inactive, the piston rod 17 moves downward, the push-up table 18 similarly moves downward, and the cylinders 25 and 27 become horizontal, and the pin 23 is in the cam groove 20. It is located in the horizontal groove portion 22.

Further, the pad 7 and the vertical bending punch 8 have moved upward and are located above both dies, and the horizontal bending punch 12 has moved back.

The workpiece W has one side bent in advance into a crank shape in cross section, and a through hole W2 made in the lower horizontally bent part W1 is inserted into the movable mold 6.
It is inserted into the workpiece mounting pin 29 of the vertical bending part W8.
is placed along the outer surface of the movable mold, and furthermore, the upper horizontally bent portion W4 is placed on the upper surface of both molds 4 and 6.

One side of the workpiece W is supported by the workpiece mounting pin 29 so that it can move upwardly and immovably laterally relative to the movable mold 6.

The inner corners of the vertical bending part W3 and the upper horizontal bending part W4 are movable molds 6
The other edge of the upper horizontally bent portion W4 is bent from the fixed mold 4 to a predetermined length, that is, the length required to form a U-shaped bent portion by vertical and horizontal bending. It stands out by just a little bit.

First, move the pad 7 downward to remove the upper horizontally bent part W of the workpiece W.
4 is press-fixed to the upper surfaces of both molds, and the vertical bending punch 8 is moved down to bend the protruding portion of the workpiece W in the vertical direction in cooperation with the side surface 10 of the hook forming portion 3.

Next, the lower part of the vertically bent portion W5 is bent in the horizontal direction in cooperation with the lower surface 14 of the hook forming portion 3 to form a U-shaped bent portion W6, thereby obtaining a pressed product P.

After that, the pad 7 and the vertical bending punch 8 are moved upward to separate them from the pressed product P, and the horizontal bending punch 1
2 is moved backward by the elastic force of the return spring 15.

Next, the cylinder 16 is operated and the piston rod 17
When the cam plate 19 moves upward, one link 25 rotates clockwise about the pivot joint 24 via the pin 23, so that the pin 23 engages the horizontal groove 22 of the cam groove 20. slide toward the vertical groove portion 21.

As a result, the movable mold 6 moves forward toward the fixed mold 4 via the other link 27, and the U-shaped bent portion W6 of the pressed product P is moved forward.
starts to move laterally outward from the hook-forming part 3 of the fixed mold 4.

With the subsequent upward movement of the piston rod 17, the pin 23 is positioned at the upper end of the longitudinal groove 21 of the cam groove 20 as shown in FIG. In this way, the press product P is pushed upward by the push-up table 18 and removed from both molds 4 and 6.

At this time, since the pin 23 is located in the vertical groove portion 21 of the cam groove 20, the movable die 6 does not move.

After removing the press product P, the piston rod 17 is moved down and the pin 23 is positioned at the upper end of the vertical and horizontal parts 21 of the cam plate 19. After that, the pin 23 is pushed down by the cam plate 19, and one link 25 is moved counterclockwise. Since it rotates in the direction, pin 2
3 slides into the transverse groove 22 and retreats the movable mold 6 to its original position via the other link 27.

In other words, the cam groove 20 of the cam plate 19 is oriented in the opposite direction to the above embodiment, that is, the lateral groove portion 22 is directed toward the fixed mold 4, and the fixed mold 4 is made into a movable mold, and the movable mold 6 is made into a fixed mold. Movable type 6
Alternatively, the fixed mold 4 may be removed from the U-shaped bent portion W6 by moving the fixed mold 4 forward.

As described above, according to the present invention, a pressed product is supported by one mold so that it can move upwardly and cannot move laterally, and the U-shaped bent part is held by the other mold.
By operating one driving source, one mold or press product is activated through at least one pair of links, a cam plate having a cam groove, and a pivot pin of each link that is slidably fitted into the cam groove. It is possible to remove the U-shaped bent part from the mold by moving it laterally, and then move the pressed product upwards using a push-up table. There is no need to use separate drive sources for removing the press product and moving the press product upwards.
This allows the structure of the device to be simplified.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, and Fig. 2 is a front view of an embodiment of the present invention.
The sectional view taken along the line -■, and Figures 3 and 4 are process explanatory views. 1... Support stand, 3... Hook forming section, 4... Mold, 6...
Mold, 16...Hydraulic or pneumatic cylinder as a driving source, 18...Pushing table, 19...Cam plate 20...Cam groove, 21...Vertical groove, 22...Horizontal groove, 23...Pin, 2
4... Pivot joint, 25... Link, 26... Pivot joint, 27...
...Link, P...Press product.

Claims (1)

[Claims] 1. A mold that supports one side of the pressed product so that it can move upwardly but not move laterally, and a mold that faces the mold and supports the other side of the pressed product and molds the edge of the other side. a mold having a hook-forming part for holding a bent part having a U-shaped cross section; one of the two molds is provided on a support base so as to be movable toward the other; between 1
A pressed product pushing stand is arranged to be movable in the vertical direction by two driving sources, and has a vertical groove formed in the vertical direction and a horizontal groove formed by bending from the upper end thereof toward the movable mold. At least one cam plate having a cam groove is fixed to the lower surface of the push-up table, and a pin is slidably fitted into the cam groove, and one end of the mold is movable and the other is immovable. 2. A press product removing device, wherein the other ends of at least a pair of links are pivotally connected to the support base in the mold or in the vicinity thereof, and the other ends of the links are pivotally connected to the pin.