JPS6253248B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a finger reversing device in a transfer press.

When changing the setup of a transfer press, in addition to replacing the mold, it is also necessary to replace the transfer finger.

The transfer fingers are set on the transfer bar in a number corresponding to the number of required stations and are attached via finger bases.

Generally, a transfer bar is divided into three parts, one on each side and one in the center, and each part is connected by a bar connector.

If you want to replace the mold now, as shown in Figure 1, disconnect the bars a and a on both sides using the bar connectors, leave them on the clamp boxes on both sides, and then connect the mold b and the center bar c. It was placed on a moving bolster, moved outside the press room, and mold b and fingers were replaced.

This not only makes work easier, but if two movable bolsters are installed, setup changes can be done externally.
Although this will shorten setup changeover time, the leftover fingers attached to the upstream bar inside the upright must be replaced inside the press room, making the work difficult and requiring internal setup. It was becoming.

The present invention has been made in view of the above circumstances, and its purpose is to automatically transfer the finger base to the central bar when there is only one set of idle stations on the upstream bar, and to provide a movable bolster. To facilitate replacement work by eliminating the need to replace fingers within the press room by being able to carry them out of the press room together.

Hereinafter, the present invention will be explained with reference to FIG. 2 and subsequent figures.

In the drawing, 1 is the rear left abright, 2 is the upstream bar, 5 is the center bar, 17 is the movable bolster,
is the NO1 station and is the NO2 station.

A bracket 8 is fixedly installed inside the upright 1, and a cylinder device 16 is mounted on the bracket 8. A mounting base 20 is attached to the rod side of the cylinder device 16, and this mounting base 2
0 is guided and supported by a guide mechanism 21 held by the bracket 8 in the moving direction of the rod of the cylinder device 16. A hydraulic swing motor 9 is mounted on the mounting base 20, and a shaft 11 connected to the output shaft 9a of the hydraulic swing motor 9 via a coupling ring 10 is rotatably provided on the mounting base 20. An arm 13 is fixed to the shaft 11. An operating cylinder 14 is attached to the tip of the arm 13, and a pin 15 is attached to the rod side of the operating cylinder 14.

A bracket 23 is provided on the upper surface of the end of the central bar 5.
is provided, and one end of the finger base 4 is attached to the bracket 23 by a pin 7. A finger 6 is attached to the finger base 4. Further, a hole 12 is provided in the side surface of the finger base 4, with which the pin 15 is removably engaged.

The upstream bar 2 is provided with an auto clamper 3, and the rod 3a of the auto clamper 3 is inserted into a hole 24 provided on the upper surface of the finger base 4. Become.
Note that c in the drawing is a separation plane.

Next, the operation will be explained.

At the time of setup change, the upstream bar 2 and the center bar 5 are moved integrally to the outermost position B by a separate forced unclamping device (not shown). The arm 13 is advanced from position E to position F by cylinder device 16. In this state, the auto clamper 3 operates to disconnect the finger base 4 and the upstream bar 2. Next, another bar connector device (not shown) installed inside the upstream bar 2 is activated, and the auto clamper 3 inside the upstream bar 2 is also moved by the same amount, so that the rod 3a of this is moved by the same amount as the hole 23. It comes to position H within the diameter portion 24. This makes the finger base 4 reversible.

Next, the actuating cylinder 14 of the arm 13 is actuated and the pin 15 enters the hole 12. Then, the hydraulic swing motor 9 is driven, and the finger base 4 is reversed and transferred to the center bar 5.

Thereafter, the actuating cylinder 14 is actuated and the pin 15
is removed from the hole 12, the hydraulic swing motor 9 is reversely rotated again, and at the same time the cylinder device 16 is actuated to return the arm 13 to the hole position E.

In this way, the movable polster 17 moves in the J direction with all the fingers 6 placed on the center bar 5, and the mold 26 and the fingers 6 are placed outside the press room.
Change the setup.

When the setup change is completed, the moving bolster 17 is moved again.
enters the press room and performs the opposite operation to the above to complete the setting of the finger 6 of the NO1 station.

Since the present invention has been described in detail above, when there is only one set of idle stations on the upstream bar, the finger base can be automatically transferred to the central bar and carried out of the press room together with the movable bolster. This eliminates the need to replace fingers in the press room, making the replacement work easier.

[Brief explanation of the drawing]

Fig. 1 A, B, and C are explanatory diagrams of the setup change of a conventional general transfer press, Fig. 2 is a plan view of an embodiment of the present invention, Fig. 3 is a front view of the same, and Fig. 4 is the same as Fig. 3. 5 is a cross-sectional view taken along the - line, and FIG. 5 is a view taken from the direction of FIG. 3. 1 is upright, 2 is upstream bar, 3 is auto clamper, 4 is finger base, 5 is center bar,
13 is the arm, 15 is the pin.

Claims (1)

[Claims] 1 A finger base 4 is provided near the separation surface c of the center bar 5 from the upstream bar 2 so as to be reversible from the upstream bar 2 side to the center bar 5 side and vice versa, and a hole 12 is provided in the side of the finger base 4. , upstream bar 2
An auto clamper 3 is provided to removably connect the upstream bar 2 and the finger base 4, a bracket 8 is provided to the upright 1, a mounting base 20 is provided to the bracket 8 via a guide mechanism 21, and it is attached to the bracket 8. A cylinder device 16 for moving the base 20 is provided, an arm 13 is provided on the mounting base 20 that swings by the drive of the swing motor 9, and the arm 13 is capable of engaging and disengaging from the hole 12 of the finger base 4 by actuation of the operating cylinder 14. A finger reversing device for a transfer press, characterized in that a pin 15 is provided to engage with the finger.