JPS6027544Y2 - Feedbar connection device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a feed bar coupling device used in a transfer press or the like.

In transfer presses, etc., in order to shorten setup changeover time, a part of the feed bar, that is, the part where the fingers are provided, is dedicated to the mold, and this part of the feed bar is separated and A system that has a structure that can be connected is often adopted.

The present invention provides a feed bar coupling device that allows the feed bar to be replaced automatically by utilizing the lifting and lowering operations and traveling operations of a moving bolster.

Hereinafter, an embodiment of the present invention will be described based on the drawings.

In FIGS. 1, 2, and 3, a first feed bar 2 and a second feed bar 3 constituting a feed bar 1 are in contact with each other at end surfaces that are slightly inclined in the vertical direction.

Usually, the first feed bar 2 is provided at both ends of the second feed bar 3, and is connected to and driven by a transfer device.

In this embodiment, the ends of both feed bars are separate parts due to processing reasons, but the function remains the same even if they are integrated.

A piston 4 is provided in the first feed bar 2 and is movable in the longitudinal direction of the feed bar by means of pressure fluid.

The first feed bar 2 is provided with openings 2b and 2c for supplying this pressure fluid.

Flanges 4a and 4b are fixedly installed at both ends of the piston 4, and a cylindrical holter 5 is slidably fitted on the outer periphery of the piston 4 between them.

The ball 7 fits into the through hole 5a in which the holder 5 is provided.

An inclined surface 4C for pushing the ball 7 radially outward is provided on the outer circumference of the piston 4.

The spring 6 biases the piston 4, and prevents the feed bar from being disconnected even if sufficient pressure fluid for biasing the piston 4 is not supplied due to an accident.
It is interposed between the first feed bar 2 and the piston 4 for safety.

A recess for holding the ball 7 is provided on the inner surface of the hole in which the holder 5 of the second feed bar 3 fits.

The second feed bar 3 includes a hook member 3d for locking to a locking member 2d provided on the first feed bar 2;
A piece 3e for positioning the freely adjustable fit bars 2, 3 in the width direction is provided in a notch portion of the locking member 2d shown in FIG.

That is, the locking member 2d, the hooking member 3d, and the piece 3e have shapes and dimensions that mesh with each other.

The effect will be explained below.

(b) When disconnecting the feed bar.

1 and 2, when the pressure fluid is discharged from the opening 2b and the pressure fluid is supplied to the opening 2C, the piston 4 moves to the left in the figures.

When the piston 4 moves to the position shown in Fig. 4, the piston 4
The collar portion 4b abuts against the holder 5, and the balls 7 escape radially inward.

Furthermore, the piston 4 moves to the left and stops at a position where the left end of the piston 4 comes into contact with the hole end surface of the first feed bar 2, as shown in FIG.

If the mold is provided with a receiver for receiving the second feed bar 3, when the moving bolster (not shown) is raised, the second feed bar 3 will rise as shown in FIG.
The feed bar is completely separated.

When the moving bolster is moved in a direction perpendicular to the paper plane of FIG. 6, the second feed bar 3 is conveyed out of the press.

(b) When connecting feed bars.

The second feed bar 3 to be used is carried into the press by a moving bolster in the positional relationship shown in FIG.

When the moving bolster is placed on the floor, the first feed bar 2 and the second feed bar 3 engage with each other as shown in FIG.

In FIG. 5, when the pressure fluid is discharged from the opening 2c and the pressure fluid is supplied to the opening 2b, the piston 4 moves to the right.

At this time, the holder 5 is pushed by the piston 4 via the ball 7 and the inclined surface 4c of the piston 4, and the step 5b of the holder 5 is pushed by the step 2e of the hole provided in the first feed bar 2.
Move to the right until it touches.

Furthermore, when the piston 4 moves to the right, the balls 7 are pushed outward in the radial direction by the inclined surface 4c of the piston 4, and the balls 7 are pushed outward in the radial direction.
enters the recess of the feed bar 3, and both feed bars are connected.

[Figure 2] Since the present invention has the above-mentioned configuration, the feed bar can be automatically connected, and the feed bar can be replaced automatically by using the moving bolster's up/down movement and traveling movement. can.

That is, setup time can be shortened and productivity can be improved.

[Brief explanation of the drawing]

FIG. 1 is a side view, FIG. 2 is a longitudinal cross-sectional view, FIG. 3 is a cross-sectional view taken along the line ■-■ in FIG. 2, and FIGS. 4 to 6 are operational drawings. 1 is the feed bar, 2 is the first feed bar, 3 is the second feed bar
4 is a piston, 5 is a holder, 6 is a spring, and 7 is a ball.

Claims (1)

[Scope of utility model registration request] In the connection device between the second feed bar 3 on the dividing side of the transfer press and the first feed bar 2 arranged on both sides thereof and connected to the transfer, the feed bar 2,
3, the upper part of which is inclined toward the first feed bar 2 side, and the protruding engagement provided in the width direction on the end surfaces 2a, 3a that contact each other and the upper surface of the end of the first feed bar 2. A locking member 2d, a hooking member 3d provided on the upper surface of the end of the second feed bar 3 and having a piece 3e that engages with the locking member 2d for positioning, and a hooking member 3d built in the longitudinal direction of the first feed bar 2. A rod having a flange 4b at its tip is slidably fitted between the piston 4 which protrudes and retracts from the end surface 2a, and the flange of the piston 4, has a stepped portion 5b at the base, and extends from the end surface 2a together with the piston 4. A cylindrical holder 5 that appears and retracts, and a ball 7 held in a radial through hole at the tip of the holder 5
, an inclined surface 4c provided upwardly from the small diameter rod portion on the side of the flange 4b of the piston 4, and a second feed bar 3 into which the piston 4 and holder 5 of the first feed bar 2 are fitted.
A feed bar coupling device comprising a recess 3b for engaging a ball 7 on the inner periphery of the hole.