JPH0117390Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an inter-press feeder.

The feeder between presses is as shown in FIG. 1, and the feeder 2 attached to one press machine 1
Then, the panel A formed by this one press machine 1 is taken out onto the upstream end of the conveyor feeder 3, and then this panel A is conveyed to the downstream end of this by the conveyor feeder 3, and then the panel A is transferred to the other press machine 4. The panel A on the downstream end of the conveyor feeder 3 is carried into the other press machine 4 by the other feeder 5 mounted on the conveyor feeder 3 .

The feeders 2 and 5 have a running base 8 connected to the lower ends of parallel links 6 and 7 whose upper ends are connected to a vertically movable plate (not shown), and one of the parallel links 6 and 7. When the swing lever 9 connected to swings in the feed direction, the traveling base 8 reciprocates in the horizontal direction.

A holder 10 is connected to the traveling base 8, and an attachment 12 having a vacuum cup 11 attached to its tip is attached to the holder 10.

For inter-press feeders as mentioned above,
Since it is not mechanically connected to the press machine, if the two are out of synchronization, the feeder attachment 12 may interfere with the mold. When this attachment 12 interferes with the mold, a large force acts on the attachment 12, which may damage the attachment, the traveling base 8, and the feeder.

This invention was developed with the above in mind, and when the attachment interferes with the mold,
To provide an inter-press feeder in which the attachment is removed from the running base and no unreasonable force is applied to the attachment, the running base, and even the feeder.

Embodiments of the present invention will be described below based on FIG. 2 and subsequent figures.

A groove 15 with an open lower side is provided in the feed direction in the running base 8 connected to the ends of the parallel links 6 and 7 of the feeder, and a holder 10 is inserted into this groove 15.
A protrusion 16 provided on the ridge 16 is fitted to be slidable in the feed direction and downward direction. Projection 1 of this holder 10
There are grooves 17, 17 on both sides of 6 along its entire length.
A positioning hole 18 is provided in the middle of the longitudinal direction to pass through in the lateral direction. Further, a conical ball contact surface 18a is provided at the edge of the hole 18.

Ball holes 19, 19 are provided on both side walls of the groove 15 of the traveling base 8 in a direction perpendicular to the groove, and positioning balls 20, 19 are provided in both holes 19, 19.
20 are fitted. The balls 20, 20 face the grooves 17, 17 of the protrusion 16 of the holder 10, and are adapted to engage with the positioning hole 18.

Both balls 20, 20 are inserted into the lever 2 from both outside.
It is held down at 1 and 22. Both levers 21,
21 is urged in the pressing direction by a spring 23.

A protrusion 24 is provided on the upper surface of the protrusion 16 of the holder 10, and when the positioning balls 20, 20 are engaged with the positioning hole 18 of the protrusion 16, this protrusion 24 engages a limit switch 25 provided on the travel base 8. The contacts 26 of the two are in contact with each other.

The holder 10 is provided with a support hole 27, and the base of the attachment 12 is fitted into the hole 27 so as to be removable and non-rotatable. At the tip of the base of the attachment 12 is a constriction 2.
8 is provided. On the other hand, on the holder 10, a locking piece 29 that engages with the constricted portion 28 is radially aligned with the spring 3.
It is biased at zero and is slidably provided in the radial direction. The above-mentioned attachment 12 is attached to this locking piece 29.
There is a hole 31 through which the base passes through, and after the base is inserted into the hole 31, the locking piece 29 is displaced in the radial direction, so that the locking piece 29 engages with the constricted portion 28 of the base.

In the above configuration, the attachment 12 is held in the holder 10 by inserting its base into the holder 10 and engaging the locking piece 29 with the constriction 28 . The holder 10 is held by fitting the protrusion 16 into the groove 15 of the traveling base 8 through the balls 20, 20 that engage the grooves 17, 17 on both sides of the protrusion 16. Ru. At this time, the balls 20, 2 are attached to the ball contact surfaces 18a, 18b provided on both sides of the protrusion 16 of the holder 10.
0, the holder 10 is positioned and held on the traveling base 8.

The holding force at this time depends on the pressing force of the spring 23, but the holding force in the vertical direction is large with respect to the feed direction of the holder 10. That is, the balls 20, 20 are placed in the positioning hole 1 in the feed direction.
The holder 10 can be moved in the feed direction simply by disengaging from the ball contact surface 18a of the holder 8, but in the vertical direction, in addition to engaging with the positioning hole 18, it is necessary to overcome the grooves 17, 17. In order to disengage this engagement, a force greater than that in the feed direction is required, and the weight of the holder 10 or less is held by this force. When a downward force equal to or greater than a predetermined value is applied to the holder 10, the protrusion 16 of the holder 10 is released downward from the groove 15 of the travel base 8.

However, when the attachment 12 interferes with the mold of the press machine during operation of the inter-press feeder, and a force exceeding a predetermined force is applied to it in the feed direction, the holder 10 holding the attachment 12 and the traveling base 8 in the feed direction is disengaged in the feed direction, and the above force is prevented from acting on the traveling base 8. Also, at this time, holder 1
The position of the protrusion 24 provided on the protrusion 16 of 0 is shifted from the limit switch 25, the limit switch 25 is activated, and the inter-press feeder is stopped from this signal.

In addition, in the above operation, if a force exceeding a predetermined force is applied downward to the attachment 12, the holder 1
0 is removed downward by the traveling base 8, and a downward force exceeding a predetermined value is prevented from acting on the traveling base 8.

Since the present invention is as described above, when a predetermined force or more is applied to the attachment 12 of the inter-press feeder in the feed direction and downward direction, the engagement with the traveling base 8 is automatically released. A large force in the feed direction and in the downward direction is prevented from acting on the traveling base 8, and damage to the inter-press feeder due to the force in the above directions can be prevented. Particularly, according to the present invention, both the traveling base 8 and the attachment 12 can be engaged and disengaged by the same mechanism in response to the forces in the feed direction and the downward direction, and an inter-press feeder having both of the above functions can be used. It can be obtained even with a simple configuration.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the entire press feeder, Fig. 2 is a cutaway front view of the main parts, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is - in Fig. 2.
5 is an enlarged sectional view of the ball engaging portion, and FIG. 6 is a front view showing the positioning hole portion in which the ball engages. 8 is a traveling base, 10 is a holder, 12 is an attachment, 15 and 17 are grooves, 16 is a protrusion, 18a
is the ball contact surface, 19 is the ball hole, and 20 is the ball.

Claims (1)

[Scope of utility model registration request] A groove 15 with an open bottom side is provided in the feed direction on the running base 8 which is horizontally movable in the feed direction, and ball holes 1 are provided in both side walls of this groove 15.
9 and 19, and a holder 10 connected to the traveling base 8 includes a protrusion 1 that fits into the groove 15 of the traveling base 8 so as to be slidable in the feed direction and downward.
6, and grooves 17, 17 are provided on both sides of this protrusion 16 in the feed direction, and a conical ball contact surface 18 is provided on both sides midway in the longitudinal direction.
a, 18a are provided, and the protrusion 16 is inserted into the groove 15 of the base 8.
The ball contact surface 18a of this protrusion 16,
18a, holes 19, 19 for balls of the traveling base 8
engage the positioning balls 20, 20 fitted to the
The levers 21, 21, which are spring-biased, are brought into contact with the outsides of the two positioning balls 20, 20, and the holder 1 is
0 is connected to a traveling base 8.