JPS6331788Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a material supply device for a press, and more particularly to an operating mechanism suitable for being incorporated into a press material supply device for staggered feeding of press material to the press.

In Japanese Patent Application No. 57-146346, the inventor of the present application proposed a material that enables high-speed, high-precision material feeding to a press and allows adjustment of material feeding amount without the need to replace parts. A feeding device was proposed.

The material supply device is provided with a base that can reciprocate toward the press, and a grip that can reciprocate on the base along a movement path perpendicular to the movement path and that grips the press material. An actuating device is provided for each of the jaw holders. Each actuating device includes a swinging arm connected to the base or the Jyo holder via a link material, and a rotating shaft adjustable in the longitudinal direction of the swinging arm to constitute a swinging fulcrum of the swinging arm. and a fork member that slidably receives the swing arm in its longitudinal direction; a cam device associated with the swing arm for swinging the swing arm about the swing fulcrum; and a control arm for swingably holding the swing arm.

According to the actuating device, by changing the height position of the fork member, the link member is connected to the swing arm that swings about the rotation axis of the fork member via the first pivot. can vary the reciprocating stroke of the base or jaw holder coupled via the link member, so that the pressing material can be pressed in a desired zigzag pattern. I can send this in a staggered manner as much as possible.

By the way, since the base reciprocates toward the press, it is not necessary to set the reciprocating motion of the base to zero, but in order to enable linear feeding of the press material, the amount of movement of the JIYO holder relative to the base must be set to zero. It needs to be zero. In order to set the amount of movement of this Jyo holder to zero, in the actuating device provided in association with the Jyo holder, the rotation axis of the fork member is set to the pivot axis of the swing arm to the link member. 1 axis.

However, since the swing arm is connected via a second pivot to the control arm, which is arranged substantially parallel to the control arm and has a different length from the control arm, the first control arm of the swing arm The pivot causes a slight swing about the second pivot as the swing arm swings. Therefore,
Even if the rotation axis of the fork member is aligned with the first pivot axis when the swing arm is in the vertical position, a shift occurs between the two as the swing arm swings, so that the link member Since a slight reciprocating movement occurs, the jio holder cannot be kept completely stationary with respect to the base.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an actuation mechanism for a press material supply device that allows accurate linear feeding while keeping the jio holder stationary relative to the base.

The present invention provides a mechanism for actuating a jio holder movably supported on a base, the mechanism being angularly disposed with respect to a link member extending from the jio holder along a path of motion of the jio holder and coupled at one end to the link member. a swinging arm; a fork member having a rotation axis adjustable in the longitudinal direction of the swinging arm and slidably receiving the swinging arm in the longitudinal direction;
a cam device for giving the swinging arm a swinging motion about the rotational axis, the end of the swinging arm moving in an arcuate trajectory about the pivot axis in relation to the other end of the swinging arm; It is characterized by providing a guide means for guiding along the route.

According to the present invention, the guide means functions as a holding means for the swing arm, and when the rotation axis of the fork member is at a position deviated from the height position of the pivot shaft, the guide means is adapted to adjust the position of the fork member. Therefore, the stroke of the reciprocating movement of the link member accompanying the swinging of the swinging arm can be set to a desired value, thereby making it possible to reciprocate the J-Y holder with a desired stroke. Further, when the height position of the fork member is adjusted so that the rotation axis is aligned with the pivot axis, the guide means restricts the swing arm from swinging about the pivot axis. The pivot does not swing with the swing of the swing arm, but is held in a position aligned with the rotation axis, so that the link member is completely stationary, thereby causing the jyo holder to move forward. It can be held stationary relative to the base.

The features of the invention will become clearer from the following description of the illustrated embodiment.

The press material supply device 10 according to the present invention has a first
As shown, a base 1 reciprocates on a track 12 extending towards a press (not shown).
4 and a track 1 of the base 14 provided on the base.
2, and an actuating mechanism 20 for reciprocating the holder.

The jaw holder 18 is provided with a well-known grip, not shown, which grips and releases the press material in synchronization with the reciprocating movement of the base 14.

The actuation mechanism 20 is
8 along the path of motion or track 16 of the holder, and a swing arm 24 connected to the link member.

The link member 22 is arranged generally horizontally, and one end thereof is slidably engaged in a guide rod 26 provided on the jyo-holder 18 and extending parallel to the track 12, thereby controlling the movement of the jyo-holder 18 integral with the base 14. is allowed. Swing arm 2
4 is arranged substantially vertically, and one end or upper end thereof is connected to the other end of the link member 22 via a pivot 28 on one side thereof.

In connection with the swinging arm 24, the fork member 3
0, a cam device 32 and a guide means 34 are provided. The fork member 30 is connected to the swing arm 2.
4 is provided with a recess 36 for slidably receiving the swing arm in its longitudinal direction from the other side. Further, the fork member 30, as shown in FIG.
A rotating shaft 38 is provided on the side opposite to the side where the recess 36 is provided.
Equipped with. The rotating shaft 38 is rotatably supported in a bearing member 40, which supports a threaded member 42 disposed along the swinging arm 24 in a vertical position.
to be screwed together. The lower end of the screw member 42 is connected to the frame 44
The screw member 42 is received in a bearing 46 provided in the screw member 42 to allow the screw member 42 to rotate about its longitudinal axis. By rotating the screw member 42, the fork member 30 can be moved along the swing arm 24 in the vertical position in the longitudinal direction of the swing arm.

Since the upper end of the screw member 42 extends upward beyond the upper end of the swing arm 24, the rotation axis 38 of the fork member 30 is aligned with the pivot 28 by rotating the screw member 42. can be moved to position.

Referring again to FIG. 1, the cam mechanism 32
includes a plate cam 50 fixed to the drive shaft 48 and having a circular plane as a whole, and a cam follower 54 rotatably supported on the swing arm 24 via a pin 52 near the other end. The cam follower 54 is
The plate cam 50 is rotated by a coil spring 56 stretched between the swing arm 24 and the frame 44'.
is pressed against the circumferential surface of the

The guide means 34 includes a cam follower 60 consisting of a roller rotatably supported at the other end, that is, the lower end, of the swing arm 24 via a pin 58, and a cam follower 60 that guides the cam follower along an arcuate locus centered on the pivot shaft 28. The cam member 64 is provided with a guide groove 62 having an arcuate shape for guiding, and the cam member 64 is fixed to the frame 44.

The cam member 64 receives the cam follower 60 in its guide groove 62, thereby restricting the movement of the swing arm 24 in its longitudinal direction and holding the swing arm.

Therefore, when the fork member 30 is set at a desired height position between the pivot shaft 28 and the cam follower 54 of the cam mechanism 32 in the vertical position of the swing arm 24, and the drive shaft 48 rotates, the swing arm 24 swings around the rotating shaft 38 of the fork member 30. Therefore, by changing the height position of the fork member 30, the reciprocating stroke of the link member 22 connected to the one end of the swinging arm 24 along its longitudinal direction, that is, the stroke of the reciprocating movement of the link member 22 connected to the one end of the swing arm 24, The stroke of the reciprocating motion of the jog holder 18 relative to the base 14 can be changed.

Further, the fork member 30 is
When the swing arm 24 is adjusted to a height position that aligns with the pivot shaft 28, the swing arm 24 swings around the rotation shaft 38, but at this time, the swing arm 24 is aligned with the rotation shaft 38 by the guide means 34. Since the swinging movement about the pivot 28 is defined, the pivot 28 does not swing as the swinging arm swings, and the link member 22 remains stationary. As a result, the Jyo holder 18 is the base 1
Stand completely still for 4.

Therefore, according to the actuation mechanism 20, the jaw holder 18 can be reciprocated with respect to the base 14 with a desired stroke, and the fork member 30 can be moved by operating the threaded screw member 42.
By adjusting the axis of rotation 38 of the holder 18 into alignment with the pivot 28, the holder 18 can be kept completely stationary relative to the base 14, thereby ensuring accurate alignment of the press material in response to the reciprocating movement of the base 14. Delivery is possible.

According to the present invention, as described above, the other end of the swinging arm, whose one end is connected via the pivot to the link member connected to the Jyo holder, is moved along an arcuate trajectory centering on the pivot by the guide means. By making it possible to guide the jyo holder along the axis, the jyo holder can be reciprocated with a desired stroke by adjusting the swing fulcrum of the swing arm, and the jyo holder can be kept completely stationary with respect to the base. This allows accurate linear feeding of the press material.

[Brief explanation of the drawing]

FIG. 1 is a front view of the actuating device according to the present invention, and FIG. 2 is a side view of the actuating device taken along the line - shown in FIG. 14: Base, 18: Jiyo Holder, 20:
Actuation mechanism, 22: Link member, 24: Swing arm, 28: Pivot, 30: Fork member, 32: Cam device, 34: Guide means, 38: Rotating shaft, 40:
Bearing member, 42: Screw member, 60: Cam follower, 62: Guide groove.

Claims (1)

[Claims for Utility Model Registration] (1) A base that reciprocates toward the press is provided with a grip that is supported so as to be able to reciprocate along a motion path perpendicular to the motion path of the base and that grips the press material. an actuating mechanism for reciprocating a jyo-holder along its motion, the actuating mechanism being angularly disposed with respect to a link member extending from the jyo-holder along the path of motion of the holder, one end of which connects the link via a pivot; A swinging arm connected to a member, and a rotating shaft that is adjustable in the longitudinal direction of the swinging arm to constitute a swinging fulcrum of the swinging arm, and the swinging arm slides in the longitudinal direction. a fork member that can be received, a cam device located on the other end side of the swing arm relative to the fork member for imparting swing motion to the swing arm about the rotation axis; an actuating mechanism for a press material supply device, comprising guide means provided in association with the other end for guiding the end along an arcuate locus about the pivot axis. (2) A utility model in which the guide means includes a cam member having a guide groove along the arc locus, and a cam follower rotatably supported by the other end of the swing arm and engaged with the guide groove. An actuation mechanism according to registered claim (1). (3) The fork member is screwed into a rotatable screw member disposed along the swing arm in a vertical position, and is attached to a bearing member which can be vertically displaced by rotation of the screw member. Utility model registration claim No. (1) or (2), which is supported via a rotating shaft, and the rotating shaft is alignable with the pivot shaft.
Actuation mechanism described in section.