JPH0118276Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for feeding materials to a processing device for wire rods, plate materials, etc., and its purpose is to provide a device that can feed materials quickly and accurately. be.

In conventional material feeding devices, the gripping claw mounting block that grips the material is connected to the swinging rotation shaft and swinging arm via a link mechanism. There was a risk that the operation would be inaccurate, resulting in a significant drop in performance, and it also had the drawback of not being able to operate at high speed, and the equipment was large and complex, requiring maintenance and maintenance.
There was a drawback that maintenance was troublesome.

The present invention does not use a link mechanism, but rather allows a pair of gripping claw mounting blocks to which gripping claws are directly attached to be operated directly by a swinging rotation shaft and a swinging arm that operate at a predetermined timing. The defects have been removed.

An embodiment of the present invention shown in the accompanying drawings will be described in detail below.

In Fig. 1, reference numeral 1 denotes a base, and on the top of the base 1 there are supporting frames 3 facing parallel to each other with bolts 2, 2'.
3 is attached, and a guide shaft 4 is fixed above the support frames 3, 3 by a set bolt 5, and an oscillating rotation mechanism connected to an appropriate oscillating rotation mechanism (not shown) parallel to the guide shaft 4. A shaft 6 is rotatably supported via a flange 7 and a metal 8. Reference numerals 9 and 9' denote a pair of gripping pawl mounting blocks that are attached to the guide shaft 4 via a slide metal 10 so that they can rotate individually in the circumferential direction of the shaft and can slide together in the axial direction, and the slide metal 10 and the upper part is fitted into the slide metal 1.
It is attached by a collar portion 10' of 0, a fixed disc 11, a disc spring 12, and a retaining ring 13. Reference numerals 14 and 14 denote legs provided on the pair of gripping claw mounting block bodies 9 and 9', which are positioned so as to sandwich both side surfaces 16 and 16 of the square shaft portion 15 of the swing rotation shaft 6, and Semi-cylindrical grooves 17, 17 are located symmetrically on each inner surface of 14, 14, that is, on each surface facing the square shaft portion 15, one of which is located below the axial center of the square shaft portion 15, and the other is located symmetrically above the axial center of the square shaft portion 15. The groove 1
7, 17, semi-cylindrical bodies 18, 18 are fitted so as to be slidable only in the circumferential direction, and the semi-cylindrical bodies 18, 18
The cut surfaces 19, 19 are in contact with both side surfaces 16, 16 of the square shaft portion 15. Reference numeral 20 denotes an edge protruding from the upper rear side of one 9' (right side in FIG. 1) of the pair of gripping claw mounting block bodies 9, 9', and a screw hole 21 is bored in the edge 20. A flanged pin 22 is screwed into the screw hole 21. Reference numeral 23 denotes a rolling element fitting groove formed in the lower part of the other 9, and a rolling element (roller, etc.) 25 attached to a swinging arm 24 of a swinging mechanism (not shown) is installed in the fitting groove 23 as appropriate. A spring 27 is inserted between the spring receiving portion 26 on the upper surface of the fitting groove 23 and the flanged pin 22 of the gripping claw attachment block body 9 . Reference numerals 28 and 28' designate material gripping claws that are detachably attached to the respective gripping claw attachment block bodies 9 and 9' with screws 29 and 29', and 30 is a material.

Next, the effect will be explained.

When the swing rotation shaft 6 performs swing rotation in the direction of the arrow a in the state shown in FIG.
9' is a semi-cylindrical groove 17 on the inner surface of the legs 14, 14;
The semi-cylindrical bodies 18, 18 fitted in the material 30 (in this case (indicates a wire rod). At this time, the swing arm 24 swings and rotates in the direction of arrow Y in FIG. 5 by a swing mechanism (not shown).
The gripping claw mounting block body 9 via the rolling element 25,
9' along with the slide metal 10 in the direction of arrow Z in the same figure.
It moves in the direction. When the swinging arm 24 reaches the stopping point in the Z direction, the swinging rotation shaft 6 starts swinging and rotating from the stopping point in the X direction to the stopping point in the X' direction in the figure. If the swing rotational movement of the swing rotation shaft 6 is set, the swing rotation shaft 6 will enter the return swing rotation, so that the gripping claw mounting block bodies 9, 9' can be moved from the state shown in FIG. 4 to the third position. Returning to the state shown in the figure, the gripping claws 28, 28' are released. Also at this time, the swing arm 24
If the swinging rotational movement of the swinging arm 24 is set so that it starts swinging and rotating from a stationary point in the Y direction to a stationary point in the Y' direction in FIG. As it enters the return swing rotation,
The gripping claw mounting blocks 9, 9' return to the starting position.

The above operation will be explained with reference to the graph of FIG. 7. The swinging rotation shaft 6 begins to swing and rotate, and the gripping claw attachment block bodies 9, 9' move in the direction of gripping the material 30. At this time, the gripping claw mounting blocks 9, 9' are in a stopped state with respect to the guide shaft 4.

The gripping claw mounting blocks 9, 9' are gripping the material 30, and as the swinging arm 24 begins to swing and rotate in the Y direction, the gripping claw mounting blocks 9, 9' move in the Z direction (feeding direction). Start moving.

Since the swing rotation by the swing arm 24 enters the stopping period, the gripping claw mounting blocks 9, 9' are stopped with respect to the guide shaft 4, and the gripping claw mounting blocks 9, 9' stop gripping the material 30. Start moving in the direction of opening.

The gripping claw mounting block body 9 for the material 30,
9' becomes in a state where its grip is released, and the gripping claw attachment block bodies 9, 9' begin to move in the return direction, that is, in the Z' direction.

The gripping pawl mounting blocks 9, 9' return to the starting position with their grips released.

As described in detail above, the present invention combines the operations of the swing rotation shaft and the swing arm at a predetermined timing, thereby repeatedly performing the - movement to feed the material.

According to the present invention, a pair of gripping pawl mounting blocks are attached so as to be rotatable individually in the circumferential direction of the guide shaft and slidably together in the axial direction, and the legs of each of the gripping pawl mounting blocks are The square shaft of the swinging rotation shaft is positioned between the parts, and the rolling element of the swinging arm is positioned in the rolling element fitting groove provided in one of the pair of gripping claw mounting blocks, and the swinging rotation is performed. Since the movement of the shaft and the swinging arm can be directly converted into the material gripping, releasing, feeding, and movement of the pair of gripping claw mounting blocks, the material can be gripped, released, and fed through the link mechanism. This eliminates the rattling caused by wear in the joints of the links, which was the case with conventional devices, and as a result, the operation can be performed accurately and reliably, allowing work to be performed at high speed in a stable state. In addition, by eliminating the link mechanism, the device can be made smaller and simpler, making maintenance and maintenance easier.

Furthermore, according to the present invention, the pair of gripping claw mounting blocks can be reliably returned by the interposition of a spring, and have the effect of suppressing vibration and noise.

In this embodiment, an example has been described in which the swinging rotation of the pair of gripping claw mounting blocks is performed by the square shaft portion provided on the swinging rotation shaft, but the present invention is not limited to this. The position and structure are not limited to those shown.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway longitudinal sectional front view, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Figs. 5 is an overall perspective view, FIG. 6 is a perspective view of the swing rotation shaft, and FIG. 7 is a timing diagram of the swing rotation shaft and the swing arm. 1... Base, 2, 2... Bolt, 3, 3... Support frame, 4... Guide shaft, 6... Swing rotation axis, 9,
9'... Gripping claw mounting block body, 10... Slide metal, 10'... Flange, 11... Fixed disc,
12...Disc spring, 13...Retaining ring, 14,14...
... Leg part, 15 ... Square shaft part, 17, 17 ... Groove, 1
8, 18... Semi-cylindrical body, 19, 19... Cut surface,
22... Pin, 23... Rolling element fitting groove, 24...
Swinging arm, 25...Rolling element (roller, etc.), 27...
...Spring, 28, 28'...Material gripping claw, 30...
Material, X, X'...Swing rotation range of the swing rotation axis,
Y, Y'... Swinging rotation range of the swinging arm, Z, Z'...
...This is the sliding range of the gripping claw mounting block body.

Claims (1)

[Scope of utility model registration request] A guide shaft and a swing rotation shaft are arranged parallel to each other at a predetermined interval on the support frame of the base, and a pair of gripping claw mounting blocks are mounted on the guide shaft so as to be rotatable individually in the circumferential direction, and also in the axial direction. The angular shaft portion of the oscillating rotating shaft is attached between each leg of the gripping claw mounting block so that the gripping claw mounting block body can be rotated individually in the circumferential direction of the guide shaft. Further, the rolling element of the swinging arm that swings and rotates in the axial direction of the guide shaft is fitted into the rolling element fitting groove provided at the lower part of one of the legs of the pair of gripping claw mounting blocks, and the A spring member is interposed between the spring receiving portion on the upper surface of the rolling element fitting groove and the protruding edge provided on the upper back surface of the other gripping claw mounting block body, and the gripping claws are removably provided on each gripping claw mounting block body. material feeding device.