JPH0555213B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the supply and discharge of steel wire rods in a steel wire processing device that cold forges steel wire rods and reduces the diameter of the steel wire rods to a certain thickness. It is related to the device.

[Conventional technology]

Regarding cold forging, cold extrusion and forging of steel became possible by using the phosphoric acid coating method (Bonderite treatment), and cold forging also entered the field of press processing, and coining (coining) became possible. Relatively hard materials, e.g. low carbon It is now possible to process steel. When the processed material is a plate, it is called a blank, and when it is a bar, it is called a billet, and it is often formed using a more complicated flow than sheet metal press processing, and the shape may be completely different from the shape of the material. It is a characteristic. Therefore, residual stress, anisotropy, precipitation hardening, work hardening, etc. associated with plastic deformation are significant, and the ability to improve material quality during the processing process is also a major feature. Furthermore, it is economical, as it can be mass-produced and parts with relatively complex shapes can be manufactured with good precision without producing chips. As stated in Processing Dictionary page 162 "Cold forging" excerpt), this has been done for a long time.

A representative product using the above-mentioned cold forging is, for example, a spoke S as shown in FIG. As is well known, spokes S are used as parts of wheels of automobiles, motorcycles, bicycles, etc., and are used to connect the hub and rim of the wheel. That is, when used for an automobile, the spokes S are formed with a head S1 shown in FIG.
1, a bent portion S2 and a thick body portion S3 are formed, and a shaft portion S4 following the thick body portion S3 is reduced in diameter from the thick body portion S3 by swaging, and a threaded portion S5 is formed at the end of the shaft portion S4. is engraved. The head S1 mentioned above
are inserted into and engaged with holes provided in the hub, threaded portions S5 are threaded onto nipples from the rim side, and spokes S are stretched. Therefore, processing to make the diameter of the shaft portion S4 constant is important in maintaining the balance of the wheel, and similarly, the head portion S1 which is headed is also important in maintaining the strength of the wheel.

Note that the bicycle spokes S have bent portions S2,
Generally, the diameter of the thick body part S3 and the shaft part S4 are the same. Even in this case, a steel wire rod of a constant diameter is cut to a constant length, and processing is performed to extend and reduce the shaft portion S4 to a constant diameter using the steel wire rod.

In the processing of the spoke S,
Conventionally, the raw steel wire rod is held and inserted into the die, which is the processing part, and when the processing is finished, it is returned to its original position to release the processed steel wire rod, that is, the spoke S, and then the next material is inserted. The same operations as those described above are performed by gripping the spoke, and all processes are carried out using one gripping portion, which poses some problems in the time required to process one spoke S.

In addition, in cold forging, the material is supplied in one direction.
A device for swaging metal round bars with parallel holes is described in Japanese Patent Publication No. 56-20940. What is disclosed in the above-mentioned publication is that when a round bar is swaged, a pair of mounts are provided on the left and right sides of the swaging machine, and a round bar insertion device and a round bar withdrawal device for the swaging machine are moved to the respective mounts. The insertion device and withdrawal device have a built-in chucking mechanism and a rocking rotation mechanism for the round bar, and while giving rocking rotation to the round bar, both devices can be moved, opening and closing the chuck, etc. Although it is an excellent device for swaging, there are some problems in streamlining the supply and withdrawal of materials.

[Problem to be solved by the invention]

The steel wire that is the raw material for the spokes S mentioned above is relatively thin, and it is usually
Many spokes S of 30 to 60 are incorporated. Therefore, it is necessary to reduce the production cost without reducing the quality of the spokes S. Therefore, the present invention is useful when drawing and reducing the diameter of a steel wire rod by the above-mentioned cold forging, for example, in "Pipe Processing Method" by Masanobu Nakamura, published by Nikkan Kogyo Shimbun, June 10, 1985, page 46. When processing using a conventionally well-known rotary swaging machine as described in page 55 of The object of the present invention is to provide a steel wire feeding/discharging device for a steel wire processing device, which can be efficiently and quickly drawn out and discharged from a processing section in a fixed direction by using a plurality of gripping means.

[Means to solve the problem]

In order to achieve the above-mentioned object, the steel wire rod supply/discharge device in the steel wire processing apparatus according to the present invention includes a first gripping means for gripping the steel wire rod of the workpiece and supplying it to the die; a second gripping means having a hollow portion at the center for gripping the tip end thereof during processing of the steel wire supplied to the die, and rotating the second gripping means in the same direction as the die during processing of the steel wire; and a third gripping means that is moved in the axial direction while moving the rod and moved forward and backward by a rodless cylinder, and the third gripping means is inserted into the cavity of the second gripping means when processing the steel wire rod. The tip of the steel wire during processing is inserted into the tip of the third gripping means and moved together with the second gripping means, and when the processing of the steel wire ends, the movement of the second gripping means is stopped and at the same time the second gripping means is moved. The processed steel wire is released from the gripping means, the released steel wire is gripped by the third gripping means, the second gripping means is advanced toward the die, and the processed steel wire is It is characterized in that the third gripping means is moved back so as to be pulled out from the cavity of the second gripping means, and the processed steel wire is discharged.

[Effect]

A steel wire rod supply/discharge device in a steel wire rod processing apparatus according to the present invention includes a first gripping means 1 that grips a steel wire rod R as a workpiece and supplies it to a die 6;
When processing the steel wire R supplied to the die 6, the second die 6 has a cavity 22 in the center and is movable in the processing direction of the steel wire by gripping the tip thereof.
and a second gripping means 2 during processing of the steel wire R.
The tip of the steel wire R is inserted into the hollow portion 22 of the gripping means 2 and the rodless cylinder 39 is inserted.
The first gripping means 1 supplies the steel wire R to the die 6, and the tip Rb thereof is gripped by the second gripping means 2. When this happens, the first gripping means 1 opens its grip, releases the steel wire, and returns to its original position.
Next, the steel wire rod R to be processed is held and waited. The tip of the steel wire R at the processing position described above is
Rb is gripped by the second gripping means 2, and with the operation of the die 6, the second gripping means 2 moves in the direction of pulling the steel wire R, and the steel wire R is stretched and stretched by the die 6. Although the diameter is reduced, this steel wire R
During processing, the third gripping means 3, which is moved forward and backward by the rodless cylinder 39, enters into the cavity 22 of the second gripping means 2. The distal end of the steel wire rod R is inserted into the cavity of the second grasping means 2 and inserted into the distal end of the third grasping means 3, and in this state, the second grasping means 2 is used during processing of the steel wire R. With the movement of , the third gripping means 3 is also moving in the same direction, and when the processing of the steel wire R is completed, the second gripping means 2 stops its movement and at the same time releases the processed steel wire R′, It returns to the position before starting processing and waits for the next processing, but at the same time as the second gripping means 2 releases the processed steel wire R', the third gripping means 3 is inserted into the tip. Processed steel wire rod
By grasping the tip of R' and retreating so as to come out of the cavity 22 of the second grasping means 2, the processed steel wire R' is discharged. The amount of movement of the second gripping means can be reduced, and the steel wire can be linearly moved in one direction during feeding, processing, and discharge to the die 6, which is the processing section.

〔Example〕 Embodiments of the present invention will be described based on the drawings.

FIG. 1 and FIG. 2 show, for example, a processing device for a steel wire R, which is a workpiece material that is processed to become a spoke S,
The device is provided with a quadrangular pyramidal or conical die 6 in the center. Reference numeral 7 denotes a guide for guiding the insertion of the steel wire R, which is provided integrally with the die 6 on the side of the die 6 to which the steel wire R is supplied, and the entrance 7' of the guide 7 is an opening that widens toward the tip. It is said that

The die 6 is divided into two halves (top and bottom), but it is also possible to divide it into four or more parts, but since the steel wire R that is the workpiece is thin, the contact surface between the steel wire R and the die 6 is In order to increase the size, in this embodiment, the wedge is divided into two parts, and a wedge 8 whose inner periphery has a conical shape that can be engaged with the die 6 is slidably loosely fitted onto the outer periphery of the wedge, and the wedge 8 is rotated. By sliding and pushing it into the outer periphery of the die 6, the hole 6' of the die 6 is closed, and the steel wire R in the die 6 is shrunk to the desired diameter, thereby processing the steel wire R in the die 6.
A so-called swaging process is performed in which the steel wire R is stretched and reduced in diameter to obtain a desired outer diameter.

The dice 6 and wedge 8 described above are
For example, as described in the above-mentioned "Pipe Processing Method" published by Nikkan Kogyo Shimbun, pages 46 and 55, a motor (not shown) is set in a spindle (not shown) as is well known in the past. The wedge 8 is configured to be rotatable by a piston driven by the rotation of a cam or the operation of an air cylinder to push the wedge 8 against the die 6 as described above while the die 6 is rotating. I'm trying to process it.

Reference numeral 1 denotes a first gripping means consisting of a collect chuck for supplying the steel wire R, which is a workpiece material, to the die 6 described above. A steel wire R of at least a certain length is disposed on the supply side of the die 6 at a distance that allows the supply of the steel wire R, and the collet portion 10 at the tip of the collet chuck 1 faces toward the die 6. Then, the supply side of the steel wire R of the collect chuck 1 mentioned above (left side in the figure)
is provided with an air cylinder (not shown, but similar to that used in the third gripping means 3 to be described later) for tightening and releasing the collet 10. In order to protect and guide the collection chuck 1, a rodless cylinder, which is known per se, is used, in which an external moving body held by a magnet moves following the movement of an internal moving body that is moved within the cylinder by compressed fluid. (See, for example, Japanese Utility Model Publication No. 58-76804 and Japanese Patent Application Publication No. 62-246605), and the collection chuck 1 is moved using the external movable body of the rodless cylinder as a guide. The collecting chuck 1 grips the rear end Ra of the steel wire R, which is the workpiece, and moves to the stopping position 1a of the collecting chuck 1, so that the tip Rb of the steel wire R is provided close to the die 6. It is inserted and supplied into the die 6 via the guide 7.

Reference numeral 2 denotes a collect chuck which is a second gripping means, and as shown in FIGS. upper right side), the collet 20 at the tip of the second collet chuck 2 faces the hole 6' of the die 6,
The second collect chuck 2 is arranged to face the collect chuck 1, which is the first gripping means, through the receiver 40, the die 6, and the guide 7.

As mentioned above, the collet 20 is provided at the tip of the collet chuck 2, and the spindle 21, which forms a part of the collet chuck 2 to which the collet 20 is removably fixed, is provided at the longitudinal center of the collet chuck 2.
A cavity 22 is formed into which a collect chuck 3, which is a third gripping means to be described later, can be inserted and removed, and a case 23 is fitted around the outer periphery of the spindle 21, and the case 23 slides through bearings 24, 24. stand 2
It is supported by a stand 25 attached to 6. Further, 23a is a sleeve for expanding and contracting the collet, which is fixed to the case 23 and has a tapered portion at the inner periphery of the tip.

A timing belt or chain is suspended between the sprocket 29m fixed to the shaft 28 of the gear motor GM fixed to the frame 27 integrally attached to the stand 25 and the sprocket 29n fixed to the case 23, The case 23, the sleeve 23a, the spindle 21 integrated with the case 23, and the collet 20 fixed to the spindle 21 are rotated in the same direction as the rotation direction of the die 6.

The table 25 described above is placed on a slide table 26,
The slide base 26 is integrally connected to the slider 50, and the slider 50 is movable by a pulley 51 fixed to the shaft of a servo motor SM and a belt suspended around a ball screw 52. Therefore, the frame 27, the gear motor GM fixed thereto, and the second collect chuck 2
The slide table 26 on which the table 25 rotatably supported is placed can move forward or backward in the six directions of the dice as the slider 50 moves (in this embodiment, the movement in the six directions of the dice is forward or backward). (The movement away from the second collect chuck 2 is called retreat.), thereby the steel wire R of the second collect chuck 2
It is possible to move during machining and to return to the original position when machining is completed.

54 is a piston of a hydraulic cylinder 55 that engages with the rear end of the spindle 21 forming the second collect chuck 2;
is moved forward or backward by applying hydraulic pressure to the oil chambers 56 and 57, and the spindle 21 and the collet 20 at its tip engage the spindle 21 and the collet 20 at its tip.
The collet 20 is also moved forward and backward, and the collet 20 is slid onto the inner circumferential tapered portion of the sleeve 23a.
It performs 0 scaling. The collet 20 holds and releases the steel wire R by expanding and contracting the collet 20, but the movement of the spindle 21, that is, the piston 5 of the cylinder 55
4. A very small amount of movement is sufficient.

Reference numeral 3 denotes a collection chuck which is a third gripping means, and the third collection chuck 3 is slidably fitted loosely into a guide portion 32 protruding from the front side of the block 38. 3
A collet 30 is provided at the tip of a spindle 31 that forms the base 31, and the rear end of the spindle 31 is fitted and fixed to a mounting portion 34 protruding from a base 37, and an air cylinder 35 is attached to the rear end of the base 37. The air cylinder 35 and the spindle 31 of the collector chuck 3 are connected by a connecting culm 36, and the spindle 31 is moved forward and backward by the air cylinder 35.
The collet 30 fixed to the tip of the collet 1 is opened and closed.

The table 37 is engaged with a rodless cylinder 39 placed on a block 38, and the table 37 is moved by the operation of the rodless cylinder 39. Therefore, the table 37
The collect chuck 3 and the air cylinder 35, whose ends are fixed at the top, are moved in the direction of the die 6 by the operation of the rodless cylinder 39, using the guide portion 32 into which the third collect chuck 3 is loosely fitted as a guide. be moved forward or backward.

At the rear end of the stand 25 that supports the collect chuck 2, which is the second gripping means,
A holder 62 with a collar 63 protruding horizontally toward the stand 37 on which the collector chuck 3 is fixed.
The stop positioning rod 61 is fitted and fixed to the collar 63, and the stop positioning rod 61 is fixed.
is slidably supported by a bracket 64 at a suitable position in its length direction, and its rear end is provided with a guide portion protruding from the front side of the block 38 described above, into which the third collect chuck 3 is loosely fitted. A stop positioning rod 61 is slidably and loosely fitted below the third collector chuck 32 so as to be parallel to the third collector chuck 3. 33 is the positioning rod 6
A stop member 33 for positioning and adjustment is screwed to the rear end of the stop member 1. A shock absorbing protrusion 33a is provided at the end of the stop member 33, if necessary.

The third collect chuck 3 described above is moved forward together with the base 37 by the operation of the rodless cylinder 39, and the hollow portion 22 of the second collect chuck 2 is moved forward.
The collector 30 of the third collector chuck 3 is connected to the collector 2 of the second collector chuck 2.
0, the stopper 65 fixed to the front part of the stand 37 stops.The buffer protrusion 33a provided as needed at the end of the positioning adjustment stop member 33 at the rear end of the positioning rod 61 stops. This collision stops the operation of the rodless cylinder 39. Then, even when the operation is stopped, the movement of the third collect chuck 3 is absorbed by the buffer protrusion 33a, and the third collect chuck 3 is gently moved to the back of the collect 20 of the second collect chuck 2. You are made to sit down. Therefore, the stop position of the third collect chuck 3 is set by the stop positioning rod 61 and the positioning adjustment stop member 33 screwed to the rear end so as to be movable forward and backward. If the length of the movement is to be finely adjusted, the positioning adjustment stop member 33 is rotated.
3 is moved forward and backward relative to the stop positioning rod 61 for adjustment.

As mentioned above, the third collect chuck 3
is caused by the operation of the rodless cylinder 39.
enters the cavity 22 of the collection chuck 2,
Furthermore, the air cylinder 35 acts on the spindle 31 of the third collect chuck 3 connected to the connecting culm 36 to fix the tip of the spindle 31. A collet 30 is opened and closed, and the steel wire is gripped or released by opening and closing the collet 30.

67 is provided along the forward/backward movement path of the third collect chuck 3, and is parallel to the direction of advance/retreat of the third collect chuck 3 and at an angle of approximately 45° so as not to impede the forward/backward movement of the third collect chuck 3. This is a steel wire discharge chute installed obliquely. Also, 70 is
This is an adjustment bolt that the rear part of the rodless cylinder 39 comes into contact with to regulate the rear stopping position of the rodless cylinder 39, and the front stopping position of the rodless cylinder 39 can be adjusted as described above. regulated by an adjustment stop member 33,
Furthermore, when the stop member 33 is finely adjusted,
Accordingly, in order to finely adjust the rear stopping position of the rodless cylinder 39, in this embodiment, the adjustment bolt 70 is moved forward and backward with respect to the mounting portion 71 to adjust the distance between the adjustment stop member 33 and the adjustment bolt 70. I try to keep it constant. 80 is because the processed steel wire R' (see Figure 1) is stretched by diameter reduction, so each processed steel wire R' is not necessarily the same length.
This is a cylinder that drives a cutting mechanism that cuts this into a fixed size. The cutting mechanism may be provided, for example, in front of the steel wire discharge chute 67.

Since the present embodiment is constructed as described above, its operation will be explained as follows. collection 1
Grip by 0. At this time, it is preferable that the position where the steel wire rod R is gripped is always constant. In other words, if the distance from the tip Rb of the steel wire R to the gripping position is kept constant, the die 6 in the subsequent process
The length of the steel wire rod R can be processed with high accuracy.

As described above, one end Ra of the steel wire R is gripped by the first collect chuck 1 and moved forward to the fixed position 1a. At this time, the collect 20 of the second collect chuck 2 facing the rear of the die 6 operates the piston 54 of the hydraulic cylinder 55 to open the collect 20, and the third collect chuck 3 is opened by operating the rodless cylinder 39. Cavity 2 in spindle 21 of second collect chuck 2
The collet 30 at the tip of the third collet chuck 3 is opened by an air cylinder 35, and the collet 30 is located at the back of the collet 20 of the second collet chuck 2.

In the above state, the steel wire R is inserted through the die 6 via the guide 7 and fed into the collect 20 at the tip of the collect chuck 2, which is the second gripping means, which is waiting on the opposite side of the die 6. Insert the tip Rb of the supplied steel wire R. and,
At the time of this insertion, the tip end Rb of the steel wire R is inserted into the collet 30 of the third collet chuck 3 which has entered further into the cavity 22 provided in the spindle 21 than the collet 20 described above. With the tip Rb of the steel wire R positioned in this way, the piston 54 of the hydraulic cylinder 55 is operated to slide the collet 20 onto the tapered tip of the sleeve 23a, closing the collet 20 and securely tightening the steel wire 20. grip it. At this time, the dice 6 and the dice 6
The wedge 8 that operates the is rotating, and the second collect chuck 2 holding the steel wire R is also being rotated by the gear motor GM.

At the same time as the second collect chuck 2 grips the tip Rb of the steel wire R mentioned above, the first collect chuck 1 also grips the rear end of the steel wire R.
Release Ra and return to the original position and wait to grasp the next steel wire R.

The third collect chuck 3 moves forward as the base 37 that engages with the rodless cylinder 39 advances due to the operation of the rodless cylinder 39, but a stopper 65 fixed on the front side of the base 37 moves forward.
As the stop positioning rod 61 moves forward, the rear end of the stop positioning rod 61 collides with a push-button type buffering protrusion 33a protruding from the end of the positioning adjustment stop member 33, and due to this collision, the operation of the rodless cylinder 39 is stopped. stopped, and further presses the protrusion 33a to buffer its advancement;
The third collect chuck 3 can be gently stopped within the second collect chuck 2, and in this state, the third collect chuck 3 is moved together with the second collect chuck 2, which is movable by the drive of the servo motor SM. It will be pushed back, but at this time, as described above, the operation of the rodless cylinder 39 is stopped and it is in a free state.

The tip of the steel wire R with the second collect chuck 2.
When Rb is gripped, the slider 50 is moved backward by the drive of the servo motor SM, and the second collect chuck 2, which grips the tip of the steel wire R, is moved backward while rotating, and the wedge 8 is pushed against the die 6. The cold forging process is started on the steel wire R by repeatedly contracting and expanding the hole 6' of the die 6. At the same time, the slider 50 is moved backward by the drive of the servo motor SM to advance the process, and the processed The second collect chuck 2 that grips the steel wire R' and the third collect chuck 3 into which the tip of the steel wire R' is inserted are placed at positions 2a and 3a, respectively. 6 to the pull-out position (see Figure 1).

At the above-mentioned positions 2a and 3a, the action of the piston 54 of the hydraulic cylinder 55 is transmitted to the collet 20 of the second collet chuck 2 to open the collet 20 and release the tip of the processed steel wire R' that was being gripped.
Rb' is released, and the collect 30 of the third collect chuck 3, into which the tip of the steel wire R' has been inserted, is closed by the action of the piston 35, and the tip Rb' is gripped. When this third collect chuck 3 grips the processed steel wire R',
The slider 50 is advanced by the reverse rotation of the servo motor SM, and as a result, the second collect chuck 2 comes to a stop in the vicinity of the receiver 40, and is in a standby state for the next processing. Simultaneously with the advance of the second collect chuck 2, the third collect chuck 3, which has gripped the processed steel wire Rb', retreats due to the operation of the rodless cylinder 39, and quickly transfers the processed steel wire R' to the second collect chuck 3. Pull it out from the collector chuck 2, the rodless cylinder 39 moves back and stops at the position where it contacts the adjustment bolt 70, and the cylinder 3
5, the collet 30 is released and the steel wire R' is discharged onto the steel wire discharge chute 67. If it is not possible to obtain a certain length by processing as required, the cylinder 80 is operated to cut the steel wire to a certain length using a cutting mechanism disposed in front of the chute 67 for discharging the steel wire. The steel wire rod may be discharged from the steel wire discharge chute 67.

Furthermore, the reason why the second collect chuck 2 can be retracted at the same time as the third collect chuck 3 is processed is because the stop positioning rod is attached to the collar 63 of the holder 62 that projects from the stand 25 that is integrated with the slider 50. 61 is fitted and fixed, and the end of the positioning adjustment stop member 33 screwed onto the rear end of the stop positioning rod 61 is in contact with the stopper 65. This is because the platform 37 can be pushed forward via the stop positioning rod 61 while remaining in the state it was inserted into the collector chuck 2.

The above-described steps of supplying, processing, and discharging the steel wire R are performed repeatedly and are carried out extremely efficiently. However, control devices such as sensors and limit switches are installed at appropriate locations in the device to control the series of operations. There is.

In this example, the steel wire rod R that is the workpiece is
Since the gripping and movement during processing and the movement for discharging the processed steel wire are separated, the movement of the second collect chuck 2 during processing includes the rotation mechanism. The movement is kept to a minimum, and since the subsequent movement for discharging the processed steel wire is a long movement, it is carried out in the third collect chuck 3, which can speed up the discharging process. Also, when supplying and processing the steel wire R, the tip of the steel wire is held by the second collect chuck 2, and
Furthermore, the reason why the tip of the steel wire is inserted into the collect 30 of the third collect chuck 3 that enters the cavity of the second collect chuck 2 is to release the grip of the second collect chuck 2 at the same time after the processing is completed. By closing the collet 30, the item that has been inserted into the collet 30 of the third collet chuck 3 can be easily grasped, and the ejection after machining can be speeded up. For example, processing can be carried out without using a structure in which the third collect chuck 3 is advanced into the second collect chuck 2 and the tip of the steel wire is inserted into the collect 30 of the third collect chuck 3 as described above. When the third collect chuck is later disposed at the last position of the retraction of the second collect chuck 2, it is difficult to reliably insert the tip of the steel wire into the collect 30 of the third collect chuck 3, and also , it is necessary to add a mechanism for reliably stopping the second and third collect chucks at fixed positions, which inevitably complicates the mechanism and reduces speed. In this example, all equipment for supplying, processing, and discharging is arranged on the center line This made it possible to speed up the process of discharging the waste extremely smoothly.

〔Effect of the invention〕

The steel wire rod supply/discharge device in the steel wire rod processing apparatus according to the present invention supplies the steel wire rod as the workpiece to the die, and at the time of feeding, the tip end of the steel wire rod is
At the same time, the tip of the steel wire is inserted into the third gripping means that enters the cavity provided in the center of the second gripping means, and during this processing, The second and third gripping means are moved backward, and when the processing is completed, the movement of the second and third gripping means is stopped;
releasing the processed steel wire from the second gripping means;
At the same time, the third gripping means grips the tip of the steel wire, which had previously been simply inserted, so that gripping can be done extremely reliably and quickly. - Processing and discharging are performed in a fixed direction, so they are carried out smoothly and quickly, and are effective in supplying and discharging steel wire rods that are processed in large quantities.

When discharging the steel wire in the present invention, the gripping and movement necessary for processing and the movement for discharging are performed separately, so movement during processing is minimized and subsequent long-distance discharge is quickly carried out. It is a particularly useful ejection device for those that are processed in large quantities.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an explanatory diagram of the arrangement of each element for supplying, processing, and discharging steel wire in a steel wire processing device, and FIG.
A partial cross-sectional view of the discharge device, FIG. 3 is a partial cross-sectional view when the steel wire is fed and gripped from the first gripping means to the second gripping means, and FIG. 4 is a side view of a spoke suitable for swage processing. Show the diagram. 1: First gripping means 2: Second gripping means
3: Third gripping means 6: Dice R: Steel wire (raw material) R': Processed steel wire 21: Hollow part of second gripping means 20, 30: Collect.

Claims (1)

[Claims] 1 A first gripping means 1 that grips a steel wire rod R as a workpiece and supplies it to the die 6; The second gripping means 2 is moved in the axial direction while being rotated in the same direction as the die 6 when processing the steel wire R, and is moved forward and backward by a rodless cylinder 39. and a third gripping means 3 which is inserted into the cavity 22 of the second gripping means 2 during processing of the steel wire R. inserting the tip of the steel wire R and moving it together with the second gripping means,
When the processing of the steel wire rod R is completed, the movement of the second gripping means 2 is stopped, and at the same time, the processed steel wire R' is released from the second gripping means 2, and the released steel wire R' is transferred to the third gripping means 2. The gripping means 3 grips the second
The gripping means 2 is advanced toward the die 6 side, and the third gripping means 3, which grips the processed steel wire R', is moved back so as to be pulled out from the cavity 22 of the second gripping means 2. A steel wire rod supply/discharge device in a steel wire rod processing apparatus, characterized in that it is configured to discharge the wire rod R'.