JP2005297035A - Wire feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire rod discharge apparatus which smoothly discharges a wire rod free from flaw or Kink without causing unpleasant noise such as impact sound. <P>SOLUTION: A vertical annular frame 2 in which the wire rod 22 passes through a hollow 2A is set up in a place close to the wire rod feeding section 6 of the wire rod discharge line. A vertical annular rotator 3 in which the wire rod similarly passes through a hollow 3A is set up on the counter-wire-drawing-machine side of the vertical annular frame 2 and is free to rotate at right angles to the direction of the wire rod discharge line. Both the frame 2 and the rotator 3 are respectively oriented at right angles to the direction of the wire rod discharge line. A guide roller 5 is supported so as to be free to sway in a circular arc locus area, on the counter-wire-drawing-machine side tip 4A of a supporting arm 4 placed on the counter-wire-drawing-machine side of the vertical annular rotator 3 and along the direction of the wire rod discharge line. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wire feeding device for feeding a wire coil with a single wire.

A conventional wire rod feed line comprising a wire rod feeder 51 that feeds a wire coil 53 from a tip of upper and lower arms 51A and 51B of a wire rod feeder (supply stand) 51 to a single wire rod 54, and a lower wire drawing machine 52. A schematic diagram of this is shown in FIG. FIG. 7 is a perspective view in which the wire 54 is fed from the wire supply unit 51 side.
The wire coil 53 is suspended from the upper and lower arms 6A and 6B of the wire rod supply unit 51 with its own weight on the fixed upper arm 51A. The tip of the lower arm 51B of the wire rod supply unit 51 is movable up and down with the base of the lower arm 51B as a base point, and moves up and down as the wire rod 54 is fed out. And the wire 54 of the wire supply part 51 is pulled | pulled out one by one by the force of the wire drawing machine 52 which pulls out the wire 54 through the die | dye in the die box 55. As shown in FIG. In FIG. 6, it is drawn rightward toward the drawing, and in FIG.

In such a case, there is provided a method for removing the twist by feeding out the wire coil so as to give a twist that cancels the twist generated in the wound wire coil. A wire supply unit that suspends the wire coil in a state of being placed horizontally, a pinch roll device that feeds the wire to a single wire, and the like are provided. (For example, refer to Patent Document 1).
Also, the wire drawing failure detection device is coaxial with the center line of the die hole near the entrance of the first die box of the wire drawing machine in the wire drawing line between the wire supply unit and the wire drawing machine. Some conductive metal rings are connected to a failure detection power source (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 11-244938 (page 6, FIG. 1) Japanese Patent No. 3217692 (page 4, FIG. 1)

However, in the conventional one shown in FIG. 6 (FIG. 7) and Patent Document 1, the wire rods drawn from the wire coils suspended on the upper and lower arms of the wire rod supply unit collide with each other, or many wire rod coils are formed at once. There were drawbacks such as popping out. Collision sounds in which the drawn wires collide with each other or the wires collide with the wire supply unit are undesirable noises in the workplace.
In addition, the resistance against unwinding that unwinds the wire coil, that is, the frictional force between the weight of the wire coil and the upper and lower arms, or the wire retainer provided on the upper portion of the wire coil and the upper arm, and the wire coil is a single wire Due to the fluctuation and localization of resistance, such as the resistance of the wire itself against the transformation of the shape of the wire, wrinkles may occur in the drawn-out wire, or a Kink (entangled) location may occur in the wire.

  Therefore, in view of the above problems, the present invention provides a wire feeding device that smoothly feeds a wire that does not generate unpleasant noise such as a collision sound and has no wrinkles or kinks.

The technical means of the present invention for solving this technical problem is a wire rod comprising a wire rod feeding unit that feeds a wire coil from each tip of upper and lower arms of a wire rod feeding unit with a single wire rod, and a wire drawing machine on the lower side thereof. In the payout line, the wire rod is inserted so as to unwind the wire rod coil, and passes through the upper end portion of the upper arm of the wire rod supply portion and has an arc trajectory surface centering on the lower end portion of the upper arm. A guide roller supported so as to freely swing is disposed on a ring-shaped vertical rotating body that is rotated by a wire fed by a wire drawing machine.
Since the wire coil is unwound as a single wire, the extra frictional force that generates wrinkles between the wire coil and the upper and lower arms does not occur, and the wire coil is shaped into a single wire. There is little resistance of the wire itself to the transformation of the wire, and no wrinkles or kinks are generated in the wire.

  Further, the technical means of the present invention includes a ring-shaped vertical frame through which the wire passes through the cavity at a location near the wire rod supply part in the wire feeding line, and an anti-drawer side of the ring-shaped vertical frame. And a ring-shaped vertical rotating body that passes through the cavity and is rotatable at right angles to the wire feed-out line direction, respectively, and is erected at right angles to the wire feed-out line direction. The guide roller is supported at the tip of the anti-drawing machine side of the support arm provided along the wire feed line direction on the side of the anti-drawing machine so as to freely swing on the arc locus surface. It is in.

Further, the technical means of the present invention is that a counterweight is provided on the rotating body so as to face the guide roller supported by the support arm of the ring-shaped vertical rotating body and sandwich the rotation center of the rotating body. It is in.
The technical means of the present invention resides in that the support arm that supports the guide roller and the counterweight are connected by a reinforcing body.
Further, a reverse rotation preventing one-way clutch is provided on a roller pressed against the outer peripheral side surface of the rotating portion of the ring-shaped vertical rotating body.

According to the wire rod feeding device of the present invention, the rotating portion of the ring-shaped rotator rotates by the force pulling the wire rod to feed an appropriate amount of wire rod, so that troubles such as a large number of wire rods popping out and tangling do not occur.
Since the guide roller unwinds the wire rod and the wire rod popped out vigorously collided with the wire rod supply unit and the wire rods to generate a large noise, such a large noise disappeared.
In the conventional wire feeding by the wire feeding part, the wire rod is pushed down so that the wire rod is not drawn too much by the lower arm etc. of the wire feeding part, so when the wire is fed out, it will rub against the resistance strongly. It was a cause of wrinkles of the wire. However, in the wire feeding device of the present invention, the guide roller rotates and unwinds the wire coil so that there is no portion where the wire or the like rubs strongly, the wire does not wrinkle, and the wire has Kink (entanglement). ) There is no point.

Furthermore, since the wire feeding device of the present invention does not require a motor drive, special electrical wiring is not required, and electrical control such as synchronization with a wire processing apparatus such as a wire drawing machine is not required.
In addition, since the moving body such as a wheel is provided on the bottom of the ring-shaped vertical frame, unexpected troubles such as a wire tangled around the guide roller occur, and the ring-shaped vertical frame moves even in the case of unmanned operation. Then, a limit switch provided in the wire feeding line can be hit to stop the feeding of the wire.
In addition, the wire supply line such as the existing wire supply unit can be used as it is, and there is no need for the special arrangement change of the production machine such as the wire supply unit and the wire drawing machine.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a wire feeding device 1 according to the present invention, in which the wire feeding device 1 of the present invention is provided on a ring-shaped vertical frame 2 and a ring-shaped vertical frame 2. It is mainly composed of a ring-shaped vertical rotating body 3.
The wire rod feeding device 1 is provided between wire rod feeding lines including a wire rod feeding unit 6 and a lower wire drawing machine (including a die box before the wire drawing machine (not shown)). The state of the wire feed line is the same as that shown in FIG. 6 described in the above [Background Art]. 1 is slightly different from that of FIG. 6 (FIG. 7), but the shape of the ends of the upper and lower arms 6 A and 6 B shown in FIG. 1 is different. Even FIG. 6 (FIG. 7) is effective.

As shown in the side view of FIG. 2 and the front view of FIG. 3 (however, the center is large as shown in the schematic view from the wire supply unit 6 side, that is, the anti-drawing machine side). It consists of a so-called donut-shaped ring-shaped portion 2B that forms the cavity 2A, and a pedestal portion 2C that supports the ring-shaped portion 2B. In addition, the wire coil 21 and the wire 22 of FIG. 2 are shown with the broken line. Moreover, the wire 22 is not shown in FIG.
The ring-shaped vertical mount 2 is erected at right angles to a wire feed line connecting the wire supply unit 6 and the lower wire drawing machine, and in a vertical direction. The wire 22 drawn out in the cavity 2A passes as shown by an arrow toward the wire drawing machine side. Further, a bearing 2D is provided along the ring-shaped portion 2B on the side opposite to the wire drawing machine of the ring-shaped portion 2B, that is, on the wire supply portion 6 side.

The ring-shaped vertical rotating body 3 includes a rotating portion 3B, a guide roller support arm 4 and a guide roller 5. Similarly to the ring-shaped vertical mount 2, the ring-shaped vertical rotating body 3 is also erected perpendicularly to the wire feed line and in the vertical direction. Further, the wire 22 fed out in the cavity 3A of the ring-shaped vertical rotating body 3 passes toward the wire drawing machine side.
As shown in the side view of FIG. 2 and the front view of FIG. 3, the rotating portion 3B has a so-called donut shape having a large cavity 3A at the center and engages with the bearing 2D of the ring-shaped vertical frame 2 In addition, it can be vertically rotated and swiveled along the ring-shaped portion 2B of the ring-shaped vertical mount 2 vertically. The contour on the outer peripheral side 3E of the rotating part 3B is also a smooth circle having the same rotation center as that of the rotating part B.

Since the rotating part 3B is engaged with the bearing part 2D provided in the ring-shaped part 2B, the rotating part 3B has little resistance to rotation and turning, and rotates and turns smoothly.
The support arm 4 supporting the guide roller 5 is provided on the side of the ring-shaped vertical rotating body 3 on the side opposite to the wire drawing machine and along the wire feed line direction.
As shown in FIG. 4 in an enlarged perspective view, the guide roller 5 is supported by the tip 4A of the support arm 4 on the side opposite to the wire drawing machine. The guide roller 5 has a cross beam shape in which a flat roller 5A and a vertical roller 5B are provided close to each other.

As shown in FIGS. 1 to 4, the flat roller 5 </ b> A is provided with a deep groove 5 </ b> C, and mainly regulates the vertical movement of the drawn wire 22. The vertical roller 5B has no groove, and also mainly regulates horizontal movement.
The wire 22 inserted through the guide roller 5 is drawn out so as to unwind the wire coil. Of course, the flat roller 5A and the vertical roller 5B of the guide roller 4 are combined so that the wire 22 does not fall off from the guide roller 5.
The guide roller 5 is inserted through the wire rod 22 and passes above the tip portion 6C with a distance L (FIG. 5) from the tip portion 6C of the upper arm 6A of the wire rod supply portion 6 and therefore makes contact with the tip portion 6C. There is no. As will be described below, the length of the tip portion 6C corresponds to the length covered by the guide roller 5 from the forefront of the upper arm 6A of the wire rod supply portion 6. Further, the position of the tip portion 6C is fixed.

  The guide roller 5 is provided on the support arm 4 (the rotating portion 3B of the ring-shaped vertical rotating body 3) so as to freely swing on an arc locus surface 5E having a center 5D below the tip portion 6C of the upper arm 6A. .) Is supported by the tip 4A. FIG. 5 schematically shows the relationship between the center 5D and the arc locus surface 5E. FIG. 5 schematically shows a vertical cross section that connects both the guide roller 5 and the distal end portion 6C (of the upper arm 6A of the wire rod supply portion 6). Further, the swinging direction of the guide roller 5 (the counterclockwise direction when the following one-way clutch 7 for preventing reverse rotation is provided) is shown at the top of the guide roller 5.

The center 5D and the arc locus surface 5E are determined by the rotation of the rotating part 3B in the ring-shaped vertical rotating body 3 on which the guide roller 5 is supported and the position of the tip part 6C of the upper arm 6A of the wire rod supply part 6.
For the support of the guide roller 5, the support angle and position can be freely changed by using screwing or the like. However, the guide roller 5 passes above the tip 6C of the upper arm 6A of the wire rod supply unit 6, and the guide roller 5 covers the tip 6C of the upper arm 6A from above.

Since the guide roller 5 passes above the distal end portion 6C of the upper arm 6A of the wire rod supply unit 6, the wire rod 22 does not fall off from the forefront of the upper arm 6A of the wire rod supply unit 6. When the dropping of the wire 22 occurs, noise such as a collision sound between the wires, the wire and the wire supply device, or wrinkles or kinks in the wire may occur, and the wire may sometimes break. It is impossible to feed the wire coil smoothly so as to unwind it.
By providing the wire feeding device 1 of the present invention in the wire feeding line between the wire feeding unit 6 and the lower wire drawing machine, as described in [Background Art], the lower wire drawing machine. When the wire 22 is pulled (to the lower side) by the force of pulling out the wire 22, the rotating portion 3 </ b> B of the ring-shaped vertical rotating body 3 rotates.

The rotating portion 3B rotates only when the wire 22 is pulled as described above, and is not rotated by a power source such as a motor.
The rotating portion 3B having extremely low rotational resistance rotates only when the wire 22 is pulled and tension is generated in the wire 22, and stops rotating when the wire 22 is fed out to some extent and the tension becomes weak. That is, the rotation of the rotating unit 3B is self-controlled so as to be automatically adjusted according to the feeding of the wire 22.
On the contrary, since the wire 22 entering the wire feeding device 1 of the present invention is also drawn only when the rotating part 3B is rotating, the wire 22 is not drawn more than necessary, and the wire 22 is smoothly fed. . In order to be able to rotate the rotating part 3B, a thick wire having a diameter of 9 mm or more is effective, but is not limited thereto.

Moreover, since the guide roller 4 rotates and unwinds the wire rod 22 so as to unwind the wire rod 22 along the outer periphery of the wire rod coil 21, the wire rods 22 collide with each other without causing unpleasant noise. There is no generation of noise such as a collision sound between the wires 22 or between the wires 22 and the wire supply device 6. Specifically, the noise during operation recorded 90 db, and the conventional noise level could be greatly reduced. Note that this 90 db is a result of picking up the sound of the surrounding machine, and is considered to be a lower value when there is no sound (noise) in the surroundings.
In order to improve the balance of rotation of the rotating portion 3B of the ring-shaped vertical rotating body 3, a counterweight 3C is provided on the rotating portion 3B so as to face the guide roller 5 and sandwich the rotation center of the rotating portion 3B. The counterweight 3C may be in any form, but may be in a block form in which the weight can be adjusted as shown in FIG.

Further, in order to reinforce the rotating portion 3B of the wire feeding device 1, mainly the ring-shaped vertical rotating body 3, the guide roller 5 and the counterweight 3C are connected by an iron pipe as a reinforcing body 3D. This reinforcing body 3D crosses the cavity 3A of the rotating part 3B in the ring-shaped vertical rotating body 3 in the diameter direction.
The reinforcement is to maintain the ring shape of the ring-shaped vertical rotating body 3, mainly the rotating portion 3B, and is useful for smooth rotation of the rotating portion 3B. However, the reinforcing body 3D does not interfere with the passage of the wire 22 passing through the cavity 3A. This is because the reinforcing body 3D is provided on the side opposite to the guide roller 5 of the support arm 4 that supports the guide roller 5 through which the wire 22 is inserted. In other words, the guide roller 5 is not in contact with the wire 22 and the reinforcing body. Work like no.

Further, a reverse rotation preventing one-way clutch 7 is provided on the roller 8 along the outer peripheral side 3E of the rotating portion 3B of the ring-shaped vertical rotating body 3. The roller 8 provided with the one-way clutch 7 is attached to the outer peripheral side 3E through the cylinder 9 or the like from the gantry portion 2C of the ring-shaped vertical gantry 2. In addition to the roller 8, a non-slip brake 10 (FIGS. 1 and 3) is provided in contact with the outer peripheral side 3 </ b> E similarly, but it is not necessary to strictly act on the anti-slip, and the rotating part 3 </ b> B rotates smoothly. Just do it.
This one-way clutch 7 may reversely rotate thereafter when the rotating portion 3B of the ring-shaped vertical rotating body 3 rotates vigorously. Since a trouble occurs in the feeding of the wire rod such as being entangled with the support arm 4, it is attached to prevent reverse rotation. An arrow indicates that the roller 8 is rotating in one direction.

Further, as an auxiliary device, the ring-shaped vertical mount 2 (and the ring-shaped vertical rotating body 3) moves along the wire feed line direction between the wire supply unit 6 and the lower wire drawing machine ( A movable body (not shown) is provided on the bottom surface of the gantry portion 2C of the ring-shaped vertical gantry 2 so that it can slide. This moving body is a wheel.
This is because troubles such as the wire 22 being entangled with the guide roller 4 occur, and when the ring-shaped vertical gantry 2 is pulled toward the wire drawing machine (not shown) through the tangled wire 22, the ring-shaped vertical gantry 2 (and the ring-shaped vertical rotating body 3) as a whole moves (slides), hits a limit switch for stopping the wire drawing machine provided along the wire feed line, and stops the wire drawing machine etc. . By stopping, it is possible to prevent troubles such as the pulled ring-shaped vertical mount 2 or the like colliding with a die box or the like provided adjacent to the front of the wire drawing machine.

  The embodiment of the present invention is not limited to the above. For example, the bearing 2D of the ring-shaped vertical mount 2 may be a plurality of wheels. Further, the inner surface of the cavities 2A and 3A of the ring-shaped vertical frame 2 and the ring-shaped vertical rotating body 3 or the reinforcing body 3D and the wire 22 passing therethrough are not touched and the wire 22 is not rubbed. Auxiliary rollers (not shown) or the like may be separately provided on the inner surfaces of the auxiliary rollers, and the direction in which the wire is drawn out can be specified by inserting the wire into the auxiliary roller. However, since the wire diameter of the wire coil 21 is reduced while being drawn out, the occurrence of the above-described situation in which the wire material is rubbed hardly occurs.

  The wire feeding device of the present invention can be used to change the storage form by sequentially drawing long materials such as coiled stranded wires in addition to the drawing of hard steel wire, or to sequentially draw and align them to a standard length. Is possible.

It is a perspective view of a wire feeding device or the like. It is a side schematic diagram of a wire rod feeding device or the like. It is a front schematic diagram of a wire rod feeding device. It is an expansion perspective view near a guide roller. It is a figure explaining the relationship between a guide roller and a wire supply part upper arm. It is a schematic diagram of a wire feeding line. (Conventional) It is a perspective view from a wire supply part. (Conventional)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wire rod delivery apparatus 2 Ring-shaped vertical mount 2B Ring-shaped part 2D Bearing 3 Ring-shaped vertical rotating body 3B Rotating part 3C Counterweight 3D Reinforcement body 4 Support arm 5 Guide roller 6 Wire rod supply part 6A Upper arm 6C Tip part 7 One-way clutch 21 Wire material coil 22 Wire material

Claims (5)

  In a wire feed line consisting of a wire rod feeding unit and a wire drawing machine on the lower side of the wire rod feeding unit from the tips of the upper and lower arms of the wire rod feeding unit with a single wire rod, the wire rod is inserted so as to unwind the wire rod coil. Therefore, a guide roller supported so as to freely swing on an arc trajectory surface centering on the lower end of the upper arm and passing through the upper end of the upper arm of the wire supply portion is provided in the wire drawing machine. A wire feeding device characterized in that the wire feeding device is arranged on a ring-shaped vertical rotating body rotated by a wire fed by force.   A ring-shaped vertical frame through which the wire passes through the cavity at a location close to the wire supply part in the wire feed line, and the wire-drawing machine side of the ring-shaped vertical frame that also passes through the cavity. And a ring-shaped vertical rotating body that is freely rotatable at right angles to the wire feed line direction, and each of the ring-shaped vertical rotating bodies is set up at right angles to the wire feed line direction, and the wire rod is on the side opposite to the wire drawing machine. The wire rod according to claim 1, wherein the guide roller is supported at the tip of the support arm provided along the feed line direction so as to freely swing on the arc locus surface. Feeding device.   3. The counterweight according to claim 2, wherein a counterweight is provided on the rotating body so as to be opposed to a guide roller supported by a support arm of the ring-shaped vertical rotating body so as to sandwich the rotation center of the rotating body. Wire feeding device.   4. The wire feeding device according to claim 3, wherein a support arm that supports the guide roller and a counterweight are connected by a reinforcing body.   5. The wire feeding device according to claim 2, wherein a reverse-rotation preventing one-way clutch is provided on a roller pressed against the outer peripheral side of the rotating portion of the ring-shaped vertical rotating body. apparatus.

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