JP2527765B2 - Wire rod laying equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a wire laying apparatus for coiling a wire. INDUSTRIAL APPLICATION This invention can be utilized for the laying apparatus which bends the wire rod which consists of general steel, stainless steel, special steel, etc. in a coil shape.

[Prior Art] Conventionally, a wire laying device has been provided.
The wire rod laying device is formed by bending a continuous pipe into a generally conical slope of a generally conical such that it extends from the apex of the cone to the bottom edge of the cone. Then, while rotating the continuous pipe at high speed around the axis of the cone, introduce the wire rod from the inlet of the continuous pipe,
The wire W led out from the outlet of the continuous pipe is continuously bent into a coil shape. However, since the wire W is severely rubbed by the inner peripheral wall of the continuous pipe, there is a problem that the surface of the wire W is seized and scratched.

In addition, as a special laying device, Japanese Patent Laid-Open No. 58-31864
There is one disclosed in the official gazette. This wire rod laying device has an imaginary substantially conical shape 10 as shown in FIGS. 11 and 12.
By arranging the straight short tubular bodies 106 at intervals from the vertex 105b of the cone 105 to the bottom edge portion 105c of the virtual cone 105 with a slight angle, the angle is gradually connected to the substantially conical slope surface 105a. ,It is configured. At the tip of each short cylinder 106, as shown in FIG. 12, rotatable guide rollers 107, 108, 10 are provided.
9 are arranged in three directions.

Then, the wire rod W is conveyed by a pinch roller or the like, the wire rod W is passed through a wire rod guide 110 arranged in front of the wire rod laying device, the wire rod W is inserted into each short cylinder 106, and the guide rollers 107, 108, 109 are provided. To reduce the sliding resistance, and further to rotate the wire laying device at high speed around the axis of the virtual cone 105, whereby the rear short tube 10
The wire W led out from 6 is continuously bent in a coil shape.

By the way, in the wire rod laying apparatus described above, the straight short tube bodies 106 are arranged at predetermined intervals and the angles thereof are slightly shifted to ensure the curvature of the wire rod laying apparatus as a whole. Therefore, since the wire rod W slides through the straight short tube body 106, the wire rod W is rubbed violently by the inner peripheral wall of the short tube body 106, so that the surface of the wire rod W is seized and scratched. is there. In particular, when the wire W is passed at a high speed of about 100 m / sec, the problems of seizure and scratches on the surface of the wire W are large. Further, when the wire W passes through the short cylinder 106 immediately after being hot worked to have a predetermined diameter, the wire W has heat, so that seizure occurs between the wire W and the short cylinder 106. Is likely to occur.

[Problems to be Solved by the Invention] The present invention has been made in view of the above problems,
An object of the present invention is to provide a wire laying device capable of reducing seizure and scratches on the wire.

[Means for Solving Problems] A wire rod laying apparatus according to the present invention uses a wire rod laying head pipe that extends continuously, and inserts an annular member having lubricity inside the wire rod laying head pipe. It is characterized by the point.

That is, the wire rod laying apparatus according to the present invention includes a base,
In such a manner that the wire is introduced into the apex of the cone from the apex of the cone to the bottom edge of the cone, and the wire is introduced into the apex of the cone. A wire rod laying head pipe, which is held on the base rotatably around the axis of the cone and forms a guide hole that connects the inlet and outlet, and the wire rod head is rotated around the axis of the cone. In the wire rod laying device including a drive unit, the wire rod laying head pipe is held in series with at least a part of the pipe body that is continuous between the inlet and the outlet, and at least the inner wall surface. Is composed of at least one annular member having lubricity.

The pedestal holds the wire laying head pipe rotatably.

The wire rod laying head pipe is a long tube through which the wire rod passes, and is continuous from the apex of the virtual cone to the bottom edge of the virtual cone in such a manner as to form a substantially conical slope of the virtual cone. The wire rod laying head pipe has an inlet at which the wire rod is introduced at the apex of the virtual cone, and a lead-out port at which the wire rod is led out at the bottom edge of the virtual cone, and connects the inlet port and the outlet port. It has a guide hole.

The wire laying head pipe includes a long pipe body continuously extending from the inlet to the outlet, and an annular member having at least an inner peripheral wall surface held in series in at least a part of the pipe body and having lubricity. It is composed of. The pipe body is usually formed of a round pipe. The annular member is inserted in the pipe body and is usually a pipe having a relatively long axial length or a ring having a short axial length. When the annular member has a ring shape, the annular member can be inserted into the pipe body even when the pipe body has a high degree of bending. The inner diameter and length of the annular member can be appropriately set according to the curvature of the pipe body and the length of the pipe body, but generally, the inner diameter can be about 25 to 30 mm and the length can be about 25 to 35 mm. . The thickness of the annular member can be appropriately set depending on the magnitude of the applied impact, but it can be generally about 3 to 5 mm. The annular member can be formed by using a solid lubricant such as carbon, molybdenum disulfide, boron fluoride, fluororesin, glass or ceramics as a base material. In this case, a base material made of a solid lubricant or the like can be bonded with a binder. The solid lubricant may be compounded with a reinforcing fiber such as carbon fiber. This is advantageous for ensuring the impact resistance of the annular member. Alumina and silicon nitride can be used as the ceramics. When the annular member is formed of a material other than a solid lubricant, such as ceramics or metal, the annular member has a solid inner surface such as carbon, molybdenum disulfide, graphite fluoride, boron nitride, or fluororesin. It is also possible to coat a solid lubricating layer and a solid lubricating film containing a lubricant as a main component. The annular member can also be made of gray cast iron or spheroidal graphite cast iron. In this case, the graphite exfoliated from the surface of the cast iron ensures lubricity.
Further, the annular member may be provided with a lubricant supply hole opening on the inner peripheral wall surface thereof, the solid lubricant or the liquid lubricant may be supplied to the lubricant supply hole, and the lubricant may be discharged from the opening. .

On the inlet side of each annular member, it is desirable to form a tapered guide portion whose inner diameter increases toward the opening end so as to guide the tip of the wire. If the guide portion is formed in this manner, the tip portion of the wire rod is guided by the guide portion, which is advantageous for allowing the wire rod to pass through the inner peripheral wall surface of the annular member.

By the way, in the wire rod laying apparatus according to the present invention, the annular member can be inserted over the entire length of the pipe body of the wire rod laying head pipe.

In addition, as described above, the wire rod laying head pipe is curved and continuous from the apex of the virtual cone to the bottom edge of the virtual cone on the substantially conical slope of the virtual cone, as described above. When the wire rod passes through the guide hole of the inward head pipe, a portion having a large sliding degree and a portion having a small sliding degree are generated. Therefore, the annular member may be held only in a portion of the pipe main body of the wire rod laying head pipe that has a large sliding degree with the wire rod.

A known drive unit can be adopted as the drive unit, and for example, an electric motor, a hydraulic motor or the like can be adopted. Considering that the wire laying head pipe is rotated at a high speed, an electric motor is preferable.

[Operation] In the wire rod laying apparatus according to the present invention, the wire rod laying head pipe is rotated by the drive unit about the axis of the virtual cone. Then, the wire rod is introduced from the inlet while rotating the wire laying head pipe. Then, the wire passes through the guide hole and is bent into a coil shape as in the conventional case.

As described above, when the wire rod passes through the guide hole, the outer surface of the wire rod contacts the inner peripheral wall surface of the annular member. In this way, the outer surface of the wire comes into contact with the inner peripheral wall surface of the annular member having lubricity, so that the sliding resistance between the wire and the wire laying head pipe decreases.

[Embodiment] An embodiment of a wire laying apparatus according to the present invention will be described below with reference to FIGS. 1 to 10. FIG. 1 is a partial cross-sectional side view of the main part, FIG. 2 is a cross-sectional view near the wire rod laying head pipe, FIG. 3 is a cross-sectional view at the inlet side of the wire rod laying head pipe, and FIG. 4 is a wire rod laying. FIG. 5 is a sectional view of the outlet side of the head pipe, and FIG. 5 is an explanatory view showing a wire rod rolling device and the like in addition to the wire rod laying device.

As shown in FIG. 1, in the wire rod laying apparatus 1 according to the present embodiment, the base 2 has a horizontally long frame 3, and frames 4 and 5 connected to the frame 3. In the frames 4 and 5, a cylindrical body 8 oriented in the horizontal direction is rotatably arranged around bearings 6 and 7 about the axis of the cylindrical body 8. Inside the cylindrical body 8, a hollow portion 8a, a hollow portion 8b
Are formed. One end of the cylindrical body 8 widens in a trumpet shape toward the front. A hollow cylindrical body 10 oriented in the horizontal direction is fixed to one end of the expanded cylindrical body 8 with a bolt or the like. The cylindrical body 10 is also rotatable around its axis. A longitudinal shaft 12 is rotatably arranged around a shaft center of the cylindrical portion 3a held by the frame 3 via a bearing 11 and a bush 12a. A gear 13 is held at one end of the shaft 12. Gear on the cylinder 8
14 are held. The gear 13 and the gear 14 mesh with each other. At the other end of the shaft 12, a rotary shaft 15a of a drive motor 15 as a drive unit is arranged. A fin portion 16 for mounting is formed on the cylindrical body 10.

The wire rod laying head pipe 17 has a long shape, and one end thereof is an inlet port 18 through which the wire rod W is introduced, and the other end of the wire rod laying head pipe 17 is an outlet port 19 through which the wire rod W is led out. Has been done. A guide hole through which the wire W passes is provided between the inlet 18 and the outlet 19 of the wire laying head pipe 17.
It is said to be 20. As shown in FIGS. 3, 4, and 10, the carbon ring 60, the carbon ring 61, and the carbon ring 62 as annular members are provided in the metallic pipe body 21 of the wire rod laying head pipe 17. It is inserted continuously in series. The carbon rings 60, 61, 62 are made of carbon. In this embodiment, one carbon ring 60 is inserted into the pipe body 21 on the side of the inlet port 18 and
It is fixed at 60a. A large number of carbon rings 61 are inserted in the pipe body 21. A cap 63 having one carbon ring 62 inserted into the most outlet side 19 of the pipe body 21 and having a wire rod passage port 63a in the outlet port 19 of the pipe body 21.
And the cap 63 is fixed to the pipe body 21 by welding. The carbon ring 60, the carbon ring 61, and the carbon ring 62 are provided with a guide portion 60b, a guide portion 61b, and a guide portion 62b on the introduction port 18 side. The guide portion 60b, the guide portion 61b, and the guide portion 62b enhance the passability of the wire W, and have a tapered shape in which the inner peripheral diameter increases toward the opening end on the introduction port 18 side.

In this embodiment, as shown in FIG. 1, the cylindrical body 8 of the base 2 is
An inlet 18 of the wire rod laying head pipe 17 is held in the holding hole 8b of the hollow portion 8a. The wire rod laying head pipe 17 is inserted into the hole 10a of the tubular body 10, and the outlet 19 side of the wire rod laying head pipe 17 goes around the outer periphery of the tubular body 10. Then, as shown in FIG.
and the spacer 40 into the groove 24a,
The bolt 42 is inserted into the mounting hole of the letter plate 24 and fixed with the bolt 42. This U-shaped plate 24 is attached to the base 2 via other members, although not particularly shown.

As a result, the pipe body 21 of the wire rod laying head pipe 17 has an imaginary conical shape as in the conventional case shown in FIG.
In this manner, the substantially conical slope 23 of 22 extends from the apex of the virtual cone 22 to the bottom edge of the virtual cone 22 in such a manner that the inlet 18 is provided at the apex of the virtual cone 22 and the wire W is provided at the bottom edge of the cone 21. The lead-out port 19 to be led out is located. Here, the wire rod laying head pipe 17 held on the base 2 is rotatable about the axis of the virtual cone 21, that is, about the axes of the cylinders 8 and 10.

Therefore, when the drive motor 15 described above in FIG. 1 rotates, its rotational force is transmitted to the gear 13 via the shaft 12, and the gear 13 rotates in the direction of the arrow B, and therefore the gear 14 rotates and the tubular body 8 And the wire rod laying head pipe 17 rotates in the direction of arrow F.

As shown in FIG. 5, in front of the wire rod laying device 1, a wire rod finishing and rolling device 25, a water cooling zone 26, and a driven roller are provided.
27, pinch roller 28, wire rod guide 29 are arranged,
A cooling conveyor is provided behind the wire laying device 1.
30 are arranged.

The wire rod guide 29 guides the wire rod W so that the wire rod W can be smoothly introduced before being introduced into the wire rod laying apparatus 1. As shown in FIGS. , A lubricating pipe 32 held by screws 33 inside the outer pipe 31. The outer pipe 31 is made of metal. The lubrication pipe 32 is made of carbon.
The lubrication pipe 32 is formed with a guide portion 34 whose inner diameter is gradually increased. A groove 35 for preventing rotation is formed on the inner peripheral wall of the outer pipe 31. The groove 35 may be omitted. A stopper portion 36 is attached to the end portion of the outer pipe 31.

Now, the use of the laying apparatus according to this embodiment will be described. First, the pinch roller 28 pulls a wire rod W having a circular cross section and hot-rolled to a predetermined size by the wire rod finish rolling device 25. Then, the wire W is 800-1 in the water cooling zone 26.
It is cooled to 000 ℃. Further, by driving the pinch roller 28, the wire W is inserted into the wire guide 29 from the guide portion 34 side of the lubrication pipe 32 via the driven roller 27, and is conveyed while being in contact with the inner peripheral wall of the lubrication pipe 32 of the wire guide 29. Further, the wire rod laying apparatus 1 is reached.

Then, the wire W passes from the inlet 18 of the wire laying head pipe 17 through the carbon ring 60, the carbon ring 61, and the carbon ring 62 at a high speed of about 10 m to 110 m per second, and the outlet 19 of the pipe body 21. Is discharged from the outside. At this time, the wire laying head pipe 17 is rotated 230 to 1500 per minute about the axis of the virtual cone 22 by the rotational drive of the drive motor 15.

As a result, the wire rod W fed into the wire rod laying head pipe 17 is continuously bent into a coil shape. The wire W bent into a coil is conveyed to a predetermined place by the cooling conveyor 30.

In this embodiment, since the wire rod W passes through the carbon ring 60, the carbon ring 61, and the carbon ring 62, the sliding resistance of the wire rod W is reduced by the lubricity of the carbon ring 60, the carbon ring 61, and the carbon ring 62. can do. Therefore, the rubbing of the wire W passing through the inside of the pipe body 21 of the wire laying head pipe 17 can be reduced or almost eliminated. Therefore, unlike the conventional case shown in FIG. 11, it is possible to suppress seizure and scratches on the wire W as much as possible.

[Advantages of the Invention] In the wire rod laying apparatus according to the present invention, since the wire rod laying head pipe is formed of the pipe body and the annular member having lubricity, the sliding resistance of the wire rod can be reduced. Therefore, it is possible to suppress seizure and scratches on the wire as much as possible compared to the conventional case.

Further, in the wire rod laying apparatus according to the present invention, since the pipe main body of the wire rod laying head pipe is continuous with a predetermined curvature from the inlet to the outlet, as shown in FIG. The surface of the wire is less likely to be scratched as compared with the prior art shown in FIG. 11 in which 106 is arranged to ensure the curvature as a whole.

[Brief description of drawings]

1 to 10 show an embodiment of the present invention, FIG. 1 is a side view of a main part shown in a partial cross section, FIG. 2 is a cross sectional view in the vicinity of a wire laying head pipe, and FIG. Is a cross-sectional view near the carbon ring held on the wire laying head pipe, FIG. 4 is a cross-sectional view near the carbon ring held on the outlet side of the wire laying head pipe, and FIG. 5 is a wire laying 6 is a side view of the outer pipe of the wire rod guide, FIG. 7 is a plan view near the tip of the outer pipe, and FIG. 8 is a different direction of the outer pipe. FIG. 9 is a side view when viewed from above, and FIG. 9 is a cross-sectional view of a wire rod guide holding a lubricating pipe. FIG. 10 is a plan view of the wire laying head pipe shown in a partial cross section. 11 and 12 show a conventional wire rod laying apparatus, FIG. 11 is a schematic perspective view, and FIG. 12 is a sectional view in the vicinity of a guide roller. In the figure, 1 is a wire rod laying device, 2 is a base, 15 is a drive motor (drive unit), 17 is a wire rod laying head pipe,
18 is an inlet, 19 is an outlet, 20 is a guide hole, 22 is a cone, 23 is a conical slope, 29 is a wire rod guide, 60, 61 and 62 are carbon rings (annular members), and 60b, 61b and 62b are guide parts. Are shown respectively.

Claims (4)

(57) [Claims] 1. A pedestal and an introduction port of the cone, which is continuous from the apex of the cone to the bottom edge of the cone in such a manner as to form a substantially conical slope of the cone, into which a wire is introduced. A guide hole connecting the outlet, the inlet and the outlet is formed at the bottom edge portion,
A wire rod laying device including a wire rod laying head pipe rotatably held on the base about the axis of the cone, and a drive unit for rotating the wire rod laying head pipe around the shaft of the cone. In the wire rod laying head pipe, the pipe main body is continuous between the inlet and the outlet, and is held by at least a part of the pipe main body, and at least one inner peripheral wall surface of which has lubricity. A wire rod laying device comprising: a plurality of annular members. 2. The wire rod according to claim 1, wherein each annular member has a tapered guide portion whose inner diameter increases toward the opening end on the inlet side in order to guide the tip of the wire rod. Laying device. 3. Each of the annular members has carbon, molybdenum disulfide, boron fluoride, fluororesin, on at least the inner wall surface thereof.
The wire rod laying apparatus according to claim 1, further comprising a lubricating layer containing a solid lubricant such as ceramics as a main component. 4. The wire rod laying apparatus according to claim 1, wherein the annular member is a pipe or a ring.