JPS6039448B2 - Stranded wire manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improvement in the method of manufacturing stranded wire, particularly stranded annealed copper wire.

The conventional method for manufacturing stranded wire is divided into three steps as described below.

Wire drawing process Rough drawing → Wire drawing machine → Winding machine (drum winding) (Drum winding) -> Stranding machine -> Winding machine (Drum winding) In the conventional method, the three processes are separated, so the manufacturing equipment becomes large and requires a large installation area, and ~
The drawback was that each step of the process (drum winding) overlapped, resulting in wasted power.

Therefore, the present applicant serialized each process of wire drawing, anchoring, and firing wire, thereby making the entire device 4-shaped, reducing the space for hemming, and reducing the power consumption.
No. 5478 (Japanese Unexamined Patent Publication No. 56-154590) discloses a method in which a plurality of strands are fed out by extrusion molding using an annularly arranged die that rotates together with a rotating body, and the fed strands are twisted together. A method has been proposed in which the delivered strands are twisted together with another strand fed through the axis 0 portion of the rotating body or around this other strand.

However, according to the above method, once the stranded wire size is determined, the groove diameter of the annular groove provided in the rotating body and the cross-sectional area of the raw material (rough wire) to be fed into this groove are determined.
There is a drawback that conditions such as the wire diameter of the raw material, the groove flea of the annular groove, etc., and the constituent parts must be changed for each size of stranded wire.

This invention was made with attention to the above points, and even if the size of the target stranded wire changes, the raw material and other components can be easily changed by simply changing a part of the component (the die or the rotating head). This makes it possible to continuously manufacture stranded wires without making any changes.

That is, the method for manufacturing a stranded wire according to the present invention includes an annular groove formed between an internal rotating body and an external rotating body that rotate in the same direction, and a fixed or rotationally movable groove arranged with respect to the outer circumference of the internal rotating body. The material is continuously fed out using a shoe member that can be used, the fed material is cut into multiple millet wires by a rotating head with a plurality of dies arranged in a ring, and the fed out multiple strands are twisted together. Features.

Furthermore, when twisting a plurality of strands together, the internal rotating body passes another strand from the inguinal part of the shoe member and twists together with this other strand or with this as the center line, thereby creating a composite stranded wire, Any concentric strands can be produced.

This invention will be explained below based on the drawings.

FIG. 1 shows an overall view of a stranded wire manufacturing apparatus for carrying out the method of this invention.

In the figure, 1 is a carrier made of small-diameter Qin wire 2 wrapped in foil, 3
indicates a carrier wound with a thick diameter rough wire 4. The strand 2 is supplied to a strand straightening device 6 comprising a plurality of straightening rolls 5. The rough wire 4 is supplied to a cutting extrusion molding machine 7, and as will be described in detail later, the plurality of strands 8 produced by cutting and extrusion molding are twisted in a twisting holder 9 with the millet wire 2 as a center line. A zero strand wire 10 is formed. After passing through the counter 1, the concentric strand 10 is wound onto a winding drum 13 via a take-up capstan 12. According to this invention, the plurality of wires 8 required for stranding are manufactured all at once by the cutting extrusion molding machine 7, and annealing is also performed at the same time, so that the conventional wire drawing and annealing processes can be integrated and continuous. achieved.

Figures 2 to 4 show the cutting extrusion molding machine 7 and the twisting holster 1.
A detailed view of 9 parts is shown. In the figure, 14 is a cylindrical internal rotating body provided with a plurality of protrusions 15 for preventing slippage in the circumferential direction, and is rotated by a motor (not shown). An external rotating body 16 is provided on the outer periphery of this internal rotating body 14 in the same circular shape,
An annular groove 17 with both ends closed is formed between both rotating bodies. An annular fixing shoe member 18 is arranged facing one open □ end side of the annular groove 17. The green end portion 19 of the shoe member 18 is inclined or curved toward the annular groove 17 side, and a raw material supply V supply port 20 is provided at a position shifted by one pitch between the female end point and the end point, as shown in FIG. It is being Reference numeral 21 denotes a rotating head having a plurality of dies 26 arranged in an annular shape, which rotates in any direction depending on the twisting direction.
rotate in the opposite direction.

The ball body 22 of the rotary head 21 has a shaft hole 23 and is inserted into the internal rotating body 14, and an annular die head 24 that aligns with the annular groove 17 is provided at the end of the ball body 22. . As shown in FIG. 3, the die head 24 has a sawtooth front end surface, and a die 26 is formed on an upright surface 25 facing the direction of rotation.
A passage 2 that passes through the lotus and opens at the rear end surface of the die head 24.
7 have been established. This die 26 is formed into a concave shape or an inverted conical shape. Furthermore, the cutting extrusion molding machine 7 includes:
A plurality of tension adjustment rolls 28 and a twisting plate 29 are provided in front of the rotating head 21, and a twisting die 9 is provided in the twisting holder 9.
' is equipped. Further, the portion from the cutting extrusion molding machine 7 to the twisting holder 9 is subjected to cooling treatment by means not shown to prevent scale (metal oxide, etc.) from forming on each strand 8. When operating the apparatus shown in FIGS. 2 to 4, raw materials (
The rough wire 4) is supplied into the interior from between the fixed shoe member 18 and the external rotating body 16.

The rough drawing line 4 is rotated by the internal and external rotating bodies 14 and 16 due to its frictional force as the internal and external rotating bodies 14 and 16 rotate.
and the fixing shoe member 18 (under compression), and is delivered to the annular groove 17 side. In this case, the external rotating body 16 does not need to be driven, but by driving it, the line strip can be further delivered. This delivered material is subjected to new compressive stress on the vertical surface 25 of the rotating head 21, which rotates in the opposite direction to the internal and external rotating bodies 4 and 16, and as a result becomes a semi-molten or nearly semi-molten state, and is cut into a die. Dice 2 according to the caliber of 26
6 is cut and sent out.Thus, the strand 8 having a desired diameter is formed and comes out from the passage 27. That is, in this cutting extrusion, the original large-diameter rough drawn wire 4 is subjected to high compression pressure and generates high heat, and is formed into a small depression east wire 8 by the die 26, so that it is not necessary to use the conventional wire drawing and annealing process. are integrated and performed continuously. After these millet wires 8 are maintained at a constant tension by a tension adjustment roll 28 that rotates simultaneously with the rotary head 21, they are passed through the twisting plate 29 together with the center wire (traditional wire 2) supplied separately through the rattan hole 23. After that, it enters the twisting mouth holder 9. In this step, the wires are twisted together in the twisting die 9' to obtain a single layer of concentric strands 10, which is passed through the counter 11 and take-up capstan 12 shown in FIG. 1 and then wound onto the winding drum 13 as a product. FIG. 5 shows an annular groove 17' that is oblique with respect to the inguinal center, and FIG. 6 shows an annular groove 17' that is provided in a direction perpendicular to the axial center.

FIG. 7 shows another example of the rotary head, in which the rotary head 21'
Unlike the case shown in FIG. 2, there is no iron inserted into the internal rotating body 14, but the structure is such that it is positioned opposite from the twisting opening.

Figures 8 and 9 show a shoe member that is rotatable and rotationally movable.

In FIG. 8, the rotating shoe member 30 is connected to the internal rotating body 14.
The rough drawing wire 4 is sequentially sent out to the annular groove 17 while rotating substantially in the same manner as the internal rotating body 14. In this case, the shoe member 3 can only feed out the rough wire 4 of the raw material by about half a pitch (1800), and the remaining half pitch is sent out by a fixed shoe member (not shown). Note that 31 indicates a guide shoe. FIG. 9 shows the feeding of the rough wire 4 by the movable shoe section 32 which is equally divided and rotatably movable. In this case, the rough guide line 4 is equally divided and touches the fixed shoe member 18' while rotating in the same manner as the internal rotating body 14 via the key 33).
1 relative to the internal rotating body 14 by the moving shoe member 32.
It is fed into the annular groove 17 pitch by pitch. In addition, 32'
Reference numeral 34 indicates a shoe holder of the movable member 32, and 34 indicates a fixed guide shoe member. FIG. 10 is a schematic diagram of a multilayer concentric stranded wire manufacturing apparatus.

35, 36 and 37 are cutting and extrusion molding units;
1 to 4, each is equipped with a cutting extrusion molding machine 7 and a twisting holder 9.

In this device, the strands 2 supplied from the carrier 1 are sequentially twisted in the basic unit 35, the intermediate unit 36, and the outer layer unit 37 in the same manner as described above to form a multilayer concentric stranded wire 10'. It is wound onto a winding drum 13 by a stun 12. in this way,
Multilayer concentric strands having the desired layers are formed by combining multiple units in series. The intermediate and outer layer units 36 and 37 are each a combination of two and three basic units 35, respectively. FIG. 11 is a schematic diagram of a hard drawn SB stranded wire manufacturing apparatus. Basic unit 35
The same zero stranded wire 10 obtained by
The wire is drawn down to a small diameter in a continuous wire drawing machine 38 having a wire drawing machine 9 or a die, adjusted to a required twisting pitch by a known puncher-type wire twisting machine 40, and then adjusted to a predetermined wire diameter by a finishing die (not shown). FIG. 12 is a schematic diagram of a composite stranded wire manufacturing apparatus.

In the figure, reference numeral 41 denotes a winding and rotating type twisting machine, which is equipped with a take-up capstan 12 and a winding drum 13 inside. A plurality of basic units 35 are arranged radially in front of this wire twisting machine 41. In the device shown, each D-stranded wire 10 obtained from a plurality of basic units 35 is
The composite stranded wire 42 is formed by the rotation of the stranding machine 41, and is wound up by the take-up capstan 12 and the winding drum 13 in the same manner as described above. FIG. 13 shows the wire twisting machine 41 of FIG. 12 with the take-up capstan 12 and the winding drum 13 separated.

That is, a rotary stranding machine 4 equipped with a take-off capstan 12
3, two winding machines 44 are provided with a synchronous rotation mechanism and paper is combined. In this case, unlike the case shown in FIG. 12, continuous operation is possible by simply replacing the winder 44 without stopping the entire system. The above has explained the production of the same D stranded wire, except for FIGS. 12 and 13.
A plurality of wires obtained by the cutting extrusion molding machine 7 or the basic unit 35 can easily be made into a bunched stranded wire, and can also be applied to the production of various pressure-stripe wires.

Since this invention is as described above, the wire drawing of the secondary
Not only can each step of the stranding and stranding process be continuous, but even if the size of the stranded wire changes, the desired stranded wire can be produced by replacing some of the component parts of the device such as dies or rotating heads. can be manufactured.

[Brief explanation of the drawing]

The drawings show an apparatus for carrying out the method of the present invention; Fig. 1 is an overall view of the stranded wire manufacturing apparatus, Fig. 2 is a vertical sectional view of the cutting extrusion molding machine shown in Fig. 1, and Fig. 3 is an isolated view of the machine. Perspective view of the condition,
FIG. 4 is a perspective view of the roughly assembled state, FIGS. 5 to 9 are explanatory diagrams of other examples of the cutting extrusion molding machine, FIG. 10 is a schematic diagram of a multilayer concentric stranded wire manufacturing apparatus, and FIG. 11 12 is a schematic diagram of an SB stranded wire manufacturing device using bus bar drawing, FIG. 12 is a schematic diagram of a composite stranded wire manufacturing device, and FIG. 13 is a schematic diagram of another composite stranded wire manufacturing device. 7... Cutting extrusion molding machine, 14... Internal rotating body, 16... External rotating body, 17, 17', 17''.
...Annular groove, 18, 18', 30...Shoe section, 21, 21'...Rotating head, 26...
··dice. Fig. 2 Fig. 3 Fig. 4 Fig. l Fig. 5 Fig. 6 Fig. 7 Father 11〆8/9 Sentence Fig. 10 Frequently Fig. 13

Claims (1)

[Claims] 1. An annular groove formed between an internal rotating body and an external rotating body that rotate in the same direction, and a fixed shoe member disposed on the outer periphery of the external rotating body, A stranded wire characterized in that a material is sent out, a plurality of strands are cut and sent out by a rotating head having a plurality of dies arranged in a ring, and the sent out plural strands are twisted together. Production method. 2. The material is continuously removed by an annular groove formed between the internal rotary body and the external rotary body that rotate in the same direction, and a rotationally movable show member disposed on the outer periphery of the internal rotary body. A method for manufacturing stranded wire, which comprises: feeding out the material, cutting a plurality of strands from the material to be fed out using a rotating head having a plurality of dies arranged in a ring, and twisting the plurality of strands that have been fed out.