JPS6324780B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for supplying a coating wire to a composite wire manufacturing apparatus comprising a rotating wheel type extruder generally referred to as a conform.

FIG. 1 shows an example of a composite wire manufacturing apparatus constructed with a conventional rotating wheel type extruder. 1 is a coating wire made of, for example, Al rough wire; 2 is a rotary wheel having grooves 10 formed on the peripheral end surface; A stationary shoe block forming a wire transport line; A is an integral part of the stationary shoe block S and is a receiving portion positioned so as to close one end of the transport passage; 3 is a receiving portion for pressing the coating wire 1 into the groove of the rotary wheel 2; 4 is a die provided in the receiving portion A, 5 is a core wire made of, for example, a steel wire, and 6 is a composite wire made of an Al-coated steel wire.

To explain the extrusion operation of such a composite wire manufacturing apparatus, by rotating the rotary wheel 2, the coating wire 1 supplied into the transportation passage is transferred between the wire 1 and the groove 10 of the rotary wheel 2.
The contact friction resistance between the wire rods causes the wire material to be fed deep into the transport passage, and the presence of the receiving part A increases the pressure of the covering wire material to generate extrusion pressure. This is an operation of plastically deforming the wire 1 and extruding it for coating. This extrusion is characterized by the fact that it uses friction and can be completely continuously extruded.

The problem here is that when supplying the covering wire 1 to a predetermined part of the rotating wheel 2, the straightness of the covering wire 1 derived from a coil-shaped material is generally not sufficient, and there are extreme cases in some places. If there are undulations or bends, the covering wire 1 will not be smoothly fed into the groove 10 of the rotary wheel 2 or into the transportation passage formed between the groove 10 of the rotary wheel 2 and the fixed shroud S. As shown in the figure, debris 7 of the sheathing wire 1 accumulates at the inlet of the sheathing wire 1 of the rotating wheel 2, and as a result, continuous supply of the sheathing wire 1 becomes impossible and the composite wire 6 as a product becomes defective. becomes. If such a condition is not detected and repaired early, the manufacturing equipment will be damaged and the repair will take time, resulting in a large amount of lost time.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a method for stably supplying a coating wire in a composite wire manufacturing apparatus having a rotating wheel type extruder.

That is, the gist of the present invention is to provide a method for supplying a covering wire in a composite wire manufacturing apparatus having a rotating wheel type extruder, in which a guide for supplying the covering wire is provided in front of a rotating wheel of the composite wire manufacturing apparatus. A roll is provided, and the coating wire is supplied to a predetermined portion of the rotating wheel via the guide roll, and the position of the guide roll is movably adjusted to keep the tension of the coating wire constant during supply. The problem lies in the method of supplying the covering wire.

Next, an embodiment of the method for supplying a coated wire according to the present invention will be described with reference to FIG. 2 of the accompanying drawings.

For example, a coating wire 1 made of a roughly drawn Al wire with a diameter of 10 mmφ is straightened by a straightening roll device 8 made of a plurality of small diameter rolls to remove the undulations and bends and straighten it into a straight line, and then a guide roll 9 for supplying the coating wire 1 The wire is fed into the groove 10 at the inlet of the coating wire of the rotating wheel 2, and is forced into the inner part of the transportation passage by the frictional force generated by the rotation of the rotating wheel 2, and after being pressurized to the required extrusion pressure, The plastically deformed wire is extruded through a die 4 and coated on the circumference of a core wire 5 made of a steel wire, thereby producing a composite wire 6 made of an Al-coated steel wire.

At this time, the rotating wheel 2 passes through the guide roll 9.
The coating wire 1 guided to the entrance of the rotating wheel 2 must be reliably supplied into the groove 10 of the entrance of the rotary wheel 2. For this purpose, the covering wire 1 must be bent and
It must be supplied without undulations and in a straight state. Therefore, the covering wire 1
is straightened through a preferably several stage straightening roll arrangement 8 and then guided to guide rolls 9.

However, even in this case, the covering wire 1 is difficult to connect to the guide roll 9 and the rotating wheel 2 due to its rigidity.
There may be slack between the wire rod 1 and the wire rod 1, or the position may be shifted (shifted), but this is often due to fluctuations in the tension of the covering wire 1. If the wire is sagging or uneven in this way, as described above, debris of the covering wire will accumulate at the inlet of the rotating wheel, which may cause the extrusion device to malfunction.

For this reason, the guide roll 9 is designed to be able to move in the left-right and up-down directions in response to fluctuations in the tension of the covering wire 1, for example, as shown by arrows 11 and 12 in FIG. Thereby, the tension of the covering wire 1 is kept constant to some extent between the guide roll 9 and the rotating wheel 2. Therefore, the coating wire 1 is supplied to the rotating wheel 2 in a steady state without slack or deviation.
As a result, the covering wire 1 is attached to the groove 10 of the rotating wheel 2.
The coating wire is continuously and stably supplied without coming off.

The fact that the tension of the sheathing wire 1 can be adjusted by adjusting the position of the guide roll 9 means that the tension can also be adjusted according to the type, thickness, operating speed, etc. of the sheathing wire 1. The range is very wide and the effectiveness is great.

As is clear from the above description, the method of the present invention has an industrially excellent effect in that it can stably supply coating wire to the rotating wheel of a composite wire manufacturing apparatus configured with a rotating wheel type extruder. has.

[Brief explanation of the drawing]

Figure 1 is a partial cross-sectional view of a conventional composite wire manufacturing device.
FIG. 2 is a partial sectional view of a composite wire manufacturing apparatus according to an embodiment of the present invention. 1: Coating wire, 2: Rotating wheel, 3: Coining roll, 4: Die, 5: Core wire, 6: Composite wire, 7: Accumulating, 8: Straightening roll device, 9: Guide roll, 10: Groove, 11, 12: Movement direction, S:
Fixed shoe block, A: Receiving part.

Claims (1)

[Claims] 1. In a method for supplying a covering wire in a composite wire manufacturing apparatus configured with a rotating wheel type extruder, a guide roll for supplying a covering wire is provided in front of a rotating wheel of the composite wire manufacturing apparatus, and the guide roll A method for supplying a covering wire, which comprises supplying the covering wire to a predetermined portion of a rotary wheel via the rotating wheel, and movably adjusting the position of a guide roll to maintain a constant tension during supply of the covering wire.