JPH026875B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a strand by twisting a plurality of wires.

FIG. 1 shows a schematic configuration of the main parts of a wire twisting machine used for manufacturing ordinary strands.

In the figure, a shaft 1 extending along the rotation axis
A barrel 12 is fixed to 1 so that it can rotate integrally with the barrel 12, and a plurality of spools 13 each having a wire 14 wound thereon are attached to the barrel 12. The wire 14 pulled out from each spool 13 is passed through a plurality of guides 16 provided on a rotating plate 15 fixed to the shaft 11 and a plurality of guides 18 provided on a rotating plate 17 without being twisted. The wires are guided to the twisted wire section 19. The twisted wire section 19 is equipped with a die having a through hole on the extension line of the rotation axis, and the through hole is provided on the inlet side of the wire 14.
4 is tapered so that it gradually becomes narrower in the direction of withdrawal.

In this type, the wires 14 pulled out from each spool are focused at one point on the rotation axis, and by rotating the barrel 12, the wires 14 are automatically twisted at the focusing point to form a single strand. . 30 is a winding spool.

By the way, in conventional wire twisting machines, the guides 16 and 18 for guiding the wire 14 are realized by simple through holes, so although measures such as rounding the edges have been taken, the guide portion In some cases, wire breakage occurred due to In addition, the stranded wire pitch can be adjusted by changing the crossing angle of the wire with respect to the rotation axis in the stranded portion, and
2 or by changing the rotational speed of the take-up spool 30; however, in the former method, the tension changes as the crossing angle of the wires changes, and especially in the case of large diameter wires, the resistance increases and wire breakage occurs. However, since the latter method requires a precise adjustment mechanism, it is unavoidably complicated and expensive.

In view of the above, an object of the present invention is to provide a wire twisting machine in which the guide portion for guiding the wire is improved to substantially eliminate wire breakage.

Another object of the present invention is to provide a wire stranding machine in which the guide portion has a relatively simple structure and a function for adjusting the strand pitch uniformly.

In the present invention, a guide provided on a rotary plate provided on a shaft between a barrel and a stranded wire portion and guiding the wire is configured with an alignment bearing, and is movable in the radial direction with respect to the rotary plate. It is characterized by what it did.

Examples of the present invention will be described below.

FIGS. 2 and 3 show a front view and a sectional view of the main part of the rotating plate, which is the main part of the present invention.

In the figure, the rotary plate 17 is provided with elongated holes 171 extending in the radial direction at six locations equidistantly spaced in the circumferential direction. is provided so as to be detachable and movable along the elongated hole 171, that is, in the radial direction of the rotary plate 17.

The guide 18 has an elongated hole 171 as shown in FIG.
A flange 18 is provided on one side of the cylindrical body 182 that can be fitted into the cylindrical body 182.
3, and an alignment bearing 184 is configured inside. Further, a threaded portion 185 is formed on the outer periphery of the protruding portion of the cylindrical body 182 from the elongated hole 171, and an annular plate 186 can be screwed into the threaded portion 185. The guide 18 can be fixed by tightening the guide 17.

According to such a guide 18, even if the inclination angle of the wire inserted into the through hole 181 changes, the angle of the alignment bearing 184 changes accordingly.
Unreasonable stress is not applied, and wire breakage can be eliminated regardless of the wire diameter. In addition, the strand pitch can be changed by changing the wire crossing angle in the stranded wire portion, and the wire crossing angle can be arbitrarily changed by adjusting the position of the guide 18 in the radial direction with respect to the rotary plate 17. be able to. That is, by loosening the annular plate 186 slightly, the guide 18 can easily slide along the elongated hole 171, and after positioning it at a predetermined position, the annular plate 186 can be tightened again. In order to facilitate this positioning, the flange 183 side may be made unrotatable, and a scale may be provided on the rotary plate 17 along the elongated hole 171 so that a predetermined portion of the flange 183 can be aligned.

FIG. 4 schematically shows another example of a position adjustment mechanism for the guides 18, in which the positions of all the guides 18 can be adjusted at the same time.

Such a mechanism can be realized by a first bevel gear 20 having a spiral groove 201 on one end surface, a second bevel gear 21 and a rack 24. That is, a bevel gear 20 (only the upper half shown) is rotatably provided on the outer periphery of the shaft 11, and the bevel gear 20
By providing the bevel gear 21 in mesh with the bevel gear 20, the bevel gear 20 can be rotated by the rotation of the bevel gear 21. On the other hand, the guide 18 has an elongated hole 17 that can be slid longitudinally within the elongated hole 171.
Attach the slide plate 23 of the same width as 1 and insert it into the elongated hole 17.
It is movable along 1. Slide plate 2
A rack 24 is provided at the bottom of 3, and this rack 24
By meshing with the spiral groove 201 of the bevel gear 20, the rotation of the bevel gear 20 makes the rack 2
4. The guide 18 can be moved via the slide plate 23. For each guide 18, a moving mechanism using such a slide plate 23 and rack 24 is provided radially in the spiral groove 201 of the bevel gear 20.
As a result, all the guides 18 can be positioned simultaneously by adjusting the rotation of the bevel gear 21. 241
are guide grooves provided on both sides of the rack 24, and are fitted into protrusions 251 provided on the support portion 25 to ensure smooth sliding. Of course, the bevel gears 20 and 21 are fixed by a stopper mechanism (not shown) so that they do not rotate due to the rotation of the shaft 11 after the positioning adjustment is completed.

By providing a guide that also has the function of adjusting the stranded wire pitch as described above, wire breakage that previously occurred 2 to 4 times due to the short distance from the guide 18 to the stranded wire portion 19 can be avoided. I was able to eliminate it completely. Furthermore, it was confirmed that it was possible to twist seven wires with a diameter of 2.0 to 0.4 mm in terms of the processing range of wire diameter and number.

Note that FIG. 1 shows two rotary plates for guiding the wire, and in the embodiment, the explanation has been made by applying the present invention to the rotary plate 17, but it goes without saying that the present invention can also be applied to the rotary plate 15. Further, various structures that allow the guide to move in the radial direction of the rotary plate can be considered, and the structure is not limited to the illustrated structure.

[Brief explanation of drawings]

FIG. 1 shows a schematic structure of the main parts of the wire twisting machine, FIG. The figure shows another example of the guide position adjustment mechanism. In the figure, 12 is a barrel, 15 and 17 are rotating plates,
16 and 18 are guides, 19 is a twisted wire portion, 30 is a take-up spool, and 184 is an alignment bearing.

Claims (1)

[Claims] 1. A plurality of spools wound with wire are attached to a rotating table attached to a shaft extending along the rotation axis, and the wire pulled out from the spools is attached to a rotating plate attached to the shaft. A device for twisting each wire in a twisting section through a plurality of guides, wherein the guide is constituted by an alignment bearing and is movable in the radial direction with respect to the rotary plate. Line machine.