JPS5841987A - Production of twisted wire - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a stranded wire made by twisting a plurality of child strands, such as a communication cable made by twisting a plurality of pairs of wires. In this method, a plurality of wire rods were twisted together to form a child strand, and the plurality of child strands were then twisted together in a separate process. Therefore, two processes are required to produce the stranded wire, which has the disadvantage of low workability. The object of the present invention is to provide a method for producing a stranded wire that can improve the properties of the twisted wire. The method of the present invention will be described below with reference to the drawings, focusing on the rotation in the opposite direction to give a twist, and using the rotation to give a twist to form a child twist. , FIG. 1 schematically shows the method of the invention, with the counting cradle IOA, 10B---
supports a plurality of supply bobbins 12.12' on its side, and a plurality of sagrai bobbins 12.12 in each cradle.
A plurality of wire rods fed out from the twister 14 are passed through the twister 14. In this case, each cradle IOA, 10B--1 rotates and revolves around the axis X of the twister 14, as shown in FIG. 0 In this way, the wire rods from the supply bobbins 12 and 12' in each cradle are twisted in a predetermined direction (for example, 2 twists) 16 by the rotation of the cradle between each cradle and the twisting cap 14. is formed! The parent strands 16 are twisted together by the revolution of each cradle in the octopus twister 14. It is true by adjusting the number of rotations and revolutions.

Next, we will describe a specific example of the present invention in the case of manufacturing a communication cable.The wire material is an insulated wire made of a copper conductor with a diameter of 0.91!1 ffl and a polyethylene insulation coating with a thickness of 0.125 mm. Two supply bobbins are supported on each of the six cradles of the mold twisting machine, and the material is fed out from these supply bobbins and passed through the twisting nozzle into one by a take-off device.
Pick up at a speed of 2m+/min, rotate the cradle at rotation speed x5o
r-p-ms revolution number: 16 degrees R, P, m Rotates and revolves around its axis 0 By this method, parent-twist communication cables with a twist pitch of 80 mm, in which child twists with a twist pitch of 80 mm are twisted, are manufactured without pitch disturbance. It was done.

In addition, in the method of the present invention, a tubular type twisting machine can be used in addition to the cage type twisting machine. Since stranded wire can be manufactured in one process, there is a practical benefit of significantly improving workability.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram schematically showing the method of the present invention, and FIG. 2 is an explanatory diagram showing the rotation state of one cradle. 10mm, 10B--Cradle, 12, +2'-
-----Supply bobbin-14----Single twist cap, 16
---- Child twist, 18 ---- Single parent twist. ,',,'-7+ Patent Agent Patent Attorney Arata Kikuchi -, [
(2, -

Claims (1)

[Claims] A plurality of supply bobbins are supported on each of the plurality of cradles, and while the plurality of cradles are rotating and revolving around the axis of the twister, a wire is fed out from each sagrai bobbin and passed through the twister, and the wire is drawn out from each of the cradles and passed through the twister. The child due to the rotation of the cradle between from to the twist cap? A method for manufacturing a stranded wire characterized by forming a parent strand that twists child strands by revolving the cradle within the twisting mouthpiece.