Industrial production method of stranded earphone cord

Abstract

The invention relates to an industrial production method of a stranded earphone cord, which is characterized by comprising the following production steps: (1) doubling and extruding; a two-earphone-cord combining wire pasted by a coating layer is produced by an extrusion machine; (2) twisting: the produced combining wire is twisted by a wire twisting machine; and (3) heating setting; the twisted wire is heated and set through a high-temperature area. The earphone cords can not be dispersed from two ends after being twisted, dispersion phenomenon can not happen after segmentation, and the phenomenon of generation of a gap between the double cords at the bending part of the earphone wire can not happen, therefore, remarkable effect is achieved owning to the new process of doubling and extruding; besides, the stress of the stranded wire is eliminated after high-temperature setting, and self-winding phenomenon can not happen, therefore, the production efficiency and finished product ratioare greatly improved and the product performance is greatly improved.

Description

technical field [0001] The invention relates to the production technology of earphone wires, in particular to a production method of twisted earphone wires. Background technique [0002] The usual headphone wires are a pair of "8"-shaped parallel wires bonded to each other. In order to increase the tensile strength of the headphone wires, enhance the beauty of the headphone wires and facilitate storage, some headphone wires use twisted wires, but the general The stranded wire process uses an extruder to extrude two coated wires respectively, then directly stranded, and then cut into sections as required. At this time, there will be an obvious problem, the stranded wire is easy to spread at both ends, and the stranded wire When the wire is bent, the two wires at the bending part will separate to produce a gap, coupled with the stress generated by the stranding of the twisted wire, the wire will automatically twist, and it is often entangled together, which is difficult to str...

AI Technical Summary

Problems solved by technology

[0002] The usual headphone wires are a pair of "8"-shaped parallel wires bonded to each other. In order to increase the tensile strength of the headphone wires, enhance the beauty of the headphone wires and facilitate storage, some headphone wires use twisted wires, but the general The stranded wire process uses an extruder to extrude two coated wires respectively, then directly stranded, and then cut into sections as required. At this time, there will be an obvious problem, the stranded wire is easy to spread at both ends, and the stranded wire When the wire is bent, the two wires at the bending part will separate to produce a gap, coupled with the stress generated by the stranding of the twisted wire, the wire will automatically twist, and it is often entangled together, which is difficult to straighten out. Finished or semi-finished products need to be handled manually because they are difficult to sort out, which will reduce production efficiency, increase the scrap rate, and also affect the use of products

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