Metal tube for earphone microphone and its making method

Abstract

The invention discloses a flexible metallic conduit for the microphone of an earphone which is used by matching a piece of metallic wire; a piece of high-carbon steel wire or stainless steel wire is coated outside the metallic wire, while a layer of steel wire or copper wire is again coated outside the high-carbon steel wire or stainless wire. The method for manufacturing the flexible conduit is as follows: firstly, the steel wire and iron wire are fed synchronously and formed by adopting a bilateral wire roller, and a wire pressing roller is installed at the wire roller part where the iron wire is fed, and the iron wire is pressed into a triangle; secondly, the steel wire is formed on the axis by a bended guide board of the mould, and meanwhile by using a pressing-in mould, the iron wire is pressed into the spring formed by the steel wire so as to form the flexible conduit; thirdly, when the forming length of the flexible conduit reaches the set length, an infrared sensor is triggered, and the flexible conduit is cut into a required length; the flexible conduct is convenient to use with good toughness; the technology can forms the flexible conduit once with precise control tolerance and flexible conduit cutting length; flexible conduits with outer diameter more than 2. 3mm can be manufactured via the new technology and device for the first time, which fills a gap at home and abroad.

Description

technical field [0001] The invention relates to an earphone accessory, in particular to a metal hose for an earphone microphone and a manufacturing method thereof. Background technique [0002] At present, most of the existing ear wires for earphones and microphones have a structure of putting metal wires into a PVC plastic shell. The ear wires of this structure have low compressive strength, are easily deformed and broken after repeated use, and are relatively hard. , poor elasticity, inconvenient to use. [0003] The process of making this kind of ear wire is to separately form the inner ring and the outer ring, and the efficiency is slow. In addition, the tolerance of the products produced by the old process is large, and it cannot be cut automatically. It needs to be cut manually after the tube is formed; Furthermore, the old process can only produce hoses above 5mm. Contents of the invention [0004] The object of the present invention is to provide a metal hose for...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the existing ear wires for earphones and microphones have a structure of putting metal wires into a PVC plastic shell. The ear wires of this structure have low compressive strength, are easily deformed and broken after repeated use, and are relatively hard. , poor elasticity, inconvenient to use

[0003] The process of making this kind of ear wire is to separately form the inner ring and the outer ring, and the efficiency is slow. In addition, the tolerance of the products produced by the old process is large, and it cannot be cut automatically. It needs to be cut manually after the tube is formed; Furthermore, the old process can only produce hoses above 5mm

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