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A production process and earphone shell technology, which is applied in the field of earphone manufacturing, can solve the problems of poor product appearance, incapable of one-time molding, and high raw material cost, and achieve the effects of no surface post-processing, simple structure, and low raw material cost
Inactive Publication Date: 2015-07-15
刘天镐
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[0006] The purpose of the present invention is to solve the problems of high cost of raw materials, low precision of finished products, poor product appearance, high manufacturing cost, low production efficiency, many processing procedures and products that cannot be formed at one time in the existing method of producing metal earphone shells.
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[0033] Such as figure 1 As shown, taking the hollow aluminum earphone shell of φ8×15mm as an example, the production process of the aluminum earphone shell described in this embodiment includes the following steps:
[0034] The first step: material saponification treatment, the processed aluminum pellets are sent to the heating tank, so that a layer of saponified material is attached to the surface of the aluminum pellets, which is used for lubrication during the cold extrusion process of the aluminum pellets, It is easy to release the mold. The saponified material here is zinc phosphate, because the surface of the blank treated with zinc phosphide is attached with a fat lubricant or sodium soap film, and this film is not easy to fall off. When extruding this blank, the pressure is relatively high. Small;
[0035] The second step: feeding, using the automatic vibrating plate in the automatic feeding system to send the processed aluminum pellets to the inlet end of the cold ex...
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Abstract
The invention discloses a metal earphone shell production process, which comprises the following steps of: a, preparing a material, i.e., conveying machined metal particle sheets to an inlet end of cold extrusion equipment by using an automatic feeding system; b, performing cold extrusion forming, i.e., dropping the metal particle sheets into an extrusion mould for cold extrusion forming through the automatic feeding system; and c, shaping and demolding, i.e., cutting and shaping the edge of a port part of an earphone shell formed by cold extrusion molding through a convex die of the cold extrusion equipment after the extrusion is finished and demolding. Compared with the prior art, the production process has the advantages of simple structure, convenience in operation, low raw material cost, high finished product accuracy, no surface post-processing, one-time forming, less steps, less waste material, automatic production in the full process, high production efficiency, low energy consumption, low manufacturing cost and the like; and the earphone shell is formed at one time, the dimensional accuracy is high, close fit butting production is adopted during assembly of the earphone finished product, a gluing step in the manufacturing process is saved, the cost can be reduced and the efficiency can be increased, and the production process is an innovation development the earphone production.
Description
technical field [0001] The invention relates to the technical field of earphone manufacturing, in particular to a novel production process of a metal earphone shell. Background technique [0002] There are many types of earphone shells, which can be classified into plastic earphones, ceramic earphones, wooden earphones, metal earphones, etc. according to the material. Most of the existing metal earphone shells are produced in the following three ways: [0003] 1. Automatic lathe processing. When using this method to process metal earphone shells, the raw material must first be a metal round bar, then clamped by a lathe, and then use a lathe to cut the metal round bar into the required shape of the metal earphone shell. This method has the following Disadvantages: ①, low material utilization rate, high cost of raw materials, because metal round rods are used to process hollow earphone shells, so there will be a lot of waste; ②, low precision, due to the inevitable assembly d...
Claims
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