A kind of preparation method of multi-pole magnetic sucker and sucker

Abstract

The invention provides a method for preparing a multi-pole magnetic chuck, which includes the following steps: (1) preparing a metal cylinder of soft magnetic material, which is hollow inside and has openings at the upper and lower ends; (2) preparing a hard magnetic The permanent magnet cover sheet of material, its shape, size match with described barrel opening, and can seal the opening of described barrel lower end; Magnetizing to form a magnetic field with two or more poles on the cover; (4) encapsulating the cover in the lower opening of the barrel, and the cover and the barrel are magnetically attracted to each other to obtain an end-face multi-pole magnetic chuck. The invention also discloses a multi-pole magnetic sucker prepared by the method. The invention is used in the manufacture of horn automatic production lines.

Description

technical field [0001] The invention relates to horn automatic production technology, in particular to a preparation method and the sucker for a multi-pole magnetic sucker used in a horn automatic production line. Background technique [0002] In the preparation of the horn, the magnetic processing is the initial work, including: dispensing of the inner and outer sides of the basin frame, dispensing of the magnet, inlaying of the magnet and washer, and plugging and unplugging of the magnetic gauge, etc. Most of the current factories use manual operation. Due to the strict requirements for magnetic processing, the quality is closely related to the experience and technology of manual operators, so the pass rate cannot be guaranteed. Secondly, due to the manual operation, the work efficiency is not high, and it cannot meet the needs of a large number of users. [0003] In the prior art, the assembly of the speaker magnetic circuit in the factory is mostly done manually, the la...

AI Technical Summary

Problems solved by technology

Most of the current factories use manual operation. Due to the strict requirements for magnetic processing, the quality is closely related to the experience and technology of manual operators, so the pass rate cannot be guaranteed.

Secondly, due to the manual operation, the work efficiency is not high, and it cannot meet the needs of a large number of users

[0003] In the prior art, the assembly of the speaker magnetic circuit in the factory is mostly done manually, the labor cost remains high, and the product defect rate is high. When the workers assemble the basin (magnetic bowl), magnet and washer, they need to use The magnetic return gauge will position the three. From the perspective of production technology, the concentricity of the three cannot be guaranteed. In addition, the control of the amount of glue is not good. There is overflow of glue, and the coating between the pot frame, the magnet and the washer The glue surface is uneven, easy to fall off, and the thickness of the glue is inconsistent, which will easily cause gaps after the glue is dried, which will affect the sound quality. In addition, the use of magnetic return positioning will also easily cause dirt in the magnetic gap and produce defective products.

[0004] At present, there are few production lines that can be used for the automatic production of speakers, and most of them are immature and perfect, including their supporting tools, control systems and many other aspects, which need further research and development.

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