Processing device for injection molding of motor permanent magnet

Abstract

The invention discloses a processing device for injection molding of a motor permanent magnet. The processing device comprises a lower mold, an upper mold, an injection molding channel, a storage chamber, an impurity filtering device and a turbulence device, wherein an injection molding cavity is formed in the lower mold; the upper mold can move up and down relative to the lower mold; the injection molding channel is arranged on the upper mold and can be communicated with the injection molding cavity after the upper mold and the lower mold are closed; the storage chamber is used for storing injection molding raw materials and conveying the raw materials into the injection molding cavity through the injection molding channel; the impurity filtering device is used for filtering the materialsconveyed into the injection molding cavity from the storage chamber so as to remove impurities in the raw materials; and the turbulence device is used for stirring the filtered and impurity-removed materials to enable the raw materials to be in a turbulence state. According to the processing device, through the arrangement of the impurity filtering device, the impurities in the raw materials areeffectively removed, and it is guaranteed that the magnet obtained through injection molding is good in performance; and secondly, through the arrangement of the turbulence device, the raw materials achieve a good homogenizing effect, and the magnet is high in stability and not prone to loss of excitation.

Description

technical field [0001] The invention belongs to the technical field of motor production and processing, and in particular relates to a processing device for injection molding processing of motor permanent magnets. Background technique [0002] In order to solve the problem that the permanent magnet in the motor in the prior art is usually processed by sintering, casting, etc., the degree of shape change is small, the precision is low, the stability is poor, and the problem of easy loss of magnetism has appeared. This kind of magnet can achieve a large degree of shape change during processing and high precision. Traditional injection molding usually directly plasticizes the raw materials through a screw injection molding machine, and then injects them into the injection mold for injection molding. However, since the raw materials are easily doped with impurities, the performance of the injection-molded magnet will be affected, the stability of the magnet will be reduced, and...

AI Technical Summary

Problems solved by technology

However, since the raw material is easy to be doped with impurities, it will affect the performance of the magnet after injection molding, reduce the stability of the magnet, and easily cause the magnetic strength of the magnet to be uneven

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