Method for manufacturing plastic mould of automobile door plate loudspeaker mask

Abstract

The invention discloses a method for manufacturing a plastic mould of an automobile door plate loudspeaker mask. The method comprises the following steps: (A) selecting a plastic component structure:a left decoration component and a right decoration component of the automobile door plate loudspeaker mask; (B) selecting a mould structure: (a) designing a die cavity of the mould; (b) designing a die core: adopting the following methods: adding a belting pile in a hook shape on the die core; polishing the face of the die cavity before processing the texture; and increasing the thickness of an installation clamping position; (c) designing a parting face and a template; (d) designing a sprue; (e) designing an ejection system; and (f) cooling: cooling and solidifying the plastic components quickly; injecting PP into the die cavity by an injection molding machine, recovering an ejector bar to a position where the mould is closed under the action of a recovery bar and a return spring and completing the mould. The invention has easy method, simple and convenient operation, high strength, high temperature resistance, high accuracy, strong degree of durability, stable performance and good insulation property, reduces a large number of time and expenses consumed by repairing the mould and saves various costs by more than 50% in the design and processing of the mould.

Description

technical field [0001] The invention relates to the technical field of automotive plastic moulds, and more specifically relates to a method for manufacturing plastic molds for automobile door panels, loudspeakers and masks, which is suitable for the manufacture of various automobile plastic products. Background technique [0002] With the development of society, plastic products have become an indispensable part of people's life because of their lightness, beauty, durability and low price. People's requirements for plastic parts are getting higher and higher, not only pursuing the structural performance of plastic parts, but also paying more and more attention to the surface quality of plastic parts. Plastic products account for a considerable proportion of automotive interior parts. The quality of plastic parts is one of the important factors affecting the appearance and performance of cars. After the design and processing technology of plastic materials and products are de...

AI Technical Summary

Problems solved by technology

[0003] At present, the left and right decorative parts of the door panel speaker mask for automobiles are manufactured using a relatively traditional method, and the product can be produced, but the mold life is short (generally 200,000 molds), and the quality of the product is unstable (the key is that the product is prone to flashes, burrs, etc. )

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