Injection mould and machining method for high-glossiness plastic part

Abstract

The invention discloses an injection mould and a machining method for a high-glossiness plastic part. The injection mould comprises a cavity and a core, wherein a cavity insert is arranged in the cavity, a core insert is arranged in the core, and a mould cavity is formed between the cavity insert and the core insert. The injection mould is characterized in that a water path hole and a steam path hole are formed in the cavity and the cavity insert; the distance H between the steam path hole and the surface of the mould cavity is 10-12mm; an empty wall groove is formed in and a heat-isolation convex plate is arranged on the inner wall of the cavity; the heat-isolation convex plate contacts with the bottom surface of the cavity insert; exhaust grooves are uniformly distributed in the upper end surface of the cavity insert and located at the outer side and the inner side of the mould cavity; and the distance of each exhaust groove is 20-25mm.

Description

technical field [0001] The invention relates to an injection mold and a processing method of a high-gloss plastic part. Background technique [0002] In some plastic products, people have very high requirements on the appearance of the surface (such as car exterior decorations, mobile phone casings, etc.), and after the existing injection molds are used to mold plastic parts, the surface of the plastic parts usually has weld lines and weld lines. , ripples, silver lines, etc., and the surface of plastic parts cannot achieve high gloss and high brightness. Therefore, the existing technology usually requires post-spraying or secondary processing of injection-molded plastic parts, which reduces production efficiency and improves production efficiency. Production costs, while secondary processing may cause damage to plastic parts and affect product quality. Contents of the invention [0003] The object of the present invention is to overcome the shortcomings of the prior art,...

AI Technical Summary

Problems solved by technology

[0002] In some plastic products, people have very high requirements on the appearance of the surface (such as car exterior decorations, mobile phone casings, etc.), and after the existing injection molds are used to mold plastic parts, the surface of the plastic parts usually has weld lines and weld lines. , ripples, silver lines, etc., and the surface of plastic parts cannot achieve high gloss and high brightness. Therefore, the existing technology usually requires post-spraying or secondary processing of injection-molded plastic parts, which reduces production efficiency and improves production efficiency. Production costs, while secondary processing may cause damage to plastic parts and affect product quality

Images