Injection molding process for automotive parts

CN117698062BActive Publication Date: 2026-05-26上海练轶汽车零部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
上海练轶汽车零部件有限公司
Filing Date
2024-01-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing injection molding equipment has a long molding time and a long cooling time, resulting in low production efficiency and high costs. In addition, the demolding process requires manual operation, which is also inefficient.

Method used

It adopts a two-stage injection molding process and uses injection molding equipment with a rotating column and multiple pairs of inner molds. The first and second molding are carried out simultaneously. Combined with magnetic components, cooling components and push plate structure, it realizes automatic demolding and rapid cleaning and application of release agent.

Benefits of technology

It doubled the efficiency of injection molding, enabled automatic demolding and rapid cleaning and coating, reduced equipment costs and labor requirements, and improved production efficiency.

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Abstract

This invention provides an injection molding process for automotive parts, utilizing an injection molding machine for automotive parts. The machine includes a housing with a rotating column installed inside. Four mounting seats are fixedly connected circumferentially to the rotating column. Upper and lower inner molds are elastically mounted on the mounting seats. Each of the upper and lower inner molds has multiple corresponding mold cavities on opposite sides. Ejector pins are elastically mounted at the bottom of the multiple mold cavities on the lower inner mold, and injection holes are provided at the bottom of the multiple mold cavities on the upper inner mold. Magnetic suction components are installed at the edges of both the upper and lower inner molds. This process divides the automotive part molding process into two stages, with the primary and secondary molding stages performed simultaneously. A single machine can double its output per unit time, enabling automatic demolding and rapid mold cleaning and mold release agent application.
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