An injection molding tool and an injection molding method

By coordinating the segmented injection process with time-sharing heating of the runner system, the problems of energy consumption and flow stability in hot runner injection molding are solved, resulting in reduced energy consumption and improved production stability, and adapting to the processing needs of various thermoplastic raw materials.

CN122401786APending Publication Date: 2026-07-17CHONGQING ZHONGWEI XINCHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING ZHONGWEI XINCHENG TECH CO LTD
Filing Date
2026-04-30
Publication Date
2026-07-17

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Abstract

本申请涉及注塑成型技术领域，具体涉及一种注塑成型方法及注塑成型工装，注塑成型方法包括：将注塑机料筒与流道系统分别加热至预设温度，使塑料原料塑化为塑料熔体；采用分段注射工艺填充模具型腔，先以第一注射速度高速填充模具型腔至预设填充比例，再切换至更低的第二注射速度填充剩余体积，切换低速注射的同时控制流道系统停止加热；保压阶段保持流道系统停止加热，保压结束后对制品进行冷却定型；开模时启动流道系统加热，合模阶段持续加热至预设工作温度。本申请通过分段注射与流道分时加热的协同控制，兼顾了注塑生产的能耗控制、熔体流动稳定性与制品成型质量，提升了注塑工艺的量产适配性与生产效率。
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