Mold core-pulling structure and injection molding system

By utilizing the existing moving mold as a power source through the core-pulling structure of the mold, the linear and circular core-pulling actions are simplified, solving the problems of large size, high cost and complex control of traditional molds, and improving the production efficiency and product quality of injection molds.

CN122401809APending Publication Date: 2026-07-17CHANGSHA GREE HVAC EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGSHA GREE HVAC EQUIP CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional injection molds require two independent drive sources when performing linear and circular core-pulling actions simultaneously. This results in increased mold size, higher costs, more complex control systems, and a higher risk of coordination errors leading to product damage or core-pulling failures. Maintenance is also more difficult.

Method used

The mold core-pulling structure is adopted, and the existing moving mold is used as the power source. The mechanical linear motion of the second mold base drives the arc motion of the flipping insert to realize the mold closing or core pulling action. Only one additional drive source is needed, which simplifies the core pulling structure and reduces the complexity of the control system.

Benefits of technology

The number of internal driving components in the mold was reduced, the mold size was reduced, the cost and complexity of the control system were reduced, the reliability and production efficiency of the core-pulling action were improved, and the probability of failure was reduced.

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Abstract

本发明提供一种模具抽芯结构及注塑成型系统,模具抽芯结构包括驱动装置,用于驱动第一模座沿第一方向往复运动;第一模座,其在第一方向上的一侧设有用于容纳并加工目标工件的模腔;翻转镶块,转动安装于模腔在第一方向上的一侧,翻转镶块设有传动件;第二模座,设有与传动件相配合的引导部;第二模座可在外力驱动下沿第一方向靠近或远离第一模座运动,以驱使引导部与传动件配合并带动翻转镶块靠近或远离第一模座翻转,从而控制翻转镶块与模腔合模或抽芯。该模具抽芯结构利用了现有动模作为动力源驱动第二模座机械直线运动带动翻转镶块圆弧运动,以使翻转镶块可靠执行与第一模座的模腔合模或抽芯动作,降低了注塑模具的占用空间、成本及维护难度。
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