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.
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
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.
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.
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.
Smart Images

Figure CN122401809A_ABST