Injection mold for electromagnetic coil package
By combining a segmented demolding mechanism and an asymmetric cooling channel, the problems of shear stress and uneven heat distribution during demolding of electromagnetic coil molds are solved, achieving safe and accurate demolding of workpieces and a high yield rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGBO JUFENG HIGH TECH ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2026-06-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing electromagnetic coil molds suffer from excessive shear stress during demolding due to the difference in friction between the two ends of the workpiece, which can easily lead to fracture or internal micro-cracks. Furthermore, uneven heat exacerbates the internal stress problem.
A segmented demolding mechanism is adopted, which uses a height-adjustable abutment plate and a delay gap design, combined with the inclined sliding structure of the inclined block and wedge block, to achieve safe differential demolding of the workpiece, and matches the heat shrinkage rate of the workpiece through an asymmetric cooling channel.
It effectively eliminates shear stress at the interface of workpieces, prevents fracture and micro-cracks, improves the adaptability and demolding accuracy of the mold, and ensures the integrity and yield of the product.
Smart Images
Figure CN122401804A_ABST