A mold structure for overmolding a transparent member

Through innovative mold structure design, the transparent part and pen-shaped shell are formed in one step and easily demolded, solving the problems of low production efficiency and high cost in existing technologies, and improving production efficiency and product quality.

CN224527852UActive Publication Date: 2026-07-21DONGGUAN ZEALWIN ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN ZEALWIN ELECTRONICS
Filing Date
2025-07-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing injection molds are difficult to use for one-time molding and precise positioning of transparent parts and pen-shaped shells, and demolding is difficult, resulting in low production efficiency and high costs.

Method used

Design a mold structure including a front mold assembly, a rear mold assembly, a gating system, and a sliding mechanism. Through the cooperation of the insert and the pull rod, the transparent part can be stably positioned and molded in the injection cavity in one step, and the wedge mechanism can be used for easy demolding.

Benefits of technology

This enables one-time injection molding of transparent parts and pen-shaped shells, improving production efficiency, reducing costs, and ensuring product quality and mold lifespan.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224527852U_ABST
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Abstract

The utility model relates to the technical fields of injection mold, especially to a mold structure for injection molding of transparent parts, comprising a front mold core, a back mold core and a row position mechanism, the front mold core and the back mold core cooperate with each other to form an injection molding cavity; the row position mechanism is provided with a core pulling assembly, a pen-shaped inner core, a sleeve beer insert and a sleeve beer pull rod, the pen-shaped inner core is arranged in the injection molding cavity; the pen-shaped inner core is provided with a shaft hole along its axial direction, the sleeve beer pull rod is arranged in the shaft hole and forms a sliding connection; the pen-shaped inner core is provided with a radial through hole along its radial direction, the sleeve beer insert is slidingly connected to the radial through hole and forms a transmission connection with the sleeve beer pull rod; one end of the sleeve beer insert away from the shaft hole is detachably connected with a transparent part. In summary, the cooperation of the transparent part and the pen-shaped shell is realized by one-time injection molding, the process is reduced, the efficiency is improved, the multi-level structure is reinforced and fixed, the quality is guaranteed, the design is stable and efficient, and the production cost is significantly reduced.
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