Injection mold for a hand-held storage case
By combining the dynamic pressure block and the shaping block with the arc-shaped core plate and the arc-shaped groove, the problem of one-piece molding of the hollow handle of the portable storage box was solved, achieving cost reduction and efficiency improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGHAI TONY STATIONERY CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-06-26
AI Technical Summary
Existing molds for portable storage boxes cannot form hollow handles in one piece, resulting in high production costs and low efficiency. After being formed separately, they need to be assembled manually, which increases labor costs.
By using dynamic pressure blocks and shaping blocks in combination with an arc-shaped core plate and an arc-shaped groove design, the hollow handle is integrally formed and can be easily demolded through the cooperation of the arc-shaped core plate and the arc-shaped groove.
This technology enables efficient molding of hollow handles, reduces production costs, simplifies the production process, avoids manual assembly, and improves production efficiency.
Smart Images

Figure CN224408303U_ABST