一种铜合金套铸造模具
By using a beryllium copper alloy demolding pusher, annular cooling channel, and spiral guide vane in the copper alloy sleeve casting mold, combined with elastic push assembly and guide structure, the problems of difficult demolding and uneven cooling of castings were solved, thereby improving casting quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG ZHENTE ALLOY MATERIAL CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional copper alloy casting molds suffer from difficulties in demolding, low and uneven cooling efficiency, leading to defects such as casting deformation, surface damage, shrinkage cavities, and cracks, which affect product quality and production efficiency.
The design incorporates a beryllium copper alloy demolding pusher, annular cooling channels, and spiral guide vanes, combined with an elastic push assembly and guiding structure, to achieve smooth demolding and uniform cooling, thereby improving casting quality and production efficiency.
It achieves efficient and uniform cooling of castings, avoids deformation and surface damage, improves the dimensional accuracy and surface quality of castings, extends the service life of molds, and increases production efficiency.
Smart Images
Figure CN224508399U_ABST
Abstract
Claims
1. A copper alloy sleeve casting mold, comprising a base (1), an upper mold (2), a lower mold (3), and a mold base sleeve (4), wherein the upper mold (2) and the lower mold (3) enclose a cavity, and the mold base sleeve (4) is fixed to the top of the base (1) and has a cavity for accommodating the lower mold (3); characterized in that: The lower mold (3) has a molding cavity in which a demolding push plate (5) is embedded. The demolding push plate (5) is in clearance fit with the side wall of the molding cavity and is made of beryllium copper alloy. The lower mold (3) is provided with an annular cooling channel (6), and the cooling channel (6) is provided with a spiral guide vane (7). The side wall of the lower mold (3) is provided with a liquid inlet (8) and a liquid outlet (9) that communicate with the cooling channel (6). The base (1) is provided with an elastic push assembly at the bottom. The elastic push assembly includes a U-shaped frame (10), an electric push rod (11) provided in the U-shaped frame (10), a push rod (12) provided on the electric push rod (11), and a buffer spring (13) sleeved on the outer wall of the push rod (12). The top end of the push rod (12) passes through the base (1) and connects to the bottom of the demolding push plate (5).
2. A copper alloy sleeve casting mold according to claim 1, characterized by: The top of the mold base sleeve (4) is provided with a guide post (14), and the outer wall of the lower mold (3) is provided with a sleeve (15) that slides with the guide post (14). The top of the guide post (14) is limited by a locking nut (16).
3. The copper alloy sleeve casting mold of claim 1, wherein: The elastic push assembly also includes a buffer plate (17) located at the output end of the electric push rod (11) and the lower end of the push rod (12), and the two ends of the buffer spring (13) abut against the bottom of the base (1) and the buffer plate (17) respectively.
4. The copper alloy sleeve casting mold of claim 1, wherein: The top of the mold base sleeve (4) is provided with a buffer platform (18), which is connected to the mold base sleeve (4) by a vertical spring (19), and the upper surface of the buffer platform (18) is higher than the upper surface of the lower mold (3).
5. The copper alloy sleeve casting mold of claim 1, wherein: The gap between the demolding push plate (5) and the side wall of the molding cavity is 0.05-0.1mm.
6. The copper alloy sleeve casting mold of claim 1, wherein: The top of the upper mold (2) is connected to a hydraulic cylinder (20), which is fixed to the top frame (21) of the cross-connecting mold base sleeve (4).
7. The copper alloy sleeve casting mold of claim 1, wherein: The spiral guide vane (7) extends along the axial direction of the cooling channel (6) and has a spiral angle of 15°-45°.