一种压铸模具用顶出挤压辅助成型结构
By introducing a combination of ejector pins and venting blocks into the die-casting mold, the technical problems that the prior art could not effectively solve are solved. By introducing an ejection extrusion-assisted forming structure into the die-casting mold, the problems of insufficient forming and gas retention in the production of aluminum alloy radiators are solved, achieving high-quality product appearance and smooth demolding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI DONGYAN MACHINERY
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-17
Smart Images
Figure CN224508431U_ABST
Abstract
Claims
1. An ejection extrusion assist forming structure for a die-casting mold, comprising a mold base (1), a back mold (2), a front mold (4), and a radiator body (9), characterized in that: The front mold (4) has a first mold cavity (5) at the end near the rear mold (2), and a second mold cavity (7) at the end away from the rear mold (2). An ejection groove (6) is provided between the first mold cavity (5) and the second mold cavity (7). A mold core (10) is fixedly installed on the front mold (4) through the first mold cavity (5). An ejection assembly (11) is provided on the front mold (4) through the second mold cavity (7). A cover plate (12) is fixedly installed on the end of the front mold (4) away from the rear mold (2). A connecting post (13) is fixedly installed on the end of the cover plate (12) near the ejection assembly (11). The ejection assembly (11) includes a connecting post (1101) and a mounting plate (1104). A fixing plate (1102) is fixedly installed at the end of the connecting post (1101) away from the rear mold (2), and an ejector pin (1103) is fixedly installed at the end of the fixing plate (1102) close to the connecting post (1101).
2. The ejection extrusion assist forming structure for a die casting mold according to claim 1, characterized by: The mounting plate (1104) is fixedly installed with the front mold (4), and the ejector pin (1103) passes through the fixed plate (1102) and the ejector groove (6) and abuts against the heat sink body (9).
3. The ejection extrusion assist forming structure for a die casting mold according to claim 1, characterized by: The ejector pin (1103) and ejector groove (6) are provided in multiples, and the multiple ejector pins (1103) and ejector grooves (6) are distributed at equal intervals.
4. The ejection extrusion assist forming structure for a die casting mold according to claim 1, characterized by: One end of the ejector pin (1103) is fixedly equipped with an exhaust block (15), which extends to the edge of the front mold (4).
5. The ejection extrusion assist forming structure for a die casting mold according to claim 1, characterized by: A butterfly spring (14) is fixedly installed on the outer wall of the connecting column 2 (13). The other end of the butterfly spring (14) away from the connecting column 2 (13) is adapted to the mounting plate (1104). The connecting column 2 (13) and the fixing plate (1102) are slidably connected.
6. The ejection extrusion assist forming structure for a die casting mold according to claim 1, characterized by: The cover plate (12) is fixedly installed with a guide sleeve (1105) at one end near the ejector assembly (11). The guide sleeve (1105) is slidably connected to the fixed plate (1102). The guide sleeve (1105), the connecting column (13) and the butterfly spring (14) are provided in multiples and are distributed at equal intervals.
7. The ejection extrusion assist forming structure for a die casting mold according to claim 1, characterized by: An injection sleeve (8) is fixedly installed at one end of the front mold (4) away from the rear mold (2). The injection sleeve (8) passes through the front mold (4) and extends to one end of the second mold cavity (7). A guide post (3) is fixedly installed on the mold base (1).