一种热室压铸机的模具水平放置射料结构
By combining the horizontal placement of the mold with the tilted setting of the injection nozzle, the problems of guide hole wear and mold misalignment in hot chamber die casting machines are solved, achieving higher production quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ZHONGTANG JINCHENG DIE CASTING MACHINERY FACTORY
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-17
AI Technical Summary
In existing hot chamber die casting machines, the inclined nozzle setting causes the mold to tilt, resulting in high friction between the guide hole and the tie rod, which is prone to wear and misalignment during mold closing, affecting production quality.
The mold is placed horizontally, and the injection nozzle is kept at an angle. Through the design of the gating channel and the injection nozzle, the horizontal movement of the moving mold base plate and the moving mold is achieved, which reduces friction and avoids misalignment, ensuring the accuracy of the parting line.
It reduces the friction between the guide hole and the tie rod, avoids wear, ensures the accuracy of the parting line, improves production quality and efficiency, reduces material flying and bursting, and lowers production costs.
Smart Images
Figure CN224508418U_ABST
Abstract
Claims
1. A horizontally positioned injection structure for a hot chamber die-casting machine, characterized in that: It includes mold components and gooseneck components; The mold assembly includes a fixed mold connected to a fixed mold base plate and a movable mold connected to a movable mold base plate. The fixed mold base plate and the movable mold base plate are respectively sleeved on the tie rod. A gating channel is formed between the fixed mold and the movable mold for communicating with the gating cavity inside the mold assembly. The gooseneck assembly includes a nozzle; the nozzle has an injection channel extending through both ends; the outlet end of the nozzle is hemispherical; the diameter of the outlet end of the injection channel is smaller than the diameter of the casting channel. The mold assembly and the tie rod are respectively placed horizontally, and the central axis of the gating channel is horizontal, so that the moving mold base plate and the moving mold can move horizontally synchronously; the injection nozzle can be tilted relative to the mold assembly, and the central axis of the gating channel does not coincide with the central axis of the injection channel; the discharge end of the injection nozzle can be inserted into the gate of the gating channel and the outer arc surface of the discharge end of the injection nozzle is in contact with the inner wall of the gate of the gating channel; The fit between the gate of the gating channel and the hemispherical discharge end of the injection nozzle allows the moving mold base plate and the moving mold to be placed and moved horizontally while the injection nozzle remains tilted. This reduces the friction between the guide hole of the moving mold base plate and the tie rod, thus preventing side wear on the guide hole and tie rod. It also makes it less likely for the moving mold and the fixed mold to misalign and ensures the accuracy of their parting line.
2. The horizontally positioned injection structure of the hot chamber die-casting machine according to claim 1, characterized in that: The central axis of the injection channel and the central axis of the casting channel form an angle, and 0° < the angle ≤ 12°.
3. The horizontally positioned injection structure of the hot chamber die-casting machine according to claim 1, characterized in that: The inner wall around the gate of the casting channel is provided with an arc surface or inclined surface for cooperating with the hemispherical discharge end of the injection nozzle.
4. The horizontally positioned injection structure of the hot chamber die-casting machine according to claim 3, characterized in that: After the discharge end of the nozzle is inserted into the gating channel, the front end of the discharge end of the nozzle passes through the gate and extends a certain distance toward the outlet of the gating channel.
5. The horizontally positioned injection structure of the hot chamber die-casting machine according to claim 3, characterized in that: When the inner wall of the gate of the casting channel is an arc surface, the shortest straight distance between the two ends of the arc surface is 0.2-2mm; the shortest straight distance between the two ends of the outer arc surface of the discharge end of the nozzle is greater than 2mm.
6. The horizontally positioned injection structure of the hot chamber die-casting machine according to claim 1, characterized in that: The diameter of the outlet end of the injection channel is smaller than the diameter of the rest of the injection channel.
7. The horizontally positioned injection structure of the hot chamber die-casting machine according to claim 1, characterized in that: The gooseneck assembly further includes a crucible, a pressure chamber, an injection head, and a nozzle body; the crucible is used to hold molten metal; the pressure chamber is placed inside the crucible; an injection chamber and a gooseneck channel are arranged sequentially within the pressure chamber; the outlet of the gooseneck channel is connected to the injection nozzle through the nozzle body; a side feed channel for molten metal to flow into is provided on the side of the injection chamber; the injection head can be inserted into the injection chamber to seal the side feed channel and perform injection; the height of the outlet portion of the gooseneck channel is higher than the liquid level of the molten metal; the injection head is inserted vertically into the injection chamber.