A mold core pulling belt extrusion pin structure
By setting up a rotary exit mechanism in the extrusion pin structure of the die core pull belt, the problem of the extrusion pin is easily adhered when exiting the casting, achieving higher production continuity and service life of the extrusion pin.
CN119237707BActive Publication Date: 2025-03-18ZHUZHOU SIXING MACHINERY
1 Cites 0 Cited by
Patent Information
- Application Number
- CN202411757724.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2044-12-03
AI Technical Summary
Technical Problem
In the prior art, the extrusion pin is prone to stick to the metal casting when it exits the casting, resulting in problems such as abnormal die noise and interfering pin jamming.
Method used
The mold core pulling belt extrusion pin structure is adopted, and the rotating exit of the extrusion pin rod is achieved by setting the first sleeve, the second sleeve and the movable block, changing the relative position between the casting and the extrusion pin, and reducing the risk of adhesion.
Benefits of technology
It effectively reduces the risk of adhesion of the extruded pin to the cast metal when it exits the mold, avoids abnormal noise of the mold and the interpressed pin stuck, and improves the continuous production and the service life of the extruded pin.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses a mold core pulling structure with an extrusion pin. The mold comprises a fixed mold insert, a fixed mold sleeve and a core pulling assembly with an extrusion pin structure. The core pulling assembly comprises a coaxially arranged extrusion pin, a rod sleeve, a first sleeve, a second sleeve and a movable block, and an extrusion cylinder for pushing the extrusion pin to move axially. One end of the extrusion pin matches the inner hole of the rod sleeve and is axially slidably connected to the rod sleeve, and the other end of the extrusion pin is fixedly connected to the movable block. The movable block is located inside the second sleeve and is threadedly connected to the inner wall of the second sleeve. The second sleeve is slidably and sealingly connected to the inner wall of the first sleeve. In the present invention, the extrusion pin of the mold core pulling assembly can enter the mold in a straight line when extruding the casting liquid, and can be rotatably withdrawn from the mold after the casting liquid solidifies, thereby changing the relative position between the extrusion pin and the casting, and reducing the risk of adhesion of the extrusion pin to the casting metal when the extrusion pin withdraws from the mold.
Need to check novelty before this filing date? Find Prior Art