A casting valve inner shell stripping device
By designing a demolding device for the inner shell of cast valve parts, the casting is fixed by an internal three-jaw chuck and the shell is broken by a hammer driven by a turntable. This solves the problem of the difficulty in removing the inner shell of cast valve parts in the existing technology and realizes an efficient demolding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHOUSHAN HONGSHENG IND CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-12
AI Technical Summary
Existing technologies are insufficient to effectively destroy and remove the complex internal structure of cast valve components.
A demolding device for the inner shell of a cast valve component was designed. The casting is fixed by an internal three-jaw chuck, and the turntable drives a hammer to strike the inner shell through a connecting rod, breaking the shell and collecting it in a collection tray.
It achieves efficient crushing and convenient collection of the internal shell of cast valve parts, simplifying the demolding process.
Smart Images

Figure CN224346930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting demolding, and in particular to a demolding device for the inner shell of a casting valve. Background Technology
[0002] The valve body of a valve component is generally made by investment casting. The casting is wrapped in a shell. The outer shell is relatively easy to handle and can be struck at a good angle and distance. However, the inner shell is complex and has interference, making it difficult to break with ordinary tools. Without breaking the shell, it is difficult to remove the valve. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a demolding device for the inner shell of cast valve parts, which solves the current pain points in this field.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0005] A demolding device for the inner shell of a cast valve component includes a base, a bracket fixedly mounted on the base, a fixed plate fixedly mounted on the top of the bracket, an inner three-jaw chuck on the fixed plate that can extend into the opening of the casting to fix it, a rotating shaft movably mounted at the center of the fixed plate, a turntable fixedly mounted at one end of the rotating shaft that can extend into the casting, a connecting rod hinged to the turntable, a torsion spring provided at the hinge of the connecting rod, and a striking hammer fixedly mounted at the other end of the connecting rod.
[0006] To further explain, a telescopic cylinder is horizontally slidably installed at the center of the fixed plate, a rotating shaft is rotatably installed in the telescopic cylinder, and an external three-jaw chuck is provided on the fixed plate, which can slide to clamp the telescopic cylinder.
[0007] To further explain, a motor is fixedly installed at one end of the telescopic cylinder, and the motor is connected to the rotating shaft.
[0008] To further explain, a collection tray is fixedly installed on the base.
[0009] In summary, the advantages of this utility model compared to the prior art are as follows: the device can fix the valve body casting by the internal three-jaw chuck, then extend the turntable into the casting, rotate the rotating shaft and swing the connecting rod through the turntable to make the hammer strike the inner shell and break it. The broken shell can fall into the collection tray for easy collection. Attached Figure Description
[0010] The above and other objects, features, and advantages of the present invention will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated in the drawings by way of example and not limitation, in which:
[0011] Figure 1 A schematic diagram of a demolding device for the inner shell of a cast valve component;
[0012] Figure 2 This is a schematic diagram of the turntable structure.
[0013] Explanation of reference numerals in the attached drawings: 10. Base; 11. Collection tray; 12. Support; 13. Fixing tray; 14. Inner three-jaw chuck; 15. Outer three-jaw chuck; 16. Telescopic cylinder; 17. Rotating shaft; 18. Motor; 19. Turntable; 20. Connecting rod; 21. Striking hammer. Detailed Implementation
[0014] The utility model will be further described in detail below with reference to the accompanying drawings.
[0015] A demolding device for the inner shell of a cast valve component includes a base 10, on which a collecting tray 11 and a bracket 12 are fixedly mounted. A fixing plate 13 is fixedly mounted on the top of the bracket 12. An inner three-jaw chuck 14 and an outer three-jaw chuck 15 are respectively arranged on both sides of the fixing plate 13. The inner three-jaw chuck 14 can extend into the opening of the casting, slide outward, and support and fix the opening of the casting. A telescopic cylinder 16 is horizontally slidably mounted at the center of the fixing plate 13. The outer three-jaw chuck 15 can slide to clamp the telescopic cylinder 16. A rotating shaft 17 is rotatably mounted in the telescopic cylinder 16. A motor 18 is fixedly mounted at one end of the telescopic cylinder 16 and connected to the rotating shaft 17. The other end of the rotating shaft 17 is fixed... A turntable 19 is fixedly installed, and a connecting rod 20 is hinged to the turntable 19. A torsion spring is provided at the hinge of the connecting rod 20. A hammer 21 is fixedly installed at the other end of the connecting rod 20. The connecting rod 20 is made of a material with a certain degree of toughness and elasticity, such as plastic. The hammer 21 is relatively hard but has a certain degree of elasticity, such as rubber. Moving the telescopic cylinder 16 can move the turntable 19 to a suitable position inside the casting. The rotation of the turntable 19 can swing the connecting rod 20, thereby causing the hammer 21 to strike the inner shell and break it. The motor 18 controls the turntable 19 to rotate intermittently, so that the hammer 21 can strike continuously, thereby breaking the shell. The broken shell can fall into the collection tray 11 for easy collection.
[0016] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The scope of protection of the present utility model is determined by the appended claims.
Claims
1. A demolding device for the inner shell of a cast valve component, characterized in that: Includes a base (10), on which a bracket (12) is fixedly installed. A fixed plate (13) is fixedly installed on the top of the bracket (12). An inner three-jaw chuck (14) is provided on the fixed plate (13). The inner three-jaw chuck (14) can extend into the opening of the casting to fix it. A rotating shaft (17) is movably installed at the center of the fixed plate (13). A turntable (19) is fixedly installed at one end of the rotating shaft (17) which can extend into the casting. A connecting rod (20) is hinged on the turntable (19). A torsion spring is provided at the hinge of the connecting rod (20). A hammer (21) is fixedly installed at the other end of the connecting rod (20).
2. The casting valve inner shell demolding device according to claim 1, characterized in that: A telescopic cylinder (16) is horizontally slidably installed at the center of the fixed plate (13). A rotating shaft (17) is rotatably installed in the telescopic cylinder (16). An external three-jaw chuck (15) is provided on the fixed plate (13). The external three-jaw chuck (15) can slide to clamp the telescopic cylinder (16).
3. The casting valve inner shell demolding device according to claim 2, characterized in that: A motor (18) is fixedly installed at one end of the telescopic cylinder (16), and the motor (18) is connected to the rotating shaft (17).
4. The demolding device for the inner shell of a cast valve component according to claim 1, characterized in that: A collection tray (11) is fixedly installed on the base (10).