Automatic shell-making wax mold suspension device for investment casting
By designing an adjustable hook assembly, the problem of limited versatility caused by the fixed hooks in existing automatic shell-making wax pattern suspension devices for investment casting is solved, enabling flexible hook replacement and improving the versatility and stability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUCHENG ZHUOYUAN MASCH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-05
AI Technical Summary
The hooks of existing automatic wax pattern hanging devices for investment casting are generally fixed, which makes it impossible to replace the hooks according to the shape and structure of the wax pattern, thus limiting their versatility.
By designing adjustable hook components, including curved plates, right-angle plates, connecting shafts, and fastening components, the position and shape of the hooks can be flexibly changed to adapt to different wax model shapes and structures.
This improves the versatility and operational stability of the device, ensuring the flexibility and reliability of the wax model suspension process.
Smart Images

Figure CN224195869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of investment casting technology, specifically to an automatic wax pattern suspension device for investment casting. Background Technology
[0002] The automatic wax pattern suspension device for investment casting is an important piece of equipment used in the investment casting production process to suspend the wax pattern so that it can smoothly complete each shell-making process.
[0003] A search revealed a Chinese patent with publication number CN219805347U that discloses an automatic wax pattern suspension device for investment casting. The device uses an external positioning support plate and an external suspension ring to dock with the hooks on the wax pattern. When the completed wax pattern needs to be removed, the operator only needs to control the external adjustment handle to move the external positioning support plate into the inner side of the external suspension ring. At this time, the hooks on the wax pattern will automatically separate and fall off from the external suspension ring.
[0004] However, in the prior art, the hooks of wax model hanging devices are generally fixed, making it impossible to change the hooks according to the shape and structure of the wax model. In order to solve the problem of limited versatility of the prior art wax model hanging devices, this application connects hooks of different structures to the main body and changes the position of the hooks to make them suitable for different scenarios, thereby improving the versatility of the device. Therefore, a new solution is needed to solve this problem. Utility Model Content
[0005] The aforementioned background technology addresses the shortcomings and defects of existing technologies, such as the fact that hooks are generally fixed, making it impossible to replace hooks according to the shape and structure of the wax model, thus limiting versatility.
[0006] The present invention discloses an automatic wax pattern suspension device for investment casting, comprising a main body, on which two support frames are provided. Each support frame includes a horizontal plate and a vertical plate. The horizontal plate is disposed on the main body, and the upper end of the vertical plate is rotatably connected to the horizontal plate. A connecting shaft is provided at the lower end of the vertical plate, and hook assemblies are provided at both ends of the connecting shaft. Fastening assemblies are provided on the connecting shaft.
[0007] Furthermore, the hook assembly includes an arc-shaped plate and a right-angle plate. The arc-shaped plate is fixed to one end of the connecting shaft, and the right-angle plate is fixedly installed on the other end of the connecting shaft. An adjustment plate is provided on the right-angle plate, and the adjustment plate is rotatably installed on the right-angle plate via a fixing rod. A limit member is provided between the right-angle plate and the fixing rod.
[0008] Furthermore, the limiting component includes a retaining ring, which is slidably mounted on the fixing rod and engages with the right-angle plate. A spring is provided between the retaining ring and the fixing rod.
[0009] Furthermore, the upper end of the vertical plate is rotatably connected to the horizontal plate via a pivot, and a limiting plate is slidably provided on the vertical plate, the limiting plate being U-shaped.
[0010] Furthermore, a second spring is provided between the limiting plate and the vertical plate, and a first telescopic rod is provided inside the second spring. One end of the first telescopic rod is installed on the vertical plate, and the other end of the first telescopic rod is installed on the limiting plate.
[0011] Furthermore, one of the two horizontal plates is mounted on the main body, and the other horizontal plate is slidably disposed with respect to the main body. A tension spring is provided between the two horizontal plates, and a telescopic rod is provided inside the tension spring. The two ends of the telescopic rod are respectively mounted on the corresponding horizontal plates.
[0012] Furthermore, the fastening assembly includes a fastening nut, which is threadedly connected to the connecting shaft, and an anti-slip pad is provided on one side of the fastening nut, which is fitted onto the connecting shaft.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model includes components such as an adjusting plate, a right-angle plate, an arc-shaped plate, and a connecting shaft. During operation, the two arc-shaped plates cooperate to form a circular hook. By driving the vertical plate to rotate, the positions of the arc-shaped plate and the right-angle plate are interchanged, allowing the two right-angle plates to cooperate and form a planar hook. By driving the connecting shaft to rotate, the positions of the right-angle plate and the adjusting plate are interchanged. After the adjusting plate is rotated to a preset angle, it is fixed by a limiting component, thus realizing arbitrary hooking, achieving applicability to different scenarios, and improving the versatility of the device.
[0015] 2. This utility model, by incorporating components such as a fastening nut, an anti-slip pad, a limiting plate, and a telescopic rod, utilizes the cooperation between the fastening nut and the anti-slip pad during operation. The fastening nut rotates, driving the anti-slip pad to move closer to or further away from the vertical plate, thereby altering the frictional force between the anti-slip pad and the vertical plate. This adjusts the force required to drive the connecting shaft, preventing it from rotating automatically. The limiting plate, the telescopic rod, and the spring work together to restrict the position of the vertical and horizontal plates, preventing the vertical plate from rotating automatically and improving the stability of the device during operation. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3 This is a schematic diagram of a partial explosion of the present invention;
[0020] Figure 4 This is a front view of the present invention.
[0021] In the diagram: 1. Main body; 2. Support frame; 201. Horizontal plate; 202. Vertical plate; 3. Rotating shaft; 4. Fastening nut; 5. Anti-slip pad; 6. Arc plate; 7. Connecting shaft; 8. Right angle plate; 9. Adjusting plate; 10. Fixing rod; 11. Snap ring; 12. Spring 1; 13. Limiting plate; 14. Telescopic rod 1; 15. Spring 2; 16. Telescopic rod 2; 17. Tension spring. Detailed Implementation
[0022] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0023] Please see Figure 1 , Figure 3 , Figure 4 The present invention relates to an automatic wax pattern hanging device for investment casting, comprising a main body 1, on which two support frames 2 are provided. Each support frame 2 includes a horizontal plate 201 and a vertical plate 202. The horizontal plate 201 is mounted on the main body 1, and the upper end of the vertical plate 202 is rotatably connected to the horizontal plate 201. A connecting shaft 7 is provided at the lower end of the vertical plate 202. Hook assemblies are provided at both ends of the connecting shaft 7, and fastening assemblies are provided on the connecting shaft 7.
[0024] like Figure 3 As shown, the hook assembly includes an arc plate 6 and a right-angle plate 8. The arc plate 6 is fixed to one end of the connecting shaft 7, and the right-angle plate 8 is fixedly installed on the other end of the connecting shaft 7. The corner of the right-angle plate 8 is chamfered. An adjustment plate 9 is provided on the right-angle plate 8. The adjustment plate 9 is rotatably installed on the right-angle plate 8 through a fixing rod 10. A limit member is provided between the right-angle plate 8 and the fixing rod 10.
[0025] Combination Figure 1 , Figure 2As shown, the limiting component includes a retaining ring 11, which is slidably mounted on the fixed rod 10. The fixed rod 10 has a flat surface to prevent the retaining ring 11 from rotating on the fixed rod 10. The retaining ring 11 has teeth near the right angle plate 8 and is engaged with the right angle plate 8. A spring 12 is provided between the retaining ring 11 and the fixed rod 10.
[0026] See Figure 3 , Figure 4 As shown, the upper end of the vertical plate 202 is rotatably connected to the horizontal plate 201 via a rotating shaft 3. A limiting plate 13 is slidably provided on the vertical plate 202. The limiting plate 13 is set in a "U" shape. The position between the vertical plate 202 and the horizontal plate 201 is restricted by the limiting plate 13, thereby preventing the vertical plate 202 from rotating automatically on the horizontal plate 201.
[0027] In this embodiment, a second spring 15 is provided between the limiting plate 13 and the vertical plate 202. A first telescopic rod 14 is provided inside the second spring 15. One end of the first telescopic rod 14 is installed on the vertical plate 202, and the other end of the first telescopic rod 14 is installed on the limiting plate 13.
[0028] In this embodiment, one of the two horizontal plates 201 is mounted on the main body 1, and the other horizontal plate 201 is slidably disposed with respect to the main body 1. A tension spring 17 is disposed between the two horizontal plates 201, and a telescopic rod 16 is disposed on the inner side of the tension spring 17. The two ends of the telescopic rod 16 are respectively mounted on the corresponding horizontal plates 201. By driving the horizontal plate 201 to move, the horizontal plate 201 drives the vertical plate 202 to move, and the vertical plate 202 drives the connecting shaft 7 on one side to move accordingly. While the horizontal plate 201 moves, it drives the tension spring 17 to stretch. When the horizontal plate 201 is released, the tension spring 17 drives the horizontal plate 201 to automatically reset.
[0029] The fastening assembly includes a fastening nut 4, which is threadedly connected to the connecting shaft 7. An anti-slip pad 5 is provided on one side of the fastening nut 4 and is fitted onto the connecting shaft 7. By driving the fastening nut 4 to rotate, the fastening nut 4 drives the anti-slip pad 5 to move, thereby changing the friction between the fastening nut 4 and the vertical plate 202 and preventing the connecting shaft 7 from rotating automatically.
[0030] The implementation principle is as follows: When the hook needs to be changed, the worker drives the limiting plate 13 to move downward. The limiting plate 13 drives the second spring 15 to compress. After the limiting plate 13 separates from the horizontal plate 201, the limiting plate 13 is rotated. The limiting plate 13 drives the vertical plate 202 to rotate. The vertical plate 202 drives the arc plate 6 and the right-angle plate 8 to rotate through the rotating shaft 3, thereby realizing the exchange of positions of the right-angle plate 8 and the arc plate 6. After the position is exchanged, the limiting plate 13 is released. The second spring 15 releases force and drives the limiting plate 13 to reset, thereby restricting the position between the vertical plate 202 and the horizontal plate 201.
[0031] When it is necessary to switch the positions of the right-angle plate 8 and the adjusting plate 9, drive the right-angle plate 8 or the adjusting plate 9 to rotate, and the other will follow the rotation through the connecting shaft 7, and the positions of the right-angle plate 8 and the adjusting plate 9 can be directly switched to the preset position;
[0032] When the angle of the adjusting plate 9 needs to be adjusted, the operator drives the retaining ring 11 to slide on the fixed rod 10 and releases it from the engagement with the right-angle plate 8. As the retaining ring 11 moves, it compresses the spring 12, which in turn drives the retaining ring 11 to rotate. The retaining ring 11 drives the fixed rod 10 to rotate, and the fixed rod 10 drives the adjusting plate 9 to rotate accordingly. When the adjusting plate 9 rotates to the preset angle, the retaining ring 11 is released. Under the action of the spring 12, the retaining ring 11 is driven to automatically reset and engage with the right-angle plate 8, thereby limiting the angle of the adjusting plate 9.
[0033] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. An automatic wax pattern making and hanging device for investment casting, comprising a main body (1), characterized in that: The main body (1) is provided with two support frames (2). The support frame (2) includes a horizontal plate (201) and a vertical plate (202). The horizontal plate (201) is provided on the main body (1). The upper end of the vertical plate (202) is rotatably connected to the horizontal plate (201). The lower end of the vertical plate (202) is provided with a connecting shaft (7). Both ends of the connecting shaft (7) are provided with hook assemblies. Fastening assemblies are provided on the connecting shaft (7).
2. The automatic wax pattern making and hanging device for investment casting according to claim 1, characterized in that: The hook assembly includes an arc plate (6) and a right-angle plate (8). The arc plate (6) is fixed to one end of the connecting shaft (7), and the right-angle plate (8) is fixedly installed on the other end of the connecting shaft (7). An adjustment plate (9) is provided on the right-angle plate (8). The adjustment plate (9) is rotatably installed on the right-angle plate (8) through a fixing rod (10). A limit member is provided between the right-angle plate (8) and the fixing rod (10).
3. The automatic wax pattern making and hanging device for investment casting according to claim 2, characterized in that: The limiting component includes a retaining ring (11), which is slidably mounted on the fixing rod (10). The retaining ring (11) is engaged with the right-angle plate (8), and a spring (12) is provided between the retaining ring (11) and the fixing rod (10).
4. The automatic wax pattern making and hanging device for investment casting according to claim 1, characterized in that: The upper end of the vertical plate (202) is rotatably connected to the horizontal plate (201) via a rotating shaft (3). A limiting plate (13) is slidably provided on the vertical plate (202), and the limiting plate (13) is set in a "U" shape.
5. The automatic wax pattern making and hanging device for investment casting according to claim 4, characterized in that: A second spring (15) is provided between the limiting plate (13) and the vertical plate (202). A first telescopic rod (14) is provided inside the second spring (15). One end of the first telescopic rod (14) is installed on the vertical plate (202), and the other end of the first telescopic rod (14) is installed on the limiting plate (13).
6. The automatic wax pattern making and hanging device for investment casting according to claim 1, characterized in that: One of the two horizontal plates (201) is mounted on the main body (1), and the other horizontal plate (201) is slidably disposed with respect to the main body (1). A tension spring (17) is disposed between the two horizontal plates (201), and a telescopic rod (16) is disposed on the inner side of the tension spring (17). The two ends of the telescopic rod (16) are respectively mounted on the corresponding horizontal plate (201).
7. The automatic wax pattern making and hanging device for investment casting according to claim 1, characterized in that: The fastening assembly includes a fastening nut (4), which is threaded to the connecting shaft (7). An anti-slip pad (5) is provided on one side of the fastening nut (4), and the anti-slip pad (5) is fitted onto the connecting shaft (7).
Citation Information
Patent Citations
Automatic shell-making wax mold suspension device for investment casting
CN219805347U