A wax pattern mold
The demolding assembly, which uses a sliding inclined block to move the moving block and connecting rod, combined with the connecting assembly of eccentric wheel and ball bearings, solves the problems of difficult demolding and easy damage of wax molds. It achieves non-destructive demolding of wax molds and stable mold connection, thereby improving production efficiency and mold service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CANGZHOU CHANGYUAN PIPE FITTINGS CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-09
AI Technical Summary
Existing wax molds have problems with difficulty in demolding and are prone to damage, making it difficult to meet the needs of efficient and high-quality production.
The demolding assembly uses a sliding inclined block to drive the moving block and connecting rod, combined with an eccentric wheel and ball bearing connection assembly. The sliding inclined block enables labor-saving demolding of the wax model, and the spring provides a restoring force to ensure the integrity of the wax model. The connection assembly achieves a stable connection of the mold through the cooperation of the protrusion and the groove, and the eccentric wheel drives the ejector rod to slide to achieve rapid separation.
It enables non-destructive demolding of wax molds, improves production efficiency and mold lifespan, ensures the integrity of wax molds and the stable connection of molds, and enhances production efficiency and flexibility.
Smart Images

Figure CN224333379U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wax mold technology, and in particular to a wax mold. Background Technology
[0002] In the industrial production field, wax molds are widely used as a key molding tool. They are mainly used to make preliminary wax models, which are then used in casting or injection molding processes to form the basic structure of the product. The quality and molding efficiency of the wax model directly affect the subsequent processes and the quality and production efficiency of the final product. With the continuous development of the manufacturing industry, the performance requirements for wax molds are also constantly increasing to meet the needs of high-precision and high-efficiency production.
[0003] Existing wax molds typically have a basic structure, using simple mechanical components to open, close, and demold. They generally consist of a fixed base and a movable upper mold, with the upper mold opened and closed manually or via a simple pneumatic device. During demolding, ejection mechanisms such as ejector pins are used to directly act on the wax mold or mold, utilizing external force to achieve demolding. However, these traditional mechanisms often lack sophisticated design and are difficult to meet the demands of efficient and high-quality production.
[0004] A significant problem with existing wax molds during demolding is that demolding is difficult and easily leads to damage to the wax mold. Due to the simple design of the demolding mechanism, a large external force is required during demolding, which can easily cause the wax mold to be pulled or squeezed, deformed or broken, affecting the quality and integrity of the wax mold, and thus reducing the efficiency of subsequent processes and product quality. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a wax mold, which aims to improve the problems of difficult demolding and easy damage to the wax mold.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a wax mold, including a base, a demolding component inside the base, a lower mold fixedly connected to the upper surface of the base, an upper mold above the lower mold, a connecting component inside the upper mold, a wax injection hole on the upper surface of the upper mold, and a handle on the outer wall of the upper mold;
[0007] The demolding assembly includes a demolding module, which is disposed inside the base. An inclined block is slidably connected to the inner wall of the base, and a moving block is slidably connected to the outer wall of the inclined block. A connecting rod is fixedly connected to the upper surface of the moving block, and the upper surface of the connecting rod is fixedly connected to the lower surface of the demolding module. The outer wall of the demolding module is slidably connected to the inner wall of the lower mold. A locking assembly is provided inside the base.
[0008] Furthermore, the connecting component includes a protrusion, the upper surface of which is fixedly connected to the lower surface of the upper mold, a ball bearing is provided inside the protrusion, a push rod is slidably connected to the inner wall of the upper mold, an eccentric wheel is rotatably connected to the inner wall of the upper mold, a groove is formed on the upper surface of the lower mold, and the protrusion is disposed inside the groove.
[0009] Furthermore, a spring four is sleeved on the outer wall of the push rod, with one end of the spring four fixedly connected to the outer wall of the push rod and the other end of the spring four fixedly connected to the inner wall of the upper mold.
[0010] Furthermore, a spring is sleeved on the outer wall of the connecting rod, one end of the spring is fixedly connected to the upper surface of the moving block, and the other end of the spring is fixedly connected to the inner wall of the lower mold.
[0011] Furthermore, a handle is fixedly connected to one side of the outer wall of the inclined block, and a sliding rod is fixedly connected to the lower surface of the inclined block.
[0012] Furthermore, a second spring is sleeved on the outer wall of the slide rod, one end of the second spring is fixedly connected to the outer wall of the inclined block, and the other end of the second spring is fixedly connected to the inner wall of the base.
[0013] Furthermore, the locking assembly includes a locking block, the outer wall of which is slidably connected to the inner wall of the base, and the locking block is disposed inside the inclined block.
[0014] Furthermore, a spring three is sleeved on the outer wall of the card block, one end of the spring three is fixedly connected to the lower surface of the card block, and the other end of the spring three is fixedly connected to the inner wall of the base.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the demolding component slides within the base via an inclined block, causing the moving block to slide upwards. This, in turn, drives the demolding module to rise via a connecting rod, thus demolding the wax model. The outer wall of the demolding module fits tightly against the inner wall of the lower mold, ensuring the integrity of the wax model. Springs one and two assist in resetting, preparing for the next wax injection molding. This demolding method is simple to operate, labor-saving, efficient, and improves production efficiency, while avoiding damage to the wax model due to improper demolding.
[0017] 2. In this utility model, when connecting the upper and lower molds, the protrusion is inserted into the groove for initial positioning. The eccentric wheel is rotated, and its rotation drives the ejector rod to slide on the inner wall of the upper mold. The ejector rod cooperates with the ball bearing to make the protrusion and the groove tightly connected, achieving a stable connection. The spring provides elastic force to prevent the mold from loosening during wax injection, ensuring the quality of the wax mold. When disassembling, the mold can be quickly separated by rotating the eccentric wheel in the opposite direction, which is convenient for maintenance and replacement, improves the service life of the mold and production flexibility, and is easy to operate, thus improving production efficiency. Attached Figure Description
[0018] Figure 1This is a three-dimensional structural diagram of a wax mold proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the demolding structure of a wax mold proposed in this utility model;
[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 This is a schematic diagram of the upper mold structure of a wax mold proposed in this utility model;
[0022] Figure 5 for Figure 4 Enlarged diagram of point B in the middle.
[0023] Legend:
[0024] 1. Base; 2. Lower mold; 3. Upper mold; 4. Wax injection hole; 5. Inclined block; 6. Handle; 7. Moving block; 8. Connecting rod; 9. Detachable module; 10. Spring 1; 11. Slide rod; 12. Spring 2; 13. Locking block; 14. Spring 3; 15. Hand buckle; 16. Groove; 17. Protruding post; 18. Eccentric wheel; 19. Push rod; 20. Ball bearing; 21. Spring 4. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figures 1-3This utility model provides an embodiment of a wax mold, including a base 1. A demolding assembly is installed inside the base 1, allowing for effortless demolding via the sliding of an inclined block 5. A lower mold 2 is fixedly connected to the upper surface of the base 1, and an upper mold 3 is positioned above the lower mold 2. Together, they form a closed cavity to ensure the accuracy of the wax mold forming. A connecting assembly is installed inside the upper mold 3 to ensure reliable locking between the upper mold 3 and the lower mold 2. A wax injection hole 4 is provided on the upper surface of the upper mold 3 for injecting molten wax. A handle 15 is provided on the outer wall of the upper mold 3 for easy gripping and demolding by the operator. The base 1 includes a demolding module 9, which is located inside the base 1. It directly pushes the wax model to achieve non-destructive demolding. An inclined block 5 is slidably connected to the inner wall of the base 1; its inclined surface structure converts horizontal displacement into vertical lifting force. A moving block 7 is slidably connected to the outer wall of the inclined block 5, generating upward motion when sliding along the inclined surface. A connecting rod 8 is fixedly connected to the upper surface of the moving block 7, transmitting the lifting force to the demolding module 9. The upper surface of the connecting rod 8 is fixedly connected to the lower surface of the demolding module 9, forming a linked ejection mechanism. The outer wall of the demolding module 9 is slidably connected to the inner wall of the lower mold 2, ensuring a smooth and unbiased ejection process. An internal locking assembly is provided. A spring 10 is fitted on the outer wall of the connecting rod 8, which automatically resets the demolding module 9 after demolding. One end of the spring 10 is fixedly connected to the upper surface of the moving block 7, and the other end is fixedly connected to the inner wall of the lower mold 2, providing continuous reset elasticity. A handle 6 is fixedly connected to one side of the outer wall of the inclined block 5, which facilitates manual pulling of the inclined block 5 to move it horizontally. A slide rod 11 is fixedly connected to the lower surface of the inclined block 5, which restricts the inclined block 5 to slide only in the horizontal direction. A spring 2 12 is fitted on the outer wall of the slide rod 11, which drives the inclined block 5 to reset to the initial position. One end of the spring 2 12 is fixedly connected to... On the outer wall of the inclined block 5, the other end of the second spring 12 is fixedly connected to the inner wall of the base 1 to prepare for continuous demolding operation. The locking component includes a locking block 13, the outer wall of which is slidably connected to the inner wall of the base 1. The locking block 13 locks the inclined block 5 to prevent accidental action. The locking block 13 is set inside the inclined block 5 and achieves a self-locking function through the locking structure. The outer wall of the locking block 13 is fitted with a third spring 14, which retracts and unlocks the inclined block 5 when pressed. One end of the third spring 14 is fixedly connected to the lower surface of the locking block 13, and the other end of the third spring 14 is fixedly connected to the inner wall of the base 1. After demolding, the locking block 13 is reset to the locked state.
[0027] Reference Figures 1-5The connecting component includes a protrusion 17, the upper surface of which is fixedly connected to the lower surface of the upper mold 3. It is inserted into the groove 16 to achieve initial mold positioning. The protrusion 17 is equipped with a ball bearing 20 to reduce the frictional resistance of the ejector rod 19. The ejector rod 19 is slidably connected to the inner wall of the upper mold 3 and is driven by the eccentric wheel 18 to compress the ball bearing 20. The eccentric wheel 18 is rotatably connected to the inner wall of the upper mold 3 and pushes the ejector rod 19 to move linearly when rotating. The upper surface of the lower mold 2 has a groove 16, which cooperates with the protrusion 17 to form a positioning structure. The protrusion 17 is set inside the groove 16 to ensure accurate alignment between the upper mold 3 and the lower mold 2. The outer wall of the ejector rod 19 is fitted with a spring 21, which automatically rebounds the ejector rod 19 when unlocking. One end of the spring 21 is fixedly connected to the outer wall of the ejector rod 19, and the other end of the spring 21 is fixedly connected to the inner wall of the upper mold 3 to maintain the connecting component in a normally open state for easy mold separation.
[0028] Working principle: When using this type of wax mold, first place the upper mold 3 on the lower mold 2, so that the protrusion 17 is inserted into the groove 16 on the lower mold 2. Then rotate the eccentric wheel 18. The rotation of the eccentric wheel 18 drives the ejector rod 19 to slide in the upper mold 3. The ejector rod 19 and the ball bearing 20 cooperate with each other to make the protrusion 17 and the groove 16 tightly connected, realizing a stable connection between the upper mold 3 and the lower mold 2. At this time, the spring 4 21 is in a compressed state, providing elastic support for the connecting components. Next, inject wax through the wax injection hole 4. The wax cools and solidifies in the mold cavity. When demolding, first hold the handle 15 and lift. Lift mold 3, then press the locking block 13 to unlock the inclined block 5. The inclined block 5 slides inside the base 1. The movement of the inclined block 5 causes the moving block 7 to slide upward along the inclined block 5, which in turn drives the demolding module 9 to rise through the connecting rod 8. The outer wall of the demolding module 9 fits tightly with the inner wall of the lower mold 2, pushing out the formed wax mold and completing the demolding process. After demolding, pull the handle 6, the second spring 12 is compressed, the slide rod 11 moves under the action of the inclined block 5, the third spring 14 is compressed and reset, the locking block 13 slides inside the base 1 and plays a limiting role inside the inclined block 5, the first spring 10 resets, and drives the moving block 7 and the demolding module 9 to move downward.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wax pattern mold comprising a base (1), characterized in that: The base (1) is provided with a demolding component inside. A lower mold (2) is fixedly connected to the upper surface of the base (1). An upper mold (3) is provided above the lower mold (2). A connecting component is provided inside the upper mold (3). A wax injection hole (4) is opened on the upper surface of the upper mold (3). A hand buckle (15) is opened on the outer wall of the upper mold (3). The demolding assembly includes a demolding module (9), which is disposed inside the base (1). An inclined block (5) is slidably connected to the inner wall of the base (1), and a moving block (7) is slidably connected to the outer wall of the inclined block (5). A connecting rod (8) is fixedly connected to the upper surface of the moving block (7), and the upper surface of the connecting rod (8) is fixedly connected to the lower surface of the demolding module (9). The outer wall of the demolding module (9) is slidably connected to the inner wall of the lower mold (2). A locking assembly is provided inside the base (1).
2. The wax mold according to claim 1, characterized in that: The connecting assembly includes a protrusion (17), the upper surface of which is fixedly connected to the lower surface of the upper mold (3), a ball bearing (20) is provided inside the protrusion (17), a push rod (19) is slidably connected to the inner wall of the upper mold (3), an eccentric wheel (18) is rotatably connected to the inner wall of the upper mold (3), and a groove (16) is provided on the upper surface of the lower mold (2), with the protrusion (17) located inside the groove (16).
3. A wax mold according to claim 2, characterized in that: The outer wall of the push rod (19) is fitted with a spring four (21), one end of the spring four (21) is fixedly connected to the outer wall of the push rod (19), and the other end of the spring four (21) is fixedly connected to the inner wall of the upper mold (3).
4. A wax mold according to claim 1, characterized in that: A spring (10) is sleeved on the outer wall of the connecting rod (8). One end of the spring (10) is fixedly connected to the upper surface of the moving block (7), and the other end of the spring (10) is fixedly connected to the inner wall of the lower mold (2).
5. A wax mold according to claim 1, characterized in that: A handle (6) is fixedly connected to one side of the outer wall of the inclined block (5), and a slide rod (11) is fixedly connected to the lower surface of the inclined block (5).
6. A wax mold according to claim 5, characterized in that: The outer wall of the slide rod (11) is fitted with a second spring (12), one end of the second spring (12) is fixedly connected to the outer wall of the inclined block (5), and the other end of the second spring (12) is fixedly connected to the inner wall of the base (1).
7. A wax mold according to claim 1, characterized in that: The locking assembly includes a locking block (13), the outer wall of which is slidably connected to the inner wall of the base (1), and the locking block (13) is disposed inside the inclined block (5).
8. A wax mold according to claim 7, characterized in that: The outer wall of the card block (13) is fitted with a spring three (14), one end of the spring three (14) is fixedly connected to the lower surface of the card block (13), and the other end of the spring three (14) is fixedly connected to the inner wall of the base (1).