A multi-point support device for wax pattern cleaning

Abstract

The application discloses a kind of multi-point support devices for wax mould cleaning, it is related to wax mould cleaning support technical field, including cleaning tank, control panel is fixedly installed in cleaning tank outer side, cleaning cavity is opened in the upper end of the inner surface of cleaning tank, water cavity is opened in the lower end of the inner surface of cleaning tank, support table is fixedly connected and is stretched out in the adjacent side wall of cleaning cavity and water cavity and is penetrated, multi-point support assembly is arranged on the support table, the support table is located in the adjacent side wall center of cleaning cavity and water cavity, the support pipe of greater pressure is compressed spring and is slid down along the guide hole of support table, the support pipe of smaller pressure is kept higher position under the action of spring elasticity, so that the top of all support pipe can be closely combined with wax mould bottom surface, and form multi-point adaptive support array;And the multi-point support, wax mould can be effectively positioned and fixed, effectively limit the displacement generated when cleaning wax mould.

Description

Technical Field

[0001] This invention relates to the field of wax mold cleaning support technology, specifically a multi-point support device for wax mold cleaning. Background Technology

[0002] In the investment casting process, the surface quality of the wax pattern directly determines the dimensional accuracy and surface finish of the final casting. After wax injection, the surface of the wax pattern is usually covered with impurities such as wax chips, dust, and release agent residue. These must be removed through a cleaning process before it can proceed to the next assembly and welding shell-making process.

[0003] Patent publication number CN223145455U discloses a wax model module cleaning device, including a cleaning tank, an ejector mechanism located inside the cleaning tank, a wax model fixing support frame, and a mixer. The wax model fixing support frame is horizontally fixed above the ejector mechanism, which drives the wax model fixing support frame to move up and down. The bottom tank is located at the bottom of the cleaning tank, and the mixer passes through the bottom tank so that its top is positioned above the bottom tank. The bottom tank is connected to a drainage system for discharging cleaning fluid. By fixing and arranging the modules, collisions and damage / deformation between modules are avoided; the automatic lifting and lowering of the module support frame reduces contamination of the cleaning fluid by foreign objects and increases the number of uses. Although the aforementioned patent applications also involve fixing the wax model, it is only done through a flat support plate. This fixing method is poorly adaptable to wax models with complex curved surfaces. The irregular curved surface of the bottom of the wax model is difficult to fully fit with the fixed support surface, which can easily cause local stress concentration, leading to deformation, indentation, or even cracking of the wax model. At the same time, the wax model is generally soft, and the rigid contact between the hard support end and the soft wax model surface can easily cause surface scratches. Under the impact of high-pressure water flow, the wax model is also prone to slippage and tipping, which seriously affects the cleaning quality and production efficiency, and significantly increases the scrap rate and production cost of precision wax models.

[0004] Therefore, the present invention proposes a multi-point support device for cleaning wax molds. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-point support device for cleaning wax molds, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-point support device for cleaning wax molds, comprising a cleaning box, a control panel fixedly installed on the outside of the cleaning box, a cleaning cavity opened at the upper end of the inner surface of the cleaning box, a water cavity opened at the lower end of the inner surface of the cleaning box, a support platform extending through and fixedly connected to the adjacent side walls of the cleaning cavity and the water cavity, a multi-point support assembly provided on the support platform, the support platform being located at the center of the adjacent side walls of the cleaning cavity and the water cavity, and multiple water passage holes opened on the adjacent side walls of the cleaning cavity and the water cavity, the multiple water passage holes being arranged around the support platform, and a slope provided around the perimeter of the support platform; Preferably, the multi-point support assembly includes multiple support tubes arranged in an equally spaced array on a support platform. Each support tube extends through the support platform and is slidably and sealed to it. A baffle is fixedly connected inside the support tube. A venting tube extends through the baffle and is slidably and sealed to it. The lower end of the venting tube is fixedly connected to a coarse venting tube. A spring is fitted at the bottom of the venting tube. The upper end of the spring is fixedly connected to the baffle, and the lower end of the spring is fixedly connected to the coarse venting tube. A horizontal box is fixedly connected to the bottom of the multiple coarse venting tubes.

[0007] Preferably, the support tube includes a tube body and a support cap, the support cap being threaded onto the tube body, and the upper end of the support cap being hemispherical.

[0008] Preferably, the upper hemispherical end of the support cap is provided with a hemispherical groove, and a rubber ball sleeve is fixedly fitted onto the hemispherical groove. The rubber ball sleeve is made of rubber.

[0009] Preferably, the horizontal box has multiple central holes, each central hole is connected to a corresponding air passage pipe, a corner pipe is connected through and fixedly connected to one side wall of the horizontal box, a telescopic pipe is fixedly connected to the corner pipe, the telescopic pipe is telescopic, a first support plate is fixedly connected to one side of the cleaning box, an air pump is fixedly installed on the first support plate, the end of the telescopic pipe away from the corner pipe is fixedly connected to the air pump, and multiple outlet holes are opened at the top of the support pipe, the outlet holes are inclined upward.

[0010] Preferably, multiple guide blocks are fixedly connected to the top of the inner surface of the transverse box. Each guide block is located between the outlets of two adjacent central holes. A guide plate is fixedly connected to the bottom of each guide block. The bottoms of the multiple guide plates gradually increase in the direction of the air pump.

[0011] Preferably, a protective box is fixedly installed at the center of the bottom of the support platform. The protective box has heat dissipation holes on its side wall. An electric cylinder is fixedly installed inside the protective box. A control rod is fixedly installed on the electric cylinder. The upper end of the control rod extends through the support platform and is slidably connected to the support platform. One end of the control rod that extends into the support platform is fixedly connected to the bottom of the horizontal box.

[0012] Preferably, each support tube has a retaining ring fixedly connected to its lower end, and the upper end of the air passage tube extends through and is fixedly connected to a ring.

[0013] Preferably, a second support plate is fixedly connected to the outer wall of the cleaning tank, a circulating water pump is fixedly installed on the second support plate, a connecting pipe is fixedly connected to the upper end of the circulating water pump, a sprayer is fixedly installed at the top of the cleaning chamber, the connecting pipe extends into the cleaning chamber and is fixedly connected to the cleaning chamber, and an inlet pipe is fixedly connected to the circulating water pump, the inlet pipe extends into the water chamber and is fixedly connected to the water chamber.

[0014] Preferably, the bottom of the water chamber is inclined toward the water inlet pipe, and a filter plate is fixedly connected to the bottom of the water chamber. The filter plate is located on the side close to the water inlet pipe and is inclined.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention places the wax model to be cleaned on a multi-point support assembly above a support platform. The wax model is pressed against the top of multiple support tubes by its own weight. Since the wax model is usually a complex curved surface structure, the pressure on the support tubes at different positions is different. The support tube with greater pressure compresses the spring downward and slides downward along the guide hole of the support platform, while the support tube with less pressure is kept at a higher position under the elastic force of the spring. This allows the top of all support tubes to fit tightly against the bottom surface of the wax model, forming a multi-point adaptive support array. Moreover, this multi-point support can effectively limit and fix the wax model, effectively restricting the displacement of the wax model during cleaning. Using this method, the height of each support point can be automatically adjusted according to any curved surface contour of the bottom of the wax model, realizing full-point fitting support for irregular wax models. This avoids the local stress concentration caused by traditional single-point or three-point support, effectively preventing the wax model from deforming, cracking or tipping over due to uneven force during cleaning, and greatly improving the clamping stability and finished product qualification rate when cleaning complex-shaped wax models. 2. The present invention utilizes a hemispherical design at the upper end of the support cap to create point contact or small-area surface contact between the top of the support tube and the bottom surface of the wax model. This design adapts to various angles of the wax model's bottom surface, ensuring a tight fit. Furthermore, the rubber ball sleeve fixedly fitted within the hemispherical groove at the top of the hemispherical cap undergoes elastic deformation during support contact, further increasing the contact area with the wax model surface, dispersing contact stress, and preventing the hard support end from causing indentations or scratches on the soft surface of the wax model. Additionally, the high coefficient of friction of the rubber ball sleeve increases the static friction between the support end and the wax model, preventing lateral slippage or rotation of the wax model under high-pressure water flow, ensuring the stability of the wax model's position during cleaning, and guaranteeing the uniformity and consistency of the cleaning effect. 3. In this invention, after the electric cylinder is started, the horizontal box is driven to move up and down vertically via the control lever. The horizontal box simultaneously drives multiple air-permeable thick pipes fixedly connected to it to move up and down. The air-permeable thick pipes further drive the support pipes to rise and fall as a whole via springs and baffles, thereby achieving overall synchronous adjustment of the support height of the top of all support pipes. Using this method, the placement height of the wax model on the support platform can be flexibly adjusted according to the size of different batches of wax models and the requirements of the cleaning process, so as to match the optimal spraying distance of the sprayer and ensure the optimal matching of cleaning water pressure and coverage. At the same time, the overall height adjustment combined with the independent adaptive extension and retraction function of each support pipe constitutes a two-level height adjustment mechanism of "coarse adjustment + fine adjustment", which not only ensures the benchmark consistency of the overall support plane, but also realizes the adaptive fitting of local curved surfaces. Under the synergistic effect of the two, the support accuracy and adjustment efficiency are improved simultaneously. 4. This invention controls the up and down movement of all the support tubes, thereby causing the wax model above to move up and down. When spraying and cleaning the wax model, it can produce a pulse-like impact effect. Compared with a constant water flow, it is easier to cause the dirt on the surface of the wax model to fatigue and fall off, so as to enhance the cleaning effect of the wax model. 5. After the air pump is started, compressed air enters the horizontal box through the telescopic pipe and the corner pipe. The guide block and air guide plate in the horizontal box divert and guide the incoming airflow. The bottom of the multiple air guide plates gradually rises in the direction towards the air pump, so that the airflow is continuously blocked by each air guide plate as it flows in the horizontal box, and is forced to pass through the corresponding central hole to ensure that the air pressure at the outlet of each central hole is basically uniform. The uniform air pressure is then transported upward through each air passage thick pipe and air passage thin pipe to the outlet hole at the top of the support pipe, and sprayed outward from the outlet hole. The outlet hole is set at an angle upward, so that the inclined airflow is sprayed out to blow and clean the wax mold on it, and forms a pulsed air-liquid counter-fluid with the downward sprayed water, which can produce a better spray cleaning effect. 6. In this invention, after the wax model is cleaned, the airflow blowing out from the outlet at an angle upward can effectively blow away the water droplets and water accumulation on the surface of the wax model, and can initially dry the wax model. Then, the staff can pick up the wax model and adjust its position to achieve a better drying effect. 7. The design of the support cap and the tube body threaded connection in this invention is to facilitate the disassembly and replacement of the support cap. For wax models of different sizes and dimensions, the support cap of the corresponding height and specification can be replaced to provide better multi-point support for the wax model. 8. In this invention, the retaining ring at the bottom of the support tube is limited when it moves upward to the top of the support platform. The design of the retaining ring can effectively prevent the support tube from falling off the support platform and causing the device to malfunction. 9. In this invention, after the support tube moves to its maximum height, the support cap is unscrewed and the electric cylinder is started. At this time, the support tube cannot move, while the air passage tube and the air passage thick tube overcome the spring force and continue to drive multiple support tubes to move upward, so that the upper end of the air passage tube moves to the upper end of the support tube body. The circular design allows water droplets, impurities, etc. inside the support tube to be pushed upward to the upper end of the tube body during the upward movement of the air passage tube. This facilitates the cleaning of the inside of the support tube and makes it easier to perform regular maintenance. 10. In this invention, during the cleaning operation, the circulating water pump is started, and the cleaning water stored in the water chamber is drawn out through the inlet pipe and then transported to the sprayer at the top of the cleaning chamber through the connecting pipe. The sprayer sprays downward to form a high-pressure water curtain or water mist, which washes the surface of the wax mold supported below in all directions. The wastewater after rinsing carries the impurities and wax debris that have fallen off the surface of the wax mold and falls downward. It is guided by the slope around the perimeter of the support platform and flows back into the water chamber below through multiple water passages around the support platform, realizing the recycling of cleaning water. The filter plate at the bottom of the water chamber is inclined to filter the returning wastewater, trapping solid impurities in the water above the filter plate. The filtered clean water flows to the bottom of the water chamber and is then drawn out by the circulating water pump to continue to participate in the cleaning cycle, forming a closed-loop water system, which greatly reduces the consumption of cleaning water and reduces cleaning costs. 11. The present invention uses a design where the bottom of the water chamber is tilted towards the inlet pipe, so that the filtered clean water automatically collects at the inlet of the inlet pipe under the action of gravity, ensuring that the circulating water pump can always draw in a sufficient amount of water and avoid the pump running dry; at the same time, the tilted filter plate allows the trapped solid impurities to slide down the inclined surface of the filter plate under the action of water flow and their own gravity, and accumulate at the lower end of the filter plate, which is convenient for centralized cleaning later, prevents large-area clogging of the filter plate surface, and maintains a long-term stable filtration flow. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention; Figure 4 This is a schematic diagram of the support platform of the present invention; Figure 5 This is an overall view of the support tube of the present invention; Figure 6 This is a partial cross-sectional view of the support platform of the present invention; Figure 7 For the present invention Figure 6 A magnified view of a section at point A in the middle; Figure 8 For the present invention Figure 6 A magnified view of a section at point B in the middle; Figure 9 For the present invention Figure 2 A magnified view of a section at point C.

[0017] In the picture: 1. Cleaning tank; 11. Control panel; 12. Cleaning chamber; 13. Water chamber; 14. Support platform; 15. Cleaning door; 16. Water door; 17. Water passage hole; 2. Support pipe; 21. Baffle plate; 22. Fine air passage pipe; 23. Coarse air passage pipe; 24. Spring; 25. Horizontal box; 3. Pipe body; 31. Support cap; 4. Hemispherical groove; 41. Rubber ball sleeve; 5. Center hole; 51. Corner pipe; 52. Telescopic pipe; 53. Air pump; 54. First support plate; 55. Outlet hole; 6. Guide block; 61. Air guide plate; 7. Protective box; 71. Heat dissipation hole; 72. Electric cylinder; 73. Control rod; 8. Retaining ring; 81. Circular ring; 9. Circulating water pump; 91. Second support plate; 92. Connecting pipe; 93. Sprayer; 94. Water inlet pipe; 100. Filter plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 9 The present invention provides a technical solution: A multi-point support device for cleaning wax models includes a cleaning tank 1. A control panel 11 is fixedly installed on the outside of the cleaning tank 1. A cleaning cavity 12 is formed at the upper end of the inner surface of the cleaning tank 1, and a water cavity 13 is formed at the lower end of the inner surface of the cleaning tank 1. A support platform 14 extends through and is fixedly connected to the adjacent side walls of the cleaning cavity 12 and the water cavity 13. A multi-point support assembly is provided on the support platform 14. The support platform 14 is located at the center of the adjacent side walls of the cleaning cavity 12 and the water cavity 13. A plurality of water passage holes 17 are formed on the adjacent side walls of the cleaning cavity 12 and the water cavity 13. The plurality of water passage holes 17 are arranged around the support platform 14. A slope is provided around the perimeter of the support platform 14.

[0020] As an embodiment of the present invention, as shown in the figure, the multi-point support assembly includes a support tube 2, and there are multiple support tubes 2. The multiple support tubes 2 are arrayed at equal intervals on the support platform 14, and the support tubes 2 extend through into the support platform 14 and are sealed and slidably connected to the support platform 14. A baffle 21 is fixedly connected inside the support tube 2. A venting thin tube 22 extends through the baffle 21 and is sealed and slidably connected to it. The lower end of the venting thin tube 22 is fixedly connected to a venting thick tube 23. A spring 24 is sleeved at the bottom of the venting thin tube 22. The upper end of the spring 24 is fixedly connected to the baffle 21, and the lower end of the spring 24 is fixedly connected to the venting thick tube 23. A horizontal box 25 is fixedly connected to the bottom of the multiple venting thick tubes 23.

[0021] During operation, the wax model to be cleaned is placed on the multi-point support assembly above the support platform 14. The wax model is pressed against the top of multiple support tubes 2 by its own weight. Since the shape of the wax model is usually a complex curved structure, the pressure on the support tubes 2 at different positions is different. The support tube 2 with greater pressure compresses the spring 24 downward and slides downward along the guide hole of the support platform 14, while the support tube 2 with less pressure is kept at a higher position under the elastic force of the spring 24. This allows the top of all support tubes 2 to fit tightly against the bottom surface of the wax model, forming a multi-point adaptive support array. Moreover, this multi-point support can effectively limit and fix the wax model, effectively restricting the displacement of the wax model during cleaning. Using this method, the height of each support point can be automatically adjusted according to any curved surface contour of the bottom of the wax model, realizing full-point fitting support for irregular wax models. This avoids the local stress concentration caused by traditional single-point or three-point support, effectively preventing the wax model from deforming, cracking or tipping over due to uneven force during cleaning, and greatly improving the clamping stability and finished product qualification rate when cleaning complex-shaped wax models. Both the support platform 14 and the horizontal box 25 are equipped with corresponding doors. By opening the water door 16 and the cleaning door 15, and then opening the doors of the support platform 14 and the horizontal box 25, maintenance and repair of the support platform 14 and the horizontal box 25 can be carried out.

[0022] As an embodiment of the present invention, as shown in the figure, the support tube 2 includes a tube body 3 and a support cap 31. The support cap 31 is threaded onto the tube body 3, and the upper end of the support cap 31 is hemispherical.

[0023] During operation, the threaded connection between the support cap 31 and the tube body 3 is designed to facilitate the disassembly and replacement of the support cap 31. For wax molds of different sizes and dimensions, the support cap 31 of the corresponding height and specifications can be replaced to provide better multi-point support for the wax mold.

[0024] As an embodiment of the present invention, as shown in the figure, a hemispherical groove 4 is provided at the upper hemispherical end of the support cap 31, and a rubber ball sleeve 41 is fixedly sleeved on the hemispherical groove 4. The rubber ball sleeve 41 is made of rubber.

[0025] During operation, the hemispherical design of the upper end of the support cap 31 allows the top of the support tube 2 to form point contact or small-area surface contact with the bottom surface of the wax model. On the one hand, it can adapt to the inclined curved surface of the bottom surface of the wax model at various angles, ensuring tight contact and fit. On the other hand, the rubber ball sleeve 41 fixedly fitted in the hemispherical groove 4 at the top of the hemispherical cap can generate elastic deformation when the support contacts, further increasing the contact area with the surface of the wax model, dispersing contact stress, and preventing the hard support end from causing indentations or scratches on the soft surface of the wax model. In addition, the high coefficient of friction of the rubber ball sleeve 41 can increase the static friction between the support end and the wax model, preventing the wax model from sliding or rotating laterally under the impact of high-pressure water flow, ensuring the stability of the wax model position during the cleaning process, and ensuring the uniformity and consistency of the cleaning effect.

[0026] As an embodiment of the present invention, as shown in the figure, a plurality of central holes 5 are provided in the horizontal box 25, and each central hole 5 is connected to a corresponding air passage pipe 23. A corner pipe 51 is passed through and fixedly connected to one side wall of the horizontal box 25. A telescopic pipe 52 is fixedly connected to the corner pipe 51. The telescopic pipe 52 is telescopic. A first support plate 54 is fixedly connected to one side of the cleaning box 1. An air pump 53 is fixedly installed on the first support plate 54. The end of the telescopic pipe 52 away from the corner pipe 51 is fixedly connected to the air pump 53. A plurality of outlet holes 55 are provided at the top of the support pipe 2. The outlet holes 55 are inclined upward.

[0027] Multiple guide blocks 6 are fixedly connected to the top of the inner surface of the horizontal box 25. Each guide block 6 is located between the outlets of two adjacent central holes 5. Each guide block 6 has a guide plate 61 fixedly connected to its bottom. The bottoms of the multiple guide plates 61 gradually increase in height towards the air pump 53.

[0028] During operation, after the air pump 53 is started, compressed air enters the horizontal box 25 through the telescopic pipe 52 and the corner pipe 51. The guide block 6 and the air guide plate 61 inside the horizontal box 25 divert and guide the incoming airflow. The bottom of the multiple air guide plates 61 gradually rises in the direction towards the air pump 53, so that the airflow is continuously blocked by each air guide plate 61 as it flows in the horizontal box 25, and is forced to pass through the corresponding central hole 5, so as to ensure that the air pressure at the outlet of each central hole 5 is basically uniform. The uniform air pressure is then transported upward through each air passage thick pipe 23 and air passage thin pipe 22 to the outlet 55 at the top of the support pipe 2, and sprayed outward from the outlet 55. The outlet 55 is set at an upward angle, so that the inclined airflow is sprayed out to blow and clean the wax mold on it, and forms a pulsed air-liquid counter-fluid with the downward sprayed water, which can produce a better spray cleaning effect. After the wax model is cleaned, the airflow blowing out from the outlet 55 at an angle upward can effectively blow away the water droplets and water accumulation on the surface of the wax model, and can initially dry the wax model. Then the staff can pick up the wax model and adjust its position to achieve a better drying effect. The airflow ejected from the outlet 55 can effectively prevent spray water from entering the support pipe 2 through the outlet 55.

[0029] As an embodiment of the present invention, as shown in the figure, a protective box 7 is fixedly installed at the bottom center of the support platform 14. A heat dissipation hole 71 is opened on the side wall of the protective box 7. An electric cylinder 72 is fixedly installed inside the protective box 7. A control rod 73 is fixedly installed on the electric cylinder 72. The upper end of the control rod 73 extends through the support platform 14 and is slidably connected to the support platform 14. One end of the control rod 73 that extends into the support platform 14 is fixedly connected to the bottom of the horizontal box 25.

[0030] During operation, after the electric cylinder 72 is started, the horizontal box 25 is driven to move up and down vertically via the control lever 73. The horizontal box 25 synchronously drives the multiple air passage pipes 23 fixedly connected to it to move up and down. The air passage pipes 23 further drive the support pipes 2 to rise and fall as a whole via the spring 24 and the baffle 21, thereby realizing the overall synchronous adjustment of the support height of the top of all support pipes 2. In this way, the placement height of the wax mold on the support platform 14 can be flexibly adjusted according to the size of different batches of wax molds and the cleaning process requirements to match the optimal spray distance and ensure the optimal matching of cleaning water pressure and coverage. At the same time, the overall height adjustment combined with the independent adaptive extension and retraction function of each support pipe 2 constitutes a two-level height adjustment mechanism of "coarse adjustment + fine adjustment", which not only ensures the benchmark consistency of the overall support plane, but also realizes the adaptive fitting of local curved surfaces. Under the synergistic effect of the two, the support accuracy and adjustment efficiency are improved simultaneously. On the other hand, by controlling all the support pipes 2 to move up and down, the wax model on top can move up and down. When spraying and cleaning the wax model, it can produce a pulse-like impact effect. Compared with a constant water flow, it is easier to cause the dirt on the surface of the wax model to fatigue and fall off, so as to enhance the cleaning effect of the wax model.

[0031] As an embodiment of the present invention, as shown in the figure, a retaining ring 8 is fixedly connected to the lower end of each support tube 2, and a ring 81 is fixedly connected to the upper end of the air passage tube 22.

[0032] During operation, the retaining ring 8 at the bottom of the support tube 2 moves upward to the top of the support platform 14 and is limited by it. The design of the retaining ring 8 can effectively prevent the support tube 2 from falling out of the support platform 14 as a whole and causing the device to malfunction. After the support tube 2 moves to its maximum height, unscrew the support cap 31 and then start the electric cylinder 72. At this time, the support tube 2 cannot move, but the air passage thin tube 22 and air passage thick tube 23 overcome the elastic force of the spring 24 and continue to drive multiple support tubes 2 to move upward, so that the upper end of the air passage thin tube 22 moves to the upper end of the tube body 3 of the support tube 2. The design of the ring 81 makes it possible to push water droplets, impurities, etc. in the tube body 3 of the support tube 2 upward to the upper end of the tube body 3 during the upward movement of the air passage thin tube 22. This facilitates the cleaning of the inside of the support tube 2 and makes it easier to perform regular maintenance.

[0033] As an embodiment of the present invention, as shown in the figure, a second support plate 91 is fixedly connected to the outer wall of the cleaning tank 1, a circulating water pump 9 is fixedly installed on the second support plate 91, a connecting pipe 92 is fixedly connected to the upper end of the circulating water pump 9, a sprayer 93 is fixedly installed on the top of the cleaning chamber 12, the connecting pipe 92 extends into the cleaning chamber 12 and is fixedly connected to the cleaning chamber 12, and a water inlet pipe 94 is fixedly connected to the circulating water pump 9, the water inlet pipe 94 extends into the water chamber 13 and is fixedly connected to the water chamber 13.

[0034] During operation, when cleaning is being performed, the circulating water pump 9 starts, drawing the cleaning water stored in the water chamber 13 through the inlet pipe 94 and then transporting it through the connecting pipe 92 to the sprayer 93 at the top of the cleaning chamber 12. The sprayer 93 sprays downwards to form a high-pressure water curtain or water mist, thoroughly rinsing the surface of the wax mold supported below. The rinsing wastewater, carrying impurities and wax debris that have detached from the wax mold surface, falls downwards and is guided by the slope around the perimeter of the support platform 14. It then flows back into the water chamber 13 below through multiple water passages 17 around the support platform 14, achieving the recycling of cleaning water. The filter plate 100, which is inclined at the bottom of the water chamber 13, filters the returning wastewater, trapping solid impurities in the water above the filter plate 100. The filtered clean water flows to the bottom of the water chamber 13 and is then drawn by the circulating water pump 9 to continue participating in the cleaning cycle, forming a closed-loop water system that significantly reduces cleaning water consumption and lowers cleaning costs.

[0035] As an embodiment of the present invention, as shown in the figure, the bottom of the water cavity 13 is inclined toward the water inlet pipe 94, and a filter plate 100 is fixedly connected to the bottom of the water cavity 13. The filter plate 100 is located on the side close to the water inlet pipe 94 and is inclined.

[0036] During operation, the bottom of the water chamber 13 is tilted towards the inlet pipe 94, so that the filtered clean water automatically collects at the inlet of the inlet pipe 94 under the action of gravity, ensuring that the circulating water pump 9 can always draw in a sufficient amount of water and avoid the pump running dry. At the same time, the tilted filter plate 100 allows the trapped solid impurities to slide down the inclined surface of the filter plate 100 under the action of water flow and its own gravity, and accumulate at the lower end of the filter plate 100, which is convenient for centralized cleaning later, prevents large-area clogging of the surface of the filter plate 100, and maintains a long-term stable filtration flow.

[0037] Working principle: During operation, the wax model to be cleaned is placed on the multi-point support assembly above the support platform 14. The wax model is pressed against the tops of multiple support tubes 2 by its own weight. Since the wax model is usually a complex curved structure, the pressure on the support tubes 2 at different positions is different. The support tube 2 under greater pressure compresses the spring 24 downward and slides downward along the guide hole of the support platform 14, while the support tube 2 under less pressure is kept at a higher position under the elastic force of the spring 24. This ensures that the tops of all support tubes 2 can be tightly fitted to the bottom surface of the wax model, forming a... It forms a multi-point adaptive support array; and this multi-point support can effectively limit and fix the wax model, effectively restricting the displacement of the wax model during cleaning. Using this method, the height of each support point can be automatically adjusted according to any curved surface contour of the bottom of the wax model, realizing full-point fitting support for irregular wax models, avoiding local stress concentration caused by traditional single-point or three-point support, effectively preventing the wax model from deforming, cracking or tipping due to uneven force during cleaning, and greatly improving the clamping stability and finished product qualification rate of complex-shaped wax models during cleaning. The hemispherical design at the upper end of the support cap 31 allows the top of the support tube 2 to form point contact or small-area surface contact with the bottom surface of the wax model. On the one hand, it can adapt to the inclined curved surface of the bottom surface of the wax model at various angles, ensuring tight contact and fit. On the other hand, the rubber ball sleeve 41 fixedly fitted in the hemispherical groove 4 at the top of the hemispherical cap can generate elastic deformation when the support contacts, further increasing the contact area with the surface of the wax model, dispersing contact stress, and avoiding the hard support end from causing indentations or scratches on the soft surface of the wax model. In addition, the high coefficient of friction of the rubber ball sleeve 41 can increase the static friction between the support end and the wax model, preventing the wax model from laterally sliding or rotating under the impact of high-pressure water flow, ensuring the stability of the wax model position during the cleaning process, and ensuring the uniformity and consistency of the cleaning effect. After the electric cylinder 72 is started, the horizontal box 25 is driven to move up and down vertically via the control lever 73. The horizontal box 25 synchronously drives the multiple air passage pipes 23 fixedly connected to it to move up and down. The air passage pipes 23 further drive the support pipes 2 to rise and fall as a whole via the spring 24 and the baffle 21, thereby realizing the overall synchronous adjustment of the support height of the top of all support pipes 2. In this way, the placement height of the wax mold on the support platform 14 can be flexibly adjusted according to the size of different batches of wax molds and the cleaning process requirements, so as to match the optimal spray distance of the sprayer 93 and ensure the optimal matching of cleaning water pressure and coverage. At the same time, the overall height adjustment combined with the independent adaptive extension and retraction function of each support pipe 2 constitutes a two-level height adjustment mechanism of "coarse adjustment + fine adjustment", which not only ensures the benchmark consistency of the overall support plane, but also realizes the adaptive fitting of local curved surfaces. Under the synergistic effect of the two, the support accuracy and adjustment efficiency are improved simultaneously. On the other hand, by controlling all the support pipes 2 to move up and down, the wax model on top can move up and down. When spraying and cleaning the wax model, it can produce a pulse-like impact effect. Compared with a constant water flow, it is easier to cause the dirt on the surface of the wax model to fatigue and fall off, so as to enhance the cleaning effect of the wax model. After the air pump 53 is started, compressed air enters the interior of the horizontal box 25 through the telescopic pipe 52 and the corner pipe 51. The guide block 6 and the air guide plate 61 inside the horizontal box 25 divert and guide the incoming airflow. The bottom of the multiple air guide plates 61 gradually rises in the direction towards the air pump 53, so that the airflow is continuously blocked by each air guide plate 61 as it flows in the horizontal box 25, and is forced to pass through the corresponding central hole 5, so as to ensure that the air pressure at the outlet of each central hole 5 is basically uniform. The uniform air pressure is then transported upward through each air passage thick pipe 23 and air passage thin pipe 22 to the outlet 55 at the top of the support pipe 2, and sprayed outward from the outlet 55. The outlet 55 is set at an angle upward, so that the angled airflow is sprayed out to blow and clean the wax mold on it, and forms a pulsed air-liquid counter-fluid with the downward sprayed water, which can produce a better spray cleaning effect. After the wax model is cleaned, the airflow blowing out from the outlet 55 at an angle upward can effectively blow away the water droplets and water accumulation on the surface of the wax model, and can initially dry the wax model. Then the staff can pick up the wax model and adjust its position to achieve a better drying effect. The airflow ejected from the outlet 55 can effectively prevent spray water from entering the support pipe 2 through the outlet 55; The threaded connection between the support cap 31 and the tube body 3 is designed to facilitate the disassembly and replacement of the support cap 31. For wax molds of different sizes and dimensions, the support cap 31 of the corresponding height and specifications can be replaced to provide better multi-point support for the wax mold. When the retaining ring 8 at the bottom of the support tube 2 moves upward to the top of the support platform 14, it is limited by the retaining ring 8. The design of the retaining ring 8 can effectively prevent the support tube 2 from falling out of the support platform 14 as a whole, which would cause the device to malfunction. After the support tube 2 moves to its maximum height, unscrew the support cap 31 and then start the electric cylinder 72. At this time, the support tube 2 cannot move, but the air passage thin tube 22 and air passage thick tube 23 overcome the elastic force of the spring 24 and continue to drive multiple support tubes 2 to move upward, so that the upper end of the air passage thin tube 22 moves to the upper end of the tube body 3 of the support tube 2. The design of the ring 81 makes it possible to push water droplets, impurities, etc. in the tube body 3 of the support tube 2 upward to the upper end of the tube body 3 during the upward movement of the air passage thin tube 22. This facilitates the cleaning of the inside of the support tube 2 and makes it easier to perform regular maintenance. Both the support platform 14 and the horizontal box 25 are equipped with corresponding boxes. By opening the water door 16 and the cleaning door 15, and then opening the boxes of the support platform 14 and the horizontal box 25, the support platform 14 and the horizontal box 25 can be repaired and maintained. During the cleaning operation, the circulating water pump 9 starts, drawing the cleaning water stored in the water chamber 13 through the inlet pipe 94 and then transporting it through the connecting pipe 92 to the sprayer 93 at the top of the cleaning chamber 12. The sprayer 93 sprays downward to form a high-pressure water curtain or water mist, rinsing the surface of the wax mold supported below in all directions. The rinsing wastewater, carrying impurities and wax debris that have fallen off the surface of the wax mold, falls downward and is guided by the slope around the support platform 14. It then flows back into the water chamber 13 below through multiple water passages 17 around the support platform 14, realizing the recycling of cleaning water. The filter plate 100, which is inclined at the bottom of the water chamber 13, filters the returning wastewater, trapping solid impurities in the water above the filter plate 100. The filtered clean water flows to the bottom of the water chamber 13 and is then drawn by the circulating water pump 9 to continue participating in the cleaning cycle, forming a closed-loop water system that significantly reduces the amount of cleaning water consumed and lowers the cleaning cost. The bottom of the water chamber 13 is inclined towards the inlet pipe 94, so that the filtered clean water automatically collects at the inlet of the inlet pipe 94 under the action of gravity, ensuring that the circulating water pump 9 can always draw in a sufficient amount of water and avoid the pump running dry; at the same time, the inclined filter plate 100 allows the intercepted solid impurities to slide down the inclined surface of the filter plate 100 under the action of water flow and its own gravity, and accumulate at the lower end of the filter plate 100, which is convenient for centralized cleaning later, prevents large-area clogging of the surface of the filter plate 100, and maintains a long-term stable filtration flow. In summary, this invention forms a multi-point adaptive support array through the cooperation of the support tube 2 and the spring 24, and achieves flexible fit by combining the support cap 31 and the rubber ball sleeve 41. The electric cylinder 72 drives the horizontal box 25 to drive the control rod 73 to achieve overall lifting and adjustment, forming a two-stage support mechanism of coarse adjustment and fine adjustment. At the same time, the air pump 53 sprays air upward from the outlet 55 after being evenly distributed by the air guide plate 61, and forms a pulse-type air-liquid counter-fluid cleaning with the sprayer 93 spraying downward, which has multiple effects of bottom backflushing, cavitation micro-jet and drying. The circulating water pump 9 and the filter plate 100 form a closed-loop water circuit, and the ring 81 moves upward with the air passage 22 to achieve self-cleaning of the inner wall of the support tube 2. This completes the stable support, efficient cleaning and convenient maintenance of the wax mold. It has high support accuracy, few cleaning dead corners and low operating costs, effectively solving the technical problems of unstable support, easy pressure damage and deformation and difficult bottom cleaning in traditional wax mold cleaning, and significantly improving the quality and production efficiency of precision wax mold cleaning.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-point support device for cleaning wax molds, comprising a cleaning tank (1), characterized in that: A control panel (11) is fixedly installed on the outside of the cleaning tank (1). A cleaning cavity (12) is opened at the upper end of the inner surface of the cleaning tank (1). A water cavity (13) is opened at the lower end of the inner surface of the cleaning tank (1). A support platform (14) extends through and is fixedly connected to the adjacent side walls of the cleaning cavity (12) and the water cavity (13). A multi-point support assembly is provided on the support platform (14). The support platform (14) is located at the center of the adjacent side walls of the cleaning cavity (12) and the water cavity (13). A plurality of water passage holes (17) are opened on the adjacent side walls of the cleaning cavity (12) and the water cavity (13). The plurality of water passage holes (17) are arranged around the support platform (14). A slope is provided around the perimeter of the support platform (14).

2. The multi-point support device for cleaning wax molds according to claim 1, characterized in that: The multi-point support assembly includes a support tube (2), and there are multiple support tubes (2). The multiple support tubes (2) are arrayed at equal intervals on the support platform (14). The support tubes (2) extend through into the support platform (14) and are sealed and slidably connected to the support platform (14). A baffle (21) is fixedly connected inside the support tube (2). An air passage tube (22) extends through the baffle (21) and is sealed and slidably connected to it. The lower end of the air passage tube (22) is fixedly connected to an air passage tube (23). A spring (24) is sleeved at the bottom of the air passage tube (22). The upper end of the spring (24) is fixedly connected to the baffle (21), and the lower end of the spring (24) is fixedly connected to the air passage tube (23). A horizontal box (25) is fixedly connected to the bottom of the multiple air passage tubes (23).

3. The multi-point support device for cleaning wax molds according to claim 2, characterized in that: The support tube (2) includes a tube body (3) and a support cap (31). The support cap (31) is threaded onto the tube body (3), and the upper end of the support cap (31) is hemispherical.

4. The multi-point support device for cleaning wax molds according to claim 3, characterized in that: The upper hemispherical end of the support cap (31) is provided with a hemispherical groove (4), and a rubber ball sleeve (41) is fixedly sleeved on the hemispherical groove (4). The rubber ball sleeve (41) is made of rubber.

5. A multi-point support device for cleaning wax molds according to claim 4, characterized in that: The horizontal box (25) has multiple central holes (5) inside, and each central hole (5) is connected to a corresponding air passage pipe (23). A corner pipe (51) is connected through and fixedly connected to one side wall of the horizontal box (25). A telescopic pipe (52) is fixedly connected to the corner pipe (51). The telescopic pipe (52) is telescopic. A first support plate (54) is fixedly connected to one side of the cleaning box (1). An air pump (53) is fixedly installed on the first support plate (54). The end of the telescopic pipe (52) away from the corner pipe (51) is fixedly connected to the air pump (53). Multiple outlet holes (55) are opened at the top of the support pipe (2). The outlet holes (55) are inclined upward.

6. The multi-point support device for cleaning wax molds according to claim 5, characterized in that: Multiple guide blocks (6) are fixedly connected to the top of the inner surface of the transverse box (25). Each guide block (6) is located between the outlets of two adjacent central holes (5). Each guide block (6) is fixedly connected to a wind guide plate (61) at the bottom. The bottoms of the multiple wind guide plates (61) gradually increase in the direction of the air pump (53).

7. A multi-point support device for cleaning wax molds according to claim 6, characterized in that: A protective box (7) is fixedly installed at the bottom center of the support platform (14). A heat dissipation hole (71) is provided on the side wall of the protective box (7). An electric cylinder (72) is fixedly installed inside the protective box (7). A control rod (73) is fixedly installed on the electric cylinder (72). The upper end of the control rod (73) extends through the support platform (14) and is slidably connected to the support platform (14). One end of the control rod (73) that extends into the support platform (14) is fixedly connected to the bottom of the horizontal box (25).

8. A multi-point support device for cleaning wax molds according to claim 7, characterized in that: Each of the support tubes (2) is fixedly connected to a retaining ring (8) at its lower end, and the upper end of the air passage tube (22) extends through and is fixedly connected to a ring (81).

9. A multi-point support device for cleaning wax molds according to claim 8, characterized in that: A second support plate (91) is fixedly connected to the outer wall of the cleaning tank (1). A circulating water pump (9) is fixedly installed on the second support plate (91). A connecting pipe (92) is fixedly connected to the upper end of the circulating water pump (9). A sprayer (93) is fixedly installed on the top of the cleaning chamber (12). The connecting pipe (92) extends into the cleaning chamber (12) and is fixedly connected to the cleaning chamber (12). An inlet pipe (94) is fixedly connected to the circulating water pump (9). The inlet pipe (94) extends into the water chamber (13) and is fixedly connected to the water chamber (13).

10. A multi-point support device for cleaning wax molds according to claim 9, characterized in that: The bottom of the water cavity (13) is inclined toward the water inlet pipe (94), and a filter plate (100) is fixedly connected to the bottom of the water cavity (13). The filter plate (100) is located on the side close to the water inlet pipe (94) and is inclined.

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