Foundry sand cooling device
By designing a casting sand cooling device with circulating crushing and cooling components, the problems of arm pain and low efficiency caused by manually crushing casting sand are solved, achieving efficient crushing and cooling, and improving the practicality and ease of operation of the equipment.
Patent Information
- Application Number
- CN202520578820.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In existing foundry sand cooling devices, workers need to manually crush the lumpy foundry sand, which causes arm pain and is inefficient, affecting the cooling operation progress and reducing the practicality of the equipment.
Design a foundry sand cooling device that includes a circulating crushing component and a cooling component. The circulating crushing component crushes the foundry sand multiple times, and the cooling component generates airflow to cool the sand particles. The filter plate can be easily replaced by replacing the components.
It improves the crushing efficiency of foundry sand, prevents fatigue caused by manual operation, enhances the practicality and cooling effect of the equipment, and simplifies the replacement process of filter plates.
Smart Images

Figure CN223932525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment technology for casting production, and more specifically to a casting sand cooling device. Background Technology
[0002] Foundry sand, specifically, is a special type of sand used in the casting process. It is typically obtained by processing and proportioning raw sand (such as quartz sand or silica sand) according to certain methods. It possesses good permeability, refractoriness, collapsibility, and a certain strength, meeting the requirements for filling the mold cavity, cooling and solidifying, and unmolding the molten metal during the casting process. Foundry sand plays a crucial role in supporting and shaping the castings during casting, making it an indispensable material in the casting process.
[0003] A search revealed a Chinese patent for a circulating cooling device for casting sand treatment (authorization announcement number CN215587776U), which falls under the technical field of "casting production auxiliary equipment." The protected claim includes: "a support platform, a cooling chamber, and a power chamber; the cooling chamber includes a shell, a feed inlet, a discharge plate, a strainer plate, a discharge plate, a discharge outlet, and a water-cooling pipe; the power chamber includes a power pump, a water inlet pipe, a water outlet pipe, a cooling outlet, and a water return outlet, wherein the power pump is connected to the water inlet pipe, the water outlet pipe, the cooling outlet, and the water return outlet, and the cooling outlet and the water return outlet are connected to the two ends of the water-cooling pipe, respectively."
[0004] The shortcomings of the existing technology are as follows: Before cooling the foundry sand, the blocky foundry sand needs to be crushed. However, in the above-mentioned equipment, the workers use tools to manually crush the sand. The long-term manual operation causes the workers' arms to ache, which further reduces the efficiency of manually crushing the foundry sand. It also affects the progress of the subsequent cooling operation, reduces the practicality of the equipment, and is not conducive to actual application and operation. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a casting sand cooling device to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: a casting sand cooling device, including a processing box and a filter plate. A feeding round pipe is fixedly installed on the top of the processing box, and a discharging square pipe is fixedly installed on the outside of the processing box. An auxiliary box is fixedly installed on the side of the processing box away from the discharging square pipe. A circulating crushing component is arranged inside the processing box and the auxiliary box. A material guiding component is arranged inside the processing box and between the feeding round pipe and the circulating crushing component. A replacement component is arranged inside the processing box and below the circulating crushing component. A cooling component is arranged on one side of the inner wall of the processing box.
[0007] The circulating crushing assembly includes an auxiliary box, a first rotating shaft, a discharge pipe, a first through groove, a second through groove, and a spiral blade. The auxiliary box is fixedly installed on the side of the processing box away from the discharge square pipe. The first rotating shaft is rotatably connected to the inside of the auxiliary box. The spiral blade is fixedly installed on the outside of the first rotating shaft. The second through groove is opened on one side of the inner wall of the processing box. The first through groove is opened on one side of the inner wall of the auxiliary box and close to the second through groove. The inside of the first through groove communicates with the inside of the second through groove. The discharge pipe is fixedly installed between the inner walls of the processing box and the auxiliary box and is located above the first and second through grooves.
[0008] Preferably, the replacement component includes a guide rail, a slide bar, and a third through groove. The guide rails are all fixedly installed on both sides of the inner wall of the processing box, with one of the guide rails located below the second through groove. The third through groove is opened on one side of the inner wall of the processing box. The slide bars are all fixedly installed on both sides of the filter plate. The side of the slide bar away from the filter plate is slidably connected to the inner side of the guide rail. One side of the filter plate penetrates the interior of the third through groove and extends to the outer side of the processing box.
[0009] Preferably, the circulating crushing assembly further includes crushing rollers, a motor, gears, a fixed plate, a second rotating shaft, a first pulley, a second pulley, a first bevel gear, and a second bevel gear. The crushing rollers are all rotatably connected inside the processing box and located above the filter plate. The motor is fixedly installed outside the processing box and located above the third through slot. The output end of the motor extends into the processing box and is fixedly connected to one end of one of the crushing rollers. The gears are all fixedly installed on the outside of the crushing rollers away from the motor and located outside the processing box, with the two gears meshing with each other. The fixed plate is fixedly installed on the outside of the processing box and located below the auxiliary box. The second rotating shaft is rotatably connected inside the fixed plate. The bottom end of the first rotating shaft extends to the outside of the bottom of the auxiliary box. The first bevel gear is fixedly installed on the outside of the first rotating shaft and located outside the auxiliary box. The first bevel gear is fixedly installed at one end of the second rotating shaft, with the first bevel gear meshing with the second bevel gear. The first pulley is fixedly installed on the end of the second rotating shaft away from the second bevel gear. The second pulley is fixedly installed at one end of one of the crushing rollers and located outside one of the gears. The first pulley and the second pulley are connected by a belt drive.
[0010] Preferably, the cooling assembly includes a square groove, an L-shaped plate, a third rotating shaft, a third bevel gear, a fourth bevel gear, and a fan blade. The square groove is formed on one side of the inner wall of the processing box and located below the second through groove. The L-shaped plate is fixedly installed on the outer side of the processing box and located below the square groove. The third rotating shaft is rotatably connected to the inside of the L-shaped plate at the end away from the processing box. The fan blade is fixedly installed at one end of the third rotating shaft and located inside the square groove. The third bevel gear is fixedly installed at the end of the third rotating shaft away from the fan blade. The fourth bevel gear is fixedly installed at the bottom end of the first rotating shaft. The third bevel gear and the fourth bevel gear are meshed together.
[0011] Preferably, the material guiding assembly includes a first material guiding plate and a second material guiding plate. The first material guiding plate is fixedly installed on one side of the inner wall of the processing box and located below the discharge pipe. The second material guiding plate is fixedly installed on the side of the processing box away from the first material guiding plate. The first material guiding plate and the second material guiding plate are away from the inner wall of the processing box and close to the meshing point between the two crushing rollers.
[0012] Preferably, a control panel is provided on the outside of the processing box, and the motor is electrically connected to the control panel.
[0013] The beneficial effects of this utility model are:
[0014] 1. This utility model, by setting up a circulating crushing component, facilitates multiple cycles of crushing of foundry sand, preventing workers from manually crushing the sand for extended periods with tools, which can cause arm pain and affect production efficiency. This improves the efficiency of crushing foundry sand, and the foundry sand after multiple crushings is easier to cool down, increasing the practicality of the equipment.
[0015] 2. This utility model uses a cooling component to generate airflow, which cools the casting sand falling to the bottom of the inner wall of the processing box, thus achieving a cooling effect. By using a replacement component, the filter plate can be removed from the inside of the processing box, thus enabling the replacement of the filter plate. Attached Figure Description
[0016] Figure 1 This is the front view of the present invention.
[0017] Figure 2 This is a rear view of the present invention.
[0018] Figure 3 This is the front sectional view of the present invention.
[0019] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle.
[0020] Figure 5 For the present utility model Figure 3 Enlarged view of point B in the middle.
[0021] Figure 6 This is an external view of the processing box shell of this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Processing box; 2. Feeding round pipe; 3. Discharge square pipe; 4. First guide plate; 5. Second guide plate; 6. Crushing roller; 7. Motor; 8. Gear; 9. Auxiliary box; 10. First rotating shaft; 11. Discharge pipe; 12. First through groove; 13. Second through groove; 14. Fixing plate; 15. Second rotating shaft; 16. First pulley; 17. Second pulley; 18. First bevel gear; 19. Second bevel gear; 20. Square groove; 21. L-shaped plate; 22. Third rotating shaft; 23. Third bevel gear; 24. Fourth bevel gear; 25. Fan blade; 26. Guide rail; 27. Sliding bar; 28. Filter plate; 29. Third through groove; 30. Spiral blade. Detailed Implementation
[0024] The following will be combined with the appendix Figure 1 To be continued Figure 5 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0025] This utility model provides a casting sand cooling device, including a processing box 1 and a filter plate 28. A feeding round pipe 2 is fixedly installed on the top of the processing box 1, and a discharge square pipe 3 is fixedly installed on the outside of the processing box 1. An auxiliary box 9 is fixedly installed on the side of the processing box 1 away from the discharge square pipe 3. A circulating crushing component is provided inside the processing box 1 and the auxiliary box 9. A material guiding component is provided inside the processing box 1 and between the feeding round pipe 2 and the circulating crushing component. A replacement component is provided inside the processing box 1 and below the circulating crushing component. A cooling component is provided on one side of the inner wall of the processing box 1.
[0026] The circulating crushing assembly includes an auxiliary box 9, a first rotating shaft 10, a discharge pipe 11, a first through groove 12, a second through groove 13, a crushing roller 6, a motor 7, a gear 8, a fixing plate 14, a second rotating shaft 15, a first pulley 16, a second pulley 17, a first bevel gear 18, a second bevel gear 19, and a spiral blade 30. The auxiliary box 9 is fixedly installed on the side of the processing box 1 away from the discharge square pipe 3. The first rotating shaft 10 is rotatably connected to the inside of the auxiliary box 9. The spiral blade 30 is fixedly installed on the outside of the first rotating shaft 10. The second through groove 13 is opened on one side of the inner wall of the processing box 1. The first through groove 12 is opened on one side of the inner wall of the auxiliary box 9 and close to the second through groove 13. The interior of the first through groove 12 communicates with the interior of the second through groove 13. The discharge pipe 11 is fixedly installed on the processing box 1. The inner walls of the processing box 1 and auxiliary box 9 are located between the inner walls and above the first through groove 12 and the second through groove 13. Crushing rollers 6 are rotatably connected inside the processing box 1 and above the filter plate 28. Motor 7 is fixedly installed on the outside of the processing box 1 and above the third through groove 29. The output end of motor 7 extends into the processing box 1 and is fixedly connected to one end of one of the crushing rollers 6. Gears 8 are fixedly installed on the outside of the end of the crushing roller 6 away from motor 7 and on the outside of the processing box 1. The two gears 8 are meshed together. Fixing plate 14 is fixedly installed on the outside of the processing box 1 and below the auxiliary box 9. Second rotating shaft 15 is rotatably connected inside the fixing plate 14. The bottom end of first rotating shaft 10 extends to the outside of the bottom of the auxiliary box 9. First bevel gear 18 is fixed... The first bevel gear 18 is fixedly mounted on one end of the second shaft 15, and is meshed with the second bevel gear 19. A first pulley 16 is fixedly mounted on the end of the second shaft 15 away from the second bevel gear 19. A second pulley 17 is fixedly mounted on one end of one of the crushing rollers 6, located outside one of the gears 8. The first pulley 16 and the second pulley 17 are connected by a belt drive. The drive motor 7 rotates one of the crushing rollers 6, thereby rotating one of the gears 8. Utilizing the meshing characteristics, this further rotates the other gear 8, causing the other gear 8 to rotate in opposite directions. The lumpy foundry sand is initially crushed, and the sand particles of varying sizes fall onto the filter plate 28. Smaller particles fall through the holes in the filter plate 28 to the bottom of the inner wall of the processing box 1, while larger particles, due to the inclination of the filter plate 28, roll through the interior of the second channel 13 and the first channel 12, and fall into the interior of the auxiliary box 9. Simultaneously, the rotation of the crushing roller 6 drives the second pulley 17 to rotate, which, in conjunction with the belt, drives the first pulley 16 to rotate. This, in turn, drives the second rotating shaft 15 on the fixed plate 14 to rotate, which in turn drives the second bevel gear 19 and the first bevel gear 18 to rotate. At the same time, it drives the third channel 29 on the first rotating shaft 10 to rotate inside the auxiliary box 9.The casting sand at the bottom of the auxiliary box 9 is transported to the top of the auxiliary box 9 by the rotation of the third through groove 29, and then falls onto the first guide plate 4 through the inside of the discharge pipe 11. The two crushing rollers 6 then mesh and rotate, further crushing the casting sand. The crushed sand then falls onto the filter plate 28 and through the holes in the filter plate 28 to the bottom of the inner wall of the processing box 1. Larger particles of casting sand undergo multiple further crushing until they can pass through the holes in the filter plate 28. This allows for multiple cycles of crushing, preventing workers from manually crushing sand for extended periods, which can cause arm pain and affect production efficiency. It also improves the efficiency of crushing casting sand and makes it easier to cool down the sand after multiple crushing processes, increasing the practicality of the equipment and facilitating its application and operation.
[0027] Furthermore, the cooling assembly includes a square groove 20, an L-shaped plate 21, a third rotating shaft 22, a third bevel gear 23, a fourth bevel gear 24, and a fan blade 25. The square groove 20 is formed on one side of the inner wall of the machining box 1 and is located below the second through groove 13. The L-shaped plate 21 is fixedly installed on the outside of the machining box 1 and is located below the square groove 20. The third rotating shaft 22 is rotatably connected to the inside of the end of the L-shaped plate 21 away from the machining box 1. The fan blade 25 is fixedly installed at one end of the third rotating shaft 22 and is located inside the square groove 20. The third bevel gear 24 is fixedly installed... The third shaft 22 is mounted at the end away from the fan blade 25. The fourth bevel gear 24 is fixedly mounted at the bottom end of the first shaft 10. The third bevel gear 23 and the fourth bevel gear 24 are meshed together. The rotation of the first shaft 10 drives the fourth bevel gear 24 and the third bevel gear 23 to rotate in sequence, thereby driving the third shaft 22 on the L-shaped plate 21 to rotate, which in turn drives the fan blade 25 in the square groove 20 to rotate, thereby generating wind power to cool the casting sand falling to the bottom of the inner wall of the processing box 1, achieving a cooling effect.
[0028] Furthermore, the material guiding assembly includes a first guide plate 4 and a second guide plate 5. The first guide plate 4 is fixedly installed on one side of the inner wall of the processing box 1 and located below the discharge pipe 11. The second guide plate 5 is fixedly installed on the side of the processing box 1 away from the first guide plate 4. The first guide plate 4 and the second guide plate 5 are away from the inner wall of the processing box 1 and close to the meshing point between the two crushing rollers 6. By setting the first guide plate 4 and the second guide plate 5, the blocky casting sand is guided to fall to the meshing point between the two crushing rollers 6 by the inclination of the first guide plate 4 and the second guide plate 5.
[0029] Furthermore, the replacement components include guide rails 26, sliders 27, and a third through groove 29. The guide rails 26 are fixedly installed on both sides of the inner wall of the processing box 1, with one guide rail 26 located below the second through groove 13. The third through groove 29 is opened on one side of the inner wall of the processing box 1. The sliders 27 are fixedly installed on both sides of the filter plate 28. The side of the slider 27 away from the filter plate 28 is slidably connected to the inner side of the guide rail 26. One side of the filter plate 28 passes through the interior of the third through groove 29 and extends to the outside of the processing box 1. When the equipment is turned off, the sliders 27 on both sides of the filter plate 28 are pulled out from the interior of the two guide rails 26, and then the filter plate 28 is pulled out from the interior of the processing box 1 through the interior of the third through groove 29, thus realizing the operation of replacing the filter plate 28.
[0030] Furthermore, a control panel is provided on the outside of the processing box 1, and the motor 7 is electrically connected to the control panel. By setting up the control panel and the electrical connection, it is convenient to drive the equipment quickly.
[0031] The working principle of this invention is as follows: Blocky foundry sand is fed through the inside of the feeding pipe 2 onto the first guide plate 4 and the second guide plate 5. The sand is then guided by the inclination of the first and second guide plates 4 and 5 to the meshing point between two crushing rollers 6. Simultaneously, a drive motor 7 rotates one of the crushing rollers 6, which in turn rotates one of the gears 8. Utilizing the meshing characteristics, this drives the other gear 8 to rotate, causing them to rotate in opposite directions. This initial crushing of the blocky foundry sand results in sand of varying sizes. The foundry sand falls onto the filter plate 28. Smaller particles of foundry sand then fall through the holes in the filter plate 28 to the bottom of the inner wall of the processing box 1. Larger particles of foundry sand, due to the inclination of the filter plate 28, pass through the interior of the second through groove 13 and the first through groove 12 in sequence, rolling into the interior of the auxiliary box 9. At the same time, the rotation of the crushing roller 6 drives the second pulley 17 to rotate, which in turn drives the first pulley 16 to rotate. This drives the second rotating shaft 15 on the fixed plate 14 to rotate, which in turn drives the second bevel gear 19 and the first bevel gear 18 to rotate. Simultaneously, it drives the third through groove on the first rotating shaft 10 to rotate. The third through-slot 29 rotates inside the auxiliary box 9, causing the casting sand at the bottom of the auxiliary box 9 to be transported to the top of the auxiliary box 9 via the rotation of the third through-slot 29. Then, it falls through the inside of the discharge pipe 11 onto the first guide plate 4. Then, through the meshing rotation of the two crushing rollers 6, the casting sand is crushed a second time. The casting sand after secondary crushing falls onto the filter plate 28 and falls through the holes in the filter plate 28 to the bottom of the inner wall of the processing box 1. Larger particles of casting sand are crushed multiple times until they can pass through the holes in the filter plate 28, facilitating multiple cycles of crushing of the casting sand. Then, it passes through the first rotating shaft. The rotation of 10 sequentially drives the fourth bevel gear 24 and the third bevel gear 23 to rotate, thereby driving the third rotating shaft 22 on the L-shaped plate 21 to rotate, which in turn drives the fan blade 25 in the square groove 20 to rotate, generating airflow to cool the casting sand falling to the bottom of the inner wall of the processing box 1, thus achieving the cooling operation. When the equipment is turned off, the sliding strips 27 on both sides of the filter plate 28 are pulled out from the inside of the two guide rails 26, and then the filter plate 28 is pulled out from the inside of the processing box 1 through the inside of the third through groove 29, thus realizing the operation of replacing the filter plate 28, increasing the practicality of the equipment, and facilitating practical application and operation.
[0032] Based on the explanations and teachings in the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and any modifications and alterations to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A casting sand cooling device, comprising a processing box (1) and a filter plate (28), characterized in that: A feeding round pipe (2) is fixedly installed on the top of the processing box (1), a discharging square pipe (3) is fixedly installed on the outside of the processing box (1), an auxiliary box (9) is fixedly installed on the side of the processing box (1) away from the discharging square pipe (3), a circulating crushing component is provided inside the processing box (1) and the auxiliary box (9), a guiding component is provided inside the processing box (1) and between the feeding round pipe (2) and the circulating crushing component, a replacement component is provided inside the processing box (1) and below the circulating crushing component, and a cooling component is provided on one side of the inner wall of the processing box (1). The circulating crushing assembly includes an auxiliary box (9), a first rotating shaft (10), a discharge pipe (11), a first through groove (12), a second through groove (13), and a spiral blade (30). The auxiliary box (9) is fixedly installed on the side of the processing box (1) away from the discharge square tube (3). The first rotating shaft (10) is rotatably connected to the inside of the auxiliary box (9). The spiral blade (30) is fixedly installed on the outside of the first rotating shaft (10). The second through groove (13) is opened on one side of the inner wall of the processing box (1). The first through groove (12) is opened on one side of the inner wall of the auxiliary box (9) and close to the second through groove (13). The inside of the first through groove (12) communicates with the inside of the second through groove (13). The discharge pipe (11) is fixedly installed between the inside of the processing box (1) and the inner wall of the auxiliary box (9) and is located above the first through groove (12) and the second through groove (13).
2. The casting sand cooling device according to claim 1, characterized in that: The replacement assembly includes a guide rail (26), a slide bar (27), and a third through groove (29). The guide rails (26) are all fixedly installed on both sides of the inner wall of the processing box (1), with one of the guide rails (26) located below the second through groove (13). The third through groove (29) is opened on one side of the inner wall of the processing box (1). The slide bars (27) are all fixedly installed on both sides of the filter plate (28). The side of the slide bar (27) away from the filter plate (28) is slidably connected to the inner side of the guide rail (26). One side of the filter plate (28) penetrates the interior of the third through groove (29) and extends to the outside of the processing box (1).
3. The casting sand cooling device according to claim 1, characterized in that: The circulating crushing assembly also includes a crushing roller (6), a motor (7), gears (8), a fixed plate (14), a second rotating shaft (15), a first pulley (16), a second pulley (17), a first bevel gear (18), and a second bevel gear (19). The crushing rollers (6) are all rotatably connected inside the processing box (1) and located above the filter plate (28). The motor (7) is fixedly installed on the outside of the processing box (1) and located above the third through slot (29). The output end of the motor (7) extends into the processing box (1) and is fixedly connected to one end of one of the crushing rollers (6). The gears (8) are all fixedly installed on the outside of the end of the crushing roller (6) away from the motor (7) and located on the outside of the processing box (1). The two gears (8) are meshed together. The fixed plate (14) is fixedly installed in the processing box. (1) is located outside and below the auxiliary box (9). The second rotating shaft (15) is rotatably connected to the inside of the fixed plate (14). The bottom end of the first rotating shaft (10) extends to the outside of the bottom of the auxiliary box (9). The first bevel gear (18) is fixedly installed outside the first rotating shaft (10) and located outside the auxiliary box (9). The first bevel gear (18) is fixedly installed at one end of the second rotating shaft (15). The first bevel gear (18) and the second bevel gear (19) are meshed together. The first pulley (16) is fixedly installed at one end of the second rotating shaft (15) away from the second bevel gear (19). The second pulley (17) is fixedly installed at one end of one of the crushing rollers (6) and located outside one of the gears (8). The first pulley (16) and the second pulley (17) are connected by belt drive.
4. The casting sand cooling device according to claim 1, characterized in that: The cooling assembly includes a square groove (20), an L-shaped plate (21), a third rotating shaft (22), a third bevel gear (23), a fourth bevel gear (24), and a fan blade (25). The square groove (20) is opened on one side of the inner wall of the processing box (1) and is located below the second through groove (13). The L-shaped plate (21) is fixedly installed on the outside of the processing box (1) and is located below the square groove (20). The third rotating shaft (22) is rotatably connected to the inside of the L-shaped plate (21) away from the processing box (1). The fan blade (25) is fixedly installed at one end of the third rotating shaft (22) and is located inside the square groove (20). The third bevel gear (23) is fixedly installed at the end of the third rotating shaft (22) away from the fan blade (25). The fourth bevel gear (24) is fixedly installed at the bottom end of the first rotating shaft (10). The third bevel gear (23) and the fourth bevel gear (24) are meshed together.
5. A casting sand cooling device according to claim 1, characterized in that: The material guiding assembly includes a first guide plate (4) and a second guide plate (5). The first guide plate (4) is fixedly installed on one side of the inner wall of the processing box (1) and located below the discharge pipe (11). The second guide plate (5) is fixedly installed on the side of the processing box (1) away from the first guide plate (4). The first guide plate (4) and the second guide plate (5) are away from the inner wall of the processing box (1) and close to the meshing point between the two crushing rollers (6).
6. A casting sand cooling device according to claim 3, characterized in that: A control panel is provided on the outside of the processing box (1), and the motor (7) is electrically connected to the control panel.
Citation Information
Patent Citations
Casting sand treatment circulating cooling device
CN215587776U