Circulating type cooling device for casting

Abstract

The utility model relates to a circulating cooling device for casting, which comprises a device frame, a cooling tank mounted on the device frame, a circulating cooling structure and a hot air extraction structure, a moving structure capable of lifting and stretching is mounted in the cooling tank, and an opening structure for opening when the moving structure stretches is mounted on the front end face of the cooling tank. The moving structure comprises an up-and-down lifting structure and a front-and-back extending structure, the up-and-down lifting structure comprises a gear motor installed at the upper end of the cooling tank, the output end of the gear motor is connected with a threaded shaft, first guide rails are installed on the inner walls of the left side and the right side of the cooling tank correspondingly, and a movable plate is arranged on the surface of the threaded shaft; second movable wheels are movably installed on the left side face and the right side face of the movable plate, and the stretching structure comprises a servo motor installed at the upper end of the cooling tank. The cooling device solves the problem that an existing cooling device cannot effectively guarantee effective absorption of high-temperature water vapor to prevent scalding of operators and influence on sight lines.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to a circulating cooling device for casting. Background Art

[0002] Casting is the process of melting metal and pouring the molten metal into a casting cavity to form parts that are consistent with the shape of the casting cavity. Generally, the parts need to be cooled after cooling and solidification. The existing cooling device is generally water cooling. This cooling method will instantly generate high-temperature water vapor when the high-temperature parts come into contact with water. Operators will often be scalded by this high-temperature water vapor, which will affect the operator's performance and leave a safety hazard.

[0003] Therefore, in order to solve the above technical problems, Chinese patent CN220837891U, a cooling device for casting points out that first a circulation pipe is used to fill the water tank with water, and then the casting raw materials are put in for cooling after being filled with water, and at the same time the fan is started to perform suction work, and the water vapor volatilized during the cooling process is sucked in during the suction process, and after being sucked in, it is sent into the hose from the docking pipe for centralized treatment, and when the suction position needs to be adjusted, the servo motor of the power mechanism is operated, and the screw is driven to rotate during the operation, and the bearings rotate synchronously during the rotation of the screw, and the suction mechanism is driven to move through the threaded engagement between the screw and the hanging ear during the rotation of the screw, and the suction position is adjusted during the movement, and the suction mechanism is driven to move to the end of the slide rail when loading and unloading, and then When the air mechanism slides on the slide rail, the pin is engaged with the slide rail, and the limiting work is performed during the engagement process. When performing cooling work, the water vapor can be effectively treated by the suction mechanism. The better effect of treating water vapor can effectively prevent the staff from being scalded. At the same time, it can effectively prevent water vapor from affecting the line of sight when working. Although this method can absorb water vapor, the above patent still has certain technical problems. According to the drawings of the above patent, it can be seen that covering steam absorption cannot be achieved. Even if the steam is absorbed by the suction mechanism, it cannot guarantee that all the water vapor will be absorbed, and thus it cannot effectively ensure that the operator will not be scalded by high-temperature water vapor, and it cannot guarantee that the operator will not be affected by a large amount of water vapor. The problem of affecting the operator's vision.

[0004] Therefore, in order to achieve covered steam absorption of castings and effectively prevent high-temperature steam from scalding operators and affecting their vision, a circulating cooling device for casting is proposed. Utility Model Content

[0005] In view of the deficiencies of the existing technology, the utility model provides a circulating cooling device for casting, which solves the problem that the existing cooling device cannot effectively ensure the effective absorption of high-temperature water vapor to prevent burns to operators and affect their vision.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating cooling device for casting, comprising a device frame, a cooling tank installed on the device frame, a circulating cooling structure, and a hot air extraction structure. A movable structure that can be lifted and stretched is installed in the cooling tank, and the front end surface of the cooling tank is installed with an opening structure that opens when the movable structure is stretched. The movable structure includes an up and down lifting structure and a front and back stretching structure. The up and down lifting structure includes a reduction motor installed on the upper end of the cooling tank, the output end of the reduction motor is connected to a threaded shaft, and first guide rails are installed on the left and right inner walls of the cooling tank, a movable plate is provided on the surface of the threaded shaft, and second movable wheels are movably installed on the left and right side surfaces of the movable plate, and the stretching structure includes a servo motor installed on the upper end of the cooling tank, the output end of the servo motor is connected to the first rotating shaft, and a second movable wheel is installed on the inner side surface of the upper end of the cooling tank. The transmission gear is mounted on the second transmission gear and is located on the rotation side of the gear train, and the transmission gear is mounted on the second transmission gear and is located on the rotation side of the gear train.

[0007] Through the above technical solution, further, a first bearing seat is installed on the inner side surface of the upper end of the cooling tank, and its first rotating shaft is fixedly connected to the inner ring of the first bearing seat.

[0008] Furthermore, three groups of second guide rails are provided on the upper surface of the movable plate, and a protrusion with a groove is provided on the lower end of the movable plate, and the protrusion contacts the surface of the second guide rail.

[0009] As a preferred technical solution, a fourth bearing seat is installed on the opposite side of the fixed plate, its second rotating shaft does not contact the inner ring of the fourth bearing seat, and the upper and lower ends of the transmission teeth are fixedly connected to the inner ring of the fourth bearing seat.

[0010] Furthermore, the opening structure includes a mounting block symmetrically arranged at the front end of the cooling tank, an electric push rod is installed on the mounting block, an opening is opened at the front end of the cooling tank, a blocking door is provided at the front end of the cooling tank, a connecting plate is installed on the blocking door, the telescopic end of the electric push rod is connected to the mounting plate, the mounting plate and the connecting plate are fixedly connected, and a clamping plate is symmetrically installed at the front end of the cooling tank, and the blocking door is in contact with the rear side of the clamping plate.

[0011] As a preferred technical solution, a square through hole is opened at the front end of the pressing plate, and a rotating column is movably installed in the square through hole, and the rotating column contacts the front end surface of the barrier door.

[0012] Furthermore, the circulating cooling structure includes a first mounting bracket installed at the front end of the device frame, a water pump is installed at the upper end of the first mounting bracket, the water pumping end of the water pump is connected to a water pumping pipe, the water pumping pipe is connected to the lower end of the cooling tank, the water outlet end of the water pump is connected to a three-way connecting pipe, and a second mounting bracket is installed on both left and right sides of the device frame, a water cooler is installed on the right side of the second mounting bracket, a cooling fan is installed on the right side of the water cooler, one end of the three-way connecting pipe is connected to a water outlet pipe, the water outlet pipe is connected to the water inlet of the water cooler, the water outlet of the water cooler is connected to the water inlet pipe, and the water inlet pipe is connected to the surface of the cooling tank.

[0013] As a preferred technical solution, the hot air extraction structure includes an exhaust fan symmetrically installed at the upper end of the cooling tank.

[0014] Furthermore, a downwardly extending opening is provided at the lower end portion of the opening at the front end of the cooling tank, and a first movable wheel is installed on the downwardly extending opening, and the first movable wheel is in contact with the lower end of the movable plate.

[0015] Compared with the prior art, the present invention provides a circulating cooling device for casting, which has the following beneficial effects:

[0016] 1. When the device is in use, first open the barrier door, lift the movable plate upward to the middle position of the cooling tank, then extend the movable plate forward to the outside of the cooling tank, then place the high-temperature casting on the movable plate, and then drive the first rotating shaft to rotate through the servo motor and then drive the shaft to rotate through the cooperation of the first gear and the second gear, and realize the rotation of the second rotating shaft through the action of the transmission toothed belt, so that the first rotating shaft and the second rotating shaft rotate in opposite directions, and then drive the transmission gear to rotate, thereby driving the long teeth to drive the movable plate to retract into the cooling tank, and then the servo motor stops running, and its reduction motor drives the threaded shaft to rotate, thereby moving the movable plate downward and immersing it in water, and then when the movable plate retracts into the cooling tank, its barrier door is closed, and at this time the high-temperature water vapor is quickly extracted by the action of the two sets of exhaust fans, thereby realizing the covering absorption of water vapor, effectively preventing the problem of burns to the operator caused by high-temperature water vapor, and there is no need to worry about the problem of sight being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a circulating cooling device for casting according to the utility model;

[0018] Figure 2 This is a right side structural diagram of a circulating cooling device for casting according to the utility model;

[0019] Figure 3 This is a schematic diagram of the movable structure of a circulating cooling device for casting according to the utility model;

[0020] Figure 4 This utility model is a circulating cooling device for casting Figure 3 AA cross-sectional structural diagram;

[0021] Figure 5 This is a schematic diagram of the second rotating shaft and transmission gear structure of a circulating cooling device for casting in the utility model;

[0022] Figure 6 This utility model is a circulating cooling device for casting Figure 1 A local enlarged structural diagram of point A;

[0023] Figure 7 This utility model is a circulating cooling device for casting Figure 1 A schematic diagram of the partially enlarged structure at point B;

[0024] Figure 8 This utility model is a circulating cooling device for casting Figure 1 A schematic diagram of the partially enlarged structure at point C;

[0025] Figure 9 This utility model is a circulating cooling device for casting Figure 3 A schematic diagram of the local enlarged structure at D;

[0026] Figure 10 This utility model is a circulating cooling device for casting Figure 4 A schematic diagram of the local enlarged structure at E;

[0027] Figure 11 This utility model is a circulating cooling device for casting Figure 4 Schematic diagram of the local enlarged structure at F.

[0028] In the figure: 1. Device frame; 2. First mounting frame; 3. Water pump; 4. Three-way connecting pipe; 5. Second mounting frame; 6. Water cooler; 7. Cooling fan; 8. Water outlet pipe; 9. Cooling tank; 10. Speed ​​reducer; 11. Exhaust fan; 12. Servo motor; 13. Barrier door; 14. Mounting block; 15. Electric push rod; 16. Connecting plate; 17. Mounting plate; 18. Pressing plate; 19. Rotating column; 20. First movable wheel; 21. Water pump; 22. First guide rail; 23. First Bearing seat; 24, second bearing seat; 25, first rotating shaft; 26, first gear; 27, second gear; 28, first gear wheel; 29, transmission belt; 30, threaded shaft; 31, third bearing seat; 32, second gear wheel; 33, second rotating shaft; 34, movable plate; 35, moving plate; 36, second movable wheel; 37, long teeth; 38, fixed plate; 39, transmission teeth; 40, opening; 41, fourth bearing seat; 42, second guide rail; 43, latch; 44, water inlet pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example

[0031] See also Figure 1-11The utility model provides the following technical solutions: a circulating cooling device for casting, comprising a device frame 1, a cooling tank 9 installed on the device frame 1, a circulating cooling structure, and a hot air extraction structure. A movable structure that can be lifted and stretched is installed in the cooling tank 9, and the front end surface of the cooling tank 9 is installed with an opening structure that opens when the movable structure is stretched. The movable structure includes an up and down lifting structure and a front and back stretching structure. The up and down lifting structure includes a reduction motor 10 installed at the upper end of the cooling tank 9, the output end of the reduction motor 10 is connected with a threaded shaft 30, and first guide rails 22 are installed on the inner walls of the left and right sides of the cooling tank 9. A movable plate 34 is provided on the surface of the threaded shaft 30, and second movable wheels 36 are movably installed on the left and right sides of the movable plate 34. The stretching structure includes a servo motor 12 installed at the upper end of the cooling tank 9, and the output end of the servo motor 12 is connected with a first rotating shaft 25. A second bearing seat 24 is installed on the inner side surface of the upper end of the cooling tank 9. The inner ring of the second bearing seat 24 is fixedly installed with a shaft. A first gear 26 is mounted on the surface of a rotating shaft 25, and a second gear 27 is mounted on the surface of the shaft. The first gear 26 and the second gear 27 form a gear transmission, and a first belt gear 28 is also mounted on the surface of the shaft. A third bearing seat 31 is also mounted on the right side of the inner side of the upper end of the cooling tank 9. The inner ring of the third bearing seat 31 is fixedly mounted with a second rotating shaft 33. A second belt gear 32 is mounted on the surface of the second rotating shaft 33. A transmission toothed belt 29 is connected between the first belt gear 28 and the second belt gear 32. Openings 40 are provided on the surfaces of the rotating shaft 25 and the second rotating shaft 33. Fixed plates 38 are installed on the left and right sides of the movable plate 34. A transmission tooth 39 is movably installed between the fixed plates 38. The transmission tooth 39 is sleeved on the surface of the second rotating shaft 33. A latch 43 is provided on the inner side of the transmission tooth 39. The latch 43 passes through the second rotating shaft 33. A movable plate 35 is movably installed on the upper end of the movable plate 34. Long teeth 37 are installed on the left and right sides of the movable plate 35. The long teeth 37 and the transmission teeth 39 constitute a gear transmission.

[0032] In this embodiment, the specific working principle is: when in use, first start the reduction motor 10 to drive the threaded shaft 30 to rotate so that the movable plate 34 moves upward, so that the movable plate 34 moves to the position where the opening structure is located, and then the opening structure is opened. At this time, the servo motor 12 is started, driving the first rotating shaft 25 to rotate, and the second rotating shaft 33 is driven to rotate through the gear transmission and the transmission toothed belt 29. At this time, the first rotating shaft 25 and the second rotating shaft 33 rotate in opposite directions. Because a latch 43 is provided in the transmission tooth 39, it should be noted that the transmission tooth 39 is not fixedly connected to the first rotating shaft 25. The latch 43 moves along the opening 40, and then the first rotating shaft 25 rotates. The movement can drive the transmission teeth 39 to rotate, and then the movable plate 35 can be extended outward through the long teeth 37. At this time, the operator puts the high-temperature casting on the movable plate 35, and then shrinks the movable plate 35, and then closes the opening structure. The reduction motor 12 drives the movable plate 34 to move downward so that the casting is immersed in the water at the bottom of the cooling tank 9. At this time, the high-temperature water vapor will be extracted through the hot air extraction structure, and the water in the cooling tank 9 will be cooled by the circulating cooling structure. Therefore, this device realizes the covering absorption of water vapor, effectively preventing the operator from being burned by high-temperature water vapor, and there is no need to worry about the problem of vision being affected.

[0033] According to the above, referring to FIG. Figure 10 It can be seen that the first guide rails 22 provided on the left and right inner sides of the cooling tank 9 make contact with the second movable wheels 36 installed on the left and right side surfaces of the movable plate 34, thereby preventing the instability of the movable plate 34 when moving up and down.

[0034] According to the above, in order to facilitate the rotation of the first rotating shaft 25, please refer to Figure 3 It can be seen that a first bearing seat 23 is also installed on the inner side surface of the upper end of the cooling tank 9, and its first rotating shaft 25 is fixedly connected to the inner ring of the first bearing seat 23.

[0035] In order to facilitate the movement of the movable plate 35 and prevent the movable plate 35 from tilting, please refer to Figure 9 It can be seen that three groups of second guide rails 42 are provided on the upper end surface of the movable plate 34 , and a protrusion with a groove is provided on the lower end of the movable plate 35 , and the protrusion is in surface contact with the second guide rail 42 .

[0036] In order to facilitate the smooth rotation of the transmission gear 39, please refer to Figure 9 It can be seen that a fourth bearing seat 41 is installed on the opposite side of the fixed plate 38, and its second rotating shaft 33 does not contact the inner ring of the fourth bearing seat 41. The upper and lower ends of the transmission tooth 39 are fixedly connected to the inner ring of the fourth bearing seat 41. It should be noted that the fourth bearing 41 is not fixedly connected to the surface of the second rotating shaft 33, but is connected to the transmission tooth 39 through the inner ring of the fourth bearing seat 41, which facilitates the rotation of the transmission tooth 39.

[0037] The opening structure can be found in Figure 1 and Figure 6 It can be seen that the opening structure includes a mounting block 14 symmetrically arranged at the front end of the cooling tank 9, an electric push rod 15 is installed on the mounting block 14, an opening is opened at the front end of the cooling tank 9, a blocking door 13 is provided at the front end of the cooling tank 9, a connecting plate 16 is installed on the blocking door 13, the telescopic end of the electric push rod 15 is connected to the mounting plate 17, the mounting plate 17 is fixedly connected to the connecting plate 16, and a clamping plate 18 is symmetrically installed at the front end of the cooling tank 9, the blocking door 13 is in contact with the rear side of the clamping plate 18, the electric push rod 15 is started and extended upward, and at this time the blocking door 13 is driven to move along the rear side of the clamping plate 18 by the action of the mounting plate 17 and the connecting plate 16, thereby realizing the opening and closing of the blocking door 13.

[0038] In order to make the barrier door 13 move up and down close to the front end surface of the cooling tank 9, please refer to Figure 8 It can be seen that a square through hole is opened at the front end of the clamping plate 18, and a rotating column 19 is movably installed in the square through hole. The rotating column 19 contacts the front end surface of the blocking door 13. The rotating column 19 blocks the surface of the blocking door 13 so that the blocking door 13 will not move in the clamping plate 18, which can effectively prevent the dispersion of high-temperature steam.

[0039] In order to realize the recycling of water, please refer to Figure 1 and Figure 2 It can be seen that the circulating cooling structure includes a first mounting frame 2 installed at the front end of the device frame 1, a water pump 3 is installed at the upper end of the first mounting frame 2, the water pumping end of the water pump 3 is connected to a water pumping pipe 21, the water pumping pipe 21 is connected to the lower end of the cooling tank 9, and the water outlet end of the water pump 3 is connected to a three-way connecting pipe 4. Second mounting frames 5 are installed on both left and right sides of the device frame 1, a water cooler 6 is installed on the right side of the second mounting frame 5, a cooling fan 7 is installed on the right side of the water cooler 6, and one end of the three-way connecting pipe 4 is connected to a water outlet pipe 8. The water outlet pipe 8 is connected to the water inlet of the water cooler 6, and the water outlet of the water cooler 6 is connected to the water inlet pipe 44. The water inlet pipe 44 is connected to the surface of the cooling tank 9. Through the action of the water pump 3, the water in the cooling tank 9 is pumped out through the water pump pipe 21 connected to the water pump port of the water pump 3, and then pumped into the three-way connecting pipe 4. The pumped water is then transmitted to the water cooler 6 through the water outlet pipe 8, and then cooled by the cooling fan 7. The cooled water is then poured into the cooling tank 9 through the water inlet pipe 44, thereby realizing recycling.

[0040] It should also be noted that when the casting is water-cooled, in order to prevent the falling of particles and the clogging of the water pumping pipe 21, a square frame is installed around the water pumping pipe 21 at the bottom inner side of the cooling tank 9, and a protective net is installed around the frame to prevent the clogging of the water pumping pipe 21 due to the accumulation of particles.

[0041] See Figure 1 and Figure 2 It can be seen that the hot gas extraction structure includes an exhaust fan 11 symmetrically installed on the upper end of the cooling tank 9 to extract the high-temperature steam.

[0042] In order to prevent the movable plate 35 from tilting downward due to the influence of gravity when the casting is placed on the movable plate 35, please refer to Figure 7 It can be seen that a downwardly extending opening is provided at the lower end portion of the opening at the front end of the cooling tank 9 , and a first movable wheel 20 is mounted on the downwardly extending opening. The first movable wheel 20 contacts the lower end of the movable plate 35 .

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A circulating cooling device for casting, comprising a device frame (1), a cooling tank (9) mounted on the device frame (1), a circulating cooling structure, and a hot air extraction structure, characterized in that: A movable structure capable of lifting and extending is installed in the cooling tank (9), and an opening structure is installed on the front end of the cooling tank (9) to open when the movable structure is extended. The movable structure includes an up-and-down lifting structure and a front-and-rear extension structure. The up-and-down lifting structure includes a reduction motor (10) installed at the upper end of the cooling tank (9), and the output end of the reduction motor (10) is connected to a threaded shaft (30). First guide rails (22) are installed on the inner walls of the left and right sides of the cooling tank (9), and a movable guide rail (22) is provided on the surface of the threaded shaft (30). The movable plate (34) is provided with a second movable wheel (36) on both sides thereof, and its extension structure includes a servo motor (12) installed on the upper end of the cooling tank (9), the output end of the servo motor (12) is connected to the first rotating shaft (25), a second bearing seat (24) is installed on the inner side of the upper end of the cooling tank (9), the inner ring of the second bearing seat (24) is fixedly provided with a shaft, a first gear (26) is installed on the surface of the first rotating shaft (25), a second gear (27) is installed on the surface of the shaft, and the first gear (26) is installed on the surface of the first rotating shaft (25). ) and the second gear (27) form a gear transmission, and a first belt gear (28) is also installed on the shaft surface, and a third bearing seat (31) is also installed on the right side of the inner side surface of the upper end of the cooling tank (9). The inner ring of the third bearing seat (31) is fixedly installed with a second rotating shaft (33), and a second belt gear (32) is installed on the surface of the second rotating shaft (33). A transmission toothed belt (29) is connected between the first belt gear (28) and the second belt gear (32). The surfaces of the first rotating shaft (25) and the second rotating shaft (33) are both provided with openings (40). A fixed plate (38) is installed on both sides of the movable plate (34), and a transmission tooth (39) is movably installed between the fixed plates (38). The transmission tooth (39) is sleeved on the surface of the second rotating shaft (33). A latch (43) is provided inside the transmission tooth (39). The latch (43) passes through the second rotating shaft (33). A movable plate (35) is movably installed on the upper end of the movable plate (34). Long teeth (37) are installed on both sides of the movable plate (35). The long teeth (37) and the transmission teeth (39) constitute a gear transmission.

2. A circulating cooling device for casting according to claim 1, characterized in that: A first bearing seat (23) is also installed on the inner side surface of the upper end of the cooling tank (9), and its first rotating shaft (25) is fixedly connected to the inner ring of the first bearing seat (23).

3. A circulating cooling device for casting according to claim 1, characterized in that: The upper end surface of the movable plate (34) is provided with three groups of second guide rails (42), and the lower end of the movable plate (35) is provided with a protrusion with a groove, and the protrusion contacts the surface of the second guide rail (42).

4. A circulating cooling device for casting according to claim 1, characterized in that: A fourth bearing seat (41) is installed on the opposite side of the fixed plate (38), the second rotating shaft (33) does not contact the inner ring of the fourth bearing seat (41), and the upper and lower ends of the transmission gear (39) are fixedly connected to the inner ring of the fourth bearing seat (41).

5. The circulating cooling device for casting according to claim 1, characterized in that: The opening structure comprises a mounting block (14) symmetrically arranged at the front end of the cooling tank (9), an electric push rod (15) is installed on the mounting block (14), an opening is opened at the front end of the cooling tank (9), a blocking door (13) is arranged at the front end of the cooling tank (9), a connecting plate (16) is installed on the blocking door (13), the telescopic end of the electric push rod (15) is connected to the mounting plate (17), the mounting plate (17) is fixedly connected to the connecting plate (16), a pressing plate (18) is symmetrically installed at the front end of the cooling tank (9), and the blocking door (13) is in contact with the rear side of the pressing plate (18).

6. A circulating cooling device for casting according to claim 5, characterized in that: A square through hole is provided at the front end of the pressing plate (18), and a rotating column (19) is movably installed in the square through hole. The rotating column (19) contacts the front end surface of the blocking door (13).

7. The circulating cooling device for casting according to claim 1, characterized in that: The circulating cooling structure comprises a first mounting frame (2) mounted on the front end of the device frame (1); a water pump (3) is mounted on the upper end of the first mounting frame (2); a water pump (3) is connected to a water pumping pipe (21); the water pumping pipe (21) is connected to the lower end of the cooling tank (9); the water outlet end of the water pump (3) is connected to a three-way connecting pipe (4); a second mounting frame (5) is mounted on both left and right sides of the device frame (1); a water cooler (6) is mounted on the right side of the second mounting frame (5); a cooling fan (7) is mounted on the right side of the water cooler (6); one end of the three-way connecting pipe (4) is connected to a water outlet pipe (8); the water outlet pipe (8) is connected to the water inlet of the water cooler (6); the water outlet of the water cooler (6) is connected to a water inlet pipe (44); and the water inlet pipe (44) is connected to the surface of the cooling tank (9).

8. The circulating cooling device for casting according to claim 1, characterized in that: The hot air extraction structure comprises an exhaust fan (11) symmetrically installed on the upper end of the cooling tank (9).

9. The circulating cooling device for casting according to claim 1, characterized in that: A downwardly extending opening is provided at the lower end of the opening at the front end of the cooling tank (9), and a first movable wheel (20) is installed on the downwardly extending opening. The first movable wheel (20) contacts the lower end of the movable plate (35).

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