Rapid cooling device for precooling casting

Abstract

The invention discloses a rapid cooling device for pre-cooling a casting, and relates to the technical field of casting cooling, the rapid cooling device comprises a water cooling module for performing water cooling on a casting rod, and in the water cooling process, the casting rod is uniformly cooled through rotation; the air cooling module is arranged at one end of the water cooling module, the air cooling module is used for erecting the casting rod in air, and air cooling is conducted through an air blower on one side of the air cooling module; a first locking mechanism and a second locking mechanism are arranged in the air cooling module and control the connection relation between the first containing frame and the lead screw and the connection relation between the second containing frame and the lead screw correspondingly, and then the first containing frame is controlled to move or rotate. The casting rod cooling device has the beneficial effects that the temperature of the surface of a casting rod is rapidly taken away through air cooling, in the air cooling process, the casting rod on the air cooling module can achieve the uniform cooling effect by rotating the air cooling module, after the temperature of the casting rod is reduced to a certain range, the casting rod is pushed into the water cooling module, and the water cooling module can also rotate; and the casting rod is uniformly cooled.

Description

Technical Field

[0001] The invention relates to the technical field of casting cooling, in particular to a rapid cooling device for precooling castings. Background Art

[0002] Cast rod is a common casting product, which is usually used to manufacture various metal parts or products. Cast rod can be produced by various casting processes, such as sand casting, metal casting, etc.

[0003] The cooling rate after the homogenization of the cast rod is crucial, affecting the efficiency and quality of the subsequent extrusion process. Taking the 6-series aluminum alloy as an example, if the homogenization cooling rate is slow, coarse Mg2Si particles will precipitate at the grain boundaries and in the grains. These coarse Mg2Si particles are difficult to dissolve back into the aluminum alloy matrix during the heating before extrusion of the aluminum alloy cast rod and the extrusion process, thus affecting the strength of the extruded profile. When the extrusion speed is fast, the coarse Mg2Si particles will cause flow difficulties and are prone to cracking. This effect is more obvious for high-strength aluminum alloys with higher alloy components.

[0004] Therefore, the cast rod needs to be cooled quickly after homogenization, but it is very important that the casting can be cooled evenly during the cooling process. Inconsistent cooling rates in different parts will lead to excessive temperature gradients, increased internal stress and uneven structure. Therefore, measures need to be taken to ensure that the temperature of the casting is uniform during the cooling process. Summary of the invention

[0005] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0007] Therefore, an object of the present invention is to provide a rapid cooling device for precooling a casting, which solves the problem of rapid cooling of the cast rods and ensures uniform cooling of the cast rods.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a rapid cooling device for pre-cooling a casting, comprising a water cooling module, for water cooling the cast rods, and during the water cooling process, the cast rods are rotated so as to be uniformly cooled; An air cooling module is disposed at one end of the water cooling module, and is used to place the cast rods in the air and cool them by a blower on one side of the air cooling module; a first locking mechanism and a second locking mechanism are provided in the air cooling module, which respectively control the connection relationship between the first placement rack and the second placement rack and the screw rod, thereby controlling the movement or rotation of the first placement rack; A driving module, controlling the water cooling module and the air cooling module to rotate at different speeds; A clamping mechanism is provided in the placement holes of the first placement rack and the second placement rack, and the clamping mechanism plays a certain clamping role on the cast rods.

[0009] As a preferred solution of the sectional heat exchanger for chemical equipment described in the present invention, the water-cooling module includes a cooling bin, a driven gear is provided on the outer side of one end of the cooling bin, and a first movable joint is provided on the other end of the cooling bin; a plurality of through placement grooves are provided in the middle of the water-cooling module, and a baffle is provided in the middle of the cooling bin; a water inlet and a water outlet are provided at the upper and lower ends of the first movable joint respectively; The water cooling module also includes a water storage tank, a pump is provided on one side of the water storage tank, the pump is connected to the water inlet through a pipeline, and the water outlet is connected to the water storage tank.

[0010] As a preferred solution of the sectional heat exchanger for chemical equipment described in the present invention, wherein: the air cooling module comprises the second placement rack and the first placement rack, and the two ends of the screw rod pass through the middle of the second placement rack and the first placement rack respectively; the edges of the second placement rack and the first placement rack are both provided with a second movable joint, the second movable joint and the second placement rack and the first placement rack are all movably connected, and the upper end and the lower end of the second movable joint are both provided with water pipes; A braking mechanism is provided below the second placement rack; The first locking mechanism and the second locking mechanism are respectively disposed at the connection between the first placement rack and the second placement rack and the screw rod.

[0011] As a preferred solution of the sectional heat exchanger for chemical equipment described in the present invention, the clamping mechanism includes a clamping ring, a clamping head and a roller are arranged inside the clamping ring, a first electric rod is arranged at the rear end of the clamping head; the roller is placed on the roller head, and a second electric rod is arranged at the rear end of the roller head.

[0012] As a preferred solution of the sectional heat exchanger for chemical equipment described in the present invention, the first locking mechanism includes a locking ring, a locking head is provided inside the locking ring, a third electric rod is provided at the rear end of the locking head; and a threaded joint is provided between the locking heads.

[0013] As a preferred solution of the sectional heat exchanger for chemical equipment described in the present invention, the braking mechanism includes a brake frame, a groove for accommodating a brake screw is provided in the brake frame, one end of the brake screw is connected to the output end of the brake motor, and the other end of the brake screw is movably connected to the inner wall of the groove, a brake clamp is provided on the brake screw, and a stopper is provided above one end of the brake frame.

[0014] As a preferred solution of the sectional heat exchanger for chemical equipment described in the present invention, wherein: the driving module includes a driving motor, the output end of the driving motor is provided with a driving gear, one side of the driving gear is connected to a driving rod, the other end of the driving rod is connected to one end of a driving track through a first transmission head, and the other end of the driving track is connected to a second transmission head at one end of the screw rod; the driving gear and the driving rod are connected through a one-way damping bearing; The driving gear is also connected to the driven gear through a transmission rack.

[0015] As a preferred solution of the sectional heat exchanger for chemical equipment of the present invention, wherein: a bracket is provided below the water cooling module and the air cooling module; a first bracket rod and a second bracket rod are provided on the bracket, an arc-shaped limit head is provided on the first bracket rod, and a ball is provided on the side of the arc-shaped limit head facing the water cooling module; The upper end of the second bracket rod is movably connected to the second transmission head.

[0016] As a preferred solution of the sectional heat exchanger for chemical equipment of the present invention, the driving module also has a second form, and the driving gear at the output end of the driving motor is connected to the driven gear only through a transmission rack.

[0017] As a preferred solution of the sectional heat exchanger for chemical equipment described in the present invention, the upper water pipe of the two water pipes is connected to the water injection port, and the lower water pipe is connected to the water outlet.

[0018] Beneficial effects of the present invention: The present invention divides the cooling process of the cast rod into two steps. The first step is air cooling, which uses air cooling to quickly remove the temperature of the surface of the cast rod. During the air cooling process, the air cooling module is rotated so that the cast rod on the air cooling module can achieve a uniform cooling effect. After the temperature of the cast rod drops to a certain range, the air cooling module is used to push the cast rod into the water cooling module, and the water cooling module is used to water cool the cast rod. Also during the water cooling process, the water cooling module will rotate to cool the cast rod. During the air cooling process of the air cooling module, the clamping point between the air cooling module and the cast rod is cooled by a water pipe to avoid the problem of thermal stress concentration at the clamping point. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1It is an overall schematic diagram of a rapid cooling device for precooling a casting; Figure 2 A schematic diagram of the interior of a water cooling module of a rapid cooling device for precooling a casting; Figure 3 A schematic diagram of an air cooling module of a rapid cooling device for precooling a casting; Figure 4 A schematic diagram of a clamping mechanism of a rapid cooling device for precooling a casting; Figure 5 A schematic diagram of a first locking mechanism of a rapid cooling device for precooling a casting; Figure 6 A schematic diagram of a brake mechanism of a rapid cooling device for precooling a casting; Markings in the figure: 100, water cooling module; 200, air cooling module; 300, drive module; 400, bracket; 500, blower; 101, cooling chamber; 102, placement slot; 103, driven gear; 104, first movable joint; 105, water storage tank; 106, pump; 107, water outlet; 108, water inlet; 109, baffle; 201, second placement rack; 202, first placement rack; 203, clamping mechanism; 204, first locking mechanism; 205, screw rod; 206, second locking mechanism; 207, second movable joint; 208, water pipe; 209, brake mechanism; 210, placement hole; 301, drive motor; 302, drive rod; 303 , transmission rack; 304, driving gear; 305, transmission crawler; 306, first transmission head; 307, one-way damping bearing; 401, first bracket rod; 402, second bracket rod; 403, arc limit head; 203a, clamping ring; 203b, clamping head; 203c, first electric rod; 203d, second electric rod; 203e, roller head; 203f, roller; 204a, locking ring; 204b, locking head; 204c, third electric rod; 204d, threaded joint; 209a, brake frame; 205a, second transmission head; 209b, brake clamp; 209c, brake screw; 209d, block; 209e, brake motor. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0023] Example 1, reference Figure 1 to Figure 6 , which is the first embodiment of the present invention, provides a rapid cooling device for pre-cooling a casting, which includes a water cooling module 100, which water-cools the cast rods, and during the water cooling process, the cast rods are rotated so as to be uniformly cooled; The air cooling module 200 is placed at one end of the water cooling module 100. The air cooling module 200 is used to place the cast rods in the air and cool them by means of a blower 500 on one side of the air cooling module 200. The air cooling module 200 is provided with a first locking mechanism 204 and a second locking mechanism 206, which respectively control the connection relationship between the first placement rack 202 and the second placement rack 201 and the screw rod 205, thereby controlling the movement or rotation of the first placement rack 202. The driving module 300 controls the water cooling module 100 and the air cooling module 200 to rotate at different speeds; A clamping mechanism 203 is disposed inside the placement holes 210 of the first placement rack 202 and the second placement rack 201 . The clamping mechanism 203 plays a certain clamping role on the cast rods.

[0024] The water cooling module 100 includes a cooling chamber 101, a driven gear 103 is disposed on the outer side of one end of the cooling chamber 101, and a first movable joint 104 is disposed on the other end of the cooling chamber 101; a plurality of through placement slots 102 are disposed in the middle of the water cooling module 100, and a baffle 109 is disposed in the middle of the cooling chamber 101; a water inlet 108 and a water outlet 107 are disposed at the upper end and the lower end of the first movable joint 104, respectively; Preferably, one end of the baffle 109 is in contact with the inner wall of the cooling chamber 101 close to the first movable joint 104, and the other end of the baffle 109 is close to the other end of the cooling chamber 101, but there is a certain distance between them.

[0025] The water cooling module 100 further includes a water storage tank 105 , and a pump 106 is disposed on one side of the water storage tank 105 . The pump 106 is connected to a water inlet 108 through a pipeline, and a water outlet 107 is connected to the water storage tank 105 .

[0026] The air cooling module 200 includes a second rack 201 and a first rack 202, and both ends of the screw rod 205 pass through the middle of the second rack 201 and the first rack 202 respectively; the edges of the second rack 201 and the first rack 202 are both provided with a second movable joint 207, and the second movable joint 207 and the second rack 201 and the first rack 202 are both movably connected, and the upper and lower ends of the second movable joint 207 are both provided with a water pipe 208; A brake mechanism 209 is provided below the second placement rack 201; The first locking mechanism 204 and the second locking mechanism 206 are respectively disposed at the connection between the first placement rack 202 and the second placement rack 201 and the screw rod 205 .

[0027] Preferably, the first placement rack 202 has two movement modes. In the first mode, the first placement rack 202 and the second placement rack 201 jointly drive the cast rod to rotate. At this time, the roller 203f in the clamping mechanism 203 contacts the cast rod to clamp it; at the same time, the locking head 204b clamps the threaded joint 204d under the action of the third electric rod 204c. When the first placement rack 202 needs to drive the casting rod into the water cooling module 100, the roller 203f on the second placement rack 201 will loosen the casting rod, and the locking head 204b in the second locking mechanism 206 will also loosen the threaded joint 204d; the clamping head 203b of the first placement rack 202 will clamp the casting rod under the action of the first electric rod 203c, and the locking head 204b in the first locking mechanism 204 will clamp the threaded joint 204d under the action of the third electric rod 204c; at the same time, the brake mechanism 209 will clamp the edge of the second placement rack 201 to achieve the purpose of fixing the second placement rack 201; At this time, when the screw rod 205 rotates, the second placement rack 201 disengages from the threaded joint 204d in the second locking mechanism 206, and the second placement rack 201 no longer rotates with the screw rod 205; at the same time, due to the action of the casting rod, the first placement rack 202 does not rotate either, but the first placement rack 202 will follow the threaded joint 204d in the first locking mechanism 204 and move along the screw rod 205, thereby inserting the casting rod into the placement groove 102.

[0028] The clamping mechanism 203 includes a clamping ring 203a, in which a clamping head 203b and a roller 203f are arranged. A first electric rod 203c is arranged at the rear end of the clamping head 203b; the roller 203f is placed on the roller head 203e, and a second electric rod 203d is arranged at the rear end of the roller head 203e.

[0029] The first locking mechanism 204 includes a locking ring 204a, a locking head 204b is disposed inside the locking ring 204a, a third electric rod 204c is disposed at the rear end of the locking head 204b, and a threaded joint 204d is disposed between the locking heads 204b.

[0030] Preferably, the first locking mechanism 204 and the second locking mechanism 206 have the same specifications, wherein the threaded joint 204d is threadedly connected to the screw rod 205, and the locking ring 204a is fixed to the second placement rack 201 and the first placement rack 202; if the locking head 204b does not clamp the threaded joint 204d, the second placement rack 201 and the first placement rack 202 will not rotate with the screw rod 205.

[0031] The brake mechanism 209 includes a brake frame 209a, in which a groove for accommodating a brake screw 209c is provided. One end of the brake screw 209c is connected to the output end of a brake motor 209e, and the other end of the brake screw 209c is movably connected to the inner wall of the groove. A brake clamp 209b is provided on the brake screw 209c, and a stopper 209d is provided above one end of the brake frame 209a.

[0032] The driving module 300 includes a driving motor 301, and a driving gear 304 is provided at the output end of the driving motor 301. One side of the driving gear 304 is connected to a driving rod 302. The other end of the driving rod 302 is connected to one end of a driving track 305 through a first transmission head 306. The other end of the driving track 305 is connected to a second transmission head 205a at one end of a screw rod 205. The driving gear 304 and the driving rod 302 are connected through a one-way damping bearing 307. The driving gear 304 is also connected to the driven gear 103 via the transmission rack 303 .

[0033] A bracket 400 is provided below the water cooling module 100 and the air cooling module 200; a first bracket rod 401 and a second bracket rod 402 are provided on the bracket 400, an arc-shaped stopper 403 is provided on the first bracket rod 401, and a ball is provided on the side of the arc-shaped stopper 403 facing the water cooling module 100; The upper end of the second support rod 402 is movably connected to the second transmission head 205a.

[0034] The driving module 300 also has a second form, where the driving gear 304 at the output end of the driving motor 301 is connected to the driven gear 103 only through the transmission rack 303 .

[0035] Preferably, if the driving module 300 adopts the first form, that is, the air cooling module 200 is directly transmitted through the transmission track 305, at this time, the rotation speed of the air cooling module 200 is greater than the rotation speed of the water cooling module 100. In the optimal state, when the driving motor 301 stops, the placement groove 102 in the water cooling module 100 and the placement hole 210 of the air cooling module 200 are in an aligned state; in the first form of the driving module 300, the end of the screw rod 205 close to the second placement rack 201 is movably connected to the cooling bin 101.

[0036] In the second form of the driving module 300 , the rotation speed of the air cooling module 200 is consistent with the rotation speed of the water cooling module 100 , and at this time, the end of the screw rod 205 close to the second placement rack 201 is fixedly connected to the cooling chamber 101 .

[0037] Of the two water pipes 208 , the upper water pipe 208 is connected to the water inlet 108 , and the lower water pipe 208 is connected to the water outlet 107 .

[0038] When in use, first place the cast rod on the air cooling module 200, then start the drive motor 301 and the blower 500, and the driving gear 304 rotates clockwise. At this time, the water cooling module 100 and the air cooling module 200 both start to rotate, and the pump 106 will transport cooling water to the cooling bin 101, the second placement rack 201 and the first placement rack 202 through the first movable joint 104 and the second movable joint 207 respectively; when the cast rod on the air cooling module 200 is cooled to a temperature range, for example, 200-250 degrees Celsius, the first placement rack 202 is controlled to drive the cast rod to be inserted into the water cooling module 100. During the movement of the cast rod, the drive motor 301 is reversed. Due to the action of the one-way damping bearing 307, the driving gear 304 no longer rotates. At this time; the clamping mechanism 203 on the second placement rack 201 will pass through the roller 20 3f contacts with the cast rod, the clamping mechanism 203 on the first placement rack 202 will clamp the cast rod through the clamping head 203b, and at the same time, the locking head 204b in the second locking mechanism 206 will release the clamping of the threaded joint 204d, and the locking head 204b in the first locking mechanism 204 will keep clamping the threaded joint 204d, and the braking mechanism 209 will clamp the second placement rack 201. At this time, the second placement rack 201 and the cast rod cannot rotate, the first placement rack 202 will clamp one end of the cast rod and drive the cast rod to move into the water cooling module 100, and finally, the cast rod will enter the water cooling module 100. At this time, another batch of cast rods can be placed in the air cooling module 200, and the second batch of cast rods can be used to completely insert the cast rods of the previous batch into the placement slot 102; after that, the driving motor 301 repeats the above operation.

[0039] In summary, the device divides the cooling process of the cast rod into two steps. The first step is air cooling, which uses air cooling to quickly remove the temperature of the surface of the cast rod. During the air cooling process, the air cooling module 200 is rotated so that the cast rod on the air cooling module 200 can achieve a uniform cooling effect. After the temperature of the cast rod drops to a certain range, the air cooling module 200 is used to push the cast rod into the water cooling module 100, and the water cooling module 100 is used to water cool the cast rod. Similarly, during the water cooling process, the water cooling module 100 will also rotate to cool the cast rod. During the air cooling process of the air cooling module 200, the clamping point between the air cooling module 200 and the cast rod is cooled by the water pipe 208 to avoid the problem of thermal stress concentration at the clamping point.

[0040] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0041] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0042] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rapid cooling device for precooling a casting, characterized in that: include, A water cooling module (100) is used to water cool the cast rods. During the water cooling process, the cast rods are rotated so that the temperature is uniformly reduced. An air cooling module (200) is disposed at one end of the water cooling module (100), and is used to place the cast rods in the air and perform air cooling via a blower (500) on one side of the air cooling module (200); a first locking mechanism (204) and a second locking mechanism (206) are provided in the air cooling module (200), which respectively control the connection relationship between the first placement rack (202) and the second placement rack (201) and the screw rod (205), thereby controlling the movement or rotation of the first placement rack (202); A driving module (300) controls the water cooling module (100) and the air cooling module (200) to rotate at different speeds; A clamping mechanism (203) is provided in the placement holes (210) on the first placement rack (202) and the second placement rack (201), and the clamping mechanism (203) plays a certain clamping role on the cast rods.

2. The rapid cooling device for precooling a casting according to claim 1, characterized in that: The water cooling module (100) comprises a cooling bin (101), a driven gear (103) is provided on the outer side of one end of the cooling bin (101), and a first movable joint (104) is provided on the other end of the cooling bin (101); a plurality of through placement grooves (102) are provided in the middle of the water cooling module (100), and a baffle (109) is provided in the middle of the cooling bin (101); a water inlet (108) and a water outlet (107) are provided at the upper end and the lower end of the first movable joint (104), respectively; The water cooling module (100) further comprises a water storage tank (105), a pump (106) being provided on one side of the water storage tank (105), the pump (106) being connected to the water injection port (108) via a pipeline, and the water outlet (107) being connected to the water storage tank (105).

3. The rapid cooling device for precooling a casting according to claim 2, characterized in that: The air cooling module (200) comprises the second placement rack (201) and the first placement rack (202), and the two ends of the screw rod (205) respectively pass through the middle of the second placement rack (201) and the first placement rack (202); the edges of the second placement rack (201) and the first placement rack (202) are both provided with a second movable joint (207), the second movable joint (207) and the second placement rack (201) and the first placement rack (202) are all movably connected, and the upper end and the lower end of the second movable joint (207) are both provided with a water pipe (208); A braking mechanism (209) is provided below the second placement rack (201); The first locking mechanism (204) and the second locking mechanism (206) are respectively disposed at the connection between the first placement rack (202) and the second placement rack (201) and the screw rod (205).

4. The rapid cooling device for precooling a casting according to claim 3, characterized in that: The clamping mechanism (203) comprises a clamping ring (203a), a clamping head (203b) and a roller (203f) are arranged inside the clamping ring (203a), a first electric rod (203c) is arranged at the rear end of the clamping head (203b); the roller (203f) is placed on the roller head (203e), and a second electric rod (203d) is arranged at the rear end of the roller head (203e).

5. The rapid cooling device for precooling a casting according to claim 3, characterized in that: The first locking mechanism (204) comprises a locking ring (204a), a locking head (204b) is arranged inside the locking ring (204a), a third electric rod (204c) is arranged at the rear end of the locking head (204b), and a threaded joint (204d) is arranged between the locking heads (204b).

6. The rapid cooling device for precooling a casting according to claim 3, characterized in that: The brake mechanism (209) comprises a brake frame (209a), a groove for accommodating a brake screw (209c) being provided in the brake frame (209a), one end of the brake screw (209c) being connected to the output end of a brake motor (209e), the other end of the brake screw (209c) being movably connected to the inner wall of the groove, a brake clamp (209b) being provided on the brake screw (209c), and a stopper (209d) being provided above one end of the brake frame (209a).

7. The rapid cooling device for precooling a casting according to claim 3, characterized in that: The driving module (300) comprises a driving motor (301), wherein an output end of the driving motor (301) is provided with a driving gear (304), one side of the driving gear (304) is connected to a driving rod (302), the other end of the driving rod (302) is connected to one end of a driving crawler (305) via a first transmission head (306), and the other end of the driving crawler (305) is connected to a second transmission head (205a) at one end of the screw rod (205); the driving gear (304) and the driving rod (302) are connected via a one-way damping bearing (307); The driving gear (304) is also connected to the driven gear (103) via a transmission rack (303).

8. The rapid cooling device for precooling a casting according to claim 7, characterized in that: A bracket (400) is provided below the water cooling module (100) and the air cooling module (200); a first bracket rod (401) and a second bracket rod (402) are provided on the bracket (400); an arc-shaped limit head (403) is provided on the first bracket rod (401); and a ball is provided on a side of the arc-shaped limit head (403) facing the water cooling module (100); The upper end of the second support rod (402) is movably connected to the second transmission head (205a).

9. The rapid cooling device for precooling a casting according to claim 7, characterized in that: The driving module (300) also has a second form, wherein the driving gear (304) at the output end of the driving motor (301) is connected to the driven gear (103) only through a transmission rack (303).

10. The rapid cooling device for precooling a casting according to claim 9, characterized in that: Of the two water pipes (208), the water pipe (208) located at the top is in communication with the water inlet (108), and the water pipe (208) located at the bottom is in communication with the water outlet (107).

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