Cooling device and method for magnesium-aluminum alloy casting

Abstract

The invention relates to the technical field of cooling devices, in particular to a cooling device for magnesium-aluminum alloy casting and a method thereof.The cooling device comprises a base, a sand box and a cooling box are fixedly arranged above the base, a cooling cavity is formed in one side of the sand box, connecting cavities are formed in the two sides, corresponding to the cooling cavity, of the sand box correspondingly, and the connecting cavities communicate with the cooling cavity; a pump body is fixedly installed at the bottom of the base, one end of the pump body communicates with the interior of the cooling box, a water conveying pipe is fixedly installed between the pump body and the cooling cavity, and a sliding groove is formed in the side, away from the cooling cavity, of the sand box and fixedly provided with a T-shaped frame. During casting, the pump body drives cooling liquid to circulate, the cooling pipe and the heat conducting plate are matched, the mode that traditional standing cooling mainly depends on natural air cooling is changed, the cooling efficiency is greatly improved, the cooling liquid can rapidly take away heat of a sand core, the cooling speed of an internal casting is increased, and the casting quality is improved. And the time for waiting for box opening and sand removal after casting is completed is shortened, so that the working efficiency of the whole production process is improved.

Description

[0001] The present application relates to the technical field of cooling devices, in particular to a cooling device for magnesium-aluminum alloy casting and a method thereof. BACKGROUND

[0002] Metal casting is a process of melting metal into a liquid that meets certain requirements, pouring it into a mold, and after cooling and solidification, cleaning and processing to obtain a casting with a predetermined shape, size and performance. In the process of producing metal castings, the manufacturing process is as follows: first, make a wax mold, then assemble it into a wax tree, then attach a layer of mold shell outside the wax tree through multiple dipping processes, then after dewaxing, finally form a mold shell for casting. When casting, melt the raw material into the mold shell, cool and form in the mold shell, and after polishing and subsequent processing, the obtained object has a certain shape, size and performance.

[0003] The prior art has the following disadvantages: The existing cooling method is mostly static cooling, mainly through natural air cooling to cool the sand and the castings poured inside, which has low cooling efficiency. After the casting is poured, the sand box cools slowly, and it takes a long time to open the box and clean the sand, which reduces the work efficiency of the entire production process. SUMMARY

[0004] The present application provides the following technical solutions to overcome the shortcomings of the prior art: A cooling device for magnesium-aluminum alloy casting and a method thereof, comprising: A base is provided with a sand box and a cooling box on the top, a cooling cavity is formed in the inside of one side of the sand box, two connecting cavities are formed on both sides of the sand box corresponding to the cooling cavity, the connecting cavities are in communication with the cooling cavity, a pump body is fixedly installed at the bottom of the base, one end of the pump body is in communication with the inside of the cooling box, a water delivery pipe is fixedly installed between the pump body and the cooling cavity, a chute is formed on the side of the sand box away from the cooling cavity, and a T-shaped bracket is fixedly installed; A cooling assembly is arranged in the sand box, the cooling assembly comprises two groups of symmetrically arranged L-shaped plates, a plurality of cooling pipes are fixedly arranged in the inside of the L-shaped plates, a casting cavity is formed between the two groups of L-shaped plates, the two groups of L-shaped plates are symmetrically arranged and slidably arranged in the inside of the sand box, a heat conduction plate connected with the cooling pipes is embedded on the side of the two groups of L-shaped plates corresponding to each other, and a lead screw is rotatably installed on the side of the two groups of L-shaped plates away from each other; A connecting assembly is arranged between the cooling cavity and the connecting cavity, the connecting assembly comprises a pipe and a sliding plate, the sliding plate is slidably arranged in the inside of the pipe, an elastic plate is fixedly installed on one side of the sliding plate, and the other end of the elastic plate is fixedly connected with the side wall of the connecting cavity; As the improvement of the above technical scheme, the sand box is provided with a mounting hole corresponding to the position of the connecting cavity, and the insertion pipe is in sliding connection with the mounting hole.

[0005] As the improvement of the above technical scheme, a plurality of connecting pipes are fixedly installed between the cooling pipes, the L-shaped plate is provided with a first connecting hole corresponding to the position of the cooling pipe, and the insertion pipe penetrates through the first connecting hole and is inserted into the cooling pipe.

[0006] As the improvement of the above technical scheme, a sliding block in sliding connection with the sliding groove is fixedly arranged on the L-shaped plate, and a groove compatible with the T-shaped frame is formed in the L-shaped plate.

[0007] As the improvement of the above technical scheme, a plurality of limiting blocks are fixedly installed at the connecting position of the cooling cavity and the connecting cavity, the opposite sides of each two limiting blocks are respectively compatible with the outer surfaces of the insertion pipe and the sliding plate, the sliding plate is provided with a through hole corresponding to the position of the insertion pipe, a water inlet hole is formed in the side of the sliding plate close to the cooling cavity, and the water inlet hole is in communication with the cooling cavity and the through hole.

[0008] As the improvement of the above technical scheme, a connecting belt is fixedly arranged on the side of the sliding plate away from the water inlet hole, the other ends of a plurality of connecting belts are connected with a connecting plate, and the connecting plate is detachably connected with the sand box.

[0009] As the improvement of the above technical scheme, the bottom of the connecting pipe extends to the lower side of the base, a drain pipe is fixedly installed, the other end of the drain pipe is in communication with the inside of the cooling box, the second connecting hole is formed in the sand box and the base corresponding to the position of the connecting pipe, a cooling plate is fixedly installed in the inside of the cooling box, and a valve body is fixedly installed on the drain pipe.

[0010] As the improvement of the above technical scheme, the other ends of the two lead screws away from the L-shaped plate are in threaded penetration with the sand box, and a knob is fixedly arranged on the end of the lead screw penetrating the sand box.

[0011] The use method of the cooling device for magnesium-aluminum alloy casting comprises the following steps: S100, the insertion pipe and the sliding plate are inserted into the inside of the connecting cavity through the mounting hole, the insertion pipe is in communication with the cooling pipe, and the sliding plate is slid into the inside of the cooling cavity; S200, the sand core required for casting is placed into the inside of the casting cavity, the two lead screws are rotated, the two L-shaped plates are driven to move to the middle, the L-shaped plates are clamped with the T-shaped frame, and the heat conduction plate is attached to the sand core; S300, the alloy solution required for casting is added into the inside of the mold through the casting port, the pump body is started to deliver the cooling liquid in the inside of the cooling box to the inside of the cooling cavity, and the cooling liquid is delivered to the inside of the cooling pipe through the insertion pipe, so that the sand core during casting is cooled; S400 After the casting has cooled, the elastic plate pushes the sliding plate to move into the interior of the cooling chamber to seal the insertion tube.

[0012] The beneficial effects of this invention are: 1. By setting up a cooling component, the coolant is circulated by a pump during casting. In conjunction with the cooling pipes and heat-conducting plates, the traditional static cooling method, which mainly relies on natural air cooling, is changed, which greatly improves the cooling efficiency. The coolant can quickly remove the heat from the sand core, which speeds up the cooling of the casting inside and shortens the time for opening the mold and cleaning the sand after the casting is poured, thereby improving the efficiency of the entire production process.

[0013] 2. By setting up the connecting components, insert the tube and slide plate into the mounting hole. The elastic plate is compressed and contracts. After installation, the elastic plate releases its elasticity, pushing the end of the slide plate with the water inlet hole into the cooling chamber, connecting the cooling chamber with the cooling pipe. After the casting is cooled, the connecting plate is removed. The elastic plate releases its elasticity and pushes the slide plate into the cooling chamber, sealing the tube and stopping the coolant circulation. By rotating the screw, the two sets of L-shaped plates move in opposite directions, disengaging from the molding sand, making it easy to remove the molding sand and the cast part. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the sand box of the present invention; Figure 4 This is a schematic diagram of the connection component structure of the present invention; Figure 5 This is an exploded structural diagram of the connecting component of the present invention; Figure 6 This is a side view cross-sectional structural diagram of the present invention; Figure 7 This is a frontal cross-sectional view of the present invention; Figure 8 For the present invention Figure 6 Schematic diagram of the structure at point A; Figure 9 For the present invention Figure 7 Schematic diagram of the structure at point B.

[0015] Label: 1, base; 2, sand box; 201, T-shaped frame; 202, cooling cavity; 203, sliding slot; 204, screw rod; 3, cooling assembly; 301, L-shaped plate; 302, cooling pipe; 303, pouring cavity; 304, heat conduction plate; 305, connecting pipe; 306, first connecting hole; 307, sliding block; 308, groove; 4, connecting cavity; 401, limiting block; 402, mounting hole; 5, connecting assembly; 501, insertion pipe; 502, sliding plate; 503, elastic plate; 504, through hole; 505, water inlet hole; 506, connecting belt; 507, connecting plate; 6, cooling box; 601, cooling plate; 602, pump body; 603, water delivery pipe; 604, drain pipe; 605, second connecting hole. DETAILED DESCRIPTION

[0016] The present application is described in greater detail by the specific working examples below, from which other advantages and embodiments of the present application will become readily apparent to those of ordinary skill in the art and knowledge. The present application can be carried out or implemented by other different embodiments or applications, and the details in the present specification can be modified or changed based on different views and applications without departing from the spirit of the present application.

[0017] Please refer to Figures 1-9 The present application provides a technical solution: Embodiment one

[0018] The cooling device for magnesium-aluminum alloy pouring comprises a base 1, a cooling assembly 3 arranged in a sand box 2, and a connecting assembly 5 arranged between a cooling cavity 202 and a connecting cavity 4.

[0019] Specifically, the base 1, the upper side of the base 1 is fixedly provided with a sand box 2 and a cooling box 6, the inside of one side of the sand box 2 is provided with a cooling cavity 202, the two sides of the sand box 2 corresponding to the cooling cavity 202 are respectively provided with a connecting cavity 4, the connecting cavity 4 is communicated with the cooling cavity 202, the bottom of the base 1 is fixedly provided with a pump body 602, one end of the pump body 602 is communicated with the inside of the cooling box 6, the pump body 602 and the cooling cavity 202 are fixedly provided with a water delivery pipe 603, the side of the sand box 2 away from the cooling cavity 202 is provided with a sliding groove 203, and a T-shaped frame 201 is fixedly installed, the inside of the sand box 2 is provided with a cooling assembly 3, the cooling assembly 3 comprises two groups of symmetrically arranged L-shaped plates 301, the inside of the L-shaped plate 301 is fixedly provided with a plurality of cooling pipes 302, the two groups of L-shaped plates 301 form a casting cavity 303, the two groups of L-shaped plates 301 are symmetrically arranged and slidably arranged in the inside of the sand box 2, the side corresponding to the two groups of L-shaped plates 301 is embedded with a heat conduction plate 304 connected with the cooling pipe 302, the side away from the two groups of L-shaped plates 301 is rotatably provided with a lead screw 204, the connecting assembly 5 comprises a pipe 501 and a sliding plate 502, the sliding plate 502 is slidably arranged in the inside of the pipe 501, one side of the sliding plate 502 is fixedly provided with an elastic plate 503, the other end of the elastic plate 503 is fixedly connected with the side wall of the connecting cavity 4.

[0020] In use, the shaped sand after molding is placed between the two groups of L-shaped plates 301, then the two groups of lead screws 204 are rotated, the two groups of lead screws 204 drive the two groups of L-shaped plates 301 to move towards the middle, so that the L-shaped plates 301 are clamped with the T-shaped frame 201, and the heat conduction plate 304 is in close contact with the outer surface of the sand, then the alloy solution required for casting is added into the inner cavity of the sand, then the pipe 501 and the sliding plate 502 are installed through the installation hole 402, so that the pipe 501 is communicated with the cooling pipe 302, and one end of the sliding plate 502 is located in the inside of the cooling cavity 202, then the pump body 602 is started, the cooling liquid in the cooling box 6 is extracted and delivered into the inside of the cooling cavity 202, and then flows into the inside of the cooling pipe 302 through the pipe 501, and the heat on the surface of the sand is transmitted to the cooling liquid through cooperation with the heat conduction plate 304, so as to increase the cooling speed of the casting in the sand, and improve the working efficiency of casting. Example two

[0021] Please refer to Figure 1 、 Figure 7 、 Figure 9 , on the basis of example one, in order to further ensure the communication of the cooling cavity 202 and the cooling pipe 302, the preferred specific embodiment of the installation hole 402 is given.

[0022] The installation hole 402 is slidably connected with the pipe 501.

[0023] When the cast is cooled, the insertion tube 501 and the sliding plate 502 are inserted into the mounting hole 402, the elastic plate 503 is compressed and shrunk, and after the installation is completed, the elastic force of the elastic plate 503 is released, pushing the end of the sliding plate 502 with the water inlet hole 505 into the cooling cavity 202, so that the cooling cavity 202 is connected with the cooling pipe 302. Example three

[0024] Please refer to Figure 2 , Figure 6 , Figure 8 , on the basis of example one in order to further ensure the connectivity between the plurality of cooling pipes 302, the preferred specific embodiment of the connecting pipe 305 is given.

[0025] The connecting pipe 305 is fixedly installed between the plurality of cooling pipes 302, the first connecting hole 306 is opened on the L-shaped plate 301 corresponding to the position of the cooling pipe 302, and the insertion tube 501 penetrates the first connecting hole 306 and is inserted with the cooling pipe 302.

[0026] By setting the connecting pipe 305, the plurality of cooling pipes 302 can be connected with each other, and by setting the first connecting hole 306, the insertion tube 501 can be inserted into the inside of the L-shaped plate 301 and connected with the cooling pipe 302. Example four

[0027] Please refer to Figure 1 , Figure 3 , on the basis of example one in order to further ensure the stability of the L-shaped plate 301 when moving, the preferred specific embodiment of the sliding block 307 is given.

[0028] The sliding block 307 is fixedly arranged on the L-shaped plate 301 and slidably connected with the sliding groove 203, and the recess 308 is opened on the L-shaped plate 301 and matched with the T-shaped frame 201.

[0029] When the L-shaped plate 301 slides in the inside of the sand box 2, the sliding groove 203 cooperates with the sliding block 307, and the recess 308 on the L-shaped plate 301 is matched with the T-shaped frame 201, which limits and stabilizes the movement of the L-shaped plate 301, and ensures the accuracy of the position of the L-shaped plate 301 during casting and cooling. Example five

[0030] Please refer to Figure 7 , Figure 9 , on the basis of example one in order to further ensure the connection between the cooling cavity 202 and the connecting cavity 4, the preferred specific embodiment of the limiting block 401 is given.

[0031] The connecting part of the cooling cavity 202 and the connecting cavity 4 is fixedly installed with multiple sets of limiting blocks 401, and the opposite sides of each two sets of limiting blocks 401 correspond to the outer surfaces of the insertion pipe 501 and the sliding plate 502 respectively. The sliding plate 502 is provided with a through hole 504 at the position corresponding to the insertion pipe 501, and the sliding plate 502 is provided with a water inlet hole 505 on the side close to the cooling cavity 202, and the water inlet hole 505 is in communication with the cooling cavity 202 and the through hole 504 respectively.

[0032] By arranging the limiting blocks 401, when the sliding plate 502 is inserted into the cooling cavity 202, the outer surfaces of the insertion pipe 501 and the sliding plate 502 are respectively fitted with the limiting blocks 401, so that the cooling liquid in the cooling cavity 202 flows into the inside of the cooling pipe 302 through the water inlet hole 505 and the through hole 504, and the outer surface of the sand is cooled. Embodiment six

[0033] Please refer to Figure 1 , Figure 4 , Figure 5 On the basis of the embodiment one, in order to further ensure the sliding of the sliding plate 502, the preferred specific embodiment of the connecting belt 506 and the connecting plate 507 is given.

[0034] The side of the sliding plate 502 away from the water inlet hole 505 is fixedly provided with the connecting belt 506, and the other end of the multiple sets of connecting belts 506 is connected with the connecting plate 507, and the connecting plate 507 is detachably connected with the sand box 2.

[0035] By arranging the connecting belt 506 and the connecting plate 507, when the elastic plate 503 pushes the sliding plate 502 to move, the connecting plate 507 is connected with the sand box 2, and the sliding plate 502 is limited through the connecting belt 506, so that the through hole 504 corresponds to the cooling pipe 302. After the casting is completed, the connecting plate 507 is removed, the limiting of the sliding plate 502 is cancelled, and the elastic plate 503 is released to push the sliding plate 502 to insert into the inside of the cooling cavity 202, the insertion pipe is closed, and the circulation of the cooling liquid is terminated. Embodiment seven

[0036] Please refer to Figure 3 , Figure 6 On the basis of the embodiment one, in order to further ensure the circulation use of the cooling liquid, the preferred specific embodiment of the drain pipe 604 is given.

[0037] The bottom of the connecting pipe 305 extends to the lower side of the base 1, and is fixedly installed with the drain pipe 604, the other end of the drain pipe 604 is in communication with the inside of the cooling box 6, and the base 1 and the sand box 2 are both provided with a second connecting hole 605 at the position corresponding to the connecting pipe 305, the inside of the cooling box 6 is fixedly installed with the cooling plate 601, and the drain pipe 604 is fixedly installed with a valve body.

[0038] When cooling, the pump body 602 is started, the cooling liquid enters the cooling cavity 202 through the water pipe 603, flows into the cooling pipe 302 through the water inlet hole 505 and the through hole 504, is absorbed by the heat conduction plate 304 to absorb the heat of the sand core, and then flows back to the cooling box 6 through the drain pipe 604, is cooled by the cooling plate 601, and is recycled. According to actual needs, the cooling parameters of the cooling liquid can be adjusted to improve the yield of the castings and the production efficiency. Embodiment eight

[0039] Please refer to Figure 1 、 Figure 2 In order to further ensure that the L-shaped plate 204 can realize the moving function on the basis of the embodiment one, the preferred specific embodiment of the lead screw 204 is given.

[0040] The ends of the two groups of lead screws 204 away from the L-shaped plate 301 are threaded through the sand box 2, and the ends of the lead screws 204 threaded through the sand box 2 are fixedly provided with knobs.

[0041] The lead screws 204 are rotated by rotating the knobs, and the L-shaped plates 301 are moved in the sand box 2, so that the ends of the two groups of L-shaped plates 301 close to each other are clamped with the T-shaped frame 201, and the pouring cavity 303 is formed. After cooling is completed, the L-shaped plates 301 are separated from the sand by reversely rotating the lead screws 204, so that the sand and the castings poured are taken out. Embodiment nine

[0042] In order to cooperate with the embodiment one, a use method of the cooling device for magnesium-aluminum alloy pouring is also provided, which is applied to the cooling device for magnesium-aluminum alloy pouring in any one of the embodiments, and includes the following steps. S100, the insertion pipe 501 and the sliding plate 502 are inserted into the inside of the connecting cavity 4 through the mounting hole 402, so that the insertion pipe 501 is in communication with the cooling pipe 302, and the sliding plate 502 slides into the inside of the cooling cavity 202; S200, the sand core required for pouring is placed in the inside of the pouring cavity 303, the two groups of lead screws 204 are rotated, the two groups of lead screws 204 respectively drive the two groups of L-shaped plates 301 to move to the middle, until the L-shaped plates 301 are clamped with the T-shaped frame 201, and the heat conduction plates 304 are attached to the sand core; S300, the alloy solution required for pouring is added into the mold through the pouring port, the pump body 602 is started to deliver the cooling liquid in the cooling box 6 to the inside of the cooling cavity 202, and the cooling liquid is delivered to the inside of the cooling pipe 302 through the insertion pipe 501, so as to cool the sand core during pouring.

[0043] S400, after the castings are cooled, the elastic plate 503 pushes the sliding plate 502 to move to the inside of the cooling cavity 202, and the insertion pipe 501 is closed.

[0044] The above examples are only used to illustrate the technical solutions of the present application, but not to limit the present application. Any person skilled in the art can make modifications or changes to the above examples without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present application should be covered by the claims of the present application.

Claims

1. A cooling device for magnesium-aluminum alloy casting and a method thereof, characterized by, The utility model relates to a sand box cooling device, including: The base (1) is fixed with the sand box (2) and cooling box (6) on the top, the sand box (2) is internally provided with cooling cavity (202) on one side, the sand box (2) is provided with connecting cavity (4) on both sides of cooling cavity (202) correspondingly, the connecting cavity (4) is communicated with cooling cavity (202), the bottom of base (1) is fixedly installed pump body (602), one end of pump body (602) is communicated with the inside of cooling box (6), pump body (602) is fixedly installed water delivery pipe (603) between cooling cavity (202), the sand box (2) is provided with sliding slot (203) on the side away from cooling cavity (202) and is fixedly installed T-shaped frame (201); Cooling assembly (3) is arranged in the sand box (2), the cooling assembly (3) includes two groups of symmetrically arranged L-shaped plates (301), the inside of L-shaped plate (301) is fixedly provided with a plurality of cooling pipes (302), the pouring cavity (303) is formed between the two groups of L-shaped plates (301), the two groups of L-shaped plates (301) are symmetrically arranged and are slidably arranged in the sand box (2), the side corresponding to the two groups of L-shaped plates (301) is embedded with the heat conduction plate (304) connected with the cooling pipe (302), the side away from the two groups of L-shaped plates (301) is rotatably installed screw rod (204); Connecting assembly (5) is arranged between cooling cavity (202) and connecting cavity (4), the connecting assembly (5) includes cannula (501) and sliding plate (502), the sliding plate (502) is slidably arranged in the inside of cannula (501), the one side of sliding plate (502) is fixedly installed elastic plate (503), the other end of elastic plate (503) is fixedly connected with the side wall of connecting cavity (4).

2. The cooling device for magnesium-aluminum alloy casting according to claim 1, characterized by: The sand box (2) is provided with mounting hole (402) at the position corresponding to connecting cavity (4), the cannula (501) is slidably connected with mounting hole (402).

3. The cooling device for magnesium-aluminum alloy casting according to claim 1, characterized by: A plurality of connecting pipes (305) are fixedly installed between the cooling pipes (302), the L-shaped plate (301) is provided with a first connecting hole (306) at the position corresponding to the cooling pipe (302), the cannula (501) penetrates the first connecting hole (306) and is inserted with the cooling pipe (302).

4. The cooling device for magnesium-aluminum alloy casting according to claim 1, characterized by: The L-shaped plate (301) is fixedly provided with a sliding block (307) slidably connected with the sliding slot (203), and the L-shaped plate (301) is provided with a groove (308) matched with the T-shaped frame (201).

5. The cooling device for magnesium-aluminum alloy casting according to claim 1, characterized by: A plurality of limiting blocks (401) are fixedly installed at the connecting part of cooling cavity (202) and connecting cavity (4), the outer surfaces of the cannula (501) and the sliding plate (502) are matched with the two groups of limiting blocks (401) corresponding to the one side respectively, the sliding plate (502) is provided with a through hole (504) at the position corresponding to the cannula (501), the sliding plate (502) is provided with a water inlet hole (505) on the side close to the cooling cavity (202), and the water inlet hole (505) is communicated with the cooling cavity (202) and the through hole (504) respectively.

6. The cooling device for magnesium-aluminum alloy casting according to claim 1, characterized by: The side away from the water inlet hole (505) of the sliding plate (502) is fixedly provided with a connecting belt (506), the other end of a plurality of groups of the connecting belt (506) is connected with a connecting plate (507), and the connecting plate (507) is detachably connected with the sand box (2).

7. The cooling device for magnesium-aluminum alloy casting according to claim 3, characterized by: The bottom of the connecting pipe (305) extends below the base (1), and a drain pipe (604) is fixedly installed, the other end of the drain pipe (604) is connected with the inside of the cooling box (6), the base (1) and the sand box (2) are both provided with a second connecting hole (605) corresponding to the position of the connecting pipe (305), the inside of the cooling box (6) is fixedly installed with a cooling plate (601), and the drain pipe (604) is fixedly installed with a valve body.

8. The cooling device for magnesium-aluminum alloy casting according to claim 1, characterized by: The ends of the two groups of the lead screws (204) away from the L-shaped plates (301) are both threaded through the sand box (2), and the ends of the lead screws (204) threaded through the sand box (2) are fixedly provided with knobs.

9. A method of using a cooling device for magnesium-aluminum alloy casting, applied to the cooling device for magnesium-aluminum alloy casting according to any one of claims 1 to 8, characterized in that, The method comprises the following steps: S100, the cannula (501) and the sliding plate (502) are inserted into the inside of the connecting cavity (4) through the mounting hole (402), so that the cannula (501) is connected with the cooling pipe (302), and at the same time, the sliding plate (502) is slid into the inside of the cooling cavity (202); S200, the sand core required for casting is placed in the inside of the casting cavity (303), the two groups of lead screws (204) are rotated, the two groups of lead screws (204) respectively drive the two groups of L-shaped plates (301) to move to the middle, until the T-shaped frame (201) is clamped, and the heat conduction plate (304) is attached to the sand core; S300, the alloy solution required for casting is added into the mold through the casting port, the pump body (602) is started to deliver the cooling liquid in the cooling box (6) to the inside of the cooling cavity (202), and the cooling liquid is delivered to the inside of the cooling pipe (302) through the cannula (501), so that the sand core during casting is cooled; S400, after the cooling of the castings is completed, the elastic plate (503) pushes the sliding plate (502) to move to the inside of the cooling cavity (202), and the cannula (501) is closed.

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