Multi-medium air cooling device for aluminum alloy die castings

Abstract

The invention relates to the technical field of aluminum alloy die casting cooling equipment, in particular to an aluminum alloy die casting multi-medium air cooling device which comprises a water cooling box, an air cooling box is fixedly connected to the inner side wall of the water cooling box through bolts, and a refrigeration box is fixedly connected to the top of the air cooling box through bolts. A dry ice containing cavity is formed in the top of the refrigeration box, and a cooling pipe penetrates through the interior of the dry ice containing cavity and the interior of the water cooling box. Cooling water in the water-cooling cooling box blocks a water seal of the inner space of the air-cooling cooling box, the content of air and oxygen in the air-cooling cooling box is reduced, the problem that an oxidation film is generated due to accelerated oxidation of air cooling of the aluminum alloy casting in a high-temperature state is solved, carbon dioxide generated after dry ice gasification and cooling capacity are used for air cooling of the aluminum alloy die casting, and the service life of the aluminum alloy die casting is prolonged. The problem that the aluminum alloy die casting is oxidized when making contact with oxygen in the high-temperature state can be effectively solved, and multi-medium cooling is achieved.

Description

Technical Field

[0001] The invention relates to the field of cooling equipment for aluminum alloy die castings, and in particular to a multi-medium air-cooling device for aluminum alloy die castings. Background Art

[0002] Aluminum alloy die casting is a kind of pressure casting part. It uses a pressure casting mechanical die casting machine equipped with a casting mold to pour heated liquid aluminum or aluminum alloy into the feed port of the die casting machine. The die casting machine is die-cast to cast aluminum parts or aluminum alloy parts of the shape and size limited by the mold. When the aluminum alloy die casting is just formed, it needs to be cooled as soon as possible due to the high temperature to avoid deformation and quality degradation. There are many ways to cool it at present, such as using a conveyor belt to transfer the die casting to a wind cooling mechanism for cooling, or hanging the die casting in front of a fan for wind cooling after the die casting is formed. However, the use of air cooling will make the aluminum on the surface of the aluminum alloy easy to oxidize. Aluminum is a relatively active metal and can naturally form an oxide film with a thickness of about 0.01 to 0.1 microns in the air. This oxide film is amorphous, thin and porous, and has poor corrosion resistance, thereby reducing the corrosion resistance and aesthetics of the aluminum alloy surface.

[0003] The prior art discloses some patent documents related to the cooling of aluminum alloy die-castings. The Chinese patent with application number 202111604901.8 discloses a multi-media air-cooled cooling device for aluminum alloy die-castings, including a conveyor belt for conveying aluminum alloy die-castings, the conveyor belt is provided with a hanging ring for hanging aluminum alloy, the end of the hanging ring is fixed to the surface of the conveyor belt through a connecting column, the conveyor belt is vertically arranged, and a coating cooling assembly is arranged below the conveyor belt, the coating cooling assembly includes an electrolytic cooling box at the lower end of the conveyor belt, the lower end of the conveyor belt extends into the electrolytic cooling box, the electrolytic cooling box stores electrolyte and the electrolyte height of the electrolytic cooling box is equal to the height of a group of hanging rings at the lower end of the conveyor belt, and a cooling box is arranged inside the conveyor belt, and a water-cooled cooling assembly and an air-cooled cooling assembly are arranged in the cooling box.

[0004] The prior art usually uses normal air to cool aluminum alloy die castings. However, since there is still oxygen in the air and the aluminum alloy castings are at a relatively high temperature, the aluminum alloy castings are very likely to undergo oxidation reactions with the oxygen in the air, resulting in the outer wall of the aluminum alloy casting being thin and porous, thereby reducing the corrosion resistance of the aluminum alloy castings.

[0005] Therefore, a multi-medium air-cooling cooling device for aluminum alloy die castings is proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a multi-medium air-cooling cooling device for aluminum alloy die castings.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: a multi-media air-cooling cooling device for aluminum alloy die castings, comprising a water-cooling cooling box, an air-cooling cooling box is fixedly connected to the inner wall of the water-cooling cooling box by bolts, and a refrigeration box is fixedly connected to the top of the air-cooling cooling box by bolts;

[0008] A dry ice placement cavity is provided on the top of the refrigeration box, a cooling pipe is passed through the dry ice placement cavity and the water-cooled cooling box, an airflow cavity is provided at the central position of the bottom of the refrigeration box, and a communicating through hole is provided at a position between the dry ice placement cavity and the airflow cavity in the refrigeration box, and an exhaust fan is fixedly connected to the airflow cavity by bolts;

[0009] The bottom of the refrigeration box is fixedly connected with an air guide cover by bolts at a position close to and just below the airflow cavity.

[0010] Preferably, a die-casting loading plate and a die-casting unloading plate are welded to the inner bottom of the water-cooled cooling box, the die-casting loading plate is located on one side of the die-casting unloading plate, and the angles between the die-casting loading plate and the die-casting unloading plate and the horizontal plane are both 60 degrees, and water leakage holes are provided on the tops of the die-casting loading plate and the die-casting unloading plate. A stepper motor is fixedly connected to the outer wall of one side of the air-cooled cooling box by bolts, and the stepper motor is fixedly connected to a rotating drum through the output end of one side thereof, a die-casting flap panel is welded on the outer wall of the rotating drum, and a drainage hole is provided on the outer wall of the die-casting flap panel.

[0011] Preferably, a tilting platform is fixedly connected to an outer wall of one side of the water-cooling cooling box by bolts, and two electric push rods are symmetrically fixedly connected to an outer wall of a side of the tilting platform away from the water-cooling cooling box by bolts, and the two electric push rods are fixedly connected to a push plate through the output end on one side thereof.

[0012] Preferably, a box cover is hinged on the top of the refrigeration box near the position just above the dry ice placement cavity, a one-way exhaust valve is embedded on one side outer wall of the air-cooled cooling box, and the bottom of the water-cooled cooling box is fixedly connected to a base by bolts.

[0013] Preferably, the water-cooled cooling box and the air-cooled cooling box are both hollow rectangular structures with one side open, and the interior of the water-cooled cooling box is filled with cooling water, and the bottom of the air-cooled cooling box is located at four-fifths of the height of the interior of the water-cooled cooling box.

[0014] Preferably, the rotating drum is located between the top of the die casting upper plate and the die casting lower plate, and the die casting flip plate will not contact the die casting upper plate and the die casting lower plate when it moves axially with the center of the rotating drum as the axis, and has a certain gap.

[0015] Preferably, the output end of the electric push rod is horizontal to the die casting loading plate, the push plate is perpendicular to the die casting loading plate, and the push plate performs linear motion above the die casting loading plate.

[0016] Preferably, the cross section of the cooling pipe is a rectangular ring structure with chamfers, and the cooling pipe passes through the inner bottom of the refrigeration box, and the cooling pipe passes through the inner center position of the water-cooled cooling box, and the cooling pipe is a copper pipe.

[0017] Preferably, a guide hole is opened on the inner side wall of the guide cover, and the guide cover is a hollow structure. The guide cover is composed of five hollow plates, and the five hollow plates form an angle of 150 degrees with each other.

[0018] Preferably, the refrigeration box and the box cover are locked together, and the inner side walls of the refrigeration box and the box cover are coated with a thermal insulation coating.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The cooling water inside the water-cooled cooling box blocks the water seal inside the air-cooled cooling box, reducing the air and oxygen content inside the air-cooled cooling box, avoiding the problem of accelerated oxidation of aluminum alloy castings under high temperature and the formation of oxide film. The aluminum alloy die-castings are air-cooled by using carbon dioxide and cold energy vaporized from dry ice, which can effectively avoid the problem of aluminum alloy die-castings being exposed to oxygen oxidation under high temperature and achieve multi-media cooling.

[0021] 2. The aluminum alloy die-casting is turned over by the axial movement of the die-casting flip panel, and then the bottom of the aluminum alloy die-casting is effectively cooled to ensure the comprehensive and efficient cooling of the aluminum alloy die-casting. The five-section guide cover can be used to blow carbon dioxide gas to the aluminum alloy die-casting in all directions, thereby realizing multi-sided cooling of the aluminum alloy die-casting and improving cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the water-cooling cooling box of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the air-cooled cooling box of the present invention;

[0025] Figure 4 It is a schematic diagram of the tilting platform structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the matching structure of the refrigeration box and the air guide cover of the present invention;

[0027] Figure 6This is a schematic diagram of the structure of the refrigeration box of the present invention (when the dry ice placement chamber is placed upward);

[0028] Figure 7 It is a schematic diagram of the structure of the refrigerator of the present invention (when the airflow cavity is placed upward);

[0029] Figure 8 It is a schematic diagram of the cooling pipe structure of the present invention.

[0030] In the figure: 1. Water-cooled cooling box; 2. Air-cooled cooling box; 3. Refrigeration box; 4. Die-casting loading plate; 5. Die-casting unloading plate; 6. Leakage hole; 7. Stepper motor; 8. Rotating drum; 9. Die-casting flip panel; 10. Drain hole; 11. Tilt table; 12. Electric push rod; 13. Push plate; 14. Dry ice placement chamber; 15. Cooling pipe; 16. Air flow chamber; 17. Through hole; 18. Exhaust fan; 19. Air guide cover; 20. Air guide hole; 21. Box cover; 22. One-way exhaust valve; 23. Base. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] like Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8The multi-medium air-cooling cooling device for aluminum alloy die-casting shown in the figure comprises a water-cooling cooling box 1, and an air-cooling cooling box 2 is fixedly connected to the inner wall of the water-cooling cooling box 1 by bolts. The water-cooling cooling box 1 and the air-cooling cooling box 2 are both hollow rectangular structures with one side open, and the interior of the water-cooling cooling box 1 is filled with cooling water, and the cooling water is first contacted with the aluminum alloy die-casting and then water-cooled, and a cooling medium is added. The bottom of the air-cooling cooling box 2 is located at four-fifths of the height inside the water-cooling cooling box 1. Through the setting of the four-fifths height, the bottom of the air-cooling cooling box 2 can be embedded in the interior of the water-cooling cooling box 1, so that the cooling water filled in the water-cooling cooling box 1 can be covered, so that the space inside the air-cooling cooling box 2 is isolated from the outside. Insulate, reduce the outside air from entering the air-cooled cooling box 2, thereby reducing the oxygen content in the air-cooled cooling box 2, and avoid the problem of accelerated oxidation of aluminum alloy castings during air cooling. A one-way exhaust valve 22 is embedded in the outer wall of one side of the air-cooled cooling box 2. The top of the air-cooled cooling box 2 is fixedly connected to the refrigeration box 3 by bolts. The top of the refrigeration box 3 is provided with a dry ice placement cavity 14. The dry ice placement cavity 14 and the interior of the water-cooled cooling box 1 are penetrated by a cooling pipe 15. The cross-section of the cooling pipe 15 is a rectangular ring structure with chamfers, and the cooling pipe 15 penetrates through the inner bottom of the refrigeration box 3, and the cooling pipe 15 penetrates through the inner central position of the water-cooled cooling box 1. The cooling pipe 15 is a copper pipe, and the copper cooling pipe 15 can ensure its own heat transfer Conductivity, and use the cooling pipe 15 to conduct the heat in the refrigeration box 3 and the water-cooled cooling box 1, and use the heat of the cooling water in the water-cooled cooling box 1 to heat and vaporize the dry ice in the dry ice placement chamber 14, and use the carbon dioxide containing cold energy to blow on the aluminum alloy die-casting to achieve air-cooling. An airflow chamber 16 is opened at the central position of the bottom of the refrigeration box 3, and a connecting through hole 17 is opened at the position between the dry ice placement chamber 14 and the airflow chamber 16 in the interior of the refrigeration box 3. The interior of the airflow chamber 16 is fixedly connected with an exhaust fan 18 by bolts, and a box cover 21 is hinged at the top of the refrigeration box 3 near the position just above the dry ice placement chamber 14. The refrigeration box 3 and the box cover 21 are locked and connected, and the locking connection is ensured The sealing of the connection between the refrigeration box 3 and the box cover 21 reduces the loss of cold and carbon dioxide. The inner walls of the refrigeration box 3 and the box cover 21 are coated with a thermal insulation coating, which can further reduce the loss of cold. The bottom of the refrigeration box 3 is fixedly connected with a guide cover 19 by bolts near the position directly below the airflow cavity 16. The inner wall of the guide cover 19 is provided with a guide hole 20, and the guide cover 19 is a hollow structure. The guide cover 19 is composed of five sections of hollow plates, and the five sections of hollow plates are at an angle of 150 degrees to each other. The five-section guide cover 19 can guide the carbon dioxide gas, so that the carbon dioxide gas is blown to the aluminum alloy die-casting in all directions, thereby realizing multi-faceted cooling of the aluminum alloy die-casting and improving the cooling efficiency;During operation, the prior art usually uses normal air to air-cool the aluminum alloy die castings. However, since there is still oxygen in the air and the aluminum alloy castings are at a relatively high temperature, the aluminum alloy castings are very likely to undergo oxidation reactions with the oxygen in the air, resulting in the aluminum alloy castings having thin outer walls and being porous, thereby reducing the corrosion resistance of the aluminum alloy castings. The present technical solution can solve the above problems. The specific working method is as follows: during use, dry ice is placed inside the dry ice placement chamber 14 and piled above the cooling pipe 15, and cooling water is filled into the water-cooled cooling box 1, and the aluminum alloy die castings enter the water. After the cooling box 1, the cooling water contacts the aluminum alloy die casting. Through the heat exchange, the heat on the aluminum alloy die casting is absorbed by the cooling water. Under the heat conductivity of the cooling pipe 15, part of the heat is transferred to the dry ice placement chamber 14 through the water-cooled cooling box 1. The dry ice is liquefied and gasified by the heat. The gasified carbon dioxide is sucked into the guide cover 19 by the exhaust fan 18 with cold energy, and finally blown to the aluminum alloy die casting through the guide hole 20. The aluminum alloy die casting is air-cooled by the carbon dioxide and cold energy after the dry ice is gasified, which can effectively avoid the problem of the aluminum alloy die casting being oxidized by oxygen when exposed to high temperature. ;

[0033] like Figure 1-4As shown, as a further embodiment of the present invention, a die casting loading plate 4 and a die casting lowering plate 5 are welded to the inner bottom of the water-cooled cooling box 1, the die casting loading plate 4 is located on one side of the die casting lowering plate 5, and the angles between the die casting loading plate 4 and the die casting lowering plate 5 and the horizontal plane are both 60 degrees, and the tops of the die casting loading plate 4 and the die casting lowering plate 5 are both provided with water leakage holes 6, and a stepper motor 7 is fixedly connected to the outer wall of one side of the air-cooled cooling box 2 by bolts, and the stepper motor 7 is fixedly connected to a rotating drum 8 through an output end on one side thereof, and the rotating drum 8 A die-casting flip panel 9 is welded on the outer wall of the rotating drum 8, which is located between the top of the die-casting loading plate 4 and the top of the die-casting unloading plate 5. When the die-casting flip panel 9 makes axial movement with the center of the rotating drum 8 as the axis, it will not contact the die-casting loading plate 4 and the die-casting unloading plate 5, and there is a certain gap. During the axial movement of the die-casting flip panel 9, the aluminum alloy die-casting on the die-casting loading plate 4 can be pushed to the top thereof, and the aluminum alloy die-casting can be pushed through the die-casting by utilizing the axial movement of the die-casting flip panel 9 and the gravity of the aluminum alloy die-casting itself. The blanking plate 5 is tilted for blanking, and the aluminum alloy die-casting on the die-casting flip panel 9 can be flipped by axial movement of the die-casting flip panel 9, so as to effectively cool the bottom of the aluminum alloy die-casting, thereby ensuring the comprehensive and efficient cooling of the aluminum alloy die-casting. A drainage hole 10 is provided on the outer wall of the die-casting flip panel 9, and a tilting platform 11 is fixedly connected to the outer wall of one side of the water-cooling cooling box 1 by bolts. Two electric push rods 12 are symmetrically fixedly connected to the outer wall of the tilting platform 11 away from the water-cooling cooling box 1 by bolts. The two electric push rods 12 are connected to the outer wall of the water-cooling cooling box 1 by bolts. A push plate 13 is fixedly connected to the output end on one side thereof, the output end of the electric push rod 12 is horizontal with the die casting loading plate 4, the push plate 13 is perpendicular to the die casting loading plate 4, and the push plate 13 moves linearly above the die casting loading plate 4, and the push plate 13 moves linearly along the die casting loading plate 4, and the push plate 13 can be used to push the aluminum alloy die casting to be tilted and fed, so that the aluminum alloy die casting is separated from the cooling water for air cooling after water cooling, and the multi-medium cooling water cooling is realized. The bottom of the cooling box 1 is fixedly connected with a base 23 by bolts;During operation, the aluminum alloy die-casting is placed inside the water-cooled cooling box 1 at a position above the die-casting loading plate 4, and the aluminum alloy die-casting is immersed in cooling water. The cooling water water-cools the aluminum alloy die-casting, and the aluminum alloy die-casting is cooled first. After the aluminum alloy die-casting falls onto the die-casting loading plate 4, the electric push rod 12 is controlled to drive the push plate 13 to move through the output end on one side thereof. During the movement, the push plate 13 contacts the aluminum alloy die-casting and pushes it to move upward along the die-casting loading plate 4. The stepping motor 7 is controlled to drive the rotating drum 8 to rotate through the output end on one side thereof, and the rotating drum 8 is moved upward. The die casting flip panel 9 moves axially, and the die casting flip panel 9 and the die casting loading plate 4 are controlled to be on the same plane. At this time, the aluminum alloy die casting is pushed to the die casting flip panel 9. As the die casting flip panel 9 continues to move axially, and under the action of the aluminum alloy die casting's own gravity, when the die casting flip panel 9 and the die casting unloading plate 5 are on the same plane, the aluminum alloy die casting on the die casting flip panel 9 is turned over and moved to the die casting unloading plate 5. The die casting unloading plate 5 guides the aluminum alloy die casting obliquely downward to the inside of the water-cooling cooling box 1, and the aluminum alloy die casting is water-cooled again. ;

[0034] The working principle of the present invention is as follows: during operation, the aluminum alloy die-casting is immersed in the cooling water in the water-cooling cooling box 1. After the aluminum alloy die-casting falls onto the die-casting loading plate 4, the electric push rod 12 is controlled to drive the push plate 13 to move through the output end on one side thereof. During the movement, the push plate 13 contacts the aluminum alloy die-casting and pushes it to move upward along the die-casting loading plate 4. The stepper motor 7 is controlled to drive the rotating drum 8 to rotate through the output end on one side thereof. The die-casting flip panel 9 on the rotating drum 8 moves axially. The die-casting flip panel 9 is controlled to be on the same plane as the die-casting loading plate 4. The aluminum alloy die-casting is pushed to the die-casting flip panel 9. Dry ice is placed inside the dry ice placement cavity 14 and piled up above the cooling pipe 15. The cooling water is filled into the water-cooling cooling box 1. The aluminum alloy die-casting enters the water-cooling After passing through the cooling box 1, the cooling water contacts the aluminum alloy die-castings. Through the exchange of heat and cold, the heat on the aluminum alloy die-castings is absorbed by the cooling water. Under the thermal conductivity of the cooling tube 15, part of the heat is transferred to the dry ice placement chamber 14 through the water-cooled cooling box 1. The dry ice is liquefied and gasified by the heat. The gasified carbon dioxide carries the cold air into the air guide cover 19 by the exhaust fan 18, and is finally blown to the aluminum alloy die-castings through the air guide holes 20. As the die-casting flip panel 9 continues to move axially, the aluminum alloy die-castings are cooled by air in all directions. When the die-casting flip panel 9 and the die-casting blanking plate 5 are on the same plane, the aluminum alloy die-castings on the die-casting flip panel 9 are turned over and moved to the die-casting blanking plate 5. The die-casting blanking plate 5 guides the aluminum alloy die-castings obliquely downward to the inside of the water-cooled cooling box 1 to complete the blanking.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-medium air-cooling cooling device for aluminum alloy die castings, comprising a water-cooling cooling box (1), characterized in that: An air-cooling cooling box (2) is fixedly connected to the inner wall of the water-cooling cooling box (1) by means of bolts, and a refrigeration box (3) is fixedly connected to the top of the air-cooling cooling box (2) by means of bolts; A dry ice placement cavity (14) is provided at the top of the refrigeration box (3), a cooling pipe (15) is passed through the inside of the dry ice placement cavity (14) and the water-cooled cooling box (1), an airflow cavity (16) is provided at the central position of the bottom of the refrigeration box (3), and a communicating through hole (17) is provided at a position between the dry ice placement cavity (14) and the airflow cavity (16) in the interior of the refrigeration box (3), and an exhaust fan (18) is fixedly connected to the inside of the airflow cavity (16) by bolts; The bottom of the refrigeration box (3) is fixedly connected to a flow guide cover (19) by bolts at a position just below the airflow cavity (16).

2. The multi-medium air-cooling cooling device for aluminum alloy die casting according to claim 1, characterized in that: A die-casting loading plate (4) and a die-casting unloading plate (5) are welded to the inner bottom of the water-cooled cooling box (1); the die-casting loading plate (4) is located on one side of the die-casting unloading plate (5); and the angles between the die-casting loading plate (4) and the die-casting unloading plate (5) and the horizontal plane are both 60 degrees; a water leakage hole (6) is provided on the top of the die-casting loading plate (4) and the die-casting unloading plate (5); a stepper motor (7) is fixedly connected to an outer wall of one side of the air-cooled cooling box (2) by bolts; the stepper motor (7) is fixedly connected to a rotating drum (8) through an output end on one side thereof; a die-casting flap panel (9) is welded to the outer wall of the rotating drum (8); and a drainage hole (10) is provided on the outer wall of the die-casting flap panel (9).

3. The multi-medium air-cooling cooling device for aluminum alloy die casting according to claim 1, characterized in that: A tilting platform (11) is fixedly connected to an outer wall of one side of the water-cooling cooling box (1) by means of bolts, and two electric push rods (12) are symmetrically fixedly connected to an outer wall of a side of the tilting platform (11) away from the water-cooling cooling box (1) by means of bolts, and the two electric push rods (12) are fixedly connected to a push plate (13) via output ends on one side thereof.

4. The multi-medium air-cooling cooling device for aluminum alloy die castings according to claim 1, characterized in that: A box cover (21) is hingedly connected to the top of the refrigeration box (3) near the position directly above the dry ice placement chamber (14); a one-way exhaust valve (22) is embedded on one side outer wall of the air-cooled cooling box (2); and the bottom of the water-cooled cooling box (1) is fixedly connected to a base (23) by bolts.

5. The multi-medium air-cooling cooling device for aluminum alloy die casting according to claim 1, characterized in that: The water-cooled cooling box (1) and the air-cooled cooling box (2) are both hollow rectangular parallelepiped structures with one side open, and the interior of the water-cooled cooling box (1) is filled with cooling water, and the bottom of the air-cooled cooling box (2) is located at four-fifths of the height inside the water-cooled cooling box (1).

6. The multi-medium air-cooling cooling device for aluminum alloy die castings according to claim 2, characterized in that: The rotating drum (8) is located between the top ends of the die-casting upper plate (4) and the die-casting lower plate (5); when the die-casting flip plate (9) moves axially with the center of the rotating drum (8) as the axis, it will not contact the die-casting upper plate (4) and the die-casting lower plate (5) and has a certain gap.

7. The multi-medium air-cooling cooling device for aluminum alloy die castings according to claim 3, characterized in that: The output end of the electric push rod (12) is horizontal to the die casting loading plate (4), the push plate (13) is perpendicular to the die casting loading plate (4), and the push plate (13) performs linear motion above the die casting loading plate (4).

8. The multi-medium air-cooling cooling device for aluminum alloy die castings according to claim 1, characterized in that: The cross section of the cooling pipe (15) is a rectangular ring structure with chamfered corners, and the cooling pipe (15) passes through the inner bottom of the refrigeration box (3), and the cooling pipe (15) passes through the inner central position of the water-cooled cooling box (1), and the cooling pipe (15) is a copper pipe.

9. The multi-medium air-cooling cooling device for aluminum alloy die castings according to claim 1, characterized in that: A flow guide hole (20) is provided on the inner side wall of the flow guide cover (19), and the flow guide cover (19) is a hollow structure. The flow guide cover (19) is composed of five hollow plates, and the five hollow plates form an angle of 150 degrees with each other.

10. The multi-medium air-cooling cooling device for aluminum alloy die castings according to claim 1, characterized in that: The refrigeration box (3) and the box cover (21) are locked and connected, and the inner side walls of the refrigeration box (3) and the box cover (21) are coated with a thermal insulation coating.

Images