A cooling system for aluminum alloy die casting and a control method thereof

Abstract

This invention relates to the field of aluminum alloy die casting technology, specifically to a cooling system and its control method for aluminum alloy die casting. The system includes a base, with a water pump fixedly connected inside. A cooling seat is fixedly connected to the top of the base, and a circulating water pipe is fixedly connected inside the cooling seat. A heat-conducting plate is fixedly connected to the top of the cooling seat. Columns are fixedly connected to the four corners of the top of the base. Two sets of mounting grooves are formed on the surface of each column, and fans are mounted on the surfaces of the columns on both sides. Two sets of mounting structures are provided inside each column. This invention, with its cooling seat, circulating water pipe, heat-conducting plate, and fans, achieves efficient and uniform heat dissipation, significantly improving cooling speed and uniformity. The mounting structures allow for easy installation and removal of the fans, enabling the system to adapt to the cooling needs of castings of different shapes and sizes, enhancing process adaptability and operational convenience.

Description

Technical Field

[0001] This invention belongs to the field of aluminum alloy die casting technology, and specifically relates to a cooling system and its control method for aluminum alloy die casting. Background Technology

[0002] Aluminum alloy die casting is a highly efficient and precise metal forming process widely used in the automotive, aerospace, and electronics industries. During die casting, high-temperature molten aluminum alloy is injected into the mold cavity. After forming, it needs to be rapidly cooled to shorten the production cycle, improve production efficiency, and ensure the uniformity of the internal structure of the casting. Traditional cooling methods often rely on single water cooling or air cooling, which has limited heat dissipation efficiency and is difficult to control in terms of cooling uniformity. This can easily lead to defects in the casting such as shrinkage cavities, thermal stress concentration, or deformation. Localized overheating of the mold can affect its service life and increase maintenance costs. Furthermore, existing cooling systems often have fixed structures, making it difficult to flexibly adjust the cooling intensity and location according to the shape of the casting or process requirements, resulting in poor process adaptability. Therefore, we propose a cooling system and its control method for aluminum alloy die casting. Summary of the Invention

[0003] In order to overcome the above-mentioned technical problems, the present invention aims to provide a cooling system and control method for aluminum alloy die casting, so as to solve the problems mentioned in the background art that traditional cooling methods mostly rely on single water cooling or air cooling, which has limited heat dissipation efficiency, and existing cooling systems often have fixed structures, making it difficult to flexibly adjust the cooling intensity and position according to the shape of the casting or process requirements, resulting in poor process adaptability.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cooling system for aluminum alloy die casting, comprising a base, a coolant tank fixedly connected inside the base, a filling port fixedly connected to the surface of the coolant tank, a drain port fixedly connected to one side of the coolant tank, a control panel fixedly connected to one side of the base, a water pump fixedly connected inside the base, a cooling seat fixedly connected to the top of the base, a circulating water pipe fixedly connected inside the cooling seat, a heat-conducting plate fixedly connected to the top of the cooling seat, a lower mold fixedly connected to the top of the heat-conducting plate, columns fixedly connected to the four corners of the top of the base, two sets of mounting grooves formed on the surface of the columns, a top plate fixedly connected to the top of the columns, and an air pump fixedly connected to the top of the top plate. The cylinder has an upper mold fixedly connected to its output end. Limiting blocks are fixedly connected to both sides of the upper mold. Guide rods are fixedly connected to both sides of the top of the base. Side plates are slidably connected to both sides of the top plate. Pull rods are fixedly connected to the surface of the side plates. Limiting plates are fixedly connected to the top of the side plates. Fans are installed on the surfaces of the columns on both sides. Mounting blocks are fixedly connected to the four corners of the fans. Two sets of mounting structures are provided inside the columns. Each mounting structure includes a sliding groove. A slider is slidably connected inside the sliding groove. A connecting rod is fixedly connected to the surface of the slider. A spring is sleeved on the outside of the connecting rod. A pull block is fixedly connected to the surface of the connecting rod. A rotating plate is rotatably connected to the outside of the connecting rod. A fixing bolt is rotatably connected inside the rotating plate.

[0005] Preferably, the surface of the drain port is provided with a solenoid valve, the drain port passes through one side of the base and is fixedly connected to the coolant tank, the two ends of the circulating water pipe are respectively fixedly connected to the output end of the water pump and the top of the coolant tank, the input end of the water pump is fixedly connected to the coolant tank, and the cross-sectional width of the lower mold is smaller than the cross-sectional width of the heat-conducting plate.

[0006] Preferably, the drain port, the water pump, the cylinder, and the fan are all electrically connected to the control panel, and the control panel is electrically connected to an external power source.

[0007] Preferably, the surface of the limiting block is provided with a circular groove, the limiting block is slidably connected to the surface of the guide rod, the side plate is slidably connected between the two sets of columns on the same side, the top of the top plate is provided with square grooves on both sides, the side plate is slidably connected in the square grooves, and the cross-sectional width of the limiting plate is greater than the cross-sectional width of the side plate.

[0008] Preferably, the fan is installed between two sets of columns on the same side, and the mounting block is slidably connected in the mounting groove.

[0009] Preferably, the connecting rod passes through the surface of the column and is fixedly connected to the slider, and the radius of the slider is larger than the radius of the connecting rod.

[0010] Preferably, the two ends of the spring are fixedly connected to the surface of the slider and the inner wall of the groove, respectively, and the inner surface of the spring does not contact the surface of the connecting rod.

[0011] Preferably, the surface of the rotating plate is provided with a second circular groove, and the rotating plate is rotatably connected to the outside of the connecting rod through the second circular groove. The radius of the pull block is larger than the radius of the connecting rod.

[0012] Preferably, the rotating plate, the mounting block, and the mounting groove are provided with a threaded groove, and the fixing bolt is rotatably connected in the threaded groove.

[0013] A control method for aluminum alloy die casting:

[0014] S1: Pull the pull rod to move the side plate upward in the square groove 1, leaving space for the fan installation. Insert the mounting blocks at the front and rear ends of the fan into the mounting grooves on the surface of the column. Pull the pull block outward to move the connecting rod outward from the slide groove, so that the slider compresses the spring. The pull block no longer presses the rotating plate against the surface of the column, allowing the rotating plate to rotate around the connecting rod. After rotating the rotating plate and aligning the fixing bolts on the rotating plate with the mounting blocks in the mounting groove, turn the fixing bolts into the threaded groove 1 in the rotating plate, mounting block and mounting groove to complete the fan installation.

[0015] S2: The upper mold is driven by a cylinder to move downwards and cooperate with the lower mold to complete the mold closing. Molten aluminum alloy is injected into the mold cavity for die casting. The water pump pumps the coolant in the coolant tank into the circulating water pipe. The heat in the lower mold is conducted downwards through the heat conduction plate. The lower mold is cooled by heat exchange between the circulating water pipe and the heat conduction plate. Then the coolant returns to the coolant tank from the circulating water pipe. The coolant can be added to the coolant tank through the fill port and discharged through the drain port, forming a complete circulation system. The fan can be turned on to cool the exposed part on the top of the heat conduction plate, so as to achieve rapid heat dissipation.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The cooling system and control method for aluminum alloy die casting are provided with a cooling seat, circulating water pipes, heat conduction plate and fan. By combining water cooling and air cooling into a composite cooling structure, the circulating water pipes in the cooling seat are used for water cooling, and the fan is used to air cool the exposed part of the heat conduction plate, which achieves efficient and uniform heat dissipation and significantly improves the cooling speed and uniformity.

[0018] 2. The cooling system and control method for aluminum alloy die casting are provided with an installation structure. By pulling the pull block, the connecting rod is moved, the rotating plate is rotated and fixed with fixing bolts, and the fan can be easily installed and disassembled. This allows the system to adapt to the cooling needs of castings of different shapes and sizes, enhancing process adaptability and ease of operation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a front view schematic diagram of the structure of the present invention;

[0021] Figure 3 This is a rear view schematic diagram of the structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the present invention in dynamic form;

[0023] Figure 5 This is an exploded view of the structure of the present invention;

[0024] Figure 6 This is an exploded view of the structure of the coolant tank, water pump, and cooling base of the present invention;

[0025] Figure 7 This is a side sectional view of the column and mounting structure of the present invention;

[0026] Figure 8 This is an exploded sectional view of the column, fan, and mounting structure of the present invention.

[0027] In the diagram: 1. Base; 11. Coolant tank; 12. Filler port; 13. Drain port; 14. Control panel; 15. Water pump; 16. Cooling seat; 17. Circulating water pipe; 18. Heat-conducting plate; 19. Lower mold; 2. Column; 21. Mounting groove; 3. Top plate; 31. Cylinder; 32. Upper mold; 33. Limiting block; 34. Guide rod; 35. Side plate; 36. Pull rod; 37. Limiting plate; 4. Fan; 41. Mounting block; 5. Mounting structure; 51. Slide groove; 52. Slider; 53. Connecting rod; 54. Spring; 55. Pull block; 56. Rotating plate; 57. Fixing bolt. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-8 One embodiment provided by the present invention:

[0030] A cooling system for aluminum alloy die casting includes a base 1, a coolant tank 11 fixedly connected inside the base 1, a filler port 12 fixedly connected to the surface of the coolant tank 11, a drain port 13 fixedly connected to one side of the coolant tank 11, a control panel 14 fixedly connected to one side of the base 1, a water pump 15 fixedly connected inside the base 1, a cooling seat 16 fixedly connected to the top of the base 1, a circulating water pipe 17 fixedly connected inside the cooling seat 16, a heat-conducting plate 18 fixedly connected to the top of the cooling seat 16, and a lower mold fixedly connected to the top of the heat-conducting plate 18. 19. Columns 2 are fixedly connected to the four corners of the top of the base 1. Two sets of mounting slots 21 are provided on the surface of the columns 2. A top plate 3 is fixedly connected to the top of the columns 2. A cylinder 31 is fixedly connected to the top of the top plate 3. An upper mold 32 is fixedly connected to the output end of the cylinder 31. Limiting blocks 33 are fixedly connected to both sides of the upper mold 32. Guide rods 34 are fixedly connected to both sides of the top of the base 1. Side plates 35 are slidably connected to both sides of the top plate 3. A pull rod 36 is fixedly connected to the surface of the side plate 35. A limiting plate 37 is fixedly connected to the top of the side plate 35. The surfaces of the columns 2 on both sides are... The system is equipped with a fan 4, with mounting blocks 41 fixedly connected to the four corners of the fan 4. The column 2 has two sets of mounting structures 5 inside, each including a slide groove 51. A slider 52 is slidably connected inside the slide groove 51, and a connecting rod 53 is fixedly connected to the surface of the slider 52. A spring 54 is sleeved on the outside of the connecting rod 53, and a pull block 55 is fixedly connected to the surface of the connecting rod 53. A rotating plate 56 is rotatably connected to the outside of the connecting rod 53, and a fixing bolt 57 is rotatably connected inside the rotating plate 56. A cooling seat 16, a circulating water pipe 17, a heat-conducting plate 18, and a fan are also included. Fan 4, through a composite cooling structure combining water cooling and air cooling, uses the circulating water pipe 17 in the cooling base 16 for water cooling, and works with the fan 4 to air cool the exposed part of the heat conduction plate 18, achieving efficient and uniform heat dissipation, significantly improving cooling speed and uniformity. An installation structure 5 is provided, which allows the fan 4 to be easily installed and removed by pulling the pull block 55 to move the connecting rod 53, rotating the rotating plate 56 and fixing it with the fixing bolts 57. This enables the system to adapt to the cooling needs of castings of different shapes and sizes, enhancing process adaptability and ease of operation.

[0031] Furthermore, a solenoid valve is provided on the surface of the drain port 13. The drain port 13 passes through one side of the base 1 and is fixedly connected to the coolant tank 11. The two ends of the circulating water pipe 17 are fixedly connected to the output end of the water pump 15 and the top of the coolant tank 11, respectively, forming a complete closed coolant circulation loop. The input end of the water pump 15 is fixedly connected to the coolant tank 11. The cross-sectional width of the lower mold 19 is smaller than the cross-sectional width of the heat conduction plate 18, which facilitates the diffusion of heat from the lower mold 19 to the heat conduction plate 18 and increases the cooling contact area.

[0032] Furthermore, the drain port 13, water pump 15, cylinder 31 and fan 4 are all electrically connected to the control panel 14, which is electrically connected to an external power source to provide a stable, reliable and continuous power supply for all electrical components in the system, ensuring that the entire device can operate continuously and stably for a long time.

[0033] Furthermore, a circular groove is provided on the surface of the limiting block 33. The limiting block 33 is slidably connected to the surface of the guide rod 34, ensuring that the trajectory of the upper mold 32 is strictly limited in the vertical direction when it moves up and down under the drive of the cylinder 31. This effectively prevents deviation or tilting during mold closing and improves the mold closing accuracy and stability. The side plate 35 is slidably connected between the two sets of columns 2 on the same side. Square grooves are provided on both sides of the top of the top plate 3. The side plate 35 is slidably connected in the square grooves, allowing the side plate 35 to move flexibly in the vertical direction according to the operation requirements, so as to facilitate the installation and maintenance of components such as the fan 4. The cross-sectional width of the limiting plate 37 is greater than the cross-sectional width of the side plate 35, which plays a physical limiting role and prevents the side plate 35 from accidentally coming out of the square groove during operation.

[0034] Furthermore, the fan 4 is installed between the two sets of columns 2 on the same side, which enhances the forced convection heat dissipation effect on the heat conduction plate 18 and the side of the mold. The mounting block 41 is slidably connected in the mounting groove 21, so that the fan 4 can be quickly and initially positioned and engaged.

[0035] Furthermore, the connecting rod 53 passes through the surface of the column 2 and is fixedly connected to the slider 52. The pulling force applied by the pull block 55 can be directly and effectively transmitted to the slider 52, causing it to move within the slide groove 51. The radius of the slider 52 is larger than that of the connecting rod 53. When the slider 52 moves within the slide groove 51, it has a larger contact area and guiding stability, and can withstand the compressive reaction force from the spring 54 without easily deviating or jamming, ensuring the smooth and reliable operation of the installation structure 5.

[0036] Furthermore, the two ends of the spring 54 are fixedly connected to the surface of the slider 52 and the inner wall of the groove 51, respectively, providing an elastic force for automatic reset of the entire connecting rod 53 assembly. When the external force is removed, the spring 54 pushes the slider 52 and the connecting rod 53 back to the initial position, realizing the automatic clamping of the rotating plate 56. The inner surface of the spring 54 does not contact the surface of the connecting rod 53, avoiding unnecessary friction between the spring 54 and the connecting rod 53 during compression and relaxation, reducing wear and energy loss, and ensuring the smooth operation and long service life of the spring 54.

[0037] Furthermore, the surface of the rotating plate 56 is provided with a circular groove 2. The rotating plate 56 is rotatably connected to the outside of the connecting rod 53 through the circular groove 2, so that the rotating plate 56 can rotate freely around the axis of the connecting rod 53. This allows its angle to be adjusted during installation so that the fixing bolt 57 can be precisely aligned with the threaded hole on the mounting block 41. The radius of the pull block 55 is larger than the radius of the connecting rod 53, preventing the rotating plate 56 from accidentally slipping off the end of the connecting rod 53 when not in operation.

[0038] Furthermore, the rotating plate 56, the mounting block 41 and the mounting groove 21 are provided with a threaded groove, and the fixing bolt 57 is rotatably connected in the threaded groove. Through this threaded connection, the rotating plate 56, the mounting block 41 and the column 2 are tightly fixed together, and the fan 4 is finally firmly positioned on the column 2.

[0039] A control method for aluminum alloy die casting:

[0040] S1: Pull the upper lever 36 to move the side plate 35 upward in the square groove 1, leaving space for the installation of the fan 4. Insert the mounting blocks 41 at the front and rear ends of the fan 4 into the mounting groove 21 on the surface of the column 2. Pull the pull block 55 outward to move the connecting rod 53 outward from the slide groove 51, so that the slider 52 compresses the spring 54. The pull block 55 no longer presses the rotating plate 56 against the surface of the column 2, so that the rotating plate 56 can rotate around the connecting rod 53. After rotating the rotating plate 56 and aligning the fixing bolt 57 on the rotating plate 56 with the mounting block 41 in the mounting groove 21, turn the fixing bolt 57 into the threaded groove 1 in the rotating plate 56, the mounting block 41 and the mounting groove 21 to complete the installation of the fan 4.

[0041] S2: The upper mold 32 is driven by the cylinder 31 to move down and cooperate with the lower mold 19 to complete the mold closing. The aluminum alloy liquid is injected into the mold cavity for die casting. The water pump 15 pumps the coolant in the coolant tank 11 into the circulating water pipe 17. The heat in the lower mold 19 is conducted downward through the heat conduction plate 18. The lower mold 19 is cooled by heat exchange between the circulating water pipe 17 and the heat conduction plate 18. Then the coolant returns to the coolant tank 11 from the circulating water pipe 17. The coolant can be added to the coolant tank 11 through the liquid inlet 12 and discharged through the liquid outlet 13, forming a complete circulation system. The fan 4 can be started to cool the exposed part of the top of the heat conduction plate 18 by air cooling, so as to achieve rapid heat dissipation.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cooling system for aluminum alloy die casting, comprising a base (1), characterized in that: A coolant tank (11) is fixedly connected inside the base (1). A filler port (12) is fixedly connected to the surface of the coolant tank (11). A drain port (13) is fixedly connected to one side of the coolant tank (11). A control panel (14) is fixedly connected to one side of the base (1). A water pump (15) is fixedly connected inside the base (1). A cooling seat (16) is fixedly connected to the top of the base (1). A circulating water pipe (17) is fixedly connected inside the cooling seat (16). A heat-conducting plate (18) is fixedly connected to the top of the cooling seat (16), and a lower mold (19) is fixedly connected to the top of the heat-conducting plate (18). A column (2) is fixedly connected to the four corners of the top of the base (1). Two sets of mounting grooves (21) are provided on the surface of the column (2). A top plate (3) is fixedly connected to the top of the column (2). A cylinder (31) is fixedly connected to the top of the top plate (3). An upper mold (32) is fixedly connected to the output end of the cylinder (31). The two sides of the base (1) are fixedly connected to limit blocks (33), the top two sides of the base (1) are fixedly connected to guide rods (34), the two sides of the top plate (3) are slidably connected to side plates (35), the surface of the side plates (35) is fixedly connected to pull rods (36), the top of the side plates (35) is fixedly connected to limit plates (37), the surface of the two columns (2) is installed with fans (4), the four corners of the fans (4) are fixedly connected to mounting blocks (41), the inside of the column (2) is provided with two sets of mounting structures (5), the mounting structure (5) includes a slide groove (51), the inside of the slide groove (51) is slidably connected to a slider (52), the surface of the slider (52) is fixedly connected to a connecting rod (53), the outside of the connecting rod (53) is sleeved with a spring (54), the surface of the connecting rod (53) is fixedly connected to a pull block (55), the outside of the connecting rod (53) is rotatably connected to a rotating plate (56), the inside of the rotating plate (56) is rotatably connected to a fixing bolt (57).

2. The cooling system for aluminum alloy die casting according to claim 1, characterized in that: The surface of the drain port (13) is provided with a solenoid valve. The drain port (13) passes through one side of the base (1) and is fixedly connected to the coolant tank (11). The two ends of the circulating water pipe (17) are fixedly connected to the output end of the water pump (15) and the top of the coolant tank (11) respectively. The input end of the water pump (15) is fixedly connected to the coolant tank (11). The cross-sectional width of the lower mold (19) is smaller than the cross-sectional width of the heat-conducting plate (18).

3. A cooling system for aluminum alloy die casting according to claim 1, characterized in that: The drain port (13), the water pump (15), the cylinder (31) and the fan (4) are all electrically connected to the control panel (14), and the control panel (14) is electrically connected to an external power source.

4. A cooling system for aluminum alloy die casting according to claim 1, characterized in that: The surface of the limiting block (33) is provided with a circular groove. The limiting block (33) is slidably connected to the surface of the guide rod (34). The side plate (35) is slidably connected between the two sets of columns (2) on the same side. The top plate (3) is provided with square grooves on both sides of the top. The side plate (35) is slidably connected in the square groove. The cross-sectional width of the limiting plate (37) is greater than the cross-sectional width of the side plate (35).

5. A cooling system for aluminum alloy die casting according to claim 1, characterized in that: The fan (4) is installed between the two sets of columns (2) on the same side, and the mounting block (41) is slidably connected in the mounting groove (21).

6. A cooling system for aluminum alloy die casting according to claim 1, characterized in that: The connecting rod (53) passes through the surface of the column (2) and is fixedly connected to the slider (52). The radius of the slider (52) is greater than the radius of the connecting rod (53).

7. A cooling system for aluminum alloy die casting according to claim 1, characterized in that: The two ends of the spring (54) are fixedly connected to the surface of the slider (52) and the inner wall of the groove (51) respectively, and the inner surface of the spring (54) does not contact the surface of the connecting rod (53).

8. A cooling system for aluminum alloy die casting according to claim 1, characterized in that: The rotating plate (56) has a circular groove 2 on its surface. The rotating plate (56) is rotatably connected to the outside of the connecting rod (53) through the circular groove 2. The radius of the pull block (55) is larger than the radius of the connecting rod (53).

9. A cooling system for aluminum alloy die casting according to claim 1, characterized in that: The rotating plate (56), the mounting block (41) and the mounting groove (21) are provided with a threaded groove, and the fixing bolt (57) is rotatably connected in the threaded groove.

10. A control method for aluminum alloy die casting, characterized in that: S1: Pull up the pull rod (36) to move the side plate (35) up in the square groove, leaving space for the installation of the fan (4). Insert the mounting blocks (41) at the front and rear ends of the fan (4) into the mounting groove (21) on the surface of the column (2). Pull the pull block (55) outward to move the connecting rod (53) outward from the slide groove (51), so that the slider (52) compresses the spring (54). The pull block (55) no longer presses the rotating plate (56) against the surface of the column (2), so that the rotating plate (56) can rotate around the connecting rod (53). After rotating the rotating plate (56) and aligning the fixing bolt (57) on the rotating plate (56) with the mounting block (41) in the mounting groove (21), turn the fixing bolt (57) into the threaded groove in the rotating plate (56), the mounting block (41) and the mounting groove (21) to complete the installation of the fan (4). S2: The upper mold (32) is driven down by the cylinder (31) to cooperate with the lower mold (19) to complete the mold closing. The aluminum alloy liquid is injected into the mold cavity for die casting. The water pump (15) pumps the coolant in the coolant tank (11) into the circulating water pipe (17). The heat in the lower mold (19) is conducted downward through the heat conduction plate (18). The lower mold (19) is cooled by the heat exchange between the circulating water pipe (17) and the heat conduction plate (18). Then the coolant returns from the circulating water pipe (17) to the coolant tank (11). The liquid inlet (12) can add coolant into the coolant tank (11), and the liquid outlet (13) can discharge coolant, forming a complete circulation system. The fan (4) can be started to cool the exposed part on the top of the heat conduction plate (18) to achieve rapid heat dissipation.

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