A rapid cooling device for an aluminum alloy housing die casting

Abstract

This utility model discloses a rapid cooling device for die-cast aluminum alloy shells, belonging to the field of metal manufacturing. The rapid cooling device includes a liquid storage tank, a feeding plate fixed to one side of the top of the tank, a first guide plate fixed to one side of the feeding plate, and a second guide plate slidably connected to one side of the first guide plate. The liquid storage tank is equipped with a lifting assembly for moving the second guide plate up and down. A spray assembly is provided on the first guide plate, and multiple push rods, each with a Z-shaped structure, are equidistantly arranged laterally between the spray assembly and the first guide plate. The liquid storage tank is equipped with a control assembly and a drive assembly, the control assembly driving the multiple push rods to rotate synchronously. This utility model uses multiple push rods to push the workpiece onto the first and second guide plates, achieving continuous cooling of the die-cast aluminum alloy shell workpiece, reducing manual intervention, improving production efficiency, and making it more suitable for mass industrial production.

Description

Technical Field

[0001] This utility model relates to the field of metal manufacturing, and in particular to a rapid cooling device for die-cast aluminum alloy shells. Background Technology

[0002] Aluminum alloy die casting is a technology that produces precision metal parts using high-pressure casting. It features high precision and high material utilization, and its products are widely used in the automotive, electronics, home appliance, and communications industries. Due to the limitations of the process, aluminum alloy die castings typically require cooling during production.

[0003] Chinese patent application number 202122327023.1 discloses a cooling device for forming magnesium-aluminum alloy die-cast parts. This patent mainly includes a base, a cooling box fixedly connected to the top of the base, a storage platform fixedly connected to the top of the base and the front of the cooling box, a feeding assembly on the top of the cooling box, a permeable plate fixedly connected between the two sides of the inner wall of the cooling box, a refrigeration box fixedly connected to the bottom of one side of the cooling box, a water source in the refrigeration box, and a cooling assembly on the top of the permeable plate. This patent, through the feeding assembly, allows the high-temperature magnesium-aluminum alloy die-cast parts on the storage platform to be moved to the cooling position without manual feeding by personnel, reducing the dangers associated with feeding.

[0004] However, when the aforementioned patent uses a U-shaped frame to push the casting into the cooling chamber and then closes the chamber door for cooling, operators still need to open the chamber door and remove the cooled casting after cooling is complete. The casting, waiting to be cooled, is then pushed back into the cooling chamber for the next cooling cycle. This creates an intermittent cycle of "cooling – waiting for manual handling – re-cooling," resulting in low equipment utilization. Furthermore, when processing large batches of castings, the frequent opening and closing of the chamber door and manual handling negatively impact the overall operating efficiency of the production line, failing to adequately meet the industrial demand for automated and continuous processing. Utility Model Content

[0005] This invention provides a rapid cooling device for die-cast aluminum alloy housings, which can solve the problems of intermittent operation cycles, low equipment utilization, and impact on the overall operating efficiency of the production line when processing large batches of castings in existing rapid cooling devices for die-cast aluminum alloy housings.

[0006] A rapid cooling device for die-cast aluminum alloy housings includes a liquid storage tank. A feeding plate is fixedly provided on one side of the top of the liquid storage tank. A first guide plate is fixedly provided on one side of the feeding plate. A second guide plate is slidably connected to one side of the first guide plate. The liquid storage tank is provided with a lifting assembly for driving the second guide plate to move up and down.

[0007] The first guide plate is equipped with a spray assembly, and multiple push rods are equidistantly arranged laterally between the spray assembly and the first guide plate. Each push rod has a Z-shaped structure. The liquid storage tank is equipped with a control assembly and a drive assembly. The control assembly is used to drive the multiple push rods to rotate synchronously, and the drive assembly is used to drive the multiple push rods to move horizontally synchronously.

[0008] Preferably, the spray assembly is provided in multiple ways, and each spray assembly includes an infusion branch pipe and multiple nozzles uniformly fixed at the bottom of the infusion branch pipe.

[0009] Preferably, the top of the liquid storage tank is provided with a mounting frame, the control component includes a rack sliding on the mounting frame, a first cylinder fixed on the mounting frame and a plurality of gears, the push rod is rotatably connected to the mounting frame, the gears are fixed to the corresponding ends of the push rods, and each gear is meshed with the rack, and the drive component drives the mounting frame to move horizontally.

[0010] Preferably, the drive assembly includes a fixed plate fixed to one side of the liquid storage tank and a second cylinder fixed to the top of the fixed plate.

[0011] Preferably, the lifting assembly includes a third cylinder fixed to one side of the liquid storage tank and a connecting frame fixed to the top of the drive end of the third cylinder, and the second guide plate is fixed to the connecting frame.

[0012] Preferably, both the first guide plate and the second guide plate have through holes near their edges.

[0013] Preferably, a water pump is provided on one side of the liquid storage tank, and a main infusion pipe is fixed at the outlet of the water pump, with each branch pipe connected to the main infusion pipe.

[0014] Preferably, the nozzle is an atomizing nozzle.

[0015] Preferably, the drive assembly further includes a guide rail fixed to the top of the fixed plate, a plurality of support rods evenly fixed to the bottom of the mounting frame, and a plurality of slide rails sliding on the guide rail. The bottom end of the support rod is fixedly connected to the slide rail, and the drive end of the second cylinder is fixedly connected to one of the support rods.

[0016] Preferably, the first guide plate, the second guide plate, the push rod, and the connecting frame are all made of stainless steel.

[0017] This utility model provides a rapid cooling device for die-cast aluminum alloy housings, which has the following beneficial effects:

[0018] 1. The workpieces to be cooled on the loading plate are conveyed by pusher rods. The operation of the second cylinder drives the pusher rods to move, realizing the movement of the workpieces on the first and second guide plates. The first cylinder drives the rack and pinion to move, and the gear engagement realizes the rotation of the pusher rods, achieving a horizontal-rotational compound motion of the pusher rods. Automatic reset forms a continuous pushing operation cycle. Multiple pusher rods push the workpieces to be conveyed on the first and second guide plates, enabling continuous cooling of die-cast aluminum alloy shell workpieces, reducing manual intervention, improving production efficiency, and making it better suited for mass industrial production.

[0019] 2. The workpiece is first pushed onto the first guide plate. The water pump distributes cooling water through the main inlet pipe to each branch pipe, where it is atomized by nozzles to form a water mist that covers the workpiece surface for initial cooling. The workpiece is then pushed onto the second guide plate, and both the second guide plate and the workpiece move down into the cooling water for further cooling. The spray pre-cooling stage is used to reduce the initial high temperature, while the immersion cooling stage achieves uniform deep cooling. This gradient cooling method reduces thermal stress concentration caused by direct immersion and rapid cooling, helping to prevent workpiece deformation or cracking. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a rapid cooling device for an aluminum alloy die-cast part provided by this utility model. Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of a rapid cooling device for an aluminum alloy die-cast part provided by this utility model. Figure 2 ;

[0022] Figure 3 A schematic diagram of the control and drive components of a rapid cooling device for an aluminum alloy die-cast part provided by this utility model;

[0023] Figure 4 A schematic diagram of the liquid delivery branch pipe and nozzle structure of a rapid cooling device for die-cast aluminum alloy shells provided by this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Storage tank; 2. Feeding plate; 3. First guide plate; 4. Second guide plate; 5. Push rod; 6. Mounting bracket; 7. Fixing plate; 8. First cylinder; 9. Water pump; 10. Nozzle; 11. Gear; 12. Rack; 13. Second cylinder; 14. Support rod; 15. Guide rail; 16. Slide rail; 17. Through hole; 18. Third cylinder; 19. Connecting bracket; 20. Infusion main pipe; 21. Infusion branch pipe. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0027] like Figures 1 to 4 As shown in the figure, this utility model provides a rapid cooling device for die-cast aluminum alloy shells, including a liquid storage tank 1. A feeding plate 2 is fixedly mounted on one side of the top of the liquid storage tank 1, and a first guide plate 3 is fixedly mounted on one side of the feeding plate 2. A second guide plate 4 is slidably connected to one side of the first guide plate 3. The liquid storage tank 1 is equipped with a lifting assembly for driving the second guide plate 4 to move up and down. A spraying assembly is equipped on the first guide plate 3. Multiple push rods 5 are equidistantly arranged laterally between the spraying assembly and the first guide plate 3. Each push rod 5 has a Z-shaped structure and is used to push the die-cast aluminum alloy shell workpiece to move. The liquid storage tank 1 is equipped with a control assembly and a drive assembly. The control assembly is used to drive the multiple push rods 5 to rotate synchronously, and the drive assembly is used to drive the multiple push rods 5 to move horizontally synchronously.

[0028] The aluminum alloy die-cast workpiece is unloaded from the die-casting machine by a robotic arm onto the loading plate 2 for cooling. A drive assembly moves the pusher rod 5, pushing the workpiece onto the first guide plate 3 for spray pre-cooling. The pusher rod 5 pushes the pre-cooled workpiece from the first guide plate 3 onto the second guide plate 4. A lifting assembly moves the second guide plate 4 and the workpiece down into the cooling water for further cooling. The spray pre-cooling stage reduces the initial high temperature, while the immersion cooling stage achieves uniform deep cooling. This gradient cooling method reduces thermal stress concentration caused by direct immersion and rapid cooling, helping to prevent workpiece deformation or cracking.

[0029] Furthermore, multiple push rods 5 are set up to push the workpiece on the first guide plate 3 and the second guide plate 4 for conveying. In conjunction with the control component, drive component and lifting component, continuous cooling of aluminum alloy shell die-cast workpieces can be realized, reducing manual intervention, improving production efficiency and making it more suitable for mass industrial production.

[0030] At the end of the second guide plate 4, the material can be unloaded by the production line's robotic arm or steel mesh conveyor, which facilitates connection with subsequent processing steps and adapts to the production line layout requirements.

[0031] In some specific implementation plans, such as Figure 1 , Figure 2 and Figure 4 As shown, multiple spraying components are configured. Each spraying component includes a liquid delivery branch pipe 21 and multiple nozzles 10 evenly fixed at the bottom of the liquid delivery branch pipe 21. A water pump 9 is provided on one side of the liquid storage tank 1. A main liquid delivery pipe 20 is fixed to the outlet of the water pump 9, and the inlet of the water pump 9 is connected to the liquid storage tank 1. Each liquid delivery branch pipe 21 is connected to the main liquid delivery pipe 20. The nozzles 10 are atomizing nozzles that form water mist for spraying, reducing the impact of rapid cooling of the workpiece.

[0032] The workpiece on the feeding plate 2 first moves to the first guide plate 3, the water pump 9 starts, and the cooling water is distributed to each branch pipe 21 through the main liquid delivery pipe 20. The water mist is formed by the atomizing nozzle 10 and covers the surface of the workpiece for initial cooling.

[0033] In some specific implementation plans, such as Figure 1 and Figure 3 As shown, the top of the liquid storage tank 1 is provided with a mounting frame 6. The control component includes a rack 12 that slides on the mounting frame 6, a first cylinder 8 fixed on the mounting frame 6, and multiple gears 11. The push rod 5 is rotatably connected to the mounting frame 6. The gears 11 are fixed at the corresponding ends of the push rod 5, and each gear 11 is meshed with the rack 12. The drive component drives the mounting frame 6 to move horizontally.

[0034] The first cylinder 8 pushes the rack 12 to move horizontally, causing all gears 11 to rotate synchronously, which can rotate multiple Z-shaped push rods 5 to a vertical position, making it easier for them to move horizontally and reset to the left side of the workpiece laterally.

[0035] In some specific implementation plans, such as Figure 1 and Figure 3 As shown, the drive assembly includes a fixed plate 7 fixed to one side of the liquid storage tank 1, a second cylinder 13 fixed to the top of the fixed plate 7, a guide rail 15 fixed to the top of the fixed plate 7, a plurality of support rods 14 evenly fixed to the bottom of the mounting frame 6, and a plurality of slide rails 16 sliding on the guide rail 15. The bottom end of the support rod 14 is fixedly connected to the slide rail 16, so that the mounting frame 6 moves smoothly. The drive end of the second cylinder 13 is fixedly connected to one of the support rods 14.

[0036] When it is necessary to transport the workpiece to the next station, the second cylinder 13 operates, driving the mounting frame 6 to move horizontally along the guide rail 15 via the support rod 14 and slide rail 16, which in turn moves the push rod 5 and pushes the workpiece to the next station.

[0037] After the workpiece has moved, the second cylinder 13 operates, causing the mounting frame 6 and its push rod 5 to move to the left, ensuring that the push rod 5 has enough space to rotate. Once the push rod 5 is above the workpiece, the second cylinder 13 continues to drive the mounting frame 6 and its push rod 5 to move to the left. Simultaneously, the push rod 5 rotates, returning to its original position on the left side of the workpiece for subsequent pushing operations.

[0038] In some specific implementation plans, such as Figure 1 and Figure 2 As shown, the lifting assembly includes a third cylinder 18 fixed to one side of the liquid storage tank 1 and a connecting frame 19 fixed to the drive end of the third cylinder 18. The second guide plate 4 is fixed on the connecting frame 19, which has an L-shaped structure.

[0039] The aluminum alloy die-cast part moves to the second guide plate 4, the third cylinder 18 runs, and through the connecting frame 19 drives the second guide plate 4 and the workpiece on it to descend into the cooling water for cooling.

[0040] In some specific implementation plans, such as Figure 1 and Figure 2 As shown, both the first guide plate 3 and the second guide plate 4 have through holes 17 inside. The through holes 17 are located near the edges of the first guide plate 3 and the second guide plate 4 to facilitate the return of cooling water to the storage tank 1. The first guide plate 3, the second guide plate 4, the push rod 5, and the connecting frame 19 are all made of stainless steel. The stainless steel plate has a smooth surface and good corrosion resistance, which helps to ensure the movement of the workpiece on the loading plate 2, the first guide plate 3, and the second guide plate 4.

[0041] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0042] The aluminum alloy die-cast workpiece is unloaded from inside the die-casting machine onto the loading plate 2 via a robotic arm for cooling. The second cylinder 13 operates, driving the mounting frame 6 horizontally along the guide rail 15 via the support rod 14 and slide rail 16. This moves the pusher rod 5 and pushes the workpiece onto the first guide plate 3. The water pump 9 starts, and cooling water is distributed from the main inlet pipe 20 to the branch pipes 21, forming a water mist through the atomizing nozzles 10, which covers the workpiece surface for initial cooling.

[0043] After the workpiece has moved, the second cylinder 13 operates, causing the mounting frame 6 and its push rod 5 to move to the left, ensuring that the push rod 5 has sufficient space to rotate. The first cylinder 8 pushes the rack 12 to move horizontally, causing all gears 11 to rotate synchronously, which allows multiple Z-shaped push rods 5 to rotate to a vertical position. When the push rod 5 rotates above the workpiece, the second cylinder 13 continues to drive the mounting frame 6 and its push rod 5 to move to the left. Simultaneously, the push rod 5 rotates through the operation of the first cylinder 8 and the cooperation of the gears 11 and rack 12, causing the push rod 5 to return to the left side of the workpiece, facilitating subsequent pushing operations.

[0044] The pusher rod 5 pushes the pre-cooled workpiece on the first guide plate 3 to the second guide plate 4. The third cylinder 18 operates, driving the second guide plate 4 and the workpiece on it down into the cooling water body for cooling through the connecting frame 19. The spray pre-cooling stage is used to reduce the initial high temperature, and the immersion cooling stage achieves uniform deep cooling. The gradient cooling method can reduce the thermal stress concentration caused by direct immersion rapid cooling, which helps to avoid workpiece deformation or cracking.

[0045] Multiple push rods 5 are set up to push the workpiece on the first guide plate 3 and the second guide plate 4 for conveying. In conjunction with the control component, drive component and lifting component, the continuous cooling of the die-cast workpiece with aluminum alloy shell can be realized, reducing manual intervention, improving production efficiency and making it more suitable for mass industrial production.

[0046] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A rapid cooling device for an aluminum alloy housing die casting, comprising a liquid storage tank (1), characterized in that, A feeding plate (2) is fixedly provided on one side of the top of the liquid storage tank (1), a first guide plate (3) is fixedly provided on one side of the feeding plate (2), a second guide plate (4) is slidably connected on one side of the first guide plate (3), and a lifting assembly is provided on the liquid storage tank (1) for driving the second guide plate (4) to move up and down. The first guide plate (3) is provided with a spray assembly. Multiple push rods (5) are distributed horizontally at equal intervals between the spray assembly and the first guide plate (3). Each push rod (5) is a Z-shaped structure. The liquid storage tank (1) is provided with a control assembly and a drive assembly. The control assembly is used to drive the multiple push rods (5) to rotate synchronously, and the drive assembly is used to drive the multiple push rods (5) to move horizontally synchronously.

2. The rapid cooling device for die-cast aluminum alloy housings as described in claim 1, characterized in that, The spray assembly is provided in multiple ways, and each spray assembly includes an infusion branch pipe (21) and multiple nozzles (10) uniformly fixed at the bottom of the infusion branch pipe (21).

3. The rapid cooling device for die-cast aluminum alloy housings as described in claim 2, characterized in that, The liquid storage tank (1) is provided with a mounting frame (6) on top. The control component includes a rack (12) sliding on the mounting frame (6), a first cylinder (8) fixed on the mounting frame (6), and a plurality of gears (11). The push rod (5) is rotatably connected to the mounting frame (6). The gears (11) are fixed at the ends of the corresponding push rods (5), and each gear (11) is meshed with the rack (12). The drive component drives the mounting frame (6) to move horizontally.

4. The rapid cooling device for die-cast aluminum alloy housings as described in claim 1, characterized in that, The drive assembly includes a fixed plate (7) fixed to one side of the liquid storage tank (1) and a second cylinder (13) fixed to the top of the fixed plate (7).

5. The rapid cooling device for die-cast aluminum alloy housings as described in claim 4, characterized in that, The lifting assembly includes a third cylinder (18) fixed on one side of the liquid storage tank (1) and a connecting frame (19) fixed on the top of the drive end of the third cylinder (18), and the second guide plate (4) is fixed on the connecting frame (19).

6. The rapid cooling device for die-cast aluminum alloy housings as described in claim 5, characterized in that, Both the first guide plate (3) and the second guide plate (4) have through holes (17) near their edges.

7. The rapid cooling device for die-cast aluminum alloy housings as described in claim 2, characterized in that, A water pump (9) is provided on one side of the liquid storage tank (1), and a main infusion pipe (20) is fixed at the outlet of the water pump (9). Each branch pipe (21) is connected to the main infusion pipe (20).

8. The rapid cooling device for die-cast aluminum alloy housings as described in claim 7, characterized in that, The nozzle (10) is an atomizing nozzle.

9. The rapid cooling device for die-cast aluminum alloy housings as described in claim 4, characterized in that, The drive assembly also includes a guide rail (15) fixed to the top of the fixed plate (7), a plurality of support rods (14) evenly fixed to the bottom of the mounting frame (6), and a plurality of slide rails (16) sliding on the guide rail (15). The bottom end of the support rod (14) is fixedly connected to the slide rail (16), and the drive end of the second cylinder (13) is fixedly connected to one of the support rods (14).

10. The rapid cooling device for die-cast aluminum alloy housings as described in claim 9, characterized in that, The first guide plate (3), the second guide plate (4), the push rod (5) and the connecting frame (19) are all made of stainless steel.

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