A cooling and conveying device for die-cast metal automotive parts

Abstract

This invention discloses a cooling and conveying device for die-cast metal automotive parts, relating to the field of automotive part die-casting cooling technology. It includes a fixed frame, a collection box located at the bottom of the fixed frame, and a protective cover located at the top of the fixed frame. A water purification device is installed on one side of the top of the protective cover, an absorber is installed in the middle, and an air cooler is located on the other side of the top. A chain conveyor is installed inside the fixed frame, and pallets are equidistantly installed on the conveying surface of the chain conveyor. A connecting mechanism is provided below the pallets. A mist cooling mechanism is located below the water purification device. This invention improves the continuity of cooling during the conveying of automotive part die-castings through the cooperation of the pallets, the connecting mechanism, and the mist cooling mechanism. By coordinating the staggered arrangement of spray pipes, the coolant forms a flat, arc-shaped mist field covering the entire pallet. Directional airflow sweeps away the pore structure of the casting, solving the problem of internal liquid accumulation that is difficult to remove during traditional static cooling. This improves the cooling effect and rate during the conveying process of automotive part die-castings.

Description

Technical Field

[0001] This invention relates to the field of automotive die-casting cooling technology, and more particularly to a cooling and conveying device for metal automotive die-castings. Background Technology

[0002] In the production of automotive die castings, the cooling process directly affects product quality and production efficiency. Traditional conveying cooling equipment has the following technical bottlenecks: (1) Traditional spraying devices use fixed nozzles, and the coolant only covers a local area of ​​the casting, resulting in a large surface temperature gradient and easy thermal stress deformation. Static cooling relies on natural convection, with a low heat dissipation rate, which cannot meet the cycle requirements of high-speed production lines. (2) Coolant is easily retained in the pores or blind holes of complex die castings (such as engine cylinder blocks). Traditional static cooling cannot completely drain the coolant by gravity, affecting subsequent heat treatment or surface treatment processes. (3) Traditional gear and rack transmission is prone to disengagement due to vibration or wear, affecting the stability of the pallet rotation. Moreover, intermittent operation is difficult to accurately match the rhythm of the production line, resulting in interruption of the cooling process. Therefore, the above problems need to be improved. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cooling and conveying device for die-cast metal automotive parts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a cooling and conveying device for metal automotive die-cast parts, comprising a fixed frame, a collection box located at the lower part of the fixed frame, and a protective cover located at the top of the fixed frame. A water purification device is installed on one side of the top of the protective cover, a steam absorber is installed in the middle, and an air cooler is located on the other side of the top. A liquid extraction pipe is installed on the water purification device, and the bottom end of the liquid extraction pipe communicates with the interior of the collection box. A chain conveyor is installed inside the fixed frame, and a drive motor for rotating the chain conveyor is installed on the front end face of the fixed frame. Multiple pallets for supporting automotive die-cast parts are equidistantly installed on the conveying surface of the chain conveyor, and a connecting mechanism cooperating with the chain conveyor is provided at the lower part of each pallet. A mist cooling mechanism is provided below the water purification device.

[0005] Preferably, the chain plate of the chain conveyor has multiple mounting holes, in which a rotating tube is rotatably installed. The upper inner side of the collection box has multiple double-folded plates, and the lower inner side of the collection box has multiple single-folded plates. A stratigraphic layer is spaced between the double-folded plates and the single-folded plates. The bottom end of the liquid extraction pipe is located between the stratigraphic layers.

[0006] Preferably, the mist cooling mechanism includes a water outlet pipe installed at the bottom of the water purification equipment, a telescopic pipe installed at the bottom end of the water outlet pipe, a diversion flat pipe installed at the bottom end of the telescopic pipe, and multiple electric actuators installed around the bottom of the water outlet pipe. The bottom of the telescopic end of the electric actuator is connected to the diversion flat pipe. Multiple spray pipes are installed at equal intervals at the bottom of the diversion flat pipe. A swirl spray assembly is installed at the lower part of the spray pipe.

[0007] Preferably, the rotary spray assembly includes an inner tube rotatably mounted on the inner side of the lower part of the spray pipe, a rotating nozzle fixed to the bottom end of the inner tube, a drive ring plate sleeved on the bottom end of the spray pipe, and an annular groove formed on the top of the drive ring plate. An external toothed ring is sleeved on the outer wall of the inner tube located in the inner ring of the drive ring plate. A transmission port is formed on one inner wall of the annular groove, and a transmission gear that meshes with the external toothed ring is rotatably arranged in the transmission port. A drive gear that meshes with the transmission gear is rotatably arranged inside the annular groove. An annular plate is provided at the top of the annular groove, and a micro motor for driving the drive gear is provided at the top of the annular plate.

[0008] Preferably, the connecting mechanism includes a support tube vertically disposed inside the rotating tube, anti-rotation strips fixed to both sides of the support tube, and a buffer cavity opened on the upper inner side of the support tube. An electric push cylinder is installed inside the rotating tube, and a buffer assembly is provided inside the buffer cavity. The support tube extends movably through the top of the rotating tube and is fixed to the bottom surface of the support plate. Anti-rotation slots are opened on the inner walls on both sides of the through-hole between the rotating tube and the support tube to cooperate with the anti-rotation strips.

[0009] Preferably, the buffer assembly includes a buffer block movably disposed inside the buffer cavity and multiple buffer springs disposed on top of the buffer block, the telescopic end of the electric push cylinder is fixedly connected to the protruding end of the buffer block, and a driven gear is fixedly connected to the bottom end of the rotating tube.

[0010] Preferably, a fixed frame is horizontally installed in the inner ring of the chain conveyor of the fixed frame, and multiple mounting plates are fixedly connected to the front end of the fixed frame. Multiple rack plates for driven by the driven gear are horizontally provided on the top of the fixed frame, and a transmission component for driven by the driven gear is installed on the mounting plate.

[0011] Preferably, the transmission assembly includes a longitudinally extending groove on the mounting plate, a lead screw rotatably disposed inside the longitudinally extending groove, and a movable seat sleeved on the lead screw. An inverted L-shaped connecting block is installed on the top of the movable seat, and the connecting block is fixedly connected to the rack plate. A servo motor for driving the lead screw is provided inside the front end of the mounting plate.

[0012] Preferably, the top surface of the tray is provided with a storage groove, and the bottom of the storage groove is provided with multiple drain outlets, and a water-passing tray layer is fixedly installed inside the drain outlets.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention improves the continuity of cooling during the conveying of automotive die-cast parts by cooperating with the pallet, connecting mechanism, and mist cooling mechanism. The mist cooling mechanism adopts a structural design combining rotating nozzles and diverting flat pipes, using a micro-motor to drive the rotating nozzles to achieve 360-degree rotating spray. Combined with the staggered arrangement of spray pipes, the coolant forms a flat arc-shaped mist field covering the entire pallet. This significantly improves heat exchange efficiency compared to traditional spraying methods, effectively eliminating localized temperature differences on the casting surface and avoiding deformation defects caused by uneven cooling. Directional airflow sweeps through the casting's pore structure, solving the problem of internal liquid accumulation that is difficult to remove with traditional static cooling. The use of a servo motor and lead screw transmission ensures reliable meshing between the driven gear and the rack plate. Furthermore, by optimizing the rack plate layout, intermittent horizontal rotation of the pallet is achieved, facilitating the continuity of production cycles and improving the cooling effect and rate during the conveying of automotive die-cast parts. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a first-view schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a second-view schematic diagram of the overall structure of the present invention;

[0017] Figure 3 This is a first-view schematic diagram of a partial structure of the present invention;

[0018] Figure 4 This is a second-view schematic diagram of a partial structure of the present invention;

[0019] Figure 5 This is a schematic diagram of the fixing frame and water purification equipment structure of the present invention;

[0020] Figure 6 This is a cross-sectional view of the fixed frame and collection box structure of the present invention;

[0021] Figure 7 This is a schematic diagram showing the positional relationship between the fixed frame and the double-folded plate and the single-folded plate of the present invention;

[0022] Figure 8 This is a schematic diagram showing the positional relationship between the double-folded plate and the single-folded plate structure of the present invention;

[0023] Figure 9 This is a schematic diagram of the chain conveyor and pallet structure of the present invention;

[0024] Figure 10This is a schematic diagram of the tray and connection structure of the present invention;

[0025] Figure 11 This is a schematic diagram of one side of the mist cooling mechanism of the present invention;

[0026] Figure 12 This is a three-dimensional structural diagram of the mist cooling mechanism of the present invention;

[0027] Figure 13 This is a three-dimensional structural diagram of the rotary jet assembly of the present invention;

[0028] Figure 14 This is a partial structural diagram of the rotary jet assembly of the present invention;

[0029] Figure 15 This is a cross-sectional view of the connection mechanism and buffer assembly structure of the present invention;

[0030] Figure 16 This is a schematic diagram showing the positions of the central mounting plate, the fixing frame, and the rack plate of the present invention;

[0031] Figure 17 This is a schematic diagram of the fixing frame and rack plate structure of the present invention;

[0032] Figure 18 This is a cross-sectional view of one side of the mounting plate of the present invention.

[0033] The components in the diagram are numbered as follows: 1. Fixed frame; 2. Collection box; 3. Protective cover; 4. Water purification equipment; 5. Steam absorber; 6. Air cooler; 7. Liquid extraction pipe; 8. Chain conveyor; 9. Drive motor; 10. Pallet; 11. Double fold plate; 12. Single fold plate; 13. Water outlet pipe; 14. Diverting flat pipe; 15. Telescopic pipe; 16. Electric actuator; 17. Spray pipe; 18. Rotary nozzle; 19. Drive ring plate; 20. Inner tube; 21. External gear ring; 22. Transmission gear; 23. Drive gear; 24. Micro motor; 25. Rotating tube; 26. Support tube; 27. Electric actuator cylinder; 28. Buffer block; 29. ​​Buffer spring; 30. Driven gear; 31. Mounting plate; 32. Fixed frame; 33. Servo motor; 34. Lead screw; 35. Rack plate; 36. Connecting block. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Example 1: See Figures 1 to 18A cooling and conveying device for die-cast metal automotive parts includes a fixed frame 1, a collection box 2 located at the bottom of the fixed frame 1, and a protective cover 3 located at the top of the fixed frame 1. A water purification device 4 is installed on one side of the top of the protective cover 3, a steam absorber 5 is installed in the middle, and an air cooler 6 is located on the other side of the top. The synchronous operation of the steam absorber 5 helps maintain the working environment humidity at ≤60%, preventing condensation from affecting equipment operation. The air cooler 6 uses high-speed airflow (wind speed up to 20m / s) to create a gradient cooling effect with atomized cooling. The system improves efficiency through the following mechanisms: surface water droplets evaporate rapidly, carrying away latent heat and reducing the casting temperature from 300°C to below 50°C within 30 seconds; directional airflow sweeps through the casting's pore structure, solving the problem of internal liquid accumulation that is difficult to remove with traditional static cooling; a liquid extraction pipe 7 is installed on the water purification device 4, and the bottom end of the liquid extraction pipe 7 is connected to the inside of the collection box 2, with a filter cover installed at the bottom end of the liquid extraction pipe 7 inside the collection box 2; a chain conveyor 8 is installed inside the fixed frame 1, and a filter for the chain conveyor 8 is installed on the front end face of the fixed frame 1. The rotating drive motor 9 and the chain conveyor 8 have multiple pallets 10 evenly installed on their conveying surfaces for supporting auto parts die castings. Each pallet 10 has a storage trough on its top surface and multiple drainage outlets at its bottom. A water-passing support layer is fixedly installed inside each drainage outlet. A connecting mechanism that cooperates with the chain conveyor 8 is provided at the bottom of the pallet 10. A mist-cooling mechanism is provided below the water purification equipment 4. Multiple mounting holes are provided in the chain plates of the chain conveyor 8, and rotating pipes 25 are rotatably installed within these holes. The upper inner side of the collection box 2 is equipped with… There are multiple double-folded plates 11, and multiple single-folded plates 12 are provided on the lower inner side of the collection box 2. There is a flow layer between the double-folded plates 11 and the single-folded plates 12. The bottom end of the liquid extraction pipe 7 is located between the flow layers. The inside of the collection box 2 uses double-folded plates 11 (tilt angle 60°) and single-folded plates 12 (tilt angle 45°) to be arranged alternately, forming a total of five layers of flow sedimentation zones. This structure can improve the sedimentation efficiency of impurities with a diameter ≥50μm to 92%, which is more than three times longer than the replacement cycle of the filter plate inside the traditional straight cylindrical collection box 2.

[0036] In this invention, the mist cooling mechanism includes a water outlet pipe 13 installed at the bottom of the water purification device 4, a telescopic pipe 15 installed at the bottom end of the water outlet pipe 13, a diversion flat pipe 14 installed at the bottom end of the telescopic pipe 15, and multiple electric actuators 16 installed around the bottom of the water outlet pipe 13. The bottom of the telescopic end of the electric actuator 16 is aligned with the bottom of the diversion flat pipe 14. Multiple spray pipes 17 are equidistantly installed at the bottom of the diversion flat pipe 14. A swirl spray assembly is installed at the lower part of the spray pipe 17. The swirl spray assembly includes an inner insertion pipe 20 rotatably installed on the inner side of the lower part of the spray pipe 17 and fixed to the bottom of the inner insertion pipe 20. The device includes a rotating nozzle 18 at one end, a drive ring plate 19 fitted onto the bottom end of the spray pipe 17, and an annular groove on the top of the drive ring plate 19. An inner tube 20 is fitted onto the outer wall of the inner ring of the drive ring plate 19 with an external toothed ring 21. A transmission port is provided on one inner wall of the annular groove. A transmission gear 22 that meshes with the external toothed ring 21 is rotatably provided in the transmission port. A drive gear 23 that meshes with the transmission gear 22 is rotatably provided inside the annular groove. An annular plate is provided at the top of the annular groove, and a micro motor 24 for driving the drive gear 23 is provided at the top of the annular plate.

[0037] Example 2: The technical solution is basically the same as that of Example 1, except that, as Figures 15 to 18 As shown, the connecting mechanism includes a support tube 26 vertically disposed inside the rotating tube 25, anti-rotation strips fixed to both sides of the support tube 26, and a buffer cavity opened on the upper inner side of the support tube 26. An electric push cylinder 27 is installed inside the rotating tube 25, and a buffer assembly is provided inside the buffer cavity. The support tube 26 extends movably through the top of the rotating tube 25 and is fixed to the bottom surface of the support plate 10. Anti-rotation grooves are opened on the inner walls on both sides of the through-hole between the rotating tube 25 and the support tube 26 in conjunction with the anti-rotation strips. The support plate 10 can be automatically immersed in the coolant during the return stroke. The electric push cylinder 27 drives the support plate 10 to perform reciprocating lifting and lowering motion, which facilitates mechanical stirring and can flush away residual impurities in the support plate storage slot when in contact with the coolant. It also prevents disturbance of the bottom sediment and prevents caking, effectively maintaining the cleanliness of the coolant.

[0038] In this invention, the buffer assembly includes a buffer block 28 movably disposed inside the buffer cavity and multiple buffer springs 29 disposed on the top of the buffer block 28. The telescopic end of the electric push cylinder 27 is fixedly connected to the extended end of the buffer block 28, and the bottom end of the rotating tube 25 is fixedly connected to a driven gear 30. The buffer assembly helps to avoid rigid impact between the die-cast parts and the pallet 10 during the process. Since the pallet 10 is driven by the electric push cylinder 27 to achieve intermittent lifting and lowering, and in conjunction with the uniform rotation of the chain conveyor 8, it automatically completes three 180° horizontal rotations during the conveying process. This design increases the contact area between the die-cast parts and the coolant by two to three times, and the coverage rate of the key heat dissipation surface reaches more than 98%.

[0039] In this invention, a fixed frame 32 is horizontally installed in the inner ring of the chain conveyor 8 of the fixed frame 1, and multiple mounting plates 31 are fixedly connected to the front end of the fixed frame 32. Multiple rack plates 35 for driving the driven gear 30 are horizontally provided on the top of the fixed frame 32. A transmission assembly for pushing the driven gear 30 is installed on the mounting plate 31. The transmission assembly includes a longitudinally extending groove on the mounting plate 31, a lead screw 34 rotatably disposed inside the longitudinally extending groove, and a movable seat sleeved on the lead screw 34. An inverted L-shaped connecting block 36 is installed on the top of the movable seat. The 36 connecting block is fixedly connected to the rack plate 35. The front end of the mounting plate 31 is equipped with a servo motor 33 for driving the lead screw 34. By using the transmission of the servo motor 33 and the lead screw 34, the driven gear 30 and the rack plate 35 are reliably meshed. By optimizing the layout of the rack plate 35, the pallet 10 can be rotated horizontally once intermittently, which helps to ensure the continuity of the production cycle. It can also eliminate the meshing between the rack plate 35 and the driven gear 30, realizing a non-rotating conveying operation and realizing both rotating and non-rotating conveying modes.

[0040] Working principle: In this embodiment, the present invention also proposes a method for using a cooling and conveying device for die-cast metal automotive parts, including the following steps:

[0041] Step 1: First, connect all electrical devices in this device to the external control device. Then, fill the collection box 2 with coolant. Next, place the auto parts die-casting to be cooled on top of the pallet 10 and intermittently extend the electric push cylinder 27. The intermittently raised electric push cylinder 27 can drive the pallet 10 to be lifted. The pallet 10 is raised intermittently, which can avoid collision when the pallet 10 rotates.

[0042] Step two, then start the drive motor 9 to drive the chain conveyor 8 to rotate. The rotating chain conveyor 8 drives the pallet 10 to move towards the inside of the protective cover 3. When the auto parts die casting to be cooled moves to the bottom of the water purification equipment 4, the coolant is extracted from the collection box 2 by starting the water purification equipment 4 and the liquid extraction pipe 7. Then the coolant enters the water outlet pipe 13. By starting the electric push rod 16 and cooperating with the telescopic pipe 15, the height of the diversion flat pipe 14 can be adjusted to make it easier to adjust the height according to the different heights of the auto parts die casting. By adjusting the height of the diversion flat pipe 14, it is easier to avoid the large amount of cooling water mist sprayed out and the waste.

[0043] Step 3: When the coolant enters the distribution flat pipe 14 through the outlet pipe 13 and the telescopic pipe 15, the coolant inside the distribution flat pipe 14 is sprayed out in a mist state from the rotary nozzle 18 through the spray pipe 17. The sprayed area is a flat arc surface, and the lower part of the mist sprayed by multiple rotary nozzles 18 is staggered to avoid local leakage of coolant onto the auto parts die-casting. Then, the micro motor 24 is started to drive the drive gear 23 to rotate. The rotating drive gear 23 drives the outer gear ring 21, which meshes with the transmission gear 22, to rotate. The rotating outer gear ring 21 drives the inner insertion tube 20 to rotate. The rotating inner insertion tube 20 drives the rotary nozzle 18 to perform a rotating spraying operation, improving the uniformity of spraying on the surface of the auto parts die-casting. Meanwhile, the chain conveyor 8 drives the pallet 10 and the connecting mechanism to... During the conveying process, the servo motor 33 drives the lead screw 34 to rotate. The rotating lead screw 34 can drive the rack plate 35 connected to the moving seat to move towards the fixed frame 32, so that the rack plate 35 can be placed on the fixed frame 32. Then, when the chain conveyor 8 drives the rotating tube 25 to move, when the moving rotating tube 25 and the driven gear 30 pass by the rack plate 35, the driven gear 30 can roll half a turn under the action of the rack plate 35. The driven gear 30, which rotates half a turn, can drive the rotating tube 25 to rotate half a turn. The rotating tube 25, which rotates half a turn, can drive the pallet 10 connected to the buffer assembly to rotate horizontally by 180 degrees, so that the automotive die-casting parts on the pallet 10 can be horizontally rotated. The horizontal rotation of the automotive die-casting parts can improve the contact effect with the atomizing liquid.

[0044] Step four: As the chain conveyor 8 transports the atomized and cooled auto parts die-castings to the air cooler 6, the air cooler 6 automatically starts to rapidly cool the atomized auto parts die-castings after sensing the data information of the auto parts die-castings through its built-in object sensor. The strong wind speed blows away the water droplets on the surface of the auto parts die-castings. The air cooling and water droplet blowing operations effectively improve the rapid cooling of the auto parts die-castings. At the same time, the water droplets can carry away the heat from the surface of the auto parts die-castings while blowing on the surface, and can also dry the water in the cavities on the surface of the auto parts die-castings. In the process of water evaporation, the cooling effect of the auto parts die-castings is improved.

[0045] Step 5: When the air cooler 6 is started to perform mist cooling on the auto parts die casting, the steam absorber 5 in the middle of the protective cover 3 is started simultaneously. The steam absorber 5 can draw in the steam generated when passing through the mist-cooled auto parts die casting. In the process of drawing in the steam, it will not affect the suction of the high-pressure sprayed atomized liquid. Finally, the auto parts die casting after mist cooling and air cooling will be transported to the next process equipment through the pallet 10.

[0046] Step six: After the pallet 10 completes the conveying of the automotive die-cast parts, it will rotate downwards via the chain conveyor 8, and then the electric actuator 16 will extend. The extended electric actuator 16 can drive the pallet 10 to sink into the coolant in the collection box 2. By reciprocating the operation of the electric actuator 16, the pallet 10 can push the coolant inside the collection box 2. The agitated coolant can impact and sink the casting slag that has settled on the double-fold plate 11 and single-fold plate 12 to the bottom of the collection box 2. When the pallet 10 is repeatedly impacted and cooled in the coolant, the impurities attached to the groove of the pallet 10 can also be knocked off, improving the cleanliness of the pallet 10 in subsequent use. Since the collection box 2 is designed with a double-layer double-fold plate 11 and single-fold plate 12 and a stratosphere, it can effectively prevent the impurities settled inside the collection box 2 from rising, improve the sedimentation effect of the impurities inside the collection box 2, and thus prevent a large amount of impurities from being adsorbed on the filter cover at the bottom of the liquid extraction pipe 7.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cooling and conveying device for die-cast metal automotive parts, comprising a fixed frame (1), a collection box (2) disposed at the lower part of the fixed frame (1), and a protective cover (3) disposed at the top of the fixed frame (1), characterized in that: A water purification device (4) is installed on one side of the top of the protective cover (3), a steam absorber (5) is installed in the middle, and an air cooler (6) is located on the other side of the top. A liquid extraction pipe (7) is installed on the water purification equipment (4), and the bottom end of the liquid extraction pipe (7) is connected to the inside of the collection box (2); a chain plate conveyor (8) is installed in the fixed frame (1), and a drive motor (9) for rotating the chain plate conveyor (8) is installed on the front end face of the fixed frame (1). Multiple pallets (10) for supporting auto parts die castings are installed at equal intervals on the conveying surface of the chain plate conveyor (8). A connecting mechanism that cooperates with the chain plate conveyor (8) is provided at the bottom of the pallet (10); a mist cooling mechanism is provided below the water purification equipment (4); The connecting mechanism includes a support tube (26) vertically disposed inside the rotating tube (25), anti-rotation strips fixed to both sides of the support tube (26), and a buffer cavity opened on the upper inner side of the support tube (26). An electric push cylinder (27) is installed inside the rotating tube (25), and a buffer assembly is provided inside the buffer cavity. The support tube (26) extends movably through the top of the rotating tube (25) and is fixed to the bottom surface of the support plate (10). Anti-rotation slots are opened on the inner walls on both sides of the through-hole between the rotating tube (25) and the support tube (26) in conjunction with the anti-rotation strips. The buffer assembly consists of a buffer block (28) inside the buffer cavity and multiple buffer springs (29) on the top of the buffer block (28). The telescopic end of the electric push cylinder (27) is fixedly connected to the extended end of the buffer block (28), and the bottom end of the rotating tube (25) is fixedly connected to a driven gear (30). A fixed frame (32) is horizontally installed in the inner ring of the chain conveyor (8) of the fixed frame (1), and multiple mounting plates (31) are fixedly connected to the front end of the fixed frame (32). Multiple rack plates (35) for driving the driven gear (30) are horizontally provided on the top of the fixed frame (32), and a transmission component for driving the driven gear (30) is installed on the mounting plate (31). The chain conveyor (8) has multiple mounting holes in its chain plates, and a rotating tube (25) is rotatably installed in each mounting hole. The upper inner side of the collection box (2) is provided with multiple double-folded plates (11), and the lower inner side of the collection box (2) is provided with multiple single-folded plates (12). A stratigraphic layer is spaced between the double-folded plates (11) and the single-folded plates (12). The bottom end of the liquid extraction pipe (7) is located between the stratigraphic layers. The mist cooling mechanism includes an outlet pipe (13) installed at the bottom of the water purification equipment (4), a telescopic pipe (15) installed at the bottom end of the outlet pipe (13), a diversion flat pipe (14) installed at the bottom end of the telescopic pipe (15), and multiple electric push rods (16) installed on the periphery of the bottom of the outlet pipe (13). The bottom of the telescopic end of the electric push rod (16) is connected to the diversion flat pipe (14). Multiple spray pipes (17) are installed at equal intervals at the bottom of the diversion flat pipe (14). A swirl spray assembly is installed at the lower part of the spray pipe (17). The transmission assembly includes a longitudinally extending groove on the mounting plate (31), a lead screw (34) rotatably disposed inside the longitudinally extending groove, and a movable seat sleeved on the lead screw (34). An inverted L-shaped connecting block (36) is installed on the top of the movable seat. The connecting block (36) is fixedly connected to the rack plate (35). A servo motor (33) for driving the lead screw (34) is provided inside the front end of the mounting plate (31).

2. The cooling and conveying device for die-cast metal automotive parts according to claim 1, characterized in that: The rotary spray assembly includes an inner tube (20) rotatably mounted on the inner side of the lower part of the spray pipe (17), a rotary nozzle (18) fixed to the bottom end of the inner tube (20), a drive ring plate (19) sleeved on the bottom end of the spray pipe (17), and an annular groove opened on the top of the drive ring plate (19). An outer toothed ring (21) is sleeved on the outer wall of the inner ring of the inner tube (20) within the drive ring plate (19). A transmission port is opened on one side of the inner wall of the annular groove. A transmission gear (22) that meshes with the outer toothed ring (21) is rotatably provided in the transmission port. A drive gear (23) that meshes with the transmission gear (22) is rotatably provided inside the annular groove. An annular plate is provided at the top of the annular groove, and a micro motor (24) for driving the drive gear (23) is provided at the top of the annular plate.

3. The cooling and conveying device for die-cast metal automotive parts according to claim 2, characterized in that: The top surface of the tray (10) is provided with a storage groove, and the bottom of the storage groove is provided with multiple drainage outlets. A water-passing tray layer is fixedly installed inside the drainage outlet.

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