Cooling device for automobile die casting production

Abstract

The invention discloses a cooling device for automobile die casting production, and relates to the technical field of automobile die casting production cooling, the cooling device comprises a rectangular liquid storage tank, a workbench mounted at a top opening of the liquid storage tank and a first linear motor mounted at the rear end of the top of the workbench, and a lower swing mechanism is mounted on the front end face of a rotating frame; a gear motor used for driving one conveying roller is arranged at the rear end of the workbench, and a mesh belt type conveying belt is connected between the conveying rollers and the horizontal rotating shaft in a sleeved mode. A pushing mechanism is mounted in the lower part of the liquid storage tank; the V-like structure of the mesh belt type conveying belt is matched with the hook-shaped design of the stirring blades, so that forced oil flow circulation is formed; a water passing strip opening in the surface of the blade is stirred to generate turbulent flow, low-temperature oil at the bottom directionally impacts a casting, the swing type anti-interference plate is combined with an arc face bending structure of the swing type anti-interference plate, oil flow smoothness is maintained while casting slag is prevented from floating upwards, and it is guaranteed that the oil in a high-temperature area is rapidly replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling in the production of automotive die-castings, and particularly to a cooling device for the production of automotive die-castings. Background Art

[0002] In the production of automotive die-castings (such as engine blocks, transmission housings, etc.), the workpieces after high-temperature die-casting need to be rapidly cooled to stabilize the metallographic structure and improve the mechanical properties; at present, oil cooling is a common cooling method, but the traditional oil cooling device has the following technical defects: since the traditional oil tank mainly relies on natural convection or simple mechanical stirring, the cooling oil flows slowly, resulting in a large difference in the cooling rate of different parts of the casting, and it is easy to generate thermal stress deformation (the deformation rate is as high as 15%); At the same time, since it is difficult to rapidly update the oil after local overheating, the cooling capacity in the high-temperature area decreases, affecting the dimensional accuracy of the casting (the tolerance fluctuation is more than ±0.3 mm); the casting slag (such as scale, sand grains) falling off from the cooling oil is easily deposited on the surface of the casting or stuck in the pores, and subsequent cleaning requires manual intervention, increasing the production cost (each piece takes an additional 5-8 minutes); at the same time, the existing oil stirring mechanism (such as a fixed blade) cannot adjust the disturbance intensity according to the shape of the casting, and thin-walled parts are easily deformed due to excessive impact; and after the casting slag precipitates and mixes with the oil, the traditional filtration system needs to be frequently shut down for cleaning (2-3 times per shift), affecting continuous production; although some solutions attempt to optimize the cooling effect by increasing the stirring motor or improving the conveyor belt structure, there are still the following limitations: the oil stirring and the casting conveying mechanism are separated, with high energy consumption and poor coordination; the fixed filter is easily blocked and cannot cope with the high-flow oil circulation; only unilateral blowing is used, and the residual oil film thickness > 0.1 mm; therefore, it is necessary to solve and optimize the above problems to solve the pain points of the above industry. Summary of the Invention

[0003] The purpose of the present invention is to solve the disadvantages existing in the prior art and to propose a cooling device for the production of automotive die-castings.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a cooling device for automobile die casting production, comprising a rectangular liquid storage tank, a workbench installed at the top opening of the liquid storage tank and a first linear motor installed at the top rear end of the workbench, the liquid storage tank is filled with cooling oil, a driving box is installed on the moving seat of the first linear motor, a rotating frame is rotatably installed on the front end surface of the driving box, and the front end surfaces of the six ends of the rotating frame are all installed with a swing mechanism for stirring the oil body in the liquid storage tank and for moving the casting; the workbench is a rectangular frame structure, and both sides of the lower part of the liquid storage tank are longitudinally rotated with horizontal flow shafts, a pair of conveying rollers are rotated at intervals in the frame openings on both sides of the workbench, a reduction motor for driving one of the conveying rollers is provided at the rear end of the workbench, and a mesh belt conveyor belt is sleeved between the conveying rollers at both ends of the workbench and the two horizontal flow shafts at the bottom of the liquid storage tank; a pushing mechanism for the oil body to impact the workpiece is installed on the inner side of the lower part of the liquid storage tank.

[0005] Preferably, the opening lengths at both ends of the workbench exceed the opening length of the liquid storage tank, and reflux boxes connected to the interior of the liquid storage tank are installed on both sides of the bottom of the workbench, and multiple air dryers are installed at equal distances on the outer sides of the reflux boxes; second linear motors are embedded in the front and rear end surfaces of the workbench, and a protective cover is installed between the moving seats of the two second linear motors.

[0006] Preferably, a folded plate-shaped wind guide plate is obliquely installed on one side of the reflux box close to the liquid storage tank, a reversely inclined reflective plate is installed inside the reflux box outside the wind guide plate, and an exhaust space is provided between the lower end of the reflective plate and the wind receiving surface of the wind guide plate; and a reflux outlet is provided between the bottom of the wind guide plate and the inclined inner bottom surface of the reflux box.

[0007] Preferably, the pushing mechanism includes a driven shaft rotatably arranged on both sides of the liquid storage tank, a fixed tube installed on the driven shaft, three moving blades equidistantly arranged on the circumference of the fixed tube and a cleaning assembly arranged at the front end of the driven shaft, the moving blade is a hook-shaped plate, and a plurality of water-passing openings are equidistantly opened on the surface of the moving blade, and the bending directions of the plurality of moving blades are all in the same direction.

[0008] Preferably, the cleaning component includes an anti-skid transmission belt sleeved on the front and rear ends of the horizontal flow shaft, and a plurality of groups of cleaning rubber strips for cleaning the inner walls of the front and rear ends of the liquid storage tank are equidistantly arranged on the outer ring wall of the anti-skid transmission belt, and belt pressing rollers for tightening the mesh belt conveyor belt are rotatably arranged on the inner walls of the front and rear ends of the liquid storage tank above the horizontal flow shaft, and support rollers for supporting the lower belt body of the mesh belt conveyor belt are rotatably arranged on the front and rear ends on both sides of the top of the liquid storage tank.

[0009] Preferably, a plurality of blocking ridges are equidistantly arranged on the outer peripheral wall of the mesh belt conveyor belt. On the upper parts of the inner walls on both sides of the workbench frame opening, cleaning support plates horizontally arranged longitudinally are installed. The inner ends of the cleaning support plates are fixedly connected with soft rubber strips for cleaning the mesh belt conveyor belt; a drain valve pipe is installed at the bottom on one side of the liquid storage tank. Inside the lower part of the liquid storage tank, a plurality of vertically arranged swinging anti-disturbance plates are rotatably installed at equal intervals. The upper ends of the swinging anti-disturbance plates are bent into arc-shaped towards the same direction, and the lower end plates of the swinging anti-disturbance plates are bent by 80 degrees towards the other direction. The front and rear ends of the swinging anti-disturbance plates are rotatably connected to the inner wall of the liquid storage tank through pin shafts.

[0010] Preferably, the lower swing mechanism includes a rotating rod arranged at the end of the rotating frame, a drooping plate fixedly installed at the front end of the rotating rod, a turning plate longitudinally and horizontally fixedly connected to the bottom of the front end face of the drooping plate, and a liquid deflecting plate rotatably arranged at the upper part of the front end face of the drooping plate through a pin shaft. A locking component connected to the turning plate is arranged at the front end of the liquid deflecting plate. A driving cavity is formed inside the rotating frame, and a transmission component for driving the rotating rod is arranged inside the driving cavity.

[0011] Preferably, the edges at the tops of both sides of the turning plate are bevel-shaped, and a T-shaped card slot is formed on the front end face of the turning plate; a plurality of turbulence holes are evenly formed on the plate surface of the liquid deflecting plate; a buoyancy strip with an inverted semi-circular cross-section is fixedly connected to the bottom of the liquid deflecting plate.

[0012] Preferably, the locking component includes a limiting strip attached to the front end of the liquid deflecting plate, a return pull rod fixedly penetrating through the top of the limiting strip, a positioning plug fixedly connected to the bottom end of the limiting strip, and a storage cavity formed in the upper part of the front end face of the liquid deflecting plate. The inner end of the return pull rod movably penetrates into the storage cavity and is movably sleeved with a return spring. An anti-detachment plate is fixedly connected to the inner end of the return pull rod, and the rear end of the return spring abuts against the anti-detachment plate; an abutting groove is formed on the front end face of the liquid deflecting plate, a clamping block protruding from the rear end face of the limiting strip is inserted into the abutting groove, and the positioning plug is movably clamped inside the T-shaped card slot.

[0013] Preferably, the transmission component includes a lockless motor installed in the middle of the front end face of the rotating frame, a driving gear longitudinally rotatably arranged in the middle of the driving cavity, a transmission shaft rotatably arranged on the periphery of the driving gear, a driven gear fixedly sleeved on the front end of the transmission shaft, and a driving belt pulley fixedly sleeved on the rear end of the transmission shaft. The rear end of the rotating rod movably penetrates into the driving cavity and is sleeved with a driven belt pulley. A belt is correspondingly sleeved between the driving belt pulley and the driven belt pulley. The driving shaft of the lockless motor movably penetrates into the driving cavity and is coaxially fixedly connected with the driving gear, and the driven gear is in meshing transmission with the driving gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The V-shaped structure of the mesh belt conveyor of the present invention cooperates with the hook-shaped design of the blade to form a forced oil flow circulation; the water-passing strips on the surface of the blade generate turbulence, which directs the low-temperature oil at the bottom to impact the casting; the swing-type anti-disturbance plate combined with its curved surface bending structure prevents the slag from floating up while maintaining the smooth flow of oil, ensuring the rapid replacement of the oil in the high-temperature area; The present invention facilitates switching between two modes according to working conditions through the arrangement of the swing mechanism, the locking assembly and the transmission assembly: the first is the locking mode: a rigid push plate is formed by fixing through a T-shaped slot to assist large castings in lifting out the oil; the second is the floating mode: the turbulence holes on the liquid diverter plate can produce an oil lifting effect, and the inclined edges of the flip plate are used to achieve the purpose of spreading and flattening the slag, greatly reducing the slag aggregation on the oil surface, and the hinged structure of the swing anti-disturbance plate forms a dynamic filter net under the impact of the oil flow, and the slag settles to the bottom of the liquid storage tank, and the cleaning assembly drives the cleaning strip to automatically clean the tank wall through the anti-slip transmission belt; it solves the industry problems such as uneven cooling, slag inclusion in castings, oil mist pollution, etc. in traditional oil cooling, and the cooling cycle of a single product is greatly shortened, which has significant economic benefits and environmental protection value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle; Figure 3 It is a schematic diagram of the overall structure of the present invention from a third viewing angle; Figure 4 This is a schematic diagram of the structure of the present invention from a first viewing angle after the protective cover is removed; Figure 5 It is a schematic diagram of the main structure of the workbench and the liquid storage tank of the present invention; Figure 6 This is a schematic diagram of the structure of the liquid storage tank of the present invention being partially removed; Figure 7 It is a schematic diagram of the swing anti-disturbance plate and the lower structure of the workbench of the present invention; Figure 8 It is a schematic diagram of the pushing mechanism and mesh belt conveyor structure of the present invention from a first viewing angle; Figure 9 It is a schematic diagram of the pushing mechanism and mesh belt conveyor structure of the present invention from a second viewing angle; Figure 10 It is a schematic diagram of the driving mechanism and cleaning component structure of the present invention from a third viewing angle; Figure 11Schematic diagram of the lower hem mechanism and workbench structure of the present invention; Figure 12 Schematic diagram of the positional relationship between the blocking rib and the pressure belt roller of the present invention; Figure 13 Schematic diagram of the rotary frame, lower hem mechanism and workbench structure of the present invention; Figure 14 Schematic diagram of the rotary frame and lower hem mechanism structure of the present invention; Figure 15 Schematic diagram of the drive box, rotary frame and liquid deflector structure of the present invention; Figure 16 Cross-sectional view of the rotary frame structure of the present invention; Figure 17 Schematic diagram of the partial structure of the rotary frame of the present invention; Figure 18 Cross-sectional view of the locking assembly and one side of the liquid deflector of the present invention; Reference numerals in the figure: 1. Liquid storage tank; 2. Workbench; 3. First linear motor; 4. Drive box; 5. Rotary frame; 6. Horizontal rotation shaft; 7. Mesh belt conveyor; 8. Cleaning support plate; 9. Protective cover; 10. Driven shaft; 11. Stirring blade; 12. Anti-slip transmission belt; 13. Cleaning rubber strip; 14. Swing anti-interference plate; 15. Return flow tank; 16. Air dryer; 17. Air guide plate; 18. Reflector; 19. Blocking rib; 20. Pressure belt roller; 21. Second linear motor; 22. Rotating rod; 23. Hanging plate; 24. Turning plate; 25. Liquid deflector; 26. Buoyancy strip; 27. Limiting strip; 28. Positioning insert block; 29. Return pull rod; 30. Return spring; 31. Lockless motor; 32. Driving gear; 33. Transmission shaft; 34. Driven gear; 35. Belt. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Embodiment 1: Refer to Figures 1 to 18A cooling device for automobile die casting production comprises a rectangular liquid storage tank 1, a workbench 2 installed at the top opening of the liquid storage tank 1 and a first linear motor 3 installed at the top rear end of the workbench 2. The liquid storage tank 1 is filled with cooling oil. A driving box 4 is installed on the moving seat of the first linear motor 3. A rotating frame 5 is rotatably installed on the front end surface of the driving box 4. A servo motor for driving the rotating frame 5 is arranged inside the driving box 4. The output shaft of the servo motor is coaxially fixed with the connecting shaft of the rotating frame 5. The front end surfaces of the six ends of the rotating frame 5 are all equipped with a swing mechanism for stirring the oil body in the liquid storage tank 1 and for moving the casting; working The table 2 is a rectangular frame structure, and both sides of the lower part of the liquid storage tank 1 are longitudinally rotated with a horizontal flow shaft 6, a pair of conveying rollers are rotated at intervals in the frame openings on both sides of the workbench 2, and a reduction motor is provided at the rear end of the workbench 2 for driving one of the conveying rollers. A mesh belt conveyor 7 is sleeved between the conveying rollers at both ends of the workbench 2 and the two horizontal flow shafts 6 at the lower part of the liquid storage tank 1. The mesh belt conveyor 7 is a metal mesh belt structure, and a forced oil flow circulation is formed through the V-shaped structure of the mesh belt conveyor 7 and the hook-shaped design of the moving blade 11; a pushing mechanism for the oil body to impact the workpiece is installed on the inner side of the lower part of the liquid storage tank 1.

[0018] Reference Figure 5 , Figure 8 and Figure 10 As shown, the opening lengths at both ends of the workbench 2 exceed the opening length of the liquid storage tank 1, and reflux boxes 15 connected to the inside of the liquid storage tank 1 are installed on both sides of the bottom of the workbench 2, and multiple air dryers 16 are installed at equal intervals on the outer sides of the reflux boxes 15; and the air dryer 16 on the reflux box 15 on one side of the workbench 2 is a cold air blower, and the air dryer 16 on the reflux box 15 on the other side of the workbench 2 is a constant temperature warm air blower. The air dryer 16 (cold air / warm air partition) is used to achieve gradient temperature control when the casting enters and exits the oil, thereby avoiding sudden cooling cracking and oil mist volatilization. The return airflow channel formed by the air guide plate 17 and the reflecting plate 18 prolongs the air drying contact time; the front and rear end surfaces of the workbench 2 are embedded with second linear motors 21, and a protective cover 9 is mounted between the moving seats of the two second linear motors 21; a folded air guide plate 17 is obliquely installed on the side of the reflux box 15 close to the liquid storage tank 1, and a reversely inclined reflecting plate 18 is installed inside the reflux box 15 outside the air guide plate 17, and an exhaust space is provided between the lower end of the reflecting plate 18 and the wind receiving surface of the air guide plate 17; and a reflux outlet is provided between the bottom of the air guide plate 17 and the reflux box 15 with the inner bottom surface inclined.

[0019] Reference Figure 11 and Figure 12As shown, a plurality of blocking ridges 19 are equidistantly arranged on the outer wall of the mesh conveyor belt 7. The mesh conveyor belt 7 cooperates with the blocking ridges 19 to form a casting positioning function, and the soft rubber strip of the cleaning support plate 8 scrapes off the attached residue in real time. The double tensioning design of the belt pressing roller 20 and the support roller ensures that the mesh conveyor belt 7 runs stably in the oil without deviation; the upper inner walls on both sides of the frame opening of the workbench 2 are longitudinally installed with horizontally arranged cleaning support plates 8, and the inner end of the cleaning support plate 8 is fixedly connected with a soft rubber strip for cleaning the mesh conveyor belt 7; a drain valve pipe is installed at the bottom of one side of the liquid storage tank 1, and a plurality of vertically arranged swinging anti-disturbance plates 14 are equidistantly installed on the inner side of the lower part of the liquid storage tank 1, and the upper ends of the swinging anti-disturbance plates 14 are bent in the same direction. It is folded into an arc plate shape, and the lower end plate of the swinging anti-disturbance plate 14 is bent eighty degrees in another direction. The front and rear ends of the swinging anti-disturbance plate 14 are rotatably connected to the inner wall of the liquid storage tank 1 through a pin shaft, and the water-passing strips on the surface of the blade 11 are moved to generate turbulence, and the low-temperature oil at the bottom is directed to impact the casting, thereby effectively improving the cooling efficiency. The swinging anti-disturbance plate 14 is designed with a wide upper, narrow middle, and wide lower channel, combined with its arc-surface bending structure, while blocking the floating of the casting slag, the oil flow is maintained unobstructed, ensuring rapid replacement of the oil in the high-temperature area.

[0020] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Figures 4 to 10 As shown, the pushing mechanism includes a driven shaft 10 rotatably arranged on both sides of the inside of the liquid storage tank 1, a fixed tube installed on the driven shaft 10, three shifting blades 11 equidistantly arranged on the circumference of the fixed tube, and a cleaning component arranged at the front end of the driven shaft 10, the shifting blade 11 is a hook-shaped plate, and a plurality of water-passing strips are equidistantly opened on the surface of the shifting blade 11, and the bending directions of the plurality of shifting blades 11 are all in the same direction; the cleaning component includes an anti-skid transmission belt 12 sleeved on the front and rear ends of the horizontal flow shaft 6, and the outer wall of the anti-skid transmission belt 12 is provided with a plurality of water-passing strips equidistantly. There are multiple groups of cleaning strips 13 for cleaning the inner walls of the front and rear ends of the liquid storage tank 1. The inner walls of the liquid storage tank 1 at the front and rear ends above the horizontal flow shaft 6 are rotatably provided with pressing rollers 20 for compacting the mesh conveyor belt 7. The front and rear ends on both sides of the top of the liquid storage tank 1 are rotatably provided with supporting rollers for supporting the lower belt body of the mesh conveyor belt 7; the hinged structure of the swinging anti-disturbance plate 14 forms a dynamic filter net under the impact of oil flow, and the slag settles to the bottom of the liquid storage tank 1. The cleaning component drives the cleaning strips 13 to automatically clean the box wall through the anti-slip transmission belt 12.

[0021] Embodiment 3: The technical solution is basically the same as that of Embodiment 1, except that Figures 13 to 18As shown in the figure, the lower hem mechanism includes a rotating rod 22 rotatably arranged at the end of the rotating frame 5, a drooping plate 23 fixedly installed at the front end of the rotating rod 22, a turning plate 24 longitudinally and horizontally fixedly connected to the bottom of the front end face of the drooping plate 23, and a liquid deflecting plate 25 rotatably arranged at the upper part of the front end face of the drooping plate 23 through a pin shaft. A locking component connected to the turning plate 24 is arranged at the front end of the liquid deflecting plate 25. A driving cavity is formed inside the rotating frame 5, and a transmission component for driving the rotating rod 22 is arranged inside the driving cavity; the edges at the top of both sides of the turning plate 24 are bevel-shaped, and a T-shaped card slot is formed on the front end face of the turning plate 24. A plurality of turbulence holes are evenly formed on the plate surface of the liquid deflecting plate 25; a buoyancy strip 26 with an inverted semi-circular cross-section is fixedly connected to the bottom of the liquid deflecting plate 25.

[0022] Referring to Figure 18 As shown in the figure, the locking component includes a limiting strip 27 attached to the front end of the liquid deflecting plate 25, a return pull rod 29 fixedly penetrating through the top of the limiting strip 27, a positioning plug 28 fixedly connected to the bottom end of the limiting strip 27, and a receiving cavity formed in the upper part of the front end face of the liquid deflecting plate 25. The inner end of the return pull rod 29 movably penetrates into the receiving cavity, and a return spring 30 is movably sleeved thereon. An anti-detachment plate is fixedly connected to the inner end of the return pull rod 29, and the rear end of the return spring 30 abuts against the anti-detachment plate; a butting groove is formed on the front end face of the liquid deflecting plate 25, a clamping block protruding from the rear end face of the limiting strip 27 is inserted into the butting groove, and the positioning plug 28 is movably clamped inside the T-shaped card slot. The liquid deflecting plate 25 driven by the buoyancy strip 26 can switch between two modes according to the working conditions; the first is the locking mode: a rigid push plate is formed through fixation by the T-shaped card slot to assist the large castings to rise out of the oil; the second is the floating mode: the turbulence holes on the liquid deflecting plate 25 can generate an oil lifting effect, and in cooperation with the bevel edges of the turning plate 24, the purpose of spreading and leveling the casting slag is achieved, and the aggregation degree of the floating slag on the oil surface is greatly reduced.

[0023] Referring to Figure 16 As shown in the figure, the transmission component includes a lockless motor 31 installed in the middle of the front end face of the rotating frame 5, a driving gear 32 longitudinally rotatably arranged in the middle of the driving cavity, a transmission shaft 33 rotatably arranged on the periphery of the driving gear 32, a driven gear 34 fixedly sleeved on the front end of the transmission shaft 33, and a driving pulley fixedly sleeved on the rear end of the transmission shaft 33. The rear end of the rotating rod 22 movably penetrates into the driving cavity and is sleeved with a driven pulley. A belt 35 is correspondingly sleeved between the driving pulley and the driven pulley. The driving shaft of the lockless motor 31 movably penetrates into the driving cavity and is coaxially fixedly connected to the driving gear 32, and the driven gear 34 meshes with the driving gear 32 for transmission.

[0024] Working principle: In this embodiment, the present invention also proposes a use method of a cooling device for automobile die castings, including the following steps: Step 1: First, fill the cooling oil inside the liquid storage tank 1. The liquid level height of the cooling oil should be 5 cm lower than the bottom surface height of the reflux tank 15. Then, electrically connect each electrical component in this device to an external control device. The air dryer 16 on the reflux tank 15 on one side of the workbench 2 is a cold air blower, and the air dryer 16 on the reflux tank 15 on the other side of the workbench 2 is a constant temperature warm air blower. The dual-mode air dryer 16 (cold air / warm air partition) realizes the gradient temperature control when the casting enters and exits the oil, avoiding sudden cooling cracking and oil mist volatilization. The folded air flow channel formed by the air deflector 17 and the reflector 18 extends the air drying contact time and can dry the oil on the surface of the casting when the die casting is conveyed out from the inside of the liquid storage tank 1, avoiding oil dripping. Then, start the reduction motor to drive the roller to rotate, and drive the mesh belt conveyor 7 to rotate through the cooperation of multiple rollers and the horizontal rotation shaft 6. At this time, the rotating mesh belt conveyor 7 plays a role in initially agitating the cooling oil inside the liquid storage tank 1. Then, place the die casting to be cooled at one end of the mesh belt conveyor 7 through an external robotic arm, and drive the die casting to move towards the inside of the liquid storage tank 1 by the forward rotating mesh belt conveyor 7. Step 2: When the die casting moves into the liquid storage tank 1 along with the mesh belt conveyor 7, since the mesh belt conveyor 7 is in a V-like shape as a whole, the die casting on the surface of the mesh belt conveyor 7 will sink into the liquid storage tank 1. The cooling oil inside the liquid storage tank 1 can cool the die casting by oil cooling. And when the die casting is initially placed at one end of the mesh belt conveyor 7, the cold air type air dryer 16 on one side of the workbench 2 is used to initially cool the die casting, avoiding large amounts of oil fume when the high-temperature casting directly sinks into the cooling oil. Step 3: When the horizontal rotation shaft 6 drives the mesh belt conveyor 7 to rotate, through the setting of the anti-slip transmission belt 12, the driven shaft 10 can be driven to rotate. When the driven shaft 10 rotates, the stirring blades 11 can greatly disturb the oil inside the liquid storage tank 1, and can push the lower-temperature oil to impact on the die casting sunk in the cooling oil. At this time, the disturbance of the oil can replace the cooling oil around the die casting, improving the cooling rate of the cooling oil for the die casting. And when the oil impacts the die casting, it can also impact and shed the casting slag on the surface of the die casting, and can also impact and drop the casting slag falling on the surface of the mesh belt conveyor 7 into the liquid storage tank 1, improving the synchronous effect of surface cleaning for the mesh belt conveyor 7. And under the impact of the oil, the die casting on the mesh belt conveyor 7 can be impacted and disturbed, enabling the die casting to collide initially in the cooling oil. When the die casting collides in the oil, the air in the gaps of the die casting can be discharged through the vibration generated by the impact, and then the oil can enter the gaps to cool the holes or gap intervals of the die casting, further improving the cooling effect on the pore parts of the die casting. Step Four: When the oil in the liquid storage tank 1 cools the die-casting part and the casting slag impacts and falls, the casting slag will sink to the inner bottom surface of the liquid storage tank 1 through the falling gap between multiple swing anti-disturbance plates 14. Since the swing anti-disturbance plates 14 are in a hinged state, when the oil in the liquid storage tank 1 flows, the swing anti-disturbance plates 14 will swing with small fluctuations. Since the top of the swing anti-disturbance plate 14 is arc-shaped and the bottom is bent, a slag-falling channel with a wide upper part, a narrow middle part, and a wide lower part, that is, a channel with a constricted neck in the middle, can be formed between the two swing anti-disturbance plates 14. Thus, the swing anti-disturbance plates 14 that swing with the oil can prevent the disturbed casting slag from floating up, ensuring the purity of the cooling oil in the upper part of the liquid storage tank 1; Step Five: After the die-casting part enters the liquid storage tank 1, start the servo motor inside the drive box 4 to drive the rotating frame 5 to rotate. When it is necessary to use the liquid deflector 25 to assist the die-casting part to be conveyed and lifted out of the liquid storage tank 1, at this time, the liquid deflector 25 on the drooping plate 23 is locked and fixed to the flipping plate 24 through the locking assembly, and then start the lockless motor 31 to drive the driving gear 32 to rotate. Then, drive the drooping plate 23 fixed to the rotating rod 22 to rotate through the transmission assembly. The rotating frame 5 drives the lower swing mechanism to sink into the liquid storage tank 1. Then, the rotating drooping plate 23 can push the die-casting part on the belt conveyor 7 during the conveying and lifting process. Moreover, the first linear motor 3 can drive the rotating frame 5 and the lower swing mechanism to move horizontally, facilitating the improvement of the efficiency when boosting and lifting die-casting parts of different sizes out of the liquid storage tank 1; preventing the die-casting part from rolling off the belt conveyor 7 and being unable to be lifted out, improving the smooth conveyance of the cooled die-casting part out of the cooling oil. After the cooled die-casting part is lifted out of the liquid storage tank 1, use the warm-air dryer 16 on the other side of the workbench 2 to blow off the excess oil on the surface of the die-casting part, preventing the die-casting part from dripping oil during subsequent processing; Step Six, when it is necessary to use the lower swing mechanism to further improve the lifting cooling of the cooling oil in the liquid storage tank 1 and the spreading operation of the scum on the surface of the oil body, it is necessary to pull the limit bar 27 outwards to drive the positioning plug 28 to exit the T-shaped card slot at the front end of the turning plate 24, thereby canceling the limit on the liquid deflecting plate 25, separating the bottom end of the liquid deflecting plate 25 from the turning plate 24, facilitating the swinging of the liquid deflecting plate 25 with the top end as the center of the circle, and not requiring the transmission component to drive the rotating rod 22 to rotate. The drooping plate 23 and the turning plate 24 are in a vertical state under the action of gravity. When the rotating frame 5 enters the liquid storage tank 1, the separated liquid deflecting plate 25 can float at the bottom end in the oil body under the buoyancy of the buoyancy bar 26, facilitating the improvement of the stirring effect of the liquid deflecting plate 25 when it enters the oil body. And when the liquid deflecting plate 25 submerged in the oil body rises, the oil body in the liquid storage tank 1 can be lifted through the turbulent holes, and then the rising oil body will drip, achieving the purpose of cooling the oil body during the dripping process of the oil body. And when using the lower swing mechanism, by starting the second linear motor 21, the protective cover 9 can be driven to move to the rotating frame 5 to play a covering role when cooling the oil body or boosting the die-cast part, avoiding the situation of oil body splashing.

[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. A cooling device for automobile die casting production, comprising a rectangular liquid storage tank (1), a workbench (2) installed at the top opening of the liquid storage tank (1), and a first linear motor (3) installed at the top rear end of the workbench (2), characterized in that: The liquid storage tank (1) is filled with cooling oil. A driving box (4) is installed on the moving seat of the first linear motor (3). A rotating frame (5) is rotatably installed on the front end surface of the driving box (4). The front end surfaces of the six ends of the rotating frame (5) are all installed with a swing mechanism for stirring the oil in the liquid storage tank (1) and for moving the casting. The workbench (2) is a rectangular frame structure, and both sides of the lower part of the liquid storage tank (1) are longitudinally rotatably provided with horizontal flow shafts (6). A pair of conveying rollers are rotatably provided in the frame openings on both sides of the workbench (2). A reduction motor for driving one of the conveying rollers is provided at the rear end of the workbench (2). A mesh belt conveyor (7) is sleeved between the conveying rollers at the two ends of the workbench (2) and the two horizontal flow shafts (6) at the lower part of the liquid storage tank (1). A pushing mechanism for the oil to impact the workpiece is installed on the inner side of the lower part of the liquid storage tank (1).

2. A cooling device for automobile die casting production according to claim 1, characterized in that: The opening lengths at both ends of the workbench (2) exceed the opening length of the liquid storage tank (1); return boxes (15) connected to the interior of the liquid storage tank (1) are installed on both sides of the bottom of the workbench (2); multiple air dryers (16) are installed at equal intervals on the outer side surfaces of the return boxes (15); second linear motors (21) are embedded in the front and rear end surfaces of the workbench (2); and a protective cover (9) is installed between the moving seats of the two second linear motors (21).

3. A cooling device for automobile die casting production according to claim 2, characterized in that: A folded plate-shaped air guide plate (17) is obliquely mounted on a side of the return box (15) close to the liquid storage box (1); a reversely obliquely mounted reflective plate (18) is mounted inside the return box (15) outside the air guide plate (17); an exhaust space is provided between the lower end of the reflective plate (18) and the wind receiving surface of the air guide plate (17); and a return flow opening is provided between the bottom of the air guide plate (17) and the inner bottom surface of the inclined return box (15).

4. A cooling device for automobile die casting production according to claim 1, characterized in that: The pushing mechanism comprises a driven shaft (10) rotatably arranged on both sides of the interior of the liquid storage tank (1), a fixed tube mounted on the driven shaft (10), three shifting blades (11) equidistantly arranged on the circumference of the fixed tube, and a cleaning component arranged at the front end of the driven shaft (10), wherein the shifting blade (11) is in the shape of a hook-shaped plate, and a plurality of water-passing strip openings are equidistantly formed on the surface of the shifting blade (11), and the bending directions of the plurality of shifting blades (11) are all oriented in the same direction.

5. A cooling device for automobile die casting production according to claim 4, characterized in that: The cleaning assembly comprises an anti-skid transmission belt (12) sleeved on the front and rear ends of the horizontal flow shaft (6); a plurality of groups of cleaning rubber strips (13) for cleaning the inner walls of the front and rear ends of the liquid storage tank (1) are equidistantly arranged on the outer ring wall of the anti-skid transmission belt (12); belt pressing rollers (20) for pressing the mesh belt conveyor belt (7) are rotatably arranged on the inner walls of the front and rear ends of the liquid storage tank (1) above the horizontal flow shaft (6); and support rollers for supporting the lower belt body of the mesh belt conveyor belt (7) are rotatably arranged on the front and rear ends of both sides of the top of the liquid storage tank (1).

6. A cooling device for automobile die casting production according to claim 1, characterized in that: A plurality of blocking convex strips (19) are equidistantly arranged on the outer ring wall of the mesh conveyor belt (7); a cleaning support plate (8) is longitudinally installed horizontally on the upper inner walls of both sides of the frame opening of the workbench (2); and a soft rubber strip for cleaning the mesh conveyor belt (7) is fixedly connected to the inner end of the cleaning support plate (8); a drain valve pipe is installed at the bottom of one side of the liquid storage tank (1); a plurality of vertically arranged swinging anti-disturbance plates (14) are equidistantly installed on the inner side of the lower part of the liquid storage tank (1); the upper ends of the swinging anti-disturbance plates (14) are bent into an arc shape in the same direction, and the lower end plate body of the swinging anti-disturbance plates (14) is bent at eighty degrees in another direction; the front and rear ends of the swinging anti-disturbance plates (14) are rotatably connected to the inner wall of the liquid storage tank (1) through a pin shaft.

7. The cooling device for automobile die casting production according to claim 1 is characterized in that: The swing mechanism comprises a rotating rod (22) rotatably arranged at the end of the rotating frame (5), a drooping plate (23) fixedly mounted at the front end of the rotating rod (22), a flipping plate (24) longitudinally and horizontally fixedly connected to the bottom of the front end surface of the drooping plate (23), and a liquid-discharging plate (25) rotatably arranged at the upper part of the front end surface of the drooping plate (23) via a pin shaft, a locking assembly connected to the flipping plate (24) is provided at the front end of the liquid-discharging plate (25), and a driving chamber is provided inside the rotating frame (5), and a transmission assembly for driving the rotating rod (22) is provided inside the driving chamber.

8. A cooling device for automobile die casting production according to claim 7, characterized in that: The edges of the tops of both sides of the flip plate (24) are inclined, and a T-shaped slot is provided on the front end surface of the flip plate (24). A plurality of turbulent holes are evenly provided on the plate surface of the liquid-discharging plate (25); and a buoyancy strip (26) having an inverted semicircular cross section is fixedly connected to the bottom of the liquid-discharging plate (25).

9. A cooling device for automobile die casting production according to claim 7, characterized in that: The locking assembly comprises a limit strip (27) attached to the front end of the liquid ejecting plate (25), a pull-back rod (29) fixedly arranged on the top of the limit strip (27), a positioning plug (28) fixedly connected to the bottom end of the limit strip (27), and a storage cavity provided at the upper part of the front end surface of the liquid ejecting plate (25); the inner end of the pull-back rod (29) movably penetrates into the storage cavity and is movably sleeved with a return spring (30); the inner end of the pull-back rod (29) is fixedly connected with an anti-slip plate, and the rear end of the return spring (30) abuts against the anti-slip plate; an abutting groove is provided on the front end surface of the liquid ejecting plate (25); a clamping block protrudes from the rear end surface of the limit strip (27) and is inserted into the abutting groove; and the positioning plug (28) is movably clamped in the T-shaped clamping groove.

10. A cooling device for automobile die casting production according to claim 7, characterized in that: The transmission assembly comprises a non-locking motor (31) mounted in the middle of the front end surface of the rotating frame (5), a driving gear (32) longitudinally rotatably arranged in the middle of the driving cavity, a transmission shaft (33) rotatably arranged on the peripheral side of the driving gear (32), a driven gear (34) fixedly sleeved on the front end of the transmission shaft (33), and a driving pulley fixedly sleeved on the rear end of the transmission shaft (33); the rear end of the rotating rod (22) movably penetrates into the interior of the driving cavity and is sleeved with a driven pulley, and a belt (35) is correspondingly sleeved between the driving pulley and the driven pulley; the driving shaft of the non-locking motor (31) movably penetrates into the interior of the driving cavity and is coaxially fixedly connected to the driving gear (32), and the driven gear (34) is meshed with the driving gear (32) for transmission.

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