Cooling device for casting machining

Abstract

The invention discloses a cooling device for casting machining, and mainly relates to the field of casting cooling. Comprising a cooling box and a conveying line located above the cooling box, a hanging frame is slidably connected to the conveying line, a hook used for hanging a casting is arranged at the bottom of the hanging frame, a sliding sleeve is arranged at the bottom of the hanging frame, a sliding rod is slidably connected into the sliding sleeve in the vertical direction, a compression spring is arranged between the sliding rod and the sliding sleeve, and a fixing base is arranged on the sliding rod; guide wheels are symmetrically and rotationally connected to the fixing base, guide rails are symmetrically arranged above the cooling box, transition parts matched with the guide wheels for use are symmetrically arranged at the two ends of the guide rails, the transition parts are obliquely arranged, and the bottom ends of the transition parts in the oblique direction are connected with the guide rails. The casting cooling device has the beneficial effects that the technical problems that an existing casting cooling mode is low in cooling efficiency and uneven in cooling can be solved, and the casting cooling efficiency and uniformity are greatly improved through water spraying cooling and evaporation heat absorption of the rotating casting.

Description

Technical Field

[0001] The invention relates to the field of casting cooling, in particular to a cooling device for casting processing. Background Art

[0002] After the casting is formed by pouring, it is necessary to cool the casting in order to put it into subsequent production and processing procedures more quickly. The existing method is generally to hang the casting on a conveyor line and cool it down after passing through a curved and extended air cooling workshop. However, this cooling method causes the air cooling workshop to occupy a large area, and the casting takes a long time to pass through the air cooling workshop, and the cooling efficiency is low, which affects the continuity of subsequent processing. The air cooling method also has an uneven cooling effect on various positions of the casting, resulting in inconsistent temperatures in various parts of the casting after cooling, making it difficult for the casting as a whole to quickly drop to the specified temperature. Therefore, the cooling efficiency and uniformity of the casting cooling method need to be further improved. Summary of the invention

[0003] The object of the present invention is to provide a cooling and cooling device for casting processing, which can solve the technical problems of low cooling efficiency and uneven cooling in the existing method of cooling and cooling castings. By spraying water to cool the rotating castings and absorbing heat by evaporation, the heat in the castings can be quickly taken away, thereby greatly improving the efficiency and uniformity of cooling and cooling the castings.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A cooling device for casting processing comprises a cooling box and a conveyor line located above the cooling box, a hanging rack is slidably connected to the conveyor line, a hook for hanging the casting is provided at the bottom of the hanging rack, a sliding sleeve is provided at the bottom of the hanging rack, a sliding rod is vertically slidably connected to the inside of the sliding sleeve, a compression spring is provided between the sliding rod and the sliding sleeve, a fixed seat is provided on the sliding rod, and a guide wheel is symmetrically connected to the fixed seat for rotation, a guide rail is symmetrically provided above the cooling box, and transition parts used for matching with the guide wheels are symmetrically provided at both ends of the guide rail, the transition part is inclined, and the bottom end of the transition part in the inclined direction is connected to the guide rail, and when the guide wheel enters the guide rail, the casting enters the inside of the cooling box. The sliding rod is rotatably connected to a rotating seat at a position below the fixed seat, the hook is arranged at the bottom end of the rotating seat, a turntable is arranged on the rotating seat, driving chains for driving the turntable to rotate are arranged on both sides of the cooling box, and the moving directions of the driving chains on both sides are opposite. A plurality of driving blocks are arranged in an array on the driving chain, and the driving blocks are in contact with the side of the turntable. A spray chamber and an evaporation chamber are arranged inside the cooling box, a plurality of spray nozzles are symmetrically arranged in the spray chamber, a plurality of air jet nozzles are symmetrically arranged in the evaporation chamber, a refrigerant tank is also arranged at the bottom of the evaporation chamber, a plurality of refrigerant holes are arranged on the refrigerant tank, and a plurality of drainage fans are rotatably connected to the position above the refrigerant holes on the refrigerant tank.

[0006] Furthermore, a piston is provided on the top of the slide rod, and the piston is slidably connected to the inside of the slide sleeve. A retaining edge cooperating with the piston is provided on the bottom of the slide sleeve, and the compression spring is arranged between the piston and the retaining edge.

[0007] Furthermore, the top and bottom ends of the transition portion are both arc-shaped, and the guide wheel is in rolling contact with the lower side of the transition portion.

[0008] Furthermore, a fixed plate is symmetrically provided on the top of the cooling box, and the side of the guide rail is fixedly connected to the fixed plate. A driving shaft and a driven shaft are rotatably connected to the fixed plate. A motor for driving the driving shaft to rotate is provided on the fixed plate, and both the driving shaft and the driven shaft are provided with sprockets that mesh with the drive chain.

[0009] Furthermore, a gear is provided on the outer side of the turntable, and a plurality of tooth grooves are provided on the driving block, and the side surfaces of adjacent driving blocks are in contact with each other, and the plurality of driving blocks with tooth grooves form a tooth plate meshing with the gear.

[0010] Furthermore, magnetic blocks for magnetic attraction are provided on the side surfaces of the adjacent driving blocks.

[0011] Furthermore, the induced draft fan includes a rotating shaft rotatably connected to the refrigerant tank, a plurality of fan blades are arranged on the rotating shaft, and a synchronous belt is arranged between the rotating shaft and the driving shaft.

[0012] Furthermore, a temperature sensor used in conjunction with the casting is provided inside the cooling box, and the temperature sensor is electrically connected to the motor.

[0013] Furthermore, a sliding plate for controlling the opening and closing of the refrigerant hole is symmetrically slidably connected inside the refrigerant tank, and a power component for driving the sliding plate to slide is provided inside the refrigerant tank.

[0014] Furthermore, the power assembly includes a cam and a return spring, wherein the return spring is arranged between the sliding plate and the side wall of the refrigerant tank, the cam is rotatably connected to the inside of the refrigerant tank, and the side of the sliding plate away from the return spring contacts the cam.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The structure of the present invention includes a cooling box and a conveyor line located above the cooling box. The casting is hung on a hanger and moves along the conveyor line. When it passes through the guide rail above the cooling box, the guide wheel on the fixed seat of the hanger contacts the transition part at the end of the guide rail. Under the pressure of the transition part, the slide bar where the hook is located slides downward along the slide sleeve, thereby moving the casting downward. When the guide wheel enters the guide rail, the casting also completely enters the interior of the cooling box, thereby completing the cooling and cooling operation of the casting in the relatively closed cooling box, avoiding the splashing of cooling water and other liquids used for cooling and cooling into the external environment, and ensuring the cleanliness of the cooling and cooling place;

[0017] 2. The position of the slide bar below the fixed seat is rotatably connected with a rotating seat, a hook is arranged at the bottom end of the rotating seat, a turntable is arranged on the rotating seat, and a driving chain for driving the turntable to rotate is symmetrically arranged in the cooling box, and the moving directions of the two driving chains are opposite. A plurality of driving blocks in contact with the side of the turntable are arranged in an array on the driving chain. With such a structure, after the casting enters the cooling box, the turntable on the rotating seat where the casting is located contacts the driving blocks on the driving chains on both sides, so that the casting keeps in a forward state and also rotates relative to the slide bar under the drive of the turntable, so that the cooling medium can be in uniform contact with various positions of the casting, so that the cooling and cooling operation of the casting is faster and more uniform, which greatly improves the efficiency and uniformity of cooling and cooling, greatly saves the floor space occupied by the cooling and cooling site, and ensures the continuity of subsequent processing and production of the casting;

[0018] 3. A spray chamber and an evaporation chamber are arranged inside the cooling box. A plurality of spray nozzles are symmetrically arranged in the spray chamber, and a plurality of air jet nozzles are symmetrically arranged in the evaporation chamber. A refrigerant tank is also arranged at the bottom of the evaporation chamber. A plurality of drainage fans are rotatably connected above the refrigerant hole of the refrigerant tank. Such a structure uses the spray nozzle to spray cooling water to various positions on the rotating surface of the casting, thereby increasing the contact area between the cooling water and the surface of the casting and improving the cooling efficiency. After the casting is sprayed and cooled, the casting enters the evaporation chamber, and the air jet nozzle is used to spray and cool the surface of the casting, so that the cooling water evaporates and dries quickly. At the same time, the cooling water takes away the heat from the surface of the casting when it evaporates, further improving the cooling efficiency. If the temperature of the casting is still high after cooling, the drainage fan can be used to drain the refrigerant in the refrigerant tank from the bottom to the surface of the casting, thereby performing rapid heat exchange, further improving the efficiency of cooling and cooling the casting, and making the surface of the casting drop to a specified temperature quickly, further improving the efficiency and uniformity of cooling and cooling the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0020] Attached Figure 2 This invention is attached Figure 1 A partial enlarged view of area A in the middle.

[0021] Attached Figure 3 It is a right side view of the present invention.

[0022] Attached Figure 4 This invention is attached Figure 3 Cross-sectional view along the BB direction.

[0023] Attached Figure 5 This invention is attached Figure 4 Cross-sectional view along CC direction.

[0024] Attached Figure 6 This invention is attached Figure 5 A partial enlarged view of area D in the middle.

[0025] Attached Figure 7 This invention is attached Figure 4 Cross-sectional view along the EE direction.

[0026] Attached Figure 8 This invention is attached Figure 4 Cross-sectional view in the FF direction.

[0027] Numbers shown in the accompanying drawings:

[0028] 1. Cooling box; 2. Conveyor line; 3. Hanger; 4. Hook; 5. Sliding sleeve; 6. Sliding rod; 7. Compression spring; 8. Fixed seat; 9. Guide wheel; 10. Guide rail; 11. Transition part; 12. Rotating seat; 13. Turntable; 14. Driving chain; 15. Driving block; 16. Spray chamber; 17. Evaporation chamber; 18. Spray nozzle; 19. Jet nozzle; 20. Refrigerant tank; 21. Refrigerant hole; 22. Piston; 23. Retaining edge; 24. Fixed plate; 25. Driving shaft; 26. Driven shaft; 27. Motor; 28. Gear; 29. ​​Tooth groove; 30. Rotating shaft; 31. Fan blade; 32. Synchronous belt; 33. Temperature sensor; 34. Sliding plate; 35. Cam; 36. Reset spring. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0030] Reference Figure 1 and Figure 3The present invention discloses a cooling and temperature reduction device for casting processing, wherein the main structure comprises a cooling box 1 and a conveyor line 2 located above the cooling box 1, wherein the conveyor line 2 is welded or bolted to the roof of the cooling place by a plurality of suspension rods, so that the conveyor line 2 can be suspended in the air for hanging and transporting the castings, and the cooling box 1 is located below the conveyor line 2, and its top is open, so that the castings can enter the cooling box 1 for cooling and temperature reduction treatment when moving along the conveyor line 2, and a hanging rack 3 is slidably connected to the conveyor line 2, and the specific longitudinal section of the conveyor line 2 is an inverted T-shaped, and the hanging rack 3 is slidably connected to the bottom of the inverted T-shaped conveyor line 2, and a plurality of moving wheels are rotatably connected to the hanging rack 3 through bearings, and the moving wheels are in rolling contact with the bottom of the inverted T-shaped conveyor line 2, so that the external power chain The bar can pull the hanger 3 to move along the conveyor line 2 to realize continuous conveying operation of the casting. The bottom of the hanger 3 is provided with a hook 4 for hanging the casting, and the casting is hung on the hook 4. The bottom of the hanger 3 is fixed with a sliding sleeve 5 by welding or bolts. The sliding sleeve 5 is a tubular structure. The interior of the sliding sleeve 5 is vertically slidably connected with a sliding rod 6. A compression spring 7 is provided between the sliding rod 6 and the sliding sleeve 5. Under the action of the compression spring 7, the sliding rod 6 is located inside the sliding sleeve 5, so that the sliding rod 6 and the sliding sleeve 5 are located at a high place to suspend and convey the casting, and the space below the conveyor line 2 will not be occupied, thereby improving the utilization rate of the space. The sliding rod 6 is fixed with a fixed seat 8 by welding or bolts. A guide wheel 9 is symmetrically connected to the cooling box 1 through bearing rotation. A guide rail 10 is symmetrically fixed on the top of the cooling box 1 through welding or bolts. The sliding bar 6 passes through the area between the two guide rails 10 and advances. The guide wheels 9 on both sides of the fixed seat 8 of the sliding bar 6 are in rolling contact with the bottom of the guide rail 10, so that it can move along the guide rail 10. Transition parts 11 used in conjunction with the guide wheels 9 are symmetrically fixed by welding or bolts at both ends of the guide rail 10. The transition part 11 is tilted, and the bottom end of the transition part 11 in the tilted direction is welded or integrally formed with the guide rail 10, that is, the height of the transition part 11 gradually decreases in the direction toward the guide rail 10. When the guide wheel 9 enters the guide rail 10, the casting enters the interior of the cooling box 1. Such a structure is in sliding When the rod 6 and the fixed seat 8 move along the conveyor line 2 and pass through the guide rail 10, they first contact the transition portion 11 at the end of the guide rail 10, and under the pressure of the transition portion 11, a downward pressure is generated on the slide rod 6 and the fixed seat 8, so that the slide rod 6 and the fixed seat 8 slide downward relative to the sliding sleeve 5, compressing the compression spring 7, so that the slide rod 6 and the fixed seat 8 also slide downward while advancing along the conveyor line 2. During this process, the guide wheel 9 on the fixed seat 8 rolls along the transition portion 11 and the guide rail 10, making the forward and downward processes of the fixed seat 8 smoother, until the guide wheel 9 rolls onto the guide rail 10, the casting at the bottom of the slide rod 6 completely enters the interior of the cooling box 1, so that the casting in the relatively closed cooling box 1 is cooled and cooled.The cooling water and other media used for cooling are not easy to spill into the surrounding environment, ensuring the cleanliness of the cooling place. After the cooling is completed, the guide wheel 9 rises along the transition part 11 at the other end of the guide rail 10 under the rental of the compression spring 7, so that the casting is suspended at the bottom of the conveyor line 2 after rising and continues to be conveyed forward, which does not affect the processing operations such as impurity removal after the casting, making the entire cooling process faster and smoother;

[0031] The position below the fixed seat 8 on the slide bar 6 is rotatably connected to a rotating seat 12 through a bearing. The rotating seat 12 can rotate around the center line of the slide bar 6. The hook 4 is fixed to the bottom end of the rotating seat 12 by welding or bolts, so that the casting on the hook 4 can rotate along the bottom of the slide bar 6, so that the cooling water and other cooling media in the cooling box 1 can be evenly sprayed on various positions of the casting, thereby improving the uniformity of cooling the casting. A turntable 13 is fixed to the rotating seat 12 by welding or bolts, so that the turntable 13 can be used to drive the rotating seat 12 to rotate. Both sides of the cooling box 1 are provided with a drive chain 14 for driving the turntable 13 to rotate. The moving directions of the drive chains 14 on both sides are opposite. 4 is provided with a plurality of drive blocks 15 in an array fixed by welding or bolts, and the drive blocks 15 are in contact with the side of the turntable 13. With such a structure, after the casting enters the interior of the cooling box 1, the drive blocks 15 on the drive chains 14 on both sides of the cooling box 1 are in contact with the side of the turntable 13 respectively, and the turntable 13 in contact with it is driven to rotate by the opposite movement of the drive chains 14 on both sides, so as to realize the self-rotation drive of the casting, so that the casting is automatically in a state of rotation and advancement after entering the interior of the cooling box 1, so that the whole cooling process is faster and more uniform. The interior of the cooling box 1 is provided with a spray chamber 16 and an evaporation chamber 17, the spray chamber 16 is used to spray cooling water or other cooling media onto the surface of the casting, and the evaporation chamber 17 is used to spray air toward the casting so as to cool the casting. The cooling medium such as cooling water evaporates quickly, and the heat of the casting surface is taken away during the evaporation process to achieve rapid cooling. The spray chamber 16 is symmetrically provided with a plurality of spray nozzles 18, and the plurality of spray nozzles 18 are connected to the water inlet pipe of the cooling water, so that the rotating casting is sprayed and cooled on both sides, and the heat on the casting is taken away after the cooling water heat exchange. The evaporation chamber 17 is symmetrically provided with a plurality of air nozzles 19, and the air nozzles 19 are connected to the air inlet pipe of the air supply, so that the cooling gas is sprayed from both sides to the casting surface with cooling water through the air nozzles 19, so that the cooling water evaporates quickly, and will not affect the subsequent processing procedures of the casting. At the same time, the cooling water takes away the heat of the casting surface when evaporating, which is more uniform and efficient than the traditional air cooling method. A refrigerant tank 20 is also provided at the bottom of 17, and dry ice and other vaporizable refrigerant materials are stored in the refrigerant tank 20. A plurality of refrigerant holes 21 are provided on the refrigerant tank 20, and the refrigerant is discharged from the refrigerant holes 21 after being vaporized. A plurality of drainage fans are rotatably connected to the position above the refrigerant holes 21 on the refrigerant tank 20. When the temperature of the casting is still high after cooling, the drainage fan is used to quickly drain the vaporized refrigerant discharged from the refrigerant holes 21 to the bottom of the casting, so as to quickly exchange heat with the cooled casting again. At this time, the temperature of the casting has dropped a lot compared to that before cooling. Therefore, the contact between the cooled casting and the refrigerant will not cause structural damage to the casting. The casting can be quickly cooled in a short time, so that the overall cooling of the casting is more uniform and efficient.

[0032] Preferably, refer to Figure 4 The top of the slide rod 6 is welded or integrally formed with a piston 22, and the piston 22 is slidably connected to the inside of the sleeve 5. Such a structure makes the sliding movement of the slide rod 6 relative to the sleeve 5 smoother and the sliding structure more stable. The bottom of the sleeve 5 is welded or integrally formed with a retaining edge 23 used to cooperate with the piston 22. The retaining edge 23 is provided with a sliding hole inside, and the slide rod 6 passes through the sliding hole and is slidably connected thereto. The compression spring 7 is arranged between the piston 22 and the retaining edge 23. Such a structure uses the retaining edge 23 to limit the maximum distance moved by the piston 22, so that the slide rod 6 carrying the casting will not be separated from the sleeve 5. At the same time, the piston 22 and the retaining edge 23 are used to limit the position of the compression spring 7, so that the casting can accurately slide upward and reset under the action of the restoring elastic force of the compression spring 7 after cooling and cooling, thereby improving the smoothness and accuracy of the up and down movement of the casting.

[0033] Preferably, refer to Figure 2 The top and bottom ends of the transition portion 11 are both arc-shaped, and the guide wheel 9 is in rolling contact with the lower side of the transition portion 11. The arc-shaped structure makes it smoother for the guide wheel 9 to roll in contact with it and move along it, and it is less likely for the casting to get stuck. The transition portion 11 can accurately guide the fixed seat 8 with the guide wheel 9, so that the casting can enter and exit the cooling box 1 more smoothly and efficiently.

[0034] Preferably, a fixing plate 24 is symmetrically fixed to the top of the cooling box 1 by welding or bolts, and the side of the guide rail 10 is fixedly connected to the fixing plate 24 by welding or bolts, and the fixing plate 24 is used to provide support for the guide rail 10. A driving shaft 25 and a driven shaft 26 are rotatably connected to the fixing plate 24 through bearings, and a motor 27 for driving the driving shaft 25 to rotate is fixed to the fixing plate 24 by welding or bolts. Sprockets meshing with the drive chain 14 are welded or bolted to the driving shaft 25 and the driven shaft 26, and the sprockets are not shown in the accompanying drawings. Such a structure uses the motor 27 to drive the driving shaft 25 to rotate, so that the driving shaft 25 is meshed with the sprocket and then cooperates with the meshing support of the sprocket on the driven shaft 26 to realize the rotational drive of the drive chain 14. The fixing plate 24 is used to support the guide rail 10 and the drive chain 14, thereby ensuring the stability of the rotational drive of the casting.

[0035] Preferably, refer to Figure 5 and Figure 6The outer side of the turntable 13 is fixed with a gear 28 by welding or integral molding, and the driving block 15 is provided with a plurality of tooth grooves 29, the shape of the tooth grooves 29 corresponds to the gear 28, and the side surfaces of the adjacent driving blocks 15 are in contact, and the plurality of driving blocks 15 with tooth grooves 29 form a tooth plate meshing with the gear 28. Such a structure enables all the driving blocks 15 in the area between the two ends of the driving chain 14 to form a tooth plate structure after contact. When the casting moves forward in the cooling box 1, the gear 28 and the tooth plate can be driven to rotate automatically under the meshing of the gear 28 and the tooth plate. Further, when the driving chain 14 drives the tooth plate to move, the rotation of the gear 28 meshing therewith is accelerated, so that the speed of the casting rotation can be adjusted by the rotation speed of the driving chain 14, and then the speed of its rotation can be adaptively adjusted according to the size and shape of the casting, so as to meet the cooling and cooling requirements of castings of different sizes and shapes, improve the adaptability to the cooling and cooling of castings of different sizes and shapes, and meet the needs of rapid cooling of castings of different types.

[0036] Preferably, the sides of adjacent driving blocks 15 are welded or bolted with magnetically attracted magnets, which are not shown in the accompanying drawings. Such a structure enables the driving blocks 15 between the two ends of the driving chain 14 to be fixed into one body by the attraction of multiple magnetic blocks, so that the formed tooth plate structure is more stable, so that it can be more secure when meshing with the gear 28, avoiding the situation where the middle of the driving block 15 is disconnected, and improving the accuracy and stability of the rotational drive of the gear 28 and the turntable 13.

[0037] Preferably, refer to Figure 7 The induced draft fan includes a rotating shaft 30 rotatably connected to the refrigerant tank 20 through a bearing, and a plurality of fan blades 31 are fixed to the rotating shaft 30 by welding or bolts. A synchronous belt 32 is provided between the rotating shaft 30 and the driving shaft 25. Such a structure enables the motor 27 to not only drive the driving shaft 25 to rotate and thereby realize the rotation drive of the drive chain 14, thereby realizing the adjustment of the rotation speed of the casting, but also drive the rotation of the induced draft fan through the synchronous belt 32, so that the rotation speed of the fan blades 31 of the rotating shaft 30 can be adjusted, thereby adjusting the drainage amount of the refrigerant. Such a structure greatly simplifies the complexity of the driving structure, improves the utilization rate of the power device, and enables the rotation speed of the casting and the amount of refrigerant used to be adaptively adjusted according to different types of castings, further improving the adaptability to cooling and lowering the temperature of different types of castings.

[0038] Preferably, the interior of the cooling box 1 is provided with a temperature sensor 33 used in conjunction with the casting. Infrared rays are generally used for temperature measurement. The temperature sensor 33 is electrically connected to the motor 27. Such a structure allows the temperature of the casting after spray cooling and evaporation cooling to be detected by the temperature sensor 33, so that the motor 27 can increase the rotation speed when the cooling temperature does not meet the standard, so that the casting rotates faster and a larger amount of refrigerant quickly contacts the casting, which greatly improves the cooling speed of the casting and improves the effect of cooling the casting in a short time.

[0039] Preferably, refer to Figure 8 The refrigerant tank 20 is symmetrically slidably connected inside with a sliding plate 34 for controlling the opening and closing of the refrigerant hole 21. Specifically, a track is set on the inner wall of the refrigerant hole 21 of the refrigerant tank 20, and the sliding plate 34 is slidably connected to the track. The sliding plate 34 is covered with an insulation layer to prevent the temperature of the internal refrigerant from being reduced due to external influences. The refrigerant tank 20 is provided with a power component for driving the sliding plate 34 to slide. When the refrigerant is not needed, such a structure uses the power component to drive the sliding plate 34 to slide to the bottom of the refrigerant hole 21 to close it, so that the refrigerant inside the refrigerant tank 20 will not overflow and cause waste. When needed, the sliding plate 34 is used to open the refrigerant hole 21, thereby saving the use of refrigerant, avoiding waste of refrigerant, and reducing the cost of cooling the casting.

[0040] Preferably, the power assembly includes a cam 35 and a return spring 36. The return spring 36 is arranged between the sliding plate 34 and the side wall of the refrigerant tank 20. When the sliding plate 34 slides, the return spring 36 is compressed. The cam 35 is rotatably connected to the inside of the refrigerant tank 20 through a bearing. The cam 35 is driven to rotate by the motor 27. The side of the sliding plate 34 away from the return spring 36 contacts the cam 35. Such a structure drives the sliding plate 34 to slide when the long axis of the cam 35 contacts the sliding plate 34 to compress the return spring 36, thereby opening the refrigerant hole 21. When the cam 35 continues to rotate so that the short axis of the cam 35 contacts the sliding plate 34, the sliding plate 34 resets and slides under the action of the return spring 36 to close the refrigerant hole 21, thereby making the opening and closing control of the refrigerant hole 21 more convenient and accurate.

[0041] Working principle: The structure of the present invention includes a cooling box 1 and a conveyor line 2 located above the cooling box 1. The casting is hung on the hanger 3 and moves along the conveyor line 2. When it passes through the guide rail 10 above the cooling box 1, the guide wheel 9 on the fixed seat 8 of the hanger 3 contacts the transition part 11 at the end of the guide rail 10. Under the pressure of the transition part 11, the slide bar 6 where the hook 4 is located slides downward along the slide sleeve 5, thereby causing the casting to move downward. When the guide wheel 9 enters the guide rail 10, the casting also completely enters the interior of the cooling box 1, thereby allowing the casting to complete the cooling and cooling operation in the relatively closed cooling box 1, thereby avoiding the splashing of cooling water and other liquids used for cooling and cooling into the external environment, and ensuring the cooling and cooling field The neatness of the place; the position below the fixed seat 8 on the slide bar 6 is rotatably connected with a rotating seat 12, the hook 4 is arranged at the bottom of the rotating seat 12, and a turntable 13 is arranged on the rotating seat 12. A driving chain 14 for driving the turntable 13 to rotate is symmetrically arranged in the cooling box 1. The moving directions of the two driving chains 14 are opposite. A plurality of driving blocks 15 in contact with the side surfaces of the turntable 13 are arranged in an array on the driving chain 14. With such a structure, after the casting enters the cooling box 1, the turntable 13 on the rotating seat 12 where the casting is located contacts the driving blocks 15 on the driving chains 14 on both sides, so that the casting keeps in a forward state while also rotating relative to the slide bar 6 driven by the turntable 13, thereby cooling down the temperature. The medium can be in uniform contact with each position of the casting, so that the cooling and cooling operation of the casting is faster and more uniform, which greatly improves the efficiency and uniformity of cooling and cooling, greatly saves the floor space of the cooling and cooling site, and ensures the continuity of subsequent processing and production of the casting; a spray chamber 16 and an evaporation chamber 17 are arranged inside the cooling box 1, a plurality of spray nozzles 18 are symmetrically arranged in the spray chamber 16, a plurality of air nozzles 19 are symmetrically arranged in the evaporation chamber 17, a refrigerant tank 20 is also arranged at the bottom of the evaporation chamber 17, and a plurality of drainage fans are rotatably connected above the refrigerant hole 21 of the refrigerant tank 20. Such a structure uses the spray nozzle 18 to spray cooling water to each part of the rotating casting surface The contact area between the cooling water and the surface of the casting is increased, thereby improving the cooling efficiency. After the casting is sprayed and cooled, the casting enters the evaporation chamber 17, and the air nozzle 19 is used to spray and cool the surface of the casting, so that the cooling water evaporates and dries quickly. At the same time, the cooling water takes away the heat from the surface of the casting when it evaporates, further improving the cooling efficiency. If the temperature of the casting is still high after cooling, the drainage fan can be used to drain the refrigerant in the refrigerant tank 20 from the bottom to the surface of the casting, so as to perform rapid heat exchange, further improving the efficiency of cooling the casting, and making the surface of the casting drop to the specified temperature quickly, further improving the efficiency and uniformity of cooling the casting.

Claims

1. A cooling device for casting processing, comprising a cooling box (1) and a conveyor line (2) located above the cooling box (1), a hanging rack (3) being slidably connected to the conveyor line (2), a hook (4) for hanging the casting being provided at the bottom of the hanging rack (3), characterized in that: A sliding sleeve (5) is provided at the bottom of the hanger (3), and a sliding rod (6) is vertically slidably connected inside the sliding sleeve (5), and a compression spring (7) is provided between the sliding rod (6) and the sliding sleeve (5). A fixed seat (8) is provided on the sliding rod (6), and a guide wheel (9) is symmetrically rotatably connected to the fixed seat (8). A guide rail (10) is symmetrically provided above the cooling box (1), and transition parts (11) used to cooperate with the guide wheel (9) are symmetrically provided at both ends of the guide rail (10). The transition part (11) is inclined, and the bottom end of the transition part (11) in the inclined direction is connected to the guide rail (10). When the guide wheel (9) enters the guide rail (10), the casting enters the interior of the cooling box (1). A rotating seat (12) is rotatably connected to the position of the sliding rod (6) below the fixed seat (8). The hook (4) is arranged on the rotating seat (1 2), a turntable (13) is arranged on the rotating seat (12), and drive chains (14) for driving the turntable (13) to rotate are arranged on both sides of the cooling box (1), and the moving directions of the drive chains (14) on both sides are opposite. A plurality of drive blocks (15) are arranged in an array on the drive chain (14), and the drive blocks (15) are in contact with the side of the turntable (13). A spray chamber (16) and an evaporation chamber (17) are arranged inside the cooling box (1), and a plurality of spray nozzles (18) are symmetrically arranged in the spray chamber (16), and a plurality of air jet nozzles (19) are symmetrically arranged in the evaporation chamber (17). A refrigerant tank (20) is also arranged at the bottom of the evaporation chamber (17), and a plurality of refrigerant holes (21) are arranged on the refrigerant tank (20), and a plurality of drainage fans are rotatably connected at a position above the refrigerant holes (21) on the refrigerant tank (20).

2. A cooling device for casting processing according to claim 1, characterized in that: A piston (22) is provided at the top of the slide rod (6), and the piston (22) is slidably connected to the inside of the slide sleeve (5). A retaining edge (23) used in conjunction with the piston (22) is provided at the bottom of the slide sleeve (5), and the compression spring (7) is arranged between the piston (22) and the retaining edge (23).

3. A cooling device for casting processing according to claim 1, characterized in that: The top and bottom ends of the transition portion (11) are both arc-shaped, and the guide wheel (9) is in rolling contact with the lower side of the transition portion (11).

4. A cooling device for casting processing according to claim 1, characterized in that: A fixed plate (24) is symmetrically provided on the top of the cooling box (1), and the side of the guide rail (10) is fixedly connected to the fixed plate (24). A driving shaft (25) and a driven shaft (26) are rotatably connected to the fixed plate (24). A motor (27) for driving the driving shaft (25) to rotate is provided on the fixed plate (24), and sprockets meshing with the drive chain (14) are provided on the driving shaft (25) and the driven shaft (26).

5. A cooling device for casting processing according to claim 4, characterized in that: A gear (28) is provided on the outer side of the rotating disk (13), and a plurality of tooth grooves (29) are provided on the driving block (15). The side surfaces of adjacent driving blocks (15) are in contact with each other, and the plurality of driving blocks (15) with tooth grooves (29) form a tooth plate meshing with the gear (28).

6. A cooling device for casting processing according to claim 5, characterized in that: The side surfaces of the adjacent driving blocks (15) are provided with magnetically attracted magnetic blocks.

7. A cooling device for casting processing according to claim 4, characterized in that: The induced draft fan comprises a rotating shaft (30) rotatably connected to a refrigerant tank (20), a plurality of fan blades (31) are arranged on the rotating shaft (30), and a synchronous belt (32) is arranged between the rotating shaft (30) and a driving shaft (25).

8. A cooling device for casting processing according to claim 7, characterized in that: A temperature sensor (33) used in conjunction with the casting is provided inside the cooling box (1), and the temperature sensor (33) is electrically connected to the motor (27).

9. A cooling device for casting processing according to claim 1, characterized in that: The refrigerant tank (20) is symmetrically slidably connected inside with a sliding plate (34) for controlling the opening and closing of the refrigerant hole (21), and a power component for driving the sliding plate (34) to slide is provided inside the refrigerant tank (20).

10. A cooling device for casting processing according to claim 9, characterized in that: The power assembly includes a cam (35) and a return spring (36). The return spring (36) is arranged between the sliding plate (34) and the side wall of the refrigerant tank (20). The cam (35) is rotatably connected to the inside of the refrigerant tank (20), and the side of the sliding plate (34) away from the return spring (36) is in contact with the cam (35).

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