Heat treatment equipment for aluminum alloy casting

Abstract

The invention discloses heat treatment equipment for an aluminum alloy casting, and belongs to the field of aluminum alloy castings, the heat treatment equipment comprises a box body, a partition plate is arranged in the box body, the partition plate divides the box body into two cavities, namely a heating area and a cooling area, and a bearing frame for bearing the casting is arranged in the heating area; a driving assembly for driving the bearing frame is arranged on the box body; the cooling area is provided with a double cooling system, the partition plate is provided with a conveying opening and rotationally provided with a conveying column, the conveying column is internally provided with a containing groove used for containing castings, the top of the containing groove is slidably provided with a first shielding plate, and the bottom of the containing groove is rotationally provided with a second shielding plate. The conveying column is provided with a switching mechanism for driving the first shielding plate and the second shielding plate to be opened and closed, and the conveying column is slidably connected to the inner wall of the conveying opening. The device has the effects that the influence of cold and hot airflow on the casting is reduced, and thus the casting machining quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aluminum alloy castings, and in particular to a heat treatment device for aluminum alloy castings. Background Art

[0002] In the field of mechanical manufacturing, aluminum alloy castings are widely used in a variety of industries such as aerospace, automobile manufacturing, and electronic equipment due to their many advantages such as light weight, high strength, and corrosion resistance. Aluminum alloy casting heat treatment refers to a thermal processing process that uses heating, insulation, and cooling to obtain the desired microstructure and performance. Heat treatment can significantly improve its microstructure and mechanical properties, enhancing the performance and reliability of the casting. In some cases, the faster the cooling rate of the material, the better the material performance.

[0003] In the related art, the Chinese invention patent with announcement number CN116179823A discloses aluminum alloy casting heat treatment equipment, which integrates heating and cooling and is arranged in a box body. A transportation device is fixedly connected to the left side of the box body, and a material box is provided above the transportation device. A cooling pool is provided at the lower part of the box body, a moving frame is provided in the middle of the box body, a heating box is provided above the box body, and a transmission mechanism is provided on the top of the box body. The second motor in the transmission mechanism drives the driving gear through the second driving shaft, and the driving gear drives the gear bar to slide. The bottom of the gear bar is fixedly connected to the moving frame through a connecting block. The aluminum alloy casting is placed in the material box, and the material box slides into the moving frame. The second motor rotates forward to move the moving frame up to the heating box for heat treatment. After the heat treatment is completed, the second motor reverses to move the moving frame quickly downward to the cooling pool.

[0004] With respect to the above-mentioned related technologies, the heating zone and the cooling zone in the box are always in a connected state. During the processing, the temperature difference between the heating zone and the cooling zone is large. The high-temperature hot air in the heating zone will diffuse into the cooling zone, causing the temperature of the coolant in the cooling zone to increase, thereby reducing the cooling efficiency in the cooling pool; at the same time, the coolant in the cooling zone forms vapor under the action of the temperature of the heating zone and diffuses to the heating zone, which may cause the aluminum alloy casting to be subjected to uneven thermal stress, thereby affecting the quality of the casting. Summary of the Invention

[0005] In order to reduce the impact of cold and hot air flows on castings, thereby improving the quality of casting processing, the present application provides a heat treatment equipment for aluminum alloy castings.

[0006] The present application provides a heat treatment equipment for aluminum alloy castings adopts the following technical solution: A heat treatment equipment for aluminum alloy castings includes a box body, an input port and an output port are respectively provided on both sides of the box body, a partition plate is provided in the box body, the partition plate divides the box body into two cavities, namely a heating zone and a cooling zone, the input port is connected to the heating zone, a heating pipe for heating is provided in the heating zone, the heating zone is further divided into a low-temperature zone and a high-temperature zone, a bearing frame for carrying castings is provided in the heating zone, and a driving assembly for driving the bearing frame is provided on the box body; the output port is connected to the cooling zone, and the cooling zone is provided with a dual cooling system, the partition plate is provided with a conveying port, a transport column is rotatably provided on the partition plate, a placement groove for placing castings is provided in the transport column, a first baffle is slidably provided on the top of the placement groove, and a second baffle is rotatably provided at the bottom of the placement groove, a switching mechanism for driving the first baffle and the second baffle to open and close respectively is provided on the transport column, the transport column is slidably connected to the inner wall of the conveying port, and a conveyor belt for transportation is provided at the outside of the input port and the output port.

[0007] By adopting the above technical solution, the casting enters the carrying frame through the conveyor belt at the input port, and the carrying frame moves into the low-temperature zone and the high-temperature zone under the action of the driving assembly to enter the heat treatment. After the heat treatment of the casting is completed, the carrying frame moves the casting to the placement slot in the transport column. Under the action of the switching mechanism, the first baffle opens and the casting enters the placement slot. Subsequently, the transport column rotates in the partition plate. When the casting is sent from the heating zone to the cooling zone, the second baffle opens and the casting enters the cooling zone. After the casting is cooled by double cooling, it is output from the output port and enters the next process. The setting of the partition plate and the transport column can effectively reduce the exchange of airflow between the heating zone and the cooling zone. The first baffle and the second baffle strengthen the obstruction of the airflow between the two zones, thereby reducing the effect of the exchange of hot and cold airflows on the heat treatment of the casting, thereby improving the quality of casting processing.

[0008] Preferably, two ends of the carrying frame are respectively provided with through holes, and the other side walls are provided with multiple ventilation holes, the carrying frame is inclined, the through hole at the relatively higher end abuts against the box body and is connected with the input port, and the through hole at the relatively lower end is located above the placement slot; a rotation groove is provided on the inner wall of the carrying frame, and a first rotating rod, a first rotating plate and a second rotating plate are rotatably arranged in the rotation groove, the first rotating plate and the second rotating plate are fixedly sleeved on the first rotating rod, and an obtuse angle is formed between the first rotating plate and the second rotating plate, one end of the first rotating rod passes through the carrying frame and is fixedly sleeved with a worm gear, a worm for driving the worm gear is provided on the box body, an end of the worm gear away from the worm gear is fixedly connected to a telescopic rod, and an end of the telescopic rod away from the worm gear passes through the top of the box body, and a first motor for driving the telescopic rod to rotate is provided on the box body.

[0009] By adopting the above technical solution, the vents on the supporting frame can promote air circulation in the furnace, so that the supporting frame and the casting are heated more evenly and the thermal stress difference is reduced; the inclined setting of the supporting frame is conducive to the entry and exit of the casting. When the casting enters the supporting frame from the input port, the second rotating plate is flush with the inner wall of the supporting frame, the first rotating protrudes and is inclined to the second rotating plate. When the casting moves to the first rotating plate, it is abutted and restricted by the first rotating plate, thereby preventing the casting from slipping out of the supporting frame. After the heat treatment is completed, when one end of the supporting frame abuts and connects to the placement slot, the first motor starts to drive the worm gear to start, thereby causing the first rotating rod to rotate, and the first rotating rod rotates to drive the first rotating plate and the second rotating plate to rotate together. The first rotating plate rotates until it is flush with the inner wall of the supporting frame, and the second rotating plate rotates toward the direction of the first rotating plate and pushes the casting to move downward along the inclined direction of the supporting frame into the placement slot, and then the first motor reverses, thereby resetting the first rotating plate and the second rotating plate to wait for the next casting to enter.

[0010] Preferably, two placement slots are provided, which are respectively located at opposite positions on the transport column; a sliding slot for the first baffle to slide is provided in the transport column; a second motor is provided on the box body; a second rotating rod is fixedly connected to the second motor; the second rotating rod passes through and is fixedly connected to the center of the transport column; a coil spring is provided on the second rotating rod; one end of the coil spring is fixedly connected to the first baffle; The switch mechanism includes a connecting block, a resist block, a resist block and a release block, the connecting block is fixedly connected to the partition plate, the resist block is fixedly connected to the connecting block, a storage groove is provided on the first baffle, a first spring is provided in the storage groove, the resist block is slidably connected in the storage groove, the two ends of the first spring are respectively fixedly connected to the resist block and the inner wall of the storage groove, the resist block abuts against the resist block, the release block is fixedly connected to the inner wall of the placement groove, a first inclined surface is provided on the resist block, and the release block abuts against the first inclined surface; the connecting block is also fixedly connected to a pressing block, a second inclined surface is provided on the pressing block, and the second inclined surface abuts against the resist block; the switch mechanism also includes a switch assembly that drives the second baffle to rotate.

[0011] When the lifting block is lifted up, the lifting block is in the state of being lifted up, and the lifting block is in the state of being lifted up, so that the lifting block can be lifted up and the lifting block can be lifted up.

[0012] Preferably, the switch assembly includes a magnet, a third rotating rod, and a torsion spring. The third rotating rod is fixedly connected to the inner wall of the placement slot, the second baffle is rotatably sleeved on the third rotating rod, and the torsion spring is fixedly sleeved on the third rotating rod. The torsion arms at both ends of the torsion spring are respectively fixedly connected to the second baffle and the inner wall of the placement slot, the magnet is fixedly connected to the partition plate, and the second baffle is magnetic.

[0013] By adopting the above technical solution, when the placement slot rotates to the cooling zone, the second baffle gradually approaches the magnet, and the magnetic force on the second baffle gradually increases. When the magnetic force overcomes the torsion force of the torsion spring, the second baffle rotates toward the magnet. At this time, the bottom of the placement slot opens and gradually enters the cooling slot from the bottom of the transport column.

[0014] Preferably, the dual cooling system includes cooling nozzles and a cooling pool. The cooling nozzles are provided in multiple groups and are respectively installed on the inner wall of the cooling zone. A conveyor belt is provided in the cooling zone. One end of the conveyor belt is located below the transport column, and the other end of the conveyor belt is connected to the output port. The conveyor belt passes through the cooling pool.

[0015] By adopting the above technical solution, when the casting falls from the placement trough to the conveyor belt, the casting is driven by the conveyor belt to move in the cooling zone, first undergoes preliminary cooling by the cooling nozzle, then enters the cooling pool to enhance the cooling effect, and then is transported out of the box from the output port.

[0016] Preferably, a cooling box is provided outside the box body, and the cooling box is connected to the cooling pool through a pipeline and a driving pump.

[0017] By adopting the above technical solution, the cooling box can circulate and cool the coolant in the cooling pool to prevent the coolant from rising due to the temperature of the casting.

[0018] Preferably, a telescopic groove is provided on the first baffle, a telescopic plate slides in the telescopic groove, the telescopic plate is flush with the upper surface of the transport column, a plurality of second springs are provided in the telescopic groove, the two ends of the second springs are respectively fixedly connected to the telescopic plate and the inner wall of the telescopic groove, a third inclined surface is provided on the telescopic plate, and the third inclined surface abuts against the side wall of the sliding groove.

[0019] By adopting the above technical solution, when the top of the placement slot is opened, the third inclined surface abuts against the inner wall of the sliding slot to push the telescopic plate to compress the second spring and be in the sliding slot. When the first baffle seals the placement slot, the telescopic plate is flush with the top of the transport column under the action of the second spring and passes through the conveying port, thereby reducing the possibility of airflow exchange between the heating zone and the cooling zone when the conveying port passes through the placement slot.

[0020] Preferably, the driving assembly includes a third motor, a gear and a rack. The third motor is fixedly mounted on the box body. The gear is fixedly sleeved on the rotating shaft of the third motor. The rack is passed through the box body and fixedly connected to the supporting frame. The gear and the rack are meshed.

[0021] By adopting the above technical solution, when the casting enters the supporting frame, the third motor is started, and the supporting frame is driven by the gear and rack to rise to the low-temperature zone and then to the high-temperature zone for heat treatment. When the casting is processed, under the action of the third motor, gear and rack, the supporting frame descends with the casting to the transport column to transfer the casting.

[0022] Preferably, the inner wall of the heating zone and the partition plate are both provided with a high-efficiency thermal insulation layer, and the high-efficiency thermal insulation layer includes a nano-microporous insulation layer, a ceramic fiber insulation layer and a rock wool insulation layer from the inside to the outside.

[0023] By adopting the above technical solution, the nano-porous insulation layer has an extremely low thermal conductivity coefficient, which can effectively prevent heat from being transferred through radiation and convection; the ceramic fiber insulation layer has good high-temperature resistance and thermal insulation properties, and can withstand high-temperature environments; the rock wool insulation layer further enhances the thermal insulation effect, while also playing a certain buffering role to protect the inner wall of the heat treatment chamber.

[0024] In summary, this application includes at least one of the following beneficial technical effects: The casting enters the carrying frame through the conveyor belt at the input port, and the carrying frame moves into the low-temperature zone and the high-temperature zone under the action of the driving assembly to enter the heat treatment. After the heat treatment of the casting is completed, the carrying frame moves the casting to the placement slot in the transport column. Under the action of the switch mechanism, the first shutter opens and the casting enters the placement slot. Subsequently, the transport column rotates in the partition plate. When the casting is sent from the heating zone to the cooling zone, the second shutter opens and the casting enters the cooling zone. After the casting is cooled by double cooling, it is output from the output port and enters the next process. The arrangement of the partition plate and the transport column can effectively reduce the exchange of airflow between the heating zone and the cooling zone. The first shutter and the second shutter strengthen the obstruction of the airflow between the two zones, thereby reducing the influence of the exchange of hot and cold airflow on the heat treatment effect of the casting, thereby improving the quality of casting processing; When the top of the placement slot is opened, the third inclined surface abuts against the inner wall of the sliding slot, pushing the telescopic plate to compress the second spring and stay in the sliding slot. When the first shield seals the placement slot, the telescopic plate is flush with the top of the transport column under the action of the second spring and passes through the delivery port, thereby reducing the possibility of airflow exchange between the heating zone and the cooling zone when the delivery port passes through the placement slot; The nanoporous insulation layer has an extremely low thermal conductivity coefficient and can effectively prevent heat from being transferred through radiation and convection; the ceramic fiber insulation layer has good high temperature resistance and thermal insulation properties and can withstand high temperature environments; the rock wool insulation layer further enhances the thermal insulation effect and at the same time plays a certain buffering role to protect the inner wall of the heat treatment chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of heat treatment equipment for aluminum alloy castings.

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the box body in the embodiment of the present application.

[0027] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0029] Figure 5 It is a structural diagram of the highlight release block in an embodiment of the present application.

[0030] Figure 6 It is a schematic structural diagram of the protruding pressing block in an embodiment of the present application.

[0031] Figure 7 It is a schematic structural diagram of the protruding first baffle in an embodiment of the present application.

[0032] Figure 8It is a schematic structural diagram of the protruding second baffle in an embodiment of the present application.

[0033] Description of reference numerals: 1. Box; 2. Input port; 3. Output port; 4. Partition plate; 5. Heating zone; 6. Cooling zone; 7. Heating tube; 8. Carrying frame; 9. Drive assembly; 10. Dual cooling system; 11. Delivery port; 12. Transport column; 13. Placement slot; 14. First baffle; 15. Second baffle; 16. Switch mechanism; 17. Conveyor belt; 18. Through hole; 19. Vent hole; 20. Rotation slot; 21. First rotating rod; 22. First rotating plate; 23. Second rotating plate; 24. Worm gear; 25. Worm; 26. Telescopic rod; 27. First motor; 28. Sliding slot; 29. Second motor; 30. Abutment block; 31 , connecting block; 32. Abutment block; 33. Release block; 34. Storage tank; 35. First spring; 36. First inclined plane; 37. Pressing block; 38. Second inclined plane; 39. Switch assembly; 40. Magnet; 41. Third rotating rod; 42. Torsion spring; 43. Cooling nozzle; 44. Cooling pool; 45. Conveyor belt; 46. Cooling box; 47. Telescopic slot; 48. Second spring; 49. Third inclined plane; 50. Third motor; 51. Gear; 52. Rack; 53. High-efficiency thermal insulation layer; 54. Nanoporous thermal insulation layer; 55. Ceramic fiber thermal insulation layer; 56. Rock wool thermal insulation layer; 57. Connecting frame; 58. Telescopic plate. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-8 This application is described in further detail.

[0035] The present application embodiment discloses a heat treatment device for aluminum alloy castings, such as Figure 1 and Figure 2 As shown, it includes a box body 1 and a cooling box 46. The cooling box 46 is located next to the box body 1. The side walls of the box body 1 on opposite sides are respectively provided with an input port 2 and an output port 3 in the horizontal direction. Conveyor belts 17 are provided at the input port 2 and the output port 3 outside the box body 1, respectively, for transporting the castings into the box body 1 and transporting them to the next level process after the heat treatment is completed. A partition plate 4 is provided inside the box body 1, and a transport column 12 is rotatably provided on the partition plate 4. The transport column 12 is provided with a placement groove 13 for placing the castings. The partition plate 4 divides the box body 1 into two cavities, namely the heating zone 5 and the cooling zone 6. The input port 2 is connected to the heating zone 5, and the output port 3 is connected to the cooling zone 6. A heating pipe 7 for heating is provided in the heating zone 5. The heating zone 5 is further divided into a low-temperature zone and a high-temperature zone. The low-temperature zone is below the high-temperature zone. The staff can select different zones for heat treatment according to the requirements of the castings. At the same time, during heat treatment, the castings first pass through the low-temperature zone before entering the high-temperature zone, which can preheat the castings and improve the processing quality.

[0036] like Figure 2 and Figure 3 As shown, a support frame 8 for supporting castings is movably provided in the heating zone 5, and a driving assembly 9 for driving the support frame 8 is provided on the housing 1. A through-hole 18 is provided at each end of the support frame 8, and a plurality of ventilation holes 19 are provided on the other side walls. Castings enter and exit the through-holes 18 at both ends of the support frame 8. The ventilation holes 19 promote air circulation in the furnace, allowing the support frame 8 and the castings to be heated more evenly and reducing thermal stress differences. The support frame 8 is tilted, with the end near the partition plate 4 lower than the end near the input port 2. The through-holes 18 at both ends of the support frame 8 are aligned with the input port 2 and the placement slot 13 on the transport column 12, respectively, to facilitate the entry of the castings into the support frame 8 and the placement slot 13. Drive assembly 9 includes a third motor 50, a gear 51, and a rack 52. The third motor 50 is fixedly mounted on the top of the housing 1. The gear 51 is fixedly mounted on the shaft of the third motor 50. The rack 52 extends vertically through the housing 1 and is fixedly connected to the upper surface of the support frame 8. The gear 51 and rack 52 mesh together. The third motor 50, gear 51, and rack 52 drive the support frame 8 vertically. The tilted configuration of the support frame 8 facilitates the movement of the casting.

[0037] like Figure 2 and Figure 3 As shown, a rotating groove 20 is provided on the inner wall of the bottom of the supporting frame 8, and a first rotating rod 21, a first rotating plate 22 and a second rotating plate 23 are rotatably arranged in the rotating groove 20. The first rotating plate 22 and the second rotating rod are integrally formed and there is an obtuse angle between the first rotating plate 22 and the second rotating plate 23. Both ends of the first rotating rod 21 rotate on the inner wall of the rotating groove 20, the first rotating rod 21 passes through and is fixedly connected to the connection between the first rotating plate 22 and the second rotating plate 23, one end of the first rotating rod 21 passes through the supporting frame 8 and is fixedly sleeved with a worm gear 24, a connecting frame 57 is fixedly welded on the outer wall of the supporting frame 8, and a worm 25 for driving the worm gear 24 to rotate is provided in the vertical direction of the box body 1. The worm 25 passes through the connecting frame 57, and a telescopic rod 26 is fixedly welded to the far top of the worm 25. The top of the telescopic rod 26 passes through the top of the box body 1, and a first motor 27 for driving the telescopic rod 26 to rotate is provided on the box body 1.

[0038] like Figure 2 and Figure 4 As shown, the partition plate 4 and the inner wall of the heating zone 5 are provided with a high-efficiency thermal insulation layer 53, which is composed of a nanoporous thermal insulation layer 54, a ceramic fiber thermal insulation layer 55 and a rock wool thermal insulation layer 56 from the inside to the outside. The nanoporous thermal insulation layer 54 has an extremely low thermal conductivity coefficient and can effectively prevent heat from being transferred through radiation and convection; the ceramic fiber thermal insulation layer 55 has good high temperature resistance and thermal insulation performance and can withstand high temperature environment; the rock wool thermal insulation layer 56 further enhances the thermal insulation effect and plays a certain buffering role to protect the inner wall of the heat treatment chamber.

[0039] like Figure 1 and Figure 2 As shown, the cooling zone 6 is equipped with a dual cooling system 10, including cooling nozzles 43 and a cooling pool 44. Cooling liquid is provided in the cooling pool 44, and a cooling box 46 is connected to the cooling pool 44 by a pipeline. The cooling box 46 can circulate and cool the cooling liquid in the cooling pool 44. Multiple groups of cooling nozzles 43 are provided, each mounted on the inner wall of the cooling zone 6, and can provide initial cooling for the casting. A conveyor belt 45 is provided in the cooling zone 6. The conveyor belt 45 is arranged in multiple sections. The end of the conveyor belt 45 near the partition plate 4 is located below the transport column 12, and the other end of the conveyor belt 45 is connected to the output port 3. The middle portion of the conveyor belt 45 is at the lowest end and is located in the cooling pool 44.

[0040] like Figure 2 and Figure 5 As shown, the transport column 12 is cylindrical, with its axis extending vertically. A horizontal conveying opening 11 for the transport column 12 to rotate is formed on the partition plate 4. A second motor 29 is fixedly mounted on the housing 1. A second rotating rod is welded to the second motor 29. The second rotating rod passes through the center of the transport column 12 and is welded to the transport column 12. A coil spring is fixedly sleeved around the second rotating rod, one end of which is fixedly connected to the first baffle 14. Two placement slots 13 are provided, facing each other. Each slot 13 extends vertically through the housing, with a first baffle 14 and a second baffle 15 provided at the top and bottom, respectively, for sealing. Both the first baffle 14 and the second baffle 15 are arc-shaped. A sliding slot 28 is provided within the transport column 12 for the first baffle 14 to slide. The sliding slot 28 has an arc-shaped cross-section, and a switch mechanism 16 is provided on the transport column 12 to respectively activate and deactivate the first and second baffles 14 and 15.

[0041] like Figure 5 and Figure 6 As shown, combined with Figure 7 As shown, the switch mechanism 16 includes a connecting block 31, a stop block 32, an abutting block 30, and a release block 33. The connecting block 31 is cylindrical and fixedly penetrates and is welded to the partition plate 4 and is located above the transport column 12. The diameter of the connecting block 31 is smaller than the diameter of the transport column 12. The first shield 14 has a storage groove 34 defined in the vertical direction. A first spring 35 is vertically disposed within the storage groove 34. The two ends of the first spring 35 are respectively fixedly welded to the abutting block 30 and the inner wall of the storage groove 34. The abutting block 30 is vertically connected to the storage groove 34. The stop block 32 is fixedly welded to the lower surface of the connecting block 31. The stop block 32 is in the shape of a rectangular parallelepiped and abuts against the abutting block 30. When the transport column 12 rotates, the abutment block 32 abuts against the abutment block 30, causing the abutment block 30 to rotate into the sliding groove 28 with the first shield 14, thereby opening the top of the placement groove 13 and waiting for the casting to enter the placement groove 13.

[0042] like Figure 5 and Figure 6 As shown, combined with Figure 7 As shown, the release block 33 is fixedly welded to the inner wall of the placement slot 13 near the sliding slot 28. The abutment block 30 is provided with a first inclined surface 36, and the release block 33 abuts the first inclined surface 36. The first shield plate 14 is provided with a telescopic slot 47, and a telescopic plate 58 is vertically slidably connected to the telescopic slot 47. The abutment block 30 is inserted into the telescopic plate 58. The telescopic slot 47 is provided with a plurality of second springs 48 in the vertical direction. The ends of the second springs 48 are respectively fixedly welded to the lower surface of the telescopic plate 58 and the inner wall of the telescopic slot 47. A third inclined surface 49 is provided on the telescopic plate 58 at one end close to the release plate, and the release block 33 abuts against the third inclined surface 49. When the first baffle 14 slides into the sliding groove 28, the telescopic plate 58 is compressed downward into the telescopic groove 47 under the action of the release block 33 and the inner wall of the sliding groove 28. When the first baffle 14 moves out of the sliding groove 28, the telescopic plate 58 is reset under the action of the second spring 48 and is flush with the upper surface of the transport column 12, thereby reducing the possibility of the first baffle 14 not being in close contact with the inner wall of the conveying port 11 when passing through the conveying port 11, causing air flow exchange between the heating zone 5 and the cooling zone 6. The telescopic groove 47 avoids the storage groove 34 and is not connected to the storage groove 34. Two pressing blocks 37 are fixedly welded to the lower surface of the connecting block 31. The two pressing blocks 37 are respectively located in the heating zone 5 and the cooling zone 6 and along the rotation direction of the transport column 12 and close to the conveying port 11. The two pressing blocks 37 are on a diameter of the transport column 12. The lower end surface of the pressing block 37 is slidably connected to the upper surface of the transport column 12. A second inclined surface 38 is provided on the pressing block 37, and the second inclined surface 38 abuts against the abutting block 30. During the rotation of the transport column 12, the top of the abutment block 30 is higher than the upper surface of the transport column 12. When the abutment block 30 approaches the delivery port 11, the abutment block 30 first abuts against the third inclined surface 49 on the pressure block 37. Under the pressure of the third inclined surface 49, the abutment block 30 compresses the first spring 35 in the vertical direction and moves to be flush with the upper surface of the transport column 12, thereby facilitating the abutment block 30 to pass through the delivery port 11 and avoiding too many openings on the partition plate 4, thereby increasing the possibility of airflow exchange between the two areas.

[0043] like Figure 2 and Figure 8As shown, the switch mechanism 16 further includes a switch assembly 39 that drives the rotation of the second shutter 15. The switch assembly 39 includes a magnet 40, a third rotating rod 41, and two torsion springs 42. The third rotating rod 41 is fixedly welded to the inner wall of the placement slot 13. The second shutter 15 is rotatably mounted on the third rotating rod 41. The two torsion springs 42 are respectively mounted on the ends of the third rotating rod 41. The torsion arms of the torsion springs 42 are respectively fixedly welded to the second shutter 15 and the inner wall of the placement slot 13. The magnet 40 is fixedly connected to the partition plate 4. The second shutter 15 is magnetic. When the placement slot 13 holding the castings rotates to the cooling zone 6, the second shutter 15 gradually approaches the magnet 40, and the magnetic force it experiences gradually increases, thereby overcoming the torsion force of the torsion springs 42 and rotating, thereby opening the placement slot 13 and allowing the castings to fall from the bottom onto the conveyor belt 45.

[0044] The working principle of the embodiment of the present application is as follows: the casting enters the carrier frame 8 via the conveyor belt 17 at the input port 2. The inclined configuration of the carrier frame 8 facilitates the entry of the casting. Once the casting enters the carrier frame 8, the abutment effect of the first rotation restrains the casting's position, thereby reducing the possibility of the casting slipping out of the carrier frame 8. Subsequently, the carrier frame 8 is moved by the drive assembly 9 into the low-temperature zone and the high-temperature zone for heat treatment. After the heat treatment of the casting is completed, the carrying frame 8 moves the casting to the starting position, and the two ends of the carrying frame 8 are respectively connected to the placement slot 13 in the input and transport column 12. At this time, the first motor 27 is started, and the first motor 27 starts to drive the worm 25 to rotate through the telescopic rod 26. The rotation of the worm 25 drives the worm gear 24 to rotate, thereby driving the first rotating rod 21 to rotate. The rotation of the first rotating rod 21 causes the first rotating plate 22 to rotate into the rotating slot and flush with the inner wall of the bottom of the carrying frame 8. The second rotating plate 23 rotates toward the first rotating plate 22, thereby driving the casting on the second rotating plate 23 to slide into the placement slot 13. After the casting moves away from the first rotating plate 22, the first motor 27 is reversed, causing the second rotating plate 23 to rotate into the rotating slot 20 and flush with the inner surface of the carrying frame 8. The first rotating plate 22 is tilted higher than the inner surface of the carrying frame 8, waiting for the next casting to enter; After the casting enters the placement slot 13, the second motor 29 starts to rotate the transport column 12. The strong rotation of the transport column 12 causes the abutment block 30 to move closer to the release block 33. The release block 33 abuts the first inclined surface 36 on the abutment block 30, pushing the abutment block 30 to compress the first spring 35 and move downward away from the abutment block 32. At this time, the first shield 14 moves out of the sliding slot 28 under the action of the coil spring and seals the placement slot 13. When the abutment block 30 follows the transport column 12 and rotates to the delivery port 11, it abuts the second inclined surface 38 on the pressure block 37. Under the action of the second inclined surface 38, the abutment block 30 is pushed to compress the first spring 35 and move downward, thereby preventing the abutment block 30 from abutting the partition plate 4. When the placement slot 13 rotates to the cooling zone 6, the second baffle 15 gradually approaches the magnet 40, and the magnetic force on the second baffle 15 gradually increases. When the magnetic force overcomes the torsion force of the torsion spring 42, the second baffle 15 rotates toward the magnet 40. At this time, the bottom of the placement slot 13 opens, and the casting falls from the bottom of the transport column 12 to the conveyor belt 45, and then moves to the cooling pool 44 under the action of the conveyor belt 45 and leaves the box 1 from the output port 3.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A heat treatment device for aluminum alloy castings, comprising a box (1), wherein an input port (2) and an output port (3) are respectively provided on both sides of the box (1), and characterized in that: A partition plate (4) is provided in the box body (1), and the partition plate (4) divides the box body (1) into two cavities, namely a heating zone (5) and a cooling zone (6). The input port (2) is connected to the heating zone (5), and a heating pipe (7) for heating is provided in the heating zone (5). The heating zone (5) is further divided into a low-temperature zone and a high-temperature zone. A bearing frame (8) for bearing the casting is provided in the heating zone (5), and a driving component (9) for driving the bearing frame (8) is provided on the box body (1); the output port (3) is connected to the cooling zone (6), and the cooling zone (6) is provided with a dual cooling system (10). (4) A conveying port (11) is provided, a conveying column (12) is rotatably provided on the partition plate (4), a placement groove (13) for placing castings is provided in the conveying column (12), a first baffle (14) is slidably provided on the top of the placement groove (13), a second baffle (15) is rotatably provided on the bottom of the placement groove (13), a switch mechanism (16) for driving the first baffle (14) and the second baffle (15) to switch respectively is provided on the conveying column (12), the conveying column (12) is slidably connected to the inner wall of the conveying port (11), and a conveyor belt (17) for transportation is provided on the outer sides of the input port (2) and the output port (3).

2. The heat treatment equipment for aluminum alloy castings according to claim 1, characterized in that: The two ends of the carrying frame (8) are respectively provided with through holes (18), and the other side walls are provided with a plurality of ventilation holes (19). The carrying frame (8) is tilted, and the through hole (18) at the relatively higher end abuts against the inside of the box body (1) and is connected to the input port (2), and the through hole (18) at the relatively lower end is located above the placement groove (13); a rotation groove (20) is provided on the inner wall of the carrying frame (8), and a first rotating rod (21), a first rotating plate (22) and a second rotating plate (23) are rotatably provided in the rotating groove (20), and the first rotating plate (22) and the second rotating plate (23) are both fixedly sleeved. On the first rotating rod (21), an obtuse angle is formed between the first rotating plate (22) and the second rotating plate (23), one end of the first rotating rod (21) passes through the supporting frame (8) and is fixedly sleeved with a worm gear (24), a worm (25) for driving the worm gear (24) is provided on the box body (1), one end of the worm (25) away from the worm gear (24) is fixedly connected to a telescopic rod (26), one end of the telescopic rod (26) away from the worm (25) passes through the top of the box body (1), and a first motor (27) for driving the telescopic rod (26) to rotate is provided on the box body (1).

3. The heat treatment equipment for aluminum alloy castings according to claim 1, characterized in that: The placement slots (13) are provided with two, which are respectively located at relative positions on the transport column (12); a sliding slot (28) for the first shielding plate (14) to slide is provided in the transport column (12); a second motor (29) is provided on the box body (1); a second rotating rod is fixedly connected to the second motor (29); the second rotating rod (30) is passed through and fixedly connected to the center of the transport column (12); a coil spring is provided on the second rotating rod sleeve, and one end of the coil spring is fixedly connected to the first shielding plate (14); The switch mechanism (16) comprises a connecting block (31), a resisting block (32), an abutting block (30) and a releasing block (33); the connecting block (31) is fixedly connected to the partition plate (4); the resisting block (32) is fixedly connected to the connecting block (31); a storage groove (34) is provided on the first shielding plate (14); a first spring (35) is provided in the storage groove (34); the abutting block (30) is slidably connected in the storage groove (34); two ends of the first spring (35) are respectively fixedly connected to the abutting block (30) and the storage groove ( 34) inner wall, the abutting block (32) abuts against the abutting block (30), the releasing block (33) is fixedly connected to the inner wall of the placement groove (13), the abutting block is provided with a first inclined surface (36), and the releasing block (33) abuts against the first inclined surface (36); the connecting block (31) is also fixedly connected to a pressing block (37), the pressing block (37) is provided with a second inclined surface (38), and the second inclined surface (38) abuts against the abutting block (30); the switch mechanism (16) further includes a switch assembly (39) for driving the second baffle (15) to rotate.

4. The heat treatment equipment for aluminum alloy castings according to claim 3, characterized in that: The switch assembly (39) includes a magnet (40), a third rotating rod (41), and a torsion spring (42). The third rotating rod (41) is fixedly connected to the inner wall of the placement groove (13). The second baffle (15) is rotatably sleeved on the third rotating rod (41). The torsion spring (42) is fixedly sleeved on the third rotating rod (41). The torsion arms at both ends of the torsion spring (42) are respectively fixedly connected to the second baffle (15) and the inner wall of the placement groove (13). The magnet (40) is fixedly connected to the partition plate (4). The second baffle (15) is magnetic.

5. The heat treatment equipment for aluminum alloy castings according to claim 1, characterized in that: The dual cooling system (10) includes a cooling nozzle (43) and a cooling pool (44). The cooling nozzles (43) are provided in multiple groups and are respectively installed on the inner wall of the cooling zone (6). A conveyor belt (45) is provided in the cooling zone (6). One end of the conveyor belt (45) is located below the transport column (12), and the other end of the conveyor belt (45) is connected to the output port (3). The conveyor belt (45) passes through the cooling pool (44).

6. The heat treatment equipment for aluminum alloy castings according to claim 5, characterized in that: A cooling box (46) is provided outside the box body (1), and the cooling box (46) is connected to the cooling pool (44) through a pipeline and a driving pump.

7. The heat treatment equipment for aluminum alloy castings according to claim 3, characterized in that: A telescopic groove (47) is provided on the first shielding plate (14), a telescopic plate (58) is slidably arranged in the telescopic groove (47), the telescopic plate (58) is flush with the upper surface of the transport column (12), a plurality of second springs (48) are provided in the telescopic groove (47), the two ends of the second springs (48) are respectively fixedly connected to the telescopic plate (58) and the inner wall of the telescopic groove (47), a third inclined surface (49) is provided on the telescopic plate (58), and the third inclined surface (49) abuts against the release block (33).

8. The heat treatment equipment for aluminum alloy castings according to claim 1, characterized in that: The driving assembly (9) includes a third motor (50), a gear (51) and a rack (52); the third motor (50) is fixedly mounted on the housing (1); the gear (51) is fixedly sleeved on the rotating shaft of the third motor (50); the rack (52) is passed through the housing (1) and fixedly connected to the supporting frame (8); the gear (51) and the rack (52) are meshed with each other.

9. The heat treatment equipment for aluminum alloy castings according to claim 1, characterized in that: The inner wall of the heating zone (5) and the partition plate (4) are both provided with a high-efficiency heat-insulating layer (53), and the high-efficiency heat-insulating layer (53) includes, from the outside to the heating zone (5), a nano-microporous heat-insulating layer (54), a ceramic fiber heat-insulating layer (55) and a rock wool heat-insulating layer (56).

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