A transport device for heat treating an aluminum alloy article

Abstract

The application discloses a kind of aluminium alloy product heat treatment with transport device, belong to mechanical manufacturing field, including protective box, the inner bottom wall of protective box is fixedly connected with two support plates, the upper surface of each support plate is all set up long slot, the side face of two support plates is all installed with first motor, the output end of each first motor is all connected with rotating shaft after penetrating support plate, the outer surface of each rotating shaft is all fixedly connected with first gear, the material bottom is formed by the clamping of fixed plate driven by third motor screw rod in the application, simultaneously, the movable plate is pushed by second hydraulic rod, so that the material side is positioned by fixed rod, and the material top is pressed tightly by the lower pressing plate cooperated with return spring pushed by third hydraulic rod, three layers of collaborative fixing structure are used to realize the full-wrapping type fixing of material from bottom to top, effectively solve the material shaking and deviation caused by lack of stable clamping of traditional device.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing technology, and in particular to a transport device for heat treatment of aluminum alloy products. Background Technology

[0002] The transport device for heat treatment of aluminum alloy products is a specialized transfer equipment designed specifically for the entire heat treatment process of aluminum alloy products. It enables precise transport of products between various stages such as heating, holding, and cooling. Its core function is to solve the key problems of safe, efficient, and damage-free transport of aluminum alloy products in heat treatment scenarios, which require high temperatures, high cleanliness, and specific processes. It avoids safety risks such as burns caused by manual handling and prevents heat treatment quality deviations due to heat loss during transport.

[0003] Currently, most transport devices for heat treatment of aluminum alloy products lack clamping functions, which cannot ensure that the aluminum alloy products remain stable during transportation. They are prone to shaking and displacement, which can affect the heat treatment quality or cause safety hazards. In addition, the lack of auxiliary unloading structure makes unloading operations very difficult and reduces production efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of existing transport devices for heat treatment of aluminum alloy products, which lack clamping function, making it difficult to stably position aluminum alloy products, and also lack auxiliary unloading structure, making unloading difficult. Therefore, this invention proposes a transport device for heat treatment of aluminum alloy products.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A transport device for heat treatment of aluminum alloy products includes a protective box. Two support plates are fixedly connected to the inner bottom wall of the protective box. An elongated groove is formed on the upper surface of each support plate. A first motor is installed on the side of the two support plates that are far apart from each other. The output end of each first motor passes through the support plate and is connected to a rotating shaft. A first gear is fixedly connected to the outer surface of each rotating shaft. A connecting rod is rotatably connected inside each elongated groove. A second gear is fixedly connected to the outer surface of each connecting rod. Each second gear is connected to the corresponding first gear through a chain drive.

[0006] Preferably, a connecting block is fixedly connected to the outer surface of each chain, and a locking block is rotatably connected inside each connecting block via a round rod. A second motor is installed on the side of each of the two connecting blocks that are far apart from each other. The output end of each second motor passes through the connecting block and is connected to one end of the round rod. A blocking block is fixedly connected to the outer surface of each chain.

[0007] Preferably, a limiting plate is fixedly connected to the side of each of the two support plates that are far apart from each other, and a barrier plate is connected to the upper surface of the two support plates.

[0008] Preferably, the upper surfaces of the two support plates are slidably connected to a connecting plate, the bottom surface of the connecting plate has two first mounting grooves, each of the first mounting grooves has a roller assembly installed inside, and the upper surface of the connecting plate has two locking slots, each of the locking slots engaging with the outer surface of the locking block.

[0009] Preferably, a fixed base plate is fixedly connected to the upper surface of the connecting plate, and a plurality of limiting grooves are formed on the upper surface of the fixed base plate. A threaded rod is rotatably connected inside each limiting groove. A plurality of third motors are installed on the opposite sides of the fixed base plate. The output end of each third motor passes through the fixed base plate and is connected to one end of the threaded rod. A movable block is threadedly connected to the outer surface of each threaded rod, and a fixed plate is fixedly connected to the upper surface of each movable block.

[0010] Preferably, a first support column is fixedly connected to the bottom surface of the connecting plate, a second mounting groove is provided on the bottom surface of each first support column, two sliding grooves are provided on the inner wall of each second mounting groove, a connecting box is slidably connected inside the sliding grooves, a movable wheel is connected to the bottom surface of each connecting box, a first hydraulic rod is installed on the inner top wall of each second mounting groove, the output end of each first hydraulic rod is connected to the inner bottom wall of the connecting box, a first controller is installed on the outer surface of one of the first support columns, and a fixed column is connected to the side of each group of first support columns that are close to each other.

[0011] Preferably, an insulated box is fixedly connected to the inner bottom wall of the protective box, a first door panel is hinged to the front of the insulated box, a plurality of second hydraulic rods are installed on the inner wall of the protective box, and a movable plate is fixedly connected to the output end of each set of second hydraulic rods after passing through the insulated box. A plurality of third mounting slots are opened on the side of the two movable plates that are close to each other. A buffer spring is connected inside each of the third mounting slots, and a fixed rod is connected to the end of each buffer spring away from the movable plate.

[0012] Preferably, a third hydraulic rod is installed on the inner top wall of the protective box. The output end of the third hydraulic rod passes through the insulation box and is connected to a push plate. Multiple sliding rods are connected to the bottom surface of the push plate. A fixing block is fixedly connected to the bottom end of each sliding rod. A lower pressure plate is slidably connected to the outer surfaces of the multiple sliding rods. Multiple return springs are connected to the upper surface of the lower pressure plate. The end of each return spring away from the lower pressure plate is connected to the bottom surface of the push plate.

[0013] Preferably, a second door panel is hinged to the front of the protective box, and a second controller is installed on the outer surface of the second door panel.

[0014] Preferably, the bottom surface of the protective box is provided with multiple circular grooves, and a fourth hydraulic rod is installed on the inner top wall of each circular groove. The output end of each fourth hydraulic rod is connected to a caster wheel.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The third motor drives the threaded rod to clamp the bottom of the material with the fixed plate. At the same time, the second hydraulic rod pushes the movable plate to limit the side of the material with the fixed rod. The third hydraulic rod pushes the lower pressure plate to press the top of the material with the help of the reset spring. The three-layer coordinated fixing structure realizes the full-wrap fixing of the material from bottom to top, effectively solving the problem of material shaking and displacement caused by the lack of stable clamping in traditional devices. 2. By using the first hydraulic rod, the connecting box is pushed down along the slide groove, so that the movable wheel touches the ground for support. This smoothly transforms the rigid support of the device on the connecting plate into rolling support, which can not only distribute the weight of the material and reduce support friction, but also create smooth conditions for the subsequent movement and unloading of the connecting plate, and reduce unloading resistance. 3. The second motor drives the locking block to rotate around the circular rod, so that it completely disengages from the slot on the bottom of the connecting plate, precisely releasing the locking and fixing relationship between the two, allowing the connecting plate to smoothly disengage from the limit position and have the freedom to move along the support plate. 4. The first motor drives the first gear to rotate, which is then transmitted to the second gear via a chain. The chain is driven to rotate cyclically along the gear meshing trajectory. The connecting block on the chain moves in the unloading direction, applying a smooth thrust to the end of the connecting plate, which drives the connecting plate and the material out. This effectively solves the problem of difficult unloading of heavy loads and the need for manual assistance in traditional transportation devices, and realizes mechanized and efficient unloading. Attached Figure Description

[0016] Figure 1 This is a right sectional view of a transport device for heat treatment of aluminum alloy products proposed in this invention; Figure 2 This is a front sectional view of a transport device for heat treatment of aluminum alloy products proposed in this invention; Figure 3 This is a schematic diagram of the chain structure in a transport device for heat treatment of aluminum alloy products proposed in this invention; Figure 4 This is a schematic diagram of the limiting groove in a transport device for heat treatment of aluminum alloy products proposed in this invention. Figure 5 This is a schematic diagram of the threaded rod in a transport device for heat treatment of aluminum alloy products proposed in this invention; Figure 6This is a schematic diagram of the chute structure in a transport device for heat treatment of aluminum alloy products proposed in this invention; Figure 7 This is a schematic diagram of the structure of the fixing rod in a transport device for heat treatment of aluminum alloy products proposed in this invention; Figure 8 This is a schematic diagram of the lower pressure plate in a transport device for heat treatment of aluminum alloy products proposed in this invention; Figure 9 This is a schematic diagram of the universal wheel in a transport device for heat treatment of aluminum alloy products proposed in this invention.

[0017] In the diagram: 1. Protective box; 2. Support plate; 3. Long slot; 4. First motor; 5. Rotating shaft; 6. First gear; 7. Connecting rod; 8. Second gear; 9. Chain; 10. Connecting block; 11. Second motor; 12. Locking block; 13. Barrier block; 14. Limiting plate; 15. Barrier plate; 16. Connecting plate; 17. First mounting slot; 18. Roller assembly; 19. Locking slot; 20. Fixed base plate; 21. Third motor; 22. Threaded rod; 23. Movable block; 24. Fixed plate; 25. First support column; 26. Second mounting slot; 27. 1. Slide groove; 28. Connecting box; 29. ​​Movable wheel; 30. First hydraulic rod; 31. First controller; 32. Fixed column; 33. Second hydraulic rod; 34. Movable plate; 35. Third mounting groove; 36. Fixed rod; 37. Third hydraulic rod; 38. Push plate; 39. Slide rod; 40. Fixed block; 41. Lower pressure plate; 42. Return spring; 43. First door panel; 44. Second door panel; 45. Second controller; 46. Circular groove; 47. Fourth hydraulic rod; 48. Universal wheel; 49. Limit groove; 50. Buffer spring; 51. Insulation box. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Example, refer to Figure 1-9A conveying device for heat treatment of aluminum alloy products includes a protective box 1. Two support plates 2 are fixedly connected to the inner bottom wall of the protective box 1. Each support plate 2 has an elongated groove 3 on its upper surface. A first motor 4 is installed on the side of the two support plates 2 that are far apart from each other. The output end of each first motor 4 passes through the support plate 2 and is connected to a rotating shaft 5. A first gear 6 is fixedly connected to the outer surface of each rotating shaft 5, which can convert the power of the first motor 4 into the cyclic motion power of the chain 9. A connecting rod 7 is rotatably connected inside each elongated groove 3. A second gear 8 is fixedly connected to the outer surface of each connecting rod 7. Each second gear 8 is connected to the corresponding first gear 6 through the chain 9. When running, it can drive the connecting block 10 to move synchronously, thereby pushing the connecting plate 16 out to realize the conveying of materials.

[0020] In this invention: a connecting block 10 is fixedly connected to the outer surface of each chain 9, and a locking block 12 is rotatably connected to the inside of each connecting block 10 through a round rod. In the initial state, it can be horizontally locked into the locking groove 19 to fix the relative position of the connecting plate 16 and the connecting block 10. After rotation, it can be disengaged from the locking groove 19 and the fixation is released. A second motor 11 is installed on the side of each connecting block 10 that is far away from each other. The output end of each second motor 11 passes through the connecting block 10 and is connected to one end of the round rod. A blocking block 13 is fixedly connected to the outer surface of each chain 9.

[0021] In this invention: Limiting plates 14 are fixedly connected to the opposite sides of the two support plates 2 to prevent the connecting plate 16 from shifting to the edge of the support plate 2 during the conveying process. The upper surfaces of the two support plates 2 are connected to a blocking plate 15 to limit the maximum travel of the connecting plate 16 and prevent the connecting plate 16 from moving out of the support plate 2.

[0022] In this invention: the upper surfaces of the two support plates 2 are slidably connected to a connecting plate 16. The bottom surface of the connecting plate 16 has two first mounting grooves 17 to provide installation space for the roller assembly 18. Each first mounting groove 17 is equipped with a roller assembly 18, which converts the sliding friction between the connecting plate 16 and the support plate 2 into rolling friction, greatly reducing the resistance when the connecting plate 16 moves, ensuring the smooth transport of the connecting plate 16, and protecting the surfaces of the support plate 2 and the connecting plate 16 from wear. The upper surface of the connecting plate 16 has two slots 19, and the interior of each slot 19 is engaged with the outer surface of the locking block 12.

[0023] In this invention: a fixed base plate 20 is fixedly connected to the upper surface of the connecting plate 16. The upper surface of the fixed base plate 20 is provided with multiple limiting grooves 49. Each limiting groove 49 is rotatably connected to a threaded rod 22, which can convert the rotational power of the third motor 21 into the linear movement power of the movable block 23. Multiple third motors 21 are installed on the opposite sides of the fixed base plate 20. The output end of each third motor 21 passes through the fixed base plate 20 and is connected to one end of the threaded rod 22. The outer surface of each threaded rod 22 is threadedly connected to a movable block 23, which can move along the limiting groove 49 as the threaded rod 22 rotates, thereby driving the fixed plate 24 to approach or move away from the material, realizing the clamping and releasing of the bottom of the material. The upper surface of each movable block 23 is fixedly connected to a fixed plate 24. The movement of the movable block 23 can clamp the bottom of the material and prevent the material from shaking in the horizontal direction during the transfer process.

[0024] In this invention: a first support column 25 is fixedly connected to the bottom surface of the connecting plate 16. A second mounting groove 26 is provided on the bottom surface of each first support column 25. Two sliding grooves 27 are provided on the inner wall of each second mounting groove 26 to guide the connecting box 28 to rise and fall in the vertical direction, so as to avoid the connecting box 28 from shifting and causing the movable wheel 29 to be unstable when touching the ground, thus ensuring the stability of the support conversion. The connecting box 28 is slidably connected inside the multiple sets of sliding grooves 27. The movable wheel 29 can be raised and lowered with the extension and retraction of the first hydraulic rod 30 to realize the conversion between rigid support and rolling support. The bottom surface of each connecting box 28 is connected to the movable wheel 29. The inner top wall of each second mounting groove 26 is equipped with a first hydraulic rod 30. The output end of each first hydraulic rod 30 is connected to the inner bottom wall of the connecting box 28. A first controller 31 is installed on the outer surface of one of the first support columns 25. A fixed column 32 is connected to one of the sides of each set of first support columns 25 that are close to each other.

[0025] In this invention: An insulated box 51 is fixedly connected to the inner bottom wall of the protective box 1. This is a key component in the heat treatment process of aluminum alloy products, reducing temperature loss during material transfer, ensuring stable heat treatment process parameters, and preventing sudden temperature drops from affecting material properties. A first door panel 43 is hinged to the front of the insulated box 51. Multiple second hydraulic rods 33 are installed on the inner wall of the protective box 1. The output end of each set of second hydraulic rods 33 passes through the insulated box 51 and is fixedly connected to a movable plate 34, which can move synchronously with the extension and retraction of the second hydraulic rods 33. This ensures that the fixed rod 36 can smoothly approach the material, avoiding hard contact that could damage the material. Two movable plates 34 are close to each other... Multiple third mounting slots 35 are provided on the sides to provide installation space for the buffer springs 50 and the fixing rods 36, and to limit the fixing rods 36 to prevent them from being pushed out. Each third mounting slot 35 is connected to a buffer spring 50. The buffer springs 50 can absorb excess thrust through compression to prevent the fixing rods 36 from damaging the material surface by hard squeezing. This is especially suitable for fixing precision aluminum alloy products. The end of each buffer spring 50 away from the movable plate 34 is connected to a fixing rod 36. Through close contact with the side of the material, the material can be restricted from shifting in the lateral direction. In conjunction with the buffer springs 50, the material can also be prevented from being damaged by hard squeezing.

[0026] In this invention: A third hydraulic rod 37 is installed on the inner top wall of the protective box 1 to provide pressure for the lower pressure plate 41 to adhere to the top of the material, thereby achieving the pressing and fixing of the top of the material. The output end of the third hydraulic rod 37 passes through the insulation box 51 and is connected to a push plate 38. Multiple sliding rods 39 are connected to the bottom surface of the push plate 38 to prevent the lower pressure plate 41 from shifting and causing uneven force on the top of the material. A fixing block 40 is fixedly connected to the bottom end of each sliding rod 39 to prevent the lower pressure plate 41 from falling off from the bottom end of the sliding rod 39 under the action of the return spring 42, ensuring the lower pressure plate 41 is securely fixed. The pressure plate 41 is stably connected to the slide bar 39. The outer surfaces of multiple slide bars 39 are slidably connected to the lower pressure plate 41. Under the thrust of the third hydraulic rod 37 and the elastic pressure of the return spring 42, it can tightly fit the top of the material to prevent the material from shaking or falling in the vertical direction. Multiple return springs 42 are connected to the upper surface of the lower pressure plate 41. The return springs 42 can absorb excess pressure through elastic deformation to avoid hard pressure damage to the material. The end of each return spring 42 away from the lower pressure plate 41 is connected to the bottom surface of the push plate 38.

[0027] In this invention: a second door panel 44 is hinged to the front of the protective box 1, and a second controller 45 is installed on the outer surface of the second door panel 44.

[0028] In this invention: the bottom surface of the protective box 1 is provided with multiple circular grooves 46, and the inner top wall of each circular groove 46 is equipped with a fourth hydraulic rod 47. When extended, it can push the caster wheel 48 to touch the ground, driving the protective box 1 to move as a whole. When retracted, it can retract the caster wheel 48 into the circular groove 46, so that the bottom surface of the protective box 1 can be directly placed on the ground and fixed. The output end of each fourth hydraulic rod 47 is connected to the caster wheel 48, which makes it convenient for operators to adjust the position of the device in the workshop and adapt to the material transfer needs of different processes.

[0029] During the fixing process, the second controller 45 starts the third motor 21, which drives the threaded rod 22 to rotate. Through the threaded transmission, the movable block 23 moves, so that the fixing plate 24 forms a stable clamping and fixing on the bottom of the material. Then, the second hydraulic rod 33 is started to push the movable plate 34 closer to the material, so that the fixing rod 36 makes close contact with the side of the material, completing the limiting and fixing of the side of the material. Finally, the third hydraulic rod 37 is started to push the lower pressure plate 41 to move downward and fit against the top of the material. The elastic pressure of the return spring 42 is used to achieve the pressing and fixing of the top of the material.

[0030] When unloading is required, the fixing is first released, and then the first hydraulic rod 30 is activated by the first controller 31. The output end of the first hydraulic rod 30 extends downward and applies a vertical downward thrust to the connecting box 28. Since the connecting box 28 is slidably connected to the sliding groove 27 on the inner wall of the second mounting groove 26 through the sliders on both sides, under the action of the thrust, the connecting box 28 moves smoothly down along the guide trajectory of the sliding groove 27 until the movable wheel 29 installed at its bottom fully contacts the ground, and the rigid support is converted into a rolling support.

[0031] After the movable wheel 29 completes its support, the second motor 11 is started by the first controller 31. Its output end drives the round rod passing through the connecting block 10 to rotate, and the locking block 12 connected to the round rod rotates coaxially. Initially, the locking block 12 is horizontally locked into the slot 19 on the bottom surface of the connecting plate 16, fixing their relative positions. At this time, the motor drives the locking block 12 to rotate away from the slot 19 to the vertical, so that it completely breaks away from the limit, releasing the connection between the connecting plate 16 and the connecting block 10, allowing the connecting plate 16 to move along the support plate 2.

[0032] Finally, the first motor 4 is activated to perform the ejection action. The output end of the first motor 4 drives the rotating shaft 5 to rotate clockwise. The first gear 6, fixed on the outer surface of the rotating shaft 5, rotates synchronously with the rotating shaft 5. Since the first gear 6 and the second gear 8 on the connecting rod 7 in the elongated groove 3 are connected by a chain 9, the rotation of the first gear 6 is transmitted to the second gear 8 through the chain 9, causing the second gear 8 to rotate together with the connecting rod 7. Finally, the chain 9 circulates along the meshing trajectory of the first gear 6 and the second gear 8. At this time, the outer surface of the chain 9 is fixed. The connecting block 10 moves in the unloading direction along the chain 9, and the side of the connecting block 10 is in contact with the end of the connecting plate 16. Driven by the chain 9, the connecting block 10 applies a horizontal thrust to the end of the connecting plate 16, pushing the connecting plate 16 to move along the upper surface of the support plate 2. The roller group 18 at the bottom of the connecting plate 16 rolls along the support plate 2, and the movable wheel 29 rolls along the ground, jointly assisting the connecting plate 16 to move smoothly towards the unloading area until the connecting plate 16 is completely removed from the protective box 1 or reaches the designated unloading position, completing the entire ejection process.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A transport device for heat treatment of aluminum alloy products, comprising a protective box (1), characterized in that, The inner bottom wall of the protective box (1) is fixedly connected to two support plates (2). Each support plate (2) has an elongated groove (3) on its upper surface. A first motor (4) is installed on the side of the two support plates (2) that are far apart from each other. The output end of each first motor (4) passes through the support plate (2) and is connected to a rotating shaft (5). A first gear (6) is fixedly connected to the outer surface of each rotating shaft (5). A connecting rod (7) is rotatably connected inside each elongated groove (3). A second gear (8) is fixedly connected to the outer surface of each connecting rod (7). Each second gear (8) is connected to the corresponding first gear (6) by a chain (9).

2. The conveying device for heat treatment of aluminum alloy products according to claim 1, characterized in that, Each chain (9) has a connecting block (10) fixedly connected to its outer surface. Each connecting block (10) has a locking block (12) rotatably connected to its interior via a round rod. A second motor (11) is installed on the side of each connecting block (10) that is far apart from each other. The output end of each second motor (11) passes through the connecting block (10) and is connected to one end of the round rod. Each chain (9) has a blocking block (13) fixedly connected to its outer surface.

3. The conveying device for heat treatment of aluminum alloy products according to claim 1, characterized in that, Limiting plates (14) are fixedly connected to the opposite sides of the two support plates (2), and a barrier plate (15) is connected to the upper surface of the two support plates (2).

4. The conveying device for heat treatment of aluminum alloy products according to claim 1, characterized in that, The upper surfaces of the two support plates (2) are slidably connected to a connecting plate (16). The bottom surface of the connecting plate (16) has two first mounting grooves (17). Each first mounting groove (17) is equipped with a roller assembly (18). The upper surface of the connecting plate (16) has two slots (19). The interior of each slot (19) is engaged with the outer surface of the locking block (12).

5. A transport device for heat treatment of aluminum alloy products according to claim 4, characterized in that, A fixed base plate (20) is fixedly connected to the upper surface of the connecting plate (16). The upper surface of the fixed base plate (20) is provided with multiple limiting grooves (49). Each limiting groove (49) is rotatably connected to a threaded rod (22). Multiple third motors (21) are installed on the opposite sides of the fixed base plate (20). The output end of each third motor (21) passes through the fixed base plate (20) and is connected to one end of the threaded rod (22). The outer surface of each threaded rod (22) is threadedly connected to a movable block (23). The upper surface of each movable block (23) is fixedly connected to a fixed plate (24).

6. A conveying device for heat treatment of aluminum alloy products according to claim 4, characterized in that, The bottom surface of the connecting plate (16) is fixedly connected to a first support column (25). The bottom surface of each first support column (25) is provided with a second mounting groove (26). The inner wall of each second mounting groove (26) is provided with two sliding grooves (27). The interior of multiple sets of sliding grooves (27) is slidably connected to a connecting box (28). The bottom surface of each connecting box (28) is connected to a movable wheel (29). The inner top wall of each second mounting groove (26) is installed with a first hydraulic rod (30). The output end of each first hydraulic rod (30) is connected to the inner bottom wall of the connecting box (28). The outer surface of one of the first support columns (25) is installed with a first controller (31). The sides of each set of first support columns (25) that are close to each other are connected to a fixed column (32).

7. A conveying device for heat treatment of aluminum alloy products according to claim 1, characterized in that, The inner bottom wall of the protective box (1) is fixedly connected to an insulated box (51). The front of the insulated box (51) is hinged to a first door panel (43). The inner wall of the protective box (1) is equipped with multiple second hydraulic rods (33). The output end of each set of second hydraulic rods (33) passes through the insulated box (51) and is fixedly connected to a movable plate (34). Multiple third mounting slots (35) are opened on the side of the two movable plates (34) that are close to each other. A buffer spring (50) is connected inside each third mounting slot (35). A fixed rod (36) is connected to the end of each buffer spring (50) that is away from the movable plate (34).

8. A conveying device for heat treatment of aluminum alloy products according to claim 1, characterized in that, The inner top wall of the protective box (1) is equipped with a third hydraulic rod (37). The output end of the third hydraulic rod (37) passes through the insulation box (51) and is connected to a push plate (38). The bottom surface of the push plate (38) is connected to multiple sliding rods (39). The bottom end of each sliding rod (39) is fixedly connected to a fixing block (40). The outer surfaces of the multiple sliding rods (39) are slidably connected to a lower pressure plate (41). The upper surface of the lower pressure plate (41) is connected to multiple return springs (42). The end of each return spring (42) away from the lower pressure plate (41) is connected to the bottom surface of the push plate (38).

9. A conveying device for heat treatment of aluminum alloy products according to claim 1, characterized in that, The protective box (1) has a second door panel (44) hinged to the front, and a second controller (45) is installed on the outer surface of the second door panel (44).

10. A conveying device for heat treatment of aluminum alloy products according to claim 1, characterized in that, The bottom surface of the protective box (1) is provided with a plurality of circular grooves (46), and a fourth hydraulic rod (47) is installed on the inner top wall of each circular groove (46), and a universal wheel (48) is connected to the output end of each fourth hydraulic rod (47).

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