Powder metallurgy sintering equipment for powder metallurgy intelligent heat treatment production line

Abstract

The invention discloses powder metallurgy sintering equipment for a powder metallurgy intelligent heat treatment production line, and relates to the technical field of sintering, the powder metallurgy sintering equipment comprises a sintering box, and further comprises a sintering device and an air suction device, a base is fixedly mounted at the bottom of the sintering box, a rotating door is rotatably mounted on the surface of the sintering box, and a flow guide plate is fixedly mounted on the inner wall of the sintering box; wherein the sintering device comprises a positive and negative rotation motor, a screw rod, a movable block, a rotating shaft, a sintering frame, an electric heating pipe, a connecting rope and a round rod, the screw rod is driven to rotate through the positive and negative rotation motor, and the screw rod rotates to drive the movable block to move downwards and make contact with a heat source at the inner end of the sintering box through adjustment; the positive and negative rotation motor is fixedly installed at the bottom of the sintering box, the screw rod is fixedly installed at the output end of the positive and negative rotation motor, the movable block is slidably connected to the surface of the screw rod in a sleeving mode, and the rotating shaft is fixedly installed on the surface of the movable block.

Description

Technical Field

[0001] The present invention relates to the technical field of sintering, and specifically to a powder metallurgy sintering device for a powder metallurgy intelligent heat treatment production line. Background Technique

[0002] Powder metallurgy materials need to be effectively processed to be prepared. Powder metallurgy materials are made through processes such as formulation, pressing, sintering, and post-treatment. Sintering is an important step in the preparation of powder metallurgy materials, where the pressed parts are placed in a closed furnace with a reducing atmosphere for sintering.

[0003] The patent with the patent announcement number CN209969562U relates to a clean powder metallurgy sintering device, including a sintering furnace body. A support frame is installed at the bottom of the sintering furnace body, and the bottom of the support frame is fixedly connected to a bottom plate. A hollow heat capacity layer is provided on the side wall of the sintering furnace body. An oil inlet pipe is inlaid at the top of the heat capacity layer, and an oil outlet pipe is inlaid at the bottom of the heat capacity layer. The sintering furnace body is used to place the metallurgical mold for sintering. The sintering furnace body is heated by introducing hot oil through the hollow heat capacity layer. The hot oil enters through the oil inlet pipe at the top of the heat capacity layer and is discharged through the oil outlet pipe at the bottom. The heat is transferred by the hot oil in the heat capacity layer to heat the sintering furnace body, so as to achieve the purpose of heating and forming the metal powder inside the sintering furnace body. In the above patent, the hot oil is discharged through the oil outlet pipe at the bottom, and the sintering furnace body is heated by the heat transfer of the hot oil in the heat capacity layer, so as to achieve the purpose of heating and forming the metal powder inside the sintering furnace body. However, during the heating process, the contact area between the powder metallurgy material sintering and the heat source is not uniform enough, resulting in uneven heating of different parts during the sintering of the powder metallurgy material, thus affecting the overall quality of the powder metallurgy material sintering and the sintering efficiency of the powder metallurgy material. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a powder metallurgy sintering device for a powder metallurgy intelligent heat treatment production line, which solves the problems raised in the above background technique.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A powder metallurgy sintering device for a powder metallurgy intelligent heat treatment production line, including a sintering box, further including a sintering device and an air suction device. A base is fixedly installed at the bottom of the sintering box, a revolving door is rotatably installed on the surface of the sintering box, and a deflector is fixedly installed on the inner wall of the sintering box. Among them, the sintering device includes a forward and reverse motor, a screw rod, a movable block, a rotating shaft, a sintering rack, electric heating tubes, a connecting rope, and a round rod. The screw rod is driven to rotate by the forward and reverse motor. The rotation of the screw rod will drive the movable block to move downward. The downward movement of the movable block will drive the rotating shaft to move downward. The downward movement of the rotating shaft will drive the sintering rack to move downward. By adjusting the contact with the heat source inside the sintering box, the area of contact between the powder metallurgy material and the heat source during the production process is made more uniform. The forward and reverse motor is fixedly installed at the bottom of the sintering box, the screw rod is fixedly installed at the output end of the forward and reverse motor, the movable block is slidably sleeved on the surface of the screw rod, the rotating shaft is fixedly installed on the surface of the movable block, the sintering rack is rotatably installed on the surface of the rotating shaft, the electric heating tubes are fixedly installed on the inner wall of the sintering box, one end of the connecting rope is fixedly installed at the top of the inner wall of the sintering box, the other end of the connecting rope is fixedly installed on the surface of the deflector, and the round rod is fixedly installed on the surface of the sintering box. When the sintering rack moves downward, the connecting rope will pull one end of the sintering rack, making it impossible for one end of the sintering rack to move downward, thereby causing the sintering rack to rotate upward. By the upward rotation of the sintering rack, the sintering rack and the electric heating tubes are parallel, so that the powder metallurgy material has the same heating distance, preventing different heating degrees among the powder metallurgy materials and affecting the overall heating effect.

[0006] According to the above technical solution, the connecting rope is elastic, and a first torsion spring is provided between the sintering rack and the rotating shaft to drive the sintering rack to reset through the first torsion spring.

[0007] According to the above technical solution, the air suction device includes a partition board, an air suction machine, an air suction pipe, and a collection box. The water vapor generated during cooling is sucked into the air suction pipe by the air suction machine and then enters the collection box through the air suction pipe. At the same time, the deflector will divert the cooled water into the collection box. The partition board is fixedly installed on the inner wall of the sintering box, the air suction machine is fixedly installed on the surface of the partition board, the air suction pipe is fixedly installed on the surface of the air suction machine, the collection box is fixedly installed at the bottom of the air suction pipe, a diversion port is opened on the surface of the partition board, and a water inlet is opened on the surface of the collection box. By collecting the water vapor, it is prevented that the generated water vapor adheres to the product and has an adverse effect on the product quality.

[0008] According to the above technical solution, a water pump penetrates through the surface of the collection box, a water storage tank is fixedly installed on the surface of the water pump, and a heating block is fixedly installed at the bottom of the inner wall of the water storage tank. At the same time, the collected cooling water is pumped into the water storage tank by the water pump for recycling of water resources, and then the water is heated by the heating block to form a water circulation utilization, preventing waste of resources.

[0009] According to the above technical solution, it further includes a cooling device and a limiting device. The cooling device includes a water delivery tank, a hollow circle, a long rod, a heat insulation plate, and a conduction box. When inhaling, negative pressure is generated inside the suction pipe, which drives the hollow circle to slowly move downward. The slow downward movement of the hollow circle will drive the long rod to slowly move downward. The water delivery tank is fixedly installed on the top of the sintering box. The water delivery tank is provided with a water delivery pipe, and the water delivery pipe fixedly penetrates through the top of the water storage tank. The hollow circle is slidably installed on the inner wall of the suction pipe, and the heat insulation plate is slidably installed on the inner wall of the water storage tank. One end of the long rod is fixedly installed on the top of the hollow circle, and the other end of the long rod is fixedly installed on the bottom of the heat insulation plate. The conduction box is fixedly installed on the surface of the water storage tank. A first spring is arranged between the hollow circle and the suction pipe, and a second spring is arranged between the heat insulation plate and the water storage tank. By gradually cooling the product, the temperature of the object is slowly and orderly reduced to reduce thermal stress and prevent uneven structure or cracks from forming on the surface of the rapidly cooled object, which affects the appearance and surface quality. The first spring drives the hollow circle to reset, and the second spring drives the heat insulation plate to reset.

[0010] According to the above technical solution, a connecting rod is fixedly installed on the top inner wall of the conduction box. A rotating fan is rotatably installed on the surface of the connecting rod. A cooling device is fixedly installed on the top of the conduction box. The rotating fan is arranged at the water inlet. When water enters, it will drive the rotating fan to rotate. By rotating the rotating fan, the hot water and cold water can be mixed more evenly, preventing temperature difference during cooling, resulting in uneven heating and cooling, and affecting the cooling effect.

[0011] According to the above technical solution, the limiting device includes a sliding frame, a sliding plate, and a handle. By moving the sliding frame, the product is restricted between the sintering frame and the sliding frame. The sliding frame is slidably installed on the top of the sintering frame. The sliding plate is slidably installed on the surface of the sintering frame. The handle is fixedly installed on the bottom of the sliding plate. A third spring is arranged between the sliding frame and the sintering frame, and a fourth spring is arranged between the sliding plate and the sintering frame. It prevents the sliding frame from opening and the product from falling out of the sintering frame during the flipping process. The third spring drives the sliding frame to reset, and the fourth spring drives the sliding plate to reset.

[0012] According to the above technical solution, a placement rack is fixedly installed on the surface of the sintering frame. A short rod is fixedly installed on the bottom of the sliding plate. A control switch is fixedly installed on the top of the placement rack. The control switch is electrically connected to the forward and reverse motor. The control switch is arranged at the bottom of the short rod. When the sliding frame is in the open state, it will push the sliding plate downward. The downward movement of the sliding plate will drive the short rod downward. The downward movement of the short rod will contact the control end of the control switch, preventing the forward and reverse motor from starting without closing the sliding frame, resulting in the product falling to the bottom of the sintering box and affecting the processing efficiency.

[0013] The present invention provides a powder metallurgy sintering device for a powder metallurgy intelligent heat treatment production line. It has the following beneficial effects: (1) In this invention, the forward and reverse electric drive rotates the screw rod. While rotating, it drives the sintering rack to move up and down, enabling the powder metallurgy material placed at the inner end of the sintering rack to be moved and adjusted to contact the heat source at the inner end of the sintering box. This makes the contact area between the powder metallurgy material and the heat source more uniform during the production process of the powder metallurgy material, improving the sintering effect of the powder metallurgy material produced by this device. At the same time, during the up and down movement of the upper and lower sintering racks, the connecting rope will pull the sintering rack to flip. Through flipping, the bottom of the powder metallurgy material can be heated, making the heat receiving distance of the powder metallurgy material the same, preventing different degrees of heating among the powder metallurgy materials and affecting the overall heating effect.

[0014] (2) In this invention, the steam generated by cooling is sucked into the collection box by an air suction machine, preventing the generated steam from adhering to the product and having an adverse effect on the product quality. At the same time, the sucked steam will be discharged into the collected cooling water, and the cooling water is used to neutralize the sucked steam, preventing the waste of steam. At the same time, a water pump is used to pump the collected water into the water storage tank for recycling, forming a water cycle and preventing resource waste.

[0015] (3) In this invention, the cold water and hot water are separated by a heat insulation board. First, equal amounts of hot water and cold water enter. Then, the negative pressure generated by air suction drives the hollow circle to move slowly downward, causing the hollow circle to drive the heat insulation board to move slowly downward. During the movement, the amount of hot water entering will gradually decrease, while the cold water increases instead, gradually cooling the product and slowly and orderly reducing the temperature of the object to reduce thermal stress, preventing uneven structures or cracks from forming on the surface of the object due to rapid cooling, which affects the appearance and surface quality. When the water enters, it will drive the rotating fan to rotate. Through rotation, the hot water and cold water can be neutralized more evenly, preventing temperature differences during cooling and resulting in uneven heating and cooling, which affects the cooling effect.

[0016] (4) In this invention, a sliding frame is set to limit the products placed on the sintering rack, preventing the products from falling out of the sintering rack during the flipping process. At the same time, when the sliding frame is closed, the sliding plate will limit the sliding plate, preventing the sliding plate from sliding during the rotation and affecting the sintering efficiency. At the same time, when the sliding plate is in the open state, it will press the control end of the control switch to stop the rotation of the motor, preventing the motor from starting without closing the sliding frame and affecting the processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the sintering box of the present invention; Figure 3 It is a schematic diagram of the structure of the sintering device of the present invention; Figure 4 Schematic diagram of the internal structure of the suction pipe of the present invention; Figure 5 Schematic diagram of the internal structure of the water delivery tank of the present invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure of part A in; Figure 7 Schematic diagram of the internal structure of the sintering rack of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure of part B in.

[0018] In the figure: 1, sintering box; 2, base; 3, revolving door; 4, deflector; 51, forward and reverse motor; 52, screw rod; 53, movable block; 54, rotating shaft; 55, sintering rack; 56, electric heating tube; 57, connecting rope; 58, round rod; 61, partition board; 62, air suction machine; 63, suction pipe; 64, collection box; 65, water pump; 66, water storage tank; 67, heating block; 71, water delivery tank; 72, hollow circle; 73, long rod; 74, heat insulation board; 75, conduction box; 76, connecting rod; 77, rotating fan; 78, cooling equipment; 81, sliding rack; 82, sliding plate; 83, handle; 84, placing rack; 85, short rod; 86, control switch. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4, an embodiment of the present invention is: a powder metallurgy sintering device for a powder metallurgy intelligent heat treatment production line, including a sintering box 1, and further including a sintering device and an air suction device. A base 2 is fixedly installed at the bottom of the sintering box 1, a revolving door 3 is rotatably installed on the surface of the sintering box 1, and a guide plate 4 is fixedly installed on the inner wall of the sintering box 1; wherein, the sintering device includes a forward and reverse motor 51, a screw rod 52, a movable block 53, a rotating shaft 54, a sintering rack 55, an electric heating tube 56, a connecting rope 57 and a round rod 58. The rotation of the screw rod 52 is driven by the forward and reverse motor 51. The rotation of the screw rod 52 will drive the movable block 53 to move downward. The downward movement of the movable block 53 will drive the rotating shaft 54 to move downward. The downward movement of the rotating shaft 54 will drive the sintering rack 55 to move downward. By adjusting the contact with the heat source inside the sintering box 1, the area of contact between the powder metallurgy material and the heat source during the production process is made more uniform. The forward and reverse motor 51 is fixedly installed at the bottom of the sintering box 1, the screw rod 52 is fixedly installed at the output end of the forward and reverse motor 51, the movable block 53 is slidably sleeved on the surface of the screw rod 52, the rotating shaft 54 is fixedly installed on the surface of the movable block 53, the sintering rack 55 is rotatably installed on the surface of the rotating shaft 54, the electric heating tube 56 is fixedly installed on the inner wall of the sintering box 1, one end of the connecting rope 57 is fixedly installed at the top of the inner wall of the sintering box 1, the other end of the connecting rope 57 is fixedly installed on the surface of the guide plate 4, and the round rod 58 is fixedly installed on the surface of the sintering box 1. When the sintering rack 55 moves downward, the connecting rope 57 will pull one end of the sintering rack 55, making one end of the sintering rack 55 unable to move downward, so that the sintering rack 55 rotates upward. By the upward rotation of the sintering rack 55, the sintering rack 55 and the electric heating tube 56 are parallel, making the heating distance of the powder metallurgy material the same, preventing different heating degrees between the powder metallurgy materials and affecting the overall heating effect.

[0021] The connecting rope 57 has elasticity, and a first torsion spring is arranged between the sintering rack 55 and the rotating shaft 54 to drive the sintering rack 55 to reset through the first torsion spring.

[0022] The air suction device includes a partition plate 61, an air suction machine 62, an air suction pipe 63 and a collection box 64. The water vapor generated during cooling is sucked into the air suction pipe 63 by the air suction machine 62, and then enters the collection box 64 through the air suction pipe 63. At the same time, the guide plate 4 will divert the cooled water into the collection box 64. The partition plate 61 is fixedly installed on the inner wall of the sintering box 1, the air suction machine 62 is fixedly installed on the surface of the partition plate 61, the air suction pipe 63 is fixedly installed on the surface of the air suction machine 62, the collection box 64 is fixedly installed at the bottom of the air suction pipe 63. A diversion port is opened on the surface of the partition plate 61, and a water inlet is opened on the surface of the collection box 64. By collecting the water vapor, it is prevented that the water vapor adheres to the product and has an adverse effect on the product quality.

[0023] A water pump 65 is fixedly penetrated through the surface of the collection tank 64. A water storage tank 66 is fixedly installed on the surface of the water pump 65. A heating block 67 is fixedly installed at the bottom of the inner wall of the water storage tank 66. At the same time, the collected cooling water is pumped into the water storage tank 66 by the water pump 65 to recycle the water resources, and then the water is heated by the heating block 67 to form a water cycle utilization, preventing waste of resources.

[0024] When this embodiment works, the screw rod 52 is driven to rotate by the forward and reverse motor 51. The rotation of the screw rod 52 drives the movable block 53 to move downward. The downward movement of the movable block 53 drives the rotating shaft 54 to move downward. The downward movement of the rotating shaft 54 drives the sintering rack 55 to move downward. By adjusting the contact with the heat source at the inner end of the sintering box 1, the contact area between the powder metallurgy material and the heat source during the production process is made more uniform. At the same time, when the sintering rack 55 moves downward, the connecting rope 57 pulls one end of the sintering rack 55, making one end of the sintering rack 55 unable to move downward, so that the sintering rack 55 rotates upward. By the upward rotation of the sintering rack 55, the sintering rack 55 and the electric heating tube 56 are parallel, so that the powder metallurgy materials are at the same heating distance, preventing different heating degrees among the powder metallurgy materials from affecting the overall heating effect.

[0025] The water vapor generated during cooling is sucked into the suction pipe 63 by the air suction machine 62, and then enters the collection tank 64 through the suction pipe 63. At the same time, the guide plate 4 deflects the cooled water into the collection tank 64. By collecting the water vapor, it is prevented that the water vapor adheres to the product and has an adverse effect on the product quality. At the same time, the collected cooling water is pumped into the water storage tank 66 by the water pump 65 to recycle the water resources, and then heated by the heating block 67 to form a water cycle, preventing waste of resources.

[0026] Please refer to Figures 1-8, on the basis of the above embodiments, in another embodiment of the present invention, it further includes a cooling device and a limiting device. The cooling device includes a water delivery tank 71, a hollow circle 72, a long rod 73, a heat insulation plate 74 and a conduction box 75. When inhaling, negative pressure is generated inside the suction pipe 63, which drives the hollow circle 72 to move slowly downward. The slow downward movement of the hollow circle 72 drives the long rod 73 to move slowly downward, and the slow downward movement of the long rod 73 drives the heat insulation plate 74 to move slowly downward. The water delivery tank 71 is fixedly installed on the top of the sintering box 1. The water delivery tank 71 is provided with a water delivery pipe, and the water delivery pipe fixedly penetrates through the top of the water storage tank 66. The hollow circle 72 is slidably installed on the inner wall of the suction pipe 63, and the heat insulation plate 74 is slidably installed on the inner wall of the water storage tank 66. One end of the long rod 73 is fixedly installed on the top of the hollow circle 72, and the other end of the long rod 73 is fixedly installed on the bottom of the heat insulation plate 74. The conduction box 75 is fixedly installed on the surface of the water storage tank 66. A first spring is provided between the hollow circle 72 and the suction pipe 63, and a second spring is provided between the heat insulation plate 74 and the water storage tank 66. By gradually cooling the product, the temperature of the object is slowly and orderly reduced to reduce thermal stress and prevent uneven structures or cracks from forming on the surface of the rapidly cooled object, which affects the appearance and surface quality. The first spring drives the hollow circle 72 to reset, and the second spring drives the heat insulation plate 74 to reset.

[0027] A connecting rod 76 is fixedly installed on the top inner wall of the conduction box 75. A rotating fan 77 is rotatably installed on the surface of the connecting rod 76. A cooling device 78 is fixedly installed on the top of the conduction box 75. The rotating fan 77 is arranged at the water inlet. When water enters, it drives the rotating fan 77 to rotate. By rotating the rotating fan 77, the hot water and cold water can be mixed more evenly, preventing temperature differences during cooling, resulting in uneven heating and cooling, and affecting the cooling effect.

[0028] The limiting device includes a sliding frame 81, a sliding plate 82 and a handle 83. By moving the sliding frame 81, the product is restricted between the sintering frame 55 and the sliding frame 81. The sliding frame 81 is slidably installed on the top of the sintering frame 55. The sliding plate 82 is slidably installed on the surface of the sintering frame 55. The handle 83 is fixedly installed on the bottom of the sliding plate 82. A third spring is provided between the sliding frame 81 and the sintering frame 55, and a fourth spring is provided between the sliding plate 82 and the sintering frame 55. This prevents the sliding frame 81 from opening and dropping out of the sintering frame 55 during the flipping process of the product. The third spring drives the sliding frame 81 to reset, and the fourth spring drives the sliding plate 82 to reset.

[0029] A placing rack 84 is fixedly installed on the surface of the sintering rack 55. A short rod 85 is fixedly installed at the bottom of the sliding plate 82. A control switch 86 is fixedly installed at the top of the placing rack 84. The control switch 86 is electrically connected to the forward and reverse motor 51. The control switch 86 is arranged at the bottom of the short rod 85. When the sliding rack 81 is in the open state, it will push the sliding plate 82 downward. When the sliding plate 82 moves downward, it will drive the short rod 85 downward. When the short rod 85 moves downward, it will contact the control end of the control switch 86, preventing the forward and reverse motor 51 from starting without closing the sliding rack 81, resulting in the product falling to the bottom of the sintering box 1 and affecting the processing efficiency.

[0030] When this embodiment works, when inhaling, a negative pressure is generated inside the suction pipe 63, which drives the hollow circle 72 to slowly move downward. When the hollow circle 72 slowly moves downward, it will drive the long rod 73 to slowly move downward. When the long rod 73 slowly moves downward, it will drive the heat insulation plate 74 to slowly move downward. The slow downward movement of the heat insulation plate 74 can make the hot water entering the conduction box 75 gradually decrease, while the cold water increases instead. By gradually cooling the product, the temperature of the object is slowly and orderly reduced to reduce thermal stress, preventing uneven structures or cracks from forming on the surface of the rapidly cooled object, which affects the appearance and surface quality. At the same time, when water enters, it will drive the rotating fan 77 to rotate. By the rotation of the rotating fan 77, the hot water and cold water can be mixed more evenly, preventing a temperature difference when spraying and affecting the cooling effect.

[0031] When placing the product on the sintering rack 55, push the sliding rack 81. By moving the sliding rack 81, the product is restricted between the sintering rack 55 and the sliding rack 81. When moving to the limit, the sliding plate 82 will slide upward under the action of the fourth spring to reset, preventing the product from falling out of the sintering rack 55 when the sliding rack 81 opens during the flipping process. At the same time, when the sliding rack 81 is in the open state, it will push the sliding plate 82 downward. When the sliding plate 82 moves downward, it will drive the short rod 85 downward. When the short rod 85 moves downward, it will contact the control end of the control switch 86. By squeezing the control end, the forward and reverse motor 51 stops operating, preventing the forward and reverse motor 51 from starting without closing the sliding rack 81, resulting in the product falling to the bottom of the sintering box 1 and affecting the processing efficiency.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgy sintering device for a powder metallurgy intelligent heat treatment production line, including a sintering box (1), characterized in that: It also includes a sintering device, a suction device, a cooling device and a limiting device. A base (2) is fixedly installed at the bottom of the sintering box (1). A revolving door (3) is rotatably installed on the surface of the sintering box (1). A guide plate (4) is fixedly installed on the inner wall of the sintering box (1). Among them, the sintering device includes a forward and reverse motor (51), a screw rod (52), a movable block (53), a rotating shaft (54), a sintering rack (55), an electric heating tube (56), a connecting rope (57) and a round rod (58). The forward and reverse motor (51) is fixedly installed at the bottom of the sintering box (1). The screw rod (52) is fixedly installed at the output end of the forward and reverse motor (51). The movable block (53) is slidably sleeved on the surface of the screw rod (52). The rotating shaft (54) is fixedly installed on the surface of the movable block (53). The sintering rack (55) is rotatably installed on the surface of the rotating shaft (54). The electric heating tube (56) is fixedly installed on the inner wall of the sintering box (1). One end of the connecting rope (57) is fixedly installed at the top of the inner wall of the sintering box (1). The other end of the connecting rope (57) is fixedly installed on the surface of the guide plate (4). The round rod (58) is fixedly installed on the surface of the sintering box (1).

2. The powder metallurgy sintering equipment for a powder metallurgy intelligent heat treatment production line according to claim 1, characterized in that: The connecting rope (57) is elastic. A first torsion spring is arranged between the sintering rack (55) and the rotating shaft (54).

3. The powder metallurgy sintering equipment for a powder metallurgy intelligent heat treatment production line according to claim 2, characterized in that: The suction device includes a partition plate (61), a suction machine (62), a suction pipe (63) and a collection box (64). The partition plate (61) is fixedly installed on the inner wall of the sintering box (1). The suction machine (62) is fixedly installed on the surface of the partition plate (61). The suction pipe (63) is fixedly installed on the surface of the suction machine (62). The collection box (64) is fixedly installed at the bottom of the suction pipe (63). A diversion port is opened on the surface of the partition plate (61). A water inlet is opened on the surface of the collection box (64).

4. A powder metallurgy sintering device for a powder metallurgy intelligent heat treatment production line according to claim 3, characterized in that: A water pump (65) is fixedly penetrated through the surface of the collection box (64). A water storage tank (66) is fixedly installed on the surface of the water pump (65). A heating block (67) is fixedly installed at the bottom of the inner wall of the water storage tank (66).

5. The powder metallurgy sintering equipment for a powder metallurgy intelligent heat treatment production line according to claim 4, characterized in that: The cooling device includes a water delivery tank (71), a hollow circle (72), a long rod (73), a heat insulation plate (74) and a conduction box (75). The water delivery tank (71) is fixedly installed on the top of the sintering box (1). The water delivery tank (71) is provided with a water delivery pipe. The water delivery pipe is fixedly penetrated through the top of the water storage tank (66). The hollow circle (72) is slidably installed on the inner wall of the suction pipe (63). The heat insulation plate (74) is slidably installed on the inner wall of the water storage tank (66). One end of the long rod (73) is fixedly installed on the top of the hollow circle (72). The other end of the long rod (73) is fixedly installed on the bottom of the heat insulation plate (74). The conduction box (75) is fixedly installed on the surface of the water storage tank (66). A first spring is arranged between the hollow circle (72) and the suction pipe (63). A second spring is arranged between the heat insulation plate (74) and the water storage tank (66).

6. The powder metallurgy sintering equipment for a powder metallurgy intelligent heat treatment production line according to claim 5, characterized in that: A connecting rod (76) is fixedly installed at the top of the inner wall of the conduction box (75), a rotating fan (77) is rotatably installed on the surface of the connecting rod (76), a cooling device (78) is fixedly installed at the top of the conduction box (75), and the rotating fan (77) is arranged at the water inlet.

7. The powder metallurgy sintering equipment for a powder metallurgy intelligent heat treatment production line according to claim 6, characterized in that: The limiting device includes a sliding frame (81), a sliding plate (82) and a handle (83). The sliding frame (81) is slidably installed on the top of the sintering frame (55), the sliding plate (82) is slidably installed on the surface of the sintering frame (55), the handle (83) is fixedly installed at the bottom of the sliding plate (82), a third spring is arranged between the sliding frame (81) and the sintering frame (55), and a fourth spring is arranged between the sliding plate (82) and the sintering frame (55).

8. A powder metallurgy sintering device for a powder metallurgy intelligent heat treatment production line according to claim 7, characterized in that: A placing rack (84) is fixedly installed on the surface of the sintering frame (55), a short rod (85) is fixedly installed at the bottom of the sliding plate (82), a control switch (86) is fixedly installed at the top of the placing rack (84), the control switch (86) is electrically connected to the forward and reverse motor (51), and the control switch (86) is arranged at the bottom of the short rod (85).

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