ADI material heat treatment preparation device and method thereof

Abstract

The invention belongs to the technical field of salt bath quenching treatment, and particularly discloses an ADI material heat treatment preparation device and a method thereof.The ADI material heat treatment preparation device comprises channel type double-rail transfer mechanisms, a heat insulation transfer mechanism, a dual-mode driving mechanism, a heating furnace and a salt bath tank, and the channel type double-rail transfer mechanisms are arranged at the two ends of the heat insulation transfer mechanism; and the heating furnace and the salt bath tank are in through connection through a channel type double-rail transfer mechanism and a heat insulation transfer mechanism. A driving motor for driving the transfer vehicle assembly to slide is further utilized, opening of the heat insulation curtain is automatically controlled while the transfer vehicle assembly slides, and therefore the technical effects that the heat insulation curtain is automatically opened when the transfer vehicle assembly moves and is automatically closed when the transfer vehicle assembly is static are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of salt bath quenching treatment, and specifically refers to a device and method for heat treatment preparation of ADI materials. Background Art

[0002] Austempered ductile iron (ADI) is a high-performance material. During its preparation process, the austenitized cast iron workpiece needs to be quickly transferred to a salt bath tank for austempering and held at a certain temperature for a period of time. The following are the main problems existing in the traditional heat treatment equipment during the transfer process: A: The transfer speed is slow, resulting in a large drop in the workpiece temperature and affecting the microstructure transformation. B: The traditional transfer track is an integral track. Not only is it difficult to select materials (because of the large temperature difference at both ends), but also due to the good thermal conductivity of the metal, the heat in the heating furnace will quickly transfer towards the salt bath tank, resulting in waste of heat. C: The traditional workpiece transfer path is completely exposed to the air, causing the workpiece to come into contact with oxygen and easily resulting in surface oxidation of the workpiece. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a device and method for heat treatment preparation of ADI materials. This solution replaces the traditional single-track design with a split double-track design. On the one hand, it can cut off the middle heat conduction path, and on the other hand, it can select different materials to adapt to their respective working conditions. Moreover, the present invention also isolates the transfer path from the outside through a heat insulation transfer mechanism, and continuously maintains a negative pressure in the vacuum transfer chamber through a negative pressure pump, which can reduce the gas density in the vacuum transfer chamber and reduce the heat conduction efficiency.

[0004] In addition, the present invention also uses a drive motor that drives the transfer vehicle assembly to slide, and automatically controls the opening of the heat insulation curtain while the transfer vehicle assembly slides, so as to achieve the technical effect that the heat insulation curtain automatically opens when the transfer vehicle assembly moves (leaving space for the passage of the transfer vehicle assembly) and automatically closes when the transfer vehicle assembly is stationary (isolating heat exchange).

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes an ADI material heat treatment preparation device, including a channel-type double-track transfer mechanism, a heat-insulating transfer mechanism, a dual-mode drive mechanism, a heating furnace and a salt bath tank, wherein the channel-type double-track transfer mechanism is arranged at both ends of the heat-insulating transfer mechanism, and the heating furnace and the salt bath tank are connected through the channel-type double-track transfer mechanism and the heat-insulating transfer mechanism, and the dual-mode drive mechanism includes a rope-winding sliding control component, an automatic penetration component, a hydraulic driving component and a driving component, wherein the rope-winding sliding control component is arranged inside the salt bath tank, the automatic penetration component is arranged on the heat-insulating transfer mechanism and the salt bath tank, the hydraulic driving component is arranged outside the salt bath tank, and the driving component is arranged outside the salt bath tank; Furthermore, the channel-type double-track transfer mechanism includes a reciprocatingly sliding transfer vehicle assembly, and the transfer vehicle assembly can be driven to slide by a driving assembly; Furthermore, the thermal insulation transfer mechanism includes a vacuum chamber assembly, and the vacuum chamber assembly includes a vacuum transfer chamber, a negative pressure pump and a thermal insulation curtain. The negative pressure pump is arranged on the vacuum transfer chamber, and the thermal insulation curtain is slidably arranged at both ends of the vacuum transfer chamber.

[0006] The drive motor that drives the transfer vehicle assembly to slide can simultaneously control the opening and closing of the thermal insulation curtain, so that during the sliding of the transfer vehicle assembly, the thermal insulation curtain is automatically raised to leave space for the passage of the transfer vehicle assembly. After the transfer vehicle assembly stops, the thermal insulation curtain will automatically reset to maintain the negative pressure state in the vacuum chamber assembly and reduce the heat exchange between the heating furnace and the salt bath. By physically isolating the high-temperature zone and the low-temperature zone, the problems of high heat conduction and serious waste in the traditional monorail system can be effectively solved.

[0007] Preferably, the hydraulic propulsion assembly includes a tail shaft, an impeller, a sliding bracket and a sliding cylinder, the driving assembly can drive the tail shaft to rotate, the impeller is arranged on the tail shaft, the sliding bracket is arranged on the outside of the salt bath tank, and the sliding cylinder is slidably arranged in the sliding bracket. When the sliding cylinder slides, it can slide with the thermal insulation curtain through the automatic through-assembly.

[0008] The sliding cylinder is pushed by the rotation of the impeller, and the automatic through-hole assembly can be driven according to the movement state of the transfer vehicle assembly. After the thermal insulation curtain rises, even if the driving motor continues to rotate, it will not cause damage to the hydraulic driving assembly. Different from the traditional linkage structure, this solution can achieve small-amplitude intermittent driving of the thermal insulation curtain by means of a driving motor that rotates continuously for a long time.

[0009] As a further preference of the present invention, the automatic through-component includes a steering shaft bracket, a steering wheel and a linkage cable. The steering shaft brackets are respectively arranged on the vacuum transfer chamber and the salt bath tank. The steering wheel is rotatably arranged on the steering shaft bracket. The linkage cable is in rolling contact with the steering wheel. One end of the linkage cable is arranged on the sliding cylinder, and the other end of the linkage cable is arranged on the heat insulation curtain. A collar part is arranged on the steering shaft bracket located on the salt bath tank, and the linkage cable passes through the collar part.

[0010] The end of the linkage cable swings with the collar part as the fulcrum. Therefore, no matter which direction the sliding cylinder slides, the same traction effect can be achieved on the linkage cable.

[0011] Furthermore, the transfer vehicle component includes a transfer sliding shaft, a sliding plate and a clamping device. The transfer sliding shaft is rotatably arranged below the sliding plate. The number of the transfer sliding shafts is not less than three groups, and the clamping device is arranged on the sliding plate.

[0012] Through the reciprocating sliding of the transfer vehicle component, the workpiece heated in the heating furnace can be transferred to the salt bath tank. During the non-transfer stage, the vacuum chamber component can separate the high-temperature heat insulation channel and the low-temperature heat insulation channel. Combining with the negative pressure characteristics in the vacuum transfer chamber, the heat exchange rate in the heat insulation transfer mechanism can be greatly reduced, thus achieving the technical effect of solving energy problems.

[0013] As a preference, the channel-type double-track transfer mechanism further includes a low-temperature track and a trolley reset component. The trolley reset component includes a spring base one, a spring base two and a reset spring. The spring base one is arranged on the sliding plate. A low-temperature sliding groove is arranged on the low-temperature track. The spring base two is arranged on the low-temperature sliding groove, and the reset spring is arranged between the spring base one and the spring base two.

[0014] The separate design of the high-temperature track and the low-temperature track avoids the disadvantage of high heat conduction efficiency of the overall metal track. Moreover, the separate design can also use different materials to manufacture the high-temperature track and the low-temperature track, making them more adaptable to their respective working conditions.

[0015] As a further preference of the present invention, the cable-rolling type sliding control component includes a reel bracket, a cable-rolling shaft, a reel and a reset cable. The reel bracket is fixedly connected to the inner wall of the salt bath tank. The cable-rolling shaft is rotatably arranged in the reel bracket. The reel is fixedly connected to the cable-rolling shaft. One end of the reset cable is wound around the reel, and the other end of the reset cable passes through the spring base two and is fixedly connected to the spring base one.

[0016] Furthermore, the channel-type double-track transfer mechanism further includes a high-temperature track. The high-temperature track is located between the heating furnace and the vacuum transfer chamber. The low-temperature track is located between the salt bath tank and the vacuum transfer chamber. A high-temperature sliding groove is arranged on the high-temperature track, and the transfer sliding shaft slides in the high-temperature sliding groove and the low-temperature sliding groove.

[0017] Furthermore, the heat insulation transfer mechanism further includes a high-temperature heat insulation channel and a low-temperature heat insulation channel. The high-temperature heat insulation channel is arranged between the heating furnace and the vacuum transfer chamber, and the low-temperature heat insulation channel is arranged between the salt bath tank and the vacuum transfer chamber.

[0018] Preferably, the vacuum chamber assembly further includes a negative pressure pump arranged on the vacuum transfer chamber, and the negative pressure state in the vacuum transfer chamber can be maintained by the negative pressure pump.

[0019] As a further preference of the present invention, the driving assembly includes a driving motor, a driving gear and a driven gear. The driving motor is arranged on the outer wall of the salt bath tank. The driving gear is fixedly connected to one end of the output shaft of the driving motor. The other end of the output shaft of the driving gear is connected to the tail shaft. The driven gear is fixedly connected to the rope winding shaft, and the driving gear and the driven gear are meshed and driven.

[0020] The present invention also proposes a use method of an ADI material heat treatment preparation device, which specifically includes the following steps: Step 1: After the workpiece is heated in the heating furnace, start the driving motor. On the one hand, drive the rope winding shaft to rotate through the meshing transmission of the driving gear and the driven gear. On the other hand, drive the impeller to rotate together through the tail shaft. Step 2: When the rope winding shaft rotates, release the reset pulling rope through the reel. At this time, under the elastic force of the reset spring, the transfer vehicle assembly will slide from the end close to the salt bath tank towards the end close to the heating furnace. When the transfer vehicle assembly slides to the gap between the high-temperature chute and the low-temperature chute, since the number of transfer sliding shafts is not less than three and the distance between the transfer sliding shafts is greater than the distance between the high-temperature chute and the low-temperature chute, when one transfer sliding shaft is located in the gap between the high-temperature chute and the low-temperature chute, the other two transfer sliding shafts can still keep the transfer vehicle assembly stable until the transfer vehicle assembly slides to the end close to the heating furnace. Step 3: When the tail shaft drives the impeller to rotate, the impeller will generate a thrust on the liquid, thereby pushing the sliding cylinder to slide on the sliding bracket. When the sliding cylinder slides, it will pull the linkage pulling rope, so that the heat insulation curtain slides upward to leave space for the passage of the transfer vehicle assembly. Step 4: Then place the workpiece on the slide plate through an external picking device and clamp and fix it through the clamping device. At this time, the driving motor stops and the impeller stops rotating. Therefore, the sliding cylinder will slowly reset. When the heat insulation curtain resets, it will temporarily press the reset spring and the linkage pulling rope, but since this time is short, there will be no obvious negative impact. Then drive the driving motor in the reverse direction and drive the rope winding shaft and the tail shaft to rotate in the reverse direction at the same time. Step Five: When the rope winding shaft rotates in the reverse direction, the winding drum will wind and reel in the reset pulling rope, and at the same time overcome the elastic force of the reset spring to pull the transfer vehicle assembly back to one end close to the salt bath; when the tail shaft and the impeller rotate in the reverse direction, the sliding cylinder will slide in the reverse direction, but the pulling effect on the linkage pulling rope is the same as that during the forward sliding, and both can make the heat insulation curtain slide upward to leave space for the passage of the transfer vehicle assembly; Step Six: After the workpiece is transferred, the workpiece is transferred from the clamping device to the lifting platform in the salt bath by another external picking device, and then the workpiece can be immersed in the salt solution through the lifting platform.

[0021] The beneficial effects achieved by the present invention with the above structure are as follows: (1) Since the transfer channel of the workpiece is isolated from the outside, it can effectively shorten the transfer time and further reduce the degree of internal oxidation of the workpiece during the transfer process.

[0022] (2) By using the driving motor that drives the sliding of the transfer vehicle assembly, the opening and closing of the heat insulation curtain can be controlled simultaneously, so that during the sliding of the transfer vehicle assembly, the heat insulation curtain will be automatically raised to leave space for the passage of the transfer vehicle assembly, and after the transfer vehicle assembly stops, the heat insulation curtain will automatically reset to maintain the negative pressure state in the vacuum chamber assembly and reduce the heat exchange between the heating furnace and the salt bath. By physically isolating the high-temperature area and the low-temperature area, the problems of high heat conduction and serious waste in the traditional single-rail system can be effectively solved.

[0023] (3) By rotating the impeller to push the sliding cylinder, the automatic through-component can be driven according to the motion state of the transfer vehicle assembly, and after the heat insulation curtain rises, even if the driving motor continues to rotate, it will not cause damage to the hydraulic pushing component; different from the traditional linkage structure, this solution can achieve small-amplitude intermittent driving of the heat insulation curtain through the driving motor that rotates continuously for a long time.

[0024] (4) The end of the linkage pulling rope swings with the collar part as the fulcrum, so no matter which direction the sliding cylinder slides, the same traction effect on the linkage pulling rope can be achieved.

[0025] (5) Through the reciprocating sliding of the transfer vehicle assembly, the workpiece heated in the heating furnace can be transferred to the salt bath. During the non-transfer stage, the high-temperature heat insulation channel and the low-temperature heat insulation channel can be separated by the vacuum chamber assembly. Combining the negative pressure characteristics in the vacuum transfer chamber, the heat exchange rate in the heat insulation transfer mechanism can be greatly reduced, thus achieving the technical effect of solving energy.

[0026] (6) The high-temperature track and the low-temperature track are designed separately, avoiding the disadvantage of high heat conduction efficiency of the overall metal track, and the separate design can also use different materials to manufacture the high-temperature track and the low-temperature track, making them more adaptable to their respective working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram of a heat treatment preparation device for ADI materials proposed by the present invention; Figure 2 This is a front view of an ADI material heat treatment preparation device proposed by the present invention; Figure 3 This is a left view of a thermal treatment preparation device for ADI materials proposed by the present invention; Figure 4 for Figure 3 A cross-sectional view along the cutting line AA; Figure 5 for Figure 2 A cross-sectional view along the cutting line BB; Figure 6 for Figure 2 A cross-sectional view along the cutting line CC; Figure 7 A schematic diagram of a half-section structure of an ADI material heat treatment preparation device proposed by the present invention; Figure 8 for Figure 6 A partial enlarged view of point Ⅰ in the middle; Figure 9 for Figure 4 A partial enlarged view of point II in the middle.

[0028] Among them, 1. Channel-type double-track transfer mechanism, 2. Insulation transfer mechanism, 3. Dual-mode drive mechanism, 4. Heating furnace, 5. Salt bath, 6. High-temperature track, 7. Low-temperature track, 8. Transfer car assembly, 9. Trolley reset assembly, 10. High-temperature slide, 11. Low-temperature slide, 12. Transfer slide shaft, 13. Slide, 14. Clamping device, 15. Spring base one, 16. Spring base two, 17. Reset spring, 18. High-temperature insulation channel, 19. Low-temperature insulation channel, 20. Vacuum chamber assembly, 21. Vacuum transfer cabin, 22. Negative pressure pump, 23. Thermal insulation curtain, 24. Rope-type sliding control assembly, 25. Automatic penetration assembly, 26. Hydraulic propulsion assembly, 27. Driving assembly, 28. Reel bracket, 29. Rope reel, 30. Drum, 31. Reset rope, 32. Steering shaft bracket, 33. Steering wheel, 34. Linkage rope, 35. Tail shaft, 36. Impeller, 37. Sliding bracket, 38. Sliding cylinder, 39. Driving motor, 40. Driving gear, 41. Driven gear, 42. Ring part.

[0029] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it is necessary to understand that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0032] like Figures 1 to 9 As shown, the present invention proposes an ADI material heat treatment preparation device and method thereof, comprising a channel-type double-track transfer mechanism 1, a heat-insulating transfer mechanism 2, a dual-mode drive mechanism 3, a heating furnace 4 and a salt bath tank 5, wherein the channel-type double-track transfer mechanism 1 is arranged at both ends of the heat-insulating transfer mechanism 2, and the heating furnace 4 and the salt bath tank 5 are connected through the channel-type double-track transfer mechanism 1 and the heat-insulating transfer mechanism 2, and the dual-mode drive mechanism 3 comprises a rope-winding sliding control component 24, an automatic penetration component 25, a hydraulic driving component 26 and a driving component 27, wherein the rope-winding sliding control component 24 is arranged inside the salt bath tank 5, the automatic penetration component 25 is arranged on the heat-insulating transfer mechanism 2 and the salt bath tank 5, the hydraulic driving component 26 is arranged outside the salt bath tank 5, and the driving component 27 is arranged outside the salt bath tank 5; The channel type double-track transfer mechanism 1 includes a reciprocating sliding transfer vehicle assembly 8, and the transfer vehicle assembly 8 can be driven to slide by a driving assembly 27; The thermal insulation transfer mechanism 2 includes a vacuum chamber assembly 20 , which includes a vacuum transfer chamber 21 , a negative pressure pump 22 and a thermal insulation curtain 23 . The negative pressure pump 22 is disposed on the vacuum transfer chamber 21 , and the thermal insulation curtain 23 is slidably disposed at both ends of the vacuum transfer chamber 21 .

[0033] By utilizing the driving motor 39 that drives the transfer vehicle assembly 8 to slide, the opening and closing of the thermal insulation curtain 23 can be controlled simultaneously, so that during the sliding of the transfer vehicle assembly 8, the thermal insulation curtain 23 is automatically raised to leave space for the passage of the transfer vehicle assembly 8. After the transfer vehicle assembly 8 stops, the thermal insulation curtain 23 will automatically reset to maintain the negative pressure state in the vacuum chamber assembly 20 and reduce the heat exchange between the heating furnace 4 and the salt bath 5. By physically isolating the high-temperature zone and the low-temperature zone, the problems of high heat conduction and serious waste in the traditional monorail system can be effectively solved.

[0034] The hydraulic driving assembly 26 includes a tail shaft 35, an impeller 36, a sliding bracket 37 and a sliding cylinder 38. The driving assembly 27 can drive the tail shaft 35 to rotate. The impeller 36 is arranged on the tail shaft 35. The sliding bracket 37 is arranged outside the salt bath tank 5. The sliding cylinder 38 is slidably arranged in the sliding bracket 37. When the sliding cylinder 38 slides, it can drive the heat insulation curtain 23 to slide through the automatic through-component 25.

[0035] The rotation of the impeller 36 is used to push the sliding cylinder 38, and the automatic through-component 25 can be driven according to the motion state of the transfer cart assembly 8. And after the heat insulation curtain 23 rises, even if the driving motor 39 continues to rotate, it will not cause damage to the hydraulic driving assembly 26. Different from the traditional linkage structure, this solution can achieve small-amplitude intermittent driving of the heat insulation curtain 23 through the driving motor 39 that rotates continuously for a long time.

[0036] The automatic through-component 25 includes a steering shaft bracket 32, a steering wheel 33 and a linkage cable 34. The steering shaft brackets 32 are respectively arranged on the vacuum transfer chamber 21 and the salt bath tank 5. The steering wheel 33 is rotatably arranged on the steering shaft bracket 32. The linkage cable 34 is in rolling contact with the steering wheel 33. One end of the linkage cable 34 is arranged on the sliding cylinder 38, and the other end of the linkage cable 34 is arranged on the heat insulation curtain 23. A collar portion 42 is arranged on the steering shaft bracket 32 located on the salt bath tank 5, and the linkage cable 34 passes through the collar portion 42.

[0037] The end of the linkage cable 34 swings with the collar portion 42 as the fulcrum. Therefore, no matter which direction the sliding cylinder 38 slides, the same traction effect on the linkage cable 34 can be achieved.

[0038] The transfer cart assembly 8 includes a transfer sliding shaft 12, a sliding plate 13 and a clamping device 14. The transfer sliding shaft 12 is rotatably arranged below the sliding plate 13. The number of transfer sliding shafts 12 is not less than three groups, and the clamping device 14 is arranged on the sliding plate 13.

[0039] Through the reciprocating sliding of the transfer cart assembly 8, the workpiece heated in the heating furnace 4 can be transferred to the salt bath tank 5. And in the non-transfer stage, the vacuum chamber assembly 20 can separate the high-temperature heat insulation channel 18 and the low-temperature heat insulation channel 19. Combining the negative pressure characteristics in the vacuum transfer chamber 21, the heat exchange rate in the heat insulation transfer mechanism 2 can be greatly reduced, so as to achieve the technical effect of solving energy.

[0040] The channel-type double-track transfer mechanism 1 further includes a low-temperature track 7 and a trolley reset assembly 9. The trolley reset assembly 9 includes a spring base one 15, a spring base two 16 and a reset spring 17. The spring base one 15 is arranged on the sliding plate 13. A low-temperature sliding groove 11 is arranged on the low-temperature track 7. The spring base two 16 is arranged on the low-temperature sliding groove 11. The reset spring 17 is arranged between the spring base one 15 and the spring base two 16.

[0041] The high-temperature track 6 and the low-temperature track 7 are designed separately, which avoids the disadvantage of high heat conduction efficiency of the overall metal track. Moreover, the separate design also enables the use of different materials to manufacture the high-temperature track 6 and the low-temperature track 7, making them more adaptable to their respective working conditions.

[0042] The rope-rolling type sliding control assembly 24 includes a reel bracket 28, a rope-rolling shaft 29, a reel 30 and a reset pull rope 31. The reel bracket 28 is fixedly connected to the inner wall of the salt bath tank 5. The rope-rolling shaft 29 is rotatably arranged in the reel bracket 28. The reel 30 is fixedly connected to the rope-rolling shaft 29. One end of the reset pull rope 31 is wound around the reel 30, and the other end of the reset pull rope 31 passes through the second spring base 16 and is fixedly connected to the first spring base 15.

[0043] The channel type double-rail transfer mechanism 1 further includes a high-temperature track 6 located between the heating furnace 4 and the vacuum transfer chamber 21, and a low-temperature track 7 located between the salt bath tank 5 and the vacuum transfer chamber 21. A high-temperature sliding groove 10 is provided on the high-temperature track 6, and the transfer sliding shaft 12 is slidably arranged in the high-temperature sliding groove 10 and the low-temperature sliding groove 11.

[0044] The heat insulation transfer mechanism 2 further includes a high-temperature heat insulation channel 18 and a low-temperature heat insulation channel 19. The high-temperature heat insulation channel 18 is arranged between the heating furnace 4 and the vacuum transfer chamber 21, and the low-temperature heat insulation channel 19 is arranged between the salt bath tank 5 and the vacuum transfer chamber 21.

[0045] The vacuum chamber assembly 20 further includes a negative pressure pump 22 arranged on the vacuum transfer chamber 21. The negative pressure state in the vacuum transfer chamber 21 can be maintained through the negative pressure pump 22.

[0046] The drive assembly 27 includes a drive motor 39, a drive gear 40 and a driven gear 41. The drive motor 39 is arranged on the outer wall of the salt bath tank 5. The drive gear 40 is fixedly connected to one end of the output shaft of the drive motor 39. The other end of the output shaft of the drive gear 40 is connected to the tail shaft 35. The driven gear 41 is fixedly connected to the rope-rolling shaft 29, and the drive gear 40 and the driven gear 41 are in meshing transmission.

[0047] The high-temperature track 6 can be made of Inconel 718 alloy material that is more resistant to high temperatures, and the low-temperature track 7 can be made of 316 stainless steel material with a lower price. The high temperature and low temperature of the high-temperature track 6 and the low-temperature track 7 are relative.

[0048] During specific use, after the workpiece is heated in the heating furnace 4, the drive motor 39 is started. On the one hand, the rope-rolling shaft 29 is driven to rotate through the meshing transmission of the drive gear 40 and the driven gear 41. On the other hand, the impeller 36 is driven to rotate together through the tail shaft 35; When the cable reel 29 rotates, the reset pull cord 31 is released by the reel 30. At this time, under the elastic force of the reset spring 17, the transfer cart assembly 8 slides from one end close to the salt bath 5 towards the end close to the heating furnace 4. When the transfer cart assembly 8 slides to the gap between the high-temperature chute 10 and the low-temperature chute 11, since the number of transfer sliding shafts 12 is not less than three and the spacing between the transfer sliding shafts 12 is greater than the spacing between the high-temperature chute 10 and the low-temperature chute 11, when one transfer sliding shaft 12 is located in the gap between the high-temperature chute 10 and the low-temperature chute 11, the other two transfer sliding shafts 12 can still keep the transfer cart assembly 8 stable until the transfer cart assembly 8 slides to the end close to the heating furnace 4; When the tail shaft 35 drives the impeller 36 to rotate, the impeller 36 generates a thrust on the liquid, thereby pushing the sliding cylinder 38 to slide on the sliding bracket 37. When the sliding cylinder 38 slides, it will pull the linkage pull cord 34, so that the heat insulation curtain 23 slides upward to leave space for the passage of the transfer cart assembly 8; Then, the workpiece is placed on the slide plate 13 by an external picking device and clamped and fixed by the clamping device 14. At this time, the driving motor 39 is stationary and the impeller 36 stops rotating. Therefore, the sliding cylinder 38 will slowly reset. When the heat insulation curtain 23 resets, it will temporarily press the reset spring 17 and the linkage pull cord 34. However, since this time is short, there will be no obvious negative impact; then the driving motor 39 is driven in the reverse direction, and at the same time, the cable reel 29 and the tail shaft 35 are rotated in the reverse direction; When the cable reel 29 rotates in the reverse direction, the reel 30 winds and retracts the reset pull cord 31, and at the same time, overcomes the elastic force of the reset spring 17 to pull the transfer cart assembly 8 back to the end close to the salt bath 5; when the tail shaft 35 and the impeller 36 rotate in the reverse direction, the sliding cylinder 38 slides in the reverse direction, but the pulling effect on the linkage pull cord 34 is the same as that when sliding in the forward direction, and both can make the heat insulation curtain 23 slide upward to leave space for the passage of the transfer cart assembly 8; After the transfer of the workpiece is completed, the workpiece is transferred from the clamping device 14 to the lifting platform in the salt bath 5 by another external picking device, and then the workpiece is immersed in the salt solution through the lifting platform.

[0049] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0050] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. In summary, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. An apparatus for preparing an ADI material by heat treatment, comprising a heating furnace (4) and a salt bath tank (5), characterized in that: It also includes a channel-type double-track transfer mechanism (1), a heat-insulating transfer mechanism (2), and a dual-mode drive mechanism (3). The channel-type double-track transfer mechanism (1) is arranged at both ends of the heat-insulating transfer mechanism (2). The heating furnace (4) and the salt bath (5) are connected through the channel-type double-track transfer mechanism (1) and the heat-insulating transfer mechanism (2). The dual-mode drive mechanism (3) includes a rope-winding sliding control component (24), an automatic through-connection component (25), a hydraulic propulsion component (26), and a drive component (27). The rope-winding sliding control component (24) is arranged inside the salt bath (5). The automatic through-connection component (25) is arranged on the heat-insulating transfer mechanism (2) and the salt bath (5). The hydraulic propulsion component (26) is arranged outside the salt bath (5). The drive component (27) is arranged outside the salt bath (5). The channel-type double-track transfer mechanism (1) includes a transfer vehicle component (8) that reciprocally slides, and the transfer vehicle component (8) can be driven to slide by the drive component (27). The heat-insulating transfer mechanism (2) includes a vacuum chamber component (20). The vacuum chamber component (20) includes a vacuum transfer chamber (21), a negative pressure pump (22), and a heat-insulating curtain (23). The negative pressure pump (22) is arranged on the vacuum transfer chamber (21). The heat-insulating curtain (23) slides at both ends of the vacuum transfer chamber (21). The hydraulic propulsion component (26) includes a tail shaft (35), an impeller (36), a sliding support (37), and a sliding cylinder (38). The drive component (27) can drive the tail shaft (35) to rotate. The impeller (36) is arranged on the tail shaft (35). The sliding support (37) is arranged outside the salt bath (5). The sliding cylinder (38) slides in the sliding support (37), and when the sliding cylinder (38) slides, it can drive the heat-insulating curtain (23) to slide through the automatic through-connection component (25).

2. The heat treatment preparation device for an ADI material according to claim 1, characterized in that: The automatic through-connection component (25) includes a steering shaft support (32), a steering wheel (33), and a linkage cable (34). The steering shaft support (32) is respectively arranged on the vacuum transfer chamber (21) and the salt bath (5). The steering wheel (33) is rotatably arranged on the steering shaft support (32). The linkage cable (34) is in rolling contact with the steering wheel (33). One end of the linkage cable (34) is arranged on the sliding cylinder (38), and the other end of the linkage cable (34) is arranged on the heat-insulating curtain (23). A collar portion (42) is arranged on the steering shaft support (32) located on the salt bath (5), and the linkage cable (34) passes through the collar portion (42).

3. The heat treatment preparation device for an ADI material according to claim 2, characterized in that: The transfer vehicle component (8) includes a transfer sliding shaft (12), a sliding plate (13), and a clamping device (14). The transfer sliding shaft (12) is rotatably arranged below the sliding plate (13). The number of transfer sliding shafts (12) is not less than three groups. The clamping device (14) is arranged on the sliding plate (13).

4. The heat treatment preparation device for an ADI material according to claim 3, characterized in that: The channel-type double-rail transfer mechanism (1) further includes a low-temperature track (7) and a trolley reset assembly (9). The trolley reset assembly (9) includes a first spring base (15), a second spring base (16), and a reset spring (17). The first spring base (15) is arranged on the sliding plate (13). The low-temperature track (7) is provided with a low-temperature chute (11). The second spring base (16) is arranged on the low-temperature chute (11). The reset spring (17) is arranged between the first spring base (15) and the second spring base (16).

5. The heat treatment preparation device for an ADI material according to claim 4, characterized in that: The rope-winding type sliding control assembly (24) includes a reel bracket (28), a rope-winding shaft (29), a reel (30), and a reset pull rope (31). The reel bracket (28) is fixedly connected to the inner wall of the salt bath tank (5). The rope-winding shaft (29) is rotatably arranged in the reel bracket (28). The reel (30) is fixedly connected to the rope-winding shaft (29). One end of the reset pull rope (31) is wound around the reel (30). The other end of the reset pull rope (31) passes through the second spring base (16) and is fixedly connected to the first spring base (15).

6. The heat treatment preparation device for an ADI material according to claim 5, wherein: The channel-type double-rail transfer mechanism (1) further includes a high-temperature track (6). The high-temperature track (6) is located between the heating furnace (4) and the vacuum transfer chamber (21). The low-temperature track (7) is located between the salt bath tank (5) and the vacuum transfer chamber (21). The high-temperature track (6) is provided with a high-temperature chute (10). The transfer sliding shaft (12) is slidably arranged in the high-temperature chute (10) and the low-temperature chute (11).

7. An apparatus for preparing an ADI material by heat treatment according to claim 6, characterized in that: The heat-insulating transfer mechanism (2) further includes a high-temperature heat-insulating channel (18) and a low-temperature heat-insulating channel (19). The high-temperature heat-insulating channel (18) is arranged between the heating furnace (4) and the vacuum transfer chamber (21). The low-temperature heat-insulating channel (19) is arranged between the salt bath tank (5) and the vacuum transfer chamber (21).

8. The heat treatment preparation device for an ADI material according to claim 7, characterized in that: The vacuum chamber assembly (20) further includes a negative pressure pump (22). The negative pressure pump (22) is arranged on the vacuum transfer chamber (21). The negative pressure state in the vacuum transfer chamber (21) can be maintained through the negative pressure pump (22).

9. An apparatus for preparing an ADI material by heat treatment according to claim 8, characterized in that: The driving assembly (27) includes a driving motor (39), a driving gear (40), and a driven gear (41). The driving motor (39) is arranged on the outer wall of the salt bath tank (5). The driving gear (40) is fixedly connected to one end of the output shaft of the driving motor (39). The other end of the output shaft of the driving gear (40) is connected to the tail shaft (35). The driven gear (41) is fixedly connected to the rope-winding shaft (29). The driving gear (40) and the driven gear (41) are meshed and driven with each other.

10. A method for using an apparatus for heat treatment preparation of ADI material, applicable to an apparatus for heat treatment preparation of ADI material as described in claim 9, characterized in that, This method includes the following steps: Step 1: After the workpiece is heated in the heating furnace (4), start the driving motor (39). On the one hand, drive the rope-winding shaft (29) to rotate through the meshing drive of the driving gear (40) and the driven gear (41). On the other hand, drive the impeller (36) to rotate together through the tail shaft (35). Step 2: When the rope winding shaft (29) rotates, the reset draw rope (31) is released by the winding drum (30). At this time, under the elastic force of the reset spring (17), the transfer cart assembly (8) slides from one end close to the salt bath (5) towards the end close to the heating furnace (4). When the transfer cart assembly (8) slides to the gap between the high-temperature chute (10) and the low-temperature chute (11), since the number of transfer sliding shafts (12) is not less than three and the distance between the transfer sliding shafts (12) is greater than the distance between the high-temperature chute (10) and the low-temperature chute (11), when one transfer sliding shaft (12) is located in the gap between the high-temperature chute (10) and the low-temperature chute (11), the other two transfer sliding shafts (12) can still keep the transfer cart assembly (8) stable until the transfer cart assembly (8) slides to the end close to the heating furnace (4). Step 3: When the tail shaft (35) drives the impeller (36) to rotate, the impeller (36) generates a thrust on the liquid, thereby pushing the sliding cylinder (38) to slide on the sliding support (37). When the sliding cylinder (38) slides, it pulls the linkage draw rope (34), thereby causing the heat insulation curtain (23) to slide upward to leave a space for the passage of the transfer cart assembly (8). Step 4: Then, the workpiece is placed on the slide plate (13) by an external picking device and clamped and fixed by the clamping device (14). At this time, the driving motor (39) is stationary and the impeller (36) stops rotating. Therefore, the sliding cylinder (38) will slowly reset. When the heat insulation curtain (23) resets, it will temporarily press the reset spring (17) and the linkage draw rope (34). However, since this time is short, no obvious negative impact will be produced. Then, the driving motor (39) is driven in reverse, and at the same time, the rope winding shaft (29) and the tail shaft (35) are rotated in reverse. Step 5: When the rope winding shaft (29) rotates in reverse, the winding drum (30) winds and retracts the reset draw rope (31), and at the same time, overcomes the elastic force of the reset spring (17) to pull the transfer cart assembly (8) back to the end close to the salt bath (5). When the tail shaft (35) and the impeller (36) rotate in reverse, the sliding cylinder (38) slides in the reverse direction, but the pulling effect on the linkage draw rope (34) is the same as when sliding forward, and both can make the heat insulation curtain (23) slide upward to leave a space for the passage of the transfer cart assembly (8). Step 6: After the workpiece is transferred, the workpiece is transferred from the clamping device (14) to the lifting platform in the salt bath (5) by another external picking device, and then the workpiece is immersed in the salt solution by the lifting platform.

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