Intelligent strip heat treatment production line

Abstract

The invention provides an intelligent strip heat treatment production line which comprises a base, a rack and a controller, winding drum mechanisms are oppositely arranged on the base, a moving mechanism is arranged at the top of the rack, a heat treatment mechanism is connected to the bottom of the moving mechanism, the heat treatment mechanism comprises a heat preservation box, the heat preservation box is provided with a channel, and a strip is arranged in the channel in a sliding mode. An induction heating pipe is arranged in the heat preservation box, first hydraulic rods are oppositely arranged in the heat preservation box up and down and connected with a shell, a plurality of T-shaped sliding rods are arranged on the shell in a sliding mode, conical parts on the T-shaped sliding rods are matched with conical through holes in the shell, one end of each T-shaped sliding rod is sleeved with a first spiral spring, and the other end of each T-shaped sliding rod is connected with an electromagnet. The electromagnet is provided with an air spraying hole, and the air pump communicates with the inner cavity of the shell through a first air pipe and a second air pipe. The electromagnet drives the T-shaped sliding rod according to the change of the magnetic force after the strip is heated, the on-off of inert gas is controlled, the heat treatment temperature is automatically controlled, and the problems of overburning and surface oxidation of the strip are avoided.

Description

Technical Field

[0001] The present invention relates to the field of heat treatment technology, and in particular to an intelligent heat treatment production line for strips. Background Art

[0002] In the field of modern industrial manufacturing, strip products, especially magnetic strip products, are widely used in electronics, communications, aerospace and other fields due to their unique physical properties. The performance of magnetic strips is closely related to their microstructure and material composition, and heat treatment is an important means to regulate these properties. Traditional strip heat treatment processes usually involve steps such as heating, insulation and cooling, and the temperature and time parameters in these steps are precisely controlled to achieve the purpose of improving material properties. However, the structure of traditional heat treatment equipment is relatively simple, and it can often only achieve basic heating and insulation functions, and cannot meet the needs of high-precision control of the heat treatment process. Quenching process, as a special heat treatment method, is of great significance for the performance regulation of magnetic strips. Quenching usually involves heating the material above the critical temperature and then rapidly cooling it to cause a phase change inside the material, thereby improving the hardness, wear resistance and toughness of the material.

[0003] In the prior art, the traditional strip heat treatment production line uses a closed heating furnace for heat treatment. The heating furnace needs to be kept heated, resulting in high energy consumption of the production line, relatively slow strip temperature increase, and relatively low heat treatment efficiency. When high-frequency induction heating equipment is used, the temperature rises quickly and the energy consumption is low, but the temperature is not easy to control. The strip is prone to overburning and surface oxidation problems, which will cause the austenite grains of the strip to coarsen. After the heat treatment is completed, a coarse martensite structure is obtained, which increases the brittleness of the strip and is prone to cracking. Summary of the invention

[0004] In view of this, the present invention proposes an intelligent heat treatment production line for strips, which can judge the effect of austenite appearing during heat treatment of the strips according to the magnitude of the magnetic force detected in the strips, thereby improving the effect of heat treatment of the strips.

[0005] The technical solution of the present invention is achieved in this way:

[0006] A strip intelligent heat treatment production line comprises a base, a frame and a controller, wherein the base is provided with reel mechanisms relatively to each other, the reel mechanisms are respectively located at two ends of the base, the reel mechanism is provided with a strip, the frame is arranged at the top of the base, a moving mechanism is arranged at the top of the frame, a heat treatment mechanism is connected to the bottom of the moving mechanism, the heat treatment mechanism comprises a heat preservation box, the heat preservation box is provided with a channel, the channel runs through both sides of the heat preservation box, the strip is slidably arranged in the channel, an induction heating tube is arranged in the heat preservation box, the induction heating tube is located at the upper and lower sides of the strip, first hydraulic rods are relatively arranged in the heat preservation box, the telescopic ends of the first hydraulic rods are connected to a shell, a plurality of T-shaped sliding rods are slidably arranged on the shell, the T-shaped sliding rods are provided with a tapered portion, and the shell is close to one end of the strip A tapered through hole is provided on the inner wall, and the tapered portion and the tapered through hole cooperate with each other to seal the connection between the inside and outside of the shell, one end of the T-shaped slide bar is sleeved with a coil spring 1, and the other end passes through the tapered through hole to extend out of the side of the shell and is connected with an electromagnet, and an injection hole is provided on the electromagnet, one end of the coil spring 1 abuts against the top of the T-shaped slide bar, and the other end abuts against the top surface of the insulation box, and an air pump is provided on the top surface of the insulation box, and the air pump is connected to the inner cavity of the shell through air pipe 1 and air pipe 2 respectively, a flow valve is provided on the air pipe 1, and a temperature sensor is provided on the top of the cavity, and the temperature sensor monitors the temperature of the strip on both sides of the shell respectively, and the controller is arranged on the top surface of the frame and is electrically connected to the winding mechanism, the moving mechanism, the first hydraulic rod, the induction heating tube, the electromagnet, the temperature sensor, the flow valve and the air pump.

[0007] Preferably, the winding drum mechanism includes a second hydraulic rod, a U-shaped frame, a rotating shaft and a first motor, the second hydraulic rod is arranged on the top surface of the base, the telescopic end of the second hydraulic rod is connected to the U-shaped frame, the top two ends of the U-shaped frame are rotatably provided with rotating shafts, one end of the rotating shaft is rotatably connected to the U-shaped frame, and the other end passes through the U-shaped frame and is driven by the first motor.

[0008] Preferably, the moving mechanism includes a screw rod, a moving block, a second motor and a third hydraulic rod. The screw rod is rotatably arranged on the top of the frame. One end of the screw rod is rotatably connected to the frame, and the other end passes through the frame and is driven by the second motor. The second motor is arranged on the side of the frame. The moving block is arranged on the screw rod and is slidably connected to the frame. The third hydraulic rod is arranged on the bottom surface of the moving block, and its telescopic end is connected to the top surface of the insulation box.

[0009] Preferably, a sealing mechanism is further included, the sealing mechanism includes a fourth hydraulic rod, a slider, a scraper and two coil springs, the side wall of the channel is provided with a receiving groove, the receiving groove and the channel are perpendicular to each other, a fourth hydraulic rod is provided at the top of the receiving groove, the telescopic end of the fourth hydraulic rod is connected to the slider, a scraper is provided at the bottom of the slider, and two coil springs are provided at the bottom of the receiving groove, one end of the two coil springs is connected to the receiving groove and the other end is connected to the slider, and a scraper is provided on the top of the slider.

[0010] Preferably, a distance sensor is further provided on the side of the shell, and the distance sensor detects the distance between the electromagnet and the strip, and the distance sensor is electrically connected to the controller.

[0011] Preferably, it also includes a limiting mechanism, which includes a fifth hydraulic rod, a U-shaped bracket and a transmission roller. The fifth hydraulic rod is arranged on the top surface of the base and is located on one side of the insulation box. A U-shaped bracket is provided at the telescopic end of the fifth hydraulic rod. A rotating roller is relatively provided on the top of the U-shaped bracket, and the transmission roller abuts against the bottom surface of the strip.

[0012] Preferably, it also includes a camera, an AI recognition module and an optimization module, wherein the camera is arranged on a U-shaped bracket, and the camera takes a metallographic picture of the strip and transmits the data to the AI ​​recognition module, and the AI ​​recognition module identifies the ratio of austenite and martensite, and then takes the maximum austenite ratio as the objective function, and uses the optimization module to optimize the induction heating tube power, strip transmission speed, and gas flow parameters, and uses the data after each heat treatment for feedback and continuous iteration to obtain the optimized solution of the induction heating tube power, strip transmission speed, and helium flow parameters.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] ① The electromagnet and the strip are set to drive the T-shaped slide bar according to the magnetic force after the strip is heated, control the on and off of the inert gas, and automatically control the heat treatment temperature to avoid overburning and surface oxidation of the strip. When using high-frequency induction heating equipment, the temperature rises quickly and the energy consumption is low, but the temperature is not easy to control. The strip is prone to overburning and surface oxidation, which will cause the austenite grains of the strip to coarsen. After the heat treatment is completed, a coarse martensite structure is obtained, which increases the brittleness of the strip and is prone to cracking;

[0015] ② A distance sensor is provided. When the induction heating tube is started to heat the strip, the first hydraulic rod is started first. The telescopic end of the first hydraulic rod is extended to drive the shell to approach the upper and lower sides of the strip. The distance sensor is used to detect the distance between the electromagnet and the strip. When the distance between the electromagnet and the strip reaches a preset value, the first hydraulic rod is stopped, and then the electromagnet is started. The electromagnet generates magnetic force, and the electromagnet is subjected to the reaction force of the strip. The reaction force is greater than the preload force of the coil spring, thereby driving the T-shaped slide bar to move to one side of the strip. At this time, the coil spring is compressed, and the tapered portion on the T-shaped slide bar presses the tapered through hole on the shell, and the cavity is a closed space. At this time, there is a certain gap between the electromagnet and the strip. When the strip moves with a certain offset, it does not affect the tapered portion of the T-shaped slide bar from fitting on the tapered through hole, and the cavity remains sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a strip intelligent heat treatment production line of the present invention;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of a strip intelligent heat treatment production line of the present invention;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0022] Figure 6 It is the electric control principle diagram of the present invention;

[0023] Figure numerals: 1, base; 2, first hydraulic rod; 3, U-shaped frame; 4, rotating shaft; 5, first motor; 6, strip; 7, frame; 8, moving block; 9, second hydraulic rod; 10, air pump; 11, air pipe 1; 12, flow valve; 13, insulation box; 14, induction heating tube; 15, shell; 16, third hydraulic rod; 17, channel; 18, rotating roller; 19, bracket; 20, controller; 21, camera; 22, first Four hydraulic rods; 23. Second motor; 24. Screw rod; 25. Sliding rod; 26. Distance sensor; 27. Temperature sensor; 28. Conical portion; 29. ​​Conical through hole; 30. Electromagnet; 31. Jet hole; 32. Cavity; 33. Air pipe II; 34. Coil spring I; 35. Accommodating chamber; 36. Fifth hydraulic rod; 37. Sliding block; 38. Scraper; 39. Coil spring II; 40. AI recognition module; 41. Optimization module. DETAILED DESCRIPTION

[0024] In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0025] Embodiment 1:

[0026] See also Figures 1 to 5The present invention provides an intelligent heat treatment production line for strip 6, comprising a base 1, a frame 7 and a controller 20. The base 1 is provided with reel mechanisms, which are respectively located at both ends of the base 1. The reel mechanism is provided with a strip 6. The frame 7 is provided at the top of the base 1. A moving mechanism is provided at the top of the frame 7. A heat treatment mechanism is connected to the bottom of the moving mechanism. The heat treatment mechanism comprises an insulation box 13. The insulation box 13 is provided with a channel 17. The channel 17 runs through both sides of the insulation box 13. The strip 6 is slidably arranged in the channel 17, the induction heating tube 14 is arranged in the heat preservation box 13, and the induction heating tube 14 is located at the upper and lower sides of the strip 6. The first hydraulic rod 2 is arranged in the heat preservation box 13 in an upper and lower manner, and the telescopic ends of the first hydraulic rod 2 are connected to the shell 15. A plurality of T-shaped slide bars 25 are slidably arranged on the shell 15, and a tapered portion 28 is arranged on the T-shaped slide bar 25. A tapered through hole 29 is arranged on the inner wall of the shell 15 near one end of the strip 6, and the tapered portion 28 and the tapered through hole 29 cooperate with each other for sealing The inside and outside of the sealed shell 15 are connected. One end of the T-shaped slide bar 25 is sleeved with a coil spring 1 34, and the other end passes through the tapered through hole 29 to extend out of the side of the shell 15 and is connected to an electromagnet 30. The electromagnet 30 is provided with an air jet hole 31, and the gas can be evenly sprayed on the strip 6 through the air jet hole 31. One end of the coil spring 1 34 abuts against the top of the T-shaped slide bar 25, and the other end abuts against the top surface of the insulation box 13. The top surface of the insulation box 13 is provided with an air pump 10, and the air pump 10 is connected to the air pipe 11 and the air pipe 2 33 respectively. In the cavity 32 in the shell 15, a flow valve 12 is provided on the air pipe 11, which has the function of controlling the flow. A temperature sensor 27 is provided on the top of the cavity 32, and the temperature sensor 27 monitors the temperature of the strip 6 on both sides of the shell 15 respectively. The controller 20 is arranged on the top surface of the frame 7 and is electrically connected to the winding mechanism, the moving mechanism, the first hydraulic rod 2, the induction heating tube 14, the electromagnet 30, the temperature sensor 27, the flow valve 12 and the air pump 10. The controller 20 adopts a low-power microprocessor model STM32-L0.

[0027] When the intelligent heat treatment production line of strip 6 is running, firstly, the strip 6 is set on a reel mechanism at one end, and the strip 6 is connected to the reel mechanism at the other end after passing through the channel 17. The reel mechanism sets the strip 6 horizontally, releases the strip 6 at one end of the reel mechanism, and stores the strip 6 at the other end of the reel mechanism. The moving mechanism is used to move the heat preservation box 13 to the position where the machine needs to be heat treated, and start the first hydraulic rod 2. The extension of the telescopic end of the first hydraulic rod 2 drives the shell 15 to approach the middle strip 6 respectively. When the distance between the electromagnet 30 and the top and bottom surfaces of the strip 6 reaches the preset value, it stops, and then starts the flow valve 12 and the air pump 10. The air pump 10 passes helium through the air pipe 11 to The air pipe 2 33 is filled into the shell 15 and flows into the heat preservation box 13 from the tapered through hole 29. When the flow valve 12 reaches the preset value, the helium fills the entire heat preservation box 13 and squeezes the oxygen in the heat preservation box 13 out of the heat preservation box 13 to avoid surface oxidation of the strip 6 during the heat treatment process. Then the electromagnet 30 is started. The electromagnet 30 generates an electromagnetic force and attracts the strip 6 in the middle. The electromagnet 30 is subjected to the reaction force of the strip 6, and the reaction force is greater than the preload force of the coil spring, thereby driving the T-shaped slide bar 25 to move to one side of the strip 6. At this time, the coil spring 1 34 is compressed, and the tapered portion 28 on the T-shaped slide bar 25 presses the tapered through hole 29 on the shell 15. The cavity 32 is a closed space, which seals the helium, stops replenishing the incubator 13, and then starts the induction heating tube 14. The induction heating tube 14 generates a high-frequency magnetic field through a high-frequency current, so that eddy currents are generated inside the strip 6, causing the temperature of the strip 6 to rise rapidly. As the temperature of the strip 6 rises, the magnetism of the strip 6 will continue to decrease. When the temperature sensor 27 on the side of the shell 15 close to the induction heating tube 14 detects that the temperature of the strip 6 has reached the heat treatment temperature, the magnetism of the strip 6 reaches the minimum value at this time, and the moving mechanism is started. The moving mechanism drives the incubator 13 to move, so that the induction heating tube 14 moves slowly, and the reaction force of the electromagnet 30 on the strip 6 is smaller than the compression of the coil spring. The spiral spring drives the T-shaped slide bar 25 to move away from one side of the strip 6, and the tapered portion 28 on the T-shaped slide bar 25 and the tapered through hole 29 on the shell 15 are separated by a certain distance, so that helium continuously flows out from the shell 15 through the tapered through hole 29, and the ejected helium gas flow cools down both sides of the strip 6. The temperature sensor 27 located on one side of the shell 15 detects the temperature of the strip 6 to adjust the moving speed of the moving mechanism, so that the heating time of the strip 6 meets the requirements of the heat treatment curve, improves the efficiency of the heat treatment, avoids overburning of the strip 6 and causes the coarsening of the austenite grains of the strip 6, and obtains a coarse martensite structure after the heat treatment is completed, which increases the brittleness of the strip 6.

[0028] Preferably, the winding drum mechanism includes a second hydraulic rod 9, a U-shaped frame 3, a rotating shaft 4 and a first motor 5. The second hydraulic rod 9 is arranged on the top surface of the base 1, and the telescopic end of the second hydraulic rod 9 is connected to the U-shaped frame 3. The two ends of the top of the U-shaped frame 3 are rotatably provided with a rotating shaft 4. One end of the rotating shaft 4 is rotatably connected to the U-shaped frame 3, and the other end passes through the U-shaped frame 3 and is driven by the first motor 5. The first motor 5 adopts a stepping motor that can accurately control the rotation angle.

[0029] The strip 6 is in the form of a coil and is arranged on a reel mechanism at one end, and the other end of the strip 6 is connected to the reel mechanism at the other end of the frame 7. When the intelligent heat treatment production line of the strip 6 is running, the first motor 5 on the reel mechanism at one end is started, and the rotation of the first motor 5 drives the rotating shaft 4 to rotate. The rotation of the rotating shaft 4 can release the strip 6, and the reel mechanism at the other end stores the strip 6. At the same time, the second hydraulic rod 9 is started, and the telescopic end of the second hydraulic rod 9 is extended to drive the U-shaped frame 3 to rise, so that the strip 6 is in a horizontal state, which is conducive to the heat treatment operation of the strip 6.

[0030] Preferably, the moving mechanism includes a screw rod 24, a moving block 8, a second motor 23 and a third hydraulic rod 16, the screw rod 24 is rotatably arranged on the top of the frame 7, one end of the screw rod 24 is rotatably connected to the frame 7, and the other end passes through the frame 7 and is driven by the second motor 23, the second motor 23 is arranged on the side of the frame 7, and the second motor 23 adopts a stepping motor that can accurately control the rotation angle, the moving block 8 is arranged on the screw rod 24 and is slidably connected to the frame 7, the third hydraulic rod 16 is arranged on the bottom surface of the moving block 8, and its telescopic end is connected to the top surface of the insulation box 13.

[0031] When the intelligent heat treatment production line for the strip 6 is running, the second motor 23 is started, and the rotation of the second motor 23 drives the screw rod 24 to rotate. The moving block 8 is screwed to the screw rod 24, and the rotation of the screw rod 24 drives the moving block 8 to move along the screw rod 24. The movement of the moving block 8 drives the third hydraulic rod 16 to move. At the same time, the third hydraulic rod 16 is started, and the telescopic end of the third hydraulic rod 16 is extended, so as to drive the insulation box 13 to move to the position of the strip 6 that needs to be heat treated.

[0032] Preferably, a sealing mechanism is further included, which includes a fourth hydraulic rod 22, a slider 37, a scraper 38 and a second coil spring 39. The side wall of the channel 17 is provided with a receiving groove, and the receiving groove and the channel 17 are perpendicular to each other. The top of the receiving groove is provided with a fourth hydraulic rod 22, and the telescopic end of the fourth hydraulic rod 22 is connected to the slider 37. The bottom of the slider 37 is provided with a scraper 38. The bottom of the receiving groove is provided with a second coil spring 39, one end of the second coil spring 39 is connected to the receiving groove and the other end is connected to the slider 37, and the top of the slider 37 is provided with a scraper 38.

[0033] When the intelligent heat treatment production line of the strip 6 is running, first, the strip groove is passed through the channel 17, and then the fourth hydraulic rod 22 is started. The extension of the telescopic end of the fourth hydraulic rod 22 drives the slider 37 to move toward the side of the strip 6, and the slider 37 slides downward to drive the scraper 38 to move downward and abut against the top surface of the strip 6. At this time, the spiral spring 2 39 supports the slider 37, and the scraper 38 set on the top surface of the slider 37 abuts against the bottom surface of the strip 6, thereby keeping the cavity 32 as a closed space, and then start the flow valve 12, the air pump 10 fills the inert gas helium into the cavity 32, and then closes the sealing mechanism of the side wall of the insulation box 13, so that when the induction heating tube 14 heats the strip 6, the strip 6 is prevented from reacting with oxygen to produce oxidation; when the strip 6 is moving, the upper and lower surfaces of the strip 6 can be cleaned by the scraper 38, which is conducive to keeping the surface of the strip 6 clean and flat.

[0034] Preferably, a distance sensor 26 is further provided on the side of the housing 15 , and the distance sensor 26 detects the distance between the electromagnet 30 and the strip 6 . The distance sensor 26 is electrically connected to the controller 20 .

[0035] When the intelligent heat treatment production line of the strip 6 is running, the strip 6 slides and passes through the through hole. When the induction heating tube 14 is started to heat the strip 6, the first hydraulic rod 2 is started first. The telescopic end of the first hydraulic rod 2 is extended to drive the shell 15 to approach the upper and lower sides of the strip 6. The distance sensor 26 is used to detect the distance between the electromagnet 30 and the strip 6. When the distance between the electromagnet 30 and the strip 6 reaches a preset value, the first hydraulic rod 2 is stopped, and then the electromagnet 30 is started. The electromagnet 30 generates a magnetic force, and the electromagnet 3 0 is subjected to the reaction force of the strip 6, and the reaction force is greater than the preload force of the coil spring, thereby driving the T-shaped slide bar 25 to move toward one side of the strip 6. At this time, the coil spring 34 is compressed, and the tapered portion 28 on the T-shaped slide bar 25 presses the tapered through hole 29 on the housing 15. The cavity 32 is a closed space. At this time, there is a certain gap between the electromagnet 30 and the strip 6. When the strip 6 moves and deflects a certain amount, it does not affect the tapered portion 28 of the T-shaped slide bar 25 from fitting on the tapered through hole 29, and the cavity 32 remains sealed.

[0036] Preferably, a limiting mechanism is also included, which includes a fifth hydraulic rod 36, a U-shaped bracket 19 and a transmission roller. The fifth hydraulic rod 36 is arranged on the top surface of the base 1 and is located on one side of the insulation box 13. The telescopic end of the fifth hydraulic rod 36 is provided with a U-shaped bracket 19. A rotating roller 18 is relatively provided on the top of the U-shaped bracket 19, and the transmission roller abuts against the bottom surface of the strip 6.

[0037] When the strip 6 has completed the heat treatment, the first motor 5 is started. The rotation of the first motor 5 drives the rotating shaft 4 to rotate. The reel mechanism at one end releases the strip 6, and the reel mechanism at the other end collects the strip 6, driving the strip 6 to move to one end. At this time, the fourth hydraulic rod 22 is started. The telescopic end of the fourth hydraulic rod 22 extends and drives the U-shaped bracket 19 to rise. The rising of the U-shaped bracket 19 drives the rotating roller 18 to rise. The rotating roller 18 abuts against the strip 6, which is beneficial to limit the height of the strip 6. The strip 6 remains in a horizontal state for movement.

[0038] Embodiment 2:

[0039] See also Figure 6 , which is different from the first embodiment in that:

[0040] Preferably, it also includes an AI recognition module 40, an optimization module 41 and a camera 21, wherein the camera 21 is arranged on a U-shaped bracket 19, and the rotating roller 18 is used to limit the position of the strip 6 to avoid collision between the strip 6 and the camera 21. The camera 21 takes a metallographic picture of the strip 6 and transmits the data to the AI ​​recognition module 40. The AI ​​recognition module 40 identifies the ratio of austenite and martensite, and then takes the maximum austenite ratio as the objective function, and uses the optimization module 41 to optimize the power of the induction heating tube 14, the transmission speed of the strip 6, and the gas flow parameters. The data after each heat treatment is fed back and continuously iterated to obtain the optimized solution of the power of the induction heating tube 14, the transmission speed of the strip 6, and the helium flow parameters.

[0041] AI can automatically identify and calculate the specific ratio of austenite and martensite in the image. This step is crucial for the subsequent optimization process because it provides real-time feedback, allowing the system to understand the impact of the current heat treatment process on the microstructure of the strip 6. After obtaining the austenite and martensite ratio data provided by the AI ​​recognition module 40, the optimization module 41 starts working, with the goal of maximizing the ratio of austenite, because a higher austenite content can improve the toughness and corrosion resistance of certain materials. In order to achieve this goal, the optimization module 41 uses mathematical algorithms (such as genetic algorithms, gradient descent methods, etc.) to adjust parameters such as the power of the induction heating tube 14, the transmission speed of the strip 6, and the helium flow rate. This adjustment is based on historical data and real-time feedback to ensure that each step of adjustment can be made in a better direction. After each heat treatment, the AI ​​recognition module 40 will update the austenite and martensite ratio data based on the newly taken metallographic pictures, and then the optimization module 41 will adjust the heat treatment parameters based on these data. This process will be repeated until the preset optimization goal is reached or the convergence condition is reached, that is, the effect of parameter adjustment on the result is no longer significant.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A strip intelligent heat treatment production line, characterized in that: The invention comprises a base, a frame and a controller, wherein a reel mechanism is relatively arranged on the base, the reel mechanism is respectively located at two ends of the base, a strip is arranged on the reel mechanism, the frame is arranged on the top of the base, a moving mechanism is arranged on the top of the frame, a heat treatment mechanism is connected to the bottom of the moving mechanism, the heat treatment mechanism comprises a heat preservation box, the heat preservation box is provided with a channel, the channel runs through both sides of the heat preservation box, the strip is slidably arranged in the channel, an induction heating tube is arranged in the heat preservation box, the induction heating tube is located at the upper and lower sides of the strip, a first hydraulic rod is relatively arranged in the heat preservation box, the telescopic ends of the first hydraulic rod are connected to a shell, a plurality of T-shaped sliding rods are slidably arranged on the shell, the T-shaped sliding rods are provided with a tapered portion, and a A conical through hole, the conical portion and the conical through hole cooperate with each other to seal the connection between the inside and outside of the shell, one end of the T-shaped slide bar is sleeved with a coil spring 1, and the other end passes through the conical through hole to extend out of the side of the shell and is connected to an electromagnet, and the electromagnet is provided with an injection hole, one end of the coil spring 1 abuts against the top of the T-shaped slide bar, and the other end abuts against the top surface of the insulation box, the top surface of the insulation box is provided with an air pump, the air pump is connected to the inner cavity of the shell through air pipe 1 and air pipe 2 respectively, the air pipe 1 is provided with a flow valve, the top of the cavity is provided with a temperature sensor, the temperature sensor respectively monitors the temperature of the strip on both sides of the shell, the controller is arranged on the top surface of the frame and is electrically connected to the winding mechanism, the moving mechanism, the first hydraulic rod, the induction heating tube, the electromagnet, the temperature sensor, the flow valve and the air pump.

2. The intelligent strip heat treatment production line according to claim 1 is characterized in that: The reel mechanism includes a second hydraulic rod, a U-shaped frame, a rotating shaft and a first motor. The second hydraulic rod is arranged on the top surface of the base. The telescopic end of the second hydraulic rod is connected to the U-shaped frame. Rotating shafts are rotatably provided at both ends of the top of the U-shaped frame. One end of the rotating shaft is rotatably connected to the U-shaped frame, and the other end passes through the U-shaped frame and is driven by the first motor.

3. The intelligent strip heat treatment production line according to claim 1 is characterized in that: The moving mechanism includes a screw rod, a moving block, a second motor and a third hydraulic rod. The screw rod is rotatably arranged on the top of the frame. One end of the screw rod is rotatably connected to the frame, and the other end passes through the frame and is driven by the second motor. The second motor is arranged on the side of the frame. The moving block is arranged on the screw rod and is slidably connected to the frame. The third hydraulic rod is arranged on the bottom surface of the moving block, and its telescopic end is connected to the top surface of the insulation box.

4. The intelligent strip heat treatment production line according to claim 1, characterized in that: It also includes a sealing mechanism, which includes a fourth hydraulic rod, a slider, a scraper and two coil springs. The side wall of the channel is provided with a receiving groove, and the receiving groove and the channel are perpendicular to each other. A fourth hydraulic rod is provided on the top of the receiving groove, and a slider is connected to the telescopic end of the fourth hydraulic rod. A scraper is provided at the bottom of the slider. Two coil springs are provided at the bottom of the receiving groove, one end of the two coil springs is connected to the receiving groove and the other end is connected to the slider, and a scraper is provided on the top of the slider.

5. The intelligent strip heat treatment production line according to claim 1 is characterized in that: A distance sensor is also provided on the side of the shell, and the distance sensor detects the distance between the electromagnet and the strip, and the distance sensor is electrically connected to the controller.

6. The intelligent strip heat treatment production line according to claim 1, characterized in that: It also includes a limiting mechanism, which includes a fifth hydraulic rod, a U-shaped bracket and a transmission roller. The fifth hydraulic rod is arranged on the top surface of the base and is located on one side of the insulation box. The telescopic end of the fifth hydraulic rod is provided with a U-shaped bracket. A rotating roller is relatively provided on the top of the U-shaped bracket. The transmission roller abuts against the bottom surface of the strip.

7. The intelligent strip heat treatment production line according to any one of claims 1 to 6, characterized in that: The system also includes a camera, an AI recognition module and an optimization module. The camera is arranged on a U-shaped bracket. The camera takes a metallographic picture of the strip and transmits the data to the AI ​​recognition module. The AI ​​recognition module identifies the ratio of austenite to martensite, and then takes the maximum austenite ratio as the objective function. The optimization module is used to optimize the induction heating tube power, strip transmission speed, and gas flow parameters. The data after each heat treatment is fed back and continuously iterated to obtain the optimized solution of the induction heating tube power, strip transmission speed, and helium flow parameters.

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