High-frequency annealing device and method for stainless steel band

Abstract

The invention relates to the technical field of stainless steel band production, in particular to a stainless steel band high-frequency annealing device and an annealing method.The stainless steel band high-frequency annealing device comprises an annealing base, a front supporting frame, a rear supporting frame, a feeding roller, a traction assembly, a heating assembly, a leveling assembly and the like; a heating assembly is arranged on the annealing base and used for heating a stainless steel coil passing through the annealing base, a traction assembly is arranged between the front supporting frame and the rear supporting frame and used for pulling the end of the stainless steel coil to pass through the heating assembly, and leveling assemblies are arranged on the front supporting frame and the heating assembly and used for guaranteeing that the stainless steel coil passing through the heating assembly is flat. The current passing through the induction coil is adjusted through the power box, so that the heating power when the stainless steel coil passes through is changed, the applicability of the device is improved, annealing is completed through the magnetic field principle, electric energy is more environmentally friendly, and the purposes of high efficiency and stability are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel strip production, and in particular to a stainless steel strip high-frequency annealing device and an annealing method. Background Art

[0002] As an important metal material, stainless steel strip has been widely used in many fields such as petroleum, chemical industry, nuclear power, shipbuilding, mechanical equipment and household goods due to its excellent corrosion resistance and good mechanical properties. In the production process of stainless steel strip, in order to improve its physical properties, eliminate internal stress, improve processing performance and surface quality, annealing is often required. Annealing is a heat treatment process that heats to a certain temperature, keeps the temperature, and then slowly cools to adjust the material structure and performance.

[0003] At present, the annealing treatment of stainless steel strip mainly adopts the traditional long furnace annealing device, which usually uses fossil fuels such as coal and natural gas as heat sources. During the annealing process, the stainless steel strip is fed into the long furnace and heated by the flame or heat radiation in the furnace. After reaching the temperature required for annealing, it is kept warm for a period of time and then slowly cooled to room temperature. Although this annealing method is technically mature, it has many limitations. First, the long furnace occupies a large area, requires a large production space, and it is impossible to observe the stainless steel coil; secondly, the use of fossil fuels as a heat source not only consumes a lot of energy, but also produces a large amount of greenhouse gases and pollutants, which has adverse effects on the environment; in addition, due to the uneven temperature distribution in the furnace, the annealing effect of the stainless steel strip may be inconsistent, affecting product quality.

[0004] Not only is the temperature uneven, but the annealing temperature cannot be adjusted for stainless steel strips of different thicknesses. The final annealing effects are different on the same path. Therefore, the development of a high-frequency annealing device and annealing method for stainless steel strips that is efficient, energy-saving, environmentally friendly, and has stable annealing effects is of great significance for improving the quality of stainless steel strip products, reducing production costs, and promoting green and low-carbon development. Summary of the invention

[0005] In order to overcome the shortcomings of low efficiency, instability and inability to adjust, the present invention provides a high-frequency annealing device and annealing method for stainless steel strips which are efficient, stable and have good applicability.

[0006] A high-frequency annealing device for stainless steel strip comprises an annealing base, a front support frame, a rear support frame, a feed roller, a traction assembly, a heating assembly and a leveling assembly. The front end of the annealing base is connected to the front support frame, the feed roller is rotatably connected to the front support frame, the rear end of the annealing base is connected to the rear support frame, a winding assembly is arranged at the rear end of the annealing base for winding up the annealed stainless steel coil, the annealing base is provided with a heating assembly for heating the stainless steel coil passing therethrough, a traction assembly is arranged between the front support frame and the rear support frame for traction the end of the stainless steel coil through the heating assembly, and a leveling assembly is arranged on the front support frame and the heating assembly for ensuring that the stainless steel coil passing through the heating assembly is flat.

[0007] In one of the embodiments, the traction assembly includes an insulating guide rail, a movable frame, insulating wheels, a lower clamp, an upper clamp, a locking block and a handle. The two ends of the insulating guide rail are respectively connected to the front support frame and the rear support frame, and are located on both sides of the front support frame and the rear support frame. The left and right sides of the movable frame are rotatably connected to multiple insulating wheels, and the insulating wheels are connected to the insulating guide rails in rolling contact. The middle of the movable frame is connected to the lower clamp, and the rear end of the lower clamp is rotatably connected to the upper clamp, a matching hole is opened in the middle of the lower clamp and the upper clamp, and the locking block is clamped in the middle of the lower clamp and the upper clamp. The front and rear ends of the movable frame are connected to handles, and pull ropes are tied to the handles.

[0008] In one embodiment, the heating assembly includes a power box, a support box, a support rod and an induction coil. The power box and the support box are respectively connected to the middle of the left and right sides of the annealing base. The support rods are connected to the opposite surfaces of the power box and the support box. The power box is connected to the induction coil, and the induction coil is connected to multiple support rods.

[0009] In one embodiment, the leveling assembly includes a guide roller, a connecting sleeve, an extrusion roller and an elastic member. The two guide rollers are rotatably connected to the front support frame and the heating assembly respectively. The two ends of the guide roller connected to the front support frame are rotatably connected with the connecting sleeve. The connecting sleeve is fixedly connected to the front support frame. The extrusion roller is slidably connected between the two connecting sleeves. The connecting sleeve is provided with an elastic member. One end of the elastic member is connected to the connecting sleeve, and the other end is connected to the extrusion roller.

[0010] In one of the embodiments, it also includes a cleaning component, which includes an incomplete gear, a cleaning roller, a transmission gear and a first gear group. One end of the guide roller connected to the front support frame is connected to the incomplete gear. Two cleaning rollers are rotatably connected to the front support frame. The ends of the two cleaning rollers are commonly connected to the first gear group. The transmission gear is rotatably connected to the outer side of the front support frame, and the transmission gear is respectively meshed with the incomplete gear and the first gear group.

[0011] In one of the embodiments, it also includes a servo motor, a discharge roller and a second gear set. The servo motor is installed on the outside of the rear support frame. The two discharge rollers are rotatably connected to the rear support frame. One end of the two discharge rollers is connected to the second gear set for synchronous rotation. One end of one of the discharge rollers is connected to the output shaft of the servo motor.

[0012] In one of the embodiments, it also includes a frame, a first pulley group, a wind roller, a second pulley group, a guide roller, a filter screen and a third gear group. The two frames are symmetrically connected to the rear support frame up and down, both ends of the wind roller pass through the frame and are rotatably connected to the rear support frame, the wind rollers are arranged in pairs longitudinally, the rear end of the frame is connected to the guide roller, the side of the two frames separated from each other is connected to the filter screen, the first pulley group is connected between one end of the top wind roller at the front end and the discharge roller for transmitting power, and the other end is connected to the bottom wind roller with a third gear group, and the second pulley group is connected between the wind rollers adjacent to the front and rear positions for synchronous rotation between the front and rear wind rollers.

[0013] In one of the embodiments, an annealing method of a high-frequency annealing device for stainless steel strip specifically includes the following steps: S1, placing a stainless steel coil on a feed roller, or passing the produced stainless steel strip between the feed rollers, passing one end of the stainless steel strip through a guide roller and an extrusion roller, and placing it on a lower clamping plate, then lowering an upper clamping plate, and fixing the upper clamping plate and the lower clamping plate with a locking block; S2, turning on the power box, and pulling the pull rope tied to the rear end of the movable frame backward; S3, removing the locking block, and pulling one end of the stainless steel strip backward, and connecting it to the winding assembly; S4, pulling the pull rope at the front end of the movable frame, the movable frame moves to the front end, and then pulling the pull rope at the rear end, the movable frame supports the other end of the stainless steel strip through the induction coil.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The traction components made of non-conductor materials are used to assist the movement of the two ends of the stainless steel belt, which will not cause waste of the stainless steel coil. The current of the induction coil passing through is adjusted by the power box, thereby changing the power of heat generated when the stainless steel coil passes through, improving the applicability of the device, and using the magnetic field principle to complete annealing, using electricity is more environmentally friendly, and achieves the purpose of high efficiency and stability.

[0016] 2. Cleaning the stainless steel strip with a cleaning roller can prevent debris from burning and protect the device. The discharging roller assists the stainless steel coil in discharging. The stainless steel strip maintains stable movement. The cooling time of the annealed stainless steel strip is adjusted by the rotating wind roller, thereby ensuring that the stainless steel strip has good performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the connection structure of the traction component, the heating component and the leveling component of the present invention.

[0019] Figure 3 It is a schematic diagram of the component structure of the traction assembly of the present invention.

[0020] Figure 4 It is a top view of a part of the structure of the present invention.

[0021] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure 6 It is a schematic diagram of the connection relationship of the cleaning components of the present invention.

[0023] Figure 7 It is a schematic diagram of the connection structure between the incomplete gear and the transmission gear of the present invention.

[0024] Figure 8 It is a schematic diagram of the connection structure of the servo motor, the discharge roller and the first pulley group of the present invention.

[0025] Fig. 9 It is a schematic diagram of the connection structure of the frame, the wind roller and the second pulley group of the present invention.

[0026] In the accompanying drawings: 1-annealing base, 11-front support frame, 12-rear support frame, 13-feed roller, 2-traction assembly, 21-insulating guide rail, 22-moving frame, 23-insulating wheel, 24-lower clamping plate, 25-upper clamping plate, 26-locking block, 27-handle, 3-heating assembly, 31-power box, 32-support box, 33-support rod, 34-induction coil, 4-leveling assembly, 41-guide roller, 42-connecting sleeve, 43-squeezing roller, 44-elastic member, 5-cleaning assembly, 51-incomplete gear, 52-cleaning roller, 53-transmission gear, 54-first gear set, 6-servo motor, 61-discharge roller, 62-second gear set, 7-frame, 71-first pulley set, 72-wind roller, 73-second pulley set, 74-guide roller, 75-filter screen, 76-third gear set. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0028] Embodiment: A high frequency annealing device for stainless steel strip, such as Figure 1-Figure 5As shown, it includes an annealing base 1, a front support frame 11, a rear support frame 12, a feed roller 13, a traction assembly 2, a heating assembly 3 and a leveling assembly 4. The front end of the annealing base 1 is connected to the front support frame 11, and the feed roller 13 is rotatably connected to the front support frame 11. The rear end of the annealing base 1 is connected to the rear support frame 12. The rear end of the annealing base 1 is provided with a winding assembly for winding the annealed stainless steel coil. The annealing base 1 is provided with a heating assembly 3 for heating the stainless steel coil passing through. A traction assembly 2 is provided between the front support frame 11 and the rear support frame 12 for traction of the stainless steel coil. The end of the stainless steel coil passes through the heating component 3, and a leveling component 4 is provided on the front support frame 11 and the heating component 3 to ensure that the stainless steel coil passing through the heating component 3 is flat. The stainless steel strip is passed between the feed rollers 13, one end of the stainless steel strip is passed through the leveling component 4, and is fixed by the traction component 2, and then the heating component 3 is turned on, and then the stainless steel strip is continued to be pulled by the traction component 2 so that it is completely annealed through the heating component 3. After the annealing is completed, the stainless steel strip is removed from the traction component 2, and the annealed stainless steel coil is reeled by the reeling component.

[0029] like Figure 2 , Figure 3 and Figure 5 As shown, the traction assembly 2 includes an insulating guide rail 21, a moving frame 22, an insulating wheel 23, a lower clamping plate 24, an upper clamping plate 25, a locking block 26 and a handle 27. The two ends of the insulating guide rail 21 are respectively connected to the front support frame 11 and the rear support frame 12, and are located on both sides of the front support frame 11 and the rear support frame 12. The left and right sides of the moving frame 22 are rotatably connected with multiple insulating wheels 23. The insulating wheels 23 are connected to the insulating guide rail 21 in rolling contact. The middle of the moving frame 22 is connected with a lower clamping plate 24, and the rear end of the lower clamping plate 24 is rotatably connected with an upper clamping plate 25. A matching hole is opened in the middle of the lower clamping plate 24 and the upper clamping plate 25. The locking block 26 is clamped in the middle of the lower clamping plate 24 and the upper clamping plate 25. The lower surface of the upper clamping plate 25 is provided with transverse stripes, which can increase The friction between the upper clamping plate 25 and the stainless steel belt, the front and rear ends of the movable frame 22 are connected to handles 27, and a pull rope is tied to the handle 27. The pull rope tied to the handle 27 is made of non-conductive material. The lower clamping plate 24 and the upper clamping plate 25 clamp one end of the stainless steel belt, and after passing through the heating component 3, the fixation is released by the locking block 26, which facilitates the stainless steel belt to pass through the heating component 3. Moreover, the insulating guide rail 21, the movable frame 22 and the insulating wheel 23 are all made of non-conductive materials. When passing through the induction coil 34 of the heating component 3, no induced current or electromagnetic reaction will be generated. In addition, the lower clamping plate 24 and the upper clamping plate 25 are made of ceramics or similar materials, which have high temperature resistance. Stripes are provided on the upper clamping plate 25 to ensure the clamping effect of the stainless steel belt.

[0030] like Figure 2 and Figure 4As shown, the heating assembly 3 includes a power supply box 31, a support box 32, a support rod 33 and an induction coil 34. The power supply box 31 and the support box 32 are respectively connected to the middle of the left and right sides of the annealing base 1, and the opposite surfaces of the power supply box 31 and the support box 32 are connected with the support rod 33. The power supply box 31 is connected with the induction coil 34, and the induction coil 34 is connected to multiple support rods 33. The power supply box 31 converts the AC power into a higher frequency AC power and transmits it to the induction coil 34, which will generate an electromagnetic field in the coil, and use the magnetic field principle to heat the metal workpiece. The power supply box 31 can adjust the current passing through the induction coil 34 according to basic information such as the thickness and width of the stainless steel strip, so as to ensure the annealing effect.

[0031] like Figure 2 , Figure 4 and Figure 5 As shown, the leveling assembly 4 includes a guide roller 41, a connecting sleeve 42, an extrusion roller 43 and an elastic member 44. The two guide rollers 41 are rotatably connected to the front support frame 11 and the heating assembly 3 respectively. The two ends of the guide roller 41 connected to the front support frame 11 are rotatably connected with the connecting sleeve 42. The connecting sleeve 42 is fixedly connected to the front support frame 11. The extrusion roller 43 is slidably connected between the two connecting sleeves 42 through a sliding seat. An elastic member 44 is sleeved on the connecting sleeve 42. One end of the elastic member 44 is connected to the connecting sleeve 42, and the other end is connected to the sliding seat on the extrusion roller 43. When the stainless steel strip enters and leaves the induction coil 34, the guide roller 41 guides the direction of the stainless steel strip to ensure that the stainless steel strip can pass through the induction coil 34 in parallel, thereby ensuring the heating effect.

[0032] The staff passes the stainless steel belt through the feed rollers 13, pulls out one end of the stainless steel belt, passes it between the front guide roller 41 and the squeezing roller 43, and puts it on the lower clamping plate 24. When passing through the squeezing roller 43, it is necessary to push the squeezing roller 43 downward, and the elastic member 44 is deformed. After the stainless steel belt passes through, the squeezing roller 43 is released, and the elastic member 44 rebounds to make the squeezing roller 43 stick to the bottom of the stainless steel belt and push the stainless steel belt to stick to the guide roller 41. Then the upper clamping plate 25 is rotated. The upper clamping plate 25 cooperates with the lower clamping plate 24 to clamp the stainless steel belt, and the upper clamping plate 25 cannot rotate through the locking block 26, and the stainless steel belt is fixed between the upper clamping plate 25 and the lower clamping plate 24. Then the power box 31 is turned on and the parameters are adjusted. The movable frame 22 is pulled backward at a uniform speed by the pull rope. When the stainless steel belt passes through the induction coil 34, eddy currents are induced in the stainless steel belt. Eddy currents are closed induced currents, which will A loop is formed inside the iron sheet, and Joule heat is generated, thereby generating heat for annealing. When the movable frame 22 passes through the induction coil 34, a tool is used to remove the locking block 26, and the upper clamping plate 25 is flipped up to release the stainless steel strip. Subsequently, one end of the stainless steel strip is connected to the winding assembly at the rear end. Subsequently, the stainless steel strip is guided by the guide roller 41, and continues to pass through the induction coil 34 in a stable state. The upper clamping plate 25 falls naturally. When this circle of stainless steel coil is about to be completely annealed, the pull rope at the front end of the movable frame 22 is pulled, and the movable frame 22 moves to the front end. The movable frame 22 supports the tail end of the stainless steel strip and follows the speed of the winding assembly. The pull rope at the rear end is pulled, so that the movable frame 22 supports the tail end of the stainless steel strip to pass through the induction coil 34 to complete the annealing process. After the stainless steel strip is separated from the squeezing roller 43, the elastic member 44 rebounds, pushing the squeezing roller 43 and the guide roller 41 to fit together, and then the power box 31 is turned off.

[0033] like Figure 6 and Figure 7 As shown, it also includes a cleaning assembly 5, which includes an incomplete gear 51, a cleaning roller 52, a transmission gear 53 and a first gear set 54. One end of the guide roller 41 connected to the front support frame 11 is connected to the incomplete gear 51, and two cleaning rollers 52 are rotatably connected to the front support frame 11. The ends of the two cleaning rollers 52 are commonly connected to the first gear set 54. The transmission gear 53 is rotatably connected to the outside of the front support frame 11. The transmission gear 53 is meshed with the incomplete gear 51 and the first gear set 54 respectively. The first gear set 54 is composed of two meshing gears. The stainless steel belt passes between the two cleaning rollers 52, and the cleaning roller 52 cleans both sides of the stainless steel belt. When the front guide roller 41 rotates, it is transmitted through the incomplete gear 51 and the transmission gear 53, so that the cleaning roller 52 rotates intermittently, and the stainless steel belt is cleaned in the replacement area. It should be noted that a check mechanism is provided on the first gear set 54 to prevent the cleaning roller 52 from rotating in the opposite direction.

[0034] like Figure 1 and Figure 8As shown, it also includes a servo motor 6, a discharge roller 61 and a second gear set 62. The servo motor 6 is installed on the outside of the rear support frame 12. The two discharge rollers 61 are rotatably connected to the rear support frame 12. One end of the two discharge rollers 61 is connected to the second gear set 62 for synchronous rotation. One end of one of the discharge rollers 61 is connected to the output shaft of the servo motor 6. The second gear set 62 is composed of two meshing gears. After the servo motor 6 is turned on, the servo motor 6 drives the discharge roller 61 to rotate, which can assist the winding component to pull the stainless steel belt to complete the winding work.

[0035] like Figure 1 , Figure 8 and Fig. 9 As shown, it also includes a frame 7, a first pulley group 71, a wind roller 72, a second pulley group 73, a guide roller 74, a filter screen 75 and a third gear group 76. The two frames 7 are symmetrically connected to the rear support frame 12 up and down. Both ends of the wind roller 72 pass through the frame 7 and are rotatably connected to the rear support frame 12. The wind rollers 72 are arranged in pairs longitudinally. The rear end of the frame 7 is connected to the guide roller 74, and the filter screen 75 is connected to the side where the two frames 7 are separated. The first pulley group 71 is connected between one end of the top wind roller 72 at the front end and the discharge roller 61 for transmitting power, and the other end is connected to the bottom wind roller 72 with a third gear group 76. The second pulley group 73 is connected between the wind rollers 72 adjacent to the front and rear positions, and is used for the front and rear wind rollers 72 to rotate. The two wind rollers 72 rotate synchronously, and the left and right ends of the second pulley are alternately connected. The first pulley group 71 is composed of two pulleys and a belt, and the second pulley group 73 is composed of a pulley and a belt. A pulley is connected to the end of each wind roller 72, and the wind roller 72 is transmitted by the first pulley group 71. The wind roller 72 accelerates the air circulation to cool the annealed stainless steel belt. The cooling rate is one of the key factors affecting the performance of steel. Too fast a cooling rate may cause the hardness of the steel to be too high, while too slow a cooling rate may not achieve the ideal annealing effect. Therefore, it is necessary to accurately control the cooling rate to obtain the desired performance. The rotation speed of the wind roller 72 is adjusted by the servo motor 6 to control the cooling rate.

[0036] When the stainless steel strip is annealed, the surface temperature is relatively high, so impurities adhering to the surface of the stainless steel strip may be directly burned due to the high temperature, so that the stainless steel strip is squeezed when passing through the squeezing roller 43, so that the stainless steel strip is closely fitted with the guide roller 41, and the stainless steel strip causes the guide roller 41 to rotate through friction, and the incomplete gear 51 connected to the end of the guide roller 41 rotates, and then drives the first gear set 54 to rotate through the transmission gear 53, thereby driving the two cleaning rollers 52 to rotate in the opposite direction, so that the cleaning roller 52 can not only clean the stainless steel strip, but also replace the contact position of the cleaning roller 52 with the stainless steel strip at intervals to ensure the cleaning effect, and the servo motor 6 drives the discharging roller 61 to rotate, and the discharging roller 61 The transmission is transmitted through the second gear set 62, so that the upper and lower discharge rollers 61 both push the stainless steel belt to move backward, which can assist the winding assembly to pull the stainless steel belt, and the discharge roller 61 drives the wind roller 72 at the top of the front end to rotate through the first pulley set 71. At the same time, through the third gear set 76, the wind roller 72 at the top of the front end drives the wind roller 72 at the bottom to rotate, and then drives all the wind rollers 72 at the rear to rotate through the second pulley set 73, accelerating the air circulation, thereby assisting the cooling of the stainless steel belt. The guide roller 74 at the rear end of the frame 7 cooperates with the discharge roller 61 to keep the stainless steel belt in the frame 7 in a horizontal state, and the filter screen 75 on the frame 7 can prevent impurities from falling onto the stainless steel belt, thereby protecting the stainless steel belt.

[0037] An annealing method for a stainless steel strip high-frequency annealing device specifically comprises the following steps:

[0038] S1, put the stainless steel coil on the feed roller 13, or pass the produced stainless steel strip between the feed rollers 13, pass one end of the stainless steel strip through the guide roller 41 and the squeeze roller 43, and put it on the lower clamping plate 24, then put down the upper clamping plate 25, and fix the upper clamping plate 25 and the lower clamping plate 24 by the locking block 26;

[0039] S2, turn on the power box 31, and pull the pull rope tied to the rear end of the mobile frame 22 backward;

[0040] S3, remove the locking block 26, pull one end of the stainless steel belt backwards, and connect it to the winding assembly;

[0041] S4, pull the pull rope at the front end of the moving frame 22, the moving frame 22 moves to the front end, and then pull the pull rope at the rear end, the moving frame 22 supports the other end of the stainless steel belt to pass through the induction coil 34.

[0042] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A high frequency annealing device for stainless steel strip, characterized in that: The invention comprises an annealing base (1), a front support frame (11), a rear support frame (12), a feed roller (13), a traction assembly (2), a heating assembly (3) and a flattening assembly (4); the front end of the annealing base (1) is connected to the front support frame (11); the front support frame (11) is rotatably connected to the feed roller (13); the rear end of the annealing base (1) is connected to the rear support frame (12); a winding assembly is arranged at the rear end of the annealing base (1) for winding the annealed stainless steel coil; the annealing base (1) is provided with a heating assembly (3) for heating the stainless steel coil passing through; a traction assembly (2) is arranged between the front support frame (11) and the rear support frame (12) for pulling the end of the stainless steel coil through the heating assembly (3); and a flattening assembly (4) is arranged on the front support frame (11) and the heating assembly (3) for ensuring that the stainless steel coil passing through the heating assembly (3) is flat.

2. A high frequency annealing device for stainless steel strip according to claim 1, characterized in that: The traction assembly (2) comprises an insulating guide rail (21), a moving frame (22), insulating wheels (23), a lower clamping plate (24), an upper clamping plate (25), a locking block (26) and a handle (27); the two ends of the insulating guide rail (21) are respectively connected to the front support frame (11) and the rear support frame (12), and are located on both sides of the front support frame (11) and the rear support frame (12); the left and right sides of the moving frame (22) are rotatably connected to a plurality of insulating wheels (23); The insulating wheel (23) is connected to the insulating guide rail (21) in rolling contact, a lower clamping plate (24) is connected in the middle of the moving frame (22), the rear end of the lower clamping plate (24) is rotatably connected to the upper clamping plate (25), a matching hole is opened in the middle of the lower clamping plate (24) and the upper clamping plate (25), a locking block (26) is clamped in the middle of the lower clamping plate (24) and the upper clamping plate (25), and a handle (27) is connected to the front and rear ends of the moving frame (22), and a pull rope is tied to the handle (27).

3. A high frequency annealing device for stainless steel strip according to claim 2, characterized in that: The heating assembly (3) comprises a power supply box (31), a support box (32), support rods (33) and an induction coil (34); the power supply box (31) and the support box (32) are respectively connected to the middle of the left and right sides of the annealing base (1); the opposing surfaces of the power supply box (31) and the support box (32) are connected to the support rods (33); the power supply box (31) is connected to the induction coil (34); and the induction coil (34) is connected to a plurality of support rods (33).

4. A high frequency annealing device for stainless steel strip according to claim 3, characterized in that: The leveling assembly (4) comprises a guide roller (41), a connecting sleeve (42), a squeezing roller (43) and an elastic member (44); the two guide rollers (41) are rotatably connected to the front support frame (11) and the heating assembly (3) respectively; the two ends of the guide roller (41) connected to the front support frame (11) are rotatably connected to the connecting sleeve (42); the connecting sleeve (42) is fixedly connected to the front support frame (11); the squeezing roller (43) is slidably connected between the two connecting sleeves (42); an elastic member (44) is sleeved on the connecting sleeve (42); one end of the elastic member (44) is connected to the connecting sleeve (42), and the other end is connected to the squeezing roller (43).

5. A high frequency annealing device for stainless steel strip according to claim 4, characterized in that: The cleaning assembly (5) further comprises an incomplete gear (51), a cleaning roller (52), a transmission gear (53) and a first gear set (54); one end of a guide roller (41) connected to the front support frame (11) is connected to the incomplete gear (51); two cleaning rollers (52) are rotatably connected to the front support frame (11); ends of the two cleaning rollers (52) are commonly connected to the first gear set (54); the transmission gear (53) is rotatably connected to the outer side of the front support frame (11); and the transmission gear (53) is respectively meshed with the incomplete gear (51) and the first gear set (54).

6. A high frequency annealing device for stainless steel strip according to claim 5, characterized in that: It also includes a servo motor (6), a discharging roller (61) and a second gear set (62), wherein the servo motor (6) is mounted on the outside of the rear support frame (12), and the two discharging rollers (61) are rotatably connected to the rear support frame (12), and one end of the two discharging rollers (61) is connected to the second gear set (62) for synchronous rotation, and one end of one of the discharging rollers (61) is connected to the output shaft of the servo motor (6).

7. A high frequency annealing device for stainless steel strip according to claim 6, characterized in that: The invention also comprises a frame (7), a first belt pulley group (71), a wind roller (72), a second belt pulley group (73), a guide roller (74), a filter screen (75) and a third gear group (76). The two frames (7) are symmetrically connected to the rear support frame (12) in an upper and lower manner. Both ends of the wind roller (72) pass through the frame (7) and are rotatably connected to the rear support frame (12). The wind rollers (72) are arranged in pairs in the longitudinal direction. The rear end of the frame (7) is connected to the guide roller (74). The two sides of the two frames (7) are connected to the filter screen (75). One end of the front top wind roller (72) is connected to the discharge roller (61) with the first belt pulley group (71) for transmitting power. The other end is connected to the bottom wind roller (72) with the third gear group (76). The second belt pulley group (73) is connected between the wind rollers (72) adjacent to each other in the front and rear positions for synchronous rotation between the front and rear wind rollers (72).

8. The annealing method of a stainless steel strip high frequency annealing device according to claim 7, wherein the specific steps are as follows: S1, passing the stainless steel strip between the feed rollers (13), passing one end of the stainless steel strip through the guide roller (41) and the squeeze roller (43), and placing it on the lower clamping plate (24), then lowering the upper clamping plate (25), and fixing the upper clamping plate (25) and the lower clamping plate (24) by the locking block (26); S2, turn on the power box (31), and pull the pull rope tied to the rear end of the mobile frame (22) backward; S3, remove the locking block (26), pull one end of the stainless steel belt backwards, and connect it to the winding assembly; S4, pull the pull rope at the front end of the moving frame (22), the moving frame (22) moves to the front end, and then pull the pull rope at the rear end, the moving frame (22) supports the other end of the stainless steel belt to pass through the induction coil (34).

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