Oriented silicon steel nitriding device and nitriding method thereof

Abstract

The invention relates to a nitriding device, in particular to an oriented silicon steel nitriding device and a nitriding method.The oriented silicon steel nitriding device comprises a shell, a sealing cover plate, a pneumatic control assembly, a material transferring mechanism, a replacing assembly, a lifting assembly and the like, the sealing cover plate is rotationally connected to the shell, and the pneumatic control assembly is installed in the middle of the sealing cover plate and used for maintaining the nitrogen content in the shell; a material rotating mechanism used for rotating the oriented silicon steel coil is arranged in the shell, a replacing assembly used for adjusting the rotating position of the oriented silicon steel coil is arranged at the bottom of the shell, and a lifting assembly used for lifting the oriented silicon steel coil is arranged in the shell. The whole oriented silicon steel coil is put into the nitriding equipment, winding and unwinding of oriented silicon steel are achieved through cooperation of the material transferring mechanism and the replacing assembly, so that factors such as temperature fluctuation and atmosphere change caused by starting and stopping of the equipment are eradicated, operation steps are reduced through the lifting assembly, and the purpose of improving the working efficiency and stability is achieved.

Description

Technical Field

[0001] The invention relates to a nitriding device, in particular to a nitriding device for oriented silicon steel and a nitriding method thereof. Background Art

[0002] As an indispensable key material in the power industry, oriented silicon steel is widely used in the manufacture of power equipment such as transformers and motors due to its excellent magnetic properties and good processability. Its unique crystal structure and orientation characteristics greatly reduce the energy loss generated when the current passes through, thereby improving the efficiency of power transmission and conversion. With the continuous improvement of global requirements for energy efficiency, the performance requirements for oriented silicon steel are becoming increasingly stringent, especially in terms of high magnetic induction, low iron loss and good mechanical strength.

[0003] At present, nitriding technology has been widely used as one of the important means to improve the performance of oriented silicon steel. Existing nitriding devices usually integrate advanced heating systems, precise gas control systems and automated operation processes, which can achieve efficient nitriding treatment of oriented silicon steel. These devices effectively improve the magnetic properties and corrosion resistance of oriented silicon steel by accurately controlling parameters such as temperature, atmosphere and time during the nitriding process. However, although the existing nitriding devices have reached a high technical level in heating control and gas control, there are still certain limitations in processing methods and efficiency.

[0004] Although the existing nitriding devices are relatively mature in technology and performance, they still face some challenges in practical applications. In particular, most of the current nitriding devices adopt a single-piece or segmented processing method, that is, the silicon steel sheets need to pass through the nitriding device one by one for nitriding treatment. This method not only increases the complexity and time cost of the operation, but also in the process of the silicon steel sheet passing through the device, it is easy to affect the consistency and stability of the nitriding effect due to factors such as temperature fluctuations and atmosphere changes caused by the opening and closing of the equipment. In addition, for large steel coils, existing equipment is even more difficult to cope with, and the steel coils need to be cut into single pieces or small segments suitable for processing, which undoubtedly increases production costs and waste generation. Summary of the invention

[0005] In order to overcome the shortcomings of low efficiency and poor stability, the present invention provides a whole-roll continuous nitriding device for oriented silicon steel and a nitriding method thereof.

[0006] A nitriding device for oriented silicon steel comprises a shell, a sealing cover plate, a gas control component, a material transfer mechanism, a replacement component and a lifting component. The shell is rotatably connected to a sealing cover plate, and a gas control component is installed in the middle of the sealing cover plate to maintain the nitrogen content in the shell. A material transfer mechanism for rotating an oriented silicon steel coil is arranged in the shell, a replacement component for adjusting the rotation position of the oriented silicon steel coil is arranged at the bottom of the shell, and a lifting component for lifting the oriented silicon steel coil is arranged in the shell.

[0007] As an improvement on the above scheme, the material transfer mechanism includes a first mounting frame, a first servo motor, a driving wheel, a left transmission assembly, a clamping disk and a rotating rod. The first mounting frame is connected to the bottom of the shell, and the first servo motor is installed on the first mounting frame. The driving wheel is connected to the output shaft of the first servo motor. The left and right sides of the shell are rotatably connected to the rotating rods, and the clamping disk is slidably connected to the rotating rod. The oriented silicon steel coil is wound on the placement frame, and the placement frame is clamped with the clamping disk in a characteristic shape. A left transmission assembly is arranged at the bottom of the shell, and the left transmission assembly is respectively connected to the driving wheel and the rotating rod. When the first servo motor drives the driving wheel to rotate, the transmission is transmitted through the left transmission assembly in the middle to rotate the rotating rod.

[0008] As an improvement of the above scheme, the left transmission assembly includes a left fixed sleeve, a left transmission rod, a left sliding sleeve, a left fixed wheel, a left sliding wheel and a left driven wheel. The left fixed sleeve is connected to the bottom of the shell, and the left sliding sleeve is slidably connected to the bottom of the shell. The left transmission rod passes through the left fixed sleeve, and the left end of the left transmission rod is rotatably connected to the left sliding sleeve, and the other end is connected to the left fixed wheel, and the left fixed wheel can engage with the left side of the driving wheel. The left transmission rod is slidably connected to the left sliding wheel in the middle, and the bottom of the left rotating rod passes through the bottom of the shell and is connected to the left driven wheel, the left driven wheel engages with the left sliding wheel, and the left sliding wheel is rotatably connected to the left fixed sleeve.

[0009] As an improvement of the above scheme, the replacement component includes a cylinder and a right transmission component, a cylinder is installed on the right side of the bottom of the shell, the right rotating rod and the driving wheel are transmitted through the right transmission component, the right transmission component is composed of a right fixed sleeve, a right transmission rod, a right sliding sleeve, a right fixed wheel, a right sliding wheel and a right driven wheel, the right fixed sleeve is connected to the bottom of the shell, the right sliding sleeve is slidably connected to the bottom of the shell, the right transmission rod passes through the right fixed sleeve and is rotatably connected in the right sliding sleeve, the left end of the right transmission rod is connected to the right fixed wheel, and the other end is connected to the piston rod of the cylinder, the right fixed wheel can engage with the right side of the driving wheel, the right transmission rod is rotatably connected to the left transmission rod, the right sliding wheel is slidably connected in the middle of the right transmission rod, the bottom of the right rotating rod passes through the bottom of the shell and is connected to the right driven wheel, the right driven wheel engages with the right sliding wheel, and the right sliding wheel is rotatably connected to the right fixed sleeve.

[0010] As an improvement on the above scheme, the lifting assembly includes a second mounting frame, a second servo motor, a mounting block, a threaded rod, a lifting plate and a transmission belt. The second mounting frame is connected to the bottom of the shell, and the second servo motor is installed on the second mounting frame. The left and right side walls of the shell are connected to mounting blocks. The lifting plate is sleeved on two clamping plates, and the lifting plate is rotatably connected to the clamping plates. Threaded rods are threadedly connected to the left and right ends of the lifting plate. The upper end of the threaded rod is rotatably connected to the mounting block, and the lower end of the threaded rod is rotatably connected to the bottom of the shell. The lower end of one of the threaded rods is connected to the output shaft of the second servo motor, and a transmission belt is sleeved on the bottom of the two threaded rods.

[0011] As an improvement of the above scheme, it also includes a temperature controller, an embedded conduit and a mounting ring. The temperature controller is installed on the side wall of the shell, and multiple mounting rings are connected to the inside of the shell. Both ends of the embedded conduit are connected to the temperature controller, the middle is put on the mounting ring, and surrounds the shell.

[0012] As an improvement of the above scheme, it also includes hinge blocks and push rods. The left and right ends of the lifting plate are connected with hinge blocks, the bottom of the sealing cover plate is connected with two hinge blocks, and the lifting plate and the sealing cover plate are rotatably connected between the corresponding two hinge blocks.

[0013] As an improvement of the above solution, a heating system is integrated in the shell, and the heating system can heat the oriented silicon steel.

[0014] A nitriding method for an orientation silicon steel nitriding device, the specific steps are as follows:

[0015] S1, placing the oriented silicon steel coil into the housing, clamping the placement rack with the oriented silicon steel coil on it on the clamping disk, clamping another empty placement rack on another clamping disk as a winding rack, pulling out part of the oriented silicon steel and connecting it to the empty placement rack;

[0016] S2, push the left transmission rod and the right transmission rod through the cylinder, and the side where the empty placement rack is located cooperates with the driving wheel transmission;

[0017] S3, cover the sealing cover plate, turn on the gas control assembly, the temperature controller and the first servo motor, the components operate stably, and the oriented silicon steel is moved from one placement rack to another, during which the nitriding process is completed;

[0018] S4. Close the air control assembly, the temperature controller and the first servo motor, open the sealing cover and the second servo motor, lift the plate to push out the oriented silicon steel coil, and the staff collects the nitrided oriented silicon steel.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The present invention places the entire oriented silicon steel coil into the nitriding equipment, and realizes the winding and unwinding of the oriented silicon steel through the cooperation of the material transfer mechanism and the replacement component, thereby eliminating factors such as temperature fluctuations and atmosphere changes caused by the opening and closing of the equipment. The operating steps are also reduced by lifting the component, thereby achieving the purpose of improving work efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0023] Figure 3It is a schematic diagram of the installation structure of the material transfer mechanism and the replacement component of the present invention.

[0024] Figure 4 It is a schematic diagram of the connection structure of the material transfer mechanism and the replacement component of the present invention.

[0025] Figure 5 It is a schematic diagram of the installation structure of the lifting assembly of the present invention.

[0026] Figure 6 It is a cross-sectional view of the installation structure of the lifting assembly of the present invention.

[0027] Figure 7 It is a schematic diagram of the connection relationship between the temperature controller, the embedded conduit and the mounting ring of the present invention.

[0028] Figure 8 It is a schematic diagram of the connection relationship between the lifting plate, the hinge block and the push rod of the present invention.

[0029] Names of the symbols in the figure: 1. Shell, 11. Sealing cover plate, 12. Air control assembly, 2. Material transfer mechanism, 21. First mounting bracket, 22. First servo motor, 221. Driving wheel, 23. Left transmission assembly, 231. Left fixed sleeve, 232. Left transmission rod, 233. Left sliding sleeve, 234. Left fixed wheel, 235. Left sliding wheel, 236. Left driven wheel, 24. Card plate, 25. Rotating rod, 3. Replacement assembly, 31. Cylinder , 32. Right transmission assembly, 321. Right fixed sleeve, 322. Right transmission rod, 323. Right sliding sleeve, 324. Right fixed wheel, 325. Right sliding wheel, 326. Right driven wheel, 4. Lifting assembly, 41. Second mounting frame, 42. Second servo motor, 43. Mounting block, 44. Threaded rod, 45. Lifting plate, 46. Transmission belt, 5. Temperature controller, 51. Embedded conduit, 52. Mounting collar, 6. Articulated block, 61. Push rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment: A nitriding device for oriented silicon steel, such as Figure 1-Figure 8As shown, it includes a shell 1, a sealing cover plate 11, an air control component 12, a material transfer mechanism 2, a replacement component 3 and a lifting component 4. The shell 1 is rotatably connected to the sealing cover plate 11, and an air control component 12 for maintaining the nitrogen content in the shell 1 is installed in the middle of the sealing cover plate 11. The air control component 12 is responsible for introducing an appropriate amount of nitriding gas (such as ammonia) into the nitriding chamber and controlling parameters such as gas flow, concentration and purity. The air control component 12 also includes an exhaust system for discharging waste gas generated during the nitriding process. A material transfer mechanism 2 for rotating the oriented silicon steel coil is provided in the shell 1, a replacement component 3 for adjusting the rotation position of the oriented silicon steel coil is provided at the bottom of the shell 1, and a lifting component 4 for lifting the oriented silicon steel coil is provided in the shell 1.

[0032] The staff puts the oriented silicon steel coil into the shell 1, and places the placement rack with the oriented silicon steel coil and an empty placement rack on the material transfer mechanism 2. By replacing the component 3, the empty placement rack is selected to cooperate with the material transfer mechanism 2, and the empty placement rack is used as a winding rack for winding. The sealing cover plate 11 is covered, the air control component 12 and the material transfer mechanism 2 are turned on, and the components operate stably. The oriented silicon steel is moved from one placement rack to another. During this period, the nitriding process is completed, the air control component 12 and the material transfer mechanism 2 are closed, the sealing cover plate 11 and the lifting component 4 are opened, the lifting component 4 pushes out the oriented silicon steel coil, and the staff collects the nitrided oriented silicon steel.

[0033] like Figure 2-Figure 4 As shown, the material transfer mechanism 2 includes a first mounting frame 21, a first servo motor 22, a driving wheel 221, a left transmission assembly 23, a clamping disk 24 and a rotating rod 25. The first mounting frame 21 is connected to the bottom of the shell 1, and the first servo motor 22 is installed on the first mounting frame 21. The driving wheel 221 is connected to the output shaft of the first servo motor 22. The rotating rods 25 are rotatably connected to the left and right sides of the shell 1, and the clamping disk 24 is slidably connected to the rotating rod 25. The oriented silicon steel coil is wound on the placement frame, and the placement frame is clamped with the characteristic shape of the clamping disk 24. The bottom of the shell 1 is provided with a left transmission assembly 23, and the left transmission assembly 23 is respectively connected to the driving wheel 221 and the rotating rod 25. When the first servo motor 22 drives the driving wheel 221 to rotate, the left transmission assembly 23 is transmitted in the middle to rotate the rotating rod 25.

[0034] like Figure 3 and Figure 4As shown, the left transmission assembly 23 includes a left fixed sleeve 231, a left transmission rod 232, a left sliding sleeve 233, a left fixed wheel 234, a left sliding wheel 235 and a left driven wheel 236. The left fixed sleeve 231 is connected to the bottom of the shell 1, and the left sliding sleeve 233 is slidably connected to the bottom of the shell 1. The left transmission rod 232 passes through the left fixed sleeve 231, and the left end of the left transmission rod 232 is rotatably connected to the left sliding sleeve 233, and the other end is connected to the left fixed wheel 234, and the left fixed wheel 234 can engage with the left side of the driving wheel 221. The left transmission rod 232 is slidably connected to the left sliding wheel 235 in the middle, and the bottom of the left rotating rod 25 passes through the bottom of the shell 1 and is connected to the left driven wheel 236, and the left driven wheel 236 engages with the left sliding wheel 235, and the left sliding wheel 235 is rotatably connected to the left fixed sleeve 231.

[0035] like Figure 3 and Figure 4 As shown, the replacement component 3 includes a cylinder 31 and a right transmission component 32. The cylinder 31 is installed on the right side of the bottom of the shell 1. The right rotating rod 25 and the driving wheel 221 are transmitted through the right transmission component 32. The right transmission component 32 is composed of a right fixed sleeve 321, a right transmission rod 322, a right sliding sleeve 323, a right fixed wheel 324, a right sliding wheel 325 and a right driven wheel 326. The right fixed sleeve 321 is connected to the bottom of the shell 1, the right sliding sleeve 323 is slidably connected to the bottom of the shell 1, and the right transmission rod 322 passes through the right fixed sleeve 321 and is rotatably connected to In the right sliding sleeve 323, the left end of the right transmission rod 322 is connected to the right fixed wheel 324, and the other end is connected to the piston rod of the cylinder 31, the right fixed wheel 324 can mesh with the right side of the driving wheel 221, the right transmission rod 322 is rotatably connected to the left transmission rod 232, and there is no sliding fit, the middle of the right transmission rod 322 is slidably connected to the right sliding wheel 325, the bottom of the right rotating rod 25 passes through the bottom of the shell 1 and is connected to the right driven wheel 326, the right driven wheel 326 meshes with the right sliding wheel 325, and the right sliding wheel 325 is rotatably connected to the right fixed sleeve 321.

[0036] The cylinder 31 is connected to the right transmission rod 322. When the right transmission rod 322 moves left or right, the left transmission rod 232 moves with it, ensuring that only one rotating rod 25 is connected to the first servo motor 22 for transmission. By pulling the oriented silicon steel with one rotating rod 25, it can be ensured that the pulled oriented silicon steel is straight. Taking the cylinder 31 pulling the right transmission rod 322 to move right as an example, the left fixed wheel 234 engages with the driving wheel 221, so that the first servo motor 22 drives the left transmission rod 232 to rotate, and the left sliding wheel 235 cooperates with the left driven wheel 236 to drive the rotating rod 25 on the left to rotate. At this time, an empty placement rack is placed on the rotating rod 25 on the left to reel in the oriented silicon steel on the right.

[0037] like Figure 5 and Figure 6As shown, the lifting assembly 4 includes a second mounting frame 41, a second servo motor 42, a mounting block 43, a threaded rod 44, a lifting plate 45 and a transmission belt 46. The second mounting frame 41 is connected to the bottom of the shell 1, and the second servo motor 42 is installed on the second mounting frame 41. The mounting blocks 43 are connected to the left and right side walls of the shell 1. The lifting plate 45 is sleeved on the outer rings of the two clamping plates 24. The lifting plate 45 is rotatably connected to the clamping plates 24. The lifting plate 45 is designed to support the placement rack with the clamping plates 24. When the lifting plate 45 rises, it will push the placement rack and the clamping plate 24 to rise together. The left and right ends of the lifting plate 45 are threadedly connected with the threaded rod 44. The upper end of the threaded rod 44 is rotatably connected to the mounting block 43, and the lower end of the threaded rod 44 is rotatably connected to the bottom of the shell 1. The lower end of one of the threaded rods 44 is connected to the output shaft of the second servo motor 42, and the bottom of the two threaded rods 44 is sleeved with a transmission belt 46.

[0038] After the nitriding work is completed, the second servo motor 42 is turned on, and the two threaded rods 44 are rotated through the transmission belt 46, pushing the lifting plate 45 to move upward, and lifting the clamping plate 24 to facilitate the staff to take it.

[0039] First, the staff installs the placement rack with the oriented silicon steel wound on the left rotating rod 25, and the empty placement rack is installed on the right rotating rod 25. After starting the first servo motor 22, the left rotating rod 25 rotates, driving the placement rack with the oriented silicon steel wound on it to rotate, so that the oriented silicon steel is gradually unwound and transferred to the empty placement rack on the right. The placement rack is clamped with the clamping disk 24 to ensure that the placement rack rotates with the clamping disk 24, and an interface for fixing the oriented silicon steel is provided on the placement rack. The placement rack with the oriented silicon steel wound on it has been connected to one end of the oriented silicon steel. At this time, the oriented silicon steel is pulled out from the left rotating rod 25, that is, after the outer end of the oriented silicon steel coil is pulled out, it is connected to the interface of the right placement rack and fixed. Then the cylinder 31 is turned on to push the right transmission rod 322 to move to the left, and the right sliding sleeve 323 is at the bottom of the shell 1. The left transmission rod 232 slides to the left, and the left fixed wheel 234 is disengaged from the driving wheel 221. The left transmission rod 232 drives the left sliding sleeve 233 to slide to the left at the bottom of the shell 1, and the left transmission rod 232 also slides in the left sliding wheel 235. After the first servo motor 22 is turned on, the driving wheel 221 drives the right fixed wheel 324 to rotate, thereby driving the right transmission rod 322 and the right sliding wheel 325 to rotate, and driving the right driven wheel 326 engaged with the right sliding wheel 325 to rotate, so that the placement rack on the right side rotates and the oriented silicon steel is rolled up. During this period, the air control component 12 is turned on to complete the nitriding work. After the oriented silicon steel is completely transferred to the empty placement rack on the right side, the first servo motor 22 is turned off. Next, open the sealing cover plate 11, and then start the second servo motor 42. Through the rotation of the threaded rod 44, the lifting plate 45 is pushed up to push out the placement rack containing the oriented silicon steel after nitriding. First, remove the oriented silicon steel from the interface of the left placement rack, and then take out the placement rack and the oriented silicon steel on the right. At this time, the placement rack on the left is empty. It is only necessary to roll the oriented silicon steel to be nitrided to the right, pull out the outer end of the oriented silicon steel, and fix it on the placement rack on the left. After the cylinder pushes and pulls the right transmission rod, the next nitriding work can be carried out.

[0040] like Figure 2 and Figure 7 As shown, it also includes a temperature controller 5, an embedded conduit 51 and a mounting collar 52. The temperature controller 5 is installed on the side wall of the shell 1. A plurality of mounting collars 52 are connected inside the shell 1. Both ends of each embedded conduit 51 are connected to the temperature controller 5. The middle is sleeved on the mounting collar 52 and surrounds the shell 1. The temperature controller 5 controls the embedded conduit 51. Resistance heating or induction heating is used to heat the oriented silicon steel to an appropriate temperature to promote the diffusion and penetration of nitrogen.

[0041] At the beginning of nitriding, the temperature controller 5 is turned on, the embedded conduit 51 is heated by the temperature controller 5, and the ambient temperature in the shell 1 is accurately controlled, so that the oriented silicon steel has a suitable temperature. At the suitable temperature, the nitrogen atoms in the nitriding process can more effectively penetrate into the lattice of the oriented silicon steel, combine with the iron element or other alloy elements in the steel, form stable nitrides, and improve its microstructure and surface quality.

[0042] like Figure 2 and Figure 8 As shown, it also includes an articulated block 6 and a push rod 61. The left and right ends of the lifting plate 45 are connected to an articulated block 6, and the bottom of the sealing cover plate 11 is connected to two articulated blocks 6. The lifting plate 45 and the corresponding two articulated blocks 6 on the sealing cover plate 11 are rotatably connected with a push rod 61.

[0043] When the threaded rod 44 lifts the lifting plate 45, the hinge block 6 at the bottom lifts the push rod 61, so that the push rod 61 lifts the sealing cover plate 11, completing the operation of rotating and opening the sealing cover plate 11, and when the lifting plate 45 is subsequently lowered, the sealing cover plate 11 can be pulled closed, further ensuring the airtightness between the sealing cover plate 11 and the shell 1.

[0044] It should be noted that the driving wheel 221, the left fixed wheel 234, the left sliding wheel 235, the left driven wheel 236, the right fixed wheel 324, the right sliding wheel 325 and the right driven wheel 326 are all bevel gear structures; the inner layer of the shell 1 is made of heat-conducting material, the middle layer is made of heat-insulating material, and the outer layer is made of heat-insulating material. The embedded conduit 51 is arranged in the inner layer of the shell 1, and the sealing cover plate 11 is composed of an inner layer of heat-insulating material and an outer layer of heat-insulating material.

[0045] A nitriding method for an orientation silicon steel nitriding device, the specific steps are as follows:

[0046] S1, put the oriented silicon steel coil into the housing 1, make the placement rack with the oriented silicon steel coil wound on it clamped on the clamping disk 24, clamp another empty placement rack on another clamping disk 24 as a winding rack, pull out part of the oriented silicon steel, and connect it to the empty placement rack;

[0047] S2, the cylinder 31 pushes the left transmission rod 232 and the right transmission rod 322, and the side where the empty placement rack is located cooperates with the driving wheel 221;

[0048] S3, cover the sealing cover plate 11, turn on the air control assembly 12, the temperature controller 5 and the first servo motor 22, the components operate stably, and the oriented silicon steel is moved from one placement rack to another, during which the nitriding process is completed;

[0049] S4, close the air control assembly 12, the temperature controller 5 and the first servo motor 22, open the sealing cover plate 11 and the second servo motor 42, lift the plate 45 to push out the oriented silicon steel coil, and the staff collects the nitrided oriented silicon steel.

[0050] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A nitriding device for oriented silicon steel, characterized in that: The invention comprises a shell (1), a sealing cover plate (11), an air control component (12), a material transfer mechanism (2), a replacement component (3) and a lifting component (4); the shell (1) is rotatably connected with the sealing cover plate (11); the air control component (12) is installed in the middle of the sealing cover plate (11); the air control component (12) is used to maintain the nitrogen content in the shell (1); the shell (1) is provided with a material transfer mechanism (2) for rotating the oriented silicon steel coil; the bottom of the shell (1) is provided with a replacement component (3) for adjusting the rotation position of the oriented silicon steel coil; the shell (1) is provided with a lifting component (4) for lifting the oriented silicon steel coil.

2. A nitriding device for oriented silicon steel as claimed in claim 1, characterized in that: The material transfer mechanism (2) comprises a first mounting frame (21), a first servo motor (22), a driving wheel (221), a left transmission assembly (23), a clamping disc (24) and a rotating rod (25). The bottom of the housing (1) is connected with the first mounting frame (21), the first servo motor (22) is mounted on the first mounting frame (21), the output shaft of the first servo motor (22) is connected with the driving wheel (221), the left and right sides of the housing (1) are both rotatably connected with the rotating rod (25), the clamping disc (24) is slidably connected with the rotating rod (25), the oriented silicon steel coil is wound on the placement frame, the placement frame and the clamping disc (24) are clamped in a characteristic shape, the bottom of the housing (1) is provided with a left transmission assembly (23), the left transmission assembly (23) is respectively connected with the driving wheel (221) and the rotating rod (25), when the first servo motor (22) drives the driving wheel (221) to rotate, the left transmission assembly (23) is transmitted in the middle, so that the rotating rod (25) rotates.

3. A nitriding device for oriented silicon steel as claimed in claim 2, characterized in that: The left transmission assembly (23) comprises a left fixed sleeve (231), a left transmission rod (232), a left sliding sleeve (233), a left fixed wheel (234), a left sliding wheel (235) and a left driven wheel (236); the left fixed sleeve (231) is connected to the bottom of the housing (1); the left sliding sleeve (233) is slidably connected to the bottom of the housing (1); the left transmission rod (232) passes through the left fixed sleeve (231); the left end of the left transmission rod (232) is connected to the left sliding sleeve (234); 33) is rotatably connected, and the other end is connected with a left fixed wheel (234), the left fixed wheel (234) can mesh with the left side of the driving wheel (221), the middle of the left transmission rod (232) is slidably connected with a left sliding wheel (235), the bottom of the left rotating rod (25) passes through the bottom of the shell (1) and is connected with a left driven wheel (236), the left driven wheel (236) meshes with the left sliding wheel (235), and the left sliding wheel (235) is rotatably connected with the left fixed sleeve (231).

4. A nitriding device for oriented silicon steel as claimed in claim 3, characterized in that: The replacement assembly (3) comprises a cylinder (31) and a right transmission assembly (32). The cylinder (31) is installed on the right side of the bottom of the housing (1). The right rotating rod (25) and the driving wheel (221) are driven by the right transmission assembly (32). The right transmission assembly (32) is composed of a right fixed sleeve (321), a right transmission rod (322), a right sliding sleeve (323), a right fixed wheel (324), a right sliding wheel (325) and a right driven wheel (326). The right fixed sleeve (321) is connected to the bottom of the housing (1), the right sliding sleeve (323) is slidably connected to the bottom of the housing (1), and the right transmission rod (322) passes through the right fixed sleeve (321). ) and is rotatably connected in the right sliding sleeve (323); the left end of the right transmission rod (322) is connected with a right fixed wheel (324); the other end is connected with the piston rod of the cylinder (31); the right fixed wheel (324) can mesh with the right side of the driving wheel (221); the right transmission rod (322) is rotatably connected with the left transmission rod (232); the middle of the right transmission rod (322) is slidably connected with a right sliding wheel (325); the bottom of the right rotating rod (25) passes through the bottom of the housing (1) and is connected with a right driven wheel (326); the right driven wheel (326) meshes with the right sliding wheel (325); the right sliding wheel (325) is rotatably connected with the right fixed sleeve (321).

5. A nitriding device for oriented silicon steel as claimed in claim 4, characterized in that: The lifting assembly (4) comprises a second mounting frame (41), a second servo motor (42), a mounting block (43), a threaded rod (44), a lifting plate (45) and a transmission belt (46). The bottom of the shell (1) is connected to the second mounting frame (41), the second servo motor (42) is mounted on the second mounting frame (41), the left and right side walls of the shell (1) are connected to the mounting blocks (43), the lifting plate (45) is sleeved on the two clamping plates (24), the lifting plate (45) is rotatably connected to the clamping plates (24), the left and right ends of the lifting plate (45) are threadedly connected to the threaded rod (44), the upper end of the threaded rod (44) is rotatably connected to the mounting block (43), the lower end of the threaded rod (44) is rotatably connected to the bottom of the shell (1), the lower end of one of the threaded rods (44) is connected to the output shaft of the second servo motor (42), and the bottoms of the two threaded rods (44) are sleeved with a transmission belt (46).

6. A nitriding device for oriented silicon steel as claimed in claim 5, characterized in that: It also comprises a temperature controller (5), an embedded conduit (51) and a mounting collar (52); the temperature controller (5) is mounted on the side wall of the shell (1); a plurality of mounting collars (52) are connected to the inside of the shell (1); both ends of the embedded conduit (51) are connected to the temperature controller (5); the middle is mounted on the mounting collar (52) and surrounds the shell (1).

7. A nitriding device for oriented silicon steel as claimed in claim 6, characterized in that: It also includes hinge blocks (6) and a push rod (61), the left and right ends of the lifting plate (45) are connected to hinge blocks (6), the bottom of the sealing cover plate (11) is connected to two hinge blocks (6), and the lift plate (45) and the corresponding two hinge blocks (6) on the sealing cover plate (11) are rotatably connected with a push rod (61).

8. The nitriding method of a nitriding device for oriented silicon steel according to claim 7, wherein the specific steps are as follows: S1, placing the oriented silicon steel coil into the housing (1), making the placement rack with the oriented silicon steel coil wound thereon be clamped on the clamping disk (24), clamping another empty placement rack on another clamping disk (24) as a winding rack, pulling out part of the oriented silicon steel and connecting it to the empty placement rack; S2, the left transmission rod (232) and the right transmission rod (322) are pushed by the cylinder (31), and the side where the empty placement rack is located is matched with the driving wheel (221); S3, cover the sealing cover plate (11), turn on the air control assembly (12), the temperature controller (5) and the first servo motor (22), the components operate stably, and the oriented silicon steel is moved from one placement rack to another placement rack, during which the nitriding process is completed; S4, the air control assembly (12), the temperature controller (5) and the first servo motor (22) are turned off, the sealing cover plate (11) and the second servo motor (42) are turned on, the lifting plate (45) pushes out the oriented silicon steel coil, and the staff collects the nitrided oriented silicon steel.

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