A silicon steel sheet longitudinal cutting and slitting device

Abstract

The application discloses a silicon steel sheet longitudinal shearing and cutting device, and relates to the technical field of silicon steel sheet shearing, which comprises a longitudinal shearing and cutting machine, a motor is fixedly connected to one side of the longitudinal shearing and cutting machine, a rolling shaft is fixedly connected to the output end of the motor, one end of the rolling shaft penetrates through the inside of the longitudinal shearing and cutting machine and is rotationally connected to the other side of the longitudinal shearing and cutting machine through a bearing, a silicon steel long sheet is in contact with the outer wall of the rolling shaft, and a liquid coating mechanism is arranged on the outer wall of the rolling shaft. Through the arrangement of the liquid coating mechanism, the exposed cutting surface after the longitudinal shearing and cutting of the two sides of the silicon steel long sheet can be polished in real time, the burrs are naturally and uniformly polished, the polishing density is further improved by cooperating with the polishing strips in the grooves, the cutting surface of the silicon steel long sheet is more uniformly polished, the precision is higher, the stability in the transmission process is not affected by the burrs on the side surface, the problem of cutting transmission deviation caused by the burrs is avoided, and the outgoing quality of the silicon steel long sheet after longitudinal shearing and cutting is improved.

Description

Technical Field

[0001] This invention relates to the field of silicon steel sheet shearing technology, specifically to a silicon steel sheet longitudinal shearing and cutting device. Background Technology

[0002] Silicon steel sheets are essential soft magnetic alloys for the power, electronics, and military industries, and are also the most produced functional metallic material, primarily used as the cores of various motors, generators, and transformers. Its production process is complex, and manufacturing techniques are stringent; foreign production technologies are protected by patents, considered vital to the companies involved. The manufacturing technology and product quality of electrical steel sheets are important indicators of a country's special steel production and technological development level. Currently, the quantity, quality, and specifications of cold-rolled electrical steel in my country cannot meet the needs of the energy (power) industry, and there is a significant gap compared to Japan in production technology, equipment, management, and research.

[0003] A silicon steel sheet longitudinal shearing and pressing device described in patent application CN218555764U includes an adjustable support and pressing members. The adjustable spacing between adjacent pressing members is movably disposed on the adjustable support along the width direction of the silicon steel strip. The pressing members have multiple pressing points, including elastic pressing points and rigid pressing points on the same pressing member. Both elastic and rigid pressing points are provided with corresponding pressing structures. When the pressing members move down to press the silicon steel strip with the pressing structures, the elastic pressing action of the elastic pressing points comes first, followed by the rigid pressing action of the rigid pressing points.

[0004] Currently, when silicon steel sheet slitting machines slit large silicon steel sheets into long strips for transport, the cut surfaces of these strips are rough with many burrs. These burrs can easily cause deformation and jamming during transport, affecting the transport efficiency after cutting. At the same time, the exposed cut surfaces are prone to rapid oxidation, affecting the quality of the silicon steel sheets. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a silicon steel sheet longitudinal shearing device, thereby solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a silicon steel sheet slitting and cutting device, including a slitting and cutting machine, a motor is fixedly connected to one side of the slitting and cutting machine, a rolling shaft is fixedly connected to the output end of the motor, one end of the rolling shaft passes through the interior of the slitting and cutting machine and is rotatably connected to the other side of the slitting and cutting machine through a bearing, a silicon steel sheet is in contact with the outer wall of the rolling shaft, and a coating mechanism is provided on the outer wall of the rolling shaft;

[0007] The coating mechanism includes:

[0008] A fixed limiting piece is a circular sheet structure. The inner wall of the fixed limiting piece is fixedly connected to the outer wall of the rolling shaft. A connecting plate is fixedly connected to one side of the fixed limiting piece. A groove is provided on the inner wall of the connecting plate. The connecting plate serves to limit the position of the silicon steel sheet.

[0009] The grinding strip is a circular rod-shaped structure, with one end of the grinding strip fixedly connected to the inner wall of the groove. The connecting disc is a circular hollow disc-shaped structure. The grinding strip serves to polish the long silicon steel sheet.

[0010] Preferably, a sliding strip is fixedly connected to the outer wall of the fixed limiting piece, and the sliding strip has an annular strip structure.

[0011] Preferably, the fixed limiting piece is slidably connected to the liquid storage box via a sliding strip. The liquid storage box has a rectangular box-shaped structure, and a counterweight plate is fixedly connected to the bottom of the liquid storage box. The counterweight plate serves as a counterweight.

[0012] Preferably, the inner wall of the liquid storage box is provided with a liquid storage tank, and the liquid storage tank is filled with an antioxidant and rust-preventing liquid.

[0013] Preferably, the outer wall of the counterweight plate is provided with a limiting film-forming mechanism, the limiting film-forming mechanism includes a connecting plate, one end of which is fixedly connected to a limiting block, the limiting block being a block structure.

[0014] Preferably, the connecting plate has an arc-shaped plate structure, and a through groove is formed on the inner wall of the connecting plate. A fixed shaft is fixedly connected to the inner wall of the through groove. The fixed shaft serves to support and fix the connecting plate, and the through groove is used to reduce the weight of the connecting plate.

[0015] Preferably, a limiting groove is formed on the inner wall of the limiting block, and the silicon steel long sheet is disposed in the inner wall of the limiting groove.

[0016] Preferably, the limiting groove is a square groove, the fixing shaft is a circular column structure, and the fixing shaft is fixedly connected to the center position of the inner wall of the connecting plate.

[0017] Preferably, a heater is provided on the inner wall of the limiting groove, and the heater is a rectangular strip structure.

[0018] Preferably, the limiting block is used to activate and control the heater to heat the cut surfaces on both sides of the silicon steel long sheet, and two limiting blocks are provided on the left and right sides of each fixed limiting piece.

[0019] This invention provides a silicon steel sheet slitting and cutting device, which relates to intelligent manufacturing equipment industry technology, and has the following beneficial effects:

[0020] 1. By setting up a coating mechanism, this invention can simultaneously and in real time grind the exposed cut surfaces after longitudinal cutting of the silicon steel sheet while the silicon steel sheet is stably transported through the connecting discs on both sides. This process naturally and evenly grinds the burrs, and with the grinding strip inside the groove, the grinding density is further increased. This results in a more uniform and precise grinding of the cut surfaces of the silicon steel sheet, avoiding the problem of excessive burrs on the sides affecting the stability of the transmission process and causing the cutting and transmission to deviate. It also improves the factory quality of the silicon steel sheet after longitudinal cutting.

[0021] 2. This invention, by setting up a coating mechanism, allows the connecting disc to pass through the interior of the lower liquid storage tank when it rotates. The liquid storage tank is pre-filled with anti-oxidation and anti-rust liquid, so the surface of the connecting disc and each grinding strip in the inner wall of the groove will be contaminated with the liquid. As the connecting disc is driven to rotate by the fixed limiting plate to grind the cut surface of the silicon steel long sheet, an anti-oxidation coating is added to the ground surface in real time. This seals the cut surface of the silicon steel long sheet to resist oxidation and prevent rust, so that it will not come into frequent and rapid contact with air during the slitting process. This solves the problem that the side of the silicon steel long sheet is easily oxidized during the working and transportation process after slitting.

[0022] 3. By setting up a liquid coating mechanism, when the fixed limiting plate rotates, the liquid storage box with the counterweight plate will shake due to the small friction. This shaking will cause the liquid in the storage tank inside the liquid storage box to shake within a certain range. The anti-oxidation and rust prevention liquid is better mixed by continuous slight shaking, avoiding the problem of functional degradation of the anti-oxidation and rust prevention liquid caused by sedimentation of the anti-oxidation and rust prevention liquid in the liquid storage box due to long-term static storage.

[0023] 4. By setting up a liquid coating mechanism, when the grinding strip inside the groove is rotated by the groove and the connecting plate, the grinding strip polishes the cut surface of the side of the silicon steel sheet. At the same time, when it descends into the liquid storage tank, it can also move the liquid inside the storage tank. The numerous grinding strips further move and mix the liquid in the storage tank, making the liquid mix more evenly and reducing the problem of uneven coating on the cut surfaces of both sides of the silicon steel sheet caused by uneven mixing.

[0024] 5. This invention, by setting a limiting film-forming mechanism, after the connecting disc polishes and applies rust-preventive liquid through the rolling shaft, it will pass through the right limiting block again. The side of the silicon steel sheet is rapidly heated by the internal heater, allowing the liquid to dry quickly and form a film, creating an air-isolated anti-oxidation protective layer. At the same time, before the silicon steel sheet enters the rolling shaft, it is heated by the heater in the left limiting block, completing the preheating of the cut surfaces on both sides of the silicon steel sheet. This ensures that the cut surfaces have sufficient temperature for the connecting disc to polish them, achieving better polishing accuracy and stability while improving the film-forming speed of the anti-oxidation and rust-preventive liquid.

[0025] 6. This invention, by setting a limiting film-forming mechanism, has a limiting block connected to the connecting plate placed outside the silicon steel sheet through a limiting groove. The upper and lower positions of the limiting block limit the silicon steel sheet, which in turn limits the position of the limiting block. This provides a certain space for the liquid storage box and the limiting block to sway. However, under the restriction of the silicon steel sheet, the limiting block achieves a self-locking effect on the liquid storage box at a certain swaying angle, preventing liquid from accidentally spilling. This further ensures the stability and safety of the equipment operation, and consequently, the quality of the silicon steel sheet slitting and cutting process.

[0026] 7. By setting a limiting film-forming mechanism, when the liquid storage box is slightly shaken from side to side, the rolling strip on the inner wall of the liquid storage tank will roll back and forth on the fixed slide due to the inertia of the left and right swaying, thereby quickly breaking up and dispersing the viscous precipitate attached to the bottom of the inner wall of the liquid storage tank, and further improving the mixing uniformity of the mixture by using the shaking effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the rolling shaft of the present invention;

[0029] Figure 3 This is a schematic diagram of the coating mechanism of the present invention. Figure 1 ;

[0030] Figure 4 This is a schematic diagram of the coating mechanism of the present invention. Figure 2 ;

[0031] Figure 5 This is a partial structural schematic diagram of the coating mechanism of the present invention;

[0032] Figure 6 This is a cross-sectional structural diagram of the liquid storage box of the present invention;

[0033] Figure 7 This is a schematic diagram of the coating mechanism of the present invention. Figure 3 ;

[0034] Figure 8 This is a schematic diagram of the coating mechanism of the present invention. Figure 4 ;

[0035] Figure 9 This is a schematic diagram of the coating mechanism of the present invention. Figure 5 ;

[0036] Figure 10 This is a schematic diagram of the structure of the limiting film-forming mechanism of the present invention. Figure 1 ;

[0037] Figure 11 This is a schematic diagram of the structure of the limiting film-forming mechanism of the present invention. Figure 2 ;

[0038] Figure 12 This is a schematic diagram of the structure of the limiting film-forming mechanism of the present invention. Figure 3 .

[0039] In the diagram: 1. Slitting machine; 2. Rolling shaft; 3. Coating mechanism; 301. Fixed limiting plate; 302. Connecting plate; 303. Groove; 304. Grinding strip; 305. Sliding strip; 306. Liquid storage box; 307. Liquid storage tank; 308. Counterweight plate; 4. Limiting film forming mechanism; 401. Connecting plate; 402. Fixed shaft; 403. Limiting block; 404. Heater; 405. Limiting groove; 406. Rolling strip; 407. Fixed sliding strip; 5. Motor; 6. Silicon steel long sheet. Detailed Implementation

[0040] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: a silicon steel sheet longitudinal slitting and cutting device, including a longitudinal slitting and cutting machine 1, a motor 5 fixedly connected to one side of the longitudinal slitting and cutting machine 1, a rolling shaft 2 fixedly connected to the output end of the motor 5, one end of the rolling shaft 2 passing through the interior of the longitudinal slitting and cutting machine 1 and rotatably connected to the other side of the longitudinal slitting and cutting machine 1 through a bearing, a silicon steel long sheet 6 in contact with the outer wall of the rolling shaft 2, and a coating mechanism 3 provided on the outer wall of the rolling shaft 2;

[0041] The coating mechanism 3 includes:

[0042] Fixed limiting piece 301 is a circular sheet structure. The inner wall of fixed limiting piece 301 is fixedly connected to the outer wall of rolling shaft 2. A connecting plate 302 is fixedly connected to one side of fixed limiting piece 301. A groove 303 is opened on the inner wall of connecting plate 302. Connecting plate 302 plays the role of limiting the position of silicon steel long piece 6.

[0043] Grinding strip 304 is a circular rod-shaped structure. One end of grinding strip 304 is fixedly connected to the inner wall of groove 303. Connecting disc 302 is a circular hollow disc-shaped structure. Grinding strip 304 plays the role of polishing silicon steel long sheet 6.

[0044] After the silicon steel long sheet 6 is longitudinally cut, it is transferred to the rolling shaft 2. The rolling shaft 2 is started by the motor 5 to continue rotating, and the silicon steel long sheet 6 is continued to be transferred to the rear, realizing a series of processes for longitudinally cutting the silicon steel long sheet 6.

[0045] When the silicon steel sheet 6 is tensioned and transported by the rolling shaft 2, it will be separated by the two fixed limiting plates 301 on the left and right sides of the rolling shaft 2, so that the silicon steel sheet 6 can be transported stably without left or right deviation. At the same time, through the grooves 303 on the connecting plates 302 on both sides of the fixed limiting plates 301, the silicon steel sheet 6 can be transported stably through the connecting plates 302 on both sides of the silicon steel sheet 6, and the exposed cut surfaces after longitudinal cutting on both sides of the silicon steel sheet 6 can be ground in real time. The burrs are naturally ground evenly, and with the grinding strips 304 inside the grooves 303, the grinding density is further improved, so that the cut surface of the silicon steel sheet 6 is ground more evenly and with higher precision. This avoids the problem of excessive burrs on the side affecting the stability of the transmission process and causing the problem of material transmission deviation. It also improves the factory quality of the silicon steel sheet 6 after longitudinal cutting.

[0046] Example 2: Please refer to Figure 1-9 Based on Embodiment 1, this invention provides a technical solution: During the slitting and subsequent conveying process, the cut surface of the silicon steel sheet frequently comes into contact with air. Due to the characteristics of silicon steel, the cut surface is highly susceptible to oxidation by oxygen in the air, leading to rust. This not only reduces the quality and performance of the silicon steel sheet, affecting its subsequent use, but may also shorten the product's lifespan and increase the company's production costs.

[0047] Currently, the anti-oxidation treatment of the cut surfaces of silicon steel sheets typically requires transferring them to specialized coating application equipment after slitting. This method not only increases the complexity and time cost of the production process but may also cause secondary damage to the silicon steel sheets during the transfer process, affecting the integrity of the product.

[0048] When using an antioxidant and rust-inhibiting liquid to treat the cut surface of silicon steel long sheets, sedimentation can easily occur because the liquid remains stagnant for extended periods. This sedimentation leads to uneven distribution of the active ingredients in the liquid, resulting in uneven application to the cut surface. This not only affects the antioxidant and rust-inhibiting effect but may also leave some cut surfaces unprotected, leaving them still at risk of oxidation. Therefore, a sliding strip 305, which is an annular strip structure, is fixedly connected to the outer wall of the fixing and limiting plate 301.

[0049] The fixed limiting plate 301 is slidably connected to the liquid storage box 306 via the sliding strip 305. The liquid storage box 306 is a rectangular box structure. The bottom of the liquid storage box 306 is fixedly connected to the counterweight plate 308, which serves as a counterweight.

[0050] The inner wall of the liquid storage box 306 is provided with a liquid storage tank 307, which is filled with an anti-oxidation and anti-rust liquid.

[0051] When the connecting plate 302 rotates, it passes through the interior of the liquid storage tank 307 below. The liquid storage tank 307 is pre-filled with anti-oxidation and anti-rust liquid, so the surface of the connecting plate 302 and each grinding strip 304 in the inner wall of the groove 303 will be contaminated with liquid. As the connecting plate 302 is rotated by the fixed limiting plate 301 to grind the cut surface of the silicon steel long sheet 6, an anti-oxidation coating is added to the ground surface in real time. This seals the cut surface of the silicon steel long sheet 6 to resist oxidation and prevent rust, so that it will not come into frequent and rapid contact with air during the slitting process. This can solve the problem that the side of the silicon steel long sheet 6 is easy to oxidize during the working transmission after slitting.

[0052] The liquid storage box 306, with the counterweight plate 308, can be suspended below the fixed limiting plate 301 via the sliding strip 305 and slidably connected to the fixed limiting plate 301. The rotation of the fixed limiting plate 301 will not affect the stationary state of the liquid storage box 306 and the counterweight plate 308 below. The friction between them is very low and the mutual influence is small. However, when the fixed limiting plate 301 rotates, the small friction will cause the liquid storage box 306 with the counterweight plate 308 to shake to a certain extent. This shaking will cause the liquid in the liquid storage tank 307 inside the liquid storage box 306 to shake to a certain extent. The anti-oxidation and rust prevention liquid is better mixed by continuous slight shaking, which avoids the problem of the anti-oxidation and rust prevention liquid settling in the liquid storage box 306 due to long-term static existence, which would lead to a decrease in the functionality of the anti-oxidation and rust prevention liquid.

[0053] When the grinding strip 304 inside the groove 303 is rotated by the groove 303 and the connecting plate 302, the grinding strip 304 polishes the cut surface of the side of the silicon steel long sheet 6. At the same time, when it descends into the liquid storage tank 307, it can also move the liquid inside the liquid storage box 306. The numerous grinding strips 304 further move and mix the liquid in the liquid storage tank 307, making the liquid mix more evenly and reducing the problem of uneven coating on the cut surfaces of both sides of the silicon steel long sheet 6 due to uneven mixing.

[0054] Example 3: Please refer to Figure 1-12Based on Embodiments 1 and 2, this invention provides a technical solution: When heating the cut surface of silicon steel sheets, traditional heating methods are difficult to guarantee the uniformity of heating. Due to the possible differences in the thickness of the silicon steel sheets and the relative positional relationship between the heater and the cut surface, local overheating or underheating of the cut surface can easily occur, affecting the anti-oxidation treatment effect and polishing quality. At the same time, during the processing, the equipment may be subjected to accidental collisions or vibrations, causing components such as the liquid storage box to shake, which may lead to the spillage of the rust inhibitor, resulting in not only a waste of resources but also potential equipment failure and safety hazards. In addition, the sedimentation problem of the rust inhibitor will also affect its performance and use effect. If it is not resolved in time, it will further reduce the product quality. Therefore, a limiting film-forming mechanism 4 is provided on the outer wall of the counterweight plate 308. The limiting film-forming mechanism 4 includes a connecting plate 401, and a limiting block 403 is fixedly connected to one end of the connecting plate 401. The limiting block 403 is a block structure.

[0055] The connecting plate 401 has an arc-shaped plate structure. A through groove is provided on the inner wall of the connecting plate 401. A fixed shaft 402 is fixedly connected to the inner wall of the through groove. The fixed shaft 402 serves to support and fix the connecting plate 401. The through groove is used to reduce the weight of the connecting plate 401.

[0056] A limiting groove 405 is formed on the inner wall of the limiting block 403, and a silicon steel long piece 6 is set in the inner wall of the limiting groove 405.

[0057] The limiting groove 405 is a square groove, and the fixing shaft 402 is a circular column structure. The fixing shaft 402 is fixedly connected to the center position of the inner wall of the connecting plate 401.

[0058] A heater 404 is provided on the inner wall of the limiting groove 405. The heater 404 is a rectangular strip structure.

[0059] The limiting block 403 is used to start and control the heater 404 to heat the cut surfaces on both sides of the silicon steel long sheet 6. Two limiting blocks 403 are provided on the left and right sides of each fixed limiting piece 301.

[0060] A fixed slide bar 407 is fixedly connected to the bottom of the inner wall of the liquid storage tank 307. A rolling bar 406 is provided on the top of the fixed slide bar 407. A dovetail groove is provided on the outer wall of the rolling bar 406. The outer wall of the rolling bar 406 is slidably connected to the outer wall of the fixed slide bar 407 through the dovetail groove.

[0061] Each silicon steel sheet 6, tensioned and transported by the rolling shaft 2, also passes through the interior of the left and right limit blocks 403. This allows the sides of the silicon steel sheet 6 to be heated by the heaters 404 inside the left and right limit blocks 403. Before being transported to the rolling shaft 2, the silicon steel sheet 6 is heated by the heater 404 of one limit block 403. After being polished and coated with anti-rust liquid by the connecting plate 302 via the rolling shaft 2, it passes through the right limit block 403 again. The heater 404 inside the block rapidly heats the sides of the silicon steel sheet 6, allowing the liquid to dry quickly and form a film, creating an air-isolated anti-oxidation protective layer. At the same time, before entering the rolling shaft 2, the silicon steel sheet 6 is heated by the heater 404 in the left limit block 403, preheating the cut surfaces on both sides of the silicon steel sheet 6. This ensures that the cut surfaces have sufficient temperature for the connecting plate 302 to polish them, achieving better polishing precision and stability while increasing the film-forming speed of the anti-oxidation and anti-rust liquid.

[0062] The limiting block 403 is connected to the counterweight plate 308 via the connecting plate 401. Under the counterweight of the counterweight plate 308, the connecting plate 401 and the limiting block 403 maintain a certain stability. Simultaneously, with a slight sway of the liquid storage box 306, the limiting block 403 also sways slightly, causing the heater 404 in the internal limiting groove 405 to move slightly up and down. This ensures that the cut surface of the silicon steel sheet 6 passing through the limiting groove 405 is evenly and stably heated by the heater 404, avoiding uneven heating due to angle or different thicknesses of the silicon steel sheet 6. Furthermore, as the silicon steel sheet 6 continuously passes through the limiting groove 405 for material handling, it also prevents accidents during processing or damage to the liquid storage box 306. 6. When touched, the liquid storage box 306 is violently shaken, slides and tilts on the sliding bar 305, and spills liquid. This is because the limiting block 403 connected to the connecting plate 401 is placed outside the silicon steel long sheet 6 through the limiting groove 405. The upper and lower positions of the limiting block 403 limit the silicon steel long sheet 6, and the silicon steel long sheet 6 can also limit the position of the limiting block 403 in the same way. This allows the liquid storage box 306 and the limiting block 403 to shake through a certain space. However, under the restriction of the silicon steel long sheet 6, the limiting block 403 achieves a self-locking effect on the liquid storage box 306 at a certain swing angle, preventing liquid from accidentally spilling. This further ensures the stability and safety of the equipment operation, and in turn, ensures the quality of the longitudinal cutting of the silicon steel long sheet 6.

[0063] When the liquid storage box 306 is slightly shaken from side to side, the rolling strip 406 on the inner wall of the liquid storage tank 307 will roll back and forth on the fixed slide bar 407 due to the inertia of the left and right swaying, thereby quickly breaking up and dispersing the viscous sediment attached to the bottom of the inner wall of the liquid storage tank 307, and further improving the mixing uniformity of the mixture by using the shaking effect.

[0064] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A silicon steel sheet slitting and cutting device, comprising a slitting and cutting machine (1), wherein a motor (5) is fixedly connected to one side of the slitting and cutting machine (1), and a rolling shaft (2) is fixedly connected to the output end of the motor (5), wherein one end of the rolling shaft (2) passes through the interior of the slitting and cutting machine (1) and is rotatably connected to the other side of the slitting and cutting machine (1) via a bearing, and a silicon steel long sheet (6) is in contact with the outer wall of the rolling shaft (2), characterized in that: The outer wall of the rolling shaft (2) is provided with a liquid coating mechanism (3); The coating mechanism (3) includes: A fixed limiting piece (301) is a circular sheet structure. The inner wall of the fixed limiting piece (301) is fixedly connected to the outer wall of the rolling shaft (2). A connecting plate (302) is fixedly connected to one side of the fixed limiting piece (301). A groove (303) is provided on the inner wall of the connecting plate (302). The connecting plate (302) serves to limit the position of the silicon steel long sheet (6). Grinding strip (304), the grinding strip (304) is a circular rod-shaped structure, one end of the grinding strip (304) is fixedly connected to the inner wall of the groove (303), the connecting disk (302) is a circular hollow disk-shaped structure, the grinding strip (304) plays the role of polishing the silicon steel long sheet (6); The fixed limiting piece (301) is slidably connected to the liquid storage box (306) via the sliding strip (305). The liquid storage box (306) is a rectangular box structure. A counterweight plate (308) is fixedly connected to the bottom of the liquid storage box (306). The counterweight plate (308) plays a counterweight role. The outer wall of the counterweight plate (308) is provided with a limiting film-forming mechanism (4), the limiting film-forming mechanism (4) includes a connecting plate (401), one end of the connecting plate (401) is fixedly connected to a limiting block (403), the limiting block (403) is a block structure; The inner wall of the limiting block (403) is provided with a limiting groove (405), and the silicon steel long sheet (6) is disposed in the inner wall of the limiting groove (405); The inner wall of the limiting groove (405) is provided with a heater (404), which is a rectangular strip structure.

2. The silicon steel sheet slitting and cutting device according to claim 1, characterized in that: The outer wall of the fixed limiting piece (301) is fixedly connected to a sliding strip (305), which is an annular strip structure.

3. The silicon steel sheet slitting and cutting device according to claim 2, characterized in that: The inner wall of the liquid storage box (306) is provided with a liquid storage tank (307), and the liquid storage tank (307) is filled with an anti-oxidation and anti-rust liquid.

4. The silicon steel sheet slitting and cutting device according to claim 3, characterized in that: The connecting plate (401) is an arc-shaped plate structure. A through groove is provided on the inner wall of the connecting plate (401). A fixed shaft (402) is fixedly connected to the inner wall of the through groove. The fixed shaft (402) serves to support and fix the connecting plate (401). The through groove is used to reduce the weight of the connecting plate (401).

5. The silicon steel sheet slitting and cutting device according to claim 4, characterized in that: The limiting groove (405) is a square groove, and the fixing shaft (402) is a circular column structure. The fixing shaft (402) is fixedly connected to the center position of the inner wall of the connecting plate (401).

6. The silicon steel sheet slitting and cutting device according to claim 5, characterized in that: The limiting block (403) is used to start the control heater (404) to heat the cut surfaces on both sides of the silicon steel long sheet (6). Each of the fixed limiting pieces (301) has two limiting blocks (403) on its left and right sides.

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