A transformer core silicon steel sheet cutting device

Abstract

This invention discloses a transformer core silicon steel sheet cutting device, relating to the field of transformer core silicon steel sheet cutting technology. It includes an upper and lower longitudinal cutting shaft arranged parallel to each other and rotatable relative to each other. Multiple disc cutters for cutting silicon steel sheets and multiple spacers for supporting and separating the disc cutters are staggered on both the upper and lower longitudinal cutting shafts. A lubrication mechanism is located on the feeding side of the longitudinal cutting mechanism, an anti-escape mechanism is located on the discharge side of the longitudinal cutting mechanism, and a blade adjustment mechanism is located on the upper longitudinal cutting shaft. The advantages are: by integrating the lubrication and anti-escape mechanisms, "precise lubrication" and "efficient recovery" are achieved in the cutting process, reducing the frequency of downtime and blade replacement due to tool wear, thereby significantly extending the overall service life of the tools. Combined with online backlash monitoring and the rapid axial fine-tuning function of the blade adjustment mechanism, it can quickly compensate for the decrease in accuracy caused by natural tool wear, extending the effective working time within a single tool replacement cycle.

Description

Technical Field

[0001] This invention relates to the field of transformer core silicon steel sheet cutting technology, and in particular to a transformer core silicon steel sheet cutting device. Background Technology

[0002] In the manufacturing of transformer cores, a slitting process is often used to cut wide silicon steel coils into multiple narrow strips. Currently, commonly used slitting devices mainly consist of slitting shafts arranged in parallel at the top and bottom, and multiple disc cutters installed on them in an alternating manner. The continuous shearing of silicon steel sheets in motion is achieved through the relative rotation of the two shafts.

[0003] Currently, high-speed continuous shearing processes generate a large amount of frictional heat, causing a sharp rise in the temperature of the disc cutter edge, exacerbating tool wear, and even causing silicon steel sheet material to stick to the cutter. This not only seriously affects the tool's service life and increases production costs, but also restricts the continuous operation time of the production line. Secondly, to reduce friction and cool the cutter, oil spraying lubrication is usually used. However, with existing lubrication methods, some oil mist inevitably "misses" the target and diffuses into the surrounding air. The escaped oil mist condenses inside the equipment and on the surface of the silicon steel sheet, polluting the working environment and silicon steel sheet products, wasting lubricating oil, and incurring high subsequent cleaning costs. Furthermore, with normal tool wear, the shearing clearance between the upper and lower disc cutters gradually increases, directly affecting the cutting quality and burr size. Traditional solutions require a complete shutdown, disassembling a large number of blades and spacers for overall replacement or adjustment. This process is time-consuming, resulting in excessive unplanned downtime, low production efficiency, and difficulty in meeting the needs of modern continuous and efficient production.

[0004] Therefore, in order to effectively extend the tool life and improve production efficiency, this invention provides a transformer core silicon steel sheet cutting device. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a transformer core silicon steel sheet cutting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a transformer core silicon steel sheet cutting device, comprising a frame, wherein the frame includes a processing table and two processing seats mounted on the processing table in a left-right distribution.

[0007] The slitting mechanism installed between the two processing seats includes an upper slitting shaft and a lower slitting shaft that are arranged parallel to each other and can rotate relative to each other. Multiple disc cutters for cutting silicon steel sheets and multiple spacers for supporting and separating the disc cutters are staggered on the upper and lower slitting shafts.

[0008] The lubrication mechanism located on the feed side of the slitting mechanism is used to spray cooling lubricating oil mist onto the cutting edge of the disc cutter.

[0009] An escape prevention mechanism is installed on the discharge side of the slitting mechanism to suck up and collect oil mist escaping from the cutting area.

[0010] The blade adjustment mechanism, located on the upper longitudinal shearing shaft, is used to adjust the position of the upper disc blade along the axial direction.

[0011] During the cutting process, the lubrication mechanism and the anti-escape mechanism work together to spray cooling and lubricate the blade with cooling and lubricating oil mist, and perform online suction of the escaped cooling and lubricating oil mist; when the blade clearance is too large, the blade adjustment mechanism can quickly adjust the axis to compensate when the blade wears naturally.

[0012] In the above-mentioned transformer core silicon steel sheet cutting device, the lubrication mechanism includes a mounting frame installed on the processing base and an oil spraying unit set on the mounting frame. The oil spraying unit includes multiple cooling and lubricating oil nozzles facing the cutting point of the disc blade.

[0013] In the above-mentioned transformer core silicon steel sheet cutting device, the escape prevention mechanism includes a support frame installed on the processing base and a mist-absorbing unit and a collection unit set on the support frame.

[0014] In the above-mentioned transformer core silicon steel sheet cutting device, the mist suction unit includes multiple mist suction hoods with funnel-shaped inner walls. The mist suction hoods are set close to the cutting area and connected to an external air pump. The collection unit includes a connecting frame that is engaged with the support frame and an oil collection box that is fixed to the connecting frame. The oil collection box is located below the mist suction hoods and is used to collect condensed oil droplets.

[0015] In the above-mentioned transformer core silicon steel sheet cutting device, the blade adjustment mechanism includes a support unit mounted on the upper longitudinal shearing shaft and an adjustment unit disposed on the support unit.

[0016] In the above-mentioned transformer core silicon steel sheet cutting device, the support unit includes two connecting rings arranged left and right on the upper longitudinal cutting shaft and a connecting seat that can be axially slidably sleeved on the upper longitudinal cutting shaft. The connecting seat is used to support the upper disc cutter and the spacer.

[0017] In the above-mentioned transformer core silicon steel sheet cutting device, the adjustment unit includes multiple lead screws distributed circumferentially and rotatably connected to the connecting ring. The connecting seat is provided with adjustment holes that are threadedly engaged with the lead screws. The adjustment unit also includes a gear set that drives the multiple lead screws to rotate synchronously.

[0018] In the above-mentioned transformer core silicon steel sheet cutting device, the blade adjustment mechanism further includes a stabilizing unit. The stabilizing unit includes multiple movable parts that are circumferentially slidably connected to the connecting ring, and a fixed part that slides with the movable parts is fixed on the connecting seat.

[0019] In the aforementioned transformer core silicon steel sheet cutting device, the blade adjustment mechanism also includes a protective component for covering the connection between the connecting ring and the connecting seat.

[0020] In the above-mentioned transformer core silicon steel sheet cutting device, the processing seat on the left side is slidably and adjustablely mounted on the processing table, while the processing seat on the right side is fixedly mounted on the processing table.

[0021] Compared with existing technologies, the advantages of this invention are: 1. Proactive prevention of abnormal tool wear: By integrating a lubrication mechanism and an anti-escape mechanism, "precise lubrication" and "efficient recovery" are achieved in the cutting process, reducing the frequency of downtime and tool replacement due to tool wear, thereby significantly extending the overall service life of the tool. 2. Online monitoring and rapid compensation for normal tool wear: Combining online backlash monitoring with the rapid axial fine-tuning function of the blade adjustment mechanism, it can quickly compensate for the decrease in accuracy caused by natural tool wear, greatly extending the effective working time within a single tool change cycle, reducing unplanned downtime caused by tool replacement and adjustment, and improving overall production efficiency.

[0022] 2. The cooling and lubricating oil mist is precisely guided to the cutting point of the tool tip, effectively reducing the friction, temperature rise and wear of the disc tool; at the same time, the local micro negative pressure formed by the mist suction unit can capture and recover the escaped oil mist in time, and furthermore, some of the oil mist can re-adhere to the cutting edge, enhancing the lubrication effect.

[0023] 3. During the cutting process, a non-contact laser gap meter is used to monitor the increase in backlash after normal blade wear. The blade adjustment mechanism requires only a short pause, and the adjustment unit drives the connecting seat for high-precision axial fine-tuning, quickly restoring the optimal shearing backlash. This avoids the cumbersome work of traditional devices that require complete shutdown, disassembly, and replacement of numerous blades once wear occurs, transforming long unplanned maintenance downtime into minute-level rapid online adjustments, greatly improving equipment efficiency and production continuity. Attached Figure Description

[0024] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of the overall structure.

[0026] Figure 2 This is a front view schematic diagram of the slitting mechanism.

[0027] Figure 3 This is a schematic diagram of the upper longitudinal shearing shaft, including the spacer and the disc cutter.

[0028] Figure 4 This is a partial structural diagram of the blade adjustment mechanism.

[0029] Figure 5 for Figure 4 A structural diagram from another perspective.

[0030] Figure 6 This is a schematic diagram of the lubrication mechanism.

[0031] Figure 7 A schematic diagram of the escape prevention mechanism.

[0032] Figure 8 This is a partial cross-sectional view of the collection unit.

[0033] Figure 9 This is a schematic diagram of the mist absorption unit.

[0034] In the diagram: 1. Frame; 2. Sliding mechanism; 21. Lower sliding shaft; 22. Upper sliding shaft; 23. Spacer; 24. Disc cutter; 3. Lubrication mechanism; 31. Mounting bracket; 32. Oil spraying unit; 4. Anti-escape mechanism; 41. Support frame; 42. Mist suction unit; 43. Collection unit; 431. Connecting frame; 432. Oil collection box; 5. Blade adjustment mechanism; 51. Support unit; 511. Connecting ring; 512. Connecting seat; 52. Adjustment unit; 521. Lead screw; 522. Adjustment hole; 523. Gear set; 53. Stabilizing unit; 531. Moving part; 532. Fixed part; 54. Protective part. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Reference Figures 1 to 3 A transformer core silicon steel sheet cutting device includes a frame 1. The frame 1 includes a processing table and two processing seats that are distributed on the left and right sides of the processing table. The processing seat on the left side is movably mounted on the processing table and can be slidably adjusted left and right. The processing seat on the right side is fixedly mounted on the processing table.

[0037] A slitting mechanism 2 is provided on both processing seats. The slitting mechanism 2 includes a lower slitting shaft 21 and an upper slitting shaft 22 arranged in parallel. The two processing seats are connected to each other by a motor on the side that is close to each other. Spacers 23 and disc cutters 24 are provided on both the lower slitting shaft 21 and the upper slitting shaft 22. The disc cutters 24 on the lower slitting shaft 21 and the upper slitting shaft 22 are arranged in an alternating manner.

[0038] The wide-width rolled silicon steel sheets used to manufacture transformer cores are first uncoiled by an uncoiler installed at the rear of this device (not shown in the figure, existing technology, and will not be described in detail here), and then straightened and shaped by a multi-roll straightener installed at the rear of this device and in front of the uncoiler (not shown in the figure, existing technology, and will not be described in detail here) to ensure that the wide-width silicon steel sheets are flat and straight when entering this device.

[0039] Wide-width coiled silicon steel sheets enter from back to front between the lower slitting shaft 21 and the upper slitting shaft 22 and are conveyed forward. The lower slitting shaft 21 is driven to rotate counterclockwise by a motor, and the upper slitting shaft 22 is driven to rotate clockwise by a motor. The lower slitting shaft 21 and the upper slitting shaft 22 drive the disc cutter 24 to rotate. The shearing force generated at the intersection of the cutting edges of the corresponding upper and lower disc cutters 24 cuts the wide-width coiled silicon steel sheets during the forward conveying process. The wide-width coiled silicon steel sheets are continuously and synchronously divided into several narrow strips. The separated narrow strips are separated at the exit by a separating guide roller (not shown in the figure, existing technology, not described in detail here) to prevent them from scratching or tangling with each other. Finally, the coiling operation is carried out.

[0040] It is important to note that the projections of the corresponding upper and lower disc cutters 24 in the left-right direction partially overlap (typically 10%-30% of the material thickness). This ensures that the silicon steel sheet is completely cut, and the overlapping area constitutes the cutting zone. To prevent severe compression and friction between the blade side of the disc cutter 24 and the cut or uncut silicon steel sheet, a small side clearance (typically 5%-10% of the material thickness) must be maintained. This small side clearance is usually precisely controlled by the width of the spacer 23.

[0041] Reference Figure 1 and Figure 6 A lubrication mechanism 3 and an anti-escape mechanism 4 are provided between the two processing seats, arranged in a front-to-back pattern. The lubrication mechanism 3 includes a mounting bracket 31 that can be detachably installed on the processing seat. An oil spraying unit 32 is provided on the mounting bracket 31, and the oil spraying unit 32 corresponds to the cutting area. The oil spraying unit 32 includes multiple cooling and lubricating oil nozzles that can be detachably installed on the mounting bracket 31 and hoses that connect the cooling and lubricating oil nozzles to an external oil pump.

[0042] Reference Figure 1 , Figure 7 , Figure 8 and Figure 9The escape prevention mechanism 4 includes a support frame 41 detachably mounted on the processing base. The support frame 41 is equipped with a mist-absorbing unit 42 and a collection unit 43. The mist-absorbing unit 42 corresponds to the cutting area. The mist-absorbing unit 42 includes multiple mist-absorbing hoods that are snapped onto the support frame 41 and a hose connecting the mist-absorbing hoods to an external air pump. The inner wall of the mist-absorbing hoods is flared, wider at the bottom and narrower at the top. The collection unit 43 includes a connecting frame 431 snapped onto the support frame 41. The front side wall of the connecting frame 431 is provided with an oil collection box 432. The oil collection box 432 includes a transverse collection box fixedly connected to the front side wall of the connecting frame 431 and multiple longitudinal collection boxes detachably fixedly mounted to the front side wall of the transverse collection box. The transverse collection boxes are oriented left-right, and their front side walls have oil guide ports. The longitudinal collection boxes correspond to the mist-absorbing unit 42, and their cross-section is L-shaped with the bottom wall of the horizontal section inclined towards the oil guide ports.

[0043] During the cutting process, cooling and lubrication are carried out through the lubrication mechanism 3, and the oil mist condensation and escape are prevented through the anti-escape mechanism 4. The specific operation is as follows: the angle of the cooling lubricating oil nozzle is aligned with the cutting point of the blade tip to ensure that the sprayed oil mist goes straight to the cutting point of the blade tip, so as to cool the blade of the disc cutter 24, reduce friction, reduce wear, and prevent the silicon steel sheet from sticking to the blade.

[0044] It should be noted that the cooling and lubricating oil nozzle is controlled by a micro-lubrication system to accurately spray a very small amount of cooling and lubricating oil mist onto the cutting point of the tool tip. The above-mentioned spraying time and spraying volume data are the results obtained by those skilled in the art through multiple experiments.

[0045] The mist suction unit 42 and the oil spraying unit 32 are positioned in tandem. The mist suction hood is close to the rear of the cutting area, only suctioning the cooling and lubricating oil in the direction of the nozzle and the oil mist diffusion area, creating a localized micro-negative pressure environment. The mist suction hood ensures that the oil mist is immediately "captured" after passing through the cutting area, preventing some of the escaped oil mist from suspending and coalescing on the inner wall of the equipment, the surface of the silicon steel sheet, or other components, and eventually condensing into oil droplets. At the same time, during the suction process, the funnel-shaped inner wall of the mist suction hood forms a localized, directional airflow field. As the oil mist is drawn upward, the area of ​​oil mist flow narrows, and some of the escaped oil mist will re-adhere to the cutting edge of the disc cutter 24, improving the lubrication effect and preventing cutting edge wear during production, thus extending the service life of the cutter.

[0046] Some oil mist condenses on the inner wall of the mist-absorbing hood. After prolonged use, it drips downwards and is collected by the collection unit 43. As it drips, it enters the longitudinal collection box and the transverse collection box in sequence.

[0047] It should be noted that the air volume and air velocity of the air pump are the results obtained by those skilled in the art through multiple experiments to ensure precise flow and air velocity control. In addition, a contact-type cleaning device (such as an electrostatic degreasing roller or a non-woven cloth wiping roller) (not shown in the figure) can be installed at the silicon steel sheet outlet or before winding to remove any trace amounts of oil film that may remain on the surface.

[0048] Reference Figures 1 to 5 A blade adjustment mechanism 5 is provided on the upper slitting shaft 22, and the blade adjustment mechanism 5 includes a support unit 51 and an adjustment unit 52 and a stabilizing unit 53 provided on the support unit 51. The support unit 51 includes a ring-shaped connecting ring 511 and a connecting seat 512. The connecting ring 511 is symmetrically fixed to the upper slitting shaft 22 by bolts, and the connecting seat 512 is detachably sleeved on the outer wall of the middle part of the upper slitting shaft 22. The connecting seat 512 is axially slidably connected to the outer wall of the middle part of the upper slitting shaft 22. A protective member 54 is fixedly assembled on both the connecting ring 511 and the connecting seat 512. The protective member 54 consists of two semi-circular ring covers that can be interlocked and are distributed front to back. The connection between the connecting ring 511 and the connecting seat 512 is protected by the protective member 54.

[0049] The lower spacer 23 and disc cutter 24 are detachably fitted onto the outer wall of the lower slitting shaft 21; the upper spacer 23 and disc cutter 24 are connected to the upper slitting shaft 22 through the support unit 51. The connecting ring 511 and the connecting seat 512 together form an installation module. First, the spacer 23 and disc cutter 24 are detachably fitted onto the outer wall of the connecting seat 512. Then, the connecting ring 511 and the connecting seat 512 are fitted onto the outer wall of the upper slitting shaft 22. The connecting ring 511 is fixed to the upper slitting shaft 22 by bolts. The connecting seat 512 can move left and right relative to the upper slitting shaft 22 and the connecting ring 511. After the connecting ring 511 and the connecting seat 512 are connected with the assistance of the stabilizing unit 53 and the protective part 54, the installation of the upper spacer 23 and disc cutter 24 is completed. It should be noted that the cross-section of the connecting seat 512 is I-shaped and the connecting seat 512 is a detachable structure to facilitate the connection and installation of the spacer 23 and the disc cutter 24.

[0050] Reference Figures 1 to 5 The adjustment unit 52 includes multiple lead screws 521 distributed circumferentially. The multiple lead screws 521 are rotatably connected to the outer wall of the connecting ring 511 near the connecting seat 512. The outer wall of the connecting seat 512 near the connecting ring 511 has an adjustment hole 522 that corresponds to the lead screw 521 and is threadedly connected. A gear set 523 is provided on the side of the connecting ring 511 away from the connecting seat 512. The gear set 523 includes multiple gear 1 that corresponds to and is fixedly connected to the lead screw 521, a gear ring that meshes with the multiple gear 1, and a gear 2 that meshes with the top wall of the gear ring. The gear 2 is rotatably connected to the side wall of the connecting ring 511 and is driven to rotate by a motor.

[0051] Reference Figures 1 to 5 The stabilizing unit 53 includes multiple movable parts 531 distributed circumferentially. The movable parts 531 are staggered with the lead screw 521. The movable parts 531 are radially slidably connected to the outer wall of the connecting ring 511 near the connecting seat 512. The outer wall of the connecting seat 512 near the connecting ring 511 is fixedly connected to a fixing part 532 that is adapted to the movable part 531. The movable part 531 and the fixing part 532 are slidably connected. The protective part 54 circumferentially limits the movable part 531 in the initial state, preventing the movable part 531 from sliding outward radially and detaching from the connecting ring 511.

[0052] During the cutting process, a non-contact laser gap meter (existing equipment, not detailed here, not shown in the figure) is used for process monitoring. The laser triangulation method is used to form a light spot on the surface of the object being measured by a laser beam. The movement of the imaging point on the position detector by the reflected light is used to calculate the change in side gap or distance through precise geometric trigonometric relationships. It has the characteristics of non-contact, high precision and high speed.

[0053] After a period of cutting, the non-contact laser gap meter detects that the side clearance between the blades of the two disc blades 24 has increased due to wear. At this point, the machine is briefly paused, and the position of the upper disc blade 24 is finely adjusted using the blade adjustment mechanism 5 to adjust the blade side clearance. The specific operation is as follows: If the positions of the upper and lower disc blades 24 are as follows... Figure 4 As shown, when the side clearance between the two disc cutters 24 increases, the position of the upper disc cutter 24 is slightly adjusted to the right.

[0054] The motor drives gear two to rotate, which in turn drives gear ring to rotate. Gear ring rotation drives gear one to rotate, which in turn drives lead screw 521 to rotate. Lead screw 521 rotates within adjustment hole 522. Since connecting ring 511 is fixedly installed on upper sliding shaft 22 by bolts and connecting seat 512 is slidably installed on the outer wall of the middle part of upper sliding shaft 22, the rotation of lead screw 521 drives connecting seat 512 to move spacer 23 and disc cutter 24 for fine adjustment. This transforms long-term unplanned maintenance downtime into minute-level rapid online adjustment, greatly improving the effective operating rate of equipment and production continuity.

[0055] It should be noted that the lead screw 521 on the left and the lead screw 521 on the right rotate in opposite directions to drive the connecting seat 512 between the two connecting rings 511 to move to the left or right. The lead screw 521 is a high-precision fine-tuning lead screw, and the tooth pitch of gear one, gear ring and gear two of gear set 523, as well as the rotational torque and speed of the drive motor, are all results obtained by those skilled in the art through numerous experiments.

[0056] Between the connecting ring 511 and the connecting seat 512, in addition to the support of the upper sliding shaft 22 and the connection of the lead screw 521, the stabilizing unit 53 plays an auxiliary connecting role. When the connecting seat 512 is adjusted, the movable part 531 slides relative to the fixed part 532, and simultaneously slides radially on the side wall of the connecting ring 511 to accommodate the movement of the connecting seat 512, ensuring that multiple connections are maintained between the connecting ring 511 and the connecting seat 512, thus improving the stability of the connection between them. It should be noted that the connecting ring 511 has slots to facilitate the installation of the movable part 531.

[0057] Current equipment suffers from blade wear after prolonged use, necessitating machine shutdown for blade replacement and maintenance. The blade replacement process involves removing multiple spacers 23 and multiple disc blades 24, followed by the installation of new blades, resulting in significant downtime and impacting production efficiency. This invention, compared to traditional cutting devices, adds a lubrication mechanism 3, an anti-escape mechanism 4, and a blade adjustment mechanism 5. While this increases production costs, it prevents blade wear during production, extends blade life, and monitors the process using a non-contact laser gap meter. Upon detecting blade backlash, a short stop is made for rapid fine-tuning, improving production efficiency and economic returns. Therefore, the increased production costs are negligible compared to the resulting benefits.

[0058] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A transformer core silicon steel sheet cutting device, characterized in that, include: The frame includes a processing table and two processing seats mounted on the processing table in a left-right arrangement; The slitting mechanism installed between the two processing seats includes an upper slitting shaft and a lower slitting shaft that are arranged in parallel and can rotate relative to each other. Multiple disc cutters for cutting silicon steel sheets and multiple spacers for supporting and separating the disc cutters are staggered on the upper slitting shaft and the lower slitting shaft. The lubrication mechanism located on the feed side of the slitting mechanism is used to spray cooling lubricating oil mist onto the cutting edge of the disc cutter. An escape prevention mechanism is installed on the discharge side of the slitting mechanism to suck up and collect oil mist escaping from the cutting area; The blade adjustment mechanism, which is set on the upper longitudinal shearing shaft, is used to adjust the position of the upper disc blade along the axial direction; During the cutting process, the lubrication mechanism and the anti-escape mechanism work together to spray cooling lubricating oil mist onto the blade for cooling and lubrication, and to perform online suction of the escaped cooling lubricating oil mist; when the blade clearance is too large, the blade adjustment mechanism can quickly adjust the axis to compensate for the natural wear of the blade. The escape prevention mechanism includes a support frame mounted on the processing base, and a fog-absorbing unit and a collection unit disposed on the support frame; The mist-absorbing unit includes multiple mist-absorbing hoods with funnel-shaped inner walls. The mist-absorbing hoods are positioned close to the cutting area and connected to an external air pump. The collection unit includes a connecting frame that engages with the support frame and an oil collection box that is fixed to the connecting frame. The oil collection box is located below the mist-absorbing hoods and is used to collect condensed oil droplets.

2. The transformer core silicon steel sheet cutting device according to claim 1, characterized in that, The lubrication mechanism includes a mounting bracket installed on the machining base and an oil spraying unit disposed on the mounting bracket. The oil spraying unit includes multiple cooling and lubricating oil nozzles facing the cutting point of the disc cutting edge.

3. The transformer core silicon steel sheet cutting device according to claim 1, characterized in that, The blade adjustment mechanism includes a support unit mounted on the upper slitting shaft and an adjustment unit disposed on the support unit.

4. The transformer core silicon steel sheet cutting device according to claim 3, characterized in that, The support unit includes two connecting rings arranged left and right on the upper longitudinal shear shaft and a connecting seat that can be axially slidably sleeved on the upper longitudinal shear shaft. The connecting seat is used to support the upper disc cutter and spacer.

5. A transformer core silicon steel sheet cutting device according to claim 4, characterized in that, The adjustment unit includes multiple lead screws distributed circumferentially and rotatably connected to the connecting ring. The connecting seat has adjustment holes that are threadedly engaged with the lead screws. The adjustment unit also includes a gear set that drives the multiple lead screws to rotate synchronously.

6. The transformer core silicon steel sheet cutting device according to claim 4, characterized in that, The blade adjustment mechanism further includes a stabilizing unit, which comprises multiple movable parts that are circumferentially slidably connected to the connecting ring, and a fixing part that slides with the movable parts is fixed on the connecting seat.

7. A transformer core silicon steel sheet cutting device according to claim 4, characterized in that, The blade adjustment mechanism also includes a protective component for covering the connection between the connecting ring and the connecting seat.

8. The transformer core silicon steel sheet cutting device according to claim 1, characterized in that, The machining base on the left can be slidably and adjustably mounted on the machining table, while the machining base on the right is fixedly mounted on the machining table.

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