Multi-stage buffering steel belt shearing equipment

Abstract

The utility model relates to multi-stage buffering steel belt shearing equipment which comprises a coil feeding device, a shearing device, a shearing device and a shearing device. The slitting and slitting device comprises an upper shearing roller, a lower shearing roller and a lifting device for controlling the upper shearing roller to move up and down, and the lifting device controls the upper shearing roller to move up and down so as to adjust the distance between the upper shearing roller and the lower shearing roller; the winding device is located on the steel belt output side of the slitting and longitudinal shearing device, and the roll feeding device, the slitting and longitudinal shearing device and the winding device are sequentially arranged in parallel in an aligned mode; buffering areas are formed between the roll feeding device and the slitting and slitting device and between the slitting and slitting device and the rolling device in a spaced mode respectively, and steel strips located in the buffering areas are in a relaxed and drooping state. The device has the effect of relieving tension fluctuation of the steel belt caused by different rotating speeds of all the components.

Description

Technical Field

[0001] This application relates to the field of steel strip cutting equipment, and in particular to a multi-stage buffer steel strip cutting equipment. Background Technology

[0002] Currently, steel strip slitting equipment is widely used in the metal processing industry, especially in the slitting and coiling of steel strips. With the improvement of industrial automation, steel strip slitting equipment plays a crucial role in improving production efficiency and reducing labor costs. Traditional steel strip slitting equipment cuts wide steel strips into multiple narrow strips to meet the needs of different application scenarios, providing important material support for the manufacturing industry. However, with the diversification of market demands and the continuous improvement of requirements for production efficiency and quality, existing steel strip slitting equipment faces new challenges.

[0003] Currently, the industry commonly employs the following techniques for slitting and coiling steel strips: unwinding using an unwinding mechanism, slitting the strip using upper and lower shearing rollers in a shearing mechanism, and coiling the slit strip using a coiling mechanism. However, with these techniques, the varying speeds of the different mechanisms during slitting result in inconsistent tension on the steel strip as it moves, easily leading to decreased slitting accuracy due to tension fluctuations and affecting product quality. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a multi-stage buffer steel strip cutting device.

[0005] The multi-stage buffer steel strip shearing equipment provided in this application adopts the following technical solution: The multi-stage buffer steel strip shearing equipment includes:

[0006] A winding feeding device, which includes a feeding roller and two clamping rollers;

[0007] The slitting and longitudinal cutting device includes an upper shearing roller, a lower shearing roller, and a lifting device for controlling the up and down movement of the upper shearing roller. The lifting device controls the up and down movement of the upper shearing roller to adjust the distance between it and the lower shearing roller.

[0008] The winding device is located on the steel strip output side of the slitting and slitting device, and the winding device, the feeding device, the slitting and slitting device and the winding device are arranged in parallel alignment in sequence.

[0009] Buffer zones are formed between the coil feeding device and the slitting and shearing device, and between the slitting and shearing device and the coiling device, respectively, and the steel strip located in the buffer zone is in a relaxed and drooping state.

[0010] By adopting the above technical solution, the feeding device, slitting device, and winding device are arranged in parallel alignment, and the design of two buffer zones allows the steel strip to effectively absorb and release tension changes during processing. This design not only avoids breakage or deformation of the steel strip due to uneven tension during high-speed operation, but also improves the stability of equipment operation and extends its service life. The presence of the buffer zones ensures a smooth transition of the steel strip during feeding and winding, further improving slitting accuracy and production efficiency.

[0011] Preferably, the upper shearing roller is provided with a first blade assembly detachably connected thereto, and the lower shearing roller is provided with a second blade assembly detachably connected thereto, wherein the first blade assembly and the second blade assembly are parallel to each other and staggered vertically.

[0012] By adopting the above technical solution, the first and second blade sets are respectively installed on the upper and lower shearing rollers, and the two are detachably connected, facilitating the replacement or adjustment of the blade sets according to actual needs. The first and second blade sets are parallel to each other and staggered vertically, enabling precise shearing of the steel strip when it passes through the slitting and slitting device, effectively improving shearing accuracy and efficiency while reducing material waste.

[0013] Preferably, the first cutter group and the second cutter group are composed of multiple roller cutters evenly spaced apart, and a bushing is provided between each roller cutter. The surfaces of the upper shearing roller and the lower shearing roller are provided with T-shaped grooves, and the inner walls of the roller cutters and the bushings are provided with T-shaped protrusions that cooperate with the T-shaped grooves.

[0014] By adopting the above technical solution, the first and second blade groups on the upper and lower shearing rollers of the multi-stage buffer steel strip shearing equipment consist of multiple roller blades evenly spaced, with bushings installed between each roller blade. This structure effectively improves the stability of the shearing process, avoids interference between adjacent roller blades, and the bushings also reduce wear and extend the service life of the equipment. Furthermore, the T-shaped grooves on the surfaces of the upper and lower shearing rollers cooperate with the T-shaped protrusions on the inner walls of the roller blades and bushings, ensuring the stability of the blade assembly installation and preventing loosening during high-speed shearing, thereby guaranteeing shearing accuracy and quality.

[0015] Preferably, it also includes a waste collection unit, which is located between the slitting device and the winding device. The waste collection unit includes a waste filament collection device and a burr removal device. The waste filament collection device is located close to the slitting device, and the burr removal device is located close to the winding device.

[0016] By adopting the above technical solution, the multi-stage buffer steel strip slitting equipment adds a waste collection unit between the slitting and winding devices, which can effectively collect waste wires and burrs generated during the steel strip slitting process. The waste wire collection device is located close to the slitting device to collect waste wires generated during slitting in a timely manner, preventing waste wires from scattering and affecting the production environment and equipment operation. The burr removal device is located close to the winding device to remove edge burrs before the steel strip is wound, improving the quality of the finished steel strip. This layout design is reasonable and improves the overall working efficiency and cleanliness of the equipment.

[0017] Preferably, the waste filament collection device includes a guide, a collection bracket, and a waste filament winding component. The guide and the waste filament winding component are installed on both sides of the collection bracket. The guide includes a guide cylinder, a guide rod, a mounting block, and two auxiliary rollers. The guide rod is connected to the guide cylinder, and the auxiliary rollers are installed parallel to each other in the mounting block. The guide cylinder drives the mounting block to move along the guide rod.

[0018] By adopting the above technical solution, the waste filament collection device can effectively collect waste generated during the slitting process. Specific effects are as follows: 1. The collection bracket provides a stable support structure for the waste filament collection device, ensuring the reliable operation of the entire device; 2. The guide design allows the waste filament to be precisely guided to the waste filament winding component, preventing waste from scattering or accumulating; 3. The guide cylinder drives the mounting block to move along the guide rod, enabling flexible adjustment of the auxiliary roller position; 4. The auxiliary roller helps reduce the frictional resistance of the waste filament during transmission, improving waste collection efficiency and stability.

[0019] Preferably, the burr removal device includes two spaced-apart collecting rollers and a collecting groove disposed below the two collecting rollers. Each collecting roller has a plurality of detachable spaced-apart scrapers on its surface, and the interval between each scraper is equal to the width of the steel strip after it is divided.

[0020] By adopting the above technical solution, the burr removal device, through the installation of multiple detachable and spaced-apart scrapers on the surface of the collecting roller, can accurately remove the burrs from the separated steel strips, preventing them from affecting subsequent processing or product quality. Simultaneously, the spacing between the scrapers is equal to the width of the separated steel strips, ensuring that the burrs on each strip are effectively processed, improving processing efficiency and precision. Furthermore, the collecting trough is located below the collecting roller, facilitating the centralized collection of scraped burr waste and maintaining a clean working environment.

[0021] Preferably, the lifting device includes a support, a cylinder, a guide rod, and a load-bearing block. The cylinder is fixedly installed on the support, and the two ends of the guide rod are respectively connected to the cylinder and the load-bearing block.

[0022] By adopting the above technical solution, precise lifting and lowering control of the upper shearing roller is achieved. The cylinder is fixed on the support, and the cooperation between the guide rod and the bearing block ensures the stability of the upper shearing roller during the lifting process, avoiding the degradation of steel strip shearing quality caused by uneven shearing force. The bearing block provides the installation foundation for the upper and lower shearing rollers.

[0023] Preferably, the support includes a fixed seat and a movable seat, the bearing block connected to the fixed seat is provided with an installation sleeve, the bottom of the movable seat is provided with a slide rail, the movable seat moves closer to or further away from the upper shearing roller through the slide rail, and the bearing block connected to the movable seat is fixedly installed with a clamping sleeve.

[0024] By adopting the above technical solutions, the slide rail configuration allows the movable seat to move closer to or further away from the upper and lower shearing rollers, improving the flexibility and adaptability of the equipment. The installation of the clamping sleeve allows for the fixation of the upper and lower shearing rollers after the movable seat position is adjusted, ensuring their stability during operation and preventing positional deviations from affecting shearing accuracy. The mounting sleeve on the bearing block further improves the installation accuracy of the upper shearing roller, thereby enhancing the overall performance and reliability of the slitting equipment.

[0025] Preferably, the winding device includes an alignment mechanism and a winding roller. The alignment mechanism includes an alignment member and a height adjustment member. The alignment member has a plurality of spaced partitions axially arranged on its surface. The height adjustment member is used to adjust the relative height between the alignment member and the winding roller.

[0026] By adopting the above technical solution, the alignment mechanism in the winding device can adjust the relative height between the alignment component and the winding roller through the height adjustment component, so that the slit steel strip remains neatly arranged during the winding process. The multiple spaced partitions on the surface of the alignment component effectively prevent the steel strip from shifting or tangling during winding, thereby improving winding quality and ensuring the stability and consistency of the steel strip winding.

[0027] Preferably, it also includes a plurality of auxiliary drive rollers, which are respectively disposed on the sides of the slitting slitting device, the waste filament collection device and the burr removal device, and a positioning roller is also disposed on the side of the slitting slitting device away from the waste collection unit.

[0028] By adopting the above technical solution, the auxiliary drive rollers are respectively set on the sides of the slitting and shearing device, the waste wire collection device, and the burr removal device, which can effectively support and guide the steel strip, reduce the deviation and slippage of the steel strip during the transmission process, and improve the stability of equipment operation. The positioning roller is set on the side of the slitting and shearing device away from the waste collection unit, which can accurately correct the steel strip and ensure the accurate position of the steel strip during the shearing process, thereby improving the shearing accuracy and quality.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By setting two buffer zones and keeping the steel strip in the buffer zones in a relaxed and drooping state, the tension fluctuations during the steel strip conveying process can be effectively alleviated, the cutting accuracy can be improved, and the product quality can be ensured.

[0031] 2. The slitting and longitudinal shearing device uses an upper shearing roller and a lower shearing roller in combination, and the distance between the two is adjusted by a lifting device, which realizes flexible slitting operation and adapts to the slitting needs of steel strips of different widths;

[0032] 3. The winding device, slitting device, and winding device are arranged in parallel and aligned in sequence, which optimizes the equipment layout and improves production efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the multi-stage buffer steel strip shearing device provided in the embodiments of this application;

[0034] Figure 2 This is a schematic diagram of the structure of the multi-stage buffer steel strip shearing device (without steel strip) provided in the embodiments of this application;

[0035] Figure 3 yes Figure 2 A plan view of the slitting and longitudinal cutting device;

[0036] Figure 4 yes Figure 2 Schematic diagram of the slitting and cutting device;

[0037] Figure 5 This is a schematic diagram of the T-shaped groove structure;

[0038] Figure 6 This is a structural diagram of the T-shaped protrusion;

[0039] Figure 7 yes Figure 2 Enlarged diagram of part A in the middle;

[0040] Figure 8 yes Figure 2 Enlarged diagram of section B;

[0041] Figure 9 yes Figure 2 Enlarged diagram of section C.

[0042] Explanation of reference numerals in the attached drawings: 1. Feeding device; 11. Unloading roller; 12. Pinch roller; 2. Slitting slitting device; 21. Upper shearing roller; 211. First cutter group; 2111. Roller cutter; 2112. Bushing; 2113. T-groove; 2114. T-protrusion; 22. Lower shearing roller; 221. Second cutter group; 23. Lifting device; 231. Support; 2311. Fixed seat; 2312. Movable seat; 232. Cylinder; 233. Guide rod; 234. Bearing block; 235. Mounting sleeve; 236. Slide rail; 237. Clamping sleeve; 3. Rewinding device; 31. Alignment mechanism; 31 1. Alignment component; 312. Height adjustment component; 3121. Support frame; 3122. Limiting rod; 3123. Rotating rod; 3124. Adjusting cylinder; 313. Partition plate; 32. Take-up roller; 4. Buffer zone; 5. Waste collection unit; 51. Waste filament collection device; 511. Guide component; 5111. Guide cylinder; 5112. Guide rod; 5113. Mounting block; 5114. Auxiliary roller; 512. Collection bracket; 513. Waste filament take-up component; 52. Rough edge scraping device; 521. Collection roller; 522. Collection trough; 523. Scraper; 6. Auxiliary drive roller; 7. Positioning roller; 8. Motor. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0044] This application discloses a multi-stage buffer steel strip cutting device.

[0045] refer to Figure 1 The multi-stage buffer steel strip slitting equipment includes a coil feeding device 1, a slitting and longitudinal cutting device 2, a winding device 3, a waste collection unit 5, and multiple sets of auxiliary drive rollers 6. The coil feeding device 1, the slitting and longitudinal cutting device 2, the winding device 3, and the waste collection unit 5 are each connected to a motor 8.

[0046] Buffer zones 4 are formed between the winding feeding device 1 and the slitting and cutting device 2, and between the slitting and cutting device 2 and the winding device 3.

[0047] The feeding device 1, the slitting and shearing device 2, and the winding device 3 are arranged in sequence and aligned. The steel strip located in the buffer zone 4 is in a relaxed and drooping state, which effectively alleviates the tension change of the steel strip, improves the shearing accuracy and production efficiency.

[0048] Specifically, the feeding device 1 includes a feed roller 11 and two pinch rollers 12. The feed roller 11 is used to store the steel strip to be cut, and the cooperation between the two can ensure the smooth transmission of the steel strip. The pinch rollers 12 can be made of metal or rubber to increase friction.

[0049] Buffer zone 4 places the steel strip in a relaxed, drooping state, effectively mitigating tension changes during transport. For example, in buffer zone 4 between the feeding device 1 and the slitting device 2, the appropriate relaxation of the steel strip can be achieved by adjusting the speed of the feeding device 1. Similarly, in buffer zone 4 between the slitting device 2 and the winding device 3, the transport state of the steel strip can be further optimized by adjusting the traction force of the winding device 3. This double buffer zone 4 design not only significantly improves slitting accuracy but also effectively avoids problems such as material deformation or jamming. The length of buffer zone 4 along the steel strip's extension direction is set such that the steel strip droops below the processing plane of the steel strip.

[0050] refer to Figure 2 Auxiliary drive rollers 6 are respectively installed on the sides of the slitting and slitting device 2, the winding device 3, and the waste collection unit 5. A positioning roller 7 is also installed on the side of the slitting and slitting device 2 away from the waste collection unit 5. The installation of auxiliary drive rollers 6 effectively improves the transmission efficiency of the steel strip between the various functional devices and reduces unnecessary friction and wear. The use of positioning rollers 7 further ensures the correct position of the steel strip in the slitting and slitting device 2, thereby avoiding slitting deviation.

[0051] refer to Figure 2 The slitting and longitudinal shearing device 2 includes an upper shearing roller 21, a lower shearing roller 22, and a lifting device 23 that controls the up and down movement of the upper shearing roller 21.

[0052] The combination of the upper shearing roller 21 and the lower shearing roller 22 constitutes the core part of the shearing mechanism. The upper shearing roller 21 can adjust its distance from the lower shearing roller 22 under the action of the lifting device 23 to adapt to the shearing of steel strips of different thicknesses.

[0053] refer to Figure 3 and Figure 4 The upper shearing roller 21 can be made of an alloy material with high surface hardness, while the lower shearing roller 22 can be made of carbon steel with good wear resistance. The distance between the two is adjusted by a lifting device 23, which mainly includes a support 231, a cylinder 232, a guide rod 233, a bearing block 234, and a mounting sleeve 235.

[0054] Specifically, support 231 provides the overall mounting base, including a fixed base 2311 and a movable base 2312. Cylinder 232 provides power, guide rod 233 ensures the linear movement of the upper shear roller 21, and bearing block 234 serves as a connection and support. Mounting sleeve 235 is mounted on the bearing block 234 connected to the fixed base 2311. The upper shear roller 21 and lower shear roller 22 are engaged in the mounting sleeve 235, which provides support and positioning for the upper and lower shear rollers 21 and 22. Through this structural design, the upper shear roller 21 can accurately move closer to or further away from the lower shear roller 22, thus adapting to different slitting requirements.

[0055] refer to Figures 4-6 Specifically, a first blade group 211 is provided on the upper shearing roller 21, and a second blade group 221 is provided on the lower shearing roller 22. Both the first blade group 211 and the second blade group 221 consist of multiple roller blades 2111 evenly spaced apart, with a bushing 2112 between each roller blade 2111. T-shaped grooves 2113 are provided on the surfaces of both the upper shearing roller 21 and the lower shearing roller 22, and T-shaped protrusions 2114 that mate with the T-shaped grooves 2113 are provided on the inner walls of the roller blades 2111 and the bushings 2112.

[0056] Specifically, the arrangement of the first cutter group 211 and the second cutter group 221 makes the slitting process more flexible and precise. The number of roller cutters 2111 can be increased or decreased to adapt to different types of slitting tasks. The use of bushings 2112 ensures the clearance between adjacent roller cutters 2111. Furthermore, the mating design of the T-groove 2113 and T-protrusion 2114 ensures a stable connection between the first cutter group 211 and the second cutter group 221, while also facilitating quick disassembly and replacement. This modular design greatly improves the equipment's maintenance efficiency and adaptability.

[0057] refer to Figure 3 and Figure 4 The slitting and longitudinal cutting device 2 also includes a slide rail 236 disposed at the bottom of the movable seat 2312 and a clamping sleeve 237 sleeved on the upper shearing roller 21 and the lower shearing roller 22 near the movable seat 2312. A motor 8 electrically connected to the movable seat 2312 controls the movable seat 2312 to move on the slide rail 236 to approach or move away from the fixed seat 2311. The clamping sleeve 237 is used to enhance the connection stability between the roller cutter 2111 and the bushing 2112. When the movable seat 2312 approaches the fixed seat 2311, the clamping sleeve 237 moves with the movable seat 2312 and thus presses against the first cutter group 211 and the second cutter group 221; when the movable seat 2312 moves away from the fixed seat 2311, the clamping sleeve 237 moves with the movable seat 2312 and thus disassembles the first cutter group 211 and the second cutter group 221.

[0058] refer to Figure 1 and Figure 2The winding device 3 includes an alignment mechanism 31 and a winding roller 32. The alignment mechanism 31 prevents the steel strip from shifting or tangling during winding, thereby improving the winding quality and ensuring the stability and consistency of the steel strip winding.

[0059] Specifically, the alignment mechanism 31 includes an alignment component 311 and an adjustment component 312. The alignment component 311 is a roller, and a plurality of spaced partitions 313 are axially arranged on the surface of the alignment component 311. The spacing between adjacent partitions 313 can be adjusted to be consistent with the width of the sheared steel strip.

[0060] The height adjustment component 312 is used to adjust the relative height between the alignment component 311 and the winding roller 32. The winding device 3 is connected to a motor 8, which drives the winding roller 32 to rotate and thus wind up the steel strip.

[0061] refer to Figure 9 Specifically, the alignment mechanism 31 is designed to ensure that the slit steel strip maintains good alignment during the winding process. For example, the spacing of the partitions 313 can be adjusted according to the width of the steel strip to adapt to different slitting tasks. The height adjustment component 312 can flexibly adjust the height of the alignment component 311 to further optimize the winding effect of the steel strip. In this embodiment, the height adjustment component 312 includes a support frame 3121, a limiting rod 3122, a rotating rod 3123, and an adjusting cylinder 3124. The limiting rod 3122 is vertically arranged on the support frame 3121, the rotating rod 3123 is rotatably connected to the support frame 3121, and the adjusting cylinder 3124 is located at the end of the limiting rod 3122 that is not connected to the support frame 3121. Specifically, the two ends of the alignment member 311 are fixed on the rotating rod 3123. The rotating rod 3123 drives the alignment member 311 to rotate relative to the support frame 3121 to move the alignment member 311 away from or place it on the limiting rod 3122. Furthermore, when the alignment member 311 is placed on the limiting rod 3122, the adjusting cylinder 3124 adjusts the relative distance between the alignment member 311 and the take-up roller 32.

[0062] refer to Figure 1 and Figure 7 The waste collection unit 5 includes a waste filament collection device 51 and a burr removal device 52. The waste filament collection device 51 is located near the slitting and cutting device 2, and the burr removal device 52 is located near the winding device 3. The waste filament collection device 51 includes a collection bracket 512, a guide member 511, and a waste filament winding member 513. The guide member 511 consists of a guide cylinder 5111, a guide rod 5112, a mounting block 5113, and two auxiliary rollers 5114. The guide cylinder 5111 drives the mounting block 5113 to move along the guide rod 5112, thereby achieving effective guidance and collection of waste filament.

[0063] For example, the guide cylinder 5111 can be a high-precision servo cylinder to ensure stable transmission of waste wire. The coordinated design of the guide rod 5112 and the mounting block 5113 can effectively reduce the shaking and accumulation of waste wire during transmission. The auxiliary roller 5114 is used to further guide the waste wire into the waste wire winding unit 513. The motor 8 drives the waste wire winding unit 513 to rotate and wind up the waste wire, thereby realizing centralized processing of waste materials.

[0064] refer to Figure 8 The burr removal device 52 includes two spaced-apart collecting rollers 521 and a collecting trough 522 disposed below the two collecting rollers 521. Each collecting roller 521 has multiple detachable, spaced-apart scrapers 523 on its surface, the spacing between the scrapers 523 being equal to the width of the separated steel strip. This design ensures that the burrs are completely scraped off and fall smoothly into the collecting trough 522. For example, the scrapers 523 can be made of wear-resistant ceramic material to extend their service life. The collecting trough 522 can be selected in different capacities according to actual needs, facilitating the unified disposal of waste.

[0065] The implementation principle of the multi-stage buffer steel strip slitting device in this application embodiment is as follows: The steel strip is released by the unloading roller 11 of the feeding device 1, and the clamping roller 12 ensures that the steel strip is smoothly transported to the buffer zone 4. The steel strip is in a relaxed and drooping state in the buffer zone 4, effectively alleviating tension changes. Subsequently, the steel strip enters the slitting slitting device 2, where the upper shearing roller 21 and the lower shearing roller 22 work together. The distance between them is adjusted by the lifting device 23. The number of bushings 2112 between the roller cutters 2111 is adjusted according to different task requirements, thereby adjusting the spacing between the roller cutters 2111 to complete the precise slitting task. The waste generated during the slitting process is centrally processed by the waste collection unit 5, and the burr removal device 52 further removes the burrs on the edge of the steel strip. Finally, the slitting steel strip is re-adjusted in tension state through the buffer zone 4 and enters the winding device 3. The alignment mechanism 31 and the collecting roller 521 ensure the neatness and efficiency of the winding process.

[0066] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-stage buffer steel strip shearing device, characterized in that, include: The winding feeding device (1) includes a feeding roller (11) and two clamping rollers (12); The slitting and longitudinal cutting device (2) includes an upper shearing roller (21), a lower shearing roller (22), and a lifting device (23) that controls the upper shearing roller (21) to move up and down. The lifting device (23) controls the upper shearing roller (21) to move up and down to adjust the distance between it and the lower shearing roller (22). The winding device (3) is located on the steel strip output side of the slitting slitting device (2), and the winding device (3) is arranged in parallel alignment in sequence; buffer zones (4) are formed between the winding device (1) and the slitting slitting device (2) and between the slitting slitting device (2) and the winding device (3), respectively, and the steel strip located in the buffer zone (4) is in a relaxed and drooping state.

2. The multi-stage buffer steel strip shearing device according to claim 1, characterized in that: The upper shearing roller (21) is provided with a first blade group (211) detachably connected to it, and the lower shearing roller (22) is provided with a second blade group (221) detachably connected to it. The first blade group (211) and the second blade group (221) are parallel to each other and staggered vertically.

3. The multi-stage buffer steel strip shearing equipment according to claim 2, characterized in that: The first cutter group (211) and the second cutter group (221) are composed of multiple roller cutters (2111) evenly spaced apart. A bushing (2112) is provided between each roller cutter (2111). T-shaped grooves (2113) are provided on the surfaces of the upper shearing roller (21) and the lower shearing roller (22). T-shaped protrusions (2114) that cooperate with the T-shaped grooves (2113) are provided on the inner walls of the roller cutter (2111) and the bushing (2112).

4. The multi-stage buffer steel strip shearing device according to claim 1, characterized in that: It also includes a waste collection unit (5), which is located between the slitting and cutting device (2) and the winding device (3). The waste collection unit (5) includes a waste filament collection device (51) and a burr removal device (52). The waste filament collection device (51) is located close to the slitting and cutting device (2), and the burr removal device (52) is located close to the winding device (3).

5. The multi-stage buffer steel strip shearing device according to claim 4, characterized in that: The waste filament collection device (51) includes a guide (511), a collection bracket (512), and a waste filament winding component (513). The guide (511) and the waste filament winding component (513) are installed on both sides of the collection bracket (512). The guide (511) includes a guide cylinder (5111), a guide rod (5112), a mounting block (5113), and two auxiliary rollers (5114). The guide rod (5112) is connected to the guide cylinder (5111), and the auxiliary rollers (5114) are installed parallel to each other in the mounting block (5113). The guide cylinder (5111) drives the mounting block (5113) to move along the guide rod (5112).

6. The multi-stage buffer steel strip shearing device according to claim 4, characterized in that: The burr removal device (52) includes two spaced-apart collection rollers (521) and a collection groove (522) disposed below the two collection rollers (521). Each collection roller (521) has a plurality of detachable spaced-apart scrapers (523) on its surface, and the interval between each scraper (523) is equal to the width of the steel strip after it is divided.

7. The multi-stage buffer steel strip shearing device according to claim 1, characterized in that: The lifting device (23) includes a support (231), a cylinder (232), a guide rod (233) and a bearing block (234). The cylinder (232) is fixedly installed on the support (231), and the two ends of the guide rod (233) are respectively connected to the cylinder (232) and the bearing block (234).

8. The multi-stage buffer steel strip shearing device according to claim 7, characterized in that: The support (231) includes a fixed seat (2311) and a movable seat (2312). The bearing block (234) connected to the fixed seat (2311) is provided with an mounting sleeve (235). The bottom of the movable seat (2312) is provided with a slide rail (236). The movable seat (2312) moves closer to or further away from the upper shearing roller (21) through the slide rail (236). The bearing block (234) connected to the movable seat (2312) is fixedly installed with a clamping sleeve (237).

9. The multi-stage buffer steel strip shearing device according to claim 1, characterized in that: The winding device (3) includes an alignment mechanism (31) and a winding roller (32). The alignment mechanism (31) includes an alignment member (311) and a height adjustment member (312). The alignment member (311) has a plurality of spaced partitions (313) axially arranged on its surface. The height adjustment member (312) is used to adjust the relative height between the alignment member (311) and the winding roller (32).

10. The multi-stage buffer steel strip shearing device according to claim 4, characterized in that: It also includes multiple auxiliary drive rollers (6), which are respectively arranged on the sides of the slitting slitting device (2), the waste filament collection device (51) and the burr removal device (52). The slitting slitting device (2) is also provided with a positioning roller (7) on the side away from the waste collection unit (5).

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