A cold-rolled steel sheet slitting cutting device

Abstract

The application discloses a cold-rolled steel sheet slitting cutting device and belongs to the technical field of cold-rolled steel sheet processing. When the position of the disc cutter is adjusted, the two electric hydraulic rods are controlled to be elongated, so that the two lifting seats are driven to move downwards. The lifting seats drive the buffer assembly and the disc cutter to move downwards and contact the steel sheet roll and cut it. With the compression roller moving downwards and contacting the steel sheet roll, the compression roller and the supporting roller can limit the steel sheet roll to prevent the steel sheet roll from deviating from the position. Then, the second motor is controlled to work, so that the supporting roller is driven to rotate clockwise. The supporting roller drives the steel sheet roll to be conveyed to the right. The disc cutter continuously works, so that the steel sheet roll can be continuously cut while being conveyed. Since the steel sheet roll is clamped by the compression roller and the supporting roller and the steel sheet roll is cut on the supporting roller, the two sides of the cutting position are always pressed by the compression roller, so that the cold-rolled steel plate is not pulled during the cutting process, the phenomenon of bevel edge is avoided, and the cutting precision is improved.

Description

Technical Field

[0001] This invention belongs to the field of cold-rolled steel sheet processing technology, specifically a cold-rolled steel sheet slitting and cutting device. Background Technology

[0002] Cold-rolled steel sheet slitting is a metal processing technology that mainly uses cold-rolled coils to process them into strips of the required width through steps such as uncoiling, slitting, leveling, and recoiling. This processing method can improve material utilization and reduce waste. Cold-rolled steel sheet slitting is commonly used in the production of transformers, packaging, motors, automobiles, home appliances, building materials, and hardware.

[0003] When slitting cold-rolled steel sheets, a rotary disc cutter is usually used for slitting, and a conveying mechanism is used to guide the cold-rolled steel sheets. Due to the lack of a guiding and limiting function for the cold-rolled steel sheets, deviation is prone to occur. During the cutting process, the cold-rolled steel sheets will be pulled, resulting in a slanted edge. At the same time, the cut surface of the cold-rolled steel sheets will also be affected by the cutting force, causing the slitting cold-rolled steel sheets to deviate, thus affecting the cutting accuracy. Summary of the Invention

[0004] To overcome the above-mentioned defects, the present invention provides a cold-rolled steel sheet slitting and cutting device, which solves the problem that when using a conveying mechanism to guide cold-rolled steel sheets, the lack of a guiding and limiting function for the cold-rolled steel sheets can easily lead to deviation. During the cutting process, the cold-rolled steel sheets will be pulled and cause the oblique edge phenomenon. At the same time, the cut surface of the cold-rolled steel sheets will also be affected by the cutting force, causing the slitting of the cold-rolled steel sheets to deviate, thereby affecting the cutting accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cold-rolled steel sheet slitting and cutting device, comprising a worktable, a support frame fixed on the worktable, a mounting component installed on one side of the support frame, an adjustment component fixedly connected to the top of the support frame, buffer components installed at the two bottom ends of the adjustment component, a cutting component installed between the two buffer components, bearing seats sleeved on both sides of the cutting component, the bearing seats being snapped into the buffer components, and a through groove opened on the support frame corresponding to the position of the buffer components;

[0006] The buffer assembly is slidably connected in the through groove. A drive assembly is provided below the cutting assembly. The drive assembly is installed in the support frame. A guide assembly is provided on the side of the drive assembly away from the support assembly. The guide assembly is installed in the support frame. A chain is connected to the end of the guide assembly and the drive assembly. A leveling assembly is provided above the guide assembly. The ends of the leveling assembly are installed on the front and rear sides of the support frame.

[0007] As a further embodiment of the present invention: the mounting assembly includes two top rods with an L-shaped design, one end of each top rod is fixed to one side of the support frame, a bearing is installed at the top of each top rod, mounting bolts are provided at the ends of the bearings and the top rods, and a steel plate roller is installed between the two bearings.

[0008] As a further aspect of the present invention: the adjustment assembly includes a top frame, with electric hydraulic rods fixed on both sides of the top frame, a lifting seat fixedly connected to the bottom end of the electric hydraulic rods, and limit rods fixedly connected to both sides of the lifting seat, the limit rods being embedded in the support frame, and the bottom of the lifting seat being fixedly connected to the top end of the buffer assembly.

[0009] As a further aspect of the present invention: the buffer assembly includes a slide block, which is slidably connected in a through groove, the bearing seat is snapped into the slide block, a sliding hole is provided on the slide block, a slider is connected in the sliding hole, a slider is fixedly connected to the slider, the top end of the slider passes through the sliding hole and is fixed to the bottom end of the adjustment assembly, and a spring is fixedly connected between the slider and the inner wall of the sliding hole.

[0010] As a further aspect of the present invention: the cutting assembly includes a first motor, which is mounted on one side of the buffer assembly. A rotating shaft is fixedly connected to the output shaft of the first motor. The rotating shaft is mounted between the two buffer assemblies through two bearing seats. A pressure roller is fixed outside the rotating shaft, and three disc cutters are mounted outside the pressure roller.

[0011] As a further embodiment of the present invention: the driving assembly includes a second motor, the second motor is mounted on a support frame, a support roller is fixedly connected to the output shaft of the second motor, the support roller is located directly below the pressure roller, the support roller is installed inside the support frame, a cutting groove is opened on the outside of the support roller corresponding to the position of the disc cutter, one end of the support roller passes through the support frame and a drive sprocket is fixed thereon, the drive sprocket is connected to the end of the guide assembly through a chain.

[0012] As a further embodiment of the present invention: the guide assembly includes a driven sprocket, the driven sprocket is connected to the drive assembly via a chain, a guide roller is fixedly connected to one side of the driven sprocket, the guide roller is installed in the support frame, and a plurality of anti-slip grooves are provided on the outside of the guide roller.

[0013] As a further aspect of the present invention: the leveling assembly includes a leveling roller, the leveling roller is located on the guide assembly, ear plates are respectively installed at both ends of the leveling roller, a connecting shaft is fixed at the other end of the ear plate, a bushing is sleeved on the connecting shaft, the bushing is snapped onto the support frame, a stop block is fixedly connected to the end of the connecting shaft away from the ear plate, a torsion spring is fixedly connected between the stop block and the support frame, the torsion spring is sleeved on the outside of the connecting shaft, and a plurality of idler rollers are provided on the side of the leveling roller away from the drive assembly, the idler rollers are installed inside the support frame.

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

[0015] 1. In this invention, cold-rolled steel sheet coils are installed on the mounting assembly and pulled onto the drive assembly. The first motor is controlled to drive the rotating shaft and pressure rollers to rotate. The pressure rollers then drive multiple disc cutters to rotate. While adjusting the position of the disc cutters, two electro-hydraulic rods are extended, causing two lifting seats to move downwards. The lifting seats then drive the buffer assembly and disc cutters downwards, contacting and cutting the steel sheet coils. This ensures the disc cutters are positioned within the cutting groove outside the support rollers, thus preventing interference with their rotation. As the pressure rollers move downwards and contact the steel sheet coils... The system uses a contact mechanism to limit the position of the steel coil by the pressure roller and support roller, preventing it from shifting. A second motor is then controlled to rotate the support roller clockwise, which in turn feeds the steel coil to the right. This, combined with the continuous operation of the disc cutter, allows for continuous cutting of the steel coil while it is being fed. Because the steel coil is clamped by the pressure roller and support roller, and cut on the support roller, the two sides of the cutting position are always pressed firmly by the pressure roller, preventing the cold-rolled steel sheet from being pulled during cutting and thus avoiding slanted edges, thereby improving cutting accuracy.

[0016] 2. In this invention, when the pressure roller moves downward and contacts the steel sheet coil, the pressure roller, after being pressed, will drive the slide block upward through the rotating shaft and bearing seat, allowing the slide block to slide within the through groove. During the upward movement of the slide block, it will compress the spring and slide outside the slide rod. The spring force provides reverse support to the slide block, giving the pressure roller a reverse buffer force, preventing excessive downward pressure from the pressure roller from causing deformation or damage to the steel sheet coil, improving the stability of guiding and conveying the steel sheet coil, and pulling the slit-cut steel sheet coil onto the guiding assembly, so that the bottom of the leveling assembly overlaps with the steel sheet coil. At the top, when the second motor is working, it can drive the support roller and the drive sprocket to rotate. The drive sprocket drives the driven sprocket to rotate via a chain, and the driven sprocket drives the guide roller to rotate. The guide roller can guide the slit-cut steel plate coil onto the idler roller. Because the diameter of the drive sprocket is larger than the diameter of the driven sprocket, the rotation speed of the support roller is lower than that of the guide roller, which increases the guiding speed of the guide roller and prevents the steel plate coil from bending between the guide roller and the support roller, thus preventing uneven discharge. The anti-slip grooves set on the outside of the guide roller increase the friction between the guide roller and the steel plate coil, thereby improving the guiding stability.

[0017] 3. In this invention, the leveling roller in the leveling assembly contacts the steel plate coil, and the force of the torsion spring drives the stop block and the connecting shaft to deflect. The connecting shaft then drives the leveling roller to deflect through the ear plate, so that the leveling roller can closely adhere to the steel plate coil. During the process of conveying the steel plate coil to the right, the leveling roller can flatten the steel plate coil and prevent the steel plate coil from deforming. At the same time, when the steel plate coil is pressed against the leveling roller, the leveling roller can rotate around the connecting shaft. With the torsional support of the torsion spring, it can adapt to the leveling work of steel plate coils of different thicknesses. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a rear view structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the buffer component of the present invention;

[0022] Figure 5 This is a schematic diagram of the connection between the drive component and the support frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the leveling component of the present invention;

[0024] In the diagram: 1. Workbench; 2. Support frame; 3. Erection assembly; 301. Top rod; 302. Shaft seat; 303. Steel plate winding roller; 304. Mounting bolt; 4. Adjustment assembly; 401. Top frame; 402. Electro-hydraulic rod; 403. Lifting seat; 404. Limit rod; 5. Buffer assembly; 501. Slide seat; 502. Sliding hole; 503. Sliding block; 504. Sliding rod; 505. Spring; 6. Bearing seat; 7. Cutting assembly; 701. First motor; 702. 703. Rotary shaft; 704. Disc cutter; 705. Pressure roller; 8. Drive assembly; 806. Second motor; 807. Support roller; 808. Cutting groove; 809. Drive sprocket; 9. Chain; 10. Guide assembly; 101. Driven sprocket; 102. Guide roller; 103. Anti-slip groove; 11. Through groove; 12. Leveling assembly; 121. Leveling roller; 122. Ear plate; 123. Connecting shaft; 124. Bushing; 125. Stop block; 126. Torsion spring; 13. Idler roller. Detailed Implementation

[0025] The technical solution of this application will be further described in detail below with reference to specific embodiments.

[0026] like Figure 1-2 As shown, the present invention provides a technical solution: a cold-rolled steel sheet slitting and cutting device, including a worktable 1, a support frame 2 fixed on the worktable 1, and a mounting assembly 3 installed on one side of the support frame 2. The mounting assembly 3 includes two top rods 301 with an L-shaped design. One end of the two top rods 301 is fixed to one side of the support frame 2, and a bearing seat 302 is installed at the top end of the top rod 301. The bearing seat 302 and the end of the top rod 301 are connected by mounting bolts 304. A steel sheet winding roller 303 is installed between the two bearing seats 302. The cold-rolled steel sheet coil is installed on the steel sheet winding roller 303, and the bearing seat 302 is installed on the end of the top plate by bolts to stabilize the coil on the steel sheet winding roller 303.

[0027] like Figure 3-4 The top of the support frame 2 shown is fixedly connected to an adjustment component 4. The adjustment component 4 includes a top frame 401. Electric hydraulic rods 402 are fixedly fixed on both sides inside the top frame 401. A lifting seat 403 is fixedly connected to the bottom end of the electric hydraulic rods 402. Limiting rods 404 are fixedly connected to both sides under the lifting seat 403. The limiting rods 404 are embedded in the support frame 2.

[0028] The bottom of the lifting seat 403 is fixedly connected to the top of the buffer assembly 5. The buffer assembly 5 includes a slide 501. A through groove 11 is provided on the support frame 2 at the position corresponding to the slide 501. The slide 501 is slidably connected in the through groove 11. The bearing seat 6 is snapped into the slide 501. A sliding hole 502 is provided on the slide 501. A slider 503 is connected in the sliding hole 502. A slider rod 504 is fixedly connected to the slider 503. The top of the slider rod 504 passes through the sliding hole 502 and is fixed to the bottom of the lifting seat 403. A spring 505 is fixedly connected between the slider 503 and the inner wall of the sliding hole 502.

[0029] A cutting assembly 7 is installed between the two buffer assemblies 5. The cutting assembly 7 includes a first motor 701, which is installed on one side of the buffer assembly 5. A rotating shaft 702 is fixedly connected to the output shaft of the first motor 701. The rotating shaft 702 is installed between the two buffer assemblies 5 through two bearing seats 6. A pressure roller 704 is fixed outside the rotating shaft 702. Three disc cutters 703 are installed outside the pressure roller 704. The pressure roller 704 and the support roller 802 can limit the position of the steel plate coil and prevent the steel plate coil from deviating from its position.

[0030] The two electric hydraulic rods 402 are controlled to move the two lifting seats 403. The lifting seats 403 then move the buffer assembly 5 and the disc cutter 703 up or down, which facilitates the disc cutter 703 to cut steel plate coils of different thicknesses. The spring force of the spring 505 provides reverse support to the slide 501, giving the pressure roller 704 a reverse buffer force, preventing the pressure roller 704 from exerting too much downward pressure and causing deformation or damage to the steel plate coil, thus improving the stability of the steel plate coil guiding and conveying.

[0031] like Figure 5 As shown, a drive assembly 8 is provided below the cutting assembly 7, and the drive assembly 8 is installed inside the support frame 2. Specifically, the drive assembly 8 includes a second motor 801, which is mounted on the support frame 2. A support roller 802 is fixedly connected to the output shaft of the second motor 801. The support roller 802 is located directly below the pressure roller 704 and is installed inside the support frame 2. A cutting groove 803 is formed on the outside of the support roller 802 corresponding to the position of the disc cutter 703. The disc cutter 703 moves down and contacts the steel plate coil and cuts it, so that the disc cutter 703 is located in the cutting groove 803 outside the support roller 802, thus not interfering with the rotation of the disc cutter 703. One end of the support roller 802 passes through the support frame 2 and is fixed with a drive sprocket 804. The drive sprocket 804 is connected to the end of the guide assembly 10 through a chain 9.

[0032] The guide assembly 10 is installed inside the support frame 2. The guide assembly 10 includes a driven sprocket 101. The diameter of the driving sprocket 804 is larger than the diameter of the driven sprocket 101, so the rotational speed of the support roller 802 is lower than that of the guide roller 102. This increases the material guiding speed of the guide roller 102 and prevents the steel plate coil from bending between the guide roller 102 and the support roller 802, which would cause uneven material discharge. The driven sprocket 101 is connected to the driving sprocket 804 via a chain 9. The guide roller 102 is fixedly connected to one side of the driven sprocket 101. The guide roller 102 is installed inside the support frame 2. Several anti-slip grooves 103 are provided on the outside of the guide roller 102. The anti-slip grooves 103 on the outside of the guide roller 102 increase the friction between the guide roller 102 and the steel plate coil, preventing the guide roller 102 from slipping during the conveying of the steel plate coil.

[0033] like Figure 6 As shown, a leveling component 12 is provided above the guide component 10. The ends of the leveling component 12 are installed on the front and rear sides of the support frame 2. The leveling component 12 includes a leveling roller 121, which is located on the guide component 10. Ear plates 122 are respectively installed at both ends of the leveling roller 121. A connecting shaft 123 is fixed at the other end of the ear plate 122. A bushing 124 is sleeved on the connecting shaft 123 and snapped onto the support frame 2. A stop block 125 is fixedly connected to the end of the connecting shaft 123 away from the ear plate 122. A torsion spring 126 is fixedly connected between the stop block 125 and the support frame 2. The torsion spring 126 is sleeved on the outside of the connecting shaft 123. Several idlers 13 are provided on the side of the leveling roller 121 away from the drive component 8. The idlers 13 are installed inside the support frame 2.

[0034] The force of the torsion spring 126 causes the stop block 125 and the connecting shaft 123 to deflect. The connecting shaft 123 then drives the leveling roller 121 to deflect through the ear plate 122, so that the leveling roller 121 can closely adhere to the steel plate coil. During the process of conveying the steel plate coil to the right, the leveling roller 121 can flatten the steel plate coil and prevent the steel plate coil from deforming.

[0035] The working principle of this invention is as follows:

[0036] In use, cold-rolled steel sheet coils are installed on the mounting assembly 3 and pulled onto the drive assembly 8. The first motor 701 is controlled to drive the rotating shaft 702 and pressure roller 704 to rotate. The pressure roller 704 drives multiple disc cutters 703 to rotate. When adjusting the position of the disc cutters 703, the two electric hydraulic rods 402 are controlled to extend, causing the two lifting seats 403 to move downward. The lifting seats 403 then drive the buffer assembly 5 and the disc cutters 703 to move downward and contact the steel sheet coil, cutting it. The disc cutters 703 are positioned in the cutting groove 803 outside the support roller 802. As the pressure roller 704 moves downward and contacts the steel sheet coil, the pressure roller 704 and the support roller 802 can limit the movement of the steel sheet coil.

[0037] The second motor 801 is controlled to drive the support roller 802 to rotate clockwise. The support roller 802 then drives the steel plate coil to be conveyed to the right. In conjunction with the continuous operation of the disc cutter 703, the steel plate coil can be continuously cut while being conveyed. When the pressure roller 704 moves down and contacts the steel plate coil, the pressure roller 704, after being pressed, will drive the slide block 501 to move upward through the rotating shaft 702 and the bearing seat 6, so that the slide block 501 can slide in the through groove 11. During the upward movement of the slide block 501, it will squeeze the spring 505 and slide outside the slide rod 504. The elastic force of the spring 505 provides reverse support to the slide block 501, giving the pressure roller 704 a reverse buffer force to prevent the pressure roller 704 from being too strong and causing deformation or damage to the steel plate coil.

[0038] The slit-cut steel sheet coils are pulled onto the guide assembly 10, so that the bottom of the leveling assembly 12 overlaps the top of the steel sheet coils. When the second motor 801 is working, it drives the support roller 802 and the drive sprocket 804 to rotate. The drive sprocket 804 drives the driven sprocket 101 to rotate via the chain 9. The driven sprocket 101 then drives the guide roller 102 to rotate. The guide roller 102 guides the slit-cut steel sheet coils onto the support roller 13, and the leveling roller 121 contacts the steel sheet coils. The force of the torsion spring 126 drives the stop block 125 and the connecting shaft 123 to deflect. The connecting shaft 123 then drives the leveling roller 121 to deflect via the ear plate 122, so that the leveling roller 121 can closely adhere to the steel sheet coils. During the process of conveying the steel sheet coils to the right, the leveling roller 121 can flatten the steel sheet coils.

[0039] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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.

[0040] Furthermore, the terms "first" and "second" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A cold-rolled steel sheet slitting and cutting device, comprising a worktable (1), characterized in that: A support frame (2) is fixed on the workbench (1). A mounting component (3) is installed on one side of the support frame (2). An adjustment component (4) is fixedly connected to the top of the support frame (2). Buffer components (5) are installed at the two bottom ends of the adjustment component (4). A cutting component (7) is installed between the two buffer components (5). Bearing seats (6) are sleeved on both sides of the cutting component (7). The bearing seats (6) are snapped into the buffer components (5). A through groove (11) is opened on the support frame (2) at the position corresponding to the buffer components (5). The buffer assembly (5) is slidably connected in the through groove (11). The cutting assembly (7) is provided with a driving assembly (8) below it. The driving assembly (8) is installed in the support frame (2). The driving assembly (8) is provided with a guide assembly (10) on the side away from the support assembly (3). The guide assembly (10) is installed in the support frame (2). The end of the guide assembly (10) is connected to the end of the driving assembly (8) with a chain (9). The guide assembly (10) is provided with a leveling assembly (12) above it. The end of the leveling assembly (12) is installed on the front and rear sides of the support frame (2). The buffer assembly (5) includes a slide (501), which is slidably connected in the through groove (11). The bearing seat (6) is snapped into the slide (501). A sliding hole (502) is provided on the slide (501). A slider (503) is connected in the sliding hole (502). A slider (504) is fixedly connected to the slider (503). The top end of the slider (504) passes through the sliding hole (502) and is fixed to the bottom end of the adjusting assembly (4). A spring (505) is fixedly connected between the slider (503) and the inner wall of the sliding hole (502). The cutting assembly (7) includes a first motor (701), which is mounted on one side of the buffer assembly (5). A rotating shaft (702) is fixedly connected to the output shaft of the first motor (701). The rotating shaft (702) is mounted between the two buffer assemblies (5) through two bearing seats (6). A pressure roller (704) is fixed to the outside of the rotating shaft (702), and three disc cutters (703) are mounted on the outside of the pressure roller (704). The drive assembly (8) includes a second motor (801), which is mounted on the support frame (2). A support roller (802) is fixedly connected to the output shaft of the second motor (801). The support roller (802) is located directly below the pressure roller (704). The support roller (802) is installed inside the support frame (2). A cutting groove (803) is provided on the outside of the support roller (802) corresponding to the position of the disc cutter (703). One end of the support roller (802) passes through the support frame (2) and is fixed with a drive sprocket (804). The drive sprocket (804) is connected to the end of the guide assembly (10) through a chain (9). The guide assembly (10) includes a driven sprocket (101), which is connected to the drive assembly (8) via a chain (9). A guide roller (102) is fixedly connected to one side of the driven sprocket (101). The guide roller (102) is installed inside the support frame (2), and several anti-slip grooves (103) are provided on the outside of the guide roller (102). The leveling assembly (12) includes a leveling roller (121), which is located on the guide assembly (10). Ear plates (122) are installed at both ends of the leveling roller (121). A connecting shaft (123) is fixed at the other end of the ear plate (122). A bushing (124) is sleeved on the connecting shaft (123). The bushing (124) is snapped onto the support frame (2). A stop block (125) is fixedly connected to the end of the connecting shaft (123) away from the ear plate (122). A torsion spring (126) is fixedly connected between the stop block (125) and the support frame (2). The torsion spring (126) is sleeved on the outside of the connecting shaft (123). Several idlers (13) are provided on the side of the leveling roller (121) away from the drive assembly (8). The idlers (13) are installed inside the support frame (2).

2. The cold-rolled steel sheet slitting and cutting device according to claim 1, characterized in that: The mounting assembly (3) includes two top rods (301) with an L-shaped design. One end of each top rod (301) is fixed to one side of the support frame (2). A bearing seat (302) is installed at the top of each top rod (301). Mounting bolts (304) are provided at the ends of the bearing seat (302) and the top rod (301). A steel plate winding roller (303) is installed between the two bearing seats (302).

3. The cold-rolled steel sheet slitting and cutting device according to claim 1, characterized in that: The adjustment component (4) includes a top frame (401), with electric hydraulic rods (402) fixed on both sides of the top frame (401). A lifting seat (403) is fixedly connected to the bottom end of the electric hydraulic rods (402). Limiting rods (404) are fixedly connected to both sides of the lifting seat (403). The limiting rods (404) are embedded in the support frame (2). The bottom of the lifting seat (403) is fixedly connected to the top end of the buffer component (5).

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