Cold-roll steel sheet slitting and cutting device

Abstract

The invention discloses a cold-roll steel plate slitting and cutting device, and belongs to the technical field of cold-roll steel plate machining, two electric hydraulic rods are controlled to extend to drive two lifting seats to move downwards when the position of a cutting disc is adjusted, and the lifting seats drive buffer assemblies and the cutting disc to move downwards and make contact with a steel plate coiled material to cut off the steel plate coiled material. The pressing roller moves downwards to make contact with the steel plate coiled material, the pressing roller and the supporting roller can limit the steel plate coiled material, the steel plate coiled material is prevented from deviating, a second motor is controlled to work to drive the supporting roller to rotate clockwise, the supporting roller drives the steel plate coiled material to be conveyed rightwards, and the supporting roller is matched with a cutting disc to work continuously. Due to the fact that the steel plate coiled material is clamped by the pressing rollers and the supporting rollers and is cut on the supporting rollers, and the two sides of the cutting position are pressed tightly by the pressing rollers all the time, the phenomenon that in the cutting process, a cold-roll steel plate is dragged, and consequently the bevel edge phenomenon occurs is avoided, and the cutting precision is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cold-rolled steel plate processing, and in particular relates to a cold-rolled steel plate strip cutting device. Background Art

[0002] Cold-rolled steel plate strip cutting is a metal processing technology, which is mainly used to process cold-rolled coils into strips of required width through steps such as uncoiling, slitting, leveling, and winding. This processing method can improve material utilization and reduce waste. Cold-rolled steel plate strip cutting is often used in the production of transformers, packaging industry, motors, automobiles, home appliances, building materials, hardware and other industries.

[0003] When cutting cold-rolled steel plates into strips, a rotating disc knife is usually used for cutting, and a conveying mechanism is used to guide the cold-rolled steel plates. Due to the lack of a guiding and limiting function for the cold-rolled steel plates, deviation is prone to occur. During the cutting process, the cold-rolled steel plates will be pulled, resulting in beveled edges. At the same time, the cut surface of the cold-rolled steel plates will also be affected by the cutting force, causing the cold-rolled steel plates after stripping to deviate, thereby affecting the cutting accuracy. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the present invention provides a cold-rolled steel plate strip cutting device, which solves the problem that the cold-rolled steel plate is easily offset due to the lack of a guiding and limiting function for the cold-rolled steel plate when a conveying mechanism is used to guide the cold-rolled steel plate. During the cutting process, the cold-rolled steel plate will be pulled, resulting in a beveled edge. At the same time, the cut surface of the cold-rolled steel plate will also be affected by the cutting force, causing the cold-rolled steel plate after stripping to deviate, thereby affecting the cutting accuracy.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cold-rolled steel plate strip cutting device, comprising a workbench, a support frame is fixed on the workbench, a mounting assembly is installed on one side of the support frame, an adjustment assembly is fixedly connected to the top of the support frame, buffer assemblies are respectively installed at two bottom ends of the adjustment assembly, a cutting assembly is installed between the two buffer assemblies, bearing seats are respectively sleeved on two sides outside the cutting assembly, the bearing seats are clamped in the buffer assembly, and a through groove is opened on the support frame at a position corresponding to the buffer assembly;

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

[0007] As a further solution of the present invention: the erection assembly includes two top rods and the top rods are L-shaped, one end of the two top rods is fixed on one side of the support frame, an axle seat is installed at the top end of the top rod, the axle seat and the end of the top rod are provided with mounting bolts, and a steel plate winding roller is installed between the two axle seats.

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

[0009] As a further solution of the present invention: the buffer assembly includes a sliding seat, the sliding seat is slidably connected in the through groove, the bearing seat is clamped in the sliding seat, a sliding hole is opened on the sliding seat, a sliding block is connected in the sliding hole, a sliding rod is fixedly connected to the sliding block, the top end of the sliding rod passes through the sliding hole and is fixed to the bottom end of the adjusting assembly, and a spring is fixedly connected between the sliding block and the inner wall of the sliding hole.

[0010] As a further solution of the present invention: the cutting assembly includes a first motor, the first motor is installed 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 installed between two buffer assemblies through two bearing seats, a pressure roller is fixed outside the rotating shaft, and three disc cutters are installed outside the pressure roller.

[0011] As a further solution of the present invention: the driving assembly includes a second motor, the second motor is installed 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 in the support frame, a cutting groove is opened on the outside of the support roller at a position corresponding to the disc knife, one end of the support roller passes through the support frame and a driving sprocket is fixed thereto, and the driving sprocket is connected to the end of the guide assembly through a chain.

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

[0013] As a further solution of the present invention: the leveling assembly includes a leveling roller rod, which is located on the guide assembly, and ear plates are respectively installed at both ends of the leveling roller rod, a connecting shaft is fixed to the other end of the ear plate, a shaft sleeve is outer-mounted on the connecting shaft, and the shaft sleeve is clamped on 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, and the torsion spring is sleeved on the outside of the connecting shaft, and a plurality of rollers are provided on the side of the leveling roller rod away from the driving assembly, and the rollers are installed in the support frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the cold-rolled steel sheet coil is installed on the erection assembly, the cold-rolled steel sheet coil is pulled onto the driving assembly, the first motor is controlled to drive the rotating shaft and the pressure roller to rotate, and the pressure roller drives a plurality of disc cutters to rotate. When adjusting the position of the disc cutters, the two electric hydraulic rods are controlled to extend to drive the two lifting seats to move downward, and the lifting seats drive the buffer assembly and the disc cutters to move downward and contact with the steel sheet coil and cut it off, so that the disc cutters are located in the cutting groove outside the supporting roller, thereby not interfering with the rotation of the disc cutters. As the pressure roller moves downward and contacts with the steel sheet coil, the disc cutters are moved downward and the pressure roller moves downward. The contact makes the pressure roller and the support roller limit the steel plate coil to prevent the steel plate coil from shifting. Secondly, the second motor is controlled to drive the support roller to rotate clockwise, and the support roller drives the steel plate coil to be transported to the right, and the disc knife position works continuously, so that the steel plate coil can be transported and cut continuously at the same time. Because the steel plate coil is clamped by the pressure roller and the support roller, and the steel plate coil is cut on the support roller, the two sides of the cutting position are always pressed by the pressure roller, so that the cold-rolled steel plate will not be involved in the cutting process to cause beveling, thereby improving the cutting accuracy.

[0016] 2. In the present invention, when the pressure roller moves downward and contacts the steel plate coil, the pressure roller will drive the slide seat to move upward through the rotating shaft and the bearing seat after being pressed, so that the slide seat can slide in the through groove. During the upward movement of the slide seat, the spring will be squeezed and the slide seat will slide outside the slide rod. The elastic force of the spring will support the slide seat in the reverse direction, giving the pressure roller a reverse buffering force to prevent the pressure roller from causing deformation or damage to the steel plate coil due to excessive downward pressure, thereby improving the stability of the steel plate coil guide conveying, and pulling the steel plate coil after strip cutting onto the guide assembly so that the bottom of the leveling assembly overlaps the steel plate coil. At the top, when the second motor is working, it can drive the supporting roller and the driving sprocket to rotate. The driving sprocket drives the driven sprocket to rotate through the chain, and the driven sprocket drives the guide roller to rotate. The guide roller can guide the steel plate coil after strip cutting onto the supporting roller. Because the diameter of the driving sprocket is larger than the diameter of the driven sprocket, the rotation speed of the supporting roller is lower than that of the guide roller, which increases the material guiding speed of the guide roller and prevents the steel plate coil from bending between the guide roller and the supporting roller, resulting in unsmooth material discharge. The anti-skid groove outside the guide roller increases the friction between the guide roller and the steel plate coil and improves the material guiding stability.

[0017] 3. In the present invention, the leveling roller in the leveling assembly contacts the steel plate coil, and the action force of the torsion spring drives the stopper and the connecting shaft to deflect. The connecting shaft drives the leveling roller to deflect through the ear plate, so that the leveling roller can be close to the steel plate coil. When the steel plate coil is conveyed to the right, the leveling roller can flatten the steel plate coil to prevent the steel plate coil from deformation. At the same time, when the steel plate coil is squeezed by the leveling roller, the leveling roller can rotate around the connecting shaft, and cooperate with the torsion support of the torsion spring to adapt to the leveling work of steel plate coils of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a schematic diagram of the structure of the present invention from the rear;

[0020] Figure 3 It is a structural schematic diagram of the regulating assembly of the present invention;

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

[0022] Figure 5 It is a schematic diagram of the structure of the connection between the driving assembly and the supporting frame of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the leveling assembly of the present invention;

[0024] In the figure: 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, electric hydraulic rod; 403, lifting seat; 404, limit rod; 5, buffer assembly; 501, slide seat; 502, slide hole; 503, slide block; 504, slide rod; 505, spring; 6, bearing seat; 7, cutting assembly; 701, first motor; 702, Rotating shaft; 703, disc knife; 704, pressure roller; 8, driving assembly; 801, second motor; 802, supporting roller; 803, cutting groove; 804, driving sprocket; 9, chain; 10, guide assembly; 101, driven sprocket; 102, guide roller; 103, anti-skid groove; 11, through groove; 12, leveling assembly; 121, leveling roller rod; 122, ear plate; 123, connecting shaft; 124, bushing; 125, block; 126, torsion spring; 13, roller. DETAILED DESCRIPTION

[0025] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0026] like Figure 1-2 As shown, the present invention provides a technical solution: a cold-rolled steel plate strip cutting device, comprising a workbench 1, a support frame 2 is fixed on the workbench 1, a mounting assembly 3 is installed on one side of the support frame 2, the mounting assembly 3 comprises two top rods 301, and the top rods 301 are L-shaped, one end of the two top rods 301 is fixed on one side of the support frame 2, an axle seat 302 is installed on the top of the top rod 301, the axle seat 302 and the end of the top rod 301 are installed by mounting bolts 304, and a steel plate winding roller 303 is installed between the two axle seats 302. The cold-rolled steel plate coil is installed on the steel plate winding roller 303, and the axle seat 302 is installed on the end of the top plate by bolts, so as to stably pull the coil on the steel plate winding roller 303.

[0027] like Figure 3-4 The top of the support frame 2 shown is fixedly connected with an adjustment component 4, and the adjustment component 4 includes a top frame 401, and electric hydraulic rods 402 are fixedly connected on both sides of the top frame 401, and the bottom end of the electric hydraulic rod 402 is fixedly connected with a lifting seat 403, and the two sides under the lifting seat 403 are fixedly connected with limit rods 404, and the limit 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, and the buffer assembly 5 includes a slide seat 501. A through groove 11 is opened at the position corresponding to the slide seat 501 on the support frame 2, and the slide seat 501 is slidably connected in the through groove 11. The bearing seat 6 is clamped in the slide seat 501. A sliding hole 502 is opened on the slide seat 501, and a slider 503 is connected in the sliding hole 502. A sliding rod 504 is fixedly connected to the slider 503. The top of the sliding rod 504 passes through the sliding hole 502 and is fixed to the bottom end 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, and the cutting assembly 7 includes a first motor 701. The first motor 701 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 knives 703 are installed outside the pressure roller 704. The pressure roller 704 and the support roller 802 can limit the steel plate coil to prevent the steel plate coil from shifting.

[0030] The two electric hydraulic rods 402 are controlled to work so that they drive the two lifting seats 403 to move, and the lifting seats 403 drive the buffer assembly 5 and the disc knife 703 to move up or down, so that the disc knife 703 can cut steel plates of different thicknesses. The slide seat 501 is supported in the reverse direction by the elastic force of the spring 505, giving the pressure roller 704 a reverse buffering force to prevent the pressure roller 704 from pressing down too much to cause deformation or damage to the steel plate coil, thereby improving the stability of the guided transportation of the steel plate coil.

[0031] like Figure 5 As shown, a driving assembly 8 is provided below the cutting assembly 7, and the driving assembly 8 is installed in the support frame 2. Specifically, the driving assembly 8 includes a second motor 801, the second motor 801 is installed on the support frame 2, a supporting roller 802 is fixedly connected to the output shaft of the second motor 801, the supporting roller 802 is located directly below the pressure roller 704, the supporting roller 802 is installed in the support frame 2, a cutting groove 803 is provided outside the supporting roller 802 at a position corresponding to the disc knife 703, the disc knife 703 moves downward and contacts with the steel plate coil and cuts it, so that the disc knife 703 is located in the cutting groove 803 outside the supporting roller 802, thereby not interfering with the rotation of the disc knife 703; one end of the supporting roller 802 passes through the support frame 2 and is fixed with a driving sprocket 804, and the driving sprocket 804 is connected to the end of the guide assembly 10 through the chain 9.

[0032] The guide assembly 10 is installed in the support frame 2. The guide assembly 10 includes a driven sprocket 101. The diameter of the driving sprocket 804 is larger than that of the driven sprocket 101. The rotation speed of the support roller 802 is lower than that of the guide roller 102, so as to increase the material guiding speed of the guide roller 102 and prevent the steel plate coil from bending between the guide roller 102 and the support roller 802, resulting in unsmooth material discharge. The driven sprocket 101 is connected to the driving sprocket 804 through the chain 9. A guide roller 102 is fixedly connected to one side of the driven sprocket 101. The guide roller 102 is installed in the support frame 2. A plurality of anti-skid grooves 103 are provided outside the guide roller 102. The anti-skid grooves 103 provided outside the guide roller 102 increase the friction between the guide roller 102 and the steel plate coil, and prevent the guide roller 102 from slipping during the transportation of the steel plate coil.

[0033] like Figure 6 As shown, a leveling assembly 12 is provided above the guide assembly 10, and the ends of the leveling assembly 12 are installed on the front and rear sides of the support frame 2. The leveling assembly 12 includes a leveling roller 121, and the leveling roller 121 is located on the guide assembly 10. Ear plates 122 are respectively installed at both ends of the leveling roller 121, and a connecting shaft 123 is fixed to the other end of the ear plate 122. The outer sleeve 124 is connected to the connecting shaft 123, and the sleeve 124 is clamped on the support frame 2. A stopper 125 is fixedly connected to the end of the connecting shaft 123 away from the ear plate 122, and a torsion spring 126 is fixedly connected between the stopper 125 and the support frame 2; the torsion spring 126 is sleeved on the outside of the connecting shaft 123, and a plurality of rollers 13 are provided on the side of the leveling roller 121 away from the driving assembly 8, and the rollers 13 are installed in the support frame 2.

[0034] The force of the torsion spring 126 drives the stopper 125 and the connecting shaft 123 to deflect, and the connecting shaft 123 drives the leveling roller 121 to deflect through the ear plate 122, so that the leveling roller 121 can be close to the steel plate coil. When the steel plate coil is conveyed to the right, the leveling roller 121 can flatten the steel plate coil to prevent the steel plate coil from deformation.

[0035] The working principle of the present invention is:

[0036] When in use, the cold-rolled steel sheet coil is installed on the mounting assembly 3, and the cold-rolled steel sheet coil is pulled onto the driving assembly 8. The first motor 701 is controlled to drive the rotating shaft 702 and the pressure roller 704 to rotate, and 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 so that they drive the two lifting seats 403 to move downward, and the lifting seats 403 drive the buffer assembly 5 and the disc cutters 703 to move downward and contact the steel sheet coil and cut it off, so that the disc cutters 703 are located in the cutting groove 803 outside the supporting roller 802. As the pressure roller 704 moves downward and contacts the steel sheet coil, the pressure roller 704 and the supporting roller 802 can limit the steel sheet coil.

[0037] The second motor 801 is controlled to drive the support roller 802 to rotate clockwise, and the support roller 802 drives the steel plate coil to be transported to the right, and cooperates with the disc knife 703 to work continuously, so that the steel plate coil can be transported and cut continuously. When the pressure roller 704 moves down and contacts the steel plate coil, the pressure roller 704 will drive the slide 501 to move upward through the rotating shaft 702 and the bearing seat 6 after being pressed, so that the slide 501 can slide in the through groove 11; during the upward movement of the slide 501, the spring 505 will be squeezed and the slide 504 will slide outside the slide bar 504. The elastic force of the spring 505 will support the slide 501 in the reverse direction, giving the pressure roller 704 a reverse buffering force to prevent the pressure roller 704 from pressing down too much and causing deformation or damage to the steel plate coil.

[0038] The steel sheet coil after strip cutting is pulled onto the guide assembly 10, so that the bottom of the flattening assembly 12 overlaps the top of the steel sheet coil. When the second motor 801 is working, it can drive the support roller 802 and the driving sprocket 804 to rotate. The driving sprocket 804 drives the driven sprocket 101 to rotate through the chain 9, and the driven sprocket 101 drives the guide roller 102 to rotate. The guide roller 102 can guide the steel sheet coil after strip cutting onto the support roller 13, and the flattening roller 121 contacts the steel sheet coil. The stopper 125 and the connecting shaft 123 are deflected by the force of the torsion spring 126, and the connecting shaft 123 drives the flattening roller 121 to deflect through the ear plate 122, so that the flattening roller 121 can be close to the steel sheet coil. When the steel sheet coil is transported to the right, the flattening roller 121 can flatten the steel sheet coil.

[0039] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

Claims

1. A cold-rolled steel plate strip cutting device, comprising a workbench (1), characterized in that: A support frame (2) is fixed on the workbench (1), a mounting assembly (3) is installed on one side of the support frame (2), an adjustment assembly (4) is fixedly connected to the top of the support frame (2), buffer assemblies (5) are respectively installed at two bottom ends of the adjustment assembly (4), a cutting assembly (7) is installed between the two buffer assemblies (5), bearing seats (6) are respectively sleeved on two sides outside the cutting assembly (7), the bearing seats (6) are clamped in the buffer assembly (5), and a through groove (11) is opened on the support frame (2) at a position corresponding to the buffer assembly (5); The buffer component (5) is slidably connected in the through groove (11); a driving component (8) is provided below the cutting component (7); the driving component (8) is installed in the support frame (2); a guide component (10) is provided on the side of the driving component (8) away from the erection component (3); the guide component (10) is installed in the support frame (2); a chain (9) is connected between the ends of the guide component (10) and the driving component (8); 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).

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

3. The cold-rolled steel plate strip cutting device according to claim 1, characterized in that: The adjustment assembly (4) comprises a top frame (401), and electric hydraulic rods (402) are fixed on both sides of the top frame (401), and the bottom end of the electric hydraulic rod (402) is fixedly connected to a lifting seat (403), and the two sides under the lifting seat (403) are fixedly connected to limit rods (404), and the limit rods (404) are embedded in the support frame (2), and the bottom of the lifting seat (403) is fixedly connected to the top of the buffer assembly (5).

4. The cold-rolled steel plate strip cutting device according to claim 1, characterized in that: The buffer assembly (5) comprises a slide seat (501), the slide seat (501) is slidably connected in the through groove (11), the bearing seat (6) is clamped in the slide seat (501), a slide hole (502) is provided on the slide seat (501), a slider (503) is connected in the slide hole (502), a slide rod (504) is fixedly connected to the slider (503), the top end of the slide rod (504) passes through the slide hole (502) and is fixed to the bottom end of the adjustment assembly (4), and a spring (505) is fixedly connected between the slider (503) and the inner wall of the slide hole (502).

5. The cold-rolled steel plate strip cutting device according to claim 1, characterized in that: The cutting assembly (7) comprises a first motor (701), the first motor (701) being mounted on one side of the buffer assembly (5), a rotating shaft (702) being fixedly connected to the output shaft of the first motor (701), the rotating shaft (702) being mounted between two buffer assemblies (5) via two bearing seats (6), a pressure roller (704) being fixed outside the rotating shaft (702), and three disc cutters (703) being mounted outside the pressure roller (704).

6. The cold-rolled steel plate strip cutting device according to claim 5, characterized in that: The driving assembly (8) comprises a second motor (801), the second motor (801) being mounted on a support frame (2), a support roller (802) being fixedly connected to an output shaft of the second motor (801), the support roller (802) being located directly below a pressure roller (704), the support roller (802) being mounted inside the support frame (2), a cutting groove (803) being provided outside the support roller (802) at a position corresponding to the disc knife (703), one end of the support roller (802) passing through the support frame (2) being fixed with a driving sprocket (804), the driving sprocket (804) being connected to an end of a guide assembly (10) via a chain (9).

7. The cold-rolled steel plate strip cutting device according to claim 1, characterized in that: The guide assembly (10) comprises a driven sprocket (101), the driven sprocket (101) being connected to the driving assembly (8) via a chain (9), a guide roller (102) being fixedly connected to one side of the driven sprocket (101), the guide roller (102) being installed in a support frame (2), and a plurality of anti-slip grooves (103) being provided outside the guide roller (102).

8. The cold-rolled steel plate strip cutting device according to claim 1, characterized in that: The leveling assembly (12) comprises a leveling roller (121), the leveling roller (121) is located on the guide assembly (10), ear plates (122) are respectively installed at both ends of the leveling roller (121), a connecting shaft (123) is fixed to the other end of the ear plate (122), a shaft sleeve (124) is connected to the outer surface of the connecting shaft (123), the shaft sleeve (124) is clamped on the support frame (2), a stopper (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 stopper (125) and the support frame (2), and the torsion spring (126) is sleeved on the outside of the connecting shaft (123), and a plurality of rollers (13) are provided on the side of the leveling roller (121) away from the driving assembly (8), and the rollers (13) are installed in the support frame (2).

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