High-precision stainless steel plate longitudinal shearing machine

Abstract

The application discloses a high-precision stainless steel plate longitudinal shearing machine and relates to the technical field of stainless steel processing. The longitudinal shearing machine comprises a workbench, a pay-off roller is arranged on the top of the workbench, two fixed seats are fixedly connected to the top of the workbench, a fixed rod is fixedly connected to the top of the two fixed seats through a bolt assembly, a plurality of winding rollers are arranged on the outer wall of the fixed rod through a driving structure, a fixed frame is fixedly connected to the top of the workbench, and longitudinal shearing plates are arranged between the pay-off roller and the winding rollers. Through the reverse rotation design of the left clockwise and right counterclockwise rotation of the cylindrical rotating rods on the left and right sides of the longitudinal shearing cutter, the symmetrical extrusion ball bearings are matched, the transverse tension pulling force is formed on the cutting part of the plate to the two sides, the curling trend of the internal stress of the stainless steel plate is offset, the transverse movement and arching of the plate during the cutting process are avoided, the plate cutting process keeps a flat and tensioned state, and the problems of the camber and wavy edge of the narrow strip after the strip division are solved.

Description

Technical Field

[0001] This invention relates to the field of stainless steel processing technology, specifically a high-precision stainless steel sheet slitting machine. Background Technology

[0002] Stainless steel sheet slitting machines are core precision processing equipment that accurately cuts wide stainless steel coils into multiple narrow steel strips along their length. They are widely used in the automotive, home appliance, electronics, new energy, and high-end equipment manufacturing industries.

[0003] Most existing slitting machines use rigid or constant pressure clamping rollers, which cannot adaptively adjust the clamping force and conveying tension according to the actual deformation of the sheet metal. During the cutting process of stainless steel sheets, the sheet metal is prone to local bending, arching, warping, and wavy deformation. At the same time, the sheet metal in the cutting area is prone to shaking and displacement, which not only causes poor cut straightness and low cutting dimensional accuracy, but also easily causes indentations, scratches, wrinkles, and uneven tension on the sheet metal surface, seriously affecting the quality of the finished product and the subsequent winding effect. To address these issues, we provide a high-precision stainless steel sheet slitting machine. Summary of the Invention

[0004] The purpose of this invention is to provide a high-precision stainless steel sheet slitting machine to solve the problems that existing slitting machines easily cause indentations, scratches, wrinkles, and uneven tension on the surface of the sheet material during the cutting process, which seriously affect the quality of the finished product and the subsequent winding effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-precision stainless steel sheet slitting machine, comprising: a worktable, an unwinding roller mounted on the top of the worktable, two fixed seats fixedly connected to the top of the worktable, a fixed rod fixedly connected to the top of the two fixed seats by bolt assemblies, a plurality of take-up rollers mounted on the outer wall of the fixed rods by a drive structure, a fixed frame fixedly connected to the top of the worktable, and a slitting sheet installed between the unwinding roller and the take-up roller; a smoothing mechanism located inside the fixed frame, used to smooth and pull the cut portion of the slitting sheet; and a straightening unit located above the slitting sheet, used to straighten the cut portion of the slitting sheet.

[0006] As a further embodiment of the present invention: a first motor is fixedly connected to one side of the fixed frame, and the execution end of the first motor passes through the interior of the fixed frame and is fixedly connected to a connecting shaft. Multiple longitudinal shears are installed on the outer wall of the connecting shaft. A limiting roller is rotatably connected to the inner side of the fixed frame, and the limiting roller is located below the longitudinally sheared plate to provide support.

[0007] As a further embodiment of the present invention: the driving structure includes a plurality of sleeve rods rotatably connected to the outer wall of the fixed rod, and two telescopic cylinders are fixedly connected to the inner side of each sleeve rod, and the two telescopic cylinders are symmetrically arranged about the center of the sleeve rod. The actuating end of each of the two telescopic cylinders extends through to the outside of the sleeve rod and is fixedly connected to an abutment block. The take-up roller is sleeved on the outer wall of the sleeve rod. A plurality of longitudinally uniformly arranged third motors are installed on the inner side of the fixed rod. A spur gear is fixedly connected to the actuating end of each third motor. A spur gear ring meshing with the spur gear is fixedly connected to the inner side of each sleeve rod.

[0008] As a further embodiment of the present invention: the smoothing mechanism includes a plurality of second electric push rods fixedly connected to the top of the fixed frame and the bottom of the workbench. The actuators of the plurality of second electric push rods located at the top of the fixed frame penetrate into the inner side of the fixed frame and are each fixedly connected to a hydraulic damper. The actuators of the hydraulic dampers are fixedly connected to a connecting four-corner frame. The actuators of the plurality of second electric push rods located at the bottom of the workbench are each fixedly connected to one of the connecting four-corner frames. Two second motors are fixedly connected to one side of the connecting four-corner frame. The actuators of the two second motors penetrate into the inner side of the connecting four-corner frame and are each fixedly connected to a cylindrical rotating rod.

[0009] As a further embodiment of the present invention: the smoothing mechanism further includes multiple sets of connecting rods respectively fixedly connected to the outer wall of one of the cylindrical rotating rods, each set of connecting rods is arranged in a circumferential array, and each connecting rod has a sliding cavity slidably connected to its outer wall. A rebound spring is installed between the sliding cavity and the connecting rod, and the spring force coefficient of each set of rebound springs gradually increases from away from the longitudinal shears to gradually approaching the longitudinal shears. The front end of the sliding cavity is embedded with a compression ball.

[0010] As a further embodiment of the present invention: the straightening unit includes a plurality of first electric push rods fixedly connected to the top of the fixed frame. The actuating end of each first electric push rod extends through the inner side of the fixed frame and is fixedly connected to a buffer auxiliary device. The actuating end of the buffer auxiliary device is fixedly connected to a connecting frame through a pressure sensor. A first pressure roller is rotatably connected to the inner side of the connecting frame. Two limiting rods are fixedly connected to the top of the first pressure roller. One end of the limiting rod extends through the outside of the fixed frame and is slidably connected to the fixed frame. A communication component is provided between the buffer auxiliary device and the hydraulic damper.

[0011] As a further embodiment of the present invention: the connecting component includes a second connecting chamber fixedly connected to the outer wall of the three middle buffer aids. The inner side of the second connecting chamber is provided with a first oil passage communicating with the oil port of the buffer aid. The top of the second connecting chamber is provided with two second oil passages. The outer wall of each hydraulic damper is fixedly connected with a first connecting chamber. The inner side of the first connecting chamber is provided with a third oil passage communicating with the oil port of the hydraulic damper. Two fourth oil passages are provided on one side of the first connecting chamber. A connecting hose is installed between each of the two fourth oil passages and one of the second oil passages. The inner top of the fixed frame is rotatably connected to multiple auxiliary wheels through a connecting seat, and the outer wall of each auxiliary wheel is covered with two connecting hoses.

[0012] As a further embodiment of the present invention: the inner sides of the two buffer aids located at the edge are respectively connected to one of the fourth oil channels of the two first connecting chambers located at the edge through a connecting hose, and the connecting hose is connected in a cross-type manner.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes the reverse rotation design of the cylindrical rotating rods on both sides of the longitudinal shears, with the left side rotating clockwise and the right side counterclockwise. Combined with the symmetrical upper and lower extrusion balls, it creates a lateral tensioning force on the cutting part of the sheet metal, which counteracts the curling tendency of the stainless steel sheet metal itself due to internal stress. This prevents the sheet metal from shifting or arching laterally during the cutting process, ensuring that the sheet metal remains in a flat and stretched tension state throughout the cutting process. This completely solves the problems of sickle bends and wavy edges in narrow strips after slitting. 2. This invention uses a gradient rebound spring with an increasing elastic coefficient near the longitudinal shear to form a progressive clamping force that provides strong pressure on the feed side and stable constraint in the cutting area. This counteracts the elastic rebound and up-and-down shaking of the stainless steel sheet during the cutting process, ensuring that the longitudinal shear completes the cutting in a stable state where the sheet is completely flat and without any movement. This avoids cutting defects such as burrs, collapsed edges, and slanted cuts from the source, ensuring the straightness and flatness of the sheet cut. It is suitable for the stringent cutting requirements of high-precision stainless steel sheets and improves the overall practicality of the device. 3. The present invention uses a straightening constraint structure with a buffer auxiliary device and a limiting roller. When local bending deformation occurs after the longitudinal shearing of the plate, the buffer auxiliary device drives the piston rod through the reset spring to press down and straighten the deformed part of the plate. The limiting roller keeps the plate in a taut state throughout the process, avoiding the cumulative amplification of bending. At the same time, it forms a rigid constraint to suppress the vibration, movement and floating of the plate during high-speed conveying and cutting, prevent the plate from deviating and jamming, and effectively improve the cutting quality of stainless steel plates. 4. This invention utilizes a differentiated configuration of a buffer auxiliary device with a larger elastic coefficient and a hydraulic damper, combined with a cross-connected hydraulic communication structure, to form an adaptive clamping mechanism that responds to deformation at one point and multiple points. When the pressure roller in the middle area presses down, the pressure oil is bidirectionally diverted to form superimposed extrusion force, so that the clamping force in the middle part of the plate is higher than that at the edge part. This effectively suppresses common problems such as arching, wave deformation, and local bulging in the cutting process of stainless steel plates, and significantly improves the cutting accuracy and production efficiency of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the top structure of the fixing base of the present invention; Figure 4 This is a cross-sectional view of the fixing rod of the present invention; Figure 5 This is a schematic diagram of the longitudinal shearing of the sheet metal according to the present invention; Figure 6 This is a schematic diagram of the smoothing mechanism structure of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the connecting four-corner frame of the present invention; Figure 8 This is a cross-sectional view of the sliding chamber of the present invention; Figure 9 This is a cross-sectional view of the hydraulic damper of the present invention; Figure 10 This is a cross-sectional view of the buffer aid of the present invention; Figure 11 This is a cross-sectional view of the buffer aid of the present invention.

[0015] In the diagram: 1. Workbench; 2. Unwinding roller; 3. First motor; 4. Slitting sheet; 5. Fixing frame; 6. Fixing base; 7. Fixing rod; 8. Connecting rod; 9. Rewinding roller; 10. First electric push rod; 11. Limiting rod; 12. Second electric push rod; 13. Buffer auxiliary device; 14. Connecting frame; 15. First pressure roller; 16. Pressure sensor; 17. Connecting shaft; 18. Rebound spring; 19. Connecting hose; 20. Connecting four-corner frame; 21. Second motor; 22. Sliding chamber; 23. Sleeve rod; 24. Extrusion ball; 25. Telescopic cylinder; 26. Abutment block; 27. Third motor; 28. Spur gear; 29. ​​Spur gear ring; 30. Sliding shears; 31. Limiting roller; 32. Hydraulic damper; 33. First connecting chamber; 34. Auxiliary wheel; 35. Second connecting chamber; 36. Columnar rotating rod. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0018] Please see Figures 1 to 11This embodiment provides a high-precision stainless steel sheet slitting machine, including: a worktable 1, with an unwinding roller 2 mounted on the top of the worktable 1, two fixed seats 6 fixedly connected to the top of the worktable 1, and a fixed rod 7 fixedly connected to the top of the two fixed seats 6 by bolt assembly, with multiple take-up rollers 9 mounted on the outer wall of the fixed rod 7 by a drive structure, a fixed frame 5 fixedly connected to the top of the worktable 1, and a slitting sheet 4 installed between the unwinding roller 2 and the take-up rollers 9; a smoothing mechanism located inside the fixed frame 5, used to smooth and pull the cut part of the slitting sheet 4, and a first motor 3 fixedly connected to one side of the fixed frame 5, with the actuator of the first motor 3 penetrating through the fixed frame 5. The internal fixed connection includes a connecting shaft 17, and multiple longitudinal shears 30 are installed on the outer wall of the connecting shaft 17. A limiting roller 31 is rotatably connected to the inner side of the fixed frame 5, and the limiting roller 31 is located below the longitudinally sheared plate 4 to provide support. The drive structure includes multiple sleeve rods 23 rotatably connected to the outer wall of the fixed rod 7. Two telescopic cylinders 25 are fixedly connected to the inner side of each sleeve rod 23, and the two telescopic cylinders 25 are symmetrically arranged about the center of the sleeve rod 23. Each of the two telescopic cylinders 25 has an abutment block 26 fixedly connected to its actuating end extending to the outside of the sleeve rod 23. A take-up roller 9 is sleeved on the outer wall of the sleeve rod 23. Multiple longitudinal shears 30 are installed on the inner side of the fixed rod 7. The third motors 27 are evenly arranged, and each of the actuators of the third motors 27 is fixedly connected to a spur gear 28. A spur gear ring 29 meshing with the spur gear 28 is fixedly connected to the inner side of each sleeve rod 23. The smoothing mechanism includes multiple second electric push rods 12 fixedly connected to the top of the fixed frame 5 and the bottom of the worktable 1. The actuators of the multiple second electric push rods 12 located at the top of the fixed frame 5 extend through to the inner side of the fixed frame 5 and are fixedly connected to a hydraulic damper 32. The actuators of the hydraulic dampers 32 are fixedly connected to a connecting four-corner bracket 20. The actuators of the multiple second electric push rods 12 located at the bottom of the worktable 1 are respectively fixedly connected to a connecting four-corner bracket 20. The corner frame 20 has two second motors 21 fixedly connected to one side of the corner frame 20. The execution ends of the two second motors 21 pass through to the inner side of the corner frame 20 and are respectively fixedly connected to a columnar rotating rod 36. The smoothing mechanism also includes multiple sets of connecting rods 8 fixedly connected to the outer wall of a columnar rotating rod 36. Each set of connecting rods 8 is arranged in a circumferential array. A sliding chamber 22 is slidably connected to the outer wall of each connecting rod 8. A spring 18 is installed between the sliding chamber 22 and the connecting rod 8. The spring force coefficient of each set of spring 18 gradually increases from away from the longitudinal shears 30 to gradually approaching the longitudinal shears 30. The front end of the sliding chamber 22 is embedded with a compression ball 24. The unwinding roller 2 is driven by a servo motor. Fixed frames are installed on both sides of the worktable 1. An auxiliary roller is rotatably connected between the two fixed frames and is set on the left side of the unwinding roller 2 to limit the longitudinally slitting plate 4. Since how to unwind and longitudinally slit the longitudinally slitting plate 4 is existing technology, it is not described in detail in this solution. The hydraulic damper 32 is composed of components such as cylinder body, piston rod, accumulator, seals, damping medium and return spring. Since it is an existing device, it will not be described in detail here. The buffer auxiliary device 13 is also composed of a cylinder, piston rod, return spring, and seals. The space between the piston rod and the cylinder is filled with hydraulic oil for the operation of the hydraulic damper 32. During the compression process of the hydraulic damper 32, the hydraulic oil can flow back to the buffer auxiliary device 13 through the second connecting chamber 35. During the extension of the return spring at the bottom of the buffer auxiliary device 13, the internal hydraulic oil is pushed into the second connecting chamber 35 through the piston rod and then flows back to the hydraulic damper 32. First, when the take-up roller 9 needs to be installed, first release the bolt assembly from the limiting position of the fixing rod 7, and use a large robotic arm or lifting device to remove the fixing rod 7 from the top of the fixing seat 6. Then, use the robotic arm to sequentially attach the take-up roller 9 to the outer wall of the connecting rod 23, and start the telescopic cylinder 25 to push the abutment block 26 to complete the positioning and fixing of the take-up roller 9. Next, return the fixing rod 7 to the fixing seat 6, and then lock it with bolts. Fix the slit sheet 4 after longitudinal cutting to the take-up roller 9 at the designated position. Finally, start the third motor 27 to drive the spur gear 28 to drive the spur gear ring 29 to rotate. At the same time, the output end of the first motor 3 rotates, thereby driving multiple longitudinal shears 30 to rotate and cut the slit sheet 4. At the same time, the take-up roller 9 performs the winding operation on the cut slit sheet 4. The stroke control of the second electric push rod 12 is carried out under the control of the PLC controller. Since it is a mature technology in the existing technology, it is not described in detail in this solution. Before the slitting and winding of the longitudinally sheared sheet 4, multiple sets of second electric push rods 12 are activated to move the connecting four-corner frame 20, causing the two sets of extrusion balls 24 to contact the upper and lower surfaces of the slitting sheet 4 respectively. When the return spring 18, which is arranged perpendicular to the slitting sheet 4, is compressed to four-fifths of its total stroke, the second electric push rod 12 stops running. Then, the first electric push rod 10 is activated to drive the connecting frame 14 downward until the return spring of the buffer auxiliary device 13 is compressed to four-fifths of its total stroke, at which point the first electric push rod 10 stops. After completing the above positioning, the servo motor is activated to drive the unwinding roller 2 to unwind, and the third motor 27 is activated to drive the winding roller 9 to wind up the cut slitting sheet 4. The second motor 21 is activated to drive the cylindrical rotating rod 36 to drive multiple sets of connecting rods 8 to rotate synchronously. The cylindrical rotating rod 36 on the left side of 30 rotates clockwise, and the cylindrical rotating rod 36 on the right side rotates counterclockwise, smoothing and pulling the stainless steel sheet outward at the cutting part. In addition, the elastic coefficient of the spring spring 18 increases from right to left. Since the elastic coefficient of the spring spring 18 gradually increases from the direction away from the longitudinal scissors 30 to the direction closer to the longitudinal scissors 30, it forms a gradual constraint on the sheet. Combined with the guidance of the upper and lower extrusion balls 24, it effectively overcomes the curling tendency of the stainless steel sheet itself, so that the sheet remains flat and smooth throughout the cutting and rolling process. The clamping force on the left side of the cutting area is stronger, which can effectively suppress the upward rebound and shaking of the sheet at the moment of cutting by the blade, so that the longitudinal scissors always cut in a stable and flat state, ensuring that the cut is neat, burr-free, and without collapsed edges, thereby improving the cutting efficiency of stainless steel sheet. The gradient rebound spring 18 with increasing elastic coefficient near the longitudinal shear 30 forms a progressive clamping force that strongly presses on the feed side and stably constrains the cutting area. This directly counteracts the elastic rebound and up-and-down shaking of the stainless steel sheet during the instant of cutting, ensuring that the longitudinal shear 30 completes the cutting in a stable state where the sheet is completely flat and without any movement. This avoids defects such as burrs, collapsed edges, slanted cuts, and slitting width deviations from the source, ensuring the straightness and flatness of the stainless steel sheet cut. It is suitable for the stringent cutting requirements of high-precision thin / medium-thick stainless steel sheets, thereby improving the overall practicality of the device. The cylindrical rotating rods 36 on both sides of the longitudinal shears 30 adopt a counter-rotating design with clockwise rotation on the left and counter-clockwise rotation on the right. Together with the symmetrical compression balls 24, they form a lateral tensioning force on the cutting part of the sheet metal. This not only counteracts the curling tendency of the stainless steel sheet metal itself, but also prevents the sheet metal from shifting or arching laterally during the cutting process. This keeps the sheet metal in a flat and relaxed tensioned state throughout the entire cutting process, and completely solves the problems of sickle bend and wavy edge of narrow strip after slitting.

[0019] Please see Figures 2-9A straightening unit, located above the longitudinally sheared plate 4, is used to straighten the cut portions of the longitudinally sheared plate 4. The straightening unit includes multiple first electric push rods 10 fixedly connected to the top of a fixed frame 5. The actuating end of each first electric push rod 10 extends through the inner side of the fixed frame 5 and is fixedly connected to a buffer auxiliary device 13. The actuating end of the buffer auxiliary device 13 is fixedly connected to a connecting frame 14 via a pressure sensor 16. A first pressure roller 15 is rotatably connected to the inner side of the connecting frame 14. Two limiting rods 11 are fixedly connected to the top of the first pressure roller 15. One end of each limiting rod 11 extends through the outside of the fixed frame 5 and is slidably connected to the fixed frame 5. A connecting component is provided between the buffer auxiliary device 13 and the hydraulic damper 32. The connecting component includes a second connecting chamber 35 fixedly connected to the outer wall of the three middle buffer auxiliary devices 13. The inner side of the second connecting chamber 35 is open... A first oil passage is provided that communicates with the oil port of the buffer auxiliary device 13. Two second oil passages are provided on the top of the second connecting chamber 35. A first connecting chamber 33 is fixedly connected to the outer wall of each hydraulic damper 32. A third oil passage is provided on the inner side of the first connecting chamber 33 that communicates with the oil port of the hydraulic damper 32. Two fourth oil passages are provided on one side of the first connecting chamber 33. A connecting hose 19 is installed between each of the two fourth oil passages and one of the second oil passages. Multiple auxiliary wheels 34 are rotatably connected to the inner top of the fixing frame 5 through a connecting seat. Two connecting hoses 19 overlap the outer wall of each auxiliary wheel 34. The inner sides of the two buffer auxiliary devices 13 located at the edge are respectively connected to one of the fourth oil passages of the two first connecting chambers 33 located at the edge through a connecting hose 19. The connection method of the connecting hoses 19 is a cross connection. When the longitudinally sheared plate 4 is locally bent and deformed after cutting, the buffer auxiliary device 13, under the action of its own installed return spring, applies downward pressure to the longitudinally sheared plate 4 through the piston rod, so that the bent part of the plate is quickly straightened and put into a taut state. At the same time, under the constraint of the limit roller 31, the longitudinally sheared plate 4 between the limit roller 31 and the longitudinal shear 30 can remain taut, avoiding the cumulative amplification of bending, ensuring that the plate remains flat during the longitudinal shearing process. Moreover, the buffer auxiliary device 13, together with the limit roller, forms a rigid constraint, which effectively suppresses the vibration, movement and floating of the plate during high-speed conveying and cutting process, ensuring that the plate does not deviate or jam during continuous operation, thereby improving the cutting quality of stainless steel plates. To address traditional problems such as localized bending, narrow strip sickle bends, and wavy edges caused by the release of internal stress after slitting stainless steel sheets, the buffer auxiliary device 13, in conjunction with the first pressure roller 15, forms a follow-up dynamic straightening mechanism: when localized protrusions / bending occur in the cut sheet, the buffer auxiliary device 13's built-in reset spring instantly drives the piston rod downwards, applying precise downward pressure to the deformed area through the first pressure roller 15. Combined with the rigid support of the lower limit roller 31, straightening is completed the instantaneously when deformation occurs, preventing the bending deformation from accumulating and amplifying along the conveying direction. This ensures that the strip material maintains straightness and flatness throughout the entire process after slitting, solving the problems of traditional fixed-gap pressure rollers being unable to adapt to localized deformation and lagging straightening. The first pressure roller 15 and the limiting roller 31 form a stable channel for clamping from top to bottom, applying a continuous and stable tension force to the cut sheet material, offsetting the internal stress rebound and lateral shrinkage of the sheet material after slitting, ensuring the width dimensional accuracy of the slitting strip, and avoiding uneven bandwidth and necking problems caused by the release of internal stress. When the slitting sheet 4 bends after cutting, causing a decrease in tension, the output end of the buffer auxiliary device 13, under the action of its own return spring, causes the piston rod to press down, which in turn causes the pressure value of the pressure sensor 16 to be lower than the initial set value. At this time, the pressure sensor 16 outputs an electrical signal to the PLC controller, which controls the third motor 27 to speed up the operation, thereby accelerating the winding speed of the slitting sheet 4 and gradually flattening the compressed sheet. When the pressure of the return spring of the buffer auxiliary device 13 on the pressure sensor 16 returns to the initial set value, the pressure sensor 16 stops sending electrical signals, and the PLC controller controls the third motor 27 to return to the initial speed. By dynamically adjusting the winding speed, stable tension is maintained, so that the sheet is wound evenly and without defects such as loose winding, stacking, or tower-shaped winding, thus improving the quality of the finished product and improving the cutting efficiency of the stainless steel sheet. The connecting hose 19 is cross-connected so that the buffer auxiliary device 13 located at the edge is connected to one of the fourth oil channels of the first connecting chamber 33 located at the edge through a connecting hose 19, and the other fourth oil channel located at the edge is connected to one of the second oil channels of the second connecting chamber 35 connected to the adjacent buffer auxiliary device 13, and so on. Both the buffer auxiliary device 13 and the hydraulic damper 32 are existing technologies, so the relevant structures are not shown in detail in the technical solution. The main purpose is to enable the internal elastic coefficients of the buffer auxiliary device 13 and the hydraulic damper 32 to be different through the extension and retraction of the piston at the output end of the buffer auxiliary device 13. The elastic coefficient of the buffer auxiliary device 13 is greater than that of the hydraulic damper 32. When the piston rod of the buffer auxiliary device 13 at the edge presses down on the longitudinally sheared plate 4, the hydraulic oil inside it is directly introduced into the first connecting chamber 33 through the connecting hose 19, and pushes the piston rod of the hydraulic damper 32 to extend, so that the corresponding connecting four corner brackets 20 drive the extrusion ball 24 to increase the clamping force on the longitudinally sheared plate 4. When the piston rod of any of the buffer auxiliary devices 13 in the middle position presses down on the longitudinally sheared plate 4, the hydraulic oil inside is squeezed into the second connecting chamber 35, and then transported through the connecting hose 19 to the two adjacent first connecting chambers 33 respectively, and flows into the two corresponding hydraulic dampers 32, pushing the piston rods of the two adjacent sets of hydraulic dampers 32 to press down, increasing the clamping force of the extrusion balls 24 on the longitudinally sheared plate 4. When the two adjacent first pressure rollers 15 press down at the same time, the extrusion force in the middle area of ​​the two adjacent sets of extrusion balls 24 will be higher than the extrusion force in the edge area, through cross-type The connecting hose 19 connects the buffer auxiliary device 13 and the hydraulic damper 32 in series, so that the local pressure deformation signal of the plate is directly converted into the corresponding clamping force increase, forming an adaptive clamping mechanism with one deformation and multiple responses. When the first pressure roller 15 in the middle area presses down, the pressure oil is simultaneously diverted to both sides, so that the two adjacent sets of extrusion balls 24 form superimposed extrusion force in the middle area, so that the clamping force in the middle part of the plate is higher than that in the edge part, effectively suppressing the common problems of middle arching, wave deformation and local bulging of stainless steel plates during cutting, thereby improving the cutting efficiency of the equipment.

[0020] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-precision stainless steel sheet slitting machine, characterized in that, include: A workbench (1) is provided with an unwinding roller (2) installed on its top. Two fixed seats (6) are fixedly connected to the top of the workbench (1). Fixed rods (7) are fixedly connected to the top of the two fixed seats (6) by bolt assemblies. Multiple take-up rollers (9) are installed on the outer wall of the fixed rods (7) by a drive structure. A fixed frame (5) is fixedly connected to the top of the workbench (1). A slitting plate (4) is installed between the unwinding roller (2) and the take-up roller (9). The smoothing mechanism is located inside the fixing frame (5) and is used to smooth and pull the cut part of the longitudinally sheared plate (4). The straightening unit is located above the longitudinally sheared plate (4) and is used to straighten the cut portion of the longitudinally sheared plate (4).

2. The high-precision stainless steel plate slitting machine according to claim 1, characterized in that, A first motor (3) is fixedly connected to one side of the fixed frame (5). The execution end of the first motor (3) extends through the interior of the fixed frame (5) and is fixedly connected to a connecting shaft (17). Multiple longitudinal shears (30) are installed on the outer wall of the connecting shaft (17). A limiting roller (31) is rotatably connected to the inner side of the fixed frame (5), and the limiting roller (31) is located below the longitudinal shear plate (4) to support it.

3. A high-precision stainless steel sheet slitting machine according to claim 2, characterized in that, The drive structure includes multiple sleeve rods (23) rotatably connected to the outer wall of the fixed rod (7). Two telescopic cylinders (25) are fixedly connected to the inner side of each sleeve rod (23), and the two telescopic cylinders (25) are symmetrically arranged about the center of the sleeve rod (23). The actuating end of each of the two telescopic cylinders (25) extends through to the outside of the sleeve rod (23) and is fixedly connected to an abutment block (26). The take-up roller (9) is sleeved on the outer wall of the sleeve rod (23). Multiple longitudinally uniformly arranged third motors (27) are installed on the inner side of the fixed rod (7). A spur gear (28) is fixedly connected to the actuating end of each third motor (27). A spur gear ring (29) meshing with the spur gear (28) is fixedly connected to the inner side of each sleeve rod (23).

4. A high-precision stainless steel sheet slitting machine according to claim 3, characterized in that, The smoothing mechanism includes multiple second electric push rods (12) fixedly connected to the top of the fixed frame (5) and the bottom of the workbench (1). The actuators of the multiple second electric push rods (12) located at the top of the fixed frame (5) penetrate into the inner side of the fixed frame (5) and are all fixedly connected to a hydraulic damper (32). The actuators of the hydraulic dampers (32) are fixedly connected to a connecting quadrangle frame (20). The actuators of the multiple second electric push rods (12) located at the bottom of the workbench (1) are respectively fixedly connected to a connecting quadrangle frame (20). Two second motors (21) are fixedly connected to one side of the connecting quadrangle frame (20). The actuators of the two second motors (21) penetrate into the inner side of the connecting quadrangle frame (20) and are respectively fixedly connected to a cylindrical rotating rod (36).

5. A high-precision stainless steel sheet slitting machine according to claim 4, characterized in that, The smoothing mechanism also includes multiple sets of connecting rods (8) fixedly connected to the outer wall of a cylindrical rotating rod (36). Each set of connecting rods (8) is arranged in a circumferential array. Each connecting rod (8) has a sliding chamber (22) slidably connected to its outer wall. A rebound spring (18) is installed between the sliding chamber (22) and the connecting rod (8). The elastic coefficient of each set of rebound springs (18) gradually increases from away from the longitudinal shears (30) to gradually approaching the longitudinal shears (30). The front end of the sliding chamber (22) is embedded with a compression ball (24).

6. A high-precision stainless steel sheet slitting machine according to claim 5, characterized in that, The straightening unit includes a plurality of first electric push rods (10) fixedly connected to the top of the fixed frame (5). The execution end of each first electric push rod (10) extends through the inner side of the fixed frame (5) and is fixedly connected to a buffer auxiliary device (13). The execution end of the buffer auxiliary device (13) is fixedly connected to a connecting frame (14) through a pressure sensor (16). The inner side of the connecting frame (14) is rotatably connected to a first pressure roller (15). The top of the first pressure roller (15) is fixedly connected to two limit rods (11). One end of the limit rod (11) extends through the outside of the fixed frame (5) and is slidably connected to the fixed frame (5). A communication component is provided between the buffer auxiliary device (13) and the hydraulic damper (32).

7. A high-precision stainless steel sheet slitting machine according to claim 6, characterized in that, The connecting component includes a second connecting chamber (35) fixedly connected to the outer wall of the three middle buffer aids (13). The inner side of the second connecting chamber (35) is provided with a first oil passage groove communicating with the oil port of the buffer aid (13). The top of the second connecting chamber (35) is provided with two second oil passage grooves. The outer wall of each hydraulic damper (32) is fixedly connected with a first connecting chamber (33). The inner side of the first connecting chamber (33) is provided with a third oil passage groove communicating with the oil port of the hydraulic damper (32). The first connecting chamber (33) is provided with two fourth oil passage grooves on one side. A connecting hose (19) is installed between each of the two fourth oil passage grooves and one of the second oil passage grooves. The inner top of the fixed frame (5) is rotatably connected with multiple auxiliary wheels (34) through a connecting seat. The outer wall of each auxiliary wheel (34) is covered with two connecting hoses (19).

8. A high-precision stainless steel sheet slitting machine according to claim 7, characterized in that, The inner sides of the two buffer aids (13) located at the edge are respectively connected to one of the fourth oil channels of the two first connecting chambers (33) located at the edge through a connecting hose (19), and the connecting hose (19) is connected in a cross-type manner.

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