Slitting unit and steel coil slitting forming process

By using pre-pressure components and heavy pressure components in the longitudinal shear unit, the problem of difficult to eliminate the bending of steel during longitudinal shearing is solved, and the straight state of the steel coil during longitudinal shearing is achieved, and the quality and accuracy of longitudinal shearing are improved.

CN120206241AInactive Publication Date: 2025-06-27NANJING BAOXING METAL PROCESSING CO LTD
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Patent Information

Application Number
CN202510343821.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-22
Publication Date
2025-06-27
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the longitudinal shearing process, the curve is difficult to eliminate, which affects the quality of the longitudinal shearing.

Method used

The combination of pre-pressure assembly and heavy pressure assembly is adopted to press the steel coil to a straight state through the pre-pressure guide surface and heavy pressure guide surface to ensure the straightness of the steel coil during the longitudinal shearing process.

Benefits of technology

It effectively avoids the bending problem of steel during longitudinal shearing, and improves the quality and accuracy of longitudinal shearing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a slitting unit and a steel coil slitting forming process, and relates to the field of slitting machines. The slitting machine comprises an operation table, an unwinding roller, a winding roller and a slitting machine, the unwinding roller, the winding roller and the slitting machine are installed on the operation table, a support plate is fixed to the operation table, a pre-pressing assembly and a heavy-pressing assembly are arranged on the support plate, and a pressurizing assembly is arranged between the pre-pressing assembly and the heavy-pressing assembly. The slitting device has the effect of improving the slitting quality.
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Description

Technical Field

[0001] The present application relates to the field of slitting machines, and in particular to a slitting machine unit and a steel coil slitting and forming process. Background Art

[0002] A slitting machine unit is a metal processing device used to unroll a metal coil and cut it into complete strips of the required width.

[0003] Currently, a slitting machine unit in the related art includes: a workbench, an unwinding roller, a slitting machine, and a winding roller. The unwinding roller, the slitting machine, and the winding roller are all installed on the workbench. During shearing, a coiled steel material is placed on the unwinding roller, and the steel material is pulled through the slitting machine and then to the winding roller; then, the winding roller is used to wind up the steel material, thereby longitudinally slitting the steel material.

[0004] However, since the steel material remains coiled for a long time, during the process of unwinding the steel material, the steel material will still maintain a certain degree of curvature, that is, the steel material cannot be longitudinally slit in a straight state, which is likely to affect the longitudinal slitting quality of the steel material. Summary of the Invention

[0005] In order to improve the problems existing in the above technology, the present application provides a slitting machine unit and a steel coil slitting and forming process.

[0006] In a first aspect, the present application provides a slitting machine unit, adopting the following technical solution: A slitting machine unit includes: an operation table, an unwinding roller, a winding roller, and a slitting machine installed on the operation table. A support plate is fixed on the operation table, and a preloading assembly and a heavy loading assembly are arranged on the support plate, and a pressurizing assembly is arranged between the preloading assembly and the heavy loading assembly.

[0007] By adopting the above technical solution, before the steel coil is longitudinally slit, the cooperation of the preloading assembly and the heavy loading assembly is used to press the steel coil to a straight state, so as to less likely affect the longitudinal slitting quality of the steel coil.

[0008] Optionally, the preloading assembly includes: a preloading block, a preloading rod, and a preloading spring. One end of the preloading rod is fixedly connected to the preloading block, and the other end penetrates through the support plate. The preloading spring is fixed between the preloading block and the support plate, and a preloading guiding surface is arranged on the preloading block.

[0009] By adopting the above technical solution, during longitudinal slitting, the steel coil passes under the preloading block by using the preloading guiding surface; and the preloading spring will press down the preloading block, so that the preloading block is pressed tightly against the steel coil, in order to press the steel coil to a straight state.

[0010] Optionally, the heavy pressing assembly includes: a heavy pressing block, a heavy pressing rod, a heavy pressing spring, and a counterweight block. One end of the heavy pressing rod is fixedly connected to the heavy pressing block, and the other end penetrates through the support plate. The heavy pressing spring is fixed between the heavy pressing block and the support plate. A heavy pressing guiding surface is provided on the heavy pressing block, and the counterweight block is fixed on the heavy pressing block.

[0011] By adopting the above technical solution, during slitting, after the steel coil undergoes the pre-pressing operation of the pre-pressing block, the steel coil passes under the heavy pressing block by using the heavy pressing guiding surface; and under the action of the pre-pressing spring and the counterweight block, the heavy pressing block can further press the steel coil to a flat state.

[0012] Optionally, the pressing assembly includes: a lower pressing plate, a pressing plate, a lower pressing rod, a pressing rod, a moving block, and a support rod. The support rod is fixed on the support plate. One end of the pressing rod is fixed to the pressing plate, and the other end is fixed to the lower pressing plate. And the heavy pressing spring is fixed between the heavy pressing block and the pressing plate. The moving block is slidably mounted on the lower pressing plate. The lower pressing rod is rotatably sleeved on the support rod, and one end of the lower pressing rod is hinged to the pre-pressing rod, and the other end is hinged to the moving block.

[0013] By adopting the above technical solution, when the steel coil passes through the pre-pressing block and the heavy pressing block, according to the thickness of the steel coil, the pre-pressing block will be lifted. At this time, the pre-pressing rod drives the lower pressing rod to rotate, so that the lower pressing rod can press down on the lower pressing plate, that is, the pressing plate presses down on the heavy pressing spring, so that the heavy pressing block can further press down on the steel coil to provide the quality of pressing the steel coil to a flat state.

[0014] Optionally, a heating assembly is provided on the pre-pressing rod. The heating assembly includes: a connecting rod, a controller, and a heating plate. The controller is installed on the operating table and is connected to the heating plate. One end of the connecting rod is fixed to the pre-pressing rod, and the other end is fixed to the heating plate.

[0015] By adopting the above technical solution, when the pre-pressing block rises, the heating plate also rises synchronously; and the controller controls the heating plate to start to heat the steel coil, so that compared with the steel coil at a low temperature, it is easier to be pressed to a flat state.

[0016] Optionally, the heating assembly further includes: a fixing rod, a contact block, a reaction spring, a reaction rod, and a pressure sensor. The fixing rod is fixed on the support plate, and a reaction groove is formed on the fixing rod. The pressure sensor is installed in the reaction groove and is connected to the controller. The contact block is arranged in the reaction groove. One end of the reaction rod is fixed to the connecting rod, and the other end is arranged in the reaction groove. The reaction spring is fixed between the reaction rod and the contact block.

[0017] By adopting the above technical solution, if the thickness of the steel coil is thicker, the value of the pressure sensor will be larger, and thus the heating temperature of the heating plate controlled by the controller will also increase to ensure good heating of the steel coil with a larger thickness.

[0018] Optionally, a blowing component is arranged between the operating table and the slitting machine. The blowing component includes: a housing, a rotating rod, blades, a driving rod, a first transmission belt, a driving gear and a driven gear. The housing is fixed on the operating table. The rotating rod is rotatably installed in the housing, and the blades are fixed on the rotating rod. The driven gear is coaxially sleeved on the rotating rod. The driving rod is rotatably installed on the operating table, and the driving gear is coaxially sleeved on the driving rod. The driving gear meshes with the driven gear. The first transmission belt is arranged in a transmission manner between the driving rod and the slitting machine. A ventilation hole is formed through the housing.

[0019] By adopting the above technical solution, after the steel coil is heavily pressed, the first transmission belt can drive the rotation of the driving rod, the driving gear, the driven gear, the rotating rod and the blades in sequence to achieve the effect of blowing the steel coil, so that the temperature of the steel coil can quickly return to normal and is not likely to affect the performance of the steel coil.

[0020] Optionally, a rectifying component is arranged on the operating table. The rectifying component includes: a fixing plate, a rectifying plate, an expanding plate and an adjusting screw. The fixing plate is fixed on the operating table. The rectifying plate is slidably installed on the operating table. The expanding plate is fixedly connected with the rectifying plate. The adjusting screw is threadedly penetrated through the fixing plate and rotatably connected with the rectifying plate.

[0021] By adopting the above technical solution, when the slitting machine performs slitting, the second transmission belt can drive the rotation of the worm, the worm gear and the rotating shaft in sequence. The rotation of the rotating shaft can drive the grinding sleeve to rotate, so that the grinding sleeve can grind the cutting wall of the steel coil to clean the burrs on the steel coil, thereby improving the quality of slitting the steel coil.

[0022] Optionally, a trimming component is arranged between the operating table and the slitting machine. The trimming component includes: a rotating shaft, a grinding sleeve, a worm gear, a worm and a second transmission belt. The rotating shaft and the worm are both rotatably installed on the operating table. The grinding sleeve and the worm gear are both coaxially sleeved on the rotating shaft. The worm is matched with the worm gear. The second transmission belt is arranged in a transmission manner between the slitting machine and the worm.

[0023] By adopting the above technical solution, according to the width of the steel coil, rotate the adjusting screw to change the distance between the two straightening plates until the distance is equal to the width of the steel coil; then, place the steel coil between the two straightening plates to straighten the steel coil so as to align with the slitting machine, thereby improving the slitting accuracy.

[0024] In a second aspect, the present application provides a steel coil slitting and forming process for a slitting unit, adopting the following technical solution: A steel coil slitting and forming process for a slitting unit includes the following steps: S1: Place the steel coil on the unwinding roller and fixedly connect the other end to the winding roller; S2: Start the winding roller to wind the steel coil; meanwhile, start the slitting machine to slit the steel coil.

[0025] By adopting the above technical solution, the operation of quickly slitting the steel coil can be achieved.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. Before the steel coil is slit, the cooperation of the pre-pressing component and the heavy-pressing component is used to press the steel coil into a flat state, so that the slitting quality of the steel coil is not easily affected.

[0027] 2. During slitting, after the steel coil undergoes the pre-pressing operation of the pre-pressing block, the steel coil passes under the heavy-pressing block along the heavy-pressing guiding surface; and under the action of the pre-pressing spring and the counterweight block, the heavy-pressing block can further press the steel coil into a flat state.

[0028] 3. According to the width of the steel coil, rotate the adjusting screw to change the distance between the two straightening plates until the distance is equal to the width of the steel coil; then, place the steel coil between the two straightening plates to straighten the steel coil so as to align with the slitting machine, thereby improving the slitting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram according to an embodiment of the present application; Figure 2 is Figure 1 a schematic top view of Figure 3 is along Figure 2 the sectional line A-A in Figure 4 is Figure 3 a schematic partial enlarged view of part B in Figure 5 is Figure 3 a schematic partial enlarged view of part C in Figure 6 isFigure 3 Schematic partial enlarged view of part D in the middle.

[0030] In the figure: 1. Operating table; 11. Unwinding roller; 12. Rewinding roller; 13. Slitting machine; 14. Support plate; 2. Pre-pressing assembly; 21. Pre-pressing block; 22. Pre-pressing rod; 23. Pre-pressing spring; 3. Heavy-pressing assembly; 31. Heavy-pressing block; 32. Heavy-pressing rod; 33. Heavy-pressing spring; 34. Counterweight block; 4. Pressing assembly; 41. Lower pressing plate; 42. Pressing plate; 43. Lower pressing rod; 44. Pressing rod; 45. Moving block; 46. Support rod; 5. Heating assembly; 51. Connecting rod; 52. Controller; 53. Heating plate; 54. Fixed rod; 541. Reaction tank; 55. Contact block; 56. Reaction spring; 57. Reaction rod; 58. Pressure sensor; 6. Blowing assembly; 61. Housing; 62. Rotating rod; 63. Blade; 64. Driving rod; 65. First transmission belt; 66. Driving gear; 67. Driven gear; 7. Straightening assembly; 71. Fixed plate; 72. Straightening plate; 73. Expanding plate; 74. Adjusting screw; 8. Trimming assembly; 81. Rotating shaft; 82. Grinding sleeve; 83. Worm gear; 84. Worm; 85. Second transmission belt. Specific implementation manner

[0031] This application provides a slitting machine unit.

[0032] See Figure 1 , a slitting machine unit includes: an operating table 1 and an unwinding roller 11, a rewinding roller 12 and a slitting machine 13 installed on the operating table 1. In the embodiment of this application, the rewinding roller 12 is driven to rotate by a motor; the slitting machine 13 is a conventional slitting machine 13 in the market.

[0033] See Figure 1 , further, a straightening assembly 7 is provided on the top wall of the operating table 1. In the embodiment of this application, there are two straightening assemblies 7 and they are symmetrically arranged. The straightening assembly 7 includes: a fixed plate 71, a straightening plate 72, an expanding plate 73 and an adjusting screw 74. The fixed plate 71 is fixed on the top wall of the operating table 1, and the fixed plate 71 is located on the side of the unwinding roller 11 close to the slitting machine 13. The straightening plate 72 is slidably installed on the operating table 1 and slides along the width direction of the operating table 1; one end of the adjusting screw 74 is threadedly penetrated through the fixed plate 71 and the other end is rotatably connected to the straightening plate 72. According to the width of the steel coil, the adjusting screw 74 is rotated to change the distance between the two straightening plates 72 until the distance is equal to the width of the steel coil; then, the steel coil is placed between the two straightening plates 72, so as to straighten the steel coil, so as to align with the slitting machine 13, thereby improving the slitting accuracy.

[0034] See Figure 1, In addition, one end of the expansion plate 73 close to the unwinding roller 11 is fixedly connected to the correction plate 72, and the expansion plate 73 is inclined toward the side close to the fixed plate 71. The expansion plate 73 can make it more convenient to insert the steel coil between the two correction plates 72.

[0035] See Figure 2 , Figure 3 and Figure 4 , Further, a trimming assembly 8 is provided between the operating table 1 and the slitting machine 13, and the trimming assembly 8 is located between the slitting machine 13 and the winding roller 12. The trimming assembly 8 includes: a rotating shaft 81, a grinding sleeve 82, a worm gear 83, a worm 84, and a second transmission belt 85. The rotating shaft 81 is vertically rotatably installed on the top wall of the operating table 1. In the embodiment of the present application, there are multiple rotating shafts 81, which are arranged at intervals along the width direction of the operating table 1; the grinding sleeve 82 and the worm gear 83 are both coaxially sleeved on the rotating shaft 81. After the steel coil is slit by the slitting machine, there will be multiple steel coils. The grinding sleeve 82 can be located between adjacent slit steel coils.

[0036] See Figure 4 , The worm 84 is horizontally rotatably installed on the top wall of the operating table 1, and the worm gear 83 is engaged with the worm 84; the second transmission belt 85 is drivingly arranged between the worm 84 and the slitting machine 13. When the slitting machine 13 performs slitting, the second transmission belt 85 can drive the worm 84, the worm gear 83, and the rotating shaft 81 to rotate in sequence. The rotation of the rotating shaft 81 can drive the grinding sleeve 82 to rotate, so that the grinding sleeve 82 can grind the cutting wall of the steel coil to remove the burrs on the steel coil, thereby improving the quality of the slitting of the steel coil.

[0037] See Figure 3 , A support plate 14 is fixedly arranged on the top wall of the operating table 1. The support plate 14 is in a "U" shape; and a pre-pressing assembly 2 and a heavy-pressing assembly 3 are arranged on the support plate 14, and the pre-pressing assembly 2 is located on the side of the heavy-pressing assembly 3 close to the unwinding roller 11. Before the steel coil is slit by the slitting machine 13, the steel coil will be pre-pressed by the pre-pressing assembly 2 first; then, it will pass through the heavy-pressing assembly 3 and be pressed down by the heavy-pressing assembly 3, so that the steel coil can be in a flat state to provide the quality and accuracy of slitting.

[0038] See Figure 3 , The pre-pressing assembly 2 includes: a pre-pressing block 21, a pre-pressing rod 22, and a pre-pressing spring 23. One end of the pre-pressing rod 22 is fixedly connected to the top wall of the pre-pressing block 21, and the other end passes through the support plate 14, and the pre-pressing block 21 is located below the support plate 14. The pre-pressing spring 23 is fixed between the top wall of the pre-pressing block 21 and the bottom wall of the support plate 14, and the pre-pressing spring 23 is used to press down the pre-pressing block 21.

[0039] See Figure 3, a preloading block 21 is provided with a preloading guiding surface on the side facing the unwinding roller 11. During slitting, the steel coil passes under the preloading block 21 by using the preloading guiding surface; and the preloading spring 23 presses down on the preloading block 21, so that the preloading block 21 presses tightly against the steel coil to press the steel coil into a flat state.

[0040] See Figure 3 , the heavy pressing assembly 3 includes: a heavy pressing block 31, a heavy pressing rod 32, a heavy pressing spring 33 and a counterweight block 34. One end of the heavy pressing rod 32 is fixed to the top wall of the heavy pressing block 31, and the other end penetrates through the support plate 14. The heavy pressing block 31 is located between the preloading block 21 and the slitting machine 13; the heavy pressing spring 33 is fixed between the top wall of the heavy pressing block 31 and the bottom wall of the support plate 14, and the heavy pressing spring 33 is used to press down on the heavy pressing block 31. The counterweight block 34 is fixed to the heavy pressing block 31, and the counterweight block 34 can cooperate with the heavy pressing spring 33 to increase the downward pressure of the heavy pressing block 31.

[0041] See Figure 3 , a heavy pressing guiding surface is provided on the side of the heavy pressing block 31 close to the preloading block 21. During slitting, after the steel coil undergoes the preloading operation of the preloading block 21, the steel coil passes under the heavy pressing block 31 by using the heavy pressing guiding surface; and under the action of the preloading spring 23 and the counterweight block 34, the heavy pressing block 31 can further press the steel coil into a flat state.

[0042] See Figure 3 and Figure 5 , further, a pressurizing assembly 4 is provided between the preloading rod 22 and the heavy pressing block 31. The pressurizing assembly 4 includes: a lower pressing plate 41, a pressurizing plate 42, a lower pressing rod 43, a pressurizing rod 44, a moving block 45 and a support rod 46. The support rod 46 is horizontally fixed to the top wall of the support plate 14; one end of the pressurizing rod 44 is fixedly connected to the top wall of the pressurizing plate 42, and the other end is fixedly connected to the bottom wall of the lower pressing plate 41; the heavy pressing spring 33 is fixed between the pressurizing plate 42 and the heavy pressing block 31. In the embodiment of the present application, the pressurizing plate 42 is located below the support plate 14, and the lower pressing plate 41 is located above the support plate 14.

[0043] See Figure 3 and Figure 5 , the moving block 45 is slidably mounted on the top wall of the lower pressing plate 41 and slides along the length direction of the operation table 1; the lower pressing rod 43 is rotatably sleeved on the support rod 46, and one end of the lower pressing rod 43 is hinged to the preloading rod 22 and the other end is hinged to the moving block 45. When the steel coil passes through the preloading block 21 and the heavy pressing block 31, according to the thickness of the steel coil, the preloading block 21 will be lifted. At this time, the preloading rod 22 drives the lower pressing rod 43 to rotate, so that the lower pressing rod 43 can press down on the lower pressing plate 41, that is, the pressurizing plate 42 presses down on the heavy pressing spring 33, so that the heavy pressing block 31 can further press down on the steel coil to provide the quality of pressing the steel coil into a flat state.

[0044] SeeFigure 1 and Figure 3 Further, a heating assembly 5 is provided on the pre-pressing rod 22. The heating assembly 5 includes: a connecting rod 51, a controller 52, and a heating plate 53. The controller 52 is installed on the operating table 1 and is connected to the heating plate 53. One end of the connecting rod 51 is fixedly connected to the pre-pressing rod 22, and the other end is fixedly connected to the heating plate 53. While the pre-pressing block 21 rises, the heating plate 53 also rises synchronously. And the controller 52 controls the heating plate 53 to start to heat the steel coil (the heating temperature does not affect the performance of the steel coil), so that compared with the steel coil at a lower temperature, it is easier to be pressed into a flat state.

[0045] See Figure 6 As shown, the heating assembly 5 further includes: a fixed rod 54, a contact block 55, a reaction spring 56, a reaction rod 57, and a pressure sensor 58. The fixed rod 54 is vertically fixed on the top wall of the support plate 14. A reaction groove 541 is formed on the side of the fixed rod 54 facing the pre-pressing rod 22 and along the vertical direction. The pressure sensor 58 is installed on the inner top wall of the reaction groove 541 and is connected to the controller 52. The contact block 55 is arranged in the reaction groove 541 and is in contact with the pressure sensor 58.

[0046] See Figure 6 As shown, one end of the reaction rod 57 is slidably installed in the reaction groove 541, and the other end is fixedly connected to the connecting rod 51. The reaction spring 56 is fixed between the reaction rod 57 and the contact block 55. When the connecting rod 51 drives the heating plate 53 to rise, the reaction rod 57 will also rise synchronously to compress the reaction spring 56, so that the contact block 55 will exert an increased pressure on the pressure sensor 58. If the thickness of the steel coil is thicker, the value of the pressure sensor 58 will be larger, so that the controller 52 will control the heating temperature of the heating plate 53 to rise, so as to ensure that a thicker steel coil can also be heated well.

[0047] See Figure 3 and Figure 5 As shown and, a blowing assembly 6 is arranged between the operating table 1 and the slitting machine 13. The blowing assembly 6 includes: a housing 61, a rotating rod 62, blades 63, a driving rod 64, a first transmission belt 65, a driving gear 66, and a driven gear 67. The housing 61 is fixed on the top wall of the operating table 1. The bottom of the housing 61 is open, and a ventilation hole is formed through the top wall of the housing 61. The rotating rod 62 is vertically rotatably installed in the housing 61, and the blades 63 are fixed on the rotating rod 62. The driven gear 67 is coaxially sleeved on the rotating rod 62.

[0048] See Figure 3 and Figure 5, the driving rod 64 is horizontally rotatably installed on the top wall of the operating platform 1, and the driving gear 66 is coaxially sleeved on the driving rod 64, and the driving gear 66 meshes with the driven gear 67. The first transmission belt 65 is transmissionally arranged between the slitting machine 13 and the driving rod 64. After the steel coil is heavily pressed, the first transmission belt 65 can drive the driving rod 64, the driving gear 66, the driven gear 67, the rotating rod 62 and the blade 63 to rotate in sequence, so as to achieve the effect of blowing air on the steel coil, thereby quickly restoring the temperature of the steel coil to normal and not easily affecting the performance of the steel coil.

[0049] The working principle of a slitting unit of the present application during use is specifically as follows: During slitting, the steel coil passes under the preloading block 21 by using the preloading guide surface; and the preloading spring 23 presses down on the preloading block 21, so that the preloading block 21 is pressed tightly against the steel coil to press the steel coil into a flat state.

[0050] The present application also provides a steel coil slitting and cutting forming process for a slitting unit.

[0051] A steel coil slitting and cutting forming process for a slitting unit includes the following steps: S1: Place the steel coil on the unwinding roller 11 and fixedly connect the other end to the winding roller 12; S2: Start the winding roller 12 to wind up the steel coil; at the same time, start the slitting machine 13 to slit and cut the steel coil.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A slitting machine unit, characterized in that: include: An operating table (1) and an unwinding roller (11), a winding roller (12) and a slitting machine (13) installed on the operating table (1); a bracket plate (14) is fixed on the operating table (1); a pre-pressing component (2) and a heavy-pressing component (3) are arranged on the bracket plate (14); and a pressurizing component (4) is arranged between the pre-pressing component (2) and the heavy-pressing component (3).

2. The slitting machine assembly according to claim 1, characterized in that: The pre-stressing assembly (2) comprises: a pre-stressing block (21), a pre-stressing rod (22) and a pre-stressing spring (23); one end of the pre-stressing rod (22) is fixedly connected to the pre-stressing block (21), and the other end thereof passes through the bracket plate (14); the pre-stressing spring (23) is fixed between the pre-stressing block (21) and the bracket plate (14); and a pre-stressing guide surface is provided on the pre-stressing block (21).

3. The slitting unit according to claim 2, characterized in that: The weight assembly (3) comprises: a weight block (31), a weight rod (32), a weight spring (33) and a counterweight block (34); one end of the weight rod (32) is fixedly connected to the weight block (31), and the other end passes through the bracket plate (14); the weight spring (33) is fixed between the weight block (31) and the bracket plate (14); a weight guide surface is provided on the weight block (31); and the counterweight block (34) is fixed on the weight block (31).

4. The slitting machine assembly according to claim 3, characterized in that: The pressurizing assembly (4) comprises: a lower pressure plate (41), a pressure plate (42), a lower pressure rod (43), a pressure rod (44), a moving block (45) and a support rod (46), wherein the support rod (46) is fixed on the bracket plate (14), one end of the pressure rod (44) is fixed to the pressure plate (42), and the other end is fixed to the lower pressure plate (41), and the weight pressure spring (33) is fixed between the weight pressure block (31) and the pressure plate (42), the moving block (45) is slidably installed on the lower pressure plate (41), the lower pressure rod (43) is rotatably sleeved on the support rod (46), and one end of the lower pressure rod (43) is hinged to the pre-pressure rod (22), and the other end is hinged to the moving block (45).

5. The slitting machine assembly according to claim 2, characterized in that: A heating assembly (5) is arranged on the pre-pressing rod (22), and the heating assembly (5) comprises: a connecting rod (51), a controller (52) and a heating plate (53); the controller (52) is mounted on the operating table (1) and connected to the heating plate (53); one end of the connecting rod (51) is fixed to the pre-pressing rod (22), and the other end is fixed to the heating plate (53).

6. The slitting machine assembly according to claim 5, characterized in that: The heating assembly (5) further comprises: a fixing rod (54), a contact block (55), a reaction spring (56), a reaction rod (57) and a pressure sensor (58); the fixing rod (54) is fixed on the support plate (14), and a reaction groove (541) is provided on the fixing rod (54); the pressure sensor (58) is installed in the reaction groove (541) and connected to the controller (52); the contact block (55) is arranged in the reaction groove (541); one end of the reaction rod (57) is fixed to the connecting rod (51) and the other end is arranged in the reaction groove (541); the reaction spring (56) is fixed between the reaction rod (57) and the contact block (55).

7. The slitting machine assembly according to claim 6, characterized in that: A blowing assembly (6) is arranged between the operating table (1) and the slitting machine (13), the blowing assembly (6) comprising: a housing (61), a rotating rod (62), a blade (63), a driving rod (64), a first transmission belt (65), a driving gear (66) and a driven gear (67), the housing (61) being fixed on the operating table (1), the rotating rod (62) being rotatably mounted in the housing (61), and the blade (63) being fixed to the rotating rod (62), the driven gear (67) is coaxially sleeved on the rotating rod (62), the driving rod (64) is rotatably mounted on the operating table (1), and the driving gear (66) is coaxially sleeved on the driving rod (64), the driving gear (66) is meshed with the driven gear (67), the first transmission belt (65) is transmission-arranged between the driving rod (64) and the longitudinal shear (13), and a ventilation hole is penetrated through the housing (61).

8. The slitting machine assembly according to claim 1, characterized in that: The operating table (1) is provided with a correction component (7), and the correction component (7) comprises: a fixed plate (71), a correction plate (72), an expansion plate (73) and an adjustment screw (74), wherein the fixed plate (71) is fixed on the operating table (1), the correction plate (72) is slidably mounted on the operating table (1), the expansion plate (73) is fixedly connected to the correction plate (72), and the adjustment screw (74) is threadedly passed through the fixed plate (71) and is rotationally connected to the correction plate (72).

9. The slitting machine assembly according to claim 1, characterized in that: A trimming assembly (8) is arranged between the operating table (1) and the longitudinal shear (13), and the trimming assembly (8) comprises: a rotating shaft (81), a grinding sleeve (82), a worm wheel (83), a worm (84) and a second transmission belt (85). The rotating shaft (81) and the worm (84) are both rotatably mounted on the operating table (1), the grinding sleeve (82) and the worm wheel (83) are both coaxially sleeved on the rotating shaft (81), the worm (84) cooperates with the worm wheel (83), and the second transmission belt (85) is arranged between the longitudinal shear (13) and the worm (84) for transmission.

10. The steel coil slitting and forming process based on the slitting unit according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: placing the steel coil on the unwinding roller (11) and fixing the other end to the winding roller (12); S2: Start the winding roller (12) to wind up the steel coil; at the same time, start the slitting machine (13) to slitting the steel coil.