Slitting unit for slitting and forming steel coil

Abstract

The invention provides a slitting unit for slitting and forming a steel coil, and relates to the technical field of steel coil machining equipment. The device comprises a rack, a supporting plate assembly, an unwinding assembly, a cutting assembly and a winding assembly, a supporting plate channel is formed in the supporting plate assembly, and the supporting plate channel comprises a straight plate section and a bent plate section; the unwinding assembly is arranged at the end opening of the straight plate section and can store a steel coil and drive a strip of the steel coil to move along the supporting plate channel. The cutting assembly is arranged above the straight plate section and can cut the strip material passing through the lower part of the cutting assembly into a plurality of strip materials; the winding assembly comprises a winding roller and a driving device, the winding roller is rotationally connected to the rack, a plate inserting groove is formed in the side, facing the bent plate section, of the roller face of the winding roller, the strip can be inserted into the plate inserting groove along the bent plate section and is connected with the winding roller, and the driving device is in transmission connection with the winding roller and can drive the winding roller to rotate so as to wind the strip. The steel coil shearing device has the effect of being high in steel coil shearing efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of steel coil processing equipment, and in particular to a slitting unit for slitting and forming steel coils. Background Art

[0002] Steel coil is a kind of rolled steel plate produced by various steel rolling enterprises to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. Before the secondary processing of the steel coil, it is necessary to use a slitting machine to cut the steel coil along the length direction.

[0003] Existing slitting machines generally include a feed roll, a cutter roll and a winding roll. The feed roll is used to receive the steel coil and convey it layer by layer to the winding roll. The cutter roll is arranged between the feed roll and the winding roll and can cut the steel coil passing through it into multiple steel strips. The winding roll can wind and store these steel strips.

[0004] However, before using the winding roller to wind up a roll of cut steel strip, the user must first cut one end of the steel strip into multiple steel strips with a cutting roller, and then manually connect the ends of these steel strips to the winding roller respectively before using the winding roller to wind up the steel strip, which makes the efficiency of the slitting machine in cutting the steel strip low.

[0005] In view of this, it is necessary to provide a longitudinal shearing unit for longitudinally shearing and slitting steel coils. Summary of the invention

[0006] In order to solve the problem that when an existing slitting machine cuts a steel coil, the user needs to manually connect the steel strip cut from the steel coil with the winding roller, thereby resulting in low cutting efficiency of the steel coil by the slitting machine, the present application provides a slitting unit for slitting and forming steel coils.

[0007] The present application provides a slitting unit for slitting and forming steel coils, which adopts the following technical solution: comprising a frame, a support plate assembly, a reeling assembly, a slitting assembly and a reeling assembly, wherein a support plate channel is formed on the support plate assembly, and the support plate channel comprises a straight plate section and a curved plate section; The unwinding assembly is arranged at the end of the straight plate section, and the unwinding assembly can store the steel coil and drive the strip of the steel coil to move along the support plate channel; The cutting assembly is arranged above the straight plate section and is capable of cutting the strip passing under the cutting assembly into a plurality of strips; The winding assembly includes a winding roller and a driving device. The winding roller is rotatably connected to the frame, and a plug-in plate groove is provided on the roller surface of the winding roller on the side facing the bent plate section. The strip material can be inserted into the plug-in plate groove along the bent plate section and connected to the winding roller. The driving device is transmission-connected to the winding roller and can drive the winding roller to rotate to wind up the strip material.

[0008] By adopting the above technical solution, when it is necessary to cut the steel coil, the user can first install the steel coil on the unwinding assembly, and then start the unwinding assembly to release the strip of the steel coil along the pallet channel toward the winding roller. These strips will first pass under the cutting assembly and be cut into multiple strips, and then these strips will continue to move along the bent plate section and automatically be inserted into the plug plate slot and connected to the winding roller. Then the user can start the driving device to drive the winding roller to rotate and wind up these strips, thereby realizing automatic winding of the steel coil after cutting, without the need for the user to manually connect the steel strip cut from the steel coil to the winding roller, so that the longitudinal shearing unit for longitudinally shearing and forming the steel coil has good shearing efficiency for the steel coil.

[0009] Specifically, the support plate assembly includes a bottom plate, at least one partition plate and two side plates, the winding roller is arranged above the bottom plate, one end of the bottom plate surface extends toward the winding roller and forms the bottom wall of the curved plate section, and the other end of the bottom plate surface extends toward the unwinding assembly and forms the bottom wall of the straight plate section; The partition and the two side plates are arranged in parallel and at intervals on the plate surface of the bottom plate, and the partition is located between the two side plates and divides the straight plate section between the two side plates into a plurality of strip plate channels, the strip plate channels correspond to the strip materials one by one, one end of each strip plate channel is located at the junction of the straight plate section and the bent plate section, the other end of each strip plate channel extends toward the direction close to the cutting assembly, and a limiting protrusion is provided on the inner side wall of each strip plate channel, and the limiting protrusion can abut against the top of the strip material.

[0010] By adopting the above technical scheme, each strip material can move along its own strip plate channel toward the bent plate section, and bend upward along the bent plate section to automatically insert into the plug plate slot and connect with the winding roller, and the limiting protrusions on the inner side wall of each strip plate channel can abut against the top of the strip material in the strip plate channel and limit the strip material, so that when the end of the strip material is inserted into the plug plate slot, the part of the strip material located in the strip plate channel is not easily bent due to the reaction force.

[0011] Furthermore, the support plate assembly also includes a plurality of rolling elements, each of which is rotatably connected to the bottom wall of the bent plate section, and each of which can abut against the bottom of the strip material.

[0012] By adopting the above technical solution, the rolling element can abut against the bottom of the strip and reduce the friction between the strip and the bottom wall of the bent plate section, so that the strip is easier to bend upward along the bent plate section.

[0013] Furthermore, the support plate assembly also includes an adjusting unit, the partition is slidably connected to the bottom plate, and the adjusting unit is transmission-connected to the partition and can drive the partition to move back and forth between the two side plates.

[0014] By adopting the above technical solution, the user can drive the partition to move back and forth between the two side plates through the adjustment unit, and then adjust the width of the strip channel on both sides of the partition, so that these strip channels can accommodate strips of different widths.

[0015] Further, the adjustment unit includes an adjustment screw and an adjustment motor, a slide groove is provided on the plate surface of the bottom plate along the width direction of the straight plate section, the adjustment screw is arranged in the slide groove along the length direction of the slide groove and is rotatably connected to the groove wall of the slide groove, a sliding protrusion is provided at the bottom of the partition plate, the sliding protrusion is inserted into the slide groove and abuts against the side wall of the slide groove, and a screw hole is provided on the sliding protrusion and is sleeved on the adjustment screw through the screw hole; The adjusting motor is drivingly connected to the adjusting screw and can drive the adjusting screw to rotate.

[0016] By adopting the above technical solution, the adjusting motor can drive the sliding protrusion to move along the sliding groove by driving the adjusting screw to rotate, and then the sliding protrusion drives the partition to move along the width direction of the straight plate section.

[0017] Furthermore, the frame includes a lifting platform, which is connected to the winding roller and can drive the winding roller to approach or move away from the bottom plate.

[0018] By adopting the above technical solution, while waiting for the end of the strip material to be plugged into the plug-in plate slot, the user can use the lifting platform to drive the winding roller close to the bottom plate, so that the strip material can be inserted into the plug-in plate slot after leaving the bent plate section; after the strip material and the winding roller are connected, the user can use the lifting platform to drive the winding roller away from the bottom plate, so that the bottom plate will not hinder the winding roller from winding up the strip material.

[0019] Furthermore, it also includes a sensor and a controller, wherein the sensor is arranged on the frame and can detect the thickness of the strip material on the winding roller, and the sensor is electrically connected to the controller and can send the detection result to the controller, and the controller can control the lifting and lowering of the lifting platform according to the detection result.

[0020] By adopting the above technical solution, the controller can control the lifting and lowering of the lifting platform according to the thickness of the strip material on the winding roller, thereby realizing automatic adjustment of the distance between the winding roller and the bottom plate.

[0021] Furthermore, the lifting platform includes a supporting platform and a driving cylinder, the supporting platform is provided with a rotating half hole, the rotating shaft of the winding roller is inserted into the rotating half hole and rotates in the rotating half hole; The piston rod of the driving cylinder is connected to the bottom of the supporting platform and can drive the supporting platform to rise and fall.

[0022] By adopting the above technical solution, the driving cylinder can drive the supporting platform and the winding roller to rise and fall through the telescopic piston rod; the winding roller can be rotatably connected to the supporting platform through the rotating half hole.

[0023] Furthermore, the driving device is a DC motor, which is arranged on the lifting platform, and the output shaft of the DC motor is connected to the rotating shaft of the winding roller.

[0024] By adopting the above technical solution, the DC motor can drive the winding roller to rotate in the rotating half hole.

[0025] Specifically, the insert plate slot runs through the entire length direction of the winding roller.

[0026] By adopting the above technical solution, after the winding roller has wound up a number of strips, the provision of the insert plate slot allows the user to directly take down the strips from one end of the winding roller, thereby facilitating the user to unload the material from the winding roller.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. It includes a frame, a support plate assembly, a unwinding assembly, a cutting assembly and a winding assembly. A support plate channel is formed on the support plate assembly, and the support plate channel includes a straight plate section and a curved plate section. The unwinding assembly is arranged at the port of the straight plate section, and the unwinding assembly can store the steel coil and drive the strip of the steel coil to move along the support plate channel. The cutting assembly is arranged above the straight plate section and can cut the strip passing through the bottom of the cutting assembly into multiple strips. The winding assembly includes a winding roller and a driving device. The winding roller is rotatably connected to the frame, and a plug-in plate groove is opened on the roller surface of the winding roller facing the curved plate section. The strip material can be inserted into the plug-in plate groove along the curved plate section and connected to the winding roller. The driving device is transmission-connected to the winding roller and can drive the winding roller Rotate to reel in strips. When the steel coil needs to be cut, the user can first install the steel coil on the unwinding assembly, and then start the unwinding assembly to release the strips of the steel coil along the pallet channel toward the direction close to the reeling roller. These strips will first pass under the cutting assembly and be cut into multiple strips. Then these strips will continue to move along the bent plate section and automatically insert into the slot of the insert plate and connect to the reeling roller. Then the user can start the driving device to drive the reeling roller to rotate and reel in these strips, thereby realizing automatic reeling of the steel coil after cutting, without the need for the user to manually connect the steel strip cut from the steel coil to the reeling roller, so that the slitting unit for slitting and forming the steel coil has good shearing efficiency for the steel coil; 2. It also includes a sensor and a controller. The frame includes a lifting platform, which is connected to the winding roller and can drive the winding roller close to or away from the bottom plate. The sensor is arranged on the frame and can detect the thickness of the strip on the winding roller. The sensor is electrically connected to the controller and can send the detection result to the controller. The controller can control the lifting and lowering of the lifting platform according to the detection result, so that when waiting for the end of the strip material to be plugged into the plug-in plate slot, the controller can control the lifting platform to drive the winding roller close to the bottom plate, so that the strip material can be inserted into the plug-in plate slot after leaving the bent plate section; after the strip material and the winding roller are connected, the controller can control the lifting platform to drive the winding roller away from the bottom plate, so that the bottom plate will not hinder the winding roller from winding up the strip material. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of a slitting unit for slitting and forming a steel coil according to the present application; Figure 2 It is a top view of a slitting unit for slitting and forming a steel coil according to the present application; Figure 3 is along Figure 2 A schematic cross-sectional view taken along the AA direction; Figure 4 yes Figure 3 A schematic enlarged view of region B showing a rolling element; Figure 5 is along Figure 3 Schematic cross-sectional view taken along the CC direction.

[0029] Figure numerals: 1. frame; 11. lifting platform; 111. supporting platform; 1111. rotating half hole; 112. driving cylinder; 2. support plate assembly; 21. bottom plate; 22. partition; 23. side plate; 24. rolling element; 25. adjusting unit; 251. adjusting screw; 252. adjusting motor; 3. unwinding assembly; 31. unwinding roller; 32. unwinding motor; 33. limiting roller; 4. cutting assembly; 41. cutting knife roller; 5. winding assembly; 51. winding roller; 511. insert plate slot; 52. driving device; 6. steel coil; 61. strip material; 7. sensor. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 For further explanation: See also Figure 1 and Figure 2 In one embodiment, a slitting and forming slitting machine unit for slitting and forming a steel coil is used to slit a strip of a steel coil 6 into a plurality of strips 61 along its length direction. The slitting and forming slitting machine unit for slitting and forming a steel coil specifically comprises a frame 1, a support plate assembly 2, an unwinding assembly 3, a slitting assembly 4, a rewinding assembly 5, two lifting platforms 11, a sensor 7 and a controller (not shown in the figure). The unwinding assembly 3, the slitting assembly 4 and the rewinding assembly 5 are sequentially arranged along the moving direction of the strip. The unwinding assembly 3 comprises an unwinding roller 31, an unwinding motor 32, two driving rollers and two driving motors (not shown in the figure). The unwinding roller 3 The rotating shaft of 1 is rotatably connected to the bracket, the unwinding motor 32 is arranged on the bracket and is transmission-connected to the unwinding roller 31, and the two driving rollers are rotationally connected to the frame 1 at an upper and lower interval, and each driving roller is transmission-connected to a driving motor, so that the steel coil 6 can be sleeved on the unwinding roller, and the unwinding motor 32 can drive the unwinding roller to drive the steel coil 6 to rotate and convey the steel coil 6 layer by layer between the two driving rollers, so that the two driving rollers can abut the strip of the steel coil 6 up and down, and the two driving motors can drive the parts of the two driving rollers that abut the strip to rotate in a direction away from the unwinding roller.

[0031] See also Figure 3 , Figure 4 and Figure 5The support plate assembly 2 includes a bottom plate 21, two partition plates 22, two side plates 23, two adjustment units 25 and a plurality of rolling members 24. The bottom plate 21 is arranged on the frame 1. A straight plate section and an upwardly curved plate section are formed on the plate surface of the bottom plate 21. The port of the straight plate section is located near the two driving rollers and can receive the strip passing through between the two driving rollers. The cutting assembly 4 includes a cutting roller 41 and a cutting motor (not shown in the figure) for driving the cutting roller 41 to rotate. The cutting roller 41 is rotatably connected to the frame 1 and is located at the straight plate section. Directly above, two annular cutters are arranged at equal intervals on the roller surface of the cutting roller 41, and the two annular cutters can abut against the bottom plate 21 and cut the strip into three strips 61; two partitions 22 and two side plates 23 are arranged on the plate surface of the bottom plate 21 in parallel and at intervals, and the two partitions 22 are located between the two side plates 23 and divide the straight plate section between the two side plates 23 into three strip channel, and the three strip channels correspond to the three strips 61 one by one, and one end of each strip channel is located at the junction of the straight plate section and the curved plate section, and each strip channel The other end of the channel extends in the direction close to the cutting roller 41; the adjusting units 25 correspond to the partitions 22 one by one, each adjusting unit 25 includes an adjusting screw 251 and an adjusting motor 252, a slide groove is provided on the plate surface of the bottom plate 21 along the width direction of the straight plate section, the adjusting screw 251 is arranged in the slide groove along the length direction of the slide groove and is rotatably connected to the groove wall of the slide groove, a sliding protrusion is provided at the bottom of the partition 22, the sliding protrusion is inserted into the slide groove and abuts against the side wall of the slide groove, and a screw hole is provided on the sliding protrusion and is sleeved through the screw hole. On the adjusting screw 251, the output shaft of the adjusting motor 252 is connected to the adjusting screw 251 and can drive the adjusting screw 251 to rotate, so that the user can drive the two partitions 22 to move back and forth between the two side plates 23 through the adjusting unit 25, and then adjust the width of the three strip channel so that these strip channels can accommodate strips 61 of different widths; the rolling element 24 can be a needle roller, and a plurality of needle rollers are connected to the bent plate section in a rotational manner parallel to each other, and the length direction of each needle roller is arranged along the width direction of the bottom plate 21.

[0032] See also Figure 3 , Figure 4 and Figure 5 , a limiting protrusion is provided on the inner side wall of each strip plate channel, and the limiting protrusion can abut against the top of the strip material 61, so that each strip material 61 can move along its own strip plate channel toward the bent plate section, and bend upward along the bent plate section and automatically insert into the plug-in plate groove 511 and connect with the winding roller 51, and the limiting protrusion on the inner side wall of each strip plate channel can abut against the top of the strip material 61 in the strip plate channel and limit the strip material 61, so that when the end of the strip material 61 is inserted into the plug-in plate groove 511, the part of the strip material 61 located in the strip plate channel is not easily bent due to the reaction force.

[0033] See also Figure 3 , Figure 4 and Figure 5 The winding assembly 5 includes a winding roller 51 and a driving device 52. A lifting platform 11 is provided at both ends of the winding roller 51. Each lifting platform 11 includes a supporting platform 111 and a driving cylinder 112. A rotating half hole 1111 is opened on the supporting platform 111. The cross-section of the hole wall of the rotating half hole 1111 is semicircular. The rotating shaft of the winding roller 51 can be inserted into the rotating half hole 1111 and rotate in the rotating half hole 1111; the cylinder body of each driving cylinder 112 is arranged on the frame 1, and the piston rod of each driving cylinder 112 extends upward and is connected to the bottom of the supporting platform 111 and can drive the supporting platform 111 to rise and fall; the roller surface of the winding roller 51 faces the curved plate section A plug-in plate slot 511 is provided on one side of the port, and the plug-in plate slot 511 runs through the entire length direction of the winding roller 51, so that the strip material 61 can be inserted into the plug-in plate slot 511 along the bent plate section and connected to the winding roller 51. After the winding roller 51 has wound up a number of strip materials 61, the user can directly unwind the strip materials 61 from one end of the winding roller 51, thereby making it convenient for the user to unload the material from the winding roller 51; the driving device 52 is a DC motor, which is arranged on a lifting platform 11, and the output shaft of the DC motor is connected to the rotating shaft of the winding roller 51 through a coupling and can drive the side of the winding roller 51 away from the cutting roller 41 to rotate upward to wind up the strip material 61.

[0034] It should be noted that, since in the present embodiment, the plug-in slot 511 is opened on the side of the winding roller 51 facing away from the cutting plate unit, the user can first adjust the output shaft of the DC motor to an electromagnetic equilibrium state, in which the driving force exerted on the output shaft of the DC motor in the magnetic field within the DC motor is zero; then connect the output shaft to the rotating shaft of the winding roller 51, and when the end of the strip material 61 is fully inserted into the plug-in slot 511, the subsequent strip material 61 will push the side of the winding roller 51 away from the cutting roller 41 upward, and then the output shaft of the DC motor is no longer in a balanced state in the magnetic field within the DC motor, so that the DC motor can drive the side of the winding roller 51 away from the cutting roller 41 to rotate upward to wind up the strip material 61.

[0035] See also Figure 3 and Figure 5, the sensor 7 is arranged on the frame 1, and the sensor 7 can be a distance measuring sensor 7, which can detect the thickness change of the strip material 61 on the winding roller 51, and the sensor 7 is electrically connected to the controller and can send the detection result to the controller, so that the controller can control the lifting and lowering of the lifting platform 11 according to the detection result, so that when waiting for the end of the strip material 61 to be plugged into the plug-in slot 511, the controller can control the lifting platform 11 to drive the winding roller 51 to approach the bottom plate 21, so that the strip material 61 can be inserted into the plug-in slot 511 after leaving the bent plate section; after the strip material 61 and the winding roller 51 are connected, the controller can control the lifting platform 11 to drive the winding roller 51 away from the bottom plate 21, so that the bottom plate 21 will not hinder the winding roller 51 from winding up the strip material 61.

[0036] The implementation principle of the slitting unit for slitting and forming steel coils described in this application is as follows: When it is necessary to cut the steel coil 6, the user can first install the steel coil 6 on the unwinding component 3, and then start the unwinding component 3 to release the strip of the steel coil 6 along the pallet channel in the direction close to the winding roller 51. These strips will first pass under the cutting component 4 and be cut into multiple strips 61, and then these strips 61 will continue to move along the bent plate section and automatically insert into the insert plate slot 511 and connect with the winding roller 51. Then the user can start the driving device 52 to drive the winding roller 51 to rotate and wind these strips 61, so that the steel coil 6 can be automatically wound after cutting, without the need for the user to manually connect the cut steel strip of the steel coil 6 to the winding roller 51, so that the longitudinal shearing unit for longitudinally shearing and forming the steel coil has good shearing efficiency for the steel coil 6.

[0037] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A slitting unit for slitting and forming a steel coil, used for cutting a strip of a steel coil (6) into a plurality of strips (61) along its length direction, characterized in that: It comprises a frame (1), a support plate assembly (2), an unwinding assembly (3), a slitting assembly (4) and a winding assembly (5), wherein a support plate channel is formed on the support plate assembly (2), and the support plate channel comprises a straight plate section and a curved plate section; The unwinding assembly (3) is arranged at the end of the straight plate section, and the unwinding assembly (3) is capable of storing the steel coil (6) and driving the strip of the steel coil (6) to move along the support plate channel; The cutting assembly (4) is arranged above the straight plate section and is capable of cutting the strip material passing through below the cutting assembly (4) into a plurality of strip materials (61); The winding assembly (5) comprises a winding roller (51) and a driving device (52), wherein the winding roller (51) is rotatably connected to the frame (1), and a plate insertion groove (511) is provided on a roller surface of the winding roller (51) facing the bent plate section, wherein the strip material (61) can be inserted into the plate insertion groove (511) along the bent plate section and connected to the winding roller (51), and the driving device (52) is transmission-connected to the winding roller (51) and can drive the winding roller (51) to rotate so as to wind up the strip material (61).

2. The slitting unit for slitting and forming steel coils according to claim 1, characterized in that: The support plate assembly (2) comprises a bottom plate (21), at least one partition plate (22) and two side plates (23); the winding roller (51) is arranged above the bottom plate (21); one end of the bottom plate (21) extends in a direction close to the winding roller (51) and forms a bottom wall of the curved plate section; the other end of the bottom plate (21) extends in a direction close to the unwinding assembly (3) and forms a bottom wall of the straight plate section; The partition plate (22) and the two side plates (23) are arranged in parallel and at intervals on the plate surface of the bottom plate (21), and the partition plate (22) is located between the two side plates (23) and divides the straight plate section between the two side plates (23) into a plurality of strip plate channels, the strip plate channels corresponding to the strip materials (61) one by one, one end of each strip plate channel is located at the junction of the straight plate section and the bent plate section, the other end of each strip plate channel extends in a direction close to the cutting assembly (4), and a limiting protrusion is provided on the inner side wall of each strip plate channel, and the limiting protrusion can abut against the top of the strip material (61).

3. The slitting unit for slitting and forming steel coils according to claim 2, characterized in that: The support plate assembly (2) further comprises a plurality of rolling elements (24), each of the rolling elements (24) being rotatably connected to the bottom wall of the bent plate section, and each of the rolling elements (24) being capable of abutting against the bottom of the strip material (61).

4. The slitting unit for slitting and forming steel coils according to claim 2, characterized in that: The support plate assembly (2) further comprises an adjusting unit (25), the partition plate (22) is slidably connected to the bottom plate (21), and the adjusting unit (25) is transmission-connected to the partition plate (22) and is capable of driving the partition plate (22) to move back and forth between the two side plates (23).

5. The slitting unit for slitting and forming steel coils according to claim 4, characterized in that: The adjusting unit (25) comprises an adjusting screw (251) and an adjusting motor (252); a slide groove is provided on the plate surface of the bottom plate (21) along the width direction of the straight plate section; the adjusting screw (251) is arranged in the slide groove along the length direction of the slide groove and is rotatably connected to the groove wall of the slide groove; a sliding protrusion is provided at the bottom of the partition plate (22); the sliding protrusion is inserted into the slide groove and abuts against the side wall of the slide groove; a screw hole is provided on the sliding protrusion and is sleeved on the adjusting screw (251) through the screw hole; The adjusting motor (252) is drivingly connected to the adjusting screw (251) and is capable of driving the adjusting screw (251) to rotate.

6. The slitting unit for slitting and forming steel coils according to claim 4, characterized in that: The frame (1) comprises a lifting platform (11), wherein the lifting platform (11) is connected to the winding roller (51) and is capable of driving the winding roller (51) to move closer to or away from the bottom plate (21).

7. The slitting unit for slitting and forming steel coils according to claim 6, characterized in that: It also includes a sensor (7) and a controller, wherein the sensor (7) is arranged on the frame (1) and is capable of detecting the thickness of the strip material (61) on the winding roller (51), and the sensor (7) is electrically connected to the controller and is capable of sending the detection result to the controller, and the controller is capable of controlling the lifting and lowering of the lifting platform (11) according to the detection result.

8. The slitting unit for slitting and forming steel coils according to claim 6, characterized in that: The lifting platform (11) comprises a supporting platform (111) and a driving cylinder (112); a rotating half hole (1111) is provided on the supporting platform (111); a rotating shaft of the winding roller (51) is inserted into the rotating half hole (1111) and can rotate in the rotating half hole (1111); The piston rod of the driving cylinder (112) is connected to the bottom of the supporting platform (111) and can drive the supporting platform (111) to rise and fall.

9. The slitting unit for slitting and forming steel coils according to claim 8, characterized in that: The driving device (52) is a DC motor, which is arranged on the lifting platform (11), and the output shaft of the DC motor is connected to the rotating shaft of the winding roller (51).

10. The slitting unit for slitting and forming steel coils according to claim 1, characterized in that: The insert plate groove (511) runs through the entire length direction of the winding roller (51).

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