Double-bottom-roller slitting rewinding machine

Abstract

The utility model discloses a slitting rewinding machine with double bottom rollers, which belongs to the field of rewinding machines and comprises an unwinding mechanism, a slitting mechanism and a rewinding mechanism, and the rewinding mechanism comprises a rewinding rack, a rewinding tightening device, a winding device, a rewinding roller, a roll pressing device and a clamping device. The clamping device is arranged in the clamping grooves in the two ends of the rewinding roller in a penetrating mode through the clamping sleeves at the ends of the clamping cylinders, and rapid and stable clamping of the rewinding roller is achieved. The clamping device is in linkage with a first sliding rail and a second sliding rail on the rewinding machine frame through a first sliding block on a first fixing plate and a second sliding block on a second fixing plate on the periphery of a fixing cylinder correspondingly, and the vertical movement stability of the clamping device is higher; the relative position of the clamping cylinder and the clamping rod can be adjusted by rotating the hand wheel through the handle, so that the clamping tightness of the clamping sleeve and the rewinding roller is adjusted, and the clamping capacity of the clamping device to the rewinding roller can be readjusted when the clamping stability of the clamping device to the rewinding roller is poor.

Description

TECHNICAL FIELD

[0001] The utility model relates to rewinding machine field, concretely relates to a double bottom roll slitting rewinding machine. BACKGROUND

[0002] The rewinding machine is a special equipment for paper, mica tape and film, which is used for rewinding the paper roll produced by the paper machine, and the paper is made into finished product after rewinding. At present, AC drive has replaced DC drive in the paper machinery industry, and most paper types must be cut, slit, jointed and rewound on the paper roll core to form finished product roll with certain specifications and tightness requirements.

[0003] The utility model discloses a double bottom roll rewinding machine discloses a kind of double bottom roll rewinding machines, including rack, first slab and second slab are arranged in rack, first slab and second slab are provided with clamping device, clamping device includes connecting plate and clamping assembly, clamping assembly is slidably connected on connecting plate, connecting plate one side is provided with up-down drive assembly and transverse drive assembly, connecting plate other side is provided with a plurality of second sliding blocks, transverse drive assembly is fixedly connected with clamping assembly.Up-down drive assembly includes drive cylinder, the cylinder rod of drive cylinder is connected with connecting rod, connecting rod is inserted in connecting plate, transverse drive assembly includes transverse cylinder, the cylinder rod of transverse cylinder is connected with fixed roll, fixed roll is provided with fixed block.Clamping assembly includes clamping cylinder, fixed block is fixed on clamping cylinder, clamping cylinder end is rotatably connected with clamping head, clamping head is provided with step position.

[0004] However, the above-mentioned double bottom roll rewinding machine has the following defects:

[0005] Firstly, the clamping device drives the clamping cylinder to move left and right through the transverse drive assembly. When the transverse cylinder drives the clamping cylinder to move, the connection between the clamping head at the end of the clamping cylinder and the rewinding roller is not firm, and the moving distance of the drive cylinder needs to be adjusted again, which is relatively cumbersome and prone to sliding risk.

[0006] Secondly, the clamping mechanism on both sides of the machine body is connected to the machine body only through a single fixed plate. During repeated movement, a gap may occur between the fixed plate and the sliding block, causing the fixed plate to deviate, and thus causing the clamping cylinder to deflect when moving, reducing the clamping ability of the rewinding roller.

[0007] Therefore, it is necessary to improve the above-mentioned defects. UTILITY MODEL CONTENTS

[0008] The utility model discloses a double bottom roll slitting rewinding machine with strong clamping ability and high clamping stability for rewinding roller, to solve the above problems existing in prior art.

[0009] The utility model discloses a technical scheme that is adopted for realizing the above object: a double-bottom roll slitting and rewinding machine, which comprises unwinding mechanism, slitting mechanism and rewinding mechanism arranged in sequence, the rewinding mechanism comprises a rewinding frame, a rewinding tensioning device, a winding device, a rewinding roller, a winding device and a clamping device, the rewinding frame is respectively provided with first vertical slide rails and second vertical slide rails on both sides, the clamping device comprises a fixed cylinder, a clamping cylinder is arranged in the middle of the fixed cylinder, a clamping rod is arranged in the middle of the clamping cylinder, one end of the clamping rod is provided with a hand wheel for adjusting the relative position of the clamping rod relative to the clamping cylinder, the other end of the clamping rod is provided with a clamping sleeve for clamping the rewinding roller, a first fixed plate and a second fixed plate are arranged on the surface of the fixed cylinder, a connecting plate is arranged between the first fixed plate and the second fixed plate, a horizontal driving assembly for horizontally moving the clamping device is fixed between the first fixed plate and the second fixed plate, a vertical driving assembly for vertically moving the clamping device is arranged on the rewinding frame, a plurality of first sliding blocks linked with the first vertical slide rails are arranged on the first fixed plate, a plurality of second sliding blocks linked with the second vertical slide rails are arranged on the second fixed plate, and a handle is rotatably arranged on the hand wheel.

[0010] By adopting the above technical scheme, the material roll is placed on the unwinding mechanism, the slitting and rewinding of the material roll are realized by passing through the slitting mechanism and the rewinding mechanism, the rewinding roller can be clamped and dismounted by the clamping device, so that the material roll after slitting can be quickly rewound and collected, the clamping sleeve at the end of the clamping cylinder is arranged in the clamping groove at both ends of the rewinding roller, so that the rewinding roller can be quickly and stably clamped, the first sliding block on the first fixed plate and the second sliding block on the second fixed plate of the clamping device are respectively linked with the first slide rail and the second slide rail on the rewinding frame, the vertical movement stability of the clamping device is higher, and when the rewinding roller is clamped, the relative position of the clamping cylinder and the clamping rod can be adjusted by rotating the hand wheel through the handle, so that the clamping tightness of the clamping sleeve and the rewinding roller can be adjusted, the clamping ability of the clamping device to the rewinding roller can be adjusted when the clamping stability of the clamping device to the rewinding roller is poor, and in addition, the horizontal and lateral movement of the clamping device can be realized by the vertical driving assembly and the horizontal driving assembly on the rewinding frame, so that the material roll can be efficiently moved during rewinding.

[0011] The double-bottom roll slitting and rewinding machine can be further provided with: the horizontal driving assembly comprises a horizontal moving cylinder, a horizontal moving connecting rod and a fixed clamping block, one end of the horizontal moving connecting rod is hinged with the cylinder rod of the horizontal moving cylinder, the other end of the horizontal moving connecting rod is rotatably connected with the fixed clamping block through a fixed shaft, the fixed clamping block is provided with a fixed clamping ring, the fixed clamping block is fixed to the outer periphery of the fixed cylinder through the fixed clamping ring, the fixed clamping block is provided with a fixed mounting portion, the fixed mounting portion is provided with a plurality of mounting holes for fastening the fixed clamping ring, the vertical driving assembly comprises a vertical cylinder arranged above the rewinding frame, and the cylinder rod of the vertical cylinder is riveted with the first fixed plate.

[0012] By adopting the above technical scheme: the transverse driving assembly can realize the transverse movement of the clamping device through the cooperation of the transverse cylinder, the transverse connecting rod and the fixed clamping block. The cylinder rod of the transverse cylinder is connected with the fixed clamping block through the transverse connecting rod, and the fixed clamping block is fixed on the outer periphery of the fixed cylinder through the fixed clamping ring, so that the transverse driving assembly is closely linked with the clamping device, and the operation is convenient and stable. In addition, the vertical driving assembly can realize the vertical movement of the clamping device through the riveting of the vertical cylinder and the first fixed plate. The vertical cylinder makes the installation and disassembly of the rewinding roller more efficient. The synergistic effect of the transverse driving assembly and the vertical driving assembly further improves the movement control ability of the rewinding frame to the clamping device, so that the rewinding roller can keep stable operation during the rewinding process, and the operation process is simplified, and the rewinding efficiency and quality are improved.

[0013] The above double-bottom roll slitting and rewinding machine can be further provided with a winding device including a winding frame, winding cylinders arranged below the winding frame, and winding cylinders arranged on both sides of the rewinding frame. The end of the winding cylinder is provided with a first transmission gear, the upper part of the frame is provided with a second transmission gear, the both ends of the winding frame are provided with a transmission bracket, the rewinding frame is provided with a transmission chain linked with the first transmission gear and the second transmission gear and fixed on the transmission bracket, the winding frame is provided with a winding support plate, a plurality of winding sliding blocks linked with the first sliding rail are arranged on the winding support plate, a limiting cylinder for limiting the sliding of the winding frame is further arranged on the winding support plate, winding gears are arranged on both sides of the winding frame, and winding racks linked with the winding gears are arranged on the rewinding frame.

[0014] By adopting the above technical scheme: the pressure winding device can realize stable compression of the material during the rewinding process through the cooperation of the pressure winding cylinder, the pressure winding frame and the pressure winding roller. The first transmission gear at the end of the pressure winding cylinder is linked with the second transmission gear above the rack through a transmission chain, ensuring that the movement of the pressure winding frame is more stable and accurate. The pressure winding slide on the pressure winding support plate is linked with the first slide rail, further enhancing the sliding stability of the pressure winding device. At the same time, the limiting cylinder effectively limits the sliding range of the pressure winding frame, avoiding material roll misalignment or damage caused by excessive sliding. In combination with the pressure winding gears at both ends and the pressure winding rack, the lifting height of the pressure winding device can be accurately controlled, improving the accuracy during pressure winding. In addition, the rewinding and tightening device can dynamically and fixedly tighten the material roll through the cooperation of the first and second tightening components. The first tightening component realizes dynamic tightening of the material roll through the cooperation of the first tightening cylinder and the tightening connecting plate. The middle part of the tightening connecting plate is hinged to the rewinding rack, allowing the tightening shaft to adaptively adjust with the diameter of the material roll. At the same time, the second tightening component realizes fixed tightening of the material roll through the cooperation of the second tightening cylinder and the tightening fixed plate. The middle part of the tightening fixed plate is riveted to the rewinding rack through a fixed rod, ensuring the stability of the tightening shaft. The limiting support limits the rotation angle of the tightening fixed plate, avoiding deformation or damage of the material roll caused by excessive tightening.

[0015] The above double-bottom roll slitting and rewinding machine can be further provided with a winding device including a winding drive assembly, a first supporting bottom roll and a second supporting bottom roll. The rewinding roll is arranged between the first and second supporting bottom rolls and abuts the outer peripheral surfaces of the first and second supporting bottom rolls. The winding drive assembly includes two groups of drive motors. The drive motor transmission end is fixed with a brake disc, which is linked with a brake caliper. The drive motor transmission end is linked with a transmission box. The transmission box is provided with a first rotating shaft linked with a second rotating shaft at the end. The second rotating shaft is linked with a third rotating shaft at the end away from the first rotating shaft. The first, second and third rotating shafts are connected with a connecting seat. The connecting seat is hinged through a cross connecting shaft. The rewinding rack is further provided with a roll unloading device. The roll unloading device includes a roll unloading hopper. The roll unloading hopper is provided with roll unloading plates on both sides, which are hinged to the rewinding rack. The roll unloading hopper is further provided with roll unloading cylinders for rotating the roll unloading hopper. The rewinding rack is further provided with a control panel for controlling the movement of each device.

[0016] By adopting the above technical scheme: the winding device can realize efficient support and driving of the rewinding roller through the synergistic effect of the winding driving assembly, the first supporting bottom roller and the second supporting bottom roller. The rewinding roller is arranged between the first supporting bottom roller and the second supporting bottom roller and abuts against the outer circumferential surfaces of the two, ensuring stable operation of the material roll during rewinding; the winding driving assembly is powered by two groups of driving motors, the driving motor transmission end is fixed with a brake disc, the brake disc is linked with a brake caliper, and the brake disc can realize precise braking and driving of the rewinding roller, ensuring the stability and safety of the rewinding process. The driving motor transmission end is linked with the first rotating shaft through a transmission box, the first rotating shaft end is hinged with a second rotating shaft, the second rotating shaft end away from the first rotating shaft is hinged with a third rotating shaft, a connecting seat is arranged at the connection of the first rotating shaft, the second rotating shaft and the third rotating shaft, and the connecting seats are hinged through a cross connecting shaft. The multi-section rotating shaft can adapt to the dynamic change of the rewinding roller when rewinding material rolls of different diameters, ensuring the flexibility and stability of transmission, and the hinge of the cross connecting shaft further enhances the adaptability and reliability of the transmission system. In addition, the unloading plates on both sides of the unloading hopper of the unloading device arranged at the rear of the rewinding frame are hinged with the rewinding frame, and unloading cylinders for rotating the unloading hopper are arranged on both sides of the unloading hopper, so that the unloading hopper can be conveniently rotated, the material roll after rewinding can be conveniently unloaded, the stability and operation convenience of the unloading hopper are ensured, and the operation efficiency and running stability of the equipment are further improved through the control panel on the rewinding frame to centrally manage the operation of the unwinding mechanism, the slitting mechanism, the rewinding mechanism and each driving assembly, realize automatic and precise control, and further improve the operation efficiency and running stability of the equipment.

[0017] The above double-bottom roll slitting rewinding machine can be further provided with: the unwinding device comprises an unwinding frame, and an upper winding assembly and an unwinding tensioning assembly are arranged on the unwinding frame. The upper winding assembly comprises an upper winding plate, two facing arranged clamping assemblies are arranged on both sides of the upper winding plate, the upper winding plate is provided with upper winding rails for horizontal movement of the clamping assemblies, the clamping assembly comprises a clamping bracket, a clamping motor arranged on the clamping bracket, a plurality of clamping sliding blocks arranged at the bottom of the clamping bracket and an inflation shaft for fixing the material roll, and a fixed support plate is arranged in the middle of the upper winding plate. The fixed support plate is provided with a clamping cylinder for moving the clamping assembly.

[0018] By adopting the above technical scheme: the unwinding device can realize efficient fixing and stable unwinding of the material roll through the cooperation of the upper winding assembly and the unwinding tensioning assembly on the unwinding rack. The upper winding assembly includes an upper winding plate and two oppositely arranged winding clamping assemblies. The winding clamping assembly can quickly fix the material roll and provide stable unwinding tension through the cooperation of the winding clamping support, the winding clamping motor and the gas expansion shaft. At the same time, the winding clamping cylinder pushes the winding clamping slider to move transversely along the upper winding rail, thereby driving the winding clamping support to move left and right, ensuring that the gas expansion shaft can accurately align the inner hole of the material roll and realize quick installation and disassembly. The gas expansion shaft expands and contracts to fix and loosen the material roll, which is convenient and stable, and can adapt to material rolls of different diameters, further improving the versatility of the equipment. In addition, the unwinding tensioning assembly is linked with the upper winding assembly through the tension adjusting device, which can automatically adjust the unwinding tension according to the diameter change of the material roll, ensuring the flatness and stability of the material during the cutting process, effectively avoiding the loosening or excessive tensioning of the material roll caused by uneven tension, thereby improving the cutting quality.

[0019] The above-mentioned double-bottom roll slitting and rewinding machine can be further provided with a fixed sliding block on the fixed support plate linked with the upper winding rail, a push cylinder linked with the bottom of the fixed support plate, hinged plates on both sides of the unwinding rack, a hinge on the upper winding plate linked with the hinged plates, and a rotating cylinder fixed on both sides of the unwinding rack for pushing the upper winding assembly to rotate.

[0020] By adopting the above technical scheme: the fixed sliding block on the fixed support plate is linked with the upper winding rail, ensuring the stability and accuracy of the winding clamping assembly during transverse movement. The push cylinder is linked with the bottom of the fixed support plate, which can provide stable pushing force and further enhance the movement control ability of the winding clamping assembly. The relative position of the winding clamping assembly and the upper winding plate can be adjusted to ensure that the gas expansion shaft can quickly and accurately align the inner hole of the material roll, realizing efficient installation and disassembly. In addition, the hinged plates on both sides of the unwinding rack are linked with the hinge on the upper winding plate, so that the upper winding plate can realize rotary motion. The rotating cylinder provides efficient and stable power source for the upper winding plate, making it easy for the operator to place the material roll on the upper winding plate or take it off after cutting is completed, simplifying the installation and disassembly process of the material roll and improving the operation convenience of the equipment.

[0021] The above-mentioned double-bottom roll slitting and rewinding machine can be further provided with an unwinding tensioning assembly including a tensioning support plate, a first tensioning roller and a second tensioning roller. The first tensioning roller is arranged on the tensioning support plate, and the second tensioning roller is arranged at the rear of the unwinding rack. The upper winding plate side is also provided with a plurality of parallel tensioning rails, and the bottom of the tensioning support plate is provided with a plurality of tensioning sliding blocks linked with the tensioning rails.

[0022] By adopting the above technical solution, several parallel tensioning slide rails set on the side of the upper winding plate, linked with the tensioning slider, enable the lateral movement of the tensioning support plate, thereby adapting to material rolls of different widths and ensuring the stability and flatness of the material roll during the slitting process. The tensioning support plate on the tensioning slider is connected to the first tensioning roller by a hinge, allowing the first tensioning roller to adaptively adjust according to changes in the diameter of the material roll, further enhancing the tensioning effect. The second tensioning roller set above the unwinding frame works in conjunction with the first tensioning roller to provide double tension to the material roll, ensuring uniform tension of the material during the slitting process and avoiding loosening or over-tensioning of the material roll due to uneven tension, thereby improving the slitting quality.

[0023] The aforementioned double-bottom-roll slitting and rewinding machine can be further configured as follows: the slitting mechanism includes a slitting frame, a slitting assembly, a slitting drive assembly, and a slitting straightening assembly. The slitting assembly includes a slitting shaft and a slitting support roller. The slitting drive assembly is linked with the slitting support roller. The slitting shaft and the slitting support roller are linked through a slitting gear. The slitting shaft is provided with a number of spaced-apart slitting slices, and the slitting support roller is provided with a number of spaced-apart slitting grooves.

[0024] By adopting the above technical solution, the slitting mechanism, through the coordinated action of the slitting frame, slitting assembly, slitting drive assembly, and slitting straightening assembly, can achieve efficient slitting of material rolls. The slitting shaft and slitting support roller in the slitting assembly are linked by slitting gears, ensuring precise matching between the slitting slices and the slitting groove, achieving uniform slitting of the material. Furthermore, the several spaced slitting slices on the slitting shaft can be adjusted according to the material width and slitting requirements, ensuring slitting accuracy and flexibility. The slitting drive assembly, linked with the slitting support roller, provides stable power support for the slitting process, ensuring that the slitting support roller and slitting shaft rotate at a uniform speed, thereby guaranteeing the continuity and uniformity of the slitting process. In addition, the slitting straightening assembly straightens the material during the slitting process, ensuring that the material remains flat during slitting and avoiding inaccurate slitting due to material looseness.

[0025] The aforementioned double-bottom-roll slitting and rewinding machine can be further configured as follows: the slitting and straightening assembly includes several slitting feed shafts disposed above the slitting assembly, several slitting discharge shafts disposed below the slitting support rollers, and a first slitting tension shaft and a second slitting tension shaft disposed on the slitting frame.

[0026] By adopting the technical scheme, the slitting and straightening assembly can ensure the flatness and stability of the material in the slitting process through the cooperation of the slitting-in material shaft, the slitting-out material shaft and the first slitting and straightening shaft and the second slitting and straightening shaft. The slitting-in material shaft is located above the slitting assembly and is responsible for guiding the material to the slitting area, ensuring the flatness of the material when entering the slitting mechanism. The slitting-out material shaft is located below the slitting support roller and is responsible for smoothly outputting the slitted material, avoiding relaxation or deformation of the material after slitting. The first slitting and straightening shaft and the second slitting and straightening shaft are arranged at the rear of the slitting rack and close to one side of the rewinding rack, and by applying appropriate tension, the material can be kept in a tight state during the slitting process, effectively avoiding inaccurate slitting caused by material relaxation, reducing the shaking and deviation of the material during the slitting process, further improving the slitting efficiency and quality of the slitting mechanism, ensuring the stability and accuracy of the slitting process, and providing high-quality slitting materials for the subsequent rewinding process.

[0027] The double-bottom roll slitting and rewinding machine can be further provided with a slitting and blowing assembly, which includes a blowing fixed plate, a plurality of blowing cylinders are arranged on the blowing fixed plate, a blocking plate is arranged on the side of the blowing fixed plate away from the blowing cylinders, blocking air cylinders are arranged on both sides of the blocking plate, and an adjusting window is formed in the middle of the blocking plate for adjusting the relative position of the blowing cylinders and the blocking plate.

[0028] By adopting the technical scheme, the slitting and blowing assembly can blow away the waste and dust generated during the slitting process, effectively improving the accuracy and material cleanliness of the slitting process. The plurality of interval blowing cylinders arranged on the blowing fixed plate can uniformly blow air flow to the slitting area, ensuring that the material remains flat during the slitting process and timely removing the debris generated during the slitting process to avoid the debris adhering to the material surface affecting the slitting quality. The blocking plate can be adjusted horizontally according to the width of the material and the slitting requirement through the pushing of the blocking air cylinders, ensuring that the material does not deviate during the slitting process, further improving the accuracy of the slitting. In addition, the adjusting window in the middle of the blocking plate allows the operator to manually adjust the relative position of the blowing cylinders and the blocking plate to adapt to different specifications of the material roll, enhancing the flexibility and adaptability of the equipment.

[0029] The utility model discloses the beneficial effect is:

[0030] First, the slitting and rewinding machine effectively improves the unloading efficiency of the material roll after slitting and the installation efficiency of the rewinding roller by combining the detachable rewinding roller on the rewinding machine frame and the clamping device for efficiently and stably clamping the rewinding roller. The clamping device can directly clamp the rewinding roller through the transverse driving assembly in the general state, and can realize the lifting operation of the rewinding roller through the vertical driving assembly during rewinding. When the clamping of the rewinding roller by the transverse driving assembly is loose, the handle can be held to drive the hand wheel to rotate and adjust the relative position of the clamping rod and the clamping cylinder, thereby adjusting the distance between the two clamping sleeves and realizing the adjustment of the clamping tightness of the rewinding roller. Compared with the way of moving the clamping assembly transversely by a transverse cylinder, the clamping stability and portability of the rewinding roller are higher. In addition, the pressure device is arranged above the rewinding roller, which can press out the excess air in the material roll during rewinding, and improve the tightness of the material roll.

[0031] Second, the unwinding mechanism realizes quick installation and disassembly of the material roll through the relative movement of the clamping assembly of the winding assembly. When the material roll is placed, the rotary cylinder pushes the winding plate to rotate to make the clamping assembly perpendicular to the horizontal plane and push the two clamping assemblies to the two sides of the winding plate. Then the clamping assembly penetrates the air expansion shaft through the inner hole of the material roll to realize efficient installation of the material roll. Then the rotary cylinder rotates the winding plate to the specified position again, and the material film to be slit is sent to the slitting mechanism through the first tensioning roller and the second tensioning roller. In addition, the first tensioning roller adapts to different widths of the material roll through the tensioning sliding block and the tensioning support plate, ensuring the flatness and stability of the unwinding process.

[0032] Third, the slitting mechanism realizes high-precision slitting and cleaning of the material roll through the synergistic effect of the slitting assembly, the slitting driving assembly, the slitting straightening assembly and the slitting blowing assembly. The slitting shaft and the slitting support roller in the slitting assembly are linked through the slitting gear to ensure the precise cooperation of the slitting piece and the slitting groove, and realize uniform slitting. The slitting driving assembly provides stable power through the multi-section rotary shaft design to adapt to the dynamic changes of the material roll and ensure the continuity and uniformity of the slitting process. The slitting straightening assembly ensures that the material remains flat and tight during the slitting process through the synergistic effect of the slitting inlet shaft, the slitting outlet shaft and the tensioning shaft, avoiding inaccurate slitting caused by relaxation. The slitting blowing assembly removes slitting debris through uniform airflow to keep the slitting area clean. At the same time, the material blocking plate adjusts the window and the material blocking cylinder to adapt to different specifications of the material roll to ensure the accuracy and flexibility of the slitting process.

[0033] The utility model will be further explained in detail in connection with the drawings and examples. DRAWINGS

[0034] Figure 1 It is the whole schematic view of the double-bottom roller slitting and rewinding machine of the utility model;

[0035] Figure 2 It is the split schematic view of the double bottom roll slitting and rewinding machine of the utility model;

[0036] Figure 3 It is the overall structure schematic view of the rewinding mechanism of the utility model;

[0037] Figure 4 It is the split schematic view of the rewinding mechanism of the utility model;

[0038] Figure 5 It is the split schematic view of the clamping device of the utility model;

[0039] Figure 6 It is the split schematic view of the volume pressing device of the utility model;

[0040] Figure 7 It is the overall structure schematic view of the unwinding mechanism of the utility model;

[0041] Figure 8 It is the split schematic view of the unwinding mechanism of the utility model;

[0042] Figure 9 It is the split schematic view of the volume clamping assembly of the utility model;

[0043] Figure 10 It is the overall schematic view of the slitting mechanism of the utility model;

[0044] Figure 11 It is the split schematic view of the slitting mechanism of the utility model;

[0045] Label annotation: unwinding mechanism 1, unwinding frame 11, hinged plate 111, hinge 112, upper volume assembly 12, upper volume plate 121, taut slide rail 1211, volume clamping assembly 122, volume clamping support 1221, volume clamping motor 1222, gas expansion shaft 1223, fixed support plate 1224, volume clamping cylinder 1225, fixed slide block 1226, push cylinder 1227, volume clamping slide block 1228, upper volume slide rail 123, rotary cylinder 124, unwinding taut assembly 13, taut support plate 131, first taut roller 132, second taut roller 133, taut slide block 134;

[0046] Slitting mechanism 2, slitting frame 21, slitting assembly 22, slitting shaft 221, slitting support roller 222, slitting gear 223, slitting piece 224, slitting groove 225, slitting drive assembly 23, slitting straightening assembly 24, slitting inlet shaft 241, slitting outlet shaft 242, first slitting taut shaft 243, second slitting taut shaft 244, slitting blowing assembly 25, blowing fixed plate 251, blowing cylinder 252, blocking plate 253, blocking cylinder 254, adjustment window 255;

[0047] Rewinding mechanism 3, rewinding frame 31, first vertical slide rail 311, second vertical slide rail 312, rewinding tensioning device 32, first tensioning assembly 321, first tensioning cylinder 3211, tensioning connecting plate 3212, first tensioning shaft 3213, second tensioning assembly 322, second tensioning cylinder 3221, tensioning fixed plate 3222, second tensioning shaft 3223, fixed rod 3224, limiting support 3225, winding device 33, winding drive assembly 331, drive motor 3311, brake disc 3312, brake caliper 3313, transmission box 3314, first rotating shaft 3315, second rotating shaft 3316, third rotating shaft 3317, connecting seat 3318, cross connecting shaft 3319, first support bottom roller 332, second support bottom roller 333, rewinding roller 34, winding pressing device 35, winding pressing frame 351, transmission support 3511, winding pressing support plate 3512, winding pressing slide block 3513, limiting cylinder 3514, winding pressing gear 3515, winding pressing rack 3516, winding pressing cylinder 352, winding pressing roller 353, first transmission gear 354, second transmission gear 355, clamping device 36, fixed cylinder 361, first fixed plate 3611, second fixed plate 3612, connecting plate 3613, first slide block 3614, second slide block 3615, clamping cylinder 362, clamping rod 363, hand wheel 3631, clamping sleeve 3632, handle 3633, transverse drive assembly 364, transverse moving cylinder 3641, transverse moving connecting rod 3642, fixed clamping block 3643, fixed clamping ring 3644, fixed mounting portion 3645, mounting hole 3646, vertical drive assembly 365, vertical cylinder 3651, unwinding device 37, unwinding hopper 371, unwinding plate 372, unwinding cylinder 373, control panel 38. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0049] As Figures 1 to 11The double bottom roll slitting and rewinding machine shown includes a winding-off mechanism 1, a slitting mechanism 2 and a rewinding mechanism 3 arranged in sequence, the rewinding mechanism 3 includes a rewinding frame 31, a rewinding tensioning device 32, a winding device 33, a rewinding roller 34, a winding pressing device 35 and a clamping device 36, the rewinding frame 31 is respectively provided with a first vertical slide rail 311 and a second vertical slide rail 312 at both sides, the clamping device 36 includes a fixed cylinder 361, a clamping cylinder 362 is arranged in the middle of the fixed cylinder 361, a clamping rod 363 is arranged in the middle of the clamping cylinder 362, one end of the clamping rod 363 is provided with a hand wheel 3631 for adjusting the relative position of the clamping rod 363 relative to the clamping cylinder 362, the other end of the clamping rod 363 is provided with a clamping sleeve 3632 for clamping the rewinding roller 34, a first fixed plate 3611 and a second fixed plate 3612 are arranged on the surface of the fixed cylinder 361, a connecting plate 3613 is arranged between the first fixed plate 3611 and the second fixed plate 3612, a horizontal driving assembly 364 for horizontally moving the clamping device 36 is fixed between the first fixed plate 3611 and the second fixed plate 3612, a vertical driving assembly 365 for vertically moving the clamping device 36 is arranged on the rewinding frame 31, a plurality of first sliding blocks 3614 linked with the first vertical slide rail 311 are arranged on the first fixed plate 3611, a plurality of second sliding blocks 3615 linked with the second vertical slide rail 312 are arranged on the second fixed plate 3612, and a handle 3633 is rotatably arranged on the hand wheel 3631. The material roll is placed on the winding-off mechanism 1, and the slitting and rewinding of the material roll are realized by passing through the slitting mechanism 2 and the rewinding mechanism 3, the rewinding roller 34 is clamped and disassembled by the clamping device 36 to realize quick rewinding and material collection of the slitted material roll, the clamping sleeve 3632 at the end of the clamping cylinder 362 is arranged in the clamping groove at both ends of the rewinding roller 34 to realize quick and stable clamping of the rewinding roller 34, the first sliding block 3614 on the first fixed plate 3611 and the second sliding block 3615 on the second fixed plate 3612 of the fixed cylinder 361 are respectively linked with the first slide rail and the second slide rail on the rewinding frame 31, the vertical movement stability of the clamping device 36 is higher, and when the rewinding roller 34 is clamped, the relative position of the clamping cylinder 362 and the clamping rod 363 can be adjusted by rotating the hand wheel 3631 through the handle 3633, so that the clamping tightness of the clamping sleeve 3632 and the rewinding roller 34 is adjusted, the clamping ability of the clamping device 36 to the rewinding roller 34 can be adjusted again when the clamping stability of the clamping device 36 to the rewinding roller 34 is poor, and in addition, the vertical driving assembly 365 and the horizontal driving assembly 364 on the rewinding frame 31 can move the clamping device 36 horizontally and transversely, and the material roll can be moved efficiently during rewinding.

[0050] The transverse driving assembly 364 comprises a transverse moving cylinder 3641, a transverse moving connecting rod 3642 and a fixed clamping block 3643. One end of the transverse moving connecting rod 3642 is hinged to a cylinder rod of the transverse moving cylinder 3641, and the other end is rotationally connected to the fixed clamping block 3643 through a fixed shaft. The fixed clamping block 3643 is provided with a fixed clamping ring 3644. The fixed clamping block 3643 is fixed to the outer periphery of the fixed cylinder 361 through the fixed clamping ring 3644. The fixed clamping block 3643 is provided with a fixed mounting portion 3645. The fixed mounting portion 3645 is provided with a plurality of mounting holes 3646 for fastening the fixed clamping ring 3644. The vertical driving assembly 365 comprises a vertical cylinder 3651 arranged above the rewinding machine frame 31. The cylinder rod of the vertical cylinder 3651 is riveted to the first fixed plate 3611. The transverse driving assembly 364 can realize the transverse movement of the clamping device 36 through the cooperation of the transverse moving cylinder 3641, the transverse moving connecting rod 3642 and the fixed clamping block 3643. The cylinder rod of the transverse moving cylinder 3641 is connected to the fixed clamping block 3643 through the transverse moving connecting rod 3642. The fixed clamping block 3643 is fixed to the outer periphery of the fixed cylinder 361 through the fixed clamping ring 3644, so that the transverse driving assembly 364 is closely linked with the clamping device 36, which is convenient to operate and has high stability. In addition, the vertical driving assembly 365 can realize the vertical movement of the clamping device 36 through the riveting of the vertical cylinder 3651 to the first fixed plate 3611. The vertical cylinder 3651 makes the installation and disassembly of the rewinding roller 34 more efficient. The cooperation of the transverse driving assembly 364 and the vertical driving assembly 365 further improves the movement control ability of the rewinding machine frame 31 to the clamping device 36, so that the rewinding roller 34 can keep stable operation during the rewinding process, while simplifying the operation process and improving the rewinding efficiency and quality.

[0051] The pressing device 35 comprises a pressing frame 351, pressing cylinders 352 arranged on both sides of the rewinding frame 31, a pressing roller 353 arranged below the pressing frame 351, a first transmission gear 354 arranged at the end of the pressing cylinder 352, a second transmission gear 355 arranged above the frame, transmission supports 3511 arranged at both ends of the pressing frame 351, and a transmission chain arranged on the rewinding frame 31 and connected with the first transmission gear 354 and the second transmission gear 355 and fixed on the transmission supports 3511. The pressing frame 351 is provided with a pressing support plate 3512, and a plurality of pressing sliding blocks 3513 connected with the first sliding rail are arranged on the pressing support plate 3512. A limiting cylinder 3514 is further arranged on the pressing support plate 3512 for limiting the sliding of the pressing frame 351. Pressing gears 3515 are arranged on both sides of the pressing frame 351, and a pressing rack 3516 connected with the pressing gears 3515 is arranged on the rewinding frame 31. The pressing device 35 can realize stable pressing of the material during the rewinding process through the cooperation of the pressing cylinder 352, the pressing frame 351 and the pressing roller 353. The first transmission gear 354 at the end of the pressing cylinder 352 is connected with the second transmission gear 355 above the frame through the transmission chain, which ensures that the movement of the pressing frame 351 is more stable and accurate. The pressing sliding blocks 3513 on the pressing support plate 3512 are connected with the first sliding rail, which further enhances the sliding stability of the pressing device 35. At the same time, the limiting cylinder 3514 effectively limits the sliding range of the pressing frame 351, avoiding the dislocation or damage of the material caused by excessive sliding. In combination with the pressing gears 3515 and the pressing rack 3516 at both ends, the lifting height of the pressing device 31 can be accurately controlled, and the accuracy during pressing is improved.

[0052] The rewinding and tightening device 32 comprises a first tightening assembly 321 and a second tightening assembly 322. The first tightening assembly 321 comprises first tightening cylinders 3211 arranged on both sides of the rewinding frame 31. The first tightening cylinders 3211 are connected with tightening connecting plates 3212. The first tightening shafts 3213 are arranged between the tightening connecting plates 3212. The middle portions of the tightening connecting plates 3212 are hinged to the rewinding frame 31. The second tightening assembly 322 comprises second tightening cylinders 3221 arranged on both sides of the rewinding frame 31. The second tightening cylinders 3221 are connected with tightening fixed plates 3222. The second tightening shafts 3223 are arranged between the tightening fixed plates 3222. The middle portions of the tightening fixed plates 3222 are provided with fixed rods 3224 which are riveted to the rewinding frame 31. The rewinding frame 31 is provided with limiting supports 3225 for limiting the rotation angle of the tightening fixed plates 3222. The rewinding and tightening device 32 can dynamically and fixedly tighten the material roll through the cooperation of the first tightening assembly 321 and the second tightening assembly 322. The first tightening assembly 321 can dynamically tighten the material roll through the cooperation of the first tightening cylinders 3211 and the tightening connecting plates 3212. The middle portions of the tightening connecting plates 3212 are hinged to the rewinding frame 31, so that the tightening shafts can be adaptively adjusted according to the diameter of the material roll. Meanwhile, the second tightening assembly 322 can fixedly tighten the material roll through the cooperation of the second tightening cylinders 3221 and the tightening fixed plates 3222. The middle portions of the tightening fixed plates 3222 are riveted to the rewinding frame 31 through the fixed rods 3224, so as to ensure the stability of the tightening shafts. The limiting supports 3225 limit the rotation angle of the tightening fixed plates 3222, so as to avoid the deformation or damage of the material roll caused by excessive tightening.

[0053] The winding device 33 comprises a winding drive assembly 331, a first supporting bottom roller 332 and a second supporting bottom roller 333, the rewinding roller is arranged between the first supporting bottom roller 332 and the second supporting bottom roller 333 and abuts the outer circumferential surface of the first supporting bottom roller 332 and the second supporting bottom roller 333, the winding drive assembly 331 comprises two groups of driving motors 3311, the driving motor 3311 is fixed with a brake disc 3312 at the transmission end, the brake disc 3312 is linked with a brake caliper 3313, the driving motor 3311 is linked with a transmission box 3314 at the transmission end, the transmission box 3314 is provided with a first rotating shaft 3315 linked with a second rotating shaft 3316 hinged at the end of the first rotating shaft 3315, a third rotating shaft 3317 hinged at the end of the second rotating shaft 3316 away from the first rotating shaft 3315, and a connecting seat 3318 arranged at the connection of the first rotating shaft 3315, the second rotating shaft 3316 and the third rotating shaft 3317, and the connecting seat 3318 is hinged through a cross connecting shaft 3319; the rewinding frame 31 is further provided with an unwinding device 37 behind, the unwinding device 37 comprises an unwinding hopper 371, the unwinding hopper 371 is provided with unwinding plates 372 on both sides, the unwinding plates 372 are hinged with the rewinding frame 31, the unwinding hopper 371 is further provided with unwinding cylinders 373 on both sides for rotating the unwinding hopper 371, and the rewinding frame 31 is further provided with a control panel 38 for controlling the movement of each device. The winding device 33 can realize efficient support and drive of the rewinding roller 34 through the cooperation of the winding drive assembly 331, the first supporting bottom roller 332 and the second supporting bottom roller 333. The rewinding roller 34 is arranged between the first supporting bottom roller 332 and the second supporting bottom roller 333 and abuts the outer circumferential surface of the two, ensuring the stable operation of the material roll during rewinding; the winding drive assembly 331 provides power through two groups of driving motors 3311, the driving motor 3311 is fixed with a brake disc 3312 at the transmission end, the brake disc 3312 is linked with a brake caliper 3313, which can realize accurate braking and driving of the rewinding roller 34, ensuring the stability and safety of the rewinding process. The driving motor 3311 is linked with the first rotating shaft 3315 through the transmission box 3314, the first rotating shaft 3315 is hinged with the second rotating shaft 3316 at the end, the second rotating shaft 3316 is hinged with the third rotating shaft 3317 at the end away from the first rotating shaft 3315, the connecting seat 3318 is arranged at the connection of the first rotating shaft 3315, the second rotating shaft 3316 and the third rotating shaft 3317, and the connecting seat 3318 is hinged through the cross connecting shaft 3319, the multi-section rotating shaft can adapt to the dynamic change of the rewinding roller 34 during rewinding of the material roll with different diameters, ensuring the flexibility and stability of the transmission, and the hinge of the cross connecting shaft 3319 further enhances the adaptability and reliability of the transmission system.In addition, the unloading plates 372 on both sides of the unloading hopper 371 of the unloading device 37 arranged behind the rewinding frame 31 are hinged to the rewinding frame 31, and the unloading hopper 371 is further provided with unloading cylinders 373 for rotating the unloading hopper 371, so that the unloading hopper 371 can be conveniently rotated, facilitating the unloading of the rewound material roll, while ensuring the stability and operation convenience of the unloading hopper 371. And through the control panel 38 on the rewinding frame 31, the unwinding mechanism 1, the slitting mechanism 2, the rewinding mechanism 3 and the operation of each driving assembly can be centrally managed to realize automatic and precise control, further improving the operation efficiency and operation stability of the equipment.

[0054] The unwinding device comprises an unwinding frame 11, and the unwinding frame 11 is provided with a winding-on assembly 12 and an unwinding and tensioning assembly 13. The winding-on assembly 12 comprises a winding-on plate 121, and two facing clamping assemblies 122 are arranged on both sides of the winding-on plate 121. The winding-on plate 121 is provided with winding-on rails 123 for horizontal movement of the clamping assemblies 122. Each clamping assembly 122 comprises a clamping bracket 1221, a clamping motor 1222 arranged on the clamping bracket 1221, a plurality of clamping sliding blocks 1228 arranged at the bottom of the clamping bracket 1221, and an inflatable shaft 1223 for fixing the material roll. A fixing support plate 1224 is arranged in the middle of the winding-on plate 121, and the fixing support plate 1224 is provided with a clamping cylinder 1225 for pushing the clamping assemblies 122 to move. The unwinding device can realize efficient fixing and stable unwinding of the material roll through the cooperation of the winding-on assembly 12 and the unwinding and tensioning assembly 13 on the unwinding frame 11. The winding-on assembly 12 comprises the winding-on plate 121 and the two facing clamping assemblies 122. The clamping assemblies 122 can quickly fix the material roll and provide stable unwinding tension through the cooperation of the clamping bracket 1221, the clamping motor 1222 and the inflatable shaft 1223. At the same time, the clamping assemblies 122 are pushed to move horizontally along the winding-on rails 123 by the clamping cylinder 1225, ensuring that the inflatable shaft 1223 can accurately align with the inner hole of the material roll and realize quick installation and disassembly. The inflatable shaft 1223 can be fixed and loosened by expansion and contraction, which is convenient and stable, and can adapt to material rolls of different diameters, further improving the versatility of the equipment. In addition, the unwinding and tensioning assembly 13 is linked with the winding-on assembly 12 through a tension adjusting device, which can automatically adjust the unwinding tension according to the diameter change of the material roll, ensuring the flatness and stability of the material during the slitting process, effectively avoiding the loosening or excessive tensioning of the material roll due to uneven tension, thereby improving the slitting quality.

[0055] The fixed sliding block 1226 is arranged on the fixed support plate 1224 and connected with the upper winding sliding rail 123. The push cylinder 1227 is connected with the bottom of the fixed support plate 1224. The hinged plates 111 are arranged on both sides of the unwinding rack 11. The upper winding plate 121 is fixedly connected with the hinged pieces 112 connected with the hinged plates 111. The rotating cylinders 124 for rotating the upper winding assembly 12 are fixed on both sides of the unwinding rack 11. The fixed sliding block 1226 arranged on the fixed support plate 1224 is connected with the upper winding sliding rail 123, which ensures the stability and accuracy of the clamping and winding assembly 122 during transverse movement. The push cylinder 1227 is connected with the bottom of the fixed support plate 1224, which can provide stable pushing force and further enhance the movement control ability of the clamping and winding assembly 122. The relative position of the clamping and winding assembly 122 and the upper winding plate 121 can be adjusted to ensure that the air expansion shaft 1223 can quickly and accurately align with the inner hole of the material roll, achieving efficient installation and disassembly. In addition, the hinged plates 111 on both sides of the unwinding rack 11 are connected with the hinged pieces 112 on the upper winding plate 121, so that the upper winding plate 121 can realize rotary motion. The rotating cylinders 124 provide efficient and stable power source for the upper winding plate 121, so that the operator can easily place the material roll on the upper winding plate 121 or take it off after cutting, simplifying the installation and disassembly process of the material roll and improving the operation convenience of the equipment.

[0056] The unwinding and tensioning assembly 13 comprises a tensioning support plate 131, a first tensioning roller 132 and a second tensioning roller 133. The first tensioning roller 132 is arranged on the tensioning support plate 131, and the second tensioning roller 133 is arranged at the rear of the unwinding rack 11. The side of the upper winding plate 121 is further provided with a plurality of parallel tensioning sliding rails 1211, and the bottom of the tensioning support plate 131 is provided with a plurality of tensioning sliding blocks 134 connected with the tensioning sliding rails 1211. The plurality of parallel tensioning sliding rails 1211 arranged on the side of the upper winding plate 121 are connected with the tensioning sliding blocks 134, which can realize the transverse movement of the tensioning support plate 131, so as to adapt to different widths of the material roll and ensure the stability and flatness of the material roll during cutting. The tensioning support plate 131 on the tensioning sliding block 134 is connected with the first tensioning roller 132 in a hinged manner, so that the first tensioning roller 132 can be self-adapted according to the diameter change of the material roll, further enhancing the tensioning effect. The second tensioning roller 133 arranged above the unwinding rack 11 cooperates with the first tensioning roller 132 to realize double tensioning of the material roll, ensuring the uniform tension of the material during cutting, avoiding the loosening or excessive tensioning of the material roll due to uneven tension, and thus improving the cutting quality.

[0057] The slitting mechanism 2 comprises a slitting frame 21, a slitting assembly 22, a slitting driving assembly 23 and a slitting straightening assembly 24. The slitting assembly 22 comprises a slitting shaft 221 and a slitting support roller 222. The slitting driving assembly 23 is linked with the slitting support roller 222. The slitting shaft 221 is linked with the slitting support roller 222 through a slitting gear 223. The slitting shaft 221 is provided with a plurality of slitting pieces 224 arranged at intervals. The slitting support roller 222 is provided with a plurality of slitting grooves 225 arranged at intervals. The slitting mechanism 2 can realize efficient slitting of the material roll through the cooperation of the slitting frame 21, the slitting assembly 22, the slitting driving assembly 23 and the slitting straightening assembly 24. The slitting shaft 221 and the slitting support roller 222 in the slitting assembly 22 are linked through the slitting gear 223, which ensures the precise cooperation of the slitting pieces 224 and the slitting grooves 225, realizes uniform slitting of the material, and the plurality of slitting pieces 224 arranged at intervals on the slitting shaft 221 can be adjusted according to the width of the material and the slitting requirement, which ensures the accuracy and flexibility of slitting. The slitting driving assembly 23 is linked with the slitting support roller 222, which provides stable power support for the slitting process, ensures that the slitting support roller 222 and the slitting shaft 221 can rotate at a constant speed, and thus guarantees the continuity and uniformity of the slitting process. In addition, the slitting straightening assembly 24 straightens the material during the slitting process, which ensures that the material remains flat during slitting and avoids inaccurate slitting caused by material relaxation.

[0058] The slitting straightening assembly 24 comprises a slitting feeding shaft 241 arranged above the slitting assembly 22, a slitting discharging shaft 242 arranged below the slitting support roller 222, and a first slitting tensioning shaft 243 and a second slitting tensioning shaft 244 arranged on the slitting frame 21. The slitting straightening assembly 24 can ensure the flatness and stability of the material during the slitting process through the cooperation of the slitting feeding shaft 241, the slitting discharging shaft 242 and the first slitting tensioning shaft 243 and the second slitting tensioning shaft 244. The slitting feeding shaft 241 is located above the slitting assembly 22 and is responsible for guiding the material to the slitting area, ensuring the flatness of the material when it enters the slitting mechanism 2. The slitting discharging shaft 242 is located below the slitting support roller 222 and is responsible for smoothly discharging the slitted material, avoiding relaxation or deformation of the material after slitting. The first slitting tensioning shaft 243 and the second slitting tensioning shaft 244 are arranged on the rear side of the slitting frame 21 close to the rewinding frame 31. By applying appropriate tension, the material can maintain a taut state during the slitting process, effectively avoiding inaccurate slitting caused by material relaxation, reducing the shaking and deviation of the material during the slitting process, and further improving the slitting efficiency and quality of the slitting mechanism 2, ensuring the stability and accuracy of the slitting process, and providing high-quality slitted materials for subsequent rewinding processes.

[0059] The slitting machine frame 21 is further provided with a slitting and blowing assembly 25, which comprises a blowing fixing plate 251, a plurality of blowing cylinders 252 are arranged on the blowing fixing plate 251 at intervals, a blocking plate 253 is arranged on the side of the blowing fixing plate 251 away from the blowing cylinders 252, the blocking plate 253 is provided with blocking air cylinders 254 on both sides of the slitting machine frame 21, and an adjusting window 255 for adjusting the relative position of the blowing cylinders 252 and the blocking plate 253 is formed in the middle of the blocking plate 253. The slitting and blowing assembly 25 can blow away the waste and dust generated in the slitting process, effectively improving the accuracy and material cleanliness of the slitting process. The plurality of interval blowing cylinders 252 arranged on the blowing fixing plate 251 can uniformly blow air flow to the slitting area, ensure that the material remains flat during the slitting process, and timely remove the debris generated during the slitting process, avoiding the debris adhering to the surface of the material affecting the slitting quality. The blocking plate 253 can be adjusted horizontally by the blocking air cylinders 254, according to the width of the material and the slitting demand, to ensure that the material does not deviate during the slitting process, further improving the accuracy of the slitting. In addition, the adjusting window 255 in the middle of the blocking plate 253 is designed, so that the operator can conveniently manually adjust the relative position of the blowing cylinders 252 and the blocking plate 253 to adapt to different specifications of the material roll, and the flexibility and adaptability of the equipment are enhanced.

[0060] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A double-bottom-roll slitting and rewinding machine, comprising an unwinding mechanism, a slitting mechanism, and a rewinding mechanism arranged in sequence, characterized in that: The rewinding mechanism includes a rewinding frame, a rewinding tensioning device, a winding device, a rewinding roller, a pressing device, and clamping devices symmetrically arranged on both sides of the rewinding frame. The rewinding frame is provided with a first vertical slide rail and a second vertical slide rail on both sides. The clamping device includes a fixed cylinder with a clamping cylinder passing through its center. A clamping rod is provided in the center of the clamping cylinder. One end of the clamping rod is provided with a handwheel for adjusting the relative position of the clamping rod with respect to the clamping cylinder, and the other end is provided with a clamping sleeve for clamping the rewinding roller. A first fixed plate and a second fixed plate are provided on the circumference of the fixed cylinder. A connecting plate is provided between the first fixed plate and the second fixed plate. A lateral drive assembly for laterally moving the clamping device is fixed between the first fixed plate and the second fixed plate. A vertical drive assembly for vertically moving the clamping device is provided on the rewinding frame. The first fixed plate is provided with a plurality of first sliders linked to the first vertical slide rail, and the second fixed plate is provided with a plurality of second sliders linked to the second vertical slide rail. A handle is rotatably provided on the handwheel.

2. The double-bottom-roll slitting and rewinding machine according to claim 1, characterized in that: The lateral drive assembly includes a lateral movement cylinder, a lateral movement connecting rod, and a fixed clamping block. One end of the lateral movement connecting rod is hinged to the cylinder rod of the lateral movement cylinder, and the other end is rotatably connected to the fixed clamping block via a fixed shaft. The fixed clamping block has a through-hole fixed clamping ring, and the fixed clamping block is fixed to the outer periphery of the fixed cylinder by the fixed clamping ring. The fixed clamping block has a fixed mounting part, and the fixed mounting part has several mounting holes for fastening the fixed clamping ring. The vertical drive assembly includes a vertical cylinder disposed above the rewinding machine frame, and the cylinder rod of the vertical cylinder is riveted to the first fixed plate.

3. The double-bottom-roll slitting and rewinding machine according to claim 2, characterized in that: The coiling device includes a coiling frame, coiling cylinders disposed on both sides of the rewinding frame, and a coiling roller disposed below the coiling frame. A first transmission gear is provided at the end of each coiling cylinder, and a second transmission gear is provided above the frame. Transmission supports are provided at both ends of the coiling frame. The rewinding frame is provided with a transmission chain that is linked to the first and second transmission gears and fixed to the transmission supports. The coiling frame is provided with a coiling support plate, and the coiling support plate is provided with several coiling sliders that are linked to a first slide rail. A limiting cylinder is also provided on the coiling supports to restrict the sliding of the coiling frame. Coiling gears are provided on both sides of the coiling frame, and the rewinding frame is provided with a cylinder that is linked to the coiling gears. The rewinding tensioning device includes a first tensioning assembly and a second tensioning assembly. The first tensioning assembly includes a first tensioning cylinder disposed on both sides of the rewinding frame. The first tensioning cylinder is connected to a tensioning connecting plate. A first tensioning shaft is disposed between the tensioning connecting plates. The middle part of the tensioning connecting plate is hinged to the rewinding frame. The second tensioning assembly includes a second tensioning cylinder disposed on both sides of the rewinding frame. The second tensioning cylinder is connected to a tensioning fixing plate. A second tensioning shaft is disposed between the tensioning fixing plates. A fixing rod riveted to the rewinding frame is disposed in the middle of the tensioning fixing plate. The rewinding frame is provided with a limiting bracket for limiting the rotation angle of the tensioning fixing plate.

4. The double-bottom-roll slitting and rewinding machine according to claim 3, characterized in that: The winding device includes a winding drive assembly, a first support bottom roller, and a second support bottom roller. The rewinding roller is disposed between the first and second support bottom rollers and abuts against the outer circumferential surfaces of the first and second support bottom rollers. The winding drive assembly includes two sets of drive motors. A brake disc is fixed to the transmission end of each drive motor. A brake caliper is linked to the brake disc. A transmission box is linked to the transmission end of each drive motor. A first rotating shaft is linked to the transmission box on the side away from the drive motor. A second rotating shaft is hinged to the end of the first rotating shaft. A third rotating shaft is hinged to the end of the second rotating shaft away from the first rotating shaft. A connecting seat is provided at the connection point of the first, second, and third rotating shafts. The connecting seats are hinged together by a cross-shaped connecting shaft. An unwinding device is also provided behind the rewinding frame. The unwinding device includes an unwinding hopper. Unwinding plates are provided on both sides of the unwinding hopper. The unwinding plates are hinged to the rewinding frame. Unwinding cylinders for rotating the unwinding hopper are also provided on both sides of the unwinding hopper. A control panel for controlling the movement of each device is also provided on the rewinding frame.

5. The double-bottom-roll slitting and rewinding machine according to claim 1, characterized in that: The unwinding device includes an unwinding frame, on which an upper winding assembly and an unwinding tensioning assembly are provided. The upper winding assembly includes an upper winding plate, and two opposing winding clamping assemblies are provided on both sides of the upper winding plate. The upper winding plate is provided with an upper winding slide rail for the horizontal movement of the winding clamping assembly. The winding clamping assembly includes a winding clamping bracket, a winding clamping motor provided on the winding clamping bracket, a plurality of winding clamping sliders provided at the bottom of the winding clamping bracket, and an air expansion shaft for fixing the material roll. A fixed support plate is provided in the middle of the upper winding plate, and the fixed support plate is provided with a winding clamping cylinder for pushing the winding clamping assembly to move.

6. The double-bottom-roll slitting and rewinding machine according to claim 5, characterized in that: The fixed support plate is provided with a fixed slider that is linked to the upper winding slide rail. A push cylinder is linked to the bottom of the fixed support plate. Hinges are provided on both sides of the unwinding frame. The upper winding plate is fixedly connected with a hinge that is linked to the hinges. Rotary cylinders for pushing the upper winding assembly to rotate are fixed on both sides of the unwinding frame.

7. The double-bottom-roll slitting and rewinding machine according to claim 6, characterized in that: The unwinding and tensioning assembly includes a tensioning support plate, a first tensioning roller, and a second tensioning roller. The first tensioning roller is located on the tensioning support plate, and the second tensioning roller is located at the rear of the unwinding frame. The side of the upper winding plate is also provided with several parallel tensioning slide rails, and the bottom of the tensioning support plate is provided with several tensioning sliders that are linked to the tensioning slide rails.

8. The double-bottom-roll slitting and rewinding machine according to claim 1, characterized in that: The slitting mechanism includes a slitting frame, a slitting assembly, a slitting drive assembly, and a slitting straightening assembly. The slitting assembly includes a slitting shaft and a slitting support roller. The slitting drive assembly is linked to the slitting support roller. The slitting shaft and the slitting support roller are linked through a slitting gear. The slitting shaft has a plurality of spaced-apart slitting slices. The slitting support roller has a plurality of spaced-apart slitting grooves.

9. The double-bottom-roll slitting and rewinding machine according to claim 8, characterized in that: The slitting and straightening assembly includes a slitting feed shaft disposed above the slitting assembly, a slitting discharge shaft disposed below the slitting support roller, and a first slitting and tightening shaft and a second slitting and tightening shaft disposed on the slitting frame.

10. The double-bottom-roll slitting and rewinding machine according to claim 9, characterized in that: The slitting frame is also provided with a slitting and blowing assembly. The slitting and blowing assembly includes a blowing fixing plate. The blowing fixing plate is provided with a plurality of blowing cylinders arranged at intervals. A baffle plate is provided on the side of the blowing fixing plate away from the blowing cylinders. The baffle plate is provided with baffle cylinders on both sides of the slitting frame. An adjustment window is provided in the middle of the baffle plate for adjusting the relative position of the blowing cylinders and the baffle plate.

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