PET film slitting device

Abstract

The utility model provides a PET film slitting device which comprises a machine frame and further comprises an unwinding assembly, a guide assembly, a slitting assembly, a waste recycling assembly, a winding assembly, a clamping assembly 7 and a storage assembly, and the unwinding assembly can load and unwind a first film roll; the guide assembly can pull and tension the film roll; the slitting assembly can be used for slitting the passing film roll I to form a film roll II, a film roll III and a waste material; the waste recovery assembly can recover waste cut by the slitting assembly on the two sides of the first film roll. The winding assembly can load and wind the second film roll and the third film roll. The clamping assembly can clamp and limit one side of the winding assembly. The storage assembly can store the second film roll and the third film roll. According to the film roll slitting device, film rolls can be quickly classified and rolled while being slit, mutual interference is avoided during rolling, subsequent processing or delivery is facilitated, and the film rolls are prevented from being polluted to affect the quality of the film rolls.

Description

Technical Field

[0001] This utility model relates to the field of PET film processing technology, and in particular to a PET film slitting device. Background Technology

[0002] Patent document CN221160657U discloses a slitting device for PET film, including a frame, a mounting frame for mounting PET film rolls on one side of the frame, a receiving mechanism on the other side of the frame opposite to the mounting frame, a feeding mechanism on the frame between the mounting frame and the receiving mechanism, and a cutting mechanism on the frame for cutting PET film. The cutting mechanism includes a slitting blade for vertically cutting PET film, a cutting blade that can move up and down for horizontally cutting PET film, and a moving component on the frame that is connected to and drives the cutting blade to move up and down. During production, the slitting blade and the cutting blade work together to cut the PET film rolls into PET films of the required size, which can adapt to the production of various specifications. The overall process is simple, highly automated, and greatly reduces labor costs. At the same time, it can ensure the size of the cut PET film to ensure the cost ratio of the product. Moreover, the cut PET film can replace the original polyester film, realizing the reuse of PET film and significantly saving the company's production costs.

[0003] In the above solution, the slitting device is suitable for slitting PET film into rectangular shapes. However, the existing requirement for PET film is to slitting large rolls of PET film into two small rolls of PET film of the same specifications. Obviously, the above slitting device cannot do this. Furthermore, the disassembly and assembly of existing paper tubes and PET film rolls are relatively complicated, and the winding of PET film waste is prone to entanglement, which also needs to be optimized. Therefore, it is necessary to provide a PET film slitting device to solve the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a PET film slitting device.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A PET film slitting apparatus includes a frame and further includes:

[0007] An unwinding assembly, mounted at the rear end of the frame, is capable of loading and unwinding a film roll.

[0008] A guiding assembly, located in front of the unwinding assembly, is capable of pulling and tensioning the film roll;

[0009] The slitting assembly is installed in the middle of the frame. The slitting assembly can slit the passing membrane roll one into membrane roll two, membrane roll three and waste material.

[0010] A waste recovery assembly is located on one side of the rack, and the waste recovery assembly can recover the waste cut from both sides of the film roll one by the slitting assembly;

[0011] A winding assembly is installed at the front end of the rack, and the winding assembly can load and wind the film roll two and the film roll three;

[0012] A clamping assembly is installed on one side of the front end of the rack, and the clamping assembly clamps and limits one side of the winding assembly;

[0013] A storage assembly is movably connected with one side of the rack, and the storage assembly can store the film roll two and the film roll three.

[0014] The utility model further sets up, and the unwinding assembly includes:

[0015] The unwinding roller is movably connected with the rack at both ends;

[0016] The motor one is installed in the rack, and the output end of the motor one is connected with one end of the unwinding roller;

[0017] The film roll one is sleeved on the unwinding roller.

[0018] The utility model further sets up, and the guide assembly includes:

[0019] The guide roller one is movably connected with the rack at both ends, and the guide roller one is located obliquely above the winding assembly;

[0020] The guide roller two is movably connected with the rack at both ends, and the guide roller two is located obliquely above the guide roller one;

[0021] The guide roller three is movably connected with the rack at both ends, and the guide roller three is located obliquely above the guide roller two;

[0022] The guide roller four is movably connected with the rack at both ends, and the guide roller four is located in front of the guide roller three;

[0023] The guide roller group one is movably connected with the rack at both ends, and the guide roller group one is located obliquely below the guide roller four;

[0024] The guide roller five is movably connected with the rack at both ends, and the guide roller five is located obliquely below the guide roller group one;

[0025] The guide roller six is movably connected with the rack at both ends, and the guide roller six is located obliquely below the guide roller five;

[0026] The guide roller group two is movably connected with the rack at both ends, and the guide roller group two is located in front of the guide roller six.

[0027] The utility model further sets up, and the slitting assembly includes:

[0028] Slitting roller, both ends of the slitting roller are movably connected with the rack;

[0029] Motor two, the motor two is installed in the rack, and the output end of the motor two is connected with one end of the slitting roller;

[0030] Fixed roller, both ends of the fixed roller are fixedly connected with the rack, and the fixed roller is located above the slitting roller;

[0031] Tool unit, the tool unit is sleeved on the fixed roller, the tool unit is towards the slitting roller, and the film roll one passing through the slitting roller is slit by the tool unit.

[0032] The utility model further sets up, and the waste recovery assembly includes:

[0033] Recovery roller, both ends of the recovery roller are fixedly connected with the rack, the recovery roller is located below the slitting assembly, and the recovery roller is symmetrically provided with a notch;

[0034] Fan, the fan is arranged in the rack, the fan is connected with one end of the recovery roller, and the waste is output to the outside of the rack through the notch at the recovery roller under the action of the fan;

[0035] Waste winding unit, the waste winding unit receives the waste output by the fan and winds the waste.

[0036] The utility model further sets up, and the winding assembly includes:

[0037] Winding roller one, one end of the winding roller one is movably connected with the rack;

[0038] Motor three, the motor three is installed in the rack, and the output end of the motor three is connected with one end of the winding roller one;

[0039] Film roll two, the film roll two is sleeved on the winding roller one;

[0040] Winding roller two, one end of the winding roller two is movably connected with the rack, and the winding roller two is located below the winding roller one;

[0041] Motor four, the motor four is installed in the rack, and the output end of the motor four is connected with one end of the winding roller two;

[0042] Film roll three, the film roll three is sleeved on the winding roller two.

[0043] The utility model further sets up, and the clamping assembly includes:

[0044] Cylinder one, the cylinder one is installed on the rack;

[0045] Fixed plate, the fixed plate is connected with the output end of the cylinder one, and the fixed plate moves along with the expansion and contraction of the cylinder one;

[0046] An upper clamping block is installed on the upper end of the fixed plate, and the upper clamping block is passed through by the winding roller one;

[0047] A second air cylinder is installed on the top of the upper clamping block, and the winding roller one is limited by the second air cylinder;

[0048] A lower clamping block is installed on the lower end of the fixed plate, and the lower clamping block is passed through by the winding roller two;

[0049] A third air cylinder is installed on the top of the lower clamping block, and the winding roller two is limited by the third air cylinder.

[0050] The utility model further sets up, the storage component includes:

[0051] The connecting frame is fixedly connected with one side of the rack;

[0052] The upper connecting block is sleeved on the upper end of the connecting frame;

[0053] The upper storage roller is connected with the side surface of the upper connecting block at one end, and the other end of the upper storage roller is abutted with one end of the winding roller one;

[0054] The lower connecting block is sleeved on the lower end of the connecting frame;

[0055] The lower storage roller is connected with the side surface of the lower connecting block at one end, and the other end of the lower storage roller is abutted with one end of the winding roller two.

[0056] The utility model further sets up, the rack top is equipped with laser mark unit, and the laser mark unit is towards the slitting roller.

[0057] Summarized above, the utility model has following beneficial effect:

[0058] 1. The utility model can provide positioning for the tool unit through the laser mark unit, accurately slit film roll one to form film roll two, film roll three and waste, improve the processing precision of film roll one, and can save materials more.

[0059] 2. The utility model can slit the film roll and rapidly classify and wind at the same time, does not interfere with each other during winding, is convenient for subsequent processing or delivery, avoids that the film roll is polluted and influences the film roll quality.

[0060] 3. The utility model can avoid that the traction path of the waste in the rack is too complex to produce winding or influence the processing of the film roll by the fan to the linear conveying of the waste and conveying the waste to the outside of the rack, and the waste recovery assembly can reciprocatingly wind the waste, can wind more waste more evenly, and avoids frequent cleaning of the winding frame.

[0061] 4. The utility model discloses a clamping assembly can be more convenient to the winding roller clamping and the holding, convenient film roll two and film roll three's separation, cooperate storage assembly simultaneously can store film roll two and film roll three to film roll two and film roll three's unloading, convenient to detach storage, improve processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0062] Figure 1 It is the structure schematic drawing of the utility model.

[0063] Figure 2 It is the structure schematic drawing of the utility model clamping assembly and storage assembly link.

[0064] Figure 3 It is the structure schematic drawing of the utility model waste winding unit.

[0065] Figure 4 It is the utility model cutter unit's enlarged view.

[0066] Figure 5 It is the structure schematic drawing of the utility model recovery roller.

[0067] In the drawing, 1. frame, 2. unwinding assembly, 21. unwinding roller, 22. film roll one, 3. guide assembly, 31. guide roller one, 32. guide roller two, 33. guide roller three, 34. guide roller four, 35. guide roller group one, 36. guide roller five, 37. guide roller six, 38. guide roller group two, 4. slitting assembly, 41. slitting roller, 42. fixed roller, 43. cutter unit, 5. waste recovery assembly, 51. recovery roller, 52. fan, 53. waste winding unit, 6. winding assembly, 61 winding roller one, 62 film roll two, 63. winding roller two, 64. film roll three, 7. clamping assembly, 71. air cylinder one, 72. fixed plate, 73. upper clamping block, 74. air cylinder two, 75. lower clamping block, 76. air cylinder three, 8. storage assembly, 81. connecting frame, 82. upper connecting block, 83. upper storage roller, 84. lower connecting block, 85. lower storage roller, 9. laser marking unit. DETAILED DESCRIPTION

[0068] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0069] Embodiment 1:

[0070] In this embodiment, as shown in the drawings, Figures 1-2 The utility model discloses a PET film slitting device, including frame 1, still including unwinding subassembly 2, guide component 3, slitting subassembly 4, waste recovery subassembly 5, winding subassembly 6, clamping subassembly 7 and storage subassembly 8, the unwinding subassembly is installed at the rear end of frame, and the unwinding subassembly can load and unwind film roll one 22, the guide component is located in the front of unwinding subassembly, and the guide component can pull and tension film roll, the slitting subassembly is installed in the middle part of frame, and the slitting subassembly can cut film roll one to form film roll two 62, film roll three 64 and waste, the waste recovery subassembly is located in one side of frame, and the waste recovery subassembly can recover the waste cut down on both sides of film roll one by slitting subassembly, the winding subassembly is installed at the front end of frame, and the winding subassembly can load and wind film roll two and film roll three, the clamping subassembly is installed in one side of the front end of frame, and one side of winding subassembly is clamped and limited by the clamping subassembly, and the storage subassembly is movably connected with one side of frame, and the storage subassembly can store film roll two and film roll three.

[0071] In this embodiment, the unwinding subassembly further includes unwinding roller 21, motor one and film roll one, and both ends of the unwinding roller are movably connected with the frame, the motor one is installed in the frame, the motor one is not shown in the drawings, and the output end of the motor one is connected with one end of the unwinding roller, and the film roll one is sleeved on the unwinding roller.

[0072] In this embodiment, the film roll one is sleeved on the unwinding roller, and the unwinding roller is driven to rotate by the motor one, so as to drive the film roll one to rotate and unwind.

[0073] The embodiment is further provided that the guide assembly includes guide roller one 31, guide roller two 32, guide roller three 33, guide roller four 34, guide roller group one 35, guide roller five 36, guide roller six 37 and guide roller group two 38, both ends of the guide roller one, the guide roller two, the guide roller three, the guide roller four, the guide roller group one, the guide roller five, the guide roller six and the guide roller group two are movably connected with the rack, the guide roller one is located obliquely above the winding assembly, the guide roller two is located obliquely above the guide roller one, the guide roller three is located obliquely above the guide roller two, the guide roller four is located in front of the guide roller three, the guide roller group one is located obliquely below the guide roller four, the guide roller five is located obliquely below the guide roller group one, the guide roller six is located obliquely below the guide roller five, and the guide roller group two is located in front of the guide roller six.

[0074] In the example, the guide roller one, the guide roller two, the guide roller three, the guide roller four, the guide roller group one, the guide roller five, the guide roller six and the guide roller group two all serve to guide and tension the film roll, so as to avoid the relaxation of the film roll affecting the winding quality, the guide roller one, the guide roller two, the guide roller three, the guide roller four, the guide roller group one, the guide roller five, the guide roller six and the guide roller group two are driven to rotate by corresponding motors, the motors are not shown in the figure, and the motor-driven guide roller is a common technology which will not be described here.

[0075] The embodiment is further provided that the slitting assembly includes a slitting roller 41, a motor two, a fixed roller 42 and a cutter unit 43, both ends of the slitting roller are movably connected with the rack, the motor two is installed in the rack, an output end of the motor two is connected with one end of the slitting roller, both ends of the fixed roller are fixedly connected with the rack, the fixed roller is located above the slitting roller, the cutter unit is sleeved on the fixed roller, and the cutter unit faces the slitting roller, the film roll one passing through the slitting roller is slit by the cutter unit.

[0076] In the example, the cutter unit is provided with three groups, the three groups of cutter units are all sleeved on the slitting roller, the middle cutter unit is the same distance away from the cutter units on the left and right sides, the film roll one is slit by the three groups of slitting units to form two waste materials, a film roll two and a film roll three, the cutter unit includes a rod body, a fastener, a bolt one, a blade and a bolt two, the fastener is hinged at the top of the rod body, the bolt one passes through the fastener and the rod body to lock the cutter unit on the fixed roller, the blade is inserted at the bottom of the rod body, the bolt two passes through the rod body and the blade to lock the blade on the rod body, and the blade faces the slitting roller.

[0077] In the example, the surface of the slitting roller is uniformly distributed with fine concave and convex grooves, the material of the slitting roller is steel roller, the slitting roller is driven to rotate by the motor, and the film roll one is smoothly cut by the cooperation of the blade and the concave and convex grooves.

[0078] The waste recycling assembly in the embodiment further comprises a recycling roller 51, a fan 52 and a waste winding unit 53. The recycling roller is fixedly connected at both ends thereof to the rack and is located below the slitting assembly. The recycling roller is symmetrically provided with a cutout. The fan is arranged in the rack and is connected to one end of the recycling roller. The waste is outputted outside the rack through the cutout of the recycling roller under the action of the fan. The waste winding unit receives the waste outputted by the fan and winds the waste.

[0079] In the present example, the waste winding unit comprises a box, a winding frame, a winding motor, a support arm, a linear motor, a screw rod, a moving block and a plurality of rollers. The winding motor and the linear motor are both mounted in the box. The output end of the winding motor is connected to the winding frame. The winding motor drives the winding frame to rotate. One end of the support arm is fixedly connected to the box. The screw rod is connected at both ends thereof to the linear motor and the support arm, respectively. The moving block is sleeved on the screw rod. The screw rod is driven by the linear motor to rotate, thereby driving the moving block to move. The moving block and the support arm are provided with rollers. The box is provided with a plurality of rollers. The waste is tensioned and pulled by the plurality of rollers, thereby being wound by the winding frame. The reciprocating movement of the moving block can make the waste more evenly wound on the winding frame, thereby winding more waste.

[0080] The winding assembly in the embodiment further comprises a winding roller one 61, a motor three, a film roll two, a winding roller two 63, a motor four and a film roll three. The motor three and the motor four are not shown in the figure. One end of the winding roller one is movably connected to the rack. The motor three is mounted in the rack. The output end of the motor three is connected to one end of the winding roller one. The film roll two is sleeved on the winding roller one. One end of the winding roller two is movably connected to the rack. The winding roller two is located below the winding roller one. The motor four is mounted in the rack. The output end of the motor four is connected to one end of the winding roller two. The film roll three is sleeved on the winding roller two.

[0081] In the present example, the film roll two is sleeved on the winding roller one. The winding roller one is driven by the motor three to rotate, thereby driving the film roll two to rotate and wind. The film roll three is sleeved on the winding roller two. The winding roller two is driven by the motor four to rotate, thereby driving the film roll three to rotate and wind.

[0082] The clamping assembly in the embodiment further comprises a cylinder one 71, a fixed plate 72, an upper clamping block 73, a cylinder two 74, a lower clamping block 75 and a cylinder three 76. The cylinder one is mounted on the rack. The fixed plate is connected to the output end of the cylinder one. The fixed plate moves with the expansion and contraction of the cylinder one. The upper clamping block is mounted on the upper end of the fixed plate. The upper clamping block is penetrated by the winding roller one. The cylinder two is mounted on the top of the upper clamping block. The winding roller one is limited by the cylinder two. The lower clamping block is mounted on the lower end of the fixed plate. The lower clamping block is penetrated by the winding roller two. The cylinder three is mounted on the top of the lower clamping block. The winding roller two is limited by the cylinder three.

[0083] In the present example, when the film roll two and the film roll three are normally wound, the fixed plate is driven by the cylinder one to extend, the winding roller one end is inserted through the upper clamping block, the cylinder two output end extends to limit the winding roller one, by analogy, the winding roller two end is inserted through the lower clamping block, the cylinder three output end extends to limit the winding roller two, when the film roll two and the film roll three stop winding, the cylinder two and the cylinder three are retracted at the same time, no longer limit the winding roller one and the winding roller two, the cylinder one retraction drives the fixed plate to retract, so that the winding roller one and the winding roller two correspond to separate from the upper clamping block and the lower clamping block, facilitate the film roll two and the film roll three unloading.

[0084] In the present embodiment, further provided that the storage assembly includes a connecting frame 81, an upper connecting block 82, an upper storage roller 83, a lower connecting block 84 and a lower storage roller 85, the connecting frame is fixedly connected with the one side of the rack; the upper connecting block is sleeved on the upper end of the connecting frame; the upper storage roller is connected with the side surface of the upper connecting block at one end, and the other end of the upper storage roller abuts against the one end of the winding roller one; the lower connecting block is sleeved on the lower end of the connecting frame; the lower storage roller is connected with the side surface of the lower connecting block at one end, and the other end of the lower storage roller abuts against the one end of the winding roller two.

[0085] In the present example, when the storage assembly is used, the upper storage roller and the lower storage roller are rotated to align the winding roller one and the winding roller two respectively, and then the film roll two and the film roll three on the winding roller one and the winding roller two are translated to the upper storage roller and the lower storage roller.

[0086] In the present embodiment, further provided that the top of the rack is provided with a laser marking unit 9, the laser marking unit is prior art, the laser marking unit is directed to the slitting roller, the laser marking unit emits red rays to provide positioning for the cutter unit, so as to improve the precision of the film roll processing.

[0087] The working principle of the PET film slitting device is that the film roll one is unwound by the unwinding roller, the film roll one is pulled to the slitting roller by the plurality of guide rollers, is cut by the plurality of cutter units at the slitting roller to form the film roll two, the film roll three and two waste materials, the two waste materials are discharged to the outside of the rack under the action of the fan through the cutouts on both sides of the recovery roller, the waste material is pulled by the several rollers to be tensioned, so as to be wound by the winding frame, the reciprocating movement of the moving block can make the waste material more evenly wound on the winding frame, so as to wind more waste material, the film roll two is wound by the winding roller one, the film roll three is wound by the winding roller two, after the winding is finished, the cylinder two and the cylinder three are retracted at the same time, no longer limit the winding roller one and the winding roller two, the cylinder one retraction drives the fixed plate to retract, so that the winding roller one and the winding roller two correspond to separate from the upper clamping block and the lower clamping block, the upper storage roller and the lower storage roller are rotated, the upper storage roller and the lower storage roller are aligned with the winding roller one and the winding roller two respectively, and then the film roll two and the film roll three on the winding roller one and the winding roller two are translated to the upper storage roller and the lower storage roller.

[0088] In the description of the utility model, it is necessary to explain that when the terms of indicating the orientation or position relationship such as "upper", "lower", "inner", "outer", "left", "right" and the like appear, it should be understood as the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the utility model product when it is usually placed, or the orientation or position relationship commonly understood by the person skilled in the art, and it is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, when the terms of "first", "second" and the like appear, they are only used for distinguishing the description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is also necessary to explain that unless otherwise explicitly specified and limited, the terms of "mounting", "setting", "connecting" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A PET film slitting device, comprising a frame, characterized in that, Also includes: An unwinding assembly, mounted at the rear end of the frame, is capable of loading and unwinding a film roll. A guiding assembly, located in front of the unwinding assembly, is capable of pulling and tensioning the film roll; The slitting assembly is installed in the middle of the frame. The slitting assembly can slit the passing membrane roll one into membrane roll two, membrane roll three and waste material. The waste recycling component is located on one side of the frame and is capable of recycling the waste material cut off from both sides of the film roll by the slitting component. A winding assembly, mounted at the front end of the frame, is capable of loading and winding film roll two and film roll three; A clamping assembly is installed on one side of the front end of the frame and clamps and limits one side of the winding assembly. A storage component is movably connected to one side of the rack and is capable of storing membrane roll two and membrane roll three.

2. The PET film slitting device according to claim 1, characterized in that, The unwinding assembly includes: An unwinding roller, the two ends of which are movably connected to the frame; Motor 1 is installed inside the frame, and its output end is connected to one end of the unwinding roller. Film roll one, which is set on the unwinding roller.

3. The PET film slitting device according to claim 1, characterized in that, The guiding components include: Guide roller one, which is movably connected to the frame at both ends, is located obliquely above the winding assembly; Guide roller 2, whose two ends are movably connected to the frame, is located diagonally above guide roller 1; Guide roller three, whose two ends are movably connected to the frame, is located obliquely above guide roller two; Guide roller four, whose two ends are movably connected to the frame, is located in front of guide roller three; Guide roller assembly one, which is movably connected to the frame at both ends, is located diagonally below guide roller four; Guide roller five, whose two ends are movably connected to the frame, is located diagonally below guide roller group one; Guide roller six, whose two ends are movably connected to the frame, is located diagonally below guide roller five; Guide roller group two, which is movably connected to the frame at both ends, is located in front of guide roller six.

4. A PET film slitting device according to claim 1, characterized in that, The slitting components include: The slitting roller has its two ends movably connected to the frame. Motor 2 is installed inside the frame, and its output end is connected to one end of the slitting roller. A fixed roller, whose two ends are fixedly connected to the frame, is located above the slitting roller; The cutting tool unit is mounted on the fixed roller and faces the slitting roller. The cutting tool unit cuts the film roll that has passed through the slitting roller.

5. A PET film slitting device according to claim 1, characterized in that, The waste recycling components include: The recycling roller is fixedly connected to the frame at both ends and is located below the slitting assembly. The recycling roller has symmetrical cuts. The blower is installed inside the frame and is connected to one end of the recovery roller. Under the action of the blower, the waste material is output to the outside of the frame through the cut at the recovery roller. The waste winding unit receives the waste output by the blower and winds it up.

6. A PET film slitting device according to claim 1, characterized in that, The winding assembly includes: One take-up roller, one end of which is movably connected to the frame; Motor 3 is installed inside the frame, and its output end is connected to one end of the take-up roller 1. Film roll two, which is mounted on take-up roller one; Take-up roller 2, one end of which is movably connected to the frame, and the take-up roller 2 is located below the take-up roller 1; Motor 4 is installed inside the frame, and its output end is connected to one end of take-up roller 2. Film roll three, which is mounted on take-up roller two.

7. A PET film slitting device according to claim 6, characterized in that, The clamping components include: Cylinder 1, which is mounted on the frame; A fixed plate is connected to the output end of cylinder one, and the fixed plate moves as cylinder one extends and retracts; The upper clamping block is mounted on the upper end of the fixed plate and is passed through by the take-up roller; Cylinder 2 is installed on the top of the upper clamping block and limits the position of take-up roller 1. The lower clamping block is installed at the lower end of the fixed plate and is passed through by the second take-up roller; Cylinder 3 is installed on the top of the lower clamping block and limits the winding roller 2.

8. A PET film slitting device according to claim 6, characterized in that, Storage components include: A connecting frame, which is fixedly connected to one side of the frame; Upper connecting block, which is sleeved on the upper end of the connecting frame; The upper storage roller has one end connected to the side of the upper connecting block, and the other end of the upper storage roller abuts against the end of the take-up roller. The lower connecting block is fitted onto the lower end of the connecting frame; The lower storage roller has one end connected to the side of the lower connecting block, and the other end abutting against one end of the take-up roller.

9. A PET film slitting device according to claim 4, characterized in that, A laser marking unit is installed on the top of the frame, and the laser marking unit faces the slitting roller.

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