Winding device for PE film production

Abstract

The invention provides a winding device for PE film production, and belongs to the technical field of PE film production, the winding device comprises a main body and a guide roller, and further comprises a moving mechanism arranged in the main body; wherein the moving mechanism comprises fixing shells fixedly connected to the two sides of the interior of the main body, the number of the fixing shells is two, lead screws and limiting rods are arranged in the two fixing shells correspondingly, and the surfaces of the lead screws and the surfaces of the limiting rods are slidably sleeved with connecting shells correspondingly; by means of operation of the cutting assembly and mutual cooperation of the driving mounting plate and the rotating shaft, a film is fixed from the two sides and prevented from moving in follow-up operation, meanwhile, the driving motor drives the connecting shell to stably move on the surface of the lead screw, and in the moving process, the winding roller and the winding core are ingeniously arranged to abut against the surface of the connecting plate, so that the winding efficiency is improved. And the roll core is in natural contact with the thin film, the manual winding step is omitted, a new round of rolling is started quickly, and the efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of PE film production technology, and specifically relates to a winding device for PE film production. Background Technology

[0002] PE film, or polyethylene film, refers to films produced using PE film. PE film has moisture-proof properties and low moisture permeability. Depending on the manufacturing method and control measures, polyethylene film (PE) can be used to produce products with different properties, such as low-density, medium-density, high-density polyethylene, and cross-linked polyethylene. After the production of PE film, it is often necessary to roll it up for storage.

[0003] A search of patent document CN118289552A reveals a winding machine for ultra-high strength composite PE film. The machine includes a housing, a winding roller rotatably mounted on one side of the housing, and a transmission device installed inside the housing to drive the winding roller to rotate. The winding roller includes a transmission column rotatably connected to the housing, and a main shaft fixedly mounted at the end of the transmission column. Multiple winding rods arranged in a circular array are located outside the main shaft. A diameter device is mounted on the main shaft to drive the winding rods to move away from each other. Equally spaced rollers are rotatably mounted in the middle of the winding rods, and rollers are fixedly mounted on the rollers. A drive tooth is mounted at one end of each roller, and a transmission tooth rotatably mounted on the winding rod meshes between two adjacent drive teeth. A synchronous rotation device is installed between the rollers at the ends of the winding rods to drive the rollers to rotate synchronously.

[0004] While the aforementioned patent documents can accommodate rollers of different sizes, the existing technology requires operators to precisely place the film end onto the core on the surface of the take-up roller. Finally, the drive system is activated, causing the take-up roller to rotate at a uniform speed to complete the film winding. However, this device has significant drawbacks in actual use. In particular, when cutting after winding, the film on the unwinding roller is in a free state due to the lack of a traction mechanism. When a new core is installed, one end of the film can only be manually wrapped around the surface of the core. This process not only consumes a lot of time and manpower but also greatly reduces the winding efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a winding device for PE film production. This device effectively solves the problem in existing technologies where operators must precisely place the film end onto the core on the surface of the winding roller before the drive system starts, causing the winding roller to rotate at a uniform speed to complete the film winding. However, this device has significant drawbacks in practical use. In particular, when cutting after winding, the film on the unwinding roller is in a free state due to the lack of a traction mechanism. When replacing with a new core, one end of the film can only be manually wrapped around the core surface, a process that not only consumes a lot of time and manpower but also greatly reduces winding efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: comprising a main body and a guide roller, and further comprising:

[0007] The moving mechanism is located inside the main body;

[0008] The moving mechanism includes two fixed shells fixedly connected to both sides of the main body. Each fixed shell has a lead screw and a limiting rod inside. Connecting shells are slidably fitted onto the surfaces of the lead screw and the limiting rod, respectively. A motor is fixedly installed at the top of each fixed shell, and the output end of the motor is fixedly connected to the lead screw. Two mounting plates are provided between the two connecting shells. A rotating shaft is rotatably connected to one side of each mounting plate. A connecting plate is fixedly installed at the bottom of the mounting plate.

[0009] As a further improvement of the present invention, it also includes: a pushing mechanism disposed inside the main body, the pushing mechanism including a take-up roller rotatably connected inside the main body, a core being fitted on the surface of the take-up roller, pneumatic rods being fixedly installed on both sides inside the main body, a connecting ring located on the surface of the take-up roller being fixedly installed on the output shaft of the pneumatic rods, a circular cylinder being fixedly installed on both sides inside the main body, the pneumatic rods being connected to the circular cylinders through a fixed pipe, and sealing plugs being fixedly installed on both sides of the surface of the connecting shell;

[0010] An adsorption mechanism is located inside the take-up roller;

[0011] The limiting component is located inside the take-up roller.

[0012] As a further improvement of the present invention, it also includes: a cutting assembly disposed at the top of the connecting shell, the cutting assembly including a mounting bracket fixedly connected to the top of the connecting shell, a cylinder fixedly mounted at the top of the mounting bracket, and a cutting blade fixedly mounted on the output shaft of the cylinder.

[0013] As a further improvement of the present invention, it further includes: a fixing mechanism disposed inside the connecting shell, the fixing mechanism including two square rods fixedly connected inside the connecting shell, the surface of the two square rods being slidably fitted with sliders, and the two sliders being fixedly connected to two mounting plates, the interior of each of the two sliders being hinged with two hinge rods, one end of each of the two hinge rods being hinged through a hinge block, one end of the hinge block being fixedly mounted with a moving rod, one end of the moving rod being fixedly mounted with a connecting block located outside the connecting shell, the top end of the connecting block being provided with a pressing block, and the pressing block being fixedly connected to the cutting blade, the hinge block being elastically connected to the connecting shell through an elastic element.

[0014] As a further improvement of the present invention, the adsorption mechanism includes a suction cup fixedly connected to the inside of the take-up roller. A connecting tube is fixedly installed at one end of the suction cup. A connecting tube is fitted onto the surface of one end of the connecting tube. A connecting cylinder is rotatably connected to the inside of one end of the connecting tube. A vacuum pump is provided on one side of the connecting cylinder, and the vacuum pump is fixedly installed on one side of the outer surface of the main body. A flexible hose is fixedly installed at the output end of the vacuum pump, and one end of the flexible hose is fixedly connected to the connecting cylinder.

[0015] As a further improvement of the present invention, it also includes:

[0016] A limiting component is disposed inside the main body. The limiting component includes neodymium magnets fixedly connected to both sides inside the main body. A metal block is fixedly connected to one side of the neodymium magnet to the outer wall of the connecting ring.

[0017] As a further improvement of the present invention, positioning plates located inside the core are fixedly installed on both sides of the surface of the take-up roller, and the surface of the positioning plates is in contact with the inner wall of the core.

[0018] As a further improvement of the present invention, one end of the mounting plate is designed with rounded corners, the number of the rotating shafts is four, and each pair is a group, and the rotating shafts are designed to be longitudinally symmetrical about the center of the mounting plate.

[0019] As a further improvement of the present invention, the connecting block and the extrusion block are both designed with inclined surfaces on opposite sides, and the two inclined surfaces are parallel to each other. The top hinge rod has a fixing hole, and the bottom hinge rod can rotate inside the fixing hole.

[0020] The present invention also provides a winding method for a winding device for PE film production, the winding method comprising the following steps;

[0021] S1, the operator wraps the PE film to be wound around the surface of the guide roller, so that one end passes between the two mounting plates and is then connected to the core. The operator drives the drive unit at one end of the take-up roller, which drives the take-up roller and the core to rotate, thereby winding up the film.

[0022] S2, after winding is completed, the drive cylinder pushes the output shaft to lower the cutting blade. During the descent, it contacts the film and cuts it. After cutting, the cutting blade continues to descend. The cutting blade drives the extrusion block and pushes the connecting block to move. The connecting block drives the moving rod to move. When the moving rod moves, the elastic element is stretched. The moving rod pushes the hinge block to move. The hinge block drives the two hinge rods to rotate. The two connecting plates pull the two sliders, the mounting plate, and the rotation axis to move the surface of the film, thereby fixing the film and preventing the film position from shifting when the mounting plate moves.

[0023] S3, after the film is fixed, the drive motor makes the lead screw rotate, and the connecting shell slides on the surface of the lead screw. The connecting shell will drive the mounting plate, rotating shaft, connecting plate and film to move towards another core that is not involved in the winding. During the movement, the connecting shell will drive the sealing plug into the inside of the cylinder. As the sealing plug moves, it will squeeze the air inside the cylinder into the pneumatic rod. As the gas enters, it will drive the output shaft of the pneumatic rod to push the connecting ring, core and winding roller towards the surface of the connecting plate. Then the core will abut against the connecting plate and contact the surface of the film.

[0024] S4. At the same time, the vacuum pump is driven to draw air from the inside of the connecting tube through the hose, and the connecting tube draws air from the inside of the connecting tube 2, connecting tube 1 and suction cup. Since the air vents on the surface of the suction cup are consistent with the air vents on the surface of the take-up roller and the core, the film will be adsorbed onto the surface of the core. Then the drive unit at one end of the take-up roller is driven, and the take-up roller and the core are rotated, thereby winding the film onto the surface of the core.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The present invention provides that by means of the operation of the cutting component, the drive mounting plate and the rotating shaft cooperate with each other to fix the film from both sides, preventing the film from shifting in subsequent operations. At the same time, the drive motor drives the connecting shell to move smoothly on the surface of the lead screw. During this movement process, the winding roller and the core are cleverly arranged to abut against the surface of the connecting plate, and the core and the film are allowed to come into natural contact, eliminating the manual winding step and quickly starting a new round of winding, greatly improving efficiency.

[0027] (2) The present invention utilizes the coordinated operation of the moving mechanism and the pushing mechanism. Specifically, the film is aligned with the core by moving the mounting plate and the rotating shaft, and the core is pushed to contact the film by the pneumatic rod, which facilitates the core to wind up the film. Specifically, the drive motor drives the lead screw to rotate, and the connecting shell slides on the surface of the lead screw. The connecting shell drives the mounting plate, the rotating shaft, the connecting plate and the film to move together to another core that is not involved in the winding. During the movement, the connecting shell drives the sealing plug into the inside of the cylinder, and then the air in the cylinder is squeezed into the pneumatic rod. The entry of the gas drives the output shaft of the pneumatic rod, which pushes the connecting ring, the core and the winding roller to move towards the surface of the connecting plate. Finally, the core contacts the connecting plate and makes close contact with the film, achieving fast and stable winding and greatly improving the winding efficiency.

[0028] (3) The present invention utilizes the coordinated operation of the cutting component and the fixing mechanism to drive the extrusion block by the precise movement of the cutting component, thereby causing it to extrude and push the connecting block to move. It also enables the mounting plate and the rotating shaft to securely fix the film. Specifically, after the cutting is completed, the cutting blade continues to descend. The cutting blade will drive the extrusion block and extrude and push the connecting block to move. The connecting block will drive the moving rod to move. When the moving rod moves, the elastic element will be stretched. The moving rod will push the hinge block to move. The hinge block will drive the two hinge rods to rotate. The two connecting plates will pull the two sliders, the mounting plate and the rotating shaft to move the surface of the film, thereby fixing the film and preventing the film from shifting position when the connecting shell and the mounting plate move, thus improving the accuracy of winding.

[0029] (4) Through the coordinated operation of the adsorption mechanism, the present invention can both enable the vacuum pump to extract the air inside the suction cup, so that the core can adsorb and fix the film, and enable the suction cup, connecting tube one and connecting tube two to rotate on the take-up roller without interfering with the take-up roller and the core winding operation. Specifically, the vacuum pump is driven to extract the air inside the connecting tube by the hose, and the connecting tube will extract the air inside the connecting tube two, connecting tube one and the suction cup. Since the air vent on the surface of the suction cup is consistent with the air vent on the surface of the take-up roller and the core, the film will be adsorbed onto the surface of the core, making the film winding process more stable and significantly improving the quality of film winding. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the interior of the strabismus body of the present invention;

[0032] Figure 3 This is a cross-sectional schematic diagram of the fixing shell of the present invention;

[0033] Figure 4 This is a schematic diagram illustrating the driving mechanism of the present invention;

[0034] Figure 5 This is the invention Figure 4 Enlarged diagram of point A in the diagram;

[0035] Figure 6 This is a cross-sectional view of the mounting plate of the present invention;

[0036] Figure 7 This is a cross-sectional schematic diagram of the connecting shell of the present invention;

[0037] Figure 8 This is a cross-sectional schematic diagram of the take-up roller of the present invention;

[0038] Figure 9 This is a schematic diagram illustrating the adsorption mechanism of the present invention.

[0039] In the diagram: 100, Main body; 200, Guide roller; 300, Moving mechanism; 301, Fixed shell; 302, Motor; 303, Lead screw; 304, Connecting shell; 305, Mounting plate; 306, Rotating shaft; 307, Connecting plate; 308, Limiting rod; 400, Pushing mechanism; 401, Take-up roller; 402, Core; 403, Pneumatic rod; 404, Connecting ring; 405, Fixed tube; 406, Circular cylinder; 407, Sealing plug; 500, Cutting assembly; 501, Mounting frame; 502. Cylinder; 503, Cutting blade; 600, Adsorption mechanism; 601, Suction cup; 602, Connecting pipe one; 603, Connecting pipe two; 604, Connecting cylinder; 605, Vacuum pump; 606, Hose; 700, Fixing mechanism; 701, Square rod; 702, Slider; 703, Hinge rod; 704, Hinge block; 705, Moving rod; 706, Connecting block; 707, Elastic element; 708, Extrusion block; 800, Limiting component; 801, Neodymium magnet; 802, Metal block; 900, Positioning plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", and "outer" indicate orientation or positional relationships only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0042] It should be understood that, in the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms “installation,” “connection,” and “linking” should be interpreted broadly.

[0043] Example 1: See Appendix Figures 1 to 9 The PE film production winding device provided in this embodiment 1 includes a main body 100 and a guide roller 200, and further includes:

[0044] The moving mechanism 300 is located inside the main body 100;

[0045] The moving mechanism 300 includes two fixed shells 301 fixedly connected to both sides inside the main body 100. Each fixed shell 301 is equipped with a lead screw 303 and a limiting rod 308. Connecting shells 304 are slidably fitted onto the surfaces of the lead screw 303 and the limiting rod 308, respectively. A motor 302 is fixedly installed at the top of the fixed shell 301, and the output end of the motor 302 is fixedly connected to the lead screw 303. Two mounting plates 305 are provided between the two connecting shells 304. A rotating shaft 306 is rotatably connected to the opposite side of each of the two mounting plates 305. A connecting plate 307 is fixedly installed at the bottom of the bottom mounting plate 305.

[0046] like Figure 4 As shown, it also includes: a pushing mechanism 400, which is disposed inside the main body 100. The pushing mechanism 400 includes a take-up roller 401 rotatably connected inside the main body 100. A core 402 is fitted on the surface of the take-up roller 401. Pneumatic rods 403 are fixedly installed on both sides inside the main body 100. A connecting ring 404 located on the surface of the take-up roller 401 is fixedly installed on the output shaft of the pneumatic rod 403. A cylindrical cylinder 406 is fixedly installed on both sides inside the main body 100. The pneumatic rod 403 and the cylindrical cylinder 406 are connected through a fixed tube 405. Sealing plugs 407 are fixedly installed on both sides of the surface of the connecting shell 304.

[0047] The adsorption mechanism 600 is disposed inside the take-up roller 401;

[0048] The limiting component 800 is located inside the take-up roller 401.

[0049] It is easy to understand that the operator winds the PE film to be wound onto the surface of the guide roller 200, with one end passing between the two mounting plates 305 and connecting to the core 402. Then, the drive unit at one end of the take-up roller 401 is driven, causing the take-up roller 401 and the core 402 to rotate, thereby winding the film. After winding is complete, the cutting assembly 500 is driven to cut the film. During the cutting process, the cutting assembly 500 is continuously driven to move, which in turn drives the fixing mechanism 700, causing it to drive the two... The mounting plate 305 and the rotating shaft 306 move relative to each other to fix the film. After fixing, the cut film moves downward and contacts the surface of the connecting plate 307, making it vertical. Then, the motor 302 can be driven to rotate the lead screw 303. Since the lead screw 303 is threadedly connected to the connecting shell 304, the connecting shell 304 will slide on the surface of the lead screw 303. The connecting shell 304 will drive the mounting plate 305, the rotating shaft 306, the connecting plate 307 and the film to move towards another unwound core 402.

[0050] During the movement, the connecting shell 304 drives the sealing plug 407 into the cylindrical cylinder 406. Since the cylindrical cylinder 406 and the pneumatic rod 403 are connected through the fixed tube 405, as the sealing plug 407 moves, it compresses the air inside the cylindrical cylinder 406 into the fixed tube 405. The gas then passes through the fixed tube 405 into the pneumatic rod 403. With the entry of the gas, the output shaft of the pneumatic rod 403 is driven to push the connecting ring 404, the core 402, and the take-up roller 401 toward the connecting plate 307. The surface moves, and then the core 402 abuts against the connecting plate 307 and comes into contact with the surface of the film. Then, the adsorption mechanism 600 can be driven to adsorb the film onto the surface of the core 402. Then, the drive component can be driven to rotate the winding roller 401 and the core 402, thereby winding it up. Finally, the drive motor 302 drives the mounting plate 305 to move the film. By utilizing the contact between the core 402 and the film during its movement, a new round of winding can be started quickly without the need for manual winding of the film, which greatly improves the winding efficiency.

[0051] like Figure 4 As shown, it also includes: a cutting assembly 500, which is disposed at the top of the connecting shell 304. The cutting assembly 500 includes a mounting bracket 501 fixedly connected to the top of the connecting shell 304. A cylinder 502 is fixedly mounted at the top of the mounting bracket 501. A cutting blade 503 is fixedly mounted on the output shaft of the cylinder 502.

[0052] It is easy to understand that, through the design of the cutting component 500, after the core 402 is wound up, the cylinder 502 can be driven to push the cutting blade 503 down with its output shaft. During the descent, it will come into contact with the film and cut the film.

[0053] like Figure 6 and Figure 7 As shown, it also includes: a fixing mechanism 700, which is disposed inside the connecting shell 304. The fixing mechanism 700 includes two square rods 701 fixedly connected inside the connecting shell 304. The surfaces of the two square rods 701 are slidably fitted with sliders 702, and the two sliders 702 are fixedly connected to two mounting plates 305. The interior of each slider 702 is hinged with two hinge rods 703. One end of each hinge rod 703 is hinged through a hinge block 704. One end of the hinge block 704 is fixedly installed with a moving rod 705. One end of the moving rod 705 is fixedly installed with a connecting block 706 located outside the connecting shell 304. The top of the connecting block 706 is provided with a pressing block 708, and the pressing block 708 is fixedly connected to the cutting blade 503. The hinge block 704 and the connecting shell 304 are elastically connected through an elastic member 707.

[0054] It should be noted that, through the design of the fixing mechanism 700, after the cutting blade 503 has finished cutting the film, it can continue to be driven to descend. The cutting blade 503 then moves the extrusion block 708, and the surface of the extrusion block 708 contacts the surface of the connecting block 706, squeezing and pushing the connecting block 706 to move. The connecting block 706 then moves the moving rod 705. When the moving rod 705 moves, the elastic element 707 is stretched. The moving rod 705 then pushes the hinge block 704 to move. Since the movement of the two hinge rods 703 is hinged through the hinge block 704, the moving hinge block 704 will cause the two hinge rods 703 to rotate. During the rotation of the hinge rods 703, it will pull the two sliders 702 to move on the two square rods 701 respectively. Since the sliders 702 are fixedly connected to the mounting plate 305, the two... The slider 702 moves the mounting plate 305 and the rotating shaft 306 toward the surface of the film, causing the rotating shaft 306 to contact the film and fix it in place. This prevents the film from detaching from the two mounting plates 305 when the mounting plates 305 move. When the core 402, which is not involved in winding, contacts the film, the cylinder 502 can be driven again to reset the cutting blade 503. Then, the pressing block 708 moves away from the surface of the connecting block 706, and the stretched elastic element 707 pulls the hinge block 704 to reset. The hinge block 704 drives the slider 702, mounting plate 305, and rotating shaft 306 to reset, allowing the winding operation to continue. Ultimately, by using the movement of the cutting blade 503 and the rotating shaft 306 to fix the film, the film's position is prevented from shifting when the connecting shell 304 and mounting plate 305 move, thus improving the accuracy of winding.

[0055] like Figure 8 and Figure 9 As shown, the adsorption mechanism 600 includes a suction cup 601 fixedly connected inside the take-up roller 401. A connecting tube 602 is fixedly installed at one end of the suction cup 601. A connecting tube 603 is fitted onto the surface of one end of the connecting tube 602. A connecting cylinder 604 is rotatably connected to the inside of one end of the connecting tube 603. A vacuum pump 605 is provided on one side of the connecting cylinder 604, and the vacuum pump 605 is fixedly installed on one side of the outer surface of the main body 100. A hose 606 is fixedly installed at the output end of the vacuum pump 605, and one end of the hose 606 is fixedly connected to the connecting cylinder 604.

[0056] It should be noted that, due to the design of the adsorption mechanism 600, after the unwound core 402 comes into contact with the film, the vent holes on the surface of the core 402 will also come into contact with the surface of the film. This allows the vacuum pump 605 to drive the hose 606 to extract air from the connecting tube 604. The connecting tube 604, in turn, extracts air from the connecting tube 603, connecting tube 602, and suction cup 601. Since the vent holes on the surface of the suction cup 601 are aligned with the vent holes on the surfaces of the take-up roller 401 and the core 402, the film will be drawn in. The film is attached to the surface of the core 402, and then the drive unit at one end of the take-up roller 401 can be driven to rotate the take-up roller 401 and the core 402, thereby winding the film onto the surface of the core 402. When the take-up roller 401 rotates, the suction cup 601, the first connecting tube 602 and the second connecting tube 603 will rotate together, thus not interfering with the rotation of the take-up roller 401. Finally, by driving the vacuum pump 605, the film is adsorbed onto the surface of the core 402, making the film winding process more stable and significantly improving the quality of film winding.

[0057] like Figure 1 , Figure 2 and Figure 8 As shown, it also includes:

[0058] The limiting component 800 is disposed inside the main body 100. The limiting component 800 includes neodymium magnets 801 fixedly connected to both sides inside the main body 100, and a metal block 802 fixedly connected to the outer wall of the connecting ring 404 on one side of the neodymium magnets 801.

[0059] It should be noted that, through the design of the limiting component 800, when the motor 302 drives the connecting shell 304 to reset, the sealing plug 407 will move away from the inside of the cylindrical cylinder 406. When the sealing plug 407 moves, it will draw air out of the pneumatic rod 403. Then, the output shaft of the pneumatic rod 403 will retract into the pneumatic rod 403. Then, the connecting ring 404 will pull the take-up roller 401 and the core 402 to reset. Then, the surface of the metal block 802 will come into contact with the surface of the neodymium magnet 801. The neodymium magnet 801 will then be attracted to the surface of the metal block 802, thereby fixing the take-up roller 401 and the core 402 and preventing their position from shifting when the take-up roller 401 and the core 402 are winding.

[0060] like Figure 8 and Figure 9 As shown, positioning plates 900 located inside the core 402 are fixedly installed on both sides of the surface of the take-up roller 401, and the surface of the positioning plates 900 is in contact with the inner wall of the core 402.

[0061] It is easy to understand that, through the design of the positioning plate 900, since the positioning plate 900 is set inside the core 402, the ventilation holes on the surface of the take-up roller 401 and the core 402 can be aligned. Furthermore, by limiting the core 402, the take-up roller 401 can easily drive the core 402 to rotate. Moreover, the take-up roller 401 is fixed to the fixing member with bolts, which allows the take-up roller 401 to be disassembled, making it convenient for operators to replace the core 402.

[0062] like Figure 6 As shown, one end of the mounting plate 305 has a rounded corner design, and there are four rotating shafts 306, which are arranged in pairs. The rotating shafts 306 are longitudinally symmetrical about the center of the mounting plate 305.

[0063] It is easy to understand that through the design of the mounting plate 305 and the rotating shaft 306, since one end of the mounting plate 305 is designed with rounded corners, the film will be protected during the winding process. During the winding process, the surface of the film will come into contact with the surface of one of the rotating shafts 306, and the rotating shaft 306 will rotate by friction, thereby guiding the movement of the film.

[0064] like Figure 7 As shown, the connecting block 706 and the extrusion block 708 are both designed with bevels on opposite sides, and the two bevels are parallel to each other. The top hinge rod 703 has a fixing hole, and the bottom hinge rod 703 can rotate inside the fixing hole.

[0065] It is easy to understand that through the design of the hinge rod 703, connecting block 706, and pressing block 708, since both the connecting block 706 and the pressing block 708 have inclined surfaces on opposite sides, the friction between the connecting block 706 and the pressing block 708 can be reduced, facilitating the smooth movement of the pressing block 708 by pushing the connecting block 706. Furthermore, according to the attached drawings in the instruction manual... Figure 7 The top hinge rod 703 has a fixing hole, so that when the two hinge rods 703 rotate, the bottom hinge rod 703 will rotate inside the fixing hole, so that the two hinge rods 703 do not interfere with each other.

[0066] like Figures 1 to 9 As shown, a winding method for a winding device used in PE film production includes the following steps;

[0067] S1, the operator wraps the PE film to be wound around the surface of the guide roller 200, so that one end passes between the two mounting plates 305 and is then connected to the core 402, driving the drive unit at one end of the take-up roller 401, so that the take-up roller 401 and the core 402 rotate, thereby winding up the film.

[0068] S2, after winding is completed, the drive cylinder 502 drives its output shaft to push the cutting blade 503 down. During the descent, it will contact the film and cut the film. After the cutting is completed, the drive cylinder 503 continues to descend. The cutting blade 503 will drive the extrusion block 708 and push the connecting block 706 to move. The connecting block 706 will drive the moving rod 705 to move. When the moving rod 705 moves, the elastic element 707 will be stretched. The moving rod 705 will push the hinge block 704 to move. The hinge block 704 will drive the two hinge rods 703 to rotate. The two connecting plates 307 will pull the two sliders 702, the mounting plate 305 and the rotating shaft 306 to move towards the surface of the film, thereby fixing the film and preventing the film position from shifting when the mounting plate 305 moves.

[0069] S3, after the film is fixed, the drive motor 302 causes the lead screw 303 to rotate, and the connecting shell 304 slides on the surface of the lead screw 303. The connecting shell 304 drives the mounting plate 305, the rotating shaft 306, the connecting plate 307 and the film to move towards another unwound core 402. During the movement, the connecting shell 304 drives the sealing plug 407 into the cylinder 406. As the sealing plug 407 moves, it squeezes the air inside the cylinder 406 into the pneumatic rod 403. As the gas enters, it drives the output shaft of the pneumatic rod 403 to push the connecting ring 404, the core 402 and the take-up roller 401 towards the surface of the connecting plate 307. Then the core 402 will abut against the connecting plate 307 and contact the surface of the film.

[0070] S4. At the same time, the vacuum pump 605 is driven to draw air from the inside of the connecting tube 604 through the hose 606. The connecting tube 604 draws air from the inside of the connecting tube 603, the connecting tube 602 and the suction cup 601. Since the vent holes on the surface of the suction cup 601 are consistent with the vent holes on the surface of the take-up roller 401 and the core 402, the film will be adsorbed onto the surface of the core 402. Then, the drive unit at one end of the take-up roller 401 is driven, and the take-up roller 401 and the core 402 are rotated, thereby winding the film onto the surface of the core 402.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winding device for PE film production comprising a main body (100) and a guide roller (200), characterized in that, Also includes: A moving mechanism (300) is disposed inside the main body (100); The moving mechanism (300) includes two fixed shells (301) fixedly connected to both sides inside the main body (100). Each fixed shell (301) is provided with a lead screw (303) and a limiting rod (308). The surfaces of the lead screw (303) and the limiting rod (308) are respectively slidably fitted with connecting shells (304). A motor (302) is fixedly installed at the top of the fixed shell (301), and the output end of the motor (302) is fixedly connected to the lead screw (303). Two mounting plates (305) are provided between the two connecting shells (304). A rotating shaft (306) is rotatably connected to the opposite side of each of the two mounting plates (305). A connecting plate (307) is fixedly installed at the bottom of the mounting plate (305).

2. The winding device for PE film production according to claim 1, characterized in that, Also includes: A pushing mechanism (400) is disposed inside the main body (100). The pushing mechanism (400) includes a take-up roller (401) rotatably connected inside the main body (100). A core (402) is fitted on the surface of the take-up roller (401). Pneumatic rods (403) are fixedly installed on both sides inside the main body (100). A connecting ring (404) located on the surface of the take-up roller (401) is fixedly installed on the output shaft of the pneumatic rod (403). A circular cylinder (406) is fixedly installed on both sides inside the main body (100). The pneumatic rod (403) and the circular cylinder (406) are connected through a fixed tube (405). Sealing plugs (407) are fixedly installed on both sides of the surface of the connecting shell (304). An adsorption mechanism (600) is disposed inside the take-up roller (401); A limiting component (800) is disposed inside the take-up roller (401).

3. The winding device for PE film production according to claim 1, characterized in that, Also includes: A cutting assembly (500) is disposed at the top of a connecting housing (304). The cutting assembly (500) includes a mounting bracket (501) fixedly connected to the top of the connecting housing (304). A cylinder (502) is fixedly mounted at the top of the mounting bracket (501). A cutting blade (503) is fixedly mounted on the output shaft of the cylinder (502).

4. The winding device for PE film production according to claim 1, characterized in that, Also includes: A fixing mechanism (700) is disposed inside the connecting shell (304). The fixing mechanism (700) includes two square rods (701) fixedly connected inside the connecting shell (304). Sliding blocks (702) are slidably fitted onto the surfaces of the two square rods (701), and both sliding blocks (702) are fixedly connected to two mounting plates (305). Two hinge rods (703) are hinged inside each of the two sliding blocks (702). 3) One end is hinged by a hinge block (704). A moving rod (705) is fixedly installed at one end of the hinge block (704). A connecting block (706) located outside the connecting shell (304) is fixedly installed at one end of the moving rod (705). A pressing block (708) is provided at the top of the connecting block (706), and the pressing block (708) is fixedly connected to the cutting blade (503). The hinge block (704) and the connecting shell (304) are elastically connected by an elastic element (707).

5. The winding device for PE film production according to claim 2, characterized in that, The adsorption mechanism (600) includes a suction cup (601) fixedly connected inside the take-up roller (401). A connecting tube (602) is fixedly installed at one end of the suction cup (601). A connecting tube (603) is fitted onto the surface of one end of the connecting tube (602). A connecting cylinder (604) is rotatably connected to the inside of one end of the connecting tube (603). A vacuum pump (605) is provided on one side of the connecting cylinder (604), and the vacuum pump (605) is fixedly installed on one side of the outer surface of the main body (100). A hose (606) is fixedly installed at the output end of the vacuum pump (605), and one end of the hose (606) is fixedly connected to the connecting cylinder (604).

6. The winding device for PE film production according to claim 2, characterized in that, Also includes: A limiting component (800) is disposed inside the main body (100). The limiting component (800) includes neodymium magnets (801) fixedly connected to both sides inside the main body (100). A metal block (802) is fixedly connected to one side of the neodymium magnet (801) on the outer wall of the connecting ring (404).

7. The winding device for PE film production according to claim 2, characterized in that, Positioning plates (900) located inside the core (402) are fixedly installed on both sides of the surface of the take-up roller (401), and the surface of the positioning plate (900) is in contact with the inner wall of the core (402).

8. The winding device for PE film production according to claim 1, characterized in that, One end of the mounting plate (305) is designed with rounded corners. There are four rotating shafts (306), and they are arranged in pairs. The rotating shafts (306) are longitudinally symmetrical about the center of the mounting plate (305).

9. The winding device for PE film production according to claim 4, characterized in that, The connecting block (706) and the extrusion block (708) are both designed with inclined surfaces on opposite sides, and the two inclined surfaces are parallel to each other. The top hinge rod (703) has a fixing hole, and the bottom hinge rod (703) can rotate inside the fixing hole.

10. The winding method of the winding apparatus for PE film production according to any one of claims 1-9, characterized in that, The winding method includes the following steps; S1, the operator wraps the PE film to be rolled around the surface of the guide roller (200), so that one end passes between the two mounting plates (305) and is then connected to the core (402), and drives the drive unit at one end of the take-up roller (401) to drive the take-up roller (401) and the core (402) to rotate, thereby winding up the film. S2, after winding is completed, the drive cylinder (502) drives its output shaft to push the cutting blade (503) down. During the descent, it will contact the film and cut the film. After the cutting is completed, the drive cylinder (503) continues to descend. The cutting blade (503) will drive the extrusion block (708) and push the connecting block (706) to move. The connecting block (706) will drive the moving rod (705) to move. When the moving rod (705) moves, the elastic element (707) will be stretched. The moving rod (705) will push the hinge block (704) to move. The hinge block (704) will drive the two hinge rods (703) to rotate. The two connecting plates (307) will pull the two sliders (702), the mounting plate (305) and the rotating shaft (306) to move towards the surface of the film, thereby fixing the film and preventing the film position from shifting when the mounting plate (305) moves. S3, after the film is fixed, the drive motor (302) causes the lead screw (303) to rotate, and the connecting shell (304) slides on the surface of the lead screw (303). The connecting shell (304) drives the mounting plate (305), the rotating shaft (306), the connecting plate (307), and the film to move towards another non-wound core (402). During the movement, the connecting shell (304) drives the sealing plug (407) into the cylinder (406). As the sealing plug (407) moves, it squeezes the air inside the cylinder (406) into the pneumatic rod (403). As the gas enters, it drives the output shaft of the pneumatic rod (403) to push the connecting ring (404), the core (402), and the take-up roller (401) towards the surface of the connecting plate (307). Then the core (402) abuts against the connecting plate (307) and contacts the surface of the film. S4. At the same time, the vacuum pump (605) is driven to draw air from the inside of the connecting tube (604) through the hose (606), and the connecting tube (604) draws air from the inside of the connecting tube 2 (603), the connecting tube 1 (602) and the suction cup (601). Since the ventilation holes on the surface of the suction cup (601) are consistent with the ventilation holes on the surface of the take-up roller (401) and the core (402), the film will be adsorbed onto the surface of the core (402). Then, the drive unit at one end of the take-up roller (401) is driven, and the take-up roller (401) and the core (402) are rotated, thereby wrapping the film around the surface of the core (402).

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