EVA plastic film anti-wrinkle rewinding device

Abstract

The utility model discloses a kind of EVA plastic film anti-wrinkle rewinding device, it is related to rewinding device technical field, including support platform, the top of support platform is fixedly connected with mounting bracket, the side of mounting bracket is fixedly connected with fixed roller, the bottom of support platform is provided with first driving part, the top of support platform is provided with adjusting assembly, the top of support platform is fixedly connected with support column, the outside of support column is provided with second driving part, the utility model has following beneficial effect: by setting adjusting assembly, the tension in the rewinding process of film can be conveniently adjusted, the flatness and appearance quality of film are improved, film is kept enough stiffness in rewinding process simultaneously, reduce the influence of slack and deviation, by setting dismounting assembly, film roll after rewinding can be conveniently disassembled, the output in unit time is improved, to improve the economic benefit of enterprise.

Description

Technical Field

[0001] This utility model relates to the field of rewinding device technology, and in particular to an anti-wrinkle rewinding device for EVA plastic film. Background Technology

[0002] EVA plastic film is a thermoplastic film copolymerized from ethylene and vinyl acetate. Its core characteristics stem from the control of vinyl acetate content. When the VA content is between 5% and 15%, the film has both high transparency and flexibility, excellent surface gloss, and outstanding low-temperature impact resistance. It can maintain its bending elasticity at -50 degrees Celsius. This characteristic makes it an ideal choice for frozen food packaging, ice packs, and stretch packaging for fresh goods. It can clearly display the state of the contents while resisting the risk of brittleness caused by low temperature environments. As the VA content increases to 15% to 20%, the elasticity, stress crack resistance, and heat-sealing performance of the film are significantly enhanced. Its performance is close to that of flexible PVC film, but its non-toxic and environmentally friendly advantages are more prominent. This type of film is often used as the heat-sealing layer of composite films or blended with homopolymer PE to manufacture medical packaging films. Its high heat-adhesion ensures the airtightness of the packaging, while its water resistance and organic solvent resistance effectively block external pollution and ensure the safe storage of pharmaceuticals and medical devices.

[0003] EVA plastic film, with its excellent flexibility, transparency, and impact resistance, is widely used in packaging, agricultural covering, and electronic insulation. However, during the rewinding process, the film is highly susceptible to wrinkles. Wrinkles not only severely affect the film's appearance quality, making it less competitive in the market, but also fail to meet the standards for packaging and display applications where aesthetics are crucial. This necessitates anti-wrinkle rewinding devices. If a significant amount of time and effort is required to disassemble the film rollers after rewinding a roll, it hinders the rapid transition to the next rewinding cycle, reducing output per unit time and making it difficult to meet market demand for EVA plastic film. This negatively impacts the company's economic benefits. Furthermore, the inconvenience of disassembling the film rollers further complicates the process. Improper assembly and disassembly can also affect product quality. If the film is pulled or scratched due to difficulties in operation during assembly and disassembly, defects will appear on the film surface, reducing the overall quality of the product and affecting the company's reputation and competitiveness in the market. In addition, it is inconvenient to adjust the tension of the film during the rewinding process, which will directly lead to wrinkles. When the tension is too high, the film will be overstretched, resulting in stress concentration in some areas, which will form wrinkles. This will seriously affect the flatness and appearance quality of the film, reducing the product's market competitiveness. On the other hand, if the tension is too low, the film will not be able to maintain sufficient stiffness during the rewinding process, and it will easily become loose and misaligned, which will also cause wrinkles. Furthermore, it will cause the film to delaminate and break during subsequent processing or use. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An anti-wrinkle rewinding device for EVA plastic film includes a support platform, a mounting frame fixedly connected to the top of the support platform, a fixing roller fixedly connected to one side of the mounting frame, a first driving component provided at the bottom of the support platform, an adjustment component provided at the top of the support platform, a support column fixedly connected to the top of the support platform, a second driving component provided on the outside of the support column, a rewinding roller provided on the outside of the second driving component, and a disassembly and assembly component provided at the top of the support platform.

[0007] The adjustment assembly includes a connecting frame disposed on the outside of the first driving member, and a connecting roller is rotatably connected to one side of the connecting frame;

[0008] The assembly / disassembly assembly includes a fixed plate fixedly connected to the top of the support platform, an mounting block slidably connected to the inner wall of the fixed plate, a support frame rotatably connected to the inner wall of the mounting block, and a limit ring rotatably connected to the inner wall of the support frame.

[0009] In a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, the first driving component includes a first motor fixedly connected to the bottom of the support platform, the output end of the first motor is fixedly connected to a first screw, and the outer side of the first screw is threadedly connected to the inner wall of the connecting frame.

[0010] As a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, the second driving component includes a second motor fixedly connected to one side of the support column, and the output end of the second motor is fixedly connected to an installation rod, and the outer side of the installation rod is respectively inserted into the inner wall of the rewinding roller and the limiting ring.

[0011] As a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, the top of the fixing plate is fixedly connected to a fixing frame, the inner wall of the fixing frame is threadedly connected to a second screw, and one end of the second screw is rotatably connected to the inner wall of the support frame.

[0012] In a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, a horizontal plate is slidably connected to the inner wall of the support column, a connecting rod is slidably connected to the inner wall of the horizontal plate, and a squeezing roller is rotatably connected to one end of the connecting rod, with the outer side of the squeezing roller in contact with the outer side of the rewinding roller.

[0013] As a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, the top of the horizontal plate is fixedly connected to a mounting column, the inner wall of the mounting column is provided with a spring, and one end of the spring is fixedly connected to one end of the connecting rod.

[0014] As a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, the support frame is fixedly connected to the outer side of the support frame with a plug-in column, and the inner wall of the plug-in column is plugged into one end of the horizontal plate, and the top of the horizontal plate is fixedly connected to a handle.

[0015] In a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, a positioning ring is slidably connected to the outer side of the fixed roller, a positioning rod is inserted into the inner wall of the positioning ring, and the outer side of the positioning rod is inserted into the inner wall of the fixed roller.

[0016] As a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, the inner wall of the support column is slidably connected to a limiting frame for limiting the horizontal plate, and a pull ring is fixedly connected to one side of the limiting frame.

[0017] As a preferred embodiment of the EVA plastic film anti-wrinkle rewinding device of this utility model, the support platform is equipped with a placement frame on the top, the support platform is fixedly connected to a positioning frame, the inner wall of the positioning frame is provided with a guide groove, and the inner wall of the guide groove is slidably connected to the outer side of the connecting frame.

[0018] In summary, this utility model has the following beneficial effects: by setting the adjustment component, the tension during the film rewinding process can be easily adjusted, improving the flatness and appearance quality of the film, while ensuring that the film maintains sufficient stiffness during the rewinding process, reducing the effects of looseness and deviation. By setting the disassembly and assembly component, the film roller after rewinding can be easily disassembled, increasing the output per unit time, thereby improving the economic benefits of the enterprise. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a structural diagram of the EVA plastic film anti-wrinkle rewinding device.

[0021] Figure 2 This is a structural diagram of the first drive component of the EVA plastic film anti-wrinkle rewinding device.

[0022] Figure 3 This is a structural diagram of the second drive component of the EVA plastic film anti-wrinkle rewinding device.

[0023] Figure 4 for Figure 3 The enlarged structural diagram at point A is shown.

[0024] Figure 5 for Figure 3 The enlarged structural diagram at point B is shown.

[0025] Figure 6 for Figure 2 The enlarged structural diagram at point C is shown.

[0026] The following are the labeling elements in the diagram: 1. Support platform; 2. Mounting frame; 3. Fixed roller; 4. First drive component; 41. First motor; 42. First screw; 5. Adjustment assembly; 51. Connecting frame; 52. Connecting roller; 6. Support column; 7. Second drive component; 71. Second motor; 72. Mounting rod; 8. Rewinding roller; 9. Disassembly assembly; 91. Fixed plate; 92. Mounting block; 93. Support frame; 94. Limiting ring; 10. Fixed frame; 11. Second screw; 12. Horizontal plate; 13. Connecting rod; 14. Extrusion roller; 15. Mounting column; 16. Spring; 17. Insertion column; 18. Handle; 19. Positioning ring; 20. Positioning rod; 21. Limiting frame; 22. Pull ring; 23. Placement frame; 24. Positioning frame; 25. Guide groove. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Example 1:

[0031] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides an anti-wrinkle rewinding device for EVA plastic film, including a support platform 1, a mounting frame 2 fixedly connected to the top of the support platform 1, a fixing roller 3 fixedly connected to one side of the mounting frame 2, a first driving member 4 provided at the bottom of the support platform 1, an adjusting component 5 provided at the top of the support platform 1, a support column 6 fixedly connected to the top of the support platform 1, a second driving member 7 provided on the outside of the support column 6, a rewinding roller 8 provided on the outside of the second driving member 7, and a disassembly and assembly component 9 provided at the top of the support platform 1.

[0032] The support platform 1 serves as the basic support structure for the entire rewinding device, providing installation positions and support for other components, ensuring the overall stability of the device and enabling it to be stably placed in the working environment for operation. The mounting frame 2 provides installation support for the fixed roller 3, ensuring that the fixed roller 3 can be securely installed in a suitable position above the support platform 1 for initial guidance and fixation of the EVA plastic film. The fixed roller 3 is used to carry and initially guide the EVA plastic film. During the rewinding process, the plastic film roller is mounted on the fixed roller 3. The first driving component 4 enables... The adjustment component 5 is provided with power, and its setting enables the adjustment component 5 to move. The support column 6 provides installation support for the second drive component 7, the rewinding roller 8 and the cross plate 12. The second drive component 7 provides power for the rotation of the rewinding roller 8. The rewinding roller 8 can rotate under the drive of the second drive component 7 to rewind the EVA plastic film after it has been adjusted by the fixed roller 3 and the connecting roller 52, so that the film is neatly wrapped on the rewinding roller 8 to complete the rewinding process. The disassembly and assembly component 9 facilitates the installation and disassembly of the rewinding roller 8.

[0033] The adjustment component 5 includes a connecting frame 51 disposed on the outside of the first drive member 4, and a connecting roller 52 is rotatably connected to one side of the connecting frame 51.

[0034] The connecting frame 51 is designed to move up and down under the action of the first driving member 4, thereby driving the connecting roller 52 to move vertically. The connecting roller 52 can adjust the tension of the passing EVA plastic film. By driving the connecting frame 51 and the connecting roller 52 up and down through the first driving member 4, the distance between the connecting roller 52 and the fixed roller 3 can be changed, thereby adjusting the tension of the film. When the distance between the connecting roller 52 and the fixed roller 3 increases, the span of the film between them becomes longer, the tensile force on the film increases, and the tension also increases. This can make the originally loose film taut, effectively preventing the film from becoming loose, deviating, and wrinkled due to insufficient tension during the rewinding process. The essence of film wrinkles is local stress imbalance. When the film is subjected to excessive force in one direction and insufficient force in another direction, a unidirectional loose area will be formed, resulting in wrinkles. Tension adjustment ensures that the film maintains stable tension during the rewinding process, avoiding stress concentration.

[0035] The assembly 9 includes a fixed plate 91 fixedly connected to the top of the support platform 1. The inner wall of the fixed plate 91 is slidably connected to an installation block 92. The inner wall of the installation block 92 is rotatably connected to a support frame 93. The inner wall of the support frame 93 is rotatably connected to a limit ring 94.

[0036] The fixing plate 91 provides a mounting base for the mounting block 92, allowing the mounting block 92 to slide on its inner wall. It should be noted that the inner wall of the fixing plate 91 is fixed with a fixing strip to prevent the mounting block 92 from tilting during sliding. The mounting block 92 allows for the sliding adjustment of the positions of the support frame 93 and the limiting ring 94, enabling the limiting ring 94 to be inserted into the outer side of the mounting rod 72. This provides support to one end of the mounting rod 72 to prevent tilting and limits the rewinding roller 8, preventing it from detaching from the mounting rod 72 during rotation. The support frame 93 supports the limiting ring 94 and allows it to rotate with the mounting rod 72. The limiting ring 94 rotates together with the rewinding roller 8 during rewinding, providing limiting and auxiliary support to the rewinding roller 8, preventing it from shifting during rotation and ensuring the neatness of the rewinding.

[0037] Example 2:

[0038] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0039] Specifically, the first driving component 4 includes a first motor 41 fixedly connected to the bottom of the support platform 1, and a first screw 42 fixedly connected to the output end of the first motor 41, and the outer side of the first screw 42 is threadedly connected to the inner wall of the connecting frame 51.

[0040] The first motor 41 is configured to serve as a power source, providing power to the adjustment component 5 and driving the first screw 42 to rotate. The first screw 42 is configured to drive the connecting frame 51 to move up and down in the vertical direction through the thread transmission principle, thereby realizing the adjustment of the position of the adjustment component 5 to adapt to EVA plastic films with different thicknesses or tension requirements.

[0041] Specifically, the second driving component 7 includes a second motor 71 fixedly connected to one side of the support column 6. The output end of the second motor 71 is fixedly connected to a mounting rod 72, and the outer side of the mounting rod 72 is inserted into the inner wall of the rewinding roller 8 and the limiting ring 94 respectively.

[0042] The second motor 71 is configured to serve as a power source to provide power for the rotation of the rewinding roller 8 and drive the mounting rod 72 to rotate. The mounting rod 72 is configured to drive the rewinding roller 8 and the limiting ring 94 to rotate together under the drive of the second motor 71, thereby realizing the rewinding operation of the EVA plastic film.

[0043] Specifically, a fixing frame 10 is fixedly connected to the top of the fixing plate 91, and a second screw 11 is threadedly connected to the inner wall of the fixing frame 10, with one end of the second screw 11 rotatably connected to the inner wall of the support frame 93.

[0044] The fixed frame 10 provides mounting support for the second screw 11. The second screw 11, using the principle of threaded transmission, can push the support frame 93 and the mounting block 92 to slide within the fixed plate 91, thereby limiting the position of the support frame 93 and the limiting ring 94, and thus facilitating the limiting of the rewinding roller 8. It should be noted that one end of the second screw 11 is only rotatably connected to the inner wall of the support frame 93, and can only push the support frame 93 but cannot pull it. This setting is to prevent the second screw 11 from interfering with the rotation of the support frame 93 when the rewinding roller 8 needs to be disassembled.

[0045] Specifically, a horizontal plate 12 is slidably connected to the inner wall of the support column 6, a connecting rod 13 is slidably connected to the inner wall of the horizontal plate 12, and a pressing roller 14 is rotatably connected to one end of the connecting rod 13, with the outer side of the pressing roller 14 in contact with the outer side of the rewinding roller 8.

[0046] The horizontal plate 12 is integrally formed, and like the insertion part of the support plate 93, it has 12 parts. The horizontal plate 12 provides a mounting base for the connecting rod 13 and the extrusion roller 14, allowing the extrusion roller 14 to be positioned appropriately to expel air between the films on the rewinding roller 8, preventing air retention that could cause the film roll to become loose, wrinkled, bulging, or delaminated. The connecting rod 13 can slide within the horizontal plate 12, allowing the extrusion roller 14 to adaptively adjust according to changes in the film thickness on the rewinding roller 8. It should be noted that the rotational speed of the extrusion roller 14 depends on... The rotation of the rewinding roller 8 will drive the extrusion roller 14, which is attached to the outside of the rewinding roller 8, to rotate synchronously. At the same time, through the action of the spring 16, the extrusion roller 14 maintains a certain pressure on the film on the rewinding roller 8, ensuring that the film can be tightly and neatly wound on the rewinding roller 8, further improving the rewinding quality. The extrusion roller 14 can apply a certain pressure to the EVA plastic film on the rewinding roller 8, making the film tighter and flatter during the winding process, effectively preventing the film from becoming loose or wrinkled, and improving the neatness and quality of rewinding.

[0047] Specifically, a mounting post 15 is fixedly connected to the top of the horizontal plate 12, and a spring 16 is provided on the inner wall of the mounting post 15, with one end of the spring 16 fixedly connected to one end of the connecting rod 13.

[0048] The mounting post 15 provides mounting space for the spring 16. The spring 16 is designed to press the connecting rod 13 when the film thickness on the rewinding roller 8 increases, causing the connecting rod 13 to slide within the horizontal plate 12. At the same time, the spring 16 is compressed. When the film thickness changes, the elastic force of the spring 16 ensures that the pressing roller 14 always maintains appropriate pressure on the film, thus guaranteeing the rewinding quality.

[0049] Specifically, the outer side of the support frame 93 is fixedly connected to the insertion post 17, and the inner wall of the insertion post 17 is inserted into one end of the horizontal plate 12. The top of the horizontal plate 12 is fixedly connected to the handle 18.

[0050] The plug-in post 17 serves to connect the support frame 93 and the horizontal plate 12. The plug-in connection allows for quick disassembly and installation of the horizontal plate 12 when needed, thus facilitating the installation and disassembly of the rewinding roller 8. The handle 18 provides a leverage point for the operator, making it easy for the operator to lift the horizontal plate 12 and adjust its position, thereby preventing any impact on the sliding and rotation of the support frame 93.

[0051] Specifically, a positioning ring 19 is slidably connected to the outer side of the fixed roller 3, and a positioning rod 20 is inserted into the inner wall of the positioning ring 19, with the outer side of the positioning rod 20 inserted into the inner wall of the fixed roller 3.

[0052] The positioning ring 19 is designed to position the film roller and prevent it from sliding during the film feeding process. The positioning rod 20 is designed to fix the positioning ring 19 and thus position it.

[0053] Example 3:

[0054] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0055] Specifically, the inner wall of the support column 6 is slidably connected to a limiting frame 21 for limiting the horizontal plate 12, and a pull ring 22 is fixedly connected to one side of the limiting frame 21.

[0056] The limiting frame 21 is used to limit the horizontal plate 12. After the horizontal plate 12 slides to a suitable position in the support column 6, the limiting frame 21 is pulled to stabilize the horizontal plate 12 and the extrusion roller 14 to a suitable height, preventing the extrusion roller 14 from affecting the disassembly and assembly of the rewinding roller 8. The pull ring 22 provides a point of leverage for the operator, making it convenient for the operator to pull the limiting frame 21.

[0057] Specifically, a placement frame 23 is installed on the top of the support platform 1, and a positioning frame 24 is fixedly connected to the top of the support platform 1. A guide groove 25 is opened on the inner wall of the positioning frame 24, and the inner wall of the guide groove 25 is slidably connected to the outer side of the connecting frame 51.

[0058] The placement frame 23 is designed to hold the film rollers that need to be rewound, making it convenient for operators to access them at any time during the rewinding process and improving work efficiency. The positioning frame 24 provides guidance and positioning for the connecting frame 51. The guide groove 25 restricts the connecting frame 51 to move only in the vertical direction, preventing the connecting frame 51 from being rotated by the first screw 42, thereby effectively adjusting the film tension.

[0059] In use, first remove the film roller from the placement frame 23 and insert it onto the outside of the fixed roller 3. Then, insert the positioning ring 19 onto the outside of the fixed roller 3 to limit the film roller. It should be noted that the inner wall of the film roller is rotatably connected to the outer side of the fixed roller 3. After that, insert the positioning rod 20 to limit the positioning ring 19. Then, wrap the film around the bottom of the connecting roller 52 and adhere it to the outside of the rewinding roller 8. At this time, the first motor 41 can be started. The first motor 41 drives the first screw 42 to rotate. The first screw 42 drives the connecting frame 51 and the connecting roller 52 to move vertically, thereby adjusting the film to a suitable tension. Then, the second motor 71 is started. The second motor 71 drives the mounting rod 72 to rotate. The mounting rod 72 drives the rewinding roller 8 to rotate, and at the same time, the extrusion roller 1... 4. The air between the film and the rewinding roller 8 is squeezed out to prevent wrinkles, thereby completing the rewinding of the film. When the rewinding roller 8 needs to be disassembled after rewinding, first hold the handle 18 to drive the horizontal plate 12 to move vertically. After the horizontal plate 12 moves to a suitable height, pull the pull ring 22. The pull ring 22 drives the limit frame 21 to limit the horizontal plate 12 to prevent interference with the disassembly of the rewinding roller 8. Then, the second screw 11 can be rotated. The second screw 11 rotates and moves horizontally along the inner wall of the fixed frame 10, thereby releasing the limit on the support frame 93. Then, pull the support frame 93 to drive the limit ring 94 and the mounting block 92 to move horizontally until they are separated from the mounting rod 72. Then, rotate the support frame 93 from vertical to horizontal to release the limit on the rewinding roller 8. At this time, pull the rewinding roller 8 to take it out.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An anti-wrinkle rewinding device for EVA plastic film, comprising a support platform (1), characterized in that: The top of the support platform (1) is fixedly connected to a mounting frame (2), and a fixing roller (3) is fixedly connected to one side of the mounting frame (2). A first driving component (4) is provided at the bottom of the support platform (1), an adjustment component (5) is provided at the top of the support platform (1), a support column (6) is fixedly connected to the top of the support platform (1), a second driving component (7) is provided on the outside of the support column (6), a rewinding roller (8) is provided on the outside of the second driving component (7), and a disassembly and assembly component (9) is provided at the top of the support platform (1). The adjustment component (5) includes a connecting frame (51) disposed on the outside of the first driving member (4), and a connecting roller (52) is rotatably connected to one side of the connecting frame (51); The assembly / disassembly assembly (9) includes a fixing plate (91) fixedly connected to the top of the support platform (1), an mounting block (92) is slidably connected to the inner wall of the fixing plate (91), a support frame (93) is rotatably connected to the inner wall of the mounting block (92), and a limit ring (94) is rotatably connected to the inner wall of the support frame (93).

2. The EVA plastic film anti-wrinkle rewinding device as described in claim 1, characterized in that: The first driving component (4) includes a first motor (41) fixedly connected to the bottom of the support platform (1). The output end of the first motor (41) is fixedly connected to a first screw (42), and the outer side of the first screw (42) is threadedly connected to the inner wall of the connecting frame (51).

3. The EVA plastic film anti-wrinkle rewinding device as described in claim 1, characterized in that: The second driving component (7) includes a second motor (71) fixedly connected to one side of the support column (6). The output end of the second motor (71) is fixedly connected to a mounting rod (72), and the outer side of the mounting rod (72) is inserted into the inner wall of the rewinding roller (8) and the limiting ring (94) respectively.

4. The EVA plastic film anti-wrinkle rewinding device as described in claim 1, characterized in that: The top of the fixed plate (91) is fixedly connected to a fixed frame (10), and the inner wall of the fixed frame (10) is threadedly connected to a second screw (11), and one end of the second screw (11) is rotatably connected to the inner wall of the support frame (93).

5. The EVA plastic film anti-wrinkle rewinding device as described in claim 1, characterized in that: The inner wall of the support column (6) is slidably connected to a horizontal plate (12), and the inner wall of the horizontal plate (12) is slidably connected to a connecting rod (13). One end of the connecting rod (13) is rotatably connected to a pressing roller (14), and the outer side of the pressing roller (14) is in contact with the outer side of the rewinding roller (8).

6. The EVA plastic film anti-wrinkle rewinding device as described in claim 5, characterized in that: The top of the horizontal plate (12) is fixedly connected to a mounting column (15), and a spring (16) is provided on the inner wall of the mounting column (15), and one end of the spring (16) is fixedly connected to one end of the connecting rod (13).

7. The EVA plastic film anti-wrinkle rewinding device as described in claim 5, characterized in that: The support frame (93) is fixedly connected to the outer side of the plug-in column (17), and the inner wall of the plug-in column (17) is plugged into one end of the horizontal plate (12). The top of the horizontal plate (12) is fixedly connected to the handle (18).

8. The EVA plastic film anti-wrinkle rewinding device as described in claim 1, characterized in that: A positioning ring (19) is slidably connected to the outer side of the fixed roller (3), and a positioning rod (20) is inserted into the inner wall of the positioning ring (19), with the outer side of the positioning rod (20) inserted into the inner wall of the fixed roller (3).

9. The EVA plastic film anti-wrinkle rewinding device as described in claim 5, characterized in that: The inner wall of the support column (6) is slidably connected to a limiting frame (21) for limiting the horizontal plate (12), and a pull ring (22) is fixedly connected to one side of the limiting frame (21).

10. The EVA plastic film anti-wrinkle rewinding device as described in claim 1, characterized in that: The top of the support platform (1) is equipped with a placement frame (23), and the top of the support platform (1) is fixedly connected with a positioning frame (24). The inner wall of the positioning frame (24) is provided with a guide groove (25), and the inner wall of the guide groove (25) is slidably connected to the outer side of the connecting frame (51).

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