Winding device for electronic product protective film processing

By introducing an adjustable ion fan and heating tube into the protective film winding device, the problem of electrostatic removal of protective films with different thicknesses and surface characteristics is solved, improving the electrostatic removal effect and film quality, and achieving higher bonding strength and winding stability.

CN121894483APending Publication Date: 2026-04-21HUNAN ZONGYOU ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN ZONGYOU ELECTRONIC TECH CO LTD
Filing Date
2025-12-12
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the existing technology, ion blowers installed in a fixed position are difficult to effectively remove static electricity from protective films of different thicknesses and surface roughness, resulting in poor static electricity removal effect and affecting the quality of the protective film.

Method used

A winding device for processing protective films for electronic products was designed. By introducing an adjustable ion fan and heating tube into the device, combined with a lifting cylinder and adjusting seat, the distance between the ion fan and the film can be dynamically adjusted. The heating tube can also increase molecular motion and accelerate the bonding process, adapting to protective films of different thicknesses and surface properties.

Benefits of technology

It improves the electrostatic removal effect and adhesion strength of the protective film, enhances the adaptability of the device and the quality of the film, and ensures the stability and safety of the winding process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of protective film processing, and particularly relates to a winding device for electronic product protective film processing. An unwinding assembly and a lamination composite box are mounted at the top of the winding table; the top of the winding table is fixedly connected with a lamination composite box; the bottom of the unwinding assembly is fixedly connected with a driving motor; a rotating shaft is rotationally connected into the lamination composite box; the driving motor and the rotating shaft are connected through chain transmission; a central roller is fixedly connected to the middle of the rotating shaft; a pair of extrusion rollers is mounted in the lamination composite box; the pair of extrusion rollers are positioned on two sides of the rotating shaft; a plurality of transmission rollers are rotationally connected into the lamination composite box, a lifting air cylinder is controlled to drive an adjusting base to move up and down in an adjusting mode by controlling a switch of the lifting air cylinder, so that the distance between an ion fan and a film is adjusted, the ion fan conducts static electricity elimination on the film adaptively, and the adaptability of the device is improved.
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Description

Technical Field

[0001] This invention belongs to the field of protective film processing technology, specifically a winding device for processing protective films for electronic products. Background Technology

[0002] Electronic product screen protectors are thin films that are applied to the surface of a device's screen or casing. Their main purpose is to provide physical and chemical protection without sacrificing the user experience.

[0003] Protective films are divided into hard films and soft films. Hard films, such as tempered glass films, serve as drop protection, while soft films provide better visual effects. In order to optimize material performance, existing technologies use lamination composite technology, which combines various different polymer materials to form a new film during the production of the base film. Only expensive functional materials are used in key layers, while inexpensive general-purpose materials are used in other layers, thus reducing the total raw material cost while ensuring performance. During the film production and winding process, static electricity usually adheres to the film surface due to factors such as dry environment and roller friction, resulting in dust and impurities on the film surface, causing bumps or pits in the film layer. In subsequent slitting and die-cutting, the film in this area becomes waste.

[0004] Therefore, existing technologies typically use ion blowers to remove electrostatic deposits on protective films and improve the safety of the protective film during winding. However, existing ion blowers are usually installed in fixed positions, making it difficult to achieve better removal results when electrostatically removing protective films of different thicknesses and surface roughness.

[0005] Therefore, the present invention provides a winding device for processing protective films for electronic products. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A winding device for processing protective films for electronic products, comprising a winding table; an unwinding assembly and a lamination box are installed on the top of the winding table; the lamination box is fixedly connected to the top of the winding table; a drive motor is fixedly connected to the bottom of the unwinding assembly; a rotating shaft is rotatably connected inside the lamination box; the drive motor and the rotating shaft are connected by a chain drive; a center roller is fixedly connected to the middle of the rotating shaft; a pair of extrusion rollers are installed inside the lamination box; the pair of extrusion rollers are located on both sides of the rotating shaft; multiple transmission rollers are rotatably connected inside the lamination box; a support base is fixedly connected to the top of the winding table; a lifting cylinder is fixedly connected to one of the support bases; an adjusting seat is slidably connected to the middle of the support base; the output end of the lifting cylinder is fixedly connected to the side wall of the adjusting seat; an ion fan is fixedly connected to the middle of the adjusting seat.

[0008] Preferably, one end of the central roller is rotatably connected to a fixed plate; multiple fixed columns are fixedly connected to the side wall of the fixed plate; the ends of the fixed columns are fixedly connected to the inner side wall of the lamination box; multiple heating tubes are fixedly connected to the side wall of the lamination box; the heating end of the heating tube is located inside the rotating shaft.

[0009] Preferably, a pair of adjusting cylinders are fixedly connected to the side wall of the laminated composite box; the extrusion roller is located on the output end of the winding assembly and is fixedly connected to the winding assembly.

[0010] Preferably, a pair of fixed bases are fixedly connected to the top of the winding table; tension adjusters are fixedly connected to the side walls of each pair of fixed bases; and a tension roller is installed between the tension adjusters.

[0011] Preferably, an air extractor is fixedly connected to the bottom of the winding table; air holes are provided on the side wall of the laminated composite box; and an air duct is fixedly connected between the air extractor and the air holes.

[0012] Preferably, a collar is slidably connected to the middle of the adjusting seat; multiple sets of bristles are fixed to the inner sidewall of the collar.

[0013] Preferably, the inner sidewall of the collar is rotatably connected to a plurality of anti-wear rollers; the surfaces of the anti-wear rollers and the surfaces of the adjusting seat are in contact with each other.

[0014] Preferably, a guide rod is fixedly connected to the side wall of the support seat; the guide rod passes through the side wall of the adjustment seat and is slidably connected to the adjustment seat.

[0015] The beneficial effects of this invention are as follows: 1. The winding device for processing protective film for electronic products according to the present invention controls the switch of the lifting cylinder to drive the adjusting seat to move up and down, thereby adjusting the distance between the ion fan and the film, so that the ion fan can adaptively eliminate static electricity on the film, increasing the adaptability of the device.

[0016] 2. The winding device for processing protective films for electronic products according to the present invention turns on the power switch of the heating tube when the rotating shaft is laminating the base film, so that the heating tube heats the inside of the rotating shaft and transfers the heat to the base film being laminated through the rotating shaft, thereby accelerating molecular movement and making the base film better bonded. The resulting film has high strength and improves the quality of the protective film. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the winding table in this invention; Figure 3This is a schematic diagram of the ion fan in this invention; Figure 4 This is a schematic diagram of the collar structure in this invention; Figure 5 This is a schematic diagram of the structure of the laminated composite box in this invention; Figure 6 This is a schematic diagram of the extrusion roller in this invention; Figure 7 This is a schematic diagram of the structure of the central roller in this invention; In the diagram: 1. Rewinding table; 11. Unwinding assembly; 12. Lamination and composite box; 13. Rewinding assembly; 14. Drive motor; 15. Rotary shaft; 16. Center roller; 17. Extrusion roller; 18. Transmission roller; 101. Support base; 102. Lifting cylinder; 103. Adjusting seat; 104. Ionizing fan; 2. Fixed plate; 21. Fixed column; 22. Heating tube; 3. Adjusting cylinder; 4. Fixed base; 41. Tension regulator; 42. Tension roller; 5. Air extractor; 51. Air hole; 52. Air duct; 6. Collar; 61. Brush bristles; 7. Anti-wear roller; 8. Guide rod. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figures 1 to 7As shown in the embodiment of the present invention, a winding device for processing protective films for electronic products includes a winding table 1; an unwinding assembly 11 and a lamination box 12 are mounted on the top of the winding table 1; the lamination box 12 is fixedly connected to the top of the winding table 1; a drive motor 14 is fixedly connected to the bottom of the unwinding assembly 11; a rotating shaft 15 is rotatably connected inside the lamination box 12; the drive motor 14 and the rotating shaft 15 are connected by a chain drive; a center roller 16 is fixedly connected to the middle of the rotating shaft 15; a pair of extrusion rollers 17 are installed inside the lamination box 12; the pair of extrusion rollers 17 are located on both sides of the rotating shaft 15; a plurality of transmission rollers 18 are rotatably connected inside the lamination box 12; a support base 101 is fixedly connected to the top of the winding table 1; a lifting cylinder 102 is fixedly connected to one of the support bases 101; an adjusting seat 103 is slidably connected to the middle of the support base 101; the output end of the lifting cylinder 102 and the adjusting seat 103 are connected to the adjusting seat 103. The side wall of the adjustment seat 103 is fixedly connected; an ion fan 104 is fixedly connected to the middle of the adjustment seat 103. During operation, the multilayer base film is unwound into the lamination box 12 by the unwinding assembly 11. Then, under the guidance of the transmission roller 18, the base film is formed into a new film through the co-extrusion action of the rotating shaft 15 and the extrusion roller 17 and continues to be transported to the outside through the lamination box 12. At this time, the protective film passes under the ion fan 104 and is finally wound up by the winding assembly 13. When passing under the ion fan 104, the static electricity on the surface of the film is removed by the ion fan 104. When it is necessary to wind up the protective film of different products, the lifting cylinder 102 is controlled to drive the adjustment seat 103 to move up and down, thereby adjusting the distance between the ion fan 104 and the film, so that the ion fan 104 can adaptively eliminate static electricity on the film, increasing the adaptability of this device.

[0021] like Figures 1 to 7 As shown, one end of the central roller 16 is rotatably connected to a fixed plate 2; multiple fixed posts 21 are fixedly connected to the side wall of the fixed plate 2; the ends of the fixed posts 21 are fixedly connected to the inner side wall of the lamination box 12; multiple heating tubes 22 are fixedly connected to the side wall of the lamination box 12; the heating end of the heating tube 22 is located inside the rotating shaft 15. During operation, when the rotating shaft 15 is laminating the base film, the power switch of the heating tube 22 is turned on, so that the heating tube 22 heats the inside of the rotating shaft 15 and transfers the heat to the base film being laminated through the rotating shaft 15, accelerating molecular movement and making the base film better bonded. The resulting film has high strength and improves the quality of the protective film.

[0022] like Figures 1 to 7As shown, a pair of adjusting cylinders 3 are fixedly connected to the side wall of the lamination box 12; the extrusion roller 17 is located on the output end of the winding assembly 13 and is fixedly connected to the winding assembly 13. During operation, the position of the extrusion roller 17 is adjusted by controlling the adjusting cylinders 3, thereby adjusting the extrusion force of the extrusion roller 17 on the film, adapting to protective films of different thicknesses and sizes, and improving the stability during the winding and extrusion process.

[0023] like Figures 1 to 7 As shown, a pair of fixed bases 4 are fixedly connected to the top of the winding table 1; tension regulators 41 are fixedly connected to the side walls of each pair of fixed bases 4; tension rollers 42 are installed between the tension regulators 41. During operation, by adding tension rollers 42 during the winding process, when the film becomes loose or tight during winding, the tension regulators 41 sense and adjust the tension rollers 42 to adjust the tension of the film during winding in a timely manner, thereby increasing the safety and stability of film winding.

[0024] like Figures 1 to 7 As shown, an air extractor 5 is fixedly connected to the bottom of the winding table 1; an air hole 51 is opened on the side wall of the lamination box 12; an air duct 52 is fixedly connected between the air extractor 5 and the air hole 51. During operation, by turning on the switch of the air extractor 5, the air extractor 5 draws air from the inside of the lamination box 12 through the air hole 51 and the air duct 52, which can remove dust and impurities inside the lamination box 12, reduce the adhesion of dust and impurities to the base film bonding surface, and prevent the film from bulging or sinking after bonding, thereby improving the production quality of the film.

[0025] like Figures 1 to 7 As shown, a collar 6 is slidably connected to the middle of the adjusting seat 103; multiple sets of bristles 61 are fixed to the inner side wall of the collar 6. During operation, after the ion fan 104 has been used for a long time, dust and impurities accumulate on the dust cover on the surface of the ion fan 104, which affects the air output effect of the ion fan 104. At this time, the operator pulls the collar 6 so that the bristles 61 on the collar 6 can clean the surface of the protective cover of the ion fan 104, making the air flow of the ion fan 104 smoother, thereby improving the stability of the ion fan 104 in removing static electricity.

[0026] like Figures 1 to 7 As shown, multiple anti-wear rollers 7 are rotatably connected to the inner sidewall of the collar 6; the surface of the anti-wear rollers 7 and the surface of the adjusting seat 103 are in contact with each other. During operation, by installing the anti-wear rollers 7 on the collar 6, the collar 6 can move more smoothly on the adjusting seat 103, while reducing frictional wear and increasing the service life and stability of the collar 6.

[0027] like Figures 1 to 7As shown, a guide rod 8 is fixedly connected to the side wall of the support base 101; the guide rod 8 passes through the side wall of the adjustment base 103 and is slidably connected to the adjustment base 103. During operation, by adding the guide rod 8 for limiting and guiding, the lifting cylinder 102 can drive the adjustment base 103 to move up and down more stably.

[0028] Working principle: The multilayer base film is unwound into the lamination box 12 by the unwinding assembly 11. Then, under the guidance of the transmission roller 18, the base film is formed into a new film through the co-extrusion action of the rotating shaft 15 and the extrusion roller 17 and continues to be transported to the outside through the lamination box 12. At this time, the protective film passes under the ion blower 104 and is finally wound up by the winding assembly 13. When passing under the ion blower 104, the static electricity on the surface of the film is removed by the ion blower 104. When it is necessary to wind up the protective film for different products, the lifting cylinder 102 is switched on and off, so that the lifting cylinder 102 drives the adjusting seat 103 to move up and down, thereby adjusting the distance between the ion blower 104 and the film, so that the ion blower 104 can adaptively eliminate static electricity from the film, increasing the adaptability of this device.

[0029] When the rotating shaft 15 is used to laminate the base film, the power switch of the heating tube 22 is turned on, so that the heating tube 22 heats the inside of the rotating shaft 15 and transfers the heat to the base film being laminated through the rotating shaft 15, which accelerates molecular movement and makes the base film better bonded. The resulting film has high strength and improves the quality of the protective film.

[0030] The position of the extrusion roller 17 is adjusted by controlling the regulating cylinder 3, thereby adjusting the extrusion force of the extrusion roller 17 on the film, adapting to protective films of different thicknesses and sizes, and improving the stability during the winding and extrusion process.

[0031] By adding a tension roller 42 during the winding process, when the film becomes loose or tight during winding, the tension regulator 41 senses and adjusts the tension roller 42 to adjust the tension of the film during winding in a timely manner, thereby increasing the safety and stability of film winding.

[0032] By turning on the air extractor 5, the air extractor 5 draws air from the inside of the lamination box 12 through the air hole 51 and the air duct 52, which can remove dust and impurities inside the lamination box 12, reduce the adhesion of dust and impurities to the base film bonding surface, and prevent problems such as bulges or depressions after film bonding, thus improving the production quality of the film.

[0033] After prolonged use, dust and impurities accumulate on the dust cover of the ion fan 104, affecting its airflow performance. In this case, the operator pulls the collar 6 to allow the bristles 61 on the collar 6 to clean the surface of the protective cover of the ion fan 104, making the airflow of the ion fan 104 smoother and thus improving the stability of the ion fan 104 in removing static electricity.

[0034] By installing anti-wear rollers 7 on the collar 6, the collar 6 can move more smoothly on the adjusting seat 103, while reducing frictional wear and increasing the service life and stability of the collar 6.

[0035] By adding a guide rod 8 for limiting and guiding, the lifting cylinder 102 can drive the adjusting seat 103 to move up and down more stably.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winding device for processing protective films for electronic products, comprising a winding table (1); an unwinding assembly (11) and a lamination box (12) are mounted on the top of the winding table (1); characterized in that: The top of the winding table (1) is fixedly connected to a laminating box (12); the bottom of the unwinding assembly (11) is fixedly connected to a drive motor (14); a rotating shaft (15) is rotatably connected inside the laminating box (12); the drive motor (14) and the rotating shaft (15) are connected by a chain drive; a center roller (16) is fixedly connected to the middle of the rotating shaft (15); a pair of extrusion rollers (17) are installed inside the laminating box (12); the pair of extrusion rollers (17) are located on the rotating shaft (14). 5) Set on both sides; multiple transmission rollers (18) are rotatably connected inside the laminated composite box (12); a support seat (101) is fixedly connected to the top of the winding table (1); a lifting cylinder (102) is fixedly connected to one of the support seats (101); an adjusting seat (103) is slidably connected to the middle of the support seat (101); the output end of the lifting cylinder (102) is fixedly connected to the side wall of the adjusting seat (103); an ion fan (104) is fixedly connected to the middle of the adjusting seat (103).

2. The winding device for processing protective film for electronic products according to claim 1, characterized in that: One end of the central roller (16) is rotatably connected to a fixed plate (2); a plurality of fixed columns (21) are fixedly connected to the side wall of the fixed plate (2); the end of the fixed column (21) is fixedly connected to the inner side wall of the lamination composite box (12); a plurality of heating tubes (22) are fixedly connected to the side wall of the lamination composite box (12); the heating end of the heating tube (22) is located inside the rotating shaft (15).

3. The winding device for processing protective film for electronic products according to claim 2, characterized in that: A pair of adjusting cylinders (3) are fixedly connected to the side wall of the laminated composite box (12); the extrusion roller (17) is located on the output end of the winding assembly (13) and is fixedly connected to the winding assembly (13).

4. The winding device for processing protective film for electronic products according to claim 3, characterized in that: A pair of fixed bases (4) are fixedly connected to the top of the winding table (1); tension adjusters (41) are fixedly connected to the side walls of the pair of fixed bases (4); tension rollers (42) are installed between the tension adjusters (41).

5. A winding device for processing protective films for electronic products according to claim 4, characterized in that: The bottom of the winding table (1) is fixedly connected to an air extractor (5); the side wall of the laminated composite box (12) is provided with an air hole (51); and an air duct (52) is fixedly connected between the air extractor (5) and the air hole (51).

6. The winding device for processing protective film for electronic products according to claim 5, characterized in that: The adjusting seat (103) is slidably connected to a collar (6) in the middle; multiple sets of bristles (61) are fixed to the inner side wall of the collar (6).

7. A winding device for processing protective films for electronic products according to claim 6, characterized in that: The inner wall of the collar (6) is rotatably connected to multiple anti-wear rollers (7); the surface of the anti-wear rollers (7) and the surface of the adjusting seat (103) are in contact with each other.

8. A winding device for processing protective films for electronic products according to claim 7, characterized in that: A guide rod (8) is fixedly connected to the side wall of the support base (101); the guide rod (8) passes through the side wall of the adjustment base (103) and is slidably connected to the adjustment base (103).