A rewinding device for producing shielding film

Abstract

This utility model relates to the field of shielding film technology and discloses a rewinding device for shielding film production, including a base, with a motor fixedly connected to one side of the outer wall of the base. In this utility model, the airflow generated by the air pump enters the inner cavity of the guide roller through a connecting pipe and is discharged through an exhaust hole to form a stable air film. This air film provides flexible support, offering uniform lifting force to the shielding film to maintain a stable transmission height and path. It also reduces the direct contact area between the shielding film and the guide roller, fundamentally reducing the amount of static electricity generated by solid friction, significantly reducing the probability of dust and impurity adsorption, and effectively preventing stains or impurity indentations on the product surface. Simultaneously, when the motor drives the lead screw to rotate, the rotational motion can be converted into linear motion through a slider, enabling flexible adjustment of the axial position of the guide roller and ensuring that the air film always acts on the central area of ​​the shielding film, guaranteeing support stability.

Description

Technical Field

[0001] This utility model relates to the field of shielding film technology, specifically a rewinding device for shielding film production. Background Technology

[0002] Shielding film is a thin film material with electromagnetic shielding function. It is usually composed of a substrate layer, a metal shielding layer and an adhesive layer. In the production process of shielding film, rewinding is one of the important processes. Its main function is to rewind and sort the original roll of shielding film for subsequent processing and use.

[0003] In traditional rewinding equipment, the guide rollers and the shielding film are mostly in direct contact. Since the surface of the shielding film is prone to static electricity, it is very easy to attract dust, fibers and other impurities from the air during the contact process, resulting in quality problems such as stains and impurity indentations on the surface of the rewound product. Therefore, a rewinding equipment for shielding film production is needed. Utility Model Content

[0004] The purpose of this invention is to provide a rewinding device for producing shielding film, which solves the problems mentioned in the background art.

[0005] This application provides a rewinding device for producing shielding film, including a base. A motor is fixedly connected to one outer wall of the base. The output shaft of the motor passes through the interior of the base and is fixedly connected to a lead screw via a coupling. A slider is threaded onto the lead screw. A vertical plate is fixedly connected to the top of the slider. A motor is fixedly connected to the rear wall of the vertical plate. The output shaft of the motor passes through the vertical plate and is fixedly connected to a guide roller. An exhaust hole is formed on the outer wall of the guide roller. A cavity is formed inside the guide roller and communicates with the exhaust hole. A support plate is fixedly connected to the front wall of the vertical plate. The support plate is located below the guide roller. An electric push rod is fixedly passed through the support plate. A mounting plate is fixedly connected to the end face of the piston rod of the electric push rod. A brush is fixedly connected to the top of the mounting plate. An air pump is fixedly connected to the front wall of the base. A connecting pipe is fixedly connected to the exhaust end of the air pump. The connecting pipe is rotatably connected to the guide roller via a rotary joint.

[0006] In operation, the unwinding and rewinding rollers rotate under the drive of the electric motor. The unwinding roller releases the air while the rewinding roller rewinds, achieving rewinding of the shielding film. During rewinding, the air pump is activated. The airflow generated by the pump enters the inner cavity of the guide roller through the connecting pipe and is discharged through the exhaust hole, forming a stable air film. This air film provides flexible support, offering uniform lifting force to maintain a stable transmission height and path for the shielding film. It also reduces the direct contact area between the shielding film and the guide roller, fundamentally reducing static electricity generated by solid friction and significantly decreasing the probability of dust and impurities adsorption. This effectively prevents stains or impurity indentations from appearing on the product surface. Simultaneously, when the motor drives the lead screw to rotate, it can... The slider converts rotational motion into linear motion, enabling flexible adjustment of the axial position of the guide roller. This ensures that the air film always acts on the central area of ​​the shielding film, guaranteeing support stability. When cleaning the guide roller is required, the device must be in a stopped state. The electric push rod is then activated, driving the brush to rise until it contacts the guide roller. The motor is then activated, driving the guide roller to rotate and generate friction with the brush, cleaning the surface of the guide roller and preventing clogging of the vent holes. Through the synergistic effect of the above structures, the device achieves stable transmission of the shielding film while forming a closed-loop protection from three dimensions: contact isolation, electrostatic suppression, and active cleaning, significantly improving the surface quality of the rewound product.

[0007] Optionally, a first mounting frame and a second mounting frame are respectively installed on the top two sides of the base. The unwinding roller is rotatably connected inside the second mounting frame, and the winding roller is rotatably connected inside the first mounting frame.

[0008] By adopting the above technical solution, the shielding film can be rewound through the release of the unwinding roller and the winding of the take-up roller.

[0009] Optionally, the length of the mounting plate is the same as the length of the guide roller.

[0010] By adopting the above technical solution, it is beneficial to clean the guide rollers more thoroughly.

[0011] Optionally, the brush is provided in two sets, and the two sets of brushes are arranged symmetrically on the left and right sides. The brush is made of nylon material.

[0012] By adopting the above technical solution, the cleaning effect on the guide rollers has been further improved.

[0013] Optionally, both the take-up roller and the unwind roller have an H-shaped vertical cross-section.

[0014] By adopting the above technical solution, a rigid constraint can be formed on the edge of the shielding film, avoiding axial deviation caused by tension fluctuations, equipment vibration or the film's own eccentricity during unwinding and rewinding.

[0015] Optionally, the top of the base is provided with a groove along the length direction that is adapted to the slider.

[0016] By adopting the above technical solution, it is beneficial for the normal sliding of the slider.

[0017] Optionally, the connecting pipe is made of rubber.

[0018] By adopting the above technical solution, the bending deformation of the connecting pipe is reduced, so as not to affect the movement and adjustment of the guide roller.

[0019] Optionally, the diameter of the vent hole is 0.3-0.8 mm.

[0020] By adopting the above technical solution, a stable airflow can be formed, preventing the shielding membrane from shaking up and down.

[0021] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0022] In this application's technical solution, the airflow generated by the air pump enters the inner cavity of the guide roller through the connecting pipe and is discharged through the exhaust hole to form a stable air film. The air film acts as a flexible support, providing uniform lifting force to the shielding film to maintain a stable transmission height and path. It also reduces the direct contact area between the shielding film and the guide roller, thereby reducing the amount of static electricity generated by solid friction at the source and significantly reducing the probability of dust and impurities adsorption. This effectively avoids stains or impurity indentations on the product surface. At the same time, when the motor drives the lead screw to rotate, the rotational motion can be converted into linear motion through the slider, realizing flexible adjustment of the axial position of the guide roller. This ensures that the air film always acts on the central area of ​​the shielding film, guaranteeing support stability. The electric push rod can also drive the brush to rise, so that the brush contacts the guide roller. Then, the motor drives the guide roller to rotate and generate friction with the brush, which can clean the surface of the guide roller and also prevent the exhaust hole from being blocked. Through the synergistic effect of the above structures, the device achieves stable transmission of the shielding film while forming a closed-loop protection from three dimensions: contact isolation, static electricity suppression, and active cleaning, significantly improving the surface quality of the rewound product. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a rewinding device for producing shielding film according to this utility model;

[0025] Figure 2 This is a side view of a rewinding device for producing shielding film according to the present invention.

[0026] Figure 3 for Figure 1A magnified schematic diagram of the local structure of region A;

[0027] Figure 4 This is a schematic diagram of the structure of the guide roller of a rewinding device for producing shielding film according to this utility model;

[0028] In the diagram: 1. Base; 2. First mounting frame; 3. Take-up roller; 4. Lead screw; 5. Slider; 6. Vertical plate; 7. Motor; 8. Support plate; 9. Exhaust hole; 10. Guide roller; 11. Unwind roller; 12. Second mounting frame; 13. Connecting pipe; 14. Air pump; 15. Electric push rod; 16. Mounting plate; 17. Brush; 18. Motor; 19. Cavity. Detailed Implementation

[0029] Please see Figure 1-4 This utility model provides a technical solution: a rewinding device for producing shielding film, including a base 1. A motor 18 is fixedly connected to one outer wall of the base 1. The output shaft of the motor 18 passes through the interior of the base 1 and is fixedly connected to a lead screw 4 via a coupling. A slider 5 slides threadedly on the lead screw 4. A vertical plate 6 is fixedly connected to the top of the slider 5. A motor 7 is fixedly connected to the rear wall of the vertical plate 6. The output shaft of the motor 7 passes through the vertical plate 6 and is fixedly connected to a guide roller 10. An exhaust hole 9 is provided on the outer wall of the guide roller 10. The interior of the guide roller 10 has a cavity 19, which is connected to the exhaust port 9. A support plate 8 is fixedly connected to the front wall of the vertical plate 6. The support plate 8 is located below the guide roller 10. An electric push rod 15 is fixedly inserted through the support plate 8. An mounting plate 16 is fixedly connected to the end face of the piston rod of the electric push rod 15. A brush 17 is fixedly connected to the top of the mounting plate 16. An air pump 14 is fixedly connected to the front wall of the base 1. A connecting pipe 13 is fixedly connected to the exhaust end of the air pump 14. The connecting pipe 13 is rotatably connected to the guide roller 10 through a rotary joint.

[0030] In the technical solution of this utility model, a first mounting frame 2 and a second mounting frame 12 are respectively installed on the top two sides of the base 1. The unwinding roller 11 is rotatably connected inside the second mounting frame 12, and the winding roller 3 is rotatably connected inside the first mounting frame 2. The shielding film can be rewound by the release of the unwinding roller 11 and the winding of the winding roller 3.

[0031] In the technical solution of this utility model, the length of the mounting plate 16 is the same as the length of the guide roller 10; this facilitates a more comprehensive cleaning of the guide roller 10.

[0032] In the technical solution of this utility model, two sets of brushes 17 are provided, and the two sets of brushes 17 are arranged symmetrically on the left and right sides. The brushes 17 are made of nylon material, which further improves the cleaning effect on the guide roller 10.

[0033] In the technical solution of this utility model, the vertical cross-section of both the take-up roller 3 and the unwind roller 11 is H-shaped; this can form a rigid constraint on the edge of the shielding film, avoiding axial deviation caused by tension fluctuations, equipment vibration or the film's own eccentricity during the unwinding and take-up processes.

[0034] In the technical solution of this utility model, the top of the base 1 is provided with a groove along the length direction that is adapted to the slider 5; this facilitates the normal sliding of the slider 5.

[0035] In the technical solution of this utility model, the connecting pipe 13 is made of rubber material; this is beneficial for the bending and deformation of the connecting pipe 13, so as not to affect the movement and adjustment of the guide roller 10.

[0036] In the technical solution of this utility model, the diameter of the exhaust hole 9 is 0.3-0.8mm; it can form a stable airflow and prevent the shielding film from shaking up and down.

[0037] In use, the unwinding roller 11 and the take-up roller 3 are rotated under the drive of the motor. The unwinding roller 11 releases and the take-up roller 3 rewinds the shielding film, achieving rewinding. During rewinding, the air pump 14 is activated. The airflow generated by the air pump 14 enters the inner cavity 19 of the guide roller 10 through the connecting pipe 13 and is discharged through the exhaust hole 9, forming a stable air film. This air film provides flexible support, offering uniform lifting force to maintain a stable transmission height and path, while also reducing the direct contact area between the shielding film and the guide roller 10. This reduces static electricity generated by solid friction, significantly decreasing the probability of dust and impurities adsorption and effectively preventing stains or impurity indentations on the product surface. Simultaneously, when the motor 18 drives the lead screw 4 to rotate, it can... The slider 5 converts rotational motion into linear motion, enabling flexible adjustment of the axial position of the guide roller 10. This ensures that the air film always acts on the central area of ​​the shielding film, guaranteeing support stability. When cleaning the guide roller 10 is required, the device must be in a stopped state. The electric push rod 15 is then activated, driving the brush 17 to rise until it contacts the guide roller 10. Then, the motor 7 is activated, driving the guide roller 10 to rotate and generate friction with the brush 17. This cleans the surface of the guide roller 10 and prevents the vent hole 9 from becoming blocked. Through the synergistic effect of the above structures, the device achieves stable transmission of the shielding film while forming a closed-loop protection from three dimensions: contact isolation, electrostatic suppression, and active cleaning, significantly improving the surface quality of the rewound product.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rewinding device for producing shielding film, characterized in that: The system includes a base (1), on which a motor (18) is fixedly connected to one outer wall. The output shaft of the motor (18) passes through the interior of the base (1) and is fixedly connected to a lead screw (4) via a coupling. A slider (5) is threaded onto the lead screw (4). A vertical plate (6) is fixedly connected to the top of the slider (5). A motor (7) is fixedly connected to the rear wall of the vertical plate (6). The output shaft of the motor (7) passes through the vertical plate (6) and is fixedly connected to a guide roller (10). An exhaust hole (9) is provided on the outer wall of the guide roller (10), and a cavity (19) is provided inside the guide roller (10). The cavity (19) is connected to the exhaust hole (9). A support plate (8) is fixedly connected to the front wall of the vertical plate (6). The support plate (8) is located below the guide roller (10). An electric push rod (15) is fixedly inserted on the support plate (8). An mounting plate (16) is fixedly connected to the end face of the piston rod of the electric push rod (15). A brush (17) is fixedly connected to the top of the mounting plate (16). An air pump (14) is fixedly connected to the front wall of the base (1). A connecting pipe (13) is fixedly connected to the exhaust end of the air pump (14). The connecting pipe (13) is rotatably connected to the guide roller (10) through a rotary joint.

2. The rewinding device for producing shielding film according to claim 1, characterized in that, The base (1) has a first mounting frame (2) and a second mounting frame (12) installed on its two top sides respectively. The second mounting frame (12) is rotatably connected to an unwinding roller (11), and the first mounting frame (2) is rotatably connected to a winding roller (3).

3. The rewinding device for producing shielding film according to claim 1, characterized in that, The length of the mounting plate (16) is the same as the length of the guide roller (10).

4. The rewinding device for producing shielding film according to claim 1, characterized in that, There are two sets of brushes (17), which are arranged symmetrically on the left and right sides. The brushes (17) are made of nylon material.

5. A rewinding device for producing shielding film according to claim 2, characterized in that, The vertical cross-sections of the take-up roller (3) and the unwind roller (11) are both H-shaped.

6. The rewinding device for producing shielding film according to claim 1, characterized in that, The top of the base (1) has a groove along the length direction that is adapted to the slider (5).

7. A rewinding device for producing shielding film according to claim 1, characterized in that, The connecting pipe (13) is made of rubber.

8. A rewinding device for producing shielding film according to claim 1, characterized in that, The diameter of the exhaust port (9) is 0.3-0.8 mm.

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