A thin film surface static electricity eliminating device

Abstract

The utility model belongs to film static electricity elimination technical field, concretely speaking it is a kind of film surface static electricity elimination device, including: work bench, the bottom four corners of work bench are fixedly connected with support leg, the side of work bench is installed with PLC controller, the upper surface of work bench is fixedly connected with two groups of first support frame, and two groups of first support frame are rotatably connected with material discharging roller;Through first drive motor, drive two-way screw rod to rotate, cooperate with infrared range finder, adjust the distance between two groups of hollow rollers, make the distance between two groups of hollow rollers and different material film static electricity elimination match, for high barrier film static electricity elimination, the distance between two groups of hollow rollers is smaller, for the static electricity elimination of breathable film, the distance between two groups of hollow rollers is larger, so that the device can be used according to the film static electricity elimination of different materials, and the effect of static electricity elimination of different material film can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of thin film static elimination technology, specifically a thin film surface static elimination device. Background Technology

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It is used for packaging and as a coating layer. Plastic film needs to go through multiple color printing in a color printing machine. In this process, a lot of static electricity will be generated on the surface of the plastic film. When workers move rolls of plastic film, static electricity can easily cause injury and pain to the workers' hands. Therefore, a static electricity elimination device for the film surface is needed.

[0003] A Chinese patent with authorization announcement number CN216673369U discloses a static electricity elimination device for the surface of a plastic film, including a placement plate. The upright plate is fixedly installed on the upper right side of the placement plate. The outlet end of the ion fan is connected to a fixed hose, and the outlet end of the hose is fixedly connected to a fan duct. This allows the static electricity elimination device for the surface of the plastic film to fully contact the static ions with the surface charge of the plastic film, thus eliminating static electricity more thoroughly.

[0004] However, the above solutions still have some problems. High-barrier films need to have a smaller spacing to enhance the electric field, while breathable films need to have a larger spacing to prevent adhesion. The position of the ion fan is fixed, which makes the device unsuitable for films of different materials, thus reducing the application scenarios of the device. Therefore, a film surface electrostatic elimination device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a thin film surface electrostatic elimination device.

[0006] The technical solution adopted by this utility model to solve its technical problem is a film surface static elimination device, including: a worktable, with support legs fixedly connected to the four corners of the bottom of the worktable, a PLC controller installed on one side of the worktable, two sets of first support frames fixedly connected to the upper surface of the worktable, a feeding roller rotatably connected between the two sets of first support frames, two sets of second support frames fixedly connected to the upper surface of the worktable, each of the two sets of second support frames having a sliding groove on one side, a first drive motor installed on the upper surface of the second support frame, a bidirectional threaded rod fixedly connected to the output end of the first drive motor, one end of the bidirectional threaded rod rotatably connected to the inside of the second support frame, and the other end of the bidirectional threaded rod rotatably connected to the inside of the worktable, with two sets of adjusting blocks threadedly connected to each of the two sets of bidirectional threaded rods, and the film that has not been statically eliminated is rolled up on the feeding roller, thereby avoiding the film from becoming disordered and wrinkled during the film transmission process.

[0007] Preferably, a first connecting block is fixedly connected to one side of each of the two sets of adjusting blocks, and a second connecting block is fixedly connected to one side of each of the two sets of adjusting blocks. The two sets of first connecting blocks and the two sets of second connecting blocks are slidably connected inside the slide groove. The bidirectional threaded rod rotates, thereby adjusting the height of the adjusting blocks and changing the distance between the two sets of adjusting blocks.

[0008] Preferably, an infrared rangefinder is installed at the bottom of one set of the second connecting blocks, and a second drive motor is installed on one side of the second connecting block. A hollow roller is fixedly connected to the output end of the second drive motor. When the second drive motor runs, it can drive the two sets of hollow rollers to rotate, thereby transmitting power to the film. The relative movement between the roller surface and the film during rotation can enhance charge transfer, thereby improving the static elimination quality of the film surface.

[0009] Preferably, one end of the hollow roller is rotatably connected to the inside of the second connecting block, and an air outlet is provided on the hollow roller. The other end of the hollow roller is rotatably connected to the inside of the first connecting block, and a rotary joint is installed at the other end of the hollow roller. One end of the hollow roller is connected to the ion fan through the rotary joint, so that the electrostatic ions blown out by the ion fan can still enter the hollow roller during use.

[0010] Preferably, an ion fan is installed on one side of the first connecting block, and the output end of the ion fan is connected to the rotary joint. An oil storage cotton is provided inside the first connecting block. When one end of the hollow roller rotates, it comes into contact with the ball bearing, thereby driving the ball bearing to rotate. The ball bearing passes over the surface of the oil storage cotton, thereby applying lubricating oil to its surface. This makes the other end of the hollow roller rotate more smoothly, thus avoiding the situation where the hollow roller is stuck when rotating due to different forces at both ends.

[0011] Preferably, the first connecting block has a ball bearing rotatably connected inside, the ball bearing being in contact with the oil-collecting cotton. The PLC controller is used to control the start and stop of the first drive motor, the second drive motor, the ion fan, and the infrared rangefinder. By controlling the start and stop of the first drive motor, the second drive motor, the ion fan, and the infrared rangefinder through the PLC controller, the device becomes more convenient to use.

[0012] The advantages of this invention are as follows: the first drive motor drives the bidirectional threaded rod to rotate, which, in conjunction with the infrared rangefinder, adjusts the distance between the two sets of hollow rollers. This distance is matched to the static elimination of films of different materials. For static elimination of high-barrier films, the distance between the two sets of hollow rollers is smaller, while for static elimination of breathable films, the distance is larger. This allows the device to be used for static elimination of films of different materials and improves the static elimination effect on films of different materials.

[0013] During the static elimination process of this invention, the airflow inside the hollow roller can discharge the charged particles generated by the ion blower outward through the air outlet on the roller surface, forming a high-concentration ion environment at the contact surface between the film and the roller, thereby enhancing the charge neutralization efficiency. Furthermore, both sets of hollow rollers are driven to rotate by the second drive motor, which can drive the film located between them to perform transmission. The relative motion between the roller surface and the film during rotation can enhance charge transfer, thereby improving the static elimination quality of the film surface. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 This is a schematic diagram of the overall structure; Figure 2 This is a schematic diagram of the workbench; Figure 3 This is a schematic diagram of the adjustment components; Figure 4 This is a schematic diagram of a hollow roller; Figure 5 This is a schematic cross-sectional view of the first connecting block.

[0016] In the diagram: 1. Workbench; 2. Support leg; 3. PLC controller; 4. First support frame; 5. Feeding roller; 6. Second support frame; 7. Slide groove; 8. First drive motor; 9. Bidirectional threaded rod; 10. First connecting block; 11. Second connecting block; 12. Infrared rangefinder; 13. Second drive motor; 14. Hollow roller; 15. Air outlet; 16. Rotary joint; 17. Ionizing fan; 18. Oil storage cotton; 19. Ball bearing; 20. Adjusting block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5As shown, a thin film surface static elimination device includes: a worktable 1, with support legs 2 fixedly connected to the four corners of the bottom of the worktable 1; a PLC controller 3 installed on one side of the worktable 1; two sets of first support frames 4 fixedly connected to the upper surface of the worktable 1; a feeding roller 5 rotatably connected between the two sets of first support frames 4; two sets of second support frames 6 fixedly connected to the upper surface of the worktable 1; a sliding groove 7 is provided on one side of each of the two sets of second support frames 6; a first drive motor 8 is installed on the upper surface of the second support frame 6; a bidirectional threaded rod 9 is fixedly connected to the output end of the first drive motor 8; and one end of the bidirectional threaded rod 9 is rotatably connected to a sub-drive motor 8. Inside the second support frame 6, the other end of the bidirectional threaded rod 9 is rotatably connected to the inside of the workbench 1. Two sets of adjusting blocks 20 are threadedly connected to the two sets of bidirectional threaded rods 9. A first connecting block 10 is fixedly connected to one side of each set of adjusting blocks 20. A second connecting block 11 is fixedly connected to one side of each set of adjusting blocks 20. The two sets of first connecting blocks 10 and the two sets of second connecting blocks 11 are slidably connected inside the slide groove 7. An infrared rangefinder 12 is installed at the bottom of one set of second connecting blocks 11. A second drive motor 13 is installed on one side of the second connecting block 11. A hollow roller 14 is fixedly connected to the output end of the second drive motor 13. Plastic film needs to undergo multiple color printing processes in a color printing machine. During this process, a large amount of static electricity is generated on the surface of the plastic film. When workers handle rolls of plastic film, the static discharge can easily cause hand injuries and pain. Therefore, a static electricity elimination device for the film surface is needed. In actual use, the film with undischarged static electricity is placed between two sets of hollow rollers 14. Then, the distance between the two sets of hollow rollers 14 is adjusted according to the film material. The infrared rangefinder 12 is activated by the PLC controller 3. The infrared rangefinder 12 can measure the distance between the two sets of second connecting blocks 11. At the same time, the two sets of first drive motors 8 are activated by the PLC controller 3, driving the two sets of bidirectional threaded rods 9 synchronously. The rotation of the two sets of adjusting blocks 20, with their internal threads being opposite and matching the threads on the bidirectional threaded rod 9, allows the distance between the two sets of adjusting blocks 20 and the hollow roller 14 to be adjusted. When the distance measured by the infrared rangefinder 12 reaches a distance that matches the film material, the first drive motor 8 is turned off, fixing the distance between the two sets of hollow rollers 14. For static elimination of high-barrier films, the distance between the two sets of hollow rollers 14 is smaller; for static elimination of breathable films, the distance between the two sets of hollow rollers 14 is larger. This allows the device to be used for static elimination of films of different materials and improves the effect of static elimination on films of different materials.

[0019] Please see Figure 1-5As shown, one end of the hollow roller 14 is rotatably connected to the inside of the second connecting block 11. An air outlet 15 is provided on the hollow roller 14. The other end of the hollow roller 14 is rotatably connected to the inside of the first connecting block 10, and a rotary joint 16 is installed on the other end of the hollow roller 14. An ion fan 17 is installed on one side of the first connecting block 10. The output end of the ion fan 17 is connected to the rotary joint 16. An oil storage cotton 18 is provided inside the first connecting block 10. A ball bearing 19 is rotatably connected inside the first connecting block 10. The ball bearing 19 is in contact with the oil storage cotton 18. The PLC controller 3 is used to control the start and stop of the first drive motor 8, the second drive motor 13, the ion fan 17, and the infrared rangefinder 12. The second drive motor 13 is started by the PLC controller 3, which drives the hollow roller 14 to rotate. At the same time, the ion fan 17 is started by the PLC controller 3 to blow out electrostatic ions, neutralizing the charged charge on the plastic film, thereby achieving the effect of static elimination. During the static elimination process, the airflow inside the hollow roller 14 can conduct the charged particles generated by the ion fan 17 outward through the air outlet 15 on the roller surface, forming a high-concentration ion environment at the contact surface between the film and the roller, thereby enhancing the charge neutralization efficiency. Both sets of hollow rollers 14 are driven by the second drive motor 13 to rotate, which can drive the film located between them. The film is driven to avoid film accumulation between the two sets of hollow rollers 14. The relative movement between the roller surface and the film during rotation can enhance charge transfer, thereby improving the quality of static elimination on the film surface. One end of the hollow roller 14 is driven by the second drive motor 13, and the other end is located in the first connecting block 10. The friction generated during rotation drives the ball bearing 19 to rotate, so that the ball bearing 19 passes over the surface of the oil storage cotton 18, thereby applying lubricating oil to its surface. This makes the other end of the hollow roller 14 rotate more smoothly, thus avoiding the situation where the hollow roller 14 is stuck when rotating due to different forces at both ends.

[0020] The working principle is as follows: A film with undischarged static electricity is placed between two sets of hollow rollers 14. The infrared rangefinder 12 is activated via the PLC controller 3, measuring the distance between the two sets of second connecting blocks 11. Simultaneously, the PLC controller 3 activates two sets of first drive motors 8, driving two sets of bidirectional threaded rods 9 to rotate synchronously, adjusting the distance between the two sets of adjusting blocks 20 and the hollow rollers 14. When the distance measured by the infrared rangefinder 12 reaches a distance matching the film material, the first drive motors 8 are turned off. The distance between the two sets of hollow rollers 14 is fixed. The second drive motor 13 is started by the PLC controller 3 to drive the hollow rollers 14 to rotate. At the same time, the ion fan 17 is started by the PLC controller 3 to blow out electrostatic ions to neutralize the charged charge on the plastic film, thereby achieving the effect of static elimination. Both sets of hollow rollers 14 are driven by the second drive motor 13 to rotate, which can drive the film located between them to move, avoiding the film from accumulating between the two sets of hollow rollers 14. The relative movement between the roller surface and the film during rotation can enhance charge transfer.

[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for eliminating static electricity on a thin film surface, characterized in that: include: The workbench (1) has four fixed support legs (2) at the bottom corners. A PLC controller (3) is installed on one side of the workbench (1). Two sets of first support frames (4) are fixedly connected to the upper surface of the workbench (1). A feeding roller (5) is rotatably connected between the two sets of first support frames (4). Two sets of second support frames (6) are fixedly connected to the upper surface of the workbench (1). A sliding groove (7) is opened on one side of each of the two sets of second support frames (6). A first drive motor (8) is installed on the upper surface of the second support frame (6). A bidirectional threaded rod (9) is fixedly connected to the output end of the first drive motor (8). One end of the bidirectional threaded rod (9) is rotatably connected to the inside of the second support frame (6). The other end of the bidirectional threaded rod (9) is rotatably connected to the inside of the workbench (1). Two sets of adjusting blocks (20) are threadedly connected to each of the two sets of bidirectional threaded rods (9).

2. The electrostatic elimination device for thin film surfaces according to claim 1, characterized in that: One side of each of the two sets of adjustment blocks (20) is fixedly connected to a first connecting block (10), and one side of each of the two sets of adjustment blocks (20) is fixedly connected to a second connecting block (11). The two sets of first connecting blocks (10) and the two sets of second connecting blocks (11) are slidably connected inside the slide groove (7).

3. The electrostatic elimination device for thin film surfaces according to claim 2, characterized in that: An infrared rangefinder (12) is installed at the bottom of a set of second connecting blocks (11), and a second drive motor (13) is installed on one side of the second connecting blocks (11). A hollow roller (14) is fixedly connected to the output end of the second drive motor (13).

4. The electrostatic elimination device for a thin film surface according to claim 3, characterized in that: One end of the hollow roller (14) is rotatably connected to the inside of the second connecting block (11). An air outlet (15) is provided on the hollow roller (14). The other end of the hollow roller (14) is rotatably connected to the inside of the first connecting block (10). A rotary joint (16) is installed on the other end of the hollow roller (14).

5. The electrostatic elimination device for a thin film surface according to claim 2, characterized in that: An ion fan (17) is installed on one side of the first connecting block (10), and the output end of the ion fan (17) is connected to the rotary joint (16). An oil storage cotton (18) is provided inside the first connecting block (10).

6. The electrostatic elimination device for a thin film surface according to claim 2, characterized in that: The first connecting block (10) has a ball bearing (19) rotatably connected inside. The ball bearing (19) is in contact with the oil storage cotton (18). The PLC controller (3) is used to control the start and stop of the first drive motor (8), the second drive motor (13), the ion fan (17), and the infrared rangefinder (12).

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