Electrostatic elimination mechanism for a rewinding machine

Abstract

The utility model relates to the technical field of film rewinding, and relates to a static electricity elimination mechanism for rewinding machine, include: mounting seat, assembly seat and static electricity scraping strip, the mounting seat includes seat body, the adjusting screw rod of rotation setting on the seat body, one end of assembly seat is with Adjusting screw rod screw connection and is provided with assembly groove in another end, the static electricity scraping strip includes scraping strip frame, sets up the brush in the lower extreme of scraping strip frame and sets up the electrically conductive part in scraping strip frame, scraping strip frame side end can insert setting in the assembly groove, the electrically conductive part, scraping strip frame and scraping strip frame electric connection. The utility model through adjusting screw rod can according to the film thickness flexible adjustment brush and the distance of film surface, cooperation horizontal adjustment slide rail realizes the accurate adaptation of mechanism horizontal position, satisfies the rewinding demand of different width, thickness film.

Description

Technical Field

[0001] This utility model relates to the field of film rewinding technology, and specifically to an electrostatic elimination mechanism for a rewinding machine. Background Technology

[0002] During the film rewinding process, the contact friction between the film and the rubber roller surface, as well as the interface separation when the double film peels off the PE layer, all generate a large amount of static electricity. When the static electricity accumulates to a certain amount of energy, it can easily break down the film, leading to problems such as insufficient water pressure in subsequent processing. This directly affects the physical properties of the film after lamination, making it unable to meet quality standards.

[0003] Existing static electricity elimination methods have significant drawbacks: when using humidifiers to reduce static electricity by increasing ambient humidity, excessive moisture can negatively impact the quality of rewound products (such as film surface dampness and adhesion); while using traditional static brushes with ordinary supports can guide static grounding through the brush bristles, the support's conductivity is insufficient, and the distance between the brush bristles and the film surface cannot be flexibly adjusted according to film thickness, resulting in incomplete static electricity elimination and the risk of residual charge damaging the film. Furthermore, some equipment relies on air or water sources for auxiliary static electricity removal, which not only increases equipment complexity and energy consumption but also raises maintenance costs, making it difficult to meet the needs of large-scale production. Utility Model Content

[0004] This invention addresses the problems of the prior art by providing an electrostatic elimination mechanism for a rewinding machine.

[0005] The objective of this utility model can be achieved through the following technical solution: an electrostatic elimination mechanism for a rewinding machine, comprising: a mounting base, an assembly base, and an electrostatic scraper. The mounting base includes a base body and an adjusting threaded rod rotatably mounted on the base body. One end of the assembly base is threadedly connected to the adjusting threaded rod, and the other end is provided with an assembly groove. The electrostatic scraper includes a scraper frame, bristles disposed at the lower end of the scraper frame, and a conductive element disposed on the scraper frame. The side end of the scraper frame can be inserted into the assembly groove. The conductive element, the scraper frame, and the scraper frame are electrically connected.

[0006] In a further improvement, the conductive component includes a wire and connecting ends disposed at both ends of the wire, wherein one set of the connecting ends is fixedly connected to the scraper frame by bolts, and the other set of connecting ends is grounded.

[0007] In a further improvement, a limiting strip is provided at the lower end of the scraper frame, and the limiting strip is located at both ends of the brush bristles and is bolted to the scraper frame.

[0008] In a further improvement, the upper end of the adjusting threaded rod is provided with a radially protruding limiting rotating post, and a rotating handle is detachably sleeved on the limiting rotating post. The inner wall of the rotating handle and the limiting rotating post form a circumferential limiting fit.

[0009] In a further improvement, the bottom of the seat is provided with a horizontal adjustment slide rail, on which a positioning slider is slidably mounted. The seat is slidably mounted on the horizontal adjustment slide rail via the positioning slider, and a locking bolt is provided at its upper end.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This utility model allows for flexible adjustment of the distance between the brush bristles and the film surface according to the film thickness by adjusting the threaded rod. Combined with the lateral adjustment slide rail, it achieves precise adaptation of the lateral position of the mechanism, meeting the rewinding requirements of films of different widths and thicknesses.

[0012] 2. The conductive component of this utility model adopts a bolt-fixed connection end to ensure smooth electrostatic conduction path and avoid poor contact caused by vibration. The flexible wire can adapt to the adjustment action of the mechanism. The limit strip effectively prevents the bristles from deforming and extends the service life. The detachable design of each component simplifies the maintenance process and reduces the later operation and maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the electrostatic scraper of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the mounting base of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure during installation of this utility model;

[0017] Figure 5 This is a schematic diagram of another embodiment of the present invention.

[0018] In the diagram, 1 is the mounting base; 11 is the base body; 12 is the adjusting threaded rod; 121 is the limiting rotating column; 122 is the rotating handle; 2 is the assembly base; 21 is the assembly slot; 3 is the electrostatic scraper; 31 is the scraper frame; 311 is the limiting strip; 32 is the brush bristles; 33 is the conductive component; 331 is the wire; 332 is the connecting end; 41 is the lateral adjusting slide rail; and 42 is the locking bolt. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The following is a description of the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0022] Example 1

[0023] An electrostatic elimination mechanism for a rewinding machine includes: a mounting base 1, an assembly base 2, and an electrostatic scraper 3. The mounting base 1 includes a base body 11 and an adjusting threaded rod 12 rotatably mounted on the base body 11. One end of the assembly base 2 is threadedly connected to the adjusting threaded rod 12, and the other end is provided with an assembly groove 21. The electrostatic scraper 3 includes a scraper frame 31, bristles 32 disposed at the lower end of the scraper frame 31, and a conductive element 33 disposed on the scraper frame 31. The side end of the scraper frame 31 can be inserted into the assembly groove 21. The conductive element 33, the scraper frame 31, and the scraper frame 31 are electrically connected.

[0024] like Figures 1-5 As shown, in actual use, the mounting base 1 is first fixed on the frame between the two rubber drive rollers of the rewinding machine, ensuring that the length of the electrostatic scraper 3 is consistent with the width of the film surface. Based on the thickness of the film to be rewound, the handwheel of the adjusting threaded rod 12 is rotated, causing the mounting base 2 to lower the electrostatic scraper 3 until the distance between the brush bristles 32 and the film surface reaches the set distance. At this point, the brush bristles 32 contact the film surface without causing physical compression. During rewinding, the film is continuously transferred between the two rubber drive rollers. During this process, due to the contact friction between the film and the rubber roller surface, or the interface separation during the peeling of the double-layer film (TPU and PE), a large amount of static electricity is generated. This static electricity is then quickly conducted through the film surface to the brush bristles 32. Because the brush bristles 32, the scraper frame 31, and the conductive component 33 maintain a good electrical connection, the charge is transferred along the scraper frame 31 to the conductive component 33, and finally directly conducted to the ground through the grounding wire connected to the conductive component 33, achieving real-time and efficient elimination of static electricity on the film surface.

[0025] As a further preferred embodiment, the conductive element 33 includes a wire 331 and connection ends 332 disposed at both ends of the wire 331, wherein one set of the connection ends 332 is fixedly connected to the scraper frame 31 by bolts, and the other set of connection ends 332 is grounded.

[0026] Specifically, the bolted connection end 332 forms a rigid electrical connection with the scraper frame 31. Compared with the traditional snap-fit ​​connection, the contact resistance is smaller, which can avoid the interruption of conductivity caused by vibration and ensure the continuous smooth conduction path of electrostatics. The bolted connection of the connection end 332 is easy to disassemble. When the wire 331 ages or the scraper frame 31 is replaced, the conductive part 33 can be separated simply by loosening the bolts, without the need for overall replacement, simplifying the maintenance process. The flexible wire 331 can adapt to the positional changes when the threaded rod 12 drives the electrostatic scraper 3 to rise and fall, avoiding the wire being pulled by force. At the same time, the grounding connection method is compatible with the grounding structure of different rewinding machines, improving the versatility of the mechanism.

[0027] As a further preferred embodiment, the lower end of the scraper frame 31 is provided with a limiting strip 311, which is provided at both ends of the bristles 32 and is bolted to the scraper frame 31.

[0028] Specifically, the height of the limiting strip 311 is slightly lower than the length of the bristles 32, ensuring that it does not contact the film surface and only serves to limit the bristles at both ends.

[0029] During the rewinding process, lateral deviation may occur during film transport. The limiting strip 311 can prevent the ends of the bristles 32 from tilting or spreading out due to force, maintaining the overall arrangement density and contact angle of the bristles, and ensuring a uniform and stable adsorption effect on the electrostatics of the film surface. At the same time, it can prevent the bristle ends from becoming loose or broken due to long-term friction or collision. By limiting and fixing, unnecessary wear of the bristles is reduced, and their replacement cycle is extended.

[0030] As a further preferred embodiment, the upper end of the adjusting threaded rod 12 is provided with a radially protruding limiting rotating post 121, and a rotating handle 122 is detachably sleeved on the limiting rotating post 121. The inner wall of the rotating handle 122 and the limiting rotating post 121 form a circumferential limiting fit.

[0031] Specifically, a rotating handle 122 is detachably fitted onto the limiting rotating column 121. The rotating handle 122 is a cylindrical sleeve (the inner wall is machined to match the shape of the limiting rotating column 121), and the outer circumferential surface of the sleeve is provided with anti-slip texture (such as knurling). During assembly, the limiting hole of the rotating handle 122 and the limiting structure of the limiting rotating column 121 form a circumferential limiting fit, that is, when the rotating handle 122 rotates, torque can be transmitted through the edges, driving the adjusting threaded rod 12 to rotate synchronously; during disassembly, the rotating handle 122 can be pulled out axially without the need for tools.

[0032] As a further preferred embodiment, the bottom of the seat 11 is provided with a horizontal adjustment slide rail 41, and a positioning slider is slidably mounted on the horizontal adjustment slide rail 41. The seat 11 is slidably mounted on the horizontal adjustment slide rail 41 through the positioning slider, and a locking bolt 42 is provided at its upper end.

[0033] Specifically, such as Figure 5 As shown, a horizontal adjustment slide rail 41 is added to the bottom of the base 11. The slide rail is fixed on the frame along the width direction of the rewinding machine. A positioning slider is fixed to the bottom of the base 11 by bolts. The cross section of the slider matches the slide rail and can slide freely along the length direction of the slide rail to realize the horizontal position adjustment of the base 11 and the entire static elimination mechanism. When the horizontal position is adjusted to the right position, tighten the locking bolt 42 to fix the base 11 by the friction between the bolt end and the slide rail, so as to prevent the position from shifting due to vibration during operation.

[0034] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An electrostatic elimination mechanism for a rewinding machine, characterized in that, include: The mounting base, assembly base, and electrostatic scraper are provided. The mounting base includes a base body and an adjusting threaded rod rotatably mounted on the base body. One end of the assembly base is threadedly connected to the adjusting threaded rod, and the other end is provided with an assembly groove. The electrostatic scraper includes a scraper frame, bristles disposed at the lower end of the scraper frame, and a conductive element disposed on the scraper frame. The side end of the scraper frame can be inserted into the assembly groove. The conductive element, the scraper frame, and the scraper frame are electrically connected.

2. The static elimination mechanism for a rewinding machine according to claim 1, characterized in that, The conductive component includes a wire and connecting ends disposed at both ends of the wire. One set of the connecting ends is fixedly connected to the scraper frame by bolts, and the other set of connecting ends is grounded.

3. The static elimination mechanism for a rewinding machine according to claim 1, characterized in that, The lower end of the scraper frame is provided with a limiting strip, which is located at both ends of the brush bristles and is bolted to the scraper frame.

4. The static elimination mechanism for a rewinding machine according to claim 1, characterized in that, The upper end of the adjusting threaded rod is provided with a radially protruding limiting rotating post, and a rotating handle is detachably sleeved on the limiting rotating post. The inner wall of the rotating handle and the limiting rotating post form a circumferential limiting fit.

5. The static elimination mechanism for a rewinding machine according to claim 1, characterized in that, The bottom of the base is provided with a horizontal adjustment slide rail, and a positioning slider is slidably mounted on the horizontal adjustment slide rail. The base is slidably mounted on the horizontal adjustment slide rail via the positioning slider, and a locking bolt is provided at its upper end.

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