Electrostatic dust collection mechanism for preparing degradable composite film
By combining the electrostatic elimination mechanism and the dust collection mechanism, the problem of dust removal in humid environments was solved, achieving efficient dust removal during the composite membrane preparation process and improving production efficiency.
Patent Information
- Application Number
- CN202520466907.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-18
AI Technical Summary
In humid environments, dust easily absorbs moisture and adheres tightly to the electrostatic dust removal roller, making it difficult for the dust pump to remove it and affecting the dust removal effect in the composite film preparation process.
An electrostatic dust removal system was designed, comprising a U-shaped frame, an electrostatic elimination mechanism, and a dust collection mechanism. The electrostatic elimination mechanism eliminates static electricity on the composite membrane, and the brush and suction components work together to remove dust from the electrostatic dust removal roller. The system combines a synchronous wheel and a motor drive to loosen and remove the dust.
Effective removal of dust from electrostatic dust removal rollers in humid environments ensures efficient dust removal during composite film preparation, improving production efficiency and dust removal effect.
Smart Images

Figure CN223932164U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite membrane dust removal technology, specifically an electrostatic dust removal mechanism for the preparation of biodegradable composite membranes. Background Technology
[0002] Composite membranes are thin films with specific functions or properties, composed of two or more different materials through lamination, blending, or chemical bonding. Traditional composite membranes are difficult to degrade, posing a serious threat to the environment. Biodegradable composite membranes, on the other hand, are thin film materials that can gradually decompose in the natural environment through microbial action or physicochemical processes. They possess the functions and properties of traditional plastics, and at the end of their service life, they can degrade naturally through microbial action or ultraviolet radiation from sunlight, ultimately returning to the ecosystem in a reduced form.
[0003] During the preparation of biodegradable composite films, static electricity is generated, which can attract dust from the air. Therefore, dust in the air is adsorbed onto the composite film. Currently, the main method is to use an electrostatic discharge rod to eliminate static electricity on the composite film, then use an electrostatic dust removal roller to adsorb the dust on the composite film, and finally use a dust pump to suck away the dust adsorbed on the electrostatic dust removal roller. However, in humid environments, dust absorbs moisture from the air, allowing the dust to adhere tightly to the electrostatic dust removal roller, making it difficult for the dust pump to suck away the dust adsorbed on the surface of the electrostatic dust removal roller. Utility Model Content
[0004] The purpose of this invention is to provide an electrostatic dust removal mechanism for the preparation of biodegradable composite films, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An electrostatic dust removal mechanism for preparing biodegradable composite membranes includes:
[0007] A U-shaped frame is detachably connected to the frame of the laminating machine. A round rod is rotatably connected between two opposite sides inside the U-shaped frame, and an electrostatic dust removal roller is fixedly connected to the outer wall of the round rod.
[0008] Two static electricity elimination mechanisms are provided and fixed on the inside sides of the frame respectively, to eliminate static electricity on the composite film;
[0009] A dust collection mechanism, located inside the U-shaped frame and between two electrostatic elimination mechanisms, is used to remove dust adsorbed on the outer wall of the electrostatic dust removal roller. The dust collection mechanism includes a housing fixedly connected between the two ends inside the U-shaped frame and located at the top of the electrostatic dust removal roller. A reciprocating screw is rotatably connected between the two ends inside the housing. A slider is screwed through the outer wall of the reciprocating screw and abuts against the inner wall of the housing. A brush is fixedly connected to the bottom end of the slider and abuts against the electrostatic dust removal roller. A suction assembly is provided at the top of the housing.
[0010] Furthermore, the suction assembly includes a dust suction hood fixedly connected to the top surface of the housing and communicating with the interior of the housing, and a dust suction pump fixedly connected to the top surface of the frame, with the input end of the dust suction pump being fixedly connected to the dust suction hood through a connecting pipe.
[0011] Furthermore, one end of the round rod passes through the side of the C-shaped frame and is fixedly connected to a synchronous pulley one; a C-shaped plate is fixedly connected to one side of the C-shaped frame; a motor is fixedly connected to the side of the C-shaped plate; the output end of the motor passes through the C-shaped plate and is fixedly connected to the round rod; and one end of the reciprocating lead screw passes through the housing and the side of the C-shaped frame and is fixedly connected to a synchronous pulley three, which is driven by a synchronous belt one to the synchronous pulley one.
[0012] Furthermore, the bottom surface of the shell is an arc-shaped structure.
[0013] Furthermore, the static elimination mechanism includes two symmetrical rectangular frames fixedly connected to the inner side of the C-shaped frame. A bidirectional lead screw is rotatably connected between the two ends of the inner side of the rectangular frame. A connecting block is screwed through both ends of the outer wall of the bidirectional lead screw. A static emission rod is rotatably connected between the two connecting blocks at opposite positions via a rotating shaft.
[0014] Furthermore, the top of the bidirectional lead screw is fixedly connected to a connecting rod that rotates through the top surface of the rectangular frame and the mortise-shaped frame at the corresponding position. The top of the outer wall of the connecting rod is fixedly connected to a second synchronous pulley, and the two second synchronous pulleys at opposite positions are connected by a second synchronous belt for transmission.
[0015] Furthermore, the diameter of the electrostatic emission rod is greater than the length and width of the connecting block.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. By rotating the electrostatic dust removal roller, dust can be evenly distributed on the roller. Then, by moving the brush back and forth inside the housing, the dust tightly adhering to the surface of the electrostatic dust removal roller can be loosened, so that the suction component can more easily suck the dust off the roller.
[0018] 2. By rotating the two bidirectional lead screws on the same side of the shaped frame, the two electrostatic emission rods at corresponding positions can be moved closer or further apart, so that the staff can pass the composite film between the two electrostatic emission rods at the opposite positions, and it is also convenient for the electrostatic emission rods to come into contact with the composite film so that the electrostatic emission rods can eliminate static electricity on the composite film. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the U-shaped frame in this utility model;
[0021] Figure 3 This is a schematic diagram of the static electricity elimination mechanism in this utility model;
[0022] Figure 4 This is a schematic diagram of the dust collection mechanism in this utility model.
[0023] In the diagram: 1. C-shaped frame; 11. Electrostatic dust removal roller; 12. Synchronous pulley one; 13. C-shaped plate; 14. Motor; 2. Static elimination mechanism; 21. Rectangular frame; 22. Bidirectional lead screw; 23. Static emission rod; 24. Connecting rod; 25. Synchronous pulley two; 3. Dust collection mechanism; 31. Housing; 32. Reciprocating lead screw; 33. Slider; 34. Brush; 35. Synchronous pulley three; 36. Dust collection hood; 37. Dust collection pump. Detailed Implementation
[0024] 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 protection scope of the present utility model.
[0025] Please see Figure 1 - Figure 4In this embodiment of the present invention, an electrostatic dust removal mechanism for preparing a biodegradable composite film includes a U-shaped frame 1 detachably connected to the frame of a laminating machine. A round rod is rotatably connected between two opposite sides inside the U-shaped frame 1. An electrostatic dust removal roller 11 is fixedly connected to the outer wall of the round rod. An electrostatic elimination mechanism 2 for eliminating static electricity on the composite film is provided on both sides inside the U-shaped frame 1. A dust suction mechanism 3 for sucking away dust adsorbed on the outer wall of the electrostatic dust removal roller 11 is provided inside the U-shaped frame 1 and between the two electrostatic elimination mechanisms 2. The dust suction mechanism 3 includes a housing 31 fixedly connected between the two ends inside the U-shaped frame 1 and located at the top of the electrostatic dust removal roller 11. A reciprocating screw 32 is rotatably connected between the two ends inside the housing 31. A slider 33 is screwed through the outer wall of the reciprocating screw 32 and abuts against the inner wall of the housing 31. A brush 34 abuts against the electrostatic dust removal roller 11 is fixedly connected to the bottom end of the slider 33. A suction assembly is provided at the top of the housing 31.
[0026] Specifically, firstly, the frame 1 is fixed to the frame of the laminating machine with bolts. Then, one end of the composite film is passed through two static elimination mechanisms 2, and the composite film is attached to the bottom end of the electrostatic dust removal roller 11. Then, the static electricity on the composite film is eliminated by the static elimination mechanism 2, so that the dust on the surface of the composite film is no longer adsorbed on the composite film, while the dust below the composite film falls off under its own gravity. Then, the dust on the surface of the composite film is adsorbed by the electrostatic dust removal roller 11. At the same time, the rotation of the reciprocating screw 32 causes the slider 33 to drive the brush 34 to move back and forth inside the housing 31. Since the brush 34 is attached to the upper surface of the electrostatic dust removal roller 11, the dust tightly adsorbed on the surface of the electrostatic dust removal roller 11 can be scraped off. Then, the scraped dust is sucked away by the suction component.
[0027] Example 1
[0028] like Figure 4 As shown, in this embodiment, the suction assembly includes a dust suction hood 36 fixedly connected to the top surface of the housing 31 and communicating with the interior of the housing 31. A dust suction pump 37 is fixedly connected to the top surface of the frame 1. The input end of the dust suction pump 37 is fixedly connected to the dust suction hood 36 through a connecting pipe.
[0029] In this embodiment, the operation of the vacuum pump 37 can create a negative pressure inside the housing 31. Then, the brush 34, which moves back and forth inside the housing 31, can loosen the dust that is tightly adsorbed on the surface of the electrostatic dust removal roller 11, so that the vacuum pump 37 can suck away the dust inside the housing 31.
[0030] Example 2
[0031] like Figure 4As shown, in this embodiment, one end of the round rod passes through the side of the C-shaped frame 1 and is fixedly connected to a synchronous pulley 12. A C-shaped plate 13 is fixedly connected to one side of the C-shaped frame 1. A motor 14 is fixedly connected to the side of the C-shaped plate 13. The output end of the motor 14 passes through the C-shaped plate 13 and is fixedly connected to the round rod. One end of the reciprocating screw 32 passes through the housing 31 and the side of the C-shaped frame 1 and is fixedly connected to a synchronous pulley 35 that is connected to the synchronous pulley 12 via a synchronous belt. The bottom surface of the housing 31 has an arc-shaped structure.
[0032] In this embodiment, the electrostatic dust removal roller 11 can be rotated by the drive of the motor 14, so that the surface of the electrostatic dust removal roller 11 can be evenly adsorbed with dust. At the same time, the drive of the motor 14 can rotate the reciprocating screw 32, so that the brush 34 can move back and forth in the housing 31, so that the brush 34 can loosen the dust tightly adsorbed on the surface of the electrostatic dust removal roller 11, thereby making it easier for the dust pump 37 to suck away the dust in the housing 31.
[0033] Example 3
[0034] like Figure 3 As shown, in this embodiment, the static elimination mechanism 2 includes two symmetrical rectangular frames 21 fixedly connected to the inner side of the C-shaped frame 1. A bidirectional lead screw 22 is rotatably connected between the two ends of the inner side of the rectangular frame 21. A connecting block is screwed through both ends of the outer wall of the bidirectional lead screw 22. A static emission rod 23 is rotatably connected between the two connecting blocks at opposite positions via a rotating shaft. A connecting rod 24 is fixedly connected to the top of the bidirectional lead screw 22 and rotates through the top surface of the corresponding rectangular frame 21 and C-shaped frame 1. A synchronous pulley 25 is fixedly connected to the top of the outer wall of the connecting rod 24. The two synchronous pulleys 25 at opposite positions are connected by a synchronous belt. The diameter of the static emission rod 23 is larger than the length and width of the connecting block.
[0035] In this embodiment, by rotating the two bidirectional lead screws 22 on the same side of the shaped frame 1, the two electrostatic emission rods 23 at corresponding positions can be brought closer to each other or moved further apart, so that the worker can pass the composite film between the two electrostatic emission rods 23 at the opposite positions, and it is also convenient for the electrostatic emission rods 23 to come into contact with the composite film so that the electrostatic emission rods 23 can eliminate static electricity on the composite film.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An electrostatic dust removal mechanism for preparing biodegradable composite membranes, characterized in that, include: The C-shaped frame (1) is detachably connected to the frame of the laminating machine. A round rod is rotatably connected between the two opposite sides inside the C-shaped frame (1), and an electrostatic dust removal roller (11) is fixedly connected to the outer wall of the round rod. Two static electricity elimination mechanisms (2) are provided and fixed on the inside sides of the frame (1) respectively, for eliminating static electricity on the composite film; The dust collection mechanism (3) is located inside the shaped frame (1) and between the two static elimination mechanisms (2). It is used to remove the dust adsorbed on the outer wall of the electrostatic dust removal roller (11). The dust collection mechanism (3) includes a housing (31) fixedly connected between the two ends inside the shaped frame (1) and located at the top of the electrostatic dust removal roller (11). A reciprocating screw (32) is rotatably connected between the two ends inside the housing (31). A slider (33) is screwed through the outer wall of the reciprocating screw (32) and abuts against the inner wall of the housing (31). A brush (34) is fixedly connected to the bottom end of the slider (33) and a suction assembly is provided at the top of the housing (31).
2. The electrostatic dust removal mechanism for preparing biodegradable composite membranes according to claim 1, characterized in that, The suction assembly includes a dust hood (36) fixedly connected to the top surface of the housing (31) and communicating with the inside of the housing (31). A dust pump (37) is fixedly connected to the top surface of the frame (1). The input end of the dust pump (37) is fixedly connected to the dust hood (36) through a connecting pipe.
3. The electrostatic dust removal mechanism for preparing biodegradable composite membranes according to claim 2, characterized in that, One end of the round rod passes through the side of the C-shaped frame (1) and is fixedly connected to the first synchronous pulley (12). One side of the C-shaped frame (1) is fixedly connected to the C-shaped plate (13). The side of the C-shaped plate (13) is fixedly connected to the motor (14). The output end of the motor (14) passes through the C-shaped plate (13) and is fixedly connected to the round rod. One end of the reciprocating screw (32) passes through the housing (31) and the side of the C-shaped frame (1) and is fixedly connected to the third synchronous pulley (35) which is connected to the first synchronous pulley (12) by a synchronous belt.
4. The electrostatic dust removal mechanism for preparing biodegradable composite membranes according to claim 3, characterized in that, The bottom surface of the shell (31) is an arc-shaped structure.
5. The electrostatic dust removal mechanism for preparing biodegradable composite membranes according to claim 4, characterized in that, The static elimination mechanism (2) includes two symmetrical rectangular frames (21) fixedly connected to the inner side of the frame (1). A bidirectional screw (22) is rotatably connected between the two ends of the inner side of the rectangular frame (21). A connecting block is screwed through both ends of the outer wall of the bidirectional screw (22). A static emission rod (23) is rotatably connected between the two connecting blocks at opposite positions through a rotating shaft.
6. The electrostatic dust removal mechanism for preparing biodegradable composite membranes according to claim 5, characterized in that, The top of the bidirectional lead screw (22) is fixedly connected to a connecting rod (24) that rotates through the top surface of the rectangular frame (21) and the mortise frame (1) at the corresponding position. The top of the outer wall of the connecting rod (24) is fixedly connected to a synchronous pulley (25). The two synchronous pulleys (25) at the opposite positions are connected by a synchronous belt.
7. The electrostatic dust removal mechanism for preparing biodegradable composite membranes according to claim 6, characterized in that, The diameter of the electrostatic emission rod (23) is greater than the length and width of the connecting block.