Electrostatic chucker

By designing the vibratory conveying and side discharge hopper components of the electrostatic precipitator, the problem of the difficulty in removing light impurities from broken tobacco flakes in the existing technology has been solved, achieving efficient and reliable impurity collection and material conveying.

CN224572220UActive Publication Date: 2026-07-31YUNNAN BAOSHAN ORIENTAL TOBACCO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN BAOSHAN ORIENTAL TOBACCO
Filing Date
2025-08-22
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing electrostatic precipitators cannot effectively remove light impurities from tobacco flakes, such as plastics, hair, hemp fibers, and weeds, and there are problems with impurity accumulation and loss.

Method used

An electrostatic impurity removal machine was designed, including a vibrating conveying mechanism, an electrostatic impurity removal mechanism, a debris conveying mechanism, and a side discharge hopper assembly. The machine removes impurities by vibrating and spreading the material, using electrostatic adsorption, and then guides the material to the debris conveying mechanism for collection in a timely manner through the side discharge hopper assembly.

Benefits of technology

It improves the efficiency and effectiveness of impurity removal, ensures the smooth collection of impurities, reduces material loss, and enhances the stability and impurity removal performance of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an electrostatic impurity removal machine, relating to the technical field of impurity removal devices. It includes: a vibrating conveying mechanism, an electrostatic impurity removal mechanism, a debris conveying mechanism, and a side discharge hopper assembly. The vibrating conveying mechanism is used to spread and convey shredded tobacco leaves. The electrostatic impurity removal mechanism is located directly above the vibrating conveying mechanism and removes light impurities from the material through electrostatic adsorption. The debris conveying mechanism is located on one side of the vibrating conveying mechanism and is used to collect and convey the removed impurities. The side discharge hopper assembly is fixedly installed on the vibrating conveying mechanism and is correspondingly arranged to the electrostatic impurity removal mechanism. The side discharge hopper assembly is inclined downwards from the vibrating conveying mechanism to the debris conveying mechanism and can vibrate with the vibrating conveying mechanism to guide the impurities dislodged by the electrostatic impurity removal mechanism to the debris conveying mechanism. It can effectively remove light impurities such as plastic, hair, hemp fibers, and weeds from shredded tobacco leaves, and its performance is reliable.
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Description

Technical Field

[0001] This utility model relates to the field of impurity removal devices, and in particular to an electrostatic impurity removal machine. Background Technology

[0002] Currently, in the processing of aromatic tobacco, due to the small and fragmented nature of the tobacco leaves, lightweight impurities such as plastic, hair, hemp fibers, and weeds, which are difficult to remove, are easily mixed into the tobacco leaves during the drying process undertaken by farmers themselves. This not only reduces the quality of the tobacco leaves but also poses food safety risks and economic losses.

[0003] While some organizations have designed electrostatic impurity removal machines for tea leaves (patent number: 201110187039.5), these machines have several drawbacks. For example, they rely on inclined plates installed under felt strips, hoping to collect impurities by utilizing the component of gravity on the plates. However, because the electrostatically adsorbed impurities are lightweight, they tend to accumulate on the surface of the inclined plates and may even fall back into the material from the sides, increasing the impurity content. Furthermore, they collect impurities sieved through a stationary tray, which cannot automatically discharge them, and the sieve method is unsuitable for removing broken tobacco leaves, resulting in significant losses. Therefore, existing impurity removal equipment cannot meet the needs of effectively removing impurities from broken tobacco leaves, necessitating the design of a new type of electrostatic impurity removal machine to solve the problem of removing lightweight impurities from broken tobacco leaves. Utility Model Content

[0004] The purpose of this invention is to provide an electrostatic impurity removal machine to solve the problems existing in the prior art. It can effectively remove light impurities such as plastic, hair, hemp fibers, and weeds from broken tobacco sheets, and its performance is reliable.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides an electrostatic impurity removal machine, comprising: a vibrating conveying mechanism, an electrostatic impurity removal mechanism, a debris conveying mechanism, and a side discharge hopper assembly. The vibrating conveying mechanism is used to spread and convey leaf-shaped materials. The electrostatic impurity removal mechanism is located directly above the vibrating conveying mechanism and removes light impurities from the materials through electrostatic adsorption. The debris conveying mechanism is located on one side of the vibrating conveying mechanism and is used to collect and convey the removed impurities. The side discharge hopper assembly is fixedly installed on the vibrating conveying mechanism and is correspondingly arranged with the electrostatic impurity removal mechanism. The side discharge hopper assembly is inclined downward from the vibrating conveying mechanism to the debris conveying mechanism and can vibrate with the vibrating conveying mechanism to guide the impurities dislodged by the electrostatic impurity removal mechanism to the debris conveying mechanism.

[0006] Preferably, the vibrating conveying mechanism includes multiple legs, an elastic mechanism, a frame, two vibrating motors, multiple spring plates, and a trough structure. Each of the legs is installed on the working ground. The frame is supported on each of the legs by the elastic mechanism. The two vibrating motors are respectively installed on both sides of the frame. The trough structure is installed on the frame by each of the spring plates. One end of the lateral discharge hopper assembly is installed on the trough structure. The electrostatic impurity removal mechanism is installed above the trough structure.

[0007] Preferably, the two vibration motors are operated in a configuration with equal speed, opposite direction, and consistent phase of the eccentric blocks, so that the tank structure generates directional linear vibration.

[0008] Preferably, the trough structure includes a frame and a trough body. The trough body is installed above the frame to form a space carrier for placing the shredded material to be conveyed. The frame is installed on the machine frame through each of the spring plates. The lateral discharge hopper assembly spans the frame and is installed above the trough body.

[0009] Preferably, the electrostatic impurity removal mechanism includes a support, at least one electrostatic roller, at least one felt assembly, and a drive motor. The support is arranged across the frame, the electrostatic roller is mounted across the support and located above the trough, the drive motor is mounted on one side of the support and is connected to the electrostatic roller to drive the electrostatic roller to rotate, the felt assembly is mounted on the support, and one side of the felt assembly is in close contact with the surface of the electrostatic roller to generate static electricity on the electrostatic roller, while the other side is located above the discharge hopper assembly so that the felt assembly scrapes impurities off the surface of the electrostatic roller and they fall into the discharge hopper assembly.

[0010] Preferably, the discharge hopper assembly includes multiple discharge hoppers, with one discharge hopper corresponding to one electrostatic roller. The discharge hopper is installed above the trough and inclined towards the debris conveying mechanism. The top opening of the discharge hopper is located below the side of the felt assembly away from the electrostatic roller.

[0011] Preferably, the tilt angle of the discharge hopper is 15°~45°.

[0012] Preferably, the debris conveying mechanism includes a support frame, a drive roller, a driven roller, a geared motor, a conveyor belt, and a discharge hopper. The support frame is installed on one side of the bracket. The drive roller, the driven roller, and the geared motor are all installed on the support frame. The geared motor is connected to the drive roller to drive the drive roller to rotate. The conveyor belt is wrapped around the outside of the drive roller and the driven roller, and the conveyor belt is located below the discharge hopper to receive the impurities conveyed by the discharge hopper. The discharge hopper is installed on the support frame below the output side of the conveyor belt to discharge the impurities to the impurity collection box.

[0013] The present invention achieves the following technical advantages over the prior art: This utility model provides an electrostatic impurity removal machine. The vibrating conveying mechanism spreads and conveys the material thinly, creating favorable conditions for electrostatic impurity removal. The electrostatic impurity removal mechanism accurately adsorbs impurities from above. The impurity conveying mechanism collects and outputs impurities from the side in a timely manner. The side discharge hopper assembly plays a guiding and transitioning role. The vibration generated by the vibrating conveying mechanism can achieve both thinning and conveying of the material and transmitting the vibration to the side discharge hopper assembly, effectively ensuring that the impurities in the side discharge hopper assembly can be smoothly guided to the impurity conveying mechanism, ensuring that the impurities are collected smoothly, and improving the impurity removal efficiency and effect. 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 embodiments 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 front view of the electrostatic precipitator provided by this utility model; Figure 2 This is a left view of the electrostatic precipitator provided by this utility model; Figure 3 This is a schematic diagram of the vibrating conveyor mechanism in the electrostatic precipitator provided by this utility model; Figure 4 This is a schematic diagram of the electrostatic cleaning mechanism in the electrostatic cleaning machine provided by this utility model; Figure 5 This is a schematic diagram of the debris conveying mechanism in the electrostatic precipitator provided by this utility model.

[0016] In the diagram: 1. Vibrating conveyor mechanism; 2. Electrostatic removal mechanism; 3. Debris conveying mechanism; 11. Vibrating motor; 12. Tank structure; 13. Spring plate; 14. Frame; 15. Elastic mechanism; 16. Support leg; 17. Skeleton; 18. Tank; 19. Discharge hopper; 21. Drive motor; 22. Electrostatic roller; 23. Felt assembly; 24. Bracket; 31. Gear motor; 32. Support frame; 33. Active roller; 34. Passive roller; 35. Discharge hopper; 36. Conveyor belt. 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 protection scope of the present utility model.

[0018] The purpose of this invention is to provide an electrostatic impurity removal machine to solve the problems existing in the prior art. It can effectively remove light impurities such as plastic, hair, hemp fibers, and weeds from broken tobacco sheets, and its performance is reliable.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] This utility model provides an electrostatic impurity removal machine, such as... Figures 1-5 As shown, the assembly includes: a vibrating conveyor mechanism 1, an electrostatic impurity removal mechanism 2, a debris conveying mechanism 3, and a side discharge hopper 19 assembly. The vibrating conveyor mechanism 1 is used to spread and convey leaf-shaped materials. The electrostatic impurity removal mechanism 2 is located directly above the vibrating conveyor mechanism 1 and removes light impurities from the material through electrostatic adsorption. The debris conveying mechanism 3 is located on one side of the vibrating conveyor mechanism 1 and is used to collect and convey the removed impurities. The side discharge hopper 19 assembly is fixedly installed on the vibrating conveyor mechanism 1 and is correspondingly arranged with the electrostatic impurity removal mechanism 2. The side discharge hopper 19 assembly is inclined downward from the vibrating conveyor mechanism 1 to the debris conveying mechanism 3 and can move with the vibration. The vibrating conveyor 1 vibrates to guide the impurities dislodged by the electrostatic impurity removal mechanism 2 to the debris conveying mechanism 3. The vibrating conveyor 1 spreads and conveys the material thinly, creating favorable conditions for electrostatic impurity removal. The electrostatic impurity removal mechanism 2 accurately adsorbs impurities from above. The debris conveying mechanism 3 collects and outputs impurities from the side in a timely manner. The side discharge hopper 19 component plays a guiding and transitioning role. The vibration generated by the vibrating conveyor 1 can achieve the thinning and conveying of the material while transmitting the vibration to the side discharge hopper 19 component, effectively ensuring that the impurities in the side discharge hopper 19 component can be smoothly guided to the debris conveying mechanism 3, ensuring that the impurities are collected smoothly, and improving the impurity removal efficiency and effect.

[0021] In a preferred embodiment, the vibrating conveying mechanism 1 includes multiple legs 16, an elastic mechanism 15, a frame 14, two vibrating motors 11, multiple spring plates 13, and a trough structure 12. Each leg 16 is installed on the working ground, and the frame 14 is supported on each leg 16 by the elastic mechanism 15. The two vibrating motors 11 are respectively installed on both sides of the frame 14. The trough structure 12 is installed on the frame 14 by each spring plate 13. One end of the lateral discharge hopper 19 assembly is installed on the trough structure 12, and the electrostatic impurity removal mechanism 2 is installed above the trough structure 12. This arrangement constructs a stable vibrating conveying mechanism 1 structure. The outriggers 16 provide stable support; the elastic mechanism 15 mitigates the impact of vibration on the ground during equipment operation and reduces vibration transmission; the frame 14 serves as the overall load-bearing component; two vibrating motors 11 provide power on both sides and are connected to the trough structure 12 through spring plates 13, enabling the trough structure 12 to generate appropriate vibration under the drive of the motor, providing power for material spreading and conveying, and at the same time providing a stable installation foundation for the electrostatic impurity removal mechanism 2.

[0022] In a preferred embodiment, two vibratory motors 11 operate with equal rotational speeds, opposite directions, and synchronized eccentric block phases to induce directional linear vibration in the trough structure 12. This motor configuration allows for precise control of the vibration pattern of the trough structure 12. The equal rotational speeds, opposite directions, and synchronized eccentric block phases ensure that vibrations in the width direction of the frame 14 cancel each other out, while vibrations in the length direction are superimposed, resulting in stable directional linear vibration. This vibration pattern more effectively spreads and throws shredded materials, ensuring uniform dispersion during transport and improving the subsequent electrostatic impurity removal effect.

[0023] In a preferred embodiment, the spring plates are arranged in parallel, with each spring plate forming a 65° angle with the horizontal plane. This parallel arrangement ensures uniform and stable force distribution at each connection point when the trough structure is connected to the frame. This allows the trough structure to vibrate more smoothly under the drive of the vibrating motor, avoiding uneven vibration caused by inconsistent spring plate placement, which could affect material conveying efficiency. The 65° angle between the spring plates and the horizontal plane is an optimized angle. This angle helps ensure that the spring plates effectively transmit the power generated by the vibrating motor, resulting in good vibration of the trough structure and smooth material conveying, while also guaranteeing the stability and structural strength of the entire vibrating conveying system. This arrangement enhances the overall stability of the vibrating conveying mechanism, effectively improves vibration transmission efficiency, and provides a more reliable guarantee for the stable, efficient spreading and conveying of materials.

[0024] In a preferred embodiment, the elastic mechanism 15 is a coil spring, leaf spring, rubber damping pad, or air spring. The selection of various types of elastic mechanisms 15 allows for optimized adaptation to different working environments, equipment requirements, and material characteristics. Coil springs have a simple structure and stable elasticity; leaf springs occupy little space and have good vibration damping performance; rubber damping pads effectively absorb high-frequency vibrations, providing buffering and sound insulation; air springs can be adjusted according to different loads and operating conditions. These elastic mechanisms 15 effectively reduce noise and vibration transmission generated by the frame 14, protecting the equipment and the working surface, and improving the service life and stability of the equipment.

[0025] In a preferred embodiment, the trough structure 12 includes a frame 17 and a trough 18. The trough 18 is installed above the frame 17 to form a space carrier for placing the shredded material to be conveyed. The frame 17 is installed on the frame 14 via spring plates 13. A side discharge hopper 19 assembly spans the frame 17 and is installed above the trough 18. The structural design of the trough 18 and the frame 17 ensures the stability and load-bearing capacity of the trough 18, providing a stable space for material placement. The frame 17 is connected to the frame 14 via spring plates 13, which facilitates the transmission of vibration to the entire trough structure 12, making material conveying easier. The side discharge hopper 19 assembly spans the frame 17 and is installed above the trough 18. The discharge hopper 19 is in a stable position, facilitating the reception of impurities falling from the electrostatic impurity removal mechanism 2. Simultaneously, with the vibration of the trough structure 12, it can actively guide impurities to the impurity conveying mechanism 3.

[0026] In a preferred embodiment, the electrostatic impurity removal mechanism 2 includes a support 24, at least one electrostatic roller 22, at least one felt assembly 23, and a drive motor 21. The support 24 is arranged across the frame 14. The electrostatic roller 22 is mounted across the support 24 and located above the trough 18. The drive motor 21 is mounted on one side of the support 24 and is connected to the electrostatic roller 22 to drive the electrostatic roller 22 to rotate. The felt assembly 23 is mounted on the support 24, and one side of the felt assembly 23 is in close contact with the surface of the electrostatic roller 22 to generate static electricity adsorption on the electrostatic roller 22. The other side is located above the discharge hopper 19 assembly so that the impurities scraped off the surface of the electrostatic roller 22 by the felt assembly 23 fall into the discharge hopper 19 assembly. The electrostatic impurity removal mechanism 2 is designed to effectively adsorb and remove light impurities. The bracket 24 provides a stable mounting base for other components; the electrostatic roller 22 rotates under the drive of the drive motor 21, and works with the felt assembly 23 to generate and use electrostatic adsorption to adsorb light impurities; the felt assembly 23 can both enable the electrostatic roller 22 to generate static electricity and scrape off the impurities on the surface of the electrostatic roller 22 in time so that they fall into the discharge hopper 19 assembly, forming an efficient impurity adsorption and discharge process, ensuring that the impurity removal work continues to be stable.

[0027] In a preferred embodiment, the discharge hopper 19 assembly includes multiple discharge hoppers 19, each corresponding to an electrostatic roller 22. The discharge hoppers 19 are mounted above the trough 18 and inclined towards the debris conveying mechanism 3. The top opening of each discharge hopper 19 is located below the side of the felt assembly 23 away from the electrostatic roller 22. The corresponding arrangement of the discharge hoppers 19 and electrostatic rollers 22 ensures that each impurity adsorbed by the electrostatic roller 22 is received by a dedicated discharge hopper 19. The inclined arrangement of the discharge hoppers 19 towards the debris conveying mechanism 3 utilizes gravity and vibration to facilitate the slippage of impurities into the mechanism. The placement of the top opening ensures that impurities accurately fall into the discharge hopper 19, preventing deviations in impurity drop, improving impurity collection efficiency, and ensuring that every adsorbed and scraped impurity smoothly enters the debris conveying process.

[0028] In a preferred embodiment, the tilt angle of the discharge hopper 19 is 15° to 45°. This tilt angle range is optimized to ensure that impurities can smoothly slide down to the impurity conveying mechanism 3 by gravity, while avoiding excessive space occupation of the discharge hopper 19 structure due to an excessively large tilt angle or obstruction of impurity sliding due to an excessively small tilt angle. The appropriate tilt angle ensures the smoothness of impurity conveying and improves the continuity and stability of the entire impurity removal process.

[0029] In a preferred embodiment, the debris conveying mechanism 3 includes a support frame 32, a drive roller 33, a driven roller 34, a geared motor 31, a conveyor belt 36, and a hopper 35. The support frame 32 is mounted on one side of the bracket 24. The drive roller 33, the driven roller 34, and the geared motor 31 are all mounted on the support frame 32. The geared motor 31 is connected to the drive roller 33 to drive the drive roller 33 to rotate. The conveyor belt 36 is wrapped around the outside of the drive roller 33 and the driven roller 34, and the conveyor belt 36 is located below the discharge hopper 19 to receive the impurities conveyed by the discharge hopper 19. The hopper 35 is mounted on the support frame 32 and located below the output side of the conveyor belt 36 to discharge the impurities to the impurity collection box. The support frame 32 provides a stable installation foundation; the geared motor 31 drives the drive roller 33 to rotate, thereby driving the conveyor belt 36 to run; the conveyor belt 36 is located below the discharge hopper 19 to accurately receive impurities and transport them to the drop hopper 35; the drop hopper 35 discharges the impurities to the collection box, forming a complete impurity conveying and collection chain, ensuring the effective treatment of impurities during the entire operation of the electrostatic precipitator, enabling the equipment to operate continuously and stably, and reducing the impact of impurity residue on the equipment and materials.

[0030] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An electrostatic chucker characterized by: include: A vibrating conveyor mechanism for spreading and conveying leaf-shaped materials; An electrostatic impurity removal mechanism is located directly above the vibrating conveyor mechanism and removes light impurities from the material through electrostatic adsorption. A debris conveying mechanism is disposed on one side of the vibrating conveying mechanism and is used to collect and convey the rejected impurities; A side discharge hopper assembly is fixedly installed on the vibrating conveying mechanism and is correspondingly arranged with the electrostatic impurity removal mechanism. The side discharge hopper assembly is inclined downward from the vibrating conveying mechanism to the impurity conveying mechanism and can vibrate with the vibrating conveying mechanism to guide the impurities dislodged by the electrostatic impurity removal mechanism to the impurity conveying mechanism.

2. The electrostatic particle precipitator according to claim 1, characterized in that: The vibrating conveying mechanism includes multiple legs, an elastic mechanism, a frame, two vibrating motors, multiple spring plates, and a trough structure. Each of the legs is installed on the working ground. The frame is supported on each of the legs by the elastic mechanism. The two vibrating motors are respectively installed on both sides of the frame. The trough structure is installed on the frame by each of the spring plates. One end of the lateral discharge hopper assembly is installed on the trough structure. The electrostatic impurity removal mechanism is installed above the trough structure.

3. The electrostatic particle precipitator according to claim 2, characterized in that: The two vibration motors are operated with equal speed, opposite direction, and eccentric blocks in the same phase to generate directional linear vibration in the tank structure.

4. The electrostatic particle precipitator according to claim 3, characterized in that: The trough structure includes a frame and a trough body. The trough body is installed above the frame to form a space carrier for placing the shredded material to be conveyed. The frame is installed on the machine frame through each of the spring plates. The lateral discharge hopper assembly spans the frame and is installed above the trough body.

5. The electrostatic particle precipitator according to claim 4, characterized in that: The electrostatic impurity removal mechanism includes a support frame, at least one electrostatic roller, at least one felt assembly, and a drive motor. The support frame spans the machine frame, the electrostatic roller is mounted across the support frame and located above the trough, the drive motor is mounted on one side of the support frame and is connected to the electrostatic roller to drive the electrostatic roller to rotate, the felt assembly is mounted on the support frame, and one side of the felt assembly is in close contact with the surface of the electrostatic roller to generate static electricity on the electrostatic roller, while the other side is located above the discharge hopper assembly so that the felt assembly scrapes impurities off the surface of the electrostatic roller and they fall into the discharge hopper assembly.

6. The electrostatic particle precipitator according to claim 5, characterized in that: The discharge hopper assembly includes multiple discharge hoppers, with one discharge hopper corresponding to one electrostatic roller. The discharge hopper is installed above the trough and inclined towards the debris conveying mechanism. The top opening of the discharge hopper is located below the side of the felt assembly away from the electrostatic roller.

7. The electrostatic particle precipitator according to claim 6, characterized in that: The tilt angle of the discharge hopper is 15°~45°.

8. The electrostatic precipitator according to claim 7, characterized in that: The debris conveying mechanism includes a support frame, a drive roller, a driven roller, a geared motor, a conveyor belt, and a hopper. The support frame is installed on one side of the bracket. The drive roller, the driven roller, and the geared motor are all installed on the support frame. The geared motor is connected to the drive roller to drive the drive roller to rotate. The conveyor belt is wrapped around the outside of the drive roller and the driven roller, and the conveyor belt is located below the discharge hopper to receive the impurities conveyed by the discharge hopper. The discharge hopper is installed on the support frame below the output side of the conveyor belt to discharge the impurities to the impurity collection box.