Roller brush self-cleaning device for tobacco conveying belt

Abstract

The utility model discloses a roller brush self-cleaning device for a tobacco conveying belt, which relates to the technical field of cut tobacco production in the tobacco industry and comprises a bottom plate, and a cleaning box and a water circulating mechanism are mounted above the bottom plate. A motor is installed on one side of the cleaning box, the output end of the motor is connected with a rotating shaft, and a detachable roller brush is arranged on the outer circle face of the rotating shaft. A lead screw is arranged on one side of the cleaning box, one end of the lead screw penetrates into the cleaning box and is connected with a first synchronous plate, and the bottom face of the first synchronous plate is fixedly connected with a cleaning brush. The water circulating mechanism comprises a water tank and a water purifying tank, a filter element is arranged in the water purifying tank, one end of the water tank communicates with the water purifying tank, and the other end communicates with the interior of the cleaning tank; through the roller brush and the cleaning brush, self-cleaning of the roller brush is achieved; the water recycling mechanism is matched with the cleaning box to filter and recycle sewage after cleaning, so that the problem of sewage discharge of the tobacco shred making workshop is solved, a large amount of fresh water sources are saved, and the continuity of the cleaning process and the overall working efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco industry silk production, in particular to a roller brush self-cleaning device for a tobacco conveyor belt. Background Art

[0002] Belt conveyors are widely used in the cigarette industry, especially in the tobacco production process. They are primarily used to transport tobacco materials and are critical equipment for connecting previous and subsequent processes. In actual production, tobacco materials experience a certain degree of breakage due to fluctuations in moisture content, temperature, and humidity. This breakage causes tobacco dust to adhere to the belt surface or roller assembly. If not promptly cleaned, it can cause vibration during operation, impacting equipment operation and process quality. To address this, roller brushes are often installed at the end of belt conveyors in tobacco production plants to remove adhering tobacco dust. However, after long-term use, these brushes can become scaled, hardened, and severely deformed, rendering them inoperable. They can also exacerbate the adhesion and accumulation of tobacco dust. The accumulation of tobacco dust can also breed tobacco insects, seriously impacting product quality and the stable operation of production equipment. Therefore, regular cleaning and replacement of roller brushes is crucial to maintaining proper belt conveyor cleanliness and removing adhering tobacco dust to ensure process quality.

[0003] Chinese patent publication number CN219708238U discloses a brush cleaning device for a tobacco manufacturing belt conveyor. The device includes a rotatable brush mounted on a brush shaft and a scraper for cleaning the brush, thereby achieving self-cleaning of the roller brush. However, in practice, this device lacks a supporting circulating water circuit, requiring the consumption of a large amount of fresh water when cleaning the roller brush and also requiring wastewater disposal. Consequently, water resource waste and environmental concerns significantly restrict the application of this structure in silk-making workshops, impacting the continuity and efficiency of the belt cleaning roller brush cleaning process. Utility Model Content

[0004] In response to the shortcomings of the above-mentioned existing technologies, the utility model provides a roller brush self-cleaning device for a tobacco conveyor belt, which can not only realize the convenient replacement and self-cleaning of the roller brush, but also save water consumption, be environmentally friendly, improve the continuity of the cleaning process, and improve overall work efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A roller brush self-cleaning device for a tobacco conveyor belt comprises a base plate, a cleaning box and a water circulation mechanism mounted above the base plate; a motor is mounted on one side of the cleaning box, an output end of the motor is connected to a rotating shaft, the rotating shaft is disposed inside the cleaning box and is rotatably connected to the cleaning box, and a detachable roller brush is provided on the outer circumference of the rotating shaft;

[0007] A screw is provided on one side of the cleaning box, one end of which penetrates into the interior of the cleaning box and is rotatably connected to a first synchronous plate, and a cleaning brush arranged parallel to the roller brush is fixedly connected to the bottom surface of the first synchronous plate; one end of the first synchronous plate located outside the cleaning box is connected to a rotating handle for driving the screw and thereby driving the cleaning brush to move closer to or away from the roller brush;

[0008] The circulating water mechanism includes a water tank and a clean water tank installed at the bottom of the cleaning tank. A filter element is provided in the clean water tank. One end of the water tank is connected to the clean water tank, and the other end is connected to the inside of the cleaning tank.

[0009] As a further implementation method, a filter plate is provided on the inner bottom wall of the cleaning box to improve the sewage filtering effect.

[0010] As a further implementation method, the circulating water mechanism also includes a water purifier, which is connected to the clean water tank through a connecting pipe; a water pump is installed in the water tank, and the input end of the water pump is connected to the water purifier through an inlet pipe, and the water pump is connected to the inside of the cleaning tank through an outlet pipe; through the water purifier, the sewage filtering and purification effect is further improved, and the cleaning effect of the cleaning brush is guaranteed while realizing circulating water.

[0011] As a further implementation, an electric valve is installed on the outer surface of the water inlet pipe to control the opening and closing of the water inlet.

[0012] As a further implementation method, a support bar is fixedly provided on the inner wall of the clean water tank, a filter core slidably connected to the support bar is provided below the support bar, and a handle is fixedly connected to the outer wall of the filter core to facilitate gripping and taking out the filter core for cleaning or replacement.

[0013] As a further implementation method, the outer surface of the clean water tank is fixedly connected to a first connecting plate, the bottom of the first connecting plate is connected to a telescopic rod, the bottom of the telescopic rod is fixedly connected to a second connecting plate, and the bottom surface of the second connecting plate is fixedly provided with an L-shaped clip, and the L-shaped clip contacts the outer surface of the filter element to limit and fix the filter element.

[0014] As a further implementation method, the outer sleeve of the telescopic rod is provided with a spring, and the two ends of the spring are fixedly connected to the first connecting plate and the second connecting plate respectively; the outer surface of the second connecting plate is fixedly connected to a grip plate for easy operation.

[0015] As a further implementation method, a disassembly plate is slidably connected to one side of the cleaning box, and one end of the rotating shaft is rotatably connected to the disassembly plate; the outer surface of the disassembly plate is connected to a fixed block, and the fixed block is bolted to the cleaning box for fixing and limiting the disassembly plate, while facilitating disassembly.

[0016] As a further implementation, a heater is installed on the inner bottom wall of the cleaning tank to heat the water in the water cleaning tank.

[0017] As a further implementation, the roller brush is connected to the rotating shaft by bolts.

[0018] As a further implementation method, a second rotating shaft parallel to the rotating shaft is further provided in the cleaning box, a roller brush is fixedly provided on the outer circumferential surface of the second rotating shaft, and the end of the rotating shaft drives the second rotating shaft to rotate through a pulley structure.

[0019] As a further implementation, the cleaning brush is also connected to a second synchronization plate, which is arranged parallel to the first synchronization plate; the second synchronization plate is fixedly connected to a sliding rod extending out of the cleaning box, and the sliding rod is slidably connected to the inside of the cleaning box.

[0020] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0021] 1. The utility model realizes self-cleaning of the drum brush through the drum brush and the cleaning brush in the cleaning box; at the same time, the circulating water mechanism cooperates with the cleaning box to filter the sewage after cleaning and then recycle it, which not only solves the sewage discharge problem in the silk-making workshop, but also saves a lot of fresh water, is environmentally friendly and economical, and at the same time improves the continuity of the cleaning process and the overall work efficiency.

[0022] 2. The utility model realizes triple filtration through the filter plate, filter element and water purifier, effectively filters and purifies the sewage after cleaning the roller brush, and recycles the filtered and purified water, reducing the consumption of fresh water sources. There is no need to frequently replace the cleaning water, effectively reducing the frequency of water replacement, thereby maintaining the continuity of the cleaning process, enabling staff to complete the cleaning task more efficiently, and improving overall work efficiency.

[0023] 3. The utility model can quickly and conveniently disassemble the filter element through the cooperation between the grip plate, the second connecting plate, the L-shaped clip, the spring, the telescopic rod and the first connecting plate, thereby facilitating the replacement or cleaning of the filter element, effectively reducing the downtime caused by removing the filter element, allowing the staff to complete the replacement operation in a short time and quickly enable the device to operate normally, further improving the working efficiency and ensuring the stability and continuity of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0026] Figure 2 This is a structural diagram of a water circulation mechanism according to an embodiment of the present invention.

[0027] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the figure.

[0028] Figure 4 This is a schematic diagram of the structure of an embodiment of the utility model viewed from above.

[0029] In the figure: 1. Cleaning box; 2. Support column; 3. Bottom plate; 4. Water circulation mechanism; 5. Motor; 6. Disassembly plate; 7. Fixing block; 8. Screw; 9. Rotating handle; 10. First synchronous plate; 11. Cleaning brush; 12. Second synchronous plate; 13. Sliding rod; 14. Rotating shaft; 15. Roller brush; 16. Synchronous rod; 17. First rotating rod; 18. First pulley; 19. Belt; 20. Second pulley; 21. Second rotating rod; 22. Heater

[0030] 401. Water tank; 402. Water pump; 403. Water outlet pipe; 404. Water inlet pipe; 405. Electric valve; 406. Water purifier; 407. Connecting pipe; 408. Clean water tank; 409. Support bar; 410. Filter element; 411. Handle; 412. First connecting plate; 413. Telescopic rod; 414. Spring; 415. Second connecting plate; 416. L-shaped clip; 417. Grip plate; 418. Filter plate. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] In a typical embodiment of the present application, a roller brush self-cleaning device for a tobacco conveyor belt is provided, such as Figure 1-4 As shown, it includes a bottom plate 3, a cleaning box 1 and a circulating water mechanism 4 are installed above the bottom plate 3; a motor 5 is installed on one side of the cleaning box 1, and the output end of the motor 5 is connected to a rotating shaft 14, which is arranged inside the cleaning box and is rotatably connected to the cleaning box 1. A detachable roller brush 15 is provided on the outer circumference of the rotating shaft 14;

[0035] A screw rod 8 is provided on one side of the cleaning box, one end of which penetrates into the interior of the cleaning box and is rotatably connected to a first synchronous plate 10. A cleaning brush 11 arranged parallel to the roller brush is fixedly connected to the bottom surface of the first synchronous plate 10; one end of the first synchronous plate 10 located outside the cleaning box is connected to a rotating handle 9 for driving the screw rod and thereby driving the cleaning brush to move closer to or away from the roller brush;

[0036] The circulating water mechanism 4 includes a water pump 402 and a clean water tank 408 installed at the bottom of the cleaning tank. A filter element 410 is provided in the clean water tank 408. One end of the water pump 402 is connected to the clean water tank 408, and the other end is connected to the inside of the cleaning tank 1.

[0037] Specifically, if Figure 1 As shown, the bottom surface of the cleaning tank 1 is fixedly connected to a plurality of support columns 2, and the cleaning tank 1 is fixedly mounted on the bottom plate 3 through the support columns. The circulating water mechanism 2 is installed between the bottom plate 3 and the bottom of the cleaning tank 1, and is used to receive the washed sewage in the cleaning tank and pass the clean water into the cleaning tank after filtering.

[0038] In this embodiment, a roller brush for cleaning the conveyor belt and a cleaning brush for cleaning the roller brush are provided inside the cleaning box. At the same time, the roller brush is installed in a detachable manner, which not only realizes the self-cleaning of the roller brush, but also facilitates the replacement of the roller brush after long-term use, thereby avoiding scaling, hardening, etc. of the roller brush, which may cause the cleaning function to fail and even breed tobacco insects.

[0039] Specifically, if Figure 4 As shown, a disassembly plate 6 is slidably connected to one side of the cleaning box 1. One end of the rotating shaft 14 is driven to rotate by the motor 5, and the other end is rotatably connected to the disassembly plate 6. A fixing block 7 is fixedly connected to the outer surface of the disassembly plate 6. The fixing block 7 is fixedly connected to the cleaning box 1 by bolts, which can fix and limit the disassembly plate and facilitate disassembly.

[0040] A screw 8 is provided on one side of the cleaning box 1, and the screw 8 is threadedly connected to the cleaning box 1 to form a screw-nut structure. One end of the screw 8 extends into the interior of the cleaning box 1 and is rotatably connected to the first synchronous plate 10 via a bearing; the other end of the screw 8 is fixedly connected to a rotating handle 9. By turning the handle 9, the screw 8 can be driven to rotate, thereby driving the first synchronous plate 10 to move linearly inside the cleaning box, approaching or moving away from the parallel roller brush. A cleaning brush 11 is fixedly connected to the bottom surface of the first synchronous plate 10. The cleaning brush 10 is arranged parallel to the roller brush 15 and can be driven by the screw to contact and clean the roller brush. To improve the stability of the cleaning brush during movement, the upper surface of the cleaning brush 11 is also fixedly connected to a second synchronous plate 12. The second synchronous plate is fixedly connected to a slide bar 13. The slide bar 13 is arranged parallel to the screw 8 and is slidably connected to the cleaning box 1.

[0041] At the same time, a rotating shaft 14 is installed at the output end of the motor 5, and the rotating shaft 14 is rotatably connected to the inside of the cleaning box 1. The outer surface of the rotating shaft 14 is fixedly connected to the roller brush 15 by screws. Therefore, after the motor is started, it can drive the rotating shaft and the roller brush to rotate as a whole. At this time, the conveyor belt can be cleaned by rotation, or the roller brush can be cleaned by a cleaning brush.

[0042] In order to further improve the cleaning efficiency of the conveyor belt, two identical rotating shaft structures are arranged in parallel in this embodiment, and the two rotating shaft structures are driven by a pulley structure, such as Figure 4 As shown, a synchronous rod 16 is slidably connected to the interior of the rotating shaft 14. The end of the synchronous rod 16 away from the rotating shaft 14 is fixedly connected to a first rotating rod 17. The first rotating rod 17 is rotatably connected to the interior of the disassembly plate 6. The end of the first rotating rod 17 away from the synchronous rod 16 is fixedly connected to a first pulley 18. The disassembly plate 6 is rotatably connected to a second rotating rod 21. The end of the second rotating rod 21 away from the disassembly plate 6 is fixedly connected to a second pulley 20. The second pulley 20 and the first pulley 18 are connected by a belt 19. One end of the second rotating rod 21 extends into the interior of the cleaning box 1 and is connected to a second rotating shaft parallel to the rotating shaft. Of course, a detachable roller brush is also mounted on the outer circumference of the second rotating shaft. In this embodiment, the roller brush 15 is mounted to the outer surface of the rotating shaft and the second rotating shaft by bolts, which facilitates disassembly and replacement.

[0043] In order to ensure the cleaning effect, a heater 22 is installed on the inner bottom wall of the cleaning box 1 to heat the cleaning water in the cleaning box before cleaning.

[0044] In this embodiment, considering the need for environmental protection and water conservation, a water recycling mechanism is provided below the cleaning tank. Figure 2-4As shown, the circulating water mechanism 4 includes a water tank 401, a water purifier 406, a clean water tank 408 and a filter plate 418, wherein the filter plate 418 is fixedly mounted on the inner bottom wall of the cleaning tank 1, serving as the first layer of filtration for the sewage after cleaning. The clean water tank 408 is fixedly mounted on the bottom surface of the cleaning tank 1, and the top of the clean water tank 408 is open to receive the sewage filtered from the filter plate. The inner wall of the clean water tank 408 is fixedly connected to a support bar 409, and the interior of the clean water tank 408 is provided with a detachable filter element 410, which can perform a second layer of filtration on the sewage. The outer surface of the filter element 410 is slidably connected to the support bar 409, and the outer surface of the filter element 410 is fixedly connected to a handle 411.

[0045] like Figure 2 As shown, a water purifier 406 is provided below the clean water tank 408, and the water purifier 406 is connected to the clean water tank 408 through a connecting pipe 407, which performs a third filtration on the sewage, further improving the sewage filtering and purification effect, and ensuring the cleaning effect of the cleaning brush while realizing circulating water.

[0046] A water tank 401 is mounted above the base plate 3. A water pump 402 is installed within the water tank 401. The input of the water pump 402 is connected to a water purifier 406 via an inlet pipe 404, and the output is connected to the interior of the cleaning tank via an outlet pipe 403. An electric valve 405 is mounted on the outer surface of the inlet pipe 404 to control the opening and closing of the water inlet.

[0047] In addition, in order to facilitate the removal and replacement of the filter element, the filter element can be slidably installed in the clean water tank, such as Figure 3 As shown, the outer surface of the clean water tank 408 is fixedly connected to a first connecting plate 412, and the bottom surface of the first connecting plate 412 is fixedly connected to a telescopic rod 413. The telescopic rod includes a fixed barrel and a telescopic rod. The telescopic rod slides relatively within the fixed barrel to limit and prevent shaking. The bottom of the telescopic rod 413 is fixedly connected to a second connecting plate 415, and the bottom surface of the second connecting plate 415 is fixedly connected to an L-shaped clip 416. The lower end of the L-shaped clip 416 contacts the outer surface of the filter element 410 to limit and fix the filter element. When the telescopic rod 413 contracts, it drives the second connecting plate 415 to slide upward, and the L-shaped clip 416 no longer limits the filter element, and the filter element 410 can then be removed through the handle 411.

[0048] To enhance the stability of the L-shaped clamp's retaining action, a spring 414 is sleeved around the outer periphery of the telescopic rod. One end of the spring 414 is fixedly connected to the first connecting plate 412, and the other end is fixedly connected to the upper surface of the second connecting plate 415. The elastic force of the spring during contraction ensures that the L-shaped clamp stably retains the filter element. Furthermore, a grip plate 417 is fixedly attached to the outer surface of the second connecting plate 415 for easier operation.

[0049] Among them, in this embodiment, a spare plugging screw is also installed inside the cleaning box 1, and the plugging screw is threadedly connected to the cleaning box. When the filter element is blocked and cannot drain water, the spare plugging screw can be opened to drain water, which serves as an emergency function.

[0050] like Figure 2 There are four support columns 2, all of which are arranged at the four corners of the bottom surface of the cleaning box 1. There are four fixing blocks 7, all of which are arranged on the outer surface of the disassembly plate 6.

[0051] like Figure 4 As shown, since the second rotating shaft is arranged parallel to the rotating shaft and has the same function, two roller brushes 15 and two synchronization rods 16 are provided, which are installed on the rotating shaft and the second rotating shaft inside the cleaning box 1 in a symmetrical state. Similarly, two cleaning brushes 11, screw rod 8, rotating handle 9, first synchronization plate 10 and other structures for cleaning the roller brush are provided.

[0052] like Figure 3 As shown, four support bars 409 are provided, all of which are installed inside the clean water tank 408 .

[0053] The working principle of this embodiment is:

[0054] By rotating the rotating handle 9, the rotating handle 9 drives the screw rod 8 to rotate, and the screw rod 8 drives the first synchronous plate 10, the cleaning brush 11, the second synchronous plate 12 and the slide rod 13 to move toward the roller brush 15. The position of the cleaning brush 11 can be adjusted according to the width and position of the roller brush 15 to ensure that the cleaning brush is in contact with the roller brush.

[0055] By unscrewing the bolts on the fixing block 7, the fixing block 7, the disassembly plate 6, the synchronization rod 16 and the components on the left side can be extracted from the rotating shaft 14, and then the fixing bolts on the roller brush 15 are unscrewed, and the roller brush can be removed for replacement.

[0056] Water is added to the cleaning tank 1 through an external tap. After the tank is filled, the heater 22 is started to heat the water, and then the motor 5 is started. The motor 5 drives the rotating shaft 14 to rotate, and the rotating shaft 14 synchronously drives the synchronization rod 16, the first rotating rod 17, the first pulley 18, and the roller brush 15 to rotate. The first pulley 18 drives the second pulley 20 to rotate through the belt 19. The second pulley 20 drives the second rotating rod 21 to rotate. The second rotating rod 21 drives the second rotating shaft to rotate, thereby achieving synchronous rotation and cleaning of the two roller brushes 15. The rotating roller brush 15 contacts the cleaning brush 11, thereby effectively cleaning the roller brush.

[0057] When the water in the cleaning tank 1 becomes turbid, open the electric valve 405 and start the water pump 402. The water pump 402 pumps water into the cleaning tank 1 through the water inlet pipe 404, the water purifier 406, the connecting pipe 407, the clean water tank 408, the filter element 410, and the filter plate 418. Then, the water is triple-filtered through the filter plate 418, the filter element 410, and the water purifier 406 to effectively filter out impurities. The filtered water is then transported into the cleaning tank 1 through the outlet pipe 403, completing the water circulation.

[0058] In addition, after using it for a period of time, push the grip plate 417 upward, and the grip plate 417 drives the spring 414 and the telescopic rod 413 to contract, while driving the second connecting plate 415 and the L-shaped clamp 416 to move upward until the L-shaped clamp 416 leaves the filter element 410 and loses its limiting effect. Then, by pulling the handle 411, the filter element 410 can be quickly and conveniently pulled out for replacement or cleaning.

[0059] It should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Those skilled in the art will appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A roller brush self-cleaning device for a tobacco conveyor belt, characterized in that: The utility model comprises a bottom plate, a cleaning box and a water circulation mechanism are installed above the bottom plate; a motor is installed on one side of the cleaning box, an output end of the motor is connected to a rotating shaft, the rotating shaft is arranged inside the cleaning box and is rotatably connected to the cleaning box, and a detachable roller brush is provided on the outer circumference of the rotating shaft; A screw is provided on one side of the cleaning box, one end of which penetrates into the interior of the cleaning box and is rotatably connected to a first synchronous plate, and a cleaning brush arranged parallel to the roller brush is fixedly connected to the bottom surface of the first synchronous plate; one end of the first synchronous plate located outside the cleaning box is connected to a rotating handle for driving the screw and thereby driving the cleaning brush to move closer to or away from the roller brush; The circulating water mechanism includes a water tank and a clean water tank installed at the bottom of the cleaning tank. A filter element is provided in the clean water tank. One end of the water tank is connected to the clean water tank, and the other end is connected to the inside of the cleaning tank.

2. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 1, characterized in that: The inner bottom wall of the cleaning box is provided with a filter plate.

3. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 1, characterized in that: The circulating water mechanism also includes a water purifier, which is connected to the clean water tank through a connecting pipe. The water tank is connected to the water purifier through a water inlet pipe and is connected to the inside of the cleaning tank through a water outlet pipe.

4. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 3, characterized in that: An electric valve is installed on the outer surface of the water inlet pipe.

5. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 1, characterized in that: A support bar is fixedly provided on the inner wall of the clean water tank, a filter core slidably connected to the support bar is provided below the support bar, and a handle is fixedly connected to the outer wall of the filter core.

6. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 5, characterized in that: The outer surface of the clean water tank is fixedly connected to a first connecting plate, the bottom of the first connecting plate is connected to a telescopic rod, the bottom of the telescopic rod is fixedly connected to a second connecting plate, and the bottom surface of the second connecting plate is fixedly provided with an L-shaped clip, and the L-shaped clip contacts the outer surface of the filter element.

7. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 6, characterized in that: The outer sleeve of the telescopic rod is provided with a spring, and the two ends of the spring are fixedly connected to the first connecting plate and the second connecting plate respectively; the outer surface of the second connecting plate is fixedly connected to the gripping plate.

8. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 1, characterized in that: A disassembly plate is slidably connected to one side of the cleaning box, and one end of the rotating shaft is rotatably connected to the disassembly plate; an outer surface of the disassembly plate is connected to a fixing block, and the fixing block is bolted to the cleaning box.

9. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 1, characterized in that: A heater is installed on the inner bottom wall of the cleaning box.

10. A roller brush self-cleaning device for a tobacco conveyor belt according to claim 1, characterized in that: The roller brush is connected with the rotating shaft bolts.

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