Adjustable screening cleaning device for tobacco machine
By designing an adjustable screening and cleaning device, the sliding of the chute plate and brush assembly removes screen residues. Combined with motor-driven vibration, this solves the problem of difficult removal of tobacco impurities from the screen, improves screening efficiency and equipment stability, and reduces maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO HUNAN IND CORP
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-24
AI Technical Summary
The residual tobacco and impurities on the screens of existing tobacco shredding machines are difficult to remove completely, resulting in a decline in screening performance, affecting the quality of tobacco and production efficiency. In addition, frequent disassembly and cleaning increases the workload of operators and the cost of equipment maintenance.
An adjustable screening and cleaning device for tobacco shreds was designed. The device uses a sliding plate to drive the support rod and brush assembly to slide, and a rotating motor drives the eccentric shaft to generate vibration, thereby automatically removing tobacco shreds and impurities from the screen. The height of the machine frame can be adjusted by controlling the motor to adapt to different screening requirements.
It effectively removes tobacco and impurities from the screen, maintains the good performance of the screening components, improves screening efficiency, reduces equipment vibration interference, extends the service life of the screen, and reduces maintenance costs.
Smart Images
Figure CN224539466U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an adjustable screening and cleaning device for tobacco processing, belonging to the technical field of screening and cleaning devices. Background Technology
[0002] In the tobacco machinery manufacturing industry, tobacco processing is a crucial step in the tobacco production process. The purpose of tobacco processing is to transform tobacco leaves into shredded tobacco that meets quality requirements for subsequent cigarette rolling. During tobacco processing, various treatments are required, including sieving and cleaning, to remove impurities and ensure the purity and quality of the shredded tobacco. As the tobacco industry's quality requirements for shredded tobacco continue to rise, the tobacco processing process needs constant adjustment and optimization. It effectively separates shredded tobacco from impurities using sieves to ensure that the shredded tobacco entering subsequent processes meets quality standards.
[0003] In existing technologies, after long-term operation, a large amount of tobacco shreds and impurities accumulate on the screens of some screening devices. Due to the lack of an effective cleaning mechanism or the cumbersome cleaning methods, these residues are difficult to remove completely. The residual tobacco shreds and impurities not only clog the screen mesh, reducing its permeability, but also alter the screening accuracy, leading to a significant decline in the screening performance of the screening components, affecting the quality of the tobacco shreds and production efficiency. Furthermore, frequent disassembly and cleaning of the screens increases the workload of operators and can shorten the screen's lifespan due to mechanical damage during disassembly and assembly, increasing equipment maintenance costs. Therefore, an adjustable screening and cleaning device for tobacco processing is proposed to solve these problems. Utility Model Content
[0004] The purpose of this invention is to overcome the problem that residual tobacco and impurities on the screen of some devices are difficult to remove, which leads to a decrease in the screening performance of the screening components.
[0005] To solve the above-mentioned technical problems, this utility model is implemented using the following technical solution: An adjustable screening and cleaning device for tobacco processing is provided, comprising a frame, a connecting rod fixedly connected to the top of the frame, a cleaning mechanism disposed outside the connecting rod, a connecting plate rotatably connected to the outside of the frame, a lifting rod rotatably connected inside the connecting plate, a base frame slidably connected to the outside of the lifting rod, an adjustment mechanism disposed at the top of the base frame, a shock-absorbing component fixedly connected to the top of the base frame, the cleaning mechanism comprising a sliding plate, the inside of the sliding plate slidably connected to the outside of the connecting rod, a support rod fixedly connected to the outside of the sliding plate, a rotating tube fixedly connected to the other end of the support rod, a slider slidably connected to the outside of the support rod, a sliding rod fixedly connected to the bottom of the slider, a brush assembly slidably connected to the outside of the sliding rod, and a screening component fixedly connected inside the frame. Furthermore, the adjustment mechanism includes two outer ring plates, the bottom of the two outer ring plates are fixedly connected to the top of the base frame, a limiting tube is fixedly connected to the adjacent side of each outer ring plate, a rotating motor is fixedly connected to the more distant side of each outer ring plate, an eccentric shaft is fixedly connected to the output end of each of the two rotating motors, a fixing rod is slidably connected to the adjacent side of each of the two eccentric shafts, and the outside of the fixing rod is fixedly connected to the bottom of the machine frame; Furthermore, a control motor is fixedly connected to the top of the base frame, and a threaded rod is fixedly connected to the output end of the control motor. The threaded rod is threadedly connected to the inside of the lifting rod. Furthermore, the shock absorption assembly includes a support plate, the outside of which is fixedly connected to the inner side of the base frame, and two shock absorption springs are fixedly connected to the top of the support plate. The other ends of the two shock absorption springs are rotatably connected to a limiting seat, and the outside of which is fixedly connected to the bottom of the machine frame. Furthermore, the brush assembly includes a top brush, the inside of which is slidably connected to the outside of the slide rod, a middle brush slidably connected to the outside of the slide rod, and a bottom brush slidably connected to the outside of the slide rod. Furthermore, the screening assembly includes a large screen, the outside of which is fixedly connected to the inside of the machine frame, a medium screen is fixedly connected to the inside of the machine frame, and a small screen is fixedly connected to the inside of the machine frame. Furthermore, the outer surface of the bottom brush is slidably connected to the bottom of the machine frame, the outer surface of the middle brush is slidably connected to the inside of the machine frame, and the outer surface of the top brush is fixedly connected to the top of the machine frame. Furthermore, the bottom of the top brush is slidably connected to the top of the large screen, the top of the bottom brush is slidably connected to the small screen, and the inside of the middle brush is slidably connected to the outside of the middle screen.
[0006] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This invention utilizes the sliding of a sliding plate on a connecting rod to move a support rod and a rotating tube. Simultaneously, the sliding of a slider on the support rod causes the sliding rod and brush assembly to follow the movement. The rotating tube changes its angle as the lifting rod moves, causing the sliding rod and brush assembly to also change their angle. This achieves the goal of removing residual tobacco and impurities from the screen, ensuring that the screening assembly maintains good screening performance.
[0007] This invention controls a motor to drive a threaded rod to rotate, which in turn causes a lifting rod to slide on the base frame. The height of the frame is precisely adjusted via a connecting plate, adapting to different tobacco shredding requirements. The rotating motor drives an eccentric shaft to rotate, and the centrifugal force generated by its eccentric structure is transmitted through a fixed rod, causing the frame to vibrate. A limiting tube ensures the stability of the eccentric shaft's movement trajectory, thereby accelerating the flow of tobacco shredding and improving sieving efficiency. This solves the problems of low sieving efficiency and significant vibration interference in existing tobacco shredding devices. Attached Figure Description
[0008] Figure 1 This is a three-dimensional schematic diagram of the adjustable screening and cleaning device for tobacco shreds proposed in this utility model; Figure 2 This is a schematic diagram of the connecting rod of the adjustable screening and cleaning device for tobacco shredding proposed in this utility model; Figure 3 This is a schematic diagram of the base frame of the adjustable screening and cleaning device for tobacco shreds proposed in this utility model; Figure 4 This is a schematic diagram of the slider of the adjustable screening and cleaning device for tobacco shredding proposed in this utility model.
[0009] Figure label: 1. Machine frame; 2. Connecting rod; 3. Cleaning mechanism; 31. Slide plate; 32. Support rod; 33. Rotary tube; 34. Slider; 35. Slide bar; 36. Brush assembly; 361. Top brush; 362. Middle brush; 363. Bottom brush; 37. Screening assembly; 371. Large screen; 372. Middle screen; 373. Small screen; 4. Connecting plate; 5. Lifting rod; 6. Adjusting mechanism; 61. Control motor; 62. Threaded rod; 63. Outer ring plate; 64. Limiting tube; 65. Rotating motor; 66. Eccentric shaft; 67. Fixed rod; 7. Base frame; 8. Shock absorption assembly; 81. Support plate; 82. Shock absorption spring; 83. Limiting seat. Detailed Implementation
[0010] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0011] 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; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0012] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of an adjustable screening and cleaning device for tobacco shreds, comprising a frame 1. The frame 1 serves as the main frame of the entire device, providing installation and support, and forming a working space for tobacco shred screening and cleaning. A connecting rod 2 is fixedly connected to the top of the frame 1, supporting a cleaning mechanism 3. The cleaning mechanism 3 is located outside the connecting rod 2. A connecting plate 4 is rotatably connected to the outside of the frame 1, connecting the frame 1 and a lifting rod 5. The lifting rod 5 is rotatably connected inside the connecting plate 4, enabling the lifting function of the frame 1. A base frame 7 is slidably connected to the outside of the lifting rod 5, supporting the frame 1 and the adjustment mechanism 6, providing a stable installation platform, and bearing various forces generated during device operation, ensuring the overall stability and reliability of the device. An adjustment mechanism 6 is located at the top of the base frame 7, and a shock-absorbing component 8 is fixedly connected to the top of the base frame 7. The cleaning mechanism 3 includes a sliding plate 31, which slides outside the connecting rod 2, allowing the cleaning mechanism 3 to slide along with the frame 1. The interior of the sliding plate 31 is slidably connected to the exterior of the connecting rod 2. A support rod 32 is fixedly connected to the exterior of the sliding plate 31, serving both connecting and supporting functions. A rotating tube 33 is fixedly connected to the other end of the support rod 32, used for rotation and connection. A slider 34 is slidably connected to the exterior of the support rod 32, allowing the slider 34 to slide outside the support rod 32 and drive the sliding rod 35 to move accordingly. The bottom of the slider 34 is fixedly connected to the sliding rod 35, which serves both connecting and guiding functions. A brush assembly 36 is slidably connected to the outside of the slide rod 35. The brush assembly 36 includes a top brush 361, which is used to clean the upper surface of the large screen 371, removing residual tobacco and impurities to ensure the screening effect of the large screen 371. The top brush 361 is slidably connected to the outside of the slide rod 35. A middle brush 362 is slidably connected to the outside of the slide rod 35, which is used to clean the upper surface of the middle screen 372 and... The lower surface of the large screen 371 and the upper surface of the small screen 373 are cleaned simultaneously to remove tobacco residue and impurities from the medium screen 372, large screen 371, and small screen 373, ensuring the normal screening function of the medium screen 372. A bottom brush 363 is slidably connected to the outside of the slide rod 35. The bottom brush 363 is used to clean the lower surface of the small screen 373 to remove tobacco residue and impurities from the small screen 373, ensuring the screening effect of the small screen 373. A screening assembly 37 is fixedly connected inside the machine frame 1. The screening assembly 37 includes a large screen 371, which is used for preliminary screening of tobacco shreds, filtering out larger shreds. The large screen 371 is externally fixedly connected inside the machine frame 1. A medium screen 372 is fixedly connected inside the machine frame 1. The medium screen 372 further screens the tobacco shreds based on the preliminary screening by the large screen 371, filtering out medium-sized tobacco shreds. A small screen is also fixedly connected inside the machine frame 1. 373, the small screen 373 is used to screen out fine tobacco shreds that meet the specifications, and to screen out tobacco particles and impurities. The outer side of the bottom brush 363 is slidably connected to the bottom of the frame 1. The outer side of the middle brush 362 is slidably connected to the inside of the frame 1. The outer side of the top brush 361 is fixedly connected to the top of the frame 1. The bottom of the top brush 361 is slidably connected to the top of the large screen 371. The top of the bottom brush 363 is slidably connected to the small screen 373. The inside of the middle brush 362 is slidably connected to the outside of the middle screen 372.
[0013] Reference Figures 1 to 3The adjusting mechanism 6 includes two outer ring plates 63. The outer ring plates 63 are used to mount limiting tubes 64 and rotating motors 65, providing a certain amount of space for the movement of the eccentric shaft 66 and the fixed rod 67. The bottoms of the two outer ring plates 63 are fixedly connected to the top of the base frame 7. Limiting tubes 64 are fixedly connected to adjacent sides of the outer ring plates 63, limiting the movement trajectory of the eccentric shaft 66 and preventing it from shifting or wobbling during movement. Rotating motors 65 are fixedly connected to the more distant sides of the outer ring plates 63. The rotating motors 65 are the power source for the vibration of the adjusting mechanism 6, driving the eccentric shaft 66 to rotate, causing the frame 1 to vibrate. The output ends of the two rotating motors 65 are fixedly connected to the eccentric shaft 66. The eccentric shaft 66 generates centrifugal force through its own eccentric rotation, converting the rotational motion of the rotating motor 65 into vibration of the frame 1. Fixed rods 67 are slidably connected to adjacent sides of the two eccentric shafts 66, transmitting the centrifugal force generated by the eccentric shaft 66. The fixed rod 67 is externally fixedly connected to the bottom of the frame 1, and the control motor 61 is fixedly connected to the top of the base frame 7. The control motor 61 is the power source of the adjustment mechanism 6, providing power for the rotation of the threaded rod 62. By controlling the forward and reverse rotation and speed adjustment of the control motor 61, precise control of the height of the lifting rod 5 and the frame 1 can be achieved. The output end of the control motor 61 is fixedly connected to the threaded rod 62. The threaded rod 62 converts the rotational motion of the control motor 61 into the linear motion of the lifting rod 5 through its own rotation. The threaded rod 62 is threadedly connected inside the lifting rod 5. The vibration damping assembly 8 includes a support plate 81, which supports the vibration damping springs 82 and the limiting seat 83, providing a mounting base for the vibration damping assembly 8. The support plate 81 is externally fixedly connected to the inner side of the base frame 7. Two vibration damping springs 82 are fixedly connected to the top of the support plate 81. The vibration damping springs 82 absorb and buffer the impact force generated by the vibration of the machine frame 1 through their own elastic deformation. The other end of the two vibration damping springs 82 is rotatably connected to the limiting seat 83. The limiting seat 83 is used to transmit the impact force generated by the vibration of the machine frame 1 to the vibration damping springs 82, while limiting the vibration amplitude of the machine frame 1, preventing the machine frame 1 from vibrating excessively, and ensuring the stability and safety of the machine frame 1 during vibration. The limiting seat 83 is externally fixedly connected to the bottom of the machine frame 1.
[0014] Working principle: Tobacco enters from the top of the frame 1 and is screened sequentially through a large screen 371, a medium screen 372, and a small screen 373 under gravity. Simultaneously, the motor 61 drives the threaded rod 62 to rotate, causing the lifting rod 5 to slide on the base frame 7. The height of the frame 1 is adjusted through the connecting plate 4. The rotating motor 65 drives the eccentric shaft 66 to rotate. The eccentric structure of the eccentric shaft 66 generates centrifugal force, which is transmitted through the fixed rod 67 to cause the frame 1 to vibrate. The limiting tube 64 ensures the stability of the eccentric shaft 66's movement trajectory, promotes the flow and screening of tobacco, and improves screening efficiency. The damping spring 82 in the shock absorption assembly 8 absorbs the vibration impact of the frame 1 through elastic deformation. The support plate 81 and the limiting seat 83 work together to reduce the impact of vibration on the device and the environment. During cleaning, the slide plate 31 slides on the connecting rod 2, driving the support rod 32, rotating tube 33 and other components to move. The slider 34 slides on the support rod 32, causing the slide rod 35 to drive the brush assembly 36 to follow the movement. The rotating tube 33 moves with the lifting rod 5, changing its own angle so that the slide rod 35 and the brush assembly 36 change their angle accordingly. The top brush 361 contacts the large screen 371, the middle brush 362 contacts the large screen 371, the middle screen 372 and the small screen 373, and the bottom brush 363 contacts the small screen 373. By following the slider 34, the residual tobacco and impurities on the screen are removed through sliding friction, ensuring that the screening component 37 maintains good screening performance.
[0015] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An adjustable screening and cleaning device for tobacco processing, comprising a frame (1), characterized in that, Also includes: A connecting rod (2) is fixedly connected to the top of the frame (1). A cleaning mechanism (3) is provided on the outside of the connecting rod (2). A connecting plate (4) is rotatably connected to the outside of the frame (1). A lifting rod (5) is rotatably connected to the inside of the connecting plate (4). A base frame (7) is slidably connected to the outside of the lifting rod (5). An adjustment mechanism (6) is provided on the top of the base frame (7). A shock-absorbing component (8) is fixedly connected to the top of the base frame (7). The cleaning mechanism (3) includes a chute plate (31), the inside of which is slidably connected to the outside of the connecting rod (2), a support rod (32) is fixedly connected to the outside of the chute plate (31), a rotating tube (33) is fixedly connected to the other end of the support rod (32), a slider (34) is slidably connected to the outside of the support rod (32), a sliding rod (35) is fixedly connected to the bottom of the slider (34), a brush assembly (36) is slidably connected to the outside of the sliding rod (35), and a screening assembly (37) is fixedly connected to the inside of the frame (1).
2. The adjustable screening and cleaning device for tobacco processing as described in claim 1, characterized in that, The adjustment mechanism (6) includes two outer ring plates (63). The bottom of the two outer ring plates (63) is fixedly connected to the top of the base frame (7). A limiting tube (64) is fixedly connected to the adjacent side of the outer ring plates (63). A rotating motor (65) is fixedly connected to the farther side of the outer ring plates (63). An eccentric shaft (66) is fixedly connected to the output end of the two rotating motors (65). A fixing rod (67) is slidably connected to the adjacent side of the two eccentric shafts (66). The outside of the fixing rod (67) is fixedly connected to the bottom of the frame (1).
3. The adjustable screening and cleaning device for tobacco processing as described in claim 2, characterized in that, A control motor (61) is fixedly connected to the top of the base frame (7), and a threaded rod (62) is fixedly connected to the output end of the control motor (61). The threaded rod (62) is threadedly connected to the inside of the lifting rod (5).
4. The adjustable screening and cleaning device for tobacco processing as described in claim 1, characterized in that, The shock absorption assembly (8) includes a support plate (81), the outside of which is fixedly connected to the outside of the base frame (7). Two shock absorption springs (82) are fixedly connected to the top of the support plate (81), and the other end of the two shock absorption springs (82) is rotatably connected to a limiting seat (83). The outside of the limiting seat (83) is fixedly connected to the bottom of the frame (1).
5. The adjustable screening and cleaning device for tobacco processing as described in claim 1, characterized in that, The brush assembly (36) includes a top brush (361), the inside of which is slidably connected to the outside of the slide bar (35), the outside of which is slidably connected to a middle brush (362), and the outside of which is slidably connected to a bottom brush (363).
6. The adjustable screening and cleaning device for tobacco processing according to claim 5, characterized in that, The screening component (37) includes a large screen (371), the outside of which is fixedly connected to the inside of the machine frame (1), a medium screen (372) is fixedly connected to the inside of the machine frame (1), and a small screen (373) is fixedly connected to the inside of the machine frame (1).
7. The adjustable screening and cleaning device for tobacco processing as described in claim 6, characterized in that, The bottom of the top brush (361) is slidably connected to the top of the large screen (371), the top of the bottom brush (363) is slidably connected to the small screen (373), and the inside of the middle brush (362) is slidably connected to the outside of the middle screen (372).
8. The adjustable screening and cleaning device for tobacco processing as described in claim 5, characterized in that, The bottom brush (363) is externally slidably connected to the bottom of the frame (1), the middle brush (362) is externally slidably connected to the inside of the frame (1), and the top brush (361) is externally fixedly connected to the top of the frame (1).