Tobacco threshing and redrying pretreatment and separating device
By designing a flipping mechanism and a dynamic cleaning brush to clean both sides of the tobacco leaves, the problem of incomplete cleaning by existing equipment is solved, the purity of the tobacco leaves and the stability of equipment operation are improved, and the quality of subsequent processing is ensured.
Patent Information
- Application Number
- CN202522128937.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-09
AI Technical Summary
Existing tobacco leaf threshing and re-drying pretreatment equipment cannot thoroughly clean both sides of the tobacco leaves, leaving foreign matter residues that affect the stability of equipment operation and product quality.
A pre-treatment and segmentation device for tobacco leaf threshing and re-drying was designed. A cylinder drives a cleaning brush to perform preliminary brushing on the front side of the tobacco leaf. A flipping mechanism turns the tobacco leaf over, and a motor-driven cleaning brush performs dynamic cleaning on the back side. Combined with a knob to adjust the height of the placement rack and a pressure roller for flexible pressing, a double-sided cleaning effect is ensured.
It achieves efficient cleaning of both sides of tobacco leaves, improves the purity of raw materials and the stability of equipment operation, and reduces equipment failures and product quality problems.
Smart Images

Figure CN224670835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco processing technology, and in particular to a tobacco leaf threshing, re-drying, pre-treatment, and segmentation device. Background Technology
[0002] Tillage and re-drying is a core process in modern tobacco processing. Its main purpose is to efficiently separate the stems from the leaves using threshing and air separation technology, and then re-dry the separated leaves and stems separately to reduce moisture, stabilize quality, and facilitate storage and aging. In the pre-treatment stage of threshing and re-drying, tobacco leaves typically undergo processes such as moistening, unbundling, conveying, and cutting. Moistening effectively increases the temperature and moisture content of the tobacco leaves, enhancing their flexibility and resistance to breakage, creating favorable conditions for subsequent threshing and air separation. However, in actual production, tobacco leaves are highly susceptible to carrying foreign matter such as sand, dust, and plant residues during field harvesting, transportation, and storage. These impurities not only affect the purity of the tobacco leaves but may also damage equipment, reduce leaf yield, and even affect the sensory quality and safety of the final cigarette product.
[0003] Currently, most tobacco leaf threshing and re-drying pretreatment equipment relies primarily on simple screens or airflow dust collectors for surface cleaning before the tobacco leaves enter the cutting or threshing process. However, these devices generally suffer from incomplete cleaning and cannot simultaneously clean both sides of the tobacco leaves. During transport, tobacco leaves are typically transported with one side facing upwards, making it difficult to effectively remove adhering dust and small foreign objects from the bottom side in contact with the conveyor belt. Furthermore, existing cleaning structures are mostly static scrapers or fixed brushes, which can easily damage the tobacco leaves and have limited effectiveness in removing tightly adhered impurities. More seriously, if foreign objects are not removed in time, they may become stuck in the cutter rollers or air distribution system during subsequent high-speed cutting or threshing, causing equipment malfunctions or generating debris, severely impacting production continuity and product quality.
[0004] Therefore, there is an urgent need to design a tobacco leaf threshing and re-drying pretreatment and segmentation device with both front and back cleaning functions. Summary of the Invention
[0005] In order to overcome the shortcomings of existing devices that cannot effectively clean both sides of tobacco leaves and are prone to leaving foreign matter, this utility model provides a tobacco leaf threshing and re-drying pretreatment and segmentation device.
[0006] The technical solution of this utility model: This utility model provides a tobacco leaf threshing and re-drying pre-treatment and segmentation device, including a machine body, a motor, a segmenter, a mounting frame, a connecting plate, a placement frame, a connecting plate, a rotating rod, a connecting rod, a cylinder, a hinge plate, a threaded rod, a cylinder, a cleaning brush, a motor, a threaded rod, a guide rod, and a cleaning brush. A motor is mounted on the machine body, and the segmenter is connected to the output shaft of the motor. A hinge plate is mounted on one side of the machine body, and a cylinder is hinged to the hinge plate. A connecting rod is connected to the piston rod of the cylinder, and a connecting rod is rotatably connected to the connecting rod. Connecting plate two has symmetrically mounted rotating rods, all of which are rotatably connected to connecting plate two. Connecting plate two has a mounting bracket, on which a threaded rod one is rotatably mounted. Connecting plate one is threadedly connected to threaded rod one. Connecting plate one has a placement bracket, on which cylinder two is symmetrically mounted. A cleaning brush one is connected to the piston rod of cylinder two. Motor two is mounted on the machine body, and threaded rod two is connected to the output shaft of motor two. Guide rod is mounted on the machine body, and cleaning brush two is threadedly connected to threaded rod two. The end of cleaning brush two away from threaded rod two is slidably connected to guide rod.
[0007] Preferably, it also includes a knob, which is mounted on the threaded rod.
[0008] Preferably, it also includes a pressure roller and an elastic element. Mounting rods are symmetrically mounted on the machine body. The pressure rollers are slidably mounted on the mounting rods. An elastic element is sleeved on the mounting rods. One end of the elastic element is connected to the pressure roller, and the other end is connected to the mounting rod.
[0009] Preferably, the machine body has multiple guide holes.
[0010] Preferably, the knob is provided with a handle.
[0011] Preferably, the middle part of the placement rack is a filter structure.
[0012] The beneficial effects of this utility model are: This utility model uses a second cylinder to drive a pair of cleaning brushes to perform a preliminary brushing of the front side of the tobacco leaves. When the first cylinder is started, the entire mounting frame, along with the placement frame and the tobacco leaves, is rotated smoothly through the transmission. When the second motor is started, the second cleaning brush cleans the tobacco leaves, achieving an effective cleaning effect on both sides of the tobacco leaves.
[0013] This invention improves operational convenience and cutting accuracy by adjusting the height of the placement frame by rotating the threaded rod and by using the pressing roller to flatten and press the tobacco leaves. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2This is a three-dimensional structural masking diagram of the present invention.
[0016] Figure 3 This is a left view of the three-dimensional structure of this utility model.
[0017] The markings in the attached diagram are as follows: 1-Machine body, 101-Motor 1, 102-Divider, 2-Mounting frame, 201-Connecting plate 1, 202-Placement frame, 203-Connecting plate 2, 204-Rotating rod, 205-Connecting rod, 206-Cylinder 1, 207-Hinge plate, 3-Knob, 301-Threaded rod 1, 4-Cylinder 2, 401-Cleaning brush 1, 5-Motor 2, 501-Threaded rod 2, 502-Guide rod, 503-Cleaning brush 2, 6-Pressure roller, 601-Elastic element, 7-Guide hole. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Example 1: A tobacco leaf threshing and re-drying pretreatment and segmentation device, such as... Figures 1-3As shown, the machine includes a body 1, a motor 101, a divider 102, a mounting frame 2, a connecting plate 201, a placement frame 202, a connecting plate 203, a rotating rod 204, a connecting rod 205, a cylinder 206, a hinge plate 207, a threaded rod 301, a cylinder 4, a cleaning brush 401, a motor 5, a threaded rod 501, a guide rod 502, and a cleaning brush 503. The motor 101 is located on the front side of the body 1, and the divider 102 is mounted on the output shaft of the motor 101 for dividing the processed parts. The pre-treated tobacco leaves are uniformly cut to ensure the efficiency of subsequent leaf threshing and leaf yield. A hinge plate 207 is installed on the rear side of the machine body 1. A cylinder 206 is hinged to the middle of the hinge plate 207. A connecting rod 205 is connected to the top of the piston rod of the cylinder 206. A connecting plate 203 is rotatably installed on the connecting rod 205. Rotating rods 204 are symmetrically arranged on the hinge plate 207. The two rotating rods 204 are rotatably connected to the two sides of the connecting plate 203 respectively, forming a stable connecting rod rotation. Mount 03 is equipped with a mounting bracket 2. A threaded rod 301 is rotatably mounted in the center of the mounting bracket 2. A connecting plate 201 is threaded onto the threaded rod 301. A placement bracket 202 is connected to the connecting plate 201. The placement bracket 202 has a frame structure, with a filter screen in the middle to facilitate the discharge of dust and fine impurities during cleaning. A cylinder 4 is symmetrically mounted on the placement bracket 202. A cleaning brush 401 is connected to the piston rod of the cylinder 4, allowing control of the up-and-down movement of the cleaning brush 401. The machine moves to achieve flexible brushing of the front side of the tobacco leaves. A motor 2 5 is set in the middle of the machine body 1. A threaded rod 2 501 is connected to the output shaft of the motor 2 5, and together with the parallel guide rod 502, they form a linear motion guide system. A cleaning brush 2 503 is connected to the motor 2 5. When the motor 2 5 is started, it can drive the cleaning brush 2 503 to reciprocate along the tobacco leaf conveying direction, and perform efficient and uniform dynamic cleaning on the back side of the exposed tobacco leaves after flipping, thoroughly removing sand, broken stems and other attached impurities, and significantly improving the purity of the raw materials.
[0020] When pre-treatment cleaning and cutting of tobacco leaves are required before threshing and re-drying, the operator first neatly arranges the tobacco leaves to be processed on the placement rack 202. Then, the second cylinder 4 is activated, driving the first cleaning brush 401 to move smoothly downwards, adhering to the surface of the tobacco leaves, and performing a preliminary brushing of the front of the tobacco leaves, effectively removing attached dust, broken leaves, and some light foreign objects. After the front cleaning is completed, the first cylinder 206 is activated, driving the connecting rod 205 to move up and down. The connecting rod 205 drives the second connecting plate 203 to move. During this process, the second connecting plate 203 rotates around the two rotating rods 204 on both sides as fulcrums. At the same time, the first cylinder 206 itself also rotates synchronously on the hinge plate 207, forming a stable multi-link flipping mechanism, so that the entire mounting rack 2-link The tobacco leaves are smoothly flipped over along with the placement rack 202, accurately falling onto the conveyor belt below the machine body 1. During the conveying process, the back of the tobacco leaves, which was originally attached to the placement rack 202, is completely exposed. At this time, motor 2 5 starts, driving the threaded rod 2 501 to rotate. Under the guidance of the threaded transmission and the guide rod 502, the cleaning brush 2 503 moves back and forth along the tobacco leaf conveying direction, performing a comprehensive and uniform dynamic cleaning of the back of the tobacco leaves, thoroughly removing hidden sand, particles and other impurities. Finally, the tobacco leaves that have been cleaned on both sides are conveyed to the splitting machine 102, where they are precisely cut under the drive of motor 101, providing clean and uniform raw materials for the subsequent leaf threshing and air-splitting process, significantly improving processing quality and equipment operation stability.
[0021] Example 2: Based on Example 1, such as Figure 1 As shown, it also includes a knob 3, a pressing roller 6, and an elastic element 601. A knob 3 is located at the top of the threaded rod 301, and a handle is installed on the knob 3 for easy manual rotation and adjustment by the operator. This allows for precise control of the height of the placement rack 202 without the use of tools, improving the flexibility of the equipment and the human-machine interface. Installation rods are symmetrically arranged in the middle of the machine body 1, and a pressing roller 6 is slidably mounted on each of the installation rods. An elastic element 601 is fitted onto both installation rods. Under the action of the elastic element 601, the pressing roller 6 can adjust the pressure according to the thickness of the tobacco leaf. The machine automatically adjusts the downward pressure to achieve flexible clamping, effectively smoothing out wrinkles, curled edges, or looseness on the surface of the tobacco leaves, preventing displacement or jumping during high-speed cutting, thus ensuring the uniformity and precision of the cut and reducing the breakage rate. Multiple guide holes 7 are provided on the machine body 1, allowing fine debris, dust, and residual impurities generated during the cutting process to fall naturally through the guide holes 7 with the assistance of vibration or airflow, preventing them from accumulating inside the equipment or mixing into the finished tobacco leaves, maintaining a clean working environment, and further improving the purity and processing quality of the final raw materials.
[0022] When pre-processing tobacco leaves of different thicknesses or pile sizes is required, the operator can manually rotate knob 3 to drive threaded rod 301 to rotate, causing connecting plate 201 to move up and down linearly along the thread direction. This, in turn, drives the mounting frame 2 and placement frame 202 connected to it to rise and fall as a whole, thereby flexibly adjusting the initial height of placement frame 202 to facilitate tobacco leaf placement. Before the tobacco leaves are cleaned on both the front and back sides and conveyed to the splitting process, they pass through pressing roller 6. Under the action of elastic element 601, pressing roller 6 provides flexible downward pressure, allowing pressing roller 6 to automatically adjust the pressing force according to the thickness of the tobacco leaves, effectively smoothing out wrinkles or warping of the tobacco leaves, ensuring that they remain flat and stable when entering the splitting machine 102, thereby improving the uniformity and accuracy of cutting and reducing breakage. After cutting, the tobacco leaves continue to be conveyed. Fine debris, dust and other impurities generated during the process fall naturally from the guide hole 7 under the action of vibration or airflow, avoiding mixing with subsequent materials, keeping the working area clean, and ensuring the purity and processing quality of the final tobacco leaf raw materials.
[0023] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims
1. A tobacco leaf threshing and re-drying pretreatment and splitting device, comprising a body (1), a motor (101), and a splitting machine (102), wherein the motor (101) is mounted on the body (1), and the splitting machine (102) is connected to the output shaft of the motor (101), characterized in that, It also includes a mounting bracket (2), a connecting plate 1 (201), a placement bracket (202), a connecting plate 2 (203), a rotating rod (204), a connecting rod (205), a cylinder 1 (206), a hinge plate (207), a threaded rod 1 (301), a cylinder 2 (4), a cleaning brush 1 (401), a motor 2 (5), a threaded rod 2 (501), a guide rod (502), and a cleaning brush 2 (503). A hinge plate (207) is installed on one side of the machine body (1). A cylinder 1 (206) is hinged to the hinge plate (207). A connecting rod (205) is connected to the piston rod of the cylinder 1 (206). A connecting plate 2 (203) is rotatably connected to the connecting rod (205). A rotating rod (204) is symmetrically installed on the hinge plate (207). The rotating rod (204) is connected to the connecting plate 2 (206). 03) Rotary connection, a mounting bracket (2) is installed on the connecting plate 2 (203), a threaded rod 1 (301) is rotatably installed on the mounting bracket (2), a connecting plate 1 (201) is threadedly connected to the threaded rod 1 (301), a placement bracket (202) is installed on the connecting plate 1 (201), a cylinder 2 (4) is symmetrically installed on the placement bracket (202), a cleaning brush 1 (401) is connected to the piston rod of the cylinder 2 (4), a motor 2 (5) is installed on the machine body (1), a threaded rod 2 (501) is connected to the output shaft of the motor 2 (5), a guide rod (502) is installed on the machine body (1), a cleaning brush 2 (503) is threadedly connected to the threaded rod 2 (501), and the end of the cleaning brush 2 (503) away from the threaded rod 2 (501) is slidably connected to the guide rod (502).
2. The tobacco leaf threshing and re-drying pretreatment and segmentation equipment according to claim 1, characterized in that, It also includes a knob (3), which is mounted on the threaded rod (301).
3. The tobacco leaf threshing and re-drying pretreatment and segmentation equipment according to claim 2, characterized in that, It also includes a pressure roller (6) and an elastic element (601). The machine body (1) is symmetrically mounted with mounting rods. The pressure roller (6) is slidably mounted on the mounting rods. The elastic element (601) is sleeved on the mounting rods. One end of the elastic element (601) is connected to the pressure roller (6), and the other end is connected to the mounting rod.
4. The tobacco leaf threshing and re-drying pretreatment and segmentation equipment according to claim 3, characterized in that, The fuselage (1) has multiple guide holes (7).
5. The tobacco leaf threshing and re-drying pretreatment and segmentation equipment according to claim 4, characterized in that, The knob (3) is provided with a handle.
6. The tobacco leaf threshing and re-drying pretreatment and segmentation equipment according to claim 5, characterized in that, The middle part of the placement rack (202) is a filter structure.