A grading and screening device for processing traditional Chinese medicine
By designing a filter plate vibration and flow guiding structure within the kit, the problems of clogging and slippage of Chinese herbal powder during grading and screening were solved, thus achieving effective grading and screening of Chinese herbal powder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI TAIENKANG PHARM CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, crushed Chinese herbal powder is prone to getting stuck on the filter plate and causing blockage during grading and screening due to its unique shape, or it may slip directly off due to excessive flow speed, making it impossible to distinguish the size of the screened Chinese herbal powder.
A grading and screening device for processing traditional Chinese medicine preparations was designed, including a box, filter plate, vibration assembly and guide plate. The slide plate and rack and pinion system are controlled by an electric telescopic rod to make the filter plate vibrate and guide the screening. The feed port is blocked by a spring and the guide plate guides the movement of powder to ensure that the powder is separated according to size.
It effectively prevents filter plate clogging, extends filtration time, and avoids large particles carrying small particles as they slip down, thus achieving the effect of grading and screening Chinese herbal medicine powders according to size.
Smart Images

Figure CN224542276U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of traditional Chinese medicine processing, specifically a grading and screening device for processing traditional Chinese medicine. Background Technology
[0002] Traditional Chinese medicine (TCM) preparations are made from Chinese medicinal herbs as raw materials. Under the guidance of TCM theory, they are produced according to prescribed prescriptions and preparation processes to meet the needs of disease prevention and treatment. They are a type of commercially available TCM preparation approved by the National Medical Products Administration. Currently, in the processing of medicinal herbs, the powder particles produced by grinding in a mill are of varying sizes and can be used for different types of finished TCM products. Therefore, it is necessary to grade and screen the crushed medicinal herb powder.
[0003] A search revealed a Chinese patent (authorization announcement number CN211802205U) disclosing a multi-stage sieving device for processing traditional Chinese medicine preparations. This patented technology includes a sieving cylinder and a motor. The sieving cylinder has an outer shell composed of a first shell and a second shell. The first shell has a discharge hopper, and both the first and second shells have sliding plates on their inner walls. The motor and the sieving shaft inside the sieving cylinder are circumferentially fixedly connected. A second toothed disc and a first toothed disc meshing with it are provided at the bottom of the sieving shaft. As the motor drives the sieving shaft to rotate, the meshing between the toothed discs generates small-amplitude high-frequency vibrations, which fully and efficiently sieve the medicinal materials on the sieving discs. The materials flow out through the side screen, achieving the purpose of multi-stage sieving of the medicinal materials. In addition, the outer shell is composed of a first shell and a second shell, which makes it easy to disassemble and clean the side screen, and facilitates maintenance.
[0004] However, during the grading and screening of crushed Chinese herbal powder, either the unique shape causes it to get stuck on the filter plate, causing blockage, or the excessive flow speed causes it to slide directly off the filter plate carrying smaller particles of Chinese herbal powder, making it impossible to distinguish the size of the screened Chinese herbal powder. Therefore, this utility model provides a grading and screening device for processing Chinese patent medicines. Utility Model Content
[0005] To overcome the shortcomings of existing technologies and solve the problem that crushed Chinese herbal powders either get stuck on the filter plate due to their unique shape, causing filter plate blockage, or slide directly off the filter plate carrying smaller particles of Chinese herbal powder due to excessive flow speed, resulting in the inability to distinguish the size of the screened Chinese herbal powders, this utility model proposes a grading and screening device for processing traditional Chinese medicine.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The grading and screening device for processing traditional Chinese medicine includes a box. The outer wall of the box is provided with several sets of discharge ports at equal intervals. The inner wall of the box is slidably connected with several filter plates at equal intervals. The mesh size of the filter plates decreases from top to bottom. The top of the filter plates is set as a symmetrical inclined surface. Both sides of the filter plates pass through the discharge ports and extend to the outside of the box. Two side plates are symmetrically fixedly connected to the top of the filter plates. A sliding shaft is slidably connected to the inner wall of the discharge port. A support pad is fixedly connected to the top of the sliding shaft. A spring is sleeved on the outer wall of the sliding shaft. The bottom of the spring is fixedly connected to the discharge port. The top of the spring is fixedly connected to the support pad. The support pad is located at the bottom of the filter plate and fixedly connected to the filter plate. A collection box is fixedly connected to the outer wall of the box and below the corresponding discharge port. A vibration component is provided inside the box.
[0007] Preferably, the vibration assembly includes several rotating shafts, all of which are disposed inside the housing and rotatably connected to the housing. The rotating shafts are located below the filter plate. A cam is fixedly connected to the outer wall of the rotating shaft. A bracket is fixedly connected to the bottom of the filter plate. A fixing plate is fixedly connected to the bottom of the bracket. The fixing plate is located below the cam. A top block is fixedly connected to the top of the fixing plate. The top of the top block is configured as a symmetrical inclined surface. The top block cooperates with the cam. A linkage unit is provided on the outer wall of the housing.
[0008] Preferably, the linkage unit includes an electric telescopic rod, which is fixedly installed on the outer wall of the casing. A sliding plate is fixedly connected to the output end of the electric telescopic rod, and the sliding plate is slidably connected to the casing. Several racks are fixedly connected at equal intervals to the outer wall of the sliding plate. One end of the rotating shaft passes through the casing and is fixedly connected to a gear, which meshes with the racks.
[0009] Preferably, a plurality of guide plates are fixedly connected at equal intervals to the inner wall of the casing. The guide plates are V-shaped and located above the corresponding filter plates. A discharge port is provided at the bottom of the guide plates.
[0010] Preferably, a mounting plate is fixedly connected to the top of the filter plate, and a baffle is fixedly connected to the top of the mounting plate. The top of the baffle is set as a symmetrical inclined surface, and the inclined surface of the top of the baffle fits against the bottom of the feed port.
[0011] Preferably, the top of the filter plate is provided with several sets of guide units at equal intervals. Each guide unit includes a first guide plate and a second guide plate. The first guide plate and the second guide plate are both fixedly installed on the top of the filter plate. The first guide plate and the second guide plate are both set in a V shape. The outer convex surface of the first guide plate corresponds to the outer convex surface of the second guide plate. A through groove is opened in the middle position of the first guide plate.
[0012] Preferably, the outer wall of the housing is provided with a control panel, which is electrically connected to the electric telescopic rod.
[0013] The beneficial effects of this utility model are as follows: 1. The grading and screening device for processing traditional Chinese medicine described in this utility model controls the sliding plate to slide back and forth left and right by an electric telescopic rod, causing several racks to slide back and forth left and right simultaneously. Through the cooperation of the racks and gears, several cams rotate back and forth in both directions. Through the squeezing of the cams and the top block, and in conjunction with the spring, several filter plates vibrate simultaneously, preventing the powder of traditional Chinese medicine from clogging the filter plates.
[0014] 2. The grading and screening device for processing traditional Chinese medicine described in this utility model guides the herbal powder falling into the casing by setting a guide plate, so that the herbal powder can fall on the top of the inclined surface of the filter plate each time it passes through the sieve. This prolongs the filtration time of the herbal powder on the filter plate and prevents large herbal powder particles from sliding directly off the filter plate along with smaller herbal powder particles. The spring sets a baffle to press against the bottom of the discharge port to block the discharge port. When the filter plate moves up and down, the herbal powder on the guide plate can be discharged intermittently, avoiding the herbal powder falling onto the filter plate all at once and causing excessive crowding, which would affect the sieving effect.
[0015] 3. The grading and screening device for processing traditional Chinese medicine described in this utility model guides the herbal powder to move laterally on the inclined surfaces of the first and second guide plates through the first guide plate and the second guide plate. This extends the filtration time of the herbal powder on the filter plate and prevents large herbal powder particles from carrying smaller herbal powder particles directly from sliding off the filter plate. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a front view of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is an exploded view of the filter plate and guide plate of this utility model used together; Figure 4 This is a cross-sectional view of the present invention; Figure 5 This is a utility model Figure 3 Enlarged view of point A in the middle; Figure 6 This is a utility model Figure 4 Enlarged view of point B in the middle; In the picture: 1. Housing; 11. Discharge port; 12. Sliding shaft; 13. Spring; 14. Support pad; 15. Filter plate; 16. Collection box; 17. Side plate; 18. Control panel; 2. Shaft; 21. Cam; 22. Bracket; 23. Fixing plate; 24. Top block; 25. Gear; 26. Rack; 27. Electric telescopic rod; 28. Slide plate; 3. Guide plate; 31. Discharge port; 32. Mounting plate; 33. Baffle; 34. First guide plate; 35. Second guide plate. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] like Figures 1 to 6 As shown, this utility model provides a technical solution: a grading and screening device for processing traditional Chinese medicine preparations, including a housing 1. The outer wall of the housing 1 has several sets of discharge ports 11 equidistantly spaced. The inner wall of the housing 1 has several filter plates 15 equidistantly slidably connected, with the mesh size of the filter plates 15 decreasing from top to bottom. The top of each filter plate 15 is a symmetrical inclined surface. Both sides of each filter plate 15 extend through the discharge ports 11 and outwards from the housing 1. Two side plates 17 are symmetrically fixedly connected to the top of each filter plate 15. A sliding shaft 12 is slidably connected to the inner wall of each discharge port 11. A support pad 14 is fixedly connected to the top of the sliding shaft 12. A spring 13 is sleeved on the outer wall of the sliding shaft 12. The bottom of the spring 13 is fixedly connected to the discharge port 11, and the top of the spring 13 is fixedly connected to the support pad 14. The support pad 14 is located at the bottom of the filter plates 15 and fixedly connected to them. A collection box 16 is fixedly connected to the outer wall of the housing 1 below the corresponding discharge port 11. The interior of the housing 1 is provided with… A vibration assembly is provided; the vibration assembly includes several rotating shafts 2, all of which are located inside the housing 1 and rotatably connected to the housing 1. The rotating shafts 2 are located below the filter plate 15. A cam 21 is fixedly connected to the outer wall of the rotating shaft 2. A bracket 22 is fixedly connected to the bottom of the filter plate 15. A fixing plate 23 is fixedly connected to the bottom of the bracket 22. The fixing plate 23 is located below the cam 21. A top block 24 is fixedly connected to the top of the fixing plate 23. The top of the top block 24 is set as a symmetrical inclined surface. The top block 24 cooperates with the cam 21. A linkage unit is provided on the outer wall of the housing 1; the linkage unit includes an electric telescopic rod 27, which is fixedly installed on the outer wall of the housing 1. A slide plate 28 is fixedly connected to the output end of the electric telescopic rod 27. The slide plate 28 is slidably connected to the housing 1. Several racks 26 are fixedly connected at equal intervals on the outer wall of the slide plate 28. One end of the rotating shaft 2 passes through the housing 1 and is fixedly connected to a gear 25. The gear 25 meshes with the racks 26.
[0020] Through the above technical solution, the crushed Chinese herbal medicine powder is placed into the casing 1, and the powder is sieved through several filter plates 15. When the powder slides off the corresponding filter plate 15, powder smaller than the current size falls from the filter plate 15 and is sieved again through the next filter plate 15. This allows the powder to enter different collection boxes 16 according to their size. The electric telescopic rod 27 is activated, controlling the slide plate 28 to slide back and forth, causing several racks 26 to slide back and forth, driving several gears 25 to rotate back and forth simultaneously, causing several cams 21 to rotate back and forth. When the cam... When the protruding end of wheel 21 rotates downward, it presses against the inclined surface of the top block 24. Under the push of cam 21, the top block 24 moves downward, causing the fixed plate 23 to move downward, causing the bracket 22 to move downward, causing the filter plate 15 to move downward, causing the sliding shaft 12 to move downward, and compressing the spring 13. When the protruding end of cam 21 rotates to the position where it is disengaged from the top block 24, it loses the compression of cam 21. Under the action of spring 13, the filter plate 15 moves upward and vibrates. This process repeats. When the slide plate 28 moves back and forth left and right, several filter plates 15 vibrate simultaneously to prevent the herbal powder from clogging the filter plates 15.
[0021] Specifically, a number of guide plates 3 are fixedly connected at equal intervals on the inner wall of the casing 1. The guide plates 3 are set in a V shape and are located above the corresponding filter plates 15. A discharge port 31 is opened at the bottom of the guide plates 3.
[0022] By using the above technical solution, the herbal powder falling into the casing 1 is guided by the guide plate 3, so that the herbal powder can fall on the top of the inclined surface of the filter plate 15 each time it is sieved. This extends the filtration time of the herbal powder by the filter plate 15 and prevents large herbal powder particles from sliding directly off the filter plate 15 along with smaller herbal powder particles.
[0023] Specifically, a mounting plate 32 is fixedly connected to the top of the filter plate 15, and a baffle 33 is fixedly connected to the top of the mounting plate 32. The top of the baffle 33 is set as a symmetrical inclined surface, and the inclined surface of the top of the baffle 33 fits against the bottom of the discharge port 31.
[0024] Through the above technical solution, the spring 13 is set to make the baffle 33 press against the bottom of the discharge port 31 to block the discharge port 31. Whenever the filter plate 15 moves downward, it drives the baffle 33 to move downward, so that the discharge port 31 is opened, allowing some Chinese herbal medicine powder to fall along the discharge port 31 for sieving. When the filter plate 15 moves upward, it drives the baffle 33 to move upward, blocking the discharge port 31. This process is repeated. When the filter plate 15 moves up and down, the Chinese herbal medicine powder on the guide plate 3 can be fed intermittently, avoiding the Chinese herbal medicine powder falling onto the filter plate 15 all at once and causing too much crowding, which would affect the sieving effect.
[0025] Specifically, the top of the filter plate 15 is provided with several sets of guide units at equal intervals. The guide units include a first guide plate 34 and a second guide plate 35. The first guide plate 34 and the second guide plate 35 are both fixedly installed on the top of the filter plate 15. The first guide plate 34 and the second guide plate 35 are both set in a V shape. The outer convex surface of the first guide plate 34 corresponds to the outer convex surface of the second guide plate 35. A through groove is opened in the middle position of the first guide plate 34.
[0026] With the above technical solution, when the herbal powder falls onto the filter plate 15, it is guided by the inclined surfaces of the first guide plate 34 and the second guide plate 35, causing the herbal powder to move laterally on the inclined surfaces of the first guide plate 34 and the second guide plate 35. This extends the filtration time of the filter plate 15 for the herbal powder and prevents large particles of herbal powder from carrying smaller particles of herbal powder and sliding directly off the filter plate 15.
[0027] Specifically, the outer wall of the housing 1 is provided with a control panel 18, which is electrically connected to the electric telescopic rod 27.
[0028] With the above technical solution, the start and stop of the electric telescopic pole 27 can be controlled via the control panel 18.
[0029] In use, the crushed herbal powder is placed into the housing 1. The guide plate 3 guides the falling herbal powder within the housing 1, ensuring that the powder lands on the top of the inclined surface of the filter plate 15 each time it passes through the sieve. This extends the filtration time of the filter plate 15 and prevents large particles of herbal powder from carrying smaller particles and sliding directly off the filter plate 15. When the herbal powder lands on the filter plate 15, it is guided laterally on the inclined surfaces of the first guide plate 34 and the second guide plate 35, thus extending the filtration time of the filter plate 15. The filtration time of the 15-stage herbal powder prevents large particles from being carried along with smaller particles and sliding directly off the filter plate 15. The herbal powder is sieved through several filter plates 15. When the herbal powder slides off the corresponding filter plate 15, particles smaller than the current size fall into the filter plate 15 and are sieved again through the next filter plate 15. This ensures that the herbal powder, according to its size, enters different collection boxes 16. Activating the electric telescopic rod 27 controls the sliding plate 28 to slide back and forth, causing several racks 26 to slide back and forth, driving several gears 25 to rotate simultaneously in both directions. This causes several cams 21 to rotate back and forth. When the protruding end of the cam 21 rotates to the lower position, it presses against the inclined surface of the top block 24. Under the push of the cam 21, the top block 24 moves downward, causing the fixed plate 23 to move downward, the bracket 22 to move downward, the filter plate 15 to move downward, and the sliding shaft 12 to move downward, compressing the spring 13. When the protruding end of the cam 21 rotates to the position where it is disengaged from the top block 24, it loses the compression of the cam 21. Under the action of the spring 13, the filter plate 15 moves upward and vibrates. This process repeats. When the slide plate 28 moves back and forth left and right, several filter plates 15 vibrate simultaneously, preventing... To prevent the herbal powder from clogging the filter plate 15, a spring 13 is installed to press the baffle 33 against the bottom of the feed port 31, thus blocking the feed port 31. Whenever the filter plate 15 moves downward, it drives the baffle 33 to move downward, opening the feed port 31 and allowing some of the herbal powder to fall through the feed port 31 for sieving. When the filter plate 15 moves upward, it drives the baffle 33 to move upward, blocking the feed port 31. This process is repeated, and when the filter plate 15 moves up and down, the herbal powder on the guide plate 3 is fed intermittently, preventing the herbal powder from falling onto the filter plate 15 all at once and causing excessive crowding, which would affect the sieving effect.
[0030] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A grading and screening device for processing traditional Chinese medicine preparations, characterized in that, The device includes a housing (1), the outer wall of which is provided with several sets of discharge ports (11) at equal intervals. The inner wall of the housing (1) is slidably connected with several filter plates (15) at equal intervals. The mesh size of the filter plates (15) decreases from top to bottom. The top of each filter plate (15) is set as a symmetrical inclined surface. Both sides of each filter plate (15) extend through the discharge ports (11) and out of the housing (1). The top of each filter plate (15) is symmetrically fixedly connected with two side plates (17). The inner wall of each discharge port (11) is slidably connected with a sliding shaft. (12) A support pad (14) is fixedly connected to the top of the sliding shaft (12). A spring (13) is sleeved on the outer wall of the sliding shaft (12). The bottom of the spring (13) is fixedly connected to the discharge port (11). The top of the spring (13) is fixedly connected to the support pad (14). The support pad (14) is located at the bottom of the filter plate (15) and is fixedly connected to the filter plate (15). A collection box (16) is fixedly connected to the outer wall of the sleeve (1) and below the corresponding discharge port (11). A vibration component is provided inside the sleeve (1).
2. The grading and screening device for processing traditional Chinese medicine preparations according to claim 1, characterized in that, The vibration assembly includes several rotating shafts (2), each of which is located inside the housing (1) and rotatably connected to the housing (1). The rotating shafts (2) are located below the filter plate (15). A cam (21) is fixedly connected to the outer wall of the rotating shafts (2). A bracket (22) is fixedly connected to the bottom of the filter plate (15). A fixing plate (23) is fixedly connected to the bottom of the bracket (22). The fixing plate (23) is located below the cam (21). A top block (24) is fixedly connected to the top of the fixing plate (23). The top of the top block (24) is set as a symmetrical inclined surface. The top block (24) is used in conjunction with the cam (21). A linkage unit is provided on the outer wall of the housing (1).
3. The grading and screening device for processing traditional Chinese medicine preparations according to claim 2, characterized in that, The linkage unit includes an electric telescopic rod (27), which is fixedly installed on the outer wall of the casing (1). The output end of the electric telescopic rod (27) is fixedly connected to a sliding plate (28), which is slidably connected to the casing (1). Several racks (26) are fixedly connected at equal intervals on the outer wall of the sliding plate (28). One end of the rotating shaft (2) passes through the casing (1) and is fixedly connected to a gear (25), which meshes with the rack (26).
4. The grading and screening device for processing traditional Chinese medicine preparations according to claim 1, characterized in that, The inner wall of the casing (1) is fixedly connected with several guide plates (3) at equal intervals. The guide plates (3) are set in a V shape and located above the corresponding filter plate (15). The bottom of the guide plates (3) is provided with a discharge port (31).
5. A grading and screening device for processing traditional Chinese medicine preparations according to claim 4, characterized in that, The top of the filter plate (15) is fixedly connected to an installation plate (32), and the top of the installation plate (32) is fixedly connected to a baffle (33). The top of the baffle (33) is set as a symmetrical inclined surface, and the inclined surface of the top of the baffle (33) fits against the bottom of the discharge port (31).
6. The grading and screening device for processing traditional Chinese medicine preparations according to claim 1, characterized in that, The top of the filter plate (15) is provided with several sets of guide units at equal intervals. The guide unit includes a first guide plate (34) and a second guide plate (35). The first guide plate (34) and the second guide plate (35) are both fixedly installed on the top of the filter plate (15). The first guide plate (34) and the second guide plate (35) are both set in a V shape. The outer convex surface of the first guide plate (34) corresponds to the outer convex surface of the second guide plate (35). A through groove is opened in the middle position of the first guide plate (34).
7. A grading and screening device for processing traditional Chinese medicine preparations according to claim 3, characterized in that, The outer wall of the casing (1) is provided with a control panel (18), which is electrically connected to the electric telescopic rod (27).