Multistage air selection tea leaf impurity removing machine
By designing a multi-stage air-separation tea impurity removal machine, the conveying and air-separation mechanisms extend the tea's air-holding time, achieving multi-stage air separation. This solves the problem of incomplete impurity removal in existing tea impurity removal machines, improving the purity and processing efficiency of the tea.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI SHUANGSHI TEA IND CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-24
AI Technical Summary
Existing tea air classifiers have a short dwell time when the tea leaves fall, and the airflow effect is limited, making it difficult to remove impurities completely. Especially when there are many impurities in the tea leaves or the air classifier requires high purity, multiple impurity removal processes are required, resulting in a waste of manpower, time, and energy.
Design a multi-stage air-separation tea impurity removal machine, comprising a housing mechanism, a transmission mechanism, a drive mechanism, and a multi-stage air-separation mechanism. The transmission mechanism continuously tosses the tea leaves to extend their air time, and the multi-stage air-separation mechanism progressively improves the air-separation efficiency, including a first, second, and third air-separation mechanism, with the air force increasing progressively at each stage.
It effectively extends the air-holding time of tea leaves, improves the quality of air separation, realizes multi-stage air separation, fully removes impurities, reduces manpower and energy waste, and improves the purity and quality of tea leaves.
Smart Images
Figure CN224542344U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea processing technology, and in particular to a multi-stage air-separated tea impurity removal machine. Background Technology
[0002] Tea processing is the process of turning freshly picked leaves into a beverage, and it can be divided into six categories depending on the process. The general process involves picking high-quality tender buds and leaves to ensure freshness and flavor; then withering to allow moisture to evaporate and soften the leaves; next, rolling to curl the leaves and release juice; some teas require fermentation to produce unique aroma and color; finally, drying to remove excess moisture and fix the aroma. For example, green tea processing involves picking, fixing (or killing the green), rolling, and drying, with fixing being crucial to maintaining its color and flavor. Tea winnowing is a method of separating substances of different densities in tea leaves using wind power. Winnowing removes impurities and separates leaves that do not meet weight standards. During winnowing, the wind blows the tea leaves, separating leaves of different weights from impurities; heavier leaves fall, while lighter leaves are blown further away, thus achieving the purpose of selection and ensuring the purity and quality of the tea.
[0003] Existing tea air-sorting and impurity removal machines mostly consist of a feeding mechanism and a blowing or suction mechanism. During tea air sorting, the feeding mechanism allows the tea leaves to fall freely in the air, while the blowing or suction mechanism drives the airflow, which acts on the falling tea leaves, thus carrying away impurities or substandard tea leaves. Although this type of tea air-sorting and impurity removal machine can sort tea leaves, in actual use, the time the tea leaves spend in the air is relatively short, so the time the airflow acts on the tea leaves is very limited. In addition, the tea leaves will block impurities to some extent during air sorting, so it is difficult to remove impurities completely, which has an adverse effect on the quality of impurity removal and makes it difficult to guarantee the processing quality. When the tea contains a lot of impurities, or when the required purity of the tea leaves is high, people need to perform secondary or even more impurity removal on the tea leaves after impurity removal to meet the requirements, resulting in a waste of manpower, time and energy.
[0004] Therefore, there is an urgent need to provide a multi-stage air-separation tea impurity removal machine to solve the above problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a multi-stage air-separated tea impurity removal machine.
[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a multi-stage air-sorting tea impurity removal machine is provided, including a housing mechanism and a transmission mechanism. The inner side of the housing mechanism is provided with a transmission mechanism for conveying the tea downwards, and the top of the housing mechanism is provided with a driving mechanism. A transmission mechanism for sieving and conveying the tea is rotatably connected to the driving mechanism. A first air separation mechanism is fixed on the housing mechanism; The housing mechanism is also fixed with a second air separation mechanism and a third air separation mechanism for multi-stage air separation.
[0007] The present invention is further configured such that: the housing mechanism includes a housing body, at least three supporting legs are welded to the bottom end of the housing body, supporting feet are welded to the bottom end of the supporting legs, a sliding groove is provided on the top of the housing body, a sliding groove is provided on the bottom of the housing body, a feed port is also provided on the top of the housing body, a discharge port is also provided on the bottom of the housing body, a discharge baffle is welded to one side of the discharge port, and three mounting holes are also provided on the outer wall of the housing body.
[0008] With the above technical solution, the outer shell is made of stainless steel, and three supporting legs and feet ensure the stability of the device. The mounting ports are distributed in a spiral shape along the outer wall of the outer shell.
[0009] The present invention is further configured such that: the transmission mechanism includes a sliding rod slidably connected to the slide groove, a limiting protrusion is integrally fixed on the sliding rod, a spiral conveying plate is welded on the sliding rod, a top baffle is welded to the top of the spiral conveying plate, and a side baffle is welded to the outer side of the spiral conveying plate.
[0010] Through the above technical solution, the sliding rod is slidably connected to both slide groove one and slide groove two. The inner walls of slide groove one and slide groove two are also provided with limiting grooves that match the cross-sectional shape of the limiting protrusion, thereby preventing relative rotation between the sliding rod and the slide groove when the sliding rod slides up and down. The spiral conveyor plate is shaped like an auger, with the top of the spiral conveyor plate aligned with the feed inlet and the bottom of the spiral conveyor plate facing the discharge outlet. When tea leaves are fed into the device from the feed inlet, the tea leaves will fall onto the top of the spiral conveyor plate. The top baffle and side baffle can effectively prevent the tea leaves from falling off the spiral conveyor plate.
[0011] The present invention is further configured such that: a connecting plate is welded to the bottom end of the sliding rod, a compression spring is fixed on the connecting plate, a limit block is welded to the top of the sliding rod, and a double toothed rack is fixed to the top end of the sliding rod.
[0012] Through the above technical solution, the top of the compression spring is fixed to the bottom wall of the outer shell, the limiting block can limit the sliding rod to prevent the sliding rod from falling downwards, and a row of meshing teeth is vertically arrayed on both sides of the double rack.
[0013] The present invention is further configured such that: the driving mechanism includes a fixed frame welded to the top of the outer shell body, a reducer is fixed on the fixed frame, a drive motor is fixed at the input end of the reducer, and bearing one and bearing two are also embedded and fixed on the fixed frame.
[0014] With the above technical solution, the fixing frame is L-shaped, the output shaft of the drive motor is connected to the input shaft of the reducer, the reducer can reduce the speed of the drive motor and increase the torque, and output power from the output shaft of the reducer. The outer rings of bearing one and bearing two are fixed to the fixing frame.
[0015] The present invention is further configured such that: the transmission mechanism includes a first rotating shaft fixed to the inner ring of a first bearing, a first spur gear fixed to one end of the first rotating shaft, and a first half gear coaxially fixed to the first spur gear; the transmission mechanism also includes a second rotating shaft fixed to the inner ring of a second bearing, a second spur gear fixed to one end of the second rotating shaft, and a second half gear coaxially fixed to the second spur gear.
[0016] Through the above technical solution, the other end of the rotating shaft is fixed to the output shaft of the reducer. The first and second spur gears mesh, and the first and second half-gears mesh with the two sides of the double rack respectively. When the drive motor starts, the reducer drives the first spur gear to rotate counterclockwise, thus causing the first half-gear to rotate counterclockwise. The first spur gear drives the second spur gear to rotate clockwise, thus causing the second half-gear to rotate clockwise. When the first and second half-gears rotate, the double rack is driven to move upwards, thereby pulling the entire transmission mechanism upwards. After the first and second half-gears rotate a certain angle, the toothless side of the half-gear faces... The double rack and pinion mechanism, no longer meshing with gear 1 and gear 2, will rapidly descend under the influence of gravity and the compression spring. As gear 1 and gear 2 continue to rotate at a certain angle, their toothed surfaces will contact the double rack and mesh with it again, lifting it up. This causes the conveyor mechanism to repeatedly lift and fall rapidly. As the conveyor mechanism rises and falls, the spiral conveyor plate will sift the tea leaves, causing them to continuously rise into the air. Simultaneously, under the influence of gravity, the tea leaves will gradually rotate and move downwards along the spiral conveyor plate.
[0017] The present invention is further configured such that: the first air separation mechanism includes a box body welded to the inner side of the installation port, the bottom of the box body is provided with a discharge port, a fan frame is fixed to the inner side of the box body, a baffle is attached to the fan frame, an exhaust motor is fixed to the fan frame, and exhaust blades are fixed to the output shaft of the exhaust motor.
[0018] With the above technical solution, the side of the housing facing the installation port is open. The exhaust motor drives the exhaust blades to rotate, thereby driving the airflow outward. When the vibrating tea leaves pass near the first air-separating mechanism, the impurities contained in the tea leaves are drawn into the housing by the airflow and blocked by the baffle. Finally, they fall through the discharge port, thus achieving air-separation and impurity removal. Because the conveying mechanism continuously throws the tea leaves up during the impurity removal process and gradually passes near the air-separating mechanism, the residence time of the tea leaves is effectively increased, allowing the airflow to fully act on the material, thereby removing impurities from the tea leaves. The substances can be effectively separated, improving the separation quality. The second and third air separation mechanisms have the same structure as the first air separation mechanism, and the first, second, and third air separation mechanisms are spirally distributed from top to bottom. The power of the exhaust motors of the first, second, and third air separation mechanisms increases sequentially. Therefore, the air force of the second air separation mechanism is greater than that of the first air separation mechanism, and the air force of the third air separation mechanism is greater than that of the second air separation mechanism, thus realizing multi-stage air separation. This allows the device to separate different types of impurities or to separate tea leaves of different weights.
[0019] The beneficial effects of this utility model are as follows: 1. This utility model, through the arrangement of a transmission mechanism, a drive mechanism, a transmission mechanism and a first air separation mechanism, enables the device to continuously toss the tea leaves into the air, thereby extending the air time of the tea leaves, improving the air separation quality, and effectively compressing the footprint of the device through the spiral structure. 2. By setting up a first air separation mechanism, a second air separation mechanism and a third air separation mechanism, this utility model realizes multi-stage air separation of tea leaves, enabling the device to separate various impurities or tea leaves of different weights, thus improving the practicality of the device. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional sectional view of the present invention; Figure 3 This is a three-dimensional sectional view of the shell mechanism of this utility model; Figure 4 This is a structural diagram of the transmission mechanism of this utility model; Figure 5 This is a structural diagram of the drive mechanism and transmission mechanism of this utility model; Figure 6 for Figure 2 A magnified view of a section at point A in the middle; Figure 7 This is a structural diagram of the first air separation mechanism of this utility model.
[0021] In the diagram: 1. Shell mechanism; 101. Shell body; 102. Support leg; 103. Support foot; 104. Slide groove one; 105. Slide groove two; 106. Feed inlet; 107. Discharge outlet; 108. Discharge baffle; 109. Mounting port; 2. Conveying mechanism; 201. Sliding rod; 202. Limiting protrusion; 203. Spiral conveyor plate; 204. Top baffle; 205. Side baffle; 206. Connecting plate; 207. Compression spring; 208. Limiting block; 209. Double rack; 3. Drive mechanism; 301. Fixed frame; 302. Reducer; 303. Drive motor; 304. Bearing 1; 305. Bearing 2; 4. Transmission mechanism; 401. Rotating shaft 1; 402. Flat gear 1; 403. Half gear 1; 404. Rotating shaft 2; 405. Flat gear 2; 406. Half gear 2; 5. First air separation mechanism; 501. Housing; 502. Discharge port; 503. Fan frame; 504. Baffle; 505. Exhaust motor; 506. Exhaust blades; 6. Second air separation mechanism; 7. Third air separation mechanism. Detailed Implementation
[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0023] Please see Figures 1-7 A multi-stage air-separation tea impurity removal machine includes a housing mechanism 1 and a transmission mechanism 2. The housing mechanism 1 includes an outer shell body 101. At least three support legs 102 are welded to the bottom of the outer shell body 101, and support feet 103 are welded to the bottom of the support legs 102. A sliding groove 104 is opened on the top of the outer shell body 101, and a sliding groove 105 is opened on the bottom of the outer shell body 101. A feed inlet 106 is also opened on the top of the outer shell body 101, and a discharge outlet 107 is also opened on the bottom of the outer shell body 101. A discharge baffle 108 is welded to one side of the discharge outlet 107. Three mounting ports 109 are also opened on the outer wall of the outer shell body 101. The outer shell body 101 is made of stainless steel. The three support legs 102 and support feet 103 ensure the stability of the device. The mounting ports 109 are spirally distributed along the outer wall of the outer shell body 101.
[0024] like Figure 1 and Figure 4As shown, the inner side of the housing mechanism 1 is provided with a transmission mechanism 2 for conveying tea leaves downward. The transmission mechanism 2 includes a sliding rod 201 slidably connected to the first chute 104. A limiting protrusion 202 is integrally fixed on the sliding rod 201. A spiral conveying plate 203 is also welded to the sliding rod 201. A top baffle 204 is welded to the top of the spiral conveying plate 203. A side baffle 205 is welded to the outer side of the spiral conveying plate 203. A connecting plate 206 is welded to the bottom of the sliding rod 201. A compression spring 207 is fixed on the connecting plate 206. A limiting block 208 is also welded to the sliding rod 201. A double rack 209 is fixed to the top of the sliding rod 201. The sliding rod 201 is slidably connected to both the first chute 104 and the second chute 105. The inner walls of the first chute 104 and the second chute 105 are... A limiting groove matching the cross-sectional shape of the limiting protrusion 202 is also provided to prevent the sliding rod 201 from rotating relative to the groove when sliding up and down. The spiral conveyor plate 203 is shaped like an auger. The top of the spiral conveyor plate 203 is aligned with the feed port 106, and the bottom of the spiral conveyor plate 203 faces the discharge port 107. When tea leaves are put into the device from the feed port 106, the tea leaves will fall on the top of the spiral conveyor plate 203. The top baffle 204 and the side baffle 205 can effectively prevent the tea leaves from falling off the spiral conveyor plate 203. The top of the compression spring 207 is fixed to the bottom wall of the outer shell 101. The limiting block 208 can limit the sliding rod 201 to prevent the sliding rod 201 from falling downward. Both sides of the double rack 209 have a row of meshing teeth arranged vertically.
[0025] like Figure 1 and Figure 5 As shown, a drive mechanism 3 is provided at the top of the housing mechanism 1. The drive mechanism 3 includes a fixed frame 301 welded to the top of the housing body 101. A reducer 302 is fixed on the fixed frame 301. A drive motor 303 is fixed at the input end of the reducer 302. A bearing 304 and a bearing 305 are also embedded and fixed on the fixed frame 301. The fixed frame 301 is L-shaped. The output shaft of the drive motor 303 is connected to the input shaft of the reducer 302. The reducer 302 can reduce the speed of the drive motor 303 and increase its torque, and output power from the output shaft of the reducer 302. The outer rings of the bearings 304 and 305 are fixed to the fixed frame 301.
[0026] like Figure 1 , Figure 5 and Figure 6As shown, a transmission mechanism 4 for the screening and conveying mechanism 2 is rotatably connected to the drive mechanism 3. The transmission mechanism 4 includes a rotating shaft 401 fixed to the inner ring of bearing 304, a spur gear 402 fixed to one end of the rotating shaft 401, and a half gear 403 coaxially fixed to the spur gear 402. The transmission mechanism 4 also includes a rotating shaft 404 fixed to the inner ring of bearing 305, a spur gear 405 fixed to one end of the rotating shaft 404, and a half gear 406 coaxially fixed to the spur gear 405. The other end of the rotating shaft 401 is fixed to the output shaft of the reducer 302. The first spur gear 402 meshes with the second spur gear 405. The first half gear 403 and the second half gear 406 mesh with the two sides of the double rack 209, respectively. When the drive motor 303 starts, the reducer 302 drives the first spur gear 402 to rotate counterclockwise, thus causing the first half gear 403 to rotate counterclockwise. The first spur gear 402 drives the second spur gear 405 to rotate clockwise, thus causing the second half gear 406 to rotate clockwise. When the second half gear... When gear 1 (403) and half gear 2 (406) rotate, the double rack 209 is driven upward, thus pulling the entire transmission mechanism 2 upward. After half gear 1 (403) and half gear 2 (406) rotate a certain angle, the toothless side of the half gear faces the double rack 209. At this point, the double rack 209 no longer meshes with half gear 1 (403) and half gear 2 (406). Under the action of gravity and the compression spring 207, the transmission mechanism 2 will quickly fall. When half gear 1 (403) and half gear 2 (406) continue to rotate... After a certain angle, the toothed surfaces of half gear 1 403 and half gear 2 406 contact the double rack 209. At this time, half gear 1 403 and half gear 2 406 will mesh with the double rack 209 and lift the double rack 209, thereby causing the transmission mechanism 2 to reciprocate to lift and fall rapidly. When the transmission mechanism 2 rises and falls, the spiral conveyor plate 203 will sieve the tea leaves, causing the tea leaves to continuously rise into the air. At the same time, under the action of gravity, the tea leaves will gradually rotate and move downward along the spiral conveyor plate 203.
[0027] like Figure 1 and Figure 7As shown, a first air separation mechanism 5 is fixed on the housing mechanism 1. A second air separation mechanism 6 and a third air separation mechanism 7 for multi-stage air separation are also fixed on the housing mechanism 1. The first air separation mechanism 5 includes a housing 501 welded to the inside of the mounting port 109. A discharge port 502 is provided at the bottom of the housing 501. A fan frame 503 is fixed to the inside of the housing 501. A baffle 504 is attached to the fan frame 503. An exhaust motor 505 is also fixed to the fan frame 503. Exhaust blades 506 are fixed to the output shaft of the exhaust motor 505. The housing 501 is open on the side facing the mounting port 109. The exhaust motor 505 can drive the exhaust blades 506 to rotate, thereby driving the airflow outward. When vibrating tea leaves pass near the first air separation mechanism 5, impurities contained in the tea leaves are drawn into the housing 501 by the airflow and blocked by the baffle 504, ultimately passing through the discharge port 502. 02. The tea leaves fall, thus achieving air separation and impurity removal. During the impurity removal process, the conveying mechanism 2 continuously throws the tea leaves up and gradually passes near the air separation mechanism, effectively increasing the air time of the tea leaves. This allows the airflow to fully act on the material, thereby effectively separating the impurities in the tea leaves and improving the separation quality. The second air separation mechanism 6 and the third air separation mechanism 7 have the same structure as the first air separation mechanism 5, and the first air separation mechanism 5, the second air separation mechanism 6, and the third air separation mechanism 7 are arranged in a spiral shape from top to bottom. The power of the exhaust motor 505 of the first air separation mechanism 5, the second air separation mechanism 6, and the third air separation mechanism 7 increases sequentially. Therefore, the air force of the second air separation mechanism 6 is greater than that of the first air separation mechanism 5, and the air force of the third air separation mechanism 7 is greater than that of the second air separation mechanism 6, thus realizing multi-stage air separation. This allows the device to air separate different types of impurities or air separate tea leaves of different weights.
[0028] In use, the feeding device feeds tea leaves into the device through the inlet 106. The drive mechanism 3 and the transmission mechanism 4 drive the transmission mechanism 2 to continuously move up and down, causing the tea leaves to be constantly thrown up and down, and gradually conveyed downwards along the spiral conveyor plate 203. During the transmission process, when the tea leaves pass through the first air separation mechanism 5, the second air separation mechanism 6 and the third air separation mechanism 7, the first air separation mechanism 5, the second air separation mechanism 6 and the third air separation mechanism 7 can perform multi-stage air separation on the tea leaves, thereby removing various impurities from the tea leaves, or classifying tea leaves of different weights by air separation. After air separation, the tea leaves are discharged through the outlet 107.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A multi-stage air-separation tea impurity removal machine, comprising a housing mechanism (1) and a transmission mechanism (2), characterized in that: The inner side of the housing mechanism (1) is provided with a transmission mechanism (2) for conveying tea leaves downwards, and the top of the housing mechanism (1) is provided with a drive mechanism (3). The drive mechanism (3) is rotatably connected with a transmission mechanism (4) for sieving the transmission mechanism (2). The first air separation mechanism (5) is fixed on the housing mechanism (1); The housing mechanism (1) is also fixed with a second air separation mechanism (6) and a third air separation mechanism (7) for multi-stage air separation.
2. The multi-stage air-separation tea impurity removal machine according to claim 1, characterized in that: The housing mechanism (1) includes a housing body (101), at least three support legs (102) are welded to the bottom end of the housing body (101), support feet (103) are welded to the bottom end of the support legs (102), a sliding groove (104) is provided on the top of the housing body (101), a sliding groove (105) is provided on the bottom of the housing body (101), a feed inlet (106) is also provided on the top of the housing body (101), a discharge outlet (107) is also provided on the bottom of the housing body (101), a discharge baffle (108) is welded to one side of the discharge outlet (107), and three mounting holes (109) are also provided on the outer wall of the housing body (101).
3. The multi-stage air-separation tea impurity removal machine according to claim 2, characterized in that: The transmission mechanism (2) includes a sliding rod (201) slidably connected to the slide groove (104). A limiting protrusion (202) is integrally fixed on the sliding rod (201). A spiral conveying plate (203) is also welded on the sliding rod (201). A top baffle (204) is welded to the top of the spiral conveying plate (203), and a side baffle (205) is welded to the outer side of the spiral conveying plate (203).
4. The multi-stage air-separation tea impurity removal machine according to claim 3, characterized in that: A connecting plate (206) is welded to the bottom end of the sliding rod (201), a compression spring (207) is fixed on the connecting plate (206), a limit block (208) is also welded to the top of the sliding rod (201), and a double rack (209) is fixed to the top end of the sliding rod (201).
5. A multi-stage air-separation tea impurity removal machine according to claim 2, characterized in that: The drive mechanism (3) includes a fixed frame (301) welded to the top of the outer shell body (101), a reducer (302) is fixed on the fixed frame (301), a drive motor (303) is fixed at the input end of the reducer (302), and a bearing one (304) and a bearing two (305) are also embedded and fixed on the fixed frame (301).
6. The multi-stage air-separation tea impurity removal machine according to claim 5, characterized in that: The transmission mechanism (4) includes a rotating shaft (401) fixed to the inner ring of bearing (304), a spur gear (402) fixed to one end of the rotating shaft (401), and a half gear (403) coaxially fixed to the spur gear (402). The transmission mechanism (4) also includes a rotating shaft (404) fixed to the inner ring of bearing (305), a spur gear (405) fixed to one end of the rotating shaft (404), and a half gear (406) coaxially fixed to the spur gear (405).
7. A multi-stage air-separation tea impurity removal machine according to claim 2, characterized in that: The first air separation mechanism (5) includes a box (501) welded to the inside of the mounting port (109). The bottom of the box (501) is provided with a discharge port (502). A fan frame (503) is also fixed on the inside of the box (501). A baffle (504) is attached to the fan frame (503). An exhaust motor (505) is also fixed on the fan frame (503). An exhaust blade (506) is fixed on the output shaft of the exhaust motor (505).