CN112007856A

CN112007856A - Tea sorting device and using method thereof

Info

Publication number: CN112007856A
Application number: CN202011007278.3A
Authority: CN
Inventors: 王荣扬; 周忠友
Original assignee: Huzhou Vocational and Technical College
Current assignee: Huzhou Vocational and Technical College
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2020-12-01
Anticipated expiration: 2040-09-23
Also published as: CN112007856B

Abstract

The invention belongs to the field of sorting machines, and particularly relates to a tea sorting device and a using method thereof. The invention screens tea leaves with different volumes by arranging a plurality of screens with the apertures from large to small, the rotation of the screens causes the tea leaves to generate centrifugal force to enter the collecting box from the inclined pipeline, and the layered screening is realized by the gravity through the screens with the apertures from large to small in the upper and lower multi-stage. The tea leaf processing device effectively replaces manual screening, is beneficial to mechanical development of the tea leaf industry, has the advantages of being capable of preparing according to the needs in size and suitable for the requirements of various capacities, is simple and clear in structure and simple to operate, is suitable for small and tiny tea leaf processing enterprises or tea growers to use, and meanwhile, due to the fact that the speed changing system is introduced into the tea leaf processing device, the working efficiency can be improved according to the actual requirements. The screen cloth screens the tealeaves of different volumes, and the rotation of screen cloth makes tealeaves produce centrifugal force and gets into the collecting box from the slope pipeline, utilizes the action of gravity to realize the layering screening through the screen cloth of multistage aperture from big to little about the while. The tea leaf processing device effectively replaces manual screening, is beneficial to mechanical development of the tea leaf industry, has the advantages of being capable of preparing according to the needs in size and suitable for the requirements of various capacities, is simple and clear in structure and simple to operate, is suitable for small and tiny tea leaf processing enterprises or tea growers to use, and meanwhile, due to the fact that the speed changing system is introduced into the tea leaf processing device, the working efficiency can be improved according to the actual requirements.

Description

Tea sorting device and using method thereof

Technical Field

The invention belongs to the field of sorting machines, and particularly relates to a tea sorting device and a using method thereof.

Background

The sorting machine is equipment for grading and screening products, and the design and research aiming at the tea sorting equipment at present can be mainly divided into three types: firstly, sorting according to the quality of tea leaves, applying proper and uniform wind power to the tea leaves in the horizontal direction, obtaining different horizontal speeds for the vertically falling tea leaves due to different self-gravity, and placing a collecting box according to the horizontal displacement of the tea leaves, wherein the horizontal displacement of the lighter tea leaves is larger under the condition of the same falling time; and secondly, sorting according to the color of the fresh leaves. Shooting tea leaves in real time by using an industrial camera, and sorting the tea leaves according to the color difference between fresh leaves and old stems by using an FPGA (field programmable gate array) technology and a digital technology; thirdly, sorting according to the volume of the tea leaves. Utilize the screen cloth to filter the tealeaves of different volumes, the screen cloth also can divide into the multilayer level and set up with the multilayer is concentric, and its aperture of the screen cloth of every layer reduces in proper order, and on the screen cloth that the multilayer level set up, tealeaves receives the action of gravity through the layer upon layer screen cloth realization layering, and the multilayer sets up with the heart and can utilize the rotation of screen cloth to make tealeaves produce centrifugal force, realizes the layering through inside and outside multilayer screen cloth.

However, the method for sorting according to the quality of the tea leaves is simple, and the tea leaves are mutually hooked, so that the sorting effect is poor; the method for sorting according to the color of the fresh leaves has higher requirement on sorting equipment and complex equipment, and is difficult to use by common tea growers; sorting according to tea volume is therefore currently the most common method.

However, in the process of sorting according to the volume of tea leaves, the screens horizontally arranged in multiple layers lack the drive for the tea leaves, so that the separation between the tea leaves with different volumes is difficult to realize, and the screening effect of the tea leaves still needs to be improved.

The patent publication No. CN108580315A, Chinese invention patent with publication No. 2018.09.28 discloses an efficient sorting device for machine-picked tea leaves, which comprises a feeding box, a sorting device, a screening device and a rack, wherein the feeding box, the sorting device and the screening device are sequentially connected and are all fixed on the rack; the sorting device is provided with an inclined annular sorting belt, a plurality of convex lifting rods perpendicular to the belt surface are arranged on the sorting belt, and the annular sorting belt can be driven by a sorting motor to rotate; the upper top of the feeding box is of an open structure, and the feeding box is arranged at the lower end of the sorting belt and is surrounded in the sorting belt; be less than the setting of sorting unit upper end, the sieving mechanism includes that a plurality of settings are at unified horizontal plane and the conveying roller that is parallel to each other, and the interval of per two conveying rollers can be adjusted at will, and makes the interval of conveying roller distribute to dredging by secret to setting up screening motor drive conveying roller synchronous revolution.

However, in the patent of the invention, the defects are that the tea leaves are screened only by the spacing between the conveying rollers of the screening device, the separation effect of the tea leaves with different volumes is poor, the device is complex, and the tea leaf screening device is difficult for common tea growers to use.

Disclosure of Invention

The invention aims to provide a tea sorting device and a using method thereof, which can screen tea with different volumes by arranging a plurality of screens with the apertures from large to small, the rotation of the screens enables the tea to generate centrifugal force to enter a collecting box from an inclined pipeline, and meanwhile, the gravity effect is utilized to realize layered screening through the screens with the apertures from large to small in upper and lower multi-stages. The tea leaf processing device effectively replaces manual screening, is beneficial to mechanical development of the tea leaf industry, has the advantages of being capable of preparing according to the needs in size and suitable for the requirements of various capacities, is simple and clear in structure and simple to operate, is suitable for small and tiny tea leaf processing enterprises or tea growers to use, and meanwhile, due to the fact that the speed changing system is introduced into the tea leaf processing device, the working efficiency can be improved according to the actual requirements.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a tealeaves sorting unit, includes the casing, sets up screen cloth in the casing sets up screen cloth axle on the screen cloth sets up be used for on the casing for the motor that screen cloth axle provided rotary power sets up feed inlet on the casing sets up the slope pipeline that is used for the ejection of compact on the casing sets up in the casing with the motor gear unit that the motor is connected sets up be used for meshing in the casing the loose gear unit of motor gear unit sets up be used for connecting in the casing loose gear unit with the hold-in range unit of screen cloth axle sets up be used for adjusting in the casing the tensioning ware unit of hold-in range unit elasticity degree, and set up and be in on the tensioning ware unit and be used for switching the gas pole unit of loose gear unit fender position.

The further preferred technical scheme is as follows: the tea sorting device further comprises collecting boxes, bearings and a base, wherein the collecting boxes are arranged at the lower end of the inclined pipeline and are the same as the inclined pipeline in number, the bearings are arranged at the upper end and the lower end of the screen shaft and are used for supporting the screen shaft to rotate, and the base is arranged at the bottom of the shell and is used for preventing the screen shaft from toppling over.

The further preferred technical scheme is as follows: the motor gear unit comprises a rotating shaft arranged on the motor, a motor shaft gear wheel arranged on the rotating shaft, and a motor shaft pinion arranged on the rotating shaft and positioned at the lower part of the motor shaft gear wheel.

The further preferred technical scheme is as follows: the movable gear unit is in including setting up a fixed section of thick bamboo on the casing sets up movable rod in the fixed section of thick bamboo sets up movable rod block circle on the movable rod sets up be used for connecting on the movable rod pinion of motor shaft gear wheel sets up be located on the movable rod pinion lower part is used for connecting the movable rod gear wheel of motor shaft pinion, and set up be located on the movable rod gear wheel lower part is used for connecting the movable rod block post of hold-in range unit.

The further preferred technical scheme is as follows: the hold-in range unit is including setting up suspension post on the casing sets up fixed disk on the suspension post sets up on the fixed disk with the first rotation wheel that the loose gear unit is connected sets up first rotation wheel centre of a circle with the rotation wheel block hole that the loose rod block post is connected sets up the epaxial second of screen rotates the wheel, connects first rotation wheel with the hold-in range that the wheel was rotated to the second, and sets up be used for on the fixed disk through the fixed disk hole of loose gear unit.

The further preferred technical scheme is as follows: the tensioner unit includes a handle provided on the housing, a sliding groove portion provided on the handle, a handle bar provided at a lower portion of the handle, a handle snap ring provided on the handle bar, and a tension pulley provided on the handle bar for tensioning the synchronous belt.

The further preferred technical scheme is as follows: the sliding groove part comprises an L-shaped entering groove, a height adjusting groove arranged at the tail end of the L-shaped entering groove, a high-speed groove arranged at the upper end of the height adjusting groove, and a low-speed groove arranged at the lower part of the high-speed groove and arranged at the lower end of the height adjusting groove.

The further preferred technical scheme is as follows: the tensioner unit further includes a handle groove for receiving the handle, and a sliding groove engaging block provided in the handle groove for coupling with the sliding groove portion.

The further preferred technical scheme is as follows: the gas pole unit is including the gas pole that can stretch out and draw back, sets up gas pole one end with the first ring of gas pole of movable rod block circle block, and set up and be in gas pole one end with the gas pole second ring of handle block circle block.

The use method of the tea sorting device sequentially comprises the following steps:

s1, pouring the tea leaves to be sorted into the tea leaf sorting machine from the feeding hole;

s2, adjusting the amplitude of tensioning the synchronous belt unit by the tensioner unit, and selecting a matched gear of the movable gear unit and the motor gear unit;

s3, starting the motor, and centrifugally discharging and downward permeating the tea leaves on the screen to sort;

and S4, collecting the sorted tea leaves from the collecting bin to obtain a final product.

The invention screens tea leaves with different volumes by arranging a plurality of screens with the apertures from large to small, the rotation of the screens causes the tea leaves to generate centrifugal force to enter the collecting box from the inclined pipeline, and the layered screening is realized by the gravity through the screens with the apertures from large to small in the upper and lower multi-stage. The tea leaf processing device effectively replaces manual screening, is beneficial to mechanical development of the tea leaf industry, has the advantages of being capable of preparing according to the needs in size and suitable for the requirements of various capacities, is simple and clear in structure and simple to operate, is suitable for small and tiny tea leaf processing enterprises or tea growers to use, and meanwhile, due to the fact that the speed changing system is introduced into the tea leaf processing device, the working efficiency can be improved according to the actual requirements.

Drawings

Fig. 1 is a schematic structural diagram of a tea sorting device according to the present invention.

Fig. 2 is a schematic structural diagram of a synchronous belt unit in the invention.

Fig. 3 is a schematic diagram of the position structure of the movable rod pinion in the invention.

Fig. 4 is a schematic structural view of a motor gear unit in the present invention.

Fig. 5 is a schematic view of the construction of the loose gear unit of the present invention.

FIG. 6 is a schematic structural view of a fixing disk of the present invention.

FIG. 7 is a schematic view of the first rotating wheel according to the present invention.

Fig. 8 is a schematic view of the tensioner unit of the present invention.

Fig. 9 is a schematic structural view of a sliding groove portion in the present invention.

Fig. 10 is a schematic view showing the structure of a handle groove in the present invention.

FIG. 11 is a schematic view of the structure of the air bar unit of the present invention.

FIG. 12 is a schematic diagram of a screen according to the present invention.

Detailed Description

The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Example (b): as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, a tea leaf sorting apparatus includes a housing 11, a screen 12 disposed in the housing 11, a screen shaft 13 disposed on the screen 12, a motor 14 disposed on the housing 11 for providing a rotary power to the screen shaft 13, a feed port 15 disposed on the housing 11, an inclined duct 16 disposed on the housing 11 for discharging, a motor gear unit 1 disposed in the housing 11 and connected to the motor 14, a movable gear unit 2 disposed in the housing 11 for engaging with the motor gear unit 1, a timing belt unit 3 disposed in the housing 11 for connecting the movable gear unit 2 and the screen shaft 13, a tensioner unit 4 disposed in the housing 11 for adjusting a tightness degree of the timing belt unit 3, and a gas lever unit 5 provided on the tensioner unit 4 and switching the gear of the movable gear unit 2.

In this embodiment, the housing 11 is a main body of a tea sorting machine, which plays a role of accommodating equipment, and also prevents tea leaves from flying out during tea leaf sorting, and ensures that tea leaves cannot mistakenly enter a wrong screen layer, the motor 14 drives the screen to rotate and reciprocate to simulate tea growers to sort tea leaves, the screen 12 is arranged along the screen shaft 13, the screen hole diameter from top to bottom is gradually reduced, the screen 12 in the last layer is not provided with holes and is used for collecting the remaining tea leaves screened out finally, each layer of the screen 12 is provided with a discharge hole on the housing 11, the discharge hole is slightly lower than the screen 12 in the horizontal plane to facilitate tea leaf sorting, the discharge hole is connected with an inclined pipeline 16 used for discharging, the inclined pipeline 16 adjusts the length thereof according to the actual height to adapt to the whole device, and the rotating force of the motor 14 passes through the motor gear unit 1, The conveying of loose gear unit 2 and hold-in range unit 3 on the screen cloth axle 13 to it is all to drive screen cloth 12 is rotatory, tensioning ware unit 4 is used for the tensioning hold-in range unit 3 avoids producing the dynamic friction phenomenon, gas pole unit 5 is used for connecting loose gear unit 2 with tensioning ware unit 4 makes tensioning ware unit 4 has the function of control variable speed.

The tea leaf sorting device further comprises collecting material boxes 17 which are arranged at the lower end of the inclined pipeline 16 and are the same as the inclined pipeline in number, bearings 18 which are arranged at the upper end and the lower end of the screen shaft 13 and are used for supporting the screen shaft to rotate, and a base 19 which is arranged at the bottom of the shell 11 and is used for preventing the screen shaft from toppling over.

In this embodiment, the collection box 17 is disposed corresponding to the lower end of each of the inclined pipes 16, and each of the inclined pipes 16 is equipped with at least one collection box 17 for collecting and sorting.

The motor gear unit 1 includes a rotating shaft 101 provided on the motor 14, a motor shaft gearwheel 103 provided on the rotating shaft 101, and a motor shaft pinion 104 provided on the rotating shaft 101 below the motor shaft gearwheel 103.

The movable gear unit 2 is including setting up fixed cylinder 201 on the casing 11 sets up movable rod 203 in the fixed cylinder 201 sets up movable rod snap ring 204 on the movable rod sets up be used for connecting on the movable rod 203 motor shaft gear wheel 103's movable rod pinion 205 sets up lie in on the movable rod 203 movable rod pinion 205 lower part is used for connecting motor shaft pinion 103's movable rod gear wheel 206, and set up lie in on the movable rod 203 movable rod gear wheel 206 lower part is used for connecting hold-in range unit 3's movable rod snap post 207.

In this embodiment, the fixed cylinder 201 includes a bearing, the diameters, the sizes, the numbers, and the intervals of the motor shaft gearwheel 103 and the movable rod gearwheel 206 are the same, the diameters, the sizes, the numbers, and the intervals of the motor shaft pinion 104 and the movable rod pinion 205 are the same, and the sizes, the intervals of the motor shaft gearwheel 103 and the motor shaft pinion 104 are the same.

When the movable lever 203 moves up and down, the motor shaft gear 104 and the movable lever gear 206 may be engaged with each other, and the motor shaft gear 103 and the movable lever gear 205 may be engaged with each other, as shown in fig. 3, which shows a case where the motor shaft gear 103 and the movable lever gear 205 are engaged with each other.

In addition, the distance between the small moving rod gear 205 and the large moving rod gear 206 is larger than the distance between the large motor shaft gear 103 and the small motor shaft gear 104, so that the situation that the moving rod 203 is locked is avoided.

Hold-in range unit 3 is including setting up suspension post 301 on the casing 11 sets up fixed disk 302 on the suspension post 301 sets up on the fixed disk 302 with first rotation wheel 303 that the loose gear unit 2 is connected sets up first rotation wheel 303 centre of a circle with rotation wheel block hole 304 that the movable rod block post 207 is connected sets up second rotation wheel 305 on the screen shaft 13 is connected first rotation wheel 303 with the hold-in range 306 of second rotation wheel 305, and set up be used for on the fixed disk 302 through the fixed disk hole 307 of loose gear unit 2.

In this embodiment, the contact surface between the fixed disk 302 and the first rotating wheel 303 contains a rolling ball for reducing friction, the movable rod engaging column 207 can be engaged in the rotating wheel engaging hole 304 to rotate, and moving the movable rod 203 does not move the movable rod engaging column 207 out of the rotating wheel engaging hole 304.

In addition, the first rotating wheel 303 may transmit a rotational force to the second rotating wheel 305 through the timing belt 306, thereby rotating the screen shaft 13.

The tensioner unit 4 includes a handle 401 provided on the housing 11, a slide groove portion 402 provided on the handle 401, a handle bar 403 provided at a lower portion of the handle 401, a handle snap ring 404 provided on the handle bar 403, and a tension pulley 405 provided on the handle bar for tensioning the timing belt 306.

The sliding groove portion 402 includes an L-shaped entrance groove 402a, a height adjustment groove 402b provided at the end of the L-shaped entrance groove 402a, a high-speed groove 402c provided at the upper end of the height adjustment groove 402b, and a low-speed groove 402d provided at the lower end of the height adjustment groove 402b and located at the lower portion of the high-speed groove 402 c.

The tensioner unit 4 further includes a handle groove 406 for receiving the handle 401, and a slide groove engaging block 407 provided in the handle groove 406 for engaging with the slide groove portion 402.

In this embodiment, the handle 401 may be installed in the handle groove 11a by aligning the L-shaped entering groove 402a with the sliding groove engaging block 11b, the motor shaft gear 104 may be connected to the movable rod gear 206 when the sliding groove engaging block 11b is slid to the low speed groove 402d through the height adjusting groove 402b, the screen 12 may be rotated in the low speed mode, and the motor shaft gear 103 may be connected to the movable rod gear 205 when the sliding groove engaging block 11b is slid to the high speed groove 402c through the height adjusting groove 402b, and the screen 12 may be rotated in the high speed mode.

When the slide groove engaging piece 11b is engaged with each of the tension grooves of the low-speed groove 402d or the high-speed groove 402c, the tension between the tension pulley 405 and the timing belt 306 varies, and the shift position should be adjusted according to actual needs.

Further, the handle groove 406 has the same width as the handle 401, and the length of the handle groove 406 is longer than that of the handle 401, so that the handle 401 is freely movable in the front-rear direction.

The air lever unit 5 includes an extensible air lever 501, an air lever first ring 502 provided at one end of the air lever 501 and engaged with the movable lever engaging ring 204, and an air lever second ring 503 provided at one end of the air lever 501 and engaged with the handle engaging ring 404.

In this embodiment, the air rod 501 is configured to drive the movable rod 203 to move up and down when the handle rod 403 moves up and down, and the movable rod 203 is not affected when the handle rod 403 moves back and forth, a contact surface of the first air rod ring 502 and the movable rod clamping ring 204 includes a rolling bead for reducing friction, and a contact surface of the second air rod ring 503 and the handle clamping ring 404 includes a rolling bead for reducing friction.

s1, pouring the tea leaves to be sorted into the feed inlet 15;

s2, adjusting the amplitude of tensioning the synchronous belt unit 3 by the tensioner unit 4, and selecting the matching gears of the movable gear unit 2 and the motor gear unit 1;

s3, starting the motor 14, and centrifugally discharging and downward permeating the tea leaves on the screen 12 for sorting;

and S4, collecting the sorted tea leaves from the collecting bin 17 to obtain a final product.

In this embodiment, 500g of tea leaves to be sorted are poured into the feeding hole 15, the device includes four layers of the screens 12, the screen apertures from top to bottom are sequentially reduced, the screen at the bottom layer has no hole, the handle is adjusted to enable the tension pulley 405 and the synchronous belt 306 to be attached, the operation mode is adjusted to a low speed gear, the motor 14 is started, the motor 14 controls the screen 12 to rotate in the forward and reverse directions for multiple times through a PCL programmable logic controller to simulate the action of manual screening, and finally 200g, 150g, 100g and 50g of tea leaves with different particle sizes are respectively collected from the four collection bins 17.

The embodiments of the present invention have been described in detail, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the present invention.

Claims

1. A tea leaf sorting device comprises a shell (11), a screen (12) arranged in the shell (11), a screen shaft (13) arranged on the screen (12), a motor (14) arranged on the shell (11) and used for providing rotary power for the screen shaft (13), a feeding hole (15) arranged on the shell (11), an inclined pipeline (16) arranged on the shell (11) and used for discharging, and is characterized by further comprising a motor gear unit (1) arranged in the shell (11) and connected with the motor (14), a movable gear unit (2) arranged in the shell (11) and used for meshing with the motor gear unit (1), and a synchronous belt unit (3) arranged in the shell (11) and used for connecting the movable gear unit (2) with the screen shaft (13), a tensioner unit (4) arranged in the shell (11) and used for adjusting the tightness degree of the synchronous belt unit (3), and a gas rod unit (5) arranged on the tensioner unit (4) and used for switching the gear of the movable gear unit (2).

2. A tea leaf sorting device according to claim 1, further comprising collecting bins (17) provided at the lower end of the inclined duct (16) in the same number, bearings (18) provided at the upper and lower ends of the screen shaft (13) for supporting the rotation thereof, and a base (19) provided at the bottom of the housing (11) for preventing toppling.

3. A tea leaf sorting device according to claim 1, wherein the motor gear unit (1) comprises a rotary shaft (101) provided on the motor (14), a motor shaft gear wheel (103) provided on the rotary shaft (101), and a motor shaft pinion (104) provided on the rotary shaft (101) at a lower portion of the motor shaft gear wheel (103).

4. A tea leaf sorting device according to claim 3, wherein the movable gear unit (2) comprises a fixed cylinder (201) arranged on the housing (11), a movable rod (203) arranged in the fixed cylinder (201), a movable rod snap ring (204) arranged on the movable rod, a movable rod pinion (205) arranged on the movable rod (203) for connecting the motor shaft gearwheel (103), a movable rod gearwheel (206) arranged on the movable rod (203) below the movable rod pinion (205) and for connecting the motor shaft gearwheel (103), and a movable rod snap column (207) arranged on the movable rod (203) below the movable rod gearwheel (206) and for connecting the synchronous belt unit (3).

5. The tea leaf sorting device according to claim 4, wherein the synchronous belt unit (3) comprises a suspension column (301) arranged on the housing (11), a fixed tray (302) arranged on the suspension column (301), a first rotating wheel (303) arranged on the fixed tray (302) and connected with the movable gear unit (2), a rotating wheel clamping hole (304) arranged at the center of the first rotating wheel (303) and connected with the movable rod clamping column (207), a second rotating wheel (305) arranged on the screen shaft (13), a synchronous belt (306) connecting the first rotating wheel (303) and the second rotating wheel (305), and a fixed tray hole (307) arranged on the fixed tray (302) and used for passing through the movable gear unit (2).

6. The tea leaf sorting apparatus according to claim 5, wherein the tensioner unit (4) comprises a handle (401) provided on the housing (11), a slide groove portion (402) provided on the handle (401), a handle lever (403) provided at a lower portion of the handle (401), a handle snap ring (404) provided on the handle lever (403), and a tension pulley (405) provided on the handle lever for tensioning the timing belt (306).

7. The tea leaf sorting apparatus according to claim 6, wherein the sliding groove part (402) comprises an L-shaped entrance groove (402 a), a height adjusting groove (402 b) provided at an end of the L-shaped entrance groove (402 a), a high speed groove (402 c) provided at an upper end of the height adjusting groove (402 b), and a low speed groove (402 d) provided at a lower end of the height adjusting groove (402 b) at a lower portion of the high speed groove (402 c).

8. A tea leaf sorting apparatus according to claim 6, wherein the tensioner unit (4) further comprises a handle groove (406) for accommodating the handle (401), a slide groove engaging block (407) provided in the handle groove (406) for engaging with the slide groove portion (402).

9. The tea leaf sorting device according to claim 6, wherein the air lever unit (5) comprises an air lever (501) which can be extended and contracted, an air lever first ring (502) which is arranged at one end of the air lever (501) and is engaged with the movable lever engaging ring (204), and an air lever second ring (503) which is arranged at one end of the air lever (501) and is engaged with the handle engaging ring (404).

10. A method of using the tea leaf sorting apparatus of claim 1, comprising the steps of, in order:

s1, pouring the tea leaves to be sorted from the feed opening (15);

s2, adjusting the amplitude of tensioning the synchronous belt unit (3) by the tensioner unit (4), and selecting the matching gears of the movable gear unit (2) and the motor gear unit (1);

s3, starting the motor (14), and centrifugally discharging and downward permeating the tea leaves on the screen (12) for sorting;

s4, collecting the sorted tea leaves from the collecting bin (17) to obtain a final product.