Winnowing type stem and leaf separating device for tea processing

By combining the material distribution net, material distribution wheel, and roller structure, the problem of tea clumping during feeding is solved, enabling pre-dispersion and periodic discharge of tea, thus improving the accuracy and effectiveness of tea sorting.

CN223988754UActive Publication Date: 2026-03-13FUJIAN QILAN CHAWANGGU TEA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The feeding method of traditional air separation devices causes tea leaves to clump together, which affects the air separation effect.

Method used

The system employs a combination of a distribution net, a distribution wheel, and rollers. A servo motor drives the distribution wheel to rotate, achieving pre-dispersion of the tea leaves. The distribution wheel, through its arc grooves and the rollers, performs vertical reciprocating motion, dispersing the tea leaves and periodically discharging them.

Benefits of technology

It improves the sorting accuracy of tea leaves, ensures comprehensive sorting of tea leaves, prevents clumping, and enhances the sorting effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223988754U_ABST
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Abstract

The utility model discloses a winnowing type tea leaf processing stem and leaf separating device which comprises a device body, a feeding port is formed in the top of the device body, a material separating net is installed in the feeding port in a sliding mode, a cavity is formed in the device body, a rotating groove is formed in the feeding port, a top opening of the rotating groove is communicated with the feeding port, and the top opening of the rotating groove is communicated with the cavity. The bottom opening of the rotating groove is communicated with the cavity, when the feeding port is filled with tea leaves, the distributing wheel can be driven to rotate through the servo motor, and through mutual cooperation between the multiple arc-shaped grooves in the distributing wheel and the rolling wheel, the rolling wheel can do vertical reciprocating motion when the distributing wheel rotates; according to the tea leaf separating device, the separating net is driven to vertically reciprocate in the feeding port, tea leaves are pre-dispersed, the dispersed tea leaves penetrate through the separating net and fall into the groove in the separating wheel, and through rotation of the separating wheel, periodic discharging of the separating wheel is achieved, comprehensive separation of the tea leaves is guaranteed, and the separation precision is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of tea production equipment, specifically to a wind-selective tea stem and leaf separation device. Background Technology

[0002] Air separation is a method of removing impurities by utilizing the difference in suspension velocity between materials and impurities, aided by airflow. The purpose of air separation is to remove light impurities and dust, while also removing some heavier impurities such as stones and clods of earth. In tea processing, air separation equipment is frequently used to separate tea stems and leaves, and it can also simultaneously cool and dissipate heat, making it very suitable for this purpose.

[0003] Traditional air separation devices mostly use direct feeding, which causes tea leaves to clump together, affecting the air separation effect. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a wind-selective tea stem and leaf separation device, which solves the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wind-selective tea stem and leaf separation device, comprising a main body, an inlet at the top of the main body, a separating mesh slidably installed inside the inlet, a cavity inside the main body, a rotating groove inside the inlet, the top opening of the rotating groove communicating with the inlet and the bottom opening communicating with the cavity, a separating wheel rotatably installed inside the rotating groove, the separating wheel having multiple grooves, and multiple arc-shaped grooves on both end faces of the separating wheel, two symmetrical connecting rods protruding from the bottom of the separating mesh, rollers rotatably installed at the bottom of the connecting rods, the size of the rollers being adapted to the arc-shaped grooves, two separating plates arranged inside the cavity, a guide plate provided inside the cavity, a first outlet and a second outlet both communicating with the cavity on the main body, a fan on one side of the main body, the fan outlet communicating with the cavity, a servo motor at the inlet, and the servo motor's output shaft mounted on the separating wheel.

[0008] Preferably, an inclined discharge trough is provided on the bottom inner wall of the cavity, and the discharge trough corresponds to the first discharge port.

[0009] Preferably, a guide plate extending into the cavity is provided at the second discharge port, and the guide plate has multiple screen holes.

[0010] Preferably, the top of the guide plate is provided with two partitions, and the guide plate has a certain degree of inclination.

[0011] Preferably, a plurality of the arc-shaped grooves are spaced apart on the material distribution wheel along the circumferential direction.

[0012] Preferably, the plurality of grooves are spaced apart on the material distribution wheel along the circumferential direction.

[0013] Preferably, the feed inlet has a snap-fit ​​groove, and the material distribution mesh is slidably arranged in the snap-fit ​​groove.

[0014] Compared with the prior art, this utility model provides a wind-type tea stem and leaf separation device, which has the following beneficial effects: This utility model, through the cooperation of structures such as a separating net, a separating wheel, and rollers, allows the separating wheel to rotate via a servo motor when tea is fed into the inlet. The multiple arc-shaped grooves on the separating wheel, in cooperation with the rollers, enable the rollers to reciprocate vertically during rotation, thereby driving the separating net to reciprocate vertically within the inlet, achieving pre-dispersion of the tea. After dispersion, the tea passes through the separating net and falls into the grooves on the separating wheel. The rotation of the separating wheel enables periodic discharge, ensuring comprehensive tea sorting and improving sorting accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a side sectional view of the present invention.

[0017] Figure 3 This is a cross-sectional structural diagram of the feed inlet, distribution wheel, and distribution net of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the material distribution mesh, rollers, and arc groove of this utility model;

[0019] Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0020] The components include: 1. Main body of the device; 2. Support column; 3. Fan; 4. Inlet; 5. Servo motor; 6. First outlet; 7. Second outlet; 8. Guide plate; 9. Dividing wheel; 10. Cavity; 11. Dividing plate; 12. Discharge trough; 13. Groove; 14. Rotating groove; 15. Snap-fit ​​groove; 16. Dividing net; 17. Roller; 18. Arc groove; 19. Connecting rod. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-5 A wind-selective tea processing stem and leaf separation device includes a main body 1. The top of the main body 1 has an inlet 4, and a separating mesh 16 is slidably installed inside the inlet 4. A cavity 10 is formed inside the main body 1, and a rotating groove 14 is formed inside the inlet 4. The top opening of the rotating groove 14 communicates with the inlet 4, and the bottom opening of the rotating groove 14 communicates with the cavity 10. A separating wheel 9 is rotatably installed inside the rotating groove 14. Multiple grooves 13 are formed on the separating wheel 9, and multiple arc-shaped grooves 18 are formed on both end faces of the separating wheel 9. Two protruding sections are formed on the bottom of the separating mesh 16. The connecting rods 19 are symmetrically arranged, and the bottom of the connecting rods 19 is rotatably mounted with rollers 17. The size of the rollers 17 is adapted to the arc groove 18. Two material distribution plates 11 are arranged in the cavity 10, and a material guide plate 8 is provided in the cavity 10. The main body of the device 1 is provided with a first discharge port 6 and a second discharge port 7 that are both connected to the cavity 10. A fan 3 is provided on one side of the main body of the device 1. The air outlet of the fan 3 is connected to the cavity 10. A servo motor 5 is provided at the inlet 4. The action output shaft of the servo motor 5 is installed on the material distribution wheel 9. Four support columns 2 protrude from the bottom of the main body of the device 1.

[0025] Through the coordinated structure of the separating mesh 16, the separating wheel 9, and the roller 17, when tea leaves are fed into the inlet 4, the servo motor 5 drives the separating wheel 9 to rotate. The multiple arc-shaped grooves 18 on the separating wheel 9, in conjunction with the roller 17, allow the roller 17 to reciprocate vertically as the separating wheel 9 rotates. This, in turn, drives the separating mesh 16 to reciprocate vertically within the inlet 4, achieving pre-dispersion of the tea leaves. After dispersion, the tea leaves pass through the separating mesh 16 and fall into the grooves 13 on the separating wheel 9. The rotation of the separating wheel 9 enables periodic discharge, ensuring comprehensive tea leaf sorting and improving sorting accuracy.

[0026] Specifically, in this embodiment, an inclined discharge trough 12 is provided on the bottom inner wall of the cavity 10, and the discharge trough 12 corresponds to the first discharge port 6.

[0027] The discharge chute 12 facilitates the discharge of stems and small debris from the tea leaves.

[0028] Specifically, in this embodiment, a guide plate 8 extending into the cavity 10 is provided at the second discharge port 7, and the guide plate 8 has multiple screen holes.

[0029] The sieve holes on the guide plate 8 allow stems and small impurities in the tea leaves to fall through the sieve holes into the discharge trough 12 for discharge.

[0030] Specifically, in this embodiment, the top of the guide plate 8 is provided with two partitions, and the guide plate 8 has a certain degree of inclination.

[0031] Different sizes of tea leaves can be separated and discharged using a partition.

[0032] Specifically, in this embodiment, multiple arc-shaped grooves 18 are spaced apart on the material distribution wheel 9 along the circumferential direction.

[0033] Specifically, in this embodiment, multiple grooves 13 are spaced apart on the material distribution wheel 9 along the circumferential direction.

[0034] Specifically, in this embodiment, a snap-fit ​​groove 15 is provided in the feed inlet 4, and the material distribution mesh 16 is slidably arranged in the snap-fit ​​groove 15.

[0035] The snap-fit ​​slot 15 provides support for the material distribution mesh 16.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winnowing type tea processing stem and leaf separating device comprising a device main body, characterized in that: The top of the device body is provided with an inlet, a distribution net is slidably arranged in the inlet, a cavity is formed in the device body, a rotating groove is formed in the inlet, the top opening of the rotating groove is communicated with the inlet, the bottom opening of the rotating groove is communicated with the cavity, a distribution wheel is rotatably arranged in the rotating groove, a plurality of grooves are formed in the distribution wheel, a plurality of arc-shaped grooves are formed in the two end faces of the distribution wheel, the bottom of the distribution net is provided with two symmetrically connected rods, a roller is rotatably arranged at the bottom of the connected rod, the size of the roller is matched with the arc-shaped groove, two distribution plates are arranged in the cavity, a guide plate is arranged in the cavity, a first outlet and a second outlet are formed in the device body and communicated with the cavity, a fan is arranged on one side of the device body, the outlet of the fan is communicated with the cavity, a servo motor is arranged at the inlet, and the action output shaft of the servo motor is arranged on the distribution wheel.

2. The winnowing tea processing leaf and stem separating device according to claim 1, characterized in that: An inclined outlet groove is formed in the bottom inner wall of the cavity, and the outlet groove corresponds to the first outlet.

3. The whirling tea processing leaf and stem separation device as claimed in claim 1, wherein: A guide plate extending into the cavity is arranged at the second outlet, and a plurality of screen holes are formed in the guide plate.

4. The winnowing tea processing leaf and stem separation apparatus as claimed in claim 3, wherein: Two partitions are protruded from the top of the guide plate, and the guide plate has a certain inclination.

5. The whirling tea processing leaf and stem separation device according to claim 1, wherein: A plurality of arc-shaped grooves are spaced apart and arranged on the distribution wheel in the circumferential direction.

6. The whirling tea processing leaf and stem separation device as claimed in claim 1, wherein: A plurality of grooves are spaced apart and arranged on the distribution wheel in the circumferential direction.

7. The whirling tea processing leaf and stem separation device as claimed in claim 1, wherein: A clamping groove is formed in the inlet, and the distribution net is slidably arranged in the clamping groove.