A withering device for tea leaf primary processing

By introducing a turning roller and a reciprocating structure into the tea withering device, the problem of uneven withering was solved, achieving uniformity and automation in tea withering, and improving tea quality and production efficiency.

CN224306688UActive Publication Date: 2026-06-02XIANFENG COUNTY YU SEYUAN TEA IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANFENG COUNTY YU SEYUAN TEA IND CO LTD
Filing Date
2025-05-19
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing tea withering equipment is inconvenient during the turning process, resulting in uneven withering and affecting tea quality and efficiency.

Method used

A withering device with a flipping structure was designed, which includes a flipping roller and a reciprocating structure. The rotation and reciprocating movement of the flipping roller are realized by the meshing of gears and racks. Automatic control is carried out in conjunction with temperature and humidity sensors to ensure withering uniformity.

Benefits of technology

It achieves uniformity and automation in the tea withering process, improves tea quality and production efficiency, and saves labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a withering device for the initial processing of tea leaves, including a tea withering device and a placing wire rack. A heating element is installed at the bottom of the tea withering device, a temperature sensor is installed on one side of the device, and a humidity sensor is installed at one end of the device. The placing wire rack is installed at the top of the heating element, and a control panel is installed on one side of the device. A flipping structure, including a moving groove, is provided on one side of the device. This utility model, by providing a flipping structure, allows the flipping roller to rotate slowly as it moves to one side through the meshing of gears and racks during flipping. This allows the flipping roller to repeatedly flip the tea leaves through the surface blades while moving, resulting in more even heating during withering and better withering effect, thus completing the withering process.
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Description

Technical Field

[0001] This utility model relates to the field of tea primary processing technology, and in particular to a withering device for tea primary processing. Background Technology

[0002] One step in the initial processing of tea is withering, which is the first crucial step in tea making. Its main purpose is to control the evaporation of moisture from fresh leaves, laying the foundation for subsequent processes such as rolling, fermentation (or fixation). Its core function is to allow the fresh leaves to lose water to a suitable level, making the leaves softer and more resilient, while simultaneously triggering enzymatic oxidation reactions, thus initially forming the aroma, flavor, and appearance characteristics of the tea. A withering device is used during the initial processing of tea.

[0003] To address this issue, patent specification CN212279726U discloses a preliminary processing device for white tea withering. This device primarily solves the problems of low tea quality and low work efficiency in existing white tea withering techniques. Its key feature is that the withering chamber is equipped with multiple withering processing devices, each including a dehumidifier, a withering trough, a blower, and an air supply duct. The air outlet of the dehumidifier is connected to an exhaust pipe via a pipe, which is open to the outside of the withering chamber. The pipe is also connected to a hot air supply duct corresponding to the air inlet of the blower. An exhaust control switch is installed on the exhaust pipe, and an air supply control switch is installed on the hot air supply duct. This invention alters the temperature and humidity of the microenvironment within the withering chamber, which is beneficial for producing high-quality white tea, resulting in high work efficiency, labor savings, reduced labor costs, and the elimination of safety hazards.

[0004] When the above-mentioned technology is used, it changes the temperature and humidity of the microenvironment in the withering chamber, which is conducive to producing high-quality white tea. It has high work efficiency, saves labor, reduces labor costs, and eliminates safety hazards. However, it is inconvenient to turn the tea leaves over during withering, which makes it easy for the tea leaves to wither unevenly. Therefore, a withering device for the initial processing of tea is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a withering device for the initial processing of tea, in order to solve the problem that existing withering devices for the initial processing of tea are inconvenient to flip the tea leaves during withering, which makes it easy for the tea leaves to wither unevenly.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a withering device for the initial processing of tea, comprising a tea withering device and a placing wire rack;

[0007] A heating element is installed at the bottom of the tea withering device, a temperature sensor is installed on one side of the tea withering device, a humidity sensor is installed at one end of the tea withering device, a placing rack is installed at the top of the heating element, and a control panel is installed on one side of the tea withering device.

[0008] A flipping structure is provided on one side of the tea withering device. The flipping structure includes a moving groove, which is opened inside one end of the tea withering device. A rack is installed at the bottom of the moving groove, a gear is installed at the top of the rack, and a flipping roller is installed at one end of the gear.

[0009] Preferably, a movable groove is provided inside one side of the gear, a movable disc is installed inside the movable groove, and a connecting shaft is fixed to one end of the movable disc.

[0010] Preferably, the inner diameter of the movable groove is larger than the outer diameter of the movable disk, and the movable groove and the movable disk are rotatably connected.

[0011] Preferably, the outer side of the turning roller is provided with multiple sets of blades, which are arranged in a ring on the outer side of the turning roller.

[0012] Preferably, a reciprocating structure is provided on one side of the tea withering device. The reciprocating structure includes a mounting box, which is installed on one side of the tea withering device. A reciprocating lead screw is installed inside the mounting box, and a threaded sleeve is installed on the outside of the reciprocating lead screw. One end of the threaded sleeve is fixed to one end of the connecting shaft.

[0013] Preferably, a motor is installed at one end of the mounting box, and one end of the motor passes through one side of the mounting box and is connected to one side of the reciprocating lead screw.

[0014] Preferably, the threaded sleeve is fitted onto the outside of the reciprocating lead screw, and the threaded sleeve and the reciprocating lead screw form a threaded connection.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up a flipping structure, the meshing between gears and racks during flipping allows the flipping roller to rotate slowly as it moves to one side. This allows the flipping roller to repeatedly flip the tea leaves through the surface blades while moving, resulting in more even heating of the tea leaves during withering and a better withering effect, thus completing the withering process of the tea leaves.

[0017] 2. By setting up a reciprocating structure, when turning the tea leaves over during withering, the reciprocating screw and the screw sleeve can drive the turning roller to move back and forth on the surface of the screen frame, making it more convenient to turn the tea leaves over without manual turning, thus saving labor costs. Attached Figure Description

[0018] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0020] Figure 3 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0021] Figure 4 This is a top view partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0022] Figure 5 This is a three-dimensional structural schematic diagram of a partial cross-section of the flipping structure of this utility model.

[0023] In the diagram: 1. Tea withering device; 2. Reciprocating structure; 201. Mounting box; 202. Motor; 203. Reciprocating lead screw; 204. Sleeve; 3. Placement frame; 4. Turning structure; 401. Turning roller; 402. Rack; 403. Moving groove; 404. Gear; 405. Connecting shaft; 406. Movable disc; 407. Movable groove; 5. Control panel; 6. Temperature sensor; 7. Heating component; 8. Humidity sensor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model embodiment provides a withering device for the initial processing of tea leaves, such as... Figures 1-5 As shown, it includes a tea withering device 1 and a placing rack 3; a heating component 7 is installed at the bottom of the tea withering device 1, a temperature sensor 6 is installed on one side of the tea withering device 1, a humidity sensor 8 is installed at one end of the tea withering device 1, the placing rack 3 is installed at the top of the heating component 7, and a control panel 5 is installed on one side of the tea withering device 1.

[0026] A reciprocating structure 2 is provided on one side of the tea withering device 1. The reciprocating structure 2 includes a mounting box 201, which is installed on one side of the tea withering device 1. A reciprocating lead screw 203 is installed inside the mounting box 201, and a threaded sleeve 204 is installed on the outside of the reciprocating lead screw 203. One end of the threaded sleeve 204 is fixed to one end of the connecting shaft 405. A motor 202 is installed at one end of the mounting box 201. One end of the motor 202 passes through one side of the mounting box 201 and is connected to one side of the reciprocating lead screw 203. The threaded sleeve 204 is sleeved on the outside of the reciprocating lead screw 203, and a threaded connection is formed between the threaded sleeve 204 and the reciprocating lead screw 203.

[0027] In a further preferred embodiment of this utility model, such as Figures 1-5 As shown: During tea withering, the tea leaves are placed on top of the placement rack 3. After placement, the placement rack 3 is inserted into the tea withering device 1 and secured by fixing bolts. Once the placement rack 3 is installed, the cover plate is placed on top of the tea withering device 1, and then the heating component 7 is started by connecting an external power source for drying. After the heating component 7 is started, the temperature sensor 6 measures the internal temperature of the tea withering device 1 by observing the changes in the physical or chemical parameters of its internal sensitive element with temperature. The core function is to convert the temperature signal into an electrical signal, which is then transmitted through the control panel 5. The display allows for monitoring of the internal temperature of the tea withering device 1. During tea withering, the humidity sensor 8 measures humidity by observing the physical / chemical changes in the internal sensitive material after adsorbing or releasing moisture, thus monitoring the internal humidity of the tea withering device 1. When the tea is withering, the motor 202 is started. After starting, the motor 202 drives the reciprocating screw 203 to rotate. When the reciprocating screw 203 rotates, it engages with the threaded sleeve 204, thereby driving the turning roller 401 to move back and forth on the surface of the mesh frame 3, making it easier for the turning roller 401 to turn the tea leaves.

[0028] A flipping structure 4 is provided on one side of the tea withering device 1. The flipping structure 4 includes a moving groove 403, which is opened inside one end of the tea withering device 1. A rack 402 is installed at the bottom of the moving groove 403, and a gear 404 is installed at the top of the rack 402. A flipping roller 401 is installed at one end of the gear 404. A movable groove 407 is opened inside one side of the gear 404. A movable disc 406 is installed inside the movable groove 407. A connecting shaft 405 is fixed at one end of the movable disc 406. The inner diameter of the movable groove 407 is larger than the outer diameter of the movable disc 406. The movable groove 407 and the movable disc 406 are rotatably connected. Multiple sets of blades are provided on the outer side of the flipping roller 401. The multiple sets of blades are arranged in a ring on the outer side of the flipping roller 401.

[0029] In a further preferred embodiment of this utility model, such as Figures 1-5As shown: When the thread sleeve 204 drives the turning roller 401 to move through the gear 404, the meshing between the gear 404 and the rack 402 will drive the turning roller 401 to rotate. Since the gear 404 is provided with a movable groove 407, the movable groove 407 will rotate outside the movable disk 406 when the gear 404 rotates, so that the turning roller 401 can rotate. Thus, the turning roller 401 moves while repeatedly turning the tea leaves through the surface blades, making the tea leaves more evenly heated during withering and improving the withering effect, thereby completing the withering work of the tea leaves.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A withering device for the initial processing of tea leaves, characterized in that: Includes a tea withering device (1) and a placing rack (3); A heating element (7) is installed at the bottom of the tea withering device (1), a temperature sensor (6) is installed on one side of the tea withering device (1), a humidity sensor (8) is installed at one end of the tea withering device (1), a placement rack (3) is installed at the top of the heating element (7), and a control panel (5) is installed on one side of the tea withering device (1). A flipping structure (4) is provided on one side inside the tea withering device (1). The flipping structure (4) includes a moving groove (403). The moving groove (403) is opened inside one end of the tea withering device (1). A rack (402) is installed at the bottom of the moving groove (403). A gear (404) is installed at the top of the rack (402). A flipping roller (401) is installed at one end of the gear (404).

2. The withering device for primary processing of tea according to claim 1, characterized in that: The gear (404) has an internal movable groove (407) on one side, and a movable disc (406) is installed inside the movable groove (407). A connecting shaft (405) is fixed to one end of the movable disc (406).

3. A withering device for primary processing of tea according to claim 2, characterized in that: The inner diameter of the movable groove (407) is larger than the outer diameter of the movable disk (406), and the movable groove (407) and the movable disk (406) are rotatably connected.

4. A withering device for primary processing of tea according to claim 1, characterized in that: The outer side of the turning roller (401) is provided with multiple sets of blades, which are arranged in a ring on the outer side of the turning roller (401).

5. A withering device for primary processing of tea according to claim 1, characterized in that: A reciprocating structure (2) is provided on one side of the tea withering device (1). The reciprocating structure (2) includes a mounting box (201). The mounting box (201) is installed on one side of the tea withering device (1). A reciprocating lead screw (203) is installed inside the mounting box (201). A thread sleeve (204) is installed on the outside of the reciprocating lead screw (203). One end of the thread sleeve (204) is fixed to one end of the connecting shaft (405).

6. A withering device for primary processing of tea according to claim 5, characterized in that: A motor (202) is installed at one end of the mounting box (201), and one end of the motor (202) passes through one side of the mounting box (201) and is connected to one side of the reciprocating lead screw (203).

7. A withering device for primary processing of tea according to claim 5, characterized in that: The threaded sleeve (204) is sleeved on the outside of the reciprocating lead screw (203), and the threaded sleeve (204) and the reciprocating lead screw (203) form a threaded connection.