Tea leaf cooling and withering device

By designing a tea withering and drying device, the tea leaves are evenly turned over using components such as a mixing connecting plate and a stirring rotating column. Combined with a drying fan, a stable airflow is formed, which solves the problems of large footprint, high labor intensity, and insufficient withering in traditional withering methods, and achieves uniform drying and quality improvement of tea leaves.

CN224234635UActive Publication Date: 2026-05-15NINGDE HONGCHUN TEA CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGDE HONGCHUN TEA CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional methods of drying tea leaves require a large area, involve high labor intensity, and have low production efficiency. Furthermore, the quality of the tea leaves is easily affected by environmental factors during the drying process, and relying solely on the stirring rod cannot adequately change the position, resulting in insufficient drying.

Method used

Design a tea drying and withering device. Through the synergistic action of components such as the mixing connecting plate and the stirring rotating column, the tea leaves are constantly changing position. Combined with the airflow sent in by the drying fan, the moisture in all parts of the tea leaves is evenly evaporated.

Benefits of technology

This method achieves uniform drying during the tea-withering process, improves production efficiency, reduces labor intensity, and enhances the consistency of tea quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224234635U_ABST
    Figure CN224234635U_ABST
Patent Text Reader

Abstract

The utility model discloses a tea leaf cooling and withering device which comprises an air drying box, two mounting plates are arranged on the upper surface of the air drying box, the side walls of the mounting plates are fixedly connected with a mixing motor, the output end of the mixing motor is fixedly connected with a stirring rotating column, and the stirring rotating column is located between the two mounting plates; a plurality of rotating rollers are fixedly connected to the outer surface of the stirring rotating column, a mixing rotating column is rotationally connected to the interior of each rotating roller, and a plurality of mixing connecting plates are fixedly connected to the outer surface of each mixing rotating column. The positions of tea leaves are continuously changed under the action of the mixing connecting plate, so that airflow fed into the ventilation groove by the drying fan can uniformly blow each piece of tea leaves, and it is guaranteed that moisture of all parts of the tea leaves can be evaporated at the consistent speed; the tea leaves placed on the airing plate are stirred in all directions and at multiple angles, so that the tea leaf airing and withering efficiency is greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] Regarding the technology related to tea drying and withering racks, the traditional method of drying tea leaves involves spreading fresh tea leaves flat on the ground, typically 2-6 centimeters thick. This method requires a large space, necessitating tea factories to have ample open space for drying. Furthermore, the tea leaves need to be frequently turned over during the drying process to prevent excessive accumulation that could lead to temperature increases and damage to the fresh leaves. This operation is labor-intensive and has low production efficiency. At the same time, temperature and humidity must be constantly monitored during drying. Cloudy weather and temperature differences between day and night can prevent the fresh leaves from evaporating moisture in time, affecting the quality of the tea. In such cases, the drying location needs to be adjusted, but tea leaves spread on the ground are inconvenient to move, and the fresh leaves are easily damaged during the transfer process.

[0003] In tea withering and drying devices, relying solely on the stirring rod cannot adequately reposition the tea leaves, leading to insufficient withering and drying. Utility Model Content

[0004] The purpose of this invention is to provide a tea drying and withering device. By continuously changing the position of the tea leaves under the action of the mixing and connecting plate, the airflow sent by the drying fan into the ventilation duct can be evenly blown onto each tea leaf, ensuring that the moisture in all parts of the tea leaves can evaporate at a relatively uniform rate.

[0005] To achieve the above objectives, a tea withering and drying device is provided, comprising: a drying box, wherein two mounting plates are disposed on the upper surface of the drying box, a mixing motor is fixedly connected to the side wall of the mounting plates, a stirring rotating column is fixedly connected to the output end of the mixing motor and is located between the two mounting plates, a plurality of rotating rollers are fixedly connected to the outer surface of the stirring rotating column, a mixing rotating column is rotatably connected inside each of the rotating rollers, and a plurality of mixing connecting plates are fixedly connected to the outer surface of the mixing rotating column. This structure, through multi-component coordinated stirring, ensures that the tea leaves are evenly turned over, facilitating all-round contact with air for uniform drying.

[0006] According to the aforementioned tea withering and drying device, the mixing connecting plates are symmetrically arranged on the left and right sides of the rotating rollers, which are evenly distributed on the outer surface of the stirring rotating column. This symmetrical and evenly distributed design ensures no dead corners in the stirring process, comprehensively improving the uniformity of tea withering and drying.

[0007] According to the aforementioned tea drying and withering device, a ventilation slot is provided on the upper surface of the drying box, and a drying board is fixedly connected to the inner wall of the ventilation slot, with the drying board and a mixing connecting plate being compatible. The ventilation slot and the drying board work together to provide a good ventilation environment, and the compatible mixing connecting plate facilitates turning the tea leaves to accelerate drying.

[0008] According to the aforementioned tea withering device, a drying fan is fixedly connected to the rear surface of the drying box, and the output end of the drying fan is connected to the interior of the ventilation duct. The drying fan supplies air to the ventilation duct, forming a stable airflow, effectively accelerating the evaporation of moisture from the tea leaves and improving the withering efficiency.

[0009] According to the aforementioned tea drying and withering device, guide grooves are provided on both the left and right sides of the ventilation duct, and the interior of the guide grooves is connected to the upper surface of the drying box. A controller is fixedly connected to the side wall of the drying box, and support legs are fixedly connected to the four corners of the lower surface of the drying box. The guide grooves facilitate component movement, the controller provides precise control, and the support legs provide stable support for the equipment to ensure operation.

[0010] According to the aforementioned tea withering and drying device, two guide wheels are rolledly connected to the inner surface of the guide groove. A connecting rotating column is rotatably connected inside the two guide wheels, and support columns are fixedly connected to both sides of the connecting rotating column. The guide wheels, connecting rotating column, and support columns cooperate to allow for flexible movement of the components and convenient adjustment of the stirring position.

[0011] According to the aforementioned tea leaf withering device, a drive connecting column is provided on the side wall of the support column, and one end of the drive connecting column is fixedly connected to a connecting rotating column. A belt is rotatably connected to the outer surface of the drive connecting column. The drive connecting column and the belt work together to efficiently transmit power and stably drive the connecting rotating column and related components to move.

[0012] According to the aforementioned tea leaf withering device, a support rod is fixedly connected to the inner wall of the support column, a movable motor is fixedly connected to the lower surface of the support rod, a drive rotating column is fixedly connected to the output end of the movable motor, a belt drive column is fixedly connected to one end of the drive rotating column, and the outer surface of the belt drive column is rotatably connected to the belt. A support plate is fixedly connected to the upper surface of the support column, and the support plate is fixedly connected to the mounting plate. This structure, through the coordinated operation of the motor, drive column, and support plate, stably provides power and enhances the overall structural stability.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] This utility model is equipped with an installation plate, a mixing motor, a stirring rotating column, a rotating roller, a mixing rotating column, and a mixing connecting plate. By continuously changing the position of the tea leaves under the action of the mixing connecting plate, the airflow sent into the ventilation duct by the drying fan can evenly blow onto each tea leaf, ensuring that the moisture in all parts of the tea leaves can evaporate at a relatively uniform rate.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a perspective view of a tea leaf withering device according to the present invention;

[0018] Figure 2 This is a top view of a tea leaf withering device according to the present invention;

[0019] Figure 3 This is a cross-sectional perspective view of a tea withering and drying device according to the present invention;

[0020] Figure 4 For utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0021] Figure 5 For utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0022] Legend:

[0023] 1. Drying box; 2. Guide groove; 3. Ventilation groove; 4. Controller; 5. Support leg; 6. Stirring rotating column; 7. Rotating roller; 8. Mixing rotating column; 9. Mixing connecting plate; 10. Guide wheel; 11. Connecting rotating column; 12. Drive connecting column; 13. Belt; 14. Belt drive column; 15. Drive rotating column; 16. Moving motor; 17. Support rod; 18. Support plate; 19. Support column; 20. Mounting plate; 21. Drying plate; 22. Drying fan; 23. Mixing motor. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-5This utility model discloses a tea withering device, comprising: a drying box 1, a withering machine consisting of the drying box 1, a drying motor 22, a controller, support legs 5, and a drying plate 21. The overall structure is similar to the commercially available withering machine 6CWD-9. Two mounting plates 20 are provided on the upper surface of the drying box 1. The mounting plates 20 provide a stable mounting support foundation for subsequent components, ensuring accurate positioning and normal operation of related components. A mixing motor 23 is fixedly connected to the side wall of the mounting plate 20. The mixing motor 23 serves as a power source, providing power for the rotation of the stirring rotating column 6, thereby driving a series of mixing components to achieve the stirring and mixing operation of the tea leaves. The output end of the mixing motor 23 is fixedly connected to the stirring rotating column 6, which is located between the two mounting plates 20. The stirring rotating column 6 rotates under the drive of the mixing motor 23, bringing... The rotating roller 7 on the outer surface of the stirring column 6 rotates, causing the mixing rotating column 8 and the mixing connecting plate 9 to operate accordingly, thereby stirring the tea leaves. The cooperation between the connecting plate 9 and the mixing rotating column 8 allows the rotating roller 7 to fully agitate the tea leaves without penetrating them, and prevents the tea leaves from being lifted up by the stirring. The agitation is gentle and effective. Several rotating rollers 7 are fixedly connected to the outer surface of the stirring rotating column 6. The rotating rollers 7 rotate under the drive of the stirring rotating column 6, providing rotational support for the mixing rotating column 8. At the same time, their rotation assists the mixing connecting plate 9 in more comprehensive stirring and mixing of the tea leaves. The mixing rotating column 8 is rotatably connected inside each rotating roller 7. The mixing rotating column 8 can rotate flexibly inside the rotating roller 7, allowing the mixing connecting plate 9 to adaptively adjust according to the position and state of the tea leaves, thereby improving the stirring effect. Several mixing connecting plates 9 are fixedly connected to the outer surface of the mixing rotating column 8.

[0026] The mixing connecting plates 9 are symmetrically arranged on the left and right sides of the rotating roller 7. As the mixing rotating column 8 rotates, the mixing connecting plates 9 stir the tea leaves on the drying plate 21, making them evenly distributed and promoting uniform withering. The rotating rollers 7 are evenly distributed on the outer surface of the mixing rotating column 6. This even distribution ensures that the rotating rollers 7 and mixing connecting plates 9 at each position can effectively stir the tea leaves when the mixing rotating column 6 rotates, avoiding any dead zones. The upper surface of the drying box 1 has ventilation slots 3 for air circulation. The ventilation slots 3, together with the drying fan 22, provide a suitable ventilation environment for the withering of the tea leaves, accelerating moisture evaporation. The drying plate 21 is fixedly connected to the inner wall of the ventilation slot 3. The drying plate 21 is compatible with the mixing connecting plate 9. The drying plate 21 is used to place tea leaves. During the mixing process, the mixing connecting plate 9 can turn the tea leaves on the drying plate 21 to promote full contact between the tea leaves and the air. The rear surface of the drying box 1 is fixedly connected to the drying fan 22. The output end of the drying fan 22 is connected to the inside of the ventilation slot 3. The drying fan 22 sends outside air into the ventilation slot 3 to form an airflow, which accelerates the air flow in the ventilation slot 3 and helps the tea leaves lose moisture more quickly, thus achieving withering. Guide slots 2 are provided on both the left and right sides of the ventilation slot 3, and the inside of the guide slots 2 is connected to the upper surface of the drying box 1. The guide slots 2 provide a guiding path for the movement of the guide wheel 10 and related components, ensuring the stability of their movement. To ensure accuracy, a controller 4 is fixedly connected to the side wall of the drying chamber 1. The controller 4 controls the operation of the entire device, including the start, stop, and parameter adjustment of components such as the mixing motor 23, the moving motor 16, and the drying fan 22, realizing automated control of the equipment. Support legs 5 are fixedly connected to the four corners of the lower surface of the drying chamber 1, supporting the drying chamber 1 and maintaining a certain distance between its bottom and the ground. This facilitates air circulation at the bottom of the device and ensures its stability. Two guide wheels 10 are rolled along the inner surface of the guide groove 2. The guide wheels 10 roll within the guide groove 2, driving the connecting rotating column 11 and related components to move along the guide groove 2, thereby adjusting the position of the stirring components. The two guide wheels 10 are internally rotatably connected to a connecting rotating column 11, which connects the two guide wheels 10 to ensure their synchronous rotation. At the same time, it provides a connection base for components such as the support column 19. Support columns 19 are fixedly connected to both sides of the connecting rotating column 11. The support columns 19 are used to support and fix components such as the drive connecting column 12 and the moving motor 16 to ensure their stability during operation. The side wall of the support column 19 is provided with a drive connecting column 12, and one end of the drive connecting column 12 is fixedly connected to the connecting rotating column 11. Driven by the moving motor 16, the drive connecting column 12 drives the connecting rotating column 11 and the guide wheels 10 to rotate through the belt 13, thereby realizing the movement of the components.

[0027] A belt 13 is rotatably connected to the outer surface of the drive connecting column 12. The belt 13 serves as the power transmission medium, transmitting the power of the moving motor 16 from the belt drive column 14 to the drive connecting column 12, thereby driving the connecting rotating column 11 to rotate. A support rod 17 is fixedly connected to the inner wall of the support column 19. The support rod 17 is used to fix the moving motor 16, ensuring its stable position during operation and enabling the motor to continuously and stably output power. The moving motor 16 is fixedly connected to the lower surface of the support rod 17. The moving motor 16 serves as the power source, providing power to the drive rotating column 15 and the entire moving component, realizing the movement function of the stirring component. The output end of the moving motor 16 is fixedly connected to the drive rotating column 11. The drive column 15 rotates under the drive of the mobile motor 16, which in turn drives the belt drive column 14 to rotate. Power is transmitted through the belt 13. One end of the drive column 15 is fixedly connected to the belt drive column 14, and the outer surface of the belt drive column 14 is rotatably connected to the belt 13. The belt drive column 14 rotates under the drive of the drive column 15, and drives the drive connecting column 12 to rotate through the belt 13, thus realizing power transmission. The upper surface of the support column 19 is fixedly connected to the support plate 18, and the support plate 18 is fixedly connected to the mounting plate 20. The support plate 18 connects the support column 19 and the mounting plate 20, enhancing the stability of the entire structure and ensuring the stability of the mixing component during operation.

[0028] Working Principle: First, evenly place the tea leaves on the drying plate 21 on the inner wall of the ventilation trough 3, ensuring a relatively flat distribution. Check that the support legs 5 are firmly supporting the drying box 1 and that all components are tightly connected, especially key connections such as the stirring rotating column 6 and the mixing motor 23, and the guide wheel 10 and the guide groove 2. Connect the power to the controller 4, mixing motor 23, drying fan 22, and moving motor 16 to prepare for equipment startup. Turn on the drying fan 22 via the controller 4 to send outside air into the ventilation trough 3, creating an airflow and providing the necessary ventilation environment for withering and accelerating moisture evaporation from the tea leaves. Then, start the mixing motor 23, which drives the stirring rotating column 6 to rotate. The rotating roller 7 on the outer surface of the stirring rotating column 6 rotates accordingly, which in turn drives the mixing rotating column 8 and the mixing connecting plate 9 to rotate, stirring and mixing the tea leaves on the drying plate 21, promoting even distribution and full contact with air. If the position of the stirring components needs to be adjusted, start the moving motor 16 via the controller 4. The output of the moving motor 16 drives the drive rotating column 15 to rotate, which in turn drives the belt drive column. 14 rotates, and the belt-driven column 14 drives the drive connecting column 12 to rotate through the belt 13. The drive connecting column 12 is fixedly connected to the connecting rotating column 11, thereby driving the connecting rotating column 11 and the guide wheel 10 to roll in the guide groove 2, realizing the adjustment of the position of the support column 19 and the stirring components, so that the stirring coverage is more comprehensive. During the withering process, the controller 4 monitors parameters such as the wind speed of the drying fan 22, the stirring speed of the mixing motor 23, and the moving frequency of the stirring components driven by the moving motor 16. At the same time, the state of the tea leaves, such as color and humidity changes, is observed. According to the actual situation, the controller 4 adjusts the operating parameters of each component in a timely manner to ensure that the withering effect is optimal. When the tea leaves reach the ideal withering state, the controller 4 first turns off the mixing motor 23 to stop the operation of the stirring rotating column 6 and related stirring components. Then, the moving motor 16 is turned off to stop the stirring components from moving. Finally, the drying fan 22 is turned off to stop ventilation. The drying box 1 is opened, the withered tea leaves on the drying plate 21 are taken out, and the residual tea leaves and debris inside the equipment are cleaned to prepare for the next use.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A tea leaf withering and drying device, comprising: A drying box (1) is characterized in that: two mounting plates (20) are provided on the upper surface of the drying box (1), a mixing motor (23) is fixedly connected to the side wall of the mounting plate (20), a stirring rotating column (6) is fixedly connected to the output end of the mixing motor (23), and the stirring rotating column (6) is located between the two mounting plates (20). A plurality of rotating rollers (7) are fixedly connected to the outer surface of the stirring rotating column (6), and a mixing rotating column (8) is rotatably connected inside each of the rotating rollers (7). A plurality of mixing connecting plates (9) are fixedly connected to the outer surface of the mixing rotating column (8).

2. The tea leaf withering device according to claim 1, characterized in that: The mixing connecting plate (9) is symmetrically arranged on the left and right sides of the rotating roller (7), and the rotating roller (7) is evenly distributed on the outer surface of the stirring rotating column (6).

3. The tea leaf withering device according to claim 1, characterized in that: The upper surface of the air drying box (1) is provided with a ventilation groove (3), and a drying board (21) is fixedly connected to the inner wall of the ventilation groove (3), and the drying board (21) and the mixing connection plate (9) are compatible.

4. The tea leaf withering device according to claim 3, characterized in that: A drying fan (22) is fixedly connected to the rear surface of the drying box (1), and the output end of the drying fan (22) is connected to the interior of the ventilation slot (3).

5. A tea leaf withering and drying device according to claim 4, characterized in that: The ventilation slot (3) is provided with guide slots (2) on both the left and right sides, and the interior of the guide slots (2) is connected to the upper surface of the drying box (1). The side wall of the drying box (1) is fixedly connected with a controller (4), and the four corners of the lower surface of the drying box (1) are fixedly connected with support legs (5).

6. The tea leaf withering device according to claim 5, characterized in that: The inner surface of the guide groove (2) is rolledly connected to two guide wheels (10), and the two guide wheels (10) are rotatably connected to a connecting rotating column (11). Support columns (19) are fixedly connected to both the left and right sides of the connecting rotating column (11).

7. A tea leaf withering device according to claim 6, characterized in that: The side wall of the support column (19) is provided with a drive connecting column (12), and one end of the drive connecting column (12) is fixedly connected to the connecting rotating column (11). The outer surface of the drive connecting column (12) is rotatably connected with a belt (13).

8. A tea leaf withering and drying device according to claim 7, characterized in that: A support rod (17) is fixedly connected to the inner wall of the support column (19). A moving motor (16) is fixedly connected to the lower surface of the support rod (17). A drive rotating column (15) is fixedly connected to the output end of the moving motor (16). A belt drive column (14) is fixedly connected to one end of the drive rotating column (15). The outer surface of the belt drive column (14) is rotatably connected to the belt (13). A support plate (18) is fixedly connected to the upper surface of the support column (19). The support plate (18) and the mounting plate (20) are fixedly connected.