Tea spreading and airing equipment with automatic screening function
By integrating tea processing equipment with withering and sorting functions, the problem of low efficiency in tea production has been solved, achieving efficient tea sorting and stable operation, and meeting the production needs of different tea varieties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-20
- Publication Date
- 2026-03-17
AI Technical Summary
Existing tea production equipment separates the withering and sorting processes, resulting in low production efficiency, limited equipment functionality, and cumbersome operation, making it difficult to meet the sorting standards for different tea varieties and production requirements.
Design a tea-drying device with automatic screening function, integrating drying and screening functions into one unit. Through the combination of support plate, guide plate, screening plate and adjustment components, seamless connection and efficient screening of tea can be achieved. The angle of the support plate is adjusted by worm gear transmission to ensure the stability of the equipment and the convenience of operation.
It improves tea production efficiency, reduces labor costs, meets the selection criteria for different tea varieties, ensures consistent product quality, and enhances equipment stability and ease of operation.
Smart Images

Figure CN223996595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea drying technology, and more specifically, to a tea drying equipment with automatic sorting function. Background Technology
[0002] In tea production, withering and sorting are two crucial steps. In traditional tea production, these two processes are typically conducted separately. In the sorting stage, existing sorting equipment is mostly complex in structure, cumbersome to operate, requires specialized personnel, and has limited sorting accuracy, making it difficult to meet the sorting standards of different tea varieties and production requirements. Furthermore, because the withering and sorting processes are separated, tea needs to be handled multiple times between the two stages. This not only increases the risk of tea damage but also consumes significant time and labor costs, resulting in low overall tea production efficiency.
[0003] While some tea processing equipment exists on the market, these devices fall short in terms of functional integration and ease of operation. Some equipment, though possessing a single function of spreading or sorting, cannot organically combine the two, failing to complete the spreading and sorting of tea in a one-stop manner. Even some equipment claiming to have multiple functions suffers from problems such as inconvenient adjustment and poor equipment stability during actual operation, making it difficult to truly meet the needs of tea production enterprises for efficient and convenient production. Therefore, developing a tea spreading and drying equipment that integrates sorting and spreading functions, improves work efficiency, and is easy to operate has become an urgent problem to be solved in the tea production industry. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a tea drying and spreading device with automatic screening function, which aims to improve the problem that some devices, although they have a single function of drying or screening, cannot achieve the organic combination of the two.
[0005] This utility model is implemented as follows: A tea drying device with automatic screening function includes a working box with an open top. Multiple first support rods are rotatably installed between the two sides of the inner wall of the working box. Support plates are fixedly installed on the first support rods. The multiple support plates are arranged parallel to each other. One end of each first support rod passes through one side of the working box and is fixedly installed with an adjustment component. A guide plate and a screening plate are fixedly installed on the two sides of the inner wall of the working box, respectively. The guide plate and the screening plate are inclined to each other and a vibration motor is installed at their bottom ends. A discharge port is installed at the bottom end of one side of the working box.
[0006] In a preferred embodiment of this utility model, the plurality of first support rods are arranged equidistantly in a straight line, and the plurality of support plates can be rotated to form a bearing plate that separates the work boxes.
[0007] In a preferred embodiment of this utility model, the guide plate is located above the screening plate, and a gap for material feeding is provided between the other end of the guide plate and one side of the inner wall of the working box.
[0008] In a preferred embodiment of this utility model, a first rotating shaft is rotatably installed between the two sides of the inner wall of the working box, a first motor is fixedly installed at one end of the first rotating shaft, a feed plate is fixedly installed on the first rotating shaft, and the feed plate slides in contact with the top of the guide plate.
[0009] In a preferred embodiment of this utility model, the screening plate is characterized by being composed of multiple filter plates fixedly connected together, wherein the multiple filter plates are arranged from small to large from the discharge port of the guide plate to the filter screen at the other end.
[0010] In a preferred embodiment of this utility model, the bottom of the working box is fixedly installed with multiple partitions, the top of the partitions is attached to the bottom of two adjacent filter plates, and the bottom of the inner wall of the working box is inclined.
[0011] In a preferred embodiment of this utility model, the adjusting assembly includes a U-shaped support frame, a worm gear, and a worm. A second rotating shaft is rotatably mounted between the two inner walls of the two support frames. The worm gear is fixedly mounted at one end of the first support rod. Multiple worms are fixedly mounted on the second rotating shaft. The worm gear and the worm are connected in a transmission manner. One end of the second rotating shaft passes through one end of the support frame and a turntable is fixedly mounted thereon. The multiple worm gears and the multiple worms correspond one-to-one.
[0012] In a preferred embodiment of this utility model, the turntable is cross-shaped, an L-shaped frame is fixedly installed at the bottom of the support frame, a spring is fixedly installed at the top of the L-shaped frame, a positioning block is fixedly installed at the top of the spring, a groove matching the turntable is provided at the top of the positioning block, a pull rod is fixedly installed at the bottom of the positioning block, the bottom of the pull rod slides through the L-shaped frame and is fixedly installed with a pull plate, and the positioning block is slidably connected to the outside of the support frame.
[0013] The beneficial effects of this utility model are:
[0014] Integrated sorting and withering improves work efficiency: This utility model integrates tea withering and sorting functions into the same device. After the tea has been withered, it can be sorted directly inside the device without manual transfer. By rotating the support plate, the tea slides onto the guide plate and then enters the sorting stage, reducing the multiple steps of handling tea in the traditional production mode, greatly saving time and labor costs, and significantly improving the overall efficiency of tea production.
[0015] Easy to operate and flexible to adjust: The equipment is equipped with an adjustment component. By rotating the cross-shaped turntable and utilizing the transmission connection of the worm gear and worm, the angle of the support plate can be easily adjusted, thereby controlling the tea leaf slippage process. This design allows operators to conveniently adjust the equipment's operating status according to actual production needs. Simultaneously, the turntable's positioning design, through the cooperation of positioning blocks and springs, ensures the stability of the adjusted support plate position, preventing accidental rotation during tea leaf spreading and sorting, further improving the convenience and stability of equipment operation.
[0016] High screening accuracy: The screening plate consists of multiple filter plates fixedly connected, and the filter screens of the filter plates gradually increase in size from the feed inlet of the guide plate to the other end. This design can grade and screen tea leaves according to their size, meeting the screening standards of different tea varieties and production requirements, improving the accuracy and quality of screening, and ensuring the consistency of the final product quality.
[0017] The equipment boasts a rational structure and stable operation: Guide plates and screening plates are fixedly installed on both sides of the inner wall of the working chamber, with both inclined relative to each other and a vibration motor mounted at the bottom. This facilitates the even distribution and smooth sliding of tea leaves during the screening process. A partition fixed at the bottom of the working chamber not only enhances the stability of the screening plates but also effectively prevents tea leaves of different sizes from mixing during screening. Furthermore, the inclined bottom of the inner wall of the working chamber facilitates the centralized discharge of screened tea leaves, further optimizing the equipment's operating process and improving its overall stability and reliability. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a tea drying device with automatic sorting function provided by an embodiment of the present invention;
[0020] Figure 2 A partial structural diagram of a tea-drying device with automatic sorting function is provided for an embodiment of this utility model.
[0021] Figure 3 A schematic diagram of the structure of the adjustment component is provided for the embodiments of this utility model;
[0022] Figure 4 A partial structural schematic diagram of the adjustment component is provided for an embodiment of this utility model.
[0023] In the diagram: 110-Working box; 111-Guide plate; 112-Screening plate; 113-Discharge port; 114-Feed plate; 115-Baffle plate; 120-First support rod; 121-Support plate; 130-Support frame; 131-Worm gear; 132-Worm; 133-Second rotating shaft; 134-Turntable; 135-L-shaped frame; 136-Spring; 137-Positioning block; 138-Pull rod. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] Please see Figures 1-3 This utility model provides a technical solution: a tea drying equipment with automatic screening function, including a working box 110, the top of the working box 110 is open, multiple first support rods 120 are rotatably installed between the two sides of the inner wall of the working box 110, support plates 121 are fixedly installed on the first support rods 120, the multiple support plates 121 are arranged parallel to each other, the multiple first support rods 120 are arranged equidistantly in a straight line, the multiple support plates 121 can form a bearing plate that separates the working box 110 by rotating, one end of the first support rod 120 passes through one side of the working box 110 and is fixedly installed with an adjustment component, a guide plate 111 and a screening plate 112 are fixedly installed on the two sides of the inner wall of the working box 110 respectively, the guide plate 111 and the screening plate 112 are inclined to each other and a vibration motor is installed at the bottom of each, and a discharge port 113 is installed at the bottom of one side of the working box 110.
[0026] In some specific implementations, the guide plate 111 is positioned above the screening plate 112, and a gap for material feeding is provided between the other end of the guide plate 111 and one side of the inner wall of the working box 110. This allows the spread-out tea leaves to naturally slide onto the screening plate 112, achieving a seamless connection between the spreading and screening processes and improving work continuity. Setting the feeding gap controls the feeding speed and flow rate of the tea leaves, preventing tea leaf accumulation and ensuring the orderly conduct of the screening process.
[0027] In some specific implementations, a first rotating shaft is rotatably mounted between the two sides of the inner wall of the working box 110. A first motor is fixedly mounted at one end of the first rotating shaft, and a feed plate 114 is fixedly mounted on the first rotating shaft. The feed plate 114 slides in contact with the top of the guide plate 111. The first motor drives the feed plate 114 to rotate, which enables the tea leaves to be fed evenly onto the screening plate 112, ensuring uniform distribution of tea leaves during the screening process and improving screening accuracy and efficiency. The sliding contact between the feed plate 114 and the top of the guide plate 111 prevents tea leaves from spilling during the feeding process, reducing material waste, and also ensuring the stability of the equipment operation.
[0028] In some specific implementation schemes, the screening plate 112 is composed of multiple filter plates fixedly connected together. The multiple filter plates are arranged from small to large from the feed port of the guide plate 111 to the other end. Multiple partitions 115 are fixedly installed at the bottom of the working box 110. The top of the partition 115 is attached to the bottom of the two adjacent filter plates. The bottom of the inner wall of the working box 110 is inclined. The partitions 115 separate the screened tea leaves for discharge.
[0029] Please see Figure 3 and Figure 4 The adjustment assembly includes a U-shaped support frame 130, a worm gear 131, and a worm 132. A second rotating shaft 133 is rotatably mounted between the two inner walls of the two support frames 130. A worm gear 131 is fixedly mounted on one end of a first support rod 120. Multiple worms 132 are fixedly mounted on the second rotating shaft 133. The worm gear 131 and the worm 132 are connected by a transmission. One end of the second rotating shaft 133 passes through one end of the support frame 130 and a turntable 134 is fixedly mounted thereon. The multiple worm gears 131 and the multiple worms 132 correspond one-to-one.
[0030] In some specific implementations, the turntable 134 is cross-shaped. An L-shaped frame 135 is fixedly installed at the bottom of the support frame 130. A spring 136 is fixedly installed at the top of the L-shaped frame 135. A positioning block 137 is fixedly installed at the top of the spring 136. The top of the positioning block 137 has a groove that matches the turntable 134. A pull rod 138 is fixedly installed at the bottom of the positioning block 137. The bottom of the pull rod 138 slides through the L-shaped frame 135 and is fixedly installed with a pull plate. The positioning block 137 is slidably connected to the outside of the support frame 130. The cross-shaped turntable 134 is easy for operators to grip and apply force, improving the convenience of adjustment. The cooperation of the positioning block 137 and the spring 136 can position the rotation angle of the turntable 134, making the adjustment of the support plate 121 more precise. After each adjustment, it can stably maintain the set angle, enhancing the reliability of equipment operation.
[0031] Working principle: During use, the tea leaves to be spread out are evenly placed on the support plate 121 for drying. After the drying is completed, the pull plate is pulled to move the pull rod 138 down. The pull rod 138 moves down and moves the positioning block 137 down to disengage from the turntable 134. At the same time, the spring 136 is squeezed, and the turntable 134 is rotated, which drives the second rotating shaft 133 to rotate. The rotation of the second rotating shaft 133 drives the first support rod 120 to rotate through the cooperation of the worm gear 132 and the worm wheel 131. The rotation of the first support rod 120 drives the support plate 121 to rotate, causing the tea leaves to slide onto the guide plate 111. The vibration motor is started to drive the guide plate 111 and the screening plate 112 to vibrate, and the first motor is started to drive the first rotating shaft to rotate. The rotation of the first rotating shaft drives the feeding plate 114 to rotate, so that the tea leaves are evenly fed onto the screening plate 112. Finally, after being screened by the filter plate, the tea leaves are discharged from the outlet 113.
[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A tea spreading device with automatic screening function, characterized in that, Including work box, open top end is established, the first support rod is rotatably installed between the inner wall of two sides of work box, the support plate is fixedly installed on the first support rod, a plurality of support plates are arranged in parallel with each other, one end of the first support rod is fixedly installed adjusting assembly and is fixedly installed adjusting assembly. The screening assembly: the guide plate and the screening plate are fixedly installed on the inner wall of two sides of the work box, the guide plate and the screening plate are arranged at an angle to each other and are provided with vibration motors at the bottom ends, and the discharge port is installed at the bottom end of one side of the work box.
2. The tea spreading device with automatic screening function according to claim 1, characterized in that, A plurality of first support rods are arranged in a straight line at equal intervals, and a plurality of support plates can form a bearing plate by rotating to separate the work box.
3. The tea spreading device with automatic screening function according to claim 1, characterized in that, The guide plate is above the screening plate, and a gap for discharging is arranged between the other end of the guide plate and the inner wall of one side of the work box.
4. The tea spreading device with automatic screening function according to claim 1, characterized in that, The first rotating shaft is rotatably installed between the inner wall of two sides of the work box, the first motor is fixedly installed on one end of the first rotating shaft, and the feeding plate is fixedly installed on the first rotating shaft.
5. The tea spreading device with automatic screening function according to claim 4, characterized in that, The screening plate is composed of a plurality of filter plates fixedly connected, and the filter screens from the discharging port of the guide plate to the other end of the guide plate are arranged from small to large.
6. The tea spreading device with automatic screening function according to claim 5, characterized in that, A plurality of partitions are fixedly installed at the bottom end of the work box, and the top end of the partition is attached to the bottom end between the adjacent two filter plates.
7. The tea spreading device with automatic screening function according to claim 1, characterized in that, The adjusting assembly comprises a U-shaped support frame, a worm gear and a worm, the second rotating shaft is rotatably installed between the inner wall of two sides of the support frame, the worm gear is fixedly installed on one end of the first support rod, a plurality of worms are fixedly installed on the second rotating shaft, the worm gear and the worm are in transmission connection, and the second rotating shaft is rotatably installed on one end of the support frame and is fixedly installed on the rotating disc.
8. The tea spreading device with automatic screening function according to claim 7, characterized in that, The rotating disc is cross-shaped, the L-shaped frame is fixedly installed at the bottom end of the support frame, the spring is fixedly installed at the top end of the L-shaped frame, the positioning block is fixedly installed at the top end of the spring, the positioning block is provided with a groove matched with the rotating disc at the top end, and the pull rod is fixedly installed at the bottom end of the positioning block.