A tea leaf spreading and airing screen device
By designing a tea-spreading screen device, and utilizing components such as a conveyor frame, support plate, sieve cylinder, and vibrator, the uniform spreading of tea leaves and automatic slag removal are achieved. This solves the problems of low efficiency and impurity contamination in traditional spreading processes, and improves the automation and quality of tea processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional tea-spreading and drying processes are inefficient, result in uneven thickness, and are prone to contamination by impurities. Mechanical spreading and drying equipment, on the other hand, spreads the tea unevenly and requires manual cleaning, increasing labor intensity and contaminating the tea.
Design a tea-spreading screen device, which uses components such as a conveyor frame, support plate, sieve cylinder and vibrator to achieve uniform tea spreading, automatic slag removal and continuous operation. The controller drives the sieve cylinder and drive device to achieve uniform tea spreading, the vibrator vibrates to remove slag, and the collection plate automatically collects the residue.
This achieves consistency in the thickness and coverage area of tea leaves, reduces the frequency of manual cleaning, improves production efficiency and tea quality, and reduces labor intensity and costs.
Smart Images

Figure CN224482869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea processing technology, and more specifically to a tea-spreading and drying screen device. Background Technology
[0002] In the initial processing of tea, spreading and drying is one of the key steps. Traditional tea spreading and drying processes mostly rely on manual spreading of tea leaves to allow the fresh leaves to wither appropriately, dissipate their grassy smell, and initially remove moisture. Traditional spreading and drying is usually carried out on fixed bamboo mats or drying nets, which has problems such as low efficiency, uneven thickness, and easy introduction of impurities. Although existing mechanical spreading and drying equipment has partially automated the process, it still suffers from uneven spreading, which can easily lead to tea leaf accumulation and affect the drying effect; it requires manual cleaning of screen residue, increasing labor intensity and easily contaminating the tea leaves; and it has limited functionality, requiring additional sieving and collection equipment.
[0003] Therefore, there is an urgent need to design an automated and continuous tea-drying screen device. Utility Model Content
[0004] This utility model provides a tea-drying screen device to solve the problems existing in the prior art.
[0005] To achieve the above objectives, this utility model provides a tea-drying sieve device, comprising: a conveyor frame, on which multiple support plates are rotatably mounted, the support plates being used to place drying boards; symmetrical supports are provided on both sides of one end of the conveyor frame, and a controller is provided on one side of each support; the controller includes a motor, which drives a small gear to rotate via a drive rod, the small gear meshing with a large gear, the large gear being fixedly connected to a connecting shaft; a rotatable filter cylinder is provided between the supports; the closed end of the filter cylinder is fixedly connected to the connecting shaft; the other end is an open end, mounted on the support via a rotating shaft; a driving device is also provided inside the conveyor frame, driving the support plates to move forward at a constant speed along the inner circumference of the conveyor frame.
[0006] Preferably, the conveyor rack can hold multiple drying boards, and the drying boards are provided with multiple perforations.
[0007] Preferably, the funnel is mounted directly above the conveyor frame, and the body of the funnel is composed of multiple thin strips arranged with gaps between them, through which tea leaves can be poured out sequentially.
[0008] Preferably, the conveyor frame is also equipped with a storage plate inside, and the storage plate protrudes out of the conveyor frame and has an outlet. A storage box is placed under the outlet to collect tea residue that falls from the holes in the drying board.
[0009] Preferably, the driving device includes a driver, and a driving wheel is provided below the driver. The driving wheel engages between the support plates and drives the support plates to move forward at a constant speed. The driver is also provided with a vibrator, which vibrates the support plate, causing the drying board placed on the support plate to vibrate and causing tea residue to fall from the holes of the drying board.
[0010] Preferably, the storage plate is connected to the driver via a connecting rod, and one side of the storage plate is in contact with the vibrator. The vibrator causes the tea residue stored in the storage plate to fall out of the outlet through vibration.
[0011] Compared with the prior art, the present invention has the following advantages:
[0012] Uniform and consistent material distribution: Driven by a controller, the rotating funnel (with a narrow slit structure in the barrel) allows tea leaves to be continuously and evenly sprinkled onto the uniformly moving drying board below, ensuring consistent tea leaf thickness and coverage area, thus laying the foundation for uniform withering.
[0013] Highly efficient automatic residue removal: The vibrator integrated into the drive unit can effectively vibrate the support plate and the drying plate on it, so that the small fragments, tea stems and other residues mixed in with the tea leaves can fall into the storage plate below through the holes on the drying plate in time, which significantly reduces the frequency and difficulty of manual cleaning.
[0014] Automatic residue collection: The internal storage plate, outlet, and storage box of the device, together with the vibration of the vibrator on the storage plate, can automatically collect and discharge the tea residue that falls from the drying plate, keeping the inside of the equipment clean and improving the purity of the finished tea.
[0015] Continuous operation: The drive unit (driver, drive wheel) inside the conveyor frame drives the support plate to move forward at a uniform speed and continuously along the inner circumference of the conveyor frame, realizing a continuous operation process of tea from spreading, drying, slag removal to transfer and discharge, which greatly improves production efficiency.
[0016] Reduced labor intensity and costs: Automation, continuous conveying, and automatic slag collection significantly reduce the manpower required for manual spreading, turning, and cleaning of residues, thereby reducing labor intensity and labor costs.
[0017] Improving the quality of withering: Even distribution of the cloth and timely removal of residue ensure the breathability of the tea leaves during the withering process, which is conducive to uniform withering and ultimately improves the quality of the tea. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0019] Figure 1 The attached figure is a structural schematic diagram of this utility model.
[0020] Figure 2 The attached figure is a schematic diagram of the drying board structure of this utility model.
[0021] Figure 3 The attached figure is a schematic diagram of the controller structure of this utility model.
[0022] Figure 4 The attached figure is a schematic diagram of the drive device structure of this utility model.
[0023] Reference numerals: 1. Conveyor frame; 2. Support plate; 3. Bracket; 4. Strainer; 5. Controller; 6. Rotating shaft; 7. Outlet; 8. Storage box; 16. Drying board; 9. Motor; 10. Pinion; 11. Gear; 12. Drive wheel; 13. Storage board; 14. Vibrator; 15. Driver; 16. Drying board. Detailed Implementation
[0024] To facilitate understanding by those skilled in the art, various embodiments of this patent will be described below with reference to text and accompanying drawings. For clarity, many practical details will be explained in the following description. However, it should be understood that these practical details in the specification should not be used to limit this patent. That is, in some embodiments of this patent, these practical details are not essential. Furthermore, for ease of understanding, some conventional structures and components will be illustrated in the drawings in a simple schematic manner.
[0025] In the description of this patent, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent 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. Therefore, they should not be construed as limitations on this patent.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this patent, "a plurality of" means two or more, unless otherwise explicitly specified.
[0027] In this patent, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
[0028] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this patent.
[0029] Please see the appendix Figure 1-4 This utility model discloses a tea-drying sieve device, comprising: a conveyor frame 1, on which multiple support plates 2 are rotatably mounted, and drying boards 16 can be placed on the support plates 2; symmetrical brackets 3 are provided on both sides of one end of the conveyor frame 1, and a controller 5 is provided on one side of the bracket 3; the controller 5 includes a motor 9, which drives a small gear 10 to rotate via a drive rod, the small gear 10 meshing with a large gear 11, and the large gear 11 being fixedly connected to a connecting shaft; a rotatable sieve cylinder 4 is provided between the brackets 3; the closed end of the sieve cylinder 4 is fixedly connected to the connecting shaft; the other end is an open end, mounted on the bracket 3 via a rotating shaft; a driving device is also provided inside the conveyor frame 1, which drives the support plates 2 to move forward at a constant speed along the inner circumference of the conveyor frame 1.
[0030] Specifically, the conveyor frame 1, serving as the main supporting structure of the device, is a ring-shaped frame. Multiple support plates 2 are rotatably mounted on the conveyor frame 1, forming a chain-like transmission structure. Brackets 3 are symmetrically arranged on both sides of one end of the conveyor frame 1, providing support for the sieve cylinder 4. The motor 9 inside the controller 5 drives the pinion 10 to rotate via a drive rod. The pinion 10 meshes with the large gear 11, thereby driving the connecting shaft fixedly connected to the large gear 11 to rotate, thus rotating the sieve cylinder 4. The tea leaves are then evenly sprinkled through the narrow gaps after being added from the open end. The drive device inside the conveyor frame 1 provides power to propel the support plates 2 forward at a constant speed along the inner circumference of the conveyor frame 1, similar to the movement of a chain on a sprocket.
[0031] To further optimize the above technical solution, the conveyor frame 1 can hold multiple drying boards 16, and the drying boards 16 are provided with multiple drainage holes.
[0032] Specifically, the drying board 16 is a rectangular screen with evenly distributed perforations on its surface, used to remove tea residue during the subsequent tea spreading and drying process. The drying board 16 can be available in various models with different perforation densities to control tea quality, and is placed on the support plate 2. The conveyor frame 1 can accommodate multiple drying boards simultaneously, enabling continuous spreading and drying operations.
[0033] To further optimize the above technical solution, the funnel 4 is mounted directly above the conveyor frame 1. The body of the funnel is composed of multiple thin strips arranged with gaps between them, through which tea leaves can be sprinkled out one by one.
[0034] Specifically, the body of the four-barreled strainer is composed of longitudinally arranged thin strips with a spacing of 5-10mm. The tea leaves are sprinkled into the drying board below in a curtain-like manner through the gaps.
[0035] To further optimize the above technical solution, the conveyor frame 1 is also provided with a storage plate 13 inside. The storage plate 13 protrudes from the conveyor frame 1 and is provided with an outlet 7. A storage box 8 is placed under the outlet 7 to collect tea residue that falls from the holes of the drying plate 16.
[0036] Specifically, the storage board 13 is inclined and positioned inside the lower part of the conveyor rack, with one end extending to the outlet 7. A storage box 8 is placed below the outlet. Residue falling off the drying board slides along the storage board into the outlet and eventually into the storage box.
[0037] To further optimize the above technical solution, the driving device includes a driver 15, a driving wheel 12 is provided below the driver 15, the driving wheel 12 is engaged between the support plates 2, and drives the support plates 2 to move forward at a constant speed; the driver 15 is also provided with a vibrator 14, the vibrator 14 vibrates the support plates 2, causing the drying plate 16 placed on the support plates 2 to vibrate, causing tea residue to fall from the holes of the drying plate 16.
[0038] Specifically, the driver 15 serves as the power source for the drive device, and the drive wheel 12 below engages with the support plate 2, much like the engagement of gears and chains, driving the support plate 2 to move forward at a constant speed. At the same time, the vibrator 14 on the driver 15 generates vibrations when it operates, which are transmitted to the support plate 2, causing the drying plate 16 placed on the support plate 2 to vibrate, prompting tea residue to fall from the holes.
[0039] To further optimize the above technical solution, the storage plate 13 is connected to the driver 15 through a connecting rod, and one side of the storage plate 13 is in contact with the vibrator 14. The vibrator 14 causes the tea residue stored in the storage plate 13 to fall out of the outlet 7 through vibration.
[0040] Specifically, the receiving plate 13 is fixed to the driver 15 via a connecting rod, and one side of it contacts the vibrator 14. When the vibrator is working, it synchronously vibrates the receiving plate to prevent residue accumulation and ensure that it slides smoothly into the outlet 7.
[0041] In use: Place multiple drying boards 16 on the support plate 2 in sequence; start the controller 5, the motor 9 drives the small gear 10 to rotate, and drives the sieve cylinder 4 to rotate slowly through the large gear 11; put the tea leaves into the open end of the sieve cylinder, and the tea leaves are evenly sprinkled onto the drying boards 16 below through the narrow gaps; the drive device drives the support plate 2 to move at a constant speed, and the drying boards receive the tea leaves in sequence and spread them out to dry; the vibrator 14 continuously vibrates the support plate, so that the tea residue falls into the collection plate 13 through the holes of the drying board 16; the residue slides along the inclined collection plate 13 into the outlet 7, and finally enters the collection box 8 to complete the collection.
[0042] This device achieves integrated operation of tea leaf spreading, sieving, and residue treatment through automated control, significantly improving processing efficiency and tea quality.
[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.
[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A tea-drying sieve device, characterized in that, include: A conveyor frame (1) is provided with multiple rotatable support plates (2), and the support plates (2) can hold drying boards (16); the conveyor frame (1) is provided with symmetrical brackets (3) on both sides of one end, and a controller (5) is provided on one side of the bracket (3); the controller (5) includes a motor (9), which drives a small gear (10) to rotate through a drive rod. The small gear (10) meshes with a large gear (11), and the large gear (11) is fixedly connected to a connecting shaft; a sieve cylinder (4) is provided between the brackets (3); the closed end of the sieve cylinder (4) is fixedly connected to the connecting shaft; the other end is an open end, which is mounted on the bracket (3) through a rotating shaft (6); the conveyor frame (1) is also provided with a drive device inside, which drives the support plate (2) to move forward at a constant speed along the inner circumference of the conveyor frame (1).
2. The tea-drying screen device according to claim 1, characterized in that, The conveyor frame (1) can hold multiple drying boards (16), and the drying boards (16) are provided with multiple holes.
3. The tea-drying screen device according to claim 1, characterized in that, The sieve (4) is set up directly above the conveyor frame (1). The body of the sieve is composed of multiple thin strips arranged in a row, with gaps between the strips, through which tea leaves can be sprinkled out one by one.
4. The tea-drying screen device according to claim 1, characterized in that, The conveyor frame (1) is also equipped with a storage plate (13) inside. The storage plate (13) protrudes from the outside of the conveyor frame (1) and is also equipped with an outlet (7). A storage box (8) is placed under the outlet (7) to store the tea residue that falls from the hole of the drying board (16).
5. The tea-drying sieve device according to claim 4, characterized in that, The driving device includes a driver (15), and a driving wheel (12) is provided below the driver (15). The driving wheel (12) is engaged between the support plates (2) to drive the support plates (2) to move forward at a constant speed. The driver (15) is also provided with a vibrator (14). The vibrator (14) vibrates the support plates (2) to make the drying plate (16) placed on the support plates (2) vibrate, so that the tea residue falls from the holes of the drying plate (16).
6. The tea-drying sieve device according to claim 5, characterized in that, The storage plate (13) is connected to the driver (15) via a connecting rod. One side of the storage plate (13) is in contact with the vibrator (14). The vibrator (14) causes the tea residue stored in the storage plate (13) to fall out of the outlet (7) through vibration.