A tea leaf screening apparatus
By combining the automatic telescopic rod and the ring plate, the automatic screening and collection of tea leaves is realized, which solves the problem of cumbersome manual disassembly of the screen in the existing technology, improves the efficiency of tea screening and reduces the labor burden.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YICHANG JINGSHAN YUYA TEA CO
- Filing Date
- 2025-04-09
- Publication Date
- 2026-06-02
AI Technical Summary
Existing tea sorting equipment requires manual disassembly of the screen to remove the tea leaves after sorting, which is cumbersome, reduces sorting efficiency, and increases labor burden.
The system employs a combination of automatic telescopic rods to drive the vertical cylinder to move laterally and the circular plate to move, thereby achieving automatic screening and discharge of tea leaves. The separation of impurities and tea leaves is accomplished by shaking the screening frame, and the opening and closing of the discharge port is controlled by an electric telescopic rod to achieve automatic collection of tea leaves.
It enables automatic screening and collection of tea leaves, improving screening efficiency and reducing the workload of staff.
Smart Images
Figure CN224308917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment technology, and in particular to a tea screening device. Background Technology
[0002] Tea generally consists of the leaves and buds of the tea plant. After picking, tea leaves need to undergo a series of processing steps, including screening to remove impurities and sorting the tea leaves by size.
[0003] For example, Chinese utility model patent application number CN202321824195.2 discloses a tea screening device for tea production, including: a screening box; a screening component, which is set at the upper inlet of the screening box, and vibration components are provided at both ends of the screening component and the screening box; the screening component includes a mounting ring, multiple screens, a side ring, and a fixed ring, the mounting ring is movably set at the upper inlet of the screening box through the vibration components, and the upper end of the mounting ring has a mounting ring groove along the ring, through which the side ring is connected to the mounting ring; multiple screens are arranged at intervals along the material flow direction, and the multiple screens are connected to each other through connecting components, with the uppermost screen fixedly connected to the side ring; the fixed ring is sleeved on the outer circumference of the side ring and threadedly connected to the mounting ring. This utility model solves the problems of screen disassembly and duplication and the inability to quickly export the screened tea, which adversely affect the screening efficiency of tea in the prior art.
[0004] Although the above-mentioned device can complete the screening of tea leaves, after the tea leaves are screened, the staff need to manually disassemble the screen to remove the tea leaves, and then put the screen back in place. The operation process is cumbersome, which reduces the efficiency of tea leaf screening and increases the workload of the staff. Utility Model Content
[0005] This utility model discloses a tea sorting device that solves the problem that the method of removing tea leaves by disassembling the screen is cumbersome and reduces the efficiency of tea sorting.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] A tea sorting device includes a collection frame, a vertical cylinder above the collection frame, and a set of sorting frames arranged from top to bottom, with the sieve holes of the sorting frames decreasing from top to bottom, detachably connected inside the vertical cylinder. A vertical tube passes through the bottom of the sorting frames sequentially inside the vertical cylinder, and a discharge port corresponding to the bottom surface of the sorting frames is opened on the vertical tube. A set of annular plates is installed inside the vertical tube, blocking the discharge ports located within the sorting frames. An electric telescopic rod is installed inside the vertical cylinder to drive the annular plates to move and sequentially open the discharge ports located within the sorting frames. An automatic telescopic rod is installed on the collection frame to drive the vertical cylinder to move laterally.
[0008] Compared with the prior art, the present invention has the following beneficial effects:
[0009] Tea leaves are placed into a vertical cylinder. The electric telescopic rod is activated, causing the cylinder to repeatedly move a set of screening frames horizontally. The tea leaves fall into the uppermost screening frame. As the screening frames vibrate, impurities and smaller tea leaves pass through the sieve holes and fall into the lower screening frames. This vibration of the screening frames completes the screening of tea leaves and the removal of impurities, which then fall into a collection frame and are discharged. The electric telescopic rod is then activated again, driving a set of annular plates to move sequentially, opening the discharge ports on the vertical cylinder one by one. This allows the tea leaves in the screening frames to be discharged through the vertical cylinder, completing the screening and collection process. This invention automatically discharges the screened tea leaves sequentially, eliminating the need for manual operation, thus improving the efficiency of tea screening and reducing the workload of workers. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model from a frontal sectional view;
[0011] Figure 2 This is a cross-sectional structural diagram of the vertical tube of this utility model;
[0012] Figure 3 for Figure 1 A magnified structural diagram at point A.
[0013] In the diagram: 1. Collection frame; 2. Vertical cylinder; 21. Cover plate; 22. Feed hopper; 3. Screening frame; 31. Connecting ring; 32. Fixing block; 4. Vertical pipe; 41. Discharge port; 5. Annular plate; 51. Electric telescopic rod; 52. Fixing rod; 53. Vertical rod; 6. Automatic telescopic rod; 61. Motor; 62. Support plate; 7. Fixing plate; 71. Connecting rod; 72. Connecting block; 73. Battery; 8. Support leg. Detailed Implementation
[0014] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.
[0015] like Figure 1 and Figure 2 As shown, this utility model provides a tea screening device, including a collection frame 1, a vertical cylinder 2 above the collection frame 1, and a set of screening frames 3 distributed from top to bottom detachably connected inside the vertical cylinder 2, with the sieve holes of the set of screening frames 3 decreasing from top to bottom; a vertical tube 4 is provided inside the vertical cylinder 2, which passes through the bottom of the set of screening frames 3 in sequence, and a discharge port 41 corresponding to the bottom surface of the screening frames 3 is opened on the vertical tube 4; a set of annular plates 5 is provided inside the vertical tube 4, which respectively block the discharge ports 41 located in the set of screening frames 3; an electric telescopic rod 51 is provided inside the vertical cylinder 2 for driving the set of annular plates 5 to move and sequentially open the discharge ports 41 located in the set of screening frames 3; and an automatic telescopic rod 6 is provided on the collection frame 1 for driving the vertical cylinder 2 to move laterally. The sieve holes on the screening frame 3 are located at the bottom of the screening frame 3. There are at least three screening frames 3. The inner diameter of the sieve holes on the top screening frame 3 is the largest, and then decreases sequentially downwards. Several sets of discharge ports 41 are opened on the vertical tube 4. The sets of discharge ports 41 are located in a set of screening frames 3. There are at least four discharge ports 41 in a set of screening frames 3. The four discharge ports 41 are arranged in a circular array. After the tea leaves are put into the vertical tube 2, the tea leaves first fall into the top screening frame 3. Then, the extension end of the automatic telescopic rod 6 drives the vertical tube 2 to move the set of screening frames 3 horizontally repeatedly. After the set of screening frames 3 shakes, the impurities and smaller particles in the tea leaves in the top screening frame 3 are removed. The tea leaves fall through the sieve holes at the bottom of the screening frame 3 into another screening frame 3. Smaller impurities and tea dregs in the tea leaves can pass through the sieve holes on a set of screening frames 3 and enter the collection frame 1, and then be discharged through the discharge end at the bottom of the collection frame 1. A set of screening frames 3 can complete the screening of tea leaves of different sizes, so that tea leaves of different sizes are located in a set of screening frames 3 respectively. Then, the electric telescopic rod 51 can be activated to drive a set of annular plates 5 to move, and the discharge port 41 on the vertical pipe 4 located in a set of screening frames 3 can be opened in sequence to facilitate the discharge and collection of tea leaves in a set of screening frames 3, thus completing the screening of tea leaves. The outer wall of the annular plate 5 is in contact with the inner wall of the vertical pipe 4.
[0016] like Figure 1As shown, the telescopic end of the automatic telescopic rod 6 is fixed with a motor 61 via a connecting plate. The rotating shaft of the motor 61 is fixed to the vertical cylinder 2. The fixed end of the automatic telescopic rod 6 is fixed with a support plate 62 connected to the top of the collection frame 1. A support leg 8 connected to the support plate 62 is fixed on the collection frame 1. There are two automatic telescopic rods 6, which are symmetrically distributed from left to right. After the two automatic telescopic rods 6 are activated, the telescopic end of one automatic telescopic rod 6 retracts, and the telescopic end of the other automatic telescopic rod 6 extends, so that the two motors 61 can drive the vertical cylinder 2 to move horizontally repeatedly, causing the screening frame 3 to shake. At the same time, the motors 61 are servo motors, and the rotating shafts of the two motors 61 can drive the vertical cylinder 2 to rotate repeatedly in small amplitudes, so that the tea leaves in the screening frame 3 can be turned over better, and the tea leaves can be screened better. The support leg 8 can increase the firmness of the connection between the support plate 62 and the collection frame 1.
[0017] like Figure 1 and Figure 3 As shown, a fixing plate 7 is located above a set of screening frames 3 inside the vertical cylinder 2. The top and bottom of the fixing plate 7 are both arc-shaped. A connecting rod 71 is fixed on the fixing plate 7, and the other end of the connecting rod 71 is fixed to a connecting block 72 connected to the inner wall of the vertical cylinder 2 by bolts. A storage battery 73 is embedded in the bottom of the fixing plate 7, and the fixed end of the electric telescopic rod 51 is fixed to the bottom of the connecting block 72. The storage battery 73 can supply power to the electric telescopic rod 51. After the electric telescopic rod 51 is started, the telescopic end of the electric telescopic rod 51 can drive a set of annular plates 5 to move up or down. The operator can separate the connecting block 72 from the vertical cylinder 2 and remove the fixing plate 7 from the vertical cylinder 2 to facilitate the inspection and maintenance of the electric telescopic rod 51.
[0018] like Figure 1As shown, the bottom of the screening frame 3 is arc-shaped, and the top of the screening frame 3 is fixed with a connecting ring 31 whose inner diameter decreases from top to bottom; both sides of the screening frame 3 are fixed with fixing blocks 32 that contact the inner wall of the vertical cylinder 2, and the vertical cylinder 2 is threadedly connected to the fixing blocks 32 by screws. The connecting ring 31 prevents tea leaves from accumulating at the top of the screening frame 3 and also better restricts the downward-falling tea leaves, ensuring they enter the screening frame 3 precisely and preventing them from falling outside. The bottom of the screening frame 3 is arc-shaped, allowing the tea leaves to better converge towards the vertical pipe 4, facilitating their entry into the vertical pipe 4 through the discharge port 41 after screening. Workers can remove the screening frame 3 for inspection and maintenance by disassembling the screws and fixing block 32. The bottom of the screening frame 3 is also arc-shaped. After the tea leaves are screened and discharged, the motor 61 can be started to rotate the vertical cylinder 2 180°, turning the bottom of the screening frame 3 upwards. This, combined with the automatic telescopic rod 6 driving the vertical cylinder 2 to move repeatedly, causes the screening frame 3 to vibrate. Simultaneously, the motor 61 repeatedly drives the vertical cylinder 2 to rotate in small amplitudes, causing some tea leaves stuck in the sieve holes to fall downwards and be discharged outside the vertical cylinder 2, thus cleaning the tea leaves stuck in the sieve holes.
[0019] like Figure 1 and Figure 2 As shown, the telescopic end of the electric telescopic rod 51 is fixed with a T-shaped fixing rod 52. The fixing rod 52 is connected to the inner wall of the uppermost annular plate 5. A vertical rod 53 is fixed between every two adjacent annular plates 5. The distance from the top to the bottom of a set of annular plates 5 increases from top to bottom. There are three annular plates 5 in a set. The distance from the top to the bottom of the central annular plate 5 is twice the distance from the top to the bottom of the uppermost annular plate 5, and the distance from the top to the bottom of the lowermost annular plate 5 is three times the distance from the top to the bottom of the uppermost annular plate 5. After the electric telescopic rod 51 is activated, the telescopic end of the electric telescopic rod 51 can drive the uppermost annular plate 5 to move downward through the fixed rod 52. The set of annular plates 5 moves synchronously through the vertical rod 53. The uppermost annular plate 5 can first open the discharge port 41 on the vertical pipe 4 in the uppermost screening frame 3, so that the tea leaves in the uppermost screening frame 3 can be discharged through the vertical pipe 4. Then, after the set of annular plates 5 continues to move downward, it can open the discharge port 41 on the vertical pipe 4 in the central screening frame 3, and discharge the tea leaves in the screening frame 3 through the vertical pipe 4. After the set of annular plates 5 continues to move downward, it can open the discharge port 41 on the vertical pipe 4 in the lowermost screening frame 3, and discharge the tea leaves in the screening frame 3, thus completing the sequential discharge of the screened tea leaves.
[0020] like Figure 1As shown, a cover plate 21 is threadedly connected to the top of the vertical cylinder 2, and a feed hopper 22 is connected to the cover plate 21. The cover plate 21 can seal the top of the vertical cylinder 2 to prevent dust and other impurities from entering the vertical cylinder 2. Workers can feed tea leaves into the vertical cylinder 2 through the feed hopper 22. The fixing plate 7 is circular, and the top and bottom of the fixing plate 7 are arc-shaped. This allows the tea leaves to fall onto the top of the fixing plate 7 after entering the vertical cylinder 2, and then evenly spread to the periphery of the fixing plate 7, and then evenly fall into the screening frame 3 located at the top. This facilitates better screening of the tea leaves and prevents the tea leaves from falling towards only one part of the screening frame 3.
[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A tea sorting device, comprising a collection frame (1), characterized in that: A vertical cylinder (2) is provided above the collection frame (1). A set of screening frames (3) distributed from top to bottom is detachably connected inside the vertical cylinder (2). The number of sieve holes in the set of screening frames (3) decreases from top to bottom. A vertical tube (4) is provided inside the vertical cylinder (2) and passes through the bottom of the set of screening frames (3). A discharge port (41) corresponding to the bottom surface of the screening frame (3) is opened on the vertical tube (4). A set of annular plates (5) is provided inside the vertical tube (4). The set of annular plates (5) blocks the discharge port (41) located in the set of screening frames (3). An electric telescopic rod (51) is provided inside the vertical cylinder (2) to drive the set of annular plates (5) to move and open the discharge port (41) located in the set of screening frames (3) in turn. An automatic telescopic rod (6) is provided on the collection frame (1) to drive the vertical cylinder (2) to move laterally.
2. The tea sorting device according to claim 1, characterized in that: The telescopic end of the automatic telescopic rod (6) is fixed with a motor (61) via a connecting plate. The rotating shaft of the motor (61) is fixed with the vertical cylinder (2). The fixed end of the automatic telescopic rod (6) is fixed with a support plate (62) connected to the top of the collection frame (1). The collection frame (1) is fixed with a support leg (8) connected to the support plate (62).
3. The tea sorting device according to claim 1, characterized in that: The vertical cylinder (2) is provided with a fixing plate (7) located above a set of screening frames (3). The top and bottom of the fixing plate (7) are both arc-shaped. A connecting rod (71) is fixed on the fixing plate (7). The other end of the connecting rod (71) is fixed with a connecting block (72) that is connected to the inner wall of the vertical cylinder (2) by bolts. A storage battery (73) is embedded in the bottom of the fixing plate (7). The fixed end of the electric telescopic rod (51) is fixed to the bottom of the connecting block (72).
4. The tea sorting device according to claim 1, characterized in that: The bottom of the screening frame (3) is arc-shaped, and the top of the screening frame (3) is fixed with a connecting ring (31) whose inner diameter decreases from top to bottom; both sides of the screening frame (3) are fixed with fixing blocks (32) that contact the inner wall of the vertical cylinder (2), and the vertical cylinder (2) is threadedly connected to the fixing blocks (32) by screws.
5. The tea sorting device according to claim 1, characterized in that: The telescopic end of the electric telescopic rod (51) is fixed with a T-shaped fixing rod (52), which is connected to the inner wall of the uppermost annular plate (5). A vertical rod (53) is fixed between every two adjacent annular plates (5). The distance from the top to the bottom of a set of annular plates (5) increases from top to bottom.
6. The tea sorting device according to claim 1, characterized in that: The top of the vertical cylinder (2) is threadedly connected to a cover plate (21), and a feed hopper (22) is connected to the cover plate (21).