Tea leaf sorting and impurity removing and sorting device
By using the sliding motion of the guide column head and the guide frame in conjunction with spring vibration, along with a vibration motor and a fan, the problem of incomplete impurity removal caused by tea leaf aggregation is solved, achieving effective separation of tea leaves and impurities and improving the purity of the tea.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGDE ANJI TEA IND CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
AI Technical Summary
In existing tea air separation and impurity removal equipment, tea leaves tend to clump together, making it difficult for airflow to penetrate, resulting in impurities mixed in the tea leaves not being effectively separated and the impurity removal effect being poor.
By sliding the guide column head and guide frame together, the elastic force of the spring is used to vibrate the guide trough. Combined with the vibration motor and fan, the tea leaves are slowly discharged and the air force is evenly distributed. The filter screen is used to separate the tea leaves and impurities.
This improves the removal of impurities from tea leaves, ensuring that broken leaves and stems are separated into a dustproof bag, while whole tea leaves are discharged through the filter, thus enhancing the purity of the tea.
Smart Images

Figure CN224405761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tea processing equipment, and more specifically, to a tea sorting and impurity removal device. Background Technology
[0002] Sorting is a core process in the tea refining industry, primarily responsible for quality control by removing impurities from the tea leaves. This process includes three technical systems: machine sorting, electric sorting, and manual sorting. Machine sorting removes tea stems through vibration sorting using a stepped stem-removing machine; electric sorting uses electrostatic adsorption to remove tea pieces and sand particles; and manual sorting serves as a supplementary process to the first two, focusing on high-grade teas. These three methods need to be combined synergistically according to the characteristics of the raw materials, and the setting of their operating parameters directly affects the purity index of the finished tea.
[0003] In existing tea air separation and impurity removal equipment, tea leaves tend to clump together during use, preventing airflow from penetrating the leaves and thus hindering the separation of impurities. Consequently, the tea impurity removal effect is poor. To improve the tea impurity removal effect, we propose a tea sorting and impurity removal device to solve the above-mentioned problems. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a tea sorting and impurity removal device. Under the elastic force of the spring, the guide column head and the guide frame slide up and down, thereby causing the guide trough to vibrate. This causes the tea in the storage box to slowly discharge through the second discharge port under the action of vibration, preventing the tea from gathering together. Then, the tea falls into the impurity removal box through the inlet, thus improving the effect of tea air separation and impurity removal.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A tea sorting and impurity removal device includes an impurity removal box with both ends having a through-type structure, an inlet at the top of the impurity removal box, and a first outlet at the bottom of the impurity removal box corresponding to the inlet. A guide trough is installed on one side of the inlet above the impurity removal box. A storage box is fixedly connected to the part of the guide trough away from the inlet. A vibration motor is installed on the side wall of the storage box via a bracket. A second outlet is opened at the root of the side wall of the storage box away from the vibration motor.
[0009] The sidewalls of the material guide trough are symmetrically welded with guide columns, and the outer sidewalls of the impurity removal box are welded with guide frames that are slidably connected to the guide columns. Springs are symmetrically installed between the material guide trough and the impurity removal box.
[0010] A filter screen is installed on the inside of the impurity removal box near the feed inlet and the first discharge outlet;
[0011] The front end of the impurity removal box is connected to an air hood, and a fan is installed at the end of the air hood.
[0012] The end of the cleaning box is detachably connected to a dustproof bag.
[0013] Furthermore, the edge of the feed inlet is provided with a barrier that is fixedly connected to the impurity removal box.
[0014] Furthermore, the port portion of the dustproof bag is compositely connected with an assembly frame, and the edge portion of the assembly frame is symmetrically and integrally formed with connecting ears.
[0015] Furthermore, the impurity removal box is fixedly connected to the mounting ear at the location corresponding to the connecting ear.
[0016] Furthermore, a sealing ring is installed at the part of the assembly frame that abuts against the impurity removal box.
[0017] Furthermore, one end of the spring is connected to the guide trough, and the other end of the spring is connected to the impurity removal box.
[0018] Furthermore, the inner bottom wall of the feed trough is integrally formed with a guide slope.
[0019] 3. Beneficial effects
[0020] Compared with existing technologies, the advantages of this utility model are:
[0021] (1) In this scheme, after the tea leaves to be sorted are placed in the storage box, the vibration motor and the fan are turned on simultaneously. Under the elastic force of the spring, the guide column head and the guide frame slide up and down, thereby causing the guide trough to vibrate. Then, the tea leaves in the storage box are slowly discharged through the second discharge port under the action of vibration, avoiding the tea leaves from gathering together. Then, they fall into the impurity removal box through the inlet. The air hood makes the wind blown by the fan evenly distributed. When the falling tea leaves pass through the filter screen, the broken leaves and stems pass through the filter screen under the action of wind, while the whole tea leaves are intercepted by the filter screen and discharged through the first discharge port under the action of gravity. The broken leaves and stems are blown into the dustproof bag under the action of wind, which improves the impurity removal effect of the tea leaves.
[0022] (2) In this scheme, after the assembly frame and the end of the cleaning box are connected, the connecting ear and the mounting ear are aligned. Then, bolts are passed through the connecting ear and the mounting ear, and nuts are used to lock them, which makes it easy to disassemble the dust bag and thus facilitates the centralized treatment of the collected broken leaves and leaf stems in the dust bag. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a side view of the impurity removal box of this utility model;
[0025] Figure 3 This is a cross-sectional schematic diagram of the AA part of the impurity removal box of this utility model;
[0026] Figure 4 This is a schematic diagram of the assembly frame structure of this utility model.
[0027] Explanation of the labels in the diagram:
[0028] 1. Impurity removal box; 2. Feed inlet; 3. First discharge outlet; 4. Storage box; 5. Vibration motor; 6. Second discharge outlet; 7. Guide column head; 8. Guide frame; 9. Spring; 10. Air cover; 11. Fan; 12. Filter screen; 13. Dustproof bag; 14. Assembly frame; 15. Connecting ear; 16. Mounting ear; 17. Guide chute. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0030] Example:
[0031] Please see Figure 1-4 A tea sorting and impurity removal device includes an impurity removal box 1 with both ends having a through structure, an inlet 2 opened at the top of the impurity removal box 1, and a first outlet 3 opened at the bottom of the impurity removal box 1 and corresponding to the inlet 2. A guide trough 17 is installed on one side of the inlet 2 and located above the impurity removal box 1. A storage box 4 is fixedly connected to the part of the guide trough 17 away from the inlet 2. A vibration motor 5 is installed on the side wall of the storage box 4 through a bracket. A second outlet 6 is opened at the root of the side wall of the storage box 4 away from the vibration motor 5.
[0032] The sidewalls of the feed trough 17 are symmetrically welded with guide columns 7, and the outer sidewalls of the impurity removal box 1 are welded with guide frames 8 that are slidably connected to the guide columns 7. Springs 9 are symmetrically installed between the feed trough 17 and the impurity removal box 1.
[0033] A filter screen 12 is installed on the inside of the impurity removal box 1 near the feed inlet 2 and the first discharge outlet 3;
[0034] The front end of the impurity removal box 1 is connected to an air hood 10, and a fan 11 is installed at the end of the air hood 10.
[0035] A dustproof bag 13 is detachably connected to the end of the waste removal box 1;
[0036] It should be noted that when using this tea sorting and impurity removal device, the tea to be sorted is first placed in the storage box 4, and then the vibration motor 5 and the fan 11 are turned on simultaneously. Under the elastic force of the spring 9, the guide column head 7 slides up and down in conjunction with the guide frame 8, thereby causing the guide trough 17 to vibrate. This causes the tea in the storage box 4 to slowly discharge through the second discharge port 6 under the action of vibration, avoiding the tea from gathering together. Then, it falls into the impurity removal box 1 through the feed port 2. The air hood 10 makes the air force blown by the fan 11 evenly distributed. When the falling tea passes through the filter screen 12, broken leaves and stems pass through the filter screen 12 under the action of air force, while whole tea leaves are intercepted by the filter screen 12 and discharged through the first discharge port 3 under the action of gravity. Broken leaves and stems are blown into the dustproof bag 13 under the action of air force, which improves the impurity removal effect of the tea.
[0037] like Figure 1 As shown, the edge of the feed inlet 2 is provided with a barrier that is fixedly connected to the impurity removal box 1;
[0038] It should be noted that by setting up a barrier at the edge of the feed inlet 2, the tea leaves can be effectively prevented from scattering around the feed inlet 2 during the feeding process.
[0039] like Figure 1 , Figure 4 As shown, the port of the dustproof bag 13 is connected to the assembly frame 14, and the edge of the assembly frame 14 is integrally formed with connecting ears 15 symmetrically. The cleaning box 1 is fixedly connected with the mounting ear 16 corresponding to the connecting ear 15.
[0040] It should be noted that after the assembly frame 14 abuts against the end of the cleaning box 1, the connecting ear 15 and the mounting ear 16 correspond to each other. Then, bolts are passed through the connecting ear 15 and the mounting ear 16, and nuts are used to lock them, which facilitates the disassembly of the dustproof bag 13, thereby facilitating the centralized treatment of the collected broken leaves and leaf stems in the dustproof bag 13.
[0041] like Figure 1 , Figure 4 As shown, a sealing ring is installed at the part where the assembly frame 14 abuts against the impurity removal box 1;
[0042] It should be noted that the gap between the assembly frame 14 and the dust removal box 1 is filled with a sealing rubber ring to prevent dust from being blown out.
[0043] like Figure 3 As shown, one end of the spring 9 is connected to the guide trough 17, and the other end of the spring 9 is connected to the impurity removal box 1. The inner bottom wall of the guide trough 17 is integrally formed with a guide slope.
[0044] It should be noted that, under the elastic force of the spring 9, the guide column head 7 slides up and down in conjunction with the guide frame 8, thereby causing the guide trough 17 to vibrate. This causes the tea leaves in the storage box 4 to slowly discharge through the second discharge port 6 under the action of vibration, preventing the tea leaves from gathering together. The guide slope is used to make the tea leaves slowly move towards the feed port 2.
[0045] In use: First, place the tea leaves to be sorted into the storage box 4, then simultaneously turn on the vibration motor 5 and the fan 11. Under the elastic force of the spring 9, the guide column head 7 slides up and down in conjunction with the guide frame 8, thereby causing the guide trough 17 to vibrate. This causes the tea leaves in the storage box 4 to slowly discharge through the second discharge port 6 under the action of vibration, preventing the tea leaves from gathering together. Then, the tea leaves fall into the impurity removal box 1 through the feed port 2. The air hood 10 makes the air force blown by the fan 11 evenly distributed. When the falling tea leaves pass through the filter screen 12, broken leaves and stems pass through the filter screen 12 under the action of the air force, while whole tea leaves are intercepted by the filter screen 12 and discharged through the first discharge port 3 under the action of gravity. Broken leaves and stems are blown into the dustproof bag 13 under the action of the air force.
[0046] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A tea sorting and impurity removal device, comprising an impurity removal box (1) with both ends having a through-type structure, an inlet (2) opened at the top of the impurity removal box (1), and a first outlet (3) opened at the bottom of the impurity removal box (1) and corresponding to the inlet (2), characterized in that: A guide trough (17) is installed on one side of the feed inlet (2) above the impurity removal box (1). A storage box (4) is fixedly connected to the part of the guide trough (17) away from the feed inlet (2). A vibration motor (5) is installed on the side wall of the storage box (4) through a bracket. A second discharge port (6) is opened at the root of the side wall of the storage box (4) away from the vibration motor (5). The sidewall of the material guide trough (17) is symmetrically welded with guide column heads (7), and the outer sidewall of the impurity removal box (1) is welded with a guide frame (8) that is slidably connected to the guide column heads (7). Springs (9) are symmetrically installed between the material guide trough (17) and the impurity removal box (1). A filter screen (12) is installed on the inner side of the impurity removal box (1) near the feed inlet (2) and the first discharge outlet (3); The front end of the impurity removal box (1) is connected to an air hood (10), and a fan (11) is installed at the end of the air hood (10). The dust removal box (1) is detachably connected to a dustproof bag (13) at its end.
2. The tea sorting and impurity removal device according to claim 1, characterized in that: The edge of the feed inlet (2) is provided with a barrier that is fixedly connected to the impurity removal box (1).
3. The tea sorting and impurity removal device according to claim 1, characterized in that: The dustproof bag (13) has an assembly frame (14) connected to its port, and the edge of the assembly frame (14) has symmetrically integrally formed connecting ears (15).
4. The tea sorting and impurity removal device according to claim 3, characterized in that: The cleaning box (1) is fixedly connected to the mounting ear (16) at the part corresponding to the connecting ear (15).
5. The tea sorting and impurity removal device according to claim 3, characterized in that: A sealing ring is installed at the part where the assembly frame (14) abuts against the impurity removal box (1).
6. The tea sorting and impurity removal device according to claim 1, characterized in that: One end of the spring (9) is connected to the guide trough (17), and the other end of the spring (9) is connected to the impurity removal box (1).
7. The tea sorting and impurity removal device according to claim 1, characterized in that: The inner bottom wall of the guide groove (17) is integrally formed with a guide slope.