Screening equipment for green tea pretreatment
By designing a rotating mechanism and a dust collector in the screening equipment, the problem of low efficiency in removing impurities from tea leaves was solved, and efficient tea pretreatment was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN QIPENG TEA CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-05-19
AI Technical Summary
Existing tea sieving equipment is inefficient and cannot effectively remove impurities from tea leaves harvested mechanically.
A screening device including a screening box, a rotating column, a grid plate, a chain conveyor, and a dust collector was designed. The rotating mechanism shakes the tea leaves and the dust collector removes impurities. The device is combined with a trapezoidal trough and a telescopic cylinder to facilitate feeding.
It improved the efficiency of tea sieving, reduced the workload of staff, and achieved efficient removal of impurities.
Smart Images
Figure CN224253514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea processing technology, specifically a screening device for green tea pretreatment. Background Technology
[0002] Currently, tea picking methods include manual and mechanical picking. Manually picked tea leaves are cleaner than mechanically picked tea leaves, while mechanically picked tea leaves carry more tea tree debris. Therefore, workers need to sieve the mechanically picked tea leaves to remove impurities. However, manual picking is very inefficient. Therefore, this application proposes a sieving device that can improve sieving efficiency. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a screening device for green tea pretreatment, which facilitates the screening out of impurities mixed in with tea leaves.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a screening device for green tea pretreatment, comprising a screening box with a feed inlet at the top, a rotating column horizontally arranged in the front-to-back direction in the screening box via a bearing seat, two sets of mesh plates on the rotating column, one end of the rotating column extending to the outside of the screening box and connected to a rotating mechanism, a discharge port on the left side of the screening box, a chain conveyor horizontally arranged in the screening box, one end of the chain conveyor extending to the outside of the screening box through the discharge port, and a dust collector at the bottom of the screening box.
[0005] Preferably, the included angle between the two grid plates is less than 10 degrees.
[0006] Preferably, a crossbar is connected to one end of the rotating column extending to the outside of the screening box, and a motor mounted on the screening box is provided above the crossbar, with a cam mounted on the motor that contacts the upper side of the crossbar.
[0007] Preferably, the bottom of the screening box is arc-shaped.
[0008] Preferably, the screening box is equipped with an opening and closing door.
[0009] This utility model provides a sieving device for green tea pretreatment, which has the following beneficial effects:
[0010] This screening equipment for green tea pretreatment reduces the burden on workers when feeding materials through the combination of trapezoidal troughs, telescopic cylinders, and support plates. The motor, cam, crossbar, and rotating column can shake the tea leaves falling on the grid plate, thereby dispersing the tea leaves and allowing impurities mixed in with the tea leaves to be filtered out, thus improving screening efficiency during use. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a frontal cross-sectional view of the present invention.
[0013] In the diagram: 1. Feed inlet; 2. Screening box; 3. Bearing seat; 4. Rotating column; 5. Mesh plate; 6. Discharge port; 7. Chain conveyor; 8. Dust collector; 9. Crossbar; 10. Motor; 11. Cam; 12. Opening and closing door; 13. Stop block; 14. Trapezoidal groove; 15. Telescopic cylinder; 16. Support plate. Detailed Implementation
[0014] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 2 As shown:
[0015] Example 1: A screening device for green tea pretreatment includes a screening box 2 with a feed inlet 1 at the top, through which the harvested tea leaves can be fed into the screening box 2 after being picked.
[0016] The screening box 2 is equipped with a horizontal rotating column 4 in the front-to-back direction via a bearing seat 3. Two sets of grid plates 5 are provided on the rotating column 4. Through the setting of the grid plates 5, the tea leaves can fall on the two grid plates 5 after entering the screening box 2 through the feed inlet 1.
[0017] One end of the rotating column 4 extends to the outside of the screening box 2 and is connected to a rotating mechanism;
[0018] The rotating mechanism can cause the grid plate 5 to shake up and down, thereby spreading the tea leaves on the grid plate 5.
[0019] A discharge port 6 is provided on the left side of the screening box 2. A chain conveyor 7 is horizontally arranged in the screening box 2. The loose tea leaves fall on the chain conveyor 7 and can be directly discharged from the screening box 2 through the discharge port 6. One end of the chain conveyor 7 extends to the outside of the screening box 2 through the discharge port 6.
[0020] A dust collector 8 is installed at the bottom of the screening box 2. The dust collector 8 can remove impurities mixed in with the tea leaves after the tea leaves have dispersed, thus completing the screening process.
[0021] Example 2: A screening device for green tea pretreatment, including a screening box 2 with a feed inlet 1 at the top, and the bottom of the screening box 2 is arc-shaped;
[0022] A trapezoidal groove 14 is provided above the screening box 2. A telescopic cylinder 15 is provided at the bottom of the trapezoidal groove 14. A support plate 16 is provided at the upper end of the telescopic cylinder 15. The packaging bag containing tea is placed on the support plate 16. The telescopic cylinder 15 drives the packaging bag to move to be level with the top of the feed inlet 1, so that the harvested tea can be put into the screening box 2 through the feed inlet 1.
[0023] The screening box 2 is equipped with a horizontal rotating column 4 in the front-to-back direction via a bearing seat 3. Two sets of grid plates 5 are provided on the rotating column 4. The included angle between the two grid plates 5 is less than 180 degrees, so as to gather the tea leaves as much as possible during the shaking process. Through the setting of the grid plates 5, the tea leaves can fall on the two grid plates 5 after entering the screening box 2 through the feed inlet 1.
[0024] One end of the rotating column 4 extends to the outside of the screening box 2 and is connected to a rotating mechanism;
[0025] A crossbar 9 is connected to one end of the rotating column 4 extending to the outside of the screening box 2. The lower side of the crossbar 9 contacts a stop block 13 fixed to the front side of the screening box 2. A motor 10 is installed on the screening box 2 above the crossbar 9. A cam 11 is installed on the motor 10 that contacts the upper side of the crossbar 9.
[0026] When the motor 10 drives the cam 11 to rotate, it can drive the rotating column 4 to rotate back and forth through the crossbar 9. The setting of the stop block 13 can prevent the tea leaves from being directly flipped over.
[0027] The rotating mechanism can cause the grid plate 5 to shake up and down, thereby spreading the tea leaves on the grid plate 5.
[0028] A discharge port 6 is provided on the left side of the screening box 2. A chain conveyor 7 is horizontally arranged in the screening box 2. The loose tea leaves fall on the chain conveyor 7 and can be directly discharged from the screening box 2 through the discharge port 6. One end of the chain conveyor 7 extends to the outside of the screening box 2 through the discharge port 6.
[0029] A dust collector 8 is installed at the bottom of the screening box 2. The dust collector 8 can remove impurities mixed in with the tea leaves after the tea leaves are dispersed, thereby completing the screening work.
[0030] The screening box 2 is equipped with an opening and closing door 12, which facilitates the cleaning of impurities in the screening box 2.
[0031] Working principle:
[0032] The tea bag is placed on the support plate 16. The telescopic cylinder 15 moves the bag to a position flush with the feed inlet. Then, the tea leaves are put into the screening box 2. The tea leaves fall onto the two grid plates 5. Through the cooperation of the motor 10, cam 11, rotating column 4 and grid plates 5, the tea leaves on the two grid plates 5 are shaken, thus spreading the tea leaves apart. This allows impurities in the tea leaves to be removed by the dust collector 8 through the chain conveyor 7, while the tea leaves are discharged from the discharge port 6 through the chain conveyor 7.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A screening apparatus for green tea pretreatment comprising a screening box (2) provided with a feed inlet (1) at the upper end, characterized in that: The screening box (2) is provided with a rotating column (4) that is horizontal in the front-to-back direction through a bearing seat (3). Two sets of grid plates (5) are provided on the rotating column (4). One end of the rotating column (4) extends to the outside of the screening box (2) and is connected to a rotating mechanism. A discharge port (6) is provided on the left side of the screening box (2). A chain conveyor (7) is provided in the screening box (2) that is horizontally arranged in the left-to-right direction. One end of the chain conveyor (7) extends to the outside of the screening box (2) through the discharge port (6). A dust collector (8) is provided at the bottom of the screening box (2).
2. A screening apparatus for green tea pretreatment according to claim 1, characterized in that: The included angle between the two grid plates (5) is less than 180 degrees.
3. A screening apparatus for green tea pretreatment according to claim 1, characterized in that: The rotating column (4) extends to one end of the screening box (2) and is connected to a crossbar (9). A motor (10) is installed on the screening box (2) above the crossbar (9). A cam (11) is installed on the motor (10) that contacts the upper side of the crossbar (9).
4. A screening apparatus for green tea pretreatment according to claim 1, characterized in that: The bottom of the screening box (2) is arc-shaped.
5. A screening apparatus for green tea pretreatment according to claim 1, characterized in that: The screening box (2) is equipped with an opening and closing door (12).