Tea leaf winnower facilitating feeding
By employing a U-shaped plate conveyor and an inclined feeding plate structure in the tea air separator, along with a feeding rod and torsion spring drive, the problem of poor airflow contact caused by concentrated tea falling is solved, achieving uniform dispersion and efficient screening of tea.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI LINGYUN YIJIAN TEA CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-14
AI Technical Summary
In existing tea air separators, the tea leaves fall in a concentrated manner at the hopper, resulting in poor airflow contact and affecting the screening effect.
A tea leaf air separator with easy feeding mechanism was designed. It adopts a U-shaped plate conveyor and an inclined feeding plate structure, combined with a feeding rod and torsion spring drive to achieve uniform dispersion of tea leaves, and enhances the contact between airflow and tea leaves through a wind mechanism.
This improves the sorting accuracy of tea leaves, ensuring that the tea leaves enter the air separation mechanism in a loose state, enhancing the contact effect between the airflow and the tea leaves, and improving the screening effect.
Smart Images
Figure CN224486783U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of tea production and processing, and specifically relates to a tea air separator that is easy to feed. Background Technology
[0002] Tea leaves, commonly known as tea, generally include the leaves and buds of the tea plant. Other names include cha, jia, ming, and chuan. Tea contains catechins, cholesterol, caffeine, inositol, folic acid, and pantothenic acid, all of which are beneficial to health. Tea beverages are one of the world's three major beverages.
[0003] In tea production and processing, the tea leaves are sieved based on their weight, which is done using an air separator. An air separator is a mechanical device that uses airflow to separate materials based on differences in physical properties such as density and particle size. It is widely used in industries such as waste treatment, mining, and pharmaceuticals. The air separator separates light and heavy components in a mixture of materials through airflow. Its core principle is based on aerodynamics, using the difference in suspension velocity of materials in the airflow to achieve efficient separation.
[0004] When using an air separator to screen tea leaves, a hoist is first used to feed the tea leaves into the hopper of the air separator. The hopper then feeds the material into the air outlet of the air separator, where the airflow separates tea leaves of different weights, thus achieving tea leaf screening. However, most existing hoppers are simple conical shells. When the tea leaves fall from the narrow opening of the hopper to the air outlet, they tend to be too close together, resulting in insufficient contact between some tea leaves and the airflow. Consequently, some tea leaves tend to fall almost vertically onto the bottom of the air separator shell, affecting the tea leaf screening effect. Utility Model Content
[0005] The purpose of this invention is to provide a tea air separator that is easy to feed, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A tea leaf air separator that is easy to load includes,
[0008] The air separation mechanism includes a support frame, a material drop box at the top center of the support frame, a connecting box at one end of the material drop box, a discharge box at the other end of the connecting box, several spaced discharge ports at the bottom of the discharge box along its length, a discharge port at the bottom of the discharge box away from the connecting box, a wind-powered mechanism for blowing air into the material drop box at the other end of the material drop box, and a conical funnel at the top of the material drop box with its wide opening facing upwards.
[0009] The feeding mechanism includes a U-shaped plate fixed to a support frame. The U-shaped plate is positioned above a conical funnel with its opening facing the funnel. A conveying device for linearly conveying tea leaves is located on the inner bottom of the U-shaped plate, with its end corresponding to the top port of the conical funnel. A first unloading plate is inclinedly positioned above the other end of the U-shaped plate, with its top projection outside the U-shaped plate. A connecting seat is installed at the bottom of the upper end of the first unloading plate, with rotating shafts rotatably mounted at both ends of the bottom of the connecting seat. The other end of each rotating shaft is mounted on a first fixed seat. The fixed seat is fixed to the U-shaped plate, and a torsion spring is sleeved on the rotating shaft. One end of the torsion spring is fixed to the first fixed seat, and the other end of the torsion spring is fixed to the connecting seat. A toggle plate is connected to the bottom of the connecting seat. The toggle plate is arranged in the radial direction of the rotating shaft. A cam is provided below one side of the toggle plate. One end of the cam corresponds to the side of the toggle plate. A drive shaft is coaxially installed on both sides of the other end of the cam. The other end of the drive shaft is rotatably installed on the second fixed seat. The second fixed seat is fixed to the U-shaped plate, and a third drive motor is connected to one of the drive shafts through a transmission mechanism. The third drive motor is fixed to the U-shaped plate through a bracket.
[0010] As a preferred embodiment of this utility model, a control box is provided on one side of the support frame, and a controller is provided inside the control box. The controller is connected to the conveying device and the third drive motor respectively through wires.
[0011] As a preferred embodiment of this utility model, the wind power mechanism includes a cylinder, which is fixed on the material box and communicates with the material box. A partition net is detachably installed in the cylinder near the material box. A first connecting shaft is provided inside the cylinder. A fan blade is installed on one end of the first connecting shaft, and the other end of the first connecting shaft passes through the cylinder and is connected to a first drive motor. The first drive motor is fixed on the cylinder and is connected to a controller through a wire.
[0012] As a preferred embodiment of this utility model, a second connecting shaft is provided above one end of the conveying device near the conical funnel. The end of the second connecting shaft is rotatably connected to the inner wall of the U-shaped plate. A second drive motor is installed on one end of the second connecting shaft. The second drive motor is fixed to the U-shaped plate by a bracket and is connected to the controller by a wire. A plurality of spaced material feeding rods are installed on the second connecting shaft.
[0013] As a preferred embodiment of this utility model, a first limiting plate is vertically installed on both sides of the top of the first feeding plate.
[0014] As a preferred embodiment of this utility model, a second feeding plate is provided above the first feeding plate at an incline. The second feeding plate is fixed to the first feeding plate by an elastic arc-shaped rubber plate. Second limiting plates are vertically installed on both sides of the top of the second feeding plate. The outer side of the second limiting plate is fixed to the U-shaped plate by a connecting frame.
[0015] As a preferred embodiment of this utility model, the transmission mechanism includes a first sprocket, which is coaxially mounted on the end of one of the transmission shafts, and a second sprocket is connected to the third drive motor via a drive shaft, and the second sprocket is connected to the first sprocket via a chain.
[0016] As a preferred embodiment of this utility model, the frontal projection of the connecting box is an isosceles trapezoid, and the narrow opening of the connecting box is connected to the discharge box, while the wide opening of the connecting box is connected to the drop box.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. Through the reciprocating deflection of the first feeding plate in the feeding mechanism, the tea leaves can be evenly distributed on the conveying device, avoiding the accumulation of tea leaves. In conjunction with the rotation of the feeding rod, the tea leaves are further dispersed, ensuring that the tea leaves enter the air separation mechanism in a loose state, enhancing the contact effect between the airflow and the tea leaves, and improving the sorting accuracy.
[0019] 2. By cooperating with the second feeding plate and the elastic arc-shaped rubber plate, the feeding position of the first feeding plate is fixed, while also accommodating the dynamic deflection of the first feeding plate, ensuring continuous feeding. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;
[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;
[0023] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0024] Figure 4 This is a schematic diagram of the connector structure of this utility model;
[0025] Figure 5This is a schematic diagram of the structure above the first feeding plate of this utility model.
[0026] In the picture:
[0027] 1. Support frame; 2. Feed box; 3. Connecting box; 4. Discharge box; 5. Discharge port; 6. Discharge outlet; 7. Cylinder; 8. Partition net; 9. Fan blade; 10. First connecting shaft; 11. First drive motor; 12. Conical funnel; 13. U-shaped plate; 14. Conveying device; 15. Second connecting shaft; 16. Feeding rod; 17. Second drive motor; 18. First feeding plate; 19. First limiting plate; 20. Second feeding plate; 21. Second limiting plate; 22. Arc-shaped rubber plate; 23. Connecting frame; 24. Connecting seat; 25. Rotating shaft; 26. First fixed seat; 27. Torsion spring; 28. Actuating plate; 29. Cam; 30. Transmission shaft; 31. Second fixed seat; 32. First sprocket; 33. Second sprocket; 34. Drive shaft; 35. Third drive motor; 36. Control box. Detailed Implementation
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0031] Example 1
[0032] Reference Figure 1-5 This is the first embodiment of the present invention, which provides a tea leaf air separator that is easy to load, comprising:
[0033] Wind separation institutions, such as Figure 1 and Figure 2As shown, the air separation mechanism includes a support frame 1, a material drop box 2 is provided at the top center of the support frame 1, a connecting box 3 is provided at one end of the material drop box 2, and a discharge box 4 is connected to the other end of the connecting box 3. The frontal projection of the connecting box 3 is an isosceles trapezoid, and the narrow opening of the connecting box 3 is connected to the discharge box 4, while the wide opening of the connecting box 3 is connected to the material drop box 2. This allows the air to be compressed when it enters the discharge box 4 from the material drop box 2, thereby improving the effect of the airflow.
[0034] like Figure 3 As shown, several outlets 5 are spaced apart at the bottom of the discharge box 4 along its length. A discharge port 6 is provided at the bottom of the discharge box 4 away from the connecting box 3. A wind-powered mechanism for blowing air into the discharge box 2 is provided at the other end of the discharge box 2. A conical funnel 12 is provided at the top of the discharge box 2, with its wide opening facing upwards. In use, tea leaves can fall into the discharge box 2 from the conical funnel 12 and then be blown into the discharge box 4 by the wind-powered mechanism. Due to the different effects of the wind force on different weights of tea leaves, tea leaves of different weights can be dispersed to different outlets 5. In actual use, to facilitate the discharge of tea leaves from the outlets 5 in the discharge box 4, the end of the discharge box 4 away from the connecting box 3 is tilted downwards, and the end of the outlet 5 corresponds to the side wall of the discharge box 4, ensuring that the tea leaves are fully discharged.
[0035] Among them, such as Figure 3 As shown, the wind power mechanism includes a cylinder 7, which is fixed on the material box 2 and is connected to the material box 2. A partition net 8 is detachably installed in the cylinder 7 near the material box 2 to prevent tea leaves and other items from falling into the cylinder 7. A first connecting shaft 10 is provided in the cylinder 7. A fan blade 9 is installed on one end of the first connecting shaft 10, and the other end of the first connecting shaft 10 passes through the cylinder 7 and is connected to a first drive motor 11. The first drive motor 11 is fixed on the cylinder 7 and provides power for the rotation of the fan blade 9, thereby blowing airflow towards the connecting box 3 in the material box 2, allowing the tea leaves to move into the discharge box 4 with the airflow. In actual use, the fan blade 9 is a worm gear fan blade.
[0036] Feeding mechanism, such as Figure 1 and Figure 5 As shown, the feeding mechanism includes a U-shaped plate 13, which is fixed to the support frame 1. The U-shaped plate 13 is located above the conical funnel 12 and its opening faces the conical funnel 12. A conveying device 14 for linearly conveying tea leaves is provided on the inner bottom of the U-shaped plate 13. The end of the conveying device 14 corresponds to the top port of the conical funnel 12. In actual use, the conveying device 14 is a conveyor belt conveying device to convey tea leaves from the end away from the conical funnel 12 into the conical funnel 12.
[0037] like Figure 2 and Figure 4 As shown, a first feeding plate 18 is inclinedly arranged above the other end of the U-shaped plate 13. The top of the first feeding plate 18 is projected outside the U-shaped plate 13. A connecting seat 24 is installed at the bottom of the upper end of the first feeding plate 18. Rotating shafts 25 are rotatably installed at both ends of the bottom of the connecting seat 24. The other end of the rotating shaft 25 is installed on a first fixed seat 26, which is fixed to the U-shaped plate 13. A torsion spring 27 is sleeved on the rotating shaft 25. One end of the torsion spring 27 is fixed to the first fixed seat 26, and the other end is fixed to the connecting seat 24. A toggle plate 28 is connected to the bottom of the connecting seat 24. The toggle plate 28 is arranged radially along the rotating shaft 25. A cam 29 is provided below one side of the toggle plate 28. One end of the cam 29 corresponds to the side of the toggle plate 28. Transmission plates are coaxially installed on both sides of the other end of the cam 29. The other end of the drive shaft 30 is rotatably mounted on the second fixed seat 31. The second fixed seat 31 is fixed to the U-shaped plate 13, and a third drive motor 35 is connected to one of the drive shafts 30 through a transmission mechanism. The third drive motor 35 is fixed to the U-shaped plate 13 through a bracket. Under the action of the third drive motor 35, the cam 29 continuously pushes the actuating plate 28, so that the first feeding plate 18 can rotate around the axis 25. Due to the intermittent action of the cam 29 on the actuating plate 28, and the elasticity of the torsion spring 27 to reset the first feeding plate 18, the first feeding plate 18 can rotate back and forth around the axis 25 when the third drive motor 35 is running. That is, under frontal projection, the bottom of the first feeding plate 18 can move back and forth in a straight line above the conveying device 14.
[0038] The transmission mechanism includes a first sprocket 32, which is coaxially mounted on the end of one of the transmission shafts 30. A second sprocket 33 is connected to the third drive motor 35 via a drive shaft 34. The second sprocket 33 is connected to the first sprocket 32 via a chain. The third drive motor 35 can be set against the U-shaped plate 13 to ensure the normal operation of the cam 29 while reducing the space occupied by the outer part of the tea air separator and preventing accidental activation.
[0039] Specifically, when tea leaves need to be sieved, a hoist can be used to send the sieved tea leaves to the first discharge plate 18. To prevent the first discharge plate 18 from deflecting and affecting the process of the tea leaves falling from the hoist onto the first discharge plate 18, a second discharge plate 20 is inclined above the first discharge plate 18. The second discharge plate 20 is fixed to the first discharge plate 18 by a flexible arc-shaped rubber plate 22. Second limiting plates 21 are vertically installed on both sides of the top of the second discharge plate 20. The outer side of the second limiting plate 21 is connected to the first discharge plate 18 by a connecting frame 23. The U-shaped plate 13 is fixed, and the second feeding plate 20 is fixed to receive the tea leaves falling from the elevator. The elastic structure of the arc-shaped rubber plate 22 will not affect the rotation of the first feeding plate 18, allowing the tea leaves to fall fully from the elevator onto the first feeding plate 18. Then, with the reciprocating deflection of the first feeding plate 18, the tea leaves can be spread evenly on the conveying device 14. As the conveying device 14 conveys, the tea leaves can fall into the feeding box 2 in a dispersed manner to be acted upon by the airflow, avoiding the situation of the tea leaves being too concentrated in the feeding and ensuring the subsequent screening effect of the tea leaves.
[0040] Furthermore, first limiting plates 19 are vertically installed on both sides of the top of the first feeding plate 18. Together with the setting of the second limiting plate 21, they limit the tea leaves sliding on the feeding plate and prevent the tea leaves from falling off the side of the feeding plate.
[0041] It should be noted that, as Figure 1 and Figure 5 As shown, a second connecting shaft 15 is provided above one end of the conveying device 14 near the conical funnel 12. The end of the second connecting shaft 15 is rotatably connected to the inner wall of the U-shaped plate 13. A second drive motor 17 is installed on one end of the second connecting shaft 15. The second drive motor 17 is fixed to the U-shaped plate 13 through a bracket. Multiple spaced material-pulling rods 16 are installed on the second connecting shaft 15. With the rotation of the second connecting shaft 15, the material-pulling rods 16 can rotate above the conveying device 14, thereby pulsating the tea leaves falling on the conveying device 14, allowing the tea leaves to be spread more evenly on the conveying device 14, and further improving the dispersion of the tea leaves during air separation feeding.
[0042] It should be further explained that a control box 36 is provided on one side of the support frame 1. The control box 36 contains a controller, which is connected to the conveying device 14, the third drive motor 35, the second drive motor 17, and the first drive motor 11 via wires. In actual use, the controller is one of a PLC logic controller, a control host, or a control motherboard. A touch screen display is also provided on the outer wall of the control box 36. The touch screen display is connected to the controller via wires, allowing the operator to control the tea leaf air separator through the touch screen display, such as the rotation speed of the fan blade 9 and the reciprocating frequency of the first feeding plate 18.
[0043] Furthermore, to provide a concise description of exemplary embodiments, not all features of the actual embodiments (i.e., those features not related to the currently considered best mode for carrying out the present invention, or those features not related to implementing the present invention) may be omitted. It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and not intended to limit it. Although the present invention 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 the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A tea leaf air separator that facilitates feeding, characterized in that: include, The air separation mechanism includes a support frame (1), a material drop box (2) is provided at the top center of the support frame (1), a connecting box (3) is provided at one end of the material drop box (2), and a discharge box (4) is connected to the other end of the connecting box (3). Several discharge ports (5) are arranged at intervals along the length of the discharge box (4) at the bottom. A discharge port (6) is provided at the bottom of the end of the discharge box (4) away from the connecting box (3). A wind mechanism for blowing air into the material drop box (2) is provided at the other end of the material drop box (2). A conical funnel (12) is provided at the top of the material drop box (2), with the wide opening of the conical funnel (12) facing upward. The feeding mechanism includes a U-shaped plate (13), which is fixed to the support frame (1). The U-shaped plate (13) is located above the conical funnel (12) and its opening faces the conical funnel (12). A conveying device (14) for linearly conveying tea leaves is provided on the inner bottom of the U-shaped plate (13). The end of the conveying device (14) corresponds to the top port of the conical funnel (12). A first feeding plate (18) is inclinedly provided above the other end of the U-shaped plate (13). The top projection of the first feeding plate (18) is located outside the U-shaped plate (13). A connecting seat (24) is installed at the bottom of the upper end of the first feeding plate (18). Rotating shafts (25) are rotatably installed at both ends of the bottom of the connecting seat (24). The other end of the rotating shaft (25) is installed on a first fixed seat (26). The first fixed seat (26) and the U-shaped plate (13) are connected. The rotating shaft (25) is fixed, and a torsion spring (27) is sleeved on it. One end of the torsion spring (27) is fixed on the first fixed seat (26), and the other end of the torsion spring (27) is fixed on the connecting seat (24). The bottom of the connecting seat (24) is connected to a toggle plate (28). The toggle plate (28) is arranged in the radial direction of the rotating shaft (25). A cam (29) is provided below one side of the toggle plate (28). One end of the cam (29) corresponds to the side of the toggle plate (28). The other end of the cam (29) is coaxially mounted with a transmission shaft (30). The other end of the transmission shaft (30) is rotatably mounted on a second fixed seat (31). The second fixed seat (31) is fixed to the U-shaped plate (13). A third drive motor (35) is connected to one of the transmission shafts (30) through a transmission mechanism. The third drive motor (35) is fixed to the U-shaped plate (13) through a bracket.
2. The tea leaf air separator with easy feeding according to claim 1, characterized in that: A control box (36) is provided on one side of the support frame (1). A controller is provided inside the control box (36). The controller is connected to the conveying device (14) and the third drive motor (35) respectively through wires.
3. A tea leaf air separator for easy feeding according to claim 2, characterized in that: The wind power mechanism includes a cylinder (7), which is fixed on the material box (2) and is connected to the material box (2). A partition net (8) is detachably installed in one end of the cylinder (7) near the material box (2). A first connecting shaft (10) is provided in the cylinder (7). A fan blade (9) is installed on one end of the first connecting shaft (10), and the other end of the first connecting shaft (10) passes through the cylinder (7) and is connected to a first drive motor (11). The first drive motor (11) is fixed on the cylinder (7) and is connected to the controller through a wire.
4. A tea leaf air separator for easy feeding according to claim 2, characterized in that: The conveying device (14) has a second connecting shaft (15) above one end near the conical funnel (12). The end of the second connecting shaft (15) is rotatably connected to the inner wall of the U-shaped plate (13). A second drive motor (17) is installed on one end of the second connecting shaft (15). The second drive motor (17) is fixed to the U-shaped plate (13) by a bracket. The second drive motor (17) is connected to the controller by a wire. Multiple spaced material feeding rods (16) are installed on the second connecting shaft (15).
5. A tea leaf air separator for easy feeding according to claim 1, characterized in that: The first limiting plate (19) is vertically installed on both sides of the top of the first feeding plate (18).
6. A tea leaf air separator for easy feeding according to claim 1, characterized in that: A second feeding plate (20) is inclined above the first feeding plate (18). The second feeding plate (20) is fixed to the first feeding plate (18) by an elastic arc-shaped rubber plate (22). A second limiting plate (21) is vertically installed on both sides of the top of the second feeding plate (20). The outer side of the second limiting plate (21) is fixed to the U-shaped plate (13) by a connecting frame (23).
7. A tea leaf air separator for easy feeding according to claim 1, characterized in that: The driving mechanism includes a first sprocket (32), which is coaxially mounted on the end of one of the drive shafts (30), and a second sprocket (33) is connected to the third drive motor (35) via a drive shaft (34). The second sprocket (33) is connected to the first sprocket (32) via a chain.
8. A tea leaf air separator for easy feeding according to claim 1, characterized in that: The frontal projection of the connecting box (3) is an isosceles trapezoid, and the narrow opening of the connecting box (3) is connected to the discharge box (4), while the wide opening of the connecting box (3) is connected to the dropping box (2).