Tea screening device

Abstract

The utility model is suitable for the technical field of tea leaf screening devices, and provides a tea leaf screening device which comprises a U-shaped mounting frame, a plurality of mounting holes are formed in the surface of the mounting frame, a screening barrel is rotationally arranged on one side of the mounting frame, a feeding pipe is arranged at the top of the screening barrel, a discharging pipe is arranged at the bottom of the screening barrel, and the feeding pipe is connected with the discharging pipe. A screening mechanism is arranged in the screening barrel, the screening mechanism comprises a plurality of discharging pipes, the discharging pipes are arranged in the screening barrel, feeding ports are formed in the side walls of the discharging pipes, and the discharging pipes are arranged in a bent mode. According to the tea leaf screening device, tea leaves can be subjected to multi-stage screening by arranging the screening mechanism, so that the tea leaves with different sizes can be conveniently distinguished and conveyed to the outside of the device, meanwhile, the screening and conveying processes of the device are carried out in a closed environment, and thus external pollutants can be prevented from entering the device.

Description

Technical Field

[0001] This utility model relates to tea sieving devices, and more particularly to a tea sieving device. Background Technology

[0002] During tea processing, tea leaves are also graded according to their size. After drying, tea leaves often contain impurities, which need to be sifted out using a sieve.

[0003] However, sieves can only sift tea leaves layer by layer, and the manual sieving process affects the sieving speed, which cannot meet the sieving needs of large quantities of tea leaves. In traditional sieving devices, the tea leaves are sieving by rolling on the sieve due to gravity. However, the tea leaves cannot be completely sieving on the sieve, resulting in residual tea leaves that need to be sieving manually. Utility Model Content

[0004] This utility model provides a tea sieving device, which aims to solve the problem of a tea sieving device mentioned in the background art.

[0005] This utility model is implemented as follows: a tea sieving device includes an installation frame, which is U-shaped and has multiple installation holes on its surface. A sieving cylinder is rotatably mounted on one side of the installation frame. A feed pipe is provided at the top of the sieving cylinder, a discharge pipe is provided at the bottom of the sieving cylinder, and a sieving mechanism is provided inside the sieving cylinder.

[0006] The screening mechanism includes a discharge pipe, and the number of discharge pipes is set to multiple.

[0007] The discharge pipe is located inside the screening cylinder. An inlet is provided on the side wall of the discharge pipe. The discharge pipe is bent and its end penetrates the screening cylinder. The discharge pipe is fixedly connected to the screening cylinder. Two connecting rods are fixedly connected between the discharge pipe and the inner wall of the screening cylinder. A screening screen is rotatably connected to the outer circumference of the screening cylinder. The screening screen is funnel-shaped and rotatably connected to the inner wall of the screening cylinder. A driven gear ring is fixedly connected to the top of the screening screen. A driving gear is meshed with the top of the driven gear ring. A stepper motor is located on one side of the driving gear. The side wall of the stepper motor is fixedly connected to the outer wall of the screening cylinder. The output end of the stepper motor is fixedly connected to the driving gear.

[0008] The aperture size of the multiple screening screens decreases sequentially from top to bottom;

[0009] An angle adjustment mechanism is provided on one side of the screening cylinder, which is used to adjust the angle of the screening cylinder;

[0010] In the initial state, the screening cylinder is tilted. At this time, the feed inlet on the surface of the discharge pipe is located at the top of the screening screen that is rotatably connected to it. Then, by starting the stepper motor, the drive gear can be driven to rotate. At the same time, the drive gear will drive the funnel-shaped screening screen to rotate through the driven gear ring. By starting multiple stepper motors in the above manner, multiple funnel-shaped screening screens can be driven to rotate simultaneously. The aperture of the multiple funnel-shaped screening screens decreases from top to bottom.

[0011] Tea leaves can then be added to the top screen through the feed pipe. As the top screen rotates, the tea leaves slide on the inclined screen surface due to gravity, thus accelerating the passage of the tea leaves through the screen. The tea leaves passing through the top screen fall to the bottom screen surface for further sieving until excessively fine tea leaves pass through the bottom screen and are discharged through the discharge pipe at the bottom of the sieving cylinder. At this point, the tea leaves remaining on multiple screen surfaces are all larger than the screen openings, thus completing the multi-stage sieving of the tea leaves. Afterward, the sieving cylinder is adjusted to a vertical position by activating the angle adjustment mechanism. At this point, the tea leaves remaining on each screen surface slide towards the center of the funnel-shaped screen and, with the rotation of the screen, are driven through the feed port on the surface of the discharge pipe in the center of the screen into the discharge pipe, and then discharged through this discharge pipe, thus completing the discharge operation of tea leaves from multiple screen surfaces.

[0012] Preferably, the angle adjustment mechanism includes a first connector and a second connector. The side wall of the first connector is fixedly connected to the outer periphery of the screening cylinder, and the bottom of the second connector is fixedly connected to the mounting frame. An electric push rod is provided between the first connector and the second connector. The output end of the electric push rod is hinged to the first connector and the output end of the electric push rod is hinged to the second connector.

[0013] By activating the electric push rod, the screening cylinder can be rotated, thereby adjusting the screening cylinder to a vertical or inclined state.

[0014] Preferably, a protective shell is provided between the driven gear ring and the driving gear. The protective shell is annular, the bottom of the protective shell is in contact with the screening screen, and the side wall of the protective shell is fixedly connected to the inner wall of the screening cylinder.

[0015] By setting up a protective shell, the driven gear ring and the driving gear can be prevented from being directly exposed inside the sieving cylinder, thereby preventing the tea leaves from coming into contact with the driven gear ring and the driving gear, which could cause them to jam.

[0016] Preferably, the outer periphery of the screening cylinder is fixedly connected with reinforcing ribs, and the number of reinforcing ribs is set to multiple, and the multiple reinforcing ribs are evenly distributed;

[0017] By adding reinforcing ribs to the outer periphery of the screening cylinder, the structural strength of the screening cylinder can be increased, thereby preventing deformation of the screening cylinder during use and thus preventing the screening screen from rotating normally.

[0018] Preferably, a buffer pad is fixedly connected to the side wall of the mounting frame, and the buffer pad is made of rubber material;

[0019] By installing buffer pads on the side walls of the mounting frame, vibrations during device operation can be prevented from being directly transmitted to the mounting surface through the mounting frame.

[0020] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a tea sieving device.

[0021] By setting up a screening mechanism, tea leaves can be screened in multiple stages, making it easy to distinguish tea leaves of different sizes and transport them to the outside of the device. At the same time, the screening and conveying processes are carried out in a closed environment, which can prevent external contaminants from entering the device. Attached Figure Description

[0022] Figure 1 This is a first-view perspective perspective view of the present invention;

[0023] Figure 2 This is a second-view perspective perspective view of the present invention;

[0024] Figure 3 This is a cross-sectional view of the screening cylinder of this utility model;

[0025] Figure 4 This is a schematic diagram of the screening mesh structure of this utility model;

[0026] Figure 5 This utility model Figure 1 A schematic diagram of the structure of part A.

[0027] In the picture:

[0028] 1. Mounting frame; 11. Mounting hole; 12. Screening cylinder; 13. Feed pipe; 14. Discharge pipe;

[0029] 2. Screening mechanism; 21. Discharge pipe; 22. Feed inlet; 23. Connecting rod; 24. Screening screen; 25. Driven gear ring; 26. Drive gear; 27. Stepper motor;

[0030] 3. Angle adjustment mechanism; 31. First connecting piece; 32. Second connecting piece; 33. Electric push rod;

[0031] 4. Protective shell; 5. Reinforcing ribs; 6. Buffer pad. Detailed Implementation

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0033] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0034] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Please see Figure 1-5 This utility model provides a technical solution: a tea sieving device, including a mounting frame 1, the mounting frame 1 is U-shaped, a plurality of mounting holes 11 are opened on the surface of the mounting frame 1, a sieving cylinder 12 is rotatably arranged on one side of the mounting frame 1, a feed pipe 13 is opened at the top of the sieving cylinder 12, a discharge pipe 14 is provided at the bottom of the sieving cylinder 12, and a sieving mechanism 2 is provided inside the sieving cylinder 12.

[0038] The screening mechanism 2 includes a discharge pipe 21, and the number of discharge pipes 21 is set to multiple;

[0039] The discharge pipe 21 is located inside the screening cylinder 12. The side wall of the discharge pipe 21 has a feed inlet 22. The discharge pipe 21 is bent and its end passes through the screening cylinder 12. The discharge pipe 21 is fixedly connected to the screening cylinder 12. Two connecting rods 23 are fixedly connected between the discharge pipe 21 and the inner wall of the screening cylinder 12. A screening screen 24 is rotatably connected to the outer circumference of the screening cylinder 12. The screening screen 24 is funnel-shaped. The outer circumference of the screening screen 24 is rotatably connected to the inner wall of the screening cylinder 12. A driven gear ring 25 is fixedly connected to the top of the screening screen 24. A drive gear 26 is meshed with the top of the driven gear ring 25. A stepper motor 27 is provided on one side of the drive gear 26. The side wall of the stepper motor 27 is fixedly connected to the outer wall of the screening cylinder 12. The output end of the stepper motor 27 is fixedly connected to the drive gear 26.

[0040] The aperture size of the multiple screening screens 24 decreases from top to bottom;

[0041] An angle adjustment mechanism 3 is provided on one side of the screening cylinder 12. The angle adjustment mechanism 3 is used to adjust the angle of the screening cylinder 12.

[0042] Furthermore, the angle adjustment mechanism 3 includes a first connecting member 31 and a second connecting member 32. The side wall of the first connecting member 31 is fixedly connected to the outer periphery of the screening cylinder 12, and the bottom of the second connecting member 32 is fixedly connected to the mounting frame 1. An electric push rod 33 is provided between the first connecting member 31 and the second connecting member 32. The output end of the electric push rod 33 is hinged to the first connecting member 31, and the output end of the electric push rod 33 is hinged to the second connecting member 32.

[0043] Furthermore, a protective shell 4 is provided between the driven gear ring 25 and the driving gear 26. The protective shell 4 is annular, with its bottom fitting against the screening screen 24 and its sidewalls fixedly connected to the inner wall of the screening cylinder 12.

[0044] Furthermore, the outer periphery of the screening cylinder 12 is fixedly connected with reinforcing ribs 5, and the number of reinforcing ribs 5 is set to multiple, with the multiple reinforcing ribs 5 evenly distributed.

[0045] Furthermore, a buffer pad 6 is fixedly connected to the side wall of the mounting frame 1. The buffer pad 6 is made of rubber material.

[0046] Working principle and usage process of this utility model:

[0047] In the initial state, the screening cylinder 12 is tilted. At this time, the feed inlet 22 on the surface of the discharge pipe 14 is located above the screening screen 24 that is rotatably connected to it. Then, by starting the stepper motor 27, the drive gear 26 can be driven to rotate. At the same time, the drive gear 26 will drive the funnel-shaped screening screen 24 to rotate through the driven gear ring 25. By starting multiple stepper motors 27 in the above manner, multiple funnel-shaped screening screens 24 can be driven to rotate simultaneously. The aperture of the multiple funnel-shaped screening screens 24 decreases from top to bottom.

[0048] Then, tea leaves can be added to the top screen surface through the feed pipe 13. When the top screen rotates, the tea leaves will slide on the inclined screen surface due to gravity, thereby accelerating the speed at which the tea leaves pass through the screen. The tea leaves that pass through the top screen will fall to the bottom screen surface for further sieving until the tea leaves that are too fine pass through the bottom screen and are discharged through the discharge pipe 14 at the bottom of the sieving cylinder 12. At this time, the tea leaves remaining on the surfaces of multiple screens are larger than the screen holes of multiple screens, thus completing the multi-stage sieving of the tea leaves. After that, the electric push rod 33 can be activated to drive the sieving cylinder 12 to rotate, thereby adjusting the sieving cylinder 12 to a vertical state. At this time, the tea leaves remaining on the surfaces of each screen will slide towards the center of the funnel-shaped screen, and with the rotation of the screen, the tea leaves will enter the discharge pipe 21 through the feed port 22 on the surface of the discharge pipe 21 in the center of the screen, and be discharged through the discharge pipe 21, thus completing the discharge operation of the tea leaves on the surfaces of multiple screens.

Claims

1. A tea sieving device, comprising a mounting frame (1), characterized in that: The mounting frame (1) is U-shaped, and multiple mounting holes (11) are provided on the surface of the mounting frame (1). A screening cylinder (12) is rotatably provided on one side of the mounting frame (1). A feed pipe (13) is provided at the top of the screening cylinder (12). A discharge pipe (14) is provided at the bottom of the screening cylinder (12). A screening mechanism (2) is provided inside the screening cylinder (12). The screening mechanism (2) includes a discharge pipe (21), and the number of discharge pipes (21) is set to multiple; The discharge pipe (21) is located inside the screening cylinder (12). An inlet (22) is provided on the side wall of the discharge pipe (21). The discharge pipe (21) is bent, and its end penetrates the screening cylinder (12). The discharge pipe (21) is fixedly connected to the screening cylinder (12). Two connecting rods (23) are fixedly connected between the discharge pipe (21) and the inner wall of the screening cylinder (12). A screening screen (24) is rotatably connected to the outer circumference of the screening cylinder (12). The screen (24) is funnel-shaped. The outer periphery of the screen (24) is rotatably connected to the inner wall of the screen cylinder (12). A driven gear ring (25) is fixedly connected to the top of the screen (24). A drive gear (26) is meshed with the top of the driven gear ring (25). A stepper motor (27) is provided on one side of the drive gear (26). The side wall of the stepper motor (27) is fixedly connected to the outer wall of the screen cylinder (12). The output end of the stepper motor (27) is fixedly connected to the drive gear (26). The aperture size of the multiple screening screens (24) decreases from top to bottom; An angle adjustment mechanism (3) is provided on one side of the screening cylinder (12), and the angle adjustment mechanism (3) is used to adjust the angle of the screening cylinder (12).

2. The tea sieving device as described in claim 1, characterized in that: The angle adjustment mechanism (3) includes a first connector (31) and a second connector (32). The side wall of the first connector (31) is fixedly connected to the outer periphery of the screening cylinder (12). The bottom of the second connector (32) is fixedly connected to the mounting frame (1). An electric push rod (33) is provided between the first connector (31) and the second connector. The output end of the electric push rod (33) is hinged to the first connector (31) and the output end of the electric push rod (33) is hinged to the second connector (32).

3. The tea sieving device as described in claim 1, characterized in that: A protective shell (4) is provided between the driven gear ring (25) and the driving gear (26). The protective shell (4) is annular. The bottom of the protective shell (4) is in contact with the screening screen (24). The side wall of the protective shell (4) is fixedly connected to the inner wall of the screening cylinder (12).

4. The tea sieving device as described in claim 1, characterized in that: The outer periphery of the screening cylinder (12) is fixedly connected with reinforcing ribs (5), and the number of reinforcing ribs (5) is set to multiple, and the multiple reinforcing ribs (5) are evenly distributed.

5. The tea sieving device as described in claim 1, characterized in that: The mounting frame (1) has a buffer pad (6) fixedly connected to its side wall. The buffer pad (6) is made of rubber material.

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