Vibrating anti-blocking hole screening device for tea processing

Abstract

The utility model relates to tea processing equipment technical field, concretely relates to vibration type anti -blocking hole screening device for tea processing, set up the distribution box through the lower end of feed hopper, the inside installation pivot and distribution rod of distribution box, pivot and distribution rod rotate by servo motor drive, and then the tea in feed hopper is sent to the screening net more evenly, to avoid the accumulation caused by one -time feeding too much, also reduce the risk of feed hopper blockage. In the process of operation of screening net, the driving motor can drive the cam to rotate, and the strip plate is pulled through the connecting rod, so that the beating rod reciprocates forward and backward, realizes the effect that the rubber hammer intermittently knocks the screen, and then shakes off the tea that is stuck, reduces the hole blocking rate of the screen. The inconvenience of manual shutdown hole cleaning is saved, the work intermittent time is greatly shortened, and the processing efficiency is effectively improved, and the work burden of the staff is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of tea processing equipment, and in particular to a vibrating anti-clogging screening device for tea processing. Background Technology

[0002] In tea processing, sieving is a key step in improving tea quality. However, traditional sieving devices are prone to two major problems: First, the feed rate is difficult to control, and the instantaneous accumulation of tea leaves leads to uneven sieving and can easily cause blockage of the feed hopper. Second, tea leaves are easily stuck in the screen holes during the sieving process, which greatly reduces the sieving efficiency after forming blockages, and manual cleaning is time-consuming and labor-intensive.

[0003] The existing patent document CN203316376U discloses a tea sorting device, characterized in that: the tea sorting device has a fixed frame, the fixed frame is wrapped with a filter screen, and the fixed frame is installed at the vibrating plate of the tea leaf sorting machine; its advantages are: it uses the vibration of the tea leaf sorting machine for sorting, without consuming other energy, which is energy-saving and environmentally friendly; after sorting, the tea leaves can be separated from large tea leaves and broken tea leaves, thus improving the quality of the tea.

[0004] However, due to the lack of control measures for the tea feed rate during actual use, and the absence of measures to reduce clogging during the sieving process, the device is prone to poor sieving results and clogging of the screen due to excessive material accumulation. To address this, we proposed a vibrating anti-clogging sieving device for tea processing. This solves the problems of inconvenient control over the tea feed rate and easy clogging of the screen, improving the practical effect and sieving efficiency of the equipment, thereby ensuring production continuity, reducing the probability of human intervention, and improving overall production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a vibrating anti-clogging screening device for tea processing, which solves the problems of inconvenient control of tea feed and easy clogging of the screen in existing devices.

[0006] To achieve the above objectives, this utility model provides a vibrating anti-clogging screening device for tea processing, including a screening box. An installation block is fixedly welded to the inner wall of the screening box. A screening screen is elastically connected to the top of the installation block via a spring. A discharge port is provided at one end of the screening screen. Two striking rods are horizontally inserted vertically through the side wall of the screening box away from the discharge port. A rubber hammer is fixedly fitted onto the end of each striking rod near the screening screen. A strip plate is fixedly connected to the ends of the two striking rods away from the screening screen. A connecting rod is hinged to the side of the strip plate away from the striking rods. A cam is rotatably connected to the end of the connecting rod away from the strip plate. A drive motor is fixedly connected to the end of the cam shaft via a coupling. It also includes a feeding hopper, the bottom of which is connected to a distribution box. A rotating shaft is rotatably installed inside the distribution box, and distribution rods are evenly arranged in a matrix on the outside of the rotating shaft.

[0007] A servo motor is fixedly installed on the outer wall of the material distribution box. The output end of the servo motor is fixedly connected to one end of the rotating shaft through a coupling. Both ends of the rotating shaft are rotatably connected to the inner wall of the material distribution box. The top of the material distribution rod has an arc-shaped bend structure.

[0008] The screening screen includes a coarse screen and a fine screen. A vibration motor is fixedly installed at the bottom of both the coarse screen and the fine screen. The discharge port of the coarse screen and the fine screen is inclined downward at an angle of not less than 15 degrees.

[0009] The discharge port includes a first discharge plate and a second discharge plate. The first discharge plate is fixedly installed on the coarse screen at the end away from the striking rod, and the second discharge plate is fixedly installed on the fine screen at the end away from the striking rod. The discharge outlets of the first discharge plate and the second discharge plate are staggered.

[0010] The screening box has an impurity discharge port at the bottom and a PLC controller is fixedly installed on the outer wall of the screening box. The PLC controller is electrically connected to the drive motor, servo motor and vibration motor. A support plate is fixedly installed on the top surface of the screening box at the end away from the discharge port.

[0011] The material distribution box is fixedly installed on the top surface of the support plate, the bottom end of the drive motor is fixedly provided with a support base, an L-shaped fixing plate is fixedly provided on one side of the support base, the camshaft end passes through the L-shaped fixing plate and is rotatably connected to the L-shaped fixing plate through a bearing seat.

[0012] This utility model discloses a vibrating anti-clogging screening device for tea processing. A distribution box is installed at the lower end of the feed hopper, inside which a rotating shaft and distribution rod are installed. A servo motor drives the rotating shaft and distribution rod to rotate, thus evenly distributing the tea leaves in the feed hopper onto the screening screen. This avoids excessive feeding at once, preventing accumulation and reducing the risk of clogging. During the screening process, the drive motor rotates a cam, which pulls a strip plate via a connecting rod, causing the striking rod to reciprocate. This achieves the effect of intermittently striking the screen with a rubber hammer, dislodging stuck tea leaves and reducing the clogging rate. This eliminates the inconvenience of manual shutdown for cleaning, significantly shortens downtime, effectively improves processing efficiency, and reduces the workload of workers. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the screening box of this utility model; Figure 4 This is a schematic diagram of the material distribution rod structure of this utility model.

[0015] In the diagram: 1. Screening box; 2. Mounting block; 3. Spring; 4. Screening mesh; 5. Discharge port; 6. Striking rod; 7. Rubber hammer; 8. Strip plate; 9. Connecting rod; 10. Cam; 11. Drive motor; 12. Feed hopper; 13. Distributor box; 14. Rotating shaft; 15. Distributor rod; 16. Servo motor; 17. Vibration motor; 18. Coarse screen; 19. Fine screen; 20. First discharge plate; 21. Second discharge plate; 22. Impurity discharge port; 23. PLC controller; 24. Support plate; 25. Support base; 26. L-shaped fixing plate. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] The first embodiment of this application is as follows: Please see Figure 1 - Figure 3The vibratory anti-clogging screening device for tea processing in this embodiment includes a screening box 1. An installation block 2 is fixedly welded to the inner wall of the screening box 1. A screening screen 4 is elastically connected to the top of the installation block 2 through a spring 3. A discharge port 5 is provided at one end of the screening screen 4. Two striking rods 6 are horizontally inserted vertically on the side wall of the screening box 1 away from the discharge port 5. A rubber hammer 7 is fixedly fitted at the end of the striking rod 6 near the screening screen 4. A strip plate 8 is fixedly connected to the end of the two striking rods 6 away from the screening screen 4. A connecting rod 9 is hinged to the side of the strip plate 8 away from the striking rods 6. A cam 10 is rotatably connected to the end of the connecting rod 9 away from the strip plate 8. A drive motor 11 is fixedly connected to the shaft end of the cam 10 through a coupling. A support seat 25 is fixedly provided at the bottom end of the drive motor 11. An L-shaped fixing plate 26 is fixedly provided on one side of the support seat 25. The shaft end of the cam 10 passes through the L-shaped fixing plate 26 and is rotatably connected to the L-shaped fixing plate 26 through a bearing seat. The screening screen 4 includes a coarse screen 18 and a fine screen 19. A vibration motor 17 is fixedly installed at the bottom of both the coarse and fine screens 18 and 19. The discharge ports 5 of both screens are inclined downwards at an angle of at least 15 degrees. The discharge ports 5 include a first discharge plate 20 and a second discharge plate 21. The first discharge plate 20 is fixedly installed at the end of the coarse screen 18 away from the striking rod 6, and the second discharge plate 21 is fixedly installed at the end of the fine screen 19 away from the striking rod 6. The discharge outlets of the first and second discharge plates 20 are staggered. An impurity discharge port 22 is provided at the bottom of the screening box 1. A PLC controller 23 is fixedly installed on the outer wall of the screening box 1. A support plate 24 is fixedly installed on the top surface of the end of the screening box 1 away from the discharge port 5.

[0018] In the above scheme, during tea processing, the material is fed from the top of the screening box 1 and falls onto the coarse screen 18. The coarse screen 18 and the fine screen 19 vibrate under the action of the vibrating motor 17, causing the material to be graded: coarse material is discharged along the inclined coarse screen 18 through the first discharge plate 20, medium and fine material falls into the fine screen 19, fine material is discharged through the second discharge plate 21, and impurities fall through the fine screen 19 from the impurity discharge port 22. Simultaneously, the drive motor 11 drives the cam 10 to rotate, which pushes the strip plate 8 to move back and forth through the connecting rod 9, causing the rubber hammer 7 at the end of the striking rod 6 to repeatedly strike the screening screen 4, resulting in intermittent, relatively large-amplitude vibrations of the screening screen 4. This dislodges tea leaves stuck in the screen holes, preventing clogging.

[0019] The second embodiment of this application is as follows: Please see Figure 2 - Figure 4Based on the first embodiment, the vibratory anti-clogging screening device for tea processing in this embodiment further includes a feeding hopper 12. A distribution box 13 is connected to the bottom of the feeding hopper 12. A rotating shaft 14 is rotatably installed inside the distribution box 13. Distribution rods 15 are evenly arranged in a matrix on the outside of the rotating shaft 14. A servo motor 16 is fixedly installed on the outer wall of the distribution box 13. The output end of the servo motor 16 is fixedly connected to the rotating shaft 14 through a coupling. Both ends of the rotating shaft 14 are rotatably connected to the inner wall of the distribution box 13. The top of the distribution rod 15 has an arc-shaped bend structure. The distribution box 13 is fixedly installed on the top surface of the support plate 24. The PLC controller 23 controls the start and stop and the speed of the servo motor 16 and the drive motor 11, and also controls the start and stop of the vibration motor 17.

[0020] Through the above scheme, the servo motor 16 drives the rotating shaft 14 to rotate, which in turn drives the matrix material distribution rod 15 to rotate at a constant speed, thereby evenly distributing the tea leaves onto the coarse screen 18, avoiding uneven material distribution that could lead to excessive accumulation of tea leaves on the screen and affect the processing effect.

[0021] Working principle: First, the tea leaves to be screened are poured into the feed hopper 12. Then, the servo motor 16 and the vibration motor 17 are turned on by the PLC controller 23. The servo motor 16 drives the rotating shaft 14 to rotate, which in turn causes multiple distributing rods 15 to rotate synchronously. Through the arc-shaped hooks set at the top of the distributing rods 15, the tea leaves can be inserted into the tea leaves and turned onto the coarse screen 18 below. This controls the amount of tea leaves falling and prevents the tea leaves from accumulating on the screening screen 4, which would affect the screening effect. At the same time, it also greatly reduces the risk of clogging of the feed hopper 12. Through the continuous vibration of the vibration motor 17, the tea leaves are dispersed. Since both the coarse screen 18 and the fine screen 19 are inclined towards the discharge port 5, the tea leaves slowly move towards the discharge port 5 during the vibration process. During the movement, smaller tea leaves fall through the mesh of the coarse screen 18 onto the fine screen 19, while finer impurities such as sand continue to fall downwards to the impurity discharge port 22 for discharge, thus achieving the effect of tea grading and impurity removal. During the tea sieving process, the drive motor 11 can be turned on by the PLC controller 23. The drive motor 11 drives the cam 10 to rotate, which in turn drives the two striking rods 6 to move back and forth along the corresponding holes in the sieving box 1 through the connecting rod 9. This causes the two striking rods 6 to intermittently strike the coarse screen 18 and the fine screen 19, producing an intermittent large-amplitude vibration effect, so as to shake off the tea stuck in the mesh of the sieving screen 4, reduce the clogging rate, and improve the sieving effect.

[0022] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A vibrating anti-clogging screening device for tea processing, comprising a screening box (1), characterized in that: The inner wall of the screening box (1) is fixedly welded with an installation block (2). The top of the installation block (2) is elastically connected to a screening screen (4) via a spring (3). One end of the screening screen (4) is provided with a discharge port (5). Two striking rods (6) are horizontally inserted through the side wall of the screening box (1) away from the discharge port (5). A rubber hammer (7) is fixedly fitted on the end of the striking rod (6) near the screening screen (4). A strip plate (8) is fixedly connected to the end of the two striking rods (6) away from the screening screen (4). A connecting rod (9) is hinged to the side of the strip plate (8) away from the striking rod (6). A cam (10) is rotatably connected to the end of the connecting rod (9) away from the strip plate (8). A drive motor (11) is fixedly connected to the shaft end of the cam (10) via a coupling. It also includes a feeding hopper (12), the bottom of which is connected to a distribution box (13), a rotating shaft (14) is rotatably installed inside the distribution box (13), and distribution rods (15) are evenly arranged in a matrix on the outside of the rotating shaft (14).

2. The vibrating anti-clogging screening device for tea processing as described in claim 1, characterized in that: A servo motor (16) is fixedly installed on the outer wall of the material distribution box (13). The output end of the servo motor (16) is fixedly connected to a rotating shaft (14) through a coupling. Both ends of the rotating shaft (14) are rotatably connected to the inner wall of the material distribution box (13). The top end of the material distribution rod (15) has an arc-shaped bend structure.

3. The vibrating anti-clogging screening device for tea processing as described in claim 1, characterized in that: The screening screen (4) includes a coarse screen (18) and a fine screen (19). Both the coarse screen (18) and the fine screen (19) are fixedly equipped with a vibration motor (17) at their bottom ends. The coarse screen (18) and the fine screen (19) are equipped with a discharge port (5) with one end tilted downward at a degree of not less than 15 degrees.

4. The vibrating anti-clogging screening device for tea processing as described in claim 3, characterized in that: The discharge port (5) includes a first discharge plate (20) and a second discharge plate (21). The first discharge plate (20) is fixedly installed at the end of the coarse screen (18) away from the striking rod (6), and the second discharge plate (21) is fixedly installed at the end of the fine screen (19) away from the striking rod (6). The discharge outlets of the first discharge plate (20) and the second discharge plate (21) are staggered.

5. The vibrating anti-clogging screening device for tea processing as described in claim 1, characterized in that: The screening box (1) has an impurity discharge port (22) at the bottom. A PLC controller (23) is fixedly installed on the outer wall of the screening box (1). A support plate (24) is fixedly installed on the top surface of the end of the screening box (1) away from the discharge port (5).

6. The vibrating anti-clogging screening device for tea processing as described in claim 2, characterized in that: The material distribution box (13) is fixedly installed on the top surface of the support plate (24). The bottom end of the drive motor (11) is fixedly provided with a support base (25). An L-shaped fixing plate (26) is fixedly provided on one side of the support base (25). The shaft end of the cam (10) passes through the L-shaped fixing plate (26) and is rotatably connected to the L-shaped fixing plate (26) through a bearing seat.

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