A screening device for producing jasmine tea

Abstract

The present application discloses a screening device for jasmine tea production, relates to the field of sorting technology, improves the screening effect of camellia, the screening device comprises a frame, a screen box arranged on the frame and a shock-absorbing spring connecting the screen box and the frame, a shock-absorbing motor is installed at the lower end of the screen box; a first screen and a second screen are arranged on the screen box; the first screen and the second screen are respectively located at the left half and the right half of the screen box; both ends of the first screen and the second screen in the conveying direction are provided with a baffle plate, and the first screen and the second screen are both inclined from the head to the tail; a discharge port is provided on the baffle plate at the tail of the first screen and close to one side of the second screen, and the tail of the first screen is inclinedly provided with an arc guide plate for guiding the camellia to the discharge port, and the arc opening of the arc guide plate is facing the direction of the discharge port. The present application can improve the screening effect of camellia.

Description

Technical Field

[0001] The present application relates to the field of sorting technology, and in particular to a screening device for jasmine tea production. Background Art

[0002] Jasmine tea, also known as jasmine scented tea, is a scented tea. The tea base is green tea. The jasmine flowers are removed from the finished product. It is also a type of green tea and has a history of more than 1,000 years.

[0003] The production process of jasmine tea generally includes tea base processing, flower maintenance, scenting, flower clearing, collecting and continuing scenting, flower removal, re-firing, scenting, re-firing and cooling, weaving, and evenly piling to obtain the finished product. After the flower tea has been processed through the above steps, it will be screened, that is, the step of separating the tea flowers. The screening is mainly carried out by a linear vibrating screen.

[0004] The existing linear vibrating screen mainly includes a frame, the upper part of the frame is connected to a screen box through a damping spring, the lower surface of the screen box is provided with a vibration motor, a screen is installed on the upper part of the screen box, the screen is inclined from the head toward the tail, and the head of the screen is higher than the tail, a screen box discharge trough is provided at the tail of the screen box, and a screen discharge trough is provided at the tail of the screen.

[0005] When the camellia flowers are piled on the linear vibrating screen for screening, the camellia flowers that are in contact with the screen have a better separation effect, while the camellia flowers whose upper surfaces are not in contact with the screen have a poor separation effect, resulting in a poor overall screening effect of the camellia flowers. Summary of the invention

[0006] In order to improve the screening effect of camellia, the present application provides a screening device for jasmine tea production.

[0007] The present application provides a screening device for jasmine tea production, which adopts the following technical solution:

[0008] A screening device for jasmine tea production, comprising a frame, a screen box arranged on the frame and a shock-absorbing spring connecting the screen box and the frame, wherein a shock-absorbing motor is installed at the lower end of the screen box; a first screen and a second screen are arranged on the screen box; the first screen and the second screen are respectively located at the left half and the right half of the screen box; both ends of the first screen and the second screen in the conveying direction are provided with a baffle plate, the first screen and the second screen are both inclined from the head to the tail, and the horizontal heights of the first screen and the second screen are higher than the tail of the second screen; the head of the second screen is located at the position of the tail of the first screen, and the horizontal position of the tail of the first screen is higher than the horizontal position of the head of the second screen; a first discharge channel connected to the tail of the second screen is opened on the side wall of the screen box; a discharge port is opened on the baffle plate at the tail of the first screen and close to the second screen, and an arc guide plate for guiding the camellia to the discharge port is inclined at the tail of the first screen, and the arc port of the arc guide plate faces the direction of the discharge port.

[0009] By adopting the above technical solution, after the material is vibrated and screened by the first screen, it comes into the arc mouth of the arc guide plate and rolls along the arc trajectory of the arc mouth. Finally, it is guided to the discharge port by the arc guide plate and falls into the second screen for re-screening. During the screening process, the overall screening of the material is more thorough, which effectively improves the screening effect.

[0010] Optionally, it also includes an evenly spreading mechanism, which is located above the second screen and is used to evenly spread the material discharged from the discharge port on the second screen.

[0011] By adopting the above technical solution, the spreading mechanism can make the material screened by the first screen be spread more evenly on the second screen for screening, thereby further improving the screening effect of the material.

[0012] Optionally, the material balancing mechanism includes a material balancing plate, which includes a coaxially arranged inner ring, an outer ring and a ring plate, the inner ring and the outer ring are directly connected by a connecting rod, the outer ring is fixed above the second screen, and the outer ring, the inner ring and the ring plate together form an annular channel, and the material balancing mechanism also includes a driving member for controlling the axial rotation of the ring plate around the ring plate; a lower hopper is fixed to the lower end of the ring plate, and a lower material port connected to the lower hopper is opened on the ring plate, two material storage plates are arranged between the inner ring and the outer ring, and a material storage cavity aligned with the discharge port is formed between the two material storage plates, and a sealing plate is connected to the lower end of the outer ring for covering the outlet of the lower hopper when the lower hopper is located in the material storage cavity.

[0013] By adopting the above technical solution, when the ring disk rotates into the storage cavity, the material in the storage cavity falls into the lower hopper for storage, and then the lower hopper is rotated out of the storage cavity, and the material in the lower hopper will be gradually evenly spread on the second screen.

[0014] Optionally, the driving member includes a driving motor, which is fixedly mounted on the inner ring. The output shaft of the driving motor is coaxial with the inner ring, and a driving rod is vertically fixed to the output shaft of the driving motor, and the end of the driving rod is fixedly connected to the ring disk.

[0015] By adopting the above technical solution, a driving motor is used as a driving source, which has the advantages of simple structure and stable force.

[0016] Optionally, a partition extending downward is provided on the bottom plate of the first screen near the second screen to separate the first screen from the second screen.

[0017] By adopting the above technical solution and setting of the partition, the material on the second screen can be effectively prevented from falling into the screen box through the gap between the first screen and the second screen.

[0018] Optionally, the screen box is provided with a guide plate inclined toward one side below the first screen and the second screen, and a second discharge channel communicating with the guide plate is provided at the bottom of one side of the screen box.

[0019] By adopting the above technical solution and setting of the guide plate, the screened material can be easily discharged from the second discharge channel.

[0020] Optionally, a guide plate is fixed to the surface of the guide plate close to one end of the second discharge channel, and the guide plate is used to guide the material falling on the guide plate to the second discharge channel.

[0021] By adopting the above technical solution and setting of the guide plate, the material can be effectively prevented from being retained on the guide plate.

[0022] Optionally, the screen box is covered with a dust cover, and the dust cover is provided with a feed channel at the head close to the first screen.

[0023] By adopting the above technical solution, the provision of the dust cover can effectively prevent dust and other impurities from falling onto the screen.

[0024] In summary, the present application includes at least one of the following beneficial effects:

[0025] 1. This application can effectively improve the screening effect of materials;

[0026] 2. By setting up the averaging mechanism, the material can be evenly spread on the second screen, thereby improving the screening effect of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0028] Figure 2 It is a cross-sectional schematic diagram of this embodiment;

[0029] Figure 3 is a top view of this embodiment;

[0030] Figure 4 It is a structural schematic diagram of the material balancing tray of this embodiment;

[0031] Figure 5 It is a structural schematic diagram of the lower hopper in this embodiment;

[0032] Figure 6 Schematic diagram of the structure of the dust cover in this embodiment.

[0033] Explanation of the reference numerals in the accompanying drawings: 1. frame; 2. screen box; 3. shock-absorbing spring; 4. vibration motor; 5. first screen; 6. second screen; 7. material baffle plate; 8. first discharge channel; 9. second discharge channel; 10. arc guide plate; 11. material distribution plate; 12. inner ring; 13. outer ring; 14. ring plate; 15. driving motor; 16. driving rod; 17. discharge port; 18. discharge hopper; 19. storage plate; 20. discharge port; 21. partition; 22. guide plate; 23. drainage plate; 24. connecting rod; 25. dust cover; 26. discharge table; 27. sealing plate; 28. connecting rod; 29. ​​feed channel. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings.

[0035] The present application embodiment discloses a screening device for producing jasmine tea. Figure 1 , 2 The screening equipment for jasmine tea production includes a frame 1, a screen box 2 arranged on the frame 1, and a shock-absorbing spring 3 connecting the screen box 2 and the frame 1, and the shock-absorbing spring 3 is located at the four corners of the frame 1. A vibration motor 4 is installed at the bottom of the screen box 2, and the materials on the screen box 2 can be vibrated and screened by the cooperation of the vibration motor 4 and the shock-absorbing spring 3.

[0036] Reference Figure 1 , 2The first screen 5 and the second screen 6 are fixed on the screen box 2, and the first screen 5 and the second screen 6 are respectively located at the left half and the right half of the screen box 2. The first screen 5 and the second screen 6 are both inclined from the head to the tail, and the horizontal heights of the first screen 5 and the second screen 6 are higher than the tail of the second screen 6. The first screen 5 and the second screen 6 are inclined in opposite directions, the head of the second screen 6 is located at the position of the tail of the first screen 5, and the horizontal position of the tail of the first screen 5 is higher than the horizontal position of the head of the second screen 6.

[0037] Baffle plates 7 are provided at both ends of the conveying direction of the first screen 5 and the second screen 6. The baffle plates 7 are mainly used to prevent the material from falling from the screen when the screen box 2 vibrates. A discharge port 20 is provided on the baffle plate 7 at the tail of the first screen 5 and close to the second screen 6. An arc guide plate 10 inclined toward the discharge port 20 is fixed to the tail of the first screen 5. The arc of the arc guide plate 10 is toward the discharge port 20. During screening, the camellia moves from the head to the tail of the first screen 5. When the camellia reaches the arc position of the arc guide plate 10, the camellia will accumulate in the arc, move along the arc track, and turn over in the arc. At the same time, the camellia will move toward the discharge port 20 along the inclination direction of the arc guide plate 10 during the turning process, and fall onto the second screen 6 to continue screening.

[0038] The side wall of the screen box 2 is provided with a first discharge channel 8 connected to the tail of the second screen 6, for discharging the screened material from the first discharge channel 8. A downwardly extending partition 21 is provided on the bottom plate of the first screen 5 close to the second screen 6, for separating the first screen 5 from the second screen 6, and preventing the material on the second screen 6 from falling into the screen box 2 from the gap between the first screen 5 and the second screen 6.

[0039] Reference Figure 2 A guide plate 22 inclined toward one side is provided at the bottom of the screen box 2, and a second discharge channel 9 connected to the guide plate 22 is provided at the bottom of one side of the screen box 2. It should be noted here that the second discharge channel 9 is connected to one end of the guide plate 22 at the bottom of the horizontal height, so that the screened material can be discharged from the second discharge channel 9 along the guide plate 22. A guide plate 23 is fixed on the surface of the guide plate 22 near one end of the second discharge channel 9, and the guide plate 23 is inclined toward the direction of the second discharge channel 9, and is used to guide the material falling on the guide plate 22 to the second discharge channel 9.

[0040] Reference Figure 3 , 4 The screening equipment for jasmine tea production also includes an evenly spreading mechanism, which is arranged on the head of the second screen 6 and is mainly used to receive the material discharged from the discharge port 20 and evenly spread the material on the second screen 6.

[0041] Reference Figure 4 , 5 The paving mechanism includes a material distribution plate 11, which includes an inner ring 12, an outer ring 13 and an annular plate 14, which are coaxially arranged. The annular plate 14 is supported at the bottom of the inner ring 12 and the outer ring 13, and is rotatably connected with the inner ring 12 and the outer ring 13. The inner ring 12, the outer ring 13 and the annular plate 14 together form an annular channel. The inner ring 12 and the outer ring 13 are fixedly connected by a connecting rod 24, one end of which is welded to the inner ring 12, and the other end is welded to the outer ring 13. The outer side of the outer ring 13 is welded to the two material blocking plates 7 of the second screen 6.

[0042] Reference Figure 4 , 5 The balancing mechanism further includes a driving member, specifically, the driving member includes a driving motor 15, the driving motor 15 is fixedly mounted on the side wall of the inner ring 12, the output shaft of the driving motor 15 is coaxial with the inner ring 12, a driving rod 16 is vertically welded on the output shaft of the driving motor 15, and the end of the driving rod 16 is welded to the ring disk 14. When the driving motor 15 can control the rotation of the ring disk 14 by controlling the rotation of the output shaft.

[0043] Reference Figure 4 , 5 Two material storage plates 19 are fixed between the inner ring 12 and the outer ring 13, and the two material storage plates 19 separate the annular channel into a material storage cavity aligned with the discharge port 20. A lower hopper 18 is fixed at the lower end of the ring disk 14, and a lowering port 17 connected to the lower hopper 18 is provided on the ring disk 14. When the ring disk 14 rotates until the lowering port 17 is located in the material storage cavity, the material in the material storage cavity will enter the lower hopper 18 through the lowering port 17, and the material will be spread more evenly on the second screen 6 by the uniform rotation of the ring disk 14.

[0044] Reference Figure 5 , a sealing plate 27 is provided below the outer ring 13, and the sealing plate 27 is connected to the outer ring 13 by a connecting rod 28, one end of the connecting rod 28 is welded to the end of the sealing plate 27, and the other end is welded to the outer ring 13. When the lower hopper 18 is located in the storage cavity, the sealing plate 27 can cover the outlet of the lower hopper 18. In this embodiment, the number of the lower hopper 18 and the lower material port 17 is selected to be one, and of course in other embodiments, the number of the lower material port 17 and the lower hopper 18 can be set according to demand.

[0045] Reference Figure 1 The first screen 5 is located at the discharge port 20 and is extended with a discharge platform 26 to facilitate smooth guidance of the material into the storage cavity.

[0046] Reference Figure 6 The screen box 2 is covered with a dust cover 25 , and a feed channel 29 is opened at the head of the dust cover 25 near the first screen 5 , and the material enters the first screen 5 through the feed channel 29 .

[0047] The implementation principle of a screening device for jasmine tea production in the embodiment of the present application is as follows:

[0048] After the material has been screened by the first screen 5, it is guided by the arc guide plate 10 and enters the material distribution plate 11. The rotating feed hopper evenly spreads the material on the second screen 6 for further screening, thereby improving the screening efficiency. The separated materials are discharged from the first discharge channel 8 and the second discharge channel 9 respectively.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A screening device for producing jasmine tea, comprising a frame (1), a screen box (2) arranged on the frame (1), and a shock-absorbing spring (3) connecting the screen box (2) and the frame (1), wherein a shock-absorbing motor is installed at the lower end of the screen box (2); characterized in that: The screen box (2) is provided with a first screen (5) and a second screen (6); the first screen (5) and the second screen (6) are respectively located at the left half and the right half of the screen box (2); both ends of the first screen (5) and the second screen (6) in the conveying direction are provided with a material blocking plate (7); the first screen (5) and the second screen (6) are both inclined from the head to the tail, and the horizontal height of the head of the first screen (5) and the second screen (6) is higher than the tail of the second screen (6); the head of the second screen (6) is located at the position of the tail of the first screen (5), and the horizontal position of the tail of the first screen (5) is higher than the horizontal position of the head of the second screen (6); the screen box ( The side wall of the second screen (6) is provided with a first discharge channel (8) connected to the tail of the second screen (6); a discharge port (20) is provided on a baffle plate (7) at the tail of the first screen (5) and close to the second screen (6); an arc-shaped guide plate (10) is obliquely arranged at the tail of the first screen (5) for guiding the camellia to the discharge port (20), and the arc opening of the arc-shaped guide plate (10) faces the direction of the discharge port (20); and also includes a spreading mechanism, the spreading mechanism is located above the second screen (6), and the spreading mechanism is used to evenly spread the material discharged from the discharge port (20) on the second screen (6); the spreading mechanism includes a spreading plate (11), and the spreading plate (11) includes a coaxially arranged inner ring ( 12), an outer ring (13) and an annular disc (14), the inner ring (12) and the outer ring (13) being directly connected via a connecting rod (24), the outer ring (13) being fixed above the second screen (6), the outer ring (13), the inner ring (12) and the annular disc (14) jointly forming an annular channel, the averaging mechanism further comprising a driving member arranged to control the annular disc (14) to rotate axially around the annular disc (14); a material discharge hopper (18) being fixed at the lower end of the annular disc (14), a material discharge port (17) being provided on the annular disc (14) and communicating with the material discharge hopper (18), two material storage plates (19) being arranged between the inner ring (12) and the outer ring (13), a material discharge port (17) being aligned with the material discharge port (18) being formed between the two material storage plates (19). The outer ring (13) has a material storage cavity with an opening (20), the lower end of the outer ring (13) is connected to a sealing plate (27) for shielding the outlet of the lower hopper (18) when the lower hopper (18) is located in the material storage cavity; the driving member comprises a driving motor (15), the driving motor (15) is fixedly mounted on the inner ring (12), the output shaft of the driving motor (15) is coaxial with the inner ring (12), and a driving rod (16) is vertically fixed to the output shaft of the driving motor (15), and the end of the driving rod (16) is fixedly connected to the ring disk (14); the bottom plate of the first screen (5) close to the second screen (6) is provided with a downwardly extending partition (21) for separating the first screen (5) from the second screen (6);The screen box (2) is provided with a guide plate (22) inclined toward one side below the first screen (5) and the second screen (6); a second discharge channel (9) connected to the guide plate (22) is provided at the bottom of one side of the screen box (2); a guide plate (23) is fixed to the surface of the guide plate (22) near one end of the second discharge channel (9); the guide plate (23) is used to guide the material falling on the guide plate (22) to the second discharge channel (9). ; 2. A screening device for jasmine tea production according to claim 1, characterized in that: The screen box (2) is covered with a dust cover (25), and a feed channel (29) is provided on the dust cover (25) near the head of the first screen (5).

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