Screening and conveying equipment for black tea processing

Abstract

The utility model relates to the technical field of conveying equipment, and discloses screening and conveying equipment for black tea processing, which comprises a drying box and an air heater mounted on the drying box. The conveying device comprises a drying box, and further comprises a feeding port fixedly connected to the drying box, a screening plate fixedly connected to the drying box, a supporting frame fixedly connected to the drying box, a conveying belt body installed between the drying box and the supporting frame, a first connecting rod arranged on the drying box and a second flow guide plate fixedly connected to the first connecting rod. The second connecting rod is fixedly connected to the second flow guide plate, the rotating disc is rotationally connected to the second connecting rod, and the driving assembly is installed on the drying box. The second flow guide plate jumps up the tea leaves and heats the tea leaves at the same time, the tea leaves can be evenly dispersed and prevented from being stacked by juggling up the tea leaves, and therefore heating is even, moisture on the surfaces of the tea leaves is removed through heating, adhesion caused by the moisture can be effectively avoided, the conveying efficiency of the tea leaves is guaranteed, and the working efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a screening and conveying equipment for black tea processing. Background Art

[0002] The production of black tea involves multiple steps, and the transportation between multiple steps requires the use of conveying equipment. The tea leaves are continuously transported by the conveying equipment to transfer the tea leaves to different processing equipment to improve work efficiency.

[0003] In the prior art, general conveying equipment is to transport tea between various processing links through conveyor belts. However, tea, as a special material, will inevitably retain a certain amount of moisture during the picking and processing stages. This moisture makes the surface of the tea sticky. During the transportation through the conveyor belt, the tea is very likely to stick to the surface of the conveyor belt, so the staff have to use various tools, such as scrapers, brushes, etc., to regularly clean the conveyor belt. This cleaning process not only consumes a lot of manpower and time, but also forces the entire conveying operation process to be interrupted, seriously affecting the work efficiency of tea transportation and increasing production costs. Therefore, it is necessary to improve a screening and conveying equipment for black tea processing to solve the above problems. Utility Model Content

[0004] In order to overcome the problem that the surface of tea leaves has moisture and sticks to the conveyor belt, affecting work efficiency.

[0005] The technical solution of the utility model is: a screening and conveying device for processing black tea leaves, comprising a drying box and a hot air blower installed on the drying box, and also comprising a feed port fixedly connected to the drying box, a screening plate fixedly connected to the drying box, a support frame fixedly connected to the drying box, a conveyor belt body installed between the drying box and the support frame, a first connecting rod provided on the drying box, a second guide plate fixedly connected to the first connecting rod, a second connecting rod fixedly connected to the second guide plate, a rotating disk rotatably connected to the second connecting rod, a driving component installed on the drying box, a vibrating component installed on the support frame, and a collecting box slidably connected to the drying box, wherein the driving component drives the second connecting rod to perform a circular motion with the axis of the rotating disk as the midpoint through the rotating disk.

[0006] Preferably, the drying box is provided with a movable groove at a position corresponding to the first connecting rod, and the first connecting rod is arranged inside the movable groove.

[0007] Preferably, the drying box is provided with a through hole having the same size as the rotating disk at a corresponding position of the second connecting rod, and the second connecting rod passes through the through hole.

[0008] Preferably, the drive assembly includes a drive motor fixedly connected to the drying box, a first pulley fixedly connected to the output end of the drive motor, a second pulley fixedly connected to the conveyor belt body, and a first synchronous belt transmission-connected between the first pulley and the second pulley. The drive motor causes the conveyor belt body and the rotating disk to move synchronously through the first synchronous belt.

[0009] Preferably, the vibration assembly includes a rotating drum rotatably connected to the support frame, a rotating roller rotatably connected to the rotating drum, a third pulley fixedly connected to the rotating drum, a second synchronous belt transmission-connected to the third pulley, a fourth pulley fixedly connected to the rotating drum, a fifth pulley fixedly connected to the conveyor belt body, and a third synchronous belt transmission-connected between the fourth pulley and the fifth pulley, and the rotating drum moves synchronously with the conveyor belt body.

[0010] Preferably, the rotating drum is provided with a groove at a position corresponding to the rotating roller, and the rotating roller is arranged inside the groove, and the rotating roller is in contact with the conveyor belt body.

[0011] Preferably, two rotating drums are provided, and the two rotating drums are symmetrically arranged at corresponding positions on the conveyor belt body.

[0012] Beneficial effects of the utility model:

[0013] 1. The second guide plate heats the tea leaves while stirring them up. Stirring the tea leaves can disperse them evenly and avoid accumulation, thus heating them evenly. By heating, moisture on the surface of the tea leaves is removed, which can effectively avoid adhesion caused by moisture, ensuring the tea delivery efficiency and work efficiency.

[0014] 2. By rotating the roller to make the conveyor belt vibrate, the tea leaves transported on the surface can be spread out evenly and distributed evenly, which is convenient for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an embodiment of a screening and conveying device for processing black tea of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the drying oven;

[0017] Figure 3 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the conveyor belt body and its connected components of the utility model;

[0019] Figure 5 This is a schematic diagram of the cooperation structure between the rotating drum and the rotating drum of the utility model;

[0020] Figure 6 This is a schematic diagram of the first motion structure of the second guide plate of the utility model;

[0021] Figure 7 This is a schematic diagram of the second motion structure of the second guide plate of the utility model.

[0022] Explanation of the accompanying drawings: 1. Drying box; 21. Feed port; 22. Hot air blower; 23. Screening plate; 24. Conveyor belt body; 25. First connecting rod; 26. Second guide plate; 27. Second connecting rod; 28. Rotating disk; 29. Support frame; 210. Collecting box; 31. Driving motor; 32. First pulley; 33. Second pulley; 34. First synchronous belt; 41. Rotating drum; 42. Rotating roller; 43. Third pulley; 44. Second synchronous belt; 45. Fourth pulley; 46. Fifth pulley; 47. Third synchronous belt. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 7The utility model provides an embodiment: a screening and conveying device for processing black tea, comprising a drying box 1 and a hot air blower 22 installed on the drying box 1, further comprising a feeding port 21 fixedly connected to the drying box 1, a screening plate 23 fixedly connected to the drying box 1, a support frame 29 fixedly connected to the drying box 1, a conveyor belt body 24 installed between the drying box 1 and the support frame 29, a first connecting rod 25 provided on the drying box 1, a second guide plate 26 fixedly connected to the first connecting rod 25, a second connecting rod 27 fixedly connected to the second guide plate 26, a rotating disk 28 rotatably connected to the second connecting rod 27, a driving component installed on the drying box 1, a vibration component installed on the support frame 29, and a conveyor belt body 24 slidably connected to the drying box 1. The collection box 210 on the drying box 1, the driving component drives the second connecting rod 27 to perform a circular motion with the axis of the rotating disk 28 as the midpoint through the rotating disk 28. The tea leaves are guided to the surface of the second guide plate 26 through the feed port 21 and the screening plate 23, and then the hot air is delivered to the corresponding position of the second guide plate 26 inside the drying box 1 through the hot air blower 22. The second connecting rod 27 is driven by the driving component to rotate clockwise, so that the second guide plate 26 shakes the tea leaves, causing the tea leaves to stay in the air for a short time. The second guide plate 26 is limited by the first connecting rod 25. The shaking of the tea leaves can fully heat the accumulated tea leaves and remove the moisture on the surface of the tea leaves. The heat blown out by the hot air blower 22 increases the internal temperature of the drying box 1, so that the temperature is sufficient to remove the moisture on the surface of the tea leaves, and only the moisture on the surface of the tea leaves is removed. In other words, it does not mean that the moisture inside the tea leaves is completely dried. Drying the moisture on the surface of the tea leaves can prevent the tea leaves from sticking to the second guide plate 26 and the conveyor belt body 24 due to moisture during transportation. Then the tea leaves fall on the surface of the conveyor belt body 24 along the second guide plate 26. When the driving device is started, the conveyor belt body 24 also moves to transport the tea leaves. The conveyor belt body 24 includes conveyor rollers and conveyor belts, which are existing technologies and will not be described in detail. The vibration device can vibrate the conveyor belt of the conveyor belt body 24 to disperse the tea leaves evenly. The drying box 1 is provided with a movable groove at the corresponding position of the first connecting rod 25, and the first connecting rod 25 is arranged inside the movable groove. By allowing the first connecting rod 25 to move, the moving path of the first connecting rod 25 is prevented from intersecting with the drying box. 1 causes a conflict that prevents the second guide plate 26 from moving. The drying box 1 has a through hole of the same size as the rotating disk 28 at the corresponding position of the second connecting rod 27, and the second connecting rod 27 passes through the through hole, giving the second connecting rod 27 sufficient space to move, thereby avoiding a path conflict between the second connecting rod 27 and the drying box 1. A vibration motor is installed on the screening plate 23 to make the screening plate 23 vibrate, and the stones and small platycodon in the tea leaves are separated by the screening plate 23 and stored inside the collection box 210. The hot air blower 22 delivers hot air to the corresponding position of the second guide plate 26 inside the drying box 1, and the temperature is controlled at 40-60°C, which is far below the destruction threshold of the effective ingredients of the tea leaves (for example, the oxidation of tea polyphenols requires >70°C, and the decomposition of vitamin C requires >80°C).For the process standard of "low temperature and slow baking" in black tea processing, please refer to (Tea Processing Science).

[0025] See also Figure 1 、 Figure 3 In this embodiment, the driving assembly includes a driving motor 31 fixedly connected to the drying box 1, a first pulley 32 fixedly connected to the output end of the driving motor 31, a second pulley 33 fixedly connected to the conveyor belt body 24, and a first synchronous belt 34 transmission-connected between the first pulley 32 and the second pulley 33. The driving motor 31 causes the conveyor belt body 24 and the rotating disk 28 to move synchronously through the first synchronous belt 34, and can drive the second guide plate 26 to move while driving the conveyor belt body 24, thereby saving manufacturing costs. In addition, the sizes of the first pulley 32 and the second pulley 33 can be replaced, thereby controlling the movement speeds of the second guide plate 26 and the conveyor belt body 24 respectively.

[0026] See also Figure 1 、 Figure 4-Figure 5 In this embodiment, the vibration assembly includes a rotating drum 41 rotatably connected to the support frame 29, a rotating roller 42 rotatably connected to the rotating drum 41, a third pulley 43 fixedly connected to the rotating drum 41, a second synchronous belt 44 transmission-connected to the third pulley 43, a fourth pulley 45 fixedly connected to the rotating drum 41, a fifth pulley 46 fixedly connected to the conveyor belt body 24, and a third synchronous belt 47 transmission-connected between the fourth pulley 45 and the fifth pulley 46. The rotating drum 41 and the conveyor belt body 24 move synchronously, causing the conveyor belt of the conveyor belt body 24 to vibrate, so that the tea leaves on the surface are evenly dispersed to avoid accumulation, thereby facilitating subsequent loading. To provide convenience for work, the rotating drum 41 is provided with a groove at the corresponding position of the rotating roller 42, and the rotating roller 42 is arranged inside the groove, and the rotating roller 42 is in contact with the conveyor belt body 24. The rotatable rotating roller 42 contacts the conveyor belt body 24, which can reduce friction and ensure service life. The materials of the conveyor belt body 24 and the rotating roller 42 can both be made of wear-resistant materials. For example, the rotating roller 42 can be selected from bearing steel, and the conveyor belt body 24 can be made of PVC material, both of which have wear-resistant properties. Two rotating drums 41 are provided, and the two rotating drums 41 are symmetrically arranged at the corresponding positions of the conveyor belt body 24 to evenly drive the conveyor belt body 24 to vibrate.

[0027] During operation, tea leaves are put into the feed port 21, and the tea leaves fall on the surface of the second guide plate 26 through the feed port 21 and the guide of the screening plate 23. The vibration motor causes the screening plate 23 to vibrate, and the stones and small platycodons in the tea leaves are separated by the screening plate 23 and stored in the collection box 210. The collection box 210 can be pulled out to process the impurities inside. The driving motor 31 drives the rotating disk 28, and the rotating disk 28 rotates in the direction indicated by B2, and at the same time drives the second connecting rod 27 to move in the direction of B2, and makes a circular motion around the axis of the rotating disk 28. At the same time, the second connecting rod 27 pulls the second guide plate 26, so that the end of the second guide plate 26 close to the rotating disk 28 also moves synchronously with the second connecting rod 27. The second guide plate 26 is limited by the first connecting rod 25. When the second guide plate 26 is pulled by the second connecting rod 27, the first connecting rod 25 will move back and forth laterally along the direction B3. During the movement, the second guide plate 26 will move from an inclined state to a parallel state (such as Figures 6 and 7 ), and then returns to the inclined state. When the inclined state moves to the parallel state, the tea leaves will be temporarily suspended in the air due to inertia, and the tea leaves will be continuously lifted up. At the same time, the hot air blower 22 delivers hot air to heat the inside of the drying box 1, so that the tea leaves are heated and the surface moisture of the tea leaves is removed. The tea leaves fall on the surface of the conveyor belt body 24 under the guidance of the second guide plate 26. When the driving motor 31 is started, it drives the first pulley 32. The first pulley 32 drives the second pulley 33 through the first synchronous belt 34. The second pulley 33 drives the conveyor belt body 24 to move. The conveyor belt body 24 transports the tea leaves. At the same time, the conveyor belt body 24 moves while driving the fifth pulley 46. The fifth pulley 46 drives the fourth pulley 45 through the third synchronous belt 47. The fourth pulley 45 drives the rotating drum 41. The rotating drum 41 drives the third pulley 43. The third pulley 43 makes the two rotating drums 41 rotate synchronously through the second synchronous belt 44. The rotating drum 41 rotates and lifts the conveyor belt part of the conveyor belt body 24 through the rotating roller 42, causing the conveyor belt to vibrate.

[0028] Through the above steps, the second guide plate 26 heats the tea leaves while stirring them up, and removes moisture from the surface of the tea leaves by heating, thereby solving the problem that moisture on the surface of the tea leaves sticks to the conveyor belt and affects work efficiency.

Claims

1. A screening and conveying device for processing black tea, comprising a drying box (1) and a hot air blower (22) mounted on the drying box (1), characterized in that: The invention also includes a feed port (21) fixedly connected to the drying box (1), a screening plate (23) fixedly connected to the drying box (1), a support frame (29) fixedly connected to the drying box (1), a conveyor belt body (24) installed between the drying box (1) and the support frame (29), a first connecting rod (25) arranged on the drying box (1), a second guide plate (26) fixedly connected to the first connecting rod (25), a second connecting rod (27) fixedly connected to the second guide plate (26), a rotating disk (28) rotatably connected to the second connecting rod (27), a driving component installed on the drying box (1), a vibrating component installed on the support frame (29), and a collecting box (210) slidably connected to the drying box (1), wherein the driving component drives the second connecting rod (27) to perform a circular motion with the axis of the rotating disk (28) as the midpoint through the rotating disk (28).

2. The screening and conveying equipment for black tea processing according to claim 1, characterized in that: The drying box (1) is provided with a movable groove at a position corresponding to the first connecting rod (25), and the first connecting rod (25) is arranged inside the movable groove.

3. The screening and conveying equipment for black tea processing according to claim 1, characterized in that: The drying box (1) is provided with a through hole having the same size as the rotating disk (28) at a position corresponding to the second connecting rod (27), and the second connecting rod (27) passes through the through hole.

4. The screening and conveying equipment for black tea processing according to claim 1, characterized in that: The driving assembly comprises a driving motor (31) fixedly connected to the drying box (1), a first pulley (32) fixedly connected to the output end of the driving motor (31), a second pulley (33) fixedly connected to the conveyor belt body (24), and a first synchronous belt (34) connected between the first pulley (32) and the second pulley (33). The driving motor (31) causes the conveyor belt body (24) and the rotating disk (28) to move synchronously via the first synchronous belt (34).

5. The screening and conveying equipment for black tea processing according to claim 1, characterized in that: The vibration assembly includes a rotating drum (41) rotatably connected to a support frame (29), a rotating roller (42) rotatably connected to the rotating drum (41), a third pulley (43) fixedly connected to the rotating drum (41), a second synchronous belt (44) transmission-connected to the third pulley (43), a fourth pulley (45) fixedly connected to the rotating drum (41), a fifth pulley (46) fixedly connected to the conveyor belt body (24), and a third synchronous belt (47) transmission-connected between the fourth pulley (45) and the fifth pulley (46), wherein the rotating drum (41) and the conveyor belt body (24) move synchronously.

6. The screening and conveying equipment for black tea processing according to claim 5, characterized in that: The rotating cylinder (41) is provided with a groove at a position corresponding to the rotating roller (42), and the rotating roller (42) is arranged inside the groove, and the rotating roller (42) is in contact with the conveyor belt body (24).

7. The screening and conveying equipment for black tea processing according to claim 5, characterized in that: Two rotating cylinders (41) are provided, and the two rotating cylinders (41) are symmetrically arranged at corresponding positions on the conveyor belt body (24).

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