Tea leaf layered collection screening device for tea leaf processing

Abstract

The invention discloses a tea leaf layered collection screening device for tea leaf processing, and belongs to the field of tea leaf screening. The tea leaf layered collection screening device for tea leaf processing comprises a supporting base, a screening assembly and a cover plate are arranged above the supporting base, the cover plate is installed over the screening assembly, a supporting mechanism is fixedly connected between the supporting base and the screening assembly, one side of the cover plate communicates with a feeding hopper, and the other side of the cover plate communicates with a discharging hopper. The bottom of the supporting base is rotationally connected with a rotating mechanism through a driving piece, and the end of the rotating mechanism penetrates through the interior of the screening assembly. According to the tea leaf screening device, tea leaves can be screened through different screening areas, synchronous multi-stage screening can be conducted on the tea leaves, impurities in the tea leaves can be removed, meanwhile, the impurities on the surfaces of the scattered tea leaves can be cleaned up easily, air blowing work can be conducted on the tea leaves in different areas, and therefore the tea leaves can be screened more conveniently. And the screening effect is prevented from being affected due to the fact that part of tea is not blown in place, and the applicability of the device is further improved.

Description

Technical Field

[0001] This invention relates to the field of tea sieving technology, and more particularly to a sieving device for layered collection of tea leaves in tea processing. Background Technology

[0002] Tea leaves grow very quickly during the picking season and usually need to be picked multiple times. The later picking is usually called bulk tea. Bulk tea often contains tea stems, coarse old leaves and tender tea leaves. After picking, bulk tea needs to go through many processing steps. Mixing tea stems, coarse old leaves and tender tea leaves together will reduce the quality of the finished product.

[0003] For example, in the prior art, Chinese patent authorization number CN211160642U, application date: 2019-12-05, entitled "A Tea Sieving Machine," belongs to the field of tea sieving technology. It includes a frame, a feeding hopper, a sieving box, a screen, and a blower. Two sets of parallel screen fixing plates are obliquely welded between the inner walls of both sides of the sieving box, and symmetrical screen fixing plate grooves are arranged on both sides of the screen fixing plates. A screen pressure plate is bolted to the top of the screen, and symmetrical screen pressure plate clips are arranged on both sides of the screen pressure plate. A first air duct is fixed to the air outlet of the blower via a flange, and the end of the first air duct is connected to a parallel second air duct and a third air duct. The air outlets of the second and third air ducts are respectively fixed to the outer wall of the sieving box at the higher end of the first and second screen fixing planes via flanges. This invention allows for easy screen replacement, prevents tea leaves from clogging the screen, and improves production efficiency.

[0004] However, the aforementioned patents also have shortcomings. Because tea leaves are typically piled together during the sieving process, it's difficult to separate them into different sieving zones, thus preventing simultaneous multi-stage sieving and further reducing the quality of the sieving product. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems in the prior art by proposing a sieving device for layered collection of tea leaves in tea processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sieving device for layered collection of tea leaves in tea processing includes a support base, a sieving component and a cover plate respectively disposed on the upper part of the support base, the cover plate being installed directly above the sieving component, a support mechanism being fixedly connected between the support base and the sieving component, a feed hopper being connected to one side of the cover plate, a rotating mechanism being rotatably connected to the bottom of the support base via a drive component, the end of the rotating mechanism penetrating the interior of the sieving component, and a vibration mechanism being engaged with the drive part of the rotating mechanism to vibrate the sieving component up and down; wherein the rotating mechanism includes a rotating column rotatably connected to the drive component at the bottom of the support base, the end of the rotating column penetrating the interior of the sieving component, a sleeve rod being mounted on the surface of the rotating column, and a cleaning brush being fixedly connected to the bottom of the sleeve rod.

[0008] Preferably, the drive unit of the vibration mechanism is connected to an air blowing mechanism; wherein the air blowing mechanism includes a fan fixed to the top of the support base, the drive unit of the fan is connected to the vibration mechanism, the air outlet of the fan is connected to a connecting hose, the end of the connecting hose is connected to a bellows through a bearing, and the end of the bellows passes through the cover plate and extends to be connected to an air nozzle.

[0009] Preferably, the cover plate is rotatably connected to an adjustment mechanism, the adjustment mechanism including a rotating disk that rotates inside the cover plate, the surface of the rotating disk having a strip groove, an electric slide rail being fixedly connected inside the strip groove, an electric slider being slidably connected to the surface of the electric slide rail, and air nozzles being fixedly connected to both sides of the electric slider.

[0010] Preferably, the rotating disk has a diamond-shaped groove in the middle, and the size of the rotating disk is adapted to the rotating column.

[0011] Preferably, the vibration mechanism includes a support plate fixed to the top of the support base, a rotating shaft connected to the surface of the support plate via a bearing, a cam fixedly connected to one end of the rotating shaft, a fixing plate attached to the surface of the cam, and the fixing plate fixed to the surface of the screening assembly.

[0012] Preferably, the support plate has a second rotating shaft rotatably connected inside via a bearing. One end of both the second rotating shaft and the first rotating shaft is fixedly connected to a gear disk. The surface of the gear disk is rotatably connected via a belt. The other end of the second rotating shaft and the surface of the rotating column are both provided with bevel gears. The surfaces of the two sets of bevel gears are meshed together. The surface of the second rotating shaft is rotatably connected to the drive unit of the support plate via a differential.

[0013] Preferably, the screening assembly includes a collection tray and multiple screening trays, with the multiple screening trays arranged sequentially on top of the collection tray. A discharge port is fixedly connected to one side of both the collection tray and the screening tray. A hollow cylinder is fixedly connected inside both the collection tray and the screening tray, with a rotating column passing through the interior of the hollow cylinder. Multiple filter holes are provided inside the screening tray. A sliding baffle is slidably connected to one side of both the collection tray and the screening tray, with the end of the sliding baffle passing through the discharge port.

[0014] Preferably, the support mechanism includes a support rod fixed to the top of the support base, a sliding block being connected through the surface of the support rod, the sliding block being fixed to the side wall of the collection tray, a support spring being sleeved on the surface of the support rod, and the end of the support spring being fixedly connected to the surface of the sliding block.

[0015] Preferably, the rotating column is composed of a rhombus-shaped column one and a plurality of rhombus-shaped columns two. The end of the rhombus-shaped column one is fixed with a driving component. The top of both the rhombus-shaped column one and the rhombus-shaped column two are fixedly connected with mounting grooves. The bottom of the rhombus-shaped column two is fixedly connected with a mounting block, and the mounting block is installed inside the mounting groove.

[0016] Compared with the prior art, the present invention provides a sieving device for layered collection of tea leaves in tea processing, which has the following beneficial effects:

[0017] 1. This tea stratification and sieving device for tea processing, through the cooperation of a rotating mechanism, a rotating column, a sleeve rod, and a cleaning brush, allows the tea leaves inside the sieving assembly to rotate. This design enables the tea leaves to be sieved through different sieving zones, allowing for simultaneous multi-stage sieving of the tea leaves. It also removes impurities from the tea leaves, prevents the tea leaves from piling up and affecting the sieving effect, and further improves the quality of the sieved tea product.

[0018] 2. This tea stratification and sieving device for tea processing, through the cooperation of a blower, connecting hose, corrugated pipe and air nozzle, can blow air onto the tea during sieving, so as to disperse the tea for better sieving. At the same time, the dispersed tea makes it easier to clean the surface impurities. In addition, the blowing operation can effectively prevent clogging problems during sieving, further improving the efficiency of tea sieving.

[0019] 3. This sieving device for layered tea collection in tea processing, through the cooperation of a rotating disc, electric slide rail, electric slider and diamond groove, can drive the air nozzle to rotate in different positions. Through this setting, air can be blown on tea leaves in different areas, preventing some tea leaves from being blown inadequately and affecting the sieving effect, and further improving the applicability of the device.

[0020] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention can sieve tea leaves through different sieving zones, perform simultaneous multi-stage sieving of tea leaves, remove impurities from the tea leaves, and make it easier to clean the surface impurities of the loosened tea leaves. It can also blow air into the tea leaves in different areas to prevent some tea leaves from being blown inadequately, thus affecting the sieving effect and further improving the applicability of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a sieving device for layered collection of tea leaves in tea processing, as proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the structure of a sieving device for layered collection of tea leaves in tea processing, as proposed in this invention. Figure 2 ;

[0023] Figure 3 This invention proposes a sieving device for layered collection of tea leaves in tea processing. Figure 2 The intention behind enlarging point A in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of a sieving device for layered collection of tea leaves in tea processing, as proposed in this invention. Figure 3 ;

[0025] Figure 5 This is a schematic diagram of the adjustment mechanism of a sieving device for layered collection of tea leaves in tea processing, as proposed in this invention.

[0026] Figure 6 This invention proposes a sieving device for layered collection of tea leaves in tea processing. Figure 2 The intention behind enlarging point B in the middle;

[0027] Figure 7 This is a schematic diagram of the sieving disc structure of a sieving device for layered collection of tea leaves in tea processing, as proposed in this invention.

[0028] Figure 8 This is a top view schematic diagram of a sieving device for layered collection of tea leaves in tea processing, as proposed in this invention.

[0029] In the diagram: 1. Support base; 2. Screening assembly; 21. Collection tray; 22. Screening tray; 23. Discharge port; 24. Hollow cylinder; 25. Filter hole; 26. Sliding baffle; 3. Cover plate; 4. Feed hopper; 5. Rotating mechanism; 51. Rotating column; 511. Rhomboid column one; 512. Rhomboid column two; 513. Mounting groove; 514. Mounting block; 52. Sleeve rod; 53. Cleaning brush; 6. Vibration mechanism; 61. Support plate; 62. 63. Rotating shaft 1; 64. Cam; 65. Fixed plate; 66. Rotating shaft 2; 67. Gear disk; 78. Bevel gear; 79. Air blowing mechanism; 70. Fan; 71. Connecting hose; 72. Corrugated pipe; 73. Air nozzle; 80. Adjusting mechanism; 81. Rotating disk; 82. Strip groove; 83. Electric slide rail; 84. Electric slider; 85. Diamond groove; 91. Support mechanism; 92. Support rod; 93. Sliding block; 94. Support spring. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0032] In one implementation, refer to Figures 1-8A sieving device for layered collection of tea leaves in tea processing includes a support base 1. A sieving component 2 and a cover plate 3 are respectively disposed above the support base 1. The cover plate 3 is installed directly above the sieving component 2. A support mechanism 9 is fixedly connected between the support base 1 and the sieving component 2. A feed hopper 4 is connected to one side of the cover plate 3. A rotating mechanism 5 is rotatably connected to the bottom of the support base 1 via a drive component. The end of the rotating mechanism 5 penetrates the interior of the sieving component 2. A vibration mechanism 6 is engaged with the drive unit of the rotating mechanism 5 to vibrate the sieving component 2 vertically. 5 includes a rotating column 51 rotatably connected to the bottom drive component of the support base 1. The end of the rotating column 51 penetrates the screening assembly 2. A sleeve rod 52 is installed on the surface of the rotating column 51. A cleaning brush 53 is fixedly connected to the bottom of the sleeve rod 52. The rotating column 51 is composed of a rhombus-shaped column 1 511 and multiple rhombus-shaped columns 2 512. The end of the rhombus-shaped column 1 511 is fixed with a drive component. The top of both the rhombus-shaped column 1 511 and the rhombus-shaped column 2 512 is fixedly connected with an installation groove 513. The bottom of the rhombus-shaped column 2 512 is fixedly connected with an installation block 514. The installation block 514 is installed inside the installation groove 513.

[0033] With this approach, when the rotating mechanism 5 is driven, the tea leaves inside the screening component 2 can be screened through different screening zones. This allows for simultaneous multi-stage screening of the tea leaves and the removal of impurities, further improving the quality of the tea leaves after screening.

[0034] The support mechanism 9 at the top of the support base 1 is used to install the screening component 2. Then, the cover plate 3 is installed on the top of the screening component 2. The rotating mechanism 5 drives the vibration mechanism 6 to work synchronously, so that the screening component 2 can vibrate and screen the tea leaves.

[0035] When the rotating mechanism 5 is working, it is first connected to the end of the rotating column 51 through the driving component, and then installed on the surface of the rotating column 51 through the sleeve rod 52, so that the cleaning brush 53 at the bottom of the sleeve rod 52 contacts the inner bottom wall of the screening assembly 2. At this time, when the rotating column 51 rotates, the cleaning brush 53 fixed on the sleeve rod 52 can be rotated respectively, thereby rotating and screening the tea inside the screening assembly 2, thus ensuring the screening effect of the tea.

[0036] Furthermore, with the arrangement of rhomboid column one 511 and rhomboid column two 512, multiple sets of different rhomboid column two 512 can be installed above rhomboid column one 511 to facilitate the assembly of screening components 2 according to different quantities. And through the opening of the mounting groove 513, the mounting block 514 can be installed inside the mounting groove 513 to ensure the firmness between rhomboid column one 511 and rhomboid column two 512.

[0037] To clarify, the driving component is a motor.

[0038] In one implementation, refer to Figure 4 The drive unit of the vibration mechanism 6 is connected to the air blowing mechanism 7; wherein the air blowing mechanism 7 includes a fan 71 fixed on the top of the support base 1, the drive unit of the fan 71 is connected to the vibration mechanism 6, the air outlet end of the fan 71 is connected to a connecting hose 72, the end of the connecting hose 72 is connected to a corrugated pipe 73 through a bearing, and the end of the corrugated pipe 73 passes through the cover plate 3 and extends to be connected to an air nozzle 74.

[0039] With this solution, when the air blowing mechanism 7 is working, it can blow air into the inside of the screening component 2, which can blow air into the tea leaves during screening, so that the tea leaves can be dispersed for better screening. At the same time, the dispersed tea leaves are easier to clean the surface impurities. Also, when blowing air, it can effectively prevent clogging problems during screening.

[0040] When the blowing mechanism 7 is working, it is first driven by the blower 71 to generate gas, and then transported to the inside of the bellows 73 through the connecting hose 72. The gas is then transported to the air nozzle 74 through the bellows 73 and sprayed into the screening component 2.

[0041] As a supplementary explanation, the connecting hose 72 and the bellows 73 are connected by a bearing, so that when the bellows 73 rotates, it will not rotate the connecting hose 72 synchronously, thereby avoiding the problem of the connecting hose 72 getting tangled.

[0042] In one implementation, refer to Figure 5 An adjustment mechanism 8 is rotatably connected inside the cover plate 3. The adjustment mechanism 8 includes a rotating disk 81 that rotates inside the cover plate 3. A strip groove 82 is provided on the surface of the rotating disk 81. An electric slide rail 83 is fixedly connected inside the strip groove 82. An electric slider 84 is slidably connected on the surface of the electric slide rail 83. Air nozzles 74 are fixedly connected on both sides of the electric slider 84. A diamond groove 85 is provided in the middle of the rotating disk 81. The size of the rotating disk 81 is adapted to the rotating column 51.

[0043] By adopting this scheme, the drive of the adjustment mechanism 8 can be used to move the air nozzle 74 so as to blow air to different positions inside the screening component 2, and prevent the air nozzle 74 from blowing air to the same position.

[0044] When the adjustment mechanism 8 is working, it first passes through the diamond-shaped groove 85 in the middle of the rotating disk 81 to the surface of the rotating column 51. Since the air nozzle 74 is installed on both sides of the electric slider 84, it can move the electric slider 84 laterally under the drive of the electric slide rail 83 inside the strip groove 82, so that the air nozzle 74 can blow air laterally. At the same time, the rotating column 51 rotates, which drives the rotating disk 81 to rotate. The rotating disk 81 rotates and the air nozzle 74 rotates, so that the rotating disk 81 can rotate and blow air, so that air can be blown to different positions inside the screening component 2.

[0045] In one implementation, refer to Figure 3 The vibration mechanism 6 includes a support plate 61 fixed to the top of the support base 1. A rotating shaft 62 is rotatably connected to the surface of the support plate 61 via a bearing. A cam 63 is fixedly connected to one end of the rotating shaft 62. A fixing plate 64 is attached to the surface of the cam 63. The fixing plate 64 is fixed to the surface of the screening assembly 2. A rotating shaft 65 is rotatably connected to the inside of the support plate 61 via a bearing. A gear disk 66 is fixedly connected to one end of both the rotating shaft 65 and the rotating shaft 62. The surface of the gear disk 66 is rotatably connected via a belt. A bevel gear 67 is provided on the other end of the rotating shaft 65 and the surface of the rotating column 51. The surfaces of the two sets of bevel gears 67 are meshed. The surface of the rotating shaft 65 is rotatably connected to the drive part of the support plate 61 via a differential. The support mechanism 9 includes a support rod 91 fixed to the top of the support base 1. A sliding block 92 is connected through the surface of the support rod 91. The sliding block 92 is fixed to the side wall of the collecting tray 21. A support spring 93 is sleeved on the surface of the support rod 91. The end of the support spring 93 is fixedly connected to the surface of the sliding block 92.

[0046] With this scheme, the support plate 61 can support the first rotating shaft 62 and the second rotating shaft 65 respectively. When the first rotating shaft 62 rotates, the cam 63 at the end can rotate synchronously. Since the surface of the cam 63 is in contact with the surface of the fixed plate 64, the fixed plate 64 can be adjusted up and down. With the support of the support mechanism 9, the screening component 2 can be vibrated to facilitate the vibration screening of the tea leaves in the screening component 2.

[0047] In practical use, the rotating column 51 drives the bevel gear 67 to rotate. When the bevel gear 67 rotates, it will synchronously drive another set of meshing bevel gears 67 to rotate. Since the bevel gear 67 is fixed to the end of the rotating shaft 65, it can synchronously drive the rotating shaft 65 to rotate. When the rotating shaft 65 rotates, it will rotate the gear disk 66. Since there are two sets of gear disks 66 and the two sets of gear disks 66 are connected by a belt, when one set of gear disks 66 rotates, it will synchronously drive the other set of gear disks 66 to rotate. Since the other set of gear disks 66 is fixed to the end of the rotating shaft 62, it can synchronously drive the rotating shaft 62 to rotate. When the rotating shaft 62 rotates, it will synchronously drive the cam 63 to rotate. When the cam 63 rotates, it will synchronously drive the screening component 2 fixed to the cam 63 to move up and down. Then, through the characteristics of the support mechanism 9, it can make the screening component 2 vibrate up and down.

[0048] When the support mechanism 9 is working, the support rod 91 passes through the inside of the sliding block 92, and then the support spring 93 is used to support the sliding block 92. When the screening component 2 is adjusted downward, the spring force of the support spring 93 will quickly reset the screening component 2 so that the screening component 2 can vibrate up and down.

[0049] As a supplementary explanation, a differential is provided on the surface of the rotating shaft 65. Under the action of the differential, the rotation speed of the rotating shaft 65 can be increased to facilitate the rotation of the fan 71.

[0050] In one implementation, refer to Figure 7 The screening assembly 2 includes a collection tray 21 and multiple screening trays 22. The multiple screening trays 22 are arranged sequentially on top of the collection tray 21. A discharge port 23 is fixedly connected to one side of both the collection tray 21 and the screening tray 22. A hollow cylinder 24 is fixedly connected inside both the collection tray 21 and the screening tray 22. A rotating column 51 passes through the inside of the hollow cylinder 24. Multiple filter holes 25 are opened inside the screening tray 22. A sliding baffle 26 is slidably connected to one side of both the collection tray 21 and the screening tray 22. The end of the sliding baffle 26 passes through the discharge port 23.

[0051] By adopting this scheme, the collection plate 21 and multiple sets of screening plates 22 are set up so that multiple screening plates 22 can be stacked one after another, and then the cover plate 3 is installed on the top of the screening plate 22 for sealing, so as to facilitate the layered screening of tea leaves of different sizes.

[0052] In practical use, since the screening component 2 is in a vibrating state, when the tea leaves enter the screening disc 22, the top screening disc 22 initially screens the tea leaves, causing those smaller than the size of the filter holes 25 to fall directly into the lower screening disc 22, while the tea leaves larger than the filter holes 25 will enter the discharge port 23 for discharge and collection. Since the size of the filter holes 25 inside the screening disc 22 decreases from top to bottom, it can screen tea leaves of different sizes in layers. In this way, tea leaves of different sizes are screened out. Finally, the powdery tea leaves and impurities fall into the bottom collection disc 21 for collection and are discharged through the discharge port 23. With the setting of the sliding baffle 26, the opening and closing of the collection disc 21 and the screening disc 22 can be controlled, thereby controlling the flow rate of tea leaves.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sieving device for layered collection of tea leaves in tea processing, comprising a support base (1), characterized in that, A screening component (2) and a cover plate (3) are respectively arranged above the support base (1). The cover plate (3) is installed directly above the screening component (2). A support mechanism (9) is fixedly connected between the support base (1) and the screening component (2). A feed hopper (4) is connected to one side of the cover plate (3). The bottom of the support base (1) is rotatably connected to a rotating mechanism (5) through a drive component. The end of the rotating mechanism (5) penetrates the interior of the screening component (2). The drive part of the rotating mechanism (5) is meshed with a vibration mechanism (6). The vibration mechanism (6) is used to vibrate the screening component (2) up and down. The rotating mechanism (5) includes a rotating column (51) rotatably connected to the bottom drive of the support base (1). The end of the rotating column (51) passes through the screening assembly (2). A sleeve rod (52) is installed on the surface of the rotating column (51). A cleaning brush (53) is fixedly connected to the bottom of the sleeve rod (52).

2. A sieving device for layered collection of tea leaves in tea processing according to claim 1, characterized in that, The driving part of the vibration mechanism (6) is connected to the air blowing mechanism (7); The blowing mechanism (7) includes a fan (71) fixed on the top of the support base (1). The drive part of the fan (71) is connected to the vibration mechanism (6). The air outlet of the fan (71) is connected to a connecting hose (72). The end of the connecting hose (72) is connected to a bellows (73) through a bearing. The end of the bellows (73) passes through the cover plate (3) and extends to be connected to an air nozzle (74).

3. A sieving device for layered collection of tea leaves in tea processing according to claim 2, characterized in that, An adjustment mechanism (8) is rotatably connected inside the cover plate (3). The adjustment mechanism (8) includes a rotating disk (81) that rotates inside the cover plate (3). A strip groove (82) is provided on the surface of the rotating disk (81). An electric slide rail (83) is fixedly connected inside the strip groove (82). An electric slider (84) is slidably connected to the surface of the electric slide rail (83). Air nozzles (74) are fixedly connected to both sides of the electric slider (84).

4. A sieving device for layered collection of tea leaves in tea processing according to claim 3, characterized in that, The rotating disk (81) has a diamond-shaped groove (85) in the middle, and the size of the rotating disk (81) is adapted to the rotating column (51).

5. A sieving device for layered collection of tea leaves in tea processing according to claim 1, characterized in that, The vibration mechanism (6) includes a support plate (61) fixed to the top of the support base (1). The surface of the support plate (61) is rotatably connected to a rotating shaft (62) via a bearing. One end of the rotating shaft (62) is fixedly connected to a cam (63). The surface of the cam (63) is fitted with a fixing plate (64). The fixing plate (64) is fixed to the surface of the screening assembly (2).

6. A sieving device for layered collection of tea leaves in tea processing according to claim 5, characterized in that, The support plate (61) is rotatably connected to a second rotating shaft (65) via a bearing. One end of the second rotating shaft (65) and the first rotating shaft (62) are both fixedly connected to a gear disk (66). The surface of the gear disk (66) is rotatably connected via a belt. The other end of the second rotating shaft (65) and the surface of the rotating column (51) are both provided with bevel gears (67). The surfaces of the two sets of bevel gears (67) are meshed together. The surface of the second rotating shaft (65) is rotatably connected to the drive part of the support plate (61) via a differential.

7. A sieving device for layered collection of tea leaves in tea processing according to claim 1, characterized in that, The screening assembly (2) includes a collection tray (21) and multiple screening trays (22). The multiple screening trays (22) are arranged sequentially on the top of the collection tray (21). A discharge port (23) is fixedly connected to one side of both the collection tray (21) and the screening tray (22). A hollow cylinder (24) is fixedly connected inside both the collection tray (21) and the screening tray (22). A rotating column (51) passes through the inside of the hollow cylinder (24). Multiple filter holes (25) are opened inside the screening tray (22). A sliding baffle (26) is slidably connected to one side of both the collection tray (21) and the screening tray (22). The end of the sliding baffle (26) passes through the discharge port (23).

8. A sieving device for layered collection of tea leaves in tea processing according to claim 1, characterized in that, The support mechanism (9) includes a support rod (91) fixed to the top of the support base (1), a sliding block (92) is connected through the surface of the support rod (91), the sliding block (92) is fixed to the side wall of the collection tray (21), a support spring (93) is sleeved on the surface of the support rod (91), and the end of the support spring (93) is fixedly connected to the surface of the sliding block (92).

9. A sieving device for layered collection of tea leaves in tea processing according to claim 1, characterized in that, The rotating column (51) is composed of a rhombus-shaped column one (511) and a plurality of rhombus-shaped columns two (512). The end of the rhombus-shaped column one (511) is fixed with a driving component. The top of the rhombus-shaped column one (511) and the rhombus-shaped column two (512) are both fixedly connected with mounting grooves (513). The bottom of the rhombus-shaped column two (512) is fixedly connected with a mounting block (514). The mounting block (514) is installed inside the mounting groove (513).

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