Machine-picked fresh famous and high-quality tea automatic uniformizing and sorting device and method

Abstract

The invention relates to the field of tea leaf sorting, in particular to an automatic uniformizing and sorting device and method for machine-picked fresh famous and high-quality tea, which comprises a bottom plate and support frames, rectangular covers are arranged at the upper ends of the support frames, visual sorting devices and blowing assemblies are mounted in the rectangular covers, and a first conveyor belt and a second conveyor belt are arranged between the support frames; two conveying devices corresponding to the first conveying belt and the second conveying belt respectively are arranged on the bottom plate, winnowing assemblies are arranged on the conveying devices, the conveying device on one side conveys tea leaves to the first conveying belt, the winnowing assemblies winnow broken leaf impurities in the tea leaves, and conveying speed difference exists between the conveying devices and the first conveying belt. After the tea leaves are conveyed down from the conveying device, the first conveying belt quickly takes away the tea leaves to prevent the tea leaves from being excessively stacked on one side of the first conveying belt, and the visual sorting device divides the tea leaves into different tea leaves and discharges the different tea leaves through the second conveying belt. The conveying device on one side receives famous and high-quality tea and winnows broken leaves in the famous and high-quality tea through the corresponding winnowing assembly.

Description

Technical Field

[0001] The present invention relates to the field of tea sorting, and particularly to an automatic leaf leveling and sorting device and method for famous and high-quality tea from machine-picked fresh tea leaves. Background Art

[0002] Tea can be classified into famous and high-quality tea and bulk tea according to its popularity. Among them, bulk tea refers to ordinary tea with low popularity, which has no special requirements for production raw materials and can be mechanically picked by reciprocating cutting or the like. Even if it is mixed with a large amount of old leaves, old stems and broken leaves, it does not affect its production and processing. Its price is relatively cheap and it is suitable for large-scale production. Famous and high-quality tea refers to high-quality tea with high popularity. Its production raw materials are required to be single buds, one bud with one leaf or one bud with two leaves. Therefore, it is all picked manually, with low picking efficiency, a large amount of labor, high sales price and is not suitable for large-scale production. In recent years, mechanical picking of fresh tea leaves has been widely welcomed by many tea farmers because it can significantly reduce the picking cost and labor intensity and effectively solve problems such as insufficient picking workers. Compared with manual tea picking, although machine-picked tea has high efficiency, the bud leaves are broken, of uneven length, uneven in maturity, and have a high stem content, and the quality of the fresh leaves is much lower than that of manual picking. Under the existing technical mode, it cannot be processed into famous and high-quality tea with higher benefits. Improving the yield and quality of famous and high-quality tea through sorting of fresh tea leaves will be of great significance to tea production.

[0003] In the tea processing industry, the role of tea sorting is to classify tea of different qualities according to the appearance characteristics of tea, such as size, shape, color, etc., and remove the broken leaves mixed in, so as to meet different market demands and improve the commercial value of tea. The traditional manual sorting method of tea is not only inefficient, but also difficult to ensure the accuracy and stability of sorting due to the subjectivity of manual judgment. The existing mechanical sorting methods of tea, such as drum graders, vibrating sieves, and vertical air separators, are mainly used for sorting fresh leaves of famous and high-quality tea. Although they can greatly reduce the labor, the sorting accuracy is poor and they cannot reach the level of popularization and application. Moreover, they generally have problems such as blockage, leaf hanging, and damage. At the same time, these traditional methods have a low degree of intelligence, are difficult to accurately distinguish the subtle differences in tea quality, and cannot meet the sorting requirements of machine-picked fresh tea leaves.

[0004] Some technologies introduce visual sensors for tea sorting, but in actual applications, this method faces the problem of tea and dust blocking the sensors. During the sorting process, the turning of the tea will raise dust, and the tea itself is also easy to adhere to the surface of the sensors, which will interfere with the sensors' recognition of tea characteristics, resulting in deviation of the sorting results and reducing the reliability of the equipment and the sorting effect.

[0005] In the prior art, for example, the patent with publication number CN110270497A discloses a tea sorting machine, which includes a frame, a central bearing, a plurality of filter cartridges and other components. The basic principle is to drive the filter cartridge to rotate through the central bearing, and use the filter holes on different filter cartridges that are evenly distributed and successively reduced to screen the tea leaves. The tea leaves enter the first filter cartridge from the feed inlet, the larger leaves remain in the first filter cartridge, the smaller leaves and tea residue enter the second filter cartridge, and the smaller leaves and tea residue enter the third filter cartridge. The tea residue is finally discharged from the broken tea outlet, thus realizing the preliminary classification of tea leaves according to leaf size; however, although this technology has improved some of the original problems, there are still aspects that need to be further optimized to better meet actual detection needs.

[0006] 1. The sorting accuracy of the above-mentioned sorting machine is limited; the sorting machine only screens according to the leaf size, and cannot identify the subtle differences in the color and shape of the tea leaves. It is difficult to distinguish the tiny broken leaves in the tea leaves, such as hair and grass clippings mixed in. This makes it possible that the quality of the sorted tea leaves may still be uneven, and it cannot meet the requirements of the high-end tea market for refined sorting.

[0007] 2. The above-mentioned sorting machine can only realize the basic classification function of separating tea leaves by leaf size and tea residue, and cannot perform operations such as color sorting and material sorting on tea leaves. In actual tea production, the color and material characteristics of different varieties of tea are also important sorting bases, and this sorting machine cannot meet the sorting needs of all categories and all scenarios of tea varieties.

[0008] Therefore, based on the above-stated viewpoint, there is still room for optimization in the existing technology for sorting tea leaves. Summary of the invention

[0009] In order to solve the above problems, the present invention provides an automatic uniform leaf sorting device for machine-picked fresh tea leaves and high-quality teas, comprising a base plate and a support frame, a rectangular cover is arranged on the upper end of the support frame, a visual sorting device is arranged inside the rectangular cover, a blowing assembly for sorting tea leaves is also arranged inside the rectangular cover, and a conveyor belt is arranged between the support frames, one side of which is located at the lower end of the rectangular cover.

[0010] And three conveyor belts 2 corresponding to the visual sorting devices are arranged between the support frames.

[0011] Two conveying devices are arranged on the bottom plate, and one side of one conveying device corresponds to one side of conveyor belt one, and one side of the other conveying device corresponds to one side of conveyor belt two. A wind selection component for selecting broken leaves in tea is also arranged on one side of the conveying device.

[0012] Preferably, a rotating shaft is rotatably mounted on the conveying device, and a plurality of shifting shafts distributed along the axis and the extension section thereof are mounted on the outer side of the rotating shaft.

[0013] Preferably, the visual sorting device includes a triangular frame disposed inside a rectangular cover. A plurality of sliding shafts are slidably inserted through the triangular frame. A mounting plate is disposed between two sliding shafts. A camera is mounted on the mounting plate, and the imaging port of the camera faces one side of the second conveyor belt.

[0014] Preferably, a support frame plate is further disposed between the rectangular covers. A transparent plate corresponding to the imaging end of the camera is disposed on the support frame plate, and a lighting strip is further disposed inside the support frame plate.

[0015] Preferably, the blowing assembly includes support plates disposed on both sides of the rectangular cover. A first blowing device and a second blowing device are disposed between the support plates. A plurality of air holes are formed on one side of each of the first blowing device and the second blowing device and are distributed along their extension sections.

[0016] Preferably, a sorting assembly is disposed on the support frame. The sorting assembly includes three discharge frames mounted between the support frames, and the ports at the bottoms of the three discharge frames respectively correspond to the three second conveyor belts.

[0017] Preferably, the air holes of the first blowing device correspond to the discharge frame on one side, and the air holes of the second blowing device correspond to the discharge frame in the middle.

[0018] Preferably, the air separation assembly includes a bent cover disposed on one side of the conveying device. A bent plate is disposed inside the bent cover, and two discharge slots are formed by the gaps between the two ends of the bent plate and the inner wall of the bent cover.

[0019] Preferably, a horizontal plate is disposed on one side of the bent cover. An air outlet cover is disposed on the horizontal plate. The port of the air outlet cover faces the inner discharge slot, and a connection port is disposed on the other side of the air outlet cover. A discrete shaft is rotatably disposed at the bent portion of the bent plate.

[0020] In addition, the present invention also provides an automatic leaf sorting method for machine-picked fresh tea leaves of famous and high-quality teas, including the following steps: S1, primary tea selection: Pour the tea leaves onto the conveying device on one side. Part of the broken tea leaves in the tea leaves are blown out through the air separation assembly. The finally remaining tea leaves will fall onto the first conveyor belt. The conveying speed of the conveying device is faster than that of the first conveyor belt. When the tea leaves fall onto the first conveyor belt, the first conveyor belt quickly takes the tea leaves away to prevent the subsequent sorting process from being unable to accurately distinguish the types of tea leaves due to the accumulation of tea leaves.

[0021] S2, visual detection: The first conveyor belt transports the tea leaves under the rectangular cover, and the visual sorting device is started to detect the color, size and shape of the tea leaves.

[0022] S3, type screening: Finally, the visual sorting device sequentially divides the tea leaves into broken tea leaves, bulk tea and famous and high-quality teas, and sorts out the above three types of tea leaves through the blowing assembly.

[0023] S4, tea leaves are removed: the sorted broken leaves, bulk tea and premium tea will fall onto the corresponding three conveyor belts 2 respectively, and the conveyor belts 2 will remove the corresponding tea leaves from the device.

[0024] S5, wind selection of high-quality tea: After the conveyor belt 2 on one side conveys the high-quality tea to the corresponding conveying device, the high-quality tea is subjected to secondary wind selection through the corresponding wind selection component to wind-select the high-quality tea and the mixed broken leaves inside.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention integrates the processes of tea preliminary selection, visual inspection, type screening and removal by setting up structures such as a conveying device, a wind selection component, a visual sorting device and a blowing component, thereby realizing automatic uniform leaf sorting of machine-picked fresh tea leaves, greatly improving the tea sorting efficiency and reducing labor costs. 2. The present invention uses the coordination of the camera, transparent plate and lighting strip in the visual sorting device, as well as the precise blowing and screening of different types of tea by the blowing component. It can accurately distinguish between broken leaves, bulk tea and high-quality tea based on the color, size, shape and other characteristics of the tea leaves, thereby ensuring the accuracy of sorting. 3. The present invention uses a linkage design between the wiping component and the driving component to automatically clean the dust on the transparent plate and the lighting strip during the sorting process, avoiding the interference of dust on visual detection, and at the same time realizing the automatic operation of the camera position adjustment and the wiping component, further improving the stability and automation level of the device operation.

[0026] Fourth, there is a difference in transmission speed between the transmission device and the conveyor belt 1 in the present invention. After the tea leaves are transmitted from the transmission device, the conveyor belt 1 quickly takes the tea leaves away to prevent excessive accumulation of tea leaves on one side of the conveyor belt 1, thereby avoiding the problem of being unable to accurately distinguish the types of tea leaves in the subsequent sorting process due to the accumulation of tea leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the main body of the present invention.

[0029] Figure 2 It is a cross-sectional view of the rectangular cover of the present invention.

[0030] Figure 3 It is a structural schematic diagram of the shifting shaft of the present invention.

[0031] Figure 4 It is a schematic diagram of the structure of the visual sorting device of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the blowing assembly of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the sorting component of the present invention.

[0034] Figure 7 It is a planar coordination diagram of the visual sorting device, the blowing assembly and the sorting assembly of the present invention.

[0035] Figure 8 It is a structural schematic diagram of the air selection component of the present invention.

[0036] Figure 9 It is a structural schematic diagram of the wiping component of the present invention.

[0037] Figure 10 It is a structural schematic diagram of the wiping component of the present invention from another viewing angle.

[0038] Figure 11 It is a schematic diagram of the structure of the drive assembly of the present invention.

[0039] Figure 12 The present invention Figure 11 A partial enlarged view of the structure at point A.

[0040] In the figure: 1, bottom plate; 10, support frame; 11, rectangular cover; 12, conveyor belt 1; 13, conveyor belt 2; 14, conveying device; 15, rotating shaft; 16, toggle shaft; 2, visual sorting device; 20, triangular frame; 21, sliding shaft; 22, mounting plate; 23, camera; 24, support frame plate; 25, transparent plate; 26, lighting strip; 3, blowing assembly; 30, support plate; 31, first blowing device; 32, second blowing device; 33, air hole; 4, sorting assembly ;40. Discharge frame;5. Air separation assembly;50. Bending cover;51. Bending plate;52. Discharge trough;53. Horizontal plate;54. Air outlet cover;55. Discrete shaft;6. Wiping assembly;60. Limit block;61. Rotating screw;62. Bending frame;63. Wiping ring;7. Driving assembly;70. Connecting plate;71. Dual-axis motor;72. Driving screw;73. Spring shaft;74. Gear transmission box;75. Hexagonal cylinder;76. Hexagonal block;77. Push plate;78. Passive ring. DETAILED DESCRIPTION

[0041] The following combination Figures 1 to 12 Embodiments of the present invention are described in detail.

[0042] The embodiment of the present application discloses an automatic leaf - leveling and sorting device and method for high - quality machine - picked tea fresh leaves. The present application is applied in the sorting and processing of machine - picked tea fresh leaves, which can automatically level the machine - picked tea fresh leaves, and accurately distinguish broken leaves, bulk tea, and high - quality tea in the tea through a combination of visual detection and various screening components. Moreover, the present application can also effectively clean the dust interference generated during the visual sorting process by setting a wiping component and a driving component, ensure the detection accuracy, and realize the high - efficiency and automation of the sorting of machine - picked tea fresh leaves.

[0043] Embodiment 1: Refer to Figure 1 and Figure 2 As shown, it includes a bottom plate 1, a support frame 10, a rectangular cover 11, a visual sorting device 2, a blowing component 3, a conveyor belt 12, a conveyor belt 13, a conveying device 14, and a wind - selection component 5. Support frames 10 are symmetrically arranged on the bottom plate 1. A rectangular cover 11 is arranged at the upper end of the support frames 10. A visual sorting device 2 is arranged inside the rectangular cover 11. The support frames 10 support the rectangular cover 11, and covers are hinged on both sides of the rectangular cover 11, providing a space for the visual sorting device 2 to take pictures and detect the tea leaves, and preventing external light from affecting the visual sorting device 2.

[0044] A blowing component 3 for sorting out the tea leaves is also arranged inside the rectangular cover 11, and a conveyor belt 12 with one side located at the lower end of the rectangular cover 11 is arranged between the support frames 10.

[0045] Three conveyor belts 13 corresponding to the visual sorting device 2 are arranged between the support frames 10.

[0046] Two conveying devices 14 are arranged on the bottom plate 1. One side of one conveying device 14 corresponds to one side of the conveyor belt 12, and one side of the other conveying device 14 corresponds to one side of the conveyor belt 13. A wind - selection component 5 for picking out broken leaves in the tea leaves is also arranged on one side of the conveying device 14.

[0047] In addition, the present invention also provides an automatic leaf - leveling and sorting method for high - quality machine - picked tea fresh leaves, including the following steps: S1, Primary tea selection: Pour the tea leaves onto the conveying device 14 on one side. Part of the broken leaves in the tea leaves are blown out by the wind - selection component 5. The remaining tea leaves will finally fall onto the conveyor belt 12. And the conveying speed of the conveying device 14 is faster than that of the conveyor belt 12. When the tea leaves fall onto the conveyor belt 12, the conveyor belt 12 quickly takes the tea leaves away, avoiding the inability to accurately distinguish the types of tea leaves during the subsequent sorting process due to the accumulation of tea leaves.

[0048] S2, Visual detection: The conveyor belt 12 transports the tea leaves under the rectangular cover 11, and the visual sorting device 2 is started to detect the color, size, and shape of the tea leaves.

[0049] S3, type screening: Finally, the visual sorting device 2 classifies the tea leaves into broken leaves, bulk tea and premium tea in turn, and sorts out the three types of tea leaves through the blowing component 3.

[0050] S4, tea leaves are removed: the selected broken leaves, bulk tea and premium tea will fall onto the corresponding three conveyor belts 2 13 respectively, and the conveyor belts 2 13 will remove the corresponding tea leaves from the device.

[0051] S5, wind selection of high-quality tea: after the conveyor belt 2 13 on one side conveys the high-quality tea to the corresponding conveying device 14, the high-quality tea is subjected to secondary wind selection through the corresponding wind selection component 5, and the high-quality tea and broken leaves are wind selected.

[0052] Reference Figure 3 As shown, specifically, it includes a rotating shaft 15 and a toggle shaft 16. The rotating shaft 15 is rotatably installed on the conveying device 14. Several toggle shafts 16 distributed along its axis and extension section are installed on the outer side of the rotating shaft 15, and the toggle shaft 16 is connected to the driving shaft on the conveying device 14 through a belt transmission. After the tea leaves are poured into the conveyor belt of the conveying device 14, the conveying device 14 drives the tea leaves to move forward. In this process, the rotating shaft 15 installed on the conveying device 14 is rotatable, which will drive the multiple toggle shafts 16 distributed along the axis and extension section on the outer side to swing synchronously. The toggle shaft 16 is connected to the driving shaft on the conveying device 14 through a belt transmission. Its swing can disperse the accumulated tea leaves and make the tea leaves flat.

[0053] In this way, when the tea leaves fall from one side of the conveyor 14, they will fall in a discontinuous state rather than in piles, and there is a speed difference between the conveyor 14 and the conveyor belt 12. For example, the conveyor 14 rotates at a speed of 2 mm / s, and the conveyor belt 12 rotates at a speed of 10 mm / s. The differential transmission principle is utilized to prevent excessive accumulation of tea leaves on one side of the conveyor belt 12, thereby avoiding the problem of being unable to accurately distinguish the types of tea leaves during the subsequent sorting process due to the accumulation of tea leaves.

[0054] Reference Figure 4As shown, it is the visual sorting device 2 for monitoring tea varieties; specifically, the visual sorting device 2 includes a triangular frame 20, a sliding shaft 21, a mounting plate 22, a camera 23, a support frame plate 24, a transparent plate 25, and a lighting strip 26. The triangular frame 20 is arranged inside the rectangular cover 11. Several sliding shafts 21 are slidably penetrated through the triangular frame 20. A mounting plate 22 is arranged between two sliding shafts 21. The camera 23 is mounted on the mounting plate 22, and the imaging port of the camera 23 faces one side of the conveyor belt two 13. That is, when the sliding shaft 21 is driven by an external force, it can drive the camera 23 to move synchronously through the mounting plate 22, adjust the distance of the camera 23, so that the port of the camera 23 can correspond to one side of the conveyor belt one 12. The tea leaves are conveyed out from one side of the conveying device 14 and can fall on the conveyor belt one 12. Then, the conveyor belt one 12 continues to drive the tea leaves to move towards the direction of the rectangular cover 11. Then, the camera 23 will image the tea leaves on the conveyor belt one 12 and classify them through algorithm recognition, so as to know the tea varieties at each position on the conveyor belt one 12.

[0055] A support frame plate 24 is also arranged between the rectangular covers 11. A transparent plate 25 corresponding to the imaging end of the camera 23 is arranged on the support frame plate 24. And a lighting strip 26 is arranged inside the support frame plate 24. The support frame plate 24 is used to support the transparent plate 25. The camera 23 can monitor the tea leaves on the conveyor belt one 12 through the transparent plate 25. And the transparent plate 25 can block dust. The lighting strip 26 is used to provide light source, to prevent the camera 23 from being unable to accurately identify the tea varieties on the conveyor belt one 12 due to low ambient light source. And in this implementation process, the camera 23 can sort the tea leaves into broken leaves, tea leaves with unqualified color and size, bulk tea, and famous and high-quality tea.

[0056] Refer to Figure 5 As shown, it is the blowing component 3 for sorting different kinds of tea leaves; specifically, the blowing component 3 includes a support plate 30, a first blowing device 31, a second blowing device 32, and air holes 33. Two support plates 30 are respectively arranged on both sides of the rectangular cover 11. A first blowing device 31 and a second blowing device 32 are arranged between the support plates 30. Several air holes 33 distributed along their extension sections are opened on one side of the first blowing device 31 and the second blowing device 32.

[0057] That is, the first blowing device 31 and the second blowing device 32 can blow high-pressure gas through the air holes 33, and each air hole 33 is controlled separately. The diameter of the air hole 33 is between 2 mm and 6 mm, and the interval between the air holes 33 is between 5 mm and 10 mm. When the tea leaves fall from one side of the conveyor belt 12, when the image recognition algorithm detects the type of tea leaves, the first blowing device 31 or the second blowing device 32 on the corresponding trajectory can blow out high-pressure air through the air holes 33, so that the falling trajectory of the tea leaves is changed and they fall onto the corresponding conveyor belt 13 for collection.

[0058] And one side of the first blowing device 31 and the second blowing device 32 can be connected to a high-pressure air pump. The high-pressure air pump is a well-known technology, and the high-pressure air pump provides high-pressure gas for the first blowing device 31 and the second blowing device 32.

[0059] Refer to Figure 6 and Figure 7 As shown, in order to receive the corresponding type of tea leaves and convey them to the corresponding conveyor belt 13, a sorting component 4 is provided on the support frame 10. Specifically, the sorting component 4 includes a discharge frame 40. Three discharge frames 40 are installed between the support frames 10, and the ports below the three discharge frames 40 respectively correspond to the three conveyor belts 13.

[0060] The air holes 33 of the first blowing device 31 correspond to the discharge frame 40 on one side, and the air holes 33 of the second blowing device 32 correspond to the discharge frame 40 in the middle.

[0061] That is, when the tea leaves fall, at this time, the type of the fallen tea leaves is recognized by the camera 23 and the image recognition algorithm. If the fallen tea leaves are broken leaves at this time, the first blowing device 31 is started to blow out high-pressure gas through the air holes 33 corresponding to the fallen broken leaves, so that the broken leaves are blown into the discharge frame 40 on one side, and then fall onto the lower conveyor belt 13 through the corresponding discharge frame 40 and move out of the device.

[0062] Similarly, if it is bulk tea, the second blowing device 32 is started to blow the bulk tea through the corresponding air holes 33, and the bulk tea can be blown into the discharge frame 40 in the middle, and then discharged from the device through the corresponding conveyor belt 13.

[0063] Finally, if the fallen tea leaves are famous-quality tea, at this time, neither the first blowing device 31 nor the second blowing device 32 is started, so that the famous-quality tea can slide down by itself, and the upper opening of the discharge frame 40 on the other side corresponds to the falling trajectory of the famous-quality tea. Finally, the famous-quality tea will fall into the corresponding discharge frame 40 and be discharged from the device through the corresponding conveyor belt 13.

[0064] Refer to Figure 8As shown, it is the air separation component 5 for sorting out broken leaves in tea leaves; specifically, the air separation component 5 includes a bent cover 50, a bent plate 51, a discharge chute 52, a horizontal plate 53, an air outlet cover 54, and a discrete shaft 55. The bent cover 50 is arranged on one side of the conveying device 14. A bent plate 51 is arranged inside the bent cover 50. The gaps between the two ends of the bent plate 51 and the inner wall of the bent cover 50 form two discharge chutes 52. That is, when the tea leaves move out through the conveying device 14, they will enter the bent cover 50. In the initial situation, the tea leaves will fall on the bent plate 51 and finally fall on the second conveyor belt 13 through the inclined surface of the bent plate 51 and the discharge chute 52 on one side.

[0065] A horizontal plate 53 is also arranged on one side of the bent cover 50. An air outlet cover 54 is arranged on the horizontal plate 53. The port of the air outlet cover 54 faces the inner discharge chute 52. And a connection port is arranged on the other side of the air outlet cover 54. The horizontal plate 53 is used to support the air outlet cover 54. And the connection port on one side of the air outlet cover 54 is used to connect with an external air supply device. The external air supply device blows air into the bent cover 50 through the air outlet cover 54. And there are broken tea leaves inside the tea leaves, whose size and weight are lighter than those of ordinary tea leaves. That is, during the falling process of the tea leaves, the air blown out by the air outlet cover 54 can blow the broken tea leaves in the tea leaves to the other inclined surface of the bent plate 51 and finally discharge them through the discharge chute 52 on the other side, while the ordinary tea leaves will not be affected by the air and will normally fall on the first conveyor belt 12.

[0066] That is, when the famous and high-quality tea moves out from one end of the corresponding second conveyor belt 13, it will fall on the corresponding conveying device 14. According to the above implementation process, the air outlet cover 54 blows air to conduct secondary air separation on the famous and high-quality tea. During this process, the wind speed of the air outlet cover 54 is adjusted so that the wind speed can separate the broken leaf impurities in the famous and high-quality tea. Finally, the famous and high-quality tea after secondary air separation can be discharged from the discharge chute 52 on one side.

[0067] And a discrete shaft 55 is rotatably arranged at the bent part of the bent plate 51. The discrete shaft 55 can be driven by an external driving device to rotate at the bent part of the bent plate 51. That is, after the tea leaves fall at the bent part of the bent plate 51, at this time, the discrete shaft 55 can rotate to drive the tea leaves to fall, avoiding the tea leaves from accumulating at the bent part of the bent plate 51.

[0068] Embodiment 2: Refer to Figure 9 and Figure 10As shown, on the basis of the first embodiment, the second conveyor belt 13 will also drive some dust to float when conveying tea leaves, and the dust will adhere to the transparent plate 25. In order to clean the dust adhering to the transparent plate 25, a wiping assembly 6 is provided on the support frame plate 24; specifically, the wiping assembly 6 includes a limit block 60, a rotating lead screw 61, a bent frame 62 and a wiping ring 63. The limit blocks 60 are arranged on both sides of the support frame plate 24, and a rotating lead screw 61 is rotated between the support frame plates 24. Reciprocating threads are symmetrically formed on the outer side of the rotating lead screw 61, and two symmetrically distributed bent frames 62 are threadedly connected to the outer side of the rotating lead screw 61. The bent frames 62 are slidably connected to the support frame plate 24. That is, when the rotating lead screw 61 is driven by an external force, it can rotate under the limitation of the limit block 60, and drive the bent frames 62 to reciprocate under the limitation of the support frame plate 24 through the reciprocating threads on its outer side.

[0069] One side of the bent frame 62 extends towards the lighting strip 26 and is provided with a wiping ring 63 sleeved on its outer side. That is, when the bent frame 62 moves, it can drive the wiping ring 63 to move synchronously, and when the wiping ring 63 moves, it can wipe off the dust adhering to the outer side of the lighting strip 26.

[0070] Moreover, the extended section of the bent frame 62 contacts the inner side of the transparent plate 25 and can wipe the inner side of the transparent plate 25. The other side of the bent frame 62 extends to the other side of the support frame plate 24 and contacts the transparent plate 25 and can wipe its outer side, preventing the transparent plate 25 from always remaining transparent.

[0071] Continue to refer to Figure 10 、 Figure 11 and Figure 12 As shown, in order to drive the sliding shaft 21 to slide and the rotating lead screw 61 to rotate, a driving assembly 7 is jointly provided on the triangular frame 20 and the support frame plate 24; specifically, the driving assembly 7 includes a connecting plate 70, a dual-axis motor 71, a driving lead screw 72, a spring shaft 73, a gear transmission box 74, a hexagonal cylinder 75, a hexagonal block 76, a pushing plate 77 and a passive ring 78. The connecting plate 70 is arranged on one side of several sliding shafts 21 located inside the triangular frame 20, and a dual-axis motor 71 is arranged inside the triangular frame 20 through a motor seat. A driving lead screw 72 threadedly connected to the connecting plate 70 is installed on one driving shaft of the dual-axis motor 71, and reciprocating threads are formed on the outer side of the driving lead screw 72. That is, the dual-axis motor 71 can drive the driving lead screw 72 to rotate through one driving shaft, and the driving lead screw 72 can drive several sliding shafts 21 to reciprocate synchronously through the reciprocating threads on its outer side and the connecting plate 70, thereby indirectly changing the position of the camera 23.

[0072] Moreover, on the other side of the biaxial motor 71, a spring shaft 73 is rotatably inserted through the outside of the triangular frame 20. That is, the spring shaft 73 can rotate along with the drive shaft on the other side of the biaxial motor 71.

[0073] A gear transmission box 74 with one end sleeved outside the rotating lead screw 61 is installed on the support frame plate 24. And on one side drive port of the gear transmission box 74, a hexagonal cylinder 75 is provided. At the end of the spring shaft 73, a hexagonal block 76 corresponding to the inner wall of the hexagonal cylinder 75 is provided. On the side of the mounting plate 22 facing the spring shaft 73, a push plate 77 is provided. And on the outside of the telescopic end of the spring shaft 73, a passive ring 78 corresponding to the push plate 77 is further provided.

[0074] That is, when it is necessary to wipe the dust on the transparent plate 25 and the lighting strip 26, at this time, the mounting plate 22 is indirectly driven by the biaxial motor 71 to move towards the support frame plate 24. And when the mounting plate 22 moves, it can push the passive ring 78 through the push plate 77, thereby driving the telescopic end of the spring shaft 73 to move, so that the hexagonal block 76 is inserted into the corresponding hexagonal cylinder 75, and drives the hexagonal cylinder 75 to rotate. The hexagonal cylinder 75 can then drive the gear transmission box 74 to operate. The gear transmission box 74 can then drive the drive lead screw 72 to rotate, driving the bent frame 62 to move. When the sliding shaft 21 slides to the end, at this time, under the drive of the reciprocating thread outside the rotating lead screw 61, the mounting plate 22 moves away from the support frame plate 24. At this time, the hexagonal block 76 is still inserted into the hexagonal cylinder 75, and the bent frame 62 will gradually move back to the initial position under the drive of the drive lead screw 72. Finally, the hexagonal block 76 is completely retracted, and the bent frame 62 also completes the reset.

[0075] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0076] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic leaf sorting device for famous and high-quality machine-picked tea fresh leaves, comprising a bottom plate (1) and a support frame (10), characterized in that: A rectangular cover (11) is arranged at the upper end of the support frame (10), a visual sorting device (2) is arranged inside the rectangular cover (11), a blowing assembly (3) for sorting tea leaves is also arranged inside the rectangular cover (11), and a conveyor belt (12) is arranged between the support frames (10) with one side located at the lower end of the rectangular cover (11); Three conveyor belts (13) corresponding to the visual sorting devices (2) are arranged between the support frames (10); Two conveying devices (14) are arranged on the bottom plate (1), and one side of one conveying device (14) corresponds to one side of conveyor belt 1 (12), and one side of the other conveying device (14) corresponds to one side of conveyor belt 2 (13). A wind selection component (5) for selecting broken leaves from tea leaves is also arranged on one side of the conveying device (14).

2. The automatic leaf sorting device for famous and high-quality machine-picked fresh tea leaves according to claim 1, characterized in that: A rotating shaft (15) is rotatably mounted on the conveying device (14), and a plurality of shifting shafts (16) distributed along the axis and the extension section of the rotating shaft (15) are mounted on the outer side of the rotating shaft (15).

3. The automatic leaf sorting device for famous and high-quality machine-picked fresh tea leaves according to claim 1, wherein: The visual sorting device (2) comprises a triangular frame (20) arranged in a rectangular cover (11), a plurality of sliding shafts (21) slidably passing through the triangular frame (20), a mounting plate (22) being arranged between two sliding shafts (21), a camera (23) being mounted on the mounting plate (22), and a camera port of the camera (23) being placed toward one side of the second conveyor belt (13).

4. An automatic leaf sorting device for high-quality machine-picked fresh tea leaves according to claim 3, characterized in that: A supporting frame plate (24) is also provided between the rectangular covers (11), a transparent plate (25) corresponding to the camera end of the camera (23) is provided on the supporting frame plate (24), and a lighting strip (26) is also provided on the inner side of the supporting frame plate (24).

5. An automatic leaf sorting device for high-quality machine-picked fresh tea leaves according to claim 1, characterized in that: The blowing assembly (3) comprises support plates (30) arranged on both sides of the rectangular cover (11), a first blowing device (31) and a second blowing device (32) being arranged between the support plates (30), and a plurality of air holes (33) distributed along the extension sections of the first blowing device (31) and the second blowing device (32) being provided on one side.

6. The automatic leaf sorting device for high-quality machine-picked fresh tea leaves according to claim 5, wherein: A sorting assembly (4) is arranged on the support frame (10), and the sorting assembly (4) comprises three discharge frames (40) installed between the support frames (10), and ports at the bottom of the three discharge frames (40) respectively correspond to the three conveyor belts 2 (13).

7. An automatic leaf sorting device for high-quality machine-picked fresh tea leaves according to claim 6, characterized in that: The air hole (33) of the first blowing device (31) corresponds to a discharge frame (40) at one side, and the air hole (33) of the second blowing device (32) corresponds to a discharge frame (40) at the middle.

8. An automatic leaf sorting device for high-quality machine-picked fresh tea leaves according to claim 1, characterized in that: The air selection assembly (5) comprises a bending cover (50) arranged on one side of the conveying device (14), a bending plate (51) being arranged inside the bending cover (50), and two discharge troughs (52) are formed in the gaps between the two ends of the bending plate (51) and the inner wall of the bending cover (50).

9. An automatic leaf sorting device for high-quality machine-picked fresh tea leaves according to claim 8, characterized in that: A transverse plate (53) is provided on one side of the bending cover (50), an air outlet cover (54) is provided on the transverse plate (53), a port of the air outlet cover (54) faces the inner discharge chute (52), a connection port is provided on the other side of the air outlet cover (54), and a discrete shaft (55) is rotatably provided at the bending portion of the bending plate (51).

10. An automatic leaf - leveling and sorting method for high - quality machine - picked tea fresh leaves, using an automatic leaf - leveling and sorting device for high - quality machine - picked tea fresh leaves as described in any one of claims 1 - 9, characterized in that, Sorting methods The following steps are involved: S1, Initial selection of tea leaves: Pour the tea leaves onto the conveyor device (14) on one side. Use the air separation component (5) to blow out some broken leaves in the tea leaves. The remaining tea leaves will finally fall onto conveyor belt one (12). And the conveying speed of the conveyor device (14) is faster than that of conveyor belt one (12). After the tea leaves fall onto conveyor belt one (12), conveyor belt one (12) quickly takes the tea leaves away to avoid the inability to accurately distinguish the types of tea leaves during the subsequent sorting process due to the accumulation of tea leaves; S2, Visual inspection: Conveyor belt one (12) transports the tea leaves under the rectangular cover (11), and start the visual sorting device (2) to detect the color, size and shape of the tea leaves; S3, Variety screening: Finally, the visual sorting device (2) divides the tea leaves into broken leaves, bulk tea and famous tea in turn, and separates the above three kinds of tea leaves through the blowing component (3); S4, Tea leaf removal: The sorted broken leaves, bulk tea and famous tea will respectively fall onto the corresponding three conveyor belts two (13), and conveyor belt two (13) removes the corresponding tea leaves from this device; S5, Air separation of famous tea: After the conveyor belt two (13) on one side transports the famous tea to the corresponding conveyor device (14), perform secondary air separation on the famous tea through the corresponding air separation component (5) to separate the famous tea and the broken leaves mixed inside.

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