Screening and slitting device for tea leaf grading and using method thereof

Abstract

The invention discloses a screening and slitting device for tea leaf grading and a using method thereof, and relates to the technical field of tea leaf collection, the screening and slitting device comprises a mounting frame, a first moving assembly is mounted on the inner wall of the top of the mounting frame, a second moving assembly is connected to the bottom of the first moving assembly, and a mounting cylinder is mounted at the bottom of the second moving assembly; a first electric push rod is mounted in the mounting cylinder, a connecting rod is mounted at the output end of the first electric push rod, a mounting plate is mounted at the bottom end of the connecting rod, pneumatic assemblies are symmetrically mounted at the bottom of the mounting plate, and a connecting pipe is mounted on one side of each pneumatic assembly and connected with an air pressure transmission pipe; a clamping assembly is installed at the output end of the pneumatic assembly. The clamping assembly simulates the softness and flexibility of a human hand, so that the situation that the clamping assembly can deal with fragile tea leaves finely during operation is avoided, and damage to the leaves is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of green tea collection, and in particular to a screening and cutting device for green tea grading and a use method thereof. Background Art

[0002] China has a huge tea planting area, reaching 51 million mu in 2023, with an output of 3.3 million tons. However, in the process of tea production, we are facing the problems of aging labor structure, rural hollowing out and low production efficiency. The tea leaves picked by temporary migrant workers and picked by machines inevitably contain woody stalks. These stalks not only affect the subsequent withering, shaping, baking, frying and other processes, but also have a negative impact on the visual sensory rating and taste of the tea. At present, the picking methods of tea leaves are mainly divided into manual picking and machine picking. Bulk tea picked by machine is the trend of future development. After the tea leaves are picked, adding a system equipment for cutting the stalks is an advancement in technology, which can shorten the quality gap between bulk tea and famous tea, and has huge market application prospects. The development of an automated intelligent system for cutting and screening tea leaves is not only an important part of the full closed-loop quality control of the tea making process, but also a strong support for the revitalization of rural industries and culture.

[0003] The defects of the shearing machine in the prior art are: 1. Patent document CN212573588U discloses a tea picking robot, including: a frame, a four-axis parallel robot, a tea picking manipulator, a tea collection device and a control cabinet; the base of the four-axis parallel robot is suspended on the top of the frame through a sliding device; the picking manipulator is connected to the moving platform of the four-axis parallel robot, the tea collection device is connected to the picking manipulator, and the control cabinet is respectively connected to the four-axis parallel robot, the tea picking manipulator, the tea collection device and the sliding device. The utility model can pick tea tips in different directions, increase the amount of tea picked within the robot picking range, and improve the tea picking efficiency. At the same time, it can also expand the picking range of the tea picking manipulator to meet the width of the tea ridge, and increase the amount of tea picked when the robot does not move as a whole. When the tea picking robot collects and contacts the tea leaves, it cannot imitate the softness and flexibility of human hands, and is easy to damage the tea leaves.

[0004] 2. Patent document CN217470771U discloses a tea picking robot. When the tea leaves are picked by machine or manually, the lignified stalks on the tea leaves will be picked along with the tea leaves. The lignified stalks will affect the taste of the tea leaves. The tea picking robot lacks a cutting structure for the lignified stalks, which makes the lignified stalks inconvenient to handle.

[0005] 3. Patent document CN117178746A discloses a tea-picking robot. When the tea-picking robot is picking tea leaves, if the wind in the tea garden is strong, it will affect the stability of the tea leaves, thereby causing the tea-picking robot to be unable to pick the tea leaves. Summary of the invention

[0006] The object of the present invention is to provide a screening and cutting device for grading green tea leaves and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a screening and slitting device for grading green tea leaves, comprising a mounting frame, a first moving assembly is mounted on the top inner wall of the mounting frame, a second moving assembly is connected to the bottom of the first moving assembly, a mounting cylinder is mounted on the bottom of the second moving assembly, a first electric push rod is mounted inside the mounting cylinder, and a connecting rod is mounted on the output end of the first electric push rod; A mounting plate is installed at the bottom end of the connecting rod, and a pneumatic component is symmetrically installed at the bottom of the mounting plate. A connecting pipe is installed on one side of the pneumatic component, and the connecting pipe is connected to the air pressure transmission pipe. A clamping assembly is installed at the output end of the pneumatic component, and the clamping assembly is used to clamp the green tea. The clamping assembly includes a splint, a spring, a connecting plate and a clamping airbag. The splint is connected to the output end of the pneumatic component, the spring is symmetrically installed on the inner side of the splint, the connecting plate is installed at one end of the spring, and the clamping airbag is installed on one side of the connecting plate.

[0008] Preferably, an intelligent identification system is installed at the bottom of the mounting plate, and the intelligent identification system is located between the pneumatic components. A plate body is installed at the bottom of one side of the pneumatic component, a detection head is installed on the inner side of the plate body, and the detection end of the detection head faces the clamping component.

[0009] Preferably, a second electric push rod is installed at the bottom of the other pneumatic component, a connecting piece is installed at the output end of the second electric push rod, a third electric push rod is installed on one side of the bottom of the connecting piece, and a pneumatic cutting knife is installed at the output end of the third electric push rod.

[0010] Preferably, the first moving component includes a mounting shell, a transmission screw, a moving block, a connecting shell and a driving motor, the mounting shell is mounted on the top inner wall of the mounting frame, the transmission screw is mounted inside the mounting shell, the moving block is mounted on the outside of the transmission screw, the moving block passes through the bottom of the mounting shell, and the bottom of the moving block is connected to the top of the second moving component, the connecting shell is mounted on the back of the mounting shell, the driving motor is mounted inside the connecting shell, and the output end of the driving motor is connected to the transmission screw.

[0011] Preferably, the second movable assembly has the same structure as the first movable assembly, the first movable assembly is installed longitudinally, the second movable assembly is laterally connected to the bottom of the first movable assembly, and the slider bodies are symmetrically installed on both sides of the second movable assembly.

[0012] Preferably, support grooves are symmetrically opened on the inner wall of the mounting frame, and the support grooves are slidably connected to the slider body, LED light boards are symmetrically installed on the inner wall of the mounting frame, and the LED light boards are located below the support grooves, and multiple warning lights are symmetrically installed on the outer side of the mounting frame.

[0013] Preferably, a movable seat is installed at the bottom of the mounting frame, electromagnetic tracks are symmetrically installed on the front and back of the mounting frame, an electromagnetic slider is installed at the electromagnetic driving end of the electromagnetic track, and a windproof plate is installed on the outer side of the electromagnetic slider.

[0014] Preferably, a pressure system is installed on the top of the mounting frame, a pressure gauge is installed on the top of the pressure system, a pressure transmission pipe is installed on the pressure output end of the pressure system, a support frame is installed on the top of the mounting frame, and a solar panel is installed on the top of the support frame.

[0015] The method for using the screening and cutting device comprises the following steps: Step S1, firstly, the screening and slitting device is moved to the inside of the tea garden through the moving seat, and the screening and slitting device is moved inside the tea garden through the moving seat, and the green tea leaves for picking are located on the inner side of the mounting frame; Step S2, the first moving assembly provides longitudinal movement power for the clamping assembly of the screening and slitting device, the second moving assembly provides lateral movement power for the clamping assembly, and the first electric push rod drives the clamping assembly to move up and down; Step S3, the intelligent identification system identifies the green tea that can be collected, and then uses the pneumatic component to provide power to enable the clamping component to clamp the green tea. After clamping, the first electric push rod drives the clamping component to move upward to collect the green tea.

[0016] In the step S1, the following steps are also included: Step S11, when the screening and cutting assembly moves to the inside of the tea garden to collect green tea leaves, if the wind in the tea garden is strong, the electromagnetic track and the electromagnetic slider drive the windbreak plate to move downward to block the wind; In step S3, the following steps are also included: Step S31, after the green tea leaves are collected, some of the green tea leaves will have lignified stalks. After the detection head detects the lignified stalks, the third electric push rod drives the pneumatic cutting knife to move to cut the lignified stalks on the green tea leaves.

[0017] Compared with the prior art, the present invention has the following beneficial effects: When the clamping assembly of the present invention is in use, the green tea is clamped by the clamping plate in the clamping assembly. Since the green tea is very fragile, in order to avoid damage to the tea by direct clamping of the clamping plate, a connecting plate is installed on the clamping plate through a spring. When the clamping plate clamps the green tea, the connecting plate has a buffering elastic force. At the same time, a clamping airbag is installed on one side of the connecting plate. The clamping airbag contacts the green tea and has good resilience, imitating the softness and flexibility of human hands, so that the clamping assembly can avoid delicate handling of fragile green tea during operation and reduce damage to the leaves. After the green tea is clamped, the first electric push rod drives the clamping assembly to move upward, thereby collecting the green tea.

[0018] The detection head in the present invention is used to detect whether there is lignified stem stalk on the green tea leaves. If the green tea leaves have lignified stem stalk, the taste of the tea will be poor, so a pneumatic cutting knife is needed to cut the lignified stem stalk from the green tea leaves. When cutting, the electric energy is first converted into kinetic energy by the second electric push rod, and the third electric push rod installed by the connecting piece is driven to move downward, so that the pneumatic cutting knife installed at the output end of the third electric push rod moves downward to an accurate height, and then the pneumatic cutting knife is driven by the third electric push rod to move toward the lignified stem stalk, and the lignified stem stalk is cut by the pneumatic cutting knife, so as to maintain the integrity of the green tea leaves and improve the quality of the final product.

[0019] In the present invention, when the wind in the tea garden is strong, the green tea leaves will sway under the influence of the wind. At this time, the windproof plate is moved downward to block the wind, thereby preventing the wind from affecting the green tea leaves, so that the device can stably and accurately collect the green tea leaves. The air pressure system provides driving air pressure for the air pressure components in the device, the barometer is used to observe the pressure of the air pressure system, the air pressure transmission pipe is used to transmit the air pressure, the support frame is used to support the solar panel, and the solar panel is used to convert solar energy into electrical energy to provide power for the device, making the device more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic structural diagram of the first moving component of the present invention; Figure 3 It is a schematic diagram of the structure of the first electric push rod of the present invention; Figure 4 It is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic diagram of the structure of the pneumatic cutting scissors of the present invention; Figure 7It is a schematic diagram of the structure of the air pressure system of the present invention.

[0021] In the figure: 1. mounting frame; 2. warning light; 3. moving seat; 4. supporting frame; 5. solar panel; 6. air pressure system; 7. barometer; 8. air pressure transmission pipe; 9. electromagnetic track; 10. windproof plate; 11. electromagnetic slider; 12. supporting groove; 13. LED light board; 14. first moving component; 15. mounting shell; 16. transmission screw rod; 17. connecting shell; 18. driving motor; 19. second moving component; 20. slider body; 21. mounting tube; 22. first electric push rod; 23. connecting rod; 24. mounting plate; 25. intelligent identification system; 26. pneumatic component; 27. connecting pipe; 28. clamping plate; 29. ​​spring; 30. connecting plate; 31. clamping airbag; 32. second electric push rod; 33. connecting piece; 34. third electric push rod; 35. air pressure cutting knife; 36. plate; 37. detection head; 38. moving block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection or a movable connection, or a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-Figure 5, an embodiment provided by the present invention: a screening and cutting device for grading green tea leaves; It includes a mounting frame 1 and a clamping assembly, a first moving assembly 14 is mounted on the top inner wall of the mounting frame 1, a second moving assembly 19 is connected to the bottom of the first moving assembly 14, a mounting tube 21 is mounted on the bottom of the second moving assembly 19, a first electric push rod 22 is mounted inside the mounting tube 21, a connecting rod 23 is mounted on the output end of the first electric push rod 22, a mounting plate 24 is mounted on the bottom end of the connecting rod 23, a pneumatic assembly 26 is symmetrically mounted on the bottom of the mounting plate 24, a connecting pipe 27 is mounted on one side of the pneumatic assembly 26, and the connecting pipe 27 is connected to the air pressure transmission pipe 8, a clamping assembly is mounted on the output end of the pneumatic assembly 26, the clamping assembly includes a clamping plate 28, a spring 29, a connecting plate 30 and a clamping airbag 31, the clamping plate 28 is connected to the output end of the pneumatic assembly 26, the spring 29 is symmetrically mounted on the inner side of the clamping plate 28, the connecting plate 30 is mounted on one end of the spring 29, and the clamping airbag 31 is mounted on one side of the connecting plate 30; The mounting frame 1 is a frame in the screening and slitting device, and provides a position for the installation of the first moving component 14. The first moving component 14 is used to drive the second moving component 19 connected to the bottom to move longitudinally. The second moving component 19 is used to drive the mounting tube 21 to move horizontally. The mounting tube 21 provides a position for the installation of the first electric push rod 22. After being energized, the first electric push rod 22 converts electrical energy into kinetic energy, and drives the connecting rod 23 at the output end to move up and down. The connecting rod 23 plays a connecting role. The mounting plate 24 provides a position for the installation of the pneumatic component 26. The pneumatic component 26 is used to convert air pressure energy into kinetic energy to drive the clamping component to operate. The connecting pipe 27 provides a channel for the transmission of air pressure, so that the air pressure can enter the pneumatic component 26 and clamp. When the component is in use, the green tea is clamped by the clamping plate 28 in the clamping component. Since the green tea is very fragile, in order to avoid damage to the tea caused by direct clamping of the clamping plate 28, a connecting plate 30 is installed on the clamping plate 28 through a spring 29. When the clamping plate 28 clamps the green tea, the connecting plate 30 has a buffering elastic force. At the same time, a clamping airbag 31 is installed on one side of the connecting plate 30. The clamping airbag 31 contacts the green tea. The clamping airbag 31 has good resilience and imitates the softness and flexibility of human hands, so that the clamping component can not delicately handle the fragile green tea during operation, thereby reducing damage to the leaves. After the green tea is clamped, the first electric push rod 22 drives the clamping component to move upward, so as to collect the green tea.

[0026] See also Figure 3 , Figure 4 and Figure 6 , an embodiment provided by the present invention: a screening and cutting device for grading green tea leaves; It includes a detection head 37 and a pneumatic cutting knife 35. An intelligent identification system 25 is installed at the bottom of the mounting plate 24, and the intelligent identification system 25 is located between the pneumatic components 26. A plate body 36 is installed at the bottom of one side of the pneumatic component 26, and a detection head 37 is installed on the inner side of the plate body 36, and the detection end of the detection head 37 faces the clamping component. A second electric push rod 32 is installed at the bottom of another pneumatic component 26, and a connecting piece 33 is installed at the output end of the second electric push rod 32. A third electric push rod 34 is installed at one side of the bottom of the connecting piece 33, and a pneumatic cutting knife 35 is installed at the output end of the third electric push rod 34; The mounting plate 24 also provides a location for the installation of an intelligent identification system 25, which is used to identify the green tea leaves so that the clamping assembly can accurately clamp and collect the green tea leaves. The plate body 36 provides a location for the installation of a detection head 37, which is used to detect whether there are lignified stems and stalks on the green tea leaves. If the green tea leaves have lignified stems and stalks, the taste of the tea will be poor, so the pneumatic cutting knife 35 is required to cut the lignified stems and stalks from the green tea leaves. When cutting, the electric energy is first converted into kinetic energy by the second electric push rod 32, and the third electric push rod 34 installed by the connecting piece 33 is driven to move downward, so that the pneumatic cutting knife 35 installed at the output end of the third electric push rod 34 moves downward to an accurate height, and then the pneumatic cutting knife 35 is driven by the third electric push rod 34 to move toward the lignified stems and stalks, and the lignified stems and stalks are cut by the pneumatic cutting knife 35, so as to maintain the integrity of the green tea leaves and improve the quality of the final product.

[0027] See also Figure 1 and Figure 2 , an embodiment provided by the present invention: a screening and cutting device for grading green tea leaves; It includes a first moving assembly 14 and a second moving assembly 19. The first moving assembly 14 includes a mounting shell 15, a transmission screw 16, a moving block 38, a connecting shell 17 and a driving motor 18. The mounting shell 15 is mounted on the top inner wall of the mounting frame 1, the transmission screw 16 is mounted inside the mounting shell 15, the moving block 38 is mounted on the outside of the transmission screw 16, the moving block 38 passes through the bottom of the mounting shell 15, and the bottom of the moving block 38 is connected to the top of the second moving assembly 19. The connecting shell 17 is mounted on the back of the mounting shell 15, the driving motor 18 is mounted inside the connecting shell 17, and the output end of the driving motor 18 is connected to the transmission screw 16. The second moving assembly 19 has the same structure as the first moving assembly 14. The first moving assembly 14 is mounted longitudinally, and the second moving assembly 19 is horizontally connected to the bottom of the first moving assembly 14. The slider body 20 is symmetrically mounted on both sides of the second moving assembly 19. When the first movable component 14 is in use, it is powered by the driving motor 18 to drive the transmission screw 16 to move. The transmission screw 16 rotates to move the movable block 38 installed on the outside. Since the movable block 38 is connected to the second movable component 19, the second movable component 19 moves longitudinally. The second movable component 19 has the same structural principle as the first movable component 14, and drives the mounting cylinder 21 at the movable end to move horizontally in the same way. At the same time, the two sides of the second movable component 19 are slidably connected to the support groove 12 through the slider body 20, thereby ensuring the stability of the second movable component 19.

[0028] See also Figure 1 and Figure 7 , an embodiment provided by the present invention: a screening and cutting device for grading green tea leaves; It includes a windbreak plate 10 and a solar panel 5. A support groove 12 is symmetrically provided on the inner wall of the mounting frame 1, and the support groove 12 is slidably connected to the slider body 20. An LED light board 13 is symmetrically installed on the inner wall of the mounting frame 1, and the LED light board 13 is located below the support groove 12. A plurality of warning lights 2 are symmetrically installed on the outer side of the mounting frame 1. A moving seat 3 is installed at the bottom of the mounting frame 1. Electromagnetic tracks 9 are symmetrically installed on the front and back of the mounting frame 1. An electromagnetic slider 11 is installed at the electromagnetic driving end of the electromagnetic track 9. A windbreak plate 10 is installed on the outer side of the electromagnetic slider 11. An air pressure system 6 is installed on the top of the mounting frame 1. A barometer 7 is installed on the top of the air pressure system 6. An air pressure transmission pipe 8 is installed on the air pressure output end of the air pressure system 6. A support frame 4 is installed on the top of the mounting frame 1. A solar panel 5 is installed on the top of the support frame 4. The support groove 12 provides a position for the installation of the slider body 20, and the LED light board 13 plays a role in lighting. After being powered on, the LED light board 13 converts electrical energy into light energy to illuminate the tea leaves, making the intelligent recognition system 25 more accurate in recognition, avoiding insufficient brightness affecting the accuracy of the clamping assembly on the tea leaves. When the device is used, the prompt light 2 lights up, and the moving seat 3 is used to drive the device to move. The electromagnetic track 9 cooperates with the electromagnetic slider 11 to drive the windbreak 10 to move up and down. The windbreak 10 is used to block the wind. When the tea garden When the wind is strong, the green tea leaves will sway under the influence of the wind. At this time, the windproof plate 10 is moved downward to block the wind and prevent the wind from affecting the green tea leaves, so that the device can stably and accurately collect the green tea leaves. The air pressure system 6 provides driving air pressure for the air pressure components in the device, the barometer 7 is used to observe the pressure of the air pressure system 6, the air pressure transmission pipe 8 is used to transmit the air pressure, the support frame 4 is used to support the solar panel 5, and the solar panel 5 is used to convert solar energy into electrical energy to provide power for the device, making the device more environmentally friendly.

[0029] The method for using the screening and cutting device comprises the following steps: Step S1, firstly, the screening and slitting device is moved to the inside of the tea garden through the movable seat 3, and the screening and slitting device is moved inside the tea garden through the movable seat 3, and the green tea leaves for picking are located on the inner side of the mounting frame 1; Step S2, the first moving assembly 14 provides power for longitudinal movement of the clamping assembly of the screening and slitting device, the second moving assembly 19 provides power for lateral movement of the clamping assembly, and the first electric push rod 22 drives the clamping assembly to move up and down; Step S3, the intelligent identification system 25 identifies the green tea that can be collected, and then uses the pneumatic component 26 to provide power to enable the clamping component to clamp the green tea. After clamping, the first electric push rod 22 drives the clamping component to move upward, thereby collecting the green tea.

[0030] In step S1, the following steps are also included: Step S11, when the screening and cutting assembly moves to the inside of the tea garden to collect green tea leaves, if the wind in the tea garden is strong, the electromagnetic track 9 and the electromagnetic slider 11 are used to drive the windbreak plate 10 to move downward to block the wind; In step S3, the following steps are also included: Step S31, after the green tea leaves are collected, some of the green tea leaves will have lignified stalks. After the detection head 37 detects the lignified stalks, the third electric push rod 34 drives the pneumatic cutting knife 35 to move and cut the lignified stalks on the green tea leaves.

[0031] Working principle: First, the device is placed in the tea garden for use. The installation of the movable seat 3 enables the device to move in the tea garden. When the wind is strong, the windbreak plate 10 is moved downward to block the wind so that the green tea can be stably collected. When collecting the green tea, the first movable assembly 14 and the second movable assembly 19 are used to drive the clamping assembly to move so that the clamping assembly moves to the top of the green tea to be collected, and then the clamping assembly is driven downward by the first electric push rod 22 to clamp the green tea. After clamping, the first electric push rod 22 moves upward to lift the green tea. After the green tea is collected, some of the green tea has lignified stalks. The pneumatic cutting knife 35 is moved to the outside of the lignified stalk by the second electric push rod 32 and the third electric push rod 34 to cut the lignified stalk.

[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A screening and slitting device for grading green tea leaves, comprising a mounting frame (1), characterized in that: A first moving assembly (14) is mounted on the inner wall of the top of the mounting frame (1); a second moving assembly (19) is connected to the bottom of the first moving assembly (14); a mounting cylinder (21) is mounted on the bottom of the second moving assembly (19); a first electric push rod (22) is mounted inside the mounting cylinder (21); and a connecting rod (23) is mounted on the output end of the first electric push rod (22); A mounting plate (24) is mounted at the bottom end of the connecting rod (23), a pneumatic assembly (26) is symmetrically mounted at the bottom of the mounting plate (24), a connecting pipe (27) is mounted on one side of the pneumatic assembly (26), and the connecting pipe (27) is connected to the air pressure transmission pipe (8), a clamping assembly is mounted at the output end of the pneumatic assembly (26), the clamping assembly is used to clamp the green tea, the clamping assembly comprises a clamping plate (28), a spring (29), a connecting plate (30) and a clamping airbag (31), the clamping plate (28) is connected to the output end of the pneumatic assembly (26), the spring (29) is symmetrically mounted on the inner side of the clamping plate (28), the connecting plate (30) is mounted on one end of the spring (29), and the clamping airbag (31) is mounted on one side of the connecting plate (30).

2. A screening and cutting device for grading green tea leaves according to claim 1, characterized in that: An intelligent identification system (25) is installed at the bottom of the mounting plate (24), and the intelligent identification system (25) is located between the pneumatic components (26). A plate body (36) is installed at the bottom of one side of the pneumatic component (26), and a detection head (37) is installed on the inner side of the plate body (36), and the detection end of the detection head (37) faces the clamping component.

3. The screening and cutting device for grading green tea leaves according to claim 1, characterized in that: A second electric push rod (32) is installed at the bottom of the other pneumatic component (26); a connecting piece (33) is installed at the output end of the second electric push rod (32); a third electric push rod (34) is installed on one side of the bottom of the connecting piece (33); and a pneumatic cutting knife (35) is installed at the output end of the third electric push rod (34).

4. The screening and cutting device for grading green tea leaves according to claim 1, characterized in that: The first moving assembly (14) comprises a mounting shell (15), a transmission screw (16), a moving block (38), a connecting shell (17) and a driving motor (18); the mounting shell (15) is mounted on the top inner wall of the mounting frame (1); the transmission screw (16) is mounted inside the mounting shell (15); the moving block (38) is mounted on the outside of the transmission screw (16); the moving block (38) passes through the bottom of the mounting shell (15); and the bottom of the moving block (38) is connected to the top of the second moving assembly (19); the connecting shell (17) is mounted on the back of the mounting shell (15); the driving motor (18) is mounted inside the connecting shell (17); and the output end of the driving motor (18) is connected to the transmission screw (16).

5. The screening and cutting device for grading green tea leaves according to claim 1, characterized in that: The second movable assembly (19) has the same structure as the first movable assembly (14); the first movable assembly (14) is installed longitudinally, the second movable assembly (19) is connected transversely to the bottom of the first movable assembly (14), and the slider bodies (20) are symmetrically installed on both sides of the second movable assembly (19).

6. The screening and cutting device for grading green tea leaves according to claim 1, characterized in that: The inner wall of the mounting frame (1) is symmetrically provided with support grooves (12), and the support grooves (12) are slidably connected to the slider body (20); an LED light board (13) is symmetrically installed on the inner wall of the mounting frame (1), and the LED light board (13) is located below the support grooves (12); and a plurality of warning lights (2) are symmetrically installed on the outer side of the mounting frame (1).

7. The screening and cutting device for grading green tea leaves according to claim 1, characterized in that: A movable seat (3) is installed at the bottom of the mounting frame (1), electromagnetic tracks (9) are symmetrically installed on the front and back of the mounting frame (1), an electromagnetic slider (11) is installed at the electromagnetic drive end of the electromagnetic track (9), and a windproof plate (10) is installed on the outer side of the electromagnetic slider (11).

8. The screening and cutting device for grading green tea leaves according to claim 1, characterized in that: A pneumatic system (6) is installed on the top of the mounting frame (1), a pressure gauge (7) is installed on the top of the pneumatic system (6), a pneumatic transmission pipe (8) is installed at the pneumatic output end of the pneumatic system (6), a supporting frame (4) is installed on the top of the mounting frame (1), and a solar panel (5) is installed on the top of the supporting frame (4).

9. A method for using a screening and cutting device for grading green tea leaves, applicable to a screening and cutting device for grading green tea leaves as claimed in any one of claims 1 to 8, characterized in that: The method for using the screening and cutting device for grading green tea leaves comprises the following steps: Step S1, firstly, the screening and slitting device is moved to the inside of the tea garden via the movable seat (3), and the screening and slitting device is moved inside the tea garden via the movable seat (3), and the green tea leaves for picking are located on the inner side of the mounting frame (1); Step S2, the first moving assembly (14) provides power for longitudinal movement of the clamping assembly of the screening and slitting device, the second moving assembly (19) provides power for lateral movement of the clamping assembly, and the first electric push rod (22) drives the clamping assembly to move up and down; Step S3, the intelligent identification system (25) identifies the green tea that can be collected, and then uses the pneumatic component (26) to provide power to enable the clamping component to clamp the green tea. After clamping, the first electric push rod (22) drives the clamping component to move upward, thereby collecting the green tea.

10. The method for screening and cutting for grading green tea leaves according to claim 9, characterized in that: In the step S1, the following steps are also included: Step S11, when the screening and cutting assembly moves to the interior of the tea garden to collect green tea leaves, if the wind in the tea garden is strong, the electromagnetic track (9) and the electromagnetic slider (11) are used to drive the windbreak plate (10) to move downward to block the wind; In step S3, the following steps are also included: Step S31: After the green tea leaves are collected, some of them may have lignified stems. After the detection head (37) detects the lignified stems, the third electric push rod (34) drives the pneumatic cutting knife (35) to move and cut the lignified stems on the green tea leaves.

Images