Stepped conveying type tea harvesting and grading all-in-one machine

Abstract

A step conveying type tea leaf harvesting and grading all-in-one machine comprises a main body, at least one feeding mechanism is arranged on the main body, a swing leaf shifting piece is arranged at the front end of each feeding mechanism, a discharging unit is connected to the rear end of each feeding mechanism, and a cutting assembly is arranged at the rear position below each feeding mechanism; tea leaves are assisted to enter the first conveying channel to be cut and conveyed through the swing leaf shifting part, the tea leaves are rapidly divided and guided through the feed port with the wide front portion and the narrow rear portion and the first conveying assembly and the second conveying assembly which are arranged in a staggered mode, the cutting efficiency and smoothness are improved, and the cutting efficiency is improved. The cut tea leaves can be conveyed to a preset position through the feeding mechanism, the tea leaves can be sorted according to the length of the tea leaves through the arrangement of the feeding unit and the sorting unit, the subsequent selection procedure is avoided, the tea leaves are prevented from being damaged during transportation through belt conveying, and the tea leaves are not damaged during transportation through the open type discharging mechanism. And the tea leaves can easily fall off from the belt.

Description

Technical Field

[0001] The present invention relates to the field of tea picking, and particularly to a stepped conveyor type tea harvesting and grading integrated machine. Background Art

[0002] China is the origin country of tea, with a long history of tea production and a huge tea output. At the same time, we are also the country with the highest requirements for the quality of tea raw materials, and tea leaves of different sizes need to be classified and picked. The traditional tea picking method is manual picking, which can manually control the size of the picked tea leaves for classification. However, manual picking is inefficient, and labor costs are getting higher and higher. Relying entirely on manual picking will greatly affect the tea output.

[0003] Although there are already various tea picking machines on the market, most of them do not have primary screening, transportation, grading, and cannot ensure no loss of tea leaves.

[0004] For example, CN102783309A discloses an electric tea picking machine, which is characterized in that the upward extending rotating shaft of the same motor is connected to the fan impeller, and the downward extending rotating shaft is connected to the transmission mechanism of the working tool. The specific structure is that the upper output shaft of the motor is fixed to the fan impeller, the lower output shaft of the DC motor is fixed to the central shaft of the crankshaft disc, and the two eccentric wheel parts of the crankshaft disc are respectively and movably connected to the big end heads of the upper and lower connecting rods. The small end heads of the upper and lower connecting rods are respectively and movably connected to the upper and lower blades. Alternatively, the lower output shaft of the DC motor is set as an external gear shaft, which meshes with the internal gear of an internal and external diameter gear, and the external gear of the internal and external diameter gear meshes with the outer diameter edge gear of the crankshaft disc.

[0005] For example, CN108207313A discloses a tea picking machine, which includes a vehicle body with a traveling mechanism arranged at the bottom, a column arranged on the vehicle body, a scissor unit arranged on a scissor support. The scissor unit is integrally arranged in an arc shape that fits the curved surface shape of the tea tree crown A. The scissor support is connected to the column. An air blowing pipe and a tea leaf collecting bag are arranged on the scissor support. The air flow discharge direction of the air blowing pipe points to the position of the bag mouth of the tea leaf collecting bag. The scissor unit is located between the air outlet of the air blowing pipe and the bag mouth of the tea leaf collecting bag. The tea leaves cut by the scissor unit are immediately blown towards the position of the bag mouth of the tea leaf collecting bag by the air flow discharged from the air blowing pipe. In this way, during the process of the tea picking machine walking and cutting at the same time, the tea leaves are timely collected into the tea leaf collecting bag. After the tea leaf collecting bag collects an appropriate amount of tea leaves, the tea leaf collecting bag can be replaced or the tea leaves in the bag can be poured and transferred.

[0006] All of the above technical solutions cut everything that enters the shearing range and send it into the storage bin without discrimination. The cut tea leaves include a mixed raw material of new shoots, short leaves, young leaves, old leaves, tea stalks, etc. Subsequently, manual selection and classification are still required, which increases labor costs and is inefficient. Therefore, it is necessary to design a stepped conveyor type tea harvesting and grading integrated machine to achieve the preliminary screening, transportation, and grading of tea leaves, thereby solving the problems existing in the prior art. Summary of the Invention

[0007] The purpose of the present invention is to provide a stepped conveyor type tea harvesting and grading integrated machine, which realizes auxiliary feeding and grading of tea leaves during tea picking, and strengthens the collection effect of the cut tea leaves; the present invention does not require later classification, avoiding damage to the tea leaves during picking, so as to solve the technical defects and unmet technical requirements of the prior art.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A stepped conveyor type tea harvesting and grading integrated machine includes a main body, at least one feeding mechanism is provided on the main body, a swinging leaf member is provided at the front end of the feeding mechanism, a discharging unit is connected to the rear end of the feeding mechanism, and a cutting assembly is provided below the feeding mechanism;

[0009] The swinging leaf member swings to assist the tea leaves to enter the feeding mechanism. The feeding mechanism clamps and transports the tea leaves into the discharging unit. Before the clamped and transported tea leaves reach the discharging unit, the cutting assembly cuts the tea leaves.

[0010] Preferably, the feeding mechanism includes at least one feeding unit and a grading unit. The grading unit is arranged at a position behind and above the feeding unit;

[0011] The feeding unit includes a first feeding component and a second feeding component. A first conveying channel and a feeding port are formed between the first feeding component and the second feeding component. The feeding port gradually contracts from the front end of the feeding unit to the first conveying channel, and the feeding port is at least surrounded by two inclined planes;

[0012] The grading unit corresponds to the feeding unit in position. The grading unit includes a third feeding component and a fourth feeding component. The third feeding component is arranged at a position behind and above the first feeding component, and the fourth feeding component is arranged at a position behind and above the second feeding component. A second conveying channel is formed between the third feeding component and the fourth feeding component;

[0013] The tea leaves are gathered into the first conveying channel from the feeding port. The feeding unit clamps and transports the tea leaves through the first feeding component and the second feeding component. The shorter tea leaves fall from the rear end of the first conveying channel to the first preset position in the discharging unit, while the longer tea leaves are continuously clamped and transported along the second conveying channel to the second preset position in the discharging unit, realizing the grading of tea leaves with different lengths.

[0014] Preferably, each set of feeding components includes a conveyor belt and a plurality of pulleys. The conveyor belt is sleeved outside several pulleys to form a loop. A number of protrusions are provided on the outer side wall of the pulley to prevent the conveyor belt from falling off the pulley.

[0015] Preferably, the first feeding component includes: a first pulley, a second pulley, a third pulley, a first conveyor belt and a first mounting base. The first pulley is arranged at the front end position on the first mounting base. The third pulley is arranged at the rear end position on the first mounting base. The second pulley is located between the first pulley and the third pulley. The first conveyor belt is sleeved outside the first pulley, the second pulley and the third pulley. The distance between the third pulley and the second pulley is greater than the distance between the first pulley and the second pulley. The distances from the second pulley and the third pulley to the first conveying channel are the same, and this distance is less than the distance from the first pulley to the first conveying channel;

[0016] The second feeding component includes a fourth pulley, a fifth pulley, a sixth pulley, a second conveyor belt and a second mounting base. The fourth pulley is arranged at the front end position on the second mounting base. The sixth pulley is arranged at the rear end position on the second mounting base. The fifth pulley is located between the fourth pulley and the sixth pulley. The second conveyor belt is sleeved outside the fourth pulley, the fifth pulley and the sixth pulley. The distance between the sixth pulley and the fifth pulley is greater than the distance between the fourth pulley and the fifth pulley. The distances from the fifth pulley and the sixth pulley to the first conveying channel are the same, and this distance is less than the distance from the fourth pulley to the first conveying channel;

[0017] The conveyor belt between the first pulley and the second pulley forms an inclined plane surrounding the feeding port. The conveyor belt between the fourth pulley and the fifth pulley forms another inclined plane surrounding the feeding port. A first conveying channel is formed between the first conveyor belt between the second pulley and the third pulley and the second conveyor belt between the fifth pulley and the sixth pulley.

[0018] Preferably, the adjacent feeding units and the grading units are symmetrically arranged. The first conveying channels in each feeding unit are parallel to each other, and the second conveying channels in each grading unit are parallel to each other;

[0019] An installation base is provided in both the feeding unit and the grading unit. The installation base is disposed above a plurality of belt pulleys, and the belt pulleys are rotatably connected to the installation base. The swing vane member is disposed on the top of the installation base, and a rotating end, a free end and a driven member are provided on the swing vane member. The rotating end is rotatably connected to the installation base, the free end extends away from the installation base to the outside of the installation base, and the driven member is located between the free end and the rotating end of the swing vane member.

[0020] Eccentric wheel portions are provided on both the second belt pulley and the fifth belt pulley. An elastic member is further provided on the installation base. The swing vane member above the first feeding assembly abuts against the eccentric wheel portion on a second belt pulley through the driven member, and the elastic member on the installation base corresponding to the first feeding assembly abuts against the side of the driven member away from the second belt pulley. The swing vane member above the second feeding assembly abuts against the eccentric wheel portion on a fifth belt pulley through the driven member, and the elastic member on the installation base corresponding to the second feeding assembly abuts against the side of the driven member away from the fifth belt pulley. By the rotation of the second belt pulley and the fifth belt pulley respectively, the swing driving of the swing vane member is completed.

[0021] In this application, the installation base refers to the above-mentioned first installation base and second installation base, that is, the above-mentioned first installation base and second installation base are collectively referred to as the installation base.

[0022] Preferably, the spaces between adjacent feeding units and between the grading units are symmetrically arranged, and the first conveying channels in each feeding unit are parallel to each other, and the second conveying channels in each grading unit are parallel to each other.

[0023] An installation base is provided in both the feeding unit and the grading unit. The installation base is disposed above a plurality of belt pulleys, and the belt pulleys are rotatably connected to the installation base. The swing vane member is disposed on the top of the installation base, and a rotating end, a free end and a driven member are provided on the swing vane member. The rotating end is rotatably connected to the installation base, the free end extends away from the installation base to the outside of the installation base, and the driven member is located between the free end and the rotating end of the swing vane member.

[0024] Eccentric wheel portions are provided on both the second belt pulley and the fifth belt pulley. The swing vane member above the first feeding assembly abuts against the eccentric wheel portions on two adjacent and synchronously rotating second belt pulleys through the driven member at the same time, and the swing vane member above the second feeding assembly abuts against the eccentric wheel portions on two adjacent and synchronously rotating fifth belt pulleys through the driven member at the same time. By the rotation of the second belt pulley and the fifth belt pulley respectively, the swing driving of the swing vane member is completed.

[0025] In this application, the content that needs further explanation is as follows: The eccentric wheel part described above is a type of cam structure. In this application, the eccentric wheel part is just one of the ways. It can be understood that the swing of the swing blade part in this application is achieved through the cam structure. And because the feeding units are symmetric, it should be further explained that this symmetry refers to the symmetry of the overall position. For the second pulley and the fifth pulley, eccentric wheel parts are provided on both of them. Additionally, it is emphasized here that the "convex" directions of the eccentric wheel parts on the adjacent second pulley and the adjacent fifth pulley are the same, that is, although they have the same shape and are symmetric in position, the radii of the cross-sections of the eccentric wheel parts on the same installation base in the same direction are the same.

[0026] Moreover, a comb leaf part is provided on the free end. One end of the comb leaf part is connected to the swing end, and the other end inclines downward in the direction away from the base, and the width of the comb leaf part gradually becomes smaller along the inclined direction.

[0027] In this application, it needs to be further explained that the width of the comb leaf part gradually becomes smaller along the inclined direction. This inclined direction is composed of two directions, namely the vertical direction and the horizontal direction (the horizontal direction from the front end to the rear end). Therefore, the gradual change in width along the inclined direction mentioned above means that the widths in both the horizontal direction and the vertical direction change, that is, it can be understood that the width gradually becomes smaller from top to bottom and gradually becomes smaller from the rear to the front.

[0028] Preferably, the front end of the first feeding component is located at a position behind the side of the front end of the second feeding component;

[0029] The third pulley is located at a position in front of or behind the side of the sixth pulley, so that a section at the rear of the first conveyor belt and the second conveyor belt is staggered to form a first discharge port connected to the rear end of the first conveying channel.

[0030] In this application, it needs to be further explained that the included angle range between the two inclined planes on the feeding port is 2° - 179°, and the second pulley and the fifth pulley can be adjusted to move forward and backward to complete the adjustment of the opening angle of the discharge port and the length of the conveying channel.

[0031] The second pulley and the fifth pulley can be adjusted to move left and right to complete the adjustment of the opening angle of the discharge port and the width of the first conveying channel.

[0032] The above content can be understood as that the positions of the second pulley and the fifth pulley on the base are adjustable. After the position adjustment, they can still be positioned on the base to complete normal work, so as to improve the adaptability of this application.

[0033] Preferably, the third feeding component includes a seventh pulley, an eighth pulley, a third conveyor belt, and a third mounting base. The seventh pulley is disposed at the front end of the third mounting base, and the seventh pulley is located above the third pulley. The third pulley and the seventh pulley rotate coaxially. The eighth pulley is disposed at the rear end of the third mounting base, and the third conveyor belt is sleeved outside the seventh pulley and the eighth pulley;

[0034] The fourth feeding component includes a ninth pulley, a tenth pulley, a fourth conveyor belt, and a fourth mounting base. The ninth pulley is disposed at the front end of the fourth mounting base, and the ninth pulley is located above the fourth pulley. The fourth pulley and the ninth pulley rotate coaxially. The tenth pulley is disposed at the rear end of the fourth mounting base, and the fourth conveyor belt is sleeved outside the ninth pulley and the tenth pulley;

[0035] A second conveying channel is formed between the third conveyor belt and the fourth conveyor belt;

[0036] The eighth pulley is located at a position closer to the front or the rear on the side of the tenth pulley, so that a rear section of the third conveyor belt and the fourth conveyor belt are staggered to form a second discharge port connected to the rear end of the second conveying channel.

[0037] In this application, the rear ends of the feeding unit and the grading unit are both arranged with different lengths. It should be further explained that the staggered arrangement at the rear end of the feeding unit does not necessarily need to be synchronized with the staggered arrangement at the front end of the feeding unit. That is, the staggered arrangement of the components at the rear end of the feeding unit can be the same as the staggered arrangement at the front end of the feeding unit (if the front end of a component is relatively forward compared to another component, its rear end is also relatively forward compared to the other component), or it can be out of sync (if the front end of a component is relatively forward compared to another component, its rear end is relatively backward compared to the other component). Since the third pulley and the seventh pulley rotate coaxially, and the fourth pulley and the ninth pulley rotate coaxially, the staggered arrangement at the front end of the grading unit is synchronized with the staggered arrangement at the rear end of the feeding unit. It should be further emphasized that the staggered arrangement at the rear end of the grading unit can also be either synchronized or out of sync with the staggered arrangement at the front end of the grading unit.

[0038] Preferably, the discharging unit at least includes:

[0039] A first material receiving port, which is located below the first feeding component and extends horizontally away from the swinging flap for receiving the shorter tea leaves clamped by the first feeding component as the first preset position;

[0040] The second material receiving port is located above the first material receiving port and below the second feeding component. There is a falling space between the first feeding component and the second material receiving port. The shorter tea leaves fall through the falling space to the first material receiving port, and the second material receiving port serves as the second preset position to receive the longer tea leaves.

[0041] Preferably, a cutting component is provided below the mounting base. The cutting component includes:

[0042] It includes a first tool holder and a second tool holder. The first tool holder abuts against the second tool holder. A plurality of first cutting teeth are evenly arranged on the first tool holder, and a plurality of second cutting teeth are evenly arranged on the second tool holder. The first cutting teeth and the second cutting teeth are spaced apart in the horizontal direction. The first tool holder and the second tool holder can slide relative to each other, so that the spaced first cutting teeth and second cutting teeth overlap in the vertical direction or exchange positions in the horizontal direction to complete the shearing of the tea leaves.

[0043] In this application, it should be further explained that in the above description of the tool holder, the horizontal direction means within the plane of the tool holder, along the length direction of the tool holder. In the description of the first discharge port and the second discharge port in the text, the horizontal direction refers to within a plane horizontal to the ground and along the direction from the front end to the rear end of the overall structure in this application. This horizontal direction intersects or is perpendicular to the horizontal direction in the above description of the tool holder.

[0044] Or the cutting component includes a tool holder, a first circular blade and a second circular blade. The tool holder is connected to the mounting base and is located below a plurality of mounting bases. The first circular blade and the second circular blade are periodically distributed in sequence along the length direction of the tool holder on the tool holder, and the first circular blade and the second circular blade can rotate on the tool holder;

[0045] When the first circular blade and the second circular blade rotate, they can cut the tea leaves entering the first conveying channel.

[0046] The first circular blade and the second circular blade partially overlap in the vertical direction or are tangential to each other in the horizontal direction.

[0047] In this application, the structures of the first circular blade and the second circular blade can be understood as follows: Firstly, there is partial overlap in the vertical direction. It can be understood that in the vertical direction, the first circular blade and the second circular blade are located on different layers, and there is partial overlap between the cutting edges or contours. In terms of quantity, the two types of blades can be in a one-to-one correspondence, a one-to-many relationship, or a many-to-many relationship. When the quantity is one-to-many or many-to-many, the blades with a larger quantity are arranged at intervals in the vertical direction, and the other type of blade is located within the intervals of the blades arranged at intervals in the vertical direction and has partial overlap. For the contours being tangent, it can be understood that the two types of blades are located within the same layer, and the circles where their cutting edges are located are tangent to each other. Additionally, the layer mentioned above can be understood as the plane where the blade is located. It should be additionally noted that for the content overlapping in the vertical direction, the two types of blades mentioned above are "periodically" distributed on the tool rest. This can be understood that the combination and arrangement of the two types of blades described in this paragraph form a periodic cycle group. Although it is distributed in groups in a periodic manner, the connection between groups should also conform to the distribution explanation within the periodic cycle group of the two types of blades in this paragraph. For example, a periodic cycle group consists of one first circular blade and two second circular blades. In the vertical direction, the overlapping parts from top to bottom are the second circular blade, the first circular blade, and the second circular blade. Then, for a first circular blade in the group adjacent to the above group, there should also be an overlapping part between the two second circular blades in the above group. That is, the arrangement of the blades within the periodic cycle group is one first circular blade and two second circular blades in the horizontal direction. The connection relationship between the two groups is that the sides of the two second circular blades spaced apart in the vertical direction overlap with the first circular blade within the same group, and the other side also overlaps with the first circular blade in the adjacent group.

[0048] Preferably, the feeding unit is inclined on the main body as a whole, that is, inclined from the front end to the rear end, and the included angle between the feeding unit and the plane where the bottom of the main body is located is 1° - 50°.

[0049] Preferably, it further includes a young sprout protection component. The young sprout protection component is connected to the mounting base and is arranged above or below the cutting component. The part of the young sprout protection component located below the mounting base extends forward to the front of the cutting component;

[0050] The young sprout protection component includes:

[0051] A support frame, the support frame is connected to the mounting base and is arranged above or below the tool rest;

[0052] The bud protection plate is arranged at intervals on the support frame and is only arranged below each mounting base. One end of the bud protection plate is connected to the support frame 8, and the other end extends away from the support frame, at least extending to the front of the cutting assembly, to prevent the young sprouts located below the mounting base from being cut by the cutting assembly.

[0053] In the present application, the above content that the bud-protecting plate is only arranged below the mounting base can be understood as that the bud-protecting plate is located below the mounting base as a whole. It can be extended in the length direction of the mounting base, or in the vertical direction, or it can be an inclined extension after the above two preventions are combined. However, the bud-protecting plate cannot extend in the width direction of the mounting base, that is, the width of the bud-protecting plate cannot exceed the width of the transmission component, and it does not have a blocking effect on the tea entering the conveying channel or below the conveying channel.

[0054] In the present application, the structure in which the blade is installed on the tool holder in the above content is a common technology in the prior art. For example, the blade can be installed on a rotating shaft, and a hole for installing the rotating shaft is opened on the tool holder. The rotating shaft is installed on the tool holder through this hole. The rotating shaft can rotate on the tool holder, and the rotating shaft is connected to the output end of the driving motor. The driving motor drives the rotating shaft to rotate, so that the blade rotates. This is achieved in the following ways. The present application does not specifically limit the driving of the blade and the connection method between the blade and the tool holder.

[0055] Compared with the prior art, the present invention has the following beneficial effects:

[0056] 1. The present invention assists tea leaves to enter the first conveying channel for cutting and transportation through the swinging leaf-pushing member. The feed port that is wide at the front and narrow at the back and the staggered first conveying assembly and second conveying assembly are conducive to rapid diversion and guidance of tea leaves, thereby improving cutting efficiency and smoothness. The feeding mechanism can convey the cut tea leaves to a preset position, and through the setting of the feeding unit and the grading unit, the tea leaves can be graded according to their length, avoiding the subsequent picking process. The use of belt transportation prevents the tea leaves from being damaged during transportation, and the open discharging mechanism helps the tea leaves to fall off the belt.

[0057] 2. Each pulley in the feeding unit and grading unit of the present application is provided with multiple protrusions to increase the stability between the pulley and the conveyor belt. In addition, the second pulley and the fifth pulley are adjustable and can move forward, backward, left and right to adjust the angle of the feed port and the width of the first conveying channel, so that the present application can adapt to a variety of teas and improve the adaptability of the application itself. In addition, the second pulley and the fifth pulley are also cam settings. When the second pulley and the fifth pulley are adjusted or rotated, a better operating environment can be provided for the two, so that the conveyor belt can always be in close contact with the pulley.

[0058] 3. The top of the separator of the present application is provided with a swinging leaf piece, and the auxiliary tea leaves can be better fed into the feeding unit by the swinging body. The comb leaf part can comb and stir the tea leaves to both sides to assist the tea leaves to enter the feeding mechanism better and more efficiently along the feeding port, improving the harvesting efficiency and the net harvesting rate.

[0059] 5. The present application is provided with a bud protection plate. Through the setting of the bud protection plate, it can avoid the cutting component from shearing the tea leaves with a large inclination at a non-feeding port, so as to ensure that the tea leaves with any inclination can be sheared at the feeding port, controlling the length of the sheared tea leaves within a certain range, and improving the error tolerance rate of the swinging leaf piece to assist the tea leaves to enter the first conveying channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of the overall structure in Embodiment 1 of the present invention;

[0061] Figure 2 It is a rear view of Embodiment 1 of the present invention;

[0062] Figure 3 It is a schematic diagram of the overall structure of the feeding mechanism in Embodiment 1 of the present invention;

[0063] Figure 4 It is an exploded schematic diagram of the overall structure of the feeding mechanism in Embodiment 1 of the present invention;

[0064] Figure 5 It is a top view of a partial structure in Embodiment 1 of the present invention;

[0065] Figure 6 In Embodiment 1 of the present invention Figure 5 The partial enlarged schematic diagram shown at B;

[0066] Figure 7 In Embodiment 1 of the present invention Figure 5 The partial enlarged schematic diagram shown at C;

[0067] Figure 8 It is a top view of the overall structure of the feeding unit in Embodiment 1 of the present invention;

[0068] Figure 9 It is a top view of the overall structure of the grading unit in Embodiment 1 of the present invention;

[0069] Figure 10 It is a schematic diagram of a partial structure in Embodiment 1 of the present invention;

[0070] Figure 11 It is a schematic diagram of the overall structure of the swinging leaf piece in Embodiment 1 of the present invention;

[0071] Figure 12 It is a top view at the driven part in Embodiment 1 of the present invention;

[0072] Figure 13 It is the top view at the driven member in Embodiment 2 of the present invention;

[0073] Figure 14 It is a schematic diagram of the positional and structural relationship between the first circular blade and the second circular blade in Embodiment 3 of the present invention;

[0074] Figure 15 It is a schematic diagram of the positional and structural relationship between the first circular blade and the second circular blade in Embodiment 4 of the present invention

[0075] Figure 16 It is a schematic diagram of the positional and structural relationship between the first circular blade and the second circular blade in Embodiment 5 of the present invention

[0076] In the figure: main body 1, swing leaf member 2, first feeding assembly 3, second feeding assembly 4, first conveying channel 5, feeding port 6, third feeding assembly 7, fourth feeding assembly 8, second conveying channel 9, protrusion 10, first belt pulley 11, second belt pulley 12, third belt pulley 13, first conveyor belt 14, first mounting base 15, fourth belt pulley 16, fifth belt pulley 17, sixth belt pulley 18, second conveyor belt 19, second mounting base 20, rotating end 21, free end 22, driven member 23, first discharge port 24, seventh belt pulley 25, eighth belt pulley 26, third conveyor belt 27, third mounting base 28, ninth belt pulley 29, tenth belt pulley 30, fourth conveyor belt 31, fourth mounting base 32, second discharge port 33, first material receiving port 34, second material receiving port 35, first tool rest 36, second tool rest 37, first cutter teeth 38, second cutter teeth 39, first inclined surface 40, second inclined surface 41, comb leaf part 42, bud protecting plate 43, third surface 44, first circular blade 45, second circular blade 46, elastic member 47. Detailed implementation manners

[0077] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the attached Figure 1-16 , in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative work shall fall within the protection scope of the present invention.

[0078] In the description of the present invention, it should be understood that: the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0079] Please refer to Figure 1-16 , the embodiments of the present invention:

[0080] Embodiment 1:

[0081] As Figure 1 shown: A stepped conveyor type tea harvesting and grading integrated machine, including a main body 1, at least one feeding mechanism is provided on the main body 1, a swinging leaf member 2 is provided at the front end of the feeding mechanism, a discharging unit is connected to the rear end of the feeding mechanism, and a cutting assembly is provided below the feeding mechanism;

[0082] The swinging leaf member 2 swings to assist the tea leaves to enter the feeding mechanism. The feeding mechanism clamps and transports the tea leaves into the discharging unit. Before the clamped and transported tea leaves reach the discharging unit, the cutting assembly trims the tea leaves.

[0083] In this embodiment, through the setting of the swinging leaf member 2, during tea picking, the tea leaves can be actively combed and separated to both sides, so that the tea leaves can smoothly enter the conveying channel, be centrally picked, improve the efficiency of tea picking and sorting, and avoid the phenomenon that due to the density of tea leaves, the tea leaves are pushed down and bent, resulting in difficulty in being clamped by the feeding unit, thereby affecting the harvesting and picking rate.

[0084] As Figures 3-9 shown: The feeding mechanism includes at least one feeding unit and a grading unit. The grading unit is arranged at a position behind and above the feeding unit;

[0085] The feeding unit includes a first feeding component 3 and a second feeding component 4. A first conveying channel 5 and a feeding port 6 are formed between the first feeding component 3 and the second feeding component 4. The feeding port 6 gradually contracts from the front end of the feeding unit to the first conveying channel 5, and the feeding port 6 is surrounded by at least two inclined surfaces;

[0086] The grading unit corresponds to the feeding unit one by one. The grading unit includes a third feeding component 7 and a fourth feeding component 8. The third feeding component 7 is arranged at a position behind and above the first feeding component 3, and the fourth feeding component 8 is arranged at a position behind and above the second feeding component 4. A second conveying channel 9 is formed between the third feeding component 7 and the fourth feeding component 8;

[0087] The tea leaves are gathered into the first conveying channel 5 from the feeding port 6. The feeding unit clamps and transports the tea leaves through the first feeding component 3 and the second feeding component 4. The shorter tea leaves fall to the first preset position in the discharging unit from the rear end of the first conveying channel 5, while the longer tea leaves are continuously clamped and transported along the second conveying channel 9 to the second preset position in the discharging unit, realizing the grading of tea leaves of different lengths.

[0088] AsFigure 9 As shown: each set of feeding components includes a conveyor belt and multiple pulleys. The conveyor belt is sleeved outside the multiple pulleys to form a loop. Multiple protrusions 10 are provided on the outer side walls of the pulleys to prevent the conveyor belt from falling off the pulleys.

[0089] In this embodiment, the setting of the protrusion 10 can make the contact between the conveyor belt and the pulley more stable in the vertical direction during transmission, preventing the conveyor belt from falling off the pulley. In addition, in the horizontal direction, it can increase the contact force between the conveyor belt and the pulley, further increasing the stability of the two during transmission. The setting of the protrusion 10 also increases the contact area between the pulley and the conveyor belt, thereby enhancing the stability of the contact between the pulley and the conveyor belt.

[0090] like Figures 3-6 As shown in FIG: the first feeding assembly 3 includes: a first pulley 11, a second pulley 12, a third pulley 13, a first conveyor belt 14 and a first mounting base 15, the first pulley 11 is arranged on the first mounting base 15 at a front end position, the third pulley 13 is arranged on the first mounting base 15 at a rear end position, the second pulley 12 is located between the first pulley 11 and the third pulley 13, the first conveyor belt 14 is sleeved outside the first pulley 11, the second pulley 12 and the third pulley 13, the distance between the third pulley 13 and the second pulley 12 is greater than the distance between the first pulley 11 and the second pulley 12, the distance between the second pulley 12 and the third pulley 13 and the first conveying channel 5 is the same, and this distance is less than the distance between the first pulley 11 and the first conveying channel 5;

[0091] The second feeding assembly 4 includes a fourth pulley 16, a fifth pulley 17, a sixth pulley 18, a second conveyor belt 19 and a second mounting base 20, the fourth pulley 16 is arranged on the second mounting base 20 at a front end position, the sixth pulley 18 is arranged on the second mounting base 20 at a rear end position, the fifth pulley 17 is located between the fourth pulley 16 and the sixth pulley 18, the second conveyor belt 19 is sleeved outside the fourth pulley 16, the fifth pulley 17 and the sixth pulley 18, the distance between the sixth pulley 18 and the fifth pulley 17 is greater than the distance between the fourth pulley 16 and the fifth pulley 17, the distance between the fifth pulley 17 and the sixth pulley 18 and the first conveying channel 5 is the same, and this distance is less than the distance from the fourth pulley 16 to the first conveying channel 5;

[0092] The conveyor belt between the first pulley 11 and the second pulley 12 forms an inclined plane that encloses the feed inlet 6. The conveyor belt between the fourth pulley 16 and the fifth pulley 17 forms another inclined plane that encloses the feed inlet 6. A first conveying channel 5 is formed between the first conveyor belt 14 between the second pulley 12 and the third pulley 13 and the second conveyor belt 19 between the fifth pulley 17 and the sixth pulley 18.

[0093] As Figure 8 、 11 shown in FIGS. 12: The adjacent feeding units and the grading units are symmetrically arranged. The first conveying channels 5 in each feeding unit are parallel to each other, and the second conveying channels 9 in each grading unit are parallel to each other.

[0094] Mounting bases are provided in both the feeding unit and the grading unit. The mounting bases are located above several pulleys. The pulleys are rotatably connected to the mounting bases. The swinging blade member 2 is provided on the top of the mounting base. The swinging blade member 2 is provided with a rotating end 21, a free end 22, and a driven member 23. The rotating end 21 is rotatably connected to the mounting base. The free end 22 extends away from the mounting base to the outside of the mounting base. The driven member 23 is located between the free end 22 and the rotating end 21 of the swinging blade member 2.

[0095] Eccentric wheel portions are provided on both the second pulley 12 and the fifth pulley 17. The swinging blade member 2 above the first feeding assembly is simultaneously abutted against the eccentric wheel portions on two adjacent and synchronously rotating second pulleys 12 through the driven member 23. The swinging blade member 2 above the second feeding assembly is simultaneously abutted against the eccentric wheel portions on two adjacent and synchronously rotating fifth pulleys 17 through the driven member 23. The swinging of the swinging blade member 2 is driven respectively by the rotation of the second pulley 12 and the fifth pulley 17.

[0096] In this embodiment, it should be further explained that, in the above text, taking the second pulley 12 as an example, the driven member 23 needs to abut against the eccentric wheel portions on two symmetrically arranged second pulleys 12, and these two second pulleys 12 also need to abut against their respective corresponding first conveyor belts 14. That is to say, it can be understood that the position of the driven member 23 is located between the two first feeding assemblies 37. However, these two second pulleys 12 need to abut against their respective first conveyor belts 14 within their respective first feeding assemblies 3. Therefore, in order to ensure that the eccentric wheel portions can complete the above connection, in this embodiment, the abutting positions of the eccentric wheel portions and the driven member 23 are set at different heights from the abutting positions of the second pulley and the first conveyor belt 14. That is, in this embodiment, the abutting positions of the eccentric wheel portions and the driven member 23 are set above the abutting positions of the second pulley and the first conveyor belt 14.

[0097] A comb leaf portion 42 is provided on the free end 22. One end of the comb leaf portion 42 is connected to the swing end, and the other end is inclined downward away from the base, and the width of the comb leaf portion 42 gradually decreases along the inclined direction.

[0098] In this embodiment, the arrangement of the comb leaf portion 42, firstly, the gradually decreasing width in the vertical direction can better extend into the gaps of the tea leaves, improving the combing efficiency of the swing leaf member 2 on the tea leaves. And the decreasing width in the horizontal direction enables the tea leaves to enter the first conveying channel 5 more smoothly.

[0099] As Figure 9 shown: The front end of the first feeding component 3 is located at a position behind the side of the front end of the second feeding component 4. The horizontal position of the rotation center of the second pulley 12 is located between the rotation centers of the fifth pulley 17 and the sixth pulley 18. The horizontal position of the rotation center of the first pulley 11 is located between the rotation centers of the fourth pulley 16 and the fifth pulley 17 to form a feeding port 6 that is wider at the front and narrower at the rear;

[0100] The third pulley 13 is located at a position in front of or behind the side of the sixth pulley 18, so that a section at the rear of the first conveyor belt 14 and the second conveyor belt 19 are staggered to form a first discharge port 24 connected to the rear end of the first conveying channel 5.

[0101] In this embodiment, from the above content, it can be understood that the three surfaces of the feeding port 6 are respectively: the first inclined surface 40 is a section of the first conveyor belt 14 inclined between the first pulley 11 and the second pulley 12, the second inclined surface 41 is one end of the second conveyor belt 19 inclined between the fourth pulley 16 and the fifth pulley 17, and the third surface 44 is the second pulley 12 between the second pulley 12 and the fifth pulley 17.

[0102] In this application, it needs to be further explained that the included angle range between the two inclined surfaces on the feeding port 6 is 30° to 90°, and the second pulley 12 and the fifth pulley 17 can move back and forth to complete the adjustment of the opening angle of the discharge port and the length of the conveying channel.

[0103] The second pulley 12 and the fifth pulley 17 can move left and right to complete the adjustment of the opening angle of the discharge port and the width of the first conveying channel 5.

[0104] As Figures 5-9As shown in the figure: The third feeding component 7 includes a seventh pulley 25, an eighth pulley 26, a third conveyor belt 27 and a third mounting base 28. The seventh pulley 25 is arranged at the front end position of the third mounting base 28, and the seventh pulley 25 is located above the third pulley 13. The third pulley 13 rotates coaxially with the seventh pulley 25. The eighth pulley 26 is arranged at the rear end position of the third mounting base 28. The third conveyor belt 27 is sleeved outside the seventh pulley 25 and the eighth pulley 26;

[0105] The fourth feeding component 8 includes a ninth pulley 29, a tenth pulley 30, a fourth conveyor belt 31 and a fourth mounting base 32. The ninth pulley 29 is arranged at the front end position of the fourth mounting base 32, and the ninth pulley 29 is located above the fourth pulley 16. The fourth pulley 16 rotates coaxially with the ninth pulley 29. The tenth pulley 30 is arranged at the rear end position of the fourth mounting base 32. The fourth conveyor belt 31 is sleeved outside the ninth pulley 29 and the tenth pulley 30;

[0106] A second conveying channel 9 is formed between the third conveyor belt 27 and the fourth conveyor belt 31;

[0107] The eighth pulley 26 is located at a position closer to the front or the rear on the side of the tenth pulley 30, so that a rear section of the third conveyor belt 27 and the fourth conveyor belt 31 are staggered, forming a second discharge port 33 connected to the rear end of the second conveying channel 9.

[0108] Both the shorter tea leaves and the longer tea leaves are clamped and transported by the first conveyor belt 14 in the first feeding component 3 and the second conveyor belt 19 in the second feeding component 4. When transported to the tail of the feeding unit, the shorter tea leaves fall to a preset position, while the longer tea leaves enter the second conveying channel and are continuously transported to another preset position by the grading unit, realizing the screening of the tea leaves.

[0109] In this embodiment, it can be understood that the upper end of the pulley is arranged on the mounting base, and a mounting base is provided in each feeding unit.

[0110] In this embodiment, for the convenience of production and assembly, all the conveying components of this application are set to the same model (same size and shape). Therefore, in this embodiment, due to the staggered arrangement at the front end of the conveying unit, the front end of the first conveying component is behind the side of the front end of the second conveying component, so the staggering at the front end of the feeding unit, the rear end of the feeding unit, the front end of the grading unit and the rear end of the grading unit are synchronously set.

[0111] As Figure 2 shown: The discharging unit at least includes:

[0112] The first material receiving port 34 is located below the first feeding assembly 3 and extends horizontally away from the swing blade member 2 for receiving the shorter tea leaves held by the first feeding assembly 3, serving as the first preset position.

[0113] The second material receiving port 35 is located above the first material receiving port 34 and below the second feeding assembly 4. There is a falling space between the first feeding assembly 3 and the second material receiving port 35. The shorter tea leaves fall through the falling space to the first material receiving port 34, and the second material receiving port 35 serves as the second preset position for receiving the longer tea leaves.

[0114] In this embodiment, the second material receiving port 35 is similar to the first material receiving port 34 and also extends horizontally. When the shorter tea leaves separate from the first conveying channel 5 and fall into the first material receiving port 34 through the falling space, the longer tea leaves continue to be transported by the second feeding assembly 4 to above the second material receiving port 35. When the longer tea leaves separate from the second conveying channel 9, they will fall into the second material receiving port 35 to collect the sieved tea leaves.

[0115] As Figure 10 shown: A cutting assembly is provided below the mounting base, and the cutting assembly includes:

[0116] It includes a first tool holder 36 and a second tool holder 37. The first tool holder 36 abuts against the second tool holder 37. A number of first cutter teeth 38 are evenly arranged on the first tool holder 36, and a number of second cutter teeth 39 are evenly arranged on the second tool holder 37. The first cutter teeth 38 and the second cutter teeth 39 are spaced apart in the horizontal direction. The first tool holder 36 and the second tool holder 37 can slide relative to each other, so that the spaced first cutter teeth 38 and second cutter teeth 39 overlap in the vertical direction or exchange positions in the horizontal direction to complete the shearing of the tea leaves.

[0117] As Figure 1 and 2 shown: The whole feeding unit is inclined on the main body 1, that is, inclined from the front end to the rear end, and the included angle between the feeding unit and the plane where the bottom of the main body 1 is located is 5° - 35°.

[0118] As Figures 3-4 shown: A bud protection plate 43 is provided below the feeding mechanism. The bud protection plate 43 is arranged at the bottom of the feeding mechanism, below the swing blade member 2, and in front of the cutting assembly, so that the cutting assembly only shears the tea leaves at the feeding port 6 to control the length of the tea leaves after being cut within a controllable range.

[0119] As Figure 4As shown: In this embodiment, the first mounting base and the third mounting base are integrally provided, the second mounting base and the fourth mounting base are integrally provided, the first mounting base is provided at the upper end of the first feeding component, the third mounting base is provided at the lower end of the third feeding component, the second mounting base is provided at the upper end of the second feeding component, and the fourth feeding component is provided at the lower end of the fourth feeding component.

[0120] Embodiment 2:

[0121] In this embodiment, the difference from Embodiment 1 is as follows:

[0122] As Figure 13 shown: The adjacent feeding units and the grading units are symmetrically arranged, and the first conveying channels 5 in each feeding unit are parallel to each other, and the second conveying channels 9 in each grading unit are parallel to each other;

[0123] Mounting bases are provided in both the feeding unit and the grading unit. The mounting base is arranged above a plurality of belt pulleys. The belt pulleys are rotatably connected to the mounting base. The swinging blade member 2 is arranged on the top of the mounting base, and a rotating end 21, a free end 22 and a driven member 23 are arranged on the swinging blade member 2. The rotating end 21 is rotatably connected to the mounting base. The free end 22 extends away from the mounting base to the outside of the mounting base, and the driven member 23 is located between the free end 22 and the rotating end 21 of the swinging blade member 2;

[0124] Eccentric parts are provided on both the second belt pulley 12 and the fifth belt pulley 17. An elastic member 47 is further provided on the mounting base. The swinging blade member 2 above the first feeding component abuts against the eccentric part on a second belt pulley 12 through the driven member 23. The elastic member 47 on the mounting base corresponding to the first feeding component 3 abuts against the driven member 23 on the side away from the second belt pulley 12. The swinging blade member 2 above the second feeding component abuts against the eccentric part on a fifth belt pulley 17 through the driven member 23. The elastic member 47 on the mounting base corresponding to the second feeding component 4 abuts against the driven member 23 on the side away from the fifth belt pulley 17. The swinging drive of the swinging blade member 2 is completed by the rotation of the second belt pulley 12 and the fifth belt pulley 17 respectively. It should be noted that the eccentric part and its respective belt pulley are in follow-up motion.

[0125] In this embodiment, when the second pulley 12 or the fifth pulley 17 is rotating, when the most prominent part of the eccentric wheel portion thereon presses the driven member 23 away, there is no other eccentric wheel portion on the second pulley 12 or the fifth pulley 17 that presses the driven member back to its original position, such that other parts of this eccentric wheel portion on the second pulley 12 or the fifth pulley 17 cannot complete the pressing against the driven member 23. The setting of the elastic member 47, specifically, the elastic member 47 is set as a spring, and the spring can press the driven member 23 that has been pressed away from the second pulley 12 or the fifth pulley 17 towards the pulley, so that the driven member 23 can always press against the eccentric wheel portion on this pulley. With the cooperation of the eccentric wheel portion and the elastic member 47, as the eccentric wheel portion rotates, the swinging of the swinging blade member 2 can be completed.

[0126] Embodiment 3:

[0127] In this embodiment, the difference from Embodiment 1 is:

[0128] As Figure 14 shown: The arrangement of the first circular blade 45 and the second circular blade 46 is such that the contours of the two blades are tangent in the horizontal direction, and the order is in the order of the first circular blade 45 and the second circular blade 46, and the connection relationship between groups (the smallest cycle unit) in the periodic cycle distribution is also tangent, that is, the right side of the first circular blade 45 is tangent to the left side of the second circular blade 46, and the right side of the second circular blade 46 is tangent to the left side of the first circular blade 45 in the next "periodic cycle group". In this embodiment, the arrangement of the two circular blades can also be understood as that both sides of each first circular blade 45 are tangent to two second circular blades 46, and both sides of each second circular blade 46 are tangent to two first circular blades 45. And the tangent points of the two circular blades are located directly below the first conveying channel 5.

[0129] Embodiment 4:

[0130] In this embodiment, the difference from Embodiment 1 is:

[0131] As Figure 15As shown: In this embodiment, in the minimum unit group that circulates in the periodic distribution, a first circular blade 45 and two second circular blades 46 are arranged in sequence. Vertically, the plane where the first circular blade 45 is located is between the planes where the two second circular blades 46 are located, and the first circular blade 45 overlaps with both of the two second circular blades 46; and the connection between the minimum unit groups arranged in a cycle in each periodic distribution also needs to meet the above conditions. That is to say, taking two groups as an example, from left to right, they are a first circular blade 45 (in the first group), two second circular blades 46 (in the first group), a first circular blade 45 (in the second group), and two second circular blades 46 (in the second group). And the structure of the two circular blades in the first group and the first circular blade 45 in the second group in the vertical direction also needs to meet the condition that "the plane where the first circular blade 45 is located is between the planes where the two second circular blades 46 are located, and the first circular blade 45 overlaps with both of the two second circular blades 46". Therefore, the blade arrangement method in this embodiment can be summarized as that two second circular blades 46 are arranged on both sides of each first circular blade 45 and there is an overlapping part, or it can be understood that a first circular blade 45 is arranged on both sides of every two second circular blades 46, and there is an overlapping part between the second circular blade 46 and the first circular blade 45.

[0132] Embodiment 5:

[0133] As Figure 16 shown: In this embodiment, the minimum unit group arranged periodically only includes a first circular blade 45 and a second circular blade 46. Vertically, there is an overlapping part between the first circular blade 45 and the second circular blade 46; the overall blade arrangement can be understood as that a second circular blade 46 is arranged on both sides of each first circular blade 45, and there is an overlapping part between the first circular blade 45 and the second circular blade 46 in the vertical direction, or it can be understood that a first circular blade 45 is arranged on both sides of each second circular blade 46, and there is an overlapping part between the first circular blade 45 and the second circular blade 46 in the vertical direction.

[0134] Embodiment 6:

[0135] In this embodiment, the support frame is arranged below the cutting assembly (tool rest and circular blade), and one end of the bud protection plate below each mounting base 4 away from the support frame extends in front of the circular blade, that is to say, the bud protection plate extends obliquely upward towards the front of the whole device, extends to the front upper part of the circular blade, and is located below the leaf deflecting part 13.

[0136] Embodiment 7:

[0137] In this embodiment, the swing limiting member 14 is disposed on the upper end surface of the mounting base 4 and is located on both sides of the swing blade member 2 respectively, and is used to limit the swing angle of the swing blade member 2.

[0138] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described 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, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced by the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0139] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner 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. A stepped conveyor type integrated tea harvesting and grading machine, characterized in that, It includes a main body (1), at least one feeding mechanism is arranged on the main body (1), a swinging flap member (2) is arranged at the front end of the feeding mechanism, a discharging unit is connected to the rear end of the feeding mechanism, and a cutting assembly is arranged below the feeding mechanism; The swinging flap member (2) swings to assist the tea leaves to enter the feeding mechanism. The feeding mechanism clamps and transports the tea leaves into the discharging unit. Before the clamped and transported tea leaves reach the discharging unit, the cutting assembly trims the tea leaves; It further includes a young bud protection assembly. The young bud protection assembly is arranged above or below the cutting assembly, and the front end of the young bud protection assembly at least extends in front of the cutting assembly to prevent the young buds located below the swinging flap member (2) from being cut by the cutting assembly.

2. The step-feed type tea harvesting and grading integrated machine according to claim 1, wherein The feeding mechanism includes at least one feeding unit and a grading unit. The grading unit is arranged at a position behind and above the feeding unit; The feeding unit includes a first feeding component (3) and a second feeding component (4). A first conveying channel (5) and a feeding port (6) are formed between the first feeding component (3) and the second feeding component (4). The feeding port (6) gradually contracts from the front end of the feeding unit to the first conveying channel (5), and the feeding port (6) is at least surrounded by two inclined planes; The grading unit corresponds to the feeding unit one by one. The grading unit includes a third feeding component (7) and a fourth feeding component (8). The third feeding component (7) is arranged at a position behind and above the first feeding component (3), and the fourth feeding component (8) is arranged at a position behind and above the second feeding component (4). A second conveying channel (9) is formed between the third feeding component (7) and the fourth feeding component (8); The tea leaves are gathered into the first conveying channel (5) from the feeding port (6). The feeding unit clamps and transports the tea leaves through the first feeding component (3) and the second feeding component (4). The shorter tea leaves fall to a first preset position in the discharging unit from the rear end of the first conveying channel (5), while the longer tea leaves are continuously clamped and transported along the second conveying channel (9) to a second preset position in the discharging unit, realizing the grading of tea leaves of different lengths.

3. The step-feed type tea leaf harvesting and grading integrated machine according to claim 2, characterized in that, Each set of feeding components includes a conveyor belt and a plurality of pulleys. The conveyor belt is sleeved outside several pulleys to form a loop, and a plurality of protrusions (10) are arranged on the outer side wall of the pulley to prevent the conveyor belt from falling off the pulley.

4. The stepped conveyor type tea harvesting and grading integrated machine according to claim 3, characterized in that, The first feeding component (3) includes: a first pulley (11), a second pulley (12), a third pulley (13), a first conveyor belt (14), and a first mounting base (15). The first pulley (11) is arranged at the front-end position on the first mounting base (15), the third pulley (13) is arranged at the rear-end position on the first mounting base (15), the second pulley (12) is located between the first pulley (11) and the third pulley (13), the first conveyor belt (14) is sleeved outside the first pulley (11), the second pulley (12), and the third pulley (13). The distance between the third pulley (13) and the second pulley (12) is greater than the distance between the first pulley (11) and the second pulley (12). The distances from the second pulley (12) and the third pulley (13) to the first conveying channel (5) are the same, and this distance is less than the distance from the first pulley (11) to the first conveying channel (5). The second feeding component (4) includes a fourth pulley (16), a fifth pulley (17), a sixth pulley (18), a second conveyor belt (19), and a second mounting base (20). The fourth pulley (16) is arranged at the front-end position on the second mounting base (20), the sixth pulley (18) is arranged at the rear-end position on the second mounting base (20), the fifth pulley (17) is located between the fourth pulley (16) and the sixth pulley (18), the second conveyor belt (19) is sleeved outside the fourth pulley (16), the fifth pulley (17), and the sixth pulley (18). The distance between the sixth pulley (18) and the fifth pulley (17) is greater than the distance between the fourth pulley (16) and the fifth pulley (17). The distances from the fifth pulley (17) and the sixth pulley (18) to the first conveying channel (5) are the same, and this distance is less than the distance from the fourth pulley (16) to the first conveying channel (5). The conveyor belt between the first pulley (11) and the second pulley (12) forms an inclined plane that encloses the feeding port (6). The conveyor belt between the fourth pulley (16) and the fifth pulley (17) forms another inclined plane that encloses the feeding port (6). A first conveying channel (5) is formed between the first conveyor belt (14) between the second pulley (12) and the third pulley (13) and the second conveyor belt (19) between the fifth pulley (17) and the sixth pulley (18).

5. A stepped conveyor type tea harvesting and grading integrated machine according to claim 4, characterized in that, The adjacent feeding units and the grading units are symmetrically arranged, and the first conveying channels (5) in each feeding unit are parallel to each other, and the second conveying channels (9) in each grading unit are parallel to each other. An installation base is provided in both the feeding unit and the grading unit. The installation base is disposed above a plurality of belt pulleys, and the belt pulleys are rotatably connected to the installation base. The swinging vane member (2) is disposed on the top of the installation base, and a rotating end (21), a free end (22) and a driven wheel (23) are provided on the swinging vane member (2). The rotating end (21) is rotatably connected to the installation base. The free end (22) extends away from the installation base to the outside of the installation base. The driven wheel (23) is located between the free end (22) and the rotating end (21) of the swinging vane member (2). Eccentric wheel portions are provided on both the second belt pulley (12) and the fifth belt pulley (17). An elastic member is further provided on the installation base. The swinging vane member (2) above the first feeding assembly (3) abuts against the eccentric wheel portion on a second belt pulley (12) through the driven wheel (23). The elastic member on the installation base corresponding to the first feeding assembly (3) abuts against the side of the driven wheel (23) away from the second belt pulley (12). The swinging vane member (2) above the second feeding assembly (4) abuts against the eccentric wheel portion on a fifth belt pulley (17) through the driven wheel (23). The elastic member on the installation base corresponding to the second feeding assembly (4) abuts against the side of the driven wheel (23) away from the fifth belt pulley (17). The swinging drive of the swinging vane member (2) is completed by the rotation of the second belt pulley (12) and the fifth belt pulley (17) respectively.

6. The step conveyor type tea harvesting and grading integrated machine according to claim 4, wherein, The adjacent feeding units and the grading units are symmetrically arranged, and the first conveying channels (5) in each feeding unit are parallel to each other. The second conveying channels (9) in each grading unit are parallel to each other. An installation base is provided in both the feeding unit and the grading unit. The installation base is disposed above or below a plurality of belt pulleys, and the belt pulleys are rotatably connected to the installation base. The swinging vane member (2) is disposed on the top of the installation base, and a rotating end (21), a free end (22) and a driven wheel (23) are provided on the swinging vane member (2). The rotating end (21) is rotatably connected to the installation base. The free end (22) extends away from the installation base to the outside of the installation base. The driven wheel (23) is located between the free end (22) and the rotating end (21) of the swinging vane member (2). Eccentric wheel portions are provided on both the second belt pulley (12) and the fifth belt pulley (17). The swinging vane member (2) above the first feeding assembly (3) abuts against the eccentric wheel portions on two adjacent and synchronously rotating second belt pulleys (12) through the driven wheel (23) at the same time. The swinging vane member (2) above the second feeding assembly (4) abuts against the eccentric wheel portions on two adjacent and synchronously rotating fifth belt pulleys (17) through the driven wheel (23) at the same time. The swinging drive of the swinging vane member (2) is completed by the rotation of the second belt pulley (12) and the fifth belt pulley (17) respectively.

7. A stepped conveyor type integrated tea harvesting and grading machine according to claim 5 or 6, characterized in that, The front end of the first feeding component (3) is located at a position behind and to the side of the front end of the second feeding component (4); The third pulley (13) is located at a position in front of or behind the side of the sixth pulley (18), so that a rear section of the first conveyor belt (14) is staggered from a rear section of the second conveyor belt (19), forming a first discharge port (24) connected to the rear end of the first conveying channel (5).

8. A stepped conveyor type tea harvesting and grading integrated machine according to claim 7, characterized in that, The third feeding component (7) includes a seventh pulley (25), an eighth pulley (26), a third conveyor belt (27) and a third mounting base (28). The seventh pulley (25) is arranged at the front end position of the third mounting base (28), and the seventh pulley (25) is located above the third pulley (13). The third pulley (13) and the seventh pulley (25) rotate coaxially. The eighth pulley (26) is arranged at the rear end position of the third mounting base (28), and the third conveyor belt (27) is sleeved outside the seventh pulley (25) and the eighth pulley (26); The fourth feeding component (8) includes a ninth pulley (29), a tenth pulley (30), a fourth conveyor belt (31) and a fourth mounting base (32). The ninth pulley (29) is arranged at the front end position of the fourth mounting base (32), and the ninth pulley (29) is located above the fourth pulley (16). The fourth pulley (16) and the ninth pulley (29) rotate coaxially. The tenth pulley (30) is arranged at the rear end position of the fourth mounting base (32), and the fourth conveyor belt (31) is sleeved outside the ninth pulley (29) and the tenth pulley (30); A second conveying channel (9) is formed between the third conveyor belt (27) and the fourth conveyor belt (32); The eighth pulley (26) is located at a position in front of or behind the side of the tenth pulley (30), so that a rear section of the third conveyor belt (27) is staggered from a rear section of the fourth conveyor belt (32), forming a second discharge port (33) connected to the rear end of the second conveying channel (9).

9. The stepped conveyor type tea harvesting and grading integrated machine according to claim 8, characterized in that, The discharging unit at least includes: A first material receiving port (34), which is located below the first feeding component (3) and extends horizontally away from the swinging blade member (6), and is used for receiving the shorter tea leaves clamped by the first feeding component (3) as the first preset position; A second material receiving port (35), which is located above the first material receiving port (34), and the second material receiving port (35) is located below the second feeding component. There is a falling space between the first feeding component (3) and the second material receiving port (35). The shorter tea leaves fall through the falling space to the first material receiving port (34), and the second material receiving port (35) receives the longer tea leaves as the second preset position.

10. A stepped conveyor type tea harvesting and grading integrated machine according to claim 9, characterized in that, A cutting component is arranged below the mounting base, and the cutting component includes: It includes a first tool rest (36) and a second tool rest (37). The first tool rest (36) abuts against the second tool rest (37). A number of first cutting teeth (38) are evenly arranged on the first tool rest (36), and a number of second cutting teeth (39) are evenly arranged on the second tool rest (37). The first cutting teeth (38) and the second cutting teeth (39) are spaced apart in the horizontal direction. The first tool rest (36) and the second tool rest (37) can slide relative to each other, so that the spaced-apart first cutting teeth (38) and second cutting teeth (39) overlap in the vertical direction or exchange positions in the horizontal direction to complete the shearing of tea leaves.

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