Tea winnowing machine and tea production method

Abstract

According to the tea leaf winnowing machine and the tea leaf production method, the first driving assembly is used for driving the roller to rotate, so that tea leaves are turned over, stones in the tea leaves can be separated out of the roller, and preliminary screening of the tea leaves is achieved; when the tea leaves are overturned in the roller, the tea leaves are conveyed to the material screening frame through the material blocking plate, and the swinging mechanism drives the material screening frame to swing up and down in a reciprocating manner, so that stones and granular impurities in the tea leaves are subjected to secondary screening, and the stones and the impurities fall onto the connection table; then the fallen stones and impurities are blown out of the roller through a second air outlet hole of the air distribution piece; the tea leaves on the screening frame move towards the scattering part while swinging, the second scattering structure reciprocates in the axial direction of the scattering pipe, so that the clustered tea leaves are separated, after the tea leaves fall off from the screening frame, the tea leaves are blown into the winnowing box through airflow blown out of the first air outlet holes of the air distribution part, and the winnowing effect of the tea leaves is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of tea production, and particularly to a tea winnowing machine and a tea production method. Background Art

[0002] After picking, the tea contains a mixture of single buds, one bud with one leaf, one bud with two leaves, one bud with three or four leaves, single leaves, and residual stones, etc. It is necessary to use a winnowing machine to classify the tea. Usually, the mixed tea needs to be conveyed upward by a hoist to the top position of the winnowing box, and then the tea dropped by the hoist is blown by a blower. According to the different weights of the tea, the tea will fall at different positions to achieve the sorting of the tea.

[0003] In this case, the stones in the tea are still mixed inside the tea after winnowing and need to be manually screened later.

[0004] In order to solve the problem of separating stones from tea, a drum sieve is usually used for stone screening, and then the tea is sent into the winnowing machine. Among them, the winnowing machine and the drum sieve are arranged in sequence, which will make the tea production line too long and occupy a certain production space. Therefore, how to design a tea winnowing machine that integrates stone screening and tea winnowing has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] The present disclosure provides a tea winnowing machine and a tea production method to solve the problem of separating stones from tea.

[0006] A tea winnowing machine is provided. The winnowing machine is used to screen the material to be screened. The winnowing machine includes: A winnowing box, in which a plurality of screening positions are sequentially arranged along a first direction; A first screening component, which is located at one end of the winnowing box along the first direction. The first screening component is communicated with the winnowing box, and the first screening component has different distances from each screening position in the first direction; A first driving component, which is rotationally connected to the first screening component to remove impurities in the material to be screened; A second screening component, which is arranged inside the first screening component and is used to screen the material to be screened that has been screened by the first screening component. Among them, The second screening component further includes an air distribution component. A gas distribution part, which is used to drive the object to be screened to move in the first direction. Under the blowing of the gas distribution part, the object to be screened forms multiple parabolas moving in the first direction according to different densities. The parabolas have different landing points in the first direction, and the landing points of the parabolas are correspondingly set with the screening positions.

[0007] In an implementable embodiment, the second screening component includes A dispersing part and a screening rack. The dispersing part is located on one side of the screening rack. The screening rack is used to screen impurities in the object to be screened. The side of the screening rack close to the dispersing part has a screening surface, and the object to be screened is carried on the screening surface. The dispersing part moves relative to the screening surface to disperse the object to be screened.

[0008] In an implementable embodiment, the dispersing part includes A first dispersing structure and a first driving part. The first driving part is connected to the first dispersing structure to drive the first dispersing structure to form a circumferential rotation relative to the screening surface to disperse the object to be screened; A second dispersing structure and a second driving part. The second driving part is connected to the second dispersing structure to drive the second dispersing structure to form a circumferential rotation and / or a lateral movement relative to the screening surface to disperse the object to be screened.

[0009] In an implementable embodiment, the first dispersing structure includes A dispersing pipe and a first dispersing support rod. The first dispersing support rod is connected to the dispersing pipe, and the first dispersing support rod extends along the radial direction of the dispersing pipe; wherein, The first driving part is connected to the dispersing pipe to drive the dispersing pipe to rotate; The second dispersing structure includes A push rod and a second dispersing support rod. A driving cavity is transversely arranged in the dispersing pipe. The push rod is located in the driving cavity. A sliding groove is transversely arranged on the dispersing pipe, and the sliding groove is communicated with the driving cavity. The second dispersing support rod passes through the sliding groove and is connected to the push rod; The second driving part includes A first driving structure and a second driving structure. The first driving structure and the second driving structure are located at both ends of the push rod in the transverse direction. The first driving structure and the second driving structure are used to drive the push rod to move transversely in the driving cavity.

[0010] In an implementable embodiment, the second screening component further includes The docking platform is located at one side of the screening frame, and the screening frame is located between the docking platform and the scattered parts. The docking platform is used to carry impurities screened by the screening frame, and a first angle is formed between the docking platform and the horizontal plane.

[0011] In one embodiment, the gas distribution component includes: Gas source; A gas distribution box is provided with a gas distribution cavity, and an air inlet and a first air outlet are respectively provided at two ends of the gas distribution box along the first direction, the air inlet and the first air outlet are connected to the gas distribution cavity, a first gas flow path is formed in the gas distribution cavity from the air inlet to the first air outlet, the gas source forms an airflow, and the airflow is blown toward the air separation box through the first gas flow path.

[0012] In one embodiment, the gas distribution box further includes: a second gas outlet hole, the second gas outlet hole is connected to the gas distribution cavity, a second gas flow channel is formed in the gas distribution cavity from the gas inlet hole to the second gas outlet hole, and the gas flow is blown toward the docking station through the second gas flow channel; The splitter plate is located between the first gas flow channel and the second gas flow channel to divide the airflow into a first airflow and a second airflow, the first airflow is used to blow toward the air separation box, and the second airflow is used to blow toward the docking station.

[0013] In one embodiment, the first screening component includes: A drum, wherein the drum has sieve holes, and the sieve holes are used to screen impurities in the object to be screened when the drum rolls; A paddle is arranged on the inner surface of the drum and extends inwardly to form a paddle area. The objects to be screened are retained in the paddle area. When the drum rotates, the objects to be screened retained in the paddle area rotate synchronously with the drum.

[0014] In one embodiment, the first screening component further includes: A baffle plate, which is arranged between the screening surface and the dial plate, and the baffle plate abuts against the dial plate, and under the rotation of the drum, the objects to be screened in the dialing area are synchronously rotated to above the screening surface; The dropping area is located on one side of the baffle plate and directly above the screening surface. Under the rotation of the drum, the objects to be screened in the shifting area fall onto the screening surface through the dropping area.

[0015] According to a second aspect of the present disclosure, a tea production method is provided, comprising the following steps: Place the fresh tea leaves on a withering machine for withering treatment to reduce the water content of the tea leaves; Put the withered tea leaves into a continuous killing and shaping machine for shaping; Put the shaped tea leaves into an air separator for air separation; Put the tea leaves after air separation into a rewetting machine for primary rewetting treatment; Put the tea leaves after primary rewetting into a dryer for high-temperature rough drying; Adopt a rewetting process to conduct secondary rewetting treatment on the tea leaves dried by high-temperature rough drying; Put the tea leaves after secondary rewetting treatment into a dryer for secondary drying treatment; Pack the finished products.

[0016] Compared with the prior art, the tea air separator of the present disclosure has the following beneficial effects: Convey the tea leaves into the first screening component, and drive the first screening component to rotate by using the first driving component, so as to preliminarily separate the stones in the tea leaves from the first screening component, realizing the preliminary screening of the tea leaves; When the tea leaves are rotating in the first screening component, convey the tea leaves to the screening rack of the second screening component for secondary screening. At the same time, use the dispersing part and the peeling component to disperse and separate the agglomerated tea leaves on the screening rack, and use the air distribution part to convey the tea leaves falling on the screening rack into the air separation box. According to the different weights of the tea leaves, the tea leaves fall to different screening positions along different parabolas, realizing the screening of the tea leaves. At the same time, since the second screening component is located inside the first screening component, the floor area of the screening component is reduced, and the space utilization rate is improved.

[0017] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By referring to the accompanying drawings and reading the following detailed description, the above and other purposes, features and advantages of the exemplary embodiments of the present disclosure will become easily understood. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, wherein: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0019] Figure 1 Shows a schematic diagram of the overall structure of a tea air separator according to an embodiment of the present disclosure; Figure 2 Shows a sectional view of a tea air separator according to an embodiment of the present disclosure at a first angle; Figure 3Shows a second - angle cross - sectional view of a tea winnowing machine according to an embodiment of the present disclosure; Figure 4 Shows a first unfolded schematic diagram of a tea winnowing machine according to an embodiment of the present disclosure; Figure 5 Shows a schematic diagram of a first drive assembly of a tea winnowing machine according to an embodiment of the present disclosure; Figure 6 Shows a cross - sectional view of a drum of a tea winnowing machine according to an embodiment of the present disclosure; Figure 7 Shows a structural schematic diagram of a second screening assembly of a tea winnowing machine according to an embodiment of the present disclosure; Figure 8 Shows a cross - sectional view of a second screening assembly of a tea winnowing machine according to an embodiment of the present disclosure; Figure 9 Shows a top - view of a baffle of a tea winnowing machine according to an embodiment of the present disclosure; Figure 10 Shows a first - state schematic diagram of a screen - material rack of a tea winnowing machine according to an embodiment of the present disclosure; Figure 11 Shows a second - state schematic diagram of a screen - material rack of a tea winnowing machine according to an embodiment of the present disclosure; Figure 12 Shows a cross - sectional view of an air - distribution part of a tea winnowing machine according to an embodiment of the present disclosure; Figure 13 Shows a second unfolded schematic diagram of a tea winnowing machine according to an embodiment of the present disclosure; Figure 14 Shows a first - angle cross - sectional view of a dispersing part of a tea winnowing machine according to an embodiment of the present disclosure; Figure 15 Shows a second - angle cross - sectional view of a dispersing part of a tea winnowing machine according to an embodiment of the present disclosure; Figure 16 Shows a partial - structure schematic diagram of a tea winnowing machine according to an embodiment of the present disclosure; Figure 17 Shows an installation schematic diagram of a second dispersing support rod of a tea winnowing machine according to an embodiment of the present disclosure; Figure 18 Shows a flowchart of a tea production method according to an embodiment of the present disclosure.

[0020] Explanation of reference numerals in the figure: X, the first direction; OY, the second direction; OY’, the third direction; 1, air - winnowing box; 10, screening position; 101, first screening position; 102, second screening position; 103, third screening position; 104, feed inlet; 105, air outlet; 11. Intercepting component; 111. Installation opening; 112. Intercepting net; 1121. Latching groove; 113. Locking rod; 114. Locking head; 115. Spring; 12. Supporting platform; 121. Supporting seat; 2. First screening component; 201. Feeding area; 202. Scrap material return area; 21. Roller; 211. Sieve holes; 212. Paddle; 213. Retaining ring; 22. Baffle plate; 221. Dropping area; 3. First driving component; 31. Driving rod; 32. First motor; 33. Transmission mechanism; 331. Guide shoulder; 332. Transmission gear ring; 34. Driving gear; 35. Limiting roller; 4. Second screening component; 41. Air distribution part; 411. Air distribution box; 4111. Air inlet hole; 4112. First air outlet hole; 4113. Second air outlet hole; 4114. Shunt plate; 42. Dispersing part; 421. First dispersing structure; 4211. Dispersing pipe; 4212. First dispersing support rod; 422. First driving part; 4221. Second motor; 4222. First gear; 4223. Second gear; 423. Second dispersing structure; 4231. Push rod; 42311. Threaded hole; 4232. Second dispersing support rod; 42321. Sealing piece; 4233. Sliding groove; 424. Second driving part; 4241. First driving structure; 4242. Second driving structure; 43. Screening rack; 431. Screening surface; 432. Guide block; 44. Connecting table; 441. Support rod; 442. Rotating shaft; 443. Support plate; 4431. Guide chute; 444. Connecting diversion plate; 45. Oscillating mechanism; 451. Turntable; 452. Eccentric rod; 453. Oscillating rod; 454. Pin; 5. Blowing pipe; 61. Support leg; 62. Support frame.

[0021] 100. Hoist. Detailed implementation manners

[0022] To make the objectives, features, and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present disclosure.

[0023] As Figure 1 and Figure 2As shown, it includes an air separation box 1 for sorting different-quality tea leaves. For example Figure 4 As shown, an inlet 104 for tea leaves to enter is provided on one side of the air separation box 1. A number of screening positions 10 are provided on the air separation box 1 along the first direction X. Among them, the screening position 10 includes a first screening position 101, a second screening position 102, and a third screening position 103. It should be noted that the first direction X is consistent with the axial direction of the air separation box 1.

[0024] The first screening position 101 is used to discharge heavier tea leaves, the second screening position 102 is used to discharge lighter tea leaves, and the third screening position 103 is used to discharge the lightest tea leaves. Here, it should be noted that "heavier", "lighter", and "lightest" are comparisons among the three, representing the range values of the tea leaf weights.

[0025] In order to enable the tea leaves to fall from the inlet 104 into the first screening position 101, the second screening position 102, and the third screening position 103 respectively. In this embodiment, the tea leaves fall from the inlet 104 from top to bottom. It also includes an air separation airflow for blowing the tea leaves into the inner cavity of the air separation box 1. Here, it should be noted that the air separation airflow flows along the axial direction of the air separation box 1.

[0026] For example Figure 1 and Figure 2 As shown, an air outlet 105 is provided on the air separation box 1 on the same axis as the inlet 104. When the air separation airflow is blown into the inner cavity of the air separation box 1 from the inlet 104, the tea leaves fall into the corresponding screening positions 10 respectively, and the air separation airflow flows out of the air separation box 1 from the air outlet 105 position, solving the problem that the air separation airflow is stagnant in the inner cavity of the air separation box 1.

[0027] The air separation principle of the air separation machine for tea leaves mainly realizes air separation by using different falling speeds of tea leaves. Among them, during the air separation process, the falling trajectory of the tea leaves is parabolic. The opening size of the screening position 10 will affect the air separation effect of the tea leaves. The factors affecting the air separation effect of the tea leaves also include the size of the air separation airflow. Under normal circumstances, the speed of the air separation airflow is a certain value, and the sizes of several screening positions 10 are also the same. During the air separation process, the screening position 10 can receive the tea leaves that should fall into the adjacent two screening positions 10, and the landing position of the tea leaves deviates, resulting in poor air separation effect.

[0028] In order to be able to manually adjust the air separation effect, in this embodiment, for example Figure 2 and Figure 3 As shown, the air separation box 1 also includes an interception component 11 for intercepting tea leaves. Among them, two groups of interception components 11 are provided. One is installed between the first screening position 101 and the second screening position 102, and the other is installed between the second screening position 102 and the third screening position 103. The interception component 11 can be adjusted along the height direction of the air separation box 1.

[0029] It is worth noting here that there are not only two sets of interception components 11. When the number of screening positions 10 changes, the number of interception components 11 should also change correspondingly, so as to adjust the landing position of the tea leaves according to the interception components 11 and make the tea leaves fall into the corresponding screening positions 10.

[0030] Specifically, in this embodiment, as Figure 3 shown, the interception component 11 includes an installation opening 111 formed in the bottom wall of the air separation box 1. An intercepting net 112 that can be lifted is installed in the installation opening 111. Among them, the side wall of the intercepting net 112 is slidably connected to the side wall of the installation opening 111. It also includes a locking rod 113 that passes through the side wall of the air separation box 1 and extends into the inner cavity of the air separation box 1. A locking head 114 is installed at the end of the locking rod 113. A locking groove 1121 for inserting the locking head 114 is provided on the side wall of the intercepting net 112. Among them, the locking head 114 can be switched between the inside and the outside of the locking groove 1121.

[0031] It also includes a spring 115 sleeved on the locking rod 113. Among them, one end of the spring 115 is fixedly connected to the locking rod 113, and the other end of the spring 115 is fixedly connected to the outer wall of the air separation box 1. When the height of the intercepting net 112 needs to be adjusted, the locking head 114 can be pulled outwards through the locking rod 113. The locking head 114 moves out of the locking groove 1121, and the spring 115 is stretched, releasing the locking of the intercepting net 112. After the position of the intercepting net 112 is adjusted, the restriction on the locking rod 113 is released, and the spring 115 drives the locking head 114 to reset and insert into the locking groove 1121 to prevent the intercepting net 112 from falling down under its own gravity, realizing the fixation of the intercepting net 112.

[0032] Since there will be impurities such as stones in the tea leaves, in order to separate the granular impurities such as stones from the tea leaves and prevent the stones from entering the air separation box 1, in this embodiment, as Figure 1 and Figure 2 shown, a first screening component 2 for screening stones in the tea leaves and a hoist 100 for conveying the tea leaves to the first screening component 2 are arranged on the front side of the feed inlet 104 of the air separation box 1.

[0033] Specifically, as Figure 5As shown, the first screening component 2 includes a drum 21 for preliminarily screening tea leaves and a first driving component 3 for driving the drum 21 to rotate. The drum 21 is distributed with sieve holes 211 for granular impurities such as stones to fall. The tea leaves are conveyed into the interior of the drum 21 by a hoist 100. As the first driving component 3 drives the drum 21 to rotate, the friction force between the tea leaves and the inner wall of the drum 21 will drive the tea leaves to gradually rise, and then the tea leaves will roll inside the drum 21. At this time, the stones and granular impurities with a diameter smaller than the diameter of the sieve holes 211 in the tea leaves will fall downward through the sieve holes 211, realizing the preliminary separation of the tea leaves from the stones.

[0034] During the process of the hoist 100 conveying the tea leaves to the drum 21, a large amount of tea leaves will accumulate at the drum 21 directly below the tail end of the hoist 100, which will affect the screening effect of the stones or impurities in the tea leaves. Therefore, in this embodiment, as Figure 5 and Figure 6 shown, there is an included angle θ between the axis of the drum 21 and the horizontal plane. Among them, the side of the drum 21 close to the feed inlet 104 of the air separation box 1 is lower than the side of the drum 21 far from the air separation box 1, and the tea leaves dropped by the hoist 100 are located on the side of the drum 21 far from the air separation box 1.

[0035] The tea leaves of the hoist 100 fall into the drum 21. As the drum 21 rotates, the tea leaves will move towards the side of the drum 21 close to the air separation box 1, thereby spreading out the tea leaves and preventing the problem of tea leaf accumulation.

[0036] Although the drum 21 being inclined at an angle θ can gradually spread the tea leaves towards the side away from the hoist 100, however, since the tea leaves themselves will become entangled, stones and other impurities will be wrapped inside the tea leaves, thus affecting the separation effect of the stones from the tea leaves. Therefore, in this embodiment, as Figure 2 shown, a blowing pipe 5 is provided below the drum 21. Among them, the blowing pipe 5 is provided with air holes for conveying air flow to the drum 21. It should be noted here that the air holes are arranged vertically upward. When the drum 21 rotates, a large amount of air flow is input into the blowing pipe 5. At this time, the air flow passes through the air holes and the sieve holes 211 of the drum 21 and flows upward, thereby blowing up the tea leaves inside the drum 21. The blown-up tea leaves are suspended and start to disperse, separating the stones wrapped in the tea leaves and improving the separation effect of the tea leaves from the stones.

[0037] In order to install the drum 21, in this embodiment, as Figure 2 and Figure 4 shown, a supporting platform 12 is fixedly provided on the side wall of the feed inlet 104 of the air separation box 1. Among them, the drum 21 is installed on the supporting platform 12, and the blowing pipe 5 is fixedly installed on the top wall of the supporting platform 12 and is located below the drum 21.

[0038] In order to enable the rotation of the roller 21, in this embodiment, as Figure 5 shown, a support base 121 is fixedly installed on the supporting platform 12. Among them, there are two groups of support bases 121, which are respectively located on both sides of the roller 21. A driving rod 31 is rotatably installed on the support base 121. It also includes a first motor 32 fixed on the supporting platform 12. Among them, a transmission mechanism 33 is provided on the peripheral wall of the roller 21, and a driving gear 34 for driving the rotation of the roller 21 through the transmission mechanism 33 is fixedly provided on the driving rod 31.

[0039] Specifically, as Figure 5 shown, the transmission mechanism 33 includes two guiding shoulders 331. Among them, the two guiding shoulders 331 are fixedly installed on the peripheral wall of the roller 21 and are distributed along the axial direction of the roller 21. A transmission gear ring 332 meshing with the driving gear 34 is fixedly provided on the guiding shoulder 331.

[0040] Through the above settings, the first motor 32 is used to drive the rotation of the driving rod 31, and then the roller 21 is driven to rotate through the driving gear 34 and the transmission gear ring 332, realizing the tumbling of the tea leaves inside the roller 21.

[0041] In order to support the roller 21 and limit the axial sliding of the roller 21 along the driving rod 31, therefore, in this embodiment, a limiting roller 35 is also fixedly provided on the driving rod 31. Among them, the limiting roller 35 is fixedly connected with the driving gear 34. The peripheral wall of the limiting roller 35 abuts against the peripheral wall of the guiding shoulder 331, and the side wall of the limiting roller 35 abuts against the side wall of the guiding shoulder 331. Among them, the two transmission gear rings 332 are located between the two limiting rollers 35. The axial movement of the roller 21 along the driving rod 31 is limited by the two limiting rollers 35, improving the stability of the roller 21.

[0042] It should be noted here that the roller 21 is aligned with the feeding port 104. Among them, the tea leaves tumble inside the roller 21. At this time, even if the tea leaves can be transferred from the roller 21 to the inner cavity of the air separation box 1, due to the limited height of the tea leaves falling, it will affect the sorting of the tea leaves.

[0043] In order to improve the air separation effect of the tea leaves, in this embodiment, it is also necessary to perform secondary screening on the tea leaves inside the roller 21 and provide suitable conditions for the tea leaves to enter the air separation box 1.

[0044] Specifically, as Figure 2 and Figure 7As shown, it further includes a second screening component 4 extending into the inner cavity of the drum 21. Specifically, the second screening component 4 includes a connection table 44, a screening rack 43 rotatably mounted on the connection table 44, and a driving source for driving the screening rack 43 to swing through a swinging mechanism 45. The connection table 44 is also provided with an air distribution member 41 for providing a stable air flow for the fluttering of the tea leaves.

[0045] Through the above settings, the tea leaves inside are transported to the screening rack 43 on the connection table 44 by the drum 21, and then the driving source drives the screening rack 43 to swing through the swinging mechanism 45, so that the tea leaves shake on the screening rack 43. At this time, the stones or impurities in the tea leaves fall onto the connection table 44 through the screening rack 43. As the screening rack 43 swings, the tea leaves move towards the feed inlet 104 of the air separation box 1 and then fall down from a high place. At this time, the air flow provided by the air distribution member 41 is used to blow the falling tea leaves into the inner cavity of the air separation box 1, thus realizing the air separation of the tea leaves.

[0046] In order to enable the tea leaves to move with the drum 21 to the screening rack 43 for screening, in this embodiment, as Figure 5 and Figure 6 shown, a plurality of baffle plates 212 are fixedly provided on the inner wall of the drum 21. Among them, the plurality of baffle plates 212 are evenly distributed around the circumference of the drum 21. Among them, a retaining ring 213 fixedly connected to the end wall of the baffle plate 212 is also fixedly provided on the inner wall of the drum 21. The retaining ring 213 can be used to prevent the tea leaves from flowing out of the end of the drum 21.

[0047] As the drum 21 rotates, the tea leaves located between two adjacent baffle plates 212 will gradually move upward from the bottom of the drum 21. When the tea leaves move above the horizontal plane where the axis of the drum 21 is located, there is a risk that the tea leaves between two adjacent baffle plates 212 will fall downward. Therefore, in this embodiment, as Figure 7 and Figure 8 shown, a baffle 22 located in the feeding area 201 is also fixedly provided on the connection table 44. Specifically, referring to Figure 8 shown, taking the clockwise rotation of the drum 21 as an example, a rectangular coordinate system is established with the axis of the drum 21 as the origin. Among them, the feeding area 201 is located in the first quadrant, the second quadrant, and the third quadrant. Specifically, the baffle 22 is mainly located in the second quadrant.

[0048] It should be noted here that since the opening between two baffle plates 212 in the third quadrant faces the axis of the drum 21, and at this time the opening is inclined upward, the tea leaves in the third quadrant will not fall downward under the action of gravity. As can be seen from Figure 2 and Figure 9 , the screening rack 43 is in a horizontal state. In order to transfer the tea leaves to the screening rack 43, the baffle 22 is mainly located in the second quadrant.

[0049] Through the above arrangement, as the drum 21 rotates, the tea leaves between the two adjacent shifting plates 212 will move from the third quadrant to the second quadrant, and the tea leaves in the second quadrant will be blocked by the baffle plate 22 to prevent the tea leaves in the second quadrant from falling downward, thereby transferring the tea leaves to the top of the screening rack 43 for the screening rack 43 to screen the tea leaves.

[0050] In another embodiment, also referring to Figure 8 and Figure 9 As shown, with the axis O of the roller 21 as the origin, the direction where the Y axis is located is the second direction, the second direction is rotated 45° counterclockwise along the point O to reach the third direction OY', and the third direction OY' is rotated δ angle counterclockwise to OY", at this time, the area where OY' and OY" are located is the area where the baffle plate 22 is installed, wherein the second direction OY is rotated 135° counterclockwise to OY"', as shown in FIG. Figure 9 As shown, the baffle plate 22 has a drop area 221 between OY' and OY'', wherein the projection of the edge of the drop area 221 on the screening surface 431 is an inclined straight line. When the tea leaves between the two shifting plates 212 flow to the position of the drop area 221, the tea leaves gradually fall onto the screening frame 43, so that the tea leaves can cover the entire screening frame 43, preventing the tea leaves from piling up on the screening frame 43.

[0051] Specifically, the included angle between the projection of the paddle 212 on the horizontal plane where the axis of the drum 21 is located and the axis of the drum 21 is α, which can be referred to Figure 6 As shown, as the drum 21 rotates, the tea leaves that fall between the two shifting plates 212 will move toward one side of the air separation box 1 along the direction of the shifting plates 212 , so that the tea leaves are evenly distributed in the drum 21 .

[0052] like Figure 8 As shown, the area formed by OY and OY′ and the fourth quadrant serve as the residual material reflow area 202 . Tea leaves falling from the edge of the screening frame 43 fall downward from the residual material reflow area 202 , and continue to be transported to the screening frame 43 as the drum 21 rotates.

[0053] The screening frame 43 is in a mesh shape, which can drain the stones and granular impurities in the tea leaves downward to the docking platform 44. The driving source is used to realize high-frequency swing of the screening frame 43 through the swing mechanism 45, further improving the separation effect of stones or impurities and tea leaves.

[0054] In order to be able to transfer stones or impurities on the docking station 44 to the outside of the drum 21, as Figure 7 and Figure 10As shown, the transfer table 44 is inclined. Specifically, the included angle between the transfer surface of the transfer table 44 and the horizontal plane is β. Specifically, the side of the transfer table 44 close to the air separation box 1 is higher, and the side of the transfer table 44 far from the air separation box 1 is lower. Here, the lower and higher are relative to the transfer table 44 itself. The screening rack 43 drops the screened stones or granular impurities onto the transfer table 44, and they roll towards the outside of the drum 21 along the inclined surface of the transfer table 44.

[0055] To install the transfer table 44, in this embodiment, as Figure 2 、 Figure 7 and Figure 10 shown, two vertically downward extending support legs 61 are fixedly provided on the transfer table 44. Specifically, the support legs 61 are fixedly installed on the supporting platform 12. It further includes a support frame 62. One end of the support frame 62 extends into the inner cavity of the air separation box 1 through the feed port 104 and is then fixedly installed on the side wall of the inner cavity of the air separation box 1. The other end of the support frame 62 is fixedly installed on the transfer table 44.

[0056] To install the screening rack 43, in this embodiment, as Figure 7 and Figure 10 shown, a vertically upward extending support rod 441 is fixedly provided on the top wall of the transfer table 44. The screening rack 43 is rotatably connected to the support rod 441 through a rotating shaft 442. A vertically upward extending support plate 443 is fixedly provided on the side of the transfer table 44 close to the air separation box 1. A guide chute 4431 is provided on the side wall of the support plate 443. The axis of rotation of the guide chute 4431 is coaxial with the rotating shaft 442. As Figure 14 shown, a guide block 432 inserted into the guide chute 4431 is fixedly provided on the side wall of the screening rack 43. The guide block 432 is slidably connected to the guide chute 4431.

[0057] Among them, the driving source can make the screening rack 43 swing around the rotating shaft 442 through the swinging mechanism 45.

[0058] After the screening rack 43 swings, the tea leaves on the screening rack 43 fall downward from the end far from the rotating shaft 442. To enable the fallen tea leaves to enter the air separation box 1 through the air flow for screening, specifically, in this embodiment, as Figure 2 、 Figure 7 and Figure 10 shown, the air distribution part 41 includes an air distribution box 411. The air distribution box 411 is fixedly installed on the bottom wall of the transfer table 44. A first air outlet hole 4112 aligned with the feed port 104 of the air separation box 1 is provided on one side wall of the air distribution box 411. An air inlet hole 4111 connected to an external air source is also provided on the air distribution box 411.

[0059] With the above settings, after the external air source conveys gas to the air distribution box 411 through the air inlet hole 4111, the gas in the air distribution box 411 is blown outwards through the first air outlet hole 4112, and the gas flowing out from the first air outlet hole 4112 forms a stable air flow, thereby blowing the tea leaves dropped from the screening rack 43 into the air separation box 1.

[0060] Since the drum 21 is located outside the air separation box 1, in order to prevent the tea leaves from falling into the gap between the drum 21 and the screening rack 43, in this embodiment, as Figure 5 shown, a diversion ring 7 is provided at the end of the drum 21, which passes through the feed port 104 and enters the inner cavity of the air separation box 1, and the diversion ring 7 is used to connect the drum 21 and the air separation box 1.

[0061] After the screening rack 43 swings, the stones and granular impurities fall onto the connection table 44. In order to improve the effect of conveying the stones to the outside of the drum 21, in this embodiment, as Figure 12 shown, the air distribution box 411 is also provided with a second air outlet hole 4113 blowing towards the connection table 44, and a flow dividing plate 4114 for separating the gas entering from the air inlet hole 4111 into the first air outlet hole 4112 and the second air outlet hole 4113 is further provided inside the air distribution box 411. Among them, the air flow blown out from the second air outlet hole 4113 flows towards the side away from the air separation box 1.

[0062] It should be noted that during the air separation process of the tea leaves, under the action of the flow dividing plate 4114, a part of the gas entering the air distribution box 411 from the air inlet hole 4111 flows towards the second air outlet hole 4113. At this time, the gas blown out from the second air outlet hole 4113 blows the stones and granular impurities to flow out of the drum 21 along the table surface of the connection table 44.

[0063] Here it should be noted that the table surface of the connection table 44 is provided with connection guide plates 444. Among them, there are two connection guide plates 444 and they are symmetrically arranged. At this time, the cross-section of the connection guide plates 444 is V-shaped. The stones dropped from the screening rack 43 fall onto the connection guide plates 444. Among them, the air flow blown out from the second air outlet hole 4113 is between the two connection guide plates 444, thereby blowing the stones out of the drum 21 to prevent the stones from falling back into the drum 21 again during the process of the second air outlet hole 4113 blowing the stones to move.

[0064] In order to realize the swing of the screening rack 43, in this embodiment, as Figure 14 shown, the swing mechanism 45 includes a turntable 451 rotatably installed on the support plate 443, an eccentric rod 452 is fixedly installed at an eccentric position of the turntable 451. Among them, a swing rod 453 is rotatably connected to the eccentric rod 452, and the swing rod 453 is rotatably connected to the guide block 432 through a pin 454.

[0065] By rotating the turntable 451, the eccentric rod 452 can be rotated around the axis of the turntable 451. At this time, the guide block 432 will be driven to slide in the guide groove 4431 through the swing rod 453, so that the screening frame 43 can swing back and forth around the rotating shaft 442, which is convenient for secondary screening of tea leaves.

[0066] In order to realize the rotation of the turntable 451 , the turntable 451 may be driven to rotate by a driving source.

[0067] In this embodiment, if Figure 14 As shown, the driving source includes a first driving member 422, and the first driving member 422 includes a second motor 4221, a first gear 4222, a second gear 4223 and a scattering tube 4211, wherein the scattering tube 4211 is arranged along the width direction of the screening frame 43, and the scattering tube 4211 is rotatably installed on the support plate 443, wherein the turntable 451 is fixedly connected to the scattering tube 4211, and the second motor 4221 is fixedly installed on the docking platform 44, wherein the output shaft of the second motor 4221 is fixedly connected to the first gear 4222, and the second gear 4223 is fixedly installed on the scattering tube 4211, and the first gear 4222 and the second gear 4223 are meshed with each other.

[0068] Since the scattering tube 4211 is rotatably mounted on the support plate 443 and is located above the screening frame 43, when the screening frame 43 swings and is located close to the scattering tube 4211, the gap between the scattering tube 4211 and the screening frame 43 is small. In order to enable the tea leaves to smoothly pass through the gap between the scattering tube 4211 and the screening frame 43 and fall downward, in this embodiment, the scattering piece 42 includes a plurality of first scattering support rods 4212 fixed on the peripheral wall of the scattering tube 4211; when the tea leaves move to the position of the scattering tube 4211 on the screening frame 43, the scattering tube 4211 drives the first scattering support rod 4212 to rotate, thereby being able to push the tea leaves outward from the gap between the scattering tube 4211 and the screening frame 43, thereby causing the tea leaves to fall from the screening frame 43.

[0069] When the tea leaves fall from the falling area 221 of the baffle plate 22 onto the screening rack 43, the tea leaves tend to entangle with each other and form a clumping shape. When the tea leaves fall from the screening rack 43, the clumped tea leaves are heavy. Although the airflow blows the tea leaves to screen them, the clumped tea leaves will still fall to the first screening position 101, which will reduce the air selection effect of the tea leaves. Therefore, the clumped tea leaves on the screening rack 43 need to be separated.

[0070] Specifically, in this embodiment, if Figure 13 and Figure 14As shown in the figure, a second disintegration structure 423 that reciprocates axially along the disintegration pipe 4211 is also installed on the disintegration pipe 4211. By using the cooperation between the second disintegration structure 423 and the first disintegration support rod 4212, the agglomerated tea leaves are separated, thus solving the problem of the tea leaves being intertwined with each other.

[0071] Among them, the second disintegration structure 423 includes a push rod 4231, a second disintegration support rod 4232, a first driving structure 4241, and a second driving structure 4242. Specifically, the first driving structure 4241 is a compression spring, and the second driving structure is an inclined disk; among them, the inclined disk is fixedly installed on the output shaft of the second motor 4221, the push rod 4231 is installed in the inner cavity of the disintegration pipe 4211 and is slidably connected to the inner wall of the disintegration pipe 4211 along the axial direction of the disintegration pipe 4211, the compression spring is installed in the inner cavity of the disintegration pipe 4211, one end of the compression spring abuts against the push rod 4231, and the other end of the compression spring abuts against the inner wall of the disintegration pipe 4211. Among them, the end of the push rod 4231 away from the compression spring abuts against the end wall of the inclined disk, and the second disintegration support rod 4232 is fixedly installed on the push rod 4231 and extends outward through the disintegration pipe 4211.

[0072] Specifically, in this embodiment, as Figure 15 shown in the figure, a sliding groove 4233 is provided on the disintegration pipe 4211 along the axial direction of the disintegration pipe 4211. Among them, the second disintegration support rod 4232 passes through the sliding groove 4233 and extends radially outward along the disintegration pipe 4211.

[0073] With the above settings, when the second motor 4221 drives the disintegration pipe 4211 to rotate, as Figure 14 shown in the figure, the inclined disk rotates and switches between the solid line and the dotted line positions to push the push rod 4231. During this process, the push rod 4231 reciprocates axially along the disintegration pipe 4211, thereby driving the second disintegration support rod 4232 to reciprocate between approaching and moving away from the first disintegration support rod 4212.

[0074] It should be noted here that the rotation of the dispersing tube 4211 and the reciprocating movement of the push rod 4231 are both driven by the second motor 4221. When the guide block 432 is located at the top of the guide chute 4431, the screening rack 43 is close to the dispersing tube 4211 at this time, and the gap between the dispersing tube 4211 and the screening rack 43 is relatively small. At the same time, the second dispersing rod 4232 is close to the first dispersing rod 4212, and the two can be inserted into the agglomerated tea leaves at the same time. When the second motor 4221 continues to rotate, the screening rack 43 will move downward and gradually move away from the dispersing tube 4211. At this time, the second dispersing rod 4232 will move to the side away from the first dispersing rod 4212, so as to be able to separate the agglomerated tea leaves and disperse the tea leaves. During this process, the peeled and dispersed tea leaves will fall downward from the end of the screening rack 43 and are blown into the air separation box 1 by the air flow blown out by the air distribution box 411, thereby improving the effect of tea leaf air separation.

[0075] Since a sliding groove 4233 for the second dispersing rod 4232 to slide is provided on the peripheral wall of the dispersing tube 4211, there will be a gap between the second dispersing rod 4232 and the sliding groove 4233. At this time, tea leaves are likely to extend into the gap here, which will cause damage to the tea leaves. Therefore, in this embodiment, as Figure 17 shown, it further includes a sealing piece 42321. Among them, the sealing piece 42321 is fixedly installed on the outside of the dispersing tube 4211 to block the sliding groove 4233, preventing tea leaves from extending into the sliding groove 4233 and reducing the damage during the air separation of tea leaves.

[0076] To facilitate the installation of the second dispersing rod 4232, as Figure 15 and Figure 17 shown, a threaded hole 42311 is provided on the push rod 4231, and the second dispersing rod 4232 is threadedly connected to the threaded hole 42311.

[0077] It should be noted here that since the sliding groove 4233 is blocked by the sealing piece 42321, when the second dispersing rod 4232 moves towards the first dispersing rod 4212, the sealing piece 42321 is likely to abut against the first dispersing rod 4212, which will affect the movement of the second dispersing rod 4232. Therefore, in this embodiment, as Figure 15 shown, this figure is a cross-sectional schematic diagram of the dispersing tube 4211. At this time, an included angle γ is formed between the second dispersing rod 4232 and the first dispersing rod 4212, so that the sealing piece 42321 is displaced from the first dispersing rod 4212, enabling the first dispersing rod 4212 to abut against the second dispersing rod 4232 and facilitating the insertion of the first dispersing rod 4212 and the second dispersing rod 4232 into the agglomerated tea leaves.

[0078] A tea production method: AsFigure 18 As shown Put the freshly picked leaves on the withering machine located in the air-conditioned room to control the water content of the withered leaves; Use a continuous killing-green and shaping machine for shaping treatment; Use the above-mentioned winnowing machine to winnow the tea leaves and screen out tea leaves of different qualities; Place the rewetting machine in an independent air-conditioned room and use a multi-layer rewetting machine to rewet the winnowed tea leaves; Set the dryer to a high-temperature roughing fire to conduct the first drying treatment on the rewet tea leaves to promote the aroma of the tea; Adopt a secondary rewetting process to ensure the uniformity of the internal moisture of the tea leaves and guarantee the drying uniformity; Adopt a low-temperature slow-drying method to conduct the second drying on the tea leaves after secondary rewetting. While ensuring the water content of the tea leaves, further enhance the aroma of the tea, and then pack the finished products.

[0079] Among them, the withering machine can adopt a metering withering machine, which can control the water content of the tea leaves through data.

[0080] It should be understood that various forms of the processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved. This is not restricted herein.

[0081] In addition, 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 at least one of such features. In the description of this disclosure, "a plurality" means two or more unless otherwise specifically defined.

[0082] The above is only the specific implementation manner of this disclosure, but the protection scope of this disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed in this disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of this disclosure. Therefore, the protection scope of this disclosure should be subject to the protection scope of the claimed rights.

Claims

1. A tea air sorting machine, characterized in that: The wind separator is used to screen the objects to be screened, and the wind separator comprises: A wind separation box (1), wherein a plurality of screening positions (10) are sequentially arranged in the wind separation box (1) along a first direction (X); a first screening component (2), the first screening component (2) being located at one end of the air separation box (1) along the first direction (X), the first screening component (2) being connected to the air separation box (1), and the first screening component (2) and each screening position (10) having different spacings in the first direction (X); A first driving component (3), the first driving component (3) being rotatably connected to the first screening component (2) to achieve the screening of impurities in the object to be screened; A second screening component (4), the second screening component (4) is arranged inside the first screening component (2) and is used to screen the objects to be screened after being screened by the first screening component (2), wherein: The second screening assembly (4) further comprises a gas distribution component (41), An air distribution component (41), the air distribution component (41) is used to drive the object to be screened to move along a first direction (X), and the object to be screened forms a plurality of parabolas moving along the first direction (X) under the blowing of the air distribution component (41) according to the different densities of the object to be screened, the parabolas having different landing points in the first direction (X), and the landing points of the parabolas are arranged corresponding to the screening positions (10).

2. The tea leaf winnowing machine according to claim 1, characterized in that: The second screening component (4) comprises, A breaking piece (42) and a screening frame (43), wherein the breaking piece (42) is located on one side of the screening frame (43), and the screening frame (43) is used to screen impurities in the object to be screened. The screening frame (43) has a screening surface (431) on one side close to the breaking piece (42), and the object to be screened is carried on the screening surface (431). The breaking piece (42) moves relative to the screening surface (431) to break up the object to be screened.

3. The tea leaf winnowing machine according to claim 2, characterized in that: The disassembled parts (42) include: A first scattering structure (421) and a first driving member (422), wherein the first driving member (422) is connected to the first scattering structure (421) to drive the first scattering structure (421) to rotate in a circumferential direction relative to the screening surface (431) to scatter the objects to be screened; A second scattering structure (423), a second driving member (424), wherein the second driving member (424) is connected to the second scattering structure (423) to drive the second scattering structure (423) to form a circumferential rotation and / or a lateral movement relative to the screening surface (431) to scatter the objects to be screened.

4. The tea leaf winnowing machine according to claim 3, characterized in that: The first breaking up structure (421) comprises: A scattering tube (4211), a first scattering support rod (4212), wherein the first scattering support rod (4212) is connected to the scattering tube (4211), and the first scattering support rod (4212) extends along the radial direction of the scattering tube (4211); wherein, The first driving member (422) is connected to the scattering tube (4211) to drive the scattering tube (4211) to rotate; The second breaking up structure (423) comprises: A push rod (4231) and a second scattering support rod (4232), wherein a driving cavity is transversely arranged in the scattering tube (4211), the push rod (4231) is located in the driving cavity, a sliding groove (4233) is transversely arranged on the scattering tube (4211), the sliding groove (4233) is connected with the driving cavity, and the second scattering support rod (4232) passes through the sliding groove (4233) and is connected with the push rod (4231); The second driving member (424) comprises: A first driving structure (4241) and a second driving structure (4242), wherein the first driving structure (4241) and the second driving structure (4242) are located at both ends of the push rod along the lateral direction, and the first driving structure (4241) and the second driving structure (4242) are used to drive the push rod (4231) to move lateraly in the driving cavity.

5. The tea leaf winnowing machine according to claim 2, characterized in that: The second screening component (4) further comprises: A docking platform (44), the docking platform (44) is located on one side of the screening frame (43), and the screening frame (43) is located between the docking platform (44) and the breaking piece (42), the docking platform (44) is used to carry impurities screened by the screening frame (43), and a first angle is formed between the docking platform (44) and the horizontal plane.

6. The tea leaf winnowing machine according to claim 5, characterized in that: The gas distribution component (41) comprises: Gas source; An air distribution box (411), wherein an air distribution cavity is arranged in the air distribution box (411), and an air inlet (4111) and a first air outlet (4112) are respectively arranged at two ends of the air distribution box along the first direction, the air inlet (4111) and the first air outlet (4112) are connected to the air distribution cavity, and a first gas flow channel is formed in the air distribution cavity from the air inlet (4111) to the first air outlet (4112), and the gas source forms an air flow, and the air flow is blown toward the air separation box (1) through the first gas flow channel.

7. The tea leaf winnowing machine according to claim 6, characterized in that: The gas distribution box (411) further includes: A second gas outlet hole (4113), the second gas outlet hole (4113) is connected to the gas distribution cavity, a second gas flow channel is formed in the gas distribution cavity from the gas inlet hole (4111) to the second gas outlet hole (4113), and the gas flow is blown toward the docking platform (44) through the second gas flow channel; A splitter plate (4114), wherein the splitter plate (4114) is located between the first gas flow channel and the second gas flow channel to split the airflow into a first airflow and a second airflow, wherein the first airflow is used to blow toward the air separation box (1), and the second airflow is used to blow toward the docking station (44).

8. The tea leaf winnowing machine according to claim 2, characterized in that: The first screening component (2) comprises, A drum (21), wherein the drum (21) has sieve holes (211), and when the drum (21) rolls, the sieve holes (211) are used to screen impurities in the object to be screened; A paddle (212) is arranged on the inner surface of the drum (21), and the paddle (212) extends inwardly to form a paddle area, and the objects to be screened are retained in the paddle area. When the drum (21) rotates, the objects to be screened retained in the paddle area rotate synchronously with the drum (21).

9. The tea leaf winnowing machine according to claim 8, characterized in that: The first screening component (2) further comprises: a baffle plate (22), the baffle plate (22) being arranged between the screening surface (431) and the shifting plate (212), and the baffle plate (22) and the shifting plate (212) being in contact with each other, so that when the drum (21) rotates, the objects to be screened in the shifting area are synchronously rotated to above the screening surface (431); A drop area (221), the drop area (221) is located on one side of the baffle plate (22) and directly above the screening surface (431), and under the rotation of the drum (21), the to-be-screened objects located in the shifting area fall onto the screening surface (431) through the drop area (221).

10. A method for producing tea, characterized in that: The tea leaf air sorting machine according to any one of claims 1 to 9, wherein the tea leaf production method further comprises: Place the fresh leaves on a spreading machine to spread them out to reduce the water content of the tea leaves; Put the tea leaves after spreading into a continuous tea-withering and tea-stripping machine for tea-stripping; Put the sorted tea leaves into the winnowing machine for winnowing; The tea leaves after winnowing are placed in the moisture conditioning machine for the first moisture conditioning treatment; Put the first moistened tea leaves into the drying chamber and dry them with high temperature fire. The tea leaves dried by high temperature roughening fire are subjected to secondary moisture conditioning by moisture conditioning process; The tea leaves which have been subjected to the second moisture restoration are placed in a drying machine for a second drying process; Finished product packaging.

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