Reciprocating jolt tea fresh leaf winnower

Abstract

This invention relates to the field of tea leaf winnowing and discloses a reciprocating turbulent winnowing machine for fresh tea leaves. The machine includes a housing with a vertical chamber and a horizontal chamber within it. An inlet is located on the side wall of the vertical chamber, and a centrifugal fan is located at the bottom of the vertical chamber. Both the vertical and horizontal chambers have outlet groups at their bottoms. A cylindrical cavity is formed horizontally within the vertical chamber, and a set of air-distributing plates is rotatably mounted within this cavity. A movable drive structure is connected to the end of the air-distributing plates. The air generated by the centrifugal fan blows some of the fresh tea leaves into the horizontal chamber, where they are discharged through the outlet groups. The remaining fresh tea leaves fall onto the air-distributing plates and are dispersed by the reciprocating rotation of the plates. In this invention, the fresh tea leaves are repeatedly turbulent as the air-distributing plates rotate, which, combined with the airflow, disperses the tea leaf pile, preventing lighter leaves from mixing with heavier leaves and being discharged, thus ensuring the winnowing effect.

Description

Technical Field

[0001] This invention relates to the field of tea leaf winnowing, specifically to a reciprocating turbulent winnowing machine for fresh tea leaves. Background Technology

[0002] During the tea production process, fresh tea leaves need to be screened and graded. Generally, they are divided according to the degree of wholeness or breakage of the same type of tea leaves. Whole leaves have the highest weight, while tea fragments have the lowest weight. In this process, a tea air separator is usually used to sort the tea leaves, using air force to separate tea leaves of different weights.

[0003] A typical tea air separator consists of an air separator box, a feeding structure, a blower, and a discharge port. Tea leaves fall into the air separator box through the feeding structure. During the falling process, the blower uses air force to separate the tea leaves. Whole and heavier tea leaves fall to the bottom, while tea fragments are blown to the end of the air separator box before falling. The remaining tea leaves fall to different positions in the middle according to their weight. At the same time, the falling tea leaves are collected through the discharge port at the bottom of the air separator box, thus completing the tea air separation process.

[0004] Existing tea air separators typically feed continuously, causing heavier tea leaves to mix with lighter ones and form piles. A small amount of lighter tea leaves are discharged along with these piles before they can be blown away, resulting in poor tea air separation performance. Summary of the Invention

[0005] To address this issue, the present invention provides a reciprocating turbulent tea leaf air separator, which effectively solves the technical problem in the prior art where heavier tea leaves tend to mix with lighter tea leaves to form a tea pile, and a small amount of lighter tea leaves are discharged with the tea pile before being blown away, resulting in poor tea leaf air separation effect.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: a reciprocating turbulent tea leaf air separator, including an air separator housing, in which a vertical chamber and a horizontal chamber are formed in connection, an inlet is provided on the side wall of the vertical chamber, a centrifugal fan is provided at the bottom of the vertical chamber, and an outlet group is provided at the bottom of both the vertical chamber and the horizontal chamber.

[0007] A cylindrical cavity is formed horizontally within the vertical cabin. The cylindrical cavity is open at both the top and bottom. An air distribution plate assembly is rotatably installed inside the cylindrical cavity. A movable drive structure is connected to the end of the air distribution plate assembly, and the movable drive structure drives the air distribution plate assembly to rotate back and forth.

[0008] The angle of the back-and-forth rotation of the air distribution plate group gradually increases, and when the air distribution plate group rotates to face the discharge port group, one end of the air distribution plate group disengages from the cylindrical cavity to form a through hole between the air distribution plate group and the cylindrical cavity.

[0009] The air generated by the centrifugal fan flows upward along the vertical chamber and blows some of the fresh tea leaves that have been fed into the cylindrical cavity from the inlet into the horizontal chamber and then out from the outlet group. The remaining fresh tea leaves fall onto the wind-dispersing plate group and are bounced and dispersed as the wind-dispersing plate group rotates back and forth. Some of the fresh tea leaves on the wind-dispersing plate group are blown upward by the wind force, while the other part slides down the wind-dispersing plate group to the outlet group when the opening is opened.

[0010] Furthermore, the inner walls of the opposite sides of the vertical compartment are respectively provided with a first slot and a second slot, and the inner walls of the first slot and the second slot are both formed with arc-shaped slot walls, and the cylindrical cavity is formed between the first slot and the second slot.

[0011] The air distribution plate assembly is in sliding contact with the inner walls of the first and second slot seats;

[0012] The first groove seat has a first inclined sidewall at the top, facing the inlet, and the second groove seat has a second inclined sidewall at the bottom, facing the outlet group.

[0013] Furthermore, the air distribution plate assembly includes a first plate body and a second plate body, the second plate body is disposed at the bottom of the first plate body, the edge of the first plate body is in sliding contact with the groove wall of the first groove seat, and the second plate body is in sliding contact with the groove wall of the second groove seat;

[0014] Wherein, the edge of the first plate is far from the groove wall of the second groove seat, the length of the second plate is half the length of the first plate, and a plate protrusion is formed on it, the plate protrusion is disposed between the first plate and the second groove seat.

[0015] Furthermore, a magnetic sheet is embedded in the second plate to create a magnetic attraction force on the first plate;

[0016] The first plate is movably mounted on the inner wall of the vertical compartment via a shaft, and the second plate is connected to the movable drive structure on its side. The first plate and the second plate are on the same straight line around the central axis of rotation.

[0017] Furthermore, a limit pin is provided at the opening of the first slot seat;

[0018] When the first plate rotates to the limiting pin, it can no longer rotate. The second plate continues to rotate under the drive of the movable drive structure and disengages from the second slot, so as to form the through hole between the second slot and the second plate.

[0019] Furthermore, the active drive structure includes a connecting shaft connected to the side of the second plate and a sleeve connected to the end of the connecting shaft;

[0020] The connecting shaft passes through the side wall of the vertical compartment, and an installation compartment is provided outside the air separator housing. A limit post is provided inside the installation compartment, and the sleeve is rotatably mounted on the limit post.

[0021] The installation compartment is equipped with a lifting frame, the top of which is connected to a hydraulic cylinder. The lifting frame is located outside the sleeve, and a lever is connected to the outside of the sleeve. A first actuating block and a second actuating block are respectively connected to the lifting frame at the upper and lower positions opposite to the lever.

[0022] The hydraulic cylinder drives the lifting frame to rise and fall. After the first actuating block descends to abut against the lever, the lever drives the sleeve to rotate clockwise. After the second actuating block rises to abut against the lever, the lever drives the sleeve to rotate counterclockwise.

[0023] Furthermore, a friction pad layer is provided between the sleeve and the limiting post.

[0024] Furthermore, the first and second slot seats are densely covered with vertical air passage holes.

[0025] Furthermore, the vertical compartment forms an arc-shaped airflow guiding wall on the inner wall of the top corner of the air distribution plate assembly;

[0026] An air release plate is installed on the wall of the horizontal chamber near the discharge port assembly.

[0027] Furthermore, the discharge port assembly includes a first discharge port disposed at the bottom of the vertical compartment, a second discharge port disposed at the bottom of the horizontal compartment, and a third discharge port;

[0028] A first partition is provided between the vertical compartment and the horizontal compartment, and the first partition does not completely close the passage between the vertical compartment and the horizontal compartment;

[0029] A second partition is provided in the horizontal compartment, and the second partition is located between the second discharge port and the third discharge port.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] In this invention, the fresh tea leaves falling onto the wind distribution plate group are repeatedly shaken as the wind distribution plate group rotates, which, together with the wind force, disperses the pile of fresh tea leaves, preventing a small amount of lighter tea leaves from being mixed with heavier tea leaves and being discharged, thus ensuring the wind selection effect of the tea leaves.

[0032] Furthermore, by rotating the wind-equalizing plate group back and forth, the fresh tea leaves continuously change their state as they rotate and bounce, adjusting the entanglement between the fresh tea leaves, increasing the probability of lighter tea leaves being selected by wind, and extending the wind selection time for the entire batch of fresh tea leaves. After several rounds of wind selection by back and forth bouncing, the lighter tea leaves are basically completely blown up, thus optimizing the wind selection effect of the tea leaves. Attached Figure Description

[0033] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a reciprocating turbulent tea leaf air separator provided in an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of a reciprocating turbulent tea leaf air separator from another perspective, provided in an embodiment of the present invention.

[0036] Figure 3 This is a schematic diagram of the internal structure of the vertical compartment and the horizontal configuration in an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the internal structure of the vertical compartment in an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the structure in an embodiment of the present invention, in which the first plate rotates to the limiting pin and the second plate continues to rotate clockwise to form an opening.

[0039] Figure 6 This is a schematic diagram of the wind distribution plate assembly in an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the internal structure of the installation compartment in an embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the activity driving structure in an embodiment of the present invention;

[0042] Figure 9 This is a three-dimensional sectional view of the active driving structure in an embodiment of the present invention.

[0043] The labels in the diagram represent the following:

[0044] 1. Air separator housing; 2. Vertical chamber; 3. Horizontal chamber; 4. Inlet; 5. Outlet assembly; 6. Cylindrical cavity; 7. Air distribution plate assembly; 8. Movable drive structure; 9. Through-hole; 10. First slot seat; 11. Second slot seat; 12. First inclined sidewall; 13. Second inclined sidewall; 14. Limiting pin; 15. Air passage hole; 16. Arc-shaped guide wall; 17. Air release plate; 18. First partition; 19. Second partition;

[0045] 51. First discharge port; 52. Second discharge port; 53. Third discharge port;

[0046] 71. First plate; 72. Second plate; 73. Plate protrusion; 74. Magnetic sheet;

[0047] 81. Connecting shaft; 82. Sleeve; 83. Mounting compartment; 84. Limiting post; 85. Lifting frame; 86. Hydraulic cylinder; 87. Lever; 88. First actuating block; 89. Second actuating block. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a reciprocating turbulent tea leaf air separator, including an air separator housing 1, in which a vertical chamber 2 and a horizontal chamber 3 are formed in connection. A feed inlet 4 is provided on the side wall of the vertical chamber 2, a centrifugal fan is provided at the bottom of the vertical chamber 2, and a discharge port group 5 is provided at the bottom of both the vertical chamber 2 and the horizontal chamber 3.

[0050] A cylindrical cavity 6 is formed horizontally inside the vertical compartment 2. The cylindrical cavity 6 is open at both the top and bottom. A wind distribution plate assembly 7 is rotatably installed inside the cylindrical cavity 6. A movable drive structure 8 is connected to the end of the wind distribution plate assembly 7. The movable drive structure 8 drives the wind distribution plate assembly 7 to rotate back and forth.

[0051] The air distribution plate assembly 7 is densely covered with small holes, which evenly distribute the air volume in the vertical chamber 2, achieving uniform air volume control. The inner wall of the top corner of the vertical chamber 2, directly opposite the air distribution plate, forms an arc-shaped guide wall 16, which guides the vertical air to be converted into horizontal air.

[0052] The air flowing inside the horizontal chamber 3 needs to be discharged outside the horizontal chamber 3. Specifically, an air release plate 17 is installed on the wall of the horizontal chamber 3 near the discharge port group 5. The air flowing inside the horizontal chamber 3 can be discharged directly from the air release plate 17. The air release plate 17 is also densely covered with small holes.

[0053] In this invention, both the vertical chamber 2 and the horizontal chamber 3 are provided with a discharge port group 5 at the bottom. The wind generated by the fan flows upward along the vertical chamber 2 and blows some of the lighter fresh tea leaves input from the leaf inlet into the horizontal chamber 3 and then discharges them from the discharge port group 5. The remaining heavier fresh tea leaves slide down the wind distribution plate to the discharge port group 5 and are discharged.

[0054] Specifically, such as Figure 2 As shown, the discharge port group 5 includes a first discharge port 51 located at the bottom of the vertical chamber 2, a second discharge port 52 located at the bottom of the horizontal chamber 3, and a third discharge port 53. A first partition 18 is provided between the vertical chamber 2 and the horizontal chamber 3. The first partition 18 does not completely close the passage between the vertical chamber 2 and the horizontal chamber 3.

[0055] A second partition 19 is provided in the horizontal compartment 3. The second partition 19 is located between the second discharge port 52 and the third discharge port 53. The first partition 18 can separate the first discharge port 51 and the second discharge port 52, and the second partition 19 can separate the second discharge port 52 and the third discharge port 53.

[0056] After the fresh tea leaves enter the vertical chamber 2, they fall downwards under the influence of gravity. The vertical upward wind generated by the fan flows upwards along the vertical chamber 2. Some of the heavier fresh tea leaves are not blown up, while some of the lighter fresh tea leaves are blown up and carried upwards to the horizontal chamber 3. After being blown horizontally by the wind, the fresh tea leaves of uniform weight are discharged from the second discharge port 52, and the lightest fresh tea leaves are discharged from the third discharge port 53. The wind is discharged from the air release plate 17.

[0057] To balance the pressure and prevent a large amount of fresh tea leaves entering the horizontal chamber 3 from entering the third discharge port 53, an air release plate 17 can also be installed on the top of the horizontal chamber 3.

[0058] In this invention, the air distribution plate assembly 7 can move back and forth, and the angle of the back and forth rotation of the air distribution plate assembly 7 gradually increases. When the air distribution plate assembly 7 rotates to face the discharge port assembly 5, one end of the air distribution plate assembly 7 disengages from the cylindrical cavity 6 to form a through hole 9 between the air distribution plate assembly 7 and the cylindrical cavity 6.

[0059] The air generated by the centrifugal fan flows upward along the vertical chamber 2 and blows some of the fresh tea leaves that have been fed into the cylindrical cavity 6 from the feed port 4 into the horizontal chamber 3 and then out of the discharge port group 5. The remaining fresh tea leaves fall onto the air distribution plate group 7 and are bounced and dispersed as the air distribution plate group 7 rotates back and forth. During the back and forth bounce, some of the fresh tea leaves on the air distribution plate group 7 are blown upward by the wind, and the other part slides down along the air distribution plate group 7 to the discharge port group 5 when the opening 9 is opened.

[0060] In this invention, the fresh tea leaves falling onto the wind distribution plate group 7 are repeatedly shaken as the wind distribution plate group 7 rotates, and the wind force is used to disperse the pile of fresh tea leaves, avoiding the situation where a small amount of lighter tea leaves are mixed with heavier tea leaves and discharged, thus ensuring the wind selection effect of tea leaves.

[0061] In addition, by rotating the wind-equalizing plate group 7 back and forth, the fresh tea leaves constantly change their state as they rotate and bounce, adjusting the entanglement between the fresh tea leaves, increasing the probability of wind selection of lighter tea leaves, and extending the wind selection time of the entire batch of fresh tea leaves. After several rounds of wind selection with back and forth bounce, the lighter tea leaves are basically completely blown up, thus optimizing the wind selection effect of tea leaves.

[0062] In this invention, the cylindrical cavity 6 mainly provides a space for the air distribution plate assembly 7 to move, confining the air distribution plate assembly 7 within a specific range to allow for rotational movement. Specifically, for example... Figure 4 and Figure 5 As shown, the inner walls of the opposite sides of the vertical compartment 2 are respectively provided with a first slot seat 10 and a second slot seat 11. The inner walls of the first slot seat 10 and the second slot seat 11 are both formed with arc-shaped slot walls. A cylindrical cavity 6 is formed between the first slot seat 10 and the second slot seat 11. The wind distribution plate group 7 is in sliding contact with the inner walls of the first slot seat 10 and the second slot seat 11.

[0063] The first trough seat 10 has a first inclined sidewall 12 at the top, which is directly opposite the inlet 4. The second trough seat 11 has a second inclined sidewall 13 at the bottom, which is directly opposite the outlet group 5. After the fresh tea leaves are put in from the inlet 4, they pass through the first inclined sidewall 12 and enter the uniform air plate group 7 in the cylindrical cavity 6. The design of the second inclined sidewall 13 is to prevent it from obstructing the discharge of the fresh tea leaves.

[0064] To avoid affecting the vertical flow of wind, vertical air passage holes 15 are densely distributed on the first slot seat 10 and the second slot seat 11, allowing wind to flow upward through the air passage holes 15.

[0065] The air distribution plate assembly 7 can rotate back and forth under the drive of the movable drive structure 8, and when the rotation angle reaches a certain value, a through-hole 9 can be formed at the end of the air distribution plate assembly 7. Specifically, as shown in the figure... Figure 6As shown, the air distribution plate assembly 7 includes a first plate 71 and a second plate 72. The second plate 72 is disposed at the bottom of the first plate 71. The edge of the first plate 71 is in sliding contact with the groove wall of the first groove seat 10, and the second plate 72 is in sliding contact with the groove wall of the second groove seat 11.

[0066] The edge of the first plate 71 is far from the groove wall of the second groove seat 11. The length of the second plate 72 is half the length of the first plate 71, and a plate protrusion 73 is formed on it. The plate protrusion 73 is disposed between the first plate 71 and the second groove seat 11.

[0067] The wind distribution plate assembly 7 is configured as a first plate 71 and a second plate 72, which allows the second plate 72 to detach from the first plate 71 when the first plate 71 and the second plate 72 are rotated to a specific angle, and the plate protrusion 73 moves away from the first plate 71. At this time, the first plate 71 and the second plate 72 are disassembled, and the fresh tea leaves can slide off from the end of the first plate 71.

[0068] Setting the length of the second plate 72 to be half that of the first plate 71 is also to avoid the first plate 71 blocking half of the second plate 72 when the second plate 72 rotates away from the first plate 71. By setting the length of the second plate 72 to half, the second plate 72 can rotate freely in a clockwise direction away from the first plate 71 without being blocked.

[0069] Furthermore, to prevent the first plate 71 from rotating excessively and detaching from the first groove seat 10, causing some fresh tea leaves to enter the bottom of the first plate 71 and the second plate 72, the present invention is designed as follows: Figure 4 As shown, a limiting pin 14 is provided at the opening of the first slot seat 10. The limiting pin 14 will not block the feeding of fresh tea leaves and can limit the movement of the first plate 71.

[0070] Among them, such as Figure 4 , 5 As shown, when the first plate 71 rotates clockwise to the limit pin 14, it can no longer rotate. The second plate 72 continues to rotate under the drive of the movable drive structure 8 and disengages from the second slot seat 11 to form a through hole 9 between the second slot seat 11 and the second plate 72. At this time, the fresh tea leaves can slide down the first plate 71 onto the second plate 72 and then enter the first discharge port 51 through the through hole 9.

[0071] To prevent fresh tea leaves from falling into the bottom of the vertical chamber 2 between the inlet 9 and the first outlet 51 during the sliding process, a specific guide plate can be installed in the first outlet 51 to connect the inlet 9 and the first outlet 51.

[0072] In this invention, the second plate 72 serves as the rotating body and can drive the first plate 71 to rotate. To ensure the driving force of the back-and-forth rotation, the invention is designed as follows: a magnetic sheet 74 is embedded in the second plate 72 to form a magnetic attraction force on the first plate 71. Under the action of the magnetic attraction force, the first plate 71 can be driven to rotate together during the clockwise or counterclockwise rotation of the second plate 72.

[0073] The first plate 71 is movably mounted on the inner wall of the vertical compartment 2 via a shaft, and the second plate 72 is connected to the movable drive structure 8 on its side. The first plate 71 and the second plate 72 are on the same straight line around the central axis of rotation. If the central axis of rotation of the first plate 71 and the second plate 72 are not on the same straight line, then when the second plate 72 rotates clockwise away from the first plate 71, the problem of possible interference at the central axis of rotation needs to be considered. This design can further avoid the first plate 71 from blocking the relative rotational movement of the second plate 72.

[0074] The present invention enables the second plate 72 to rotate via the active drive structure 8, specifically, as shown in the figure. Figure 7 , Figure 8 and Figure 9 As shown, the active drive structure 8 includes a connecting shaft 81 connected to the side of the second plate 72 and a sleeve 82 connected to the end of the connecting shaft 81.

[0075] The connecting shaft 81 passes through the side wall of the vertical compartment 2. An installation compartment 83 is provided outside the air separator housing 1. A limit post 84 is provided inside the installation compartment 83. The sleeve 82 is rotatably installed on the limit post 84.

[0076] A lifting frame 85 is installed inside the installation compartment 83. A hydraulic cylinder 86 is connected to the top of the lifting frame 85. The lifting frame 85 is located outside the sleeve 82. A lever 87 is connected to the outside of the sleeve 82. A first actuating block 88 and a second actuating block 89 are respectively connected to the upper and lower positions of the lifting frame 85 opposite to the lever 87.

[0077] The hydraulic cylinder 86 drives the lifting frame 85 to rise and fall. After the first toggle block 88 descends to abut against the lever 87, the lever 87 drives the sleeve 82 to rotate clockwise. After the second toggle block 89 rises to abut against the lever 87, the lever 87 drives the sleeve 82 to rotate counterclockwise.

[0078] In the above embodiments, the hydraulic cylinder 86 drives the lifting frame 85 to rise and fall. After the first actuating block 88 descends to abut against the lever 87, the first actuating block 88 continues to move downward, driving the sleeve 82 to rotate clockwise through the lever 87. After the second actuating block 89 rises to abut against the lever 87, the second actuating block 89 continues to move upward, driving the sleeve 82 to rotate counterclockwise through the lever 87. The rotation of the sleeve 82 can drive the second plate 72 to rotate through the connecting shaft 81. The height of the lifting frame 85 can determine the rotation angle of the sleeve 82. Adjusting the height of the lifting frame 85 each time can continuously increase the rotation angle of the second plate 72 during the rotation process. In practical applications, the height of the lifting frame 85 can be adjusted by adjusting the single fluid inlet volume inside the hydraulic cylinder 86.

[0079] In this invention, the first actuating block 88 and the second actuating block 89 are usually far from the lever 87. That is, after the first actuating block 88 continues to move downward and drives the sleeve 82 to rotate clockwise through the lever 87, it needs to drive the second actuating block 89 to rise a certain distance before driving the sleeve 82 to rotate counterclockwise. This makes the rotation process of the second plate 72 not continuous, but intermittent. When the first plate 71 and the second plate 72 rotate at a relatively fast speed, the speed of the fresh tea leaves cannot keep up with the movement speed of the first plate 71 and the second plate 72. After the first plate 71 and the second plate 72 complete a single clockwise or counterclockwise movement, the fresh tea leaves are still in the air and gradually falling. The second plate 72 and the first plate 71 stop after rotating a certain angle in each direction, so that the fresh tea leaves fall on the first plate 71 and then rotate in the opposite direction, instead of the second plate 72 immediately rotating in the opposite direction and hitting the fresh tea leaves that may still be in the air, thus reducing damage to the fresh tea leaves.

[0080] In the above process, the relatively fast operating speed of the first plate 71 and the second plate 72 not only allows some of the tea leaves to be suspended in the air, accelerating the dispersion of fresh tea leaves, but also speeds up the overall air separation speed and improves efficiency.

[0081] If the rotation speed of the first plate 71 and the second plate 72 is low, it is not necessary to move the first actuating block 88 and the second actuating block 89 away from the lever 87. Accordingly, the first plate 71 and the second plate 72 rotate counterclockwise immediately after rotating clockwise. In this case, the fresh tea leaves usually slide back and forth on the surface of the first plate 71. As the first plate 71 gradually rotates and tilts, the heavier fresh tea leaves are more likely to slide on the first plate 71, while the lighter fresh tea leaves will only slide after the first plate 71 rotates at a certain angle. The same principle applies between piles of heavier or lighter tea leaves. As the tilt angle gradually changes, the dispersion between fresh tea leaves or between piles of fresh tea leaves is accelerated, making it easier for the lighter fresh tea leaves inside the pile to be blown up.

[0082] In this invention, the sleeve 82 will not move without external force. Therefore, a friction pad is provided between the sleeve 82 and the limiting post 84. The limiting post 84 is fixed. The design of the friction pad creates a large frictional force between the sleeve 82 and the limiting post 84. The sleeve 82 can only rotate when it is subjected to a certain external force. It will not rotate when there is no external force or a very small external force.

[0083] In summary, the main implementation process of this invention is as follows:

[0084] After the fresh tea leaves enter the vertical chamber 2, they fall downwards under the action of gravity and enter the cylindrical cavity 6. The vertical upward wind generated by the fan flows upward along the vertical chamber 2. Some of the heavier fresh tea leaves are not blown up, while some of the lighter fresh tea leaves are blown up and carried upward to the horizontal chamber 3. After being blown horizontally by the wind, the fresh tea leaves of uniform weight are discharged from the second discharge port 52, and the lightest fresh tea leaves are discharged from the third discharge port 53. The wind is discharged from the air release plate 17.

[0085] Some of the heavier tea leaves and a small amount of lighter tea leaves mixed in fall onto the wind equalization plate group 7 and are shaken and dispersed as the wind equalization plate group 7 rotates back and forth. During the back and forth shaking, some of the lighter tea leaves on the wind equalization plate group 7 are blown upward by the wind.

[0086] When the first plate 71 and the second plate 72 rotate back and forth to a certain angle, the first plate 71 can no longer rotate when it rotates clockwise to the limit pin 14. The second plate 72 continues to rotate under the drive of the movable drive structure 8 and disengages from the second groove seat 11, forming a through hole 9 between the second groove seat 11 and the second plate 72. At this time, another part of the heavier fresh tea leaves can slide down the first plate 71 onto the second plate 72 and then enter the first discharge port 51 through the through hole 9 and be discharged.

[0087] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A reciprocating turbulent type tea leaf air separator, characterized in that, Includes an air separator housing (1), in which a vertical chamber (2) and a horizontal chamber (3) are formed. The side wall of the vertical chamber (2) is provided with a feed inlet (4), and a centrifugal fan is provided at the bottom of the vertical chamber (2). The bottom of both the vertical chamber (2) and the horizontal chamber (3) are provided with a discharge port group (5). A cylindrical cavity (6) is formed in the vertical compartment (2) along the horizontal direction. The cylindrical cavity (6) is open at both the top and bottom. A wind distribution plate assembly (7) is rotatably installed in the cylindrical cavity (6). A movable drive structure (8) is connected to the end of the wind distribution plate assembly (7). The movable drive structure (8) drives the wind distribution plate assembly (7) to rotate back and forth. The angle of the back-and-forth rotation of the uniform air plate group (7) gradually increases, and when the uniform air plate group (7) rotates to face the discharge port group (5), one end of the uniform air plate group (7) disengages from the cylindrical cavity (6) to form a through hole (9) between the uniform air plate group (7) and the cylindrical cavity (6). The air generated by the centrifugal fan flows upward along the vertical chamber (2) and blows some of the fresh tea leaves that were fed into the cylindrical cavity (6) from the feed inlet (4) into the horizontal chamber (3) and then out of the discharge port group (5). The remaining fresh tea leaves fall onto the wind equalization plate group (7) and are bounced and dispersed as the wind equalization plate group (7) rotates back and forth. Some of the fresh tea leaves on the wind equalization plate group (7) are blown upward by the wind force, and the other part slides down the wind equalization plate group (7) to the discharge port group (5) when the opening (9) is opened. The vertical compartment (2) has a first slot seat (10) and a second slot seat (11) respectively on its two opposite inner walls. The inner walls of the first slot seat (10) and the second slot seat (11) are both formed with arc-shaped slot walls. The cylindrical cavity (6) is formed between the first slot seat (10) and the second slot seat (11). The air distribution plate assembly (7) is in sliding contact with the inner walls of the first slot seat (10) and the second slot seat (11); The first groove seat (10) has a first inclined sidewall (12) at the top, facing the inlet (4), and the second groove seat (11) has a second inclined sidewall (13) at the bottom, facing the outlet group (5). The wind distribution plate assembly (7) includes a first plate (71) and a second plate (72). The second plate (72) is disposed at the bottom of the first plate (71). The edge of the first plate (71) slides in contact with the groove wall of the first groove seat (10). The second plate (72) slides in contact with the groove wall of the second groove seat (11). Wherein, the edge of the first plate (71) is far away from the groove wall of the second groove seat (11), the length of the second plate (72) is half the length of the first plate (71), and a plate protrusion (73) is formed thereon, the plate protrusion (73) is disposed between the first plate (71) and the second groove seat (11). The second plate (72) is embedded with a magnetic sheet (74) to form a magnetic attraction force on the first plate (71); The first plate (71) is movably mounted on the inner wall of the vertical compartment (2) via a shaft, and the second plate (72) is connected to the movable drive structure (8) on its side. The first plate (71) and the second plate (72) are on the same straight line around the central axis of rotation. A limit pin (14) is provided at the opening of the first slot (10); When the first plate (71) can no longer rotate when it reaches the limiting pin (14), the second plate (72) continues to rotate under the drive of the active drive structure (8) and disengages from the second slot (11) to form the through hole (9) between the second slot (11) and the second plate (72).

2. The reciprocating turbulent tea leaf air separator according to claim 1, characterized in that, The active drive structure (8) includes a connecting shaft (81) connected to the side of the second plate (72) and a sleeve (82) connected to the end of the connecting shaft (81). The connecting shaft (81) passes through the side wall of the vertical compartment (2), and an installation compartment (83) is provided outside the air separator housing (1). A limit post (84) is provided inside the installation compartment (83), and the sleeve (82) is rotatably installed on the limit post (84). The installation compartment (83) is equipped with a lifting frame (85), the top of the lifting frame (85) is connected to a hydraulic cylinder (86), the lifting frame (85) is located outside the sleeve (82), the sleeve (82) is connected to a lever (87), and the lifting frame (85) is connected to a first actuating block (88) and a second actuating block (89) at the upper and lower positions opposite to the lever (87). The hydraulic cylinder (86) drives the lifting frame (85) to rise and fall. After the first actuating block (88) descends to abut against the lever (87), the lever (87) drives the sleeve (82) to rotate clockwise. After the second actuating block (89) rises to abut against the lever (87), the lever (87) drives the sleeve (82) to rotate counterclockwise.

3. The reciprocating turbulent tea leaf air separator according to claim 2, characterized in that, A friction pad is provided between the sleeve (82) and the limiting post (84).

4. The reciprocating turbulent tea leaf air separator according to claim 1, characterized in that, The first slot seat (10) and the second slot seat (11) are densely covered with vertical air passage holes (15).

5. The reciprocating turbulent tea leaf air separator according to claim 1, characterized in that, The vertical compartment (2) forms an arc-shaped flow guide wall (16) on the inner wall of the top corner of the wind distribution plate group (7). The horizontal chamber (3) is equipped with an air release plate (17) on the wall near the discharge port group (5).

6. The reciprocating turbulent tea leaf air separator according to claim 1, characterized in that, The discharge port group (5) includes a first discharge port (51) located at the bottom of the vertical chamber (2), a second discharge port (52) located at the bottom of the horizontal chamber (3), and a third discharge port (53). A first partition (18) is provided between the vertical compartment (2) and the horizontal compartment (3), and the first partition (18) does not completely close the passage between the vertical compartment (2) and the horizontal compartment (3); The horizontal chamber (3) is provided with a second partition (19), which is located between the second discharge port (52) and the third discharge port (53).

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