Fresh tea leaf winnowing machine capable of feeding tea leaves in batches

Abstract

The invention relates to the field of tea winnowing, and discloses a fresh tea leaf winnowing machine capable of feeding tea leaves in batches, which comprises a winnowing rack, a vertical cabin and a horizontal cabin are formed in the winnowing rack, a leaf inlet is formed in the side wall of the vertical cabin, a fan is arranged at the bottom of the vertical cabin, and an air uniformizing plate is mounted in the vertical cabin; the bottom of the vertical cabin and the bottom of the horizontal cabin are each provided with a discharging port set, a leaf inlet plate is arranged at a leaf inlet, a plurality of compartments are arranged on the leaf inlet plate, a feeding plate is arranged at an inlet of the leaf inlet plate, and fresh tea leaves discharged from the feeding plate evenly fall into each compartment; and a rotary driving piece is mounted on the side of the leaf inlet plate. According to the tea leaf feeding device disclosed by the invention, the fresh tea leaves are obliquely fed to one side of the leaf inlet by the leaf inlet plate at intervals, and the fresh tea leaves are fed in batches, so that excessive fresh tea leaves are prevented from entering the vertical cabin at one time, the quantity of the fresh tea leaves entering the vertical cabin in a single batch is controlled, and the condition that the fresh tea leaves with light weight are mixed into a fresh tea leaf pile with heavy weight is reduced; and the winnowing effect is optimized.

Description

Technical Field

[0001] The invention relates to the field of tea leaf air separation, and in particular to a fresh tea leaf air separation machine for feeding leaves in batches. Background Art

[0002] Tea air sorting machines are used to sort tea leaves of different weights. They can distinguish the picked fresh tea leaves according to their weight characteristics and make different teas. Traditional tea air sorting machines use ordinary blowers with limited air volume. The air sorting process is prone to problems such as uneven air volume distribution and high breakage rate, resulting in low production efficiency.

[0003] To solve the above problems, the utility model patent with publication number CN221772884U in the prior art provides a tea air sorting machine. The air duct is in the shape of a "7" and adopts a centrifugal fan with stable air output. The wind passes through the wind equalizing plate to evenly distribute the air volume in the vertical air duct, and after turning the corner, the lighter fresh tea leaves are brought into the horizontal air duct. Among them, the arc surface design of the corner can effectively reduce the breakage of tea leaves and improve the air sorting efficiency.

[0004] In the tea air separation process of the existing technology, tea needs to be continuously fed into the air separation machine, and the amount of tea fed cannot be controlled. If too much tea is fed within a certain period of time, a small amount of lighter tea will be mixed into the heavier tea pile, causing some tea to be discharged along with the heavier tea before being blown away by the wind, resulting in incomplete tea air separation. Summary of the Invention

[0005] To this end, the present invention provides a fresh tea leaf air sorting machine that feeds leaves in batches, which effectively solves the technical problem in the prior art that a small amount of lighter tea leaves are mixed into a pile of heavier tea leaves, causing some tea leaves to be discharged along with the heavier tea leaves before being blown up by the wind, resulting in incomplete tea leaf air sorting.

[0006] To solve the above technical problems, the present invention specifically provides the following technical solutions: a fresh tea leaf air sorting machine for feeding leaves in batches, comprising an air sorting frame, wherein a vertical compartment and a horizontal compartment connected to each other are formed in the air sorting frame, a leaf inlet is provided on the side wall of the vertical compartment, a fan is provided at the bottom of the vertical compartment, and an air distribution plate is installed in a vertical cross section of the vertical compartment and directly opposite to the fan;

[0007] The vertical compartment and the horizontal compartment are both provided with a discharge port group at the bottom. The wind generated by the fan flows upward along the vertical compartment and blows part of the fresh tea leaves input from the leaf inlet into the horizontal compartment and then is discharged from the discharge port group. The remaining fresh tea leaves slide along the wind distribution plate to the discharge port group for discharge.

[0008] The leaf inlet is provided with a leaf inlet plate, and a plurality of compartments are provided on the leaf inlet plate. A loading plate is provided at the entrance of the leaf inlet plate, and the fresh tea leaves discharged from the loading plate fall evenly into each of the compartments.

[0009] Among them, a rotating driving part is installed on the side of the leaf inlet plate. Driven by the rotating driving part, the leaf inlet plate tilts toward the leaf inlet side at regular intervals. As the tilt angle of the leaf inlet plate continues to increase, fresh tea leaves of the same batch but different weights in all compartments fall through the leaf inlet one after another.

[0010] Furthermore, the blade inlet plate is composed of a plurality of vertical plates and horizontal plates, the plurality of vertical plates are arranged in a row, the compartments are formed between adjacent vertical plates, and the horizontal plates are connected above the ends of the vertical plates;

[0011] Each compartment is provided with a driving wheel and a driven wheel, a conveyor belt is provided between the driving wheel and the driven wheel, and the conveyor belt extends from the head end to the end end of the compartment;

[0012] An end plate is provided in the compartment at an end portion close to the driving wheel, and an inner wall of the end plate is at least partially fitted with a circumference of the driving wheel.

[0013] Furthermore, a driving shaft is provided in a direction perpendicular to the vertical plate, the driving shaft passes through the vertical plate, and the driving shaft is coaxially connected to each of the driving wheels;

[0014] A mounting frame is installed outside the winnowing frame, a first bearing seat is installed on the mounting frame, a transmission gear is connected to the end of the drive shaft, a first drive motor is provided on the first bearing seat, and a drive end of the first drive motor is connected to a drive gear;

[0015] Wherein, when the vertical plate does not rotate and tilts toward the blade inlet, the driving gear is engaged with the transmission gear, and the first driving motor can drive the transmission gear to rotate through the driving gear.

[0016] Furthermore, a second bearing seat is installed on the mounting frame, a rotating shaft is installed on the side wall of the loading plate, and the rotating shaft is installed on the second bearing seat;

[0017] A limiting column is installed through the mounting frame, the limiting column is supported on the bottom of the loading plate, and a spring is connected between the limiting column and the mounting frame;

[0018] Under the support of the limiting column, the loading plate is in an inclined state and its end is against the vertical plate. When the vertical plate is inclined toward the blade inlet, the vertical plate pushes the loading plate to rotate and tend to a horizontal state.

[0019] Furthermore, the edge of the loading plate is away from the second bearing seat, and a vibration motor is installed on both sides of the loading plate. The driving end of the vibration motor is connected to a cam, and the cam is against the side wall of the loading plate;

[0020] The vibration motor drives the rotation of the cam to push the feeding plate to move back and forth along the direction of the rotation axis, so that the fresh tea leaves on the feeding plate are evenly arranged and distributed under the action of vibration.

[0021] Furthermore, the bottom of the mounting frame is hollowed out and provided with a leaf-dropping plate. The leaf-dropping plate is tilted and its end extends to the leaf inlet.

[0022] Furthermore, the rotary drive member includes a connecting shaft connected to the side wall of the blade inlet plate, and a second driving motor provided at an end of the connecting shaft;

[0023] A third bearing seat is mounted on the mounting frame, and the connecting shaft is movably mounted on the third bearing seat.

[0024] Furthermore, a guide plate is provided at the blade inlet, and a guide channel is formed in the guide plate;

[0025] A guide plate is installed obliquely on the inner wall of the vertical cabin facing the guide channel.

[0026] Furthermore, the air distribution plate is arranged at an angle, and its end is facing the discharge port group;

[0027] The inner wall of the top corner of the vertical cabin facing the wind equalizing plate is formed into an arc-shaped guide wall;

[0028] The wall surface of the horizontal chamber close to the discharge port group is equipped with an air release plate.

[0029] Further, the discharge port group includes a first discharge port provided at the bottom of the vertical compartment, a second discharge port provided at the bottom of the horizontal compartment, and a third discharge port;

[0030] 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;

[0031] 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.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] In the present invention, at regular intervals, the leaf inlet plate tilts toward the leaf inlet to load fresh tea leaves, and fresh tea leaves are loaded in batches, thereby preventing excessive fresh tea leaves from entering the vertical compartment at one time. The amount of fresh tea leaves entering the vertical compartment in a single batch is controlled, and the situation where lighter fresh tea leaves are mixed with heavier fresh tea leaves is reduced, thereby optimizing the air separation effect.

[0034] Furthermore, during the feeding process of fresh tea leaves, the angle of the leaf feeding plate gradually increases, and the batches of fresh tea leaves in the heavier compartments slide down and fall into the vertical compartment first, and the batches of fresh tea leaves in the lighter compartments slide down and fall into the vertical compartment later, so that the same batch of fresh tea leaves enters the vertical compartment in sequence according to their weight, which refines the feeding order of a single batch of fresh tea leaves and makes the air selection structure more refined. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0036] Figure 1 A schematic structural diagram of a fresh tea leaf air separator for feeding tea leaves in batches according to an embodiment of the present invention;

[0037] Figure 2 Schematic diagram of the internal structure of the air separation frame in an embodiment of the present invention;

[0038] Figure 3 Schematic diagram of the structure of the mounting frame, blade inlet plate, and loading plate in an embodiment of the present invention;

[0039] Figure 4 for Figure 3 Structural diagram from another perspective;

[0040] Figure 5 for Figure 3 Structural diagram from another perspective;

[0041] Figure 6 Schematic diagram of the structure of the blade inlet plate in an embodiment of the present invention;

[0042] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of A in the figure.

[0043] The numbers in the figure represent the following:

[0044] 1. Air separation frame; 2. Vertical compartment; 3. Horizontal compartment; 4. Inlet vane; 5. Air distribution plate; 6. Discharge port assembly; 7. Inlet vane; 8. Rotary drive element; 9. Compartment; 10. Loading plate; 11. Mounting frame; 12. First bearing seat; 13. First drive motor; 14. Drive gear; 15. Second bearing seat; 16. Rotating shaft; 17. Limiting column; 18. Spring; 19. Vibration motor; 20. Cam; 21. Defoliator; 22. Guide plate; 23. Guide channel; 24. Guide vane; 25. Arc-shaped guide wall; 26. Air release plate; 27. First partition; 28. Second partition

[0045] 41. Vertical plate; 42. Horizontal plate; 43. Driving pulley; 44. Driven pulley; 45. Conveyor belt; 46. End plate; 47. Drive shaft; 48. Transmission gear;

[0046] 61, first discharge port; 62, second discharge port; 63, third discharge port;

[0047] 81. Connecting shaft; 82. Second drive motor; 83. Third bearing seat. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] like Figure 1 、 Figure 2 As shown, the present invention provides a fresh tea leaf air sorting machine for feeding leaves in batches, comprising an air sorting frame 1, a vertical compartment 2 and a horizontal compartment 3 connected to each other formed in the air sorting frame 1, a leaf inlet 7 being provided on the side wall of the vertical compartment 2, a fan being provided at the bottom of the vertical compartment 2, and an air equalizing plate 5 being installed in the vertical cross section of the vertical compartment 2 and directly opposite to the fan.

[0050] The fan is facing the wind equalizing plate 5. The fan is generally a centrifugal fan. The wind equalizing plate 5 is densely covered with small holes. The dense small holes on the wind equalizing plate 5 evenly distribute the air volume in the vertical cabin 2 to achieve wind uniformity control. An arc-shaped guide wall 25 is formed on the inner wall of the top corner of the vertical cabin 2 facing the wind equalizing plate 5 to guide the vertical wind into horizontal wind.

[0051] The wind flowing in the horizontal cabin 3 needs to be discharged outside the horizontal cabin 3. Specifically, an air release plate 26 is installed on the wall of the horizontal cabin 3 close to the discharge port group 6. The wind flowing in the horizontal cabin 3 can be discharged directly from the air release plate 26, wherein the air release plate 26 is also densely covered with small holes.

[0052] In the present invention, a discharge port group 6 is provided at the bottom of the vertical cabin 2 and the horizontal cabin 3. The wind generated by the fan flows upward along the vertical cabin 2 and blows part of the lighter fresh tea leaves input from the leaf inlet 7 into the horizontal cabin 3 and then discharged from the discharge port group 6. The remaining heavier fresh tea leaves slide along the wind equalizing plate 5 to the discharge port group 6 for discharge.

[0053] Specifically, if Figure 2 As shown, the discharge port group 6 includes a first discharge port 61 provided at the bottom of the vertical compartment 2, a second discharge port 62 and a third discharge port 63 provided at the bottom of the horizontal compartment 3, and a first partition 27 is provided between the vertical compartment 2 and the horizontal compartment 3. The first partition 27 does not completely close the passage between the vertical compartment 2 and the horizontal compartment 3;

[0054] A second partition 28 is provided in the horizontal compartment 3 , and the second partition 28 is located between the second discharge port 62 and the third discharge port 63 . The first partition 27 can separate the first discharge port 61 from the second discharge port 62 , and the second partition 28 can separate the second discharge port 62 from the third discharge port 63 .

[0055] After the fresh tea leaves enter the vertical cabin 2, they fall downward under the action of gravity. The vertical upward wind generated by the fan flows upward along the vertical cabin 2. Some of the heavier fresh tea leaves are not blown up and slide down along the wind uniforming plate 5 to be discharged from the first discharge port 61. Some of the lighter fresh tea leaves are blown up by the wind and carried upward to the horizontal cabin 3. After being blown horizontally by the wind, the tea leaves with uniform weight are discharged from the second discharge port 62, and the lightest tea leaves are discharged from the third discharge port 63. The wind is discharged from the wind release plate 26.

[0056] In order to balance the pressure and prevent a large amount of fresh tea leaves entering the horizontal compartment 3 from entering the third discharge port 63 , an air release plate 26 may also be provided on the top of the horizontal compartment 3 .

[0057] In the present invention, the air distribution plate 5 is arranged at an angle, and its end is facing the discharge port group 6. The leaf inlet 7 is arranged close to one of the higher ends of the air distribution plate 5. On the one hand, it can ensure that the fresh tea leaves can roll to the first discharge port 61 under the action of gravity. On the other hand, it can ensure that the lighter fresh tea leaves mixed into the heavier fresh tea leaf pile during the rolling process can be gradually blown up by the wind.

[0058] In actual application, the upward wind will prevent some tea leaves from being discharged. In order to avoid the upward wind from affecting the discharge of tea leaves, the present invention makes the following design, such as Figure 2As shown, a guide plate 22 is provided at the leaf inlet 7, and a guide channel 23 is formed in the guide plate 22. A guide piece 24 is installed obliquely on the inner wall of the vertical cabin 2 facing the guide channel 23. The guide piece 24 can prevent the wind from blowing up the tea leaves just discharged from the guide channel 23, and avoid the tea leaves from being blown back into the guide channel 23. The guide piece 24 is consistent with the width of the guide channel 23.

[0059] In the present invention, tea leaves are fed in batches through the leaf feeding plate 4. Specifically, Figure 3 and Figure 4 As shown, a leaf inlet plate 4 is provided at the leaf inlet 7, and a plurality of compartments 9 are provided on the leaf inlet plate 4. A loading plate 10 is provided at the entrance of the leaf inlet plate 4, and the fresh tea leaves discharged from the loading plate 10 fall evenly into each compartment 9;

[0060] Among them, a rotating driving member 8 is installed on the side of the leaf inlet plate 4. Driven by the rotating driving member 8, the leaf inlet plate 4 tilts toward the leaf inlet port 7 at regular intervals. As the tilt angle of the leaf inlet plate 4 continues to increase, fresh tea leaves of the same batch but different weights in all compartments 9 fall through the leaf inlet port 7 one after another.

[0061] In the present invention, at regular intervals, the leaf inlet plate 4 tilts toward the leaf inlet 7 to load fresh tea leaves, and the fresh tea leaves are loaded in batches to prevent excessive fresh tea leaves from entering the vertical compartment 2 at one time. The amount of fresh tea leaves entering the vertical compartment 2 in a single batch is controlled, and the situation where lighter fresh tea leaves are mixed with heavier fresh tea leaves is reduced, thereby optimizing the air separation effect.

[0062] During the feeding process of a batch of fresh tea leaves, the leaf inlet plate 4 gradually increases its angle, and the friction force generated by the leaf inlet plate 4 on the fresh tea leaves gradually decreases. Under the action of gravity, the batches of fresh tea leaves in the heavier compartments 9 slide down first and fall into the vertical compartment 2. The gravity of the fresh tea leaves in the lighter compartments 9 is not enough to resist the friction and cannot fall. Only when the leaf inlet plate 4 is tilted to a certain degree, the batches of fresh tea leaves in the lighter compartments 9 can slide down and fall into the vertical compartment 2. The same batch of fresh tea leaves enters the vertical compartment 2 in sequence according to their weight, which refines the feeding order of a single batch of fresh tea leaves and makes the air separation structure more refined.

[0063] Among them, the distribution of tea leaves in different compartments 9 may be different. The tea leaves in each compartment 9 are regarded as a whole. Under the condition of uniform distribution of tea leaves, if there are more heavy tea leaves in the compartment 9, the weight of the tea leaves as a whole is heavy, and the gravity it receives is large, so it will slide down earlier. If there are more light tea leaves in the compartment 9, the weight of the tea leaves as a whole is light, and the gravity it receives is small, so it will slide down later.

[0064] In the present invention, the leaf inlet plate 4 is initially in a horizontal state. If the tea leaves are to be evenly distributed in the compartment 9, the present invention makes the following design, such as Figure 3 、 Figure 6 and Figure 7 As shown, the blade inlet plate 4 is composed of a plurality of vertical plates 41 and a horizontal plate 42. The vertical plates 41 are arranged in a row, and compartments 9 are formed between adjacent vertical plates 41. The horizontal plate 42 is connected to the upper end of the vertical plates 41.

[0065] Each compartment 9 is provided with a driving wheel 43 and a driven wheel 44. A conveyor belt 45 is provided between the driving wheel 43 and the driven wheel 44. The conveyor belt extends from the first end to the end of the compartment 9.

[0066] An end plate 46 is provided at the end of the compartment 9 near the driving wheel 43, and the inner wall of the end plate 46 at least partially fits with the circumference of the driving wheel 43. The end plate 46 can prevent fresh tea leaves from sliding off the end of the compartment 9 away from the leaf inlet 7.

[0067] The conveyor belt 45 is driven forward by the driving wheel 43 to transport the fresh tea leaves. The fresh tea leaves are placed on the conveyor belt 45 and are evenly distributed in the compartment 9 under the drive of the conveyor belt 45.

[0068] The batch feeding in the present invention requires that the fresh tea leaves in the compartment 9 are dumped down during the tilting process of the leaf inlet plate 4, and the compartment 9 is no longer fed. Specifically, Figure 7 As shown, a drive shaft 47 is provided in a direction perpendicular to the vertical plate 41 , and the drive shaft 47 passes through the vertical plate 41 . The drive shaft 47 is coaxially connected to each driving wheel 43 , and the driven wheel 44 is installed in the compartment 9 through the shaft.

[0069] A mounting frame 11 is mounted on the outside of the winnowing frame 1, a first bearing seat 12 is mounted on the mounting frame 11, a transmission gear 48 is connected to the end of the drive shaft 47, a first drive motor 13 is provided on the first bearing seat 12, and a drive end of the first drive motor 13 is connected to a drive gear 14;

[0070] When the vertical plate 41 does not rotate and tilts toward the blade inlet 7 , the driving gear 14 is engaged with the transmission gear 48 , and the first driving motor 13 can drive the transmission gear 48 to rotate via the driving gear 14 .

[0071] In the above embodiment, when the vertical plate 41 is horizontal, the driving gear 14 is engaged with the transmission gear 48, and the first driving motor 13 can drive the transmission gear 48 to rotate through the driving gear 14, the driving shaft 47 rotates, and the conveyor belt 45 is transported forward, so that the fresh tea leaves are transported forward. When the fresh tea leaves are evenly distributed in the compartment 9, the leaf inlet plate 4 is driven to tilt toward the leaf inlet 7. At this time, the transmission gear 48 is away from the driving gear 14, the conveyor belt 45 stops moving, and can no longer transport the fresh tea leaves into the compartment 9. After the fresh tea leaves in the compartment 9 are completely poured out, the leaf inlet plate 4 is reset to the horizontal state, the transmission gear 48 is re-engaged with the driving gear 14, and the first driving motor 13 can drive the transmission gear 48 to rotate through the driving gear 14, the driving shaft 47 rotates, and the conveyor belt 45 is transported forward, so that the fresh tea leaves are transported forward, and the fresh tea leaves are evenly distributed in the compartment 9. This step is repeated.

[0072] In order to further prevent fresh tea leaves from being loaded onto the leaf inlet plate 4 during the pouring process, the present invention also makes the following design: Figure 3 and Figure 4 As shown, a second bearing seat 15 is mounted on the mounting frame 11, a rotating shaft 16 is mounted on the side wall of the loading plate 10, and the rotating shaft 16 is mounted on the second bearing seat 15;

[0073] A limiting column 17 is installed through the mounting frame 11, and the limiting column 17 is supported on the bottom of the loading plate 10. A spring 18 is connected between the limiting column 17 and the mounting frame 11; under the support of the limiting column 17, the loading plate 10 is in an inclined state and its end rests on the vertical plate 41. When the vertical plate 41 tilts toward the side of the blade inlet 7, the vertical plate 41 pushes the loading plate 10 to rotate and tend to a horizontal state.

[0074] When the vane inlet plate 4 is in a horizontal state, the loading plate 10 is in an inclined state. At this time, the loading plate 10 can continue to load materials to the vane inlet plate 4, and when the vane inlet plate 4 gradually tilts toward the side of the vane inlet 7, the end of the vane inlet plate 4 will push the loading plate 10 to rotate, thereby gradually adjusting to a horizontal state. The loading plate 10 that is close to a horizontal state will no longer load materials onto the vane inlet plate 4. When the vane inlet plate 4 is reset to its initial position (reset to its initial horizontal state), under the action of the spring 18, the limit column 17 generates a supporting force on the loading plate 10 so that the loading plate 10 is also reset to its initial inclined state. At this time, the loading plate 10 can load materials onto the vane inlet plate 4 again.

[0075] To ensure uniform cloth in each compartment 9, the present invention makes the following design, such as Figure 3 As shown, the edge of the loading plate 10 is away from the second bearing seat 15, and a vibration motor 19 is installed on both sides of the loading plate 10. The driving end of the vibration motor 19 is connected to a cam 20, and the cam 20 is against the side wall of the loading plate 10;

[0076] The vibration motor 19 drives the cam 20 to rotate to push the loading plate 10 to move back and forth along the rotation axis 16, so that the fresh tea leaves on the loading plate 10 are evenly arranged and distributed under the action of vibration.

[0077] The cam 20 is driven to rotate by the motor, thereby driving the loading plate 10 to move back and forth along the rotating shaft 16, so that the fresh tea leaves on the loading plate 10 are evenly distributed under the action of vibration. Since the side of the loading plate 10 is away from the second bearing seat 15, it will not interfere with the second bearing seat 15 during the back and forth movement. The above only lists one vibration method. In actual applications, other methods can also be used to drive the loading plate 10 to vibrate so that the fresh tea leaves distributed thereon are more evenly distributed.

[0078] During the back and forth vibration of the feeding plate 10 and the back and forth rotation of the leaf feeding plate 4, a small amount of fresh tea leaves fall onto the mounting rack 11. In order to avoid the waste of fresh tea leaves, the present invention makes the following design, such as Figure 5 As shown, the bottom of the mounting frame 11 is hollowed out and is provided with a leaf drop plate 21. The leaf drop plate 21 is set at an angle, and its end extends to the leaf inlet 7. The fresh tea leaves that fall onto the mounting frame 11 slide from the leaf drop plate 21 to the leaf inlet 7 and fall into the vertical compartment 2.

[0079] In the present invention, driven by the rotary drive member 8, the leaf inlet plate 4 tilts toward the leaf inlet 7 at intervals. As the tilt angle of the leaf inlet plate 4 increases, fresh tea leaves of the same batch but different weights in all compartments 9 fall through the leaf inlet 7 one after another. The rotary drive member 8 adopts the following embodiment, such as Figure 3 As shown, the rotary drive member 8 includes a connecting shaft 81 connected to the side wall of the inlet blade 4, and a second drive motor 82 arranged at the end of the connecting shaft 81; a third bearing seat 83 is installed on the mounting frame 11, and the connecting shaft 81 is movably installed on the third bearing seat 83.

[0080] The second driving motor 82 drives the blade inlet plate 4 to move back and forth through the connecting shaft 81 .

[0081] The driving motors in the present invention are all connected to the controller, and the rotation angle, rotation time, etc. of the driving motors are all controlled by the controller.

[0082] In summary, the main implementation process of the present invention is:

[0083] A certain amount of fresh tea leaves are added to the upper feeding plate 10. The inclined feeding plate 10 distributes the fresh tea leaves evenly under vibration, and the fresh tea leaves slide to the starting end of each compartment 9;

[0084] At this time, the driving gear 14 is meshed with the transmission gear 48, and the first driving motor 13 can drive the transmission gear 48 to rotate through the driving gear 14. The driving shaft 47 rotates and drives the conveyor belt 45 forward through the driving wheel 43. The fresh tea leaves follow the movement of the conveyor belt 45. Driven by the conveyor belt 45, the fresh tea leaves are evenly distributed in the compartment 9.

[0085] When the fresh tea leaves are evenly distributed in the compartment 9, the second drive motor 82 drives the leaf inlet plate 4 to tilt toward the leaf inlet 7 through the connecting shaft 81, the transmission gear 48 moves away from the drive gear 14, and the conveyor belt 45 stops moving, and can no longer transport fresh tea leaves into the compartment 9;

[0086] The inlet blade 4 gradually increases its angle during the rotation process. Under the action of gravity, the batches of fresh tea leaves in the heavier compartments 9 slide down first and fall into the vertical compartment 2. There are more heavy tea leaves in the "batches of fresh tea leaves in the heavier compartments 9". After entering the vertical compartment 2, most of the heavier tea leaves fall downward under the action of gravity and slide down along the wind balancing plate 5 to be discharged from the first discharge port 61. A small part of the lighter tea leaves are blown up by the wind and carried upward into the horizontal compartment 3. After being blown horizontally by the wind, the tea leaves with uniform weight are discharged from the second discharge port 62, and the lightest tea leaves are discharged from the third discharge port 63. The wind is discharged from the air release plate 26.

[0087] When the leaf inlet plate 4 is tilted to a certain degree, the batches of fresh tea leaves in the lighter compartment 9 slide down and fall into the vertical compartment 2. There are more light tea leaves in the "batch of fresh tea leaves in the lighter compartment 9". After this part of the tea leaves enters the vertical compartment 2, a small part of the heavier fresh tea leaves fall downward under the action of gravity, slide down along the wind balancing plate 5 to be discharged from the first discharge port 61, and most of the lighter fresh tea leaves are blown up by the wind and carried upward to the horizontal compartment 3. After being blown horizontally by the wind, the fresh tea leaves with uniform weight are discharged from the second discharge port 62, and the lightest fresh tea leaves are discharged from the third discharge port 63. The wind is discharged from the air release plate 26;

[0088] After the fresh tea leaves in the compartment 9 are completely poured out, the leaf inlet plate 4 is reset to a horizontal state, the transmission gear 48 is re-engaged with the drive gear 14, the first drive motor 13 can drive the transmission gear 48 to rotate through the drive gear 14, the drive shaft 47 rotates, and the conveyor belt 45 is transported forward, so that the fresh tea leaves are transported forward and the fresh tea leaves are evenly distributed in the compartment 9. The above steps are repeated to realize the fresh tea leaf air separation process in batches.

[0089] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A tea leaf air sorting machine for feeding tea leaves in batches, characterized in that: The invention comprises an air separation frame (1), wherein a vertical chamber (2) and a horizontal chamber (3) connected to each other are formed in the air separation frame (1), a blade inlet (7) is provided on the side wall of the vertical chamber (2), a fan is provided at the bottom of the vertical chamber (2), and an air distribution plate (5) is installed in a vertical cross section of the vertical chamber (2) and directly opposite to the fan; The bottom of the vertical cabin (2) and the bottom of the horizontal cabin (3) are both provided with a discharge port group (6), and the wind generated by the fan flows upward along the vertical cabin (2) and blows part of the fresh tea leaves input from the leaf inlet (7) into the horizontal cabin (3) and then discharged from the discharge port group (6), while the remaining fresh tea leaves slide along the wind balancing plate (5) to the discharge port group (6) for discharge; The leaf inlet (7) is provided with a leaf inlet plate (4), a plurality of compartments (9) are provided on the leaf inlet plate (4), a loading plate (10) is provided at the entrance of the leaf inlet plate (4), and the fresh tea leaves discharged from the loading plate (10) fall evenly into each of the compartments (9); A rotating driving member (8) is installed on the side of the leaf inlet plate (4). Driven by the rotating driving member (8), the leaf inlet plate (4) tilts toward the leaf inlet (7) at intervals. As the tilt angle of the leaf inlet plate (4) increases, fresh tea leaves of the same batch but different weights in all compartments (9) fall through the leaf inlet (7) one after another.

2. The tea leaf air sorting machine for batch feeding of fresh tea leaves according to claim 1, characterized in that: The blade inlet plate (4) is composed of a plurality of vertical plates (41) and a horizontal plate (42), wherein the vertical plates (41) are arranged in a row, and the compartments (9) are formed between adjacent vertical plates (41), and the horizontal plate (42) is connected to the ends of the vertical plates (41); Each compartment (9) is provided with a driving wheel (43) and a driven wheel (44), a conveyor belt (45) is provided between the driving wheel (43) and the driven wheel (44), and the conveyor belt extends from the head end to the end end of the compartment (9); An end plate (46) is provided in the compartment (9) at an end portion close to the driving wheel (43), and an inner wall of the end plate (46) at least partially fits with the circumference of the driving wheel (43).

3. The tea leaf air sorting machine for batch feeding of fresh tea leaves according to claim 2, characterized in that: A drive shaft (47) is provided in a direction perpendicular to the vertical plate (41), the drive shaft (47) passes through the vertical plate (41), and the drive shaft (47) is coaxially connected to each of the driving wheels (43); A mounting frame (11) is installed outside the air separation frame (1), a first bearing seat (12) is installed on the mounting frame (11), an end of the drive shaft (47) is connected to a transmission gear (48), a first drive motor (13) is provided on the first bearing seat (12), and a drive end of the first drive motor (13) is connected to a drive gear (14); When the vertical plate (41) does not rotate and tilts toward the blade inlet (7), the driving gear (14) is engaged with the transmission gear (48), and the first driving motor (13) can drive the transmission gear (48) to rotate via the driving gear (14).

4. The tea leaf air sorting machine for batch feeding of fresh tea leaves according to claim 3, characterized in that: A second bearing seat (15) is mounted on the mounting frame (11), a rotating shaft (16) is mounted on the side wall of the loading plate (10), and the rotating shaft (16) is mounted on the second bearing seat (15); A limiting column (17) is installed through the mounting frame (11), the limiting column (17) is supported on the bottom of the loading plate (10), and a spring (18) is connected between the limiting column (17) and the mounting frame (11); Under the support of the limiting column (17), the loading plate (10) is in an inclined state and its end is against the vertical plate (41). When the vertical plate (41) is inclined toward the blade inlet (7), the vertical plate (41) pushes the loading plate (10) to rotate and tend to a horizontal state.

5. The tea leaf air sorting machine for batch feeding of fresh tea leaves according to claim 4, characterized in that: The edge of the loading plate (10) is away from the second bearing seat (15), and a vibration motor (19) is installed on both sides of the loading plate (10), and a cam (20) is connected to the driving end of the vibration motor (19), and the cam (20) is against the side wall of the loading plate (10); The vibration motor (19) drives the rotation of the cam (20) to push the loading plate (10) to move back and forth along the direction of the rotating shaft (16), so that the fresh tea leaves on the loading plate (10) are evenly arranged and distributed under the action of vibration.

6. The fresh tea leaf air sorting machine for batch feeding of tea leaves according to claim 3, characterized in that: The bottom of the mounting frame (11) is hollowed out and provided with a leaf-dropping plate (21). The leaf-dropping plate (21) is arranged at an angle, and its end portion extends to the leaf inlet (7).

7. The tea leaf air sorting machine for batch feeding of fresh tea leaves according to claim 3, characterized in that: The rotary drive member (8) comprises a connecting shaft (81) connected to the side wall of the blade inlet plate (4), and a second drive motor (82) arranged at the end of the connecting shaft (81); A third bearing seat (83) is mounted on the mounting frame (11), and the connecting shaft (81) is movably mounted on the third bearing seat (83).

8. The fresh tea leaf air sorting machine for batch feeding of tea leaves according to claim 1, characterized in that: A guide plate (22) is provided at the blade inlet (7), and a guide channel (23) is formed in the guide plate (22); A guide plate (24) is obliquely installed on the inner wall of the vertical chamber (2) at a position facing the guide channel (23).

9. The fresh tea leaf air sorting machine for batch feeding of tea leaves according to claim 1, characterized in that: The air distribution plate (5) is arranged at an angle, and its end is directly facing the discharge port group (6); The inner wall of the top corner of the vertical cabin (2) facing the wind balancing plate (5) is formed into an arc-shaped flow guide wall surface (25); An air release plate (26) is installed on the wall of the horizontal chamber (3) close to the discharge port group (6).

10. The fresh tea leaf air sorting machine for batch feeding of tea leaves according to claim 1, characterized in that: The discharge port group (6) includes a first discharge port (61) provided at the bottom of the vertical chamber (2), a second discharge port (62) provided at the bottom of the horizontal chamber (3), and a second discharge port (62); A first partition (27) is provided between the vertical compartment (2) and the horizontal compartment (3), wherein the first partition (27) does not completely close the passage between the vertical compartment (2) and the horizontal compartment (3); A second partition (28) is provided in the horizontal chamber (3), and the second partition (28) is located between the second discharge port (62) and the third discharge port (63).

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