Threshing and redrying impurity removal device and impurity removal system

Abstract

The utility model provides a threshing and redrying impurity removal device and an impurity removal system, and relates to the technical field of threshing and redrying technologies. The threshing, redrying and impurity removing device comprises a working box, a feeding port is formed in the top of the working box, and an air inlet is formed in the side wall of the working box; a winnowing mechanism is arranged at the air inlet and is suitable for winnowing impurities in the tobacco leaves; a grabbing mechanism is arranged on the side wall, adjacent to the winnowing mechanism, of the working box. A first collecting box, a tobacco leaf collecting box and a second collecting box are sequentially arranged below the grabbing mechanism. The grabbing mechanism is suitable for classifying the tobaccos and impurities. By arranging the winnowing mechanism and the grabbing mechanism, tobacco leaves can be collected into the tobacco leaf collecting box, impurities can be collected into the first collecting box and the second collecting box, automatic tobacco leaf impurity removal is achieved, follow-up processes such as baking and fermentation are facilitated for the tobacco leaves subjected to impurity removal, the overall use efficiency of raw materials can be improved, and the tobacco leaf impurity removal device is suitable for popularization and application. The production cost is reduced and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leaf redrying, in particular to a leaf threshing, redrying and impurity removal device and an impurity removal system. Background Art

[0002] As the first stage of cigarette production, threshing and redrying plays a crucial role in ensuring the quality of tobacco raw materials. With the advancement of refined, scaled-up, and purified tobacco production, tobacco companies are placing greater emphasis on raw tobacco quality, particularly its purity, which directly impacts the formulation and brand stability of cigarettes. Tobacco purity in the threshing and redrying process primarily refers to the presence of impurities and stem content in the leaves. Failure to thoroughly remove these impurities during tobacco processing will negatively impact the inherent quality of the cigarettes and can easily lead to malfunctions in cigarette production equipment.

[0003] Tobacco leaves are usually screened to remove impurities. However, the efficiency of screening is not high, which seriously affects the efficiency of the leaf threshing and redrying process. At the same time, a small amount of normal tobacco leaves are mixed in with the impurities after impurity removal. Directly discarding the impurities will cause waste. In summary, there is an urgent need for a device that can automatically remove impurities from tobacco leaves. Utility Model Content

[0004] To address the above-mentioned and related issues, the present invention provides, in its first aspect, a tobacco leaf threshing, redrying, and impurity removal device. The device comprises a working box, a feed port disposed at the top of the working box, and an air inlet disposed on a side wall of the working box; a winch mechanism disposed at the air inlet, adapted to separate impurities from tobacco leaves; a gripping mechanism disposed on the side wall of the working box adjacent to the winch mechanism; and a first collection box, a tobacco leaf collection box, and a second collection box disposed sequentially below the gripping mechanism; the gripping mechanism adapted to separate tobacco and impurities.

[0005] In one embodiment, the air separation mechanism includes an air inlet pipe and a diverter plate, and the diverter plate is provided with multiple ventilation holes; the air inlet pipe is arranged in the air inlet and one end of the air inlet pipe located in the inner cavity of the working box is connected to the diverter plate.

[0006] In one embodiment, the grabbing mechanism includes a support rod and a first driving member arranged between the side walls of two working boxes adjacent to the air separation mechanism, and a movable box connected to the driving shaft of the first driving member; a support rod through hole is provided on the movable box, and the support rod through hole is slidably connected to the support rod; a second driving member and a manipulator connected to the driving shaft of the second driving member are provided in the inner cavity of the movable box; a through slot is also provided at the bottom of the movable box, and the working end of the manipulator passes through the through slot and is located outside the through slot.

[0007] In one embodiment, a box body entrance and exit are provided in the side wall of the working box where the gripping mechanism is located, and a box door is provided on the box body entrance and exit; a plurality of slide rails are provided at the bottom of the inner cavity of the working box, and sliders are provided at the bottom of the first collection box, the tobacco collection box and the second collection box, and the corresponding sliders are slidably connected to the slide rails.

[0008] In one embodiment, a filter plate groove is provided on the side wall of the working box opposite to the air separation mechanism, and a filter plate is provided in the filter plate groove; a fixing part through hole is provided on the side wall of the filter plate groove, and a fixing groove corresponding to the fixing part through hole is provided on the filter plate, and the filter plate groove is connected to the filter plate through a fixing part; the fixing part includes a fixing rod slidably connected to the fixing part through hole and the fixing groove, a handle is provided on the top of the fixing rod, and an annular stopper is provided on the part of the fixing rod close to the fixing groove; the fixing part also includes a reset spring, which is provided in the fixing part through hole and surrounds the fixing rod.

[0009] In one embodiment, a baffle is further provided on the side wall of the working box where the grabbing mechanism is located, and the angle between the baffle and its corresponding working box side wall is 30 to 60 degrees. The baffle is located below the sorting mechanism and above the grabbing mechanism.

[0010] In some possible implementation modes, a feed pipe is further provided at the feed port; and / or an observation window is further provided on the side wall of the working box where the gripping mechanism is located.

[0011] In some embodiments, the number of ventilation holes is 75 to 225; and / or the cross-sectional shape of the ventilation holes is selected from any one of circular, square, or oval;

[0012] The second aspect of the present invention provides a leaf threshing, redrying and impurity removal system, including the leaf threshing, redrying and impurity removal device provided in the first aspect of the present invention; and also includes an image recognition mechanism, which is arranged on the inner wall of the working box and is suitable for identifying tobacco and impurities in the first collection box, the tobacco leaf collection box and the second collection box.

[0013] In some possible implementations, a host computer is further included that is located outside the working box; the host computer is connected to the air separation mechanism, the gripping mechanism, and the image recognition mechanism through circuits.

[0014] The leaf threshing, redrying and impurity removal device and system provided by the utility model has the following beneficial effects:

[0015] 1) The utility model is capable of collecting tobacco leaves into a tobacco leaf collection box and collecting impurities into a first collection box and a second collection box by providing an air separation mechanism and a gripping mechanism, thereby realizing automated tobacco leaf impurity removal. The tobacco leaves after impurity removal are convenient for subsequent baking, fermentation and other processes, which helps to improve the overall utilization efficiency of raw materials, reduce production costs and improve production efficiency.

[0016] 2) The utility model adopts an image acquisition mechanism and a gripping mechanism to extract color features according to the color differences of tobacco leaves and uses edge detection and texture analysis algorithms to extract texture features of tobacco leaves, thereby improving the efficiency of tobacco leaf recovery, reducing manual intervention, and improving the overall operating efficiency of the production line.

[0017] 3) This utility model utilizes a filter plate to remove dust from tobacco leaves, preventing it from settling on the leaf surface. This results in a cleaner tobacco leaf, minimizing its impact on the final product and improving its overall quality and taste. Furthermore, dust removal stabilizes tobacco leaves during storage, reducing the risk of spoilage and mildew, thereby extending their shelf life. Furthermore, the fixtures facilitate easy removal and cleaning of the filter plate, enhancing the device's practicality.

[0018] 4) This utility model uses comprehensive automation technology to make the entire sorting process fast and efficient, capable of processing large quantities of tobacco leaves in a relatively short period of time, reducing production cycles and increasing overall output. Furthermore, through image acquisition and analysis technology, the system can accurately identify the specific location and status of tobacco leaves, effectively reducing errors during the sorting process, improving product consistency and quality, and reducing reliance on manual labor, effectively reducing labor costs. Furthermore, the efficient operating process reduces material waste and improves resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a cross-sectional schematic diagram of the present invention.

[0021] Figure 3 It is a partial structural diagram of the grabbing mechanism of the present invention.

[0022] Figure 4 Schematic diagram of the structure of the fixing member of the present invention.

[0023] Figure 5 This is a structural schematic diagram of the diverter plate of the present invention.

[0024] Figure 6 This is another structural schematic diagram of the diverter plate of the present invention.

[0025] Reference numerals

[0026] Work Box 1

[0027] Feed port 11

[0028] Feed pipe 11.1

[0029] Air inlet 12

[0030] Box inlet and outlet 13

[0031] Door 13.1

[0032] Slide rail 14

[0033] Slider 15

[0034] Filter plate groove 16

[0035] Fixing hole 16.1

[0036] Baffle 17

[0037] Observation window 18

[0038] Winnowing mechanism 2

[0039] Air inlet pipe 21

[0040] Diverter plate 22

[0041] Ventilation holes 22.1

[0042] Grasping mechanism 3

[0043] Support rod 31

[0044] First driving member 32

[0045] Moving Box 4

[0046] Support rod through hole 41

[0047] Second driving member 42

[0048] Robot 43

[0049] Through slot 44

[0050] Filter plate 5

[0051] Fixed slot 51

[0052] Fixing 6

[0053] Fixed rod 61

[0054] Handle 62

[0055] Annular stopper 63

[0056] Return spring 64

[0057] Image recognition mechanism 7

[0058] Host computer 8

[0059] First collection box 91

[0060] Tobacco collection box 92

[0061] Second collection box 93 DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "left side", "right side", "upper side", "lower side", "above", "below", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0063] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0064] In addition, in the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0065] The utility model provides a leaf threshing, re-baking and impurity removal device, Figure 1 and Figure 2The threshing, redrying, and impurity removal device includes a work box 1 with a feed port 11 at the top and an air inlet 12 in the side wall. A winnowing mechanism 2 is located at the air inlet 12, suitable for separating impurities from tobacco leaves. Adjacent to the winnowing mechanism 2 is a gripping mechanism 3 located on the side wall of the work box 1. Below this gripping mechanism 3 are a first collection box 91, a tobacco collection box 92, and a second collection box 93 arranged in sequence. The gripping mechanism 3 is suitable for separating tobacco and impurities. For reference, an observation window 18 is also provided on the side wall of the work box 1 to facilitate observation of the working process within the work box 1 by the operator. The working principle of the present invention is as follows: tobacco leaves enter the working box 1 through the air inlet 12, and the air separation mechanism 2 blows the falling tobacco leaves. Tobacco leaves within a certain weight range will fall into the tobacco collection box 92, tobacco leaves and impurities lighter than the weight range will fall into the first collection box 91, and tobacco leaves and impurities heavier than the weight range will fall into the second collection box 93. The grabbing mechanism 3 grabs the tobacco leaves in the first collection box 91 and the second collection box 93 into the tobacco collection box 92, and at the same time grabs the impurities in the tobacco collection box 92 into the first collection box 91 or the second collection box 93. By providing the air separation mechanism 2 and the grabbing mechanism 3, the present invention can collect tobacco leaves into the tobacco collection box 92 and impurities into the first collection box 91 and the second collection box 93, thereby realizing automated tobacco impurity removal. The impurity-removed tobacco leaves are convenient for subsequent baking, fermentation and other processes, which helps to improve the overall utilization efficiency of raw materials, reduce production costs, and improve production efficiency.

[0066] The leaf threshing, re-baking and impurity removal device provided by the utility model, see Figure 1 、 Figure 5 and Figure 6 The air separation mechanism 2 includes an air inlet pipe 21 and a diverter plate 22. The diverter plate 22 is provided with a plurality of ventilation holes 22.1. The air inlet pipe 21 is passed through the feed port 11 and one end of the air inlet pipe 21 located in the inner cavity of the working box 1 is connected to the diverter plate 22. The end of the air inlet pipe 21 located outside the working box 1 is connected to an external blower. Furthermore, too many ventilation holes 22.1 may cause the airflow to concentrate near certain areas and become sparse in other areas. Therefore, an appropriate number of ventilation holes 22.1 can help maintain a uniform distribution of airflow. The number of ventilation holes 22.1 is 75 to 225, preferably 150. Figure 5 and Figure 6 The cross-sectional shape of the ventilation hole 22.1 is selected from any one of circular, square or elliptical, preferably circular. The circular ventilation hole 22.1 can reduce edge effects and flow separation, making the airflow more stable. If the cross-sectional shape of the ventilation hole 22.1 is circular, the diameter of the ventilation hole 22.1 is 1.5 to 3.5 cm, preferably 2.5 cm. In one feasible embodiment, refer to Figure 5 and Figure 6 The ventilation holes 22.1 are evenly arranged in a matrix, and the evenly arranged matrix can effectively balance the airflow. The number of rows of the matrix is 15 to 25, preferably 20, and the number of columns of the matrix is 5 to 10, preferably 7.

[0067] The leaf threshing, re-baking and impurity removal device provided by the utility model, see Figure 2 The grabbing mechanism 3 includes a support rod 31 and a first driving member 32 disposed between the side walls of the two working boxes 1 adjacent to the air separation mechanism 2, and a movable box 4 connected to the drive shaft of the first driving member 32. The movable box 4 is provided with a support rod through hole 41, which is slidably connected to the support rod 31. For illustration, the first driving member 32 drives the movable box 4 to move along the extension direction of the support rod 31, while the support rod 31 can provide guidance and support force for the movable box 4 during movement. Preferably, a support rod 31 is provided on each side of the first driving member 32. Figure 3 , a second driving member 42 and a manipulator 43 connected to the driving shaft of the second driving member 42 are provided in the inner cavity of the moving box 4, and a through slot 44 is also provided at the bottom of the moving box 4. The working end of the manipulator 43 passes through the through slot 44 and is located outside the through slot 44. The working end of the manipulator 43 can be understood as the working axis in the multi-axis robotic arm that is actually responsible for grabbing tobacco leaves. For illustration, the second driving member 42 drives the manipulator 43 to move along the length direction of the moving box 4. Generally speaking, the driving direction of the first driving member 32 and the driving direction of the second driving member 42 are relatively perpendicular to each other on the same horizontal plane. The first driving member 32 and the second driving member 42 can be independently selected from any one of a stepper motor, a DC reduction motor or a servo motor, preferably a servo motor with a ball screw. Generally speaking, the length of the moving box 4 can span the first collecting box 91, the tobacco collection box 92 and the second collection box 93 to ensure that the manipulator 43 can grab the tobacco leaves and impurities in these three boxes. For further information, please refer to Figure 2A grabbing mechanism 3 is provided above the first collection box 91 and above the second collection box 93. The grabbing mechanism 3 corresponding to the first collection box 91 is the first grabbing mechanism 3, and the grabbing mechanism 3 corresponding to the second collection box 93 is the second grabbing mechanism 3. Generally speaking, the length of the movable box 4 in the first grabbing mechanism 3 can span the first collection box 91 and the tobacco collection box 92, and the length of the movable box 4 in the second grabbing mechanism 3 can span the second collection box 93 and the tobacco collection box 92. As a supplementary explanation, the manipulator 43 is preferably a small-range manipulator, such as Z-Arm 2442 / XX42 or Z-Arm 2442B / XX42B. Although a large-range manipulator can span the first collection box 91, the tobacco collection box 92 and the second collection box 93 solely by its own range, the large-range manipulator is heavy on the one hand, which increases the load burden of the mobile box 4. On the other hand, the large-range manipulator shakes more severely during grasping and lacks stability. However, for lighter objects such as tobacco leaves and impurities, a small-range manipulator has sufficient gripping force for grasping. Therefore, the manipulator 43 in the present invention is preferably a small-range manipulator, which can reduce the load burden of the mobile box 4 while improving the grasping stability.

[0068] The leaf threshing, re-baking and impurity removal device provided by the utility model, see Figure 2 The side wall of the working box 1 where the gripping mechanism 3 is located is further provided with a box body entrance and exit 13, which is provided with a box door 13.1. The bottom of the inner cavity of the working box 1 is provided with multiple slide rails 14. The bottoms of the first collection box 91, the tobacco collection box 92, and the second collection box 93 are all provided with sliders 15, and the corresponding sliders 15 are slidably connected to the slide rails 14. In addition, the box door 13.1 is selected from any one of a casement door, a sliding door, or a folding door. Preferably, the box door 13.1 is a sliding door and is connected to the box body entrance and exit 13 via a pin. When the impurity removal work is completed, the operator can open the box door 13.1 on the box body inlet and outlet 13, pull the first collection box 91, the tobacco collection box 92 and the second collection box 93 out of the working box 1, and dump the impurities in the first collection box 91 and the second collection box 93, and at the same time recover the tobacco in the tobacco collection box 92, and then push the first collection box 91, the tobacco collection box 92 and the second collection box 93 back into the working box 1 along the slide rail 14.

[0069] The leaf threshing, re-baking and impurity removal device provided by the utility model, see Figure 2 and Figure 4 A filter plate groove 16 is provided on the side wall of the working box 1 corresponding to the air separation mechanism 2, and a filter plate 5 is provided in the filter plate groove 16. Figure 2 and Figure 4The side wall of the filter plate groove 16 is provided with a fixing hole 16.1, and the filter plate 5 is provided with a fixing groove 51 corresponding to the fixing hole 16.1. The filter plate groove 16 is connected to the filter plate 5 through the fixing member 6. Figure 4 The fixing member 6 includes a fixing rod 61 slidably connected to the fixing member through hole 16.1 and the fixing groove 51. A handle 62 is provided on the top of the fixing rod 61, and an annular stop 63 is provided on the portion of the fixing rod 61 near the fixing groove 51. The fixing member 6 also includes a return spring 64, which is disposed in the fixing member through hole 16.1 and surrounds the fixing rod 61. For illustration, the filter plate groove 16 and the filter plate 5 are of approximately the same size, so that the filter plate 5 can be first inserted into the filter plate groove 16 before being connected to the filter plate groove 16 by the fixing member 6, thereby improving the installation strength of the filter plate groove 16 and the filter plate 5. To remove the filter plate 5, hold the handle 62 and pull the fixing rod 61 outward, pulling the bottom of the fixing rod 61 from the fixing groove 51 into the fixing member through hole 16.1, thereby disconnecting the filter plate 5 from the filter plate groove 16. Then, maintain the tension and remove the filter plate 5. After the filter plate 5 is removed, release the tension. When installing the filter plate 5, first grasp the handle 62 and pull the fixing rod 61 outward, pulling the bottom of the fixing rod 61 into the fixing hole 16.1. Then, maintain the tension and snap the filter plate 5 into the filter groove. Since the annular block 63 will press against the return spring 64 during the process of pulling the fixing rod 61 outward, and the return spring 64 will compress, after the filter plate 5 is snapped into the filter groove, the tension can be released. The return spring 64 will release the accumulated tension, thereby pushing the annular block 63 inward. The annular block 63 will then drive the fixing rod 61 outward until the bottom of the fixing rod 61 moves into the fixing groove 51. The present utility model can remove dust from tobacco leaves by using the filter plate 5, preventing dust from falling back onto the tobacco leaf surface, making the tobacco leaves purer, thereby reducing the impact on the final product and improving the overall quality and taste of the tobacco. Moreover, after removing dust, the storage state of the tobacco leaves is more stable, which can reduce problems such as deterioration and mildew, thereby extending the shelf life of the tobacco leaves. At the same time, the fixing member 6 also makes it convenient for the staff to disassemble and clean the filter plate 5, thereby improving the practicality of the device.

[0070] The leaf threshing, re-baking and impurity removal device provided by the utility model, see Figure 2 The side wall of the working box 1 where the grabbing mechanism 3 is located is further provided with a baffle (17), and the angle between the baffle 17 and the corresponding side wall of the working box 1 is 30-60 degrees, preferably 45 degrees. The baffle 17 is located below the sorting mechanism and above the grabbing mechanism 3.

[0071] Example 2

[0072] A leaf threshing and redrying impurity removal system includes the leaf threshing and redrying impurity removal device as described in Example 1. It also includes an image recognition mechanism 7, which is arranged on the inner wall of the working box 1 and is suitable for identifying tobacco and impurities in the first collection box 91, the tobacco collection box 92 and the second collection box 93. In a feasible embodiment, refer to Figure 2 , equipped with two image recognition mechanisms 7, which can further expand the scope of image recognition. As an illustration, the image recognition mechanism 7 generally includes a camera and an embedded recognition unit. The camera is used to capture images of the first collection box 91, the tobacco collection box 92, and the second collection box 93. The embedded recognition unit is used to perform simple recognition of these images and forward them to the grasping mechanism 3. By adopting the image acquisition mechanism and the grasping mechanism 3, the utility model can extract color features based on the color differences of the tobacco leaves and use edge detection and texture analysis algorithms to extract the texture features of the tobacco leaves, thereby improving the efficiency of tobacco leaf recovery, reducing manual intervention, and improving the overall operating efficiency of the production line.

[0073] The leaf threshing, redrying and impurity removal system provided by the present invention also includes a host computer 8 located outside the working box 1, and the host computer 8 is connected to the air selection mechanism 2, the grabbing mechanism 3 and the image recognition mechanism 7 through circuits. As an illustration, for the data returned by the image recognition mechanism 7, the host computer 8 extracts color features based on the color differences of the tobacco leaves and uses edge detection and texture analysis algorithms to extract the texture features of the tobacco leaves, then converts the image coordinate system into a robotic arm coordinate system and sends a signal to the grabbing mechanism 3, which then grabs the tobacco leaves that have mistakenly entered the first collection box 91 and the second collection box 93 and puts them into the tobacco collection box 92. The present invention adopts comprehensive automation technology, making the entire sorting process fast and efficient, capable of processing a large amount of tobacco leaves in a shorter time, reducing the production cycle and increasing overall output. At the same time, through image acquisition and analysis technology, the system can accurately identify the specific position and state of the tobacco leaves, effectively reducing errors in the sorting process, improving product consistency and quality, and reducing dependence on manual labor, which can effectively reduce labor costs. At the same time, efficient operating procedures can reduce material waste and improve resource utilization.

[0074] This embodiment also provides a method for using the leaf threshing, redrying and impurity removal system, including at least the following steps:

[0075] Step 1) Tobacco leaves are introduced through the feed port 11, and the air separation mechanism 2 air-selects the falling tobacco leaves. Furthermore, the air generated by the blower passes through the air flow plate to form an air-selected airflow, which blows lighter dust onto the filter plate 5 for filtration. Tobacco leaves within a certain weight range fall into the tobacco collection box 92, tobacco leaves and impurities lighter than this weight range fall into the first collection box 91, and tobacco leaves and impurities heavier than this weight range fall into the second collection box 93.

[0076] Step 2) Tobacco leaves and impurities fall into the first collecting box 91 , the tobacco collecting box 92 and the second collecting box 93 . The image recognition mechanism 7 identifies the tobacco leaves and impurities in the first collecting box 91 , the tobacco collecting box 92 and the second collecting box 93 and sends the data to the host computer 8 .

[0077] Step 3) The host computer 8 processes the data and sends the relevant information to the grabbing mechanism 3. The grabbing mechanism 3 grabs the tobacco leaves in the first collection box 91 and the second collection box 93 into the tobacco collection box 92 according to the instructions, or grabs the impurities in the tobacco collection box 92 into the first collection box 91 or the second collection box 93.

[0078] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A leaf threshing, redrying and impurity removal device, characterized by: The invention comprises a working box (1), wherein a feed port (11) is provided at the top of the working box (1), and an air inlet (12) is provided in a side wall of the working box (1); a wind separation mechanism (2) is provided at the air inlet (12), and the wind separation mechanism (2) is suitable for wind separation of impurities in tobacco leaves; A gripping mechanism (3) is provided on the side wall of the working box (1) adjacent to the air separation mechanism (2), and a first collecting box (91), a tobacco leaf collecting box (92), and a second collecting box (93) arranged in sequence are provided below the gripping mechanism (3); the gripping mechanism (3) is suitable for classifying tobacco and impurities.

2. The leaf threshing, redrying and impurity removal device according to claim 1, characterized in that: The air separation mechanism (2) comprises an air inlet pipe (21) and a diverter plate (22), wherein the diverter plate (22) is provided with a plurality of ventilation holes (22.1); the air inlet pipe (21) is passed through the air inlet (12), and one end of the air inlet pipe (21) located in the inner cavity of the working box (1) is connected to the diverter plate (22).

3. The leaf threshing, redrying and impurity removal device according to claim 1, characterized in that: The grabbing mechanism (3) comprises a support rod (31) and a first driving member (32) arranged between the side walls of the two working boxes (1) adjacent to the air separation mechanism (2), and a movable box (4) connected to the driving shaft of the first driving member (32); the movable box (4) is provided with a support rod through hole (41), and the support rod through hole (41) is slidably connected to the support rod (31); A second driving member (42) and a manipulator (43) connected to a driving shaft of the second driving member (42) are provided in the inner cavity of the moving box (4); a through slot (44) is also provided at the bottom of the moving box (4), and a working end of the manipulator (43) passes through the through slot (44) and is located outside the through slot (44).

4. The leaf threshing, redrying and impurity removal device according to claim 1, characterized in that: The side wall of the working box (1) where the grabbing mechanism (3) is located is also provided with a box body inlet and outlet (13), and the box body inlet and outlet (13) is provided with a box door (13.1); a plurality of slide rails (14) are provided at the bottom of the inner cavity of the working box (1), and the bottoms of the first collecting box (91), the tobacco leaf collecting box (92) and the second collecting box (93) are all provided with sliders (15), and the corresponding sliders (15) are slidably connected to the slide rails (14).

5. The leaf threshing, redrying and impurity removal device according to claim 1 is characterized in that: A filter plate groove (16) is provided on the side wall of the working box (1) opposite to the air separation mechanism (2), and a filter plate (5) is provided in the filter plate groove (16); a fixing member through hole (16.1) is provided on the side wall of the filter plate groove (16), and a fixing groove (51) corresponding to the fixing member through hole (16.1) is provided on the filter plate (5); the filter plate groove (16) is connected to the filter plate (5) via a fixing member (6); The fixing member (6) includes a fixing rod (61) slidably connected to the fixing member through hole (16.1) and the fixing groove (51), a handle (62) is provided on the top of the fixing rod (61), and an annular stopper (63) is provided on the portion of the fixing rod (61) close to the fixing groove (51); the fixing member (6) also includes a reset spring (64), which is provided in the fixing member through hole (16.1) and surrounds the fixing rod (61).

6. The leaf threshing, redrying and impurity removal device according to claim 2, characterized in that: A baffle (17) is further provided on the side wall of the working box (1) where the grabbing mechanism (3) is located. The angle between the baffle (17) and the corresponding side wall of the working box (1) is 30 to 60 degrees. The baffle (17) is located below the air separation mechanism (2) and above the grabbing mechanism (3).

7. The leaf threshing, redrying and impurity removal device according to claim 1, characterized in that: A feeding pipe (11.1) is also provided at the feeding port (11); and / or an observation window (18) is also provided on the side wall of the working box (1) where the grabbing mechanism (3) is located.

8. The leaf threshing, redrying and impurity removal device according to claim 2, characterized in that: The number of the ventilation holes (22.1) is 75 to 225; and / or the cross-sectional shape of the ventilation holes (22.1) is selected from any one of circular, square or elliptical shapes.

9. A leaf threshing, redrying and impurity removal system, characterized by: It comprises the leaf beating, redrying and impurity removal device as described in any one of claims 1 to 7; and also comprises an image recognition mechanism (7), wherein the image recognition mechanism (7) is arranged on the inner wall of the working box (1), and the image recognition mechanism (7) is suitable for identifying tobacco and impurities in the first collection box (91), the tobacco leaf collection box (92) and the second collection box (93).

10. The leaf threshing, redrying and impurity removal system according to claim 9, characterized in that: It also includes a host computer (8) located outside the working box (1); the host computer (8) is connected to the air selection mechanism (2), the grabbing mechanism (3) and the image recognition mechanism (7) respectively through circuits.

Images