Threshing and redrying impurity removal device, impurity removal system and impurity removal method

Abstract

The invention provides a threshing and redrying impurity removal device, an impurity removal system and an impurity removal method, 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 are 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 production cost is reduced. The production cost is reduced and the production efficiency is improved.

Description

Technical Field

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

[0002] As the first workshop in cigarette production, leaf threshing and redrying plays a vital role in the quality of tobacco raw materials. With the development of refined, large-scale and purified processing of cigarette production, tobacco companies pay more attention to the quality of tobacco raw materials, especially the purity of tobacco raw materials, which directly affects the use of cigarette formulas and the stability of brands. The purity of tobacco leaves in the leaf threshing and redrying process mainly refers to the impurities in the tobacco leaves and the stem content in the leaves. If these impurities cannot be completely removed during the tobacco leaf processing, it will affect the intrinsic quality of the cigarette products and easily cause failures in cigarette production equipment.

[0003] As for the impurities in tobacco leaves, they are usually removed by screening, but the screening impurity removal efficiency is not high, which seriously affects the working efficiency of the leaf threshing and redrying process. At the same time, a small amount of normal tobacco leaves will be mixed in the impurities after impurity removal, and 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. Summary of the invention

[0004] In order to solve the above problems and related problems, the first aspect of the present invention provides a leaf threshing, redrying and impurity removal device. The leaf threshing, redrying and impurity removal device provided by the present invention comprises a working box, a feeding port is provided at the top of the working box, and an air inlet is provided on the side wall of the working box; a wind selection mechanism is provided at the air inlet, and the wind selection mechanism is suitable for wind selection of impurities in tobacco leaves; a gripping mechanism is provided on the side wall of the working box adjacent to the wind selection mechanism, and a first collection box, a tobacco leaf collection box and a second collection box are arranged in sequence below the gripping mechanism; the gripping mechanism is suitable for classifying tobacco and impurities.

[0005] In one embodiment, the air selection 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 inserted into 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 two working box side walls 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 inlet and outlet are provided in the side wall of the working box where the grabbing mechanism is located, and a box door is provided on the box body inlet and outlet; a plurality of slide rails are provided at the bottom of the inner cavity of the working box, and slide rails are provided at the bottom of the first collecting box, the tobacco leaf collecting box and the second collecting box, and the corresponding slide rails are slidably connected to each other.

[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 member through hole is provided on the side wall of the filter plate groove, and a fixing groove corresponding to the fixing member through hole is provided on the filter plate, and the filter plate groove is connected to the filter plate via a fixing member; the fixing member includes a fixing rod slidably connected to the fixing member 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 member also includes a reset spring, which is provided in the fixing member 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 30-60°. The baffle is located below the sorting mechanism and above the grabbing mechanism.

[0010] 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 elliptical; and / or a feed pipe is also provided at the feed port; and / or an observation window is also provided on the side wall of the working box where the gripping mechanism is located.

[0011] 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.

[0012] In some possible implementations, it further includes a host computer disposed outside the working box; the host computer is connected to the air selection mechanism, the gripping mechanism and the image recognition mechanism respectively through circuits.

[0013] The third aspect of the present invention provides a method for using the leaf threshing, redrying and impurity removal system provided in the second aspect of the present invention, comprising at least the following steps:

[0014] Step 1) tobacco leaves are introduced from the feed inlet, and the air selection mechanism air selects the falling tobacco leaves;

[0015] Step 2) tobacco leaves and impurities fall into the first collection box, the tobacco collection box, and the second collection box, and the image recognition mechanism identifies the tobacco leaves and impurities in the first collection box, the tobacco collection box, and the second collection box and sends the data to the host computer;

[0016] Step 3) The host computer processes the data and sends relevant information to the grabbing mechanism, which grabs the tobacco leaves in the first collection box and the second collection box into the tobacco collection box according to the instructions, or grabs the impurities in the tobacco collection box into the first collection box or the second collection box.

[0017] The leaf threshing, re-baking and impurity removal device and system provided by the present invention have the following beneficial effects:

[0018] 1) The present invention can collect tobacco leaves into a tobacco leaf collection box and collect impurities into a first collection box and a second collection box by providing an air selection mechanism and a gripping mechanism, thereby realizing automated tobacco leaf 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.

[0019] 2) The present invention uses an image acquisition mechanism and a grasping mechanism to extract color features based on 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.

[0020] 3) The present invention can remove dust from tobacco leaves by using a filter plate, preventing dust from falling back onto the surface of tobacco leaves, making tobacco leaves purer, thereby reducing the impact on the final product and improving the overall quality and taste of tobacco. After removing the dust, the storage state of tobacco leaves is more stable, which can reduce problems such as deterioration and mildew, thereby extending the shelf life of tobacco leaves. At the same time, the fixing piece also facilitates the staff to disassemble and clean the filter plate, improving the practicality of the device.

[0021] 4) The present invention adopts comprehensive automation technology, making the entire sorting process fast and efficient, and can process a large amount of tobacco leaves in a short time, reduce the production cycle, and increase the overall output. At the same time, through image acquisition and analysis technology, the system can accurately identify the specific location and state of tobacco leaves, effectively reduce errors in the sorting process, improve product consistency and quality, and reduce dependence on manual labor, which can effectively reduce labor costs. At the same time, efficient operation procedures can reduce material waste and improve resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a cross-sectional schematic diagram of the present invention.

[0024] Figure 3 It is a partial structural schematic diagram of the grabbing mechanism of the present invention.

[0025] Figure 4 It is a schematic structural diagram of the fixing member of the present invention.

[0026] Figure 5 A schematic diagram of the structure of the diverter plate of the present invention.

[0027] Figure 6 Another structural schematic diagram of the diverter plate of the present invention.

[0028] Reference numerals

[0029] Work Box 1

[0030] Feed port 11

[0031] Feed pipe 11.1

[0032] Air Inlet 12

[0033] Box inlet and outlet 13

[0034] Door 13.1

[0035] Slide 14

[0036] Slider 15

[0037] Filter plate groove 16

[0038] Fixing hole 16.1

[0039] Baffle 17

[0040] Observation window 18

[0041] Wind selection mechanism 2

[0042] Air inlet pipe 21

[0043] Divider plate 22

[0044] Ventilation holes 22.1

[0045] Grasping mechanism 3

[0046] Support rod 31

[0047] The first driving member 32

[0048] Moving Box 4

[0049] Support rod through hole 41

[0050] The second driving member 42

[0051] Robot 43

[0052] Through slot 44

[0053] Filter plate 5

[0054] Fixed slot 51

[0055] Fixing 6

[0056] Fixed rod 61

[0057] Handle 62

[0058] Annular stopper 63

[0059] Return spring 64

[0060] Image recognition mechanism7

[0061] Host computer 8

[0062] First Collection Box 91

[0063] Tobacco collection box 92

[0064] Second collection box 93 DETAILED DESCRIPTION

[0065] 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 the field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "left side", "right side", "upper side", "lower side", "above", "below" and the like is based on the orientation or position relationship shown in the drawings, which is 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.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0068] The present invention provides a leaf threshing, re-baking and impurity removal device, referring to Figure 1 and Figure 2The leaf threshing, redrying and impurity removal device comprises a working box 1, a feeding port 11 is provided on the top of the working box 1, an air inlet 12 is provided in the side wall of the working box 1; a wind selection mechanism 2 is provided at the air inlet 12, and the wind selection mechanism 2 is suitable for wind selection of impurities in tobacco leaves; a gripping mechanism 3 is provided on the side wall of the working box 1 adjacent to the wind selection mechanism 2, and a first collection box 91, a tobacco collection box 92 and a second collection box 93 are arranged in sequence below the gripping mechanism 3; the gripping mechanism 3 is suitable for classifying tobacco and impurities. As an illustration, an observation window 18 is also provided on the side wall of the working box 1, so that the operator can observe the working process in the working box 1. 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 selection mechanism 2 blows the falling tobacco leaves, and 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, and 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. 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 by setting the air selection mechanism 2 and the grabbing mechanism 3, thereby realizing automated tobacco impurity removal, and 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.

[0069] The leaf threshing, re-baking and impurity removal device provided by the present invention is shown in FIG. Figure 1 , Figure 5 and Figure 6 The air selection 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 externally connected to a blower. Furthermore, too many ventilation holes 22.1 may cause the airflow to be concentrated near certain areas while the airflow is sparse in other areas. Therefore, an appropriate amount 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. See 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 a 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.

[0070] The leaf threshing, re-baking and impurity removal device provided by the present invention is shown in FIG. 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 moving box 4 connected to the driving shaft of the first driving member 32. The moving 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. For illustration, the first driving member 32 drives the moving box 4 to move along the extension direction of the support rod 31, and the support rod 31 can provide the moving box 4 with guidance and support force during movement. Preferably, a support rod 31 is disposed 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 robot arm that is actually responsible for grabbing tobacco leaves. As an 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 vertical 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 collection 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. Further, continue to refer to Figure 2A grabbing mechanism 3 is provided above the first collecting box 91 and above the second collecting box 93, respectively. The grabbing mechanism 3 corresponding to the first collecting box 91 is the first grabbing mechanism 3, and the grabbing mechanism 3 corresponding to the second collecting box 93 is the second grabbing mechanism 3. Generally speaking, the length of the moving box 4 in the first grabbing mechanism 3 can span the first collecting box 91 and the tobacco collecting box 92, and the length of the moving box 4 in the second grabbing mechanism 3 can span the second collecting box 93 and the tobacco collecting box 92. As a supplementary explanation, the manipulator 43 is preferably a small-range manipulator, such as Z-Arm 2442 / XX42 or Z-Arm2442B / 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 strength 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.

[0071] The leaf threshing, re-baking and impurity removal device provided by the present invention is shown in FIG. Figure 2 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 a box door 13.1 is provided on the box body inlet and outlet 13. A plurality of slide rails 14 are provided at the bottom of the inner cavity of the working box 1. The bottoms of the first collecting box 91, the tobacco 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. In addition, the box door 13.1 is selected from any one of a flat 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 inlet and outlet 13 through 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 collecting box 91, the tobacco collection box 92 and the second collecting box 93 out of the working box 1, and dump the impurities in the first collecting box 91 and the second collecting box 93, and recover the tobacco in the tobacco collection box 92, and then push the first collecting box 91, the tobacco collection box 92 and the second collecting box 93 back into the working box 1 along the slide rail 14.

[0072] The leaf threshing, re-baking and impurity removal device provided by the present invention is shown in FIG. 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 a ring block 63 is provided on the fixing rod 61 near the fixing groove 51. The fixing member 6 also includes a reset spring 64, which is arranged in the fixing member through hole 16.1 and surrounds the fixing rod 61. As an illustration, the filter plate groove 16 and the filter plate 5 are roughly 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 through the fixing member 6, which can improve the installation strength of the filter plate groove 16 and the filter plate 5. When removing the filter plate 5, hold the handle 62 and pull the fixing rod 61 outward, pull the bottom of the fixing rod 61 from the fixing groove 51 to the fixing member through hole 16.1, so that the connection between the filter plate 5 and the filter plate groove 16 is disconnected, and then maintain the pulling force and remove the filter plate 5. After the filter plate 5 is removed, the pulling force can be released. When installing the filter plate 5, first hold the handle 62 and pull the fixing rod 61 outward, pull the bottom of the fixing rod 61 into the fixing member through hole 16.1, then maintain the tension and insert the filter plate 5 into the filter groove. Since the annular block 63 will resist the reset spring 64 and compress the reset spring 64 during the process of pulling the fixing rod 61 outward, after inserting the filter plate 5 into the filter groove, you can release the tension, and the reset spring 64 will release the accumulated tension, thereby pushing the annular block 63 to move inward, and the annular block 63 will drive the fixing rod 61 to move outward until the bottom of the fixing rod 61 moves into the fixing groove 51. The present invention can remove dust from tobacco leaves by using the filter plate 5, prevent dust from falling back to the surface of the tobacco leaves, make the tobacco leaves purer, thereby reducing the impact on the final product and improving the overall quality and taste of the tobacco. And after removing the 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 facilitates the staff to disassemble and clean the filter plate 5, thereby improving the practicability of the device.

[0073] The leaf threshing, re-baking and impurity removal device provided by the present invention is shown in FIG. Figure 2 The side wall of the working box 1 where the grabbing mechanism 3 is located is also 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°, preferably 45°. The baffle 17 is located below the sorting mechanism and above the grabbing mechanism 3.

[0074] Embodiment 2

[0075] A leaf threshing, redrying and impurity removal system comprises the leaf threshing, redrying and impurity removal device as described in the first embodiment. It also comprises 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 , two image recognition mechanisms 7 are provided, 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 collect images of the first collection box 91, the tobacco collection box 92 and the second collection box 93, and the embedded recognition unit is used to simply recognize these images and forward them to the grasping mechanism 3. By adopting the image acquisition mechanism and the grasping mechanism 3, the present invention can extract color features according to the color difference of tobacco leaves and use edge detection and texture analysis algorithms to extract the texture features of tobacco leaves, thereby improving the efficiency of tobacco leaf recovery, reducing manual intervention, and improving the overall operation efficiency of the production line.

[0076] The leaf threshing, redrying and impurity removal system provided by the present invention also includes a host computer 8 arranged 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 transmitted back by the image recognition mechanism 7, the host computer 8 extracts color features according to the color difference of the tobacco leaves and uses edge detection and texture analysis algorithms to extract the texture features of the tobacco leaves, and then converts the image coordinate system into the robot arm coordinate system, and sends a signal to the grabbing mechanism 3, and the grabbing mechanism 3 grabs the tobacco leaves that have mistakenly entered the first collection box 91 and the second collection box 93 into the tobacco collection box 92. The present invention adopts comprehensive automation technology, so that the entire sorting process becomes fast and efficient, and can process a large number of tobacco leaves in a shorter time, reduce the production cycle, and increase the 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 reduce errors in the sorting process, improve the consistency and quality of the products, and reduce the 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.

[0077] This embodiment also provides a method for using the leaf threshing, redrying and impurity removal system, including at least the following steps:

[0078] Step 1) Tobacco leaves are introduced from the feed port 11, and the air selection mechanism 2 air selects the falling tobacco leaves. Furthermore, the wind generated by the blower forms an air selection airflow after passing through the air flow plate, and the lighter dust will be blown to the filter plate 5 by the air selection airflow for filtration; 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.

[0079] Step 2) The tobacco leaves and impurities fall into the first collecting box 91 , the tobacco collecting box 92 and the second collecting box 93 , and 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 .

[0080] Step 3) The host computer 8 processes the data and sends 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.

[0081] 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 substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A leaf threshing, redrying and impurity removal device, characterized in that: 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 selection mechanism (2) is provided at the air inlet (12), and the wind selection mechanism (2) is suitable for wind selection 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); 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 is characterized in that: The air selection 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 is 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 moving box (4) connected to the driving shaft of the first driving member (32); the moving 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 the 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 is 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 a box door (13.1) is provided on the box body inlet and outlet (13); 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 slide blocks (15), and the corresponding slide blocks (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 selection 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) comprises 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 part of the fixing rod (61) close to the fixing groove (51); the fixing member (6) further comprises a reset spring (64), and the reset spring (64) 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 is characterized in that: A baffle (17) is also 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 selection mechanism (2) and above the grabbing mechanism (3).

7. The leaf threshing, redrying and impurity removal device according to any one of claims 1 to 5, characterized in that: The number of the ventilation holes (22.1) is 75 to 225; And / or, the cross-sectional shape of the ventilation hole (22.1) is selected from any one of circular, square or elliptical; And / or, a feed pipe (11.1) is also provided at the feed inlet (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. 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 collecting box (91), the tobacco leaf collecting box (92) and the second collecting box (93).

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

10. A method for using the leaf threshing, redrying and impurity removal system according to any one of claims 8 or 9, characterized in that: At least the following steps are included: Step 1) tobacco leaves are introduced from the feed port (11), and the air selection mechanism (2) air selects the falling tobacco leaves; Step 2) tobacco leaves and impurities fall into the first collection box (91), the tobacco collection box (92) and the second collection box (93), and the image recognition mechanism (7) recognizes the tobacco leaves and impurities in the first collection box (91), the tobacco collection box (92) and the second collection box (93) and sends the data to the host computer (8); Step 3) The host computer (8) processes the data and sends 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).

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