Tobacco leaf winnowing apparatus and cigarette production system

Abstract

The present application relates to a kind of tobacco wind election equipment and cigarette production system, wherein, tobacco wind election equipment includes wind election device, first detection device and adjusting device, wind election device is configured to tobacco material is wind election, wind election device includes wind election device ontology (1) and fan (2), fan (2) is configured to drive air flow in wind election device ontology (1), to separate tobacco material in tobacco and sundries;First detection device is configured to detect the content of tobacco in sundries obtained after tobacco material is wind election;The adjusting device is signal connected with first detection device, adjusting device is configured to adjust the wind speed of fan (2) according to the detection result of first detection device.Cigarette production system includes the tobacco wind election equipment described above.

Description

Technical Field

[0001] This invention relates to the field of tobacco machinery technology, and in particular to a tobacco air separation device and a cigarette production system. Background Technology

[0002] Air separation equipment is a core piece of equipment in tobacco processing. Its main task is to remove impurities. It is used in multiple processing stages, including leaf and shred production. Its specific tasks include: separating clumps, stems, metals, and stones from loose, rehydrated leaves; separating clumps, stems, dry ice, and other impurities from rehydrated, expanded shreds; and using it after the shred or stem expansion equipment to separate clumps and most of the stems, thereby improving the purity of the shreds or stems and reducing environmental pollution.

[0003] In related technologies, in order to ensure the separation effect, a secondary separation box is used to perform a second flotation on the material that has been floated down. By utilizing the difference in suspension velocity of different components in the material, the lighter material is selected out, while the heavier and larger material is discharged from the outlet of the secondary separation box. However, the waste discharged after the secondary air separation is prone to having a high tobacco content and a low content of materials that need to be removed, and the removal effect of impurities, stems and other components is not good.

[0004] It should be noted that the information disclosed in the background section of this invention is intended only to enhance the understanding of the overall background of this invention, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] This invention provides a tobacco shred air separation device and a cigarette production system, which can reduce the waste of tobacco shred materials and increase the yield of tobacco shreds.

[0006] According to one aspect of the present invention, a tobacco air separation device is provided, comprising:

[0007] An air separation device is configured to perform air separation on tobacco materials. The air separation device includes an air separation device body and a fan. The fan is configured to drive air to flow within the air separation device body to separate tobacco shreds and impurities from the tobacco materials.

[0008] The first detection device is configured to detect the content of tobacco shreds in the impurities obtained after wind separation of tobacco materials; and

[0009] An adjustment device is connected to the first detection device via a signal, and the adjustment device is configured to adjust the fan speed according to the detection result of the first detection device.

[0010] In some embodiments, the air classifier body includes a discharge port for discharging tobacco shreds obtained after air classification of tobacco materials. The tobacco shred air classifier also includes a second detection device connected to the adjustment device. The second detection device is configured to detect the number of tobacco shreds adhering to the inner wall surface of the air classifier located at the discharge port. The adjustment device is configured to adjust the wind speed of the fan according to the detection result of the second detection device.

[0011] In some embodiments, the tobacco air separation device further includes a receiving plate disposed below the air separation device body, and the impurities obtained after the tobacco material is air separated are discharged onto the receiving plate through the first discharge port of the air separation device.

[0012] In some embodiments, the first detection device includes an image acquisition unit and a detection unit. The image acquisition unit is configured to acquire images of impurities on the feed plate, and the detection unit is configured to process the images of the impurities to obtain the content of tobacco shreds in the impurities.

[0013] In some embodiments, the detection unit is configured to process an image of the debris using a deep learning model to obtain the content of tobacco in the debris.

[0014] In some embodiments, the air separation device body includes a feed inlet, a discharge outlet, an air conveying pipe, and a first discharge outlet. The feed inlet is used to introduce tobacco material. The air conveying pipe is connected to the bottom of the blower. The inlet and outlet of the air conveying pipe are respectively connected to the feed inlet and the discharge outlet. The first discharge outlet is connected to the bottom of the air conveying pipe. Under the action of the blower, an upward airflow is formed in the air conveying pipe to separate the tobacco material. The tobacco shreds obtained after separation are output from the discharge outlet, and the impurities obtained after separation are discharged from the first discharge outlet.

[0015] In some embodiments, the air separation device body further includes a first air separation chamber connected between the air delivery pipe and the blower, the first air separation chamber being configured to perform air separation on the first material obtained after the tobacco material has been separated.

[0016] In some embodiments, the air separation device body further includes a loosener, a second air separation chamber, and a second discharge port. The second air separation chamber is disposed below the first air separation chamber, and the loosener is connected between the first air separation chamber and the second air separation chamber. The loosener is configured to loosen the agglomerated second material obtained after the first material is air-separated. The second air separation chamber is configured to perform air separation on the loosened second material. The second discharge port is connected to the second air separation chamber and is used to output the impurities obtained after the first material and the second material are air-separated.

[0017] In some embodiments, the air separation device body includes a discharge port and a gas-material separator. The discharge port is used to output tobacco shreds obtained after air separation of tobacco materials. The gas-material separator is used to separate tobacco shreds and gas. The gas-material separator includes an inlet communicating with the discharge port, a first outlet for discharging tobacco shreds, and a second outlet for discharging gas.

[0018] According to another aspect of the present invention, a cigarette production system is provided, including the above-described tobacco air separation equipment.

[0019] Based on the above technical solution, the present invention sets up a first detection device to detect the content of tobacco shreds in the impurities obtained after the tobacco material is air-separated, so as to realize the real-time feedback of the separation effect of the air-separation device, and sets up an adjustment device to adjust the wind speed of the fan according to the detection result of the first detection device, which can realize more precise separation and control of impurities and tobacco shreds, reduce the amount of tobacco shreds mixed in the separated impurities, optimize the sorting effect of the air-separation device, thereby reducing the waste of tobacco shreds and increasing the yield of tobacco shreds. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 A schematic diagram of one embodiment of the tobacco air separation device of the present invention is shown;

[0022] Figure 2 A schematic diagram of the structure of the air separation device body in one embodiment of the tobacco air separation equipment of the present invention is shown.

[0023] In the picture:

[0024] 1. Air classifier body; 11. Discharge port; 12. First discharge port; 13. Inlet; 14. Air conveying pipe; 15. First air classifier chamber; 16. Loosener; 17. Second air classifier chamber; 18. Second discharge port; 19. Air-material separator;

[0025] 2. Fan; 3. Second detection device; 4. Receiving plate; 5. Tobacco airlock. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0028] In some embodiments of the tobacco air separation equipment provided by the present invention, the tobacco air separation equipment includes an air separation device, a first detection device, and an adjustment device. The air separation device is configured to perform air separation on tobacco materials. (Refer to...) Figure 1 As shown, the air separation device includes an air separation device body 1 and a blower 2. The blower 2 is configured to drive air to flow within the air separation device body 1 to separate tobacco shreds and impurities from the tobacco material. A first detection device is configured to detect the content of tobacco shreds in the impurities obtained after air separation of the tobacco material. An adjustment device is signal-connected to the first detection device and is configured to adjust the wind speed of the blower 2 according to the detection result of the first detection device.

[0029] Among them, air separation mainly uses a controllable airflow as a medium to separate different components (light components and heavy components) in a material using an airflow at a certain speed. However, due to the influence of factors such as the properties of each component and the speed of the airflow, incomplete separation of components can easily occur, that is, the light components are mixed with heavy components, or the heavy components are mixed with light components.

[0030] Similarly, after wind separation of tobacco materials, some tobacco shreds may be mixed in with the separated impurities. This leads to waste of tobacco shreds and reduces the yield. Therefore, by setting up a first detection device, the content of tobacco shreds in the impurities obtained after wind separation of tobacco materials can be detected, providing real-time feedback on the separation effect of the wind separation device. By setting up an adjustment device, the wind speed of fan 2 can be adjusted according to the detection results of the first detection device, so as to achieve more precise separation and control of impurities and tobacco shreds, minimize the amount of tobacco shreds mixed in with the separated impurities, optimize the sorting effect of the wind separation device, and thus improve the yield of tobacco shreds.

[0031] In the cigarette manufacturing process, air separation of tobacco materials is a core step in the tobacco processing. This is typically achieved using single-stage or multi-stage air separation equipment to separate, drift, and flotate the tobacco materials. Specifically, after the tobacco materials enter the primary air separation equipment via a feeding mechanism, they undergo drift separation under the influence of lateral airflow. Because the components of the separated material (including leaves, shreds, clumps, stems, metals, and stones) have different densities and wind-receiving areas, they drift to different positions under the influence of lateral airflow. Therefore, the drift separation can be achieved by adjusting the lateral airflow velocity. However, drift separation is less effective for components with similar mass and density. Therefore, to further improve the separation effect, a secondary air separation equipment can be installed. This equipment uses vertical airflow to perform a second flotation on the drifted material, utilizing the difference in suspension velocity between different components to separate the lighter materials (usually leaves and shreds), while the heavier materials (clumps, stems, metals, and stones) are discharged from the outlet of the secondary air separation equipment. However, due to the influence of factors such as the properties of each component and the airflow velocity during the air separation process, the final separated material may contain a mixture of light and heavy materials. For example, light materials may contain heavy materials, which may affect the purity of the cigarette product, or heavy materials may contain light materials, resulting in waste of tobacco materials.

[0032] Therefore, the tobacco air separation equipment of the present invention can serve as a supplement to existing air separation equipment. In a cigarette production line with only a single-stage air separation device, the tobacco air separation equipment of the present invention can be placed after the existing air separation device, which is equivalent to performing another air separation on the material separated by the existing air separation device, thereby improving the purity of the final tobacco material, ensuring the purity of the cigarette product, and reducing the waste of tobacco material. In a cigarette production line with multi-stage air separation devices, the tobacco air separation equipment of the present invention can be placed between any two existing air separation devices according to actual needs, so as to obtain tobacco products with different purities in different processes, meet the production needs of different processes, or it can be placed at the end of the air separation process to ensure the purity of the cigarette product and reduce the waste of tobacco material.

[0033] In some embodiments, a computer program can be used to comprehensively control the air separation device, the first detection device, and the adjustment device to achieve coordinated operation of the above-mentioned multiple devices, improve the automation capability of the cigarette production line, not only help reduce labor costs, but also improve production efficiency, and help enhance the consistency and reliability of cigarette products.

[0034] Because tobacco shreds are lightweight, they easily adhere to the equipment walls during the air classification process, resulting in waste and affecting the yield. Therefore, referring to... Figure 2As shown, in some embodiments, the air classifier body 1 includes a discharge port 11 for discharging tobacco shreds obtained after air classification. The tobacco shred air classification device also includes a second detection device 3 connected to the adjustment device. The second detection device 3 is configured to detect the number of tobacco shreds adhering to the inner wall surface of the air classifier located at the discharge port 11. The adjustment device is configured to adjust the wind speed of the fan 2 according to the detection result of the second detection device 3.

[0035] Specifically, the wind speed of the fan 2 can be adjusted according to the specific situation of tobacco sticking to the wall. For example, if the second detection device 3 detects that tobacco sticking to the inner wall at the discharge port 11, the relevant parameters can be changed, such as appropriately increasing the wind speed of the fan 2, i.e., dynamically adjusting the wind force, so that the tobacco sticking to the wall falls off and is output from the discharge port 11 with the airflow. If there is no tobacco sticking to the inner wall, the wind speed of the fan 2 can be appropriately reduced to achieve energy saving.

[0036] refer to Figure 1 As shown, in some embodiments, the tobacco air separation device also includes a receiving plate 4 disposed below the air separation device body 1, and the impurities obtained after the tobacco material is air separated are discharged onto the receiving plate 4 through the first discharge port 12 of the air separation device.

[0037] The surface area of ​​the receiving plate 4 used to receive debris can be set to be larger so that the debris can be fully spread out, making it easier to visually display the situation of tobacco mixed in the debris.

[0038] The receiving plate 4 is not limited to a plate structure; it can be configured as a box-type or cassette-type structure. In some embodiments, the tobacco air separation equipment also includes a collection device. The receiving plate 4 can be configured to facilitate connection with the collection device so that after the image of the debris is acquired, the debris can be collected into the collection device for unified processing.

[0039] In some embodiments, the first detection device includes an image acquisition unit and a detection unit. The image acquisition unit is configured to acquire images of impurities on the feed plate 4, and the detection unit is configured to process the images of the impurities to obtain the content of tobacco shreds in the impurities.

[0040] Among them, conventional image processing methods can be used to process images of clutter, such as methods that include image transformation, image segmentation, feature extraction, and parameter filtering.

[0041] In some embodiments, the detection unit is configured to process an image of the debris using a deep learning model to obtain the content of tobacco in the debris.

[0042] Using a deep learning model can easily obtain the tobacco content in debris. By continuously improving and optimizing the deep learning model, the processing capability and efficiency of debris images can be improved, thereby increasing the accuracy of the obtained tobacco content in debris.

[0043] Specifically, the construction and optimization of this deep learning model includes at least the following steps:

[0044] Collect 100 sets of data on the removal quality of impurities of the same brand (i.e., the more tobacco shreds in the impurities, the worse the removal quality), and wind power data (e.g., wind speed, air volume, air outlet interval, etc.) of the corresponding fan 2 when the impurities of the same brand are obtained by air separation.

[0045] According to the process requirements, the rejection quality of the above 100 groups of impurities of the same brand is graded: for example, the best rejection quality is determined and its level is set as 5, and other rejection qualities are sorted in sequence according to the process standards and their levels are set as 1 to 4 (in other embodiments, other different levels can also be distinguished, such as 1 to 6, 1 to 7, 1 to 8, etc.).

[0046] Since the air volume of fan 2 directly determines the internal flow field of the air separation device body 1, and thus affects the final rejection effect, the air volume of fan 2 corresponding to the rejection quality levels 1, 2, 3, 4, and 5 of the above-mentioned debris is recorded.

[0047] Normalization is used to preprocess the above data to enhance its robustness.

[0048] Constructing a deep learning model: A convolutional neural network (CNN) is used to classify the above data. A CNN model containing multiple convolutional layers, pooling layers, and fully connected layers is constructed. Multiple convolutional layers and pooling layers are used to extract image features (i.e., the output of the convolutional layer is first flattened into a one-dimensional vector, and then two fully connected layers are used for classification).

[0049] The data were grouped in an 8:2 ratio and used as the training and testing sets for the deep learning model. The training set was used to train the deep learning model, and the model's parameters were adjusted based on its performance in identifying the quality of debris removal. The test set was then used to test the model, ensuring that the accuracy of its debris removal performance was above 99.5%, thus guaranteeing sufficient accuracy.

[0050] refer to Figure 1As shown, in some embodiments, the air separation device body 1 includes an inlet 13, an outlet 11, an air conveying pipe 14, and a first discharge port 12. The inlet 13 is used to introduce tobacco material. The air conveying pipe 14 is connected to the bottom of the blower 2. The inlet and outlet of the air conveying pipe 14 are connected to the inlet 13 and the outlet 11, respectively. The first discharge port 12 is connected to the bottom of the air conveying pipe 14. Under the action of the blower 2, an airflow from bottom to top is formed in the air conveying pipe 14 to separate the tobacco material. The tobacco shreds obtained after separation are output from the outlet 11, and the impurities obtained after separation are discharged from the first discharge port 12.

[0051] Under the action of the blower 2, an upward airflow is formed in the air delivery pipe 14 from the feed inlet 13 to the discharge outlet 11. By adjusting the intensity of this airflow, the lighter tobacco materials, such as leaf shreds and leaves, rise with the airflow, while the denser metal fragments, clumps, and other impurities (heavy materials) fall downward. The tobacco shreds output from the discharge outlet 11 can be used in subsequent tobacco-making processes, while the impurities discharged through the first discharge outlet 12 can be further recycled to avoid waste.

[0052] refer to Figure 1 As shown, in some embodiments, the air separation device body 1 further includes a first air separation chamber 15 connected between the air delivery pipe 14 and the blower 2. The first air separation chamber 15 is configured to perform air separation on the first material obtained after the tobacco material is separated.

[0053] The separation of tobacco materials inside the air conveying pipe 14 may produce some primary materials with a density between tobacco shreds and impurities, such as stems, clumps of tobacco shreds, and a mixture of leaves and stems. These primary materials cannot be directly discharged from the discharge port 11 with the airflow, nor can they fall directly to the first discharge port 12. Therefore, by setting up a first air separation chamber 15 connected between the air conveying pipe 14 and the blower 2, these primary materials can be further air-separated. By adjusting parameters such as airflow, air velocity, and airflow direction within the first air separation chamber 15, an airflow field that can effectively separate tobacco shreds and impurities in the primary materials can be obtained, thereby achieving secondary separation of tobacco materials in the air separation device.

[0054] The first material also contains a clump of material, referred to as the second material. This second material cannot be separated within the first air separation chamber 15 and will fall downwards under the influence of gravity. Therefore, referring to... Figure 1As shown, in some embodiments, the air classifier body 1 further includes a loosener 16, a second air classifier chamber 17, and a second discharge port 18. The second air classifier chamber 17 is disposed below the first air classifier chamber 15. The loosener 16 is connected between the first air classifier chamber 15 and the second air classifier chamber 17. The loosener 16 is configured to loosen the agglomerated second material obtained after the first material is air-classified. The second air classifier chamber 17 is configured to perform air classification on the loosened second material. The second discharge port 18 is connected to the second air classifier chamber 17 and is used to output the impurities obtained after the first material and the second material are air-classified.

[0055] In the above embodiment, the tobacco output through the discharge port 11 mixes with the flowing airflow, making collection inconvenient. Therefore, referring to... Figure 2 As shown, in some embodiments, the air separation device body 1 includes a discharge port 11 and a gas-material separator 19. The discharge port 11 is used to output tobacco shreds obtained after air separation of tobacco materials. The gas-material separator 19 is used to separate tobacco shreds and gas. The gas-material separator 19 includes an inlet connected to the discharge port 11, a first outlet for discharging tobacco shreds, and a second outlet for discharging gas.

[0056] In other embodiments, the tobacco air separation device also includes a tobacco airlock 5. The tobacco is discharged and collected after passing through the air-material separator 19 and the tobacco airlock 5. During the collection process, a second detection device 3 observes whether any tobacco remains inside the air-material separator 19 or the tobacco airlock 5. If tobacco is found to be stuck to the wall, relevant parameters are changed, such as dynamically adjusting the airflow of the blower 2, to remove the stuck tobacco, thereby reducing tobacco waste and alleviating the maintenance burden on the equipment.

[0057] The following describes a specific embodiment of the tobacco air separation device of the present invention:

[0058] refer to Figure 1 and Figure 2 As shown, the tobacco air separation equipment of the present invention includes an air separation device, a first detection device, a second detection device 3, a receiving plate 4, a tobacco air lock 5, and an adjustment device. The first detection device and the second detection device 3 are both signal connected to the adjustment device.

[0059] The air classifier includes an air classifier body 1 and a blower 2. A receiving plate 4 is located below the air classifier body 1. The air classifier body 1 includes a discharge port 11, a first discharge port 12, a feed port 13, an air conveying pipe 14, a first air classifier chamber 15, a loosener 16, a second air classifier chamber 17, a second discharge port 18, and an air-material separator 19.

[0060] The air conveying pipe 14 is located below the blower 2. The feed inlet 13 is connected to the lower part of the air conveying pipe 14 for introducing tobacco material. The first air separation chamber 15 is connected between the air conveying pipe 14 and the blower 2, and is connected to the discharge port 11. The first discharge port 12 is connected to the lower part of the air conveying pipe 14. Under the action of the blower 2, an upward airflow is formed in the air conveying pipe 14 to separate the tobacco material, and the first material obtained after separation is conveyed to the first air separation chamber 15. 5 is configured to perform air separation on the first material; the second air separation chamber 17 is located below the first air separation chamber 15, and the agglomerated second material obtained after the first material is air separated falls towards the second air separation chamber 17. The loosener 16 is connected between the first air separation chamber 15 and the second air separation chamber 17 to loosen the agglomerated second material. The second air separation chamber 17 is configured to perform air separation on the loosened second material. The second discharge port 18 is located below the second air separation chamber 17 and communicates with the second air separation chamber 17.

[0061] In the above process, the tobacco shreds obtained after air separation are output from the discharge port 11 to the gas separator 19. The inlet of the gas separator 19 is connected to the discharge port 11. The first outlet of the gas separator 19 is used to discharge the tobacco shreds, and the second outlet is used to discharge the gas. The impurities obtained after air separation are discharged from the first discharge port 12 and the second discharge port 18.

[0062] In this embodiment, the first detection device includes an image acquisition unit and a detection unit. During the air separation process of the tobacco material, the image acquisition unit acquires images of the debris that falls onto the receiving plate 4, the detection unit uses a deep learning model to process the images of the debris to obtain the content of tobacco shreds in the debris, and the adjustment device adjusts the wind speed of the blower 2 according to the content of tobacco shreds in the debris obtained by the detection unit; the second detection device 3 detects the amount of tobacco shreds adhering to the inner wall surface of the air separation device located at the discharge port 11, and the adjustment device adjusts the wind speed of the blower 2 according to the detection result of the second detection device 3.

[0063] Through the description of several embodiments of the tobacco shred air separation equipment of the present invention, it can be seen that the tobacco shred air separation equipment of the present invention uses a first detection device to detect the content of tobacco shreds in the impurities obtained after the tobacco material has been air-separated, and uses an adjustment device to adjust the wind speed of the fan according to the detection result of the first detection device. This enables more precise separation and control of impurities and tobacco shreds, reduces the amount of tobacco shreds mixed in the separated impurities, optimizes the sorting effect of the air separation device, thereby reducing the waste of tobacco shreds and increasing the yield of tobacco shreds. Through the coordinated operation of multiple devices such as the air separation device, the first detection device, and the adjustment device, the automation operation capability of the cigarette production line can be improved, which not only helps to reduce labor costs, but also improves production efficiency. In particular, the use of a deep learning model to obtain the content of tobacco shreds in the impurities can improve the processing capability and processing efficiency of the impurity image, thereby increasing the accuracy of the obtained content of tobacco shreds in the impurities, optimizing the adaptive control of the fan wind speed, and helping to enhance the consistency and reliability of the cigarette products.

[0064] Based on the aforementioned tobacco air separation equipment, this invention also proposes a cigarette production system, which includes the aforementioned tobacco air separation equipment. The positive technical effects of the tobacco air separation equipment in the various embodiments described above are also applicable to the cigarette production system, and will not be elaborated further here.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can still be made to some technical features without departing from the principle of the present invention, and such modifications and equivalent substitutions should all be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A tobacco shred air separation device, characterized in that, include: An air separation device is configured to perform air separation on tobacco materials. The air separation device includes an air separation device body (1) and a fan (2). The fan (2) is configured to drive air to flow within the air separation device body (1) to separate tobacco shreds and impurities from the tobacco materials. The first detection device is configured to detect the content of tobacco shreds in the impurities obtained after the tobacco material is air-separated; and An adjustment device is connected to the first detection device via a signal. The adjustment device is configured to adjust the wind speed of the fan (2) according to the detection result of the first detection device, so as to achieve more precise separation and control of tobacco shreds and impurities in the tobacco material, minimize the amount of tobacco shreds mixed in the separated impurities, optimize the sorting effect of the air separation device, and improve the yield of tobacco shreds. The air classifier body (1) includes a discharge port (11) for outputting the tobacco shreds obtained after air classification of the tobacco material. The tobacco shred air classification device also includes a second detection device (3) connected to the adjustment device. The second detection device (3) is configured to detect the number of tobacco shreds adhering to the inner wall surface of the air classifier located at the discharge port (11). The adjustment device is configured to adjust the wind speed of the fan (2) according to the detection result of the second detection device (3) after air classification.

2. The tobacco shred air separation device according to claim 1, characterized in that, It also includes a receiving plate (4) located below the body (1) of the air separation device. The impurities obtained after the tobacco material is air separated are discharged onto the receiving plate (4) through the first discharge port (12) of the air separation device.

3. The tobacco air separation equipment according to claim 2, characterized in that, The first detection device includes an image acquisition unit and a detection unit. The image acquisition unit is configured to acquire images of the debris on the receiving plate (4), and the detection unit is configured to process the images of the debris to obtain the content of tobacco in the debris.

4. The tobacco shred air separation device according to claim 3, characterized in that, The detection unit is configured to use a deep learning model to process the image of the debris to obtain the content of tobacco in the debris.

5. The tobacco shred air separation device according to claim 1, characterized in that, The air separation device body (1) includes an inlet (13), an outlet (11), an air conveying pipe (14), and a first discharge port (12). The inlet (13) is used to introduce the tobacco material. The air conveying pipe (14) is connected to the bottom of the blower (2). The inlet and outlet of the air conveying pipe (14) are connected to the inlet (13) and the outlet (11), respectively. The first discharge port (12) is connected to the bottom of the air conveying pipe (14). Under the action of the blower (2), an airflow from bottom to top is formed in the air conveying pipe (14) to separate the tobacco material. The tobacco shreds obtained after separation are output from the outlet (11), and the impurities obtained after separation are discharged from the first discharge port (12).

6. The tobacco shred air separation device according to claim 5, characterized in that, The air separation device body (1) further includes a first air separation chamber (15) connected between the air delivery pipe (14) and the blower (2), the first air separation chamber (15) being configured to perform air separation on the first material obtained after the tobacco material is separated.

7. The tobacco shred air separation device according to claim 6, characterized in that, The air separation device body (1) also includes a loosener (16), a second air separation chamber (17), and a second discharge port (18). The second air separation chamber (17) is located below the first air separation chamber (15). The loosener (16) is connected between the first air separation chamber (15) and the second air separation chamber (17). The loosener (16) is configured to loosen the agglomerated second material obtained after the first material is air separated. The second air separation chamber (17) is configured to air separate the loosened second material. The second discharge port (18) is connected to the second air separation chamber (17) and is used to output the impurities obtained after the first material and the second material are air separated.

8. The tobacco shred air separation device according to claim 1, characterized in that, The air separation device body (1) includes a discharge port (11) and a gas-material separator (19). The discharge port (11) is used to output the tobacco shreds obtained after the tobacco material is air separated. The gas-material separator (19) is used to separate the tobacco shreds and the gas. The gas-material separator (19) includes an inlet connected to the discharge port (11), a first outlet for discharging the tobacco shreds, and a second outlet for discharging the gas.

9. A cigarette production system, characterized in that, Includes the tobacco air separation equipment as described in any one of claims 1 to 8.

Images