Conveying device

Abstract

The application relates to a conveying device, a material distribution conveying mechanism, which is used for conveying tobacco strips and screening and separating loose tobacco leaves in the tobacco strips; the material distribution conveying mechanism comprises two corresponding mounting racks, two driving rollers are rotationally arranged between the mounting racks, a plurality of first driven rollers and second driven rollers are arranged at intervals and between the two driving rollers; the second driven roller is located between two adjacent first driven rollers; the second driven roller comprises a shaft body, a plurality of conveying wheels are arranged at intervals on the shaft body; the discharging conveying mechanism comprises a horizontal part and an inclined part, and the horizontal part is located on the side of the material distribution conveying mechanism in the direction of gravity. The application increases a group of material distribution conveying mechanisms, and simultaneously lengthens the discharging conveying mechanism to below the feeding conveying mechanism; when the tobacco strips entering the slicing device pass through the material distribution conveying mechanism, the loose tobacco leaves are screened out and directly fall from the roller shaft gap to the horizontal part, and directly enter the next process through the discharging conveying mechanism and no longer enter the slicing process.

Description

Technical Field

[0001] This application relates to the field of tobacco processing technology, and in particular to a conveying device. Background Technology

[0002] Tobacco flakes are the main raw material for cigarette production, and are tobacco products processed through a series of specific processes. Freshly picked tobacco leaves undergo initial curing to reduce moisture content to around 16%-18%, becoming virgin tobacco. After being purchased by tobacco companies, they are delivered to re-drying plants. These plants process the tobacco leaves in batches according to grade, removing stems and cutting them into square leaves approximately 5-15 cm in size. These leaves are then cured to a moisture content of 12%, becoming re-cured tobacco, or tobacco flakes. The factory combines the tobacco leaves according to the formula requirements, loosens them, heats and humidifies them to achieve a moisture content of around 18%, and adds flavorings, etc. The leaves are then cut into shreds, dried to a moisture content of 12%, cooled, and flavorings are added before being rolled into cigarettes. In addition, tobacco flakes can be used to produce tobacco extracts and flavorings, or further processed into new tobacco products such as tobacco sheets and tobacco fibers. The core objective of a tobacco flake slicing machine is to precisely cut loose or compressed tobacco flakes into tobacco blocks of uniform thickness that meet the requirements of subsequent tobacco processing.

[0003] In the relevant technology, the conveying auxiliary equipment used in the slicing process is a belt conveyor, which can ensure that all tobacco leaves are transported to the slicing machine intact and stably for processing. However, it cannot remove or separate loose tobacco leaves from non-standard tobacco packs coming from the raw material storage warehouse, which makes the slicing equipment difficult to process and affects the quality of subsequent tobacco products. Utility Model Content

[0004] Therefore, it is necessary to provide a conveying device to address the problem that the current conveying auxiliary equipment used in the slicing process is a belt conveyor, which can ensure that all tobacco leaves are transported to the slicing machine intact and stably for processing. However, it cannot remove or separate loose tobacco leaves from non-standard tobacco packs coming from the raw material storage, which causes difficulties in the slicing process and affects the quality of subsequent tobacco products.

[0005] According to one aspect of this application, a conveying device is provided for separating loose tobacco leaves from tobacco flakes, comprising: a material conveying mechanism for conveying the tobacco flakes and screening and separating the loose tobacco leaves inside the tobacco flakes; a slicing device for cutting the screened and separated tobacco flakes; and a discharge conveying mechanism for conveying the loose tobacco leaves and the cut tobacco flakes.

[0006] The material distribution and conveying mechanism includes two corresponding mounting frames, with a drive roller rotatably mounted between the mounting frames. Multiple first driven rollers and second driven rollers are also rotatably mounted on the mounting frames, all positioned on one side of the drive roller. The second driven rollers and first driven rollers are arranged alternately, with gaps between adjacent first and second driven rollers for screening the loose tobacco leaves. The second driven roller includes a shaft with multiple conveying wheels spaced apart on it. The discharge conveying mechanism includes a horizontal section and an inclined section, with the horizontal section located on the side of the material distribution and conveying mechanism facing the direction of gravity.

[0007] In one embodiment, the conveying device further includes a feeding conveying mechanism located at the feeding end of the distributing conveying mechanism; the height of the feeding conveying mechanism in the gravity direction is not lower than the height of the distributing conveying mechanism in the gravity direction.

[0008] In one embodiment, the conveying device further includes a slicing conveying mechanism located at the discharge end of the material distribution conveying mechanism; the height of the slicing conveying mechanism in the gravity direction is not higher than the height of the material distribution conveying mechanism in the gravity direction.

[0009] In one embodiment, the conveying device further includes a support frame located on the side of the slicing conveying mechanism opposite to the direction of gravity; the slicing device is mounted on the support frame.

[0010] In one embodiment, the mounting frame is equipped with a plurality of corresponding external bearings, and the driving roller and the second driven roller are both movably connected to the corresponding external bearings; the driving roller and the second driven roller are rotatably mounted on the mounting frame through the plurality of external bearings; and sprockets are mounted on the driving roller, the first driven roller and the second driven roller.

[0011] In one embodiment, the conveying device further includes a drive device, and a chain is connected between the plurality of sprockets. The output end of the drive device is connected to the drive roller. The drive device drives the plurality of drive rollers, the first driven roller, and the second driven roller to rotate synchronously through the chain.

[0012] In one embodiment, the plurality of driving rollers, the first driven roller, and the second driven roller are at the same height in the direction of gravity, the diameter of the shaft is smaller than the diameter of the driving roller and the first driven roller, and the diameter of the conveying wheel is the same as the diameter of the driving roller and the first driven roller.

[0013] In one embodiment, the distance between the axes of any two adjacent rollers in the driving roller, the first driven roller, and the second driven roller is less than the length of the tobacco sheet along the conveying direction of the material distribution and conveying mechanism.

[0014] In one embodiment, the discharge conveying mechanism further includes baffles, which are correspondingly disposed on both sides of the horizontal part and the inclined part; a partition is also disposed on the end of the horizontal part away from the inclined part.

[0015] In one embodiment, limit plates are provided on both sides of the feeding conveyor, the dispensing conveyor, and the slicing conveyor.

[0016] This application has the following beneficial effects:

[0017] This application adds a group feeding conveyor mechanism and extends the discharge conveyor mechanism to below the infeed conveyor mechanism. When the tobacco leaves entering the slicing equipment pass through the group feeding conveyor mechanism, loose tobacco leaves are screened out and fall directly from the roller gap onto the horizontal section, then directly enter the next process via the discharge conveyor mechanism without entering the slicing process. Whole tobacco leaves enter the slicing equipment for cutting via the slicing conveyor mechanism. In this application, the group feeding conveyor mechanism serves to transport the tobacco leaves and screen out loose tobacco leaves, ensuring that irregular tobacco leaves do not enter the slicing equipment and affect subsequent automatic slicing. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0019] Figure 2 This is a partial three-dimensional structural diagram of the material conveying mechanism in one embodiment of this application.

[0020] Figure 3 This is a three-dimensional structural diagram of the discharge conveying mechanism in one embodiment of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Feeding and conveying mechanism;

[0023] 2. Material conveying mechanism; 201. Drive roller; 202. First driven roller; 203. Second driven roller; 204. Sprocket; 205. Shaft; 206. Conveyor wheel; 207. Mounting frame; 208. External bearing;

[0024] 3. Slicing and conveying mechanism;

[0025] 4. Slicing equipment; 401. Support frame;

[0026] 5. Discharge conveying mechanism; 501. Horizontal section; 502. Inclined section; 503. Baffle; 504. Partition. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] See appendix Figure 1 - Appendix Figure 3 , Figure 1 The diagram shows an overall structural schematic of a conveying device according to an embodiment of this application, used for separating loose tobacco leaves from tobacco flakes. It includes a material conveying mechanism 2 for conveying tobacco flakes and screening and separating loose tobacco leaves inside the tobacco flakes; a slicing device 4 for cutting the screened and separated tobacco flakes; and a discharge conveying mechanism 5 for conveying the loose tobacco leaves and the cut tobacco flakes.

[0034] The material distribution and conveying mechanism 2 includes two corresponding mounting frames 207, with a drive roller 201 rotatably mounted between the mounting frames 207. Multiple first driven rollers 202 and second driven rollers 203 are also rotatably mounted on the mounting frames 207, with all first driven rollers 202 and second driven rollers 203 located on one side of the drive roller 201. The second driven rollers 203 and first driven rollers 202 are arranged alternately, with gaps between adjacent first driven rollers 202 and second driven rollers 203 for screening the loose tobacco leaves. The second driven roller 203 includes a shaft 205, with multiple conveying wheels 206 spaced apart on the shaft 205. The material discharge and conveying mechanism 5 includes a horizontal section 501 and an inclined section 502, with the horizontal section 501 located on the side of the material distribution and conveying mechanism 2 facing the direction of gravity.

[0035] During operation, this patent adds a sub-distribution conveyor 2 after the feeding conveyor 1 in the slicing process. The sub-distribution conveyor 2 is connected to the slicing conveyor 3, which in turn is connected to the slicing equipment 4. This application modifies the horizontal section 501 on the discharge conveyor 5, extending its tail end directly below the feeding conveyor 1. After unpacking, the tobacco flakes are conveyed to the sub-distribution conveyor 2 via the feeding conveyor 1. As the tobacco flakes are conveyed via the sub-distribution conveyor 2, loose tobacco flakes fall onto the horizontal section 501 through the gap between the drive roller 201, the first driven roller 202, and the second driven roller 203, and are directly conveyed to the next process via the discharge conveyor 5, without being sliced ​​by the slicing equipment 4. At the same time, compressed and intact tobacco flakes are conveyed to the slicing equipment 4 via the sub-distribution conveyor 2 and the slicing conveyor 3, and the tobacco flakes are evenly sliced, thus ensuring the continuity and stability of the operation of the slicing equipment 4.

[0036] See appendix Figure 1 - Appendix Figure 2 The conveying equipment also includes a feeding conveying mechanism 1, which is located at the feeding end of the distributing conveying mechanism 2; the height of the feeding conveying mechanism 1 in the gravity direction is not lower than the height of the distributing conveying mechanism 2 in the gravity direction.

[0037] In some embodiments, during the conveying process, in order to further improve the conveying efficiency and ensure that all tobacco flakes can fall from the feeding conveying mechanism 1 onto the distributing conveying mechanism 2, the height of the feeding conveying mechanism 1 in the gravity direction is not lower than the height of the distributing conveying mechanism 2 in the gravity direction, so as to avoid jamming.

[0038] In some embodiments, those skilled in the art can adjust the arrangement of the second driven roller 203 and the first driven roller 202 as needed. The specific arrangement will not be described in detail here.

[0039] See appendix Figure 1 - Appendix Figure 2 The conveying equipment also includes a slicing conveying mechanism 3, which is located at the discharge end of the material distribution conveying mechanism 2; the height of the slicing conveying mechanism 3 in the gravity direction is not higher than the height of the material distribution conveying mechanism 2 in the gravity direction.

[0040] In some embodiments, during the conveying process, in order to further improve the conveying efficiency and ensure that all the tobacco flakes fall onto the slicing conveying mechanism 3, the height of the slicing conveying mechanism 3 in the gravity direction is not higher than the height of the material distribution conveying mechanism 2 in the gravity direction, so as to avoid jamming.

[0041] See appendix Figure 1 The conveying equipment also includes a support frame 401, which is located on the side of the slicing conveying mechanism 3 away from the direction of gravity; the slicing equipment 4 is installed on the support frame 401.

[0042] In some embodiments, the slicing conveyor 3 precisely feeds the complete tobacco slices directly below the slicing device 4, ensuring the feeding posture and synchronizing with the cutting rhythm of the slicing device 4 to ensure accurate positioning of the tobacco slices. The complete tobacco slices are then conveyed to the slicing conveyor 3 via the material distribution conveyor 2, and are finally evenly sliced.

[0043] See appendix Figure 1 - Appendix Figure 2 The mounting frame 207 is equipped with a number of corresponding external bearings 208. The driving roller 201 and the second driven roller 203 are movably connected to the corresponding external bearings 208. The driving roller 201 and the second driven roller 203 are rotatably mounted on the mounting frame 207 through the multiple external bearings 208. A sprocket 204 is installed on the driving roller 201, the first driven roller 202 and the second driven roller 203.

[0044] In some embodiments, the external bearing 208 and the mounting bracket 207 structure are the core mechanical support for the stable rotation of the drive roller 201, the first driven roller 202 and the second driven roller 203. The external bearing 208 reduces friction and ensures rotation efficiency, which is the basis for the long-term stable operation of the entire material conveying mechanism 2.

[0045] See appendix Figure 1 - Appendix Figure 2 The conveying equipment also includes a drive device, and chains are connected between multiple sprockets 204. The output end of the drive device is connected to the drive roller 201. The drive device drives the drive roller 201, the first driven roller 202 and the second driven roller 203 to rotate synchronously through the chain.

[0046] In some embodiments, the drive device is typically a servo motor or a common asynchronous motor, whose output end is directly and rigidly connected to the drive roller 201 via a coupling or pulley, or indirectly connected via a belt or transmission chain. The drive device receives speed commands through a PLC control system, accurately outputs stable torque, provides a power source for the rotation of the entire material distribution and conveying mechanism 2, and can adjust the speed in real time according to the tobacco conveying rhythm.

[0047] In some embodiments, all sprockets 204 are sequentially connected by one or more closed chains to form a series transmission structure. To ensure synchronization, the number of teeth and pitch of all sprockets 204 must be exactly the same, because if the number of teeth is different, it will lead to differences in the rotational speed of the corresponding rollers. At the same time, the chain needs to be tensioned regularly to avoid transmission lag or tooth skipping caused by chain slack. All driving rollers 201, the first driven roller 202 and the second driven roller 203 rotate synchronously to achieve smooth conveying. The tobacco flakes are smoothly lifted and conveyed forward without the tobacco flakes being skewed due to differences in roller rotational speed. If the tobacco flakes are skewed, the whole tobacco flakes may get stuck in the gap or fall directly onto the discharge conveyor mechanism 5.

[0048] See appendix Figure 1 - Appendix Figure 2 The axes of the driving roller 201, the first driven roller 202, and the second driven roller 203 are at the same height in the direction of gravity. The diameter of the shaft 205 is smaller than the diameter of the driving roller 201 and the first driven roller 202. The diameter of the conveying wheel 206 is the same as the diameter of the driving roller 201 and the first driven roller 202.

[0049] In some embodiments, since the second driven roller 203 is a narrow roller shaft, it is equivalent to increasing the distance between the second driven roller 203 and the first driven rollers 202 on both sides, which is more conducive to the loose tobacco falling from between the roller shafts into the horizontal part 501 of the discharge conveying mechanism 5.

[0050] In some embodiments, the axes of the drive roller 201, the first driven roller 202, and the second driven roller 203 are at the same height in the direction of gravity, which facilitates the conveying of the flaky tobacco and prevents the flaky tobacco from tilting during the conveying process. During the conveying process, the shaft 205 does not directly contact the flaky tobacco, but abuts against the conveying wheel 206. In order to ensure the stability of the conveying process and avoid accidental vibration and up-and-down fluctuations, the diameter of the conveying wheel 206 is the same as the diameter of the drive roller 201 and the first driven roller 202.

[0051] See appendix Figure 1 - Appendix Figure 2 In the active roller 201, the first driven roller 202 and the second driven roller 203, the distance between the axes of any two adjacent rollers is less than the length of the tobacco sheet along the conveying direction of the material distribution and conveying mechanism 2.

[0052] In some embodiments, loose tobacco leaves are screened out by the material distribution and conveying mechanism 2 and fall directly onto the horizontal section 501 from the gap between the rollers. They then directly enter the next process via the discharge conveying mechanism 5 and do not enter the slicing process.

[0053] In some embodiments, the material distribution and conveying mechanism 2 consists of parallel rollers with a specific gap between them. The size of the gap can be adjusted by those skilled in the art according to the size of the tobacco flakes. When the tobacco flakes are conveyed, scattered, loose, and broken tobacco flakes, due to their small size and loose structure, will naturally fall through the gap between adjacent rollers. However, compressed, compacted, and intact tobacco flakes, because their size is larger than the roller gap, will be smoothly conveyed forward by the material distribution and conveying mechanism 2 to the slicing conveying mechanism 3 without falling off.

[0054] See appendix Figure 3 The discharge conveying mechanism 5 also includes a baffle 503, which is correspondingly arranged on both sides of the horizontal part 501 and the inclined part 502; a partition 504 is also provided on the end of the horizontal part 501 away from the inclined part 502.

[0055] In some embodiments, during operation, the horizontal section 501 is located below the feeding conveyor 1. Loose tobacco leaves inside the tobacco flakes fall precisely into the horizontal section 501, while the tobacco flakes cut by the slicing device 4 fall directly into the inclined section 502. Under the action of the horizontal section 501, the loose tobacco leaves are conveyed to the inclined section 502 and merge with the cut tobacco flakes.

[0056] In some embodiments, a baffle 503 structure is designed to prevent tobacco leaves from falling during the conveying process. A partition 504 structure is designed to prevent loose tobacco leaves falling from the material distribution conveying mechanism 2 from accidentally sliding down the discharge conveying mechanism 5.

[0057] In some embodiments, the horizontal portion 501 and the inclined portion 502 can be either separate or connected, both of which are existing technologies and will not be described in detail here. When a separate structure is used, the horizontal height of the inclined portion 502 near the horizontal portion 501 is lower than the height of the horizontal portion 501, thereby improving the conveying effect and ensuring that all loose tobacco leaves can fall from the horizontal portion 501 onto the inclined portion 502.

[0058] See appendix Figure 1 - Appendix Figure 2 Limit plates are provided on both sides of the feeding conveyor 1, the distributing conveyor 2, and the slicing conveyor 3.

[0059] In some embodiments, the unpacked tobacco flakes serve as the initial raw material, first entering the entire conveying chain via the feeding conveyor 1. The function of the feeding conveyor 1 is to receive the unpacked raw material and stably transport it to the next stage. Its conveying speed is usually matched with subsequent equipment to avoid raw material accumulation. The compressed tobacco flakes are then conveyed to the slicing conveyor 3 via the material distribution conveyor 2. The slicing conveyor 3 precisely feeds the tobacco flakes into the slicing equipment 4, where they are finally evenly sliced.

[0060] In some embodiments, in order to improve the conveying effect and prevent the tobacco leaves from accidentally falling from both sides during the overall conveying process, a corresponding limiting plate structure is designed.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A conveying device for separating loose tobacco leaves from tobacco flakes, characterized in that, The conveying equipment includes: The material conveying mechanism (2) is used to convey the tobacco leaves and to screen and separate the loose tobacco leaves inside the tobacco leaves; Slicing equipment (4) is used to cut the tobacco leaves after screening and separation; The discharge conveying mechanism (5) is used to convey loose tobacco leaves and cut tobacco flakes; The material conveying mechanism (2) includes two corresponding mounting frames (207), with a drive roller (201) rotatably mounted between the mounting frames (207). Multiple first driven rollers (202) and multiple second driven rollers (203) are also rotatably mounted on the mounting frames (207). The multiple first driven rollers (202) and multiple second driven rollers (203) are all located on one side of the drive roller (201). The second driven rollers (203) and the first driven rollers (202) are arranged alternately, and there is a gap between adjacent first driven rollers (202) and second driven rollers (203) for screening the loose tobacco leaves. The second driven roller (203) includes a shaft (205) on which a plurality of conveying wheels (206) are spaced apart; The discharge conveying mechanism (5) includes a horizontal part (501) and an inclined part (502), wherein the horizontal part (501) is located on the side of the material distributing conveying mechanism (2) facing the direction of gravity.

2. The conveying device according to claim 1, characterized in that, The conveying equipment also includes a feeding conveying mechanism (1), which is located at the feeding end of the distributing conveying mechanism (2); the height of the feeding conveying mechanism (1) in the gravity direction is not lower than the height of the distributing conveying mechanism (2) in the gravity direction.

3. The conveying device according to claim 2, characterized in that, The conveying equipment also includes a slicing conveying mechanism (3), which is located at the discharge end of the material distribution conveying mechanism (2); the height of the slicing conveying mechanism (3) in the gravity direction is not higher than the height of the material distribution conveying mechanism (2) in the gravity direction.

4. The conveying device according to claim 3, characterized in that, The conveying equipment also includes a support frame (401), which is located on the side of the slice conveying mechanism (3) away from the direction of gravity; And / or, the slicing device (4) is mounted on the support frame (401).

5. The conveying device according to any one of claims 1-4, characterized in that, The mounting frame (207) is equipped with a plurality of corresponding external bearings (208), and the driving roller (201) and the second driven roller (203) are movably connected to the corresponding external bearings (208); the driving roller (201) and the second driven roller (203) are rotatably mounted on the mounting frame (207) through the plurality of external bearings (208); A sprocket (204) is installed on the driving roller (201), the first driven roller (202), and the second driven roller (203).

6. The conveying device according to claim 5, characterized in that, The conveying device also includes a drive device, and a chain is connected between the plurality of sprockets (204). The output end of the drive device is connected to the drive roller (201). The drive device drives multiple active rollers (201), the first driven roller (202), and the second driven roller (203) to rotate synchronously via the chain.

7. The conveying device according to any one of claims 1-4, characterized in that, The multiple driving rollers (201), the first driven roller (202), and the second driven roller (203) have the same height along their axes in the direction of gravity; And / or, the diameter of the shaft (205) is smaller than the diameter of the driving roller (201) and the first driven roller (202), and the diameter of the conveying wheel (206) is the same as the diameter of the driving roller (201) and the first driven roller (202).

8. The conveying device according to any one of claims 1-4, characterized in that, In the active roller (201), the first driven roller (202) and the second driven roller (203), the distance between the axes of any two adjacent roller shafts is less than the length of the tobacco sheet along the conveying direction of the material distribution and conveying mechanism (2).

9. The conveying device according to any one of claims 1-4, characterized in that, The discharge conveying mechanism (5) also includes a baffle (503), which is correspondingly disposed on both sides of the horizontal part (501) and the inclined part (502); And / or, a partition (504) is also provided at one end of the horizontal part (501) away from the inclined part (502).

10. The conveying device according to claim 3, characterized in that, Limiting plates are provided on both sides of the feeding conveyor (1), the distributing conveyor (2), and the slicing conveyor (3).

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