A stem-separating device and a tobacco leaf processing apparatus

Abstract

This application provides a stem and shred separation device and tobacco processing equipment, relating to the field of tobacco processing technology. The stem and shred separation device includes a dispersion component and a conveying component. The dispersion component includes a housing with an inlet and an outlet communicating with the outside; a dispersion chamber is formed inside the housing, and a dispersion element is installed inside the dispersion chamber. The inlet and outlet are both connected to the dispersion chamber and are respectively located on both sides of the dispersion element. The conveying component includes at least two conveyor belts, one end of which is located at the outlet; the two conveyor belts are connected to each other, and an air separator is provided between the two conveyor belts; a vibrating element is provided on the conveyor belts. The stem and shred separation device of this application disperses and loosens the tobacco stems and shreds and separates them through vibration before separation begins. The tobacco stems and shreds do not clump together during conveying, and the air separator completely separates most of the tobacco stems and shreds, resulting in higher separation efficiency and better separation effect.

Description

Technical Field

[0001] This application relates to the field of tobacco processing technology, and more specifically, to a stem-separation device and tobacco processing equipment. Background Technology

[0002] During tobacco processing, stems and shredded tobacco are often mixed together, especially in the threshing and shredding stages or the reprocessing of stems and shreds. This often results in complex formations such as clumps of stems and shreds, adhered stems and shreds containing stems. Stems and shreds are generally composed of coarse fibrous tissue, are strong, hard, and dark in color, and differ significantly in appearance and physical properties from the soft and easily curled shredded tobacco. If stems and shreds are not effectively removed, it not only affects the consistency of the tobacco's appearance but also causes quality problems such as uneven combustion and poor taste in cigarettes. Therefore, the identification and separation of stems and shreds is a crucial aspect of tobacco processing quality control.

[0003] In related technologies, tobacco stem separation equipment typically improves separation efficiency by using airflow to blow away the tobacco stems hanging on the separation plate through an exhaust port at the top of the separation plate, allowing them to participate in the separation process again. However, this method mainly focuses on improving the problem of tobacco stem adhesion at the top of the separation plate and does not optimize the source of the cigarette material before it enters the separation process. As a result, the tobacco shreds tend to clump together during the conveying process, leading to low subsequent separation efficiency and poor separation effect. Utility Model Content

[0004] In order to at least address some of the deficiencies mentioned in the related technologies, this application provides a stem separation device and tobacco processing equipment.

[0005] To achieve the above objectives, this application provides a stem-and-shred separation device for separating tobacco stems and shreds during tobacco processing. The stem-and-shred separation device includes a dispersing component and a conveying component. The dispersing component includes a housing with an inlet and an outlet communicating with the outside; a dispersing chamber is formed inside the housing, and a dispersing element is installed within the dispersing chamber; the inlet and the outlet are both connected to the dispersing chamber and are respectively located on opposite sides of the dispersing element. The conveying component includes at least two conveyor belts, one end of which is located at the outlet; the two conveyor belts are in material communication, and an air separator is provided between the two conveyor belts; a vibrating element is provided on the conveyor belts.

[0006] Furthermore, the inner wall of the dispersion chamber is inverted conical in shape, and the inner wall of the dispersion chamber is provided with sparse teeth. The dispersion element is configured as a roller, and the roller is rotatably installed in the dispersion chamber to guide the tobacco stems and tobacco shreds to slide down the inner wall of the dispersion chamber.

[0007] Furthermore, the roller is provided with comb-like protrusions, and the roller can engage with the sparse teeth on the inner wall of the dispersion cavity.

[0008] Furthermore, the stem and shred separation device includes a frame, the conveyor belt is mounted on the frame, and one of the conveyor belts is located between the dispersion chamber and the air separator to deliver the tobacco stems and shreds delivered from the dispersion chamber to the air separator.

[0009] Furthermore, a conveyor belt is disposed on the side of the air separator away from the dispersion chamber, one end of the conveyor belt is disposed at the outlet of the air separator, and the end of the conveyor belt away from the air separator extends to the storage area.

[0010] Furthermore, the vibrating element is disposed between the conveyor belt and the frame. The vibrating element includes a fixed part and a vibrating part. The fixed part is mounted on the frame, and the vibrating part is mounted on the fixed part and abuts against the conveyor belt, for driving the conveyor belt to vibrate in a direction perpendicular to the conveying direction.

[0011] Furthermore, the frame is provided with steps, and the conveyor belt, the housing, and the air separator are all set on different steps, so that the housing, the conveyor belt, the air separator, and another conveyor belt are arranged sequentially in the vertical direction from high to low.

[0012] Furthermore, the stem and shred separation device includes a vision inspection component, which comprises a processor and a detection head, the detection head being data-connected to the processor. The detection head is vertically positioned above the conveyor belt and is used to detect the separation of tobacco stems and shreds on the conveyor belt.

[0013] Furthermore, at least one detection head is provided directly above each of the conveyor belts, and each detection head is data connected to the processor.

[0014] This application also provides a tobacco processing device, including a tobacco pretreatment device and a stem-and-shred separation device as described in any of the above embodiments. After the tobacco pretreatment device processes the tobacco leaves, the leaves are transported to the stem-and-shred separation device for separation of tobacco stems and shreds.

[0015] Through the above technical solution, when separating tobacco stems and shreds using the stem-shred separation device of this application, the pre-treated tobacco stems and shreds are fed into the dispersion chamber from the feeding port of the shell. The dispersion components within the dispersion chamber break up the clumps of tobacco stems and shreds, making the originally tightly tangled material loose and fluffy. The loosened tobacco stems and shreds then fall onto the conveyor belt. During the conveying process, the conveyor belt is vibrated by a vibrating component, further dispersing the tobacco stems and shreds until they are conveyed to the air separator. The dispersed tobacco stems and shreds are then air-separated, completely separating them. The tobacco stems fall from below the air separator onto the conveyor belt and are sent to the next process stage. During the conveying process, the conveyor belt continues to vibrate, screening and separating any small amount of shredded tobacco mixed with the tobacco stems, which is then separated by the operator.

[0016] The stem and shred separation device of this application disperses and loosens the tobacco stems and shreds through vibration before separation begins. The tobacco stems and shreds will not clump together during the conveying process. The wind separator ensures that most of the tobacco stems and shreds are completely separated, resulting in higher separation efficiency and better separation effect.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the filament separation device provided in the embodiments of this application from one perspective; Figure 2 This is a schematic diagram of the structure of the housing provided in an embodiment of this application.

[0020] icon: 100-Dispersion component; 110-Housing; 111-Inlet; 112-Outlet; 113-Drive component; 114-Toothed teeth; 120-Roller; 200-Conveying component; 210-Conveyor belt; 220-Vibrating component; 230-Air separator; 300-Vision inspection component; 310-Processor; 320-Inspection head; 400-Frame. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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 limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] This embodiment provides a stem and shred separation device to solve the problem in related technologies that tobacco stems and shreds are prone to clumping together during transportation, resulting in low subsequent separation efficiency and poor separation effect.

[0025] Please see Figure 1 , Figure 2 This embodiment provides a stem and shred separation device for separating tobacco stems and shreds during tobacco processing. The stem and shred separation device includes a dispersing component 100 and a conveying component 200. The dispersing component 100 includes a housing 110, with an inlet 111 and an outlet 112 communicating with the outside. A dispersing chamber is formed inside the housing 110, and a dispersing element is installed inside the dispersing chamber. The inlet 111 and the outlet 112 are both connected to the dispersing chamber and are respectively located on both sides of the dispersing element. The conveying component 200 includes at least two conveyor belts 210, one end of which is located at the outlet 112. The two conveyor belts 210 are connected in material communication, and an air separator 230 is provided between the two conveyor belts 210. A vibrating element 220 is provided on the conveyor belts 210.

[0026] Specifically, when using the stem and shred separation device of this embodiment, the pre-treated tobacco stems and shreds are sent to the dispersion component 100 and fed into the dispersion chamber inside the housing 110 through the feed inlet 111. In the dispersion chamber, the dispersion component disperses the tobacco stems and shreds, and after the tobacco stems and shreds are rolled and pressed into a loose and fluffy state, the tobacco stems and shreds fall from the discharge outlet 112 onto the conveyor belt 210.

[0027] Conveyor belt 210 transports the tobacco stems and shreds falling from discharge port 112 towards air separator 230. During the transport process, vibrator 220 continuously vibrates conveyor belt 210, causing the loose tobacco stems and shreds on conveyor belt 210 to separate from each other and prevent them from tangling. After conveyor belt 210 delivers the separated tobacco stems and shreds to air separator 230, air separator 230 separates the lighter shreds from the top, while the heavier tobacco stems fall from the bottom onto the next conveyor belt 210, which then transports the tobacco stems to the next process stage.

[0028] The tobacco stems that have undergone air separation may still contain a small amount of tobacco shreds. During the conveying process of the conveyor belt 210, the vibrating element 220 continues to vibrate the conveyor belt 210 to further separate the small amount of tobacco shreds mixed in with the tobacco stems that have undergone air separation.

[0029] In this embodiment, the tobacco stem and shred separation device loosens and vibrates the tobacco stems and shreds during the conveying process before separation, so that the tobacco stems and shreds are separated from each other and no longer tangled together, thereby improving the efficiency of subsequent separation operations and improving the separation effect.

[0030] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, the inner wall of the dispersion chamber is inverted conical in shape, and serrated teeth 114 are provided on the inner wall. The dispersion component is a roller 120, which is rotatably installed inside the dispersion chamber to guide the tobacco stems and shreds to slide down the inner wall of the dispersion chamber. After the mixture of tobacco stems and shreds enters the dispersion chamber, if the chamber is cylindrical or wider at the top than at the bottom, it is easy to accumulate and block at the outlet, and the material will arch above the outlet and cannot fall. The inverted conical inner wall uses gravity and geometry to actively guide the dispersed material to converge towards the discharge port 112 at the bottom center. The inclined surface design has no horizontal or reverse steps, so the material is not easy to accumulate on the wall surface, ensuring continuous and stable material flow. The inclined surface also increases the component force of the material sliding down, accelerating the flow rate.

[0031] The dispersing component is the core of the active dispersing mechanism, while the serrated teeth 114 on the inner wall provide auxiliary passive dispersing. When the roller 120 squeezes or pushes the material towards the inner wall, the material scrapes and collides with the serrated teeth 114. The serrated teeth 114 can penetrate into the material clump, tearing apart the tangled tobacco shreds and separating the sticky stems. At the same time, the combination of the dispersing component's rolling pressure on the material and the combing action of the serrated teeth 114 forms a composite dispersing mechanism of combing and grinding, which is more effective than rolling pressure or combing alone. Furthermore, the serrated teeth 114 cover the entire inner wall of the dispersing chamber, so that the dispersing effect is distributed throughout the entire chamber, not just limited to the vicinity of the roller 120, resulting in more uniform and thorough dispersing.

[0032] Furthermore, the material enters the dispersion chamber through the feed inlet 111; the rotating dispersing element applies pressure and shear force to the material, performing initial dispersing and rolling; the material acted upon by the dispersing element is pushed against the inverted conical inner wall, colliding and scraping against the sparse teeth 114, undergoing secondary dispersing and combing; the dispersed material, guided by gravity and the inverted conical slope, smoothly slides down between the sparse teeth 114; during the sliding process, friction and collision still occur between the materials and between the materials and the sparse teeth 114, achieving continuous loosening; the loose and fluffy material is evenly discharged from the bottom discharge outlet 112. In this embodiment, the dispersing process and the conveying and sliding process are spatially integrated, resulting in a compact and efficient process. The movement of the material within the chamber is all used for dispersing purposes, resulting in high energy utilization.

[0033] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, the roller 120 is provided with comb-like protrusions, which can engage with the sparse teeth 114 on the inner wall of the dispersion chamber. When the roller 120 rotates, the comb-like protrusions and the sparse teeth 114 fixed on the inner wall of the chamber act like two interlocking combs, generating shearing force instead of extrusion force. Traditional roller pressing mainly relies on pressure to deform and break the material, which has limited effect on tough, tightly wrapped tobacco clumps or sticky stems. However, the tooth engagement generates a strong shearing force, which can directly cut the fiber connections like scissors. For intertwined and rolled tobacco, the separation efficiency of shearing is much higher than that of simple rolling or combing. For stem clumps that are stuck together due to moisture or processing, the shearing force can also forcibly tear the adhesion interface, achieving effective separation.

[0034] The roller 120 and the comb-like teeth on its inner wall cover the entire contact surface, forming a dense shearing network. When the material passes through this area, it is subjected to multi-point, continuous shearing action, which quickly and uniformly breaks large pieces of material into smaller units, ensuring that the discharged material is extremely loose and fluffy, with almost no large clumps or entanglements. Even if a small amount of material is not directly crushed by the roller 120, it will be sheared by the gaps between the teeth 114 and the protrusions during its slide.

[0035] Furthermore, the rotation and raised structure of the roller 120, like a screw or spiral conveyor, actively pushes the material towards the center and bottom of the dispersion chamber, accelerating material flow. The powerful shearing and pushing action instantly processes the incoming material, preventing it from accumulating and causing blockages near the inlet 111 or in front of the roller 120. In conjunction with the above embodiment, the pushing action of the roller 120 interacts with the gravity-guided sliding action of the inverted conical inner wall, forming a highly efficient circulating structure for material conveying, dispersing, and discharging.

[0036] In this embodiment, a drive unit 113 is provided on the outside of the housing 110 to drive the roller 120 to rotate. The drive unit 113 can be arbitrarily set according to actual conditions and is not limited here. For example, the drive unit 113 includes a motor and a belt. A drive wheel is provided on the output shaft of the motor, and a driven wheel is provided at the end of the roller 120 that extends outside the housing 110. The belt is sleeved between the drive wheel and the driven wheel, and the motor can drive the roller 120 to rotate through the belt.

[0037] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, the stem and shred separation device includes a frame 400, with conveyor belts 210 mounted on the frame 400. One of the conveyor belts 210 is located between the dispersion chamber and the air separator 230 to convey the tobacco stems and shreds from the dispersion chamber to the air separator 230. The frame 400 is the skeleton of the entire stem and shred separation device, providing support for the dispersion assembly 100, the conveying assembly 200, the air separator 230, etc. The vibrating element 220 on the conveyor belt 210 will generate continuous vibration during operation. Reliable support can effectively absorb and disperse this vibration energy, preventing vibration transmission from causing other components to loosen, shift, or generate noise, ensuring the smoothness and accuracy of equipment operation. Furthermore, the frame 400 can also ensure that the discharge port 112 of the dispersion chamber, the conveyor belt 210, and the inlet 111 of the air separator 230 remain precisely aligned during installation and operation, avoiding material spillage or obstructed conveying.

[0038] The dispersing component 100, conveying component 200, and air separator 230 can be installed and debugged separately as independent modules on the frame 400, simplifying the overall equipment assembly process. When a component needs repair or replacement, it can be easily disassembled and replaced on the frame 400 without disassembling the entire equipment, reducing downtime and maintenance costs. Of course, the frame 400 can be mass-produced as a standard component, and different functional modules can be flexibly combined, which is conducive to the serialization and standardization of equipment manufacturing.

[0039] The conveyor belt 210, located between the dispersion chamber and the air separator 230, continuously and evenly receives the loosened mixture of tobacco stems and shreds from the discharge port 112 of the dispersion chamber and smoothly transports it to the feeding area of ​​the air separator 230. During the conveying process, the vibrating element 220 on the conveyor belt 210 continuously operates to further prevent the material from re-aggregating or compacting during movement, ensuring that the material enters the air separator zone in the best loose state and maximizing the air separator efficiency.

[0040] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, a conveyor belt 210 is positioned on the side of the air separator 230 away from the dispersion chamber. One end of the conveyor belt 210 is located at the discharge port of the air separator 230, and the other end of the conveyor belt 210, away from the air separator 230, extends into the storage area. After the air separator 230 completes the separation, the heavier tobacco stems fall from the discharge port 112 below it. The conveyor belt 210 directly receives these tobacco stems, avoiding the tedious manual receiving and transfer processes, and realizing an automated process from separation to collection. Operators do not need to be on duty near the discharge port 112, reducing labor intensity and improving production efficiency.

[0041] If the conveyor belt 210 below the air separator 230 does not promptly remove the tobacco stems, they will accumulate at the discharge port 112. This will cause blockage of the discharge port 112, resulting in an imbalance of internal pressure within the air separator 230, severely affecting the air separation effect, and potentially even forcing the entire production line to shut down. The conveyor belt 210 continuously removes the product, ensuring that the discharge port 112 of the air separator 230 remains unobstructed, thus guaranteeing the continuous and stable operation of the entire separation process.

[0042] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, the vibrating element 220 is disposed between the conveyor belt 210 and the frame 400. The vibrating element 220 includes a fixed part and a vibrating part. The fixed part is mounted on the frame 400, and the vibrating part is mounted on the fixed part and abuts against the conveyor belt 210, for driving the conveyor belt 210 to vibrate in a direction perpendicular to the conveying direction. The vibrating part directly abuts against the support surface of the conveyor belt 210 or the idler rollers / plates, directly transmitting the vibration energy to the conveyor belt 210, reducing vibration transmission loss. This direct contact transmission method also ensures that the conveyor belt 210 can vibrate at a preset amplitude and frequency, ensuring vibration separation effect.

[0043] The fixing part of the vibrating element 220 is securely mounted on the frame 400, which serves as the overall support, providing extremely stable support for the vibration source. The vibrating element 220 generates a reaction force during operation. Being fixed to the robust frame 400 effectively resists these forces, preventing the vibrating element 220 from loosening, shifting, or being damaged. Furthermore, in this embodiment, this arrangement also helps to concentrate vibration in the conveyor belt 210 area, preventing unnecessary vibration from being transmitted to other parts of the frame 400 or connected dispersion chambers and air separators 230, thus protecting other components.

[0044] Regarding the vibration direction, vibration along the direction perpendicular to the conveying direction can effectively shake and sway the material on the conveyor belt 210, causing the intertwined tobacco shreds to separate laterally, breaking up the clumps, and also helping the material to automatically flatten in the width direction of the conveyor belt 210, preventing uneven loading.

[0045] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, steps are provided on the frame 400, and the conveyor belt 210, housing 110, and air separator 230 are all set on different steps, so that the housing 110, conveyor belt 210, air separator 230, and another conveyor belt 210 are arranged vertically from high to low. Materials have mass and will naturally move from high to low under the action of gravity. Arranged vertically, materials falling from the discharge port 112 of the dispersion chamber can directly fall into the first section of the conveyor belt 210 below by gravity. Similarly, tobacco stems falling from the discharge port 112 of the air separator 230 can also fall into the second section of the conveyor belt 210 below by gravity. This reduces the need for mechanical lifting or forced pushing, lowers the energy consumption of the conveying system, and achieves energy-saving operation. It also avoids setting up complex lifting devices or pressurized conveying mechanisms in these links, making the equipment structure simpler and more reliable.

[0046] In this embodiment, the stepped layout ensures a natural and smooth transfer path for materials from one process to the next. Gravity actively pulls the materials downwards, effectively preventing material from stagnating, accumulating, or blocking at equipment connections.

[0047] In one embodiment, exemplarily, such as Figure 1 , Figure 2As shown, the stem and shred separation device includes a vision inspection component 300, which includes a processor 310 and a detection head 320, with the detection head 320 data-connected to the processor 310. The detection head 320 is vertically positioned above the conveyor belt 210 to detect the separation of tobacco stems and shreds on the conveyor belt 210. The detection head 320 performs a non-destructive, continuous visual scan of the material on the conveyor belt 210 from above, without interfering with normal material flow and separation processes. The detection head 320 is directly data-connected to the processor 310, enabling real-time acquisition of the separation status of tobacco stems and shreds after air classification or during conveying, such as the shred content in the tobacco stems and the stem content in the shreds. Furthermore, image detection can also determine whether the material is evenly spread on the conveyor belt 210. The vision inspection component 300 of this embodiment can replace traditional methods relying on manual sampling and visual observation, providing a more objective, comprehensive, and timely detection.

[0048] The processor 310 can analyze the detected images and accurately calculate key quality indicators such as impurity content. When the separation effect is detected to exceed the preset acceptable range, such as excessively high tobacco stem content, the processor 310 can connect to other alarm-related components to issue an audible and visual alarm to remind operators to intervene in a timely manner. This ensures that the tobacco stems and tobacco shreds entering the next process meet quality standards, eliminating cigarette quality problems caused by poor separation at the source.

[0049] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, at least one detection head 320 is installed directly above each conveyor belt 210, and each detection head 320 is data-connected to the processor 310. Through the cooperation of multiple detection heads 320, the material on the conveyor belt 210 can be inspected more meticulously. For example, the detection head 320 located after the dispersion chamber and before the air separator 230 can monitor the state of the material after dispersing and vibration pretreatment in real time, detecting whether the material is sufficiently loose, or whether there are large clumps or entanglements. If the pretreatment effect is poor, the processor 310 can immediately issue an early warning. The processor 310 can even be electrically connected to the control parts of the conveyor belt 210 and the vibrating element 220 to adjust the speed or vibration intensity of the roller 120 in advance, preventing the problem from worsening and avoiding unqualified materials from entering the air separator stage.

[0050] The detection head 320, located after the air separator 230, is responsible for the final quality control. It accurately detects the amount of tobacco mixed in with the tobacco stems to confirm whether the separation results meet the standards, forming a closed loop with the source monitoring.

[0051] This embodiment also provides a tobacco processing device, including a tobacco pretreatment device and a stem-and-shred separation device as described in any of the above embodiments. After the tobacco pretreatment device processes the tobacco leaves, it is transported to the stem-and-shred separation device for separating the tobacco stems and shreds.

[0052] The tobacco processing equipment in this embodiment includes the stem-separating device in any of the above embodiments, and thus possesses all the beneficial effects of the stem-separating device, which will not be elaborated further here.

[0053] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stem-and-shred separation device for separating tobacco stems and shredded tobacco during tobacco processing, characterized in that, The stem separation device includes: A dispersion assembly (100) includes a housing (110), on which an inlet (111) and an outlet (112) communicating with the outside are provided; a dispersion cavity is provided inside the housing (110), and a dispersion component is installed inside the dispersion cavity; the inlet (111) and the outlet (112) are both communicating with the dispersion cavity and are respectively located on both sides of the dispersion component; The conveying assembly (200) includes at least two conveyor belts (210), one end of which is located at the discharge port (112); the two conveyor belts (210) are connected in material communication, and an air separator (230) is provided between the two conveyor belts (210); a vibrating element (220) is provided on the conveyor belts (210).

2. The stem-seed separation device according to claim 1, characterized in that, The inner wall of the dispersion cavity is inverted conical and has sparse teeth (114) on the inner wall. The dispersing component is configured as a roller (120), and the roller (120) is rotatably installed in the dispersing cavity to guide the tobacco stems and tobacco shreds to slide down the inner wall of the dispersing cavity.

3. The stem-seed separation device according to claim 2, characterized in that, The roller (120) is provided with comb-shaped protrusions, and the roller (120) can engage with the sparse teeth (114) on the inner wall of the dispersion cavity.

4. The stem-fiber separation device according to claim 1, characterized in that, The stem and shred separation device includes a frame (400), a conveyor belt (210) is mounted on the frame (400), and one of the conveyor belts (210) is located between the dispersion chamber and the air separator (230) to deliver the tobacco stems and shreds delivered from the dispersion chamber to the air separator (230).

5. The stem-seed separation device according to claim 4, characterized in that, A conveyor belt (210) is disposed on the side of the air separator (230) away from the dispersion chamber, one end of the conveyor belt (210) is disposed at the outlet (112) of the air separator (230), and the end of the conveyor belt (210) away from the air separator (230) extends to the storage area.

6. The stem-seed separation device according to claim 4, characterized in that, The vibrating element (220) is disposed between the conveyor belt (210) and the frame (400). The vibrating element (220) includes a fixing part and a vibrating part. The fixing part is installed on the frame (400), and the vibrating part is installed on the fixing part and abuts against the conveyor belt (210) to drive the conveyor belt (210) to vibrate in a direction perpendicular to the conveying direction.

7. The stem-seed separation device according to claim 4, characterized in that, The frame (400) is provided with steps, and the conveyor belt (210), the housing (110) and the air separator (230) are all provided on different steps, so that the housing (110), the conveyor belt (210), the air separator (230) and another conveyor belt (210) are arranged in the vertical direction from high to low.

8. The stem-seed separation device according to claim 1, characterized in that, The stalk separation device includes a visual inspection component (300), which includes a processor (310) and a detection head (320), and the detection head (320) is data connected to the processor (310). The detection head (320) is vertically positioned above the conveyor belt (210) and is used to detect the separation of tobacco stems and tobacco shreds on the conveyor belt (210).

9. The stem-seed separation device according to claim 8, characterized in that, At least one detection head (320) is provided directly above each of the conveyor belts (210), and each detection head (320) is data connected to the processor (310).

10. A tobacco leaf processing device, characterized in that, The device includes a tobacco pretreatment device and a stem-and-shred separation device as described in any one of claims 1 to 9. After the tobacco pretreatment device processes the tobacco leaves, the leaves are transported to the stem-and-shred separation device for separation of tobacco stems and shreds.

Images