Tobacco cutting device

Abstract

The utility model relates to tobacco preparation technical field, specifically disclose tobacco cut device. The device includes fixed mechanism, loading and unloading mechanism and cutting roller, fixed mechanism includes base assembly and sets up locking assembly on base assembly, loading and unloading mechanism can move along the work direction to fixed mechanism, and pass through work position, the outside wall of loading and unloading mechanism is equipped with two locking parts, and two locking parts are about the axis of symmetry of loading and unloading mechanism and set, locking assembly selectively fixes two locking parts, makes loading and unloading mechanism locate work position, cutting roller extends along work direction and can rotate about its axis, one end of cutting roller and fixed mechanism are detachably rotatable, and the other end of cutting roller and the end of loading and unloading mechanism are detachably rotatable. The device is used to realize reliable replacement and accurate positioning of cutting roller, meets the research demand of diversified tobacco form while guaranteeing the consistency of cutting quality.

Description

Technical Field

[0001] This utility model relates to the field of tobacco preparation technology, and in particular to a tobacco cutting device. Background Technology

[0002] In the research and development of cigarette manufacturing processes, tobacco shreds, as the core raw material for tobacco products, have a decisive influence on the combustion behavior, smoke composition, and sensory quality of cigarettes due to their physical morphological characteristics. Factors such as the width, shape, and surface structure of the tobacco shreds directly affect the filling performance, burning rate, and mainstream smoke release characteristics of the cigarette, thus impacting the smoking experience and quality consistency of the final product. Therefore, in laboratory research, to simulate different process conditions or develop new tobacco products, it is often necessary to prepare tobacco shred samples with specific morphologies, such as filamentous, sheet-like, wavy, or other irregular cross-sectional structures. Such experiments require cutting equipment that not only possesses high precision and stability but also good morphological adaptability and operational flexibility.

[0003] Currently, most tobacco cutting devices used in laboratories employ a fixed cutting roller assembly structure. Their core working components are typically one or more pairs of cutting rollers with specific blade patterns. These devices achieve tobacco leaf pressing and shaping through the interlocking of the rollers. They are structurally rigid, have stable transmission, and can meet basic cutting requirements. However, due to structural limitations, the cutting rollers in existing equipment are mostly fixedly installed, typically positioned and assembled using keyways, bolts, or integral bearing seats. Replacement is complex and time-consuming. When researchers need to change cutting rollers with different blade types or spacings for different experimental requirements, they often need to disassemble multiple fasteners, adjust the alignment, and even recalibrate the roller gap. This process is not only cumbersome and requires high technical skills, but also highly susceptible to reduced cutting accuracy due to reassembly errors.

[0004] Furthermore, due to the lack of a rapid positioning and locking mechanism in existing devices, the cutting rollers are prone to skewness or axial movement during assembly and disassembly, leading to concentricity deviations between rollers. This, in turn, causes problems such as inconsistent cutting patterns, rough cuts, and even increased equipment vibration. Especially in high-throughput experimental environments that require frequent changes in cutting patterns, the applicability and efficiency of such equipment are significantly limited, making it difficult to support the rapid preparation of multiple batches and various experimental samples, thus becoming one of the bottlenecks in improving experimental research efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a tobacco cutting device to achieve reliable replacement and precise positioning of the cutting roller.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A tobacco cutting device includes a fixing mechanism, a loading and unloading mechanism, and a cutting roller. The fixing mechanism includes a base assembly and a locking assembly disposed on the base assembly. The loading and unloading mechanism can move relative to the fixing mechanism along the working direction and pass through a working position. The outer side wall of the loading and unloading mechanism is provided with two locking parts, and the two locking parts are symmetrically arranged about the axis of the loading and unloading mechanism. The locking assembly selectively fixes the two locking parts, so that the loading and unloading mechanism is positioned at the working position. The cutting roller extends along the working direction and can rotate about its own axis. One end of the cutting roller is detachably and rotatably engaged with the fixing mechanism, and the other end of the cutting roller is detachably and rotatably engaged with the end of the loading and unloading mechanism.

[0008] As an optional technical solution for tobacco cutting device, the cutting rollers are provided in two parallel arrangement, and the two cutting rollers are connected by a transmission.

[0009] As an optional technical solution for the tobacco cutting device, the cutting roller is coaxially connected to a rotating shaft, one end of the rotating shaft is coaxially fixed to a first gear, and the two first gears mesh for transmission; the other end of the rotating shaft is coaxially fixed to a second gear, and the two second gears mesh for transmission.

[0010] As an optional technical solution for the tobacco cutting device, the locking assembly includes a first movable frame and a second movable frame. The first movable frame and the second movable frame are respectively used to fix one of the locking parts. The first movable frame and the second movable frame are driven by a third gear, so that the first movable frame and the second movable frame can move closer or further away from each other to clamp or release the loading and unloading mechanism.

[0011] As an optional technical solution for the tobacco cutting device, two fixed slide rods are fixedly connected to the base assembly. The length direction of the fixed slide rods is perpendicular to the working direction. The first movable frame and the second movable frame are slidably engaged with one of the fixed slide rods. The first movable frame and the second movable frame are each elastically connected to the base assembly through a first elastic element. The first elastic element is used to drive the first movable frame and the second movable frame to move closer to each other.

[0012] As an optional technical solution for the tobacco cutting device, the base assembly has an installation port, and the loading and unloading mechanism can be detachably connected to the installation port.

[0013] As an optional technical solution for the tobacco cutting device, the cutting roller is coaxially connected to a rotating shaft; the base assembly includes a support frame and a fixed shell fixed to the support frame, the fixed shell is recessed with a fixed shell groove, a first bearing is provided in the fixed shell groove, the rotating shaft is rotatably engaged with the fixed shell through the first bearing, the loading and unloading mechanism is recessed with a moving shell groove, a second bearing is provided in the moving shell groove, and the end of the rotating shaft is detachably inserted into the inner ring of the second bearing, so that the rotating shaft is rotatably engaged with the loading and unloading mechanism through the second bearing.

[0014] As an optional technical solution for the tobacco cutting device, an arc-shaped baffle is detachably connected to the base assembly. The arc-shaped baffle is located above the cutting roller. A brush plate is provided on the inner edge of the arc-shaped baffle. The brush plate is used to clean the side surface of the cutting roller. The number of arc-shaped baffles is the same as that of the cutting rollers, and the axis of each arc-shaped baffle coincides with the axis of one of the cutting rollers.

[0015] As an optional technical solution for the tobacco cutting device, the tobacco cutting device further includes a feeding hopper, which is located above the cutting roller; the outer side of the arc-shaped baffle is provided with adsorption strips, all of which are used to adsorb the feeding hopper.

[0016] As an optional technical solution for the tobacco cutting device, the base assembly is detachably connected to a receiving box, which has an upward-opening receiving slot located below the cutting roller.

[0017] The beneficial effects of this utility model are:

[0018] This tobacco cutting device achieves rapid locking and releasing of the cutting roller in the working position through a fixing mechanism consisting of a base assembly and a locking assembly, as well as a loading and unloading mechanism that movably cooperates with the fixing mechanism. This enables modular installation of the cutting roller and constructs a modular cutting roller replacement system. After the loading and unloading mechanism moves to the working position along the working direction, the two locking parts on the loading and unloading mechanism are symmetrically fixed by the locking assembly, allowing it to be quickly, accurately, and stably positioned in the working position. This ensures that the cutting roller is evenly stressed and securely installed during operation, effectively preventing shaking or displacement during the cutting process and guaranteeing cutting quality. This design simplifies the installation and disassembly process of the cutting roller into a linear movement and locking action, ensuring the concentricity and operational stability of the cutting roller after installation. This design makes the entire disassembly and installation process of the cutting roller extremely simple and efficient, significantly shortening the time required to replace cutting rollers of different shapes, greatly improving disassembly and assembly efficiency, shortening operational preparation time, and easily meeting different experimental requirements. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of the tobacco cutting device provided in this embodiment of the utility model;

[0020] Figure 2 This is an exploded view of the fixed shell, drive shaft, first gear, rotating shaft, cutting roller and second gear provided in the embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the loading and unloading mechanism provided in an embodiment of the present utility model;

[0022] Figure 4 This is an exploded view of the support frame, arc-shaped baffle, brush plate, and rotating rod provided in this embodiment of the utility model;

[0023] Figure 5 yes Figure 4 A magnified view of part A in the image.

[0024] In the picture:

[0025] 1. Support frame; 2. Feeding hopper; 3. Receiving box; 4. Fixed shell; 5. Drive shaft; 6. First gear; 7. Rotating shaft; 8. Cutting roller; 9. Loading and unloading mechanism; 91. Connecting roller frame; 911. Limiting groove; 92. Handle; 10. Crank handle; 11. Second gear; 12. Arc-shaped baffle; 13. Brush plate; 14. Rotating rod; 15. Second elastic element; 16. Protrusion; 17. Groove; 18. Adsorption strip; 19. Mounting port; 20. Columnar groove; 21. Third gear; 22. First rack; 23. Fixed slide rod; 24. First elastic element; 25. First limiting block; 26. Pulling rod; 27. First moving frame. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical 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 utility model based on the specific circumstances.

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] like Figures 1 to 5 As shown, this embodiment provides a tobacco cutting device, including a fixing mechanism, a loading and unloading mechanism 9, and a cutting roller 8; the fixing mechanism includes a base assembly and a locking assembly disposed on the base assembly; the loading and unloading mechanism 9 can move relative to the fixing mechanism along the working direction and pass through the working position, the outer side wall of the loading and unloading mechanism 9 is provided with two locking parts, and the two locking parts are symmetrically arranged about the axis of the loading and unloading mechanism 9, the locking assembly selectively fixes the two locking parts, so that the loading and unloading mechanism 9 is positioned in the working position; the cutting roller 8 extends along the working direction and can rotate about its own axis, one end of the cutting roller 8 is detachably rotatably engaged with the fixing mechanism, and the other end of the cutting roller 8 is detachably rotatably engaged with the end of the loading and unloading mechanism 9.

[0031] This tobacco cutting device, through a fixing mechanism consisting of a base assembly and a locking assembly, and a loading and unloading mechanism 9 that movably cooperates with the fixing mechanism, achieves rapid locking and releasing of the cutting roller 8 in the working position, thereby completing the modular installation of the cutting roller 8 and constructing a modular cutting roller 8 replacement system. After the loading and unloading mechanism 9 moves to the working position along the working direction, the two locking parts on the loading and unloading mechanism 9 are symmetrically fixed by the locking assembly, which can quickly, accurately and stably position it in the working position, ensuring that the cutting roller 8 is evenly stressed and stably installed during operation, effectively preventing shaking or displacement during the cutting process, and ensuring cutting quality. The above design simplifies the installation and disassembly process of the cutting roller 8 into a linear movement and locking action, ensuring the concentricity and operational stability of the cutting roller 8 after installation. This design makes the entire disassembly and installation process of the cutting roller 8 extremely simple and efficient, significantly shortening the time required to replace different types of cutting rollers 8, greatly improving disassembly and assembly efficiency, shortening the preparation time for operation, and easily meeting different experimental needs.

[0032] In this embodiment, the tobacco cutting device is applied to research in a cigarette laboratory. This device allows for rapid replacement of the corresponding cutting roller 8 based on the desired shape of the tobacco required for the experiment. This technical solution not only significantly improves experimental efficiency but also expands its applicability.

[0033] In this embodiment, there are two cutting rollers 8 arranged side by side, and the two cutting rollers 8 are connected by a transmission.

[0034] By employing two parallel cutting rollers 8 connected by a drive system, the two rollers can rotate synchronously in opposite directions, forming a double-roller cutting structure. This structure enables efficient and uniform shearing cutting of tobacco raw materials, ensuring that the tobacco raw materials are effectively drawn and uniformly cut into shreds, improving cutting efficiency and the consistency of tobacco shred morphology, and providing a stable and reliable foundation for cutting quality in experiments. Furthermore, the double-roller design offers higher cutting efficiency and better processing capacity compared to a single-roller design.

[0035] Furthermore, the cutting roller 8 is coaxially connected to a rotating shaft 7, one end of which is coaxially fixed to a first gear 6, and the two first gears 6 mesh for transmission; the other end of the rotating shaft 7 is coaxially fixed to a second gear 11, and the two second gears 11 mesh for transmission.

[0036] By setting a first gear 6 and a second gear 11 meshing at both ends of the rotating shaft 7, a dual synchronous transmission system is formed, realizing the synchronous counter-rotation of the two rotating shafts 7. Regardless of which end of the rotating shaft 7 is on, the two cutting rollers 8 can always maintain precise synchronous alignment during installation and operation. This greatly simplifies the installation process, not only avoiding the tedious manual adjustment of synchronization after replacement and significantly improving replacement efficiency, but also fundamentally eliminating the risk of material jamming, wear, or cutting failure that may occur due to manual misalignment after replacing the cutting rollers 8. This ensures a smooth replacement process and stable cutting quality, improving the reliability and success rate of the replacement operation.

[0037] In this embodiment, the locking assembly includes a first movable frame 27 and a second movable frame. The first movable frame 27 and the second movable frame are respectively used to fix a locking part. The first movable frame 27 and the second movable frame are driven by a third gear 21, so that the first movable frame 27 and the second movable frame can move closer or further away from each other to clamp or release the loading and unloading mechanism 9.

[0038] The locking assembly employs a first moving frame 27 and a second moving frame linked by a third gear 21, enabling synchronous clamping or unlocking of the two symmetrical locking parts on the loading and unloading mechanism 9. This design ensures that the locking force is evenly distributed on both sides of the loading and unloading mechanism 9, avoiding the off-center load and stress concentration that may be caused by unilateral locking, thus improving the stability and reliability of the locking of the loading and unloading mechanism 9, while making the unlocking operation smoother and less strenuous.

[0039] Specifically, a pull rod 26 is fixedly connected to the first movable frame 27.

[0040] By pulling the lever 26, the two first moving frames 27 and the second moving frame can be controlled. The movements are precise and consistent, which greatly simplifies the operation steps, improves the efficiency and reliability of locking and unlocking actions, and ensures a balanced distribution of clamping force.

[0041] Furthermore, two fixed slide rods 23 are fixedly connected to the base assembly. The length direction of the fixed slide rods 23 is perpendicular to the working direction. The first movable frame 27 and the second movable frame are slidably engaged with one of the fixed slide rods 23, respectively. The first movable frame 27 and the second movable frame are each elastically connected to the base assembly through a first elastic member 24. The first elastic member 24 is used to drive the first movable frame 27 and the second movable frame to move closer to each other. Specifically, the first elastic member 24 is sleeved on the fixed slide rod 23.

[0042] Specifically, the first movable frame 27 is provided with a first rack 22 that meshes with the third gear 21, and the second movable frame is provided with a second rack that meshes with the third gear 21.

[0043] The fixed slide bar 23 provides precise guidance for the first and second moving frames, ensuring they can only move smoothly in a predetermined direction. This guarantees that the first and second moving frames can accurately clamp or release the locking mechanism. The first elastic element 24 provides the driving force for automatic locking. In its natural state, the elastic force drives the two moving frames closer together, automatically locking the loading and unloading mechanism 9, ensuring that the locking assembly always tends to lock the loading and unloading mechanism 9 in the working position. The operator only needs to overcome the elastic force to pull the pull rod 26 to unlock. After release, the moving frames can automatically reset and relock under the drive of the first elastic element 24, requiring no additional operation. This not only simplifies the operation steps but also provides a continuous and stable locking force, improving the convenience and efficiency of operation. It also ensures the automation and consistency of the locking action, enhancing the safety and reliability of the tobacco cutting device during operation.

[0044] In this embodiment, the base assembly has an installation port 19, and the loading and unloading mechanism 9 is detachably connected to the installation port 19.

[0045] Mounting port 19 provides a clear and standardized installation path and positioning reference for loading and unloading mechanism 9. By embedding into mounting port 19, loading and unloading mechanism 9 can quickly and accurately reach the predetermined working position and achieve radial positioning on the base assembly, ensuring rapid and accurate alignment between cutting roller 8 and drive shaft 5, simplifying alignment steps during installation, facilitating the overall disassembly and assembly of cutting roller 8, and improving the convenience, accuracy, and efficiency of replacement operations.

[0046] For example, the base assembly includes a support frame 1 and a fixed shell 4 fixed to the support frame 1. The fixed shell 4 is recessed with a fixed shell groove, and a first bearing is provided in the fixed shell groove. The rotating shaft 7 is rotatably engaged with the fixed shell 4 through the first bearing. The loading and unloading mechanism 9 is recessed with a movable shell groove, and a second bearing is provided in the movable shell groove. The end of the rotating shaft 7 is detachably inserted into the inner ring of the second bearing, so that the rotating shaft 7 is rotatably engaged with the loading and unloading mechanism 9 through the second bearing.

[0047] By installing bearings in the fixed housing 4 and the loading / unloading mechanism 9 to support the rotating shaft 7, a stable and reliable dual-support rotation system is formed, providing stable and low-friction rotational support for the cutting roller 8. The first bearing in the fixed housing 4 provides stable and reliable drive end support, ensuring the stability of power transmission; the second bearing in the loading / unloading mechanism 9 provides an auxiliary support end that can be disassembled as a whole. This split bearing housing design not only ensures that the cutting roller 8 has extremely high rotational stability and precision during operation, thereby ensuring cutting quality, but also perfectly meets the needs of modular quick disassembly and replacement. During disassembly, the rotating shaft 7 can be removed as a whole with the second bearing, and during installation, it can be quickly and accurately connected with the first bearing. The design is ingenious, highly practical, and achieves a balance between performance and convenience.

[0048] Specifically, the loading and unloading mechanism 9 includes a connecting roller frame 91 and a handle 92 fixed to the connecting roller frame 91, with a moving housing groove provided on the connecting roller frame 91. By pulling the handle 92, the operator can disengage the connecting roller frame 91 from the mounting port 19, and the rotating shaft 7 and the cutting roller 8 will also disengage from the support frame 1.

[0049] The locking part includes a limiting groove 911 recessed on the side of the connecting roller frame 91, a first limiting block 25 protruding on the first moving frame 27 that can be matched and inserted into the limiting groove 911, and a second limiting block protruding on the second moving frame that can be matched and inserted into the limiting groove 911.

[0050] In this embodiment, the inner ring of the first bearing is coaxially fixed to the drive shaft 5, the drive shaft 5 is coaxially fixed to the first gear 6, and the rotating shaft 7 is detachably coaxially connected to the drive shaft 5.

[0051] Furthermore, a drive shaft 5 passes through the fixed housing 4 and is fixedly connected to the crank handle 10. The operator can manually drive the cutting roller 8 by rotating the crank handle 10.

[0052] In this embodiment, an arc-shaped baffle 12 is detachably connected to the base assembly. The arc-shaped baffle 12 is located above the cutting roller 8. A brush plate 13 is provided on the inner edge of the arc-shaped baffle 12. The brush plate 13 is used to clean the side surface of the cutting roller 8. The number of arc-shaped baffles 12 is the same as that of the cutting roller 8, and the axis of each arc-shaped baffle 12 coincides with the axis of one cutting roller 8.

[0053] The arc-shaped baffle 12 forms a physical protective barrier, effectively preventing operators' hands or tools from accidentally touching the high-speed rotating cutting roller 8, significantly improving the safety of the tobacco cutting device. Furthermore, the arc-shaped baffle 12 prevents tobacco from scattering during cutting, keeping the working environment clean and reducing material waste. The brush plate 13 integrated into the arc-shaped baffle 12 can clean residual tobacco adhering to the surface of the cutting roller 8 in real time, avoiding material waste and the potential impact of repeated cutting on the purity of subsequent experimental samples. This ensures the purity and consistency of the tobacco cutting quality and helps maintain the cleanliness of the cutting roller 8, preserving its good cutting performance. Thus, it forms a comprehensive functional component integrating safety protection and automatic cleaning.

[0054] Specifically, a rotating rod 14 is threaded through the arc-shaped baffle 12. The length direction of the rotating rod 14 is parallel to the axis of the arc-shaped baffle 12, allowing the arc-shaped baffle 12 to rotate around the rotating rod 14. The rotating rod 14 can be used to flip the arc-shaped baffle 12 for easy maintenance operations. Both ends of the arc-shaped baffle 12 are recessed with grooves 17; the support frame 1 is recessed with two cylindrical grooves 20. The cylindrical grooves 20 are provided with a second elastic element 15 and a portion of the protrusions 16. The protrusions 16 are elastically connected to the bottom of the cylindrical grooves 20 through the second elastic element 15. The protrusions 16 are selectively inserted into the grooves 17 to fix the arc-shaped baffle 12.

[0055] In this embodiment, both the first elastic element 24 and the second elastic element 15 are extension springs.

[0056] Furthermore, the tobacco cutting device also includes a feeding hopper 2, which is located above the cutting roller 8; an adsorption strip 18 is provided on the outer side of the arc-shaped baffle 12, and all the adsorption strips 18 are used to adsorb the feeding hopper 2.

[0057] When the arc-shaped baffle 12 is flipped open for maintenance or replacement of the cutting roller 8, the adsorption strip 18 can adsorb onto the feeding hopper 2, thereby reliably fixing the arc-shaped baffle 12 in the predetermined position. This design eliminates the trouble of manually supporting the baffle, freeing the operator's hands and allowing them to focus more on maintenance or replacement operations, further improving the convenience and safety of operation.

[0058] In this embodiment, after the tobacco raw material is poured into the feeding hopper 2, the tobacco raw material will fall between the two cutting rollers 8, and the crank handle 10 is turned. The crank handle 10 drives the front drive shaft 5 to rotate, and the two first gears 6 are used to achieve synchronous reverse rotation of the two drive shafts 5. The drive shaft 5 drives the two cutting rollers 8 to rotate synchronously in opposite directions through the rotating shaft 7. After the tobacco raw material is cut into tobacco shreds by the two cutting rollers 8, it falls into the receiving box 3.

[0059] Specifically, the adsorption strip 18 is a permanent magnet, and the material of the feeding hopper 2 is iron.

[0060] In this embodiment, the base assembly is detachably connected to a receiving box 3, which has an upward-opening receiving slot located below the cutting roller 8.

[0061] By setting up the receiving box 3, the cut tobacco shreds can fall directly into the upward-facing receiving slot, facilitating the collection and transfer of the finished tobacco shreds and preventing them from scattering. The receiving box 3 features a detachable design for easy removal, weighing, or subsequent processing of the tobacco shreds. Operators can easily remove the receiving box 3 to obtain experimental samples or replace it with different receiving containers to suit different batches of experiments. It also facilitates cleaning of the receiving slot, keeping the tobacco cutting device clean and preventing cross-contamination between different experimental samples. The operation is very simple, ensuring the accuracy of experimental results and improving the efficiency of the experimental process.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tobacco cutting device, characterized in that, include: The fixing mechanism includes a base assembly and a locking assembly disposed on the base assembly; The loading and unloading mechanism (9) can move relative to the fixing mechanism along the working direction and pass through the working position. The outer side wall of the loading and unloading mechanism (9) is provided with two locking parts, and the two locking parts are symmetrically arranged about the axis of the loading and unloading mechanism (9). The locking assembly selectively fixes the two locking parts so that the loading and unloading mechanism (9) is positioned at the working position. The cutting roller (8) extends along the working direction and can rotate around its own axis. One end of the cutting roller (8) is detachably rotatably engaged with the fixing mechanism, and the other end of the cutting roller (8) is detachably rotatably engaged with the end of the loading and unloading mechanism (9).

2. The tobacco cutting device according to claim 1, characterized in that, The cutting rollers (8) are provided in two and arranged side by side, and the two cutting rollers (8) are connected by a transmission.

3. The tobacco cutting device according to claim 2, characterized in that, The cutting roller (8) is coaxially connected to a rotating shaft (7). One end of the rotating shaft (7) is coaxially fixed to a first gear (6), and the two first gears (6) mesh for transmission. The other end of the rotating shaft (7) is coaxially fixed to a second gear (11), and the two second gears (11) mesh for transmission.

4. The tobacco cutting device according to claim 1, characterized in that, The locking assembly includes a first movable frame (27) and a second movable frame. The first movable frame (27) and the second movable frame are respectively used to fix one of the locking parts. The first movable frame (27) and the second movable frame are driven by a third gear (21) so that the first movable frame (27) and the second movable frame can move closer or further away from each other to clamp or release the loading and unloading mechanism (9).

5. The tobacco cutting device according to claim 4, characterized in that, Two fixed slide rods (23) are fixedly connected to the base assembly. The length direction of the fixed slide rods (23) is perpendicular to the working direction. The first movable frame (27) and the second movable frame are slidably engaged with one of the fixed slide rods (23). The first movable frame (27) and the second movable frame are elastically connected to the base assembly through a first elastic element (24). The first elastic element (24) is used to drive the first movable frame (27) and the second movable frame to move closer to each other.

6. The tobacco cutting device according to claim 4, characterized in that, The base assembly has an installation port (19), and the loading and unloading mechanism (9) is detachably connected to the installation port (19).

7. The tobacco cutting device according to claim 1, characterized in that, The cutting roller (8) is coaxially connected to a rotating shaft (7); the base assembly includes a support frame (1) and a fixed shell (4) fixed to the support frame (1). The fixed shell (4) is recessed with a fixed shell groove. A first bearing is provided in the fixed shell groove. The rotating shaft (7) is rotatably engaged with the fixed shell (4) through the first bearing. The loading and unloading mechanism (9) is recessed with a moving shell groove. A second bearing is provided in the moving shell groove. The end of the rotating shaft (7) is detachably inserted into the inner ring of the second bearing, so that the rotating shaft (7) is rotatably engaged with the loading and unloading mechanism (9) through the second bearing.

8. The tobacco cutting device according to claim 1, characterized in that, An arc-shaped baffle (12) is detachably connected to the base assembly. The arc-shaped baffle (12) is located above the cutting roller (8). A brush plate (13) is provided on the inner edge of the arc-shaped baffle (12). The brush plate (13) is used to clean the side surface of the cutting roller (8). The number of arc-shaped baffles (12) is the same as that of the cutting roller (8), and the axis of each arc-shaped baffle (12) coincides with the axis of one of the cutting rollers (8).

9. The tobacco cutting device according to claim 8, characterized in that, The tobacco cutting device also includes a feeding hopper (2), which is located above the cutting roller (8); the outer side of the arc-shaped baffle (12) is provided with adsorption strips (18), and all of the adsorption strips (18) are used to adsorb the feeding hopper (2).

10. The tobacco cutting apparatus according to any one of claims 1-9, characterized in that, The base assembly is detachably connected to a receiving box (3), which has an upward-opening receiving slot located below the cutting roller (8).

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