Tobacco cutter
By using magnetic components and mating parts in the shredder, along with the lateral movement gap of the linkage, the problems of deformation of the protective components and detachment of smoke particles were solved, achieving higher protection effect and production safety.
Patent Information
- Application Number
- CN202422966041.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-02
AI Technical Summary
In a shredder, a gap exists between the protective components and the fixed structure, causing the protective components to deform under excessive force. This results in tobacco dust and shreds detaching from the shredder, and sparks generated by the sharpening device entering the cutter roller, affecting production safety and equipment lifespan.
The magnetic components and mating parts are magnetically attracted to each other, and a lateral movement gap is set between the linkage part and the mating part. The fixed structure and the protective component are tightly connected. The magnetic attraction of the magnetic components reduces the impact force, prevents the protective component from deforming, and ensures that the protective component and the sharpening device operate synchronously.
It improves the protective effect of the protective components, reduces the emission of smoke and sparks into the cutter roller, enhances production safety, extends equipment life, and improves grinding effect and production stability.
Smart Images
Figure CN223541379U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of shredding equipment, specifically relating to a shredding machine. Background Technology
[0002] A tobacco shredder is a general term encompassing leaf shredders and stem shredders. On a tobacco processing production line, it cuts processed tobacco leaves or stems into shreds and stems of the required width according to tobacco processing specifications. It primarily uses a rotating cutter roller to cut the tobacco. The roller is circumferentially arranged with blades. To prevent the blades from curling, chipping, or thickening during cutting, a sharpening device that reciprocates relative to the cutter roller is used to sharpen the blades and restore their sharpness. The sharpening device includes a grinding wheel and a drive mechanism that moves the grinding wheel radially forward or backward along the cutter roller. This adjusts the contact between the grinding wheel and the blades to ensure effective sharpening and facilitates later maintenance, guaranteeing that the shredded leaves and stems produced by the shredder meet the required specifications. When a shredder is shredding, the grinding device moves laterally back and forth to grind the blades, usually producing sparks. To prevent the shredded leaves and stems inside from igniting, the shredder is equipped with a protective roller shutter. This protective roller shutter moves synchronously with the grinding device to ensure the separation of the drive mechanism and the cutter roller, preventing sparks from entering the cutter roller. The protective roller shutter also prevents leaf, stem, and tobacco dust from splashing out of the shredder during the cutting process, improving the machine's protective effect. The protective roller shutter also has clearance holes for the grinding wheel's feed and retraction. In the SD5 model shredder, the grinding device is connected to the protective component via a fixed structure. The fixed structure has a protruding shaft, and the protective component has a shaft hole. The cooperation between the protruding shaft and the shaft hole allows the fixed structure to drive the protective component to move.
[0003] However, during the movement of the aforementioned sharpening device, the shaft hole is continuously pressed against by the protruding shaft to achieve the movement of the protective component traction by the fixed structure. The protruding shaft applies a lateral force at the shaft hole. The protective roller shutter also has its own weight, or due to production assembly errors, the fit between it and the fixed structure and the protective component may not be tight. This results in the shaft hole being continuously subjected to an impact force from the protruding shaft, deviating from the direction of movement, during the movement of the protective roller shutter. Especially when the sharpening device changes its direction of movement, it needs to stop and then start, and both stopping and starting processes apply impact force to the mating parts. With increased use, the protective component will protrude and deform between the shaft hole and the clearance hole, causing the edge of the protective roller shutter to warp. During the shredding process, the tobacco dust produced by the cutting roller cutting the tobacco leaves and the tobacco shreds driven by the rotation will spray out from the gaps caused by the warping of the protective roller shutter. If continued use continues, the deformation of the protective component will become more severe. The gap between the protective roller shutter and the fixed structure reduces the length of the protruding shaft pressing against the shaft hole, making it easy for the protruding shaft to detach from the shaft hole during movement, affecting production and endangering the safety of operators. Furthermore, in the SD5 type shredder, the protective roller shutters are located on both sides of the grinding device. During the lateral movement of the grinding device, one side of the protective roller shutter stretches while the other side is rolled up. Therefore, the roller shutters at the shaft holes are continuously subjected to the force of being rolled up, increasing the impact on the shaft holes of the protective components and further accelerating the rolling progress of the protective roller shutters. The protective roller shutters deform further, and during the movement of the grinding device, the protruding shaft continuously applies impact force to the shaft holes. This can easily cause the protective components on one side of the grinding device to roll up and continue to make hard contact with the main body of the grinding device. This results in increased wear on the side of the protective roller shutters that is closer to the grinding machine, reducing the service life of the protective roller shutters. At the same time, it makes it easier for tobacco dust and tobacco shreds to splatter out, affecting production operations. Sparks generated by the grinding blades of the grinding machine can also enter the cutter rollers, easily igniting the tobacco dust and tobacco shreds inside. Utility Model Content
[0004] This application provides a shredder to solve the technical problems of gaps between the protective component and the fixed structure, excessive deformation of the protective component due to excessive force leading to poor adhesion, tobacco dust and tobacco shreds detaching from the shredder, and sparks generated by the grinding device entering the rotation space of the cutter roller.
[0005] The technical solution adopted in this application is as follows:
[0006] A shredder includes a cutting roller, a protective assembly, and a sharpening device disposed opposite the cutting roller. The cutting roller has a plurality of blades for cutting tobacco leaves arranged circumferentially thereon. The sharpening device reciprocates laterally relative to the cutting roller to sharpen the blades. The sharpening device includes a grinding wheel and a drive mechanism for driving the grinding wheel to feed or retract radially along the cutting roller to sharpen the blades. The protective assembly moves synchronously with the sharpening device to laterally separate the drive mechanism and the cutting roller. The protective assembly has a clearance space for the grinding wheel to feed and retract. The sharpening device has a fixing structure. One of the fixing structure and the protective assembly has a linkage part, and the other has a mating part that cooperates with the linkage part. One of the fixing structure and the protective assembly has a magnetic element, and the other has a mating part that can magnetically engage with the magnetic element. The magnetic element is located on the side closer to the clearance space relative to the mating part or the linkage part.
[0007] The shredder described in this application also includes the following additional technical features:
[0008] There is a lateral movement gap between the linkage part and the mating part, so that the fixing structure can move laterally relative to the protective component.
[0009] The fixing structure is provided with a pressing surface, and the protective component has a mating surface that is opposite to the pressing surface. The pressing surface is pressed onto the mating surface by the magnetic attraction of the magnetic component and the mating component.
[0010] The protective component has a positioning hole that is recessed relative to the mating surface, and the magnetic element is built into the positioning hole with its outer surface flush with the mating surface; or, the fixing structure has a positioning hole that is recessed relative to the pressing surface, and the magnetic element is disposed in the positioning hole with its outer surface flush with the pressing surface.
[0011] Both the mating surface and the pressing surface are parallel to the moving direction of the grinding device.
[0012] The magnetic component is detachably mounted to the fixed structure or the protective assembly.
[0013] The shredder further includes a fixing member for mounting the magnetic component to the fixed structure or the protective assembly. The magnetic component is provided with a limiting groove, and the fixing member is provided with a limiting end that abuts against the limiting groove. The top end of the limiting end is flush with or recessed into the surface of the magnetic component.
[0014] The protective component or the fixing structure is provided with a plurality of magnetic elements, which are spaced apart along the width direction of the protective component.
[0015] The protective assembly includes a first protective curtain and a second protective curtain, with a clearance space formed between the first and second protective curtains. The first and second protective curtains move with the sharpening device to have an extended state and a retracted state, respectively.
[0016] The protective component includes a protective part and a connecting structure connected to the protective part. The linkage part or the mating part is disposed on the connecting structure. The magnetic component or the mating component is disposed on the connecting structure. The connecting structure is located at the middle position in the width direction of the protective part. The connecting structure has a contact end that abuts against one side of the sharpening device.
[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:
[0018] 1. This application, by providing clearance, allows the grinding wheel to feed and retract radially along the cutter roller to the grinding blade, facilitating blade grinding adjustment. By incorporating a linkage between the fixed structure and the protective component, and a mating part between the other, the linkage drives the mating part to move, achieving synchronous action between the grinding device and the protective component. This ensures that sparks from the grinding device are blocked by the protective component during the shredder's operation, protecting the tobacco inside the shredder. Furthermore, the protective component prevents tobacco dust generated during the cutter roller's cutting of the tobacco, as well as tobacco shreds carried by the rotating roller, from detaching from the shredder. Simultaneously, the protective component isolates the cutter roller, preventing contact with operators and improving production safety. The magnetic attraction between the fixed structure and the mating component ensures a tighter connection between them, facilitating synchronous action and preventing gaps that could cause deformation due to the impact force. This enhances the protective component's effectiveness. Simultaneously, by positioning the magnetic component relative to the mating or linkage part on the side closer to the clearance space, when the linkage part drives the mating part to move, especially during the process of the grinding device switching the direction of movement, the magnetic attraction between the magnetic component and the mating part can increase the friction between the fixed structure and the protective component, thereby reducing the impact force between the linkage part and the mating part. This prevents the protective component from being subjected to excessive force at the linkage part or mating part, which could cause deformation of the protective component between the linkage part or mating part and the clearance space. It also prevents the protective component from curling after deformation, resulting in poor adhesion, thus improving the protective effect of the protective component and reducing the amount of tobacco dust ejected during the production of the shredder and the entry of sparks generated by the grinding device into the cutter roller during the production process.
[0019] 2. As a preferred embodiment of this application, by providing a lateral movement gap between the linkage part and the mating part, the fixing structure can move laterally relative to the protective component. Especially during the process of switching the movement direction, stopping, and starting the sharpening device, the magnetic component and the mating component magnetically engage. The fixing structure can maintain a tight fit with the protective component while also moving laterally relative to the protective component. This absorbs the vibration and impact generated during the operation of the sharpening device, especially during stopping and starting. The linkage part or mating part reduces the impact force during the movement of the gap, preventing the protective component from being subjected to excessive force and deforming in the part between the linkage part or mating part and the clearance space. This prevents the protective component from curling after deformation, resulting in poor adhesion, and improves the protective effect and durability of the protective component.
[0020] 3. In a preferred embodiment of this application, the fixing structure is provided with a pressing surface, and the protective component is provided with a mating surface opposite to the pressing surface. The pressing surface is pressed against the mating surface by the magnetic attraction of the magnetic component and the mating component, which further increases the contact area between the fixing structure and the protective component, improves the friction between the fixing structure and the protective component, and reduces the impact force between the linkage part and the mating part. This prevents the protective component from being deformed by force between the linkage part or the mating part and the clearance space, thereby preventing the protective component from curling after deformation and causing poor adhesion, and improving the protective effect of the protective component.
[0021] Furthermore, by providing a positioning hole that is recessed relative to the mating surface of the protective component, the magnetic component is housed within the positioning hole, with its outer surface flush with the mating surface. Alternatively, the fixing structure may have a positioning hole that is recessed relative to the pressing surface, with the magnetic component housed within the positioning hole and its outer surface flush with the pressing surface. This allows the pressing surface to fit more tightly against the mating surface. On one hand, this further increases the friction between the fixing structure and the protective component, reduces the impact force between the linkage and mating parts, and prevents the protective component from deforming due to excessive force at the linkage or mating parts. On the other hand, it achieves a compact design of the protective component and the fixing structure, saving the space required to install the magnetic component.
[0022] In a preferred embodiment of this application, by setting the mating surface and the pressing surface to be parallel to the moving direction of the grinding device, the friction between the mating surface and the pressing surface can more directly offset the impact force between the linkage part and the mating part, avoid the mating part or linkage part being subjected to excessive impact force, avoid the partial protective component between the linkage part or mating part and the clearance space being deformed by force, thereby preventing the protective component from curling after deformation and causing poor adhesion, and improving the protective effect of the protective component.
[0023] 4. As a preferred embodiment of this application, by providing a magnetic component that can be detachably installed on the fixed structure or protective component, it is possible to facilitate the replacement and maintenance of the magnetic component and ensure a tight connection between the fixed structure and the protective component.
[0024] Furthermore, by setting a fixing component, the magnetic component is positioned in the limiting groove, with the limiting end of the fixing component abutting against the limiting groove, making the top of the limiting end flush with or recessed into the surface of the magnetic component. This ensures the magnetic attraction effect between the magnetic component and the mating component, improves the fixing effect of the magnetic component, and prevents the magnetic component from being loosely fixed and detaching from the fixing structure or protective assembly.
[0025] 5. As a preferred embodiment of this application, by providing multiple magnetic components spaced apart along the width direction of the protective component, the multiple magnetic components provide greater magnetic attraction, further improving the tight connection between the fixing structure and the protective component, avoiding separation and gaps between the fixing structure and the protective component, preventing the protective component from deforming due to the opposite direction of the impact force caused by the existence of gaps, improving the protective effect of the protective component, increasing the friction between the two to effectively reduce the impact force between the linkage part and the mating part, avoiding deformation of the protective component in the part between the linkage part or mating part and the clearance space, thereby preventing the protective component from curling after deformation and resulting in poor adhesion, and improving the protective effect of the protective component.
[0026] 6. In a preferred embodiment of this application, the protective component includes a first protective curtain and a second protective curtain. The first and second protective curtains move with the sharpening device to have extended and retracted states, respectively. This reduces the equipment space occupied by the protective component and improves the compact design of the shredder. Simultaneously, it enhances the following effect of the protective component and the sharpening device, ensuring the protective component is taut under retraction force, thereby improving its protective effect.
[0027] 7. As a preferred embodiment of this application, by providing a connecting structure, on the one hand, the connecting structure can absorb and disperse vibration, reducing the vibration of the protective part driven by the sharpening device and improving the stability of the protective component's movement. On the other hand, by providing a connecting structure, under the influence of its own gravity, it can offset the upward impact force generated by the sharpening device when it stops or starts, so that the overall force on the protective component is along the movement direction of the sharpening device. By setting the connecting structure at the middle position in the width direction of the protective part, it is easy to disperse the traction force applied by the fixing structure, improving the overall stability of the protective component's movement. At the same time, by setting the linkage or mating part, and the magnetic component or mating component in the connecting structure, a centralized management point is provided, which is convenient for subsequent replacement and maintenance. Moreover, the connecting structure has a contact end that abuts against one side of the sharpening device. By contacting one side of the sharpening device, it can provide lateral support force to the protective component, reducing the impact of the sharpening device's impact force on the protective component when it starts or stops, preventing the protective component from being deformed due to excessive force at the linkage or mating part, and thus preventing the protective component from curling after deformation, resulting in poor adhesion, thereby improving the protective effect of the protective component. Attached Figure Description
[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0029] Figure 1 This is a simplified structural diagram of a shredder according to a preferred embodiment of this application;
[0030] Figure 2 This is a partial schematic diagram of a protective assembly for a shredder component according to a preferred embodiment of this application;
[0031] Figure 3 for Figure 2 Cross-sectional view along the AA direction;
[0032] Figure 4 This is a schematic diagram of the component fixing structure according to a preferred embodiment of this application.
[0033] Figure label:
[0034] 1. Knife roller;
[0035] 2. Protective components; 21. Mating parts; 22. Connecting structure; 23. Magnetic components; 231. Limiting groove; 232. Fixing components; 24. Dating surface; 25. Positioning hole; 26. Protective parts;
[0036] 3. Grinding device; 31. Grinding wheel; 32. Drive mechanism; 33. Fixing structure; 331. Linkage part; 332. Pressing surface. Detailed Implementation
[0037] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.
[0038] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.
[0039] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., 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.
[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0041] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.
[0042] like Figure 1 , Figure 2 , Figure 4 As shown, a shredder includes a cutting roller 1, a protective assembly 2, and a sharpening device 3 disposed opposite to the cutting roller 1. The cutting roller 1 is provided with a plurality of blades for cutting tobacco leaves along its circumference. The sharpening device 3 moves laterally and reciprocally relative to the cutting roller 1 to sharpen the blades. The sharpening device 3 includes a grinding wheel 31 and a drive mechanism 32 that drives the grinding wheel 31 to feed or retract radially along the cutting roller 1 to sharpen the blades. The protective assembly 2 moves synchronously with the sharpening device 3 to laterally separate the drive mechanism 32 and the cutting roller 1. The protective assembly 2 is provided with a clearance space for the grinding wheel 31 to feed and retract. The sharpening device 3 is provided with a fixing structure 33. One of the fixing structure 33 and the protective assembly 2 is provided with a linkage part 331, and the other is provided with a mating part 21 that cooperates with the linkage part 331. One of the fixing structure 33 and the protective assembly 2 is provided with a magnetic element 23, and the other is provided with a mating part that can magnetically engage with the magnetic element 23. The magnetic element 23 is located on the side closer to the clearance space relative to the mating part 21 or the linkage part 331.
[0043] By providing clearance, the grinding wheel 31 can be radially fed and retracted along the cutter roller 1 to grind the cutting blade, facilitating blade grinding adjustment. A linkage part 331 is provided on one of the fixed structure 33 and the protective component 2, while a mating part 21 is provided on the other. The linkage part 331 drives the mating part 21 to move, achieving synchronous operation of the grinding device 3 and the protective component 2. This ensures that sparks from the grinding device 3 are blocked by the protective component 2 during the shredder's operation, protecting the tobacco inside the shredder. Furthermore, the protective component 2 prevents tobacco dust formed by the cutter roller 1 cutting the tobacco and tobacco shreds carried by the rotating cutter roller 1 from detaching from the shredder. Simultaneously, the protective component 2 isolates the cutter roller 1, preventing contact with operators and improving production safety. By setting the magnetic component 23 to magnetically engage with the mating component, the connection between the fixing structure 33 and the protective component 2 is made tighter, making it easier for the fixing structure 33 to drive the protective component 2 to move synchronously. This avoids the fixing structure 33 from separating from the protective component 2 and creating a gap. It also prevents the protective component 2 from deforming due to the impact force caused by the gap, thus improving the protective effect of the protective component 2. Simultaneously, the magnetic component 23 is positioned on the side closer to the clearance space relative to the mating part 21 or the linkage part 331. When the linkage part 331 drives the mating part 21 to move, especially during the process of the grinding device 3 switching the direction of movement, the grinding device 3 stops and starts. The magnetic attraction between the magnetic component 23 and the mating part can increase the friction between the fixed structure 33 and the protective component 2, thereby reducing the impact force between the linkage part 331 and the mating part 21. This prevents the protective component 2 from being subjected to excessive force at the linkage part 331 or the mating part 21, which could cause deformation of part of the protective component 2 between the linkage part 331 or the mating part 21 and the clearance space. It also prevents the protective component 2 from curling after deformation, resulting in poor adhesion, thus improving the protective effect of the protective component 2 and reducing the emission of tobacco dust during the production process of the shredder and the entry of sparks generated by the grinding device 3 into the cutter roller 1.
[0044] like Figure 1 As shown, the clearance space is the space provided for the drive mechanism 32 and the grinding wheel 31. Those skilled in the art will understand that, as... Figure 1As shown, the drive mechanism 32 and the grinding wheel 31 are arranged vertically, with the clearance space being the vertical space where the drive mechanism 32 and the grinding wheel 31 are located, or the vertical space where the grinding wheel 32 is located, or the drive mechanism 32 and the grinding wheel 31 are arranged horizontally or obliquely, with the clearance space being the horizontal space or oblique space where the drive mechanism 32 and / or the grinding wheel 31 are located. In this application, the arrangement of the mating part is not limited. It can be a magnetic connector that attracts the magnetic part 23, or a component made of ferromagnetic material. The mating part can be set on the protective component 2 or the fixed structure 33 and fixedly connected to the protective component 2 or the fixed structure 33, or it can be embedded inside the protective component 2 or the fixed structure 33, or the mating part can be integrally formed with the protective component 2 or the fixed structure 33 during the production process, or the protective component 2 or the fixed structure 33 can be made of ferromagnetic material, and the mating part can be the body of the protective component 2 or the fixed structure 33.
[0045] In this application, the engagement method between the linkage 331 and the mating component can be any of the following embodiments:
[0046] Implementation method 1: There is a lateral movement gap between the linkage part 331 and the mating part 21 so that the fixed structure 33 can move laterally relative to the protective component 2.
[0047] As a preferred option Figure 2 , Figure 4 As shown, the linkage part 331 is a protruding shaft provided on the fixed structure 33, and the mating part 21 is a shaft hole provided on the linkage part 331. The shaft hole and the protruding shaft are clearance-fitted to have a clearance for lateral movement.
[0048] By setting a lateral movement gap between the linkage part 331 and the mating part 21, the fixing structure 33 can move laterally relative to the protective component 2. Especially during the process of the sharpening device 3 switching its movement direction, stopping, and starting, the magnetic part 23 and the mating part magnetically engage. The fixing structure 33 can maintain a tight fit with the protective component 2 while also moving laterally relative to the protective component 2. This absorbs the vibration and impact generated during the operation of the sharpening device 3, especially during stopping and starting. The linkage part 331 or the mating part 21 reduces the impact force during the gap movement, preventing the protective component 2 from being subjected to excessive force and deforming between the linkage part 331 or the mating part 21 and the clearance space. This prevents the protective component 2 from curling after deformation, resulting in poor adhesion, and improves the protective effect and durability of the protective component 2.
[0049] Implementation Method 2: The linkage part 331 is fixedly connected to the mating part 21, and the fixing structure 33 drives the protective component 2 to move laterally. As a preferred embodiment... Figure 2 , Figure 4As shown, the linkage part 331 is a protruding shaft provided on the fixed structure 33, and the mating part 21 is a shaft hole provided on the linkage part 331. The shaft hole and the protruding shaft are interference-fitted to make the fixed structure 33 and the protective component 2 securely connected.
[0050] In Embodiment 1 and Embodiment 2, the arrangement of the linkage part 331 and the mating part 21 is not limited. It can be a hole-shaft mating method, or the linkage part 331 can be an irregular structure such as an L-shape or a U-shape. The mating part 21 can be a column with a groove that protrudes from the protective component 2 or the fixing structure 33.
[0051] As a preferred embodiment of this application, such as Figure 2 , Figure 4 As shown, the fixing structure 33 is provided with a pressing surface 332, and the protective component 2 has a mating surface 24 that is disposed opposite to the pressing surface 332. The pressing surface 332 is pressed onto the mating surface 24 by magnetic attraction between the magnetic component 23 and the mating component.
[0052] The fixing structure 33 is provided with a pressing surface 332, and the protective component 2 is provided with a mating surface 24 opposite to the pressing surface 332. The pressing surface 332 is pressed against the mating surface 24 by the magnetic attraction of the magnetic component 23 and the mating component, which further increases the contact area between the fixing structure 33 and the protective component 2, improves the friction between the fixing structure 33 and the protective component 2, and reduces the impact force between the linkage part 331 and the mating part 21. This prevents the part of the protective component 2 between the linkage part 331 or the mating part 21 and the clearance space from being deformed by force, thereby preventing the protective component 2 from curling after deformation and causing poor adhesion, and improving the protective effect of the protective component 2.
[0053] In this embodiment, the magnetic component 23 can be arranged in any of the following embodiments:
[0054] Example 1: As Figure 1 , Figure 2 , Figure 4 As shown, the protective component 2 has a positioning hole 25 recessed relative to the mating surface 24. The magnetic component 23 is housed within the positioning hole 25, and its outer surface is flush with the mating surface 24. Preferably, the fixing structure 33 is made of a ferromagnetic material, and the outer surface of the magnetic component 23 magnetically engages with the pressing surface 332. Those skilled in the art will understand that this application can provide mounting holes in the fixing structure 33, and install a mating component made of a magnetic material or ferromagnetic material that attracts the magnetic component 23 within the mounting holes to magnetically engage with the magnetic component 23. Alternatively, the mating component made of a magnetic material or ferromagnetic material that attracts the magnetic component 23 can be integrally formed with the fixing structure 33 during the production stage through processes such as casting.
[0055] Example 2: Unlike Example 1, the fixing structure 33 is provided with a positioning hole 25 that is recessed relative to the pressing surface 332, and the outer surface of the magnetic component 23 is flush with the pressing surface 332.
[0056] In Embodiments 1 and 2, by providing a positioning hole 25 recessed relative to the mating surface 24 of the protective component 2, the magnetic component 23 is housed within the positioning hole 25, and the outer surface of the magnetic component 23 is flush with the mating surface 24. Alternatively, the fixing structure 33 is provided with a positioning hole 25 recessed relative to the pressing surface 332, and the magnetic component 23 is disposed within the positioning hole 25, with its outer surface flush with the pressing surface 332. The magnetic component 23 makes the pressing surface 332 fit more tightly against the mating surface 24. On the one hand, this further increases the friction between the fixing structure 33 and the protective component 2, reduces the impact force between the linkage part 331 and the mating part 21, and prevents the protective component 2 from deforming due to excessive force at the linkage part 331 or the mating part 21. On the other hand, it achieves a compact arrangement of the protective component 2 and the fixing structure 33, saving the space required to install the magnetic component 23.
[0057] Example 3: The protective component 2 is provided with a positioning hole 25 that is recessed relative to the mating surface 24. The magnetic component 23 is built into the positioning hole 25 and the outer surface of the magnetic component 23 protrudes from the mating surface 24. The fixing structure 33 is provided with a recessed portion that is recessed relative to the pressing surface 332. The mating component is provided in the recessed portion. The part of the magnetic component 23 that protrudes from the mating surface 24 enters the recessed portion of the fixing structure 33 and magnetically engages with the mating component. Alternatively, the mating component is the body of the fixing structure 33, and the magnetic component 23 magnetically engages with the side and bottom surfaces of the positioning hole 25.
[0058] Example 4: The fixing structure 33 is provided with a positioning hole 25 that is recessed relative to the pressing surface 332. The magnetic component 23 is built into the positioning hole 25 and the outer surface of the magnetic component 23 protrudes from the pressing surface 332. The protective component 2 is provided with a recessed portion that is recessed relative to the mating surface 24. The mating component is disposed in the recessed portion. The part of the magnetic component 23 that protrudes from the pressing surface 332 enters the recessed portion of the protective component 2 and magnetically engages with the mating component. Alternatively, the mating component is the body of the protective component 2, and the magnetic component 23 magnetically engages with the side and bottom surfaces of the positioning hole 25.
[0059] Example 5: The magnetic component 23 is disposed on one side of the pressing surface 332 or the mating surface 24, and the magnetic component 23 protrudes out. The protective component 2 or the fixing structure 33 has a clearance area to avoid the magnetic component 23, and the mating component is installed in the clearance area.
[0060] In a preferred embodiment of this method, both the mating surface 24 and the pressing surface 332 are parallel to the moving direction of the grinding device 3. The mating surface 24 can be as follows: Figure 1 , Figure 2 The horizontal setting shown can also be set vertically, as shown below. Figure 4 As shown, the fixed structure 33 side ( Figure 4 The face directly opposite the fixed structure serves as the pressing surface 332 or the mating surface 24. In this case, the protective component 2 has a protrusion with a side facing the fixed structure that acts as the pressing surface 332 or the mating surface 24. By setting the mating surface 24 and the pressing surface 332 parallel to the moving direction of the grinding device 3, the friction between the mating surface 24 and the pressing surface 332 can more directly offset the impact force between the linkage part 331 and the mating part 21. This prevents the mating part 21 or the linkage part 331 from being subjected to excessive impact force, and avoids deformation of the protective component 2 between the linkage part 331 or the mating part 21 and the clearance space. This prevents the protective component 2 from warping after deformation, resulting in poor adhesion and improving its protective effect.
[0061] In this application, the magnetic component 23 can be installed in the fixing structure 33 or the protective component 2 in any of the following embodiments:
[0062] Implementation Method 3: The magnetic component 23 is detachably installed on the fixed structure 33 or the protective component 2. By detachably installing the magnetic component 23 on the fixed structure 33 or the protective component 2, it is easy to replace and maintain the magnetic component 23, and to ensure a tight connection between the fixed structure 33 and the protective component 2.
[0063] In embodiment three, the magnetic component 23 can be installed in any of the following embodiments:
[0064] Example 5: Figure 2 , Figure 3 As shown, the shredder also includes a fixing member 232 for mounting the magnetic component 23 to the fixing structure 33 or the protective component 2. The magnetic component 23 has a limiting groove 231, and the fixing member 232 has a limiting end that abuts against the limiting groove 231. The top of the limiting end is flush with or recessed from the surface of the magnetic component 23. By setting the fixing member 232, the magnetic component 23 is positioned in the limiting groove 231, and the limiting end of the fixing member 232 abuts against the limiting groove 231, so that the top of the limiting end is flush with or recessed from the surface of the magnetic component 23. This ensures the magnetic attraction effect between the magnetic component 23 and the mating component, improves the fixing effect of the magnetic component 23, and prevents the magnetic component 23 from being loosely fixed and falling out of the fixing structure 33 or the protective component 2.
[0065] In embodiment 5, the fastener 232 can be configured in any of the following specific examples:
[0066] Specific example 1: if Figure 2 , Figure 3As shown, the fixing component 232 is a screw. The screw passes through the magnetic component 23 and is fixedly connected to the fixing structure 33 or the protective component 2. The screw head is a limiting end, and the limiting groove 231 is a recessed groove. One end of the screw head abuts against the limiting groove 231, and the other end is flush with or recessed from the surface of the magnetic component 23.
[0067] Specific Example 2: The fixing member 232 is an elastic pressure plate. The elastic pressure plate has side plates disposed on both sides of the magnetic member 23 and an elastic horizontal plate connecting the two side plates. The side plates are fixedly connected to the fixing structure 33 or the protective component 2. The magnetic member 23 is fixed to the fixing structure 33 or the protective component 2 by the elastic horizontal plate abutting against the limiting groove 231. The limiting groove 231 is a through groove opened along the upper surface of the magnetic member 23 to the side. The top of the elastic horizontal plate is flush with the surface of the magnetic member 23 or recessed from the surface of the magnetic member 23.
[0068] Example 6: The magnetic component 23 has a card interface on its edge, and the fixing structure 33 or the protective component 2 has a card-connecting part. The card-connecting part cooperates with the card interface so that the magnetic component 23 is installed on the fixing structure 33 or the protective component 2.
[0069] Implementation method 4: The magnetic component 23 is integrally formed with the fixing structure 33 or the protective component 2 during the production process.
[0070] In this application, the magnetic element 23 can be disposed on the protective component 2 or the fixing structure 33 in any of the embodiments:
[0071] Implementation Method 5: The protective component 2 or the fixing structure 33 is provided with a plurality of magnetic elements 23, which are spaced apart along the width direction of the protective component 2. Figure 2 The horizontal direction in the middle, Figure 1 The direction is perpendicular to the plane of the attached drawing. By setting multiple magnetic elements 23 at intervals along the width direction of the protective component 2, the multiple magnetic elements 23 provide a greater magnetic attraction force, further improving the tight connection between the fixing structure 33 and the protective component 2, avoiding separation and gaps between the fixing structure 33 and the protective component 2, and preventing the protective component 2 from deforming due to the impact force caused by the existence of gaps, thus improving the protective effect of the protective component 2. The increased friction between the two effectively reduces the impact force between the linkage part 331 and the mating part 21, preventing the part of the protective component 2 between the linkage part 331 or the mating part 21 and the clearance space from being deformed by force, thereby preventing the protective component 2 from curling after deformation and resulting in poor adhesion, thus improving the protective effect of the protective component 2.
[0072] Implementation Method Six: The protective component 2 or the fixing structure 33 is provided with a magnetic element 23, which extends along the width direction of the protective component 2 towards both sides of the protective component 2. By increasing the magnetic attraction area between the magnetic element 23 and the protective component 2 or the fixing structure 33, the fixing structure 33 is tightly connected to the protective component 2.
[0073] As a preferred embodiment of this application, such as Figure 1 As shown, the protective component 2 includes a first protective curtain (located on the left side of the sharpening device 3) and a second protective curtain (located on the right side of the sharpening device 3). A clearance space is formed between the first protective curtain and the second protective curtain. The first protective curtain and the second protective curtain move with the sharpening device 3 to have an extended state and a retracted state, respectively.
[0074] The protective component 2 includes a first protective curtain and a second protective curtain. The first and second protective curtains move with the sharpening device 3 to have extended and retracted states, respectively. This reduces the equipment space occupied by the protective component 2 and improves the compact design of the shredder. At the same time, it improves the following effect of the protective component 2 and the sharpening device 3, so that the protective component 2 is in a taut state under the retraction force, thereby improving the protective effect of the protective component 2.
[0075] Those skilled in the art will understand that the protective component 2 may include a first protective curtain and a second protective curtain, or the first and second protective curtains may be integrally formed, with an clearance space provided on the protective component 2. The protective component 2 may be as follows: Figure 1 The protective roller shutter shown can also be a horizontally arranged protective plate, with mounting grooves for accommodating the protective plate on both sides of the shredder, etc., which are not limited in this application.
[0076] As a preferred embodiment of this application, such as Figure 1 , Figure 2 As shown, the protective component 2 includes a protective part 26 and a connecting structure 22 connected to the protective part 26. A linkage part 331 or a mating part 21 is provided on the connecting structure 22, and a magnetic component 23 or a mating component is provided on the connecting structure 22. Preferably, as shown... Figure 2 As shown, the mating part 21 and the magnetic component 23 are disposed on the connecting structure 22. The connecting structure 22 is located at the middle position in the width direction of the protective part 26, and the connecting structure 22 has a contact end that abuts against one side of the sharpening device 3, such as... Figure 2The upper end of the connecting structure 22 is shown. By setting the connecting structure 22, on the one hand, the connecting structure 22 can absorb and disperse vibration, reduce the vibration of the protective part 26 driven by the sharpening device 3, and improve the stability of the movement of the protective component 2. On the other hand, by setting the connecting structure 22, under the influence of its own gravity, it can offset the upward impact force generated by the sharpening device 3 when it stops or starts, so that the overall force of the protective component 2 is along the moving direction of the sharpening device 3. By setting the connecting structure 22 at the middle position in the width direction of the protective part 26, it is easy to disperse the traction force applied by the fixing structure 33, improve the overall stability of the movement of the protective component 2, and at the same time, the linkage part 331 or the mating part 21 is set in the connecting structure 22, and the magnetic part 23 or the mating part is set in the connecting structure 22, providing a centralized management point for easy subsequent replacement and maintenance. Furthermore, the connecting structure 22 has a contact end that abuts against one side of the sharpening device 3. By contacting one side of the sharpening device 3, it can provide lateral support force to the protective component 2, reduce the impact of the sharpening device 3 on the protective component 2 when it starts or stops, prevent the protective component 2 from being deformed due to excessive force at the linkage part 331 or the mating part 21, and thus prevent the protective component 2 from curling after deformation, resulting in poor adhesion and improving the protective effect of the protective component 2.
[0077] Those skilled in the art will understand that, in this application, a connecting structure 22, a linkage part 331 or a mating part 21, and a magnetic component 23 or a mating component can be provided on the connecting structure 22. Alternatively, the protective part 26 can be provided with sufficient thickness to house the linkage part 331 or the mating part 21, and the magnetic component 23 or the mating component, thus saving the use of the connecting structure 22 and improving the compact layout of the shredder. In this application, a fixing structure 33 can be provided extending along the width direction of the protective part 26. Multiple linkage parts 331 and mating parts 21 can be provided along the width direction of the protective component 2 to further disperse the impact force. Furthermore, multiple fixing structures 33 can be provided to improve the stability of the connection between the protective component 2 and the fixing structure 33.
[0078] For any parts not mentioned in this application, existing technologies may be used or referenced.
[0079] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0080] The above description is merely an 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 principle of this application should be included within the scope of the claims of this application.
Claims
1. A shredder, comprising a cutting roller, a protective assembly, and a sharpening device disposed opposite the cutting roller, wherein the cutting roller is provided with a plurality of blades for cutting tobacco leaves along its circumference, the sharpening device reciprocating laterally relative to the cutting roller to sharpen the blades, the sharpening device comprising a grinding wheel and a drive mechanism for driving the grinding wheel to feed or retract radially along the cutting roller to sharpen the blades, the protective assembly operating synchronously with the sharpening device to laterally separate the drive mechanism and the cutting roller, the protective assembly having clearance space for the feeding and retraction of the grinding wheel, characterized in that: The sharpening device has a fixed structure. One of the fixed structure and the protective component has a linkage part, and the other has a mating part that cooperates with the linkage part. One of the fixed structure and the protective component has a magnetic element, and the other has a mating part that can magnetically engage with the magnetic element. The magnetic element is located on the side closer to the clearance space relative to the mating part or the linkage part.
2. The shredder according to claim 1, characterized in that: There is a lateral movement gap between the linkage part and the mating part, so that the fixing structure can move laterally relative to the protective component.
3. A shredder according to claim 1, characterized in that: The fixing structure is provided with a pressing surface, and the protective component has a mating surface that is opposite to the pressing surface. The pressing surface is pressed onto the mating surface by the magnetic attraction of the magnetic component and the mating component.
4. A shredder according to claim 3, characterized in that: The protective component is provided with a positioning hole that is recessed relative to the mating surface, and the magnetic component is built into the positioning hole with its outer surface flush with the mating surface. Alternatively, the fixing structure is provided with a positioning hole that is recessed relative to the pressing surface, the magnetic element is disposed in the positioning hole and the outer surface of the magnetic element is flush with the pressing surface.
5. A shredder according to claim 3, characterized in that: Both the mating surface and the pressing surface are parallel to the moving direction of the grinding device.
6. A shredder according to claim 1, characterized in that: The magnetic component is detachably mounted to the fixed structure or the protective assembly.
7. A shredder according to claim 6, characterized in that: The shredder further includes a fixing member for mounting the magnetic component to the fixed structure or the protective assembly. The magnetic component is provided with a limiting groove, and the fixing member is provided with a limiting end that abuts against the limiting groove. The top end of the limiting end is flush with or recessed into the surface of the magnetic component.
8. A shredder according to claim 1, characterized in that: The protective component or the fixing structure is provided with a plurality of magnetic elements, which are spaced apart along the width direction of the protective component.
9. A shredder according to claim 1, characterized in that: The protective assembly includes a first protective curtain and a second protective curtain, with a clearance space formed between the first and second protective curtains. The first and second protective curtains move with the sharpening device to have an extended state and a retracted state, respectively.
10. A shredder according to claim 1, characterized in that: The protective component includes a protective part and a connecting structure connected to the protective part. The linkage part or the mating part is disposed on the connecting structure. The magnetic component or the mating component is disposed on the connecting structure. The connecting structure is located at the middle position in the width direction of the protective part. The connecting structure has a contact end that abuts against one side of the sharpening device.