Filter stick cutting device

Abstract

The invention relates to a filter stick cutting device. The filter stick cutting device comprises a main body rack, a quick release base, a cutting assembly, a knife sharpening assembly, a cooling assembly and a dust removal assembly. And the quick release base is detachably connected with the main body rack. The cutting assembly comprises a cutterhead and a protective cover, and the cutterhead is rotationally arranged on the quick-release base. The cutter sharpening assembly is arranged on the quick-release base and comprises a grinding wheel, and the grinding wheel abuts against the cutter head. The cooling assembly and the dust removal assembly are both connected with the protective cover, the cooling assembly is used for blowing cooling gas into the protective cover, and the dust removal assembly is used for sucking dust-containing gas in the protective cover. And under the combined action of the knife sharpening assembly, the cooling assembly and the dust removal assembly, the failure rate of the cutting assembly is reduced, the maintenance time is shortened, and then the cigarette production efficiency is improved. And during maintenance, the quick-release base can be directly disassembled, so that the disassembly is convenient, the disassembly range is favorably reduced, and the disassembly difficulty is reduced.

Description

Technical Field

[0001] This invention relates to the field of cigarette processing technology, and in particular to a filter rod cutting device. Background Technology

[0002] The YJ27 filter tip filling machine is a relatively mature cigarette processing equipment. Its function is to process double-length cigarettes rolled by a cigarette rolling machine into finished filter cigarettes. After the cigarette rolling machine feeds the double-length cigarettes to the inlet drum of the filling machine, they are cut into two cigarettes of equal length. These two cigarettes are then separated by a distance, and a filter tip is placed between them, forming a "coupling." Paper is then attached, and the cigarettes are twisted together to form a double-length filter cigarette. Finally, the filter tip is cut to form the finished filter cigarette. The filter tip, also called a filter rod, is fed into the filling machine by a filter rod supply system. The filling machine includes a filter rod cutting device used to cut the filter rods.

[0003] In actual production, dust, adhesive residue, and other foreign matter are generated during filter rod slitting, which adhere to the cutter blades of the filter rod cutting device. When a large amount of foreign matter adheres to the cutter surface, it leads to a decrease in cutting quality, such as uneven cuts or incomplete filter rod cuts. In severe cases, blade breakage may occur, and the gear transmission components in the filter rod cutting device may be damaged due to obstructed blade rotation. When blade breakage or gear transmission component damage occurs, the filter rod cutting device needs to be disassembled and repaired, increasing equipment maintenance costs and impacting cigarette production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a filter rod cutting device that is easy to disassemble, has a low failure rate, and is beneficial to improving the production efficiency of cigarettes.

[0005] To achieve this objective, the present invention adopts the following technical solution: A filter rod cutting device is provided, comprising a main frame, a quick-release base, a cutting assembly, a grinding assembly, a cooling assembly, and a dust removal assembly. The quick-release base is detachably connected to the main frame. The cutting assembly includes a cutter disc for cutting filter rods and a protective cover surrounding the cutter disc. The cutter disc is rotatably mounted on the quick-release base. The grinding assembly is mounted on the quick-release base and includes a grinding wheel that abuts against the cutting edge on the cutter disc. The cooling assembly and the dust removal assembly are both connected to the protective cover. The cooling assembly is used to spray cooling gas into the protective cover, and the dust removal assembly is used to extract dust-laden gas from the protective cover.

[0006] As a preferred embodiment of the filter rod cutting device, the quick-release base is connected to the main frame by a first screw, the quick-release base is provided with a screw hole for disassembly, and the connection between the quick-release base and the main frame is provided with a disassembly groove for inserting disassembly tools.

[0007] As a preferred embodiment of the filter rod cutting device, the cutting assembly further includes a bearing housing, a drive shaft, and a cutter holder. The bearing housing is disposed on the quick-release base, the drive shaft is rotatably disposed on the bearing housing, the cutter holder is detachably connected to the drive shaft, the cutter disc is detachably disposed on the cutter holder, and the protective cover is mounted on the bearing housing.

[0008] As a preferred embodiment of the filter rod cutting device, the main frame is provided with a power source and a gear transmission mechanism, the transmission shaft is provided with a first gear, the power source is connected to the first gear through the gear transmission mechanism, and the hardness value of the first gear is less than the hardness value of the gear in the gear transmission mechanism.

[0009] As a preferred embodiment of the filter rod cutting device, the grinding assembly further includes a drive unit and a bracket, the grinding wheel is mounted on the bracket, the drive unit is connected to the bracket, and the drive unit is used to drive the grinding wheel closer to or away from the cutter head.

[0010] As a preferred embodiment of the filter rod cutting device, the driving component includes a housing, a rotating shaft, a telescopic shaft, and a handwheel. The housing is mounted on the quick-release base, the telescopic shaft passes through the housing and is slidably connected to the housing, and a key is provided between the telescopic shaft and the housing to limit the rotation of the telescopic shaft. The rotating shaft is rotatably mounted on the housing, one end of the rotating shaft is threadedly connected to the telescopic shaft, and the other end is connected to the handwheel. By rotating the handwheel, the telescopic shaft is driven to extend and retract relative to the housing.

[0011] As a preferred embodiment of the filter rod cutting device, the protective cover includes a first connector and a second connector. The first connector is used for threaded connection with the cooling component. The first connector is located above the protective cover and along the rotation direction of the cutter head. The first connector is located downstream of the grinding wheel and upstream of the cutting station. The second connector is used for threaded connection with the dust removal component and is located below the protective cover.

[0012] As a preferred embodiment of the filter rod cutting device, the first connector is provided with a gas flow channel for blowing the cooling gas, and the blowing direction of the gas flow channel is opposite to the rotation direction of the cutter disc.

[0013] As a preferred embodiment of the filter rod cutting device, the cooling assembly includes a vortex tube and a cooling pipe. The vortex tube has a vortex chamber inside, and the outer wall of the vortex tube is provided with an inlet end, a cold air outlet end, and a hot air outlet end that communicate with the vortex chamber. The inlet end is connected to an air source through the cooling pipe, and the air source is used to input compressed air into the vortex chamber. The cold air outlet end is connected to the first connector through the cooling pipe, and the hot air outlet end is used to connect to the discharge pipe.

[0014] As a preferred embodiment of the filter rod cutting device, the dust removal assembly includes a negative pressure generator and a dust removal pipeline. The negative pressure generator includes a gas inlet, a gas outlet, and a negative pressure end. The gas inlet is connected to a gas source through the dust removal pipeline. The gas source is used to input compressed air into the negative pressure generator. The negative pressure end is connected to the second connector through the dust removal pipeline. The gas outlet is used to connect to an exhaust pipeline.

[0015] The advantages of this invention compared to the prior art are: The filter rod cutting device of this invention incorporates a grinding assembly that utilizes a grinding wheel to abut against the cutter disc. During the disc's rotation, the grinding wheel continuously grinds the disc, ensuring the blades remain sharp and reliably cut the filter rods, preventing jamming or chipping. A cooling assembly uses cooling gas to cool the disc, effectively dissipating heat generated during cutting and friction with the grinding wheel, preventing overheating that could affect cutting quality. A dust removal assembly removes dust, adhesive residue, and other foreign matter generated during filter rod cutting, as well as from the grinding wheel, preventing the disc from becoming contaminated and affecting cutting quality. Furthermore, a detachable quick-release base is mounted on the main frame, allowing maintenance personnel to quickly remove the cutting assembly from the main frame in case of component damage. This reduces the scope of disassembly within the entire filter rod cutting device, simplifying maintenance and shortening repair time. Therefore, the combined effect of the grinding, cooling, and dust removal components helps reduce the failure rate of the cutting components, shorten maintenance time, and thus improve cigarette production efficiency. During maintenance, the quick-release base can be directly disassembled, facilitating easy disassembly, reducing the scope of disassembly, and lowering the difficulty of disassembly. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the filter rod cutting device according to an embodiment of the present invention.

[0018] Figure 2This is a cross-sectional view of the filter rod cutting device according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the installation of the quick-release base and the main frame according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the cooling assembly and dust removal assembly according to an embodiment of the present invention.

[0021] Figure 5 This is a cross-sectional view of the negative pressure generator according to an embodiment of the present invention.

[0022] Figure 6 This is a cross-sectional view of a vortex tube according to an embodiment of the present invention.

[0023] In the picture: 1. Main frame; 11. Gear transmission mechanism; 2. Quick-release base; 21. Screw hole for disassembly; 22. Notch; 3. Cutting assembly; 31. Drive shaft; 32. First gear; 33. Tool holder; 331. Base plate; 332. Cover plate; 333. Second screw; 34. Tool disc; 35. Protective cover; 351. First connector; 352. Second connector; 36. Bearing seat; 4. Grinding assembly; 41. Grinding wheel; 42. Bracket; 43. Drive component; 431 432. Outer shell; 433. Rotating shaft; 434. Telescopic shaft; 435. Handwheel; 436. Spring; 437. Key; 5. Cooling assembly; 51. Vortex tube; 510. Vortex chamber; 511. Inlet end; 512. Cold air outlet end; 513. Hot air outlet end; 6. Dust removal assembly; 61. Negative pressure generator; 611. Gas inlet end; 612. Negative pressure end; 613. Gas outlet end; 7. First screw; 8. Positioning pin; 9. Cutting station; 10. Gas source. Detailed Implementation

[0024] The advantages and features of the present invention, as well as methods of implementing them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided merely to complete the disclosure of the invention and to enable those skilled in the art to fully understand the scope of the invention, which is defined only by the scope of the claims. The same reference numerals denote the same constituent elements throughout the specification.

[0025] The present invention will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1 to 4As shown, this invention provides a filter rod cutting device for cutting filter rods in a cigarette manufacturing process. The filter rod cutting device includes a main frame 1, a quick-release base 2, a cutting assembly 3, a grinding assembly 4, a cooling assembly 5, and a dust removal assembly 6. The main frame 1 provides overall support and houses a power source and other supporting components. The quick-release base 2 is used to mount the cutting assembly 3 and the grinding assembly 4, and is detachably connected to the main frame 1. The cutting assembly 3 includes a cutter disc 34 and a protective cover 35. The cutter disc 34 has a disc-like structure and is rotatably mounted on the quick-release base 2. The cutter disc 34 is used to cut the filter rod located at the cutting station 9. The protective cover 35 surrounds the cutter disc 34 and protects it. The grinding assembly 4 is mounted on the quick-release base 2 and includes a grinding wheel 41. The grinding wheel 41 abuts against the cutting edge on the cutter disc 34 and is used to grind the cutting edge of the cutter disc 34. The cooling assembly 5 and the dust removal assembly 6 are mounted on the main frame 1. The cooling assembly 5 is connected to the protective cover 35 and is used to spray cooling gas into the protective cover 35 to cool the cutter head 34. The dust removal assembly 6 is connected to the protective cover 35 and is used to extract dust-laden gas from the protective cover 35.

[0027] Understandably, by setting up the grinding assembly 4, the grinding wheel 41 abuts against the cutter head 34. During the rotation of the cutter head 34, the grinding wheel 41 can continuously grind the cutter head 34 to ensure the sharpness of the cutting edge, so that the cutter head 34 can reliably cut the filter rod and avoid jamming or chipping. By setting up the cooling assembly 5, the cooling gas is used to cool the cutter head 34. The heat generated by the cutter head 34 during the cutting operation and the friction with the grinding wheel 41 can be dissipated in time, preventing the cutter head 34 from affecting the cutting quality due to excessive temperature. By setting up the dust removal assembly 6, dust, glue residue and other foreign objects generated when cutting the filter rod, as well as foreign objects generated during the grinding of the grinding wheel 41, can be promptly sucked away by the dust removal assembly 6 with the gas, preventing the cutter head 34 from being affected by a large amount of foreign objects adhering to it. Therefore, with the assistance of the grinding assembly 4, cooling assembly 5, and dust removal assembly 6, the cutter disc 34 can smoothly cut the filter rod, avoiding jamming, chipping, and damage to transmission components. This helps reduce maintenance costs and improve cigarette production efficiency. Simultaneously, by detachably installing a quick-release base 2 on the main frame 1 and mounting the cutting assembly 3 on it, maintenance personnel can quickly remove the cutting assembly 3 from the main frame 1 in case of component damage. This reduces the disassembly range of the entire filter rod cutting device, lowers maintenance difficulty, and shortens maintenance time.

[0028] Specifically, refer to Figure 3As shown, the quick-release base 2 and the main frame 1 are detachably connected by a first screw 7. To improve the installation accuracy of the quick-release base 2, the filter rod cutting device also includes a positioning pin 8, which passes through the quick-release base 2 and the main frame 1. Correspondingly, the quick-release base 2 and the main frame 1 are also provided with pin holes for the positioning pin 8 to pass through. To facilitate the smooth separation of the quick-release base 2 from the main frame 1 during disassembly, the quick-release base 2 is also provided with a disassembly screw hole 21, which extends through both ends of the quick-release base 2 in the thickness direction. The disassembly screw hole 21 is used to install a set screw. During disassembly, the set screw is screwed into the disassembly screw hole 21. As the set screw is continuously inserted, the end of the set screw presses against the main frame 1, thereby lifting the entire quick-release base 2 to facilitate disassembly of the quick-release base 2. Furthermore, a disassembly groove is provided at the connection between the quick-release base 2 and the main frame 1. The disassembly groove is used to insert a disassembly tool so that the connection between the quick-release base 2 and the main frame 1 can be pried open using the disassembly tool. Specifically, a notch 22 is provided on the side wall of the quick-release base 2, and the notch 22 and the main frame 1 form a disassembly groove.

[0029] Specifically, refer to Figure 1 and Figure 2As shown, the cutting assembly 3 includes a bearing housing 36, a drive shaft 31, a first gear 32, a cutter holder 33, a cutter disc 34, and a protective cover 35. The bearing housing 36 is fixedly mounted on the quick-release base 2 by fasteners (e.g., screws). The drive shaft 31 is used to transmit torque to the cutter disc 34. The drive shaft 31 is mounted on the bearing housing 36 via bearings and can rotate relative to the bearing housing 36. The first gear 32 is located at one end of the drive shaft 31 and is used to transmit power to the drive shaft 31. A power source and a gear transmission mechanism 11 are provided on the main frame 1. The power source is a motor, and the gear transmission mechanism 11 includes several gears for power transmission. The power source is connected to the first gear 32 through the gear transmission mechanism 11. That is, the power source outputs power to the drive shaft 31 through the gear transmission mechanism 11 and the first gear 32. The cutter holder 33 is used to mount the cutter disc 34 and includes a base plate 331, a cover plate 332, and a second screw 333. The base plate 331 is mounted on the end of the drive shaft 31 opposite to the first gear 32 by fasteners, and the cover plate 332 is mounted on the base plate 331 by second screws 333. The cutter head 34 is clamped between the base plate 331 and the cover plate 332, and the cutter head 34 is clamped by the cover plate 332 and the base plate 331 to achieve the installation of the cutter head 34. Correspondingly, the center of the cutter head 34 is provided with a through hole for the second screw 333 to pass through. When the drive shaft 31 rotates, the drive shaft 31 drives the cutter holder 33 to rotate synchronously, thereby driving the cutter head 34 to rotate. The cutter holder 33 is detachably connected to the drive shaft 31 by fasteners, and the cutter head 34 is detachably connected to the cutter holder 33 by the second screws 333, so that the cutter head 34 can be easily disassembled and replaced when it is damaged. The protective cover 35 surrounds the cutter head 34 and the cutter holder 33, and the protective cover 35 is mounted on the bearing seat 36 by easily removable components such as clamps and fasteners. Since the grinding wheel 41 abuts against the cutter head 34, the protective cover 35 is provided with a clearance hole for the grinding wheel 41 to pass through.

[0030] The hardness value of the first gear 32 is lower than that of the gear in the gear transmission mechanism 11. For example, the first gear 32 is made of PEEK (polyetheretherketone), while the gear in the gear transmission mechanism 11 is made of 45# steel. Because the first gear 32 has a relatively low material hardness, it will be the first to fail in the event of a jam or cut, reducing the risk of damage to other gears used for transmission in the filter rod cutting device. During maintenance, the cutting assembly 3 can be disassembled for repair, thus reducing the scope of disassembly and maintenance and lowering the difficulty of repair.

[0031] The grinding assembly 4 includes a grinding wheel 41, a bracket 42, and a drive component 43. The grinding wheel 41 is mounted on the bracket 42, and the drive component 43 is connected to the bracket 42. The drive component 43 is used to drive the grinding wheel 41 closer to or further away from the cutter head 34. Friction between the grinding wheel 41 and the cutter head 34 causes wear on the grinding wheel 41. By driving the grinding wheel 41 closer to the cutter head 34 through the drive component 43, the position of the grinding wheel 41 is adjusted to ensure that the grinding wheel 41 maintains a contact state with the cutter head 34. The bracket 42 and the drive component 43 are movably connected by fasteners, so that the angle of the bracket 42 can be adjusted so that the grinding wheel 41 can contact the cutter head 34 at a suitable angle. In this embodiment, the drive component 43 includes a housing 431, a rotating shaft 432, a telescopic shaft 433, a handwheel 434, a spring 435, and a key 436. The housing 431 has a cylindrical structure and is mounted on the quick-release base 2 by a support component. A telescopic shaft 433 passes through the housing 431, and is located at one end of the housing 431 near the support 42. One end of the telescopic shaft 433 extends to the outside of the housing 431 and connects to the support 42. The telescopic shaft 433 is slidably connected to the inner wall of the housing 431, allowing it to telescopically extend relative to the housing 431. A key 436 is provided between the telescopic shaft 433 and the housing 431, restricting the telescopic shaft 433 from rotating within the housing 431. That is, the telescopic shaft 433 can only telescopically extend along the axial direction of the housing 431. A rotating shaft 432 is rotatably mounted on the housing 431, allowing it to rotate relative to the housing 431. A limiting structure is provided between the rotating shaft 432 and the housing 431, restricting the rotating shaft 432 from rotating along the axial direction of the housing 431, i.e., limiting its rotation relative to the housing 431. One end of the rotating shaft 432 is inserted into the housing 431 and threadedly connected to the telescopic shaft 433. The other end of the rotating shaft 432 extends to the outside of the housing 431 and is connected to the handwheel 434. By rotating the handwheel 434, the telescopic shaft 433 is driven to extend and retract under the action of the threaded connection, ultimately driving the grinding wheel 41 to move closer to or away from the cutter head 34. A spring 435 is disposed between the rotating shaft 432 and the telescopic shaft 433. Under the elastic force of the spring 435, the thread between the rotating shaft 432 and the telescopic shaft 433 is always in a meshed state, ensuring timely adjustment response. Of course, in other embodiments, the driving component 43 can also be set as a linear motor, which directly drives the support 42 to move through electric control.

[0032] Specifically, refer to Figure 1As shown, the protective cover 35 includes a cover body and a first connector 351 and a second connector 352 disposed on the cover body. The cover body covers the periphery of the cutter head 34. The first connector 351 is used for threaded connection with the cooling assembly 5, and correspondingly, the first connector 351 is provided with a threaded hole for installing the cooling assembly 5. The cutter head 34 has two contact positions with other components, one contact position for contacting the grinding wheel 41, and the other contact position for contacting the filter rod on the cutting station 9. Along the rotation direction of the cutter head 34, the first connector 351 is located downstream of the grinding wheel 41 and upstream of the cutting station 9. Taking a reference point in the edge area of ​​the cutter head 34 as an example, during the cutting operation, after the reference point cuts the filter rod, it rotates to the position of the grinding wheel 41 for grinding. After grinding, it rotates to the first connector 351. The cooling gas blown by the first connector 351 can cool the reference point and clean any adhering foreign matter. The reference point continues to rotate to the cutting station 9 for cutting. At this point, the low temperature, clean surface, and sharp blade at the reference point improve the cutting quality of the filter rod. The second connector 352 is used for threaded connection with the dust removal assembly 6; correspondingly, the second connector 352 has threaded holes for installing the dust removal assembly 6. The first connector 351 is located above the protective cover 35, and the second connector 352 is located below the protective cover 35. The cooling gas sprayed from the first connector 351 dissipates heat from the cutter head 34 while also carrying foreign objects from inside the protective cover 35 downwards. Subsequently, the dust-laden gas inside the protective cover 35 is discharged through the second connector 352.

[0033] A gas flow channel is provided inside the first connector 351, and the cooling gas output from the cooling assembly 5 is blown into the protective cover 35 through the gas flow. The gas flow channel is radially inclined relative to the cutter head 34, and the blowing direction of the gas flow channel is opposite to the rotation direction of the cutter head 34. This structure can use the cooling gas to blow foreign objects away from the filter rod, thereby reducing the risk of foreign objects adhering to the filter rod.

[0034] Specifically, refer to Figure 4 and Figure 5As shown, the dust removal assembly 6 includes a negative pressure generator 61 and a dust removal pipe. The negative pressure generator 61 includes a gas inlet 611, a gas outlet 613, and a negative pressure end 612 that are interconnected. The gas inlet 611 is connected to the gas source 10 through the dust removal pipe, and the gas source 10 is used to input compressed air into the negative pressure generator 61. The negative pressure end 612 and the gas outlet 613 are located at opposite ends of the negative pressure generator 61, and the negative pressure end 612 and the gas outlet 613 are coaxial. The negative pressure end 612 is connected to the second connector 352 through the dust removal pipe. The gas outlet 613 is connected to the discharge pipe. After the compressed gas enters the negative pressure generator 61, it is ejected from the gas outlet 613. Under the entrainment effect of the airflow, the negative pressure end 612 generates a negative pressure to draw the dust-laden gas in the protective cover 35 into the negative pressure generator 61, and the dust-laden gas is finally output to the discharge pipe. The working principle of the negative pressure generator 61 is existing technology, and the principle of generating negative pressure by the negative pressure generator 61 will not be elaborated here.

[0035] Specifically, refer to Figure 4 and Figure 6 As shown, the cooling assembly 5 includes a vortex tube 51 and a cooling pipe. The vortex tube 51 contains a vortex chamber 510, and its outer wall has an inlet end 511, a cold air outlet end 512, and a hot air outlet end 513. The inlet end 511 communicates with the vortex chamber 510 and is connected to an air source 10 via the cooling pipe. The air source 10 is used to input compressed air into the vortex chamber 510. Both the cold air outlet end 512 and the hot air outlet end 513 are connected to the vortex chamber 510, and are coaxial. The cold air outlet end 512 is connected to a first connector 351 via the cooling pipe, and the hot air outlet end 513 is used to connect to a discharge pipe. When compressed air enters the vortex chamber 510, it forms a free vortex, with the rotational angular velocity of the free vortex increasing closer to the center. Due to the different angular velocities, friction occurs between the layers of the vortex. The airflow angular velocity is highest in the central part, and friction transfers energy to the outer airflow with lower angular velocity. Part of the airflow in the central layer loses energy, its kinetic energy decreases, and its temperature drops. This energy is then led out through the orifice plate in the center of the vortex tube 51 to the cold gas outlet 512, thus generating cooling gas. This cooling gas is input into the protective cover 35 to dissipate heat from the cutter head 34. The airflow in the outer part gains energy, its kinetic energy increases, and its temperature rises, forming a hot airflow. This hot airflow is input into the exhaust pipe through the hot gas outlet 513.

[0036] In this embodiment, the entire filter rod cutting device is integrated into the filling machine. The filling machine also includes a cigarette input device, a filter rod input device, a cigarette conveying device, and a cigarette bonding device. The cutting station 9 is located on the filling machine, where the filter rod cutting device is used to cut the filter rod to form two finished cigarettes.

[0037] The beneficial effects of this embodiment are as follows: By setting up the grinding assembly 4, the grinding wheel 41 abuts against the cutter head 34. During the rotation of the cutter head 34, the grinding wheel 41 can continuously grind the cutter head 34 to ensure the sharpness of the cutting edge, so that the cutter head 34 can reliably cut the filter rod and avoid jamming or chipping. By setting up the cooling assembly 5, the cooling gas is used to cool the cutter head 34. The heat generated by the cutter head 34 during the cutting operation and the friction with the grinding wheel 41 can be dissipated in time, preventing the cutter head 34 from affecting the cutting quality due to excessive temperature. By setting up the dust removal assembly 6, the dust, glue residue and other foreign objects generated when cutting the filter rod, as well as the foreign objects generated when the grinding wheel 41 is grinding, can be sucked away by the dust removal assembly 6 with the gas in time, preventing the cutter head 34 from being affected by a large amount of foreign objects adhering to it. Therefore, with the combined action of the grinding assembly 4, cooling assembly 5, and dust removal assembly 6, the cutter disc 34 can smoothly cut the filter rod, avoiding jamming, chipping, and damage to transmission components, thus reducing maintenance costs and improving cigarette production efficiency. Simultaneously, by detachably installing a quick-release base 2 on the main frame 1 and mounting the cutting assembly 3 on it, maintenance personnel can quickly remove the cutting assembly 3 from the main frame 1 in case of component damage, reducing the disassembly range of the entire filter rod cutting device, thus reducing maintenance difficulty and time. Therefore, the combined action of the grinding assembly 4, cooling assembly 5, and dust removal assembly 6 helps reduce the failure rate of the cutting assembly 3, shorten maintenance time, and ultimately improve cigarette production efficiency. During maintenance, the quick-release base 2 can be directly disassembled, facilitating disassembly, reducing the disassembly range, and lowering disassembly difficulty.

[0038] Although embodiments of the invention have been described above with reference to the accompanying drawings, the invention is not limited to the above embodiments, but can be made in various forms, and those skilled in the art will understand that the invention can be implemented in other specific forms without changing the technical spirit or essential characteristics of the invention. Therefore, it should be understood that the above embodiments are exemplary in all respects and not restrictive.

Claims

1. A filter rod cutting device, characterized in that, The assembly includes a main frame (1), a quick-release base (2), a cutting assembly (3), a grinding assembly (4), a cooling assembly (5), and a dust removal assembly (6). The quick-release base (2) is detachably connected to the main frame (1). The cutting assembly (3) includes a cutter disc (34) for cutting filter rods and a protective cover (35) surrounding the cutter disc (34). The cutter disc (34) is rotatably mounted on the quick-release base (2). The grinding assembly (4) is mounted on the quick-release base (2) and includes a grinding wheel (41) that abuts against the cutting edge on the cutter disc (34). The cooling assembly (5) and the dust removal assembly (6) are both connected to the protective cover (35). The cooling assembly (5) is used to spray cooling gas into the protective cover (35), and the dust removal assembly (6) is used to absorb dust-laden gas inside the protective cover (35).

2. The filter rod cutting device according to claim 1, characterized in that, The quick-release base (2) is connected to the main frame (1) by a first screw (7). The quick-release base (2) is provided with a screw hole (21) for disassembly. The connection between the quick-release base (2) and the main frame (1) is provided with a disassembly groove for inserting disassembly tools.

3. The filter rod cutting device according to claim 1, characterized in that, The cutting assembly (3) further includes a bearing seat (36), a drive shaft (31), and a blade holder (33). The bearing seat (36) is disposed on the quick-release base (2). The drive shaft (31) is rotatably disposed on the bearing seat (36). The blade holder (33) is detachably connected to the drive shaft (31). The blade disc (34) is detachably disposed on the blade holder (33). The protective cover (35) is mounted on the bearing seat (36).

4. The filter rod cutting device according to claim 3, characterized in that, The main frame (1) is provided with a power source and a gear transmission mechanism (11). A first gear (32) is provided on the transmission shaft (31). The power source is connected to the first gear (32) through the gear transmission mechanism (11). The hardness value of the first gear (32) is less than the hardness value of the gear in the gear transmission mechanism (11).

5. The filter rod cutting device according to claim 1, characterized in that, The grinding assembly (4) further includes a drive (43) and a bracket (42), the grinding wheel (41) is mounted on the bracket (42), the drive (43) is connected to the bracket (42), and the drive (43) is used to drive the grinding wheel (41) to move closer to or away from the cutter head (34).

6. The filter rod cutting device according to claim 5, characterized in that, The drive unit (43) includes a housing (431), a rotating shaft (432), a telescopic shaft (433), and a handwheel (434). The housing (431) is mounted on the quick-release base (2). The telescopic shaft (433) passes through the housing (431) and is slidably connected to the housing (431). A key (436) for limiting the rotation of the telescopic shaft (433) is provided between the telescopic shaft (433) and the housing (431). The rotating shaft (432) is rotatably mounted on the housing (431). One end of the rotating shaft (432) is threadedly connected to the telescopic shaft (433), and the other end is connected to the handwheel (434). By rotating the handwheel (434), the telescopic shaft (433) is driven to extend and retract relative to the housing (431).

7. The filter rod cutting device according to claim 1, characterized in that, The protective cover (35) includes a first connector (351) and a second connector (352). The first connector (351) is used to be threadedly connected to the cooling assembly (5). The first connector (351) is located above the protective cover (351) along the rotation direction of the cutter head (34). The first connector (351) is located downstream of the grinding wheel (41) and upstream of the cutting station (9). The second connector (352) is used to be threadedly connected to the dust removal assembly (6). The second connector (352) is located below the protective cover (35).

8. The filter rod cutting device according to claim 7, characterized in that, The first connector (351) is provided with a gas flow channel for blowing the cooling gas, and the blowing direction of the gas flow channel is opposite to the rotation direction of the cutter head (34).

9. The filter rod cutting device according to claim 7, characterized in that, The cooling assembly (5) includes a vortex tube (51) and a cooling pipe. The vortex tube (51) has a vortex chamber (510) inside. The outer wall of the vortex tube (51) is provided with an inlet end (511), a cold air outlet end (512) and a hot air outlet end (513) communicating with the vortex chamber (510). The inlet end (511) is connected to the air source (10) through the cooling pipe. The air source (10) is used to input compressed air into the vortex chamber (510). The cold air outlet end (512) is connected to the first connector (351) through the cooling pipe. The hot air outlet end (513) is used to connect to the discharge pipe.

10. The filter rod cutting device according to claim 7, characterized in that, The dust removal assembly (6) includes a negative pressure generator (61) and a dust removal pipe. The negative pressure generator (61) includes a gas inlet (611), a gas outlet (613), and a negative pressure end (612). The gas inlet (611) is connected to a gas source (10) through the dust removal pipe. The gas source (10) is used to input compressed air into the negative pressure generator (61). The negative pressure end (612) is connected to the second connector (352) through the dust removal pipe. The gas outlet (613) is used to connect to the discharge pipe.

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