Circular knife self-cleaning device and cigarette making machine

Abstract

The utility model belongs to cigarette equipment cleaning technical field discloses a kind of round knife self-cleaning device and cigarette making machine.Circular knife self-cleaning device is used to clean the round knife on the body of cigarette making machine, including installation unit, drive unit and cleaning unit, installation unit is fixedly connected on the body of cigarette making machine, drive unit is set on installation unit, cleaning unit includes first cleaning assembly and second cleaning assembly, first cleaning assembly and second cleaning assembly are transmission connection in drive unit, along the axial direction of round knife, first cleaning assembly and second cleaning assembly are located at the opposite sides of round knife, drive unit is configured to drive first cleaning assembly and second cleaning assembly to be close to each other, to clean round knife.The round knife self-cleaning device can realize cleaning without stopping, reduce the downtime of cigarette making machine, help to improve production efficiency, improve the synchronism of round knife cleaning at the same time, ensure the stability of round knife cleaning.

Description

Technical Field

[0001] This utility model relates to the field of cigarette equipment cleaning technology, and in particular to a circular knife self-cleaning device and a cigarette machine. Background Technology

[0002] The cutting drum is a crucial component of the ZJ118 cigarette machine during cigarette production. It includes the circular blades, which continuously cut adhesive-containing materials such as filter paper and tipping paper. During cutting, adhesive residue easily adheres to the surface of the circular blades and the gaps between the blades, gradually solidifying over time. This residue buildup causes uneven cutting force, leading to blade chipping or breakage. It also results in burrs, skewing, or length deviations in the filter cutting process. In actual production, the circular blades are typically cleaned manually using a rigid brush or metal scraper during a period of downtime each shift. However, frequent disassembly and reassembly can lead to installation errors, and the hard friction with the blades accelerates wear.

[0003] In related technologies, a circular blade cleaning device is installed on a cigarette rolling machine with a scraper support. Two symmetrically arranged scrapers are mounted on the scraper support, with the two scrapers located on opposite sides of the circular blade along its axial direction. During the operation of the circular blade, the accumulated adhesive adhering to both sides of the circular blade is removed. However, as the scrapers clean, they also wear down. When maintaining and replacing the scrapers, the cigarette rolling machine needs to be stopped, which affects production efficiency. Furthermore, when reinstalling the two scrapers, symmetrical alignment adjustment relative to the circular blade is required. If the adjustment is incorrect, one side of the scraper will wear more severely than the other, affecting the synchronicity of adhesive removal.

[0004] Therefore, there is an urgent need for a circular blade self-cleaning device and a cigarette rolling machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a circular knife self-cleaning device and a cigarette rolling machine. It enables cleaning without stopping the machine, reducing downtime, improving production efficiency, enhancing the synchronization of circular knife cleaning, and ensuring the stability of the cleaning process.

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

[0007] A circular blade self-cleaning device, used to clean the circular blades on the cigarette machine body, includes:

[0008] The mounting unit is fixedly connected to the cigarette machine body;

[0009] A drive unit, wherein the drive unit is disposed on the mounting unit;

[0010] The cleaning unit includes a first cleaning component and a second cleaning component, which are tractively connected to the drive unit. Along the axial direction of the circular blade, the first cleaning component and the second cleaning component are located on opposite sides of the circular blade. The drive unit is configured to drive the first cleaning component and the second cleaning component to move closer to each other to clean the circular blade.

[0011] Preferably, the driving unit includes:

[0012] A first driving member is fixedly and adjustablely connected to the mounting unit, and the output end of the first driving member moves along the radial direction of the circular blade.

[0013] The second driving member is fixedly connected to the output end of the first driving member. The output end of the second driving member is drivenly connected to the first cleaning component and the second cleaning component. The second driving member is configured to drive the first cleaning component and the second cleaning component to move closer to each other.

[0014] Preferably, the circular blade self-cleaning device further includes a control unit, which includes a first delay control component and a second delay control component. The first delay control component includes a first delay element and a first control element. The first delay element is communicatively connected to the start switch of the circular blade, the first control element is connected to the first drive element, and the first control element is electrically connected to the first delay element. The first delay element is used to control the first control element to start synchronously.

[0015] The second delay control component includes a second delay element and a second control element. The second delay element is communicatively connected to the start switch of the circular knife and electrically connected to the first control element. The second delay element is used to receive a preset signal from the start switch and control the start and stop of the first drive element after a preset time period based on the preset signal. The second control element is connected to the second drive element and electrically connected to the second delay element. The second delay element is used to control the synchronous start of the second control element. The second control element is electrically connected to the first delay element, and the first delay element is used to receive a preset signal from the start switch and control the start and stop of the second drive element after a preset time period based on the preset signal.

[0016] Preferably, the first delay element is a first delay relay, the second delay element is a second delay relay, the first control element is a first solenoid valve, and the second control element is a second solenoid valve.

[0017] Preferably, the first cleaning component includes:

[0018] The first cleaning link is fixedly connected to the output end of the drive unit;

[0019] A first cleaning felt is connected to a first cleaning link, and the end face of the first cleaning felt facing the circular knife has a V-shaped tooth structure.

[0020] Preferably, the circular blade self-cleaning device further includes a cooling unit disposed on the cigarette machine body, with the cooling end of the cooling unit facing the circular blade, and the cooling unit configured to blow gas onto the circular blade.

[0021] Preferably, the cooling unit includes:

[0022] The bamboo-joint air tube has its cooling end facing the circular knife;

[0023] A gas source, which is connected to the bamboo-joint air tube, is configured to supply the gas to the bamboo-joint air tube.

[0024] Preferably, the cooling unit further includes a heat insulation component, which is sleeved on the outside of the bamboo-shaped air tube.

[0025] Preferably, the mounting unit includes:

[0026] The mounting bracket is fixedly connected to the cigarette machine body. An adjustment hole is provided at one end of the mounting bracket facing the drive unit, and the adjustment hole extends along the radial direction of the circular blade.

[0027] A fastener passes through the adjustment hole and is connected to the drive unit. The fastener is slidable within the adjustment hole along its extension direction to adjust the relative position of the drive unit and the circular cutter.

[0028] A cigarette rolling machine, comprising a cigarette rolling machine body and a circular blade self-cleaning device as described above, the circular blade self-cleaning device being disposed on the cigarette rolling machine body.

[0029] The beneficial effects of this utility model are:

[0030] This utility model discloses a circular blade self-cleaning device and a cigarette machine. The circular blade self-cleaning device is used to clean the circular blades on the cigarette machine body and includes an installation unit, a drive unit, and a cleaning unit. The installation unit is fixedly connected to the cigarette machine body, and the drive unit is disposed on the installation unit. The cleaning unit includes a first cleaning component and a second cleaning component, which are tractively connected to the drive unit. Along the axial direction of the circular blade, the first cleaning component and the second cleaning component are located on opposite sides of the circular blade. The drive unit is configured to drive the first cleaning component and the second cleaning component to move closer to each other to clean the circular blade.

[0031] When the cigarette machine starts and enters a stable operating state, and the circular blade starts, the drive unit starts and outputs power, driving the first and second cleaning components, located on opposite sides of the circular blade along its axial direction, to approach each other, contact the blade surface, and clean the blade. When cleaning stops, the drive unit stops, causing the first and second cleaning components to move away from each other. This setup allows for non-stop cleaning, reducing downtime and improving production efficiency. Furthermore, when replacing the first or second cleaning component, alignment adjustments relative to the circular blade are not required, improving the synchronization of blade cleaning and ensuring its stability. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the circular knife self-cleaning device provided in an embodiment of this utility model.

[0033] In the picture:

[0034] 1. Mounting unit; 11. Mounting bracket;

[0035] 2. Drive unit; 21. First drive component; 22. Second drive component;

[0036] 3. Cleaning unit; 31. First cleaning assembly; 311. First cleaning link; 312. First cleaning felt; 32. Second cleaning assembly; 321. Second cleaning link; 322. Second cleaning felt;

[0037] 4. Control unit; 41. First delay control component; 411. First control element; 42. Second delay control component; 421. Second control element;

[0038] 5. Cooling unit; 51. Bamboo-joint air duct;

[0039] 10. Circular knife; 20. Start switch. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or 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 utility model according to the specific circumstances.

[0042] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0044] This embodiment provides a circular blade self-cleaning device for cleaning the circular blade 10 on the body of a cigarette rolling machine, such as... Figure 1 As shown, the circular blade self-cleaning device includes an installation unit 1, a drive unit 2, and a cleaning unit 3. The installation unit 1 is fixedly connected to the cigarette machine body, the drive unit 2 is disposed on the installation unit 1, and the cleaning unit 3 includes a first cleaning component 31 and a second cleaning component 32. The first cleaning component 31 and the second cleaning component 32 are tractively connected to the drive unit 2. Along the axial direction of the circular blade 10, the first cleaning component 31 and the second cleaning component 32 are located on opposite sides of the circular blade 10. The drive unit 2 is configured to drive the first cleaning component 31 and the second cleaning component 32 to move closer to each other in order to clean the circular blade 10.

[0045] When the cigarette machine starts and enters a stable operating state, and the circular blade 10 starts, the drive unit 2 starts and outputs power, driving the first cleaning component 31 and the second cleaning component 32, located on opposite sides of the circular blade 10 along the axial direction of the circular blade 10, to approach each other, contact the surface of the circular blade 10, and clean the circular blade 10. When cleaning stops, the drive unit 2 stops, causing the first cleaning component 31 and the second cleaning component 32 to move away from each other. This setup enables non-stop cleaning, reducing downtime of the cigarette machine and helping to improve production efficiency. Furthermore, when replacing the first cleaning component 31 or the second cleaning component 32, no alignment adjustment relative to the circular blade 10 is required, improving the synchronization of the cleaning process and ensuring the stability of the cleaning process.

[0046] Optionally, such as Figure 1 As shown, the drive unit 2 includes a first drive member 21 and a second drive member 22. The first drive member 21 is fixedly and adjustablely connected to the mounting unit 1, and its output end moves along the radial direction of the circular blade 10. The second drive member 22 is fixedly connected to the output end of the first drive member 21, and its output end is connected to a first cleaning component 31 and a second cleaning component 32. The second drive member 22 is configured to drive the first cleaning component 31 and the second cleaning component 32 to move closer to each other. When cleaning the circular blade 10, the first drive member 21 drives the second drive member 22 and the first and second cleaning components 31 and 32 to move towards the circular blade 10 along its radial direction. After the first drive member 21 is in position, the second drive member 22 is activated, driving the first and second cleaning components 31 and 32 to move closer to each other and clean the rotating circular blade 10. This design ensures that the first cleaning component 31 and the second cleaning component 32 are in close contact with the surface of the circular blade 10, removing the adhesive residue from the surface of the circular blade 10 and guaranteeing thorough cleaning. At the same time, it avoids excessive pressure that could cause wear to the circular blade 10. Furthermore, the cleaning process occurs while the circular blade 10 is rotating, and the relative motion allows the cleaning components to quickly peel off impurities from the circular blade 10. Combined with the automated action of the drive unit 2, cleaning can be completed without manual intervention, thus improving cleaning efficiency.

[0047] Specifically, in this embodiment, the first driving component 21 is a slide cylinder, and the second driving component 22 is a double-claw cylinder. In other embodiments, the first driving component 21 is an electric cylinder, and the second driving component 22 is a linear motor, etc. No limitations are imposed here.

[0048] More specifically, buffer pads are provided at both ends of the first driving member 21 along the radial direction of the circular cutter 10. This avoids rigid impact when the first driving member 21 moves to its extreme position, thus extending its service life.

[0049] More specifically, the contact pressure between the first cleaning component 31 and the second cleaning component 32 and the circular blade 10 is 0.3 bar. In other embodiments, the contact pressure between the first cleaning component 31 and the second cleaning component 32 and the circular blade 10 is 0.2 bar, 0.4 bar, 0.5 bar, etc. No limitation is made here.

[0050] Optionally, such as Figure 1 As shown, the circular blade self-cleaning device also includes a control unit 4. The control unit 4 includes a first delay control component 41 and a second delay control component 42. The first delay control component 41 includes a first delay element and a first control element 411. The first delay element is communicatively connected to the start switch 20 of the circular blade 10, and the first control element 411 is connected to the first drive element 21. The first control element 411 is electrically connected to the first delay element, and the first delay element is used to control the synchronous start of the first control element 411. The second delay control component 42 includes a second delay element and a second control element 421. The second delay element is connected to the start switch 20 of the circular blade 10. The communication connection is established with switch 20. The second delay element is electrically connected to the first control element 411. The second delay element receives a preset signal from the start switch 20 and controls the start and stop of the first drive element 21 after a preset time period based on the preset signal. The second control element 421 is connected to the second drive element 22 and electrically connected to the second delay element. The second delay element controls the synchronous start of the second control element 421. The second control element 421 is also electrically connected to the first delay element. The first delay element receives a preset signal from the start switch 20 and controls the start and stop of the second drive element 22 after a preset time period based on the preset signal. Specifically, in this embodiment, the first delay element is a first time-delay relay, the second delay element is a second time-delay relay, the first control element 411 is a first solenoid valve, and the second control element 421 is a second solenoid valve. In other embodiments, the first delay element is a first electronic delay module, the second delay element is a second electronic delay module, the first control element 411 is a first frequency converter, the second control element 421 is a second frequency converter, etc. No limitation is made here. More specifically, the first solenoid valve is a first two-position five-way single-electric control solenoid valve, and the second solenoid valve is a second two-position five-way single-electric control solenoid valve.

[0051] When the operator rotates the start switch 20 to the start position, the circular blade 10 starts running. Simultaneously, the start switch 20 outputs an electrical signal to the first time-delay relay. Upon receiving the signal, the first time-delay relay first energizes the first solenoid valve, activating the slide cylinder. This causes the double-claw cylinder and the first cleaning component 31 and the second cleaning component 32 to move closer to the circular blade 10. After a one-second delay, the first time-delay relay transmits an electrical signal to the double-claw cylinder, energizing it. This causes the first cleaning component 31 and the second cleaning component 32 to move closer together to the side of the cleaning circular blade 10, entering a self-cleaning working state. When the operator rotates the start switch 20... When the circular blade 10 reaches the closed position, it stops operating. Simultaneously, the start switch 20 outputs an electrical signal to the second time-delay relay. Upon receiving the signal, the second time-delay relay first de-energizes the second solenoid valve, causing the double-claw cylinder to retract. This moves the first cleaning component 31 and the second cleaning component 32 away from each other. After a one-second delay, the second time-delay relay transmits a signal to the first solenoid valve, de-energizing it. The slide cylinder moves away from the circular blade 10 radially, causing the double-claw cylinder and the first and second cleaning components 31 and 32 to move away from the area where the circular blade 10 is located. At this point, the circular blade 10 can be replaced or the equipment can be maintained. This design makes the cleaning process logic of the circular blade 10 clear, ensuring precise cleaning action sequence without signal interference. It simplifies the operation process, reduces the learning cost for operators, and achieves seamless integration with existing processes, minimizing equipment redundancy.

[0052] Specifically, a pressure gauge and a pressure regulating valve are connected in series on the air intake pipes of the first solenoid valve and the second solenoid valve, which can finely adjust the air pressure according to the actual cleaning needs. A one-way throttle valve is also set to control the movement speed of the slide cylinder and the double claw cylinder, so as to avoid the first cleaning component 31 and the second cleaning component 32 colliding with the circular knife 10 due to excessively fast movement.

[0053] Specifically, a first signal isolator is connected in series between the output terminal of the start switch 20 and the first time-delay relay, and a second signal isolator is connected in series between the output terminal of the start switch 20 and the second time-delay relay. This prevents the strong electrical signal from the operation of the circular blade 10 from interfering with the control circuit of the circular blade self-cleaning device.

[0054] Specifically, a first overload protection switch is connected in series between the output terminal of the start switch 20 and the first time-delay relay, and a second overload protection switch is connected in series between the output terminal of the start switch 20 and the second time-delay relay. When the air circuit pressure is abnormal or the cylinder is stuck, the overload protection switch automatically cuts off the control signal to prevent equipment damage and ensure control safety.

[0055] Optionally, such as Figure 1As shown, the first cleaning component 31 includes a first cleaning link 311 and a first cleaning felt 312. The first cleaning link 311 is fixedly connected to the output end of the drive unit 2, and the first cleaning felt 312 is connected to the first cleaning link 311. The end face of the first cleaning felt 312 facing the circular blade 10 has a V-shaped tooth structure. The V-shaped tooth structure can conform to the contour of the end face of the circular blade 10, increasing the contact area with the blade surface, and forming a guide channel to quickly scrape away residual chips, dust, or adhesives on the end face of the circular blade 10. At the same time, the cleaning felt is soft, and combined with the scraping method of the V-shaped teeth, it can thoroughly clean without damaging the cutting edge of the circular blade 10, reducing the wear of the circular blade 10. Specifically, in this embodiment, the first cleaning felt 312 is made of polyester fiber. It has both high adsorption and wear resistance, and its service life can reach one month, thereby reducing the later maintenance cost. It should be noted that the first cleaning link 311 is fixedly connected to one of the jaws of the gripper cylinder.

[0056] Specifically, the first cleaning felt 312 is fixed to the first cleaning connecting rod 311 by bolts, and a first silicone gasket is provided on the side of the first cleaning connecting rod 311 facing the first cleaning felt 312. This ensures that the first cleaning felt 312 is stably fixed to the first cleaning connecting rod 311, while avoiding rigid compression of the first cleaning felt 312 by the first cleaning connecting rod 311.

[0057] Specifically, such as Figure 1 As shown, the second cleaning component 32 includes a second cleaning link 321 and a second cleaning felt 322. The second cleaning link 321 is fixedly connected to the output end of the drive unit 2, and the second cleaning felt 322 is connected to the second cleaning link 321. The end face of the second cleaning felt 322 facing the circular blade 10 has a V-shaped tooth structure. The V-shaped tooth structure can conform to the contour of the end face of the circular blade 10, increasing the contact area with the blade surface, and forming a guide channel to quickly scrape away residual chips, dust, or adhesives on the end face of the circular blade 10. At the same time, the cleaning felt is soft, and combined with the scraping method of the V-shaped teeth, it can thoroughly clean without damaging the cutting edge of the circular blade 10, reducing the wear of the circular blade. Specifically, in this embodiment, the first cleaning felt 312 is made of polyester fiber. It has both high adsorption and wear resistance, and its service life can reach one month, thereby reducing the later maintenance cost. It should be noted that the second cleaning link 321 is fixedly connected to the other claw of the gripper cylinder.

[0058] Specifically, the second cleaning felt 322 is fixed to the second cleaning connecting rod 321 by bolts, and a second silicone gasket is provided on the side of the second cleaning connecting rod 321 facing the second cleaning felt 322. This ensures that the second cleaning felt 322 is stably fixed to the second cleaning connecting rod 321, while avoiding rigid compression of the second cleaning felt 322 by the second cleaning connecting rod 321.

[0059] It is worth noting that when the second drive unit 22 is a linear motor, it is connected to the first cleaning felt 312 and the second cleaning felt 322 through a scissor arm-type connecting rod. When the linear motor moves away from the circular blade 10, the two arms of the scissor arm rotate around the rotation axis, causing the first cleaning felt 312 and the second cleaning felt 322 at the other end of the scissor arm to move closer to each other.

[0060] More specifically, both the first cleaning link 311 and the second cleaning link 321 are made of aluminum alloy. In other embodiments, both the first cleaning link 311 and the second cleaning link 321 are made of stainless steel. No limitation is imposed here.

[0061] Optionally, such as Figure 1 As shown, the circular blade self-cleaning device also includes a cooling unit 5, which is installed on the cigarette machine body. The cooling end of the cooling unit 5 faces the circular blade 10, and the cooling unit 5 is configured to blow gas onto the circular blade 10. The cooling unit 5 operates synchronously with the cleaning unit 3. The cooling end of the cooling unit 5 is precisely aligned with the cleaning contact area. By blowing gas onto the circular blade 10, the device can cool the circular blade 10, preventing temperature rise caused by high-speed rotation friction and preventing the glue residue from melting and re-adhering. On the other hand, it blows off glue residue fragments, preventing the accumulation of fragments from affecting the cleaning effect or causing malfunctions inside the equipment. The cleaning unit 3 and the cooling unit 5 form a closed-loop function of "cleaning-cooling-slag removal", ensuring the long-term stable operation of the circular blade self-cleaning device.

[0062] Specifically, such as Figure 1 As shown, the cooling unit 5 includes a bamboo-joint air tube 51 and an air source. The cooling end of the bamboo-joint air tube 51 is positioned towards the circular blade 10. The air source is connected to the bamboo-joint air tube 51 and is configured to supply gas to the bamboo-joint air tube 51. The bamboo-joint air tube 51 allows for omnidirectional rotation in three-dimensional space, enabling real-time adjustment of the blowing area on the end face of the circular blade 10, thereby improving the cooling efficiency of the circular blade 10 and enhancing its adaptability to cleaning debris and residue.

[0063] More specifically, the cooling unit 5 also includes a heat insulation component, which is fitted onto the outside of the bamboo-joint air tube 51. The heat insulation component prevents the airflow temperature from being affected by the environment, ensuring stable cooling performance. It should be noted that in this embodiment, the heat insulation component is heat-insulating cotton. In other embodiments, the heat insulation component is heat-insulating stickers, etc. No limitation is made here.

[0064] Optionally, such as Figure 1As shown, the mounting unit 1 includes a mounting bracket 11 and fasteners. The mounting bracket 11 is fixedly connected to the cigarette machine body. An adjustment hole is provided at one end of the mounting bracket 11 facing the drive unit 2. The adjustment hole extends radially along the circular blade 10. The fastener passes through the adjustment hole and is connected to the drive unit 2. The fastener can slide within the adjustment hole along its extension direction to adjust the relative position of the drive unit 2 and the circular blade 10. This configuration allows for fine-tuning of the position of the drive unit 2 along the radial direction of the circular blade 10 based on its actual position, ensuring the device adapts to installation errors of different cigarette machine bodies. It is worth noting that in this embodiment, the fastener passes through the adjustment hole and is connected to the first drive member 21.

[0065] Specifically, in this embodiment, the mounting bracket 11 is made of aluminum alloy. In other embodiments, the mounting bracket 11 is made of stainless steel, etc. No limitation is made here.

[0066] This embodiment also provides a cigarette rolling machine, which includes a cigarette rolling machine body and a circular blade self-cleaning device, the circular blade self-cleaning device being disposed on the cigarette rolling machine body. By setting the circular blade self-cleaning device, cleaning can be achieved without stopping the machine, reducing the downtime of the cigarette rolling machine and helping to improve production efficiency. At the same time, when replacing the first cleaning component 31 or the second cleaning component 32, it is not necessary to perform centering adjustments relative to the circular blade 10, improving the synchronization of the cleaning of the circular blade 10 and ensuring the stability of the cleaning of the circular blade 10.

[0067] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A circular blade self-cleaning device for cleaning the circular blades (10) on the body of a cigarette rolling machine, characterized in that, include: Installation unit (1), which is fixedly connected to the cigarette machine body; A drive unit (2) is disposed on the mounting unit (1); The cleaning unit (3) includes a first cleaning component (31) and a second cleaning component (32). The first cleaning component (31) and the second cleaning component (32) are tractively connected to the drive unit (2). Along the axial direction of the circular blade (10), the first cleaning component (31) and the second cleaning component (32) are located on opposite sides of the circular blade (10). The drive unit (2) is configured to drive the first cleaning component (31) and the second cleaning component (32) to move closer to each other to clean the circular blade (10).

2. The circular knife self-cleaning device according to claim 1, characterized in that, The driving unit (2) includes: The first driving member (21) is fixedly and adjustablely connected to the mounting unit (1), and the output end of the first driving member (21) moves along the radial direction of the circular knife (10). The second drive member (22) is fixedly connected to the output end of the first drive member (21). The output end of the second drive member (22) is connected to the first cleaning component (31) and the second cleaning component (32). The second drive member (22) is configured to drive the first cleaning component (31) and the second cleaning component (32) to move closer to each other.

3. The circular knife self-cleaning device according to claim 2, characterized in that, The circular blade self-cleaning device also includes a control unit (4), which includes a first delay control component (41) and a second delay control component (42). The first delay control component (41) includes a first delay element and a first control element (411). The first delay element is communicatively connected to the start switch (20) of the circular blade (10). The first control element (411) is connected to the first drive element (21). The first control element (411) is electrically connected to the first delay element. The first delay element is used to control the first control element (411) to start synchronously. The second delay control component (42) includes a second delay element and a second control element (421). The second delay element is communicatively connected to the start switch (20) of the circular knife (10). The second delay element is electrically connected to the first control element (411). The second delay element is used to receive a preset signal from the start switch (20) and control the start and stop of the first drive element (21) after a preset time period based on the preset signal. The second control element (421) is connected to the second drive element (22). The second control element (421) is electrically connected to the second delay element. The second delay element is used to control the second control element (421) to start synchronously. The second control element (421) is electrically connected to the first delay element. The first delay element is used to receive a preset signal from the start switch (20) and control the start and stop of the second drive element (22) after a preset time period based on the preset signal.

4. The circular knife self-cleaning device according to claim 3, characterized in that, The first delay element is a first delay relay, the second delay element is a second delay relay, the first control element (411) is a first solenoid valve, and the second control element (421) is a second solenoid valve.

5. The circular knife self-cleaning device according to claim 1, characterized in that, The first cleaning component (31) includes: The first cleaning link (311) is fixedly connected to the output end of the drive unit (2); The first cleaning felt (312) is connected to the first cleaning link (311), and the end face of the first cleaning felt (312) facing the circular knife (10) is provided with a V-shaped tooth structure.

6. The circular knife self-cleaning device according to any one of claims 1-5, characterized in that, The circular blade self-cleaning device also includes a cooling unit (5), which is disposed on the cigarette machine body. The cooling end of the cooling unit (5) is disposed facing the circular blade (10), and the cooling unit (5) is configured to blow gas onto the circular blade (10).

7. The circular knife self-cleaning device according to claim 6, characterized in that, The cooling unit (5) includes: The bamboo joint air tube (51) is arranged with its cooling end facing the circular knife (10); A gas source is connected to the bamboo joint air tube (51) and is configured to supply the gas to the bamboo joint air tube (51).

8. The circular knife self-cleaning device according to claim 7, characterized in that, The cooling unit (5) also includes a heat insulation component, which is sleeved on the outside of the bamboo joint air tube (51).

9. The circular knife self-cleaning device according to any one of claims 1-5, characterized in that, The installation unit (1) includes: Mounting bracket (11) is fixedly connected to the cigarette machine body. An adjustment hole is provided at one end of the mounting bracket (11) facing the drive unit (2). The adjustment hole extends in the radial direction of the circular knife (10). A fastener, which passes through the adjustment hole and is connected to the drive unit (2), is capable of sliding within the adjustment hole along the extension direction of the adjustment hole to adjust the relative position of the drive unit (2) and the circular cutter (10).

10. A cigarette rolling machine, characterized in that, The cigarette rolling machine includes a cigarette rolling machine body and a circular blade self-cleaning device as described in any one of claims 1-9, wherein the circular blade self-cleaning device is disposed on the cigarette rolling machine body.

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