A cleaning device for cigarette filter rod cutting

Abstract

The application discloses a cleaning device for cigarette filter rod cutting, and belongs to the technical field of tobacco machines. The device comprises a cleaning mechanism, two spades arranged on both sides of the cutting edge of a circular blade, and a dust suction assembly; the dust suction assembly is used for sucking away the glue dirt and debris scraped by the spades; and a refrigeration mechanism is used for spraying low-temperature airflow to the spades to realize cooling. The application can solve the problems of stickiness, color mixing and uneven cutting edge caused by high temperature of the blade during the cutting of cigarette filter rods, and improve product quality and equipment operation efficiency.

Description

Technical Field

[0001] This application belongs to the field of tobacco machinery technology, and specifically relates to a cleaning device for cutting cigarette filter rods. Background Technology

[0002] The cigarette making machine is a core piece of equipment in cigarette production. It uses high-speed rotating circular blades to cut double-length filter cigarettes into single-length finished products. During the high-speed cutting process, the blades and filter rods (filter bars) experience intense friction, causing the blade temperature to rise significantly. This high temperature softens and melts the hot melt adhesive pre-coated inside the filter rods, producing a viscous liquid. This liquid, when mixed with tobacco debris and filter fiber powder, easily adheres to the cutting surface and sides of the blades, forming a difficult-to-remove adhesive residue.

[0003] The accumulation of glue residue can lead to a series of quality problems: First, it increases the effective thickness of the blade, resulting in increased cutting resistance and causing burrs, unevenness, and even stringing at the cut end of the cigarette filter, seriously affecting the product's appearance quality; second, the colored tipping paper pigment adhering to the blade can transfer to the cut ends of other cigarettes, causing "color bleeding" quality defects; finally, the sticking to the blade and glue accumulation can interfere with the stability of cutting, potentially reducing equipment operating efficiency or even forcing a shutdown for cleaning, affecting production efficiency and wasting raw and auxiliary materials.

[0004] Currently, the industry mainly adopts the following methods to solve this problem: First, periodic shutdowns are used for manual blade cleaning by operators, which reduces the effective operating rate of the equipment; second, friction components such as felt or cleaning pads are installed on the equipment, and online cleaning is performed by applying lubricating oil or direct scraping, as disclosed in Chinese patents CN219633947U and CN219679742U. However, these methods have obvious shortcomings: felt cleaning is passive and has limited effectiveness in removing stubborn grime, and the lubricating oil may contaminate cigarettes; while simple mechanical scraping is ineffective if there is poor contact with the blade, and excessive contact may damage the blade or cause the blade to overheat. Utility Model Content

[0005] The purpose of this application is to provide a cleaning device for cutting cigarette filter rods. This addresses the problems mentioned in the background art, such as blade sticking, adhesive buildup, color bleeding, and cut quality defects caused by the melting of hot melt adhesive due to the increased temperature during blade cutting.

[0006] To achieve the above objectives, this application adopts the following technical solution: A cleaning device for cutting cigarette filter rods, comprising: The cleaning mechanism includes two scrapers positioned on either side of the circular blade's edge, and a vacuuming assembly; The vacuuming assembly is used to suck away the glue residue and debris scraped off by the scraper; The cooling mechanism is used to spray a low-temperature airflow onto the blade to achieve cooling.

[0007] In one possible implementation, the airflow outlet of the cooling mechanism corresponds to the position of the two scrapers, and both are directed toward the area to be cleaned by the circular blade.

[0008] In one possible implementation, the refrigeration mechanism includes a vortex tube, a compressed air source interface connected to the vortex tube, and a cold air nozzle for directing the cold airflow generated by the vortex tube to the shovel.

[0009] In one possible implementation, a flow regulating valve is provided between the vortex tube and the cold air nozzle.

[0010] In one possible implementation, the blade is made of polytetrafluoroethylene, ultra-high molecular weight polyethylene, or a copper-based alloy.

[0011] In one possible implementation, the cleaning mechanism further includes a sealed protective cover; The shape of the sealed protective cover is adapted to part of the outer circular surface of the circular blade to form a semi-closed or fully closed dust collection chamber.

[0012] In one possible implementation, the vacuuming assembly includes a vacuum nozzle mounted on a sealed cover, a negative pressure generator that provides suction power, and a flexible hose with its two ends connected to the vacuum nozzle and the negative pressure generator, respectively. The flexible hose is used to transport the grime and debris sucked in by the vacuum nozzle.

[0013] In one possible implementation, the inner wall of the sealed cover is provided with an anti-stick coating.

[0014] In one possible implementation, the cleaning mechanism further includes two swing arm mechanisms; The two shovel blades are respectively mounted on the ends of the two swing arm mechanisms via elastic components, so that the cutting edges of the two shovel blades can be elastically pressed against the side of the circular blade.

[0015] In one possible implementation, the elastic component is a spring; One end of the spring is connected to the mounting base of the shovel blade, and the other end is connected to the swing arm mechanism, providing a constant clamping force to the shovel blade toward the circular blade.

[0016] Compared with the prior art, this application has the following beneficial effects: This application provides a cleaning device for cutting cigarette filter rods. By setting scrapers on both sides of the circular blade, it can actively scrape off the glue residue and debris on the blade surface, solving the problem of incomplete cleaning by traditional cleaning methods. At the same time, the refrigeration mechanism has both low-temperature cooling and negative pressure dust collection functions. It can inhibit the melting of hot melt adhesive through low-temperature airflow, reducing the phenomenon of sticking to the blade from the source, and can also remove scraped-off impurities in time to avoid secondary pollution. This effectively improves the flatness of the cut when cutting cigarette filter rods, reduces the product quality defect rate, and ensures the continuous and stable operation of the equipment.

[0017] In one possible implementation, by precisely aligning the airflow outlet of the cooling mechanism with the blade position and optimizing the spray direction and parameters, the low-temperature airflow can directly and efficiently act on the area to be cleaned by the blade, maximizing the cooling effect and further reducing the amount of hot melt adhesive melted. At the same time, it avoids the splashing of impurities caused by airflow impact. Combined with the negative pressure dust collection function, it greatly improves cleaning efficiency, ensures that the blade is always in a clean and low-temperature state, effectively extends the blade's service life, and reduces the frequency of equipment maintenance.

[0018] In one possible implementation, the enclosed protective cover forms a semi-enclosed dust collection chamber, confining impurities to a specific area. This significantly reduces the likelihood of impurities splashing onto other parts of the equipment or the production environment, thus reducing equipment contamination and cleaning difficulty. The transparent material allows operators to observe the internal cleanliness status in real time and promptly identify problems. The sealing design of the rubber sealing strip further enhances the dust collection effect. Combined with negative pressure dust collection, this makes impurities collected more thoroughly, effectively improving the production environment and reducing cigarette quality defects caused by impurities.

[0019] In one possible implementation, a stainless steel spring is selected as the elastic component. It has good elasticity and corrosion resistance, a long service life, and can provide a constant clamping force to the blade, ensuring that the blade is always in close contact with the shovel blade, thus improving the cleaning effect. The bolt adjustment design can adjust the clamping force according to the actual working conditions, avoiding excessive clamping force that damages the blade or insufficient clamping force that leads to incomplete cleaning. The combination of the protective sleeve and the guide structure ensures the stability of the spring performance and the precision of the blade movement, further improving the reliability and adaptability of the equipment. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a cleaning device for cutting cigarette filter rods provided in this application; Figure 2 Another perspective schematic diagram of a cleaning device for cutting cigarette filter rods provided in this application; Figure 3 This is a partial schematic diagram of a cleaning device for cutting cigarette filter rods, provided in this application.

[0021] Figure 4This application provides a schematic diagram of a cleaning device and a vacuum nozzle for cutting cigarette filter rods.

[0022] The attached diagram is labeled as follows: 1. Refrigeration mechanism; 2. Cleaning mechanism; 3. Circular blade; 4. Scraper; 5. Sealed protective cover; 6. Vortex tube; 7. Cold air nozzle; 8. Swing arm mechanism; 9. Mounting base; 10. Dust suction nozzle. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0024] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] 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.

[0027] In this application, 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 being 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 being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, this application discloses a cleaning device for cutting cigarette filter rods, which may include a cooling mechanism 1 and a cleaning mechanism 2.

[0030] The cleaning mechanism 2 may include two scrapers 4 disposed on both sides of the blade of the circular blade 3, and a vacuuming assembly that can suck away the glue residue and debris scraped off by the scrapers 4.

[0031] The cleaning mechanism 2 is designed around the circular blade 3. Two scrapers 4 are symmetrically arranged on both sides of the blade of the circular blade 3. The cutting edge of the scraper 4 forms an angle of 30°-45° with the side of the circular blade 3. This angle can ensure that the scraper 4 can efficiently scrape off the glue and debris on the surface of the blade without damaging the blade.

[0032] Furthermore, the length of the scraper 4 is matched with the effective cutting width of the circular blade 3, ensuring that the entire cutting area of ​​the blade can be covered and cleaned.

[0033] The refrigeration mechanism 1 is used to spray low-temperature airflow onto the blade 4. The airflow outlet of the refrigeration mechanism 1 is aligned with the blade 4 to ensure that the low-temperature airflow covers the cooling point in the middle of the blade 4.

[0034] Optionally, the refrigeration unit 1 integrates a cooling function. Its cold air output end is connected to two nozzles next to the two scrapers 4 through pipes. The nozzles are directed toward the area to be cleaned on the round blades 3. Before the scrapers 4 scrape off the glue residue, they spray a low-temperature airflow of 0-5°C onto the blades to quickly reduce the blade temperature and prevent the hot melt adhesive from continuing to melt.

[0035] In this embodiment, by setting scrapers 4 on both sides of the blade of the circular blade 3, the glue residue and debris on the blade surface are actively scraped off, solving the problem of incomplete cleaning by traditional cleaning methods. At the same time, the refrigeration mechanism has a low-temperature cooling function, which can suppress the melting of hot melt adhesive on the scraper 4 through low-temperature airflow, reducing the sticking phenomenon from the source. It can also remove scraped impurities in a timely manner through the dust collection component, avoiding secondary pollution. This effectively improves the flatness of the cut of the cigarette holder rod, reduces the product quality defect rate, and ensures the continuous and stable operation of the equipment.

[0036] In one possible embodiment, the airflow outlet of the cooling mechanism 1 corresponds to the position of the two scrapers 4, and both face the area to be cleaned by the circular blade 3.

[0037] Optionally, the two scrapers 4 are located on the upper and lower sides of the blade of the circular blade 3, respectively. The cooling mechanism 1 is provided with two airflow outlets. The horizontal distance between the upper airflow outlet and the upper scraper 4 is 5-8cm, and the horizontal distance between the lower airflow outlet and the lower scraper 4 is also 5-8cm, to ensure that the airflow can directly act on the contact area between the scraper 4 and the blade.

[0038] Furthermore, the jet direction of both air outlets is at a 15° angle to the tangent direction of the circular blade 3, and both are directed toward the area to be cleaned by the circular blade 3. This angle design allows the low-temperature airflow to cover the area to be cleaned while avoiding airflow impact that causes glue residue and debris to splash, thus improving the synergistic effect of cooling and dust collection.

[0039] Optionally, the diameter of the airflow outlet is 2-3 cm to ensure that the low-temperature airflow has sufficient velocity and concentration to quickly reduce the local temperature of the blade.

[0040] In this embodiment, by precisely aligning the airflow outlet of the cooling mechanism 1 with the position of the scraper 4 and optimizing the spray direction and parameters, the low-temperature airflow can directly and efficiently act on the area to be cleaned by the blade, maximizing the cooling effect and further reducing the amount of hot melt adhesive melted; at the same time, it avoids the splashing of impurities caused by airflow impact, and with the negative pressure dust collection function, it greatly improves the cleaning efficiency, ensures that the blade is always in a clean and low-temperature state, effectively extends the blade's service life, and reduces the frequency of equipment maintenance.

[0041] In one possible embodiment, the refrigeration mechanism 1 includes a vortex tube 6, a compressed air source interface connected to the vortex tube 6, and a cold air nozzle 7 for guiding the cold airflow generated by the vortex tube 6 to the shovel 4.

[0042] The refrigeration mechanism 1 uses a scroll tube 6 as the core refrigeration component. The scroll tube 6 is made of stainless steel with a diameter of 20-30mm, which has the characteristics of small size, no rotating parts, and low maintenance cost.

[0043] One end of the vortex tube 6 is connected to a compressed air source interface. This interface uses a standard quick-connect fitting, which can be quickly connected to the existing compressed air pipelines in the cigarette factory, making installation and replacement convenient.

[0044] The cold air output end of the vortex tube 6 is connected to a cold air nozzle 7. The cold air nozzle 7 is connected to the vortex tube 6 through a metal bellows, and the position and angle of the nozzle can be flexibly adjusted.

[0045] Furthermore, the outlet of the cold air nozzle 7 is equipped with a flow guiding structure, which can concentrate the cold airflow generated by the vortex tube 6 to the contact area between the scraper 4 and the circular blade 3, ensuring that the cold airflow accurately covers the area to be cleaned.

[0046] Optionally, the hot gas outlet of the vortex tube 6 is connected to an exhaust pipe to vent the generated hot gas outside the equipment, thus preventing the hot gas from affecting the internal temperature environment of the equipment.

[0047] In this embodiment, a vortex tube 6 is used as the core cooling component, eliminating the need for electric drive and refrigerant addition. This meets the requirements of long-term continuous production in cigarette factories, reducing equipment operating energy consumption and maintenance costs. The standard quick-connect design facilitates integration with existing equipment, shortening the installation cycle. The cold air nozzle 7 connected by the metal corrugated pipe can be flexibly adjusted to ensure that the cold airflow accurately acts on the target area, improving the targeting of cooling and effectively solving the problem of blade sticking caused by high temperature, thus ensuring a stable cutting process.

[0048] In one possible embodiment, the flow regulating valve is installed on the pipe between the vortex tube 6 and the cold air nozzle 7. The valve is a manually adjustable needle valve with a brass body, which has good sealing performance and corrosion resistance.

[0049] The valve is marked with a scale range of 0-10, corresponding to a cold air flow rate of 0-50L / min. The operator can adjust the flow rate by rotating the valve handle according to the actual temperature of the blade and the degree of blade sticking.

[0050] Optionally, the flow regulating valve is connected to the pipeline by a thread and sealed with PTFE tape to prevent air leakage and ensure that all the cold air can be delivered to the nozzle.

[0051] In this embodiment, the flow regulating valve allows operators to flexibly adjust the flow rate of the cold airflow according to the actual production situation, ensuring the cooling effect while avoiding energy waste; the pressure gauge provides real-time feedback on the airflow pressure, helping operators to accurately control the adjustment parameters and ensure that the refrigeration mechanism 1 is always in the optimal working state; the good sealing design prevents airflow leakage, improves refrigeration efficiency, further ensures the stability of the blade temperature, and reduces product quality fluctuations caused by temperature fluctuations.

[0052] In one possible embodiment, the shovel 4 is made of polytetrafluoroethylene, ultra-high molecular weight polyethylene, or a copper-based alloy.

[0053] Specifically: Option 1: The scraper 4 is made of polytetrafluoroethylene (PTFE), which has excellent wear resistance and low coefficient of friction. Its smooth surface makes it difficult for glue residue to adhere to the scraper 4 and will not scratch the blade of the circular blade 3. The cutting edge of the PTFE scraper 4 is polished to ensure efficient removal of glue residue.

[0054] Option 2: The scraper blade 4 is made of ultra-high molecular weight polyethylene, which has high impact strength and wear resistance, long service life, and is suitable for scenarios with high cutting frequency and large amount of glue residue.

[0055] Option 3: The scraper 4 is made of copper-based alloy, which has good thermal conductivity and can quickly dissipate the heat transferred by the circular blade 3 to help cool it down; the cutting edge of the copper-based alloy scraper 4 is hardened to improve hardness and wear resistance, making it suitable for working conditions with high blade temperatures.

[0056] Furthermore, all three types of blades 4 are detachably mounted on the mounting base 9 using bolts, making them easy to replace after wear.

[0057] In this embodiment, by providing a variety of materials for the scraper blade 4, it can be flexibly matched according to the actual working conditions such as the material of the cigarette filter rod and the cutting frequency, thereby improving the applicability of the equipment. Polytetrafluoroethylene and ultra-high molecular weight polyethylene materials can avoid scratching the blade, while copper-based alloy materials can assist in cooling. The complementary advantages of different materials not only ensure the cleaning effect but also protect the blade, extend the service life of the scraper blade 4 and the blade, and reduce the replacement cost of spare parts.

[0058] In one possible embodiment, the cleaning mechanism 2 also includes a sealed cover 5.

[0059] The shape of the sealed cover 5 is adapted to part of the outer circular surface of the circular blade 3 to form a semi-closed or fully closed dust collection chamber.

[0060] The sealed protective cover 5 can be made of transparent polycarbonate material with a thickness of 5-8mm, which has sufficient strength and allows operators to easily observe the internal cleaning status.

[0061] The shape of the sealed cover 5 is adapted to part of the outer circular surface of the circular blade 3 to form a semi-closed dust collection chamber. The sealed cover 5 covers the circular blade 3 at an angle of 120°-150° to ensure that the area where the scraper 4 scrapes off impurities is completely surrounded.

[0062] The sealed cover 5 is divided into two parts. One part is set on the support seat of the circular blade, and the other part is connected by a hinge. The two parts can be fixed by bolts. The sealed cover 5 has an opening on one side, and the size of the opening matches the feed and discharge channels of the circular blade 3, which ensures normal feeding of the nozzle bar while reducing the escape of impurities from the opening.

[0063] In this embodiment, the sealed cover 5 forms a semi-enclosed dust collection chamber, confining impurities to a specific area, significantly reducing the likelihood of impurities splashing onto other parts of the equipment or the production environment, and reducing equipment contamination and cleaning difficulty; the transparent material allows operators to observe the internal cleanliness status in real time and promptly identify problems; the sealing design of the rubber sealing strip further enhances the dust collection effect, and combined with negative pressure dust collection, makes impurities collected more thoroughly, effectively improving the production environment and reducing cigarette quality defects caused by impurities.

[0064] In one possible embodiment, the inner wall of the sealed cover 5 is provided with an anti-stick coating.

[0065] The inner wall of the sealed protective cover 5 is coated with a polytetrafluoroethylene anti-stick coating with a thickness of 0.1-0.2 mm. The coating has a smooth surface and a contact angle greater than 100°, making it difficult for glue residue and debris to adhere to the wall surface.

[0066] The coating is prepared using an electrostatic spraying process, resulting in strong adhesion and a service life of 1-2 years, during which frequent recoating is not required.

[0067] Furthermore, the corners of the inner wall of the sealed protective cover 5 are designed with a rounded transition structure with a radius of 5-8mm to avoid forming right-angle dead corners and prevent impurities from accumulating at the corners.

[0068] Optionally, a guide plate is provided near the dust suction port on the inner wall of the sealed cover 5. The guide plate is inclined at 45° to guide the impurities in the chamber to flow towards the dust suction port and improve the dust suction efficiency.

[0069] In this embodiment, the design of the inner wall anti-stick coating effectively prevents the accumulation of glue residue and debris on the inner wall of the sealed cover 5, avoiding the accumulation of impurities from falling off again and contaminating the blade or cigarette, and reducing the cleaning frequency of the sealed cover 5; the combination of the arc transition structure and the guide plate reduces the dead corners for impurity accumulation, guides impurities to flow quickly to the dust collection interface, improves the impurity collection efficiency, ensures that the dust collection chamber is always clean, and further guarantees the stability of the cutting process and the quality of the cigarette product.

[0070] In one possible embodiment, such as Figure 4As shown, the vacuuming assembly includes a vacuum nozzle 10 opened on a sealed cover 5, a negative pressure generator that provides suction power, and a flexible hose with the vacuum nozzle 10 and the negative pressure generator connected at both ends respectively. The flexible hose is used to transport the grime and debris sucked in by the vacuum nozzle 10.

[0071] Optionally, the suction nozzle 10 can be fixed to the sealed cover 5 with bolts to facilitate covering the area where blade debris is generated.

[0072] The negative pressure generator can be a small negative pressure fan with a power of 150W. It is connected to the suction nozzle 10 through a flexible PVC hose with a diameter of 30mm and a length of 2m. The direction of the hose can be flexibly adjusted according to the layout of the unit. The glue and debris sucked in by the suction nozzle 10 are directly transported to the sealed collection box through the hose.

[0073] In this embodiment, the suction nozzle 10 is mounted on a sealed cover, which can be directly aimed at the point where debris is generated, improving the adsorption efficiency and preventing debris from spreading to other parts of the unit; the flexible hose is adaptable to the installation space of different units without changing the original equipment layout; the negative pressure generator has moderate power, which can meet the adsorption requirements and control energy consumption; the sealed design of the collection box can prevent secondary pollution of the workshop environment by debris, further ensuring the hygiene conditions of production.

[0074] In one possible embodiment, the cleaning mechanism 2 also includes two swing arm mechanisms 8.

[0075] The two shovel blades 4 are respectively mounted on the ends of the two swing arm mechanisms 8 via elastic components, so that the cutting edges of the two shovel blades 4 can be elastically pressed against the side of the circular blade 3.

[0076] The cleaning mechanism 2 is equipped with two swing arm mechanisms 8. The swing arm mechanism 8 is made of L-shaped aluminum alloy, which is lightweight and high-strength. One end is rotatably connected to the equipment frame through a rotating shaft, and can swing flexibly around the rotating shaft.

[0077] Two blades 4 are respectively mounted on the other end of two swing arm mechanisms 8 via elastic components. The swing of the swing arm mechanism 8 can drive the blades 4 to move closer to or away from the circular blade 3.

[0078] Furthermore, the swing arm mechanism 8 is provided with a limiting block, which is located on the side of the swing arm away from the blade 4. The limiting block can limit the swing angle of the swing arm and prevent the blade 4 from excessively contacting the blade due to excessive swing of the swing arm, thus damaging the blade.

[0079] Optionally, a grease filling port is provided at the pivot of the swing arm mechanism 8. Grease is added regularly to ensure that the swing arm swings flexibly and to avoid affecting the fit between the scraper 4 and the blade due to jamming.

[0080] In this embodiment, the cooperation between the swing arm mechanism 8 and the elastic component allows the scraper 4 to be elastically pressed against the side of the circular blade 3, ensuring that the scraper 4 remains in close contact with the blade during high-speed rotation, thus improving the scraping effect. The setting of the limit block prevents excessive contact between the scraper 4 and the blade, protecting the blade edge and extending the blade's service life. The design of the grease filling port ensures that the swing arm swings flexibly, avoiding incomplete cleaning due to mechanism jamming, and further improving the stability and reliability of the equipment operation.

[0081] In one possible embodiment, the elastic component is a spring.

[0082] One end of the spring is connected to the mounting base 9 of the blade 4, and the other end is connected to the swing arm mechanism 8, providing the blade 4 with a constant clamping force toward the circular blade 3.

[0083] The spring is made of stainless steel with a wire diameter of 1.5-2mm, a free length of 50-60mm, and a maximum tensile strength of 20-25mm. Its elasticity can meet the fitting requirements of the scraper 4 and the circular blade 3. One end of the spring is connected to the mounting base 9 of the scraper 4 via a hook. The other end of the spring is fixed to the swing arm mechanism 8 by a bolt. The position of the bolt is adjustable. By adjusting the position of the bolt, the initial tensile length of the spring is changed, thereby adjusting the clamping force of the scraper 4 on the blade.

[0084] Furthermore, a protective sleeve is provided on the outside of the spring. The protective sleeve is made of plastic to prevent the spring from getting contaminated with glue residue and debris during long-term use, which would affect the spring's elasticity.

[0085] Optionally, a guide groove is provided on the mounting base of the blade 4, and a guide block that cooperates with the guide groove is provided on the swing arm mechanism 8 to ensure that the blade 4 moves in a fixed direction under the action of the spring and to ensure the stability of the blade contact.

[0086] In this embodiment, a stainless steel spring is selected as the elastic component, which has good elasticity and corrosion resistance, long service life, and can provide a constant clamping force for the scraper 4, ensuring that the scraper 4 is always in close contact with the blade, thus improving the cleaning effect. The bolt adjustment design can adjust the clamping force according to the actual working conditions, avoiding excessive clamping force that damages the blade or insufficient clamping force that leads to incomplete cleaning. The combination of the protective sleeve and the guide structure ensures the stability of the spring performance and the precise movement of the scraper 4, further improving the reliability and adaptability of the equipment.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cleaning device for cigarette filter rod cutting, characterized in that, include: The cleaning mechanism (2) includes two scrapers (4) set on both sides of the blade of the circular blade (3), and a vacuuming assembly; The vacuuming assembly is used to suck away the glue residue and debris scraped off by the scraper (4); The refrigeration mechanism (1) is used to spray low-temperature airflow onto the blade (4) to achieve cooling.

2. The cleaning device for cigarette rod cutting according to claim 1, wherein, The airflow outlet of the refrigeration mechanism (1) corresponds to the position of the two scrapers (4), and both face the area to be cleaned by the circular blade (3).

3. The cleaning device for cigarette rod cutting according to claim 1, wherein, The refrigeration mechanism (1) includes a vortex tube (6), a compressed air source interface connected to the vortex tube (6), and a cold air nozzle (7) for guiding the cold air flow generated by the vortex tube (6) to the shovel (4).

4. The cleaning device for cigarette rod cutting according to claim 3, wherein, A flow regulating valve is provided between the vortex tube (6) and the cold air nozzle (7).

5. The cleaning device for cigarette rod cutting according to claim 3, wherein, The material of the shovel (4) is polytetrafluoroethylene, ultra-high molecular weight polyethylene or copper-based alloy.

6. The cleaning device for cigarette rod cutting according to claim 1, wherein, The cleaning mechanism (2) also includes a sealed protective cover (5); The shape of the sealed cover (5) is adapted to part of the outer circular surface of the circular blade (3) to form a semi-closed or fully closed dust collection chamber.

7. The cleaning device for cigarette rod cutting according to claim 6, wherein The inner wall of the sealed protective cover (5) is provided with an anti-stick coating.

8. The cleaning device for cigarette rod cutting according to claim 6, wherein, The vacuuming assembly includes a vacuum nozzle (10) mounted on a sealed cover (5), a negative pressure generator that provides suction power, and a flexible hose with its two ends connected to the vacuum nozzle (10) and the negative pressure generator, respectively. The flexible hose is used to transport the grime and debris sucked in by the vacuum nozzle (10).

9. The cleaning device for cigarette rod cutting according to claim 1, wherein, The cleaning mechanism (2) also includes two swing arm mechanisms (8); The two shovels (4) are respectively mounted on the ends of the two swing arm mechanisms (8) via elastic components, so that the cutting edges of the two shovels (4) can be elastically pressed against the side of the circular blade (3).

10. The cleaning device for cigarette rod cutting according to claim 9, wherein, The elastic component is a spring; One end of the spring is connected to the mounting base (9) of the shovel (4), and the other end is connected to the swing arm mechanism (8), providing the shovel (4) with a constant clamping force toward the circular blade (3).

Images