A cigarette filter rod gluing device

Abstract

The patent discloses a cigarette filter rod gluing device, the cigarette filter rod comprises a paper tape for wrapping filter rod material, the gluing device comprises a rack, a paper guide roller, a glue applying device, a heating plate and a bullet head paper guide wheel, the paper guide roller, the heating plate and the bullet head paper guide wheel are detachably installed in the rack from bottom to top in sequence, the glue applying device is arranged close to the heating plate, and glue liquid is sprayed on the heating plate by the glue applying device during the transmission of the paper tape from the paper guide roller to the bullet head paper guide wheel. Through the arrangement of the paper guide roller, the glue applying device, the heating plate and the bullet head paper guide wheel, the paper tape is prevented from deviating, and the heating link is closely connected with the hot melt glue smearing process.

Description

Technical Field

[0001] This patent belongs to the technical field of cigarette filter rod production equipment, specifically relating to a cigarette filter rod coating device. Background Technology

[0002] In the modern cigarette manufacturing system, the paper tape pressing process, as the core link in cigarette packaging, directly determines the appearance quality and production efficiency of the cigarette products. This process uses a heating plate to provide a constant temperature field, combined with the precision transmission of the guide rollers and bullet-shaped guide wheels, to achieve continuous feeding and positioning of the cigarette paper. Simultaneously, hot melt adhesive nozzles apply adhesive with micron-level precision, and finally, a pressing mechanism forms a tight and stable cigarette wrapping structure. Taking a high-speed cigarette rolling mill as an example, it needs to complete the production of 800-1200 cigarettes per minute, which places stringent requirements on the coordinated stability of all metal components.

[0003] However, existing technology devices require more components to achieve coordinated stability. For example, the device disclosed in Chinese Utility Model Patent CN201919651U, due to the light weight of the paper tape, requires multiple guide rollers to be placed between the gluing device and the heater to prevent the paper tape from deviating in order to maintain its tension stability during transmission. Furthermore, there is still a distance between the paper tape after gluing and the heating position of the heater, which can easily lead to heating too late and affect the application effect of hot melt adhesive. Utility Model Content

[0004] The purpose of this patent is to provide a cigarette filter rod coating device to prevent paper tape deviation and to ensure a close connection between the heating process and the hot melt adhesive application process.

[0005] To solve the above-mentioned technical problems, this patent adopts the following technical solution: A cigarette filter rod coating device is disclosed. The cigarette filter rod includes a paper strip for wrapping the filter rod material. The coating device includes a frame, a guide roller, a coating device, a heating plate, and a bullet-shaped guide roller. The guide roller, heating plate, and bullet-shaped guide roller are detachably installed in the frame from bottom to top. The coating device is arranged close to the heating plate. During the process of the paper strip being transported from the guide roller to the bullet-shaped guide roller, the coating device sprays adhesive onto the heating plate.

[0006] Furthermore, the angle between the center position of the bullet-shaped paper guide wheel and the center position of the paper guide roller is less than 90°.

[0007] Furthermore, the heating plate is installed at an angle in the frame, and the angle between the center of the bullet-shaped paper guide wheel and the highest point of the heating plate is less than 90°.

[0008] Furthermore, the angle between the center of the bullet-shaped paper guide wheel and the highest point of the heating plate is greater than the angle between the center of the bullet-shaped paper guide wheel and the center of the paper guide roller.

[0009] Furthermore, the surfaces of the paper guide roller, heating plate, and bullet-shaped paper guide wheel are all coated with a ceramic-alloy composite coating.

[0010] Furthermore, the ceramic-alloy composite coating is formed by thermal spraying.

[0011] Furthermore, the ceramic-alloy composite coating is formed by plasma treatment and thermal spraying.

[0012] Furthermore, the paper guide roller, heating plate, and bullet-shaped paper guide wheel are all made of metal.

[0013] Furthermore, the heating plate is fastened to the frame with bolts.

[0014] Furthermore, the glue application device also includes a guide section located between the paper guide roller and the heating plate.

[0015] This patent provides a cigarette filter rod coating device, which prevents paper strip deviation by setting the arrangement of the paper guide roller, coating device, heating plate and bullet-shaped paper guide wheel, and closely connects the heating process with the hot melt adhesive coating process.

[0016] This patent combines the bottom-up arrangement of the paper guide roller, heating plate, and bullet-shaped paper guide wheel with a metal surface treatment process, achieving a synergistic effect. Compared to existing technologies, this patent has the following advantages: 1. Enhanced Anti-sticking Effect: The scientific bottom-up arrangement ensures even force distribution and a smooth path for the paper tape during transmission, reducing the chance of hot melt adhesive accidentally adhering to the component surface due to tape vibration or deviation. Furthermore, the ceramic-alloy composite coating formed through plasma and thermal spraying, with its smooth and dense surface structure and excellent anti-sticking properties, further eliminates hot melt adhesive residue and adhesion. The combination of these two aspects comprehensively improves anti-sticking performance from two dimensions: reducing the possibility of adhesive adhesion and enhancing surface anti-sticking, thus avoiding product quality problems caused by adhesive adhesion.

[0017] 2. Improved Equipment Operation Stability: The bottom-up arrangement of components ensures closer coordination between them, reducing paper belt drive resistance and vibration. The ceramic-alloy composite coating possesses excellent wear resistance, reducing wear caused by long-term friction and maintaining precise dimensions and transmission accuracy. The combination of these advantages in arrangement and coating properties ensures stable equipment operation, extends equipment lifespan, and reduces downtime due to equipment failure.

[0018] 3. Improved Production Efficiency: The rational layout makes the equipment structure more compact, facilitating quick disassembly and installation of components by operators. Combined with the detachable design and surface treatment process, components that are stuck or worn can be quickly disassembled for repair without large-scale disassembly, significantly reducing maintenance time. Simultaneously, the excellent anti-stick effect ensures production continuity, reducing interruptions caused by cleaning adhesive residue and significantly improving production efficiency.

[0019] 4. Reduced Overall Costs: Improved anti-stick properties reduce raw material waste caused by product defects, and enhanced equipment stability lowers maintenance costs. Efficient maintenance methods shorten downtime and ensure production output. The combination of arrangement and surface treatment reduces the company's overall operating costs and improves economic efficiency from multiple aspects, including raw materials, maintenance, and production capacity. Attached Figure Description

[0020] The above content of this patent and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0021] Figure 1 This is a schematic diagram of the adhesive application device in this patent. Figure 2 This is a front view of the adhesive application device in this patent. Figure 3 This is a schematic diagram of the path of the paper tape in the coating device in this patent.

[0022] The reference numerals in the attached figures are explained as follows: Paper guide rollers: 10 Hot melt glue nozzle: 20 Heating plate: 30 Bullet-shaped paper guide roller: 40 Rack size: 50 Paper tape: 60 Detailed Implementation

[0023] The detailed features and advantages of this patent are described below in the specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this patent and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this patent.

[0024] This specification also uses several compound terms to describe devices, components, equipment, etc. that include more than one function, or to assign additional functions to a corresponding device, component, equipment, etc. Those skilled in the art will understand that such compound terms can be implemented by a single or multiple devices, components, equipment, etc., as long as they are reasonable under the interpretation rules of this patent terminology.

[0025] It should be noted that in this specification, similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and interpreted in subsequent figures. In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined as having the following meanings: The terms “comprising” or “having” have the same meaning as “containing”, and also include other forms of the term, such as the gerund and singular forms in English, meaning including but not limited to, and not intended to exclude, for example, other elements, components, integers or steps. All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.

[0026] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0027] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.

[0028] All references cited in this application are incorporated herein by way of quotation, to the extent that they do not contradict the disclosure herein. It will be apparent to those skilled in the art that products (apparatus, components, devices, compounds, compositions, materials, etc.) and methods (processes, steps, conditions, parameters, equipment, and test methods, equipment, etc.) not specifically described herein can be applied to the implementation of the inventions fully disclosed herein without the need for excessive experimentation. This patent is intended to cover all functional equivalents known in the art of the methods, apparatus, apparatus components, materials, processes, and techniques specifically described herein. All cited references include: The following publications are included: Marks' Standard Handbook for Mechanical Engineers (11th edition and other editions prior to the filing date of this application), published by McGraw-Hill, Inc.; DeGarmo's Materials and Processes in Manufacturing (13th edition and other editions prior to the filing date of this application), published by Wiley; Oberg's Machine Handbook (32nd edition and other editions prior to the filing date of this application), published by IndustrialPress Inc.; Cheng Daxian's Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), published by Chemical Industry Press; and Wen Bangchun's Modern Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), published by Machinery Industry Press.

[0029] This patent will now be described with reference to the accompanying drawings, in which similar reference numerals denote similar elements. While specific structures and arrangements are discussed, it should be understood that this is done merely for illustrative purposes. Those skilled in the art will recognize that other structures and arrangements can be used without departing from the spirit and scope of this patent. It will be clear to those skilled in the art that this patent can also be used in a variety of other applications.

[0030] Example 1

[0031] In the cigarette filter rod forming process, the filter rod material needs to be wrapped with paper tape and fixed in place with hot melt adhesive. During this process, the guide roller 10, heating plate 30, and bullet-shaped guide wheel 40 are susceptible to damage from hot melt adhesive adhesion, affecting their operation. For example... Figure 1-3 As shown, this patent provides an anti-adhesion device. During installation, the guide roller 10, heating plate 30, and bullet-shaped guide wheel 40 are arranged sequentially from bottom to top. The guide roller 10 is connected to the drive motor via a quick-release coupling and is firmly fixed after precise positioning using fastening components to ensure the stability of the initial transmission of the paper tape 60. The heating plate 30, as a heater, can be embedded in the modular slot of the equipment frame 50 and fastened with bolts. Its position ensures that the heating of the paper tape 60 on the heating plate 30 can be closely connected with the hot melt adhesive application process. The bullet-shaped guide wheel 40 is screwed into the threaded hole at the top of the frame 50 for precise guidance of the paper tape 60 after wrapping the filter rod. The three components form a continuous transmission path for the paper tape 60, meeting the stringent requirements of filter rod forming for the transmission accuracy of the paper tape 60.

[0032] The guide roller 10, heating plate 30, and bullet-shaped guide wheel 40 are installed sequentially from bottom to top in the paper belt 60 transmission device. The hot melt glue nozzle 20 serves as a glue application device and is positioned close to the heating plate 30. The guide roller 10, located at the bottom, serves as the initial receiving component for the paper belt 60 transmission. It can stably pull the paper belt 60 upward from a low position, using gravity assistance to reduce the risk of slack caused by the weight of the paper belt 60 itself, ensuring stable tension during the initial transmission of the paper belt 60. The heating plate 30, located in the middle, can heat the paper belt 60 promptly after it has been guided upward by the guide roller 10. This arrangement places the heating stage in an intermediate transition position, fully utilizing heat conduction and preventing heat loss due to premature heating, while also preventing delayed heating from affecting the application of the hot melt adhesive. This creates optimal conditions for the subsequent uniform application, rapid melting, and strong adhesion of the hot melt adhesive. The bullet-shaped guide roller 40, positioned at the top, with its special structural design, precisely guides and adjusts the tension of the heated paper strip 60 from a high position, ensuring that the paper strip 60 enters the hot melt adhesive application area in an ideal state in the middle position, preventing problems such as uneven adhesive application and paper strip 60 deviation caused by guidance deviation. This bottom-up arrangement forms a continuous and orderly transmission path for the paper strip 60, ensuring tight connection between each stage during transmission and reducing unnecessary bends and resistance. Simultaneously, this layout optimizes the space utilization of the equipment. The guide roller 10, heating plate 30, and bullet-shaped guide roller 40 all adopt a detachable structure, facilitating maintenance and repair by operators below the equipment, reducing maintenance difficulty, and conforming to ergonomic principles to improve operational convenience. In addition, this arrangement allows the vibrations generated by each component during operation to cancel each other out, reducing the overall vibration amplitude of the equipment and improving the stability and reliability of the equipment operation.

[0033] refer to Figure 2-3 The angle b between the center of the bullet-shaped paper guide roller 40 and the center of the paper guide roller 10 is less than 90°. At the same time, the angle a between the center of the bullet-shaped paper guide roller 40 and the highest point of the heating plate 30 (i.e., the position closest to the bullet-shaped paper guide roller 40) is less than 90°. The paper strip 60 is stably pulled onto the bullet-shaped paper guide roller 40 under the drive of the paper guide roller 10, and the angle a is greater than the angle b, so that the paper strip 60 on the heating plate 30 has a certain convex transition path relative to the straight path, thereby completely adhering the paper strip 60 to the heating plate 30 for adhesive spraying and heating.

[0034] A guide section is provided between the paper guide roller 10 and the heating plate 30 to facilitate the smoother transfer of the paper strip 60 onto the heating plate 30.

[0035] In actual production conditions, adhesive residue on metal parts remains a persistent technical bottleneck hindering the efficient operation of production lines. Metal materials such as stainless steel and alloy steel have numerous high-energy active sites on their surfaces. During hot melt adhesive spraying at 180-220℃, when polymers such as EVA (ethylene-vinyl acetate copolymer) and polyamide in the adhesive come into contact with the metal surface, they form a strong bond through van der Waals forces, hydrogen bonds, and other interactions. Industry statistics show that downtime for cleaning due to adhesive residue can occur 3-5 times per shift, each time taking 15-30 minutes, resulting in an annual capacity loss of approximately 8%-12% for a single production line, while also incurring additional labor and material costs of hundreds of thousands of yuan annually. More seriously, the changes in surface roughness caused by adhesive buildup accelerate the wear of the bearings on the paper guide roller 10, shortening the equipment maintenance cycle by 30%-40%, and residual adhesive residue can contaminate cigarette filters, leading to product quality complaints.

[0036] Current industry solutions have significant limitations. Traditional mechanical cleaning methods, such as manual scraping or using specialized adhesive removal tools, while temporarily removing the surface adhesive layer, cause microscopic scratches to the metal substrate, exacerbating subsequent adhesive adhesion. Among existing chemical coating protection technologies, some fluoropolymer coatings can reduce surface energy, but under the combined effects of high temperature, high humidity, and mechanical friction, coating adhesion declines rapidly, typically resulting in peeling failure after 200-300 hours. Some companies have attempted to introduce ultrasonic cleaning devices, which can improve cleaning efficiency, but suffer from high energy consumption and complex equipment maintenance, hindering large-scale application. These technological limitations urgently necessitate a new solution that balances long-term protection with process compatibility.

[0037] This patent features a ceramic-alloy composite coating on the surfaces of metal components such as the paper guide roller 10, heating plate 30, and bullet-shaped paper guide wheel 40. Through plasma and thermal spraying technology, a unique microstructure of ceramics and alloys is constructed on the outer surface of the metal components required for cigarette production. This reduces the surface energy of the metal, weakens the van der Waals forces between the adhesive and the metal surface, and prevents adhesive adhesion. The paper guide roller 10, heating plate 30, and bullet-shaped paper guide wheel 40 are made of ferrous metal.

[0038] When production personnel discover hot melt adhesive buildup on the surface of components, affecting the flatness and stability of the paper tape 60 transmission, the operator quickly loosens the fastening assembly of the guide roller 10 coupling and pulls out the locating pin using the detachable structure, removing the guide roller 10; unscrews the fixing bolts of the heating plate 30 and pulls it out of the slot; and rotates the bullet-shaped guide wheel 40 to disassemble it. Subsequently, the three metal components—the guide roller 10, the heating plate 30, and the bullet-shaped guide wheel 40—are transported to the surface treatment workshop for the formation of a ceramic-alloy composite coating on their surfaces.

[0039] In the surface treatment workshop, components are treated sequentially using plasma and thermal spraying technologies. First, plasma treatment is performed. The components are placed in the chamber of the plasma treatment equipment, where ionized gas generates plasma containing a large number of high-energy particles, including ions, electrons, excited-state atoms, and molecules. These high-energy particles bombard the metal surface of the components at extremely high speeds, forcefully breaking down and peeling off surface-adhered impurities such as adhesive residue, oil, and oxide layers through physical impact, achieving deep cleaning. Simultaneously, the continuous bombardment of particles creates a rich microscopic uneven structure on the metal surface, significantly increasing surface roughness and providing more "anchor points" for subsequent coating adhesion, increasing the contact area. Furthermore, the energy injection from the high-energy particles activates metal surface atoms, enhancing surface activity and strengthening their adhesion to coating materials. The plasma treatment process can refer to the preparation method for forming a coating on metal in Chinese invention patent CN109082624A, using plasma cleaning technology to pre-treat the metal components, removing surface oil and oxide scale, with high-purity argon gas as the cleaning source. The plasma cleaning process conditions are as follows: chamber pressure is 10 mTorr, argon flow rate is 100 sccm, and cleaning time is 10 min.

[0040] Immediately after plasma treatment, thermal spraying is performed. Using supersonic flame spraying technology, ceramic powder with high-temperature resistance, wear resistance, and anti-stick properties is thoroughly mixed with alloy powder possessing good toughness and bonding strength in an appropriate ratio. During spraying, the mixed powder is heated to a molten or semi-molten state by a high-temperature flame and sprayed at high speed onto the surface of the plasma-treated component. Due to the clean, rough, and highly reactive surface after plasma treatment, the molten powder can rapidly spread and fill the surface microstructure, bonding tightly with the metal substrate. After rapid cooling and solidification, a uniform, dense, and strongly adhesive ceramic-alloy composite coating is formed. The thermal spraying process can continue to refer to Chinese Invention Patent CN109082624A, which uses supersonic flame thermal spraying technology to coat the spraying material onto the surface of the metal component to prepare a thermal spray coating.

[0041] The coating material consists of carbide ceramic particles and metal-based alloy powder. The carbide ceramic particles are titanium carbide, with a particle size of 100 nm. The metal-based alloy is Fe-W-Co alloy powder, with a particle size of 10 μm. The mass ratio of titanium carbide ceramic particles to Ni-W-Co alloy powder is 1:20, and the mixture is mechanically stirred for 6 hours.

[0042] The process conditions for supersonic flame thermal spraying are as follows: The fuel gas was propylene, the combustion-supporting gas was high-pressure oxygen, and the powder-feeding gas was nitrogen. The high-pressure oxygen pressure was 0.4 MPa, and the high-pressure oxygen flow rate was 260 L / min. The propylene pressure was 0.3 MPa, and the propylene flow rate was 60 L / min. The nitrogen pressure was 0.3 MPa, and the nitrogen flow rate was 12 L / min. The spraying distance was 16 cm, and the spraying angle was 60°. The spraying distance and spraying angle remained constant during the spraying process. The flame velocity was 2000 m / s, and the powder-feeding rate was 100 g / min. The coated metal parts prepared using supersonic flame thermal spraying were subjected to heat treatment under the following conditions: heat treatment temperature was 460℃, and the heat treatment time was 2 h. Heat treatment eliminated the stress between the coating and the metal substrate, resulting in a protective ceramic-alloy composite coating with higher bonding strength. This coating had low porosity and exhibited smooth and anti-stick properties.

[0043] Before plasma and thermal spraying, metal parts can undergo pretreatment. The metal parts to be treated, such as the heating plate 30, paper guide roller 10, bullet-shaped paper guide wheel 40, and hot melt adhesive nozzle 20, undergo thorough cleaning and surface roughening. First, organic solvents (such as acetone and ethanol) are used to degrease the surface of the metal parts, removing oil and impurities. Then, a sandblasting process is used, employing abrasives such as alumina or silicon carbide, at a set pressure to sandblast the metal surface, creating a uniform micro-rough structure, increasing the surface area, and improving the adhesion between the subsequent coating and the metal substrate.

[0044] After surface treatment, the metal parts are reinstalled in their original positions on the production line. The equipment is restarted to produce filter rods. The arrangement of parts from bottom to top ensures that the paper tape 60 is subjected to uniform force during transmission, preventing the paper tape 60 from shifting due to improper part placement. The smooth and non-stick properties of the composite coating effectively prevent hot melt adhesive residue on the part surface, ensuring a stable and efficient filter rod wrapping and forming process, significantly improving the product qualification rate. At the same time, the equipment operates smoothly without any downtime caused by adhesive residue on parts.

[0045] The terms and expressions used in this specification are for illustrative purposes and not for limitation. Their use is not intended to exclude any equivalents of the features or portions thereof shown, but rather to facilitate the understanding that various modifications may be possible within the scope of this patent claim. Therefore, it should be understood that while this patent has been specifically disclosed through preferred embodiments, exemplary embodiments, and optional features, variations or modifications of the concepts disclosed herein may be adopted by those skilled in the art, and such variations and modifications are therefore considered to be within the scope of this patent as defined by the appended claims. The specific embodiments given in this specification are examples of useful embodiments of this patent, and it will be apparent to those skilled in the art that this patent can be implemented using many variations of the devices, device components, and method steps disclosed herein.

[0046] The foregoing description of specific embodiments fully discloses the general features of this patent, enabling others to easily modify and / or adapt such embodiments for various applications by applying knowledge within the scope of the art, without excessive experimentation or deviation from the general concept of this patent. Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.

[0047] Furthermore, the scope of this patent should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents.

Claims

1. A cigarette filter rod coating device, wherein the cigarette filter rod comprises a paper tape for wrapping the filter rod material, characterized in that, The gluing device includes a frame, a paper guide roller, a gluing device, a heating plate, and a bullet-shaped paper guide wheel. The paper guide roller, the heating plate, and the bullet-shaped paper guide wheel are detachably installed in the frame from bottom to top. The gluing device is arranged close to the heating plate. During the process of the paper strip being transported from the paper guide roller to the bullet-shaped paper guide wheel, the gluing device sprays glue onto the heating plate.

2. The cigarette filter rod gluing device according to claim 1, characterized in that, The angle between the center position of the bullet-shaped paper guide wheel and the center position of the paper guide roller is less than 90°.

3. The cigarette filter rod gluing device according to claim 2, characterized in that, The heating plate is installed at an angle in the frame, and the angle between the center of the bullet-shaped paper guide wheel and the highest point of the heating plate is less than 90°.

4. The cigarette filter rod gluing device according to claim 3, characterized in that, The angle between the center of the bullet-shaped paper guide wheel and the highest point of the heating plate is greater than the angle between the center of the bullet-shaped paper guide wheel and the center of the paper guide roller.

5. The cigarette filter rod gluing device according to claim 1, characterized in that, The surfaces of the paper guide roller, the heating plate, and the bullet-shaped paper guide wheel are all coated with a ceramic-alloy composite coating.

6. The cigarette filter rod gluing device according to claim 5, characterized in that, The ceramic-alloy composite coating is formed by thermal spraying.

7. The cigarette filter rod coating device according to claim 6, characterized in that, The ceramic-alloy composite coating is formed by plasma treatment and thermal spraying.

8. The cigarette filter rod gluing device according to claim 5, characterized in that, The paper guide roller, the heating plate, and the bullet-shaped paper guide wheel are all made of metal.

9. The cigarette filter rod gluing device according to claim 1, characterized in that, The heating plate is fastened to the frame with bolts.

10. The cigarette filter rod gluing device according to claim 1, characterized in that, The glue application device also includes a guide section located between the paper guide roller and the heating plate.

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