Cleaning device and method for automatically cleaning residual glue solution on end face of tobacco glue supply nozzle

Abstract

The invention discloses a cleaning device and method for automatically cleaning residual glue on the end face of a tobacco glue supply nozzle, and the cleaning device comprises a servo motor, a belt pulley, a residual glue collection box, a flat belt, a mounting frame, a second roller, a cleaning head assembly, the glue supply nozzle and a glue nozzle disc, the servo motor is mounted on one side of a motor bracket, and the servo motor is in shaft connection with the belt pulley; second rollers are installed at the two ends of the installation frame respectively, and the annular flat belt is wound around the belt pulley and the two second rollers. The cleaning device is characterized in that a plurality of cleaning head assemblies are arranged on the outer side face of the flat belt and are arranged at intervals in the running direction of the flat belt, and a residual glue collecting box is arranged under the belt pulley; the cleaning device is arranged below a glue nozzle disc of the filling machine, and a plurality of glue supply nozzles distributed in the circumferential direction are arranged on the outer circumferential face of the glue nozzle disc. Through the fine automatic cleaning process, the glue supply nozzle is automatically, efficiently, accurately and continuously cleaned under the condition that operation of a production line is not affected, and the production efficiency and the product quality are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of new tobacco (heat-not-burn new particle cigarette) production and manufacturing equipment, and in particular to a cleaning device and method for automatically cleaning residual glue liquid on the end surface of a tobacco glue supply nozzle. Background Art

[0002] In current industrial production, glue coating devices of various structures and shapes are widely used to evenly coat the product surface with glue to meet the requirements of the bonding process. Especially in the production of new particle cigarettes that are heated but not burned, the glue nozzle is used to accurately glue the end of the cigarette tube, and then a special sealing paper is used to implement bonding and sealing at the glue coating position to effectively prevent the leakage of tobacco particles. However, during the glue supply and coating process, due to its unique structural characteristics and other related factors, glue residue and accumulation are easily formed on the end face and surrounding of the glue nozzle. If not cleaned in time, these residual glues are easy to accumulate and solidify or gradually accumulate under the action of gravity, and may drip into the inside of the cigarette tube or onto the equipment, which not only affects the appearance and quality of the cigarette products, but may also cause equipment failure and increase maintenance costs.

[0003] Given the limited space for equipment operation and the space constraints for installing additional cleaning devices, the existing automatic cleaning system is not conducive to widespread promotion and application due to its complex structure and high cost. At present, the conventional operation method is to have full-time personnel in the production process to wipe and clean the residual glue through manual intervention. This approach is not only time-consuming and labor-intensive, but also inefficient, and there are hygiene issues. At the same time, it is difficult to ensure the consistency of cleaning quality and cleaning effect. In view of this, it is urgent to develop an efficient and precise automatic cleaning device to remove the residual glue at the glue supply nozzle port. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a cleaning device and method for automatically cleaning residual glue on the end face of a tobacco glue nozzle. Through a sophisticated automatic cleaning process, the device achieves automatic, efficient and precise continuous cleaning of the glue nozzle without affecting the operation of the production line, thereby greatly improving production efficiency and product quality.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A cleaning device for automatically cleaning residual glue liquid on the end surface of a tobacco glue supply nozzle, comprising a servo motor (1), a motor bracket (2), a pulley (3), a residual glue collection box (4), a flat belt (10), a mounting frame (11), a second roller (13), a cleaning head assembly (14), a glue supply nozzle (15), a glue nozzle disk (16), and a support (17). A servo motor is mounted on one side of the motor bracket, a pulley is connected to the shaft of the servo motor, and the pulley is arranged on the other side of the motor bracket. A mounting frame is mounted on the support, and second rollers are respectively mounted on both ends of the mounting frame. An annular flat belt is wound around the pulley and the two second rollers. The invention is characterized in that a cleaning head assembly is arranged on the outer side surface of the flat belt, a plurality of cleaning head assemblies are arranged at intervals along the running direction of the flat belt, a residual glue collection box is arranged directly below the pulley, and the residual glue collection box is located below the cleaning head assembly; the cleaning device is arranged below the glue nozzle disk of a filling machine, and a plurality of glue supply nozzles distributed along the circumferential direction are arranged on the outer peripheral surface of the glue nozzle disk.

[0006] Furthermore, the motor bracket is installed on the filling machine, and an adjustment frame (6) is arranged directly above the pulley. The middle part of the adjustment frame is installed on the waist-shaped groove of the motor bracket through a first shaft (7). The height position and the inclination angle of the adjustment frame along the vertical direction are adjusted by adjusting the installation position of the first shaft in the waist-shaped groove; first rollers (9) are installed at both ends of the adjustment frame through a second shaft (8), and the two first rollers are in contact with the inner side surface of the flat belt; a felt scraper (5) is installed in the residual glue collection box for collecting residual glue scraped from the glue supply nozzle, the pulley is located at the lower end of the annular flat belt, and a cleaning head assembly is bonded to the outer side surface of the annular flat belt. The two second rollers are installed on the left and right ends of the mounting frame through a third shaft (12), and the mounting frame is fixed to the tobacco filling machine through a support.

[0007] Furthermore, the bottom end of the glue supply nozzle (15) has a lower end surface (151) and a conical surface (152), and the cleaning head assembly (14) comprises a base (141), a movable sleeve (142), a conical brush head (143), and an end face brush (144). The movable sleeve is rotatably mounted in the base, and the base is connected to a flat belt. The conical brush head is mounted in the movable sleeve. The upper end of the conical brush head has a plurality of petal-type brushes, and the plurality of petal brushes form a conical structure. The conical brush head cooperates with the conical surface 152 of the glue supply nozzle. Through a push-pull operation, the conical brush head and the movable sleeve can be quickly connected and disconnected for replacement; the end face brush is mounted in the conical brush head and cooperates with the lower end surface of the glue supply nozzle to ensure good surface adhesion.

[0008] Furthermore, the residual glue collection box (4) is made of transparent plastic, which is convenient for observing the amount of waste glue inside; the flat belt (10) and the base (141) are both made of silicone rubber material, and the bases are bonded to the flat belt one by one by thermal fusion.

[0009] Furthermore, the conical brush head (143) is made of nylon material or plastic material, and the end brush (144) is made of silicone rubber material.

[0010] A cleaning method for a cleaning device for automatically cleaning residual glue on the end surface of a tobacco glue supply nozzle, wherein the cleaning device and a tobacco filling machine operate in coordination to ensure efficient cleaning during the production process, comprising the following steps: S1: First, after the filling machine is started, the nozzle disc (16) starts to rotate, driving the nozzle (15) to perform precise rotational motion. At the same time, the servo motor (1) is started and precisely controlled by the control system to drive the pulley to rotate, thereby driving the flat belt (10) to perform a circular rotation in the opposite direction to the nozzle disc. The movement of the flat belt drives the multiple cleaning head assemblies (14) thereon to move along a preset trajectory. The sensor provided on the filling machine is responsible for detecting the position of the nozzle port to ensure that the cleaning head assembly is accurately aligned with the nozzle. S2: Subsequently, under the joint action of the conical brush head (143) and the end face brush (144) in the cleaning head assembly, the end face brush closely fits the lower end face of the glue supply nozzle, and through the continuous movement of the flat belt, the lower end face of the glue supply nozzle is wiped one by one, thereby effectively removing the glue liquid attached to the surface; at the same time, the conical brush head is driven by the rotation of the glue supply nozzle to rotate around the conical surface of the glue supply nozzle for cleaning, and its special structural design ensures that during the rotation process, the friction between the brush bristles and the surface of the glue supply nozzle can completely remove the residual glue liquid, thereby ensuring that there is no omission in the cleaning; S3: The waste glue generated during the cleaning process is scraped off and collected by a felt scraper (5) fixed to one side of the residual glue collection box (4). When the cleaning head assembly moves, the felt scraper gently contacts the conical brush head and the end brush, and uses its softness and adsorption to scrape the residual glue off the brush head and guide the waste glue to fall accurately into the residual glue collection box below; S4: After the cleaning operation is completed, the cleaning head assembly (14) automatically moves to the next cleaning station under the instruction of the control system, and prepares to clean the next glue supply nozzle, thereby ensuring the continuity and automation of the cleaning operation.

[0011] The cleaning device and method for automatically cleaning residual glue liquid on the end surface of a tobacco glue supply nozzle of the present invention have the following beneficial technical effects: (1) The cleaning device has a simple structure, is easy to operate, and has a high degree of automation. It can effectively remove the residual glue on the glue supply nozzle port of the ring glue applicator without affecting normal production, significantly improving the cleaning efficiency, thereby improving production efficiency and product quality, and solving the problems of low efficiency, incomplete cleaning, and operational risks in manual wiping, providing an efficient and safe automated solution for glue supply nozzle cleaning.

[0012] The present invention ensures the uniformity of the glue coating process of the glue supply nozzle through precise automated cleaning technology, reduces the defective product rate, reduces manual intervention and consumables consumption, optimizes production and maintenance costs, improves glue coating consistency, and reduces maintenance costs. The cleaning device realizes uninterrupted automatic cleaning of the production line, significantly improves the safety of the working environment, greatly improves production efficiency, reduces downtime, enhances operation safety, and improves production efficiency.

[0013] (2) The cleaning device adopts a compact design, which is easy to install and maintain in the limited space of the filling machine. It also has good environmental adaptability and is suitable for a variety of granular cigarette production equipment.

[0014] (3) The cleaning head of the present invention adopts a modular design, which is convenient for quick replacement and adjustment to adapt to glue supply nozzles of different sizes, thereby achieving efficient utilization of the equipment and optimization of long-term operating costs. The modular design is cost-effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a cleaning device for automatically cleaning residual glue liquid on the end surface of a tobacco glue supply nozzle according to the present invention; Figure 2 This is a schematic diagram of the structure of the glue supply nozzle of the present invention; Figure 3 It is a schematic diagram of the structure of the cleaning head assembly of the present invention.

[0016] In the figure: servo motor 1, motor bracket 2, pulley 3, residual glue collection box 4, felt scraper 5, adjustment frame 6, first shaft 7, second shaft 8, first roller 9, flat belt 10, mounting frame 11, third shaft 12, second roller 13, cleaning head assembly 14, base 141, movable sleeve 142, conical brush head 143, end face brush 144, glue supply nozzle 15, lower end face 151, conical surface 152, glue nozzle disc 16, and support 17. DETAILED DESCRIPTION

[0017] In order to make the technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described in detail in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present invention, which are only used to explain the present invention, not to limit the present invention. It should be noted that, for the convenience of description, only the parts / structures related to the present invention are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0018] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the present invention should be the common meanings understood by ordinary technicians in the field to which the present invention belongs.

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1-3 As shown, a cleaning device for automatically cleaning residual glue liquid on the end surface of a tobacco glue supply nozzle comprises a servo motor 1, a motor bracket 2, a pulley 3, a residual glue collection box 4, a flat belt 10, a mounting frame 11, a second roller 13, a cleaning head assembly 14, a glue supply nozzle 15, a glue nozzle disk 16, and a support 17. The servo motor 1 is mounted on one side of the motor bracket 2, and the servo motor 1 shaft is connected to the pulley 3, which is arranged on the other side of the motor bracket 2. The mounting frame 11 is mounted on the support 17, and the two ends of the mounting frame 11 are respectively A second roller 13 is installed, and an annular flat belt 10 is wound around the pulley 3 and two second rollers 13; it is characterized in that: a cleaning head assembly 14 is arranged on the outer side of the flat belt 10, and multiple cleaning head assemblies 14 are arranged (evenly) at intervals along the running direction of the flat belt 10, a residual glue collection box 4 is arranged directly below the pulley 3, and the residual glue collection box 4 is located below the cleaning head assembly 14; the cleaning device is arranged below the nozzle disc 16 of the filling machine, and the outer peripheral surface of the nozzle disc 16 is provided with multiple glue supply nozzles 15 distributed along the circumferential direction.

[0021] The motor bracket 2 is installed on the filling machine, and an adjustment frame 6 is arranged directly above the pulley 3. The middle part of the adjustment frame 6 is installed on the waist-shaped groove of the motor bracket 2 through the first shaft 7. The height position and the inclination angle of the adjustment frame 6 along the vertical direction are adjusted by adjusting the installation position of the first shaft 7 in the waist-shaped groove (that is, the height position and the inclination angle of the adjustment frame 6 can be fine-tuned relative to the motor bracket 2 to adapt to different working environments); first rollers 9 are installed at both ends of the adjustment frame 6 through the second shaft 8, and the two first rollers 9 are in contact with the inner side of the flat belt 10; a felt scraper 5 is installed in the residual glue collection box 4 for collecting the residual glue / waste glue scraped from the glue supply nozzle 15, the pulley 3 is located at the lower end / bottom end of the circular flat belt 10, and a cleaning head assembly 14 is bonded to the outer side of the circular flat belt 10, and two second rollers 13 are installed on the left and right ends of the mounting frame 11 through the third shaft 12, and the mounting frame 11 is fixed to the tobacco filling machine through the support 17 to ensure the stability of the entire cleaning device.

[0022] The bottom end of the glue supply nozzle 15 has a lower end surface 151 and a conical surface 152. The cleaning head assembly 14 includes a base 141, a movable sleeve 142, a conical brush head 143, and an end face brush 144. The movable sleeve 142 is rotatably installed in the base 141, the base 141 is connected to the flat belt 10, the conical brush head 143 is installed in the movable sleeve 142, and the upper end of the conical brush head 143 has a plurality of petal brushes, and the plurality of petal brushes form a conical structure. The conical brush head 143 cooperates / matches with the conical surface 152 of the glue supply nozzle 15. Through push-pull operations, the conical brush head 143 and the movable sleeve 142 can be quickly connected and disconnected for replacement; the end face brush 144 is installed in the conical brush head 143, and cooperates / matches with the lower end surface 151 of the glue supply nozzle 15 to ensure good surface fitting.

[0023] The conical brush head 143 and the end surface brush 144 are in contact with the conical surface 152 and the lower end surface 151 of the glue supply nozzle 15 respectively and perform automatic cleaning.

[0024] The residual glue collection box 4 is made of transparent plastic, which is convenient for observing the amount of waste glue inside; the flat belt 10 and the base 141 are both made of silicone rubber material, and the base 141 is bonded to the flat belt 10 one by one by thermal fusion.

[0025] The conical brush head 143 is made of nylon or plastic material, and the end brush 144 is made of silicone rubber material.

[0026] The present invention provides a cleaning device for automatically cleaning residual glue liquid on the end face of a tobacco glue supply nozzle. The cleaning device utilizes a flat belt transmission system, in which a servo motor drives a pulley to rotate, thereby driving multiple groups of cleaning head assemblies bonded to the flat belt to continuously rotate. The cleaning head assembly in the cleaning device includes a specially designed conical brush head and an end face brush head, which are precisely designed, and fully consider the geometric matching with the conical face and the lower end face of the glue supply nozzle, thereby ensuring the applicability and flexibility of the cleaning device. They work in coordination with auxiliary components such as an adjustment frame and a felt scraper, and can automatically remove residual glue liquid on the conical face and the lower end face of the glue supply nozzle without stopping the production line, thereby ensuring the thoroughness and accuracy of the cleaning process, significantly improving the cleaning quality, cleaning effect and production efficiency, and greatly improving the stability and reliability of the production process, thereby providing an efficient and safe cleaning solution for the cleaning and maintenance of the glue supply nozzle of granular cigarettes.

[0027] A cleaning device and a cleaning method for automatically cleaning residual glue liquid on the end surface of a tobacco glue supply nozzle, wherein the cleaning device and a tobacco filling machine operate in coordination to ensure efficient cleaning during the production process, comprising the following steps: S1: First, after the filling machine is started, the nozzle disc 16 starts to rotate, driving the nozzle 15 to perform precise rotational motion. At the same time, the servo motor 1 is started and precisely controlled by the control system to drive the pulley 3 to rotate, thereby driving the flat belt 10 to perform a circular rotation in the opposite direction of the nozzle disc 16. The movement of the flat belt 10 drives the multiple cleaning head assemblies 14 thereon to move along a preset trajectory. The sensor set on the filling machine is responsible for detecting the position of the port of the nozzle 15 to ensure that the cleaning head assembly 14 is accurately aligned with the nozzle 15. S2: Subsequently, under the joint action of the conical brush head 143 and the end face brush 144 in the cleaning head assembly 14, the end face brush 144 closely fits the lower end face 151 of the glue supply nozzle 15, and through the continuous movement of the flat belt 10, the lower end face 151 of the glue supply nozzle 15 is wiped one by one, and the glue attached to the surface thereof is effectively removed; at the same time, the conical brush head 143 is driven by the rotation of the glue supply nozzle 15 to rotate around the conical surface 152 of the glue supply nozzle 15 for cleaning, and its special structural design ensures that during the rotation process, the friction between the bristles and the surface of the glue supply nozzle 15 can completely remove the residual glue, ensuring that there is no omission in the cleaning; S3: The waste glue generated during the cleaning process is scraped and collected by the felt scraper 5 fixed on one side of the residual glue collection box 4. When the cleaning head assembly 14 moves, the felt scraper 5 gently contacts the conical brush head 143 and the end brush 144, and uses its softness and adsorption to scrape the residual glue from the brush head and guide the waste glue to accurately fall into the residual glue collection box 4 below; S4: After the cleaning operation is completed, the cleaning head assembly 14 automatically moves to the next cleaning station under the instruction of the control system, and prepares to clean the next glue supply nozzle. The whole process does not require manual intervention, ensuring the continuity and automation of the cleaning operation.

[0028] The cleaning device and method for automatically cleaning residual glue liquid on the end surface of a tobacco glue supply nozzle of the present invention have the following beneficial technical effects: (1) The cleaning device has a simple structure, is easy to operate, and has a high degree of automation. It can effectively remove the residual glue on the glue supply nozzle port of the ring glue applicator without affecting normal production, significantly improving the cleaning efficiency, thereby improving production efficiency and product quality, and solving the problems of low efficiency, incomplete cleaning, and operational risks in manual wiping, providing an efficient and safe automated solution for glue supply nozzle cleaning.

[0029] The present invention ensures the uniformity of the glue coating process of the glue supply nozzle through precise automated cleaning technology, reduces the defective product rate, reduces manual intervention and consumables consumption, optimizes production and maintenance costs, improves glue coating consistency, and reduces maintenance costs. The cleaning device realizes uninterrupted automatic cleaning of the production line, significantly improves the safety of the working environment, greatly improves production efficiency, reduces downtime, enhances operation safety, and improves production efficiency.

[0030] (2) The cleaning device adopts a compact design, which is easy to install and maintain in the limited space of the filling machine. It also has good environmental adaptability and is suitable for a variety of granular cigarette production equipment.

[0031] (3) The cleaning head of the present invention adopts a modular design, which is convenient for quick replacement and adjustment to adapt to glue supply nozzles of different sizes, thereby achieving efficient utilization of the equipment and optimization of long-term operating costs. The modular design is cost-effective.

[0032] The above-mentioned implementation modes are for explanation of the present invention rather than limitation of the present invention. It can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cleaning device for automatically cleaning residual glue liquid on the end surface of a tobacco glue supply nozzle, comprising a servo motor (1), a motor bracket (2), a pulley (3), a residual glue collection box (4), a flat belt (10), a mounting frame (11), a second roller (13), a cleaning head assembly (14), a glue supply nozzle (15), a glue nozzle disk (16), and a support (17), wherein a servo motor is mounted on one side of the motor bracket, a pulley is connected to the servo motor shaft, and the pulley is arranged on the other side of the motor bracket, a mounting frame is mounted on the support, and second rollers are respectively mounted on both ends of the mounting frame, and an annular flat belt is wound around the pulley and the two second rollers; characterized in that: A cleaning head assembly is provided on the outer side surface of the flat belt, and multiple cleaning head assemblies are arranged at intervals along the running direction of the flat belt. A residual glue collection box is provided directly below the pulley, and the residual glue collection box is located below the cleaning head assembly; the cleaning device is arranged below the nozzle disk of the filling machine, and the outer peripheral surface of the nozzle disk is provided with multiple glue supply nozzles distributed along the circumferential direction.

2. A cleaning device for automatically cleaning residual glue on the end surface of a tobacco glue supply nozzle as claimed in claim 1, characterized in that: The motor bracket is installed on the filling machine, and an adjustment frame (6) is arranged directly above the pulley. The middle part of the adjustment frame is installed on the waist-shaped groove of the motor bracket through a first shaft (7). The height position and the inclination angle of the adjustment frame along the vertical direction are adjusted by adjusting the installation position of the first shaft in the waist-shaped groove; first rollers (9) are installed at both ends of the adjustment frame through a second shaft (8), and the two first rollers are in contact with the inner side surface of the flat belt; a felt scraper (5) is installed in the residual glue collection box for collecting residual glue scraped from the glue supply nozzle, the pulley is located at the lower end of the annular flat belt, and a cleaning head assembly is bonded to the outer side surface of the annular flat belt. The two second rollers are installed on the left and right ends of the installation frame through a third shaft (12), and the installation frame is fixed to the tobacco filling machine through a support.

3. A cleaning device for automatically cleaning residual glue on the end surface of a tobacco glue supply nozzle as claimed in claim 2, characterized in that: The bottom end of the glue supply nozzle (15) has a lower end surface (151) and a conical surface (152). The cleaning head assembly (14) comprises a base (141), a movable sleeve (142), a conical brush head (143), and an end face brush (144). The movable sleeve is rotatably mounted in the base. The base is connected to a flat belt. The conical brush head is mounted in the movable sleeve. The upper end of the conical brush head has a plurality of petal brushes, and the plurality of petal brushes form a conical structure. The conical brush head cooperates with the conical surface 152 of the glue supply nozzle. Through a push-pull operation, the conical brush head and the movable sleeve can be quickly connected and disconnected for replacement. The end face brush is mounted in the conical brush head and cooperates with the lower end surface of the glue supply nozzle to ensure good surface adhesion.

4. A cleaning device for automatically cleaning residual glue on the end surface of a tobacco glue supply nozzle as claimed in claim 3, characterized in that: The residual glue collection box (4) is made of transparent plastic, which is convenient for observing the amount of waste glue inside; the flat belt (10) and the base (141) are both made of silicone rubber material, and the bases are bonded to the flat belt one by one by thermal fusion.

5. A cleaning device for automatically cleaning residual glue on the end surface of a tobacco glue supply nozzle as claimed in claim 4, characterized in that: The conical brush head (143) is made of nylon material or plastic material, and the end brush (144) is made of silicone rubber material.

6. A cleaning method for a cleaning device for automatically cleaning residual glue on the end surface of a tobacco glue supply nozzle, comprising the cleaning device as claimed in claim 3 or 5, the cleaning device and the tobacco filling machine operate in coordination to ensure efficient cleaning during the production process, comprising the following steps: S1: First, after the filling machine is started, the nozzle disc (16) starts to rotate, driving the nozzle (15) to perform precise rotational motion. At the same time, the servo motor (1) is started and precisely controlled by the control system to drive the pulley to rotate, thereby driving the flat belt (10) to perform a circular rotation in the opposite direction to the nozzle disc. The movement of the flat belt drives the multiple cleaning head assemblies (14) thereon to move along a preset trajectory. The sensor provided on the filling machine is responsible for detecting the position of the nozzle port to ensure that the cleaning head assembly is accurately aligned with the nozzle. S2: Subsequently, under the joint action of the conical brush head (143) and the end face brush (144) in the cleaning head assembly, the end face brush closely fits the lower end face of the glue supply nozzle, and through the continuous movement of the flat belt, the lower end face of the glue supply nozzle is wiped one by one, thereby effectively removing the glue liquid attached to the surface; at the same time, the conical brush head is driven by the rotation of the glue supply nozzle to rotate around the conical surface of the glue supply nozzle for cleaning, and its special structural design ensures that during the rotation process, the friction between the brush bristles and the surface of the glue supply nozzle can completely remove the residual glue liquid, thereby ensuring that there is no omission in the cleaning; S3: The waste glue generated during the cleaning process is scraped off and collected by a felt scraper (5) fixed to one side of the residual glue collection box (4). When the cleaning head assembly moves, the felt scraper gently contacts the conical brush head and the end brush, and uses its softness and adsorption to scrape the residual glue off the brush head and guide the waste glue to fall accurately into the residual glue collection box below; S4: After the cleaning operation is completed, the cleaning head assembly (14) automatically moves to the next cleaning station under the instruction of the control system, and prepares to clean the next glue supply nozzle, thereby ensuring the continuity and automation of the cleaning operation.

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