A cleaning device for multi-angle cleaning of a plate cylinder
By designing a cleaning device that combines a high-pressure jet ring with a cleaning fluid, multi-angle automatic cleaning of the printing roller is achieved. This solves the problems of excessive damage to the printing roller and poor cleaning effect caused by traditional cleaning methods, extends the service life of the printing roller, and avoids corrosion and clogging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD
- Filing Date
- 2024-01-11
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional cleaning methods cause significant damage to the printing rollers and have poor cleaning effects, affecting printing quality and service life.
A cleaning device was designed that uses a high-pressure jet ring in conjunction with cleaning fluid to automatically scan and adjust the impact force and airflow direction, and combines it with an automatic waste liquid recovery component to achieve multi-angle cleaning.
It improves the cleaning effect, reduces damage to the printing roller surface, extends the service life of the printing roller, and avoids corrosion and clogging problems caused by the cleaning solution.
Smart Images
Figure CN117644718B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cleaning equipment technology, specifically to a cleaning device for multi-angle cleaning of printing rollers. Background Technology
[0002] In printing presses, printing rollers refer to a set of rollers installed on the machine to transfer printing plates. Printing rollers consist of multiple rollers, including lead rollers, calendering rollers, and web-mounting rollers. They are used to transfer printed paper to the conveying system for further processing or packaging. They also play a crucial role in printing and ink extraction. During the printing process, the action of the doctor blade causes wear on the printing rollers. Over time, this gradually reduces the opening size and depth of the ink orifices, resulting in a decrease in the total amount of ink transferred. Therefore, regular maintenance and cleaning of printing rollers are essential for extending their lifespan.
[0003] Because printing rollers have a relatively delicate structure, cleaning methods are usually not very rough. Traditional cleaning methods are usually manual, which can minimize damage to the rollers. However, the ink on the rollers can cause considerable corrosive damage to the cleaning personnel, and professional cleaning solutions can also have health effects on the operators. Most cleaning equipment uses brush cleaning, which not only has poor cleaning effect but can also scratch the surface of the rollers. Scratched rollers not only reduce printing quality but also drastically shorten the service life of the rollers. Therefore, the maintenance and use of printing rollers has always been a challenge. Summary of the Invention
[0004] The purpose of this invention is to provide a cleaning device for multi-angle cleaning of printing rollers, so as to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cleaning device for multi-angle cleaning of printing rollers.
[0006] The cleaning device includes a cleaning tank and a water supply pipe. A sealing cover is rotatably connected to the cleaning tank. A printing roller mounting frame is slidably connected to the cleaning tank. Multiple cleaning nozzles are installed inside the cleaning tank. Cleaning pipelines are installed on the cleaning tank and connected to each cleaning nozzle via conduits. An adjustment box is installed inside the cleaning tank, and the cleaning nozzles are rotatably connected to the adjustment box. A cleaning sleeve is installed on the printing roller mounting frame, and a high-pressure air jet ring is installed on the cleaning sleeve, connected to an air pump. An adjustment ring is installed on the printing roller mounting frame, slidably connected to it. A pressure regulating valve is installed on the cleaning tank and connected to it. A waste liquid recovery component is installed at the bottom of the cleaning tank during cleaning. During the process, cleaning fluid is supplied to the cleaning pipeline on the cleaning tank via the water supply pipe. The cleaning fluid then enters the cleaning pipeline and is distributed to each cleaning nozzle. The cleaning nozzle discharges the supplied fluid, and the printing roller is installed into the printing roller mounting frame. The cleaning fluid falls onto the printing roller to clean it. At the same time, during the cleaning process, the high-pressure air jet ring on the cleaning sleeve blows air along the printing roller, working in conjunction with the cleaning fluid to ensure that the cleaning fluid flows fully on the printing roller, thereby thoroughly cleaning the printing roller and avoiding corrosion problems caused by prolonged adhesion of the cleaning fluid. Meanwhile, the adjusting ring can fully regulate the airflow direction, allowing the airflow to circulate around the printing roller and ensuring that the cleaning fluid is fully distributed on the printing roller.
[0007] The printing roller mounting frame includes a mounting ring and a connecting frame. The connecting frame is mounted on the mounting ring, and a secondary mounting ring is located at the end of the connecting frame furthest from the mounting ring. An adjusting ring is slidably connected to the connecting frame. The secondary mounting ring and the mounting ring are rotatably connected to the connecting frame. A rotary motor is installed inside the adjusting box, and the output end of the rotary motor is connected to the mounting ring. A locking plate and a locking spring are installed inside the mounting ring and the secondary mounting ring. The locking plate is rotatably connected to the mounting ring. When the locking plate is opened, the printing roller is installed into the mounting ring and the secondary mounting ring. Then, the locking plate is closed, and the printing roller will be fixed in place. Subsequently, under the action of the rotary motor, the mounting ring will drive the printing roller to rotate, and the secondary mounting ring will also rotate. The locking spring will hold the locking plate in place, and the locking plate will firmly lock the printing roller, ensuring that the printing roller will not fall off.
[0008] A movable screw is installed inside the connecting frame, rotatably connected to the connecting frame. The outer edge of the mounting ring has teeth, and the end of the movable screw near the mounting ring also has teeth. The mounting ring meshes with the teeth on the movable screw. An adjusting ring is fitted onto the movable screw and meshes with its threads. The mounting ring has a guide hole, inside which a guide spring is fixedly connected. During cleaning, the mounting ring rotates, and the teeth on the mounting ring drive the movable screw to rotate. As the movable screw rotates, it moves the adjusting ring. This movement controls the spray position of the high-pressure air gun, ensuring the airflow reaches the printing roller effectively. This allows the cleaning fluid and airflow to thoroughly remove the oil film from the printing roller. Part of the airflow passes through the guide hole and the guide spring, entering the slide within the connecting frame, thus reducing sludge accumulation and preventing the adjusting ring from moving smoothly.
[0009] Multiple adjusting blades are evenly arranged on the adjusting ring, and an adaptation seat is set inside the adjusting ring. The connecting end of each adjusting blade is rotatably connected to the adaptation seat via a rotating shaft. An adaptation slide is set inside the adjusting ring, and the adaptation seat slides in contact with the adaptation slide. A guide plate is set on the connecting end of the adjusting blade, and the guide plate is embedded in the adaptation slide and slides in contact with the adaptation slide. A pressing spring is set on the adaptation seat, and the pressing spring presses against the adjusting ring and slides in contact with the adaptation slide. The adjusting ring moves under the action of the mounting ring, and the adjusting blades on the adjusting ring will change with the movement of the adaptation seat. When it approaches the high-pressure jet ring, the gas will drive the adaptation seat closer to the adaptation slide. As it goes deeper, the guide plate is embedded deeper into the adaptation slide, and the rotation angle of the adjusting blade is larger. At this time, the force of the gas acting on the nearby printing roller is reduced, reducing the impact of the high-pressure gas on the printing roller. As it moves further away, under the action of the pressing spring, the adaptation seat gradually moves away from the adaptation slide, and the deflection angle of the adjusting blade becomes smaller, so that the high-pressure gas is fully utilized, and the force acting on the printing roller is not much different from the impact force on the front printing roller.
[0010] The adjustment box contains an adjustment motor with an adjustment gear at its output. The cleaning nozzle has teeth that mesh with the adjustment gear on the adjustment motor. The adjustment box also contains a feedback plate with an infrared scanning component. This component is electrically connected to the adjustment motor via wires. During the cleaning process, the infrared scanning component detects the shape of the printing roller's cleaning surface and the depth of some grooves. Based on the detected shape, the adjustment motor drives the cleaning nozzle to rotate via the adjustment gear, ensuring thorough cleaning of the printing roller while minimizing impact damage.
[0011] The infrared scanning assembly includes an infrared emitting plate and an infrared detection plate. The infrared detection plate is electrically connected to the adjusting motor via wires. The infrared emitting plates are respectively set on the same side of the printing roller mounting frame, and the infrared detection plates are respectively set on the side of the printing roller mounting frame away from the mounting frame. The infrared emitting plates emit infrared rays, which are detected by the infrared detection plates to detect the shape of the printing roller. When a deep groove appears, the adjusting motor drives the cleaning nozzle to rotate downward, thereby removing ink and other substances in the groove. When it is relatively flat, the adjusting motor drives the cleaning nozzle to rotate upward, reducing damage to the printing roller surface and avoiding problems such as dents.
[0012] The cleaning nozzle is equipped with a spray housing, inside which is a traction frame slidably connected to the spray housing. A sliding weight is mounted on the traction frame and fixedly connected to it. The sliding weight is also slidably connected to the spray housing. Dispersion springs are installed on the spray nozzles of the spray housing. The end of the traction frame away from the sliding weight slides in contact with the dispersion springs inside the spray nozzles. During spraying, the adjusting motor drives the spray housing to rotate, and as the spray housing rotates, the sliding weight will shift due to gravity. The traction frame moves as the spray head moves upward. When the spray head sprays upward, the traction frame presses against the dispersing spring, making the dispersing spring straight. At this time, the sprayed cleaning liquid is mostly dispersed under the action of the dispersing spring, which can reduce the impact on the printing roller and reduce the impact damage to the groove part. When the spray head sprays upward, the traction frame presses against the dispersing spring, causing the dispersing spring to bend. The bent dispersing spring will no longer block the cleaning liquid, and the cleaning at this time will also have a greater impact force, which can wash the stains with high intensity.
[0013] The waste liquid recovery assembly includes a recovery plate with multiple recovery holes. Each recovery plate contains a cleaning rack that slides in contact with the recovery holes. A cleaning spring is mounted on each cleaning rack, with its two ends connected to the cleaning rack and the bottom of the inner wall of the cleaning tank, respectively. A discharge port with a filter screen is located at the bottom of the cleaning tank. During waste liquid recovery, the cleaning liquid falls onto the recovery plate and flows through the recovery holes to the discharge port. Once the cleaning liquid falls onto the cleaning rack, the rack slides within the recovery holes. Under the action of the cleaning spring, the cleaning rack repeatedly slides within the recovery holes, removing oil stains adhering to the discharge port, preventing oil accumulation, and ensuring the efficient flow of the recovery plate.
[0014] A cleaning motor is installed at the outlet, and a pressure fan blade is installed at the output end of the cleaning motor. The pressure fan blade is rotatably connected to the outlet. A cleaning tube is installed at the outlet away from the recovery plate, and a cleaning ring is installed on the cleaning tube. A pressure cam is installed inside the cleaning tube, and the pressure cam is rotatably connected to the cleaning ring. The pressure cam slides in contact with the outer wall of the cleaning tube. When recycling waste liquid, natural drainage alone may not be enough to discharge the cleaning liquid in time. At this time, the cleaning motor needs to be started to rotate. The cleaning motor drives the pressure fan blade to rotate, generating sufficient negative pressure. The cleaning liquid is discharged from the cleaning tank under the action of suction. At the same time, in order to avoid the cleaning liquid from clogging the outlet, the cleaning ring can be moved. The pressure cam on the cleaning ring will pressurize the cleaning tube, so that the dirt can be removed in time and the clogging problem can be reduced.
[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: 1. The present invention adopts a structural component with automatic scanning and automatic adjustment of impact force. By scanning the shape of the printing roller, different spraying methods are used for different printing areas to avoid the problem of missed cleaning, improve the cleaning effect, and at the same time reduce damage to the surface of the printing roller and extend the service life of the printing roller.
[0016] 3. This invention employs a mechanism with high-pressure blowing function, combined with an adjustment ring that can automatically adjust the airflow intensity and direction. It can automatically adjust the airflow direction according to the airflow intensity. Combined with the horizontally sprayed cleaning liquid, it can easily remove the impurities and oil film adhering to the surface of the printing roller, avoiding the problem of stubborn oil film that cannot be completely removed.
[0017] 4. This invention employs a waste liquid recovery component with preliminary filtration function to perform preliminary filtration and removal of the cleaning liquid after cleaning. At the same time, the impurity removal ring and the cleaning rack work together to ensure that the cleaning liquid can be discharged from the cleaning tank in a timely manner, while also avoiding the problem of clogging in the cleaning tank. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the internal structure of the cleaning box of the present invention;
[0021] Figure 3 This is a top view of the internal structure of the cleaning box of the present invention;
[0022] Figure 4This is a cross-sectional view of the printing roller mounting frame of the present invention;
[0023] Figure 5 yes Figure 4 A partially enlarged structural diagram of A;
[0024] Figure 6 This is a schematic diagram of the adjustment box and cleaning nozzle structure of the present invention;
[0025] Figure 7 This is a schematic diagram of the internal structure of the cleaning nozzle of the present invention;
[0026] Figure 8 This is a schematic diagram of the waste liquid recovery component structure of the present invention;
[0027] In the diagram: 1. Cleaning box; 2. Sealing cover; 3. Roller mounting frame; 301. Mounting ring; 302. Connecting frame; 303. Mounting auxiliary ring; 304. Rotary motor; 305. Locking piece; 306. Locking spring; 307. Moving screw; 308. Guide hole; 309. Guide spring; 4. Cleaning pipeline; 5. Cleaning nozzle; 501. Spray housing; 502. Traction frame; 503. Sliding weight; 504. Dispersion spring; 6. Adjustment box; 601. Adjustment motor; 602. Adjustment gear; 603. Feedback plate; 7. Cleaning... 8. High-pressure jet ring; 9. Adjusting ring; 901. Adjusting blade; 902. Adaptive seat; 903. Adaptive slide; 904. Guide plate; 905. Pressurizing spring; 10. Waste liquid recovery assembly; 1001. Recovery plate; 1002. Cleaning frame; 1003. Cleaning spring; 1004. Filter screen; 1005. Impurity removal motor; 1006. Pressurized fan blade; 1007. Impurity removal pipe; 1008. Impurity removal ring; 1009. Pressurized cam; 11. Infrared scanning assembly; 1101. Infrared emitting plate; 1102. Infrared detection plate. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] The cleaning device includes a cleaning tank 1 and a water supply pipe. A sealing cover 2 is rotatably connected to the cleaning tank 1. A printing roller mounting frame 3 is installed inside the cleaning tank 1 and is slidably connected to the cleaning tank 1. Multiple cleaning nozzles 5 are installed inside the cleaning tank 1. A cleaning pipeline 4 is installed on the cleaning tank 1 and is connected to each cleaning nozzle 5 via a conduit. An adjustment box 6 is installed inside the cleaning tank 1 and is rotatably connected to the cleaning nozzles 5. A cleaning sleeve 7 is installed on the printing roller mounting frame 3, and a high-pressure air jet ring 8 is installed on the cleaning sleeve 7. The high-pressure air jet ring 8 is connected to an air pump. An adjustment ring 9 is installed on the printing roller mounting frame 3 and is slidably connected to the printing roller mounting frame 3. A pressure regulating valve is installed on the cleaning tank 1 and is connected to the cleaning tank 1. A pressure regulating valve is installed at the bottom of the cleaning tank 1. Equipped with a waste liquid recovery component 10, during the cleaning process, cleaning liquid is supplied to the cleaning pipeline on the cleaning tank via a water supply pipe. The cleaning liquid then enters the cleaning pipeline and is distributed to each cleaning nozzle, from which the supplied liquid is discharged. The printing roller is installed into the printing roller mounting frame, and the cleaning liquid falls onto the printing roller to clean it. Simultaneously, during the cleaning process, the high-pressure jet ring on the cleaning sleeve blows air along the printing roller, working in conjunction with the cleaning liquid to ensure that the cleaning liquid flows fully on the printing roller, thereby thoroughly cleaning the printing roller and avoiding corrosion problems caused by prolonged adhesion of the cleaning liquid. At the same time, the adjusting ring can fully regulate the airflow direction, allowing the airflow to circulate around the printing roller and ensuring that the cleaning liquid is fully distributed on the printing roller.
[0030] The printing roller mounting frame 3 includes a mounting ring 301 and a connecting frame 302. The connecting frame 302 is mounted on the mounting ring 301. A secondary mounting ring 303 is provided at the end of the connecting frame 302 away from the mounting ring 301. The adjusting ring 9 is slidably connected to the connecting frame 302. The secondary mounting ring 303 and the mounting ring 301 are rotatably connected to the connecting frame 302. A rotary motor 304 is provided in the adjusting box 6. The output end of the rotary motor 304 is connected to the mounting ring 301. A locking piece 305 and a locking spring 306 are provided in the mounting ring 301 and the secondary mounting ring 303. The locking piece 305 is rotatably connected to the mounting ring 301. When the locking piece is opened, the printing roller is installed into the mounting ring and the secondary mounting ring. Then the locking piece is closed, and the printing roller will be fixed. Then, under the action of the rotary motor, the mounting ring will drive the printing roller to rotate, and the secondary mounting ring will also rotate. The locking spring will fix the locking piece, and the locking piece will firmly lock the printing roller to ensure that the printing roller will not fall off.
[0031] A movable lead screw 307 is installed inside the connecting frame 302, and the movable lead screw 307 is rotatably connected to the connecting frame 302. The outer edge of the mounting ring 301 is provided with teeth, and the end of the movable lead screw 307 near the mounting ring 301 is also provided with teeth. The mounting ring 301 meshes with the teeth on the movable lead screw 307. An adjusting ring 9 is fitted onto the movable lead screw 307 and meshes with the thread on the movable lead screw 307. A guide hole 308 is provided on the mounting ring 301, and a guide spring 309 is installed inside the guide hole 308. The guide spring 309 is fixedly connected to the guide hole 308. (The last sentence appears to be incomplete and possibly refers to a different process.) During the washing process, the mounting ring will rotate, and the teeth on the mounting ring will drive the moving screw to rotate. When the moving screw rotates, it will drive the adjusting ring to move. After the adjusting ring moves, it controls the spray position of the gas sprayed from the high-pressure air gun, so that the airflow can flow fully to the printing roller. This allows the cleaning liquid and airflow to fully remove the oil film on the printing roller. Some of the airflow will pass through the guide hole and the guide spring, and enter the slide in the connecting frame, thereby reducing the problem of sludge accumulation that prevents the adjusting ring from moving smoothly.
[0032] Multiple adjusting blades 901 are evenly arranged on the adjusting ring 9. An adapting seat 902 is provided inside the adjusting ring 9. The connecting end of each adjusting blade 901 is rotatably connected to the adapting seat 902 via a rotating shaft. An adapting slide 903 is provided inside the adjusting ring 9, and the adapting seat 902 slides in contact with the adapting slide 903. A guide plate 904 is provided on the connecting end of the adjusting blade 901, and the guide plate 904 is embedded in and slides in contact with the adapting slide 903. A pressing spring 905 is provided on the adapting seat 902, and the pressing spring 905 abuts against the adjusting ring 9 and slides in contact with the adapting slide 903. The adjusting ring is installed as a ring. Under the action of the gas, the adjusting blades on the adjusting ring will change as the adapting seat moves. When it gets close to the high-pressure jet ring, the gas will drive the adapting seat closer to the adapting slide. As it goes deeper, the guide plate is embedded deeper into the adapting slide, and the rotation angle of the adjusting blades is larger. At this time, the force of the gas acting on the nearby printing rollers is reduced, reducing the impact of the high-pressure gas on the printing rollers. As it moves further away, under the action of the pressure spring, the adapting seat gradually moves away from the adapting slide, and the deflection angle of the adjusting blades becomes smaller, so that the high-pressure gas is fully utilized, and the force acting on the printing rollers is not much different from the impact force on the front printing rollers.
[0033] An adjustment motor 601 is installed inside the adjustment box 6. An adjustment gear 602 is installed on the output end of the adjustment motor 601. The cleaning nozzle 5 is provided with teeth, which mesh with the adjustment gear 602 on the adjustment motor 601. A feedback plate 603 is installed on the adjustment box 6. An infrared scanning component 11 is installed on the feedback plate 603. The infrared scanning component 11 is electrically connected to the adjustment motor 601 through wires. During the cleaning process, under the action of the infrared scanning component, the shape of the printing roller cleaning surface and the depth of some grooves will be obtained. Based on the detected shape, the adjustment motor will drive the cleaning nozzle to rotate through the adjustment gear, so that the cleaning nozzle can thoroughly clean the printing roller and reduce impact damage to the printing roller.
[0034] The infrared scanning assembly 11 includes an infrared emitting plate 1101 and an infrared detection plate 1102. The infrared detection plate 1102 is electrically connected to the adjusting motor 601 via wires. The infrared emitting plates 1101 are respectively set on the same side of the printing roller mounting frame 3, and the infrared detection plates 1102 are respectively set on the side of the printing roller mounting frame 3 away from the printing roller mounting frame 3. The infrared emitting plate emits infrared rays, which are detected by the infrared detection plate to detect the shape of the printing roller. When a deep groove appears, the adjusting motor drives the cleaning nozzle to rotate downward, thereby removing ink and other substances in the groove. When it is relatively flat, the adjusting motor drives the cleaning nozzle to rotate upward, reducing damage to the printing roller surface and avoiding problems such as dents.
[0035] The cleaning nozzle 5 is equipped with a spray housing 501, and a traction frame 502 is installed inside the spray housing 501. The traction frame 502 is slidably connected to the spray housing 501, and a sliding weight 503 is installed on the traction frame 502. The sliding weight 503 is fixedly connected to the traction frame 502 and slidably connected to the spray housing 501. Dispersion springs 504 are installed on the spray nozzles of the spray housing 501. The end of the traction frame 502 away from the sliding weight 503 slides in contact with the dispersion springs 504 inside the spray nozzle. During spraying, the adjusting motor will drive the spray housing to rotate, spraying... During the rotation of the spray head, the sliding weight will shift due to gravity and drive the traction frame to move. When the spray head sprays upward, the traction frame will press against the dispersing spring, making the dispersing spring straight. At this time, the sprayed cleaning liquid is mostly dispersed under the action of the dispersing spring, which can reduce the impact on the printing roller and reduce the impact damage to the groove part. When the spray head sprays upward, the traction frame will press against the dispersing spring, causing the dispersing spring to bend. The bent dispersing spring will no longer block the cleaning liquid, and the cleaning at this time will also have a greater impact force, which can wash the stains with high intensity.
[0036] The waste liquid recovery assembly 10 includes a recovery plate 1001 with multiple recovery holes. Each recovery plate 1001 contains a cleaning rack 1002, which slides in contact with the recovery holes. A cleaning spring 1003 is installed on the cleaning rack 1002, with its two ends connected to the cleaning rack 1002 and the bottom of the inner wall of the cleaning tank 1, respectively. The bottom of the cleaning tank 1 has a discharge port with a filter screen 1004. During waste liquid recovery, the cleaning liquid falls onto the recovery plate and flows through the recovery holes to the discharge port. When the cleaning liquid falls onto the cleaning rack, the cleaning rack slides within the recovery holes. Under the action of the cleaning spring, the cleaning rack repeatedly slides within the recovery holes, thereby removing oil stains adhering to the discharge port, preventing oil accumulation, and ensuring the flow effect of the recovery plate.
[0037] A cleaning motor 1005 is installed at the discharge port. A pressure fan blade 1006 is installed at the output end of the cleaning motor 1005. The pressure fan blade 1006 is rotatably connected to the discharge port. A cleaning pipe 1007 is installed at the discharge port away from the recovery plate 1001. A cleaning ring 1008 is installed on the cleaning pipe 1007. A pressure cam 1009 is installed inside the cleaning pipe 1007, and the pressure cam 1009 is rotatably connected to the cleaning ring 1008. The pressure cam 1009 is connected to the cleaning pipe 1007. When the outer wall is in sliding contact, natural drainage alone may not be enough to remove the cleaning fluid in time during waste liquid recycling. In this case, the impurity removal motor needs to be started to rotate. The impurity removal motor drives the pressure fan blades to rotate, generating sufficient negative pressure. The cleaning fluid is discharged from the cleaning tank under the action of suction. At the same time, in order to avoid the cleaning fluid from clogging the outlet, the impurity removal ring can be moved. The pressure cam on the impurity removal ring will pressurize the impurity removal tube, so that the dirt can be removed in time and reduce the occurrence of clogging problems.
[0038] The working principle of this invention is as follows: Open the locking piece 305, install the printing roller into the mounting ring 301 and the mounting sub-ring 303, then tighten the locking piece 305. At this time, the printing roller will be fixed and pass through the adjusting ring 9. Subsequently, under the action of the rotary motor 304, the mounting ring 301 will drive the printing roller to rotate, and the mounting sub-ring 303 will also rotate. Cleaning liquid will be supplied from the water supply pipe to the cleaning pipeline 4 on the cleaning tank. The cleaning liquid will then enter the cleaning pipeline 4 and be distributed to each cleaning nozzle 5. The cleaning nozzle 5 will discharge the supplied liquid, which falls onto the printing roller. Under the action of the infrared scanning component 11, the shape of the cleaning surface of the printing roller and the depth of some grooves will be obtained. Based on the detected shape, the adjusting motor 601 will drive the cleaning nozzle 5 to rotate through the adjusting gear, so that the cleaning nozzle 5 can thoroughly clean the printing roller. At the same time, during the cleaning process, the high-pressure jet ring 8 on the cleaning sleeve 7 will... Air is blown onto the printing roller. The adjusting blade 901 on the adjusting ring 9 will change as the adapting seat 902 moves. When it approaches the high-pressure jet ring 8, the gas will drive the adapting seat 902 closer to the adapting slide 903. As it goes deeper, the guide plate 904 is embedded deeper into the adapting slide 903, and the rotation angle of the adjusting blade 901 is larger. At this time, the force of the gas acting on the nearby printing roller is reduced, reducing the impact of the high-pressure gas on the printing roller. As it moves further away, under the action of the pressure spring 905, the adapting seat 902 gradually moves away from the adapting slide 903, and the deflection angle of the adjusting blade 901 becomes smaller, so that the high-pressure gas can be fully utilized, avoiding the corrosion problem caused by the long-term adhesion of the cleaning liquid. This allows the cleaning liquid to be fully distributed on the printing roller. The impurity removal motor 1005 is started to rotate. The impurity removal motor 1005 drives the pressure fan blade 1006 to rotate, generating sufficient negative pressure. The cleaning liquid is discharged from the cleaning box 1 under the action of suction.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A cleaning device for multi-angle cleaning of printing rollers, characterized in that: The cleaning device includes a cleaning box (1) and a water supply pipe. A sealing cover (2) is rotatably connected to the cleaning box (1). A printing roller mounting frame (3) is installed inside the cleaning box (1). The printing roller mounting frame (3) is slidably connected to the cleaning box (1). Multiple cleaning nozzles (5) are installed inside the cleaning box (1). A cleaning pipeline (4) is installed on the cleaning box (1). The cleaning pipeline (4) is connected to each cleaning nozzle (5) through a conduit. An adjustment box (6) is installed inside the cleaning box (1). The nozzle (5) is rotatably connected to the adjustment box (6). A cleaning sleeve (7) is provided on the printing roller mounting frame (3). A high-pressure jet ring (8) is provided on the cleaning sleeve (7). The high-pressure jet ring (8) is connected to the air pump. An adjustment ring (9) is provided on the printing roller mounting frame (3). The adjustment ring (9) is slidably connected to the printing roller mounting frame (3). A pressure regulating valve is provided on the cleaning box (1). The pressure regulating valve is connected to the cleaning box (1). A waste liquid recovery component (10) is provided at the bottom of the cleaning box (1). The printing roller mounting frame (3) includes a mounting ring (301) and a connecting frame (302). A movable lead screw (307) is provided inside the connecting frame (302). The movable lead screw (307) is rotatably connected to the connecting frame (302). The outer edge of the mounting ring (301) is provided with teeth. The movable lead screw (307) is provided with teeth at one end near the mounting ring (301). The mounting ring (301) meshes with the teeth on the movable lead screw (307). The adjusting ring (9) is sleeved on the movable lead screw (307) and meshes with the thread on the movable lead screw (307). A guide hole (308) is provided on the mounting ring (301). A guide spring (309) is provided inside the guide hole (308). The guide spring (309) is fixedly connected to the guide hole (308).
2. The cleaning device for multi-angle cleaning of printing rollers according to claim 1, characterized in that: The connecting frame (302) is mounted on the mounting ring (301). A mounting sub-ring (303) is provided at the end of the connecting frame (302) away from the mounting ring (301). The adjusting ring (9) is slidably connected to the connecting frame (302). The mounting sub-ring (303) and the mounting ring (301) are rotatably connected to the connecting frame (302) respectively. A rotary motor (304) is provided in the adjusting box (6). The output end of the rotary motor (304) is connected to the mounting ring (301). A locking piece (305) and a locking spring (306) are provided in the mounting ring (301) and the mounting sub-ring (303). The locking piece (305) is rotatably connected to the mounting ring (301).
3. The cleaning device for multi-angle cleaning of printing rollers according to claim 1, characterized in that: Multiple adjusting blades (901) are evenly arranged on the adjusting ring (9). An adaptation seat (902) is provided inside the adjusting ring (9). The connecting end of each adjusting blade (901) is rotatably connected to the adaptation seat (902) through a rotating shaft. An adaptation slide (903) is provided inside the adjusting ring (9). The adaptation seat (902) slides in contact with the adaptation slide (903). A guide plate (904) is provided on the connecting end of the adjusting blade (901). The guide plate (904) is embedded in the adaptation slide (903) and slides in contact with the adaptation slide (903). A pressing spring (905) is provided on the adaptation seat (902). The pressing spring (905) abuts against the adjusting ring (9) and slides in contact with the adaptation slide (903).
4. A cleaning device for multi-angle cleaning of printing rollers according to claim 1, characterized in that: An adjustment motor (601) is provided inside the adjustment box (6). An adjustment gear (602) is provided on the output end of the adjustment motor (601). The cleaning nozzle (5) is provided with teeth. The teeth on the cleaning nozzle (5) mesh with the adjustment gear (602) on the adjustment motor (601). A feedback plate (603) is provided on the adjustment box (6). An infrared scanning component (11) is provided on the feedback plate (603). The infrared scanning component (11) is electrically connected to the adjustment motor (601) through a wire.
5. A cleaning device for multi-angle cleaning of printing rollers according to claim 4, characterized in that: The infrared scanning component (11) includes an infrared emitting plate (1101) and an infrared detection plate (1102). The infrared detection plate (1102) is electrically connected to the adjusting motor (601) through a wire. The infrared emitting plates (1101) are respectively arranged on the same side of the printing roller mounting frame (3), and the infrared detection plates (1102) are respectively arranged on the side of the printing roller mounting frame (3) away from the printing roller mounting frame (3).
6. A cleaning device for multi-angle cleaning of printing rollers according to claim 5, characterized in that: The cleaning nozzle (5) is provided with a spray housing (501), and a traction frame (502) is provided inside the spray housing (501). The traction frame (502) is slidably connected to the spray housing (501). A sliding weight (503) is provided on the traction frame (502). The sliding weight (503) is fixedly connected to the traction frame (502). The sliding weight (503) is slidably connected to the spray housing (501). A dispersion spring (504) is provided on the spray nozzle on the spray housing (501). The end of the traction frame (502) away from the sliding weight (503) is in sliding contact with the dispersion spring (504) inside the spray nozzle.
7. A cleaning device for multi-angle cleaning of printing rollers according to claim 1, characterized in that: The waste liquid recovery assembly (10) includes a recovery plate (1001), which has multiple recovery holes. Each recovery plate (1001) has a cleaning rack (1002) which slides in contact with the recovery holes. The cleaning rack (1002) has a cleaning spring (1003) which is connected to the cleaning rack (1002) and the bottom of the inner wall of the cleaning box (1) at both ends. The bottom of the cleaning box (1) has a discharge port, and a filter screen (1004) is provided on the discharge port.
8. A cleaning device for multi-angle cleaning of printing rollers according to claim 7, characterized in that: A cleaning motor (1005) is provided on the outlet. A pressurizing fan blade (1006) is provided on the output end of the cleaning motor (1005). The pressurizing fan blade (1006) is rotatably connected to the outlet. A cleaning pipe (1007) is provided on the outlet away from the recovery plate (1001). A cleaning ring (1008) is provided on the cleaning pipe (1007). A pressurizing cam (1009) is provided inside the cleaning pipe (1007). The pressurizing cam (1009) is rotatably connected to the cleaning ring (1008). The pressurizing cam (1009) slides in contact with the outer wall of the cleaning pipe (1007).