Online Real-time Anilox Cleaning Technology and Cleaning Cycle Optimization for High-speed Flexo Press
This technical research focuses on online non-stop anilox cleaning technology adapted to high-speed servo flexo presses,builds cleaning cycle optimization model based on printing mileage,and realizes zero downtime anilox roller maintenance.
Traditional offline anilox cleaning requires machine shutdown and roller disassembly,causing unavoidable production downtime and repeated parameter debugging after roller reinstallation.Online real-time anilox cleaning system realizes synchronous roller cleaning during normal press operation without affecting continuous printing production,which is critical for 24-hour uninterrupted flexo production lines.
Structure and working principle of online anilox cleaning unit.The online cleaning module consists of rotary cleaning brush,closed cleaning liquid nozzle and residue suction recovery device.The soft nylon brush contacts roller surface gently,spraying matched cleaning liquid synchronously to dissolve residual ink,and waste residue is recycled immediately to avoid secondary pollution to printing units.
High Speed Flexo Printing Machine - Stack Flexo Flexo Printing Machine
Cleaning cycle optimization model based on actual printing mileage.According to experimental data,high-line anilox rollers above 600LPI produce obvious cell residue after every 45000 meters printing mileage,requiring automatic online cleaning.Low-line rollers below 300LPI only need cleaning after every 80000 meters printing mileage due to larger cell volume and weaker residue accumulation tendency.
Cleaning liquid formula matching for different ink types.Water-based ink matches alkaline water-based cleaning liquid with fast residue dissolving speed;UV cured ink needs special solvent composite cleaning liquid to decompose cross-linked cured ink;solvent-based ink adopts low-volatility neutral cleaning agent to avoid secondary chemical reaction.
Online cleaning parameter linkage with printing speed.The system automatically adjusts brush rotating speed and cleaning liquid spray volume following press running speed.Higher printing speed brings faster roller rotation and more residue accumulation,so cleaning strength is increased synchronously to keep consistent cleaning effect at variable production speeds.
Actual production benefit of online anilox cleaning:eliminate all offline roller disassembly downtime,reduce color fading defect rate caused by cell blockage by 89%,keep stable ink transfer consistency in full production cycle,and extend anilox roller service life by 22% compared with offline regular cleaning mode.
