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预印花卷烟纸在线定位分切系统的设计

Design of an online registration and rod cutoff system for pre-printed cigarette paper

  • 摘要: 针对ZJ119型卷接机组中在线钢印印刷系统存在的印花跑偏(尤其是变速工况下)、维保强度大等问题,研制了一套在线定位分切系统并拆除了原有的在线钢印印刷装置。该系统需配合使用预印花卷烟纸(预先印刷好钢印图案且带有等距分布可识别标识的专用卷烟纸),通过色标传感器实时检测标识间距,并引入“供纸虚轴”相位补偿机制与基于速度区间自整定的位置式PID控制算法,在线动态修正刀盘切烟位置。以杭州卷烟厂某牌号卷烟为对象验证该系统的应用效果,结果表明:改用预印花卷烟纸及其在线定位分切系统后,变速工况下的烟支不合格率由9.0%~10.0%降低到1.5%~2.0%,供纸系统平均维保时间由31.0 min/班次降至1.3 min/班次。该系统可为提升烟支外观质量与设备有效作业率提供支持,也为预印花卷烟纸后续开发与推广提供了烟支卷制成型的设备保障。

     

    Abstract: To address brand mark misregistration, particularly under variable-speed operating conditions, and the high maintenance workload of the online printing system in the ZJ119 filter cigarette maker, an online registration and rod cutoff system was developed, and the original online printing unit was removed. The system uses pre-printed cigarette paper, i.e., special cigarette paper on which the brand mark pattern is printed in advance and equally spaced detectable registration marks are incorporated. A color mark sensor was used to detect the spacing of registration markers in real time. Meanwhile, a phase compensation scheme based on a paper feed virtual axis and a position-type PID control algorithm with self-tuning based on speed intervals were introduced to dynamically adjust the cigarette rod cutoff position during operation. The system was evaluated using a cigarette brand produced at Hangzhou Cigarette Factory. The results showed that after the adoption of the pre-printed cigarette paper and the online registration and rod cutoff system, the cigarette reject rate under variable-speed operating conditions decreased from 9.0%-10.0% to 1.5%-2.0%, while the average maintenance time of the paper feeding system decreased from 31.0 minute/shift to 1.3 minute/shift. The system can support the improvement in cigarette appearance quality and the effective operating rate of the equipment, and provide the equipment capability required for filter cigarette making during further development and wider adoption of pre-printed cigarette paper.

     

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