应用于泡罩包装机的双色柔版在线印刷单元结构设计  

Design of Double-Color Flexographic Printing Unit for Blister Packaging Machine

作　　者：李荣伟 施睿 李旦洋 LI Rong-wei;SHI Rui;LI Dan-yang(Hangzhou Zhong Yi Automation Equipment Co.,Ltd,Hangzhou 310021,China)

机构地区：[1]杭州中意自动化设备有限公司,杭州310021

出　　处：《数字印刷》2020年第4期52-58,共7页Digital Printing

摘　　要：本研究针对当前泡罩包装机中柔版印刷单元印刷色调单一问题,设计了应用于医疗器械行业泡罩包装机的双色在线印刷单元,利用包装机步进移动、间隙启停的工作特性,结合柔性版印刷的工作原理,采用在承印滚轴两侧各布置一个印刷滚筒的结构设计,实现双色印刷。相应配套两个上墨系统,分别相对于两个印刷滚筒运动,实现上墨。在承印滚轴上方,还设置有与其平行的调节滚轴和读色标装置,调整调节滚轴位置,以确保两个印刷滚筒的启印点都位于印版的启印点上,实现正确的双色套准。为消除因纸张的张力变化和移动而产生的印刷套准误差,在印刷第一色时,印上色标点,通过读取色标点位置的偏移量,即时微调第二色印刷滚筒的启印点位置,以纠正版面套准误差,提高印刷质量。本研究设计的双色柔板在线印刷单元可直接纳入到医疗产品包装生产环节,广泛应用于医疗器械生产厂家。In this study,in response to the single color tone difficulties of flat flexographic printing machines in the blister packaging machine,an online synchronous running printing unit developed for the blister packaging machine used in the medical device industry was designed.Based on the stepping movement of the packaging machine and the gap start and stop working characteristics,combined with the working principle of flexographic printing,the structural design of one adapting printing roller on each side of the printing roller was adopted to achieve doublecolor printing.Corresponding to the two printing rollers were also provided with two inking units,which could be worked relative to the two printing rollers respectively to achieve inking.Above the adapting printing roller,the printing unit was also provided with an adjustment roller and the photocell to register the eye mark in parallel.The position of the adjustment roller could be adjusted to ensure that the starting points of the two printing rollers were located on the starting points of the layout to achieve double-color correct color registration.To eliminate the change of tension and movement error caused by the paper,when the first color was printed,the color dots were printed at the same time.By reading the offset of the position of the color dots,the location of the second color printing roller could be fine-tuned in real-time to rectify the errors in the registration and improve the printing quality.The structure could be directly incorporated into the production of medical product packaging.It is being adopted by more and more medical device manufacturers.

关 键 词：双色柔性版印刷单元 包装机 同步运行 医疗产品包装 即时纠偏 

分 类 号：TS802.3[轻工技术与工程] TQ317[化学工程—高聚物工业]