北京工业大学学报
北京工業大學學報
북경공업대학학보
JOURNAL OF BEIJING POLYTECHNIC UNIVERSITY
2015年
6期
816-822
,共7页
胶印机%着墨辊%流固耦合%着墨率
膠印機%著墨輥%流固耦閤%著墨率
효인궤%착묵곤%류고우합%착묵솔
offset printing machine%inking roller%fluid-structure interaction%inking ratio
胶印机输墨系统的油墨通过着墨部分传递到承印物上，所以着墨部分性能的好坏对印品的质量有重要的影响。运用有限元模拟软件Ansys Workbench对着墨过程进行模拟仿真，研究当印版网点面积率为100%时，着墨辊与印版间的压力和印刷速度对着墨过程的影响。通过分析可以得出：随着着墨辊和印版间压力的增加，着墨辊1、2的着墨率有增加的趋势，而着墨辊3、4的着墨率则有减小的趋势；随着印刷速度的增加，着墨辊1的着墨率有逐渐变小的趋势，而着墨辊2、3、4的着墨率有逐渐变大的趋势。
膠印機輸墨繫統的油墨通過著墨部分傳遞到承印物上，所以著墨部分性能的好壞對印品的質量有重要的影響。運用有限元模擬軟件Ansys Workbench對著墨過程進行模擬倣真，研究噹印版網點麵積率為100%時，著墨輥與印版間的壓力和印刷速度對著墨過程的影響。通過分析可以得齣：隨著著墨輥和印版間壓力的增加，著墨輥1、2的著墨率有增加的趨勢，而著墨輥3、4的著墨率則有減小的趨勢；隨著印刷速度的增加，著墨輥1的著墨率有逐漸變小的趨勢，而著墨輥2、3、4的著墨率有逐漸變大的趨勢。
효인궤수묵계통적유묵통과착묵부분전체도승인물상，소이착묵부분성능적호배대인품적질량유중요적영향。운용유한원모의연건Ansys Workbench대착묵과정진행모의방진，연구당인판망점면적솔위100%시，착묵곤여인판간적압력화인쇄속도대착묵과정적영향。통과분석가이득출：수착착묵곤화인판간압력적증가，착묵곤1、2적착묵솔유증가적추세，이착묵곤3、4적착묵솔칙유감소적추세；수착인쇄속도적증가，착묵곤1적착묵솔유축점변소적추세，이착묵곤2、3、4적착묵솔유축점변대적추세。
The performance of inking part of an offset printing machine has an important impact on the quality of printing product because its function is to transfer ink onto the substrate. In this paper, the finite element simulation software Ansys Workbench is used to simulate the inking process, and the influence of the pressure between the inking roller and the plate and the printing speed on the inking process is analyzed when the dot percentage is 100%. Results show that the inking ratio of the first two inking rollers has an increasing trend, however, the inking ratio of the other two inking rollers has an opposite trend along with increasing pressure between the inking roller and the plate. With the increase of the printing velocity, the inking ratio of the first inking rollers has a decreasing trend and inking ratio of the other three inking rollers has an opposite trend.
