印刷机飞达动态特性实验研究-包装工程.PDF

摇 蒋新萍等摇 印刷机飞达动态特性实验研究 摇摇摇 63 印刷机飞达动态特性实验研究 蒋新萍 ,王仪明1 2 (1.常州轻工职业技术学院,常州213164;2.北京印刷学院,北京 102600) 摘要:针对高速飞达工作时因动态特性差造成的输纸不稳问题,研制了飞达动态特性实验平台,并进行了实验 研究。 利用实验平台对飞达凸轮分配轴进行了扭矩动态测试和振动测试,用4 个压电加速度传感器分别测试 了飞达机架、分纸吸嘴、递纸吸嘴、压脚的加速度。 研究表明:印刷机飞达主轴扭矩呈现周期性波动,且随着速 度增加扭矩变化幅值增加;当速度由10 000 张/ h增加到15000 张/ h 时,加速度峰值增加3倍,飞达振动加剧; 应优化凸轮曲线及封闭弹簧布局,降低飞达主轴扭矩波动,提高输纸稳定性。 关键词:印刷机飞达;扭矩测试;振动测试 中图分类号:TS803摇 文献标识码:A摇 文章编号:1001鄄3563(2013)09鄄0063鄄03 Experimental Study of Dynamic Characteristics Separator Head of Print鄄 ing Machine 1 2 JIANGXin鄄ping ,WANG Yi鄄ming (1.Changzhou Instituteof Light IndustryTechnology,Changzhou213164,China;2.BeijingInstituteof Graphic Com鄄 munication,Beijing 102600,China) Abstract:Aiming at thefeedinginstabilityproblemof high鄄speedprintingmachinecausedbybaddynamiccharacter鄄 istics,anexperimentaldeviceof dynamiccharacteristicswasdevelopedandsomeexperimentalinvestigationswerecon鄄 ducted. The dynamic torque and vibration of CAM distribution shaft was tested using the experimental platform. The acceleration of separator headframe,lifting sacker,and delivery sacker,andpressingfootwastestedusingpiezoelec鄄 tric acceleration transducer. The result showed that shown that the torque of separator head changes periodically,and increases suddenly as speed increases;whenthe speedincreasesfrom 10000 s/ hto 15000 s/ h,thepeakof accelera鄄 tion increases three times,and the vibration of separator head intensifies. It was concludedthat cam curve and spring layout should be optimized,soastoreducethevariationoffeedercamshaftstorqueandtoimprovethestabilityofpa鄄 per transferring. Key words:separator head of printing machine;torque test;vibration test 摇 摇 输纸机作为印刷机的重要组成部分,其性能直接 相比较国外输纸机而言,国内的输纸机技术水平 影响到印刷速度和输纸的准确度。 输纸机飞达装置 与国外先进技术仍存在一定的差距。 当印刷速度超 包括压脚机构、分纸吸嘴机构以及递纸吸嘴机构等多