摘要
薄膜主动预拉伸机构,主要由大胶辊、小胶辊、压辊、张紧辊、摆臂、导向辊、弹簧、差动变压器以及两级传动系统组成。该机构采用主动拉伸方式,设计了差动变压器、摆臂、拉簧组成的张紧力速差信号的监测环节,使出膜速度与缠绕速度相等,增加压辊作用,从而实现薄膜的主动拉伸。调速系统采用的是闭环PWM型变频调速系统。
The initiative plastic film pre-stretch machinery consists of the big mucus roller, the small mucus roller, the press roller, the tension roller, the wabbly arm, the lead direction roller, spring, the differential transformer, and the two stage transmission system. The mechanism adopted initiative stretch way designed differential transformer, wabbly arm and spring composing the monitor tache for the tension force speed differential signal, and make the sending-film speed equal to winding speed. The differential transformer measures the wabbly arm＇ s displacement. Adding the press roller to realize the initiative sketching. The timing system is used the closed loop of PWM.
出处
《轻工机械》
CAS
2009年第4期66-68,72,共4页
Light Industry Machinery
关键词
薄膜
拉伸机构
闭环控制
变频调速
plastic
film pre-stretch machinery
closed-loop control
frequency conversion timing system
作者简介
陈立胜（1970-），男，山东莱芜人，莱芜职业技术学院机电系讲师，山东科技大学工程硕士研究生，主要从事数控专业教学与研究，已发表论文20余篇。
