【作者】 陈雪；

【导师】 尹周平；

【作者基本信息】 华中科技大学 ， 机械电子工程， 2009， 硕士

【摘要】 射频识别技术(Radio Frequency Identification)是21世纪最有发展前景的信息技术之一,作为电子标签生产的RFID标签封装设备的研制意义重大。RFID标签封装设备由基板输送(送料、收料)、点胶、翻转贴装、热压、后检测模块组成。其中基板输送模块要保证非连续进给运动中的张力恒定控制及基板精确位置进给,基板贯穿于整个RFID标签封装设备各个模块,因此对基板输送系统的深入研究十分重要。本文主要研究内容是面向柔性基板输送试验平台,根据试验要求搭建试验平台,对关键零部件进行有限元优化设计,并对基板输送系统的张力控制进行试验分析。主要内容从以下三个方面展开论述:首先,根据设计要求,搭建了柔性基板输送试验平台,设计了摆臂浮辊、模组浮辊和张力传感器控制等三种张力部件,改进了以往的张力控制结构,实现了多种张力控制布局方案的转换,为后续关键技术的研究提供了良好的平台。其次,基于有限元分析对试验平台中对恒定张力控制具有重要影响的摆臂结构进行了优化设计,对摆臂进行了拓扑优化和尺寸优化并进行了强度校核和模态分析,最终确定了摆臂的优化结构,满足性能要求的同时又大大的节省了材料。最后,根据基板输送的工况要求,对三种张力控制方案进行了介绍与分析,并在不同工况下对基板输送系统控制总图基于运动控制卡的力/位反馈控制方法进行试验,通过对张力波动、进给位置精度及进给时间进行分析,研究了张力波动的影响因素等,实现了间歇进给的恒定张力控制。本文的研究成果对提高RFID标签封装设备的性能及效率具有重要作用,为基板输送系统的两个关键技术的深入研究提供了良好的基础平台,同时也给类似柔性薄膜输送系统的研发提供技术参考。更多还原

【Abstract】 The radio frequency identification technology is one of the most promising information technologies in the 21th century. Therefore, it’s very significant to develop RFID tag-package equipments. A RFID tag-package equipment includes five modules, they are web conveyance module, dispensing module, flip-chip bonding module, heat-press module and testing module. As a necessary part of the equipment, Web conveyance module’s function is to make sure the Substrate runs to the designated location under the constant tension.The main content of this paper is to design the flexible web conveyance test platform and research the tension control system. Including:Fistly, this paper set up a flexible web conveyance test platform according to experiment requirements, designed a new tension control structure by introducing active dancer axis and passive spring-swing device. This platform could converse a wide range of tension control layoust. It played an important role in the following research on the key technologies.Secondly, this paper optimized and analysed the swing arm by finite element software-ANSYS. Gained the basic shape by topology optimization, attained geometric structure by thickness of the size optimization, ultimately ascertained the optimal structure of the swing which meets the performance requirements and saves material at the same time.Finally, this paper put forward three tension control methods according to the requirements of the woking conditions. Experimented the tension/position double loops feedback control solution based on PMAC towards to the general tension control layout, researched the influencing factors of tension fluctuation. The system could achieve constant tension control under intermittent feeding.The conclusion of this paper could improve the proformance and efficiency of the RFID tag-package equipment, on the other hand, it may provide some useful guidance to the related applications.更多还原