【作者】 董淼鑫；

【导师】 赵美宁；

【作者基本信息】 西安工业大学 ， 机械制造及其自动化， 2012， 硕士

【摘要】 旋盖机是用于饮料包装生产线上聚酯瓶的螺纹盖封口,即瓶子分灌装后的瓶盖旋紧或旋松的设备。而理盖机构是旋盖机的关键部件,它保证向旋盖头提供稳定定向正确的瓶盖流。由于目前国内的旋盖机生产效率低,不能满足高速包装生产线的要求,而国外进口设备价格昂贵,影响了中小型饮料企业的使用。影响旋盖机工作效率的主要因素之一就是由于理盖机构的结构参数选取不合理。本文通过聚酯瓶自动旋盖机理盖机构的设计与研究,对旋盖机理盖效率的提高以及以后同类产品的旋盖机设计有着重要的实际意义。本文首先分析了旋盖机的工作原理及理盖的工作过程,对不同的理盖方案进行了分析比较,设计出了一种倾斜料斗式的旋盖机理盖机构,然后具体分析了影响理盖机构理盖效率的结构参数。通过所建立的理盖机构的三维实体模型,采用机械系统动力学仿真软件ADAMS对瓶盖从理盖机构中理出的过程进行动态仿真,通过对不同理盖盘参数下瓶盖运动的运动学的仿真分析,得到瓶盖的受力情况和理盖盘结构参数具体的分析结果,为理盖机构结构参数的设计与优化提供理论依据。针对聚酯瓶瓶盖在理盖过程中出现的磨损变形情况,利用有限元分析软件ANSYS对不同理盖盘参数下瓶盖的受力情况进行静态分析,最终确定了适合理盖机构理盖效率最优的参数结果,达到结构优化的目的。此方法为旋盖机的设计提供了理论依据,同时建模分析技术的运用能够缩短设计周期,提高设计效率和质量,具有一定的参考意义和使用价值。更多还原

【Abstract】 Cap screwing machine is used for thread cover sealing of PET bottle in packaging production line, which is the equipment for the caps tighten or unscrewed after filling the bottle. Cap sorter mechanism is the key part of machine, which provides a stable of the correctly positioned cap flow for the headset. The production efficiency of domestic machine is low. which can not meet production requirements of high-speed packaging production line. The main factors that influence efficiency are unreasonable parameters of the structure. The design and research of mechanism have important significance for the improvement of the efficiency for sorting caps and the design of similar products of capping machine.This paper firstly analyzed the working principle and process of sorting caps of capping machine, through the analysis and comparison of different schemes, the structure parameter that influence the efficiency had been analyzed. The geometric model of the mechanism was constructed. Through the dynamic simulation of cap movement in mechanism with ADAMS, the force of cap at different parameters of turning plate was obtained, which can provide theoretic foundation for the optimization of mechanism.According to deformation and wear of caps appeared in sorting caps, through static analysis of cap surface at different parameters by using ANSYS. the optimal parameters results that suitable for the mechanism were eventually got. which achieved the purpose of optimized structure. This method provides theoretic foundation for the design of capping machine, also improves design efficiency and quality, which has the certain reference meaning and use value.更多还原