以一种平底软包装容器底部的折叠成型为研究对象，通过对包装薄膜折叠成型过程的受力分析，建立了成型装置主要结构参数的理论关系。在基本实验的基础上，进一步探讨了主要结构参数的影响和确定，并通过Pro/E对多目标参数设计实施了进一步的优化，形成了初步的理论设计结果，为折叠成型装置设计提供参考。

The bottom of a kind of flexible packaging container folding forming was taken as the research object. By analyzing the structure characteristics of the packaging film folding forming process, the theoretic relations among the forming device major structure parameters were established. The influence of the main structure parameters was discussed and confirmed based on basic experiment. Further multi-objective optimization of the parameters design was carried out using Pro/E to get preliminary results of the theory design. The purpose was to provide reference for folding forming device design.