以印刷机下摆式前规机构为设计对象，对前规机构的运动性能进行了理论分析，并对其结构进行了参数化设计。在此基础上，基于VB平台，对前规机构的运动分析及结构设计方法进行了集成，开发了参数化机构设计系统，为前规机构的设计开发提供设计平台。

The motion performance of press swinging front lay was analyzed theoretically and its parametric structure design was carried out. On the basis of the visual basic platform, the motion analysis method and structure design was integrated. The parametric design system was developed, which can supply a design platform for swinging front lay under paper-transferring plate.