杯壁成型机构是全自动纸杯成型机完成纸质杯杯壁成型的主要机构，为确保其工作可靠和纸质杯杯壁成型质量，运用虚拟样机技术，建立了JBZ-B型自动纸杯成型机杯壁成型机构的三维实体模型，并对其进行了运动仿真。分析了杯壁成型机构在不同工作状态下的运动特性，以及对纸质杯杯壁成型质量的影响，为产品质量控制提供了参考依据。

Cup wall forming mechanisms are the major mechanisms of automatic paper cup forming machine to complete a paper cup. To ensure reliable and forming quality of paper cup wall, virtual prototype technology was applied. The three-dimensional solid model of cup wall forming mechanism of JBZ-B type automatic paper cup forming machine was established and the kinetic simulation was carried out. Its motion characteristics under different working conditions as well as effect on the shaping quality of paper cup were analyzed. The purpose was to provide reference for product quality control.