目的 为解决现有的纸箱自动化包装生产线上纸箱封装机的折页机构折侧页不可靠、无法对多规格的纸箱进行折页的问题，设计一种可靠、适用于多规格的纸箱折页机构以提高纸箱包装质量和包装效率。方法 通过对折页功能、纸箱状态和封装机整体进行分析研究，设计2组纸箱折页机构;用机构的动态静力分析方法对2组折页机构进行运动学分析和动力学分析，用Matlab对运动学方程和动力学方程求解;用SolidWorks软件对2组折页机构进行结构设计和三维建模;将所设计的2组折页机构实物组装在封装机上进行现场试验。结果 运动学分析结果表明，2组折页机构带动纸箱页旋转的最终角位移能够准确地使纸箱页完成折叠工作;动力学分析结果表明，2组折页机构所需的驱动力矩和驱动力符合动力元件的力矩和力的使用范围。现场试验结果表明，所设计的折页机构能够对多种规格的纸箱实现可靠的折页工作。结论 该纸箱折页机构能够可靠地完成不同规格的纸箱折页工作，实现了纸箱折页的自动化与柔性化，可在一定程度上提高纸箱包装生产线的包装效率。

The work aims to design a reliable and suitable carton folding of multiple specifications to solve the problem that the folding mechanism of the carton packaging machine on the existing carton automatic packaging production line is unreliable and cannot fold the carton of multiple specifications, so as to improve the quality and efficiency of carton packaging. By analyzing and researching the folding function, carton status and the packaging machine as a whole, two carton folding mechanisms were designed; the dynamic static analysis method of the mechanism was used. Matlab was used to solve the kinematics and dynamics equations; SolidWorks software was used to carry out structural design and three-dimensional modeling of the two folding mechanisms. The two folding mechanisms designed were assembled on the packaging machine for on-site testing. The kinematic analysis results showed that the final angular displacements of the two folding mechanisms driving the carton page rotation can accurately make the carton pages complete the folding work; the dynamic analysis results showed that the driving torque and driving force required by the two folding mechanisms conformed to the use range of torque and force of power components. Field test results showed that the designed folding mechanism could achieve reliable folding of cartons of various specifications. The carton folding mechanism can reliably complete carton folding of different specifications and realize the automation and flexibility of carton folding, and can improve the packaging efficiency of the carton packaging production line to a certain extent.