目的 基于SDB-1型平装书籍打包机，以最大压力角的最小化为优化目标，对其推书机构进行优化设计。方法 利用坐标轮换法和黄金分割法分别对推书机构的摆杆滑块机构和摆动从动件凸轮机构进行优化，在Matlab中求得最优解。结果 优化得到了推书机构的最优杆长以及最大压力角的最小值。 结论 优化后的推书机构具有更好的传力性能，使得推书过程更加平稳。

The work, based on the SDB-1 type paperbound packer, aims to optimize the design of pushing mechanism with the minimization of the maximum pressure angle as the optimization goal. By using the coordinate rotation method and the golden section method, the rocker-slider mechanism of the pushing mechanism and the oscillating follower of cam mechanism were optimized, and the optimal solution was obtained in Matlab. After the optimization, the optimal rod length of the pushing mechanism and the minimum value of the maximum pressure angle were obtained. The optimized pushing mechanism has better force transmission properties, with which the pushing process becomes more stable.