目的 针对国产托盘捆扎机高端产品少、捆扎速度慢等实际状况，开展高性能顶捆穿箭式托盘捆扎关键技术的研究。方法 借鉴国内外的研究经验，提出顶捆穿箭式托盘捆扎机的设计方案，分析捆扎机的工作原理，重点分析捆扎机头的工作原理与传动系统。基于PLC和凸轮组协同控制的原理，设计捆扎执行机构的工作循环图，基于Ansys开展强力捆扎组件的优化设计。结果 捆扎机头仿真分析的最大应力为128.34 MPa，最大变形为0.266 mm，满足机构设计的强度和精度要求。结论 研发出了高性能的顶捆穿箭式托盘捆扎机，能在企业生产中实际应用。

There are some shortcomings in domestic pallet strapping machine, such as lacking of high quality equipment and low production efficiency, etc. This paper aims to study the key techniques of the pallet strapping machine. Based on experience at home and abroad, the design scheme of the vertical pallet strapping machine was proposed. The working principle of the machine was analyzed, with focus on the working principle and drive system of strapping head. The working cycle diagram of the executing mechanism was designed based on PLC and cam control. Strapping component was optimized based on Ansys. In the simulated analysis, the maximum stress of strapping head was 128.34 MPa and maximum deformation 0.266 mm, which met the requirement on strength and accuracy of mechanism design. In conclusion, the vertical pallet strapping machine with high performance is successfully designed and can be applied to the actual production.