针对软管封口旋盖机的工作流程及响应快、精度高的控制要求，设计了以PLC为核心的控制系统，结合交流伺服及其他硬件，对软管封口旋盖的生产流程进行了较好的控制。详细介绍了封口旋盖机的工作流程和控制时序方案，给出了程序流程图、工作时序图。最后提出了旋盖转矩的控制方法以及控制系统的设计方案。该控制系统性能稳定，控制精度高，生产速度快。

According to the workflow and fast response and high accuracy control requirements of tube sealing capping machine, the control system was designed, which was based on PLC, combined with the AC servo and other hardware. Practice showed that the control system can work better on production process of tube sealing capping machine. The work process and the sequence control scheme of sealing capping machine were introduced. The work timing sequence and program flow chart of sealing capping machine was put forward. The capping torque control method and control system design was put forward. The control system is stable, fast speed, high precision.