焊管生产线精整传输系统自动化控制

为了提高焊管生产线精整传输系统的传输效率，保证传输过程的安全性，以S7－300PLC为控制核心，以横移小车和传输辊道为主要控制对象，以西门子SINAMICS G120变频器为执行机构，设计了精整传输自动化控制系统。介绍了该精整传输自动化控制系统的主要组成、通讯方式及控制原理。该自动控制系统基于S7－300PLC可编程控制器、G120变频器和网络技术对生产线的各传输设备以及其他单机系统/设备进行联动控制，并结合信息化系统实现了生产线上焊管的自动传输，提高了传输效率，降低了生产成本。

Finishing Transmission Automatic Control System Introduction for Steel Pipe Manufacturing Enterprise

In order to improve the transmission efficiency of welded pipe production line finishing transmission system, and ensure the safety in the process of transmission, the finishing transmission automation control system was designed. This system was with S7-300PLC as control core, the cross travelling trolley and transmission roller as the main control objects, with Siemens SINAMICS G120 inverter as actuators. In this article, it introduced the main composition, communication mode and control principle of the precision transmission automatic control system. This system conducted coordinated control to S7-300PLC progammble controller，G120 inverter and the transmission equipment of production line and other single machine system/equipment, combined with the information system realized automatic transmission of steel pipe on the production line, improved transmission efficiency and reduced production cost.