钢帘线残余扭转在线监测及自动消除控制系统设计

Design of on-line monitoring and automatic elimination control system for residual torsion of steel cord

钢帘线在捻制的过程中会产生残余扭转,导致钢帘线在捻制完成后沿捻制相反的方向出现不同程度的回转,严重影响钢帘线的使用性能。为了减小钢丝捻制过程中出现的残余扭转,设计了钢帘线残余扭转在线监测及自动消除控制系统。利用西门子S7-200系列PLC(programmable logic controller,可编程逻辑控制器)对控制系统的软件和硬件进行合理配置,并详细阐述了系统的硬件和软件设计。采用台达DOP系列的触摸屏,实现钢帘线残余扭转在线实时监测的功能。该设备整机性能稳定,实现了残余扭转的控制与消除,满足生产线高柔性化、高效率、高质量的自动化生产要求。

The steel cord will produce residual torsion stress during twisting,which will cause dif-ferent degrees of rotation opposite the twisting direction after the twisting progress is finished,and it will seriously affect the performance of steel cord.In order to reduce the residual torsion stress in the process of wire twisting,the on-line monitoring and automatic elimination control system for the residual torsion of steel cord was designed.The software and hardware of the con-trol system were reasonably configured by the SIEMENS S7-200 series PLC(programmabee logic controller),and the hardware and the software design of the system were expounded in detail.The touch screen of the delta DOP series was used to realize the on-line real-time monitoring of the residual torsion value of steel cord.The whole machine has stable performance and realizes the control and elimination of the residual torsion,which meets the requirements of automatic production with high flexibility,high efficiency and high quality in the production line.