精整机组拉伸弯曲矫直机工艺参数预设定控制模型研究

Study on pre setting control model of tension leveler process parameters for finishing line

本文分析了拉伸弯曲矫直机延伸率闭环控制收敛速度缓慢、导致拉矫产品质量及成材率降低的问题。研究了拉弯矫直生产中板带弹塑性变形机理,建立了延伸率与板形和性能的函数关系、延伸率与弯曲单元插入量的函数关系,以及弯曲单元引起的板带弯曲曲率与矫直单元插入量的函数关系,研发了拉伸弯曲矫直机工艺参数预设定控制模型,能有效提高延伸率闭环控制的收敛速度和控制精度,大大提高拉矫产品质量及成材率。

This paper analyzes the reduction of product quality and yield for tension leveler caused by the slow convergence speed of elongation closed-loop control.The elastic-plastic deformation mechanism of strip in tension bending straightening production was studied.It establishes three functional relationships,including the functional relationship between elongation and strip flatness and performance,the functional relationship between elongation and bending unit insertion,and the functional relationship between strip bending curvature caused by bending unit and straightening unit insertion.The pre setting control model of tension leveler process parameters developed can effectively improve the convergence speed and control accuracy of elongation closed-loop control,which greatly improves the product quality and yield.