Improved method for stretching straightening of strip steel cold rolling and pickling

The invention relates to the field of cold rolling and pickling processes, in particular to an improved method for stretching straightening of strip steel cold rolling and pickling. According to the method, an existing stretching straightener is improved to enable an upper roller and a lower roller to reciprocate in the width direction of strip steel when the strip steel runs, so that the edge of the strip steel passes through all parts within the effective length of the rollers. Therefore, uniform abrasion of a working roll is achieved, the problem of concentrated abrasion is solved, the problems of insufficient acid pickling and plate shape defects caused by non-uniform extension are solved, the online service life of a straightening roll is prolonged, and the problem of high consumption of the roll caused by concentrated abrasion is solved. 本发明涉及冷轧酸洗工艺领域，具体涉及一种冷轧酸洗带钢拉伸矫直的改进方法，本发明通过改进现有拉伸矫直机，让带钢运行时，上、下辊沿带钢宽度方向作往复移动，使带钢边部经过辊子有效长度内的所有部位，从而实现工作辊的均匀磨损，解决集中磨损问题，从而解决由于不均匀延伸所造成的欠酸洗问题、板形缺陷问题，延长矫直辊在线使用周期，从而解决由于集中磨损所