Method for assisting strip threading of pinch roll of coiler in hot rolling strip steel production line

The invention discloses a hot rolling strip steel production line coiler pinch roll auxiliary threading method, and belongs to the field of steel production, pinch roll control modes comprise a pressure control mode, a speed control mode and a position control mode; in the position control mode, the lower pinch roll transversely moves to the position perpendicular to the circle center of the upper pinch roll when the head of the strip steel penetrates through the strip; and the upper pinch roll is pressed down to a set roll gap position G1. By adjusting the position, speed and pressure control of the pinch roll of the coiling machine, the pinch roll provides a function of assisting the threading of the head of the strip steel, so that the head loop rising of the thin-specification strip steel is reduced, the thin-specification production stability is improved, and the economic benefit of a hot-rolled strip steel production line is increased. 本发明公开了一种热轧带钢生产线卷取机夹送辊辅助穿带的方法，属于钢铁生产领域，夹送辊控制模式包括压力控制模式、速度控制模式和位置控制模式；