Zero adjusting horizontal method for pinch roll of hot continuous rolling mill recoiling machine

Abstract

The invention belongs to the field of hot continuous rolling machinery, and particularly relates to a zero adjusting horizontal method for a pinch roll of a hot continuous rolling mill recoiling machine. According to the technical scheme, the zero adjusting horizontal method for the pinch roll of the hot continuous rolling mill recoiling machine is characterized in that pressure sensors are installed on a transmission side and an operation side of the pinch roll of the hot continuous rolling mill recoiling machine; after the pinch roll is raised quickly, namely the pinch roll is in the maximum position, the values of the pressure sensors on both sides are right, namely a rodless cavity pressure is a system pressure and a rod cavity pressure is zero, but if the pressures are not right, examination and determination are needed, and a hydraulic system is examined or the pressure sensors are replaced according to specific practical conditions; and after the pinch roll is raised quickly, namely the pinch roll is in the maximum position, if the values of the sensors at both sides are different but not the same, an eccentric pin needs to be adjusted anticlockwise or clockwise till the values are the same. The method has the beneficial effects of solving the problem that long-term adjustment is needed after a pinch roll of an existing hot continuous rolling mill recoiling machine is replaced, solving the problem of bad coiling shape caused by a non-horizontal zero adjusting position after the pinch roll during hot continuous rolling is replaced, ensuring the quality of band steel products and realizing stable control of the hot continuous rolling mill recoiling machine.

Description

technical field [0001] The invention belongs to the field of hot continuous rolling machinery, in particular to a method for zero leveling of pinch rolls of a hot continuous rolling coiler. Background technique [0002] The pinch roll equipment of the hot rolling coiler is very critical to the coil quality. After overhauling and replacing the pinch roll, the zero adjustment position of the pinch roll is often not level, which eventually leads to positive current of the pinch roll or edge out of the coil when coiling the strip, resulting in extremely poor coil shape, especially for thin gauges. After replacing the pinch roller, because there is no suitable method, the adjustment time is long and the adjustment quality cannot be guaranteed, which seriously restricts the normal progress of the production quality. Contents of the invention [0003] The technical problem to be solved by the present invention is: how to quickly realize the zero adjustment and horizontal positio...

AI Technical Summary

Problems solved by technology

After overhauling and replacing the pinch rolls, the zero adjustment position of the pinch rolls will often be out of level, which will eventually lead to positive currents of the pinch rolls or edge out of the coil when coiling the strip, resulting in extremely poor coil shape, especially for thin gauges.

After replacing the pinch roller, the adjustment time is long and the adjustment quality cannot be guaranteed because there is no suitable method, which seriously restricts the normal production quality