本发明提供一种能够使操作者识别滚动状态的轧制装置，例如进入轧机机架的钢板的动作，能够进行稳定的轧制加工。 [解决方案]滚动装置10包括多个各自包括一对轧机12的轧制机架11和设置在相邻轧制机架11A和11B之间的成像单元15，成像单元15被构造成对钢板1进入 轧制机架11B的一对轧机12B，位于轧制方向下游侧的轧制机架11A的上游侧。 成像单元15在轧制机架11B的轧制方向Z的上游侧，在钢板的宽度方向的中心部分的区域P中，满足下列公式（1），其中 能够输送钢板1：2×L×tan±/ 2> W max其中L表示位于滚动方向下游侧的滚动架11B与成像单元15之间的轧制方向上的距离， ±表示摄像单元的水平视角，Wmax表示钢板1的最大宽度。

It can recognize the behavior of the rolling conditions, etc. of the steel sheet entering handed to the rolling stand, to provide an apparatus for performing the rolling in a stable rolling operation. Rolling apparatus 10, a plurality of rolling stands 11 having a pair of rolling rolls 12, disposed between the adjacent rolling stands (11A, 11B) to said rolling position to the rolling direction downstream a pair of having the image pickup means 15, imaging means for imaging the bite into the steel sheet (1) in the rolling roll (12B) (15) of the stand (11A) rolling stands (11B) from an upstream side of the rolling stand ( 11B) in the plate width direction central portion of the rolling direction (Z) passing through the upstream-side area of ​​the steel plate (1) (P), it is arranged to satisfy the relation of equation (1).

Here, L is the distance in the rolling direction of the image pickup means 15 and the rolling stands (11B) which is located downstream to the rolling direction, α is a horizontal viewing angle of the imaging means, of the maximum width W _max is a steel plate (1).