公开(公告)号：US12036592B2

公开(公告)日：2024-07-16

申请号：US17621473

申请日：2020-05-13

Applicant: SMS group GmbH

Inventor： Frank Gorgels ,  Andreas Kastner

IPC: B21B37/28 ,  B21B1/24 ,  B21B45/02

CPC classification number: B21B37/28 ,  B21B1/24 ,  B21B45/0218

Abstract: A flatness measuring apparatus for measuring the flatness of a metallic strip, including a measuring roller which has a roller axis and which makes contact with the strip for the measuring the flatness. The measuring roller is connected to a cooling system, using which the measuring roller can be cooled. To ensure that a high degree of measuring accuracy can be maintained even at high temperatures, the cooling system has a nozzle bar that extends parallel to the roller axis. At least one spray nozzle is arranged on the nozzle bar, using which cooling medium can be sprayed on the surface of the measuring roller in a spraying direction. The spraying direction meets a surface section of the measuring roller, and the angle between the spraying direction and the tangent on the measuring roller at the location of the surface section is less than 30°.

公开(公告)号：US12240023B2

公开(公告)日：2025-03-04

申请号：US18023582

申请日：2021-08-12

Applicant: SMS group GmbH

Inventor： Frank Gorgels ,  Olaf Norman Jepsen ,  Patrick Siemann ,  Andreas Kastner

IPC: B21B38/02 ,  B21B37/68

Abstract: A flatness-measuring device for a hot-rolled strip within a hot-rolling mill includes an entry-side deflection roller and an exit-side deflection roller. A central deflection roller is arranged between the entry-side deflection roller and the exit-side deflection roller. The central deflection roller is used as a flatness-measuring roller. To prevent the hot-rolled strip from departing laterally during a flatness measurement, the flatness-measuring device has a sensing apparatus for sensing an actual position of the hot-rolled strip. An adjusting apparatus is connected to the sensing apparatus and to at least one of the deflection rollers. The flatness-measuring device is designed to vary an angle between a longitudinal central axis of the deflection roller respectively connected to the adjusting apparatus and a longitudinal axis of the flatness-measuring device based on a deviation of the actual position of the hot-rolled strip from a predefined target position.