US 12,330,199 B2
Meandering amount detection method and meandering control method for metal strip
Masanori Hoshino, Tokyo (JP)
Assigned to JFE Steel Corporation, Tokyo (JP)
Appl. No. 18/034,090
Filed by JFE Steel Corporation, Tokyo (JP)
PCT Filed Jul. 8, 2021, PCT No. PCT/JP2021/025756
§ 371(c)(1), (2) Date Apr. 27, 2023,
PCT Pub. No. WO2022/091486, PCT Pub. Date May 5, 2022.
Claims priority of application No. 2020-181178 (JP), filed on Oct. 29, 2020.
Prior Publication US 2023/0390818 A1, Dec. 7, 2023
Int. Cl. B21B 37/68 (2006.01); B21B 37/66 (2006.01); B21B 38/00 (2006.01); B21B 39/08 (2006.01); B21C 47/34 (2006.01); B21C 49/00 (2006.01); B21C 51/00 (2006.01)
CPC B21B 37/68 (2013.01) [B21B 38/00 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A meandering amount detection method for detecting a meandering amount of a metal strip traveling in a state of being overlapped in a plurality of stages at intervals, the method comprising:
calculating an end portion position in a width direction of the metal strip in each of the plurality of stages using
an angle formed by a reference direction, wherein the reference direction is determined from a reference point, and a direction connecting the reference point and the end portion position in the width direction of the metal strip in each of the plurality of stages,
a distance between the reference point and the end portion position in the width direction of the metal strip in each of the plurality of stages,
a distance between a straight line including the width direction of the metal strip and the reference point; and
calculating the meandering amount of the metal strip in each of the plurality of stages based on the calculated end portion position in the width direction of the metal strip in each of the plurality of stages.