US 12,115,569 B2
Method for automatically calibrating vertical rollers of a vertical roller frame and calibration arrangement for carrying out said method
Stefan Wendt, Hilchenbach (DE); and Ralf Setzer, Hilchenbach (DE)
Assigned to SMS group GmbH, Düsseldorf (DE)
Appl. No. 17/796,793
Filed by SMS group GmbH, Düsseldorf (DE)
PCT Filed Feb. 5, 2021, PCT No. PCT/EP2021/052778
§ 371(c)(1), (2) Date Aug. 1, 2022,
PCT Pub. No. WO2021/156424, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 10 2020 201 445 (DE), filed on Feb. 6, 2020; and application No. 10 2020 213 239 (DE), filed on Oct. 20, 2020.
Prior Publication US 2023/0048632 A1, Feb. 16, 2023
Int. Cl. B21B 38/10 (2006.01); B21B 13/06 (2006.01)
CPC B21B 38/105 (2013.01) [B21B 13/06 (2013.01); B21B 2273/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for automatic calibration of vertical rolls of a vertical rolling stand, wherein each of the vertical rolls is supported in a vertical roll unit of a plurality of vertical roll units, wherein each vertical roll unit in the plurality of vertical roll units is adjustable with respect to a predetermined center line of several components arranged in a rolling train, the method comprising:
a) moving the plurality of vertical roll units into a calibration position transverse to the center line against at least one stationary stop of the vertical rolling stand, wherein the at least one stationary stop has a certain known position with respect to the center line,
b) calculating a calibrated initial distance (Akal) between the center line in the calibration position and an outer edge of one of the vertical rolls facing a rolled stock or between the center line in the calibration position and a center line of the one of the vertical rolls, and
c) adjusting the vertical roll units to a defined operating position.
 
14. A calibration arrangement on a vertical rolling stand in a rolling train for rolling metal products, having at least two vertical rolls which are each mounted in vertical roll units of a plurality of vertical roll units, wherein the plurality of vertical roll units define a rolling gap and wherein the plurality of vertical roll units are adjustable by at least one adjustment system and/or at least one return system with respect to a predetermined center line of several components arranged in the rolling train,
wherein the calibration arrangement comprises at least one first reference surface of a defined position on one of: at least one vertical roll unit in the plurality of vertical roll units, or on a component which is movable with the at least one vertical roll unit,
wherein the calibration arrangement comprises at least one second reference surface stationary with respect to the center line, and a control system (S) by which, with at least one position sensor (PG) of the at least one adjustment system and/or of the at least one return system, an adjustment of the plurality of vertical roll units is configured to be effected transversely to the center line against the at least one second reference surface as a stationary stop of the vertical rolling stand for determining a calibrated starting position and for calculating a calibrated initial distance (Akal) between an outer edge of a vertical roll in the at least two vertical rolls that is directed towards a rolled stock and the center line or between a center line of the vertical roll in the at least two vertical rolls and the center line, and for determining an adjustment of the plurality of vertical roll units into a defined rolling position.