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Class 700/156 - Roll eccentricity compensation


Subclass of Class 700 - Data processing: generic control systems or specific applications
Definition: Subject matter wherein the thickness is controlled by the
No. of patents: 18
Last issue date: 05/03/2005


NumberTitleIssue Date
6889112Method for processing surface and apparatus for processing same
A method for processing a surface corrects a relationship between a processing condition and a removal quantity (polished removal quantity) or a removal depth (polished removal depth) in accordance with a worked surface to obtain desired removal quantity or removal ...
05/03/2005
6882931Navigation system
A map data reading and processing section acquires map information belonging to a hierarchical structure classified depending on coverage of a road map, a remote controller specifies a bypass region to bypass traffic of a vehicle in response to an input operation, a...
04/19/2005
6714843Closed-loop control method for operation of individually driven rotating machine elements
The invention relates to a closed-loop control method for operation of individually driven rotating machine elements (M1, M2) with angle position control, which elements are coupled with a force fit or via a common load (L). In this case, parameters (U...
03/30/2004
6584379Robot device and method of adjusting origin of robot
In a robot machine having a plurality of rotational joint axes, a rotational angle of rotational joint axis and a tilt angle of robot arm against the direction of gravity are measured at three or more of rotational angle positions to obtain rotational ang...
06/24/2003
6408222Apparatus and a method for controlling thickness of a strip in a twin roll strip casting device
A strip thickness control method in a twin roll strip casting device having a fixed roll and a horizontally movable roll, the method including the steps of: measuring a movement value Gj(θ) of journals of the fixed and movable rolls and a movement value ...
06/18/2002
5181408Method of measuring and compensating roll eccentricity of a rolling mill
A method of correcting the thickness variations of a rolling plate by controlling at least one of the top or bottom backup rolls of a rolling mill. The method further comprises an off-line eccentricity identification method, and an on-line eccentricity co...
01/26/1993
5077997Method for compensating irregularities caused by roll eccentricities
A method and an arrangement for regulating the thickness of rolled strip utilizing the gauge meter method and for compensating irregularities caused by roll eccentricities, wherein the size of the roll gap, the rolling force and the stand modulus are take...
01/07/1992
5036265Method and device for eliminating the effect of periodic disturbance variable having a known, variable frequency
A signal which is dependent solely on the disturbance variable is selected by means of a filter and fed to a disturbance detector. This disturbance detector simulates the steady and alternating component (sine component) of the selected signal, as well as...
07/30/1991
4910985Method and apparatus for the detection and correction of roll eccentricity in rolling mills
The invention provides a new apparatus for the detection, measurement and display of roll and roll bearing eccentricity in a rolling mill, and also an apparatus for correction of such eccentricities. The apparatus comprises individual narrow band-pass fil...
03/27/1990
4905491Unwind/rewind eccentricity control for rolling mills
A method of rolling material in a rolling mill in which the material is directed from an unwind coil of the material to the mill and/or to a rewind coil of the material from the mill, the material being under tension as it is directed to and from the mill...
03/06/1990
4850211Method of controlling elimination of roll eccentricity in rolling mill and device for carrying out the method
A rolling load signal is detected during a few rotations of a top and a bottom backup roll at different detection time points at which the top and bottom backup rolls are out of phase from each other and then are analyzed by Fourier analysis so as to dete...
07/25/1989
4763273Apparatus for detecting eccentricity of roll in rolling mill
An apparatus for detecting a roll eccentricity in a rolling mill includes mark pulse generators each provided for upper and lower rolls from which an eccentricity is to be detected, the mark pulse generator generating one pulse per one rotation of the rol...
08/09/1988
4685063Process and device for compensation of the effect of roll eccentricities
A process and device for compensation of the effect of roll eccentricities upon thickness regulation of material being rolled in a roll stand (1), wherein eccentricity oscillations are simulated by a model (6) based on measured values of roll adjustment p...
08/04/1987
4656854Rolling mill eccentricity compensation using measurement of sheet tension
A method of eliminating thickness changes in material exiting a stand or stands of a rolling mill, the changes being caused by the eccentricity of one or more rolls of the mill. The method includes the steps of engaging the material with a device that mea...
04/14/1987
4580224Method and system for generating an eccentricity compensation signal for gauge control of position control of a rolling mill
A system and method for adjusting the device used to exert a force against a strip being rolled by a rolling mill having at least one rotating backup roll. This system and method includes creating a signal F generally corresponding to force FO ...
04/01/1986
4521859Method of improved gage control in metal rolling mills
In a metal rolling mill of the type employing automatic gage control (AGC) to control the gap between the rolls utilized to reduce the thickness or gage of a workpiece passed between the rolls, there is provided a method for compensating for roll irregula...
06/04/1985
4222254Gauge control using estimate of roll eccentricity
A method of controlling a rolling mill in which eccentricity of the roll assemblies of the mill and variations in the thickness and/or hardness of material entering the mill ordinarily adversely affect the gauge of the material leaving the mill. The metho...
09/16/1980
4126027Method and apparatus for eccentricity correction in a rolling mill
A method and apparatus is disclosed for eccentricity correction in a rolling mill, in which prior to rolling, the eccentricity of the back-up rolls is measured and recorded both initially and each time the back-up rolls are changed. In an analog loop, con...
11/21/1978
 
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