Class 72/10.7 - Sensing roll gap

Subclass of Class 72 - Metal deforming
Definition: Subject matter including detecting the location of the tool
No. of patents: 39
Last issue date: 11/16/2010

Number	Title	Issue Date
7832241	Device and method for aligning the input apparatusses and the channels in a rolling stand A device for aligning the input apparatuses and the channels in a rolling stand is characterized in that it comprises: a measurement instrument (20) equipped with means (22, F, 23) for detecting the position of the surfaces of the channels (4...	11/16/2010
7353676	Method and apparatus for precision rolling of rotationally symmetrical components An apparatus (1) and a method serve for precision rolling of a surface area (2) of a rotationally symmetrical component (3), especially a screw. The apparatus (1) includes at least two spaced apart rolling tools (4, 5), a measuring...	04/08/2008
7350388	Method for determining shape of shift roll for rolling mill A method for determining a shape of a shift roll for a rolling mill, includes the steps of determining a necessary control amount distribution αi for a plate crown with respect to plate widths, based on a distribution of the number of plates rolled by a ...	04/01/2008
7320237	Method for measuring misalignment of continuance mill and apparatus for measuring the same While a reference means having a positional relationship to the pass-line of a continuance mill determined in advance and caliber profile (area enclosed by the groove profile of a rolling roll) formed by a rolling roll at each stand are imaged within the same visual...	01/22/2008
7299672	Bridle unit A bridle unit assigned to a rolling stand with several rolls arranged in adjustable positions below and above the strip flow, which can be moved by means of a drive from an initial position to the strip and from the strip back into the initial position, wherein the ...	11/27/2007
7275404	Method and an apparatus to control the lateral motion of a long metal bar being formed by a mechanical process such as rolling or drawing An adjustable guide, includes two or more mechanisms each having a rotatable retaining element containing a retaining groove with a variable radius in its perimeter surface. The grooves form a guidance path to control the lateral, i.e. non-axial, motion of a long ba...	10/02/2007
7174758	Device for measuring the roll gap between the working rollers of a cold or warm rolling stand A device for measuring the roll gap (7) between the working rollers (1a: 1b) of a cold or warm rolling stand for rolling out narrow or wide strips of metal, especially NE metal strips, by means of roll gap sensors (6) whose ...	02/13/2007
6922878	Method and device for rolling a foil of varying thicknesses A method and a device for rolling a metal strip (1) in a rolling train, the rolling train having at least two rolling stands, the metal strip (1) having at least two partial areas (3, 4) of different thicknesses, which are connected to one anoth...	08/02/2005
6708077	Furnace pacing for multistrand mill A method and system for furnace pacing in a mill are disclosed herein. Billets are extracted from a furnace and provided in an alternating fashion to two or more strands of a multistrand stand. The timing of the extraction of each of the billets from the furnace, i....	03/16/2004
6658910	Roller device and method for adjusting said device A rolling apparatus is proposed with four rolls arranged in the shape of a star whereby one drive unit each is assigned to the rolls and whereby an adjusting unit each precedes the rolls through which the rolls are arranged adjustably in a radial and an a...	12/09/2003
6588245	Roll gap control for coiler Roll gap control is provided using a first roll position detector that detects a first position of a first roll, a second roll position detector that detects a first position of a second roll and a third roll position detector that detects a first positio...	07/08/2003
6295851	Method of monitoring the distance between the rolls of a roll pair, and means for use in carrying out the method The invention relates to a method of monitoring the distance between the rolls of the roll pairs in a rolling line that includes a plurality of mutually sequential roll units where each unit includes a roll pair and a roller guide for leading a bar sectio...	10/02/2001
6164103	Method for improving the contour of rolled material A method for improving the contour of rolled material over at least one segment of a rolling schedule including a plurality of rolling processes. The method includes associating at least one quality criterion with at least one rolling stand of at least on...	12/26/2000
6112566	Rolling method for rod-shaped rolling stock, Particularly rod steel or wire A method of rolling rod-shaped rolling stock, particularly rod steel or wire, in a roll stand having two work rolls which are adjustable relative to each other in an adjusting direction and which together form a roll groove with an actual roll gap, so tha...	09/05/2000
5875672	Method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies A method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies, which includes a supply of metallic strip feedstock in a cold condition, the feedstock being passed in a cold condition through a pair of opposed, space...	03/02/1999
5720196	Hot-rolling method of steel piece joint during continuous hot-rolling A method for continuously hot-rolling steel pieces, includes butt-joining the rear end of the preceding steel piece and the leading end of the succeeding steel piece, then finish-rolling the butt-joined steel pieces by supplying a continuous hot rolling f...	02/24/1998
5671625	Shaping of thin metal products between two rolls The device includes two rolls (10, 11) held by bearings (13, 14) on a frame (16) and, for each roll, devices (22) for measuring the position of the generatrix diametrically opposite the neck between the rolls, at three or more points lying respectively in...	09/30/1997
5533371	Measurement device for roll gap control and process for its operation A rolling or continuous casting and rolling mill facility includes a roll set comprising working rolls defining a roll gap therebetween and support rolls, at least one of the working rolls and the support rolls having coaxial reduced diameter barrel porti...	07/09/1996
5179851	Crown adjustment control system for cluster mills There is provided a mill computer control system for automatically controlling the position of the individual drives in accordance with at least one predetermined equation so as to produce variable profile forms of the roll gap. Crown forms and tapered fo...	01/19/1993
5086399	Method and apparatus for setting-up rolling mill roll gaps In setting roll gaps of a rolling mill having stands arranged in tandem, the resistance to deformation of a workpiece in each of the stands is calculated on the basis of a cumulative strain in each stand, with strain of the workpiece which is in an entran...	02/04/1992
5000020	Method and arrangement for controlling the thicknesses of webs and flanges of beams in universal rolling mill stands A method and an arrangement for controlling the thicknesses of webs and flanges of beam sections in universal rolling mill stands. A gage-meter circuit is provided for each roll of the universal rolling mill stand. In order to maintain a certain ratio of ...	03/19/1991
4821544	Method and apparatus for roll gap measurement and control In the method and the apparatus for measuring and controlling the roll gap in a roll stand the roll gap is illuminated by a light source transversely of the roll axis or also parallel to the roll axis. A camera, in particular a CCD line camera, is aligned...	04/18/1989
4817407	Rolling stand A rolling stand includes a stationary roll and at least one movable roll in spaced-apart relationship with the journals of the movable roll supported in a bearing unit which cooperates with a control mechanism for radially displacing the movable roll rela...	04/04/1989
4715209	Crown control compensation controlling method in multiple roll mill A crown control compensation controlling method in a multiple roll mill, in which a variation of rolling load caused by crown control is obtained from a crown control quantity. A wedge type hydraulic reduction device is operated according to the variation...	12/29/1987
4691547	Rolling mill strip thickness controller A method for automatically controlling the thickness of product emerging from a rolling mill. Signals indicative of total roll force (F), rollgap position (S), angular position of one mill roll (v) and downstream product thickness (h) are utilized to obta...	09/08/1987
4506532	Method for controlling continuous rolling mill and control apparatus therefor The invention provides a method for controlling a continuous rolling mill having at least ith and (i+1)th stands and a control apparatus therefor, wherein an exit strip thickness reference value of an automatic gauge control is changed in accordance with ...	03/26/1985
4481799	Arrangement for regulating a rolling mill for metal rolling An arrangement for regulating a rolling mill for metal rolling, the work rolls of which are supported by guided roll shells of a lower controlled deflection roll and an upper controlled deflection roll, the roll shells being supported by means of hydrosta...	11/13/1984
4480452	Rolling mill In a rolling mill containing two work rolls and, as desired, supporting or back-up rolls, a rapid adjustment of the roll gap or nip with elimination of effects due to elastic elongation of the roll framework or stand is achieved in that when structuring a...	11/06/1984
4415976	Method and apparatus for automatic mill zero correction for strip width The change in the mill modulus of the stand of a rolling mill due to the particular strip width of a run strip of material is taken into account by reference to the unloaded mill modulus of the stand and a desired roll gap opening is calculated on the bas...	11/15/1983
4343167	Roller-dies-processing method and apparatus Method for manufacturing long bars, round, square or flat, employing multi-tandem type roller dies mechanism in which each roller gap is controlled by the roller gap adjusting mechanism, and apparatus preferably applicable that method. The apparatus is pr...	08/10/1982
4283930	Roller-dies-processing method and apparatus Method for manufacturing long bars, round, square or flat, employing multi-tandem type roller dies mechanism in which each roller gap is controlled by the roller gap adjusting mechanism, and apparatus preferably applicable that method. The apparatus is pr...	08/18/1981
4248072	Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation A method of producing a plate material having a uniform width and a lengthwise thickness variation by imparting plastic deformations to a work by means of widthwise rolling rolls and thicknesswise rolling rolls. The method has the steps of measuring the t...	02/03/1981
4187707	Thickness control method and apparatus for a rolling mill This disclosure relates to a process for the regulation of the thickness of a flat product such as a strip, sheet or plate, being rolled in a hot tandem rolling mill, and the corresponding regulation device for carrying out the process. Regarding each sta...	02/12/1980
4131004	Rolling mill gauge and flatness calibration system A frame carrying one or more transducers is inserted between the work rolls of a mill stand with the transducers positioned parallel to the roll axis. The outputs of the transducers are connected to a display device which when load is applied to the rolls...	12/26/1978
4054043	Closed loop integrated gauge and crown control for rolling mills In a four-high mill stand separate transducer means are provided for measuring gauge in the bite of the work rolls and for measuring the inclination of work roll axis to the horizontal. Means are provided for generating a gauge command signal proportional...	10/18/1977
4036041	Gage control system for rolling mill A gage control system for a rolling mill for compensating for variation in the thickness of rolled material due to variations in the rolling load or pressure. In the system, the roll eccentricity frequency produced by the eccentricity of the rolls is dete...	07/19/1977
3992910	Rolling operations A method of rolling an initially annular workpiece between forming rolls in which after the forming rolls have been fully advanced they are retracted initially slowly for a predetermined distance. The forming rolls can then be further retracted at a great...	11/23/1976
3961509	Roll gap control The roll gap is feedback controlled in that the actual gap is detected, compared with a reference for formation of an error signal which in turn controls the relative position of the rolls. That feedback system is supplemented by augmenting the error by a...	06/08/1976
3938360	Shape control method and system for a rolling mill A shape control system for a rolling mill comprises means for operating a roll positioning means to press down the rolls under a preselected load, when no strip to be rolled is fed between the rolls; a calculator of roll position variation for comparing t...	02/17/1976

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Class 72/10.7 - Sensing roll gap