Class 72/242.4 - And second stage, equal size pair of back-up rolls

Subclass of Class 72 - Metal deforming
Definition: Subject matter wherein at least one of the back-up rollers
No. of patents: 32
Last issue date: 03/06/2012

Number	Title	Issue Date
8127584	Prestressed rolling mill housing assembly with improved operational features The present invention provides a Cluster mill which utilizes a Cluster mill gauge control system, has a high mill stiffness, a large work roll gap for threading, a rapid work roll gap opening, accurate roll force computation, side to side tilting, and utilizes work ...	03/06/2012
7765844	Prestressed rolling mill housing assembly with improved operational features The present invention provides a Cluster mill which utilizes a Cluster mill gauge control system, has a high mill stiffness, a large work roll gap for threading, a rapid work roll gap opening, accurate roll force computation, side to side tilting, and utilizes work ...	08/03/2010
7367209	Optimised shift strategy as a function of strip width The invention relates to a method for the optimization of shift strategies, as a function of the strip width, for best possible usage of the advantages of CVC/CVCPlus technology in operation of strip-edge oriented shifts in 4-/6-roller stands, comprising ...	05/06/2008
7234334	Saddle for backing assemblies in a rolling mill A saddle for a backing assembly in a rolling mill has non-cylindrical bearing surfaces that accommodate wear by allowing the saddles to self-align. The non-cylindrical bearing surfaces help prevent the needle bearings from being pinched and driven into the gear ring...	06/26/2007
7134307	Plate rolling mill A plate rolling mill includes a pair of work rolls that hold and press down a plate material therebetween, a plurality of backup rolls that prevent the work rolls from being deformed, and intermediate rolls each of which is disposed between the work roll and the bac...	11/14/2006
7093473	Apparatus for manufacturing band plate An apparatus for manufacturing a band plate has a rolling mill that includes a pair of upper and lower work rolls that roll a slab material having edge drop portions at both ends thereof, and a pair of backup rolls that contact non-rolling side surfaces of the pair ...	08/22/2006
6912883	Load measuring system for a thread rolling machine and operating method therefor A thread rolling machine forming a threaded member from a workpiece includes a die, a device for rotating the die, a device for generating a load applied to the die in a workpiece-feeding direction, a member that deforms under the applied load during a thread rollin...	07/05/2005
6725701	Cluster type multistage rolling mill In a cluster type split housing type rolling mill, the plate thickness control capability is improved by maintaining maximum mill rigidity. An upper inner housing supporting an upper group of rolls is supported at two points in a rolling pass direction at upper oute...	04/27/2004
6571592	Rolling mill with roll deflection bi-dimensionally controlled The present invention is generally directed to a rolling mill in which the supporting means are arranged in the middle region of the roll body of the working roll with their length(s) not longer than that of the roll body of the working roll. The supporti...	06/03/2003
6185973	Rolling mill for metal foil A rolling mill for metal foil includes a pair of work rollers having axes in parallel to each other for subjecting a sheet material being supplied therebetween to strip processing, two pairs of intermediate rollers arranged so that the intermediate roller...	02/13/2001
6116073	Cluster type multi-roll rolling mill and rolling method A cluster type multi-roll rolling mill with 20 rolls provided in a mono-block housing has 4 backing bearing shafts for supporting rolls on each of two, upper and lower, sides of a travelling path of a rolling material, and is characterized in that the 4 b...	09/12/2000
5992202	Drive system for axial adjustment of the first intermediate rolls of a 20-high rolling mill A drive assembly for axially adjusting at least one roll of the upper and lower pairs of first intermediate rolls of a cluster mill of the 20-high (1-2-3-4) type. The drive comprises a first horizontally oriented rack connected to one of the first interme...	11/30/1999
5692407	Shape control in a strip rolling mill of cluster type A strip rolling mill of cluster type has, on at least one side of the strip path, a work roll, a plurality of intermediate rolls supporting said work roll and a plurality of backing bearing assemblies supporting said intermediate rolls. Each backing beari...	12/02/1997
5666844	Floor-type cluster mill, preferably with direct hydraulic adjustment The present invention pertains to a floor-type cluster mill with a set of rolls above the nip and a corresponding set of rolls under the nip, and preferably with direct hydraulic adjusting means. The cluster mill is characterized by the possibility of con...	09/16/1997
5596899	Mill housings for cluster mills A two-part housing assembly for a cluster mill. The housing assembly has substantially the same size, form and structure as a monobloc housing, but is divided along a horizontal plane located at or close to its horizontal center line into upper and lower ...	01/28/1997
5558017	Roll stand In a roll stand, more particularly a cluster roll stand, having guard plates (15, 21) which are disposed opposite one another in pairs above and below the strip (B) processed in the roll stand in the run-in zone (E) and run-out zone (A) of the roll stand ...	09/24/1996
5481895	Second intermediate idler roll for use in a 20-high cluster mill Improved B and C backing bearing assemblies and second intermediate idler rolls, characterized by greatly reduced transverse rigidity, for use in 20-high cluster mills having a 1-2-3-4 roll arrangement. On each of the B and C backing assemblies, spacers a...	01/09/1996
5471859	Cluster mill crown adjustment system Improved B and C backing bearing assemblies and second intermediate idler rolls, characterized by greatly reduced transverse rigidity, for use in 20-high cluster mills having a 1-2-3-4 roll arrangement. On each of the B and C backing assemblies, spacers a...	12/05/1995
5421184	Additional profile control for cluster mills A crown adjustment system for a 20-high (1-2-3-4) cluster mill comprising rack-actuated crown adjustment saddles on the F and G backing bearing assemblies. The F and G saddles are equal in number and located in aligned positions so that the gear rings of ...	06/06/1995
5218852	Multi-roll cluster rolling apparatus A multi-roll cluster rolling apparatus has a pair of work rolls, and a plurality of first intermediate rolls, a plurality of second intermediate rolls and a plurality of backup rolls arranged successively in the mentioned order behind each the work roll. ...	06/15/1993
5193377	Crown adjustment systems on cluster mills A crown adjustment system for a 20-high (1-2-3-4) cluster mill of the type having upper and lower clusters each comprising a work roll, two first intermediate rolls, three second intermediate rolls, and four backing bearing assemblies. Each of the backing...	03/16/1993
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
5142896	Cluster mill with hydraulic screw-down The invention relates to a cluster mill having four columns 5, 6 connecting the lower part 1 and the upper part 2 for the sets of rolls 3, 4. Associated with each column 5, 6 is a lifting device 11, 12 enabling the lower part 1 and the upper part 2 to be ...	09/01/1992
5131252	Apparatus and method for cold rolling of metal strip Means and method for cold rolling metal strip characterized by edge drop. The invention contemplates the use in a cold rolling mill of at least one roll having a base profile provided with a flared component adjacent to at least one end of the roll. The b...	07/21/1992
5010756	Method of and apparatus for controlling shape of rolled material on multi-high rolling mill A method of and a device for controlling a counter of a rolled material on a multi-high rolling mill with which method and device very accurate shape control can be attained with certainty and in high responsibility. A strip shape of a rolled material in ...	04/30/1991
4805433	Multi-roll rolling stand having intermediate rolls which can be displaced in pairs in opposite directions and have tapered ends In a multi-roll rolling stand having two intermediate rolls 3 to 6, which each have only one tapered roll barrel end, in each case two tapered roll barrel ends lie on each side of the rolling stand. The intermediate rolls 3, 4 and 5, 6, the two roll barre...	02/21/1989
4768366	Wide strip mill using pressure elements An eight-roll cold strip mill for producing strips of wide width and light gauges, utilizing upper and lower small diameter work rolls, a pair of backing rolls for each work roll, and a driven roll for each work roll contacting the backing rolls thereof. ...	09/06/1988
4295355	Beam-backed strip mill with attached inserts There is disclosed a multi-roll beam-backed mill for cold-rolling wide strips, where small diameter workrolls are supported by other rolls and finally by casters whose supporting saddles are located in channels provided in arcuate-section segments affixed...	10/20/1981
4289013	Crown control for rolling mill Crown control mechanisms for a cluster rolling mill which includes individually actuated hydraulically driven racks for adjusting in a coordinated manner the positions of backing bearing elements in a manner to counteract work-induced deformation of backi...	09/15/1981
4107971	Cluster type rolling mill A cluster type rolling mill having a housing characterized by exterior curvatures of the upper and the lower housing parts backing the roll cluster and being joined by four columns at the housing corners. The exterior shape of said upper and lower housing...	08/22/1978
4064728	Device for selecting sets of rolls for twenty-high rolling mill A device, for selecting sets of rolls for twenty-high rolling mill, comprising a flat board, whereupon eccentric disks are mounted in full conformity with the positioning of the backup rolls of a rolling mill, dimensions of said disks corresponding to the...	12/27/1977
4022040	Method of operation and control of crown adjustment system drives on cluster mills In a cluster mill having individual crown adjustment drives to each saddle on at least one backing shaft to adjust the roll gap in line with each saddle, means to synchronize the drives mechanically to produce a tapered roll gap so that strip having a tra...	05/10/1977

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Class 72/242.4 - And second stage, equal size pair of back-up rolls