EP 2815817 A1 20141224 - ROLLER LEVELER AND METHOD FOR CORRECTING SHEET MATERIAL
Title (en)
ROLLER LEVELER AND METHOD FOR CORRECTING SHEET MATERIAL
Title (de)
ROLLENRICHTMASCHINE UND VERFAHREN ZUR KORREKTUR EINES BAHNENMATERIALS
Title (fr)
NIVELEUSE À CYLINDRES ET PROCÉDÉ POUR LE DRESSAGE DE MATÉRIAU EN FEUILLE
Publication
Application
Priority
- JP 2012028973 A 20120213
- JP 2013052262 W 20130131
Abstract (en)
A roller leveler (100) for flattening sheet material (S) includes: a leveling roll unit (20) that has a plurality of leveling rolls (6, 8) configured to rotate so as to pass the sheet material while sandwiching and pressing the sheet material (S) interposed therebetween; pushing cylinders (4a, 4b) configured to press the sheet material (S) via the leveling rolls (6, 8) and provided on each of an entrance side and a discharge side of the leveling roll unit (20), on which the sheet material (S) enters and is discharged into and from the leveling roll unit (20), respectively; and a driving mechanism (15) configured to rotate the leveling rolls (6, 8) to pass the sheet material (S), wherein the plurality of leveling rolls (6, 8) are designed so that a diameter (D) thereof satisfies a relation, 0.5<D/P<0.9, in relation to a roll pitch P of the leveling rolls (6, 8) that is determined from a maximum requirement yield stress and a maximum requirement sheet-material thickness of the sheet material to be flattened.
IPC 8 full level
B21D 1/05 (2006.01)
CPC (source: EP KR US)
B21D 1/02 (2013.01 - EP US); B21D 1/05 (2013.01 - KR US); B21D 1/06 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2815817 A1 20141224; EP 2815817 A4 20151118; CA 2864380 A1 20130822; CN 103240299 A 20130814; CN 203245215 U 20131023; IN 1742KON2014 A 20151023; JP WO2013121891 A1 20150511; KR 101559159 B1 20151008; KR 20140112051 A 20140922; US 2015013418 A1 20150115; WO 2013121891 A1 20130822
DOCDB simple family (application)
EP 13749297 A 20130131; CA 2864380 A 20130131; CN 201310049666 A 20130207; CN 201320071421 U 20130207; IN 1742KON2014 A 20140820; JP 2013052262 W 20130131; JP 2014500163 A 20130131; KR 20147020914 A 20130131; US 201314378041 A 20130131