Title (en)

METHOD AND BENDING DEVICE FOR PROGRESSIVELY BENDING A METAL STRIP IN THE INLET AREA OF A MANDREL-LESS BAND COILER

Title (de)

VERFAHREN UND BIEGEEINRICHTUNG ZUM PROGRESSIVEN ANBIEGEN EINES METALLBANDES IM EINLAUFBEREICH EINER DORNLOSEN BANDHASPELEINRICHTUNG

Title (fr)

PROCÉDÉ ET DISPOSITIF DE FLEXION POUR LA FLEXION PROGRESSIVE D'UN RUBAN MÉTALLIQUE DANS LA ZONE D'ENTRÉE D'UN SYSTÈME D'ENROULAGE DE BANDE SANS MANDRIN

Publication

EP 2237902 A1 20101013 (DE)

Application

EP 09708830 A 20090116

Priority

• EP 2009000267 W 20090116
• AT 2072008 A 20080208

Abstract (en)

[origin: WO2009097957A1] The invention relates to a method and a bending device for progressively bending a metal band in the inlet area of a mandrel-less band coiler (3). In order to avoid slippage between the metal band (5) and the driven bending rollers (11, 12, 13), and thus damage to the metal band surface, the circumferential speed of all driven bending rollers (11, 12, 13) is adjusted at each contact line (BL11, BL12, BL13) with the metal band surface to the surface speed (V11, V12, V13) of the metal band (5) at the contact line.

IPC 8 full level

B21C 47/00 (2006.01); B21C 47/08 (2006.01)

CPC (source: EP)

B21C 47/003 (2013.01); B21C 47/08 (2013.01)

Citation (search report)

See references of WO 2009097957A1

Designated contracting state (EPC)

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 SE SI SK TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

WO 2009097957 A1 20090813; AT 506331 A1 20090815; AT 506331 B1 20100315; AT E521428 T1 20110915; BR PI0908819 A2 20150728; CN 101970144 A 20110209; CN 101970144 B 20130206; EP 2237902 A1 20101013; EP 2237902 B1 20110824; ES 2371909 T3 20120111; PL 2237902 T3 20120131

DOCDB simple family (application)

EP 2009000267 W 20090116; AT 09708830 T 20090116; AT 2072008 A 20080208; BR PI0908819 A 20090116; CN 200980104491 A 20090116; EP 09708830 A 20090116; ES 09708830 T 20090116; PL 09708830 T 20090116