EP 0949378 A1 19991013 - Roller machine and method of operating the same
Title (en)
Roller machine and method of operating the same
Title (de)
Walzenmaschine und Verfahren zu ihrem Betrieb
Title (fr)
Machine à rouleaux et son procédé de fonctionnement
Publication
Application
Priority
DE 19815339 A 19980406
Abstract (en)
The driven rollers (2-9) have a common control (14) varying drive torque distribution. An Independent claim is included for the corresponding method of operating the machine. PREFERRED FEATURES:- The drive control limiter keeps rate of torque variation below a set threshold. A sensor unit (22,23) detects band material- and/or machine operational parameters, used to adjust torque distribution. The drive control includes a timing unit (20) and a memory (32) storing variation functions. Drive control includes a function generator (optionally random number-based) producing the torque variation function. Two rollers are driven in a stand with 2n rollers, n being integer. Rollers have at least two different diameters. A speed controller (14,10,11) is provided for the band. At least one roller (3,6) axis is outside the plane defined by other adjacent rollers (2,4; 5,7). A band guidance unit has variable spacing ahead of a roller nip.
Abstract (de)
Es wird eine Walzenmaschine (1) mit mehreren Walzen (2-9) angegeben, die in einem Stapel angeordnet sind und mehrere Walzenspalte zum Behandeln einer Materialbahn (21) bilden, wobei mindestens zwei Walzen (2, 5, 6) angetrieben sind. Ferner wird ein Verfahren zum Betreiben einer derartigen Walzenmaschine (1) angegeben. Man möchte bei der Behandlung der Materialbahn Barring-Erscheinungen möglichst vermindern. Hierzu weisen die angetriebenen Walzen (2, 5, 6) eine gemeinsame Antriebssteuerung (14) auf, die eine Antriebsmomentverteilung variiert. <IMAGE>
IPC 1-7
IPC 8 full level
D21G 1/00 (2006.01)
CPC (source: EP US)
D21G 1/0006 (2013.01 - EP US); D21G 1/0026 (2013.01 - EP US)
Citation (search report)
- [A] US 4471690 A 19840918 - YAMAGUCHI KOZO S [JP], et al
- [A] GB 1156937 A 19690702 - BLACK CLAWSON CO [US]
- [DA] DE 19601293 A1 19970717 - VOITH SULZER FINISHING GMBH [DE]
Designated contracting state (EPC)
AT DE FI FR GB SE
DOCDB simple family (publication)
EP 0949378 A1 19991013; EP 0949378 B1 20021211; AT E229593 T1 20021215; CA 2267965 A1 19991006; CA 2267965 C 20040203; DE 19815339 A1 19991014; DE 59903709 D1 20030123; US 6199476 B1 20010313
DOCDB simple family (application)
EP 99106505 A 19990330; AT 99106505 T 19990330; CA 2267965 A 19990406; DE 19815339 A 19980406; DE 59903709 T 19990330; US 28039599 A 19990405