EP 1034128 A1 20000913 - DEVICE FOR CUTTING A PAPER WEB IN THE TRANSVERSE DIRECTION
Title (en)
DEVICE FOR CUTTING A PAPER WEB IN THE TRANSVERSE DIRECTION
Title (de)
VORRICHTUNG ZUM QUERSCHNEIDEN EINER PAPIERBAHN
Title (fr)
DISPOSITIF DE COUPE D'UNE BANDE CONTINUE DE PAPIER DANS LE SENS TRANSVERSAL
Publication
Application
Priority
- DE 9803060 W 19981013
- DE 19748789 A 19971105
Abstract (en)
[origin: DE19748789A1] A device for cutting a paper web (P) in the transverse direction has a first continuously driven conveyor (1) for moving the paper web through the device and storing the paper web therein (buffer) during cutting in the form of a loop (20), a stationary cutting device (5), a clamping device (4) for temporarily retaining the paper web, and a second conveyor (6) for moving the paper web further after it is stored. The second conveyor (6) comprises a continuously driven transport roller (6a) and several pressure rollers (6b) that can be intermittently pressed by a lifting device (9) onto the transport roller (6a), the paper web (P) being intercalated between the transport roller and the pressure rollers. The clamping device (4) and the lifting device (9) can be driven in step with the cutting device (5), so that the paper web is retained by the clamping device (4) and the pressure rollers (6b) are lifted from the transport roller (6a) while the paper web is cut. The second conveyor (6) is arranged between the clamping device (4) and the cutting device (5). Its transport roller (6a) has a surface layer (8) with the highest possible coefficient of friction with the paper web (P). The lifting device (9) is designed or can be controlled in such a way that the pressure rollers (6b) are lifted from the transport roller (6a) shortly before the paper web is stretched when the loop (20) is undone.
IPC 1-7
IPC 8 full level
B65H 20/02 (2006.01); B65H 20/32 (2006.01); B65H 35/04 (2006.01)
CPC (source: EP US)
B65H 20/02 (2013.01 - EP US); B65H 20/32 (2013.01 - EP US); B65H 35/04 (2013.01 - EP US); B65H 2301/51212 (2013.01 - EP US); B65H 2403/512 (2013.01 - EP US); B65H 2404/1441 (2013.01 - EP US); Y10T 83/2094 (2015.04 - EP US); Y10T 83/4529 (2015.04 - EP US); Y10T 83/4594 (2015.04 - EP US)
Citation (search report)
See references of WO 9924343A1
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
DE 19748789 A1 19990506; DE 19748789 C2 20000525; CA 2309106 A1 19990520; DE 59802924 D1 20020314; EP 1034128 A1 20000913; EP 1034128 B1 20020123; ES 2170541 T3 20020801; JP 2001522768 A 20011120; US 6418825 B1 20020716; WO 9924343 A1 19990520
DOCDB simple family (application)
DE 19748789 A 19971105; CA 2309106 A 19981013; DE 59802924 T 19981013; DE 9803060 W 19981013; EP 98959740 A 19981013; ES 98959740 T 19981013; JP 2000520367 A 19981013; US 53071800 A 20000502