EP 0226166 B1 19900207 - METHOD AND DEVICE FOR POSITIONING AN INTERMITTENTLY MOVING CONVEYOR
Title (en)
METHOD AND DEVICE FOR POSITIONING AN INTERMITTENTLY MOVING CONVEYOR
Publication
Application
Priority
DE 3543846 A 19851212
Abstract (en)
[origin: US4848630A] For accurate positioning of a web of material which is to be transported stepwise by at least first and second feed means through processing stations disposed therebetween, the feed means are controlled by a programmable computer which stores a value representative of the length of the distance to be covered by the web during a transportation step. The tension of the web is measured and the measured value is compared to a reference value stored in the computer. If the actual value deviates from the reference value the drive means of at least one of the web feed means is controlled in such a way that the tension in the web is at least substantially adjusted to the reference value by increasing or reducing the length of the portion of web which in a transportation step is drawn into the processing region between the web feed means.
IPC 1-7
IPC 8 full level
B41F 13/02 (2006.01); B41F 13/12 (2006.01); B65H 23/188 (2006.01); B65H 23/192 (2006.01); B65H 26/06 (2006.01)
CPC (source: EP US)
B41F 13/025 (2013.01 - EP US); B65H 23/1882 (2013.01 - EP US); B65H 23/1888 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0226166 A1 19870624; EP 0226166 B1 19900207; AT E50230 T1 19900215; DE 3543846 A1 19870619; DE 3543846 C2 19920827; DE 3668873 D1 19900315; US 4848630 A 19890718
DOCDB simple family (application)
EP 86117131 A 19861209; AT 86117131 T 19861209; DE 3543846 A 19851212; DE 3668873 T 19861209; US 93998786 A 19861210