EP 1640497 A2 20060329 - Device and method for monitoring web breaks during transfer of a material web, in particular during widening of a leader of the web
Title (en)
Device and method for monitoring web breaks during transfer of a material web, in particular during widening of a leader of the web
Title (de)
Einrichtung und Verfahren zur Überwachung des Überführens einer Materialbahn, insbesondere während der Verbreiterung eines Überführstreifens der Materialbahn, auf einen Abriss der Materialbahn
Title (fr)
Dispositif et procédé de surveillance de rupture de bande pendant le transfert d'une bande de matériau, en particulier pendant l'élargissement d'une bande d'enfilement découpée dans ladite bande
Publication
Application
Priority
DE 102004046795 A 20040927
Abstract (en)
In a machine (10) for producing and/or treating a sheet (12) of material, in which the sheet is fed using a guiding device from a production or supply section along a path adapted to a treatment device (14), where a transfer strip of material is formed and transported through the machine by forming a precursor transfer strip and increasing the width to the full width of the sheet (designated 'broad travel'), a device (18) for seizing a tear in the sheet during transfer of the sheet (especially during increasing the width of the transfer strip) is provided to correspond with a tear in the transfer strip or the sheet. Independent claims are included for: (A) a variant of the machine (10), in which the sheet is fed using a guiding device from a production or supply section along a path adapted to a treatment device (14), having a reduced pressure device (18) including a suction chest for seizing a tear in the sheet and including at least one pressure sensor for evaluating the operating pressure in the suction chest; (B) a method for monitoring the transfer of sheet by 'broad travel' as described above, in which monitoring of a tear is carried out during transfer of the sheet (especially during increasing the width of the transfer strip); and (C) apparatus for carrying out the monitoring process, preferably consisting of a machine (10) as described above.
IPC 8 full level
D21F 5/04 (2006.01); D21F 7/04 (2006.01); D21G 9/00 (2006.01)
CPC (source: EP US)
D21F 5/042 (2013.01 - EP US); D21F 7/04 (2013.01 - EP US); D21G 9/0063 (2013.01 - EP US)
Citation (applicant)
- DE 10157914 A1 20020829 - VOITH PAPER PATENT GMBH [DE]
- DE 10131281 A1 20030109 - VOITH PAPER PATENT GMBH [DE]
- DE 20103070 U1 20010510 - VOITH PAPER PATENT GMBH [DE]
- DE 4216653 C2 19951221 - VOITH GMBH J M [DE]
- EP 0660898 B1 19960904 - BELOIT TECHNOLOGIES INC [US]
- DE 10031163 A1 20020110 - SANDELMANN KLAUS [DE], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1640497 A2 20060329; EP 1640497 A3 20060628; DE 102004046795 A1 20060406; US 2006070713 A1 20060406; US 2009101299 A1 20090423; US 7473335 B2 20090106
DOCDB simple family (application)
EP 05108369 A 20050913; DE 102004046795 A 20040927; US 23396605 A 20050923; US 33088408 A 20081209