EP 1151680 A3 20040526 - Method and apparatus for automatic resharpening of tobacco cutting knives
Title (en)
Method and apparatus for automatic resharpening of tobacco cutting knives
Title (de)
Verfahren und Vorrichtung zum automatischen Nachschleifen von Tabakschneidemessern
Title (fr)
Méthode et appareil pour l'aiguisage des couteaux pour couper le tabac
Publication
Application
Priority
DE 10021614 A 20000504
Abstract (en)
[origin: EP1151680A2] A method for automatic sharpening of tobacco cutting blades (16) fitted to a rotating drum (18) monitors the torque of the drive motor of the cutter as well as other parameters to determine if the blades require sharpening, or repositioning. The blades are mounted on an adjustable support and their cutting position is continually adjusted to provide the optimum cutting rate. If the control programme determines that the blades require sharpening an automatic control operates a grinding tool (21) to hone the blades. No manual adjustment is required. The other parameters monitored include moisture content, tobacco type, temperature, packing density of tobacco feed etc.
IPC 1-7
IPC 8 full level
B24B 47/20 (2006.01); A24B 7/04 (2006.01); A24B 7/12 (2006.01); A24B 7/14 (2006.01); B24B 3/36 (2006.01); B26D 5/00 (2006.01); B26D 7/12 (2006.01)
CPC (source: EP US)
A24B 7/12 (2013.01 - EP US); B26D 5/00 (2013.01 - EP US); B26D 7/12 (2013.01 - EP US); Y10T 83/04 (2015.04 - EP US); Y10T 83/303 (2015.04 - EP US)
Citation (search report)
- [DY] DE 2921665 A1 19801211 - HAUNI WERKE KOERBER & CO KG
- [Y] US 4627577 A 19861209 - HYUGA KOUNOSUKE [JP], et al
- [Y] US 3322175 A 19670530 - HARRY WARD
- [A] US 4640059 A 19870203 - KOMOSSA WERNER [DE], et al
- [A] US 4635402 A 19870113 - SAKABE BUSABURO [JP], et al
- [A] EP 0820836 A1 19980128 - PALLMANN KG MASCHF [DE]
- [A] DE 2932629 A1 19810226 - HAUNI WERKE KOERBER & CO KG
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1151680 A2 20011107; EP 1151680 A3 20040526; CN 1322499 A 20011121; DE 10021614 A1 20011108; JP 2002011642 A 20020115; PL 347304 A1 20011105; US 2002005098 A1 20020117; US 6634579 B2 20031021
DOCDB simple family (application)
EP 01110376 A 20010426; CN 01115844 A 20010508; DE 10021614 A 20000504; JP 2001134464 A 20010501; PL 34730401 A 20010427; US 84759701 A 20010503