EP 1670621 A1 20060621 - METHOD FOR CUTTING AN IN-LINE TUBE AND CUTTING DEVICE THEREFOR
Title (en)
METHOD FOR CUTTING AN IN-LINE TUBE AND CUTTING DEVICE THEREFOR
Title (de)
VERFAHREN ZUM SCHNEIDEN EINES INLINE-ROHRS UND SCHNEIDVORRICHTUNG DAFÜR
Title (fr)
PROCEDE DE COUPE D'UN TUBE EN LIGNE ET DISPOSITIF DE COUPE METTANT EN OEUVRE LEDIT PROCEDE
Publication
Application
Priority
- IB 2004003230 W 20041005
- FR 0311652 A 20031006
Abstract (en)
[origin: WO2005032774A1] The present invention relates to a flexible cutting method and device for use with all tubes, including paperboard tubes, wherein a tube is simultaneously rotated and axially translated forwards to achieve, regardless of the tube thickness, a clean high-quality cut with no warping or burrs, without affecting production costs. Said cutting device (1) comprises two opposed rotary cutters (3) each mounted on a carriage (34) that is radially translatably movable in a direction perpendicular to the forward direction of the tube (2), and said carriages (34) are supported on an axially translatably movable holder (50) synchronised with the forward movement of the tube. The drive means (4) for driving the carriages (34) are arranged to move the cutters (3) intermittently towards the tube in cutting increments up to at least the entire thickness of the tube. Each cutting increment corresponds to a predetermined cutting depth so that the tube is cut in a series of steps. The cutting process may be followed by grooving or partial cutting steps performed using the same cutters (3) at a cutting depth smaller than the thickness of said tube (2). The present invention is useful for making tubes, particularly paperboard tubes, using a spiral winder or widening means.
IPC 1-7
IPC 8 full level
B26D 1/60 (2006.01); B26D 3/16 (2006.01); B26D 5/20 (2006.01)
CPC (source: EP)
B26D 1/60 (2013.01); B26D 3/16 (2013.01); B26D 5/20 (2013.01)
Citation (search report)
See references of WO 2005032774A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2860447 A1 20050408; FR 2860447 B1 20061208; AT E380098 T1 20071215; DE 602004010537 D1 20080117; DE 602004010537 T2 20090115; EP 1670621 A1 20060621; EP 1670621 B1 20071205; ES 2297508 T3 20080501; WO 2005032774 A1 20050414
DOCDB simple family (application)
FR 0311652 A 20031006; AT 04791668 T 20041005; DE 602004010537 T 20041005; EP 04791668 A 20041005; ES 04791668 T 20041005; IB 2004003230 W 20041005