US 9,809,927 B2
Device for embossing and/or perforating foils for tobacco goods
Charles Boegli, Marin-Epagnier (CH)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Appl. No. 14/405,361
Filed by BOEGLI-GRAVURES S.A., Marin-Epagnier (CH)
PCT Filed Jun. 6, 2013, PCT No. PCT/IB2013/054656
§ 371(c)(1), (2) Date Dec. 3, 2014,
PCT Pub. No. WO2013/183022, PCT Pub. Date Dec. 12, 2013.
Claims priority of application No. 12171255 (EP), filed on Jun. 8, 2012.
Prior Publication US 2015/0114585 A1, Apr. 30, 2015
Int. Cl. B31F 1/07 (2006.01); B23K 26/00 (2014.01); D21F 3/08 (2006.01); A24C 5/00 (2006.01); D21F 3/04 (2006.01)
CPC D21F 3/086 (2013.01) [A24C 5/005 (2013.01); A24C 5/007 (2013.01); B31F 1/07 (2013.01); D21F 3/04 (2013.01); B31F 2201/072 (2013.01); B31F 2201/0743 (2013.01); B31F 2201/0779 (2013.01); B31F 2201/0797 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A device for embossing and perforating foils for tobacco goods, comprising:
a perforating apparatus including a pair of embossing rolls, one of the embossing rolls is a male embossing roll having teeth for perforating the foil, an opposing roll to the male embossing roll is a female embossing roll, which has depressions assigned to the male embossing roll, the perforating apparatus configured to operate online directly or indirectly in a production machine;
a first control unit configured to control a precise location, a size and an arrangement of perforations of the perforating apparatus as a function of a character of a foil to be processed; and
a sensor for detecting the character of the foil, the sensor configured to signal to the first control unit to detect and to define a position of LIP (Low Ignition Propensity) zones, embossed patterns, or printed patterns, to control the perforating apparatus in such a way that the perforations are made at desired points with respect to the LIP zones, embossed patterns, or printed patterns, by adjusting an operating cycle of the perforating apparatus.