Patent ID: 8459323

Claim:
Flat bed embossing machine with a foil web guiding device ( 2 ) for several foil webs ( 6 ), which from unwinding rolls ( 7 ) are conducted over a tool plate ( 3 ) on a flat bed press ( 4 ), with a foil tensioning device ahead of the tool plate and with foil drawing devices ( 9 ) for every foil web after the tool plate, characterised in that directly ahead of the tool plate ( 3 ) several individually adjustable in transverse direction (Y) to the drawing direction (X), long, central symmetrically configured web guides ( 11 . 1 , 11 . 2 , 11 . 3 ) are provided as foil tensioning devices, with a smooth, low-friction surface ( 12 ) and with suction openings ( 14 ) in the surfaces, which are connected with controllable negative pressure sources ( 13 . 1 , 13 . 2 , 13 . 3 ) for the independent setting of negative pressure (pi) and braking force (zi) on every individual web guide ( 11 . 1 , 11 . 2 , 11 . 3 ), wherein to every picture foil web ( 6 i ) a print mark sensor ( 15 i ) is assigned between the foil drawing device ( 9 i ) and the web guide ( 11 i ) and lateral guiding elements ( 30 ) settable on both sides on low-friction deflecting elements ( 31 , 32 ) directly ahead of the web guides and behind the tool plate ( 3 ) are assigned, wherein said lateral guiding elements ( 30 ) can guide the foil webs ( 6 i ) centered on the web guides.