Abstract: The flat foil printing press comprises an evacuable back-pressure plate (9), with suction regions (15k) which run in the sheet running direction (X) and which are next to embossing regions (16k), in which foil webs (6k) run. The suction regions are subdivided into several suction segments (10i) which are successive in the sheet running direction, and are each connected to a vacuum source (14) by way of a vacuum feed line (12i) via a vacuum switching element (13i). With the running-out of an embossed sheet (5), firstly all suction segments (10i) covered by the sheet are evacuated, and subsequently the suction segments which are no longer covered by the sheet are successively disconnected from the vacuum source. This results in an error-free separation of foil webs and sheets, for a greater picture quality and machine output.

Abstract: The flat foil printing press comprises an evacuable back-pressure plate (9), with suction regions (15k) which run in the sheet running direction (X) and which are next to embossing regions (16k), in which foil webs (6k) run. The suction regions are subdivided into several suction segments (10i) which are successive in the sheet running direction, and are each connected to a vacuum source (14) by way of a vacuum feed line (12i) via a vacuum switching element (13i). With the running-out of an embossed sheet (5), firstly all suction segments (10i) covered by the sheet are evacuated, and subsequently the suction segments which are no longer covered by the sheet are successively disconnected from the vacuum source. This results in an error-free separation of foil webs and sheets, for a greater picture quality and machine output.

Abstract: The flat bed embossing machine with a foil web guiding device (2) for a plurality of foil webs (6), which are conducted over a tool plate (3), for every foil web ahead of the tool plate comprises an individual, adjustable web guide (11.1, 11.2, 11.3) as foil tensioning devices. The web guides comprise suction openings (14), connected with controllable negative pressure sources (13.1, 13.2, 13.3) for the independent setting of negative pressure (pi) on each individual web guide. To every foil web (6i) a print mark sensor (15i) and settable lateral guiding elements (30) on low-friction deflecting elements (31, 32) are assigned. So that every foil web (6i) can be optimally set for the print marks in drawing direction X and in transverse direction Y.