Printing – Embossing or penetrating
Patent
1998-02-11
1999-11-09
Burr, Edgar
Printing
Embossing or penetrating
101 27, B31F 107
Patent
active
059793082
ABSTRACT:
A flat embossing machine for flat material (5) to be embossed has a flat press (2), an embossing table (3) and a tool plate (4). At least one foil web (6) passes through foil loop stores (10, 20) each with a differential pressure device (30) for shaping a foil loop (12) with an air pressure difference exerted on the foil web. A foil feed device (24) and a tensioning device (25) are on each side of the flat press and a foil feed control (52) operates in synchronism with the press cycle so that the foil web is stopped during the embossing phase (TP) on the embossing table (3) and is advanced to the next embossing position during the embossing-free phase. Speed differences between the feed speed (VV) at the embossing location and web speed (V7) at the unwinding roll or at the removal device (V8) are compensated for by corresponding increases and decreases in the size of the loops (L1, L2) in the foil stores. This allows high embossing speeds with optimum quality.
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patent: 5816155 (1998-10-01), Stephan
Gietz Hanspeter
Kagi Beat
Rosli Manfred
Burr Edgar
Colilla Daniel J.
Farley Walter C.
Maschinenfabrik Geitz AG
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