Material web processing device, has drive including set of eccentrics exhibiting phase shift with respect to another set of eccentrics, where phase shift between eccentrics amounts to specific degrees

摘要

The device has upper- and lower tools (2, 3) arranged above and below a material web (100), respectively, and a drive (5) for moving the upper- and lower tools. The drive includes two sets of eccentrics (52a, 52b, 55a, 55b) for moving the upper- and lower tools, where the eccentrics are drivable by a continuously running tension drive (58). The set of eccentrics exhibits a phase shift with respect to another set of the eccentrics, where the phase shift between the eccentrics amounts to 170 degrees to 190 degrees.