Zonal regulation of moisture distribution in mechanism of printing machine - involves air outlet aperture of a cross current blower on surface of roller or cylinder closable completely or partially by throttles

摘要

The air outlet aperture throttles (6) are adjusted by being coupled to a drive (8) with memory effect. The drive is in thermic contact with a heating and cooling device (10) which is connected to a control and regulating unit (11) for the colour and moisture amt. The drive is made of an alloy with form memory. The throttles (6) can be arrested in a defined position and can be released by operation of a mechanical unlocking component. Each throttle has two drives connected one behind the other and between the drives (8) and the throttle (6) is a mechanical lever gear. USE/ADVANTAGE - For zonal regulation of moisture distribution in a printing machine with which at low expense a zone-wise remote influence of the air flow produced by a cross current blower is made possible.