| 摘要 |
A semi-rotary unit for continuously cutting or printing articles from sheets or from a continuous web, includes a rotary cylinder for supporting about its circumference a removable plate and defining a cutting or printing station, a conveyor for sequentially conveying sheets or a continuous web past the rotary cylinder, and a motor for driving the rotary cylinder and the conveyor. The unit further includes means for determining a correction factor for plates which are originally manufactured for use on a rotary cylinder having a different diameter to that of the unit, and control means for varying the speed of the rotary cylinder relative to the sheets or continuous web in accordance with the correction factor.
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