ABSTRACT

Web guiding, also called steering, is essential on most converting machines to keep the webs on or near the machine centerline, especially those that process thin webs. Sometimes sections of the machine are moved laterally, as is usually done on unwind stands and sometimes on windup stands. Unwind stands are moved laterally to keep the web centerline paying off the supply roll near or on the machine centerline. Rewind or windup stands are moved laterally to maintain straighter sides on the winding roll when the web edges are not trimmed.