SYSTEMS AND METHODS FOR SUPPLYING A WEB OF PACKAGING MATERIAL TO AN INDEXING-MOTION PACKAGING MACHINE

摘要

Methods and systems for supplying a web of packaging material to an indexing-motion packaging machine include rotating a roll of a web of packaging material, sensing changes in position of a dancer caused by rotation of the roll, rotating the roll at a starting speed of rotation that is based upon sensed changes in position of the dancer, and then maintain substantially constant tension in the web of flexible packaging material during indexing motion of the packaging machine.