Support system for rotary function rolls

摘要

An apparatus and method for effecting an operation on at least one moving substrate web is disclosed. The apparatus comprises a rotatable bonding roll that is located adjacent the substrate web and configured to rotate about a bonding axis. A rotatable anvil roll has an anvil surface and is configured to rotate about an anvil axis to press the substrate web against an outer peripheral bonding surface of the bonding roll thereby bonding the substrate web. At least three support wheels are configured to contact the bonding surface of the bonding roll and to hold the bonding roll in a substantially fixed position.