ADAPTABLE WEB SPREADING DEVICE

摘要

The present disclosure describes a spreader roll (101) that can help spread webs laterally in a web processing operation, in particular to reduce or remove the presence of wrinkles or bagginess in the web. The spreader roll can be a reverse crown roll that is covered with a resilient material (160) to assist spreading the web to remove wrinkles. The surface curvature of the spreader roll (101) can be formed using layers of material such as a tape, to easily and readily approximate the shape of a reverse crown roll.

主权项

1. A spreader roll, comprising:
a reverse crown roll having a major surface, two ends, a midpoint halfway between the two ends, and a variable diameter that decreases from a first end diameter to a midpoint diameter, and increases from the midpoint diameter to a second end diameter; and an engagement cover comprising a resilient engagement surface, the engagement cover disposed over the major surface of the reverse crown roll.