Pivot-arm mounted air blow/water spray jet removes particulate matter from moving paper or carton web during start-up/slow-down production phases

摘要

A rocking assembly delivers drying air or sprays a fluid over a moving web of paper or carton. The air/spray pipe (34) is mounted on a pivoting arm (82) that is positioned over the web by a piston (72), and subsequently withdraws under the action of a return spring (74). The air blow/water spray unit operates during machine start-up or slow-down phases in which the slow-moving web is exposed to dust or other particulate matter. In operation.