Device and method for rolling up flexible material webs, particularly for metallising installations.

摘要

A web metalliser comprises a vacuum chamber 27 housing a cooled treatment roll 1 disposed between a web feed 2 and a web take up 3. A draw off roll 21 driven by a motor 25 is disposed between roll 1 and take up 3. An isolating roll 12 defines a nip 13 with the surface of roll 1 on the upstream side of roll 1. It is possible to vary the tension in the web to inhibit wrinkling by controlling the speeds of draw off roll 21 and web take up 2 and by utilizing the isolation provided by nip 13 and the braking effect of brake 5.