Web handling device i.e. calendar, for smoothing paper or cardboard web, has counter-pressure element exerting pressure over circumference of element, where counter-pressure is generated by pressurized fluid which acts directly on web

摘要

#CMT# #/CMT# The device (1) has a heated supporting element (2) e.g. heated rotary roller (9), at which a continuous paper or cardboard web (3) is guided over a peripheral section. A counter-pressure element (4) exerts pressure over a circumference of the element and does not exert the pressure at a web-part (3a) adjacent to the supporting element, where the circumference of the supporting element is 100 millimeter. The counter-pressure is generated by pressurized fluid in a pressure fluid container (5), where the fluid acts directly on the web. The element (2) is formed with a smooth roller surface (9a). #CMT#USE : #/CMT# Web handling device i.e. calendar, for smoothing a paper or cardboard web (all claimed). #CMT#ADVANTAGE : #/CMT# The counter-pressure is generated by the pressurized fluid, which acts directly on the paper or cardboard web, without body contact, thus reducing the danger of markings on the web, so that interference during a printing process is avoided. The device is designed such that nip formation is avoided, thus preventing penetration o foreign particles during handling process. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a web handling device. 1 : Web handling device 2 : Heated supporting element 3 : Continuous paper or cardboard web 3a : Web-part 4 : Counter-pressure element 5 : Pressure fluid container 9 : Heated rotary roller 9a : Smooth roller surface.