Connecting device for connecting terminal web section of e.g. paper web, of screw nut roller for paper machine, has sonotrodes connecting terminal web section to material web with roller portion by ultrasonic welding by seam

摘要

The device (180) has a fibrous material web roller (130) comprising a roller portion or a terminal web section. Sonotrodes (250, 250') e.g. anvil, connect the terminal web section to a fibrous material web (120, 120') with the roller portion by ultrasonic welding by a weld seam. The sonotrodes exhibit property such as an extension transverse to a winding direction (170). A separating device separates supernatant terminal residue portions of the fibrous material web. A clamping apparatus clamps the fibrous material web. An independent claim is also included for a method for connecting a terminal web section of a fibrous material web.