Procedure and device for ultrasonic welding at high speed of the material strips

摘要

PCT No. PCT/SE94/01034 Sec. 371 Date May 8, 1996 Sec. 102(e) Date May 8, 1996 PCT Filed Nov. 3, 1994 PCT Pub. No. WO95/13182 PCT Pub. Date May 18, 1995The present invention relates to a method and apparatus for ultrasonic welding of material webs which move between at least one ultrasonic horn of an ultrasonic welding arrangement and an anvil holder having a determined pattern of anvils, so as to enable the webs to be welded at high web speeds. The weld width of each ultrasonic horn in the ultrasonic welding arrangement is determined in accordance with the intended highest travel speed of the webs.