APPARATUS AND METHOD FOR ULTRASONIC SEALING DISPOSABLE DIAPERS

摘要

A method and apparatus for transversely sealing multi-ply diaper webs including an ultrasonic horn assembly above the web and an anvil assembly below the web, and including orbiting the two assemblies with points of orbit intersection at two spaced apart points on the web and with one of the assemblies being resiliently mounted so as to yield when the two assemblies come in contact during sealing.