Patent ID: 8887784
Filing Date: 2014-11-18
Classification: B06B,B29C

Abstract:
1. An ultrasonic vibration unit for an ultrasonic welding device for sealing and welding material webs, comprising a sonotrode ( 12 ) connected to a converter ( 14 ) and having at least one sealing horn ( 16 ) radially protruding from an axis of rotation (a) and rotatable about the axis of rotation (a) and having a free end forming a sealing surface ( 18 ), wherein the sonotrode ( 12 ) comprises a sonotrode shaft ( 20 ) having the axis of rotation (a), wherein at least one end face ( 22 ) of the sonotrode shaft ( 20 ) is connected to the converter ( 14 ) and the at least one sealing horn is attached to the sonotrode shaft ( 20 ) by means of boosters ( 24 , 26 ) when vibrational nodes (K L ) of a longitudinal vibration (S Wl ) in the sonotrode shaft ( 20 ) are present, wherein each booster ( 24 , 26 ) and the at least one sealing horn ( 16 ) extend radially from the axis of rotation (a).