Patent ID: 6336803
Filing Date: 2002-01-08
Classification: B01J,B06B,B23K,B26D,B29C

Abstract:
A device for treating a continuously advancing material web comprising:an ultrasound generator; a sonotrode connected to the ultrasound generator, the sonotrode generator having a working face, the sonotrode defining a vibration direction; a counter-tool which lies opposite the working face of the sonotrode and defines a gap therebetween; means for passing the material web through the gap between the sonotrode and the counter-tool; a drive to set the sonotrode against the counter-tool; and means for suppressing the effect of vibrations at the sonotrode on the treatment of the material web, said means for supressing including a high-frequency actuator supporting the sonotrode in the vibration direction, wherein the high-frequency actuator is activated by a control which reacts to measured chances in the force or the distance between the face of the sonotrode and the counter-tool.