Importance

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Abstract

The present invention concerns an apparatus for ultrasonic processing of a material web having an ultrasonic vibration unit which has a sonotrode and a converter connected thereto optionally by way of an amplitude transformer, and a counterpart tool, wherein for processing of the material web the web is moved through a gap between the sonotrode and the counterpart tool, wherein the ultrasonic vibration unit is fixed to a carriage moveable relative to the counterpart tool so that the ultrasonic vibration unit can be moved together with the carriage in the force direction, that is to say in the direction of or away from the counterpart tool, wherein there is provided a force sensor for measuring the force applied to the sonotrode by the material web. To provide a corresponding apparatus of the kind set forth in the opening part of this specification, which permits more accurate measurement of the welding force, in order to be able to continuously process by means of ultrasound even situations of use with an extremely small process bandwidth, it is proposed according to the invention that the sonotrode and the carriage are connected together by way of a sensor component which has the force sensor.

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First Claim