Ultrasonic welding apparatus having plurality of sonotrodes
US9427912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Apr 15, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B70/844
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to an ultrasonic welding apparatus for ultrasonic machining of a material, having at least two sonotrodes and a converter device, which converts an electrical AC voltage into an ultrasonic vibration and sets the at least two sonotrodes in ultrasonic vibration, the at least two sonotrodes being arranged in such a manner that the material to be machined is arranged between them during machining and can at the same time be machined by the at least two sonotrodes. To specify an ultrasonic welding apparatus that allows effective material machining without an undesirable interaction occurring between the two sonotrodes, the converter device according to the invention excites the first sonotrode at a frequency fs1 and the second sonotrode at a frequency fs2, fs2 being greater than fs1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.