Ultrasound welding device comprising vibration-decoupled counter tool
AssigneeHerrmann Ultraschalltechnik GmbH & Co. KG
InventorThomas HERRMANN
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Abstract
The invention relates to an ultrasound welding device (1) for ultrasonic machining of a material by means of a sonotrode (2) mounted in a vibration-decoupled manner, which sonotrode comprises a sealing surface having a cylinder barrel shape, and a counter tool (8), wherein a converter is connected to the sonotrode (2) optionally via a first amplitude transformation unit and the sonotrode (2) and the first converter are designed in such a manner that the sonotrode (2) can be set into vibration by means of a natural vibration of the ultrasonic frequency fS.
Claims9
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An ultrasound welding device (1) as set forth in claim 9 characterised in that there is provided a drive (4, 10) for rotation of the sonotrode (2), wherein the sonotrode (2) is preferably of a substantially rotationally symmetrical configuration.
An ultrasound welding device (1) as set forth in claim 9 characterised in that there is provided a drive (4, 10) for rotation of the counterpart tool (8), wherein the counterpart tool (8) is preferably of a substantially rotationally symmetrical configuration and has a sealing surface in the shape of a cylinder surface.
An ultrasound welding device (1) as set forth in claim 9 characterised in that the sealing surface of the sonotrode (2) and/or the sealing surface of the counterpart tool (8) are structured.
An ultrasound welding device (1) as set forth in claim 9 characterised in that the spacing between sonotrode (2) and counterpart electrode (8) is adjustable, wherein there is preferably provided an abutment so arranged that a minimum spacing between sonotrode (2) and counterpart tool (8) is observed.
1. An ultrasound welding device (1) for ultrasonic processing of a material with a sonotrode (2) which is mounted in vibration-decoupled relationship and which has a sealing surface in the shape of a cylinder surface, and a counterpart tool (8), wherein a converter is connected to the sonotrode (2) optionally by way of a first amplitude transformation portion and the sonotrode (2) and the first converter are so designed that the sonotrode (2) can be caused to vibrate with a natural vibration of the ultrasonic frequency fS, wherein the counterpart tool (8) has a natural vibration of the ultrasonic frequency fG and is mounted in vibration-decoupled relationship in such a way that it can be excited with the ultrasonic frequency fG,
- a second converter is connected to the counterpart tool (8) optionally by way of a second amplitude transformation portion and the counterpart tool (8) and the converter are so designed that the counterpart tool (8) can be caused to vibrate with a natural vibration of the frequency fG,
- characterised in that the natural frequency fG is not equal to the frequency fS and is not an integral multiple thereof.
Dependencies are inferred from the claim text.