D - Textiles – Paper – 06 – H
Patent
D - Textiles, Paper
06
H
D06H 7/22 (2006.01) B26D 7/08 (2006.01) B29C 65/74 (2006.01) D03J 1/08 (2006.01) D06B 3/00 (2006.01) B29C 65/00 (2006.01)
Patent
CA 2153150
The operative part (20) of a device for cutting or welding webs consists of an oscillation generator divided into several sections and comprising a piezo element (21), and a horn radiator which amplifies the sonic energy generated in the oscil- lation generator (26) and transfers it to the web via the end of the horn (28). To improve efficiency and save space, the horn radiator (26) as per the inven- tion is fixed directly on the piezo element, on the opposite side of which is located only a counter-section (22) of the oscilla- tion generator. These three components are firmly secured together and form a novel combination (20). In this arrange- ment, the axial length (32) of the counter- section (22) is smaller than or equal to 1/8 of the effective sonic wavelength, while the axial overall length (38) of the com- bination (20) is smaller than or equal to 3/4 of the sonic wavelength.
Fetherstonhaugh & Co.
Vaupel Textilmaschinen Kg
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