Device for transverse cutting of a web material and machine containing said device
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United States of America Patent
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-
Aug 18, 2020
Grant Date -
Aug 24, 2017
app pub date -
Jul 31, 2015
filing date -
Sep 10, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The device includes a hollow cutting roller with a blade attached to the outer surface of the hollow roller. A stationary shaft is also provided, arranged inside the hollow roller and coaxial therewith. The stationary shaft is connected to a supporting structure and the hollow roller is rotatably supported onto the stationary shaft. A motor drive is provided to rotate the hollow roller around the stationary shaft. The hollow roller is supported onto the stationary shaft by at least a hydrostatic bearing arranged in an intermediate position between the ends of the stationary shaft.
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