Feed device for feeding fibers during the production of fiber-reinforced plastics materials
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United States of America Patent
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Jan 12, 2016
Grant Date -
Aug 27, 2015
app pub date -
Aug 28, 2013
filing date -
Sep 27, 2012
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Abstract
A feed device for feeding fibers during the production of fiber-reinforced plastics materials has a multi-shaft screw machine for the lateral guidance of the fibers into a preparation system for producing fiber-reinforced plastics materials. The multi-shaft screw machine comprises a housing, a plurality of housing bores penetrating one another as well as screw shafts, which are rotatably drivable and are arranged therein, and a feed opening. A suction mechanism, which produces an airstream sucking in the fibers, is provided to suck the fibers through the feed opening into the housing bores. The fibers are filtered by means of a filter mechanism out of the airstream. In order to ensure a long service life, the filter mechanism has a plurality of flow channels, which have a widening cross section in a flow direction.
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