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US 6,186,655 B1Granted
Auger fed extruder
AssigneeOwens Corning Fiberglass Technology, Inc.
InventorsSean R. Brookes, Kilian Mendel, Robert L. Sadinski
Life of this patent
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AssigneeOwens Corning Fiberglass Technology, Inc.
InventorsSean R. Brookes, Kilian Mendel, Robert L. Sadinski
Estimating the term…
An extruder such as a reclaim extruder includes a feed section with a throat into which a force feeder is positioned to compact and feed reclaim material at a higher and more productive rate. The force feeder includes three side-by-side augers pointed at the extruder screw axis. An AC variable frequency drive motor drives a double sided cog belt in serpentine fashion around respective pulleys or sheaves for the augers. Two of the augers are of one hand rotated in one direction, and one of opposite hand rotated in the opposite direction. The pulleys or sheaves are of different size so that each auger rotates progressively faster moving down stream of the extruder screw. Each auger is positioned in a closely fitting compression tube each provided with an inlet opening. The force feeder is conveniently angularly positioned through the wall of a collection box between a hopper and the throat of the extruder.
An extruder comprising a feed hopper, an extruder screw and a barrel, and a feed throat section between the hopper and barrel, a plurality of rotating augers adapted to force material into the feed throat section, said augers each having an axis of rotation intersecting the axis of the extruder screw, and a drive means in connection to each of said augers to rotate each said augers at progressively increasing speeds in a respective downstream direction of the extruder.
An extruder comprising a feed hopper and an extruder screw and barrel, a feed throat section between the hopper and barrel, said feed throat section including a plurality of side-by side rotating augers directed generally at the extruder screw, and respective compression tubes surrounding each auger, and including drive means for rotating each of said augers at a different speed.
Dependencies are inferred from the claim text.