Patent Number: 6,251,185

Title: System for delivering chopped fiberglass strands to a preform screen

Abstract: A system for placing chopped fiberglass strands onto a preform screen where desired includes a relatively light-weight chopper/feeder unit mounted on the outer end of a robot arm in closely spaced relation to the preform screen for robotically directing the chopped fiberglass strands onto the preform screen where desired with very little loss. Within the chopper/feeder unit is a cutter for chopping the fiberglass strands to the desired length. The cutter is driven by a variable speed motor attached to the chopper/feeder unit. Also attached to opposite sides of the chopper/feeder unit are a pair of air amplifiers that produce a sufficient volume and velocity of air flow around said cutter and through said unit to carry the chopped fiberglass strands away from the cutter and out through a discharge chute onto the preform screen.

Inventors: Morrison; Richard S. (Concord, OH), Mollman; Robert E. (Perrysburg, OH), Hutchinson; Kenneth T. (Roaming Shores, OH)

Assignee: Molded Fiber Glass Companies

International Classification: B29C 70/04 (20060101); B29C 70/38 (20060101); B05C 005/00 (); B05C 019/04 ()

Expiration Date: 06/26/2018