Method and apparatus for introduction of glass filament strand onto feed roller of chopped glass filament strands manufacturing system

摘要

A system for manufacturing chopped strands of glass filaments wherein a multiplicity of glass filaments are extruded through orifices in the bottom of at least two spinning furnaces and a sizing agent is applied and the filaments are collected to form at least two strands. The strands brought into contact with the circumferential surface of a feed roller through a predetermined angle so as to be drawn and attenuated by frictional force exerted by the circumferential surface of the feed roller while the strands are cut into chopped strands of a predetermined length with a cutter roller in contact with the feed roller. An auxiliary feed roller is disposed adjacent to one end portion of and in axial alignment with the main feed roller and is driven independently thereof. An auxiliary cutter roller is adapted to contact under pressure the circumferential surface of the auxiliary feed roller to rotate therewith. When introducing a strand onto the main feed roller, the auxiliary feed roller is maintained substantially stationary or driven at a relatively low speed while the main feed roller is rotated at a normal attenuation speed, and the strand is wound on and taken up by the auxiliary feed roller. The speed of the auxiliary feed roller is gradually increased to a normal attentuation speed, and thereafter the strand on the auxiliary feed roller is moved onto the main feed roller.