Patent ID: 8157555
Filing Date: 2012-04-17
Classification: B29B,B29C,B29K,B29L

Abstract:
1. An extrusion feed device for a composite resin, comprising: a discharge passage for delivering a composite resin extruded material comprising two or more kinds of resin extruded materials; at least one cylindrical flow passage connecting a resin feed device to said discharge passage and disposed upstream of said discharge passage, at least one annular opening disposed at the junction of said at least one cylindrical flow passage and said discharge passage, said at least one annular opening being stationary and being formed annularly at an upstream side end part of said discharge passage to feed said resin extruded materials to said discharge passage; and an opening/closing valve that can open/close control the cylindrical flow passage, wherein said opening/closing valve is a cylindrical opening/closing valve that opens and closes said stationary annular opening of said cylindrical flow passage by reciprocating in the axial line direction of said discharge passage.