Blow molding extrusion head

Details Blow molding extrusion head Blow molding extrusion head

B - Operations, Transporting

29

C

B29C 49/04 (2006.01) B29C 47/20 (2006.01) B29C 47/28 (2006.01)

Patent

CA 2065826

An extrusion head for a blow molding machine wherein a movable plunger is slidably mounted in a distributor head which receives a melt at an inlet end of its channel and directs it along such channel to the terminal end of the channel while simultaneously directing portions of it along spiral radial paths to the lower circumferential edge of the distributor head to fill an accumulator chamber which also causes the plunger to recede facilitating the filling of the accumulator chamber. The channel as defined by the adjacent circumferential wall and the curvilinear contour on the distributor head defines a smooth integral flow channel that is curvilinear in cross section.

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