Apparatus for rotationally aligning a feature of an optical tool with a gate in an injection molding apparatus
AssigneeBausch & Lomb Incorporated
InventorsJeffrey M. Vandewinckel, Allen L. Ormiston
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Abstract
A selectively, rotatably adjustable riser pin for aligning a predetermined characteristic on an asymmetrical mold surface with the gate of an injection molding machine for enhanced flow dynamics of the mold material across the mold surface. The riser pin is divided into two co-linear portions which are biased towards one another such that application of a predetermined torque will allow the front riser pin portion, which carries the mold tool, to be rotated independently of the back riser pin portion.
Claims8
Apparatus for selectively, rotationally aligning a predetermined characteristic on an asymmetrical mold surface of a mold tool with the gate of an injection molding machine wherethrough liquid mold material is injected into a mold cavity defined at least in part by said mold surface, said apparatus comprising:
- a) a riser pin having first and second, co-linear portions each having from and back ends, said riser pin first portion back end being secured in rotationally fixed relationship within said injection molding machine, said mold tool being secured to said front end of said riser pin second portion;
- and
- b) means attaching said front end of said riser pin first portion to said back end of said riser pin second portion in a rotationally adjustable manner whereby said mold tool may be rotated with said riser pin front portion independently of said riser pin back portion to enable alignment of said predetermined characteristic on said mold surface with said gate of said injection molding machine.
Dependencies are inferred from the claim text.