Apparatus for rotationally aligning a feature of an optical...

B - Operations – Transporting – 29 – C

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B29C 45/36 (2006.01) B29C 45/37 (2006.01) B29D 11/00 (2006.01)

Patent

CA 2264801

A selectively, rotatably adjustable riser pin (36) for aligning a predetermined characteristic on an asymmetrical mold surface with the gate (14) of an injection molding machine for enhanced flow dynamics of the mold material across the mold surface. The riser pin (36) is divided into two co- linear portions (62, 64) which are biased towards one another such that application of a predetermined torque will allow the front riser pin portion (64), which carries the mold tool, to be rotated independently of the back riser pin portion (62).

Cette invention concerne une goupille élévatrice (36) réglable sélectivement et par rotation, qui permet d'aligner une caractéristique préétablie située à la surface d'un moule asymétrique avec l'entrée (14) d'un dispositif de moulage par injection, dans le but d'améliorer la dynamique de l'écoulement de la matière de moulage sur toute la surface du moule. Ladite goupille élévatrice (36) est divisée en deux parties colinéaires (62, 64) qui sont sollicitées l'une en direction de l'autre de telle sorte que l'application d'un couple préétabli permet de faire tourner la partie avant (64) de la goupille élévatrice, qui porte l'outil de moulage, indépendamment de la partie arrière (62)de ladite goupille élévatrice.

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