Injection molding apparatus with cooled core

Details Injection molding apparatus with cooled core Injection molding apparatus with cooled core

B - Operations, Transporting

29

C

B29C 45/74 (2006.01) B29C 45/73 (2006.01)

Patent

CA 2195907

Injection molding hot runner apparatus having a cooled mold core with a head which extends outwardly from an elongated body. A cooling tube extends centrally in the mold core. A cooling fluid circuit extends from the open front end of the cooling tube outwardly into the head in close proximity with the surrounding cavity. The cooling fluid circuit includes a number of outwardly extending radial bores, each connected to an L-shaped duct leading back into a cylindrical space around the cooling tube.

La présente invention a pour objet un canal de carotte chauffé avec noyau de moule refroidi dont la tête émerge d'un corps de forme allongée. Un tube de refroidissement traverse le noyau de moule par son centre. Le liquide de refroidissement circule de l'extrémité du tube de refroidissement vers la tête, à grande proximité de la cavité périphérique. Le circuit du liquide de refroidissement comporte un certain nombre d'alésages radiaux individuellement reliés à un conduit en forme de L qui ramène le liquide de refroidissement vers un espace cylindrique aménagé autour du tube de refroidissement.

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