B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/26 (2006.01) B29D 35/00 (2010.01) B29C 33/00 (2006.01) B29C 33/30 (2006.01) B29C 45/36 (2006.01) B29C 45/40 (2006.01) B29D 22/00 (2006.01) B29C 33/44 (2006.01)
Patent
CA 2298265
A mould (10) for the injection moulding of hollow products (1) or products with recesses and made from a plastic which quickly expands after removal from the mould, has two mould parts (12, 14) and a one-piece core (18) surrounded thereby. The core (18) within the mould rests with an extension (20) against both mould parts (12, 14). This extension (20) is movably supported on a guide column (22, 24) to be removed from the respective mould parts (12, 14) upon opening of the mould. A compression spring (28, 30) is provided in one of the mould parts (12, 14) which is supported against the mould part (12 or 14) and the core (18).
Moule (10) de moulage par injection de produits creux (1) ou de produits comportant des évidements et faits d'un plastique qui prend rapidement de l'expansion lorsqu'il est retiré du moule. Le moule comporte deux parties (12, 14) et un noyau monobloc (18) qu'elles entourent. Le noyau (18) à l'intérieur du moule s'appuie à l'aide d'un prolongement (20) contre les deux parties du moule (12, 14). Ce prolongement (20) repose de façon amovible sur une colonne de guidage (22, 24) qui est retirée des parties respectives du moule (12, 14) à l'ouverture du moule. Un ressort de compression (28, 30) est situé dans la partie du moule (12, 14) qui s'appuie sur l'autre partie (12 ou 14) et sur le noyau (18).
Bennett Jones Llp
Crocs Inc.
Gatti & Piccolo S.r.l.
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