Mold jaw half for an apparatus for the production of...

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 49/00 (2006.01) B29C 47/12 (2006.01) B29C 47/88 (2006.01) B29C 49/48 (2006.01) B29D 23/00 (2006.01) B29C 33/02 (2006.01) B29C 35/16 (2006.01)

Patent

CA 2508993

Th invention relates to a mould-half (16) for a device (10) for producing tubes provided with cross ribs. The inventive mould-half (16) comprises faces (20, 22), a base surface and a cooling channel (24) disposed thereinside. Said cooling channel comprises a coolant input (28) and a coolant output (36) discharging at the level of the base surface of said mould-half (16) at a distance from each other. The aim of said invention is to reduce a hydraulic resistance of the coolant flowing through the cooling channel (26), thereby increasing the flow rate thereof and improving a cooling effect. For this purpose, the coolant input (28) and the coolant output (36) are embodied in such a way that they are intersectable in the view of faces (20, 22) and oriented oppositely with respect to the running direction (38) of the mould- half (16). Said orientation makes it possible to introduce the coolant into the cooling channel (26) practically as by shovelling.

L'invention concerne un demi-moule (16) pour un dispositif (10) servant à produire des tuyaux à nervures transversales. Ledit demi-moule (16) présente des faces (20, 22) et une surface de base, ainsi que, dans sa partie intérieure, un canal de refroidissement (24) comportant une arrivée de fluide de refroidissement (28) et une évacuation de fluide de refroidissement (36) qui débouchent, à distance l'une de l'autre, au niveau de la surface de base du demi-moule (16). L'objectif de l'invention est de réduire la résistance à l'écoulement du fluide de refroidissement à travers le canal de refroidissement (26) et d'augmenter ainsi le débit du fluide de refroidissement, afin d'améliorer l'effet de refroidissement. A cet effet, l'arrivée de fluide de refroidissement (28) et l'évacuation de fluide de refroidissement (36) se croisent, vu en direction des faces (20, 22), et sont orientées dans le sens opposé à la direction d'avance (38) du demi-moule (16). Cette orientation permet d'introduire le fluide de refroidissement dans le canal de refroidissement (26) pratiquement à la manière d'une aube.

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