Method and mould closure for an injection moulding machine...

B - Operations – Transporting – 29 – C

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B29C 45/17 (2006.01) B23P 25/00 (2006.01) B29C 45/64 (2006.01)

Patent

CA 2695585

The invention relates to a device and a method for injection moulding machines with a tool clamping plate (3). Through the enormous mould closure forces, in particular the tool clamping plate on the nozzle side is deformed or respectively deflected up to one millimetre. This leads to high mechanical stresses in the injection tools. The new invention now proposes at least partially deflecting or elastically deforming the tool clamping plate (3), which is on the nozzle side and/or is movable, in terms of the mould closure forces, on a processing table, and carrying out a flat processing in the region of the tool clamping surface (17) under the deformation force.

L'invention concerne un dispositif ainsi qu'un procédé pour machines de moulage par injection dotées d'une plaque de serrage d'outil (3). Du fait des énormes forces de fermeture du moule, la plaque de serrage d'outil, en particulier celle située du côté de la tuyère, est déformée ou bombée jusqu'à un millimètre. Cela entraîne de fortes sollicitations mécaniques sur les outils de moulage par injection. Cette nouvelle invention propose donc de fléchir ou déformer élastiquement au moins en partie la plaque de serrage d'outil (3) située du côté de l'injecteur et/ou mobile dans le sens des forces de fermeture du moule sur une table de travail et de réaliser un planage dans la zone de la surface de serrage d'outil (17) sous l'effet de la force de déformation.

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