Mould sealing unit for an injection moulding machine

B - Operations – Transporting – 29 – C

Patent

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B29C 45/76 (2006.01)

Patent

CA 2464123

A sealing device (12) is provided for the cyclical opening and closing of the injection mould (M) and for applying the sealing force on a mould sealing unit on an injection moulding machine for the working of plastics. The sealing device is supported on a support. A high resolution surface deflection sensor (13) is provided as sensor means for recording the tool securing force and the sealing force, which is arranged on the support for the sealing device (12). A simple, economic and reliable measuring system is thus achieved, which can record the forces throughout the whole cycle.

La présente invention concerne une unité de fermeture de moule destinée à une machine de moulage par injection permettant le traitement de plastiques. Selon l'invention, contre ladite unité se trouve un système de fermeture (12) destiné à ouvrir et à refermer de manière cyclique le moule de moulage par injection (M), ainsi qu'à appliquer la force de fermeture. Le système de fermeture prend appui sur un élément d'appui. La présence en tant qu'élément de détection pour la détection de la force de blocage d'outil et des forces de fermeture, d'au moins un détecteur de dilatation de surface (13) à résolution élevée qui se trouve contre l'élément d'appui du système de fermeture (12), permet d'obtenir un système de mesure simple, peu onéreux et fiable qui est capable de mesurer les forces tout au long du cycle.

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