Apparatus for automatic and simultaneous compensation of an...

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 45/17 (2006.01) B29C 45/26 (2006.01)

Patent

CA 2426649

The invention relates to a device for automatic and simultaneous compensation of an angle error and an axis offset in the closing unit of an injection molding machine, comprising a moveable (2) and a fixed (1) mould mounting plate, a base plate (7) which can be fixed to the mould mounting plates (1,2), and a mould support plate (8) for receiving the half of the mould associated with the mould mounting plate. The mould support plate (8) can be tilted in relation to the base plate (7) and the half of the mould can be moved parallel to the mould support plate (8). The invention is characterized in that the base plate (7) is connected to the mould support plate (8) by means of a spherical cap bearing (9), whereby a gap dw is provided between the base plate (7) and the mould support plate (8), the mould support plate (8) is prestressed in relation to the base plate (7) by means of a first prestressing means (15), the half of the mould (4) associated with the mould support plate (8) is prestressed against the mould support plate (8) by means of a second prestressing means (16) and a first centering ring (29) with a cone-shaped recess (30) is provided on one half of the mould (3) and a second centering ring (31) with a centering cone corresponding to the above-mentioned recess is provided on the other half of the mould (4).

L'invention concerne un dispositif de compensation automatique et simultanée d'une erreur angulaire et d'un décalage d'axe sur une unité de fermeture d'une machine de moulage par injection. Ledit dispositif est composé d'un plateau de fixation de moule mobile (2) et d'un plateau de fixation de moule fixe (1), d'un plateau de base (7) pouvant être fixé sur un des plateaux de fixation de moule (1, 2), et d'un plateau porte-moule (8) destiné à recevoir le demi-moule affecté à ce plateau de fixation de moule, le plateau porte-moule (8) pouvant être incliné par rapport au plateau de base (7), et le demi-moule pouvant coulisser parallèlement au plateau porte-moule (8). L'invention se caractérise en ce que le plateau de base (7) est relié au plateau porte-moule (8) par l'intermédiaire d'un porte-calotte (9) de manière à créer une fente d¿w? entre le plateau de base (7) et le plateau porte-moule (8), que le plateau porte-moule (8) est précontraint par rapport au plateau de base (7) par l'intermédiaire de premiers moyens de précontrainte (15), que le demi-moule (4) affecté au plateau porte-moule (8) est précontraint par rapport au plateau porte-moule (8) par l'intermédiaire de deuxièmes moyens de précontrainte (16), et qu'une première bague de centrage (29) comportant une cavité conique (30) est prévue sur un des demi-moules (3) et une deuxième bague de centrage (31) comportant un cône de centrage (32) correspondant à ladite cavité (30) est prévue sur l'autre demi-moule (4).

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