Platen clamping unit for an injection molding machine

Details Platen clamping unit for an injection molding machine Platen clamping unit for an injection molding machine

B - Operations, Transporting

29

C

B29C 33/20 (2006.01) B29C 45/67 (2006.01) B29C 45/68 (2006.01)

Patent

CA 2418022

To displace a mobile platen (3), a threaded spindle drive is inserted between the mobile platen (3) and a fixed platen (16), whereby one end of each threaded spindle is mounted in the fixed platen (16) and is configured as a piston (9) of a hydraulic piston/cylinder unit. The pistons are mounted in the fixed platen (16) in hydraulic cylinders and an increased clamping force is created for the platen clamping mechanism by an appropriate impingement of the piston (9). In addition, the invention provides a detachable anti-rotation lock (23) for the threaded spindles (15). The invention thus allows an oblique position of the platens (3, 16) to be corrected, by the targeted rotation of one or more threaded spindles.

Pour déplacer une plaque porte-moule (3) mobile, on implante un dispositif de commande à broches filetées entre la plaque porte-moule mobile (3) et une plaque porte-moule fixe (16). Une extrémité de chaque broche filetée, montée dans la plaque porte-moule fixe (16), est conçue sous forme de piston (9) d'une unité vérin hydraulique. Les pistons sont montés dans la plaque porte-moule fixe (16) dans des vérins hydrauliques. Un actionnement adéquat des pistons (9) engendre une force de fermeture accrue pour l'unité de fermeture de la plaque. Un dispositif de fixation de blocage en rotation (23) amovible des broches filetées (15) permet de corriger une inclinaison des plaques (3, 16) par rotation ciblée d'au moins une broche filetée.

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