Fixing device for moulds

Details Fixing device for moulds Fixing device for moulds

B - Operations, Transporting

29

C

B29C 45/67 (2006.01) B29C 45/04 (2006.01)

Patent

CA 2443760

A fixing device for moulds for plastic articles, where a pair of half-moulds (3,4) in which a force plug (11) can be inserted, comprises at least one tie rod (6) for keeping the two half-moulds in a closed position, the said tie rod being hinged, at one end, to the mobile half-mould and having a second end of a hammer-headed shape which hooks to two gripping jaws (60, 61). The tie rod (6) is hinged to a connecting rod which rotates on a pivot fixed to the resting base (14), which, in the movement of rotation, sets the tie rod (6) along the line corresponding to the centroid of the pressure forces produced during the moulding operation.

L'invention concerne un dispositif de fixation conçu pour des moules pour articles en plastique, selon lequel une paire de demi-moules (3, 4) pouvant loger un plateau de compression (11) est munie d'au moins colonne (6) destinée à maintenir les deux demi-moules en position fermée, ladite colonne étant fixée de manière pivotante à une extrémité au demi-moule mobile et étant dotée d'une deuxième extrémité se présentant sous la forme d'une tête de marteau et s'accrochant à deux mâchoires de serrage (60, 61). La colonne (6) est reliée de manière pivotante à une bielle qui effectue un mouvement de rotation autour d'un pivot fixé à la base-support (14) et qui, de par son mouvement de rotation, place la colonne (6) le long d'une ligne correspondant au centroïde des forces de pression générées au cours de l'opération de moulage.

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