Platen

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 45/17 (2006.01)

Patent

CA 2520509

A platen (50) for a molding machine includes an intermediate support structure (20) between two planar walls (16, 18) having ribs (40) arranged at a non- normal angle b to a first wall (18). The ribs (40) couple forces from the first wall (18) to the second wall (16) in such a way that bending of the second wall (16) is resisted. This adds to the rigidity of the second wall (16) and hence the platen (50), adding to flatness of the arrangement. Gussets (42) may be provided extending between the ribs (40) and the intermediate support structure (20). This has the effect of surrounding and supporting an injection bore (14) and further adding to the coupling of forces to the edge portions of the second wall (16) to resist forces acting to bend the wall.

L'invention concerne un plateau porte-moule (50) pour une machine de moulage, lequel plateau comporte une structure de support intermédiaire (20) entre deux parois planaires (16, 18) pourvues de nervures (40) placées à un angle non normal .beta. d'une première paroi (18). Ces nervures (40) couplent des forces de la première paroi (18) à la seconde paroi (16), de sorte que la seconde paroi résiste à la flexion. La rigidité de cette seconde paroi (16) et, par conséquent, du plateau porte-moule (50) est ainsi augmentée tout comme la planéité de l'ensemble. Ce plateau peut également comporter des plaques de jonction (42) s'étendant entre les nervures (40) et la structure de support intermédiaire (20). Un trou d'injection (14) est ainsi entouré et supporté, le couplage de forces aux parties de bord de la seconde paroi (16) pour permettre à cette dernière de résister à des forces de flexion étant également augmenté.

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