Method for moulding a plastic part with a metal insert held...

Details Method for moulding a plastic part with a metal insert held... Method for moulding a plastic part with a metal insert held...

B - Operations, Transporting

29

C

B29C 45/14 (2006.01) B29C 45/16 (2006.01)

Patent

CA 2757015

The invention relates to a method for moulding a profiled bead (3), in particular along the periphery of a window (4), or moulding a window made from plastic, in which a plastic material forming the profiled bead (3) or the plastic window is introduced into a mould cavity in which at lest one ferromagnetic insert (2), such as a trim, has been placed. The invention is characterised in that the insert (2) is held in place in the mould cavity (5) during the introduction of the plastic material by means of at least one magnet (40) which can move between two positions, namely: an active position, A, in which it exerts a force of attraction on the insert (2) through the inner surface of the mould cavity, and an inactive position, I, in which it does not exert a force of attraction on the insert (2).

L'invention se rapporte à un procédé de moulage d'un cordon profilé (3) en particulier à la périphérie d'un vitrage (4) ou de moulage d'un vitrage en matière plastique, dans lequel une matière plastique constitutive dudit cordon profilé (3) ou respectivement dudit vitrage en matière plastique est introduite dans une cavité de moulage dans laquelle au moins une pièce rapportée (2) ferromagnétique, telle qu'un enjoliveur, a préalablement été positionnée, caractérisé en ce que ladite pièce rapportée (2) est maintenue dans ladite cavité de moulage (5) pendant l'introduction de ladite matière plastique par au moins un aimant (40) qui est mobile entre deux positions, une position active A dans laquelle il exerce une force d'attraction sur ladite pièce rapportée (2) à travers la surface interne de la cavité de moulage et une position inactive I dans laquelle il n'exerce pas de force d'attraction sur ladite pièce rapportée (2).

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