Injection compression moulding apparatus

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 45/56 (2006.01) B29C 45/64 (2006.01) B29C 45/14 (2006.01) B29C 45/16 (2006.01)

Patent

CA 2610949

An injection compression moulding apparatus comprises two mould parts (32, 36) which define a mould cavity and are mounted on two relatively movable platens (40) of an injection moulding press. An actuator (44) is arranged in series with the platen 40 acting on at least one of the mould parts (36) and is controlled in synchronism with the movement of the platens to enable the relative speed of the two mould parts (32, 36) during a mould closing phase of each article moulding cycle to be modified, the speed of relative movement of the mould parts being the vector sum of the speeds of movement and the platens (40) and the actuator (44).

Un appareil de moulage par injection / compression comprend deux parties de moule (32, 36) qui définissent une cavité de moule et qui sont montées sur deux plaques mobiles l'une par rapport à l'autre (40) d'une presse de moulage par injection. Un actionneur (44) est ménagé en série avec la plaque (40) agissant sur au moins une des parties (36) du moule; il est commandé de façon synchrone avec le mouvement des plaques de manière à permettre la modification de la vitesse relative des deux parties de moule (32, 36) pendant une phase de fermeture de moule du cycle de moulage de chaque article, la vitesse relative totale des parties du moule étant la somme des vecteurs des vitesses du mouvement des plaques (40) et de l'actionneur (44).

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