Cooling assembly comprising several cooling pins for cooling hollow moulded plastic pieces by means of a cooling fluid flow boosted by Venturi effect

摘要

The cooling assembly comprising several cooling pins (1) that are connected to the same fluid inlet. Each cooling pin (1) is adapted to cool a molded hollow plastic piece (P), and comprises a hollow blowing pipe (2) having a fluid inlet (20a) at one end and at least one fluid outlet (21a) at the opposite end, and fluid boosting means (3) for boosting by Venturi effect the cooling fluid flow at the inlet (20a) of the blowing pipe (2). The cooling assembly can be mounted on a molding machine, and in particular an injection molding machine.