| abstract |
The preform conveying installation (2) comprises gripping members (6) and heads (7) for feeding them into the heating oven, and includes a detection system that selects preforms likely to cause incidents in said heating oven, and means for detaching each selected preform from its gripping head (7), which means apply pressure to the interior of the selected preform (2), on its base, and these consist of a nozzle (15) capable of directing a jet of pressurized fluid at said base. The gripping member (6) and the gripping head (7) comprise an orifice in the form of a bore (9) that enables the jet of pressurized fluid to be applied directly into the selected preform. |