DEVICE FOR MANUFACTURING THE BLOWED CONTAINER IN WHICH THE EXTENDED BLOWING GAS IS DIRECTED TO A HOT ACCESSORY FOR VENTILATION COOLING

摘要

The invention proposes a device (10) for manufacturing containers (12) made of thermoplastic material by blowing a preform (14), the device (10) comprising: - a cavity (18) for molding intended to receive a preform ( 14); a blowing nozzle (24) which is capable of injecting a compressed gas into the preform (14); an exhaust pipe (32) which connects the nozzle (24) with an outlet end port (34) into the atmosphere and in which the compressed gas is expanded to atmospheric pressure so that the flow gas leaving the outlet orifice (34) is cold; an accessory (44) comprising a source of heat; characterized in that the outlet orifice (34) is arranged near the hot accessory (44) so that at least a portion of the cold gas flow is directed to the hot accessory (44) to cool the accessory (44) by ventilation.