| 摘要 |
The invention relates to a method for the production of blow-moulded containers (2) that are sterile at least in certain regions, in a blow-moulding machine, in particular in a blow-moulding machine with blowing stations (3) arranged on a rotating blowing wheel (25), in which method a preform (1) of a thermoplastic material is first heated and then stretched in a blowing station (3) by a stretching rod (11), in particular a hollow stretching rod, and subjected to a pressurized blowing fluid via a blowing nozzle (10), and in which method a sterilizing fluid is supplied to the preform (1) in the blowing station (3) to perform a sterilization, wherein the sterilizing fluid is fed into the preform in the blowing station from an outlet and is carried away again via an inlet and in between follows a flow path, wherein the sterilizing fluid is made to pass through or pass by the stretching rod (11) on its flow path, and is characterized in that the sterilizing fluid is supplied while the blow-moulding machine continues to operate, in particular wherein the outlet is arranged at least for a time in the vicinity of the bottom of the preform (1), and in particular wherein the inlet is arranged at least for a time above the outlet, and in particular wherein a continuous flow of sterilizing fluid is produced between the outlet and the inlet and is directed along the preform and the stretching rod and the blowing nozzle. The invention also relates to a blow-moulding machine on which the method according to the invention can be carried out. |
