Method for pre-treating preforms and blow molding apparatus for pre-treating and blow molding preforms into containers

摘要

A method for pre-treating preforms (12) made of thermoplastic plastic, before they are shaped into containers (13) by means of a stretch blow molding process and filled with liquid. The preforms (12) are tempered and sterilized for the subsequent stretch blow molding process. Tempering of the preforms (12) is carried out by means of microwave radiation and by sterilization of the preforms (12) during the pre-treatment.

主权项

1. A method for pre-treating preforms of thermoplastic synthetic material, before the preforms are formed into containers by a blow molding process, comprising:
tempering and sterilizing the preforms for the blow molding process, a handling unit handling the preforms during the tempering by a tempering unit, a sterilization unit performing the sterilization being integrated at least partially in the handling unit, the preforms being transported by the handling unit, the handling unit including retaining thorns, each retaining thorn for holding a respective preform in a preform neck region, and each retaining thorn having at least one pipe for introduction of sterilizing medium into the respective preform, the pipe being arranged in the retaining thorn holding the respective preform.