Method and apparatus for shaping plastics material pre-forms into plastics material containers
AssigneeKrones AG
InventorFrank Winzinger
Life of this patent
Estimating the term…
Abstract
A method of shaping plastics material pre-forms into plastics material containers is provided, in which the plastics material pre-forms are expanded inside a blow mould with the aid of an expansion agent and a stretch rod to form the plastics material containers, and in which at least the blow mould and/or the stretch rod is or are sterilized if necessary at least in part with sterilization agent, wherein, to sterilize the outer side of the stretch rod, the stretch rod is displaced at least in part into the blow mould, and the sterilization agents are brought from a discharge element arranged outside the stretch rod to the exterior face of the stretch rod.
Claims19
A method of shaping plastics material pre-forms into plastics material containers, comprising:
- the plastics material pre-forms are expanded inside a blow mould with the aid of an expansion agent and a stretch rod to form the plastics material containers;
- and in which at least the blow mould and/or the stretch rod is or are cleaned and/or sterilized if necessary at least in part with sterilization agent;
- wherein to clean and/or sterilize the outer side of the stretch rod, the stretch rod is displaced at least in part into the blow mould, and sterilization agents are brought from a discharge element arranged outside the stretch rod and/or a blow moulding nozzle to at least part of the exterior face of the stretch rod, while the stretch rod is situated in the blow mould.
An apparatus for the shaping of plastics material pre-forms into plastics material containers, comprising:
- at least one blow moulding device having a blow mould and a stretch rod, and with at least one sterilization device and/or cleaning device by means of which the blow moulding device is capable of being sterilized and/or cleaned at least in part, in particular in order to carry out the method according to any one of the preceding claims, wherein the at least one sterilization device and/or cleaning device is or are arranged in the region of the blow mould in such a way that the stretch rod can be treated with a sterilization agent and/or a cleaning agent from outside the stretch rod when the stretch rod is displaced into the blow mould.
A method of shaping plastics material pre-forms into plastics material containers, comprising:
- a blow moulding wheel which is driven continuously at least in a production or operation mode respectively and on which are arranged a plurality of blow moulding stations;
- and each blow moulding station comprises elements movable relative to the blow moulding wheel, such as in particular a stretch rod for the longitudinal expansion of the pre-forms or at least one openable blow mould for the discharge of the expanded plastics material containers;
- in which the plastics material pre-forms are expanded inside the blow mould to form the plastics material containers with the aid of an expansion agent and the stretch rod;
- and in which at least one moved element is cleaned and/or sterilized with a cleaning and/or a sterilization agent in a cleaning and/or sterilization mode and/or in the production mode, wherein at least one moved element is moved in the cleaning and/or sterilization mode to a position or into an orientation which differs from the positions or orientations respectively of the normal operating mode.
Dependencies are inferred from the claim text.