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AssigneeKrones AG
InventorsBenedikt Hengl, Daniel Vogler, Markus Kulzer, Dominik Meier
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Disclosed is a method for forming plastic preforms into plastic containers, wherein a preform is expanded into the container by exposure to a flowable medium, wherein the flowable medium is stored under a first pressure in a first pressure reservoir and is stored under a second pressure higher than the first pressure in a second pressure reservoir, and the preform is subjected to first and second blowing pressures via a flow connection between the first and second pressure reservoirs, respectively. The preform and at least at times, the flowable medium is returned to the first pressure reservoir, wherein first values characteristic of the action of the flowable medium on the preforms are predetermined, wherein taking into account the first values, second values are determined which are characteristic for a period of time of the return of the flowable medius into the first pressure reservoir.
A method of forming plastic preforms into plastic containers, wherein a plastic preform is expanded into the plastic container by exposure to a flowable medium, wherein the flowable medium is stored under a first pressure in a first pressure reservoir and under a second pressure which is higher than the first pressure in a second pressure reservoir, and wherein the plastic preform is acted upon by a first blowing pressure via a flow connection between the first pressure reservoir and the plastic preform and is acted upon by the second blowing pressure via a flow connection between the second pressure reservoir and the plastic preform, and wherein flowable medium is at least temporarily returned to the first pressure reservoir, wherein first values characteristic of the application of the flowable medium to the plastic preforms are predetermined
An apparatus for forming plastic preforms into plastic containers, having at least one forming station which has a pressurizing device which is configured for expanding a plastic preform into the plastic container by application of a flowable medium, having a first pressure reservoir for storing the flowable medium under a first pressure and a second pressure reservoir for storing the flowable medium under a second pressure which is higher than the first pressure and with a first flow connection between the first pressure reservoir and the plastic preform in order to apply a first blowing pressure to the plastic preform via this flow connection between the first pressure reservoir and the plastic preform and with a second flow connection between the second pressure reservoir and the plastic preform in order to apply a second blowing pressure to the plastic preform via the flow connection between the second pressure reservoir and the plastic preform, wherein, furthermore, at least at times flowable medium is returned from the container into the first pressure reservoir, and having a control device which presets first values characteristic of a start time or a time period of the return of the flowable medium from the first pressure reservoir on the plastic preforms
Dependencies are inferred from the claim text.