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US 9,849,623 B2Granted
Hollow part manufacturing machine
AssigneeKrones AG
InventorsEduard Handschuh, Paul Brinster, Thomas Hoellriegl, Christoph Brandl
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AssigneeKrones AG
InventorsEduard Handschuh, Paul Brinster, Thomas Hoellriegl, Christoph Brandl
Estimating the term…
Hollow part manufacturing machine includes at least one mold in which hollow parts can be manufactured by application of a pressurized medium, a valve unit, having at least two valves, wherein an inlet of a second valve is connected to a second pressure accumulator, which is pressurized under a second pressure, and an outlet of the second valve is connected to a blow nozzle via a channel. The inlet of a first valve is connected to a first pressure accumulator that is under a first pressure and the outlet of the first valve is also connected to the blow nozzle via a channel. During at least a part of the molding process, the blow nozzle seals the material to be molded, and/or the mold, relative to the environment.
A hollow part manufacturing machine comprising at least one mould in which hollow parts can be manufactured by application of a pressurised medium, a valve unit having at least two valves, wherein an inlet of a second valve is connected to a second pressure accumulator, which is pressurised under a second pressure, and an outlet of the second valve is connected to a blow nozzle via a channel, wherein an inlet of a first valve is connected to a first pressure accumulator, which is pressurised under a first pressure, and an outlet of the first valve is also connected to the blow nozzle via a channel, wherein, during at least part of the moulding process, the blow nozzle seals the material to be moulded, and/or the mould, relative to the environment, wherein the first valve has a valve housing, and in the housing a cavity is formed between the inlet and the outlet, within which the medium can be supplied during the moulding process and within which at least a part of a switching element is arranged, with which an opening and closing of the first valve can be carried out, wherein that at least two flow paths, which are separated from each other by material of the housing and/or of the switching element, can be provided for the medium, between the inlet and the outlet of the first valve.
A method for manufacturing hollow parts in a mould by application of a pressurised medium, wherein the medium is supplied via a valve unit, which has at least two valves, to the hollow part, wherein an inlet of a second valve is connected to a second pressure accumulator, which is pressurised under a second pressure, and an outlet of the second valve is connected to a blow nozzle via a channel, wherein the inlet of a first valve is connected to a first pressure accumulator, which is pressurised under a first pressure, and the outlet of the first valve is also connected to the blow nozzle via a channel, wherein, during part of the moulding process, the blow nozzle seals the material to be moulded, and/or the mould, relative to the environment, wherein the first valve has a valve housing, and in the housing a cavity is formed between the inlet and the outlet, in which, during the moulding process, the medium is supplied and in which at least a part of a switching element is arranged, with which an opening and a closing of the first valve can be carried out, wherein the medium flows between the inlet and the outlet of the first valve through at least two flow paths, which are separated from each other by material of the housing and/or of the switching element.
Dependencies are inferred from the claim text.