Method and apparatus for blow-molding containers
AssigneeKhs Corpoplast GmbH
InventorsMichael Linke, Michael Litzenberg, Frank Berger, Rolf Baumgarte, Frank Lewin
Life of this patent
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Abstract
The method and the apparatus serve for blow-molding containers. After thermal conditioning, a parison is formed into the container within a blowing mold of a blow-molding machine (41) by the action of blow-molding pressure. The required blow-molding gas is provided by a compressor (42). A compressor controller (44) is connected to a controller of the blow-molding machine in such a way that the controller of the blow-molding machine generates a setpoint value (49) for the initial pressure which is provided by the compressor.
Claims18
A method for blow molding containers, in which a preform is subjected to thermal conditioning and then molded into a container in a blow mold of a blow-molding machine by the action of blowing pressure, and in which the blowing gas is supplied by a compressor, wherein a compressor controller (44) is connected with a controller (45) of the blow-molding machine (41) in such a way that the controller (45) of the blow-molding machine (41) generates a set point for the output pressure generated by the compressor (42), wherein an output pressure of the compressor (42) is determined by the addition of a blowing pressure required by the blow-molding machine (41) and an additional differential pressure.
An apparatus for blow molding containers, which has at least one blowing station with a blow mold, and in which the blowing station is connected with a compressor that has a compressor controller, wherein the compressor controller (44) is connected with a controller (45) of the blow-molding machine (41) and that an output of the controller (45) of the blow-molding machine (41) is connected to a set point input (48) of the compressor controller (44), wherein the controller (45) has a computing unit for determining a required output pressure of the compressor (42) by addition of a practical blowing pressure and a differential pressure.
Dependencies are inferred from the claim text.