Blow-molding machine and method of sterilizing the same
AssigneeDai Nippon Printing Co., Ltd.
InventorAtsushi HAYAKAWA
Life of this patent
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Abstract
To simply sterilize a blow-molding machine. A mist or gas of hydrogen peroxide or a mixture thereof is introduced through a valve block (14) disposed adjacent to a molding die (13), thereby sterilizing at least the molding die (13) and an extension rod (15) that extends into the molding die (13) through the valve block (14).
Claims8
A method of sterilizing a blow-molding machine, wherein a mist or gas of hydrogen peroxide or a mixture thereof is introduced through a valve block disposed adjacent to a molding die to sterilize at least the molding die and an extension rod that extends into the molding die through the valve block.
A blow-molding machine, comprising a transfer device that transfers a preform and a container from where the preform is supplied to the blow-molding machine to where the preform is molded into the container, a heating part that heats the preform to a blow molding temperature, a molding die that molds the preform into the container by blow air, the heating part and the molding die being sequentially arranged from an upstream side to a downstream side along the transfer device, a valve block disposed adjacent to the molding die, and an extension rod capable of protruding into and retracting from an interior of the molding die through the valve block,
- wherein in sterilization of the blow-molding machine, the molding die is opened, the extension rod is retracted from the interior of the molding die, and then a mist or gas of hydrogen peroxide or a mixture thereof is supplied to the molding die and the extension rod through the valve block.
Dependencies are inferred from the claim text.