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US 11,077,602 B2Granted
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 disposed adjacent to a molding die, thereby sterilizing at least the molding die and an extension rod that extends into the molding die through the valve block.
Claims3
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 part, which comprises a molding die, that molds the preform into the container by blow air, the heating part and the molding part being sequentially arranged from an upstream side to a downstream side along the transfer device,
- a chamber, which has an interior, that covers the heating part and the molding part,
- 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, and
- a housing box that covers the extension rod, the housing box having a ventilation part that passes a mist or gas of hydrogen peroxide or a mixture thereof from the housing box to the interior of the chamber to sterilize the molding part in the chamber.
3 more elements
Dependencies are inferred from the claim text.