Blow molding device and blow molding method for resin container
AssigneeNissei Asb Machine Co., Ltd.
InventorsHiroshi HORIGOME, Toshio NAKAJIMA
Life of this patent
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Abstract
A blow molding apparatus includes: a temperature adjusting unit configured to supply a preform with cooling air to perform a temperature adjustment of the preform, the preform having been injection-molded, having a bottomed shape and made of a resin; a blow molding unit configured to blow-mold the preform that has been subjected to a temperature adjustment with blow air, and configured to manufacture a container made of a resin; an air tank configured to supply the temperature adjusting unit with the cooling air; and a recovery unit configured to recover the blow air exhausted from the blow molding unit into the air tank.
Claims10
A blow molding apparatus comprising:
- an injection-molding unit configured to injection-mold a preform having a bottomed shape and made of a resin;
- a temperature adjusting unit configured to flow cooling air inside the preform having residual heat form injection molding to adjust a temperature of the preform;
- and
- a blow molding unit configured to blow-mold the preform that has been subjected to a temperature adjustment with blow air to manufacture a container made of a resin,
- wherein the temperature adjusting unit is provided with a cooling air supply portion having a temperature adjustment air flow path that circulates cooling air inside the preform,
- the temperature adjustment air flow path includes a first flow path that introduces the cooling air into the preform and a second air flow path that exhausts the cooling air from the preform, and the first air flow path and second air flow path are capable to be connected through the inside of the preform,
- the first air flow path is provided with a measuring unit configured to measure pressure of the cooling air, and
- the second air flow path is provided with an adjusting unit configured to adjust a flow rate of the cooling air.
A blow molding method comprising:
- injection-molding a preform having a bottomed shape and made of a resin;
- flowing cooling air inside the preform having residual heat form injection molding to adjust a temperature of the preform;
- and
- blow-molding the preform that has been subjected to a temperature adjustment with blow air to manufacture a container made of a resin,
- wherein in adjusting the temperature of the preform, the cooling air is introduced into the preform from a first air flow path provided with a measuring unit configured to measure pressure of the cooling air, and the cooling air in the preform is exhausted from a second air flow path provided with an adjusting unit configured to be adjustable flow rate of the cooling air, and the cooling of the preform is performed.
Dependencies are inferred from the claim text.