Apparatus for producing resin molded article, method for producing resin molded article, and resin molded article
AssigneeNissei Asb Machine Co., Ltd.
InventorsRyo KAWAMURA, Masayuki USAMI
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Abstract
A production apparatus of a two-layer preform including an inner layer preform and an outer layer preform includes: an outer layer cavity mold for injection-molding the outer layer preform. A bottom surface of the outer layer cavity mold is provided with a protrusion for separating the inner layer preform disposed in the outer layer cavity mold from the bottom surface.
Claims8
A production apparatus of a two-layer preform including an inner layer preform and an outer layer preform, the apparatus comprising:
- an outer layer cavity mold for injection-molding the outer layer preform, wherein
- a bottom surface of the outer layer cavity mold is provided with a protrusion for separating the inner layer preform disposed in the outer layer cavity mold from the bottom surface.
A production method of a two-layer preform including an inner layer preform and an outer layer preform, the production method comprising:
- injection-molding the inner layer preform;
- disposing the injection-molded inner layer preform in an outer layer cavity mold for injection-molding the outer layer preform;
- and
- injection-molding the outer layer preform on an outer surface of the inner layer preform, wherein
- a bottom surface of the outer layer cavity mold is provided with a protrusion for separating the inner layer preform disposed in the outer layer cavity mold from the bottom surface.
A resin molded article, wherein
- the resin molded article has a two-layer structure including an inner layer bottle molded from an inner layer preform and an outer layer bottle molded from an outer layer preform, and a through-hole is formed in a bottom portion of the outer layer bottle.
Dependencies are inferred from the claim text.