Blow molding mold for plastic bottle
AssigneeDai Nippon Printing Co., Ltd.
InventorsYusuke SUGA, Takuma MIYAWAKI
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Abstract
A blow molding mold which can reduce the production cost and can easily perform replacement work. The blow molding mold includes a body mold, a bottom mold and a neck mold. The neck mold is provided with a first cooling mechanism. The body mold includes an inner body mold corresponding to the outer surface of a body portion of a plastic bottle, and an outer shell located outside the inner body mold. The inner body mold can be attached/detached to/from the outer shell when replacing the inner body mold in conformity with the shape of the plastic bottle.
Claims19
A blow molding mold for a plastic bottle, configured to blow-mold a plastic bottle having a body portion, a bottom portion below the body portion, a mouth portion above the body portion, and a neck position located between the body portion and the mouth portion, comprising:
- a body mold corresponding to the body portion of the plastic bottle;
- a bottom mold corresponding to the bottom portion of the plastic bottle;
- and
- a neck mold corresponding to the neck portion of the plastic bottle, wherein the neck mold is provided with a first cooling mechanism;
- the body mold includes an inner body mold having an inner surface corresponding to the outer surface of the body portion, and an outer shell located outside the inner body mold;
- the inner body mold of the body mold can be attached/detached to/from the outer shell when replacing the inner body mold in conformity with the shape of the plastic bottle;
- and the first cooling mechanism has a coolant flow passage which extends in the neck mold and which overlaps the inner body mold in a plan view.
Dependencies are inferred from the claim text.