Cooling mold, and apparatus and method for manufacturing resin molded article
AssigneeNissei Asb Machine Co., Ltd.
InventorsDaisaburo Takehana, Yasuhide Maruyama
Life of this patent
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Abstract
A cooling mold for cooling a resin preform that has a gate portion protruding outward from a center of a bottom portion, in which an accommodating space that accommodates the preform is formed in the cooling mold, a bottom region facing the bottom portion of the preform in the accommodating space has a shape following the bottom portion of the preform, and an air sucking hole for sucking air is formed in the bottom region at a position shifted from the center of the bottom portion of the preform. In the accommodating space, a region facing a body portion of the perform and a bottom region facing the bottom portion of the perform are formed as a single member.
Claims8
A mold for cooling a resin preform that has a gate portion protruding outward from a center of a bottom portion, wherein
- an accommodating space that accommodates the preform is formed in the mold,
- a bottom region facing the bottom portion of the preform in the accommodating space has an internal shape following an outer shape of the bottom portion of the preform, and
- a plurality of air sucking holes that sucks air is formed in the bottom region at a position shifted from the center of the bottom portion of the preform,
- such that there is no air sucking hole at a position facing the gate portion of the preform in the mold, and an internal surface of the bottom region following the outer shape of the bottom portion of the preform faces the gate portion,
- such that the mold is adapted for:
- sucking air from the air sucking holes of the mold and drawing the preform into the accommodating space;
- and
- collapsing the gate portion in the bottom region to remove the gate portion.
Dependencies are inferred from the claim text.