Injection mold of a plastic preform
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United States of America Patent
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Oct 24, 2017
Grant Date -
Dec 10, 2015
app pub date -
Jan 21, 2014
filing date -
Jan 21, 2013
priority date (Note) -
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Abstract
An injection mold of a plastic preform includes first, second and third parts, the third part having a molding cavity defining an axis and adapted to be fixed to a first surface of a mold frame; the second part between the first and third parts slides along the axis to close or open the cavity. The first part includes a rod that slides along the axis through a second surface of the frame. The second part includes:
- a guiding cage through which the longitudinal rod can slide; a structure; and parallel guiding rods extending to the structure;an assembly sliding inside the cage; and a punch sliding inside the structure and defining a first complementary component of the cavity;wherein the structure defines, together with the punch, a cam system for opening or closing two half-collars which define, when closed, a second complementary component of the cavity.
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