Method and apparatus for adjusting the center of gravity of the

Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article

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Details

2643281, 249137, 425192R, 425577, 425468, B29C 4514, B29C 3376

Patent

active

054096561

ABSTRACT:
A molding die having, an outer eccentric ring slidably fitted in an axle hole of a boss molding die assembly of a molding die unit, outer eccentric ring being formed with an eccentric hole the center of which is deviated from the center of the outer eccentric ring, an inner eccentric ring slidably fitted in this eccentric hole of the outer eccentric ring, and a holding pin for holding an insert and slidably fitted in the inner eccentric ring at a point which is deviated from the center of the inner eccentric ring. In adjusting the balance, the position of the holding pin is adjusted such that the center of rotation coincides with the center of gravity of the molded articles. In forming the die, the insert held by the holding pin of which position was adjusted is embedded in the molded article.

REFERENCES:
patent: 4047692 (1977-09-01), Swin, Sr.
patent: 4107257 (1978-08-01), Swin, Sr.
patent: 5034170 (1991-07-01), Briggs, Jr. et al.

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