Self-alignment stage for compression-forming machines

Details Self-alignment stage for compression-forming machines Self-alignment stage for compression-forming machines

2006-11-28

2006-11-28

Gupta, Yogendra N. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Female mold and opposed coaxial dynamic press members

C425S408000, C425S418000, C425S440000

Reexamination Certificate

active

07140866

ABSTRACT:
A self-alignment stage for compression-forming machines, which self-aligns an upper surface of a lower mold seated on an inner frame, thus compensating for a relative pose error of the lower mold with respect to an upper mold when the material is compression-formed between the upper mold and the lower mold. The self-alignment stage for the compression-forming machines, includes an outer frame comprising a body having a space therein, a plurality of outer connectors protruding from a side surface of the body of the outer frame so as to support the body on a support base of a compression-forming machine, and the inner frame placed in the space of the outer frame such that the inner frame executes a horizontal translational motion and a rotational motion with respect to the outer frame. The self-alignment stage further includes a plurality of inner connectors to connect the inner frame to the outer frame while allowing the inner frame to execute the horizontal translational motion and the rotational motion with respect to the outer frame. The lower mold is seated on the inner frame is self-aligned by elasticity of the inner and outer connectors, so that the upper surface of the lower mold is in parallel surface contact with a lower surface of the upper mold when the material is compression-formed by the upper mold.

REFERENCES:
patent: 5370517 (1994-12-01), Casati et al.
patent: 5769297 (1998-06-01), Loomis et al.
patent: 6184063 (2001-02-01), McKenna et al.

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