Method for forming a pattern onto an article during injection mo

Details Method for forming a pattern onto an article during injection mo Method for forming a pattern onto an article during injection mo

1995-04-25

1999-07-20

Silbaugh, Jan H.

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

264511, 264553, 2642972, 2643281, 264160, 264163, 264259, 264544, 425112, 4251261, 425297, 4254051, 425388, 425DIG48, 425DIG221, B29C 5318, B29C 4516, B29C 5110

Patent

active

059253029

ABSTRACT:
In the method, after the pattern-bearing film is fed to the female mold, the distal end of the film is fixed under a lower portion of the female mold, and at the same time the film is retreated by a force from the film supply portion. Thus, this tightens up the film so that the slacks or wrinkles cannot be formed on the film. Therefore, the film can be fortunately spread around the parting surface of the female mold. In the apparatus, the film suppressing frame is pressed to the female mold through the sliding rod arranged in the female mold, in such a manner that the female mold embraces the frame. Thus, the pressing of the frame is performed by a simple structure, and the film is accurately positioned to the internal surface of the female mold. Also, the film suppressing frame is constituted to advance from and retreat to the female mold. Thus, this causes a space between the both molds and an outside standby position to be useless. A space around the apparatus can be effectively utilized.

REFERENCES:
patent: 3743458 (1973-07-01), Hallauer et al.
patent: 4545752 (1985-10-01), Hanamoto et al.
patent: 4639341 (1987-01-01), Hanamoto et al.
patent: 4702877 (1987-10-01), Davis, Jr.
patent: 4994224 (1991-02-01), Itoh et al.
patent: 5096652 (1992-03-01), Uchiyama et al.
patent: 5232653 (1993-08-01), Addeo et al.
patent: 5415536 (1995-05-01), Ohno

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