Stamper plate attaching/detaching device of an injection mold fo

Details Stamper plate attaching/detaching device of an injection mold fo Stamper plate attaching/detaching device of an injection mold fo

1996-09-26

2000-02-01

Ryan, Patrick

Plastic article or earthenware shaping or treating: apparatus

With direct application of magnetic force to manipulate...

425192R, 425193, 425810, 425DIG33, B29C 4517

Patent

active

060195878

ABSTRACT:
A stamper plate attaching/detaching device of an injection mold for forming an optical disc substrate wherein a stamper plate is supported in a cavity which is formed by a cavity side disc cavity plate, a movable disc cavity plate, and a cavity ring. The stamper plate attaching/detaching device is equipped with a section for holding the outer circumferential rim of the stamper plate by means of the inner circumferential rim of the cavity ring, which inner circumferential rim is larger than the outer diameter of the stamper plate. A plurality of pairs of permanent magnets, which have magnetic poles in parallel with respect to a central line are buried, with phase differences, on the same radial line of the cavity side disc cavity plate and the movable disc cavity plate. The cavity ring rotates between a first angle position and a second angle position in relation to the cavity side disc cavity plate and the movable disc cavity plate.

REFERENCES:
patent: 4737096 (1988-04-01), Poorten
patent: 4907956 (1990-03-01), Ezaki et al.
patent: 5135376 (1992-08-01), Watanabe et al.
patent: 5326240 (1994-07-01), Kudo et al.
patent: 5612062 (1997-03-01), Takahashi

Affiliated with

Also associated with

Rating

Stamper plate attaching/detaching device of an injection mold fo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stamper plate attaching/detaching device of an injection mold fo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stamper plate attaching/detaching device of an injection mold fo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-932851