Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate
2006-05-09
2006-05-09
Heitbrink, Jill L. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
C425S150000, C425S589000
Reexamination Certificate
active
07041247
ABSTRACT:
In an injection compression-molding apparatus, a molded article is produced by setting molds10and11to an intermediate clamped state, and then by setting the molds10and11to a final clamped state by re-clamping the molds10and11to each other after injecting melted resin into a cavity defined by the molds10and11. The apparatus includes a clamping mechanism and a parallelism retaining mechanism20. The clamping mechanism has a mold-driving cylinder7for moving the movable mold10toward and away from the fixed mold11, a guide engaging member8, support panels4, 5, etc. so as to selectively set the molds10and11to the intermediate clamped state and the final clamped state. The parallelism retaining mechanism20retains parallelism between the molds10and11in the intermediate clamped state by giving a corrective force to mold attaching surfaces of the clamping mechanism where the respective molds10and11are mounted.
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Rosato et al., Injection Molding Handbook, 2nd edition, 1995, pp. 207-213.
Hotaka Toshiaki
Nagaoka Tsutomu
Heitbrink Jill L.
Kabushiki Kaisha Kobe Seiko Sho
Teijin Chemicals Ltd.
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