Opening/closing device, molding apparatus, and molding method
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United States of America Patent
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-
Aug 4, 2020
Grant Date -
Nov 2, 2017
app pub date -
Nov 17, 2015
filing date -
Nov 20, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An opening/closing device (14) includes: a stationary platen (20); a movable platen (22) capable of moving toward or away from the stationary platen (20); an opening/closing mechanism (28) having a plurality of toggle links (30, 31, 32) at least one (32) of which is connected to the movable platen (22); a driving device (37) including a cross head (26) connected to at least one (30) of the toggle links and capable of moving the movable platen (22); and a control portion (50). The control portion (50) is configured to control the cross head (26) such that the movable platen (22) moves at fixed speed during fine die-opening operation.
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