Opening/closing apparatus and molding apparatus
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United States of America Patent
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Oct 31, 2017
Issued Date -
N/A
app pub date -
Jul 1, 2015
filing date -
Jul 1, 2014
priority date (Note) -
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Abstract
The present invention aims to stably maintain the posture of a crosshead by means of guide bars without an increase in the size of a link housing or tie bars. An opening/closing apparatus according to the present invention includes: a pressure-receiving plate (14); a fixed platen (12) to which a fixed mold (18) is to be mounted; a frame (11) on which the pressure-receiving plate (14) and the fixed platen (12) are installed; and a movable platen (16) which is movable on the frame (11) and to which a movable mold (19) is to be mounted. The opening/closing apparatus also includes: a crosshead movement mechanism including guide members (50) extending from the pressure-receiving plate (14), and a crosshead (25) whose movement is guided by the guide members (50); an opening/closing mechanism for opening/closing a mold, including a toggle link mechanism (22) connecting the pressure-receiving plate (14), the crosshead (25) and the movable platen (16), and a drive mechanism for driving the toggle link mechanism (22); and a guide member support mechanism for supporting the guide members (50). The guide member support mechanism has support portions (56) which are slidable on the upper surface of the frame (11).
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