Injection molding machine having a guide member
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United States of America Patent
Stats
-
Aug 14, 2012
Grant Date -
Jun 16, 2011
app pub date -
Dec 8, 2010
filing date -
Dec 11, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A screw is moved along an axis by a screw advancement-retraction mechanism. A screw rotation mechanism is supported for movement along the axis by a pair of supporting members, each includes a rail for use as a guide member. The supporting members are arranged individually along tie-bars for use as lateral members and extend parallel to the tie-bars. One longitudinal end portion of each supporting member is secured to a frame of an injection unit by a fixing portion including a fixing member. The other end portion of the supporting member is supported on each tie-bar by a movable portion including a sliding member. The sliding member is movable along an axis of the tie-bar. With this arrangement, deformation, if any, of the tie-bar is prevented from affecting the rail, so that the screw rotation mechanism and the screw can move steadily.
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