Two-platen injection molding machine without tie bars
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United States of America Patent
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-
Apr 20, 1999
Grant Date -
N/A
app pub date -
Oct 24, 1996
filing date -
Oct 26, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two-platen injection molding machine without tie bars has a platen fixed relative to the machine frame and a platen that moves relative to it, a traverse mechanism that operates the movable platen, a device for generating clamping force and a device to compensate for the deformation forces occurring during generation of the clamping force. The traverse mechanism and the device for generating clamping force are decoupled. Preferably, the device for generating clamping force has at least one connecting rod that passes through both the fixed and movable platens beneath the mold space. The connecting rod is detachably fastened to one of the platens and can be locked to the other platen by means of a clamping device that produces the clamping force. The device to compensate for the deformation forces includes at least one rigid spacer detachably fastened at one end to one platen, while the other end of the spacer is forced against the other platen.
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