B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/707
B29C 45/68 (2006.01)
Patent
CA 1037666
AN INJECTION MOLDING MACHINE HAVING SEPARATE MOLD MOVING AND MOLD CLOSURE FORCE APPLYING MEANS WHICH ARE RESETTABLE ABSTRACT OF THE DISCLOSURE An injection molding machine comprises a fixed mold clamping plate and a movable mold clamping plate which is movable toward and away from the fixed clamping plate and is connected both to a guide housing which has a piston portion movable in a hydraulic motor cylinder and also to a cross head piston which is guided in the guide housing and which is operated by a rotary drive including a rotatable crank shaft which is connected to the cross head piston through a connecting rod. The piston portion of the guide housing is hollow and it carries a bushing. A power member having a screw portion which is rotatable is actually displaceable upon rotation in respect to the bushing. Spring means are provided between the bushing and a collar carried on the power member so that the piston and hence the guide housing connected thereto will be moved to a neutral position after each operation of the device. The neutral position may be shifted by rotating the power screw to change the position of the collar relative to the bushing. -1-
200712
Maschinenfabrik Und Giesserai Netstal Ag
Na
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