EJECTOR ASSEMBLY FOR FORMING MACHINE

The disclosed ejector assembly provides for a very rapid removal of a workpiece from a forming machine by an assembly which includes a pair of ejector members operating through a hydraulic chamber. A first ejector member of the pair is directly linked to a reciprocating portion of the machine so as...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BERGEMANN W,US, BUCHANAN W,US
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED PRESSES PRESSES IN GENERAL RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The disclosed ejector assembly provides for a very rapid removal of a workpiece from a forming machine by an assembly which includes a pair of ejector members operating through a hydraulic chamber. A first ejector member of the pair is directly linked to a reciprocating portion of the machine so as to follow each forming and return stroke of the machine, and the second ejector member responds to a movement of the first ejector member only during a return stroke of the machine to effect an immediate removal of a workpiece from the machine. A differential rate of travel is provided between the pair of ejector members to provide a gradually increasing clearance between the workpiece and one forming surface of the machine so that the second ejector member can immediately respond to a return stroke of the machine to cause a very rapid separation of the workpiece from a forming surface of the machine.