Process and device for hydraulic drive of injection molding machines

An acceleration pressure is used as set value for the movement of the mass which is to be shifted, such as the mold clamping unit in an injection molding machine. For this purpose it is proposed to use preferably an electrically modulated pressure control valve for the pressure regulating device in...

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Hauptverfasser:	STILLHARD BRUNO J, SIEGRIST RONALD
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS 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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creator	STILLHARD BRUNO J SIEGRIST RONALD
description	An acceleration pressure is used as set value for the movement of the mass which is to be shifted, such as the mold clamping unit in an injection molding machine. For this purpose it is proposed to use preferably an electrically modulated pressure control valve for the pressure regulating device in the pressure drive system. Even with extremely short acceleration periods resonance oscillations are avoided, which until now prohibited the reduction of the acceleration period. With computing devices the movement of the mass can now be really controlled in relation to a selected velocity profile and/or a position profile or at least a part thereof.
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subjects	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS 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
title	Process and device for hydraulic drive of injection molding machines
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