METHOD FOR INJECTION MOLDING AND INJECTION APPARATUS FOR ITS INJECTION MOLDING MACHINE

PURPOSE:To control precisely and accurately the rate of injection, to set a large dwelling pressure for a long time and to widen the width of condition for setting of dwelling in molding a resin. CONSTITUTION:In an injection process, rotational movement of an electric motor 51 for forwarding and ret...

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Bibliographische Detailangaben
Hauptverfasser:	KITAICHI SATOSHI, KIMOTO HIDETOSHI
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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Beschreibung
Zusammenfassung:	PURPOSE:To control precisely and accurately the rate of injection, to set a large dwelling pressure for a long time and to widen the width of condition for setting of dwelling in molding a resin. CONSTITUTION:In an injection process, rotational movement of an electric motor 51 for forwarding and retreating is transferred into a linear movement by means of a ball screw 45 and a ball screw nut 43 to forward a screw 15 and in a dwelling process, dwelling is performed by pushing pressure of the screw 15 based on a dwelling cylinder A57.