VALVE NOZZLE FOR INJECTION MOLDING

A channel (11) is closed by contact of ring (12) with the pointed end of sprue (13) through spring (16). When molten resin is introduced into resin supply inlet (9), spring (16) is compressed by the pressure of molten resin so that the sprue is advanced. Thus, a gap is formed between the ring and a...

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Bibliographische Detailangaben
Hauptverfasser:	KABASHIMA SHOSHI, MARUYAMA YOSHIO
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:	A channel (11) is closed by contact of ring (12) with the pointed end of sprue (13) through spring (16). When molten resin is introduced into resin supply inlet (9), spring (16) is compressed by the pressure of molten resin so that the sprue is advanced. Thus, a gap is formed between the ring and a groove (14) of sprue so that rear channel (116) is connected to front channel (11a). Therefore, the molten resin is injected into the mould from injection port (10) of a nozzle head (8).