BLOW MOLDING METHOD

PURPOSE:To easily remove the flash of a molding by pulsating mold clamping force of a mold in a mold clamping state while parison is molded into the shape of a cavity. CONSTITUTION:When a mold 2 is completely clamped, air for molding is blown into parison P and the parison P is molded into the shape...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	KONO YOSHIKATSU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES 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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To easily remove the flash of a molding by pulsating mold clamping force of a mold in a mold clamping state while parison is molded into the shape of a cavity. CONSTITUTION:When a mold 2 is completely clamped, air for molding is blown into parison P and the parison P is molded into the shape of the cavity of the mold. Simultaneously a controlling signal. (b) is sent from a controller and a high-speed solenoid valve 44 is opened and closed at a specific period. When the high-speed solenoid valve 44 is opened, a part of oil supplied to hydraulic pressure cylinders 11 is returned to a hydraulic pressure tank 42 through a hydraulic pressure return pipe 43. When the high-speed solenoid valve 44 is closed, hydraulic pressure supplied to the hydraulic pressure cylinders 11 is returned to the initial mold clamping pressure. The mold clamping pressure is pulsated while parison P is molded into the shape of a product.