INJECTION MOLDING PRESS

In an injection molding press of the present invention, a plunger is inserted into a barrel and a material inlet is provided on the rear side of the barrel. A valve seat is provided in the inner periphery of the barrel and a valve body which can be brought into contact with the valve seat is provide...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SONODA, TAKEFUMI
Format:	Patent
Sprache:	eng ; fre
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:	In an injection molding press of the present invention, a plunger is inserted into a barrel and a material inlet is provided on the rear side of the barrel. A valve seat is provided in the inner periphery of the barrel and a valve body which can be brought into contact with the valve seat is provided on the end of the plunger. In addition, a lengthwise moving unit is aligned with the plunger and, when the plunger is moved lengthwisely, a portion having increasing diameters is brought into contact with a portion having decreasing diameters so that a material passage is opened and closed. A sleeve is engaged in the end of the barrel in such a manner that it can slide in the axial direction of the barrel and has an injection hole at one end. A lengthwise barrel-moving unit is provided on the barrel or the plunger. After a material has been stored in the barrel, the barrel is moved forward so that the material is injected from the injection hole into a mold.