MOLD

PURPOSE:To close selectively and promptly a runner shaped on a mold by sliding a shutter plate to open and shut freely the runner. CONSTITUTION:When one side of a shutter plate 25 is brought into contact with one end of a concave place 43, a slit 28 forms aline with a runner 42 and when the other si...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	OOISHI MINORU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY 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 close selectively and promptly a runner shaped on a mold by sliding a shutter plate to open and shut freely the runner. CONSTITUTION:When one side of a shutter plate 25 is brought into contact with one end of a concave place 43, a slit 28 forms aline with a runner 42 and when the other side of the shutter plate 25 is brought into contact with the other side of the recess 43, the runner 42 that has been agreed with the slit 28 is shutted by the shutter plate 25. In the mold that uses such a runner block 41, the upper surface is exposed outside when the molds are opened, therefore the manual slide of the shutter plate 25 can be conducted easily without overhauling the mold. Therefore, the opening and shutting of the runner can be conducted easily and promptly even when the molds are mounted on the molding machine. Though a part of a cavity is broken when in use, change of molding etc. can be conducted instantly and promptly by other part of the cavity on the way.