Injection molding apparatus for Worm-wheel

An injection molding apparatus for worm wheels of the present invention comprises: an injection mold having a cavity for injection-molding a worm wheel; and a sprue gate injecting an injection molten liquid into the cavity, wherein a guide member protruding to generate a rotational flow in the injec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HONG, SEONG JONG, KWAK, DONG CHEOL
Format:	Patent
Sprache:	eng ; kor
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:	An injection molding apparatus for worm wheels of the present invention comprises: an injection mold having a cavity for injection-molding a worm wheel; and a sprue gate injecting an injection molten liquid into the cavity, wherein a guide member protruding to generate a rotational flow in the injection molten liquid is additionally included on the inside of the sprue gate. Accordingly, the rotational flow is generated in the injection molten liquid by the sprue gate, and thus the occurrence of bubbles in an injection-molded product or the injection molten liquid is minimized. 본 발명의 웜휠 사출성형장치는, 웜휠을 사출 성형하도록 캐비티가 형성된 사출금형; 및 상기 캐비티로 사출용융액을 토출하는 스프루 게이트;를 포함하되 상기 스프루 게이트의 내측으로 사출용융액에 회전 유동을 발생시키도록 돌출된 가이드 부재가 더 구비된 것을 특징으로 한다. 이에 따라, 스프루 게이트에 의해 사출용융액은 회전 유동이 발생하여 사출 성형된 제품 또는 사출용융액의 기포 발생을 최소화하는 효과가 있다.