Hollow part method and apparatus for manufacturing the same

Disclosed are a hollow part and a method and an apparatus for manufacturing the same. The method for manufacturing a hollow part according to one embodiment of the present invention comprises: a first step of molding a first injection-molded part; a second step of molding a second injection-molded p...

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Bibliographische Detailangaben
Hauptverfasser: RYU YEON SUN, JEONG GWAN SIK, JUNG KYONG HO, HONG LIN PYO, KIM SUNG GON
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:Disclosed are a hollow part and a method and an apparatus for manufacturing the same. The method for manufacturing a hollow part according to one embodiment of the present invention comprises: a first step of molding a first injection-molded part; a second step of molding a second injection-molded part; a third step of making the first injection-molded part and the second injection-molded part face each other; a fourth step of making the first injection-molded part and the second injection-molded part approach to each other; and a fifth step of coupling the first injection-molded part with the second injection-molded part. In the fifth step, a coupling boss of the first injection-molded part is forcibly fitted into a coupling hole of the second injection-molded part. Accordingly, the coupling of the first injection-molded part with the second injection-molded part can be performed without additional injection molding, and damage and breakage to the coupling boss and the coupling hole can be prevented. 중공형 부품, 중공형 부품의 제조방법 및 중공형 부품의 제조장치가 개시된다. 본 발명의 실시예에 따른 중공형 부품의 제조방법은, 제1 사출부품을 성형하는 제1 단계, 제2 사출부품을 성형하는 제2 단계, 제1 사출부품과 제2 사출부품이 마주하도록 하는 제3 단계, 제1 사출부품과 제2 사출부품을 접근시키는 제4 단계, 및 제1 사출부품과 제2 사출부품을 결합시키는 제5 단계를 포함한다. 제5 단계에서 제1 사출부품의 체결보스가 제2 사출부품의 체결홀에 억지끼움된다. 이에 따라, 추가적인 사출없이 제1 사출부품과 제2 사출부품 간의 고정이 이루어지고, 체결보스와 체결홀의 파손 및 손상을 방지할 수 있다.