A extruder for Apex of tyre

Disclosed is an apex rubber extruder. According to the present invention, the apex rubber extruder comprises: a cylindrical body, a transfer screw installed in the cylindrical body to transfer an apex rubber, a die head part disposed adjacent to the transfer screw having a cylindrical body to discha...

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Bibliographische Detailangaben
1. Verfasser: OH, HYUN HWAN
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:Disclosed is an apex rubber extruder. According to the present invention, the apex rubber extruder comprises: a cylindrical body, a transfer screw installed in the cylindrical body to transfer an apex rubber, a die head part disposed adjacent to the transfer screw having a cylindrical body to discharge the apex rubber, and a bead extrusion die part. Also, a rotation driving force transfer unit for receiving rotational force by a rotation driving force generating unit to rotate the cylindrical body is provided on the outer circumferential surface of the cylindrical body. In addition, a discharge part including the die head part and the bead extrusion die part is disposed on a discharge surface of the cylindrical body to vary a position of a discharge hole. According to the present invention, an apex rubber extruded product is extruded into a desired bead circular circumference (bead circumference) to significantly reduce a dimensional defect of a bead part during the tire molding. As a result, a so-called pot defect in which a shape of the apex rubber extruded product is bent, can be purged. 본 발명은 에이펙스고무 압출기를 개시한다. 본 발명에 따르는 에이펙스고무 압출기는 원통형 몸체와 이 원통형 몸체에 설치되어 에이펙스고무를 이송시키는 이송스크류, 이 원통형 몸체의 이송스크류에 근접하여 배치되어서 에이펙스고무를 토출하는 다이헤드부와 비드압출다이부를 포함하고, 상기 원통형몸체의 외주면에는 회전구동력발생부에 의한 회전력을 전달받아 원통형몸체를 회전시키는 회전구동력전달부가 구비되고, 다이헤드부와 비드압출다이부를 포함하는 토출부가 원통형몸체의 토출면에 배치되어 토출홀의 위치를 가변시키는 것을 특징으로 하는데, 이에 의할 때, 에이펙스고무 압출물을 원하는 비드 원형둘레(비드주 : bead 周)로 압출하여 타이어 성형시 비드부 치수불량을 대폭 감소시켜 압출되는 에이펙스고무 압출물의 형상이 휘어지는, 소위 '항아리' 불량을 일소시킬 수 있다.