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发明授权
CN103813899B 圆环状构件成型方法及圆环状构件成型装置 失效 - 权利终止

圆环状构件成型方法及圆环状构件成型装置
摘要：
本发明的目的在于，提供一种即使是包括厚壁的内周部分和薄壁的外周部分的圆环状构件，也能够准确地以规定截面形状成型的圆环状构件成型方法及圆环状构件成型装置。本发明的圆环状构件成型方法用于成型包括厚壁的内周部分（11a）和薄壁的外周部分（11b）的三角胶条（11），所述方法具备：使成型台（20）旋转，同时在成型台（20）上通过第一挤出机（30）经由具有与内周部分（11a）呈相同截面形状的开口的第一口模（31）挤出橡胶（R1），并使橡胶呈圆环状，由此成型内周部分（11a）的工序；和使成型台（20）旋转，同时在成型台（20）上通过第二挤出机（40）经由具有与外周部分（11b）呈相同截面形状的开口的第二口模（41）挤出橡胶（R2），并使橡胶呈圆环状，由此而成型外周部分（11b）的工序。
摘要（英）：

The object of the present invention is to provide a method and an apparatus for molding an annular member capable of accurately molding an annular member into a predetermined cross-sectional shape even if the annular member has a thick-walled inner peripheral part and a thin-walled outer peripheral part. The method for molding a bead filler (11) including a thick-walled inner peripheral part (11a) and a thin-walled outer peripheral part (11b), the method comprising the steps of extruding, into an annular shape, rubber (R1) by a first extruder (30) onto a molding table (20) through a first die (31) provided with an opening having the same cross-sectional shape as that of the inner peripheral part (11a) while the molding table (20) is rotated, and molding the inner peripheral part (11a); and extruding, into an annular shape, rubber by a second extruder (40) onto the molding table (20) through a second die (41) provided with an opening having the same cross-sectional shape as that of the outer peripheral part (11b) while the molding table (20) is rotated, and molding the outer peripheral part (11b).

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