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    • 5. 发明公开
    • 관재의 프레스 굽힘 가공 장치 및 방법
    • 用于压弯管材料的装置和方法
    • KR1020090104871A
    • 2009-10-06
    • KR1020097017338
    • 2007-10-16
    • 신닛테츠스미킨 카부시키카이샤
    • 미즈무라마사아끼구리야마유끼히사
    • B21D7/06B21D7/00
    • B21D7/06B21D7/066B21D9/04
    • A novel apparatus and method for press-bending a tube material, simultaneously achieving three features that are bending with a large bend radius not requiring a large-scale facility and a die, bending less likely to produce wrinkles and buckling inside a bend, and bending with high productivity. The press-bending apparatus bends a tube material at three points by a punch (12) and a set of rolls (13, 13). The punch (12) has a groove (12a) with a width greater than that of a circular tube (11). The set of rolls (13, 13) are supported by a base (14). The rolls (13, 13) are movable on the base (14) in the direction separating from each other while being in contact with the punch (12). The base (14) has a hollow (14a), and the punch (12) that descends and the circular tube (11) that is bent as the punch (12) descends are allowed to move in the hollow (14a) while the circular tube (11) is bent.
    • 一种用于压弯管材的新型装置和方法,同时实现了不需要大规模设备的大弯曲半径弯曲的三个特征和模具,弯曲不太可能在弯曲部内产生褶皱和弯曲,并且弯曲 生产力高。 压弯装置通过冲头(12)和一组辊(13,13)在三个点弯曲管材。 冲头(12)具有宽度大于圆管(11)的宽度的凹槽(12a)。 一组辊(13,13)由基座(14)支撑。 辊(13,13)可以在与冲头(12)接触的同时在彼此分离的方向上在基座(14)上移动。 基部(14)具有中空部(14a),并且随着冲头(12)下降而弯曲的下降的冲头(12)和弯曲的圆管(11)被允许在中空部(14a)中移动,同时圆 管(11)弯曲。