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    • 1. 发明授权
    • Press forming device
    • 压制成型装置
    • US5634367A
    • 1997-06-03
    • US395928
    • 1995-02-28
    • Toyonobu YamadaTadasi MorisimaNobutake Aikura
    • Toyonobu YamadaTadasi MorisimaNobutake Aikura
    • B21D22/02B21D15/02B21D37/02B21D51/12H02K15/14B21D51/16
    • B30B7/04B21D15/02
    • A press forming device for forming a plurality of inwardly directed projections on a circumferential wall of a tubular article to be formed. The press forming device includes a lower die holder adapted to be mounted on a lower base of a press machine, and a die fixed on the lower die holder. The die has a plurality of inside forming parts on a circumferential surface of the die, each for forming one of the projections, respectively. The press forming device further includes a plurality of punches mounted on the lower die holder around an outer circumference of the die, each being arranged to be capable of being moved towards or away from the die, and each having an outside forming part in a position facing one of the inside forming parts for forming one of the projections, respectively. The press forming device also includes an upper die holder adapted to be mounted on an upper raising and lowering base of the press machine and a plurality of pressing members of wedge shape mounted on the upper die holder. Each of the pressing members is mounted at a position above one of the punches for moving one of the punches in a direction towards the die with lowering the raising and lowering base, to thereby press the tubular article between one of the inside forming parts of the die and one of the outside forming parts of the punches, respectively.
    • 一种压制成形装置,用于在要形成的管状物品的周壁上形成多个向内的突起。 压制成形装置包括适于安装在压力机的下基座上的下模夹持器和固定在下模夹持器上的模具。 模具在模具的圆周表面上具有多个内部形成部分,每个用于分别形成一个突出部。 冲压成形装置还包括多个冲头,其围绕模具的外周安装在下模托架上,每个冲头能够朝向或远离模具移动,并且每个具有外部形成部件位于模具的外周 面对其中一个内部形成部分,分别形成一个突起。 冲压成形装置还包括适于安装在压力机的上升下降基座上的上模夹持器和安装在上模夹座上的多个楔形加压构件。 每个按压构件安装在一个冲头上方的位置上,用于使一个冲头沿着朝向模具的方向移动,同时降低升高和降低底座,从而将管状物品压在其中一个内部形成部分之间 模具和冲头的外部形成部件之一。