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    • 2. 发明授权
    • Rotary punch
    • 旋转冲头
    • US5937719A
    • 1999-08-17
    • US671712
    • 1996-06-27
    • Kurt E. DavisWilliam E. Brickey
    • Kurt E. DavisWilliam E. Brickey
    • B26F1/04B26F1/10B26F1/14B23D25/12B26D1/62
    • B26F1/14B26F1/04B26F1/10Y10T83/4711Y10T83/4812Y10T83/4836Y10T83/9389Y10T83/9464
    • A rotary perforation apparatus for perforating sheet material. The apparatus includes a frame, a die holder mounted on the frame for rotation about a first axis, at least one die mounted on the die holder, a punch carrier mounted on the frame for rotation about a second axis generally parallel to the first axis, and at least one punch mounted on the punch carrier. The punch is movable in a generally radial direction with respect to the second axis. The apparatus also includes a drive mechanism for rotating at least one of the die holder and the punch carrier about its respective axis to effect relative rotation between the die holder and the punch carrier. The rotation is synchronized so the punch on the punch carrier is intermittently cooperable with the die on the die holder for perforating sheet material fed between the die holder and the punch carrier. A stop assembly mounted on the frame is intermittently engageable with the punch to hold the punch against inward radial movement toward the second axis when the punch is cooperating with the die to perforate the sheet material.
    • 一种用于穿孔片材的旋转穿孔装置。 该装置包括框架,安装在框架上用于围绕第一轴线旋转的模具座,安装在模具座上的至少一个模具,安装在框架上以用于围绕大致平行于第一轴线的第二轴线旋转的冲压架, 以及安装在冲头托架上的至少一个冲头。 冲头可相对于第二轴线在大致径向方向上移动。 该装置还包括驱动机构,用于围绕其相应的轴线旋转模具保持器和冲压支架中的至少一个,以实现模座和冲压支架之间的相对旋转。 旋转是同步的,因此冲头托架上的冲头与模座上的模具间歇地配合,用于在模具夹持器和冲头托架之间输送片材。 安装在框架上的止动组件与冲头间歇地接合,以在冲头与模具配合以对片材进行穿孔时将冲头保持抵抗朝向第二轴线的向内径向运动。
    • 4. 发明授权
    • Quick release rotary punch
    • 快速旋转冲头
    • US4949449A
    • 1990-08-21
    • US315335
    • 1989-02-23
    • John S. Wilson
    • John S. Wilson
    • B21D28/36B26D7/26B26F1/14
    • B26D7/2614B21D28/36B26F1/14Y10T29/4973Y10T29/49822Y10T83/4836Y10T83/9389Y10T83/9461Y10T83/9464
    • A rotary punch including a punch wheel rotatable on a central axis, the wheel having an end face lying in a radial plane of the wheel and an outer generally cylindric rim surface extending generally axially of the wheel. A plurality of radial bores in the wheel extend generally radially inwardly from the rim surface at intervals spaced circumferentially of the wheel, and a corresponding plurality of axial bores in the wheel extend generally axially inwardly from said end face of the wheel intersecting the radial bores generally at right angles. A plurality of generally cylindric punch elements are inserted in the radial bores, each punch element having a circumferential groove. A plurality of retainer pins in the axial bores may be moved axially between an extended position in which each retainer pin extends into a corresponding radial bore and is received in the circumferential groove in a respective punch element for holding the punch element in fixed radial position in its radial bore, and a retracted position in which the retainer pin is clear of the groove for enabling removal of the punch element from the radial bore. A coil spring biases each retainer pin toward its extended position. A tool is provided to pry any one of the retainer pins for moving it against the bias of the spring from its extended position to its retracted position to permit removal of a respective punch element from the wheel.
    • 一种旋转冲头,其包括可在中心轴线上旋转的打孔轮,所述轮子具有位于所述车轮的径向平面中的端面和大致圆柱形的外表面,所述轮廓表面大致沿所述车轮的轴向延伸。 轮中的多个径向孔基本上沿周向间隔地以轮缘表面径向向内延伸,并且轮中相应的多个轴向孔基本上从所述轮的与所述径向孔相交的端面轴向向内延伸, 直角 多个大致圆筒形的冲头元件插入到径向孔中,每个冲头元件具有圆周凹槽。 轴向孔中的多个保持销可以在延伸位置之间轴向移动,其中每个保持销延伸到相应的径向孔中,并且在相应的冲头元件中容纳在周向槽中,用于将冲压元件保持在固定的径向位置 其径向孔以及缩回位置,在该位置中,保持销从槽中脱离,以使冲头元件能够从径向孔中移除。 螺旋弹簧将每个固定销朝向其延伸位置偏置。 提供了一种工具,用于撬动任何一个保持销,用于将其抵抗弹簧的偏压从其延伸位置移动到其缩回位置,以允许从轮移除相应的冲头元件。