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    • 6. 发明授权
    • Paddle wheel distributor system for printed products
    • 用于印刷产品的桨轮分配器系统
    • US4971303A
    • 1990-11-20
    • US340851
    • 1989-04-20
    • Klaus-Ulrich LangeReinhard Mayr
    • Klaus-Ulrich LangeReinhard Mayr
    • B41F13/60B65H29/40B65H29/68
    • B65H29/40B65H29/68B65H2301/17B65H2511/13
    • To provide for gentle braking by braking fingers (12) located in axial slots between paddle wheel vanes or blades (9, 10) of paddle wheels (8), the fingers have an outer contour which is shaped and dimensioned, at least in the inlet region of gaps (11) for the printed product forming an intersection angle (.alpha.) defined by the axial projection between the contour of the braking fingers and the adjacent inner surface (91) of a vane or blade to continuously increase during rotation of the paddle wheel vanes or disks, to thereby define effective gaps of continuously decreasing width during rotation of the paddle wheel vanes. Preferably, the position of the fingers is adjustable along a predetermined direction (X) by an electrical closed loop positioning system (13 -20, 43), receiving input signals (44, 45) representative of thickness of products and machine speed and, preferably, also emergency control signals (48) to control the position of the fingers with respect to the vanes or blades. Emergency control signals cause withdrawal of the blades to a maximum effective gap position, for example upon tearing of supply belts; increased braking by the fingers, with a narrowed gap, at different axial positions can be used to overcome skew of incoming or delivered products.
    • 为了通过制动位于桨轮叶片或叶轮(8)的叶轮(9,10)之间的轴向槽中的手指(12)来提供轻微制动,所述指状物具有至少在入口中的形状和尺寸的外轮廓 所述印刷产品的间隙区域(11)形成由所述制动爪的轮廓和叶片或叶片的相邻内表面(91)之间的轴向突起限定的交叉角(α),以在桨叶的旋转期间连续增加 轮叶或盘,从而限定在叶轮叶轮旋转期间连续减小宽度的有效间隙。 优选地,手指的位置通过电闭环定位系统(13-20,43)沿着预定方向(X)可调节,接收代表产品厚度和机器速度的输入信号(44,45),并且优选地 ,还有用于控制手指相对于叶片或叶片的位置的应急控制信号(48)。 紧急控制信号导致叶片退出到最大有效间隙位置,例如在撕裂供应带时; 可以使用在不同轴向位置处具有狭窄间隙的手指的增加的制动来克服进入或递送的产品的倾斜。