Photoelectrophoretic web machine servo drive system
    11.
    发明授权
    Photoelectrophoretic web machine servo drive system 失效
    光电网幅机伺服驱动系统

    公开(公告)号:US3991992A

    公开(公告)日:1976-11-16

    申请号:US571189

    申请日:1975-04-24

    CPC分类号: G03G17/04

    摘要: A web drive system consisting of two independent speed controlled servos used to drive at least two webs is provided for use in a photoelectrophoretic web machine. The servo drive systems cooperate in the transporting of the webs to eliminate speed differential tensions between the two webs held together by friction and electrical tacking force. The first servo system may be bi-polar controlled. The second servo system may be uni-polar controlled and switched between speed and torque control modes. When the webs are held apart, the second servo system will be in speed control and whenever the webs are in contact, the second servo system is switched to the torque control mode.

    摘要翻译: 提供了用于驱动至少两个幅材的由两个独立的速度控制的伺服机构组成的卷筒纸驱动系统,用于光电网幅机。 伺服驱动系统配合输送腹板,以消除通过摩擦和电气紧固力保持在一起的两个腹板之间的速度差动张力。 第一伺服系统可以是双极控制的。 第二伺服系统可以单向控制,并在速度和转矩控制模式之间切换。 当腹板被分开时,第二伺服系统将处于速度控制中,并且每当腹板接触时,第二伺服系统被切换到转矩控制模式。