| 摘要 |
PURPOSE:To adjust the supply amount of printing ink, by finely adjusting the advance/retraction quantity of an ink key by the cam like operation of an extrusion idle wheel displacing by the shaking of a link due to the advance/ retraction movement of a shaft and the fulcrum movement of the link due to the advance/retraction movement of a fulcrum holder. CONSTITUTION:The leading end of a driver is engaged with the driver groove 31 provided to each zero point regulating screw shaft 25 to rotate the zero point regulating screw shaft 25. By this method, all of ink keys 7 are brought to a full-closed state, that is, to a zero point. When each electromagnetic clutch unit 34 is set to a separated state, a worm driving shaft 49 is rotated to bring the electromagnetic clutch unit 34 to an operating state on the electromotor side thereof. Subsequently, each electromagnetic clutch unit 34 corresponding to each of the ink keys 7 is brought to an engaging state only for the time proportional to each data. By this operation, each electromagnetic clutch unit 34 is rotated on the follower side thereof for the same time period to finish the adjustment of an ink supply amount. |
