| 摘要 |
PURPOSE:To transfer a workpiece on a circular table in a required circumferential direction on a pitch-by-pitch basis, by turning the table clockwise or unclockwise in a desired range of angle while changing the speed of the table to be low or high. CONSTITUTION:When both motors 17, 27 are continuously run at required speeds in the same direction with respective levels of motive power, the driving member d2 of a high-speed mechanism H at rest in the state of non-driving throughout the state of driving of a driving member d1 which is based on the connection of a low-speed mechanism L, so that the former driving member d2 races following the turning of a table 1. When the driving member d2 is in the state of driving, the other driving member d1 races following the motion of the table 1. Both the driving members d1, d2 thus perform driving and non-driving in turns to alternately continue slow and rapid crank actions to move the table 1 in each direction as it is pulled. |
