| 摘要 |
An apparatus for taking folded flat blanks out of a magazine and transferring them to a conveyor apparatus of a box-making machine is disposed between the vertically oriented magazine and the conveyor apparatus extending horizontally beneath it at some distance therefrom. The apparatus has three suction cups offset by 120 DEG , on a star-shaped rotor which travel over a self-contained cycloid path (C) having four reversal points (F, G, H, I) and concave arcs between them. This cycloid path is generated by a revolving crank that rotatably supports the rotor with an eccentricity (E) and by a planetary gear associated with the crank, the sun gear of which is disposed coaxially with the axis of rotation of the crank, and the planet gear of which is firmly connected coaxially to the rotor; an intermediate gear is incorporated between the sun gear and the planet gear. The gear ratio of the planetary gear is 4:3 between the sun gear and the planet gear, and the spacing (D) of the suction cups from the shaft of the rotor is approximately three times the eccentricity of the crank. For erecting the foldable blank during the transfer, pressing fingers are associated with the suction cups and are pivoted by a control disk supported on the shaft of the rotor.
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