| 摘要 |
A multi-color printing apparatus for automatically screen printing workpieces in diverse colors has a plurality of printing units (112) spaced about a central support (18). A number of radially extending support arms (14) cantilevered from the central support carry the workpieces at their free ends for movement between the printing units (112). After the support has been indexed to an approximate final position a braking means is engaged to prevent rotation of the support arms (14) and a locking means operated to bring the arms into registered positions for the duration of the printing operation, after which the brake and locking means are disengaged, allowing the support arms to rotate to other printing units. |
