| 摘要 |
FIELD: polygraphy, printing on figures of rotation. SUBSTANCE: aim is to expand capabilities of centerless scheme of printing due to decrease of loading on offset rolls. Apparatus has continuous action conveyor with fixed on it uniformly spaced leads and located on both sides of conveyor operational branch and opposite to each other joints of printing with offset rolls. Offset rolls are mounted so as to be capable to move perpendicularly to conveyor axis and are kinematically linked to each other and with conveyor drive so, that they are turning in single direction and half of their operational surfaces rotation speeds difference is equal or exceeds speed of conveyor movement. EFFECT: expanded capabilities of centerless scheme of printing due to decrease of loading on offset rolls. |
