| 摘要 |
A printing press damping system (10) has a set of rollers (12,1,15,16) to deliver a damping fluid (14) from a trough (11) to a plate cylinder (20) of a printing press. The rollers comprise a fountain roller (12) which is rotatable within the trough to pick up damping fluid (14) which is then transferred to a feed roller (1) then to a distributor roller (15) and finally a damping roller (16) which delivers the damping fluid (14) onto the plate cylinder (20). The fountain roller (12) and distributor roller (15) each have their own drive means. Both the feed roller (1) and damping roller (16) are rotated by frictional engagement with the distributor roller (15). The feed roller (1) has a resiliently deformable outer circumferential surface with a plurality of spaced-apart radial slots which facilitates good grip between the feed roller (1) and the distributor roller (15) and minimises swelling in the feed roller (1) when it heats up in use.
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