| 摘要 |
A printing cylinder comprising a hollow polyurethane cylinder having a plurality of ribs extending radially inwardly from its internal surface. A modified printing cylinder wherein the radially extending ribs are embedded in metal rings at opposite ends thereof. A printing cylinder mounting construction including a shaft, a pair of spaced hubs on the shaft, a hollow printing cylinder having a plurality of inwardly radially extending ribs, enlarged slots in one of the hubs which permits the ribs to pass over that hub, facing tapered surfaces on the hubs, mating tapered surfaces at the ends of the ribs, a rotary adjustment on the hub having the enlarged slots therein for permitting that hub to be rotated to place the inclined surfaces on the ribs and the inclined surfaces on that hub into contiguous relationship, and a screw adjustment for axially moving that hub to wedge the ribs onto the inclined surfaces of the spaced hubs. A printing cylinder mounting construction including a shaft with spaced hubs, a hollow printing cylinder having a plurality of inwardly radially extending ribs mounting in metal rings on their inner ends, slots in both of the rings, keys in one of the hubs to permit the sleeve to slide over that hub when the slots in the keys are in alignment, and the other hub being rotatable and having gibs thereon spaced from a shoulder for clamping the metal ring on that hub after the hub has been rotated out of alignment with the slots in the metal ring which is located thereon.
|
