| 摘要 |
PURPOSE:To make the title roll adaptable to high speed rotation by embedding a balance adjusting wt. in each flange on the inner surface side of said flange. CONSTITUTION:Taper holes 3 are opened to the inward flanges 2, 2 fixed to both end parts of a cylinder 1 in the state in contact with the annular step parts 4, 4 provided to the inner surfaces of said end parts and key grooves 5 are provided to one places of the peripheral surfaces thereof and the stainless steel keys 13 provided to the tapered insert parts 12 at the leading ends of roll rotating shafts 11 are inserted in the key grooves 5. Herein, an aluminum extruded pipe is used as the cylinder 1 and cut to remove the effect of warpage, the deviation of a diameter or non-uniformity of a wall thickness and high accuracy is achieved with respect to the cylinder 1. Subsequently, in order to correct the unbalance due to a rotation stop key 13, balance adjusting wts. 6 are embedded in the flanges on the inner surface side thereof at the positions on the side opposite to the key grooves 5 of the flanges 2 of a printing roll 10 to be mounted by screws or welding. Therefore, even when the roll 10 is rotated at a high speed, no lateral vibration, is generated. |
