| 摘要 |
<p>It is an object of this invention to provide a rider roller assembly which is capable of having as many rider roll wheels as possible disposed at a generic rider roller assembly wherein the reaction accuracy to a given load program depending on the diameter of the wound roll is improved. These objects are achieved with a rider roller assembly comprising a beam (16) being translationally movable substantially vertically relative to the wound roll depending on the diameter thereof; driving means for moving the beam; a rider roller including a plurality of rider roll wheels, which are mounted to the beam (16) being individually pivotable and are capable to engage the wound roll along a contact line (nip line) (20); supporting arms (17', 17'', ...), articulately linked with the beam for supporting and individually pivoting the rider roll wheels (15', 15'', ...) on a swiveling axis (18) in relation to the beam (16); means for fluidly, preferably hydraulically, loading the rider roll wheels (15', 15'', ...) against the at least one wound roll; means for fluidly, preferably pneumatically compensating or lifting the rider roll wheels (15', 15'', ...) from the at the least one wound roll counter-balancing the weight of the rider roll wheels and the supporting arms, the means for loading and for lifting or compensating each of the rider roll wheels being combined in double-way acting piston/cylinder units (23', 23'', ...), each with a single-sided piston rod (22', 22'', ...).</p> |
