| 摘要 |
<p>A washing device for an offset printing press has a blanket cylinder, the washing device being adjustable with respect to the blanket cylinder and including a rotary washing roller having a soft covering and being in frictional driving engagement with the blanket cylinder, a doctor roller having a surface located in engagement with the washing roller, a distributor roller having a firm surface engaging the soft covering of the washing roller at a location upstream of the doctor roller in the rotary direction of the washing roller, means for feeding and controllably applying fresh washing solution to the distributor roller, a collecting vessel located below the doctor roller, and a doctor blade operatively connected with the doctor roller for guiding therefrom into the collecting vessel ink washed off the blanket cylinder with the wash solution, the improvement therein and further comprises a second washing roller in frictional driving engagement with the blanket cylinder, both of the washing rollers being traversible relative to the blanket cylinder and being additionally drivable by the doctor roller, both the washing rollers being disconnectible respectively from at least one of the blanket cylinder and the doctor roller.</p> |
