An erasing and cleaning apparatus for cylinders an erasing and cleaning apparatus
for cylindrical surfaces in a printing press includes a positioning unit with side
walls and a cleaning cloth transport device arranged in said positioning unit and
having a clean cloth roll, a wash roll, and a dirty cloth roll. An intermittently
operated pneumatic or hydraulic linear drive having a stroke movement is connected
to said cleaning cloth transport device for advancing a cleaning cloth off of the
clean cloth roll, over the wash roll, and onto the dirty cloth roll. At least one
of the sidewalls includes bearing elements for the clean cloth roll, the wash roll,
and the dirty cloth roll. A gearwheel is connected to one of the bearing elements
by one of a freewheeling and overrunning clutch for converting the stroke movement
of the drive into a rotary movement. The apparatus also includes a cam control
system for controlling a stroke limitation in response to a winding radii of the
cleaning cloth on the dirty cloth roll and an integrated braking device generating
a braking force for counteracting a pulling direction of said intermittently operated
drive, the braking force also being adjustable in response to the winding radii
of the cleaning cloth on the dirty cloth roll.