Press roller for the prodn of concrete pipes has profiled grooves at the outer mantle for reduced wear and lower energy consumption

摘要

The appts. to produce a concrete pipe has a press tool with rotation and axial adjustment along the longitudinal axis of a pipe mold. It has at least one press roller, with an axis parallel to the longitudinal axis of the pipe mold, in a rotating mounting radially outwards at the roller head. The outer mantle (24) of the press roller is profiled with grooves (22), parallel to the roller axis, or in a spiral around the roller mantle. In the rolling direction, the leading flank of the profiled grooves (22) is steep and the trailing flank is flat.