Device for processing and rounding of concrete - and steel concrete pipes

摘要

Pipes made of concrete and reinforced concrete are predominantly produced from earth-moist concrete and is immediately removed. In this case, it is frequently leads to a slight deformation of the upper region of the pipe, the spigot, from a round form in an approximately elliptical. Dollars a at a later joining together of the tubes is between the pipe region and the sockets - inner side, a seal is mounted, a deformed spigot end results in non-uniform sleeves gap and a possible explosion of the sleeve in the case of too small a gap or a leak in the case of excessively large gap. Dollars a by the commonly used process, in the case of a machining of the spigot in the region of the seal, an untrue shape, is eliminated and a uniform diameter. For this purpose, on the unit tool, in this milling cutter (6), by means of a hinged lever (4) of three rollers (5) with the compounds (3) likewise arranged in an articulated manner. These rollers are approximately in a 90 degrees to the opposite point of the milling cutter, rollers during machining in the tube and have the effect that the line a - b i neinem constant distance to the milling cutter remains. As a result, a round spigot end generates.