Apparatus and process for controlling the work phases of a cutter device movable on continuously extruded tubes

摘要

The present invention relates to an apparatus and to a process for controlling the work phases of a cutter device movable on continuously extruded tubes and has operating means designed to detect the relative position of the cutter device with respect to the tube, as well as to set in motion means for displacing the said cutter device between constantly variable limit positions while the process continuously detects the displacements of a tube with respect to the cutter device and causes the cutter to undergo measured displacement on the tube and periodically varies the length of the tubes to be cut.