Device for influencing the volumetric flow of extruded plastically deformable material

A device for influencing the volume flow of extruded plastically deformable material, which is fed to an outlet die during the additive manufacturing of components, comprising a flange, which is arranged between an extrusion unit and an outlet die and connected to the extrusion unit and the outlet die, wherein

• a channel that, proceeding from the extrusion unit, is formed up to the outlet die is introduced into the flange;
• and
• a piston is mounted in the flange so as to rotate perpendicularly to a longitudinal axis of the channel and is guided the channel;
• and
• a borehole is formed in the piston in the region of the channel, the borehole opening into a bypass channel that runs through the piston to a bypass die;
• and
• in addition to the borehole, at least one groove is formed in a region of the channel on an outer lateral face of the piston, which is arranged in a different angular range than the borehole or located around the borehole, so that
• extruded plastically deformable material can be fed, as a function of angular positions of the piston, through the at least one groove in the direction of the outlet die
• or through the borehole and the bypass channel out of the bypass die.