Patent ID: 8178015

Claim:
A device for melt-spinning and cooling of freshly extruded synthetic filaments to solidify the filaments having at least one spinning device for extruding a plurality of the filaments, comprising: a cooling shaft for solidification of the freshly extruded filaments disposed below the spinning device, the cooling shaft having at least on one inner side a first movable blower wall through which cool air is blown into the cooling shaft; wherein during operation the filaments are guided along the blower wall and at a distance there from and wherein the movable blower wall is held, relative to the spinning device, in one of several operating positions in alternation, wherein to change the operating position the blower wall is moved in either a direction towards the filaments, or in a direction away from the filaments; wherein the device further comprises a second movable blower wall positioned at an inner side of the cooling shaft opposite the first movable blower wall, wherein both the first and second movable blower walls are constructed and arranged to be held in several operating positions relative to the spinning device; wherein the cooling shaft includes an exhaust outlet having an exit cross section constructed and arranged to change size; and wherein the exhaust outlet includes a pivotable damming flap disposed below each of the blower walls, wherein the damming flaps are constructed and arranged to be displaced by a pivoting movement in a direction transverse to the filaments in order to select the size of the exit cross section of the exhaust outlet.