Spooling machine for continuously running fibers

A spooling machine for continuously running fibers, said spooling machine comprising

• a housing (1) with a horizontally extending support arm (2) connected with an upper portion of the housing (1);
• a plurality of spindles (7,8) for fixing respective bobbins (11) for the continuously running fibers;
• a changing device (14) including a plurality of changing units (15,16,17) corresponding to the number of fibers, said changing device being arranged on said support arm (2);
• a rotatable spindle revolver (4) on which said spindles are rotatably mounted;
• respective variable speed motors (6,9,18) for rotatably driving the spindles (7,8), the spindle revolver (4) and the changing device (14), said variable speed motors (9,18) for the spindles and the changing device having respective integrated frequency converters (9a,18a);
• and
• a control unit (20) mounted on an end of said support arm (2), said control unit (20) comprising means for controlling momentary frequencies of said respective integrated frequency converters and spooling machine operations, so that said frequency converters are separate from said control unit in order to guarantee sufficient cooling.