Method for producing a twisted yarn in a combined spinning and twisting process

A method for manufacturing a twisted yarn by a combined spinning and twisting process;

• said method comprising the steps of:
• a) supporting at least two open end spinning rotors in a common rotor having a hollow feed axle;
• b) feeding fiber material to be spun through said hollow feed axle and feed tubes connected to the hollow feed axle into said at least two open end spinning rotors and producing in said at least two open end spinning rotors individual spun yarns;
• c) guiding the spun yarns together to a first centering location positioned coaxially to an axis of a double twisting device above the double twisting machine and below the at least two open end spinning rotors to subject the individual spun yarns in a first yarn feeding direction to a first twist, whereby a yarn balloon is formed;
• d) subsequently guiding the spun yarns to a second centering location, positioned coaxially to the axis of the double twisting device below said first centering location, and through said second centering location into an interior of the yarn balloon to subject the spun yarns in a second yarn feeding direction, opposite said first yarn feeding direction, to a second twist;
• e) winding the spun yarns onto a rotating bobbin positioned in the interior of the yarn balloon.