SPINDLE FOR DRAW-TWISTING MACHINES

• Main Authors: SCHEURER P,CH, ANGST K,CH
• Format: Patent
• Language: English
• Published: 30.10.1973
• Subjects: NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; SPINNING OR TWISTING; TEXTILES

A spindle, particularly for draw-twisting machines, designed for taking-up a detachable underwinding crown which can be placed on the spindle so that no rotation relative to the spindle occurs. The underwinding crown is provided with vertically arranged fingers or rods forming envelope parts for taking up a thread during the underwinding phase and with an upper limiting ring surrounding a tube of a bobbin placed on the spindle. The outside diameter of the ring exceeds the envelope parts. The spindle is designed for taking-up the upper limiting ring of the underwinding crown which is provided with elastic snap-on holding means, and is further provided with spreading means for spreading the elastically deformable envelope parts. There is also provided a lower limiting ring the outside diameter of which exceeds the envelope parts and which contains at least one recess for taking-up the free lower ends of the fingers or rods forming the envelope parts.