DRAFTING ASSEMBLY FOR A RING SPINNING MACHINE AND DRAFTING KITS FOR DRAFTING FIBRES ON A RING SPINNING MACHINE

摘要

A drafting assembly (1) for a ring spinning machine, characterised in that it includes; a first drafting roller (4) coupled to a removable roller apron support (2) in a forward position, a second drafting roller (5) coupled to said removable roller apron support (2) in a backward position with respect to said first drafting roller (4), and an apron profile (6) attached to said removable roller apron support (2) for at least one drafting apron (10a, 10b, 18) to be wrapped around said first drafting roller and/or said second drafting roller at a spinning position S1,S2, wherein said drafting assembly includes a the drafting frame (7) of the ring spinning machine configured to either raise the working position of an existing front bottom drafting roller (14) or to lower the working position of the existing middle and back bottom drafting rollers (4, 5).