Wind-on device for workstations of two-for-one twisters and ply twisters

Wind-on device for workstations of a two-for-one twister machine or a ply twister machine comprising a take-up bobbin, a drive shaft extending in the longitudinal direction of the machine, a friction roller which is driven by the drive shaft and causes the take-up bobbin to make a rotational movement for winding of a traveling yarn thereon, a traversing yarn displacement device for delivering the yarn traversingly to the take-up bobbin to wind thereon in a cross-winding manner, and a driven advance roller positioned upstream of the friction roller relative to a path of yarn travel onto the take-up bobbin for looping of the traveling yarn about the advance roller for reducing tension in the yarn prior to winding on the take-up bobbin, characterised in that in addition to the friction roller (14, 15), the advance roller (8, 9) is also driven by the drive shaft (27, 28) and in that the advance roller (8, 9) is mounted on a support element (23, 24) and pivots together with the support element (23, 24) about a pivot axle selectively into an operating position or into a higher situated service position.