DETENTION DEVICE OF A MECHANINE FOR A THREADING MACHINE THREAD CORE AND A THREADING MACHINE OF THREADING THREAD THAT INCLUDES SUCH DEVICE DETENTION DEVICE

摘要

Roving stop device for a core yarn ring-spinning machine, comprising a stop element arranged to be able to act, in an active position, on a pair of roving supply rollers to stop the supply of roving when breakage of a continuous filament occurs, and a mechanism to activate the stop element when said breakage occurs, and it is characterized in that said mechanism comprises; first activating means for displacing the stop element towards the active position upon breakage of a first continuous filament intended to be fed to a core yarn, and second activating means for displacing the stop element towards the active position upon breakage of a second continuous filament intended to be fed to said same core yarn.