Device, • designed to be integrated into a nonwoven winder in such a manner that the nonwoven winder is able to separate a nonwoven, while it is being wound onto a first winding shaft, at a predetermined position by means of a separating section of the device, and • having - the separating section having a cutting section which extends at least over a width of the nonwoven to be separated and is arranged stationarily with respect to an extent of the axis of rotation of a contact roll of the nonwoven winder, - a holding section (130, 140) which is arranged so as to be rotatable about an axis which coincides with the axis of rotation of the contact roll, • characterised by - an actuating section (102, 104, 105), adapted · to accommodate the cutting section, in a first state, in the holding section (130, 140) in such a manner that the cutting section is prevented from coming into contact with the nonwoven, and · to move the cutting section, between the first state and a second state, substantially transverse to the axis of rotation of the holding section (130, 140) by pressing the cutting section against a side of the nonwoven that faces the contact roll in such a manner that the nonwoven is separated by means of the cutting section, and - a sensor system, adapted to detect the presence of at least one of the states of the cutting section. • designed to be integrated into a nonwoven winder in such a manner that the nonwoven winder is able to separate a nonwoven, while it is being wound onto a first winding shaft, at a predetermined position by means of a separating section of the device, and • having - the separating section having a cutting section which extends at least over a width of the nonwoven to be separated and is arranged stationarily with respect to an extent of the axis of rotation of a contact roll of the nonwoven winder, - a holding section (130, 140) which is arranged so as to be rotatable about an axis which coincides with the axis of rotation of the contact roll, - the separating section having a cutting section which extends at least over a width of the nonwoven to be separated and is arranged stationarily with respect to an extent of the axis of rotation of a contact roll of the nonwoven winder, extends at least over a width of the nonwoven to be separated and is arranged stationarily with respect to an extent of the axis of rotation of a contact roll of the nonwoven winder, - a holding section (130, 140) which is arranged so as to be rotatable about an axis which coincides with the axis of rotation of the contact roll, • characterised by - an actuating section (102, 104, 105), adapted · to accommodate the cutting section, in a first state, in the holding section (130, 140) in such a manner that the cutting section is prevented from coming into contact with the nonwoven, and · to move the cutting section, between the first state and a second state, substantially transverse to the axis of rotation of the holding section (130, 140) by pressing the cutting section against a side of the nonwoven that faces the contact roll in such a manner that the nonwoven is separated by means of the cutting section, and - a sensor system, adapted to detect the presence of at least one of the states of the cutting section. - an actuating section (102, 104, 105), adapted · to accommodate the cutting section, in a first state, in the holding section (130, 140) in such a manner that the cutting section is prevented from coming into contact with the nonwoven, and · to move the cutting section, between the first state and a second state, substantially transverse to the axis of rotation of the holding section (130, 140) by pressing the cutting section against a side of the nonwoven that faces the contact roll in such a manner that the nonwoven is separated by means of the cutting section, and · to accommodate the cutting section, in a first state, in the holding section (130, 140) in such a manner that the cutting section is prevented from coming into contact with the nonwoven, and · to move the cutting section, between the first state and a second state, substantially transverse to the axis of rotation of the holding section (130, 140) by pressing the cutting section against a side of the nonwoven that faces the contact roll in such a manner that the nonwoven is separated by means of the cutting section, and - a sensor system, adapted to detect the presence of at least one of the states of the cutting section.