摘要:
The direct roving winder has a machine frame which carries at least one winding spindle for the production of one or more roving packages and a cross-winding device. An apparatus for contactless detection of the actual diameter of a roving package is also provided which has a laser sensor with a transmitter and a receiver for laser radiation in which the distance of the laser sensor from the package surface is ascertained by means of the radiation from the transmitter to the package surface and back to the receiver. The laser sensor can be mounted in stationary manner on the machine frame or on the displacement device. The laser sensor can be arranged in a housing with an opening for the passage of the laser beam, in which there is a free space between the laser sensor and the inside of the housing into which compressed gas is introduced which exits through the opening.