摘要:
The invention relates to a creel loading and relieving device for a winding device of a textile machine producing crosswound bobbins in order to adjust the contact pressure of a take-up bobbin mounted in a creel on a driving roll. Said creel loading and relieving device comprises a creel that is pivotally mounted via a creel shaft and a force applying means which grips the creel and is adjustable via a positioning element. The inventive creel loading and relieving device (30) is provided with an actuator (33) that can be positioned by means of an electromotive drive (40) while a force applying means (29) which impinges upon the creel (9) is disposed on said actuator (33). The force applying means is configured as a pneumatic spring (29) and is hinged to a first lever arm (25) that is connected to a creel yoke (24). The loading or relieving moment to be applied to the creel (9) by the pneumatic spring (29) can be adjusted with precision by positioning the actuator (33) accordingly.
摘要:
The invention relates to drive rollers on a textile machine producing cross-wound bobbins, for the frictional drive of a cross-wound bobbin, mounted to rotate in a spool frame on a spooling device. According to the invention, the outer circumference (21) of the drive roller (11) is embodied by a thin-walled, profiled metal tube (19), formed by high-pressure internal forming.
摘要:
The aim of the invention is to propose a method for open-end rotor spinning, in which the formation of covered fibres, in particular, the so-called fibre ring is, at least significantly, reduced. According to the invention, the fibre stream emanating from a fibre guide channel comprises a directional component, in the direction of the rotor, as the yarn shank (3), stretching from the outlet jet to the rotor flute, at least in the vicinity of the rotor flute (1), bends against the rotation direction of the rotor. The production of this directed bend in the yarn shank (3) occurs during the commencement of the spinning process.