Maschinenfabrik Rieter Ag

Rieter Ingolstadt Spinnereimaschinenbau Ag

Beat N&auml;f

J&uuml;rg Faas

Lars Weisigk

Christian M&uuml;ller

Christian Sauter

Walter Slavik

Viktor Pietrini

Armin Brunner

Olivier W&uuml;st

Manfred Wagner

Christian Grieshammer

Theodore G&ouml;tz Gresser

Theodor Gresser G&ouml;tz

A machine ( K, ) for processing textile material with at least one sliver-forming device ( ) and a coiler ( KA) is provided with a drafting arrangement ( ) in such a way that at least the coiler ( KA) is formed by a subassembly of a draw frame ( S) for doubling and drafting slivers ( F, ), with the subassembly ( S) also comprising the drafting arrangement ( ) of the draw frame.

Machine with a drafting arrangement for processing textile material

The object of the invention is to facilitate the entry of a fiber band into a drawing machine. The invention is comprised of a fiber band insertion apparatus having a combination condenser and guide device with a longitudinal slot extending over its entire length. The guide device is followed by roll pair, which, at least during the laying in of the fiber band, has an accessible entry opening. This opening is at least partially formed by a recess in at least one of the opposed sides of the roll pair. The recess is separated by a flange on one of the circumferential rim surfaces which are mutually profiled to provide space for a compression line for the fiber band. The entry opening of the roll pair and/or feeders, as well as the entry slot of the condenser are, essentially, arranged in a common plane. With the aid of the invented apparatus, the fiber band is laid into the band entry device by a movement transverse to the normal transport direction of the fiber band when the drawing machine is running.

Apparatus for the entry of a fiber band into a stretch machine

The present invention concerns a drafting system (,) with a drive (M,) provided with a regulating device (M,) for levelling out mass variations in a fiber mass (,) supplied to the drafting system by a supply source (,). The mass variations are detected by at least one measuring sensor (,) coordinated to the drafting system and the corresponding signals are transmitted to a control unit (S). A further device (,) may be coordinated to the drafting system (,) which is suitable for detecting differences between the delivery speed of the supply source (,) and the intake speed of the drafting system (,) and apply it for influencing the base rotational speed of the drafting system or to detect long term mass variations from a predetermined desired value in which arrangement these mass deviations detected are applied for influencing the base rotational speed of the drafting system.

Regulated drawing frame

The main drum diameter (D) of a card for short staple carding is reduced. The working width preferentially is enlarged. The main drum (,) can be made from fiber reinforced synthetic material. Notwithstanding its smaller diameter, the new main drum is operated at the same or a somewhat higher circumferential speed (in comparison to a conventional card).

High performance card

A stretched fiber band is deposited in a can, located in the filling station of a can exchanger of a draw frame, by means of a turntable. The rotational axis of the turntable exhibits an equal to or less than distance from the rotational axis of the can exchanger than the distance from the center point of the can found in the filling station to the rotational axis of the exchanger. Upon the substitution of the filled can by an empty can held in a ready-state position, the operation of the can exchanger on the rotation of the turntable is designed in such a manner, that the fiber band is deposited into the full can exiting the filling station, until this can leaves the zone of the turntable. The fiber band is then deposited into the empty can which has been brought into the filling station II, as soon as this empty can reaches the zone of the turntable. To enable this procedure, the empty can to be delivered to the filling station is temporarily moved with increased speed, and the spatial interval between the empty can to be delivered to the filling station and the full can which is leaving the filling station is reduced.

Process and apparatus for stretching fiber band and storage of same

Growing community of inventors

Jona, Switzerland

Beat Näf

Growing community of inventors

Jona, Switzerland

Beat N&auml;f

Beat Näf