Rieter Machine Works, Ltd.

Maschinenfabrik Rieter Ag

Viktor Pietrini

Walter Slavik

Gerhard Mandl

Giancarlo Mondini

J&uuml;rg Faas

Kurt Weber

Oliver Wuest

Rudolf Wildbolz

Beat N&auml;f

Christian M&uuml;ller

Hanspeter Meile

Willi Schlaepfer

Thomas Stolz

Roland Fischer

Felix Keller

Thomas Sigrist

Gerd Gschliesser

Ulrich Burgermeister

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 invention relates to an apparatus for forming a sliver with a first regulated drafting arrangement (10) with several pairs of rollers (11, 12, 14) for the regulated drafting of the fibre mass (8) supplied to the drafting arrangement, with the fibre fleece (28) delivered by the drafting arrangement being joined and supplied to a measuring member (32) from where the measured fibre material is thereafter supplied to a second drafting arrangement (40) and with the autoleveller device (35, 52, 21) of the first drafting arrangement (10) intervening in a regulating manner in the drive of the first drafting arrangement (40) in order to compensate fluctuations in mass on the basis of the signals issued by the measuring member (32) by including a predetermined setpoint value. Various regulating and control devices are known in practice in order to obtain a high-quality sliver. In order to detect and compensate short-wave and long-wave fluctuations in mass in a simple way an apparatus is proposed, with the second drafting arrangement (40) being provided with a control device (35, 50, 48) for compensating short-wave fluctuations in mass, which device intervenes in a controlling manner in the drive of the second drafting arrangement (40) on the basis of the signals issued by the measuring member (32).

Combing machine with an autoleveller drafting arrangement

The combing machine has a row of combing heads which are allocated with a drive shaft extending parallel to the longitudinal direction of the row. The combing heads are provided downstream with a drafting arrangement whose cylinders are arranged horizontally and at a right angle to the drive shaft. A funnel wheel and a can plate are rotatable about vertical axes. The transmission for driving the cylinders of the drafting arrangement, the funnel wheel and the can plate has two V-drives with a crossed toothed belt each. The first V-drive connects the drive shaft to a drafting arrangement drive shaft which is parallel to the cylinders of the drafting arrangement. The second V-drive connects a shaft which is parallel to the drafting arrangement drive shaft to a vertical drive shaft for the funnel wheel and the can plate.

Continuous drive unit for combers, a drafting arrangement and a coiler

Fiber slivers must be condensed during the course of a spinning process or their mass must be determined. For this purpose there are employed so-called grooved pairs of rollers, that is to say, profiled rolls which define a sliver throughput groove which is limited or confined at both sides. The sliver is guided through a feed or delivery funnel up to the throughput groove. The danger thus exists that individual fibers can jam between the side surfaces or faces of the rollers which form the lateral boundaries of the groove. This danger is eliminated with the invention in that the fiber outlet opening of the feed funnel is located within the region of a wedge-shaped gap which is bounded by an overlapping zone of the side surfaces or faces of the rollers.

Apparatus for the continuous compression or determination of the mass of

The present invention concerns a method for processing a fiber sliver in a drafting arrangement, and a drafting arrangement for implementing the method. The objective for a drafting arrangement, which can be adapted to a wide range of staple lengths, to draft a fiber sliver at high speeds, has led to the following features of the invention:

Method and drafting arrangement for spinning machines for processing a

The shaft on which the rotor is secured is mounted via anti-friction bearings in a sleeve which, in turn, is spaced from the housing by spacer means of low heat conductivity. In addition, at least one heat-conducting means of high heat conductivity connects the sleeve to the housing in heat conductive relation. The heat generated during rotation of the rotor shaft is dissipated through the heat conducting means to allow increased rotational speeds, for example, up to 55,000 rpm.

Bearing arrangement for mounting a rotor of an open-end spinning machine

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Sirnach, Switzerland

Viktor Pietrini