W. Schlafhorst & Co.

W. Schlafhorst Ag & Company

Herbert Knors

Wilhelm Zitzen

Ferdinand-Josef Hermanns

Dietmar Engelhardt

Gregor Kathke

Robert Hartel

Herbert Henze

Klaus Rosen

Manfred Veyes

Herbert Merkens

Berndt Pommer

Wolfram Weissenfels

Joachim Rohner

Heinz Zumfeld

Josef Bertrams

Edmund Wey

Rolf Becker

Leo Tholen

Franz-Josef Reiners

Gunter Wilms

Hermann Ruetten

Dirk Jaegers

Erich Quack

Jakob Leven

Wolfgang Kiesewetter

Franz Grabatsch

Karl-Josef Hoehne

Klaus Rautenberg

Hans Grecksch

Wilhelm Maassen

Ulrich Aretz

Manfred Marquardt

Heinz-Lorenz Toputt

Hermann Rutten

Karl-Josef Hohne

Albert T Pesch

Dirk Jagers

A textile machine includes a cheese or cross-wound bobbin winder with winding stations each having a creel for holding a cheese, a reversible rotary cheese drive, a suction nozzle and a swivel drive for swivelling the suction nozzle to the jacket surface of the cheese. A method for grasping a yarn end resting on the cheese includes adjusting a search time during which the inward-swivelled suction nozzle is positioned at the reverse-rotating cheese, in dependence on the instantaneous diameter of the cheese, and on the reverse speed of the rotary cheese drive, which is kept constant over the entire search time. An apparatus for grasping a yarn end resting on the cheese includes a control device, control lines connecting the reversible rotary cheese drive and the swivel drive of the suction nozzle to the control device, and measured value pickups at each winding station for recognizing a predetermined number of cheese revolutions, for detecting the speed of the rotary cheese drive, and for recognizing the swivelled position of the suction nozzle.

Method and apparatus for grasping a yarn end on a cheese

The invention to a yarn tension sensor, in particular for yarns traveling at high speed, to accurately ascertain even short-term yarn tension fluctuations. According to the invention, a yarn guide element is mounted on one head end of a plunger coil disposed in a magnetic field. A position sensor is disposed in the region of the plunger coil and detects even minimal changes in position of the plunger coil. These changes in position are reported to a controller, at whose output variations in current are generated and supplied to the winding of the plunger coil, the variations being such to compensate for the axial force generated by the yarn and acting upon the plunger coil, thereby making the plunger coil virtually motionless.

Yarn tension sensor for a textile machine

The present invention relates to a brake disk arrangement for a yarn tensioning device wherein at least one of a pair of opposed facing brake disks can be acted upon by a variable pressing force in the direction of the other brake disk. According to the present invention, rotary motion is transmitted from one brake disk to the other in a simple manner, without affecting the brake force, by connecting to one of the brake disks a concentric magnet that is secured against relative rotation with respect to this brake disk, and by connecting to the other brake disk a concentrically arranged body of hysteresis material which is secured against relative rotation with that brake disk. At least the brake disk that can be acted upon the variable pressing force comprises a nonmagnetic material and is changeable in position axially relative to the magnet or the hysteresis material associated with the disk. In alternate embodiments, both brake disks may be provided with a magnet.

Rotationally driven brake disk arrangement of a yarn tensioning device

A method and winding apparatus for detecting feed bobbins having feed properties that do not correspond to a predetermined quality when winding feed bobbins onto cross-wound bobbins in an automatic bobbin winding machine is disclosed. The method comprises the steps of measuring the winding speed, counting yarn breaks before a predetermined threshold speed is reached for forming a yarn break count, detecting the quality of a given feed bobbin by comparing the yarn break count with a predetermined number and determining that the given feed bobbin has not attained a predetermined quality if the yarn break count reaches the predetermined number; if the quality is not attained, the given feed bobbin is rejected and the winding process is continued with a new feed bobbin.

Method and apparatus for detecting the feed properties of feed bobbins

An automatic winding machine, includes a plurality of winding stations each having a bobbin unwinding location, a plurality of bobbin magazines each disposed at a respective winding station for receiving a plurality of bobbins on bobbin tubes in order with respect to their tips, the bobbins each having a thread end prepared for unwinding at a given location thereon, and a thread suction device disposed above each respective bobbin magazine having a suction opening formed therein facing the upper end of a bobbin tube of a bobbin disposed in the bobbin magazine to be transferred to the unwinding location.

Automatic winding machine

An automatic coil winding machine with a multiplicity of winding stations at which supply coil magazines with respective rotary feeders are provided, and with a loading device for loading the magazines with supply coils which are moved by transporting means to the magazines, each of the supply coil magazines having a filling location for automatic feeding, and an unloading location, and means for always storing at least one supply coil in the respective rotary feeder between the filling location and the unloading location, includes a device proximate to the filling location and actuatable for performing a function leading to prevention of overfilling a respective rotary feeder with the supply coils.

Automatic coil winding machine

Method of producing a knot-free thread connection by splicing, which includes mixing, alternately interlocking and anchoring individual fibers of the threads to be joined to each other in a first pre-splicing operation, and subsequently further and finally intertwining and anchoring the threads to each other in a separate finish-splicing operation, and an apparatus for carrying out the method.

Method and device for making a knot-free thread connection by splicing

Splicing device for producing a knot-free thread connection by splicing, including a splicing head having a longitudinal groove formed therein for the insertion of threads to be joined together, the splicing head having a plurality of cross grooves formed in the longitudinal groove and the splicing head having compressed air supply holes formed therein, at least two of the cross grooves having at least one compressed air supply hole terminating therein.

Splicing head

Controlled compressed-air splicing device for textile threads with a controlled compressed-air metering valve supplied from a compressed-air supply device, including an automatic quality control device for ensuring the quality of spliced joints formed by the splicing device.

Controlled compressed air splicing device

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Monchen-Gladbach, Germany

Herbert Knors