Barmag Ag

Hermann Westrich

Erich Lenk

Siegmar Gerhartz

Hans-Jochen Busch

Tobias Binner

Reinhard Behrens

Albert Stitz

Wolfgang Peter Fink

Dieter Haak

Peter Siepmann

Jurgen Gsell

A method and apparatus for winding a continuously advancing yarn to form a package, wherein the package is wound on a driven winding spindle that is mounted in cantilever fashion on a movable spindle support. A contact roll lies with a contact force against the circumference of the package. The contact roll is likewise mounted on a movable support, and during the winding cycle, the center distance between the package and the contact roll is increased by a deflection of the spindle support. In this process the drive of the spindle support is controlled by means of a control device which is connected to a sensor that detects the lift of the contact roll. In accordance with the invention, the drive of the spindle support is driven at a deflection speed when the contact roll is outside of its desired range, and at a lower reversing speed when the contact roll is in its desired range.

Method and apparatus for winding an advancing yarn

A method of producing a synthetic yarn, wherein a yarn is spun and wound in a continuous process. For monitoring the quality, several process parameters are continuously measured. From measured data variations of the process parameters that occur within a predetermined period of time, a quality value is determined that is a measure for the regularity of the production process.

Method of producing a synthetic yarn

A method of winding a continuously advancing yarn to form a package, and so as to define an initial winding time T and a normal winding time. During the normal winding time a contact roll is positioned to lie against the surface of the package being formed, and the winding spindle speed is controlled by the contact roll. During the initial winding time T, however, the rotational speed of the winding spindle is controlled by a speed change function, which associates in the course of the winding cycle a certain winding spindle speed to each package diameter, while maintaining a constant yarn speed during the winding.

Method of winding an advancing yarn to form a yarn package

Method and apparatus for replacing full packages with empty tubes on a

Yarn winding method

A winding apparatus is disclosed which includes a rotatable revolver having at least one spindle mounted thereon, with the spindle being adapted to coaxially mount one or more bobbin tubes. The revolver is rotatably mounted to the frame of the apparatus by a circular bearing surface of substantial diameter, which provides a very stable and durable mounting. The apparatus also includes a traversing mechanism for traversing an advancing yarn and so as to form a cross wound package on the tubes at the winding position. Also, a contact roll is mounted between the traversing mechanism and the winding position so as to be adapted to rest upon the surface of the package being formed. The contact roll is movable a limited distance radially away from the package being wound, and its position is sensed. To accommodate the build of the package, the revolver is positively rotated in response to the sensed position of the contact roll and so that the distance between the axes of the contact roll and the spindle is increased and the pressure between the contact roll and the package may be maintained within a small range of variation.

Yarn winding apparatus and method

A winding apparatus is disclosed which includes a rotatable revolver having a pair of spindles mounted thereon, with the spindles being adapted to coaxially mount one or more bobbin tubes. Upon rotation of the revolver, the spindles are moved between a winding position and a doffing position, and a traversing mechanism is provided for traversing an advancing yarn and so as to form a cross wound package on the tubes at the winding position. Also, a contact roll is mounted between the traversing mechanism and the winding position so as to be adapted to rest upon the surface of the package being formed. The contact roll is movable a limited distance radially away from the package being wound, and its position is sensed. To accommodate the build of the package, the revolver is positively rotated in response to the sensed position of the contact roll and so that the distance between the axes of the contact roll and the operating spindle is increased and the pressure between the contact roll and the package may be maintained within a small range of variation.

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Wuppertal, Germany

Hermann Westrich