W. Schlafhorst Ag & Company

Gregor Ruth

Hans Grecksch

Ulrich Wirtz

Dietmar Engelhardt

Leo Tholen

Heinz-Georg Wassenhoven

Rolf Haasen

Joachim Stiller

Siegfried Schatton

Herbert Ruskens

Dietmar Englehardt

A yarn splicing device for textile winding machines comprises a splicer mechanism for pneumatically joining yarn ends, upper and lower clamping and cutting devices, and suction-actuated yarn placement devices for placing the yarn ends to be spliced. According to the invention, one yarn placement device is a gripper tube normally parked in a zero position upstream of the yarn travel. The gripper tube has a spring-biased, pivotable gripping flap and a yarn placement hook for simultaneously placing both the lower yarn and the upper yarn to be spliced. For that purpose, one of the gripper tube and gripper tube flap carries the yarn placement hook forwardly for manipulating the upper yarn and a yarn guide disposed between the yarn placement hook and the pivot axis of the flap for placing the lower yarn.

Yarn splicing device for bobbin-winding textile machines

A bobbin winding machine includes a multiplicity of winding stations for rewinding spinning cops. Each of the winding stations has a bobbin magazine for holding the cops and a bottle-like unwinding chamber having a bearing shaft and an arbor being pivotable about the bearing shaft. The unwinding chamber surrounds a cop being fixed on the arbor during unwinding. At least a portion of the unwinding chamber is formed by a cop chute being pivotable between a cop transfer position and an unwinding position. The unwinding chamber has a shell partly encompassing a cop during unwinding.

Bobbin winding machine with a multiplicity of winding stations

The invention relates to a caddy for the mutually independent individual transport of cops and cop tubes and provides a caddy that can be used for different tube diameters, which is achieved by forming the mandrel and base plate of the caddy from separate molded parts. The base plate can be connected securely but detachably and form-fittingly with mandrels of different dimensions for correspondingly differing diameters. The base plate has a central opening with an undercut while the mandrel has an inwardly elastically resilient arrangement of legs that fit over the undercut.

Caddy for the independent individual transporting of cops and cop tubes

A yarn end loosening apparatus is provided for performing yarn end loosening operations on yarn packages. The yarn end loosening apparatus includes a chamber for directing streams of air relative to a yarn package disposed within the chamber to effect loosening of a yarn end from the yarn package. Additionally, the yarn end loosening apparatus includes an assembly for introducing air streams from, respectively, a taller package jet nozzle and a shorter package jet nozzle, the jet nozzles being spaced from one another to each direct a stream of air at the axial location of a type of yarn package having a predetermined axial length. Additionally, the yarn end loosening apparatus includes a device for selectively controlling the supply of air through the taller and shorter package jet nozzles such that only a selected one of the jet nozzles directs air into the chamber during a yarn end loosening operation.

Yarn end loosening apparatus having adjustable height jet nozzles and a

A transport system of the type having a plurality of tube support members for independent transport of yarn packages to and between locations on a textile machine or machines can readily accommodate tube support members supporting different kinds and sizes of yarn packages due to novel constructions of the tube support members in accordance with the present invention. Each tube support member includes a base component compatibly dimensioned with respect to the guiding and tube support driving components of the transport system, a post component for support of a yarn package thereon, and a bumper component for protecting a supported yarn package against undesirable collisions and other impacts with other yarn packages or objects. In several variations of the tube support member, the bumper component extends radially outward beyond the base component as well as the yarn package itself so that the bumper component contacts tube support members or other objects first to thereby prevent collision of the yarn package with the tube support members or other objects. Several variations of the tube support member are particularly suited for supporting yarn packages of the type having a frusto-conical shape such as, for example, so-called cross-wound packages, and the bumper components of such tube support members are structured to protect such yarn packages even where the maximum diameter of the yarn package exceeds the diameter of the base component of the tube support member.

System for independently transporting differently sized textile packages

A method and apparatus for restoring the normal winding of yarn following a yarn break during a textile winding process is provided. A lower yarn end engaging member executes a predetermined number of attempts to engage a lower yarn end and a package exchange member exchanges a supply package for a fresh supply package in response to the detection of the absence of engagement of a lower yarn end after the predetermined number of lower yarn end engaging cycles. Once a lower yarn end is detected, an upper yarn end engaging means performs a predetermined number of attempts to engage an upper yarn end. If engagement of an upper yarn end is detected after a predetermined number of attempts, the lower yarn end and the upper yarn end are joined together and normal winding is resumed. If an upper yarn end is not detected after a predetermined number of attempts, a problem indicating member is activated to indicate to an operator that normal winding of yarn cannot be restored.

Growing community of inventors

Monchengladbach, Germany

Gregor Ruth