W. Schlafhorst Ag & Company

Oerlikon Textile Gmbh & Co Kg

Saurer Spinning Solutions Gmbh & Co. Kg

Saurer Germany Gmbh & Co. Kg

Elisabeth Klaczynski

Heinz-Georg Wassenhoven

Hans Grecksch

Brigitte Riede

Michael Spitzer

Detlef Schelter

Bert Schl&ouml;mer

Lothar Winzen

Philipp Schiffers

Eduard Prediger

Dirk Brakensiek

Erwin Peters

Dieter Haaken

Heiko Toepke

Lothar Uedinger

Harald Wilhelm Wassen

Tai Mac

Harry Gatzke

Hans-Josef Schröder

Bert Schlömer

A textile machine for producing cross-wound packages, comprising a plurality of workstations, each of which has at least one pneumatic consumer, and comprising a suction system which has at least one vacuum source to which the pneumatic consumers of the workstations are connected via a machine-length vacuum duct arranged in the region of the central axis between two rows of workstations. In order to modify such a textile machine producing cross-wound packages in such a way that it is ensured that the required minimum spinning vacuum is always available at all workstations of the textile machine during spinning operation, according to the invention the textile machine producing cross-wound packages has, in addition to the vacuum duct, a machine-length bypass duct which is also installed in the region of the central axis and is arranged above chain ducts for service units.

Textile machine producing cross-wound packages

A yarn traversing device () for a spooling device () of a textile machine producing cross-wound bobbins () comprises a yarn guide (), which is connected by an endless tensioning means designed as a toothed belt () to a single drive (), wherein the toothed belt () rotates in a largely closed housing () of the yarn traversing device () and is guided by guide wheels (or) arranged laterally next to a traversing area (B) and a drive wheel () connected to the electric motor single drive (). The guide wheels (or) each have a smooth running surface (), which is largely resistant to dirt, over which the toothed belt () runs with its toothing ().

Yarn traversing device for a spooling device of a textile machine producing cross-wound bobbins

A spinning rotor for use at high speeds in open-end spinning machines has a rotor cup having an annular wall portion defining a rotor opening, a bottom wall portion merging with the annular wall portion, and a mounting hub extending exteriorly from the bottom wall portion. A rotor shaft is affixed to the mounting hub coaxially with the rotor cup. The merger of the bottom and annular wall portions of the rotor cup defines a maximum exterior diameter of the rotor and an interior rotor groove. The annular wall portion, the bottom wall portion and the mounting hub are of different cross-sectional thicknesses with the cross-sectional thickness of the bottom wall portion increasing from the rotor groove to the mounting hub. The wall thickness is less than 1.2 mm in the area of the maximum exterior diameter of the rotor cup () and the rotor cup has an aerodynamic exterior contour free of edges for deterring turbulent boundary layer air flow thereabout and an interior contour for promoting fiber spinning into a yarn.

Spinning rotor for open-end spinning machines

A spinning device comprising a spinning box housing; a spinning rotor having a spinning cup on a rotor shaft; a cover element; a traveling belt acting tangentially on the rotor shaft; a rotor brake; a pivotable expander roller moveable within a maximum pivot angle via a pressure lever system connected to the brake gear of the rotor brake between an operative position when the spinning box is closed in an inoperative position wherein the expander roller is automatically lifted off the tangential belt and the rotor brake is applied to the rotor shaft when the spinning box is opened; a brake and locking lever having a locking recess in contact with an arresting roller arranged on the cover element; and an arrangement in the pressure lever system for absorbing shock-like forces acting on the expander roller and for preventing the forces from being transmitted to the brake and locking lever.

Spinning device

A spinning rotor adapted to be seated in a spinning box of an open-end spinning machine and having an identification mark (,), preferably embodied as alpha-numeric characters, formed at a location on the rotor cup (,) at which the information content of the identification mark (,) can be visually determined while within the spinning box after opening and stoppage of the rotor but without removal from the spinning box, thereby permitting a user-friendly, time-saving and dependable visual check of the spinning rotor type.

Spinning rotor with identification mark

A spinning rotor for use at high speeds in open-end spinning machines has a rotor cup having an annular wall portion defining a rotor opening, a bottom wall portion merging with the annular wall portion, and a mounting hub extending exteriorly from the bottom wall portion. A rotor shaft is affixed to the mounting hub coaxially with the rotor cup. The merger of the bottom and annular wall portions of the rotor cup defines a maximum exterior diameter of the rotor and an interior rotor groove. The annular wall portion, the bottom wall portion and the mounting hub are of different cross-sectional thicknesses with the cross-sectional thickness of the bottom wall portion increasing from the rotor groove to the mounting hub. The wall thickness is less than 1.2 mm in the area of the maximum exterior diameter of the rotor cup (,) and the rotor cup has an aerodynamic exterior contour free of edges for deterring turbulent boundary layer air flow thereabout and an interior contour for promoting fiber spinning into a yarn.

Growing community of inventors

Erkelenz, Germany

Elisabeth Klaczynski