Abstract

The invention relates to a device and to a method which can be applied by means of said device, which device and method are used for winding and twisting in particular yarns in ring spinning and ring twisting machines. The solution provided uses arrangements of high-temperature superconductive magnetic bearings in order to prevent burning of the yarn at high speeds due to the rotation of the permanent magnet rotors disposed coaxially to the spindles. Proceeding from the prior art, the problem addressed by the invention consists in creating a device and a method for winding and twisting fibrous material in ring spinning and ring twisting machines, with which device and method the working speed of the machines can be increased significantly, higher productivity can be achieved in ring spinning and the time and material outlay for assembling and servicing the device can be reduced. This problem is solved in that at least two high-temperature superconductive stators, together with the thermally connected cooling means thereof, are arranged without contact and parallel to one another along the course of the spindle row and the magnetic-field-generating rotors oriented coaxially to the spindle are inserted in the magnetic field of the continuous space between the adjacent stators so as to be magnetically levitated.

IPC Classes  ?

• D01H 7/56 - Ring-and-traveller arrangements with freely-rotatable ringsRing-and-traveller arrangements with braked or dragged rings

Abstract

A device and a method for winding and twisting fibrous material in ring spinning and ring twisting frames are disclosed. The device and method allow the operating speed of the frames to be substantially increased, achieve higher productivity during ring spinning, and reduce the outlay, in terms of time and material, for assembling and servicing the device. This is achieved in that at least two high-temperature superconducting stators, together with the thermally connected cooling devices thereof, are arranged in a contactless manner and in parallel with one another along the progression of the spindle row, and the magnetic field-generating rotors, oriented coaxially with respect to the spindle, are introduced in a magnetically levitating manner in the magnetic field of the continuous intermediate space, between the stators which are adjacent in each case.

IPC Classes  ?

• D01H 7/52 - Ring-and-traveller arrangements
• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• D01H 7/56 - Ring-and-traveller arrangements with freely-rotatable ringsRing-and-traveller arrangements with braked or dragged rings

Abstract

The present invention provides a composite core yarn comprising at least two conductive filaments as a core and a cover layer which encapsulates the core. For providing an adaptable composite core yarn, the cover layer comprises staple fibers. A woven fabric comprising the composite core yarn as well as an article of clothing comprising the composite core yarn is provided together with a method of producing the composite core yarn and a description of different utilizations of the composite core yarn in different applications is likewise provided.

IPC Classes  ?

• D02G 3/44 - Yarns or threads characterised by the purpose for which they are designed
• A41D 1/00 - Garments
• A61B 5/024 - Measuring pulse rate or heart rate
• D02G 3/12 - Threads containing metallic filaments or strips
• D02G 3/32 - Elastic yarns or threads
• D02G 3/36 - Cored or coated yarns or threads

Abstract

The present invention provides a composite core yarn comprising at least two conductive filaments (13, 14) as a core and a cover layer (10) which encapsulates the core. For providing an adaptable composite core yarn, the cover layer (10) comprises staple fibers. A woven fabric comprising the composite core yarn as well as an article of clothing comprising the composite core yarn is provided together with a method of producing the composite core yarn and a description of different utilizations of the composite core yarn in different applications is likewise provided.

IPC Classes  ?

• D02G 3/12 - Threads containing metallic filaments or strips
• D02G 3/32 - Elastic yarns or threads
• D02G 3/36 - Cored or coated yarns or threads
• D02G 3/44 - Yarns or threads characterised by the purpose for which they are designed