Method and apparatus for spinning staple fibres on ring-spinning machines
AssigneeDeutsche Institut fur Textil-und Faserforschung Denkendorf
InventorsPeter Artzt, Jurgen Schneider, Uwe Heitmann
Life of this patent
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Abstract
An apparatus and associated method for spinning staple fibers on a ring spindle machine includes a ring spindle disposed downstream of a drawing frame outlet. A thread guiding device is disposed between the drawing frame outlet and the ring spindle and includes a twisting apparatus that is magnetically coupled with the ring spindle so as to rotate at the same speed as the ring spindle. The twisting apparatus has a thread braking device configured along a path of the thread through the twisting apparatus. An attachment configured at a top of the ring spindle has a plurality of circumferential grooves configured to catch the thread coming from the twisting apparatus and being wound onto the ring spindle.
Claims18
An apparatus for spinning staple fibers on a ring spindle machine, said apparatus comprising:
- a ring spindle disposed downstream of a drawing frame outlet;
- a thread guiding device disposed between said drawing frame outlet and said ring spindle, said thread guiding device comprising a twisting apparatus that is magnetically coupled with said ring spindle so as to rotate at the same speed as said ring spindle;
- said twisting apparatus further comprising a thread braking device configured along a path of the thread through said twisting apparatus;
- an attachment configured at a top of said ring spindle and spaced from said twisting apparatus, said attachment comprising a plurality of circumferential grooves configured to catch the thread coming from said twisting apparatus and being wound onto said ring spindle.
An apparatus for spinning staple fibers on a ring spindle machine, said apparatus comprising:
- a ring spindle disposed downstream of a drawing frame outlet;
- a thread guiding device disposed between said drawing frame outlet and said ring spindle, said thread guiding device comprising a twisting apparatus that is magnetically coupled with said ring spindle so as to rotate at the same speed as said ring spindle;
- said twisting apparatus further comprising a thread braking device configured along a path of the thread through said twisting apparatus;
- an attachment configured at a top of said ring spindle and spaced from said twisting apparatus, said attachment comprising a plurality of circumferential grooves configured to catch the thread coming from said twisting apparatus and being wound onto said ring spindle;
- and
- wherein said attachment comprises a circumferential belt area adjacent to said top of said ring spindle, said grooves defined along said attachment such that an end of said grooves said defined by said belt area.
An apparatus for spinning staple fibers on a ring spindle machine, said apparatus comprising:
- a ring spindle disposed downstream of a drawing frame outlet;
- a thread guiding device disposed between said drawing frame outlet and said ring spindle, said thread guiding device comprising a twisting apparatus that is magnetically coupled with said ring spindle so as to rotate at the same speed as said ring spindle;
- said twisting apparatus further comprising a thread braking device configured along a path of the thread through said twisting apparatus;
- an attachment configured at a top of said ring spindle and spaced from said twisting apparatus, said attachment comprising a plurality of circumferential grooves configured to catch the thread coming from said twisting apparatus and being wound onto said ring spindle;
- and
- wherein said attachment comprises a collar configured at an end thereof that is opposite from said thread guiding device, said collar protruding radially from said attachment, said grooves defined in said collar.
A method for spinning stable fibers on a ring spinning machine, whereby staple fibers are drawn into a fiber composite in a drawing frame, twisted together to form a thread, and wound up on a spindle by a traveler device, said method comprising:
- running the fiber composite from the drawing frame through a thread-guiding device;
- imparting a twist to the fiber composite with a twisting device configured with the thread-guiding device, the twisting device driven synchronously with the spindle so that a fully twisted thread emerges from the twist device;
- and
- running the twisted thread through a spindle attachment on the spindle, the attachment having grooves that grasp the thread before the thread reaches the traveler device.
Dependencies are inferred from the claim text.