Apparatus for processing and winding a yarn
AssigneeBarmag AG
InventorsKlaus Bartkowiak, Peter Dammann
Life of this patent
Estimating the term…
Abstract
A yarn texturing machine for texturing and winding a yarn, wherein the feed system withdraws the yarn from a texturing device and advances it to a takeup device. Between the feed system and the takeup system, a yarn accumulation or free space is provided for the purpose of receiving the yarn that has slackened during a package doff due to an overfeed. To withdraw the yarn reliably from the feed system, a conveying nozzle is positioned between the feed system and the free space, and the conveying nozzle includes at least one nozzle bore that is directed in the direction of the advancing yarn, so that an air stream directed through the bore toward the yarn generates a tension on the yarn in the direction of its advance. Subsequently, the yarn is blown into the free space.
Claims20
A yarn processing apparatus comprising
- a yarn processing device through which the yarn is advanced,
- a feed system for withdrawing the advancing yarn from the processing device and conveying the yarn along a normal path of travel to a takeup device,
- a yarn conveying nozzle located along the normal path of travel between the feed system and the takeup device and comprising at least one nozzle bore for generating an air stream which engages the advancing yarn and which has a component of movement extending in the direction of the advancing yarn, so that the air stream generates a tension on the yarn upstream of the yarn conveying nozzle and causes slack to be formed in the advancing yarn between the yarn conveying nozzle and the takeup device,
- a free space located downstream of the yarn conveying nozzle and laterally to one side of the normal path of travel for receiving an accumulation of the slack in the advancing yarn caused by the air stream, and
- wherein said nozzle is oriented so that the air stream has a directional component which acts to laterally deflect the advancing yarn from its normal path of travel and into the free space.
A yarn processing apparatus comprising
- a yarn processing device through which the yarn is advanced,
- a feed system for withdrawing the advancing yarn from the processing device and conveying the yarn to a takeup device,
- a yarn conveying nozzle located between the feed system and the takeup device and comprising a conveying channel through which the yarn advances, with the channel being defined by two opposing channel sidewalls, and wherein two nozzle bores open on respective ones of the opposing channel sidewalls for generating intersecting air streams which engage the advancing yarn and which have a component of movement extending in the direction of the advancing yarn, so that the air streams generate a tension on the yarn upstream of the yarn conveying nozzle and causes slack to be formed in the advancing yarn between the yarn conveying nozzle and the takeup device, and
- a free space located downstream of the yarn conveying nozzle for receiving an accumulation of the slack in the advancing yarn caused by the air stream.
Dependencies are inferred from the claim text.