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Jet spinning device

A technology of air-jet spinning and guiding device, which is applied to spinning machines, open-end spinning machines, and continuously wound spinning machines, etc., can solve problems such as limiting processing speed, and achieve the effect of preventing false twist

Inactive Publication Date: 2007-04-04
MASCHINENFABRIK RIETER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Turbulence and fluctuations in the air flow have a negative effect on the yarn quality and limit the processing speed

Method used

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Experimental program
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Embodiment approach

[0031] FIG. 1 schematically shows a simplified perspective view of an embodiment of a spinning device 1 according to the invention. A substantially rotationally symmetrical cavity 3 is provided inside a nozzle block 2 . A spindle 5 is arranged in the cavity 3 . A feeding device 15 serves to feed fiber material into the cavity 3 through a fiber guide channel 11 (cf. FIG. 2 ). There are three nozzles 4 for supplying compressed air (or another suitable medium) to generate a substantially tangentially rotating air flow inside the cavity 3 .

[0032]FIG. 2 schematically shows a simplified longitudinal section of the spinning device according to FIG. 1 . The cavity 3 can be seen here in the nozzle block 2 shown in section. Distributed along the circumference in this cavity 3 are three nozzles 4 which are arranged substantially tangentially with respect to the circular spindle 5 and the fiber guide 6 . The nozzles 4 are used to generate a swirling air flow in the region of the ti...

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PUM

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Abstract

The present invention concerns a pneumatic spinning apparatus (1) for producing a yarn or thread spun from fibres. In a nozzle block (2) a hollow room (3) with a spindle (5) is arranged. At least one jet nozzle (4) serves for generating a rotating air stream in the hollow room (3). Opposite the spindle (5) a fibre guide means (6) is arranged, which in the yarn forming process serves as a false core. A fibre guide duct (11) merges from the exterior into the hollow room (3) at the foot end of the fibre guide means (6). The fibre guide duct (11) presents a variable cross-section along its length.

Description

field of invention [0001] This invention relates to a pneumatic device for producing yarn from an array of fibers using a swirling air stream. Background technique [0002] Known from DE 41 05 108 (hereinafter referred to as DE' 108) is an air-jet spinning device for producing yarn from a staple fiber sliver. In a nozzle block provided with a cavity with a tapered support, the fibers are rotated by a rotating air flow to form a yarn. The yarn is removed through a spindle channel. At the base of the conical support there is a fiber-guiding channel leading from the outside into the nozzle chamber. The fiber guide channel is used to feed the fibers or fiber strips into the cavity from the outside. A needle-shaped guide element protrudes above the free end of the conical support with its needle point pointing towards the center of the passage of the spindle, which can be designed to be rotating or stationary. This device has the disadvantage that the quality of the yarn prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H1/115D01H4/02D01H4/38
CPCD01H4/02D01H4/38D01H1/115
Inventor P·安德雷格
Owner MASCHINENFABRIK RIETER AG