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Method for producing noil yarn

A production method and technology of staple fiber yarn, applied to spinning machines, continuous winding spinning machines, textiles and papermaking, etc., to achieve the effects of increasing drafting speed, improving the quality of finished yarn, and reducing volume

Inactive Publication Date: 2002-09-04
W SCHLAFHORST & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] This known spinning method is of course disadvantageous, the yarn piecing done in the splicer, especially in terms of the yarn structure, always differs significantly from a "normally" spun yarn

Method used

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  • Method for producing noil yarn
  • Method for producing noil yarn
  • Method for producing noil yarn

Examples

Experimental program
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Effect test

Embodiment Construction

[0042] Figure 1 shows the working positions of a centrifugal spinning machine / winding machine. In addition to a centrifugal spinning device 1, these working spindles also have a winding device 14.

[0043] Usually this known centrifugal spinning device 1 has a spinning centrifuge tank 3 which is supported in the centrifuge tank housing 2 by bearings 4 and driven by an electric motor 5 .

[0044] The bearing 4 can be designed as a magnetic bearing, in which case the supported centrifugal spinning pot 3 is contactless.

[0045] A yarn guide tube 7 can descend in the centrifugal spinning tank, and the yarn guide tube is started by the transmission mechanism 8 shown in the figure, and carries out swinging motion, and can rise or fall along the axial direction simultaneously.

[0046] First, the feed material 6 that has been drafted to the required count by the drafting device 9 reaches the centrifugal spinning tank 3 through the yarn guide tube 7, where it is twisted and wrapped ...

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Abstract

The invention relates to a method for producing short fiber yarn (17) using a spinning centrifuge tank (3) working in two steps, a drafting device (9) for drafting a feed material (6), a An axially displaceable yarn guide tube (7) can be inserted into the spinning centrifuge tank (3) and a winding device (14) for winding the yarn into a cross-wound bobbin (15). The method according to the invention is implemented in such a way that before the end of the first spinning stage, the pretreated yarn end of a yarn (17) unwound from the cross-wound bobbin (15) is in the drafting device (15). The yarn is fed into the feeding material (6) before the pair of front rollers (10) in 9), and at the same time, a partially twisted yarn (11) in the first spinning stage is started to be spun, and the feeding material (6) is interrupted. Continue to input, change the running direction of the yarn, and the yarn enters the second spinning stage, that is, the partially twisted yarn (11) wound into the yarn cake (12) in the spinning centrifuge tank (3) is under supplementary twisting It is unwound from the centrifugal spinning pot (3) and wound onto the cross-wound bobbin (15).

Description

technical field [0001] The present invention relates to a method of producing a staple fiber yarn. Background technique [0002] It is known that there are different production methods for the production of short staple yarns. [0003] In addition to ring spinning and rotor spinning, for example centrifugal spinning is a known method for a long time. [0004] The centrifugal spinning method is further divided into two different spinning forms, namely one-step spinning and two-step spinning. [0005] In both spinning forms, the feed material can be a fiber sliver stored in a spinning can, or a roving from a roving bobbin, which is drafted in a drafting device according to the required yarn count, And the yarn is conveyed into the high-speed rotating spinning centrifugal tank through a yarn guide tube mounted on an axially movable support. [0006] The feed material from the outlet of the yarn guide tube forms a spun yarn that wraps around the wall of the centrifugal tank a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H1/00D01H1/06D01H1/08D01H7/02D01H7/74D01H15/00
CPCD01H15/004
Inventor K·科尔策
Owner W SCHLAFHORST & CO
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