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CA2036003A1 - Process and an apparatus for texturing threads - Google Patents

Process and an apparatus for texturing threads

Info

Publication number
CA2036003A1
CA2036003A1 CA002036003A CA2036003A CA2036003A1 CA 2036003 A1 CA2036003 A1 CA 2036003A1 CA 002036003 A CA002036003 A CA 002036003A CA 2036003 A CA2036003 A CA 2036003A CA 2036003 A1 CA2036003 A1 CA 2036003A1
Authority
CA
Canada
Prior art keywords
texturing
nozzle
texturing nozzle
thread
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002036003A
Other languages
French (fr)
Inventor
Edda Frimmersdorf
Horst-Dieter Rector
Gunter Mager
Horst D. Rector
Wolfgang Spelthahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Vetrotex Deutschland GmbH
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2036003A1 publication Critical patent/CA2036003A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H4/00Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE

In order to prevent threads consisting of glass fibres being broken as they enter a texturing apparatus, the fibres are subjected directly to an artificial twisting process during the texturing process. A texturing nozzle can be used as an apparatus for carrying out the process. This texturing nozzle is provided along at least part of its axial dimension with spiral grooves. Because of this, the air that is injected into the nozzle, and with it the thread, are subjected to an intensive twisting effect.

Description

This invention rela-tes to a method texturing threads wherein the threads are passed to a first delivery sta~ion, textured, provided with an imitation twist, and passed to a second supply station. The present invention also relates to a texturing apparatus for carrying out the method that incorporates a texturing nozzle surrounded by a casing, around which there is an annular chamber. Part of the chamber communicates through a line to a source of compressed air, and another part communicates throuyh ra~ial drillings o to the interior space of the texturing nozzle.
';' In order to prevent the breakaye of individual filaments from having a disadvantageous effect when a thread, particularly a thread o~ glass fibres, enters the texturing apparatus, causing not only uneven hulking of the thread, but also complete breakage of the threads, it is usual to twist together tha filaments that are combined to make a thread.
Because o~ this twisting of the combined filaments prior to movement to the texturing apparatus is regarded as a particularly costly step, DE 39 19 758 A1 proposes a process in which the threads that pass first to a first delivery system, from there to a texturing nozzle, and ~inally to a second delivery system pass through an imitation twist apparatus between the texturing nozzle and the second delivery system.
.
This imitation twist apparatus that follows the texturing nozzle in the direction in which the threads move is vulnerable to dust and fibre deposits, partlcularly iE
this consists essentially of a twist pin that can be rotated ahout its axis. This twist pin around which the threa~ loops by 1~0 rotates at a peripheral speed that essentially matches the running speed of the thread and which if the twist pin is only a few millimeters in diameter, leads to extremely high rotational speeds. Even small amounts o~ dirt in this apparatus can thus cause considerable frictional - ,, . ...... . , . ,: .. : .. . . , . : .

losses. For this reason, relatively .~requ~.nt breakdowrls and interruptions for cleaning, maintenance, and repairs, are unavoidable.

It an ohject o~ the present invention to provide an improved and, in particular, more reliable process ~or texturing threads, particularly glass fibre threads, the filaments that form the thread being additionally textured in an optimally twisted state.

According to the present invention there i.is provided a lo process ~or texturing threads, which are first being pas~ied to a ~irist delivery system, textured and provided with a false twist, beEore being passed to a second delivery system, : -the improvement wherein during the texturing process a false twi.st is applied directly to the thread.

~15According to the present invention, ths twisting process . .
and the texturing process have been combine~ so as to form one step in the overall procesis, so that not only is thie thread spared from coYering the~short stretch between a texturing nozzle and an artificial twist machine but also separate machinery for texturing and for imparting a false twiist are eliminated. In particlllar, the combined texturing and twisting process has the advantage that the high VPlocity air jets required for t~xturing are also effective in the area in which the Palse twist i5 imparkPd, and for thiis reason prevent the formation o~ dust and fibre deposits and the creation of other contaminiantsi.

In order to carry out the process according to the pre5ent invention, a texturing apparatu5 is used Which is fitted with a texturing nozzle that is surrounded by a ~ aasing, about which thexe is an annular chamber, part o which is connected t~rough a line to a siource of compressed air and part of which is conneated to the int~rior space of : .

: i!

~' ~ " ', .. ` . ` ' . . .. , , . ' ' .. .

;2~31;~03 the texturin~ no~zle through dri]linys that are essentially radial and which are orient~d so as to be inclined towards the direction in which the thread moves.

In order to twist the fil~ments that are passed coaxially through the texturing nozzll~ using a texturing apparatus of this kind, it is sufficilent if, according to the present invention, the inside wall of the texturing nozzle is provided along a-t least part of its axial dimension with spiral grooves.

lo The grooves, which preferably ext~nd continuously with a large pitch acros~ at least ~ specific interval ahead of and behind th~ outlet area of the drillings that are essentially radial and which are inclined to the direction o~ movement of the thread impart to the threads and to the air jets which additionally and preferably flow into the interior space of the texturing nozzle tangentially an ef~ect that twists the threads very intensively without there being any need ~or additional precautions.
.. . ..
However, it is possible to use a texturin~ apparatus of the type described heretofore Por carrying out the process according to the present invention, in which the filaments that are passed coaxially through the texturing nozzle are twisted in which the texturing nozzle is supported in the .
casing so as to be rotatable about its axis, with the end piece of the texturing nozzle that extends beyond the casing being provided with a driving wheel or pinion that i5 mounted on it so as to be ~ixed and non-rotatable.

~ he filaments that~are pressed against the inslde wall of the texturing nozzle in th~ textured state are ePfectively picked up by the rotation of the nozzle whereby the threads are similarly twistad very intensively.

:

:

.

;~3 Even though as a rule it will be sufficien~ to use one or the other prescribed texturing devices in order to achieve optimal imitation twisting of the thread, a further configuration of the present inven-tion provides that the texturing nozzle be provided both with spiral grooves and also be rotatably supported and drive~n within the casing.

In order to achieve more careful guidance of the threads it is advantageous if the texturiny nozzle is provided with a conically tapered entry area, a cylindrical centre section, and a conical or arced widened outlet area.

If such a texturing no2zle is used, the individual filaments of a thread are subjected to minimal stress. In the case of a tsxturing nozzle that is driven so as to rotate a~out its axis and to transfer its rotational speed to the threads with a minimum o~ loss, a further configuration o~
the present invention provides that the texturing nozzle is provid~d with a transverse pin that is arranged within the widened outlet area and which pas~e~ through the int rior space o~ the texturing nozzleO ~Since the threads can only pass this transver~e pin on one side, not only is the outlet area of the texturiny nozzle that is available for the passage of the threads reduced to less than one-half, but, in addition, the threads are displaced from the area of the midline axis of the noz21e in the area of the cross or transverse pin and because o~ the eccentric position into which it i~ moved it i5 ~ubjected to centri~ugal force which means that the thread is pressed hard against the inner wall of the nozzle which ~urther enhanae~ a very strong twisting e~fect.

~he invention will now be described in more detail, by way o~ example only, with reference to the accompanying drawings in which:~

;~03~ 3 Figure 1 shows a -texturing nozzle with spiral grooves on the inner wall of the nozzle, in longitudinal section;

Figure 2 is a cross section through the texturing nozzle on the line A-~ in figure l; and Figure 3 shows a rotatably supported texturing nozzle fitted with a driviny wheel, in longitudinal section.

As is shown in figure 1, a thread 3 made up o~ filaments passes in the direction indicated by the arrow 2 through a texturing nozzle which bearsi the overall re~erence 1, which lo is in turn surrounded hy a casing tnot shown herein). This thread passes through a conically restricted inlet entry area 4 into the texturing nozzle 1, passes through an essentially cylindrical middle section 5, and then passes through an outlet area 6 that is widPned in an arc-shape, in a t~xtured and twisted state.

The texturing nozzle 1 is acted on hy compresied air through drillings 7 inclined at an acute angle to the direction in which the thread 3 moves, said drillingG 7 being distr;buted equally about the periphery of the texturing nozzle 1 and being identically oriented tangentially and opening out into the essentially cylindrical middle section 5. This middle iection incorporates spiral grooves 8 along its axial dimension, and these extend down as far as the outlet cro5s section o~ the texturing nozzle 1.

As can be seen in particillar from figure 2, the, adjacent grooves 8 are ln each instance s~parated by means o~ a land 9 that is of approximately semi-circular cross section, so that there are no sharp edges that could damage the thread 3 that pa0ises through them.

Because of the spiral-shaped pro~iling o~ the nozzle walls, the twis-ting air that is lntroduced, and with it the thread, are subjected to an intensive effect about its long.itudinal axis and is thus twisted at the same time as it is textured.

As is shown in figure 3, the tex-turing and twisting efEect can also be achieved by supporting the texturing nozzle 1' by means of ball bearings lo, so as to be rotatable within a casin~ 11 about its axis by means of a drive wheel 12.

A thread (not shown herein) moves in the direction indicated by an arrow 2 throu~h a conically constricted entry area 4' into the texturing nozzle l', passes through a cylindrical centre section 5', and then moves through a conica~ly expanded outlet area 6' in a similarly textured and twisted 6tate.
. .
The housing 11 includes an annular space 13 that is defined at both face ends by sealing washers 14 that are of approximately U-cross section, each inside ed~e of the sealing washers 14 being provided with an elastic sealing ring 15.
. , .
~he annular space 13 is connected through a radial connector piece 16 to a source o~ compressed air (not shown herein). Drillings 17 that are arranged at an acute angle relative to the midline axi~ o~ the texturing nozzle 1' are distributed and evenly spaced about the periphery of the texturing nozzle 1'. The compressed air acts on the centre section 5' from the iannular chamber 13 by way o~ these drillings 7'.

Because o~ thle compxessed air, the thread within the cen~re section 5' i5 bulked, pressed ayainst the inside wall of the ¢entre section 5', and thus the rotati.onal movement of ", '.

-the texturing nozzle 1' is transmitted to the thread.

A cross pin 17 passes throuyh the outlet area 6' of the texturing nozzle 1' and compels the thread to move eccsntrically, so that the thread is sub~ected to incre~sed centrifugal force as a result of this. Because oE this, the thread is pressed against the widened outlet area 6', against the inside wall, so that the rotational movement is continued intensively.

~ ~ -,, ; . ; :
.: . . .. . .
. , . !, , .
', ,, , ~

Claims (6)

1. In a process for texturing threads, which are first being passed to a first delivery system, textured and provided with a false twist, before being passed to a second delivery system, the improvement wherein during the texturing process a false twist is applied directly to the thread.
2. A texturing apparatus comprising a texturing nozzle surrounded by a casing, an annular chamber around said texturing nozzle, part of said chamber communicating through a line to a source of compressed air and part of said chamber communicating through drillings that are substantially radial and inclined at an angle to the direction of movement of the thread within the inside space of the texturing nozzle, and spiral grooves provided in that the inside wall of the texturing nozzle over at least part of its axial dimension.
3. A texturing apparatus comprising a texturing nozzle surrounded by a casing, an annular chamber around said texturing nozzle, part of which is connected through a line to a source of compressed air and part of which is connected by way of radial drillings with the inside space of the texturing nozzle, said texturing nozzle supported in the casing so as to be rotatable about its axis, and said texturing nozzle having an end piece that extends beyond the housing provided with a drive wheel non-rotatably mounted thereon.
4. A texturing apparatus as claimed in claim 2 or claim 3, wherein the texturing nozzle is provided with spiral grooves and is be rotatably supported within the housing.
5. A texturing apparatus as claimed in any one of claims 2 to 4, wherein the texturing nozzle is provided with a conically restricted entry zone, a substantially cylindrical centre section, and an outlet zone that is tapers out conically or arcuately.
6. A texturing apparatus as claimed in claims 3 or 4, wherein the texturing nozzle is provided with a cross pin arranged within the widened outlet zone, and which passes through the inside space of the texturing nozzle.
CA002036003A 1990-02-09 1991-02-08 Process and an apparatus for texturing threads Abandoned CA2036003A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4003950A DE4003950C1 (en) 1990-02-09 1990-02-09
DEP4003950.1-26 1990-02-09

Publications (1)

Publication Number Publication Date
CA2036003A1 true CA2036003A1 (en) 1991-08-10

Family

ID=6399794

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002036003A Abandoned CA2036003A1 (en) 1990-02-09 1991-02-08 Process and an apparatus for texturing threads

Country Status (15)

Country Link
EP (1) EP0440944A1 (en)
JP (1) JPH055237A (en)
KR (1) KR910021501A (en)
CN (1) CN1054105A (en)
AR (1) AR244357A1 (en)
BR (1) BR9100521A (en)
CA (1) CA2036003A1 (en)
DE (1) DE4003950C1 (en)
FI (1) FI910614L (en)
HU (1) HU910428D0 (en)
NO (1) NO910089L (en)
PL (1) PL288732A1 (en)
PT (1) PT96716A (en)
RU (1) RU1833442C (en)
ZA (1) ZA91433B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5276499A (en) * 1998-09-03 2000-03-27 Retech Aktiengesellschaft Texturing method
CN103614833B (en) * 2012-10-30 2016-08-24 苏州多维特种纤维制品科技有限公司 A kind of continuous function fibre bundle air-flow dispersion and forming method and equipment thereof
CH708620A1 (en) * 2013-09-30 2015-03-31 Rieter Ag Maschf Fiber guide element for a spinning nozzle of an air spinning machine and thus equipped spinning station.
CN103789928A (en) * 2014-01-28 2014-05-14 嘉兴学院 Crimping fiber elastic non-woven fabric and manufacturing method thereof
CN105862214A (en) * 2016-05-27 2016-08-17 苏州市丹纺纺织研发有限公司 Air textured yarn nozzle structure
CN108716035B (en) * 2018-06-19 2020-08-04 南通纺织丝绸产业技术研究院 A kind of air-jet deformation combined device for preparing super cotton-like polyester nylon air-jet deformed mixed filament
CN108796718B (en) * 2018-06-19 2021-05-14 苏州大学 Super-imitation cotton polyester-polyamide air-jet textured mixed filament yarn and preparation method thereof
CN108774770B (en) * 2018-06-19 2021-05-14 苏州大学 A method for preparing polyester-nylon air-jet-textured mixed filament yarn by high-speed drawing air-jet texturing process
WO2019241914A1 (en) * 2018-06-19 2019-12-26 南通纺织丝绸产业技术研究院 Air-jet texturing combined device for preparing super cotton-like air-jet textured polyester-nylon combined filament yarns

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2015765A1 (en) * 1968-08-16 1970-04-30 Basf Ag DEVICE FOR OBTAINING BULKY YARNS
DE1785158C3 (en) * 1968-08-17 1979-05-17 Metallgesellschaft Ag, 6000 Frankfurt Round nozzle for pulling off and depositing threads to form a thread fleece
US4693071A (en) * 1985-12-20 1987-09-15 Burlington Industries, Inc. Vacuum texturizing process
DE3919758A1 (en) * 1989-06-16 1990-12-20 Dietze & Schell METHOD FOR AIR TEXTURING AND DEVICE FOR ITS IMPLEMENTATION

Also Published As

Publication number Publication date
RU1833442C (en) 1993-08-07
FI910614L (en) 1991-08-10
AR244357A1 (en) 1993-10-29
PT96716A (en) 1992-12-31
PL288732A1 (en) 1992-01-13
EP0440944A1 (en) 1991-08-14
KR910021501A (en) 1991-12-20
FI910614A0 (en) 1991-02-08
NO910089D0 (en) 1991-01-09
NO910089L (en) 1991-08-12
JPH055237A (en) 1993-01-14
ZA91433B (en) 1991-11-27
DE4003950C1 (en) 1991-06-20
HU910428D0 (en) 1991-08-28
BR9100521A (en) 1991-10-29
CN1054105A (en) 1991-08-28

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Legal Events

Date Code Title Description
FZDE Discontinued