WO2015181019A1 - Procédé et dispositif servant à filer à chaud et à crêper plusieurs fils - Google Patents

Procédé et dispositif servant à filer à chaud et à crêper plusieurs fils Download PDF

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Publication number
WO2015181019A1
WO2015181019A1 PCT/EP2015/061100 EP2015061100W WO2015181019A1 WO 2015181019 A1 WO2015181019 A1 WO 2015181019A1 EP 2015061100 W EP2015061100 W EP 2015061100W WO 2015181019 A1 WO2015181019 A1 WO 2015181019A1
Authority
WO
WIPO (PCT)
Prior art keywords
crimping
circumference
threads
cooling drum
yarn
Prior art date
Application number
PCT/EP2015/061100
Other languages
German (de)
English (en)
Inventor
Marco Kaulitzki
Original Assignee
Oerlikon Textile Gmbh & Co. Kg
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 Oerlikon Textile Gmbh & Co. Kg filed Critical Oerlikon Textile Gmbh & Co. Kg
Priority to EP15725559.7A priority Critical patent/EP3149231A1/fr
Publication of WO2015181019A1 publication Critical patent/WO2015181019A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D13/00—Complete machines for producing artificial threads
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl

Definitions

  • the invention relates to a method for melt spinning and crimping a plurality of threads according to the preamble of claim 1 and an apparatus for melt spinning and crimping a plurality of threads according to the preamble of claim 7.
  • the yarns In the production of crimped yarns in a melt spinning process, it is common for the yarns to be fed and treated together as a thread group after extrusion.
  • the multifilament threads In order to produce a crimping in the individual filament strands of the threads, the multifilament threads are pushed up next to one another in each case to form a thread stopper.
  • This process step is carried out by the so-called texturing nozzles, in which the filaments of a thread are upset by means of a hot fluid within a stuffer box of the texturing to a thread plug.
  • the filaments settle in loops and sheets and are compacted within the thread plug.
  • the yarn plugs are thermally treated.
  • the yarn plugs are deposited on the circumference of a cooling drum, which is driven at a predetermined peripheral speed.
  • the dwell time for cooling the thread plugs is essentially determined by the circumferential speed of the cooling drum on the one hand and on the other hand by the degree of wrap around the thread plugs on the circumference of the cooling drum. Since the peripheral speed of the cooling drum Due to the limited process parameters, intensive cooling can be achieved by several wraps of the yarn plug on the circumference of the cooling drum.
  • Such a method and such a device for melt spinning and crimping a yarn sheet is known, for example, from DE 26 32 082.
  • the spun threads are next to each other by means of several texturing nozzles compressed in each case a yarn plug and stored on the circumference of a cooling drum.
  • the yarn plugs are placed directly next to each other without clearance on the circumference of the cooling drum and guided in several wraps around the circumference of the cooling drum. Due to the direct contact of the adjacent yarn plug to each other, mutual influences of the individual filaments of the yarn plug arise. Particularly in the case of thread plugs having a correspondingly low thread plug density, a loose bond of the filaments within the thread plug causes individual filaments in the adjacent wraps of the adjacent thread plug to snag on the circumference of the cooling drum.
  • Such entanglements have a negative effect, in particular when the thread stoppers are dissolved relative to the crimped threads. Such irregularities in the structure of the crimped threads are undesirable. In addition, such entanglements create thread tension variations in the dissolution of the crimped yarns which adversely affect, for example, the entanglement process of the yarn.
  • the solution of the problem is characterized in the generic device in that adjacent texturing nozzles of the crimping form such a Köselungsabstand between them, that the yarn plugs are individually with each several wraps side by side on the circumference of the cooling drum feasible.
  • the invention is characterized in that the yarn plugs are guided separately on the circumference of the cooling drum. Mutual influence of the thread plug is excluded.
  • the resolutions of the yarn plugs are offset in the axial direction of the cooling drum.
  • the residence time of each thread plug on the circumference of the cooling drum can be increased many times.
  • the number of straps Conditions of the individual yarn plug is not limited and may include two, three or more wraps.
  • the method variant is preferably carried out, in which the wraps of one of the yarn plugs are guided on the circumference without spacing next to each other.
  • the wraps of a thread plug close to the circumference of the cooling drum lead.
  • Such a tray is favored by the development of the device according to the invention, in which the crimping distance between the texturing is at least greater than a double guide width of the yarn plug on the circumference of the cooling drum.
  • the crimping distance between the texturing is at least greater than a double guide width of the yarn plug on the circumference of the cooling drum.
  • the utilization of the cooling surface of a cooling drum can be further improved by adjacent wraps of adjacent yarn plugs are guided along the circumference with or without distance next to each other. Since the dissolution zones of the thread plugs are separated from one another by the respective wraps, even a guidance of the thread plug wraps of adjacent thread plugs is possible without spacing. However, in order to allow a safe storage of the yarn plug, a small distance is preferably selected between adjacent wraps of adjacent yarn plug.
  • the handling for applying the yarn plugs to the circumference of the cooling drum is preferably carried out separately in individual steps. In this case, in particular, the method variant has proved successful, in which at least the crimped thread of one of the thread plugs is received by a stationary suction device during the application of the thread plugs.
  • the yarn plugs can be selected so as to be successively placed on the circumference in several wraps around the jacket of the cooling drum.
  • the device according to the invention has a stationary suction device for the temporary guidance of individual threads on the discharge side of the cooling drum.
  • a stationary suction device for the temporary guidance of individual threads on the discharge side of the cooling drum.
  • the method variant has proven particularly useful in which the spun threads are stretched together with several wraps on a godet unit with at least one driven godet side by side and in which the stretched threads after expiry of the godet shell in a straight yarn path run parallel to each other in the texturing nozzles.
  • This allows the drawn threads to be guided and textured directly in the straight threadline without any deflection.
  • the threads can be deducted on the one hand as a group of threads after spinning and lead without rerouting under the same conditions for crimping.
  • the device according to the invention is particularly suitable in its development, in which the godet unit associated with the spinning device has at least one driven godet jacket, on the circumference of which the spun threads can be guided, each with the crimping distance between them.
  • the threads can be parallel during stretching and curling.
  • the cooling drum downstream of a galette unit is arranged with at least one driven godet casing on the circumference of the crimped threads with each crimping distance between them feasible are.
  • the quality of the threads produced can be further improved by providing a post-treatment device arranged downstream of the crimping device with a plurality of swirling aggregates, in which the swirling aggregates are held to one another with the croaking spacing.
  • a post-treatment device arranged downstream of the crimping device with a plurality of swirling aggregates, in which the swirling aggregates are held to one another with the croaking spacing.
  • FIG. 1 shows schematically a view of a first embodiment of the device according to the invention
  • Fig. 2.3 shows schematically several partial views of the embodiment of Fig. 1 at a process start
  • Fig. 3 shows schematically a view of a further embodiment of the device according to the invention
  • a first embodiment of the device according to the invention for melt spinning and crimping a plurality of threads is shown schematically.
  • the device consists of a spinning device 1, a drawing device 8, a crimping device 11 and an aftertreatment device 16, which are arranged one behind the other to form a yarn path.
  • the crimped threads are wound up into coils after a post-treatment.
  • a winding device is not shown at this point.
  • the threads can be wound together on a winding spindle or separately on separate winding spindles.
  • the spinning device 1 is shown schematically in this embodiment by a spinning beam 2 with three juxtaposed on the underside of the spinning beam 2 spinnerets 3.1, 3.2 and 3.3.
  • the spinning beam 2 is usually designed to be heated and has a melt distribution system and one or more spinning pumps.
  • One supplied by a melt source Melt is fed via an inlet 4 to the spinnerets 3.1 to 3.3.
  • a cooling device 5 is provided in order to cool the filament strands extruded by the spinnerets 3.1 to 3.3.
  • the cooling device 5 are assigned in the lower area a plurality of collective yarn guides 6.1 to 6.3, in order to merge the filament bundles produced per spinneret 3.1 to 3.3 in each case to form a thread 21.
  • the threads 21 are withdrawn together as a group of threads from the spinning device 1.
  • the drawing device 8 has a first godet unit 9.1.
  • the godet unit 9.1 is formed by two projecting galette coats 10.1 and 10.2, which are mounted on one side and coupled to a respective drive.
  • the godet coats 10.1 and 10.2 of the godet unit 9.1 are preferably designed to be heated.
  • the godet unit 9.1 is associated with a second godet unit 9.2, which is likewise formed from two godet shells 10.1 and 10.2.
  • the godet coats 10.1 and 10.2 of the godet unit 9.2 are coupled to a drive and preferably also designed to be heated.
  • the godet units 9.1 and 9.2 are usually driven at a differential speed to co-stretch the yarns 21 as a group of yarns.
  • the drawing device 8 follows in the yarn path the crimping device 11, which has a plurality of texturing nozzles 12.1, 12.2 and 12.3 in this embodiment.
  • the texturing nozzles 12.1, 12.2 and 12.3 each have a delivery nozzle 13 and a stuffer box 14. Such texturing nozzles are well known, so that only the function will be explained at this point.
  • the drawn thread is guided into a delivery channel and preferably conveyed by means of a preferably heated fluid hot air as a fiber stream in the adjacent stuffer box 14.
  • the drawn thread is upset to a thread plug, wherein the individual filaments of the thread create in loops and arcs on the surface of the yarn plug and are compressed by the air flow.
  • the compression chamber 14 includes a plurality of openings in the upper region in order to be able to remove the air flow used to convey the thread.
  • the thread stopper formed in the stuffer box 14 is led out on an outlet side and deposited on the circumference of a downstream cooling drum 15.
  • the cooling drum 15 is preferably connected to a suction device, by which a suction flow is generated from outside to inside through the jacket of the cooling drum 15.
  • the cooling drum 15 has an air-permeable jacket.
  • the cooling drum 15 is assigned to a drain side a stationary suction device 23, which is shown in this embodiment by a suction nozzle 24 and a vacuum source 25.
  • the suction device 23 is provided to facilitate the application of the yarn plug at the periphery of the cooling drum at the beginning of a process.
  • the function of the suction device 23 and the application of the yarn plug 22.1, 22.2 and 22.3 on the circumference of the cooling drum 15 will be explained in more detail below.
  • the crimping device 11 is assigned an aftertreatment device 16, by means of which the yarn plugs 22.1, 22.2 and 22.3 are respectively dissolved into a crimped yarn 26.1, 26.2 and 26.3 and through which an aftertreatment especially a thermal aftertreatment under low tensile stress is eliminated. leads.
  • the aftertreatment device 16 has two godet units 17.1 and 17.2, which each have a driven godet casing 18 and a deflection roller 19.
  • the gilet jacket 18 and the deflection roller 19 are arranged cantilevered, the godet jacket 18 being coupled to a drive.
  • a plurality of swirling aggregates 20.1, 20.2 and 20.3 are arranged between the godet units 17.1 and 17.2 .
  • the Verwirbelungsaggregate 20.1, 20.2 and 20.3 also have between them the Köselungsabstand K, so that the threads are in an isolated leadership with multiple wraps on the godet unit 17.1 parallel in a straight line run guidable.
  • the crimped threads 26.1, 26.2 and 26.3 during the dissolution of the yarn plugs 22.1, 22.2 and 22.3 in the straight yarn path on the circumference of the cooling drum 15 are deducted.
  • the threads are 26.1 to 26.3 taken in parallel run by the godet unit 17.2 and also isolated with multiple wraps side by side on the godet 18 and the guide roller 19 out.
  • the crimped threads are usually wound into coils, wherein the coils can be wound together on a winding spindle or separately on a plurality of winding spindles.
  • FIG. 1 In the exemplary embodiment of the device according to the invention shown in FIG. 1, several threads are spun parallel to one another from a plurality of spinnerets 3.1 to 3.3 by the spinning device 1.
  • the spinnerets 3.1 to 3.3 of the spinning device 1 are each held with a spinning distance from one another to the spinning beam 2.
  • the spun threads 21 are withdrawn together as a group of threads through the godet unit 9.1 of the drawing device 8.
  • the threads are brought together by a squirrel guide 7 to a treatment distance which is smaller than the spinning distance between the adjacent spinnerets 3.1 and 3.2.
  • the crimping distance K is already set as the treatment distance, so that the spun threads are stretched parallel to one another as a group of threads through the sprocket units 9.1 and 9.2 and fed to the crimping device 11.
  • the texturing nozzles 12.1 to 12.3 are arranged with the crimping distance K relative to each other so that the yarn plugs 22.1 to 22.3 emerging on an outlet side of the texturing nozzles 12.1 to 12.3 are separated from one another at the circumference of the cooling drum 15 by the crimping distance.
  • the crimping distance K is selected such that each of the yarn plugs 22.1 to 22.3 can be guided with several wraps around the circumference of the cooling drum 15. In the exemplary embodiment illustrated in FIG. 1, two wrappings of the thread plugs 22.1 to 22.3 on the circumference of the cooling drum 15 are shown as an example.
  • the crimped threads 26.1 to 26.3 are separated with several wraps on the gas withdrawn letteaji 17.1 and supplied to the subsequent Verwirbe- aggregating units 20.1 to 20.3.
  • the method according to the invention and the device according to the invention according to the exemplary embodiment according to FIG. 1 are characterized in particular by the fact that the threads spun as a group of threads are treated, crimped and post-treated under essentially the same conditions. Particularly in the case of crimping, an intensive thermal treatment can be carried out on each of the threads, in which the upset thread can be guided on the circumference of the cooling drum 15 with a plurality of wraps.
  • a suction device 23 with a suction nozzle 24 and a vacuum source 25 is provided on the outlet side of the cooling drum 15.
  • the function of the illustrated suction device is explained in more detail in the following figures 2.1 to 2.3.
  • FIGS. 2.1 to 2.3 a section of the exemplary embodiment from FIG. 1 is shown schematically in each case.
  • the illustrated devices are identical to the aforementioned embodiment.
  • the crimping distance is at the same time the treatment distance during stretching and during the aftertreatment of the threads.
  • the invention is not limited to such a thread guide in a melt spinning process.
  • Fig. 3 for this purpose, a further embodiment of the device according to the invention is shown, as they would be executable, for example, in a melt spinning process.
  • only the godet unit 9.2 and the subsequent crimping 11 is shown schematically.
  • the godet unit is also in this embodiment by two driven godet coats
  • the crimping device 11 has two texturing nozzles 12.1 and 12.2 to receive and curl two spun yarns 21.
  • the crimping distance K between the texturing nozzles 12.1 and 12.2 can be selected such that the adjacent circumference slings of the adjacent yarn plug 22.1 and 22.2 without substantial distance directly next to each other on the circumference of the cooling drum 15 are performed. Alternatively, however, it is also possible to maintain a distance between adjacent wrappings of the thread plugs 22.1 and 22.2.
  • the feeding of the spun threads in this embodiment takes place independently of the crimping distance K.
  • the threads can be guided on the godet unit 9.2 and during the stretching with a substantially smaller treatment distance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un procédé et un dispositif servant à filer à chaud et à crêper plusieurs fils. Les fils sont filés en parallèle dans un système de filage à travers plusieurs filières et, après le tirage, amenés à un système de crêpage. Le système de crêpage comprend plusieurs filières de texturation destinées à former chacune un bouchon de fils à partir de chacun des fils filés, lesquels bouchons sont ensuite déposés conjointement à la périphérie d'un tambour de refroidissement afin d'être dissociés et d'obtenir respectivement un fil crêpé. L'invention vise à permettre une dissociation fiable des bouchons de fils dans le cas d'un enroulement multiple. A cet effet, les bouchons de fil à la périphérie des tambours de refroidissement sont guidés un à un les uns à côté des autres avec respectivement plusieurs enroulements. Les filières de texturation disposées en amont du tambour de refroidissement sont maintenues les unes à côté des autres selon un certain écart de crêpage.
PCT/EP2015/061100 2014-05-30 2015-05-20 Procédé et dispositif servant à filer à chaud et à crêper plusieurs fils WO2015181019A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15725559.7A EP3149231A1 (fr) 2014-05-30 2015-05-20 Procédé et dispositif servant à filer à chaud et à crêper plusieurs fils

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014007892.2A DE102014007892A1 (de) 2014-05-30 2014-05-30 Verfahren und Vorrichtung zum Schmelzspinnen und Kräuseln mehrerer Fäden
DE102014007892.2 2014-05-30

Publications (1)

Publication Number Publication Date
WO2015181019A1 true WO2015181019A1 (fr) 2015-12-03

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PCT/EP2015/061100 WO2015181019A1 (fr) 2014-05-30 2015-05-20 Procédé et dispositif servant à filer à chaud et à crêper plusieurs fils

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EP (1) EP3149231A1 (fr)
DE (1) DE102014007892A1 (fr)
WO (1) WO2015181019A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018096442A1 (fr) * 2016-11-22 2018-05-31 Nv Michel Van De Wiele Dispositif et procédé de fabrication de fil textile frisé et tambour de refroidissement destiné à un tel dispositif
CN108570738A (zh) * 2018-05-03 2018-09-25 湖州新爱品纺织有限公司 一种加弹机用冷却设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2632082A1 (de) 1976-07-16 1978-01-26 Barmag Barmer Maschf Verfahren und vorrichtung zur thermischen behandlung von faeden
US4908919A (en) * 1987-01-16 1990-03-20 James Mackie & Sons Limited Production of textured yarn
US20060010667A1 (en) * 2003-01-24 2006-01-19 Saurer Gmbh & Co. Kg Apparatus and method for texturing a plurality of blended synthetic multifilament yarns

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2632082A1 (de) 1976-07-16 1978-01-26 Barmag Barmer Maschf Verfahren und vorrichtung zur thermischen behandlung von faeden
US4908919A (en) * 1987-01-16 1990-03-20 James Mackie & Sons Limited Production of textured yarn
US20060010667A1 (en) * 2003-01-24 2006-01-19 Saurer Gmbh & Co. Kg Apparatus and method for texturing a plurality of blended synthetic multifilament yarns

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018096442A1 (fr) * 2016-11-22 2018-05-31 Nv Michel Van De Wiele Dispositif et procédé de fabrication de fil textile frisé et tambour de refroidissement destiné à un tel dispositif
BE1024740B1 (nl) * 2016-11-22 2018-06-18 Wiele Michel Van De Nv Inrichting en werkwijze voor het vervaardigen van gekroesd textielgaren en koeltrommel voor een dergelijke inrichting
CN109963969A (zh) * 2016-11-22 2019-07-02 米歇尔.范德威尔公司 用于制造卷曲纺织纱线的装置和方法及用于该装置的冷却鼓
CN109963969B (zh) * 2016-11-22 2022-03-08 范德威尔有限公司 用于制造卷曲纺织纱线的装置和方法及用于该装置的冷却鼓
US11598030B2 (en) 2016-11-22 2023-03-07 Nv Michel Van De Wiele Device and method for manufacturing crimped textile yarn and cooling drum for such a device
CN108570738A (zh) * 2018-05-03 2018-09-25 湖州新爱品纺织有限公司 一种加弹机用冷却设备

Also Published As

Publication number Publication date
DE102014007892A1 (de) 2015-12-03
EP3149231A1 (fr) 2017-04-05

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