EP3048191A1 - Filiere d'un metier a tisser a jet d'air et son procede d'ouverture - Google Patents

Filiere d'un metier a tisser a jet d'air et son procede d'ouverture Download PDF

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Publication number
EP3048191A1
EP3048191A1 EP16151063.1A EP16151063A EP3048191A1 EP 3048191 A1 EP3048191 A1 EP 3048191A1 EP 16151063 A EP16151063 A EP 16151063A EP 3048191 A1 EP3048191 A1 EP 3048191A1
Authority
EP
European Patent Office
Prior art keywords
spinneret
housing
guide
inlet opening
vortex chamber
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.)
Granted
Application number
EP16151063.1A
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German (de)
English (en)
Other versions
EP3048191B1 (fr
Inventor
Gerd Stahlecker
Markus Kübler
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP3048191A1 publication Critical patent/EP3048191A1/fr
Application granted granted Critical
Publication of EP3048191B1 publication Critical patent/EP3048191B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-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
    • D01H4/02—Open-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 imparting twist by a fluid, e.g. air vortex

Definitions

  • the present invention relates to a spinneret of an air spinning machine, which serves to produce yarn from a fiber structure by means of an air flow, wherein the spinneret has a, arranged within a housing of the spinneret, vortex chamber with an inlet opening for a fiber strand, wherein the spinneret at least one Partially in the vortex chamber extending Garn avoirselement, wherein the spinneret comprises in the vortex chamber opening air nozzles, can be introduced via the air in the vortex chamber to impart rotation to the fiber strand in the region of an inlet opening of Garn avoirselements, wherein the yarn formation element adjoining the inlet opening Having discharge duct, over which the yarn from the vortex chamber is removable, and wherein the spinneret is mounted such that it, in particular by pivoting, between two positions back and forth.
  • Generic spinnerets are used to produce a yarn from an elongated fiber structure by means of a vortex air flow generated by corresponding air nozzles within the vortex chamber.
  • the outer fibers of the fiber composite are in this case wound in the region of the inlet opening of the generally spindle-shaped Garnsentelements around the inner fibers (core), so that in the result a yarn is formed, which finally withdrawn via the discharge channel from the vortex chamber and with the aid of a winding device to a Sleeve can be wound.
  • the surrounding surrounding the swirl chamber of the spinneret in several parts train.
  • the individual housing sections are in this case mounted to be movable relative to one another, so that the housing can be opened by moving one or more housing sections. After opening, the interior of the spinneret is accessible and can be freed of deposits (avivage, honeydew, etc.).
  • the spinneret is characterized in that it comprises a housing with at least two housing sections delimiting the vortex chamber to the outside, wherein at least one of the housing sections is supported by means of a guide such that it is displaceable relative to a further housing section. If the housing section mounted with the aid of the guide is then displaced after pivoting of the spinneret relative to one or more further housing sections, the housing is moved from a closed position (which is to be assumed during yarn production) into an open position, in which at least the inlet opening exhibiting section of the Garn Strukturselements is accessible and cleanable for an operator.
  • the displacement of the mounted with the help of the guide housing portion relative to one or more housing sections in this case takes place along said guide, which is preferably designed like a rail.
  • the housing can of course also comprise a plurality of slidingly mounted housing sections, which are mounted displaceably relative to one or more further housing sections.
  • a displaceable housing portion is present, which is displaceable relative to a further housing portion, which is only to be understood as an example and the features described can be realized even with a spinneret with more than two housing sections.
  • the displacement of the movable housing section should take place along a guide, which comprises a guide track, in or on which a corresponding counterpart of the displaceable housing section is mounted in a form-fitting manner.
  • one or more stops should be present, which limit the movement of the respectively displaceable housing section in the region of desired end points of the displacement.
  • the spinneret as a whole is pivotable ⁇ by an angle which has an amount of 30 ° to 90 °, preferably from 40 ° to 80 °.
  • Such pivoting is particularly advantageous when a coil-side yarn end to be performed during a piecing against the actual spinning direction through the spinneret.
  • the yarn end is blown in this case by an air flow through the outlet opening of the discharge channel in this and / or sucked.
  • the yarn end is moved out through the extraction channel, through the inlet opening of the yarn formation element and finally through the inlet opening of the vortex chamber.
  • the spinneret comprises mechanical, pneumatic, hydraulic, magnetic and / or electromagnetically acting means with the aid of which the housing can be transferred from its closed position into its open position and / or vice versa.
  • one or more pneumatic cylinders could be used, by means of which the displaceable housing section is displaceable along the guide.
  • at least one spring is present, with the aid of which the displaceable housing section is pressed against a further housing section, so that the housing is held in its closed position by means of the spring until the displaceable housing with the aid of a pneumatic cylinder, an electromagnet or any other suitable means against the spring force of the spring is moved to transfer the housing in its open position.
  • the guide has one or more at least partially rectilinear and serving the leadership of one of the housing sections guide portions.
  • the guide is, for example, a linear guide or a guide which is formed at least in sections as a linear guide.
  • the rectilinear guide section may for example run parallel to a central axis of the discharge channel.
  • the guide or at least one guide section of the same part of the spinneret or part be a spinneret carrying the carrier of the air-spinning machine.
  • the guide may comprise a guide portion which engages around the guided portion of the displaceable housing portion in order to ensure a low-backlash guide.
  • the withdrawal channel has a central axis, wherein the extension of the central axis extends outside the inlet opening of the vortex chamber, when the housing has its closed position. This ensures that the rotation of the fiber composite produced in the region of the yarn formation element does not propagate outwards counter to the spinning direction (this would result in a negative impairment or even an interruption of the yarn production). In other words, the lateral offset of the discharge duct and inlet opening acts during the yarn production as a twist stop.
  • the yarn end can thus be particularly easily returned in the open position of the housing against the spinning direction through the spinneret, for this purpose only an air flow must be generated within the discharge channel, which is directed against the spinning direction and thus into the inlet opening of the vortex chamber.
  • the spinneret preferably has one or more injection nozzles, which open obliquely and counter to the spinning direction in the discharge channel and are in communication with a compressed air supply.
  • the guide has one or more at least partially curved and extending serving the leadership of one of the housing sections guide portions.
  • the displaceable housing portion can be tilted during its displacement relative to the further housing portion, so that the extension of the central axis of the discharge channel extends after the displacement of the bearing mounted by means of the guide housing portion in the inlet opening of the vortex chamber.
  • the housing section having the inlet opening of the swirl chamber is arranged in a first housing section and the yarn formation element is arranged in a second housing section, wherein one of the housing sections is displaceably mounted relative to the other is.
  • the housing has at least a first housing portion and a second housing portion, wherein the first housing portion along the guide is displaceable, and wherein the guide is rigidly connected to the second housing portion. A relative movement between the guide and the second housing portion is thereby safely avoided.
  • the guide is part of the second housing portion, so that a separate attachment of the guide can be omitted on the second housing portion.
  • the pivotable housing portion can be pivoted as part of the spinneret.
  • it can be pivoted in addition to the said pivoting with respect to a further housing portion, so that two independent pivoting movements are possible.
  • it is in the case of two-fold pivotable housing portion to those housing portion which is also displaceable along the guide.
  • the displaceable housing section starting from the spinning position of the spinneret, can first be pivoted as part of the spinneret, subsequently displaced along the guide and finally pivoted relative to a further housing section.
  • the displaceable housing section can therefore occupy three positions, wherein the last-mentioned position permits particularly good accessibility of the yarn-forming element.
  • the spinneret are pivotably mounted about a first pivot axis and the pivotable housing portion about a second pivot axis, wherein the first pivot axis is arranged spaced in a direction perpendicular to the first pivot axis direction of the second pivot axis.
  • the position and the individual directions of movement of the housing section which can be pivoted twice can be adapted particularly easily to the given space conditions in the air-spinning machine.
  • the two pivot axes are parallel to each other.
  • the pivotable housing section is mounted on a carriage and can be pivoted relative thereto, the carriage in turn guided by means of the guide and being displaceable along the guide.
  • the carriage preferably comprises a pivot axis to which the pivotable housing portion by means of a pivot pin or similar means is attached (alternatively, of course, the pivotable housing portion may include a pivot axis which is mounted on a pivot pin o. ⁇ . Of the carriage).
  • the spinneret comprises means which, when the spinneret is pivoted, displace the guide along the guide Cause housing section.
  • the displaceable housing section can be connected, for example, to a linkage or a cable, which is coupled to a further housing section or a carrier section of the spinneret such that the displaceable housing section and at least one further housing section automatically move apart if the spinneret is manually moved or by means of automatically actuated means (pneumatic cylinder, etc.) is pivoted.
  • the method according to the invention for opening a spinneret of an air-spinning machine is characterized in that the spinneret is moved, preferably pivoted, and that in the course of this movement or subsequently an opening of the housing takes place in that one of the housing sections is displaced relative to a further housing section, wherein the displacement takes place in such a way that after the displacement of the corresponding housing section, at least the section of the yarn formation element having the inlet opening is accessible and cleanable by an operator.
  • At least one housing section is therefore initially pivoted as part of the spinneret during the opening process and then displaced along a guide (wherein the spinneret or its components can be designed according to the preceding or following description).
  • the displacement of the displaceably mounted housing section takes place along an at least partially curved guide track (reference being made to the above description with regard to the relevant advantages).
  • a pivoting of a housing section relative to a further housing section takes place in order to further improve the accessibility of said section of the yarn-forming element.
  • the housing section is pivoted, which has been previously moved. This housing section is thus pivoted during the opening of the spinneret about a first pivot axis, also shifted and additionally pivoted about a second pivot axis.
  • FIG. 1 shows a section of a spinning station of an air-jet spinning machine according to the invention (wherein the air-spinning machine of course a plurality of, preferably adjacent to each other, spinning stations can have).
  • the spinning station can comprise a drafting unit 20 with a plurality of drafting rollers 19 (which can be partially looped around with a belt 21), which is supplied with a fiber structure 3, for example in the form of a relined conveyor belt.
  • the spinning station shown comprises a in FIG. 2 spinneret 1 shown in detail with an internal vortex chamber 5, in which the fiber structure 3 or at least a portion of the fibers of the fiber composite 3 is provided after passing through an inlet opening 6 of the vortex chamber 5 with a rotation.
  • the spinning station may comprise a pair of delivery rollers downstream of the spinneret 1 and two take-off rollers 23 and a winding device connected downstream of the take-off roller pair for winding the yarn 2 leaving the spinning station onto a sleeve 24.
  • the spinning station according to the invention need not necessarily have a drafting system 20. Also, the pair of take-off rollers is not absolutely necessary.
  • the spinning station shown generally works by an air spinning process.
  • the fiber structure 3 is guided into the swirl chamber 5 of the spinneret 1 via a fiber guide element 25 having the inlet opening 6. There it receives a rotation, d. H. at least a portion of the free fiber ends of the fiber composite 3 is detected by a vortex air flow, which is generated by correspondingly arranged in a surrounding the vortex chamber 5 housing 8 air nozzles (the air nozzles 8 can communicate via an air channel 26, in turn, with a compressed air line 27 is connected, which is supplied via a compressed air supply with compressed air).
  • a part of the fibers is in this case pulled out of the fiber structure 3 at least a little bit and wound around the front region of a projecting into the swirl chamber 5 Garn avoirselements 7.
  • Garn Siegselements 7.
  • the fiber structure 3 through an inlet opening 9 of the Garnsentelements 7 via a arranged within the yarn formation element 7 exhaust duct
  • the free fiber ends are drawn in the direction of the inlet opening 9 from the vortex chamber 5 and finally via an outlet opening 22 and loop as so-called Umwindefasern to the centrally extending core fibers resulting in a desired rotation having yarn.
  • the compressed air introduced via the air nozzles 8 finally leaves the spinneret 1 via the outlet channel 10 as well as any air outlet 29 which may be connected to a vacuum source if required.
  • the yarn 2 produced can basically be any fiber structure 3, which is characterized in that an external part of the fibers (so-called capillary fibers) around an inner, preferably untwisted or if necessary also rotated Part of the fibers, is wrapped around to give the yarn 2, the desired strength.
  • an air-spinning machine with the aid of which so-called roving can be produced.
  • Roving is a yarn 2 with a relatively small proportion of wraparound fibers, or a yarn 2 in which the wraparound fibers are wound relatively loosely around the inner core, so that the yarn 2 remains deformable. This is crucial if the produced yarn 2 on a subsequent textile machine (for example, a ring spinning machine) is to be distorted again with the help of a drafting system 20 or must, in order to be further processed accordingly.
  • the air nozzles 8 it should also be mentioned as a precautionary measure at this point that they should generally be oriented so that the exiting air jets are rectified in order to jointly produce a rectified air flow with a sense of rotation.
  • the individual air nozzles 8 are arranged in this case rotationally symmetrical to one another and open tangentially into the swirl chamber 5.
  • FIG. 2 can be seen that the Garn Strukturselement 7 next to the trigger channel 10 may have a further bore in the form of an injection nozzle 28 (although shows FIG. 2 a spinneret 1 with one-piece housing 4; However, the features shown herein may also be realized in the spinnerette 1 according to the invention described below).
  • an injection nozzle 28 can during a piecing phase air against the spinning direction (ie based on FIG. 2 in the direction of the fiber guide element 25) are introduced to guide a sleeve-side yarn end through the discharge channel 10 in the direction of the fiber guide element 25 and therethrough to the outside of the spinneret 1.
  • FIGS. 3 to 5 show a schematic diagram of a spinneret 1 of an air-spinning machine (the drawing unit 20, not shown, would be located above the in FIG. 3 are located spinneret 1; the orientation of the spinneret 1 in FIG. 3 essentially corresponds to the spinneret 1 shown in FIG. 2, ie inlet opening 6 at the top, outlet opening 22 at the bottom).
  • FIG. 5 shows a linear guide with a straight guide section 13
  • the guide 12 has a curved extending guide portion 15, as this example in FIG. 6 is shown.
  • the displacement causes such a configured guide 12 and a slight tilting of the guided housing portion 11 (which can in principle be connected via a correspondingly guided portion 31 with the guide 12 in conjunction).
  • the advantage of such a movement shows the comparison of the two in FIG. 7 shown sectional views of a spinneret. 1
  • FIG. 7 shows the housing 4 in its closed position, in which the central axis 14 of the discharge channel 10 outside the inlet opening 6 is located (the fiber guide element 25 serves as described above in this case twist stop), the said central axis 14 extends in the open position of the housing 4 (right illustration in FIG. 7 In this way, finally, a return of a yarn end of the discharge channel 10 through the inlet opening 6 during the described piecing process is facilitated without the yarn end from the outside through the Inlet opening 6 would have to be sucked.
  • FIGS. 8 and 9 a particularly preferred embodiment of the present invention.
  • the displaceable housing section 11 can be mounted on a slide 18 on or in the guide 12.
  • the carriage 18 can in turn be connected via a second axis of rotation with the displaceable housing section 11, so that the displaceable housing section 11 can pivot not only as part of the spinneret 1 about the first pivot axis 16, but also about the second pivot axis 17.
  • Figures 5 Storage without carriage 18
  • 9 storage on carriage 18
  • angle ⁇ angle by which a first housing section 11 can be pivoted about a second pivoting axis 17 relative to a further housing section 11
  • angle ⁇ angle, in FIG the spinneret 1 as a whole can be pivoted about the first pivot axis 16
  • pivoting of the spinneret 1 or the displacement and / or pivoting of individual housing sections 11 can be done manually or by means of appropriate means.
  • a spring element 32 is shown, which presses the displaceable housing section 11 in the direction of the further housing section 11, as soon as no, for example generated by means of a pneumatic cylinder, opposite force acts on the displaceable housing section 11.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP16151063.1A 2015-01-21 2016-01-13 Buse d'un metier a filer a jet d'air et son procede d'ouverture Active EP3048191B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015100825.4A DE102015100825A1 (de) 2015-01-21 2015-01-21 Spinndüse einer Luftspinnmaschine sowie Verfahren zum Öffnen derselben

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EP3048191A1 true EP3048191A1 (fr) 2016-07-27
EP3048191B1 EP3048191B1 (fr) 2019-06-05

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EP16151063.1A Active EP3048191B1 (fr) 2015-01-21 2016-01-13 Buse d'un metier a filer a jet d'air et son procede d'ouverture

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EP (1) EP3048191B1 (fr)
JP (1) JP2016132855A (fr)
CN (1) CN105803589B (fr)
DE (1) DE102015100825A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3168340A4 (fr) * 2014-07-10 2018-03-28 Murata Machinery, Ltd. Dispositif de filage à jet d'air et machine à filer
WO2018087054A1 (fr) * 2016-11-08 2018-05-17 Maschinenfabrik Rieter Ag Filière pour machine à filer à jet d'air et procédé de fonctionnement de celle-ci
EP3835467A1 (fr) 2019-12-09 2021-06-16 Saurer Intelligent Technology AG Procédé de nettoyage d'un dispositif de filage à jet d'air d'un poste de filage, dispositif de filage à jet d'air et unité de formation de fil pour un tel dispositif de filage à jet d'air
EP4015681A1 (fr) * 2020-12-18 2022-06-22 Saurer Intelligent Technology AG Poste de filage doté d'une buse de nettoyage et procédé de nettoyage d'un élément de formation de fil

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017113257A1 (de) 2017-06-16 2018-12-20 Maschinenfabrik Rieter Ag Arbeitsstelle einer Luftspinnmaschine sowie Verfahren zum Öffnen einer Spinndüse
DE102018130826A1 (de) * 2018-12-04 2020-06-04 Maschinenfabrik Rieter Ag Spinndüse sowie Verfahren zum Reinigen derselben
DE102019103271A1 (de) 2019-02-11 2020-08-13 Maschinenfabrik Rieter Ag Spinndüse für eine Luftspinnmaschine sowie Verfahren zum Öffnen einer solchen
DE102019116278A1 (de) * 2019-06-14 2020-12-17 Saurer Intelligent Technology AG Textilmaschine
DE102020108499A1 (de) 2020-03-27 2021-09-30 Maschinenfabrik Rieter Ag Spinnstelle für eine Luftspinnmaschine, Luftspinnmaschine sowie Verfahren zum Betreiben einer Luftspinnmaschine

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EP1217109A2 (fr) * 2000-12-22 2002-06-26 Maschinenfabrik Rieter Ag Dispositif de filage
EP1655393A2 (fr) * 2004-11-05 2006-05-10 Murata Kikai Kabushiki Kaisha Métier à filer et procédé pour détecter des accumulations de fibres
EP2573220A2 (fr) 2011-09-21 2013-03-27 Murata Machinery, Ltd. Unité de filature et fileuse

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JPH07122167B2 (ja) * 1992-03-16 1995-12-25 村田機械株式会社 紡績装置の糸継ぎ方法
JPH07126933A (ja) * 1993-10-29 1995-05-16 Murata Mach Ltd スピンドルユニット移動装置
JP2616428B2 (ja) 1994-01-25 1997-06-04 村田機械株式会社 紡績機の糸継ぎ方法
JP2011038210A (ja) * 2009-08-11 2011-02-24 Murata Machinery Ltd 空気紡績装置及びこの空気紡績装置を備える紡績機
JP2013002023A (ja) * 2011-06-20 2013-01-07 Murata Mach Ltd 中空ガイド軸体ユニット、空気紡績装置及び紡績機
JP2013049938A (ja) 2011-08-31 2013-03-14 Murata Mach Ltd 紡績機
CN106661778A (zh) * 2014-07-10 2017-05-10 村田机械株式会社 气流纺纱装置以及纺纱机械

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217109A2 (fr) * 2000-12-22 2002-06-26 Maschinenfabrik Rieter Ag Dispositif de filage
EP1655393A2 (fr) * 2004-11-05 2006-05-10 Murata Kikai Kabushiki Kaisha Métier à filer et procédé pour détecter des accumulations de fibres
EP2573220A2 (fr) 2011-09-21 2013-03-27 Murata Machinery, Ltd. Unité de filature et fileuse

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3168340A4 (fr) * 2014-07-10 2018-03-28 Murata Machinery, Ltd. Dispositif de filage à jet d'air et machine à filer
WO2018087054A1 (fr) * 2016-11-08 2018-05-17 Maschinenfabrik Rieter Ag Filière pour machine à filer à jet d'air et procédé de fonctionnement de celle-ci
CN109891012A (zh) * 2016-11-08 2019-06-14 里特机械公司 用于喷气纺纱机的纺纱喷嘴以及操作这种纺纱喷嘴的方法
EP3835467A1 (fr) 2019-12-09 2021-06-16 Saurer Intelligent Technology AG Procédé de nettoyage d'un dispositif de filage à jet d'air d'un poste de filage, dispositif de filage à jet d'air et unité de formation de fil pour un tel dispositif de filage à jet d'air
WO2021116083A1 (fr) 2019-12-09 2021-06-17 Saurer Intelligent Technology AG Procédé de nettoyage d'un dispositif de filage à l'air d'un poste de filage, un tel dispositif de filage à l'air et une unité de formation de fil pour un tel dispositif de filage à l'air
US12054855B2 (en) 2019-12-09 2024-08-06 Saurer Intelligent Technology AG Method for cleaning an air jet spinning device of a spinning station, an air jet spinning device of this type and a thread-forming unit for an air jet spinning device of this type
EP4015681A1 (fr) * 2020-12-18 2022-06-22 Saurer Intelligent Technology AG Poste de filage doté d'une buse de nettoyage et procédé de nettoyage d'un élément de formation de fil
US11834759B2 (en) 2020-12-18 2023-12-05 Saurer Intelligent Technology AG Spinning position with a cleaning nozzle and method of cleaning a yarn forming element

Also Published As

Publication number Publication date
CN105803589B (zh) 2020-05-22
EP3048191B1 (fr) 2019-06-05
DE102015100825A1 (de) 2016-07-21
JP2016132855A (ja) 2016-07-25
CN105803589A (zh) 2016-07-27

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