EP3048191A1 - Spinning nozzle of an air vortex spinning machine and method of opening same - Google Patents
Spinning nozzle of an air vortex spinning machine and method of opening same Download PDFInfo
- 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
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- 238000000034 method Methods 0.000 title claims description 9
- 238000009987 spinning Methods 0.000 title abstract description 32
- 238000007382 vortex spinning Methods 0.000 title 1
- 239000000835 fiber Substances 0.000 claims abstract description 47
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000010042 air jet spinning Methods 0.000 claims description 3
- 238000004091 panning Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 235000015001 Cucumis melo var inodorus Nutrition 0.000 description 1
- 240000002495 Cucumis melo var. inodorus Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000007378 ring spinning Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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)
Abstract
Die Erfindung betrifft eine Spinndüse (1) einer Luftspinnmaschine, die der Herstellung von Garn (2) aus einem Faserverband (3) mit Hilfe einer Luftströmung dient, wobei die Spinndüse (1) eine, innerhalb eines Gehäuses (4) der Spinndüse (1) angeordnete, Wirbelkammer (5) mit einer Einlauföffnung (6) für einen Faserverband (3) aufweist, wobei die Spinndüse (1) ein sich zumindest teilweise in die Wirbelkammer (5) erstreckendes Garnbildungselement (7) aufweist, wobei die Spinndüse (1) in die Wirbelkammer (5) mündende Luftdüsen (8) umfasst, über die Luft in die Wirbelkammer (5) einbringbar ist, um dem Faserverband (3) im Bereich einer Einlassöffnung (9) des Garnbildungselements (7) eine Drehung zu erteilen, wobei das Garnbildungselement (7) einen sich an die Einlassöffnung (9) anschließenden Abzugskanal (10) aufweist, über den das Garn (2) aus der Wirbelkammer (5) abziehbar ist, und wobei die Spinndüse (1) derart gelagert ist, dass sie, insbesondere durch Verschwenken, zwischen wenigstens zwei Stellungen hinund herbewegbar ist, dass das Gehäuse (4) der Spinndüse (1) wenigstens zwei die Wirbelkammer (5) nach außen hin begrenzende Gehäuseabschnitte (11) umfasst. Erfindungsgemäß wird vorgeschlagen, dass zumindest einer der Gehäuseabschnitte (11) derart mit Hilfe einer Führung (12) gelagert ist, dass er relativ zu einem weiteren Gehäuseabschnitt (11) verschiebbar ist, und wobei das Gehäuse (4) durch Verschieben des mit Hilfe der Führung (12) gelagerten Gehäuseabschnitts (11) von einer Schließstellung in eine Offenstellung überführbar ist, in der zumindest der die Einlassöffnung (9) aufweisende Abschnitt des Garnbildungselements (7) für einen Bediener zugänglich und reinigbar ist.The invention relates to a spinneret (1) of an air-spinning machine, which is used to produce yarn (2) from a fiber structure (3) by means of an air flow, wherein the spinneret (1) comprises a spinneret (1) within a housing (4). arranged, vortex chamber (5) having an inlet opening (6) for a fiber structure (3), wherein the spinneret (1) at least partially in the vortex chamber (5) extending Garnbildungselement (7), wherein the spinneret (1) in the vortex chamber (5) opening air nozzles (8), via the air in the vortex chamber (5) can be introduced to the fiber strand (3) in the region of an inlet opening (9) of Garnbildungselements (7) to give a rotation, wherein the Garnbildungselement (7) has a discharge channel (10) adjoining the inlet opening (9), via which the yarn (2) can be pulled off the vortex chamber (5), and wherein the spinneret (1) is mounted such that it, in particular through Panning, between hen at least two positions is moved back and forth, that the housing (4) of the spinneret (1) at least two the vortex chamber (5) outwardly bounding housing portions (11). According to the invention, it is proposed that at least one of the housing sections (11) is mounted with the aid of a guide (12) such that it is displaceable relative to a further housing section (11), and wherein the housing (4) is displaced by means of the guide (12) mounted housing portion (11) is convertible from a closed position to an open position, in which at least the the inlet opening (9) having portion of Garnbildungselements (7) is accessible and cleanable for an operator.
Description
Die vorliegende Erfindung betrifft eine Spinndüse einer Luftspinnmaschine, die der Herstellung von Garn aus einem Faserverband mit Hilfe einer Luftströmung dient, wobei die Spinndüse eine, innerhalb eines Gehäuses der Spinndüse angeordnete, Wirbelkammer mit einer Einlauföffnung für einen Faserverband aufweist, wobei die Spinndüse ein sich zumindest teilweise in die Wirbelkammer erstreckendes Garnbildungselement aufweist, wobei die Spinndüse in die Wirbelkammer mündende Luftdüsen umfasst, über die Luft in die Wirbelkammer einbringbar ist, um dem Faserverband im Bereich einer Einlassöffnung des Garnbildungselements eine Drehung zu erteilen, wobei das Garnbildungselement einen sich an die Einlassöffnung anschließenden Abzugskanal aufweist, über den das Garn aus der Wirbelkammer abziehbar ist, und wobei die Spinndüse derart gelagert ist, dass sie, insbesondere durch Verschwenken, zwischen zwei Stellungen hin- und herbewegbar ist.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 Garnbildungselement, 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 Garnbildungselements, 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.
Gattungsgemäße Spinndüsen dienen der Herstellung eines Garns aus einem länglichen Faserverband mit Hilfe einer durch entsprechende Luftdüsen innerhalb der Wirbelkammer erzeugten Wirbelluftströmung. Die äußeren Fasern des Faserverbands werden hierbei im Bereich der Einlassöffnung des in der Regel spindelförmigen Garnbildungselements um die innenliegenden Fasern (Kern) gewunden, so dass im Ergebnis ein Garn entsteht, welches schließlich über den Abzugskanal aus der Wirbelkammer abgezogen und mit Hilfe einer Spulvorrichtung auf eine Hülse aufgespult werden kann.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 Garnbildelements 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.
Um das Innere der Spinndüse, insbesondere das Garnbildungselement, manuell oder auch mit Hilfe automatischer Handhabungsvorrichtungen nach einem Stopp der Garnherstellung reinigen zu können, gibt es bereits Vorschläge, das die Wirbelkammer umgebende Gehäuse der Spinndüse mehrteilig auszubilden. Die einzelnen Gehäuseabschnitte sind hierbei relativ zueinander beweglich gelagert, so dass das Gehäuse durch Bewegen eines oder mehrerer Gehäuseabschnitte geöffnet werden kann. Nach dem Öffnen ist der Innenraum der Spinndüse zugänglich und kann von Ablagerungen (Avivage, Honigtau, etc.) befreit werden.To be able to clean the interior of the spinneret, in particular the Garnbildungselement, manually or with the help of automatic handling devices after a stop of the yarn production, there are already proposals, 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.).
Da die bekannten Öffnungsmechanismen (siehe z. B. die
Diese Aufgabe wird gelöst durch eine Spinndüse sowie ein Verfahren mit den Merkmalen der unabhängigen Patentansprüche.This object is achieved by a spinneret and a method having the features of the independent claims.
Erfindungsgemäß zeichnet sich die Spinndüse dadurch aus, dass sie ein Gehäuse mit wenigstens zwei die Wirbelkammer nach außen hin begrenzenden Gehäuseabschnitten umfasst, wobei zumindest einer der Gehäuseabschnitte derart mit Hilfe einer Führung gelagert ist, dass er relativ zu einem weiteren Gehäuseabschnitt verschiebbar ist. Wird nun der mit Hilfe der Führung gelagerte Gehäuseabschnitt nach Verschwenken der Spinndüse gegenüber einem oder mehreren weiteren Gehäuseabschnitt(en) verschoben, so wird das Gehäuse von einer Schließstellung (die während der Garnherstellung einzunehmen ist) in eine Offenstellung überführt, in der zumindest der die Einlassöffnung aufweisende Abschnitt des Garnbildungselements für einen Bediener zugänglich und reinigbar ist. Die Verschiebung des mit Hilfe der Führung gelagerten Gehäuseabschnitts gegenüber einem oder weiteren Gehäuseabschnitten erfolgt hierbei entlang der genannten Führung, die vorzugsweise schienenartig ausgeführt ist.According to the invention, 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 Garnbildungselements 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.
An dieser Stelle sei darauf hingewiesen, dass das Gehäuse selbstverständlich auch mehrere verschieblich gelagerte Gehäuseabschnitte umfassen kann, die gegenüber einem oder mehreren weiteren Gehäuseabschnitten verschiebbar gelagert sind. Im Folgenden wird jedoch vorrangig eine Lösung beschrieben, bei der ein verschiebbarer Gehäuseabschnitt vorhanden ist, der gegenüber einem weiteren Gehäuseabschnitt verschiebbar ist, wobei dies nur beispielhaft zu verstehen ist und die beschriebenen Merkmale auch bei einer Spinndüse mit mehr als zwei Gehäuseabschnitten verwirklicht sein können.It should be noted at this point that 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. In the following, however, a solution is primarily described in which 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.
In jedem Fall sollte das Verschieben des beweglichen Gehäuseabschnitts entlang einer Führung erfolgen, die eine Führungsbahn umfasst, in bzw. auf der ein korrespondierendes Gegenstück des verschiebbaren Gehäuseabschnitts formschlüssig montiert ist. Zudem sollten ein oder mehrere Anschläge vorhanden sein, die die Bewegung des jeweils verschiebbaren Gehäuseabschnitts im Bereich gewünschter Endpunkte der Verschiebung begrenzen.In any case, 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. In addition, 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.
Ebenso bringt es Vorteile mit sich, wenn die Spinndüse als Ganzes um einen Winkel α verschwenkbar ist, der einen Betrag von 30° bis 90°, vorzugsweise von 40° bis 80°, aufweist. Ein derartiges Verschwenken ist insbesondere dann von Vorteil, wenn ein spulenseitiges Garnende während eines Anspinnvorgangs entgegen der eigentlichen Spinnrichtung durch die Spinndüse geführt werden soll. Das Garnende wird in diesem Fall durch eine Luftströmung durch die Auslassöffnung des Abzugskanals in diesen eingeblasen und/oder eingesaugt. Im weiteren Verlauf wird das Garnende durch den Abzugskanal, durch die Einlassöffnung des Garnbildungselements und schließlich durch die Einlauföffnung der Wirbelkammer nach außen bewegt. Hierbei tritt über die Einlauföffnung der Wirbelkammer neben dem Garnende auch eine nicht zu vernachlässigende Luftmenge aus der Spinndüse aus, die notwendig ist, um die genannte Bewegung des Garnendes zu realisieren. Würde diese Luftmenge nun auf das Ende des Faserverbands treffen, der sich in der Regel nach einer Unterbrechung der Garnherstellung in einem der Spinndüse vorgelagerten Streckwerk befindet, so würde dies zu einer negativen Beeinträchtigung des Faserverbands führen. Um dies zu vermeiden, ist die erfindungsgemäße Spinndüse schließlich um den genannten Betrag verschwenkbar. Wird nun nach dem Verschwenken Luft durch die Einlauföffnung der Spinndüse nach außen geblasen, um das Garnende entgegen der Spinnrichtung durch die Spinndüse zu bewegen, so trifft diese Luft nicht auf den sich im Streckwerk befindlichen Faserverband. Vielmehr passiert er das Streckwerk seitlich, so dass eine Beeinflussung der Faserverbandeigenschaften ausgeschlossen werden kann.Likewise, it brings advantages when the spinneret as a whole is pivotable α 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. In the further course, 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. In this case, a non-negligible amount of air from the spinneret, which is necessary to realize the said movement of the yarn end occurs via the inlet opening of the vortex chamber in addition to the yarn end. Would this amount of air now hit the end of the fiber strand, which is usually after an interruption of yarn production in one of Spinneret upstream drafting, this would lead to a negative impact on the fiber structure. To avoid this, the spinneret according to the invention is finally pivotable by said amount. If air is now blown outward through the inlet opening of the spinneret after the pivoting in order to move the yarn end counter to the spinning direction through the spinneret, this air does not impinge on the fiber structure located in the drafting system. Rather, it passes the drafting laterally, so that an influence on the fiber composite properties can be excluded.
Besondere Vorteile bringt es mit sich, wenn die Spinndüse mechanisch, pneumatisch, hydraulisch, magnetisch und/oder elektromagnetisch wirkende Mittel umfasst, mit deren Hilfe das Gehäuse von seiner Schließstellung in seine Offenstellung und/oder umgekehrt überführbar ist. Beispielsweise könnten ein oder mehrere Pneumatikzylinder zum Einsatz kommen, mit deren Hilfe der verschiebbare Gehäuseabschnitt entlang der Führung verschiebbar ist. Ebenso wäre es denkbar, dass zumindest eine Feder vorhanden ist, mit deren Hilfe der verschiebbare Gehäuseabschnitt gegen einen weiteren Gehäuseabschnitt gepresst wird, so dass das Gehäuse mit Hilfe der Feder in seiner Schließstellung gehalten wird, bis das verschiebbare Gehäuse mit Hilfe eines Pneumatikzylinders, eines Elektromagneten oder eines sonstigen geeigneten Mittels gegen die Federkraft der Feder verschoben wird, um das Gehäuse in seine Offenstellung zu überführen.It has particular advantages when 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. For example, one or more pneumatic cylinders could be used, by means of which the displaceable housing section is displaceable along the guide. It would also be conceivable that 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.
Ebenso bringt es Vorteile mit sich, wenn die Führung eine oder mehrere wenigstens abschnittsweise geradlinig verlaufende und der Führung eines der Gehäuseabschnitte dienende Führungsabschnitte aufweist. Bei der Führung handelt es sich beispielsweise um eine Linearführung oder um eine Führung, die zumindest abschnittsweise als Linearführung ausgebildet ist. Der geradlinig verlaufende Führungsabschnitt kann beispielsweise parallel zu einer Mittelachse des Abzugskanals verlaufen. Ebenso kann die Führung bzw. zumindest ein Führungsabschnitt derselben Teil der Spinndüse oder auch Teil eines die Spinndüse tragenden Trägers der Luftspinnmaschine sein. Ferner kann die Führung einen Führungsabschnitt aufweisen, der den geführten Abschnitt des verschiebbaren Gehäuseabschnitts umgreift, um eine möglichst spielarme Führung zu gewährleisten.Likewise, it brings advantages when 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. Likewise, 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. Further, 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.
Vorteilhaft ist es, wenn der Abzugskanal eine Mittelachse aufweist, wobei die Verlängerung der Mittelachse außerhalb der Einlauföffnung der Wirbelkammer verläuft, wenn das Gehäuse seine Schließstellung aufweist. Hierdurch wird sichergestellt, dass sich die im Bereich des Garnbildungselements erzeugte Drehung des Faserverbands nicht entgegen der Spinnrichtung nach außen fortpflanzt (dies hätte eine negative Beeinträchtigung bzw. sogar eine Unterbrechung der Garnherstellung zur Folge). Mit anderen Worten wirkt der seitliche Versatz von Abzugskanal und Einlauföffnung während der Garnherstellung als Drallstopp. Hingegen hätte dieser Versatz während der Rückführung des Garnendes im Rahmen eines Anspinnvorgangs den Nachteil, dass auch das Garnende im Bereich zwischen der Einlassöffnung des Garnbildungselements und der Einlauföffnung der Wirbelkammer seitlich versetzt werden müsste, um durch die Einlauföffnung nach außerhalb der Wirbelkammer geführt werden zu können. Deshalb ist es von Vorteil, wenn sich die Verlängerung der Mittelachse des Abzugskanals in die Einlauföffnung der Wirbelkammer erstreckt, wenn das Gehäuse seine Offenstellung aufweist, wobei dies durch eine entsprechend ausgerichtete Führung ermöglicht wird. Das Garnende kann damit besonders einfach in der Offenstellung des Gehäuses entgegen der Spinnrichtung durch die Spinndüse zurückgeführt werden, wobei hierfür lediglich eine Luftströmung innerhalb des Abzugskanals erzeugt werden muss, der entgegen der Spinnrichtung und damit in die Einlauföffnung der Wirbelkammer gerichtet ist. Hierfür weist die Spinndüse vorzugsweise eine oder mehrere Injektionsdüsen auf, die schräg und entgegen der Spinnrichtung in den Abzugskanal münden und mit einer Druckluftversorgung in Verbindung stehen.It is advantageous if 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. On the other hand, during the return of the yarn end in the course of a piecing operation, this offset would have the disadvantage that the yarn end in the area between the inlet opening of the yarn formation element and the inlet opening of the vortex chamber would have to be displaced laterally in order to be guided out of the vortex chamber through the inlet opening. Therefore, it is advantageous if the extension of the center axis of the exhaust duct extends into the inlet opening of the swirl chamber, when the housing has its open position, this being made possible by a correspondingly oriented guide. 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. For this purpose, 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.
In diesem Zusammenhang ist es besonders vorteilhaft, wenn die Führung eine oder mehrere wenigstens abschnittsweise gekrümmt verlaufende und der Führung eines der Gehäuseabschnitte dienende Führungsabschnitte aufweist. Mit Hilfe einer derartigen Führung kann der verschiebbare Gehäuseabschnitt während seiner Verschiebung gegenüber dem weiteren Gehäuseabschnitt gekippt werden, so dass sich die Verlängerung der Mittelachse des Abzugskanals nach dem Verschieben des mit Hilfe der Führung gelagerten Gehäuseabschnitts in die Einlauföffnung der Wirbelkammer erstreckt.In this context, it is particularly advantageous if the guide has one or more at least partially curved and extending serving the leadership of one of the housing sections guide portions. With the aid of such a guide, 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.
An dieser Stelle sei darauf hingewiesen, dass es im Rahmen der Erfindung generell von Vorteil ist, wenn der die Einlauföffnung der Wirbelkammer aufweisende Gehäuseabschnitt in einem ersten Gehäuseabschnitt und das Garnbildungselement in einem zweiten Gehäuseabschnitt angeordnet ist, wobei einer der genannten Gehäuseabschnitte relativ zum anderen verschiebbar gelagert ist.At this point it should be noted that it is generally advantageous within the scope of the invention if 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.
Vorteile bringt es zudem mit sich, wenn das Gehäuse wenigstens einen ersten Gehäuseabschnitt und einen zweiten Gehäuseabschnitt aufweist, wobei der erste Gehäuseabschnitt entlang der Führung verschiebbar ist, und wobei die Führung starr mit dem zweiten Gehäuseabschnitt verbunden ist. Eine Relativbewegung zwischen der Führung und dem zweiten Gehäuseabschnitt wird hierdurch sicher vermieden. Neben einer Verbindung von dem zweiten Gehäuseabschnitt und der Führung ist es ebenso möglich, dass die Führung Teil des zweiten Gehäuseabschnitts ist, so dass eine separate Befestigung der Führung am zweiten Gehäuseabschnitt entfallen kann.It also brings benefits when 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. In addition to a connection of the second housing portion and the guide, it is also possible that 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.
Des Weiteren ist es vorteilhaft, wenn wenigstens ein Gehäuseabschnitt relativ zu einem weiteren Gehäuseabschnitt verschwenkbar gelagert ist. In diesem Fall kann der verschwenkbare Gehäuseabschnitt als Teil der Spinndüse verschwenkt werden. Darüber hinaus kann er zusätzlich zu der genannten Verschwenkung gegenüber einem weiteren Gehäuseabschnitt verschwenkt werden, so dass zwei unabhängige Schwenkbewegungen möglich sind. Vorteilhafterweise handelt es sich bei dem in zweifacher Hinsicht verschwenkbaren Gehäuseabschnitt um denjenigen Gehäuseabschnitt, der auch entlang der Führung verschiebbar ist. Der verschiebbare Gehäuseabschnitt kann in diesem Fall ausgehend von der Spinnstellung der Spinndüse zunächst als Teil der Spinndüse verschwenkt, anschließend entlang der Führung verschoben und zuletzt gegenüber einem weiteren Gehäuseabschnitt verschwenkt werden. Im Ergebnis kann der verschiebbare Gehäuseabschnitt also drei Stellungen einnehmen, wobei die zuletzt genannte Stellung eine besonders gute Zugänglichkeit des Garnbildungselements ermöglicht.Furthermore, it is advantageous if at least one housing section is mounted pivotably relative to a further housing section. In this case, the pivotable housing portion can be pivoted as part of the spinneret. In addition, 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. advantageously, it is in the case of two-fold pivotable housing portion to those housing portion which is also displaceable along the guide. In this case, 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. As a result, the displaceable housing section can therefore occupy three positions, wherein the last-mentioned position permits particularly good accessibility of the yarn-forming element.
Auch ist es von Vorteil, wenn die Spinndüse um eine erste Schwenkachse und der verschwenkbare Gehäuseabschnitt um eine zweite Schwenkachse verschwenkbar gelagert sind, wobei die erste Schwenkachse in einer senkrecht zur ersten Schwenkachse verlaufenden Richtung von der zweiten Schwenkachse beabstandet angeordnet ist. Durch die Wahl zweier voneinander beabstandeter Schwenkachsen können die Position und die einzelnen Bewegungsrichtungen des zweifach verschwenkbaren Gehäuseabschnitts besonders einfach an die gegebenen Platzbedingungen in der Luftspinnmaschine angepasst werden. Vorzugsweise verlaufen die beiden Schwenkachsen parallel zueinander.It is also advantageous if 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. By selecting two spaced apart pivot axes, 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. Preferably, the two pivot axes are parallel to each other.
Besonders vorteilhaft ist es, wenn der verschwenkbare Gehäuseabschnitt an einem Schlitten gelagert und gegenüber diesem verschwenkbar ist, wobei der Schlitten wiederum mit Hilfe der Führung geführt und entlang der Führung verschiebbar ist. Der Schlitten umfasst vorzugsweise eine Schwenkachse, an der der verschwenkbare Gehäuseabschnitt mit Hilfe eines Schwenkbolzens oder ähnlichen Mitteln befestigt ist (alternativ kann selbstverständlich auch der verschwenkbare Gehäuseabschnitt eine Schwenkachse umfassen, die an einem Drehbolzen o. ä. des Schlittens gelagert ist).It is particularly advantageous if 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. Ä. Of the carriage).
Vorteilhaft ist es, wenn die Spinndüse Mittel umfasst, die beim Verschwenken der Spinndüse ein Verschieben des entlang der Führung verschiebbaren Gehäuseabschnitts bewirken. Hierfür kann der verschiebbare Gehäuseabschnitt beispielsweise mit einem Gestänge oder einem Seilzug in Verbindung stehen, das bzw. der mit einem weiteren Gehäuseabschnitt oder einem Trägerabschnitt der Spinndüse derart gekoppelt ist, dass sich der verschiebbare Gehäuseabschnitt und zumindest ein weiterer Gehäuseabschnitt automatisch auseinanderbewegen, wenn die Spinndüse manuell oder mit Hilfe automatisch betätigbarer Mittel (Pneumatikzylinder, etc.) verschwenkt wird.It is advantageous if the spinneret comprises means which, when the spinneret is pivoted, displace the guide along the guide Cause housing section. For this purpose, 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.
Das erfindungsgemäße Verfahren zum Öffnen einer Spinndüse einer Luftspinnmaschine zeichnet sich dadurch aus, dass die Spinndüse bewegt, vorzugsweise verschwenkt, wird und dass im Zuge dieser Bewegung oder im Anschluss daran ein Öffnen des Gehäuses erfolgt, indem einer der Gehäuseabschnitte gegenüber einem weiteren Gehäuseabschnitt verschoben wird, wobei das Verschieben derart erfolgt, dass nach dem Verschieben des entsprechenden Gehäuseabschnitts zumindest der die Einlassöffnung aufweisende Abschnitt des Garnbildungselements für einen Bediener zugänglich und reinigbar ist. Zumindest ein Gehäuseabschnitt wird also im Rahmen des Öffnungsvorgangs zunächst als Teil der Spinndüse verschwenkt und anschließend entlang einer Führung verschoben (wobei die Spinndüse bzw. deren Bestandteile gemäß vorangegangener oder nachfolgender Beschreibung ausgebildet sein können). Insbesondere ist es von Vorteil, wenn das Verschieben des verschieblich gelagerten Gehäuseabschnitts entlang einer zumindest teilweise gekrümmten Führungsbahn erfolgt (wobei hinsichtlich der diesbezüglichen Vorteile auf die obige Beschreibung verwiesen wird).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). In particular, it is advantageous if 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).
Vorteilhaft ist es zudem, wenn während oder nach dem genannten Verschieben des entsprechenden Gehäuseabschnitts ein Verschwenken eines Gehäuseabschnitts gegenüber einem weiteren Gehäuseabschnitts erfolgt, um die Zugänglichkeit des genannten Abschnitts des Garnbildungselements weiter zu verbessern. Vorzugsweise wird hierbei der Gehäuseabschnitt verschwenkt, der zuvor verschoben wurde. Dieser Gehäuseabschnitt wird also während dem Öffnen der Spinndüse um eine erste Schwenkachse verschwenkt, darüber hinaus verschoben und zusätzlich um eine zweite Schwenkachse verschwenkt.It is also advantageous if, during or after said shifting of the corresponding housing section, 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. Preferably, in this case, 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.
Weitere Vorteile der Erfindung sind in den nachfolgenden Ausführungsbeispielen beschrieben. Es zeigen, jeweils schematisch:
-
Figur 1 - eine Seitenansicht eines Ausschnitts einer Luftspinnmaschine,
-
Figur 2 - eine Schnittdarstellung einer Spinndüse in Nachbarschaft eines Streckwerkswalzenpaares,
- Figur 3
- eine erfindungsgemäße Spinndüse in Spinnstellung,
-
Figur 4 - die in
Figur 3 gezeigte Spinndüse in verschwenkter Stellung, -
Figur 5 - die in
gezeigte Spinndüse mit geöffnetem Gehäuse,Figur 4 -
Figur 6 - eine weitere erfindungsgemäße Spinndüse mit einem Gehäuse in Offenstellung,
-
Figur 7 - jeweils eine Schnittdarstellung eines Gehäuses in Schließstellung (links) und in Offenstellung (rechts),
-
Figur 8 - eine weitere erfindungsgemäße Spinndüse mit einem Gehäuse in Spinnstellung, und
-
Figur 9 - die in
gezeigte Spinndüse mit verschwenktem und geöffnetem Gehäuse.Figur 8
- FIG. 1
- a side view of a section of an air-spinning machine,
- FIG. 2
- a sectional view of a spinneret in the vicinity of a drafting roller pair,
- FIG. 3
- a spinneret according to the invention in the spinning position,
- FIG. 4
- in the
FIG. 3 shown spinneret in a pivoted position, - FIG. 5
- in the
FIG. 4 shown spinneret with opened housing, - FIG. 6
- a further spinneret according to the invention with a housing in the open position,
- FIG. 7
- each a sectional view of a housing in the closed position (left) and in the open position (right),
- FIG. 8
- another spinneret according to the invention with a housing in the spinning position, and
- FIG. 9
- in the
FIG. 8 shown spinneret with pivoted and opened housing.
Darüber hinaus kann die Spinnstelle ein der Spinndüse 1 nachgeordnetes und zwei Abzugswalzen 23 aufweisendes Abzugswalzenpaar sowie eine dem Abzugswalzenpaar nachgeschaltete Spulvorrichtung zum Aufspulen des die Spinnstelle verlassenden Garns 2 auf eine Hülse 24 umfassen. Die erfindungsgemäße Spinnstelle muss nicht zwangsweise ein Streckwerk 20 aufweisen. Auch ist das Abzugswalzenpaar nicht zwingend notwendig.In addition, the spinning station may comprise a pair of delivery rollers downstream of the
Die gezeigte Spinnstelle arbeitet generell nach einem Luftspinnverfahren. Zur Bildung des Garns 2 wird der Faserverband 3 über ein die genannte Einlauföffnung 6 aufweisendes Faserführungselement 25 in die Wirbelkammer 5 der Spinndüse 1 geführt. Dort erhält es eine Drehung, d. h. mindestens ein Teil der freien Faserenden des Faserverbands 3 wird von einer Wirbelluftströmung, die durch entsprechend in einer die Wirbelkammer 5 umgebenden Gehäusewandung angeordnete Luftdüsen 8 erzeugt wird, erfasst (wobei die Luftdüsen 8 über einen Luftkanal 26 in Verbindung stehen können, der wiederum mit einer Druckluftleitung 27 verbunden ist, die über eine Druckluftversorgung mit Druckluft gespeist wird).The spinning station shown generally works by an air spinning process. To form the
Ein Teil der Fasern wird hierbei aus dem Faserverband 3 zumindest ein Stück weit herausgezogen und um den Frontbereich eines in die Wirbelkammer 5 ragenden Garnbildungselements 7 gewunden. Dadurch, dass der Faserverband 3 durch eine Einlassöffnung 9 des Garnbildungselements 7 über einen innerhalb des Garnbildungselements 7 angeordneten Abzugskanal 10 aus der Wirbelkammer 5 und schließlich über eine Auslassöffnung 22 aus der Spinndüse 1 abgezogen wird, werden schließlich auch die freien Faserenden in Richtung der Einlassöffnung 9 gezogen und schlingen sich dabei als sogenannte Umwindefasern um die zentral verlaufenden Kernfasernresultierend in einem die gewünschte Drehung aufweisenden Garn 2. Die über die Luftdüsen 8 eingebrachte Druckluft verlässt die Spinndüse 1 schließlich über den Abzugskanal 10 sowie einen eventuell vorhandene Luftauslass 29, der bei Bedarf mit einer Unterdruckquelle verbunden sein kann.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
Generell sei an dieser Stelle klargestellt, dass es sich bei dem hergestellten Garn 2 grundsätzlich um einen beliebigen Faserverband 3 handeln kann, der sich dadurch auszeichnet, dass ein außenliegender Teil der Fasern (sogenannte Umwindefasern) um einen inneren, vorzugsweise ungedrehten oder bei Bedarf ebenfalls gedrehten Teil der Fasern, herumgeschlungen ist, um dem Garn 2 die gewünschte Festigkeit zu verleihen. Umfasst ist von der Erfindung also auch eine Luftspinnmaschine, mit deren Hilfe sich sogenanntes Vorgarn herstellen lässt. Bei Vorgarn handelt es sich um ein Garn 2 mit einem relativ geringen Anteil an Umwindefasern, bzw. um ein Garn 2, bei dem die Umwindefasern relativ locker um den inneren Kern geschlungen sind, so dass das Garn 2 verzugsfähig bleibt. Dies ist dann entscheidend, wenn das hergestellte Garn 2 an einer nachfolgenden Textilmaschine (beispielsweise einer Ringspinnmaschine) nochmals mit Hilfe eines Streckwerks 20 verzogen werden soll bzw. muss, um entsprechend weiterverarbeitet werden zu können.In general, it should be made clear at this point that the
Im Hinblick auf die Luftdüsen 8 sei an dieser Stelle zudem rein vorsorglich erwähnt, dass diese in der Regel so ausgerichtet sein sollten, dass die austretenden Luftstrahlen gleichgerichtet sind, um gemeinsam eine gleichgerichtete Luftströmung mit einem Drehsinn zu erzeugen. Vorzugsweise sind die einzelnen Luftdüsen 8 hierbei rotationssymmetrisch zueinander angeordnet und münden tangential in die Wirbelkammer 5.With regard to the
Des Weiteren ist der
Der Grundgedanke der vorliegenden Erfindung lässt sich nun der Zusammenschau der
Zunächst zeigt ein Vergleich der
Neben der Verschwenkung der Spinndüse 1 und der einzelnen voneinander trennbaren Gehäuseabschnitte 11 des Gehäuses 4 der Spinndüse 1 ist vorgesehen, dass zumindest einer von mehreren Gehäuseabschnitten 11 der Spinndüse 1 relativ zu einem weiteren Gehäuseabschnitt 11 entlang einer Führung 12 verschiebbar ist, um das Gehäuse 4 von einer Schließstellung (
Während
Während die linke Darstellung in
Schließlich zeigen die
Abschließend sei klargestellt, dass das Verschwenken der Spinndüse 1 bzw. das Verschieben und/oder Verschwenken einzelner Gehäuseabschnitte 11 manuell oder aber auch mit Hilfe entsprechender Mittel erfolgen kann. Beispielsweise ist in
Die vorliegende Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsbeispiele beschränkt. Abwandlungen im Rahmen der Patentansprüche sind ebenso möglich wie eine beliebige Kombination der beschriebenen Merkmale, auch wenn sie in unterschiedlichen Teilen der Beschreibung bzw. den Ansprüchen oder in unterschiedlichen Ausführungsbeispielen dargestellt und beschrieben sind.The present invention is not limited to the illustrated and described embodiments. Variations within the scope of the claims are possible as well as any combination of the described Features, even if they are shown and described in different parts of the description or the claims or in different embodiments.
- 11
- Spinndüsespinneret
- 22
- Garnyarn
- 33
- Faserverbandfiber structure
- 44
- Gehäusecasing
- 55
- Wirbelkammerswirl chamber
- 66
- Einlauföffnung der WirbelkammerInlet opening of the vortex chamber
- 77
- GarnbildungselementGarnbildungselement
- 88th
- Luftdüseair nozzle
- 99
- Einlassöffnung des GarnbildungselementsInlet opening of Garnbildungselements
- 1010
- Abzugskanal des GarnbildungselementsDischarge channel of Garnbildungselements
- 1111
- Gehäuseabschnitthousing section
- 1212
- Führungguide
- 1313
- geradlinig verlaufender Führungsabschnitt der Führungrectilinear guide section of the guide
- 1414
- Mittelachse des AbzugskanalsCenter axis of the exhaust duct
- 1515
- gekrümmt verlaufender Führungsabschnitt der Führungcurved guide portion of the guide
- 1616
- erste Schwenkachsefirst pivot axis
- 1717
- zweite Schwenkachsesecond pivot axis
- 1818
- Schlittencarriage
- 1919
- StreckwerkswalzeDrafting system roller
- 2020
- Streckwerkdrafting system
- 2121
- RiemchenStrappy
- 2222
- Auslassöffnung der SpinndüseOutlet opening of the spinneret
- 2323
- Abzugswalzeoff roll
- 2424
- Hülseshell
- 2525
- FaserführungselementFiber guide element
- 2626
- Luftkanalair duct
- 2727
- DruckluftleitungCompressed air line
- 2828
- Injektionsdüseinjection nozzle
- 2929
- Luftauslassair outlet
- 3030
- Trägercarrier
- 3131
- geführter Abschnittguided section
- 3232
- Federelementspring element
- αα
- Winkel, um den die Spinndüse verschwenkt werden kannAngle around which the spinneret can be pivoted
- ββ
- Winkel, um den ein Gehäuseabschnitt gegenüber einem weiteren Gehäuseabschnitt verschwenkt werden kannAngle by which a housing section can be pivoted relative to a further housing section
Claims (13)
dadurch gekennzeichnet,
dass die Spinndüse (1) bewegt, vorzugsweise verschwenkt, wird, und dass im Zuge dieser Bewegung oder im Anschluss daran ein Öffnen des Gehäuses (4) erfolgt, indem einer der Gehäuseabschnitte (11) gegenüber einem weiteren Gehäuseabschnitt (11) verschoben wird, wobei das Verschieben derart erfolgt, dass nach dem Verschieben des entsprechenden Gehäuseabschnitts (11) zumindest der die Einlassöffnung (9) aufweisende Abschnitt des Garnbildungselements (7) für einen Bediener zugänglich und reinigbar ist.Method for opening a spinneret (1) of an air-jet spinning machine, which serves to produce yarn (2) from a fiber structure (3) by means of an air flow, in particular a spinneret (1) according to one of the preceding claims, wherein the spinneret (1) engages Housing (4) with at least two, an internal swirl chamber (5) outwardly bounding housing sections (11), and wherein the spinneret (1) at least partially in the swirl chamber (5) extending Garnbildungselement (7) having an inlet opening (9) for the yarn (2) produced from the fiber structure (3),
characterized,
in that the spinneret (1) is moved, preferably pivoted, and that in the course of this movement or subsequently an opening of the housing (4) takes place in that one of the housing sections (11) is displaced relative to a further housing section (11) the displacement takes place in such a way that after the displacement of the corresponding housing section (11) at least the portion of the yarn formation element (7) having the inlet opening (9) is accessible and cleanable by an operator.
Applications Claiming Priority (1)
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DE102015100825.4A DE102015100825A1 (en) | 2015-01-21 | 2015-01-21 | Spinneret of an air spinning machine and method for opening the same |
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EP3048191A1 true EP3048191A1 (en) | 2016-07-27 |
EP3048191B1 EP3048191B1 (en) | 2019-06-05 |
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EP (1) | EP3048191B1 (en) |
JP (1) | JP2016132855A (en) |
CN (1) | CN105803589B (en) |
DE (1) | DE102015100825A1 (en) |
Cited By (4)
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---|---|---|---|---|
EP3168340A4 (en) * | 2014-07-10 | 2018-03-28 | Murata Machinery, Ltd. | Air spinning device and spinning machine |
WO2018087054A1 (en) * | 2016-11-08 | 2018-05-17 | Maschinenfabrik Rieter Ag | Spinneret for an air jet spinning machine, and method for operating same |
EP3835467A1 (en) | 2019-12-09 | 2021-06-16 | Saurer Intelligent Technology AG | Method for cleaning an air spinning device of a spinning unit, such an air spinning device and a thread forming unit for such an air spinning device |
EP4015681A1 (en) * | 2020-12-18 | 2022-06-22 | Saurer Intelligent Technology AG | Spinning station with a cleaning nozzle and method for cleaning a yarn forming element |
Families Citing this family (5)
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DE102017113257A1 (en) * | 2017-06-16 | 2018-12-20 | Maschinenfabrik Rieter Ag | Working point of an air-jet spinning machine and method for opening a spinneret |
DE102018130826A1 (en) * | 2018-12-04 | 2020-06-04 | Maschinenfabrik Rieter Ag | Spinneret and method for cleaning the same |
DE102019103271A1 (en) * | 2019-02-11 | 2020-08-13 | Maschinenfabrik Rieter Ag | Spinneret for an air-jet spinning machine and method for opening such a machine |
DE102019116278A1 (en) * | 2019-06-14 | 2020-12-17 | Saurer Intelligent Technology AG | Textile machine |
DE102020108499A1 (en) | 2020-03-27 | 2021-09-30 | Maschinenfabrik Rieter Ag | Spinning unit for an air-jet spinning machine, air-jet spinning machine and method for operating an air-jet spinning machine |
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2015
- 2015-01-21 DE DE102015100825.4A patent/DE102015100825A1/en active Pending
-
2016
- 2016-01-13 EP EP16151063.1A patent/EP3048191B1/en active Active
- 2016-01-15 CN CN201610029290.1A patent/CN105803589B/en active Active
- 2016-01-18 JP JP2016007120A patent/JP2016132855A/en active Pending
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EP1217109A2 (en) * | 2000-12-22 | 2002-06-26 | Maschinenfabrik Rieter Ag | Spinning device |
EP1655393A2 (en) * | 2004-11-05 | 2006-05-10 | Murata Kikai Kabushiki Kaisha | Spinning device and method for detecting fiber accumulated state |
EP2573220A2 (en) | 2011-09-21 | 2013-03-27 | Murata Machinery, Ltd. | Spinning unit and spinning machine |
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EP3835467A1 (en) | 2019-12-09 | 2021-06-16 | Saurer Intelligent Technology AG | Method for cleaning an air spinning device of a spinning unit, such an air spinning device and a thread forming unit for such an air spinning device |
WO2021116083A1 (en) | 2019-12-09 | 2021-06-17 | 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 |
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EP4015681A1 (en) * | 2020-12-18 | 2022-06-22 | Saurer Intelligent Technology AG | Spinning station with a cleaning nozzle and method for cleaning a yarn forming element |
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 |
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JP2016132855A (en) | 2016-07-25 |
CN105803589A (en) | 2016-07-27 |
CN105803589B (en) | 2020-05-22 |
DE102015100825A1 (en) | 2016-07-21 |
EP3048191B1 (en) | 2019-06-05 |
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