EP3140440B1 - Machine textile et procédé pour faire fonctionner une telle machine - Google Patents

Machine textile et procédé pour faire fonctionner une telle machine Download PDF

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Publication number
EP3140440B1
EP3140440B1 EP15725863.3A EP15725863A EP3140440B1 EP 3140440 B1 EP3140440 B1 EP 3140440B1 EP 15725863 A EP15725863 A EP 15725863A EP 3140440 B1 EP3140440 B1 EP 3140440B1
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EP
European Patent Office
Prior art keywords
tube
roving
sleeve
change
empty
Prior art date
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Active
Application number
EP15725863.3A
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German (de)
English (en)
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EP3140440A1 (fr
Inventor
Petr Haska
Jiri STECH
Robert Mikyska
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
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Maschinenfabrik Rieter AG
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Publication of EP3140440A1 publication Critical patent/EP3140440A1/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
    • D01H1/14—Details
    • D01H1/40—Arrangements for connecting continuously-delivered material to bobbins or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
    • B65H67/0417—Arrangements for removing completed take-up packages or for loading an empty core for loading an empty core
    • B65H67/0422—Arrangements for removing completed take-up packages or for loading an empty core for loading an empty core for loading a starter winding, i.e. a spool core with a small length of yarn wound on it; preparing the starter winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/044—Continuous winding apparatus for winding on two or more winding heads in succession
    • B65H67/048—Continuous winding apparatus for winding on two or more winding heads in succession having winding heads arranged on rotary capstan head
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/311—Slivers

Definitions

  • the present invention relates to a method for operating a textile machine, which serves for the production of roving, according to the preamble of the independent method claim. Further, a textile machine for producing a roving according to the preamble of the independent device claim is proposed.
  • Roving is produced from slivers pretreated (eg doubled) with the aid of stretching and serves as a template for the subsequent spinning process in which the individual fibers of the roving are spun into a yarn, for example by means of a ring spinning machine.
  • a drafting system which is usually part of the corresponding textile machine, and then to provide it with a protective rotation.
  • the said strength is important to prevent ripping of the roving when winding on a sleeve or during the supply to the downstream spinning machine.
  • the given protective rotation must on the one hand be so strong that a cohesion of the individual fibers is ensured during the individual winding or unwinding operations as well as corresponding transport processes between the respective machine types. On the other hand, it must be ensured despite the protective rotation that the roving can be further processed in a spinning machine - the roving must therefore continue to be delayable.
  • flyers In order to produce a corresponding roving, so-called flyers are primarily used, but their delivery speed is limited due to centrifugal forces occurring. There were already many suggestions to bypass the flyer or to replace with an alternative machine type.
  • the solidification of the unconsolidated fiber structure described therein is effected by means of a solidifying agent, which causes no rotation, but a spiral wrapping of a sliver by one or more filament yarns, preferably monofilament filament yarns, which hold together the fiber structure and give it its strength.
  • the spirals of the individual filament yarns can be arranged in the same direction or in opposite directions. Preference is given to two filament yarns, which are arranged in opposite directions or cross over.
  • the roving produced in this way is thus essentially composed of a sliver of parallelized staple fibers and one or more fine-denier filament yarns spirally wound around the sliver.
  • the filament yarn may be applied to small diameter small coils.
  • the filament yarn is then pulled off the stationary bobbin and pulled through the bobbin axis along with the fiber strand, the filament yarn being wound around the fiber web and the number of turns drawn from the bobbin corresponding to the number of turns applied to the fiber web.
  • the binding point should be determined by a suitable thread guide.
  • Another method for producing roving describes the WO 2009/086646 A1 the method comprising the steps of: 1) providing a fiber strand in the form of two, preferably untwisted, fiber ribbons, 2) imparting S and Z turns over alternating regions of the two fiber ribbons, with regions of S and Z turns 3) merging the two provided with S and Z turns fiber slivers into a roving, wherein the two slivers automatically spin together due to their tendency to reverse.
  • the S and Z rotations can z. B. by means of two elements of the used solidifying agent, which hold the respective sliver clamping, at least one element, preferably both elements, the sliver by a relative movement on its surface transverse to the sliver longitudinal direction on both sides alternately impart opposing rotations. At the same time, the respective sliver is moved in sliver direction.
  • the S and Z rotations can also be generated by means of an aerodynamic, in particular pneumatic, process.
  • the alternating S and Z turns are also interrupted by changing areas without rotation.
  • the two slivers provided in the same way with S and Z turns are finally brought together in the so-called merging point.
  • the slivers begin to spin automatically, ie they wrap around each other. This so-called fraen maintains the S and Z turns in the individual slivers, so that a self-stabilizing two-component roving arises.
  • the regions without rotation in the first sliver should be arranged offset to the regions without rotation in the second sliver in the longitudinal direction, so that never two areas without rotation of the first and second sliver in the resulting roving adjacent to each other, as the Strength of the roving significantly depends on the phase position of the areas without rotation of the two slivers.
  • the rovings are therefore, as described above, always brought together with the aid of the solidifying agent so that their areas are out of phase without rotation. That on this Made roving finally has over a non-twisted fiber composite on a higher strength, which is ultimately sufficient to wind the roving without Benedictververs on a spool and unwind from this again.
  • CH 705 236 A1 relates to a device and a method for winding roving on winding tubes with a revolver winding head.
  • the turret reel head includes a turret base plate having first and second spindles held in the turret base plate for receiving the spool sleeves with a longitudinal axis.
  • the revolver base plate and the spindles are each provided with their own drive. The longitudinal axes of the spindles are aligned in the vertical direction.
  • CH 705 237 A1 relates to a drive unit for driving a revolver winding head for winding roving on winding tubes.
  • the drive unit comprises a closed housing, first and second spindles arranged in a turret base plate, the turret base plate being formed as part of the housing and the spindles being located outside the housing, and a first drive for the first spindle and a second drive for the second spindle, wherein the drives are arranged within the housing and the first and the second drive are each equipped with a fan.
  • At the first and second drive suction side of the fan wheel is provided in each case an intake passage through which an intake of air through the fan wheel is provided from outside the housing.
  • WO 2013/010279 A1 refers to a roving winder, in particular a turret roving winder, which has at least one pair of rotating coils, each provided with a circumferential rake for holding the roving.
  • EP 0 522 255 A1 relates to a method for severing the flocks of roving bobbins made on roving machines. After stopping the machine, a loop is placed in the upper region of the coil, with the free end of the fuse ending at the level of the cylindrical region.
  • Object of the present invention is therefore to propose a method for operating a textile machine, which is used to produce roving, as well as a corresponding textile machine, which are characterized by a most efficient sleeve replacement.
  • the object is achieved by a method and a textile machine according to the preamble of the independent claims by the characterizing features.
  • the method is characterized in that the preparation of the roving is not interrupted during the sleeve change, wherein the roving produced or supplied by the solidifying agent is wound during the sleeve change at least as long as the bespulte sleeve until, due to the sleeve replacement, comes into contact with the empty sleeve.
  • the method according to the invention thus proposes that the production of the roving be continued during the tube change.
  • the solidifying agent is also supplied with a fiber structure (which is preferably drawn before entry into the solidifying agent with the aid of a drafting system of the textile machine), which is provided with a protective rotation in the solidifying agent.
  • the roving is in this case wound up to the sleeve change to the sleeve located in the winding unit and brought during the sleeve change with a new, empty sleeve in contact, which is preferably still in a spaced from the winding unit of the winding device at this time.
  • the roving is finally severed between the spun and the initially empty tube, the latter being brought into the area of the winding station at the same time or with a time delay.
  • the roving subsequently delivered by the solidifying agent is finally wound onto the new sleeve, so that the sleeve change without a production stop of the roving can take place.
  • the bespulte sleeve which is after the sleeve change in the range of a sleeve removal point (in which was before the sleeve change the empty sleeve) can finally be removed from the winding device and replaced by another empty sleeve, so that the winding device for the next sleeve change is prepared.
  • the production of the roving can thus be maintained without interruption with corresponding interposed sleeve changes until no fiber strand is available or the textile machine has to be shut down for another reason.
  • said solidifying agent can be designed differently.
  • the solidifying agent is suitable, the roving on in the above-mentioned publications WO 2009/086646 A1 and DE 24 47 715 A1 to produce described manner.
  • the textile machine is designed as an air-spinning machine and the solidification agent as an air-spinning nozzle, by the protective rotation of the roving, as described above, is generated by means of fluid eddy currents (a section of a corresponding, designed as an air-spinning textile machine is described by way of example in the figure description).
  • the roving delivery speed of the solidifying agent remains constant during the sleeve change or deviates a maximum of 30%, preferably a maximum of 25%, from the roving delivery speed which the solidifying agent has before and / or after the sleeve change.
  • the Vorgarnunter accordingly by throttling the delivery speed of the solidification preferably upstream drafting and, if used as solidification an air spinneret, by throttling the pressure and / or flow rate of the vortex air flow within the spinneret necessary spin air, at least temporarily reduce or increase.
  • the speed of the before the changing process bespulten sleeve and / or the speed of the empty before the change process sleeve during the change process, at least temporarily, increased or decreased, which also deviates from up to 25% compared to the speed of the coated before the change process sleeve are conceivable.
  • the speeds mentioned are to be adapted to one another and to the roving delivery speed such that there is no tearing of the roving between the solidifying agent and the compacted sleeve or between the compacted and empty tubes during the sleeve replacement.
  • the bespulte sleeve and the empty sleeve at the beginning of the sleeve rotation rotate during the sleeve change about a rotation axis
  • the rotation of the empty sleeve can be set only shortly before the sleeve change or only at the beginning of the same.
  • the winding device has at least two sleeve holder, with the help of each sleeve can be fixed, the sleeve holder should in turn be associated with separate drives in order to regulate the rotational speeds of the respective sleeve holder and thus held by these sleeves individually.
  • the roving is guided during the sleeve change by means of a traversing element, wherein the traversing element is preferably moved back and forth parallel to the axes of rotation of the sleeves.
  • the position of the turning points of the traversing movement can change during the winding process in order to provide the bobbin with a cone, for example in the region of its end faces.
  • the axes of rotation are aligned vertically, wherein the said sleeve holders are part of a sleeve changing device of the winding device, which is also rotated by a drive about a vertical axis of rotation, the sleeve before the sleeve exchanged during the sleeve replacement of said winding unit in the region of a sleeve change point and at the same time to move the empty sleeve provided before the sleeve change in the region of the sleeve removal point in the region of the winding unit.
  • the traversing element can be formed, for example, by a groove drum leading the roving or a traversing finger moving in an oscillating manner to and fro which includes a guide for the roving.
  • the traversing element is designed as a so-called press finger.
  • the pressing finger has, for example, an elongate, for example, rod-shaped, section, which is wrapped one or more times by the roving during the winding process, so that acting on the roving in its direction of movement, an increasing frictional force.
  • the roving is thereby at winding under a tensile stress, which makes it possible to wind the roving correspondingly tight on the sleeve, wherein the tension generated by the friction is greatest in the region where the roving leaves the presser fingers on its way to the sleeve ,
  • the pressing finger has a guide surface for the roving, which is pressed during the winding process by means of a drive to the uppermost layer of the already rippled on the sleeve roving.
  • the traversing frequency of the traversing element is at least temporarily increased during the sleeve change.
  • the traversing width ie the distance of the turning points of the traversing movement
  • the traversing width could be reduced such that the roving is at least temporarily spooled onto the empty sleeve in which the said adhesive strip is located.
  • the roving is wound during the sleeve change with the help of said traversing element in an area on the bespulte sleeve, which is outside the last before the sleeve replacement bespulten area.
  • the roving may, for example, be spooled in the region of an upper cone of the bobbin (i.e., the roving which is on the sleeve), the roving being spirally wound upwardly in this region.
  • This so-called tie formation prevents the roving during subsequent transport, in which said cone is usually in the upper region of the vertically oriented sleeve dissolves and this causes an unintentional gravitational unwinding of the roving of the sleeve.
  • the traversing element is moved back and forth between two turning points immediately before the sleeve change, wherein the traversing element is moved during the sleeve change in an area which is outside the range lying between the turning points.
  • the turning points limit before the sleeve change the lying between two conically extending edge regions cylindrical portion of the bobbin.
  • the traversing element is guided upward such that the roving is spirally wound on the upper conically extending edge region of the bobbin.
  • the tie formation described above takes place, so that the roving does not solve independently of the bobbin during the subsequent transport of bespulten sleeve.
  • the roving is, after it has come into contact with the empty sleeve, severed between the insufflated sleeve and the empty sleeve at the beginning of the sleeve replacement.
  • the severing can be done for example by means of a separating element which is pivoted or otherwise moved between the bespulten sleeve and the empty at the beginning of the sleeve replacement sleeve in the course of the roving, thereby causing a severing of the roving.
  • the severing of the roving causes the spooled sleeve to be removed from the spooling device after sleeve replacement, and the roving provided by the solidifying agent to be wound onto the empty tube prior to sleeve replacement.
  • the roving is during the sleeve change at least temporarily, and preferably until the time at which the roving is severed according to the previous paragraph, both with the bespulten sleeve or the wound on the bespulten sleeve roving and with the empty at the beginning of the sleeve sleeve in contact ,
  • the contact of the roving should be made outside the adhesive strip during said period of time to prevent premature ripping of the roving.
  • the severing may occur because the roving provided by the solidifying agent at that time is caught by the adhesive strip and by turning the adhesive strip having the adhesive strip Sleeve is wound on this.
  • the roving is severed during the sleeve change at a time at which the traversing element is outside of the last wetted before the sleeve change area of the bespulten sleeve.
  • the end of the roving on the coated tube which is produced by the separating process is wound up in a region which is below or above the two aforementioned points of inflection, resulting in said tie formation.
  • the sleeve changing device which is part of the winding device, for example, comprises a platform which is rotatable by means of a drive about a, in particular vertically extending, axis of rotation.
  • the bespulte sleeve is moved during the sleeve replacement of the winding unit in the area of a sleeve removal point and the empty at the beginning of the sleeve replacement sleeve is moved from the sleeve removal point in the field of winding unit.
  • the winding unit is preferably located closer to the traversing element than the sleeve removal point, wherein in the region of the winding unit, the coil assembly, d. H.
  • the insufflation of an empty sleeve with roving, takes place.
  • a spooled sleeve can be replaced by an empty sleeve, so that an empty sleeve is always ready for a sleeve changing operation during roving production.
  • the said movement of the bespulten and the empty shell takes place for example by turning the sleeve changing device described above.
  • the textile machine according to the invention is characterized in that it has at least one controller which is designed to operate the textile machine in accordance with the previous or following description.
  • the textile machine may additionally have any of the physical features described in the description or claims and / or shown in the figures.
  • the winding device comprises at least two each with the aid of a drive, preferably independently, in a rotational movement displaceable sleeve holder, wherein the sleeve holder part of a sleeve changing device, with the aid of the held by the sleeve holders sleeves from a winding unit to a sleeve removal point and / or vice versa are movable ,
  • the Fig. 1 to 3 show a schematic view of a section of a textile machine according to the invention in the form of serving as an example of such a textile machine air-spinning machine 1, which serves to produce a roving 2, at different times of a startup process of the roving.
  • the air-spinning machine 1 can comprise a drafting unit 16 with a plurality of corresponding drafting rollers 17 (only one of the drafting rollers 17 is provided with a reference numeral for reasons of clarity), which is supplied with a fiber structure 4, for example in the form of a relined conveyor belt.
  • the air spinning machine 1 shown in principle comprises a spaced apart from the drafting 16 solidifying agent in the form of an air-jet nozzle 3 with an internal, known from the prior art and therefore not shown, swirl chamber and also known from the prior art and therefore not shown Garn Strukturselement.
  • the fiber structure 4 or at least part of the fibers of the fiber structure 4 is provided with a protective rotation.
  • the air-spinning machine 1 may comprise a take-off unit 18 with preferably two take-off rolls 19 for the roving 2 (the take-off unit 18 is not absolutely necessary).
  • a winding unit 18 downstream from the take-off unit 18 is generally present, which in turn has at least one sleeve drive 28 (only in the Fig. 1 to 4 shown) and should each include one with the sleeve drive 28 in connection and in principle known sleeve holder 14, by means of which a sleeve 7 fixable and displaceable over the sleeve drive 28 in a rotary motion is.
  • the winding device 5 has in the embodiment according to the invention at least two sleeve holder 14, as hereinafter in connection with the Fig. 4 to 10 results, so that in addition to a sleeve holder 14 for a sleeve 7, which is currently bespult during operation of the air-spinning machine 1, one or more further sleeve holder 14 may be present for empty sleeves 7.
  • the air-spinning machine 1 shown as an example of a textile machine according to the invention now works according to a special air-spinning process.
  • the fiber structure 4 is guided in a transport direction T via an inlet opening, not shown, into the swirl chamber of the air spinning nozzle 3.
  • a protective rotation d. H.
  • at least a portion of the fibers of the fiber composite 4 is detected by a vortex air flow generated by appropriately placed air nozzles.
  • a portion of the fibers is hereby pulled out of the fiber structure 4 at least a little bit and wound around the tip of a projecting into the vortex chamber Garn avoirselements.
  • the fibers of the fiber composite 4 are withdrawn from the vortex chamber via an inlet mouth of the yarn formation element and a withdrawal channel arranged inside the yarn formation element and adjoining the inlet mouth.
  • the free fiber ends are drawn on a spiral path in the direction of the inlet mouth and loop as Umwindefasern to the centrally extending core fibers - resulting in a desired protective rotation having roving. 2
  • the roving 2 has by the only partial rotation of the fibers a delaying ability, which is essential for the further processing of the roving 2 in a subsequent spinning machine, such as a ring spinning machine.
  • conventional air-spinning devices impart to the fiber structure 4 such a strong rotation that the necessary distortion following the yarn production is no longer possible. This is also desirable in this case, since conventional air spinning machines 1 are designed to produce a finished yarn, which should usually be characterized by a high strength.
  • a starting operation must be carried out in which the roving 2 leaving the air-jet nozzle 3 is brought into contact with the sleeve 7. Part of a possible startup is in the Fig. 1 to 3 shown.
  • the fiber structure 4 is supplied by starting the drafting system 16 in the air-spinning nozzle 3.
  • the above-described preparation of rovings takes place, in which the fiber structure 4 receives a protective rotation.
  • the roving 2 leaves the air-jet nozzle 3 via an outlet opening (not shown in the cited figures) and is detected by the air flow of a suction unit 24.
  • the suction unit 24 preferably has a suction nozzle 23 with a suction opening 20, through which air and thus also the roving 2 emerging from the air-jet nozzle 3 is sucked in or sucked in. In this in Fig.
  • the roving 2 produced by the air-jet nozzle 3 leaves the air-jet nozzle 3 and is sucked into the suction unit 24 via the suction opening 20, wherein the delivery speed of the air-spinning nozzle 3 preferably corresponds to the delivery speed prevailing after the starting operation or is only slightly smaller than this.
  • an indicated control 22 is provided, which is in operative connection with the described elements of the air spinning machine 1, to perform, inter alia, the described boot process and the sleeve replacement described below.
  • the controller 22 may be present per spinning station of the air-spinning machine 1. It is also conceivable that a controller 22 is responsible for several spinning stations.
  • the suction unit 24 is moved to a transfer position (preferably, the suction nozzle 23 is pivoted about a pivot axis 25), in which the suction opening 20 and thus also a portion of the roving 2 (in the Remaining still supplied by the air-jet nozzle 3) is in the region of the sleeve surface - a contact between the sleeve 7 and roving 2 preferably does not exist at this stage.
  • the traversing element 9 of a traversing unit 21 in the in Fig. 3 schematically indicated position spent, in which the roving 2 is detected and guided by the traversing element 9.
  • the traversing unit 21 moves the roving 2 in the vicinity of the sleeve 7 or causes a direct contact between sleeve 7 and roving 2, so that the roving 2 (preferably under the action of corresponding rough surface portions of the sleeve 7) is detected by the sleeve 7.
  • a separation unit which, for example, comprises a movable (preferably pivotable) separating element 26.
  • the separating element 26 is in this case brought into contact with the roving 2, preferably with the section thereof, which is located between the traversing unit 21 and the suction opening 20.
  • there is a local deceleration of the roving 2 in the area which comes into contact with the separation unit, so that the roving 2 finally tears between sleeve 7 and separation unit, since it continues to be wound by the rotating sleeve 7, d. H. with a tensile force is applied.
  • the roving 2 further supplied by the air-jet nozzle 3 is finally continuously wound onto the sleeve 7, wherein the traversing element 9 by a movement in the direction of the axis of rotation 8 of the sleeve 7 ensures that the roving 2 evenly on the sleeve 7 is wound up.
  • the air spinning machine 1 is finally in its normal, following the starting process of Vorgarnher too, normal operation in which the sleeve 7 is spooled with roving 2 as long, until the desired coil size is reached.
  • the 4 to 6 show in this context a part of the winding device 5 of the air spinning machine 1, which in principle comprises two (or more if necessary) sleeve holder 14, by means of which a respective coil is fixable.
  • Each of the sleeve holder 14 is displaceable by means of a sleeve drive 28 in a rotational movement in order to enable the individual sleeves 7, preferably independently of each other, to rotate.
  • the sleeve holders 14 are part of a sleeve changing device 15, which can also be put into rotary motion by means of a drive 13 (eg with the interposition of a belt 29 or other transmission means), the axis of rotation of the sleeve changing device 15 preferably being parallel to the axes of rotation 8 of the sleeves 7 runs.
  • Fig. 4 Now the stage is shown after the described startup process, in which the sleeve 7 is sufficiently bespult with roving 2 and a sleeve change is pending, at this time still supplied by the air-spinneret 3 roving 2, oscillated by the traversing element 9, wound on the sleeve is (the traversing movement takes place in principle in the direction of the double arrow).
  • the sleeve changing device 15 begins to rotate while the roving production continues, so that the wound sleeve 7, on which the roving 2 continues to be wound, is moved by the winding station 6 into the region of a sleeve removal point 12 (FIG. compare that 4 to 6 with the sleeve changing device 15 continuously rotating in a clockwise direction). At the same time an empty sleeve 7 is moved from the sleeve removal point 12 in the region of the winding unit 6.
  • the in Fig. 4 shown time of the sleeve change now shows Fig. 7 in a side view, with only the relevant sections for the following versions are shown.
  • the traversing element 9 is now moved upward such that it is outside the two points of inflection 10, 11 at which the traversing element 9 has completed a change of direction before the sleeve change.
  • the corresponding movement can be compared to the Fig. 7 and 8th remove.
  • This has the advantage that the roving 2 reaches the region of the adhesive strip 27 of the empty tube 7 and can be detected by it.
  • the roving 2 is no longer wound on the lying within the inflection points 10, 11 cylindrical portion of the bespulten sleeve 7. Rather, the roving 2 is wound around the above the first inflection point 10 lying conical region, which is done in a spiral manner.
  • the roving 2 is finally severed, preferably with the aid of the already mentioned separating element 26 (shown only schematically by a pair of scissors) between the spooled and empty tubes 7.
  • the end of the roving 2 located on the flushed sleeve 7 is finally wound onto the spooled sleeve 7, while the end of the roving 2 in contact with the empty sleeve 7 after the separation process is wound onto the empty sleeve 7 at the beginning of the changing operation (please refer Fig. 10 ).
  • the bespulte sleeve 7 can now be removed from the winding device 5 and replaced by an empty sleeve 7.
  • the winding device 5 is now ready for a new sleeve change, which is completed as soon as the located in the winding unit 6 sleeve 7 has reached the required coil size.
  • FIG. 11 a section of a possible embodiment of the said traversing element 9 in the form of a pressing finger already mentioned in the above description (US Pat. Fig. 11 represents a plan view).
  • the traversing element 9 comprises in principle a preferably rod-shaped wrapping section 30 around which the Roving 2 is wound several times during the winding operation on the sleeve 7 (the looping can be generated, for example, by rotating the wrapping section 30 about its longitudinal axis and / or by rotating a gripper 31 about said axis).
  • the traversing element 9 comprises a guide surface 32 for the roving 2, which is pressed during the winding process by means of a drive, not shown, against the sleeve 7 and the outermost layer of the roving 2 wound thereon.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Claims (10)

  1. Procédé d'exploitation d'une machine textile (1) servant à fabriquer une mèche (2), dans lequel
    - pendant la fabrication de la mèche, à l'aide d'au moins un moyen de consolidation (3), une mèche (2) présentant au moins une torsion de fabrication est fabriquée à partir d'un assemblage de fibres (4) amené au moyen de consolidation,
    - la mèche (2) fabriquée par le moyen de consolidation est bobinée à l'aide d'un bobinoir (5) et d'un élément de va-et-vient (9) sur un bobinot (7) disposé au niveau d'une tête de bobinage (6),
    - un changement de bobinot est effectué après que le bobinot (7) a été totalement ou partiellement couvert avec la mèche (2),
    - aussi bien le bobinot (7) en cours de bobinage que le bobinot (7) vide au début du changement de bobinot tournent autour d'un axe de rotation (8) pendant le changement de bobinot,
    - pendant le changement de bobinot, un dispositif de changement de bobinot (15) retire le bobinot (7) en cours de bobinage de la tête de bobinage (6) et le déplace dans la zone d'une station de retrait de bobinot (12), et un bobinot (7) vide au début du changement de bobinot est déplacé de la station de retrait de bobinot (12) à la zone de la tête de bobinage (6),
    - la fabrication de la mèche (2) n'est pas interrompue pendant le changement de bobinot, la mèche (2) fabriquée par le moyen de consolidation étant bobinée sur le bobinot (7) en cours de bobinage pendant le changement de bobinot jusqu'à ce qu'elle entre en contact avec le bobinot (7) vide dû au changement de bobinot,
    - la mèche (2) entre en contact avec une bandelette adhésive (27) du bobinot (7) vide, est saisie par la bandelette adhésive (27) et bobinée sur le bobinot vide, et la mèche (2) est sectionnée entre le bobinot (7) en cours de bobinage et le bobinot (7) vide, et
    - le débit de mèche du moyen de consolidation reste constant pendant le changement de bobinot ou diffère au maximum de 30 % du débit de mèche que présente le moyen de consolidation avant et/ou après le changement de bobinot,
    caractérisé en ce que, pendant le changement de bobinot, la mèche (2) est bobinée en spirale à l'aide de l'élément de va-et-vient (9) sur la mèche (2) se trouvant sur le bobinot (7), au niveau d'un cône supérieur ou inférieur du mandrin de bobine, la mèche étant en contact aussi bien avec le bobinot (7) en cours de bobinage qu'avec le bobinot (7) vide, et le contact ayant lieu en dehors de la bandelette adhésive (27) du bobinot (7) vide.
  2. Procédé selon la revendication précédente, caractérisé en ce qu'une filière à air (3) est mise en oeuvre en tant que moyen de consolidation, la mèche (2) présentant la torsion de fabrication étant fabriquée à partir de l'assemblage de fibres (4) à l'intérieur de la filière à air (3) à l'aide d'un courant d'air tourbillonnant.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que pendant le changement de bobinot, le débit de mèche du moyen de consolidation diffère au maximum de 25 % du débit de mèche que présente le moyen de consolidation avant et/ou après le changement de bobinot.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de va-et-vient (9) est déplacé dans les deux sens en parallèle aux axes de rotation (8) des bobinots (7).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la fréquence de va-et-vient de l'élément de va-et-vient (9) est augmentée au moins provisoirement dès que la mèche (2) entre en contact avec la bandelette adhésive (27) du bobinot (7) vide.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que pendant le changement de bobinot, la largeur de va-et-vient est réduite de telle sorte que la mèche (2) n'est bobinée sur le bobinot (7) vide que dans une zone de la bandelette adhésive (27).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que juste après le changement de bobinot, l'élément de va-et-vient (9) est déplacé dans les deux sens entre deux points de retour (10, 11) dont la distance mutuelle (A) est supérieure à la distance mutuelle (A) des points de retour (10, 11) entre lesquels l'élément de va-et-vient (9) a été déplacé dans les deux sens juste avant le changement de bobinot.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bobinot (7) en cours de bobinage et le bobinot (7) vide au début du changement de bobinot sont maintenus fixement par le dispositif de changement de bobinot (15) avant le changement de bobinot, et sont déplacés par un mouvement, de préférence une rotation, du dispositif de changement de bobinot (15) pendant le changement de bobinot.
  9. Machine textile (1) pour fabriquer une mèche (2), dans laquelle
    - la machine textile présente au moins un moyen de consolidation (3) à l'aide duquel une torsion de fabrication peut être appliquée à un assemblage de fibres (4) amené au moyen de consolidation,
    - la machine textile présente au moins un bobinoir (5) et un élément de va-et-vient (9) à l'aide desquels la mèche (2) peut être bobinée sur un bobinot (7),
    - le bobinoir (5) comprend au moins deux porte-tube (14) pouvant être mis en rotation, de préférence indépendamment l'un de l'autre, à l'aide d'un entraînement, et
    - les porte-tube (14) font partie d'un dispositif de changement de bobinot (15) à l'aide duquel les bobinots (7) maintenus par les porte-tube (14) peuvent être déplacés d'une tête de bobinage (6) à une station de retrait de bobinot (12) et/ou vice versa,
    caractérisée en ce que la machine textile présente au moins un dispositif de commande (13) réalisé pour exploiter la machine textile selon l'une quelconque des revendications précédentes.
  10. Machine textile selon la revendication 9, caractérisée en ce que le moyen de consolidation est réalisée comme une filière à air (3), la mèche (2) présentant la torsion de fabrication pouvant être fabriquée à partir de l'assemblage de fibres (4) à l'intérieur de la filière à air (3) à l'aide d'un courant d'air tourbillonnant.
EP15725863.3A 2014-05-08 2015-04-17 Machine textile et procédé pour faire fonctionner une telle machine Active EP3140440B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00697/14A CH709606A1 (de) 2014-05-08 2014-05-08 Verfahren zum Betrieb einer Textilmaschine, die der Herstellung von Vorgarn dient, sowie Textilmaschine.
PCT/IB2015/000507 WO2015170156A1 (fr) 2014-05-08 2015-04-17 Machine textile et procédé pour faire fonctionner une telle machine

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EP3140440A1 EP3140440A1 (fr) 2017-03-15
EP3140440B1 true EP3140440B1 (fr) 2019-09-04

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EP (1) EP3140440B1 (fr)
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WO (1) WO2015170156A1 (fr)

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CH709605A1 (de) * 2014-05-08 2015-11-13 Rieter Ag Maschf Textilmaschine zur Herstellung von Vorgarn sowie Verfahren zum Betrieb einer entsprechenden Textilmaschine.
CH709693A1 (de) * 2014-05-26 2015-11-30 Rieter Ag Maschf Verfahren zum Betreiben einer Textilmaschine sowie Textilmaschine zur Herstellung von Vorgarn.
JP7322331B2 (ja) * 2017-04-06 2023-08-08 宇部エクシモ株式会社 巻糸パッケージ及びその製造方法
CN110817581A (zh) * 2019-09-30 2020-02-21 中润科技股份有限公司 一种用于涤纶长丝的卷绕成形装置及其应用
CN111776856B (zh) * 2020-07-01 2022-02-08 兴惠化纤集团有限公司 一种纺丝卷绕机
US11518942B2 (en) 2020-09-28 2022-12-06 Chevron Phillips Chemical Company Lp Circular chemicals or polymers from pyrolyzed plastic waste and the use of mass balance accounting to allow for crediting the resultant products as circular

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EP0522255A1 (fr) * 1991-07-10 1993-01-13 Zinser Textilmaschinen GmbH Procédé pour sectionner une mèche d'une bobine de mèche sur des bancs à broche
EP1129976A2 (fr) * 2000-03-01 2001-09-05 Murata Kikai Kabushiki Kaisha Paquet de fil textile élastique et bobinoir pour fils textiles élastiques

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US20170247817A1 (en) 2017-08-31
JP6762928B2 (ja) 2020-09-30
WO2015170156A1 (fr) 2015-11-12
CN106414290A (zh) 2017-02-15
CH709606A1 (de) 2015-11-13
JP2017517653A (ja) 2017-06-29
EP3140440A1 (fr) 2017-03-15
CN106414290B (zh) 2019-12-13
US10472740B2 (en) 2019-11-12

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