EP3186419B1 - Vorrichtung zur herstellung von umkleidetem garn - Google Patents

Vorrichtung zur herstellung von umkleidetem garn Download PDF

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Publication number
EP3186419B1
EP3186419B1 EP15754246.5A EP15754246A EP3186419B1 EP 3186419 B1 EP3186419 B1 EP 3186419B1 EP 15754246 A EP15754246 A EP 15754246A EP 3186419 B1 EP3186419 B1 EP 3186419B1
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EP
European Patent Office
Prior art keywords
yarn
roving
cladding yarn
cladding
bobbin
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Application number
EP15754246.5A
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English (en)
French (fr)
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EP3186419A2 (de
Inventor
Hans Wullschleger
Christian FINKEN
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Amsler Srl
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Amsler Srl
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Publication of EP3186419A2 publication Critical patent/EP3186419A2/de
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D02G3/367—Cored or coated yarns or threads using a drawing frame
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/18—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material stopping supply only

Definitions

  • the present invention relates to a device and a method for producing cladded yarn on a ring spinning frame.
  • the cladded yarn is produced in that a sliver of staple fibers passes a drawing unit in a ring spinning machine before it is spun into a yarn.
  • a second yarn is added which is foreseen to enwrap the staple fibers at least partially. Different positions of adding fibers are known.
  • US2013040523 was published in February 2013 in the name of The Japan Wool Textile Co. Ltd . It describes a heat-resistant flame-retardant protective suit fabric, which is formed of a spun yarn.
  • the spun yarn for forming the fabric is a two-fold yarn prepared by twisting a first yarn of a uniform blended spun yarn, which is covered by a second yarn on a ring spinning frame.
  • WO9409195 was published in April 1994 in the name of the Wool Research Organisation of New Zealand and describes a process and apparatus for producing a yarn comprising staple fibres twisted together with one or more filament or pre-spun yarns on ring or other types of spinning frames. A proportion of staple fibres are overfed into the structure to provide a bulky sheath of fibres twisted around a central core consisting of one or more filament or pre-spun yarns and a second proportion of the staple fibres.
  • DE102010051434 was published in May 2012 in the name of Zwickauer Kammgarn GmbH and is directed to a device which comprises different fiber material templates that are provided for different fiber materials.
  • a drafting roller is provided for distortion of a fiber material.
  • the fiber material which is detached from a clamping roller arranged at downstream side of the drafting roller, is then twisted into a first yarn.
  • a cover yarn is formed by supplying fiber material from a fiber material supply unit for enwrapping the first yarn.
  • WO2008/068294A1 discloses a device for producing fancy yarn which has a carrier yarn guide, which carries two carrier yarns at a defined distance a from one another in the running direction behind the delivery rollers of the drafting system, in the area of an exit point of the roving from the drafting system, the spinning triangle feed.
  • the carrier yarn guide is designed so that the distance between carriers is adjustable.
  • the carrier yarn guide has an outer guide and an inner guide.
  • the outer guide directs the carrier yarns around the drafting device and the inner guide is used for the actual feed to the spinning triangle.
  • the inner guide is designed as a bracket, which is arranged to be adjustable in angle and orientation about an axis via an adjusting screw.
  • the outer guide is arranged fixed on the axis.
  • One drawback of the prior art is that the process of forming the cladded yarn cannot be controlled in a sufficient manner which results in an inconsistent result with respect to quality. Furthermore, the devices known from the prior art do not offer the opportunity to take influence on the process as such on a ring spinning frame with many spindles. Furthermore, the devices known from the prior art do not allow to arrange the spindles in a dense manner.
  • the invention is directed to a device and a method for producing a cladded yarn based on a ring spinning machine. If appropriate, the device can be used in a similar way on any other type of spinning frame.
  • Per operative spindle i.e. spindle foreseen to produce cladding yarn according to the invention
  • the device comprises a drafting unit with several drafting rollers rotating with different rotational speed.
  • the fibers of a roving (sliver of unwound fibers), which passes through the drafting unit, are drawn in a defined manner before they are spun in a conventional manner to a yarn by a traveler revolving around the spindle and wound onto a bobbin which is arranged on the related spindle and which rotates at a lower speed then the traveler.
  • a cladding yarn is added to the spinning process in the region of the spinning triangle where the fibers exiting from the drafting unit are spun into a yarn.
  • the aim is to add the cladding fibers in a way that in the resulting cladded yarn they enwrap the yarn spun from the fibers of the roving.
  • a device for making of cladded yarn on a ring spinning frame comprises per operative spindle a first creel foreseen to hold at least one bobbin of roving and a second creel foreseen to hold at least one bobbin of cladding yarn. Furthermore, it comprises a draft control device suitable to adjust the draft of a cladding yarn removed from the bobbin of cladding yarn and before the cladding yarn enters the spinning process, respectively cladding process.
  • the draft control device is preferably designed to adjust the draft in the cladding yarn in a flexible manner.
  • the draft control device can be foreseen to provide a force to unwind the cladding yarn from the thereto related bobbin of cladding yarn and/or the deliver the cladding yarn to the spinning, respectively cladding process, where the cladding yarn is cladded around the already spun yarn made out of the roving.
  • several draft control devices can be interlinked to each other such that draft is adjustable simultaneously on different operative spindles.
  • the draft control device is designed to individually interrupt the feeding process of the cladding yarn per spindle, which may be advantageous e.g. in the case of maintenance.
  • the device may comprise a monitoring device to monitor the presence of the cladding yarn and to interrupt the supply of the roving to a related drafting unit if the cladding yarn is not present.
  • the cladding yarn is delivered to the spinning process, respectively the cladding process by an injector in the region of the spinning triangle of the spinning process of the roving.
  • the injector is arranged adjustable with respect to the drafting unit of the related spindle, respectively the spinning point, to precisely introduce the cladding yarn into the spinning process.
  • Good results can be achieved because the injector is adjustable with respect to at least two axis which are distanced with respect to each other. Depending on the design the at least two axis are arranged at an angle with respect to each other or are laying in a common plane.
  • a space saving arrangement can be obtained, when the second creel is arranged vertically above the first creel.
  • the second creel can be integrated in the first creel.
  • the cladding yarn is clamped between at least one drive shaft and a pulley as described hereinafter in an exemplary manner.
  • a pulley guiding means can be present which guides the pulley in lateral direction.
  • the pulley guiding means can be foreseen to lift up the pulley from the drive shaft, thereby individually interrupting the influence of the draft control unit on the cladding yarn. Additional details and variations of the draft control device are described hereinafter in connection with the drawings.
  • the draft control device comprises a first and a second disc arranged at a distance with respect to each other forming a circumferential channel by which the claddingyarn passes to adjust the draft of the cladding yarn.
  • the monitoring device may comprise a sensor to monitor the presence of the cladding yarn and an actuator to interrupt the supply of roving when the sensor indicates a faulty state of the cladding yarn.
  • the monitoring device can be left away, although in this case the spinning process is not interrupted automatically if a problem with the cladding yarn occurs.
  • the monitoring device is integrated in the draft control device.
  • the senor comprises a deflection pulley which is driven by the cladding yarn.
  • the deflection pulley is interconnected to a transducer which provides a signal depending on the rotation speed of the deflection pulley and/or the tension in the cladding yarn.
  • the actuator comprises a receiver suitable to receive and react upon the signal of the transducer, such that in case of a faulty status in the rotation speed of the deflection pulley and/or the tension in the cladding yarn, the supply of the roving is interrupted by the actuator.
  • the monitoring device may comprise an indicator which optically and/or acoustically and/or via a bus indicates a faulty status of the related spinning station.
  • the actuator may comprise or may be interconnected to a blade to interrupt the supply of the roving, e.g., by cutting the fibers of the roving.
  • the actuator comprises or is interconnected to a wedge, which is arranged in a displaceable manner and can be introduced between the entry rollers of the drafting unit in a defined manner. Thereby the supply of the roving can be interrupted in a secure manner.
  • the wedge can be driven by at least one roller of the drafting unit or a drive shaft therefore.
  • the actuator receives a signal from the sensor of the monitoring unit and then the actuator releases the wedge which is then moved between the entry rollers based on the rotation of the entry rollers.
  • the wedge thereby temporarily lifts the entry rollers apart from each other against the force of a spring.
  • the wedge achieves a final position, its movement is stopped by a block.
  • the wedge can be straight or curved, e.g., sitting on a drive shaft acting upon at least one entry roller.
  • the draft control device is arranged in a vertical direction below the bobbin of cladding yarn.
  • a fiber guiding means may be arranged between the bobbin of cladding yarn and the draft control device guiding the cladding yarn from the bobbin of cladding yarn to the draft control device in a precise manner.
  • an eyelet is arranged with respect to the moving direction of the cladding yarn before the draft control device for the cladding yarn taking influence on the interaction between the cladding yarn and the draft control device.
  • At least the part of the injector which is responsible to deliver the cladding yarn to the cladding process is arranged movable (travelling) in an oscillating manner with respect to the fiber movement in lateral direction, i.e., parallel to the length direction of the spinning frame.
  • This can e.g., be achieved in that the complete injector, if present the monitoring device and other guiding means for the cladding yarn are arranged travelling.
  • the travelling of the claddingyarn in lateral direction is synchronized with the travelling of the roving with respect to the rollers of the drawing unit. Thereby it is possible to avoid extensive local wear of the rollers for the drafting unit.
  • the rollers of the drafting unit can be operated at variable speed, e.g., in that the speed of the entry rollers is increased in a sudden manner and/or the speed of the delivery rollers is reduced in a sudden manner for a defined period of time before both speeds are adapted to their normal value again.
  • the supply of the fibers of the roving is altered such that the resulting yarn comprises thereto related slubs which are then cladded by the cladding yarn.
  • a method for making a cladded yarn is defined in claim 15.
  • the presence, respectively the status of the cladding yarn is monitored by a sensor of a monitoring device.
  • the sensor is interconnected to an actuator foreseen to interrupt the supply of the roving when a faulty status is indicated by the sensor, i.e., when the cladding yarn is not present.
  • the sensor of the monitoring device is preferably arranged between the injector and the bobbin of cladding yarn and the actuator between the entry rollers of the drawing unit and the bobbin of roving.
  • Figure 1 shows a device 1 for producing cladded yarn in a perspective view from above and the left.
  • Figure 2 shows the device 1 according to Figure 1 in a perspective view from above and the right.
  • Figure 3 shows detail E according to Figure 2.
  • Figure 4 is showing detail F of Figure 3 .
  • Figure 5 shows the device 1 according to Figure 1 in a front view and Figure 6 in a side view.
  • Figure 7 shows parts of the device in a reduced manner.
  • Figure 8 shows a monitoring device.
  • the shown device 1 incorporates, respectively is mounted on a ring spinning frame (not shown in detail) comprising several spindles arranged lateral to each other in a longitudinal direction of the ring spinning frame.
  • a ring spinning frame (not shown in detail) comprising several spindles arranged lateral to each other in a longitudinal direction of the ring spinning frame.
  • the ring spinning frame and details thereof are shown only when relevant for the description and understanding of the invention.
  • the ring spinning frame comprises a drafting unit 2 comprising several drafting rollers 3 rotating with different rotational speed with respect to each other.
  • the drafting unit 2 comprises a pair of entry rollers 4, at least one pair of intermediate rollers 5 and a pair of delivery rollers 6.
  • a roving 7 consisting of parallel not yet spun fibers (not shown in detail) is unwound from a bobbin of roving 8 passes through the drafting unit 2 before it becomes subject of the spinning process.
  • the fibers are drawn in a defined manner before they leave the drafting unit and are spun in a conventional manner into a yarn 8 by a traveler revolving on a ring around the spindle and wound onto a bobbin which is arranged on the spindle and which rotates at a lower speed then the traveler (not shown in detail).
  • the roving 7 has a variable thickness over its length, in the drawings the roving 7 is shown in an exemplary manner as individual line.
  • a yarn instead of a roving 7 in principle consisting of unwound fibers, it is possible to use alternatively or in addition a yarn instead which consists of spun or partially spun elastic and/or non-elastic fibers.
  • a bobbin of roving 8 is arranged vertically above at a distance from the drafting unit mounted on a first creel 10. From there, the roving 7 is guided to the drafting unit where it enters the above described process.
  • the device 1 comprises per spindle a bobbin of cladding yarn 11 which is arranged on a second creel 12.
  • the second creel 12 can be attached to or be integrated into the first creel 10.
  • the second creel 12 is arranged vertically above the first creel 10.
  • a cladding yarn 13 is unwound from the bobbin of cladding yarn 11 and is guided by guiding means 14 to a draft control device 15 which is normally arranged in a vertical direction above the drafting unit 2 but below the bobbins of roving 8.
  • the guiding means 14 of the here shown variation of the invention incorporates a tube 14 which helps to guide the cladding yarn from the bobbin of cladding yarn 11 to the draft control device 15.
  • the cladding yarn 13 is unwound from the bobbin of cladding yarn 11 over the top and enter the air tube 14 at the upper end of the bobbin of cladding yarn 11.
  • the air tube 14 simultaneously acts as holding device for the bobbin of cladding yarn 11. If appropriate the air tubes 14 can be at least temporarily charged with compressed air to convey a loose end of a claddingyarn 13 from the bobbin of claddingyarn 11 to the lower end of the air tube 14. This is in particular helpful when preparing the spinning process.
  • the draft control device 15 comprises at least one rotating drive shaft 16 which extends in longitudinal direction (x-direction) of the spinning frame and which interacts with more then one spindle.
  • the drive shaft 16 is mounted on cantilever arms 17 which are attached to a frame of a spinning machine. Other ways to support the at least one drive shaft are possible. Further embodiments will be described herein after.
  • the drive shaft 16 is driven by an actuator (not visible) at a speed which is adjustable to adjust the tension in the cladding yarn 13 and in relation to the production speed of the spinning frame.
  • the cladding yarn 13 is clamped between at least one drive shaft 16 and a pulley 18 which is supported by at least one drive shaft 16 and guided at least laterally by pulley guiding means 19.
  • the pulley 18 is supported by two drive shafts 16 arranged parallel to each other and rotating in principle at the same speed.
  • a first eyelet 20 is arranged upstream to the draft control device 15 making sure that the cladding yarn 13 is properly clamped between the pulley 18 and at least one drive shaft 16.
  • the pulley guiding means 19 can be foreseen to act as or form part of a pulley lift up device as schematically shown in Figure 2 . Therefore, the pulley guiding means 19 is attached to a retaining rod 21in a swiveling manner such that the pulley 18 can be lifted up from the drive shaft 16. This offers the advantage, that the spinning process can be individually interrupted perspindle.
  • the draft control device 15 may be designed to be responsible for the continuous and accurate feeding of the claddingyarn 13 to the spinning, respectively cladding process where the cladding yarn is cladded around the already spun yarn 9. Therefore the draft control device 15 does not only control the draft in the cladding yarn but also provides the force to unwind the cladding yarn from the related bobbin with claddingyarn and delivery of the cladding yarn 13 to the injector 27.
  • the cladding yarn 13 is clamped between the at least one drive shaft 16 and the pulley 18. The resulting force is at least partially responsible to pull the cladding yarn 13 off from the bobbin of cladding yarn 11 along the guiding means 14 and if present across other guiding means.
  • Figure 4 shows in a schematic manner how the cladding yarn 13 is cladded around the spun fibers of the roving 7 forming the cladded yarn 9.
  • the cladding takes place when the fibers of the roving 7 are already spun to a yarn.
  • the draft control device 15 may comprise alternatively or in addition two discs (not shown in detail) which are arranged parallel to each other at a certain distance forming a circumferential channel.
  • the two discs are foreseen to clamp the cladding yarn 13 in a defined manner in between the two discs.
  • Each disc may comprise grooves which are arranged in lateral direction, and which are aligned with respect to the grooves of the opposite disc. By adjusting the distance between the two discs, the resistance exerted on the cladding yarn 13 can be adjusted. If required, the discs can be actively driven by at least one drive shaft 16 as described above.
  • the cladding yarn 13 interacts with a monitoring device 22 which interrupts the supply of the roving 7 when the supply of the cladding yarn 13 is interrupted.
  • the monitoring device 22 is fully mechanical and comprises a roll 23 which is mechanically interconnected to a blade 24 by a lever 25.
  • the lever 25, the thereto connected roll 23 and the blade 24 are attached in a swiveling manner to a holding frame 26.
  • the roll 23, the lever 25 and the thereto interconnected blade 24 can be moved between a closed and an open position, whereby the in the open position the roving 7 can freely pass across the monitoring device 22 and in the closed position the blade 24 is pressed against the holding frame 26 and thereby interrupts the supply of the roving 7 to the drafting unit.
  • Good results may be achieved by an adopted version of the monitoring device as described in WO2010/006955 of the same applicant.
  • the roll 23 acts as sensor as it measures the tension in the cladding yarn 13.
  • the blade 24 acts as actuator which is interconnected via the lever 25 to the sensor. Therefore, the actuator interrupts the supply of the roving 7 when the tension in the cladding yarn falls below a defined level.
  • each monitoring device 22 comprises a sensor which monitors the presence of the cladding yarn 13 and if not present or faulty, interrupts the supply of the roving 7 to the drafting unit 2.
  • the monitoring device 22 may comprise an indicator which optically and/or acoustically and/or via a bus indicates a faulty status of the related spinningstation.
  • the draft control device 15 of the shown variation comprises a first and a second drive shaft 16 arranged parallel to each other extending in longitudinal direction (x-direction) of the spinning frame (not shown in detail) and rotating simultaneously around their axis in the direction of an arrow A.
  • the first and the second drive shaft 16, which are in Figure 6 shown only partially, are supported by a cantilever 17 which is attached directly or indirectly to the spinning frame (not shown in detail). Of the cantilever 17 only half is shown, such that the inside becomes visible.
  • each of the drive shafts 16 are supported inside the cantilever 17 by a first and a second bearing 31, 32 having parallel axis of rotation but are arranged at an angle ⁇ as shown in the drawing.
  • the angle ⁇ is in the shown variation in the range of 125° to 175° and prevents the first and second drive shaft to jump of from the bearings 31 in an unwanted manner.
  • the first and the second drive shaft 16 are composed from segments which are put together (i.e., interconnected to each other) by bushings 33.
  • the bushings 33 form in the shown variation on one hand the interconnection (linkage) between two segments of the drive shafts 16 (only one shown) and on the other hand provide a bearing surface 34 on the outside which interacts with the bearings 31, 32 attached to the cantilever 16. Via the bushings 33 the drive shafts can be interconnected to each other providing modular extensible solution.
  • An outer surface 35 of the drive shafts 16 can be equipped with a friction increasing features such as knurls (not shown in detail).
  • the drive shafts 16 are foreseen to receive a pulley 18 which sits between the two drive shafts 16 and rotates in the opposite direction.
  • the pulley 18 comprises a circumferential running surface 36 which, if required, can be made out of a traction increasing material such as rubber to prevent unwanted slip.
  • cladding yarn 13 runs between at least one of the drive shafts 16 and the pulley 18 which is foreseen to press the cladding yarn 13 in a controlled manner against the at least one drive shaft 16 and thereby to adjust the draft of the cladding yarn.
  • a pulley guiding means 19 (as e.g., shown in Figure 1 ) can be foreseen.
  • the device 1 comprises per operating spindle an injector 27 which in the invention is arranged in moving direction of the roving 7 behind the delivery rollers 6 of the drafting unit 2.
  • the injector 27 comprises a first and a second bail 28, 29 which are arranged at a distance with respect to each other and which serve to deliver the cladding yarn 13 to the spinning process, respectively the cladding process.
  • the first and the second bail 28, 29 are mounted to a holder 30 which is adjustable with respect to the position where the cladding yarn 13 is introduced into the spinning process.
  • the holder 30 is itself mounted on an arm 37 which an itself be arranged swiveling with respect to a mount 38 interconnected to a fastening bar 39 which can be arranged oscillating in x-direction along with the monitoring device 22 which is attached to the same fastening bar 39.
  • the oscillation movement of the injector 27, here parallel to the x-direction, is schematically indicated by arrow 40.
  • the first and the second bail 28, 29 are arranged at an angle of approximately 90° with respect to each other. Other arrangements are possible if required, as long as the introducing of the cladding yarn 13 takes place at the right position.
  • the holder 30 shown in the examples is made out sheet metal. Alternatively, or in addition, the holder can be made out of injection molded plastic and/or bent wire.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (15)

  1. Vorrichtung zur Herstellung eines ummantelten Garns, wobei die Vorrichtung zur Verwendung an einem Ringspinnrahmen geeignet ist und umfasst:
    - ein erstes Spulengestell (10), das dazu vorgesehen ist, wenigstens eine Spule (8) eines Vorgarns (7) zu halten;
    - ein zweites Spulengestell (12), das dazu vorgesehen ist, wenigstens eine Spule (11) eines Ummantelungsgarns (13) zu halten;
    - eine Zugeinheit (2), die mehrere Walzen (3, 4, 5, 6) umfasst, durch die die Fasern des Vorgarns (7) verlaufen,
    - eine Zugsteuervorrichtung (15), die geeignet ist, den Zug des Ummantelungsgarns (13) vor dem Eintritt in den Spinnprozess einzustellen;
    - einen Injektor (27), der so konfiguriert ist, dass dann, wenn die Vorrichtung an einem Ringspinnrahmen befestigt ist, der Injektor in dem Bereich eines Spinndreiecks einer zugehörigen Spindel des Ringspinnrahmens angeordnet ist, um das Ummantelungsgarn (13) so in den Spinnprozess einzuführen, dass es um ein Garn gewickelt wird, das in dem Bereich des Spinndreiecks, in dem die Fasern, die aus der Zugeinheit (2) austreten, zu einem Garn gesponnen werden, aus dem Vorgarn (7) gesponnen wird,
    - wobei wenigstens ein Teil des Injektors (27), der verantwortlich ist, das Ummantelungsgarn dem Ummantelungsprozess seiner zugehörigen Spindel zuzuführen, schwingungsfähig beweglich in Bezug auf die Zugeinheit (2) in einer Richtung parallel zu der Richtung der Achsen der Zugwalzen (3, 4, 5, 6), die der Richtung des Ringspinnrahmens entspricht, wenn die Vorrichtung an einem Ringspinnrahmen befestigt ist, und synchron mit einer Bewegung des Vorgarns, das aus der Zugeinheit (2) austritt, angeordnet ist,
    - wobei der Injektor (27) einen ersten Bügel (28) und einen zweiten Bügel (29) zum Zuführen des Ummantelungsgarns (13) umfasst, wobei der erste Bügel (28) und der zweite Bügel (29) in einem Abstand zueinander angeordnet sind und an einer Halterung (30) montiert sind, die in Bezug auf die Position, bei der das Ummantelungsgarn (13) in den Spinnprozess eingeführt wird, eingestellt werden kann, wobei der Injektor (27) in Bezug auf wenigstens zwei Drehachsen, die parallel zu der Richtung der Achsen der Zugwalzen (3, 4, 5, 6) sind, die der Richtung des Ringspinnrahmens entspricht, wenn die Vorrichtung an einem Ringspinnrahmen befestigt ist, und die in Bezug aufeinander beabstandet sind, eingestellt werden kann, und
    - wobei die einstellbare Halterung (30) selbst an einem Arm (37) montiert ist, der in Bezug auf eine Befestigung (38), die mit einer schwingenden Befestigungsstange (39) verbunden ist, die in der Richtung parallel zur Richtung des Ringspinnrahmens schwingt, drehbar angeordnet ist.
  2. Vorrichtung nach Anspruch 1, wobei eine Überwachungsvorrichtung (22) das Vorhandensein des Ummantelungsgarns (13) überwacht und die Zufuhr des Vorgarns (7) zu der Zugeinheit (2) unterbricht, falls kein Ummantelungsgarn vorhanden ist.
  3. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die zweite Spulenhalterung (12) über der ersten Spulenhalterung (10) angeordnet ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die zweite Spulenhalterung (12) in die erste Spulenhalterung (10) integriert ist.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei in der Zugsteuervorrichtung (15) das Ummantelungsgarn (13) zwischen wenigstens einer Antriebswelle (16) und einer Rolle (18) eingeklemmt ist.
  6. Vorrichtung nach Anspruch 5, wobei ein Rollenführungsmittel (19) vorhanden ist, das die Rolle (18) in einer seitlichen Richtung führt.
  7. Vorrichtung nach Anspruch 6, wobei das Rollenführungsmittel (19) die Rolle (18) von der Antriebswelle (16) hochheben kann.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Zugsteuervorrichtung (15) eine erste und eine zweite Scheibe umfasst, die in einem Abstand zueinander angeordnet sind, die einen Umfangskanal bilden, durch den das Ummantelungsgarn (13) verläuft, um den Zug des Ummantelungsgarns (13) einzustellen.
  9. Vorrichtung nach einem der Ansprüche 2 bis 8, wobei die Überwachungsvorrichtung (22) einen Sensor, um das Vorhandensein des Ummantelungsgarns zu überwachen, und einen Aktuator, um die Zufuhr des Vorgarns (7) zu unterbrechen, wenn der Sensor einen Fehlerzustand des Ummantelungsgarns (13) anzeigt, umfasst.
  10. Vorrichtung nach Anspruch 9, wobei der Sensor eine Umlenkrolle umfasst, die mit einem Signalgeber verbunden ist, der in Abhängigkeit von der Drehzahl der Umlenkrolle ein Signal bereitstellt, und wobei der Aktuator einen Empfänger umfasst, der das Signal des Signalgebers empfangen und darauf reagieren kann, so dass im Fall eines Fehlerzustands die Zufuhr des Vorgarns durch den Aktuator unterbrochen wird.
  11. Vorrichtung nach einem der Ansprüche 9 oder 10, wobei der Aktuator eine Klinge (24) umfasst oder damit verbunden ist, um die Zufuhr des Vorgarns (7) zu unterbrechen.
  12. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Zugsteuervorrichtung (15) in einer vertikalen Richtung unter der Spule (11) des Ummantelungsgarns (13) angeordnet ist.
  13. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei Faserführungsmittel zwischen der Spule (11) des Ummantelungsgarns (13) und der Zugsteuervorrichtung (15), die das Ummantelungsgarn (13) von der Spule (11) des Ummantelungsgarns (13) zur Zugsteuervorrichtung (15) führt, angeordnet sind.
  14. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei eine Öse (20) in Bezug auf die Bewegungsrichtung des Ummantelungsgarns (13) vor der Zugsteuervorrichtung (15) für das Ummantelungsgarn (13) angeordnet ist.
  15. Verfahren zur Herstellung eines ummantelten Garns mit einer Vorrichtung nach einem der Ansprüche 1 bis 14 auf einem Ringspinnrahmen, wobei das Verfahren die folgenden Verfahrensschritte umfasst:
    - Bereitstellen einer Spule (8) eines Vorgarns (7) und einer Spule (11) eines Ummantelungsgarns (13);
    - Zuführen des Vorgarns (7) von der Spule (8) des Vorgarns (7) zu der Zugeinheit (2) der Vorrichtung (1), wobei die Zugeinheit (2) ein Paar Eintrittswalzen (4) und ein Paar Zuführwalzen (6) umfasst;
    - Ziehen des Vorgarns (7) in einer definierten Weise zwischen den Eintrittswalzen (4) und den Zuführwalzen (6) der Zugeinheit (2);
    - Spinnen der Fasern, die durch die Zuführwalzen (6) aus der Zugeinheit (2) austreten, zu einem Garn (9), und Wickeln des Garns (9) auf eine Spule;
    - Zuführen des Ummantelungsgarns (13) von der Spule (11) des Ummantelungsgarns (13) zum Injektor (27), der in dem Bereich des Spinndreiecks einer zugehörigen Spindel des Ringspinnrahmens angeordnet ist,
    - Einführen des Ummantelungsgarns (13) in den Spinnprozess in einem Bereich, in dem das Vorgarn (7) aus der Zugeinheit (2) austritt, wobei der Schritt des Einführens des Ummantelungsgarns ausgeführt wird, während der Injektor (27) in Bezug auf die Zugeinheit (2) in einer Richtung parallel zu der Richtung des Spinnrahmens und synchron mit der Bewegung des Vorgarns, das aus der Zugeinheit (2) austritt, schwingt,
    - Einstellen des Zugs in dem Ummantelungsgarn (13) durch eine Zugsteuervorrichtung (15) in einem Bereich zwischen der Spule (11) des Ummantelungsgarns (13) und dem Injektor (27), und
    - Einstellen des Injektors (27) in Bezug auf wenigstens zwei Drehachsen, die parallel zu der Richtung des Ringspinnrahmens sind, und die in Bezug aufeinander beabstandet sind.
EP15754246.5A 2014-08-28 2015-08-27 Vorrichtung zur herstellung von umkleidetem garn Active EP3186419B1 (de)

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CH13012014 2014-08-28
PCT/EP2015/069644 WO2016030462A2 (en) 2014-08-28 2015-08-27 Device for producing cladded yarn

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CN109518331A (zh) * 2018-12-27 2019-03-26 山东宏业纺织股份有限公司 一种包芯纱生产装置及其生产方法
CN113944001B8 (zh) * 2021-11-06 2023-06-16 诸暨宝立普自动化设备制造有限公司 一种带有防护功能的织缝翻一体袜机

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JP2004036016A (ja) * 2002-07-01 2004-02-05 Toyobo Co Ltd 複合弾性糸
WO2008068294A1 (de) * 2006-12-05 2008-06-12 Amsler Tex Ag Vorrichtung und verfahren zum zuführen von flammen auf ringspinnmaschinen
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CN106687628B (zh) 2020-02-21
WO2016030462A2 (en) 2016-03-03

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