EP3913121B1 - Automatische garnanspinnvorrichtung und verfahren dafür - Google Patents

Automatische garnanspinnvorrichtung und verfahren dafür

Info

Publication number
EP3913121B1
EP3913121B1 EP21166887.6A EP21166887A EP3913121B1 EP 3913121 B1 EP3913121 B1 EP 3913121B1 EP 21166887 A EP21166887 A EP 21166887A EP 3913121 B1 EP3913121 B1 EP 3913121B1
Authority
EP
European Patent Office
Prior art keywords
yarn
drafting
piecing
unit
spinning machine
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.)
Active
Application number
EP21166887.6A
Other languages
English (en)
French (fr)
Other versions
EP3913121A1 (de
Inventor
Srinivasan RAJASEKARAN
Jeganathan Pasupathy
Arulanandam THILIP KUMAR
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.)
Lmw Ltd
Original Assignee
Lmw Ltd
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Filing date
Publication date
Application filed by Lmw Ltd filed Critical Lmw Ltd
Publication of EP3913121A1 publication Critical patent/EP3913121A1/de
Application granted granted Critical
Publication of EP3913121B1 publication Critical patent/EP3913121B1/de
Active legal-status Critical Current
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/013—Carriages travelling along the machines

Definitions

  • the present invention relates to textile spinning machines.
  • the invention relates to an automatic yarn piecing apparatus for piecing broken yarn ends in ring spinning machines, compact yarn spinning machines etc. More particularly, the invention deals with handling as well as piecing of broken yarns in an automatic yarn piecing unit of textile ring spinning machines, and a method for piecing the broken yarns in the ring spinning machines.
  • ring spinning machines are used to produce yarn from fibres which are drafted and twisted and then wound on a cylindrical shell, known as cop or bobbin.
  • yarn breakage in the ring spinning machines is a common and frequent problem that requires continuous attention of the workforce.
  • the yarn breakage nowadays remains a major disadvantage in ring spinning machines which has forced huge number of workforce to continuously monitor the ring spinning machines throughout length of the machine frame.
  • the broken yarns have to be pieced manually and the yarn spinning sequence has to be restarted then and there after yarn breakage in order to avoid wastage of yarn.
  • automatic piecing devices are provided as an improvement towards the conventional techniques of manual piecing of fibres.
  • Such automatic piecing devices involve a robot or worker in a piecing vehicle or piecing device which has inbuilt drive units and supportive functional units, movable along the length of the ring spinning machine frame.
  • Such automatic piecing devices are required to advance towards the ring spinning machines for piecing operation and return to their original position after completion of the piecing operation.
  • Such known piecing arrangements practically fail to properly piece the broken yarn owing to various parameters such as yarn count, machine speed and humidity playing a major role while binding the broken yarn with delivery fibres during the piecing operation. Moreover, the failure of a particular piecing cycle is consequently carried on to further attempts for piecing the yarn repeatedly until completion of a successful piecing operation. This contributes in creation of a lot of yarn waste if there are many such occurrences throughout the machine length during a production period in a spinning mill.
  • US4545193 A relates to a fasciated spinning machine.
  • Said fasciated spinning machine comprises a yarn holding pipe connected to a suction source and a suction arm picking a yarn from a package surface.
  • DE 4119381 A1 discloses an automatic yarn piecing apparatus for a ring spinning machine.
  • EP0321017 A1 discloses a method and device for splicing of a broken yarn with roving inside an air race with the aid of various mobile pincer arms.
  • the present invention has been envisaged in view of the above-mentioned circumstances, and it is an object thereof to provide a novel and improved piecing arrangement for an automatic yarn piecing apparatus of textile ring spinning machines, compact spinning machines etc.
  • An object of the present invention is to provide an automatic yarn piecing apparatus capable of effectively piecing yarn to delivery fibre strands in ring spinning machines, and a method thereof.
  • Another object of the present invention is to provide an automatic yarn piecing apparatus capable of reducing yarn wastage, and a method thereof.
  • Another object of the present invention is to provide a reliable and efficient automatic yarn piecing apparatus capable of performing improved and accurate piecing of broken yarn ends, and a method thereof.
  • a ring spinning machine comprising at least one spinning station with a drafting unit and an automatic yarn piecing apparatus.
  • the automatic yarn piecing apparatus includes a lifting unit for lifting a broken yarn from cop of the ring spinning machine, a suction unit for accommodating the broken yarn lifted by the lifting unit, and a piecing unit for joining a tail end of the broken yarn to fibre strand drafted by a drafting unit of the ring spinning machine.
  • the piecing unit includes a positioning device for performing an over-piecing process to merge the tail end of the broken yarn to the fibre strand.
  • the positioning device is provided with a yarn joining device configured to move in horizontal and traverse directions with respect to the drafting unit to perform over-piecing.
  • the suction unit includes a tubular mouth for accommodating the tail end of the broken yarn before a drafting roller pair of the drafting unit.
  • the tail end of the broken yarn is accommodated in the tubular mouth by applying a negative pressure through the tubular mouth.
  • the piecing unit includes the yarn joining device configured to move in horizontal and traverse directions with respect to the drafting unit, by a set of first and second actuators, and a set of stoppers for limiting excess movement of the yarn joining device.
  • the actuators are pneumatic or hydraulic or screw rod type.
  • the yarn joining device is hinged at a fulcrum point, and includes a nose portion adapted to move the tail end of the broken yarn accommodated by the tubular mouth to a position in between the front rollers and the middle rollers suitable for the over-piecing process.
  • the yarn joining device along with carried tail yarn is moved left side of front top roller, moved towards top drafting rollers and moved in right direction to perform over-piecing for yarn breakage at left side drafting rollers. Further, the yarn joining device along with carried tail yarn is moved right side of front top roller, moved towards top drafting rollers and moved in left direction to perform over-piecing for yarn breakage at right side drafting rollers.
  • the piecing unit includes a cutter assembly mounted in proximity of the yarn joining device.
  • the cutter assembly performs a cutting operation for excess length of the broken yarn.
  • the cutter assembly includes a fixed blade member, a movable blade member, and a cutter assembly actuator.
  • the movable blade member performs a scissor action around a fulcrum joint with respect to the fixed blade member to cut the excess length of the broken yarn.
  • the automatic yarn piecing apparatus further includes a spindle brake actuating mechanism configured to apply brake to a spindle station during piecing operation of the broken yarn.
  • Another aspect of the present invention pertains to an automatic yarn piecing method for a ring spinning machine capable of effectively piecing yarn to delivery fibre strands in ring spinning machines, while reducing yarn wastage and performing improved and accurate piecing of broken yarn ends.
  • the method involves lifting a broken yarn from a cop of the ring spinning machine, accommodating the broken yarn lifted by the lifting unit, and joining a tail end of the broken yarn to a fibre strand drafted by a drafting unit of the ring spinning machine.
  • the automatic yarn piecing method also includes performing an over-piecing process to merge the tail end of the broken yarn to the fibre strand, by moving a yarn joining device in horizontal and traverse directions with respect to the drafting unit.
  • the automatic yarn piecing method also involves the steps of generating a negative pressure through the tubular mouth of the suction unit to enable the tubular mouth to accommodate the tail end of the broken yarn before the drafting roller pair of the drafting unit.
  • the yarn joining device is moved in horizontal and traverse directions with respect to the drafting unit, by a set of first and second actuators, and excess movement of the yarn joining device is limited by a set of stoppers.
  • a nose portion of the yarn joining device moves the tail end of the broken yarn accommodated by the tubular mouth to a position in between the front rollers and the middle rollers suitable for the over-piecing process.
  • the yarn joining device along with carried tail yarn is moved left side of front top roller, moved towards top drafting rollers and moved in right direction to perform over-piecing for yarn breakage at left side drafting rollers. Further, the yarn joining device along with carried tail yarn is moved right side of front top roller, moved towards top drafting rollers and moved in left direction to perform over-piecing for yarn breakage at right side drafting rollers.
  • the automatic yarn piecing method further includes the steps of cutting an excess length of the broken yarn after piecing.
  • the ring spinning machine (1) comprises at least a spinning station (2) where a supplied roving or unspun thread i.e. fibre federation (3) passes downwards to a drafting unit (4), equipped with a plurality of top and bottom drafting rollers (5a, 5b, 6a, 6b, 7a, 7b).
  • a weighting arm presses three top rollers (5a, 6a, 7a) on to the three bottom rollers (5b, 6b, 7b), which rotate at different speeds.
  • the back rollers (7a, 7b) rotate at a slow speed, while the intermediate pair of rollers (6a, 6b) rotates faster than the first pair of rollers.
  • the front rollers (5a, 5b) rotate at a very high speed. Because of these different speeds and the loads on the top rollers, the supplied roving (3), which is fed into the drafting unit (4), is drawn, and is considerably reduced in thickness.
  • the roving is given a twist by a ring with a rotating traveller and a rotating spindle, which are located underneath the drafting unit (4) system.
  • the twist creates friction between the fibres by which the strength of the fibre mass increases.
  • the fibre mass is now called yarn.
  • the yarn is wound on to a bobbin attached to the spindle.
  • the yarn is delivered through delivery rollers nip (5a, 5b) and then wound on a bobbin attached to the spindle to form a yarn cop (8).
  • the automatic yarn piecing apparatus (9) comes in front of the spinning station (2).
  • the automatic yarn piecing apparatus (9) includes a lifting unit for lifting the broken yarn from the cop (8), at least an insertion unit for inserting the yarn into a traveler, a top suction unit (10) for holding the lifted yarn, and a piecing unit (11) for joining the broken yarn end to the drafted fibres in the drafting unit (4).
  • a suction is created and by a tubular mouth (16) provided in the suction unit (10), yarn is lifted from the cop (8) and held in the mouth (16).
  • the yarn piecing unit (11) further comprises a yarn positioning device (12) and a support frame (13) for providing support to the yarn positioning device (12).
  • an advancing mechanism (not shown in figure) is provided for moving the said support frame towards and away from the drafting unit (4).
  • a broken yarn end (15') of the fibre strand is continuously carried by the suction force of a broken end collection tube (14) of the spinning station (2), whereas a tail yarn (15) goes along with the cop (8).
  • Fig. 3 of the present invention illustrates the manner in which the broken portion of the tail yarn from the cop is held in the tubular mouth portion.
  • a spindle brake actuating mechanism (not shown in figure) of the piecing apparatus (9) applies brake to the running spindle of the rotating cop (8).
  • a negative pressure i.e., a suction is applied though the tubular mouth (16) provided in the top suction unit (10) of the piecing apparatus (9). Therefore, a suction force is created and the tail yarn (15) from the cop (8) is carried to the open end of the mouth (16).
  • carried tail yarn (15) is held in tubular mouth (16) itself for a predetermined period during piecing action.
  • the piecing arm assembly (17) is held in home position.
  • the suction unit of (10) the automatic piecing apparatus (9) may include a single venturi jet or two venturi jets instead of large suction motors, for picking the yarn end from the cop (8).
  • the venturi jet may receive compressed air and blows air upstream of the cop (8).
  • the venturi jet may have a plurality of tapered inlets through which air is blown inside, thereby creating suction force inside the suction unit (10) in upward direction to lift the broken yarn end from the cop.
  • the compressed air leaving the venturi jet at the outlet creates suction force in upward direction which in turn picks the yarn end from the cop (8).
  • plurality of air jets may be provided to assist in lifting the broken yarn end from the cop (8).
  • the piecing arm assembly (17) moves from its home position to its working position i.e., towards the drafting unit (4), hence the tail yarn (15) held by tubular mouth (16) is also carried forward up to the drafting unit (4).
  • the tail yarn (15) is brought up to front drafting roller pair (5a, 5b) of the drafting unit (4).
  • the yarn positioning device (12) provided in piecing arm assembly (17) executes an over-piecing process to merge the tail yarn (15) with the drafting fibre strand between the drafting roller pairs (5a, 5b, 6a, 6b) and to complete the piecing action. Meanwhile, the spindle brake is released to resume the yarn winding operation onto the cop (8).
  • the term "over piecing” refers to a method of inserting the broken yarn into the drafting zone in which the fibres are being drafted and thereby merging the said broken yarn end to the drafting fibres itself.
  • Said yarn positioning device (12) is operated by a set of pneumatic/electrical or screw rod actuators. The actuators facilitate the movement of the said yarn positioning device in x-y-z directions, according to the requirement.
  • the piecing arm assembly (17) as shown comprises a piecing arm lever (18) which is provided with a yarn positioning device (12), wherein a yarn joining device (19) is provided for handling the yarn received from the tubular mouth (16) of the top suction unit (10). Said yarn joining device (19) is operated horizontally and traversely by using plurality of pneumatic/electrical or screw rod actuators.
  • the horizontal movement of the yarn joining device (19) herein refers to the movement parallel to the shafts on which the drafting rollers (5a, 5b, 6a, 6b, 7a, 7b) are mounted, wherein the shafts of each pair of rollers are parallel to each other.
  • the top rollers (5a, 5c, 6a, 6c, 7a, 7c) of each pair of roller may be mounted either on same shaft or on different shafts.
  • the horizontal movement is left to right movement or right to left movement, while traverse movement herein refers to movement in radial direction i.e., towards the roller or away from it.
  • Front end of yarn joining device (19) is provided with a nose (20) for holding the tail yarn and the other end is connected to a second actuator (22), while the center of said yarn joining device (19) is hinged at a fulcrum point (23).
  • a first actuator (21) is used to move the yarn joining device (19) in horizontal direction, which is parallel to drafting rollers shaft (24) and the second actuator (22) is used to move the yarn joining device in traverse or radial direction, which is perpendicular to drafting rollers shaft (24). Since the yarn joining device (19) is hinged at fulcrum point (23), the inclined angle extended position of second actuator (22) makes the yarn joining device (19) to move in traverse or radial direction, which is perpendicular to drafting rollers shaft (24) as mentioned. The lowering of or home position of second actuator (22) makes the yarn joining device (19) to return from drafting roller area.
  • the yarn positioning device (12) is mounted in such a way that the yarn joining device (19) can be traversed horizontally and radially with respect to the front drafting roller pair (5a, 5b).
  • the movement of said yarn joining device (19) towards the front drafting roller pair (5a, 5b) is shown in arrows for left side drafting rollers (5a, 6a) in Figure 7 and for right side drafting rollers (5c, 6c) in Figure 8 .
  • the excess movement of first pneumatic/electrical or screw rod actuator (21) can be controlled or limited by using a first stopper (21'), wherever required.
  • the movement of the first stopper (21') is controlled by another associated actuator (21"), which is vertically movable as shown in Fig. 5 .
  • second pneumatic/electrical or screw rod actuator (22) is controlled or limited by using another stopper (not shown).
  • a cutter assembly (25) and associated actuator (26) is mounted behind the yarn joining device (19) to carry out the scissor operation for cutting excess length of tail yarn (15) after piecing.
  • Said actuator (26) of yarn cutter assembly (25) is preferably a pneumatic device and/or hydraulic actuator or screw rod actuator.
  • the yarn joining device (19) along with carried tail yarn (15) to be moved left side of front top roller (5a) and this position is achieved by extending first actuator (21) to left direction.
  • the second actuator (22) lifts from home position to the retraction position and thus makes yarn joining device (19) along with yarn to move towards top drafting rollers (5a, 6a). It is in such a way that the nose (20) of yarn joining device (19) to reach the middle space between first top drafting roller (5a) and second top drafting roller (6a) .
  • the first actuator (21) is retracted to move the joining device (19) in right direction.
  • the yarn carried by the nose portion (20) of yarn joining device (19) merges with the drafting fibres of drafting rollers and piecing action is carried out as shown by arrows. Meanwhile the spindle brake is released to resume the yarn winding operation onto the cop. Subsequently the cutter assembly (25) provided at the rear side of yarn joining device (19) is actuated by cutter actuator (26) to cut the extra or remaining yarn after piecing. After this piecing operation, the said yarn joining device (19) return back to original or home position by reversing the corresponding first and second actuators (21, 22).
  • the yarn carried by the nose portion of yarn joining device merges with the drafting fibres of drafting rollers and piecing action is carried out as shown by arrows. Meanwhile the spindle brake is released to resume the yarn winding operation onto the cop. Then the cutter assembly (25) cuts the extra or remaining yarn after piecing. And thereafter the yarn joining device (19) return back to original or home position by reversing the corresponding first and second actuators (21, 22).
  • the cutter assembly (25) which is mounted on the yarn piecing arm assembly (17) comprises a fixed blade member (27), a movable blade member (28) and a cutter assembly actuator (26).
  • the movable blade member (28) closes and opens with respect to the fixed blade member (27) like a scissor action when the cutter assembly actuator (26) extends.
  • Said movable blade member (28) is of having a substantially V-shape wherein one end is connected to cutter assembly actuator (26) by means of a connecting plate.
  • the fulcrum joint (29) is provided to assist the scissor action (shown by arrow) of movable blade member (28) while the cutter assembly actuator (26) extends and retracts.
  • Fig. 9 shows the position of yarn piecing apparatus (9) after finishing the piecing operation according to the present invention wherein the tail yarn (15) from the cop (8) is joined together with the drafting fibre strand and the spinning operation continues. Now the piecing arm assembly (17) of the piecing apparatus (9) returned to original position and the apparatus is scheduled for next piecing cycle.
  • the piecing apparatus according to the present invention results in improved and accurate piecing of the broken yarn ends effectively as this method of over piecing is highly reliable and provides higher success rate.

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

Claims (9)

  1. Ringspinnmaschine (1), umfassend mindestens eine Spinnstation mit einer Streckeinheit (4) und einer automatischen Garnanspinnvorrichtung (9), wobei die automatische Garnanspinnvorrichtung (9) umfasst:
    eine Hebeeinheit, die konfiguriert ist, um ein gebrochenes Garn von einem Kop (8) der Ringspinnmaschine (1) zu heben;
    eine Saugeinheit (10), die angepasst ist, um das gebrochene Garn aufzunehmen, das von der Hebeeinheit angehoben wird, die Saugeinheit (10) eine rohrförmige Mündung (16) umfasst, die angepasst ist, um hinteres Ende (15) des gebrochenen Garns vor einem Streckwalzenpaar (5a, 5b) der Streckeinheit (4) der Ringspinnmaschine (1) aufzunehmen, indem ein Unterdruck durch die rohrförmige Mündung (16) angelegt wird; und
    eine Anspinneinheit (11), die konfiguriert ist, um das hintere Ende (15) des gebrochenen Garns mit einem Faserstrang zu verbinden, der von der Streckeinheit (4) der Ringspinnmaschine (1) verstreckt wird,
    wobei die Anspinneinheit (11) eine Positionierungsvorrichtung (12) umfasst, die angepasst ist, um einen Überanspinnprozess durchzuführen, indem das hintere Ende (15) des gebrochenen Garns in die Streckzone der Ringspinnmaschine eingeführt wird, in der die Fasern verstreckt werden, und dadurch das hintere Ende (15) des gebrochenen Garns mit dem Faserstrang verschmolzen wird, wobei die Positionierungsvorrichtung (12) mit einer Garnverbindungsvorrichtung (19) versehen ist, die konfiguriert ist, um sich in horizontaler und Querrichtung in Bezug auf die Streckeinheit (4) der Ringspinnmaschine zu bewegen, durch einen Satz von ersten und zweiten Aktuatoren (21, 22) vom pneumatischen oder hydraulischen oder Schraubenstangentyp, und einen Satz von Stoppern (21', 22") zum Begrenzen einer übermäßigen Bewegung der Garnverbindungsvorrichtung (19), und wobei die Garnverbindungsvorrichtung (19) an einem Drehpunkt (23) angelenkt ist und einen Nasenabschnitt (20) umfasst, der angepasst ist, um das hintere Ende (15) des gebrochenen Garns in eine Position zwischen den vorderen Walzen (5a, 5c) und den mittleren Walzen (6a, 6c) der Streckeinheit (4) der Ringspinnmaschine zu bewegen, um ein Überanspinnen durchzuführen.
  2. Ringspinnmaschine (1) nach Anspruch 1, wobei die Garnverbindungsvorrichtung (19) zusammen mit dem getragenen hinteren Garn (15) auf der linken Seite der vorderen oberen Walze (5a) der Streckeinheit (4) bewegt wird, zu den oberen Streckwalzen (5a, 6a) der Streckeinheit (4) bewegt wird und in der rechten Richtung bewegt wird, um ein Überanspinnen für einen Garnbruch an den linken Streckwalzen (5a, 6a) der Streckeinheit (4) durchzuführen.
  3. Ringspinnmaschine (1) nach einem der Ansprüche 1 und 2, wobei die Garnverbindungsvorrichtung (19) zusammen mit dem getragenen hinteren Garn (15) auf der rechten Seite der vorderen oberen Walze (5c) der Streckeinheit (4) bewegt wird, zu den oberen Streckwalzen (5c, 6c) der Streckeinheit (4) bewegt wird und in der linken Richtung bewegt wird, um ein Überanspinnen für einen Garnbruch an den rechten Streckwalzen (5c, 6c) der Streckeinheit (4) durchzuführen.
  4. Ringspinnmaschine (1) nach einem der Ansprüche 1 bis 3, wobei
    die Anspinneinheit (11) eine Schneidanordnung (25) umfasst, die in der Nähe der Garnverbindungsvorrichtung (19) montiert ist und angepasst ist, um einen Schneidvorgang für eine überschüssige Länge des gebrochenen Garns durchzuführen, wobei die Schneidanordnung (25) umfasst:
    ein feststehendes Klingenelement (27);
    ein bewegliches Klingenelement (28); und
    einen Schneidanordnungsaktuator (26),
    wobei das bewegliche Klingenelement (28) eine Scherenwirkung um eine Drehpunktverbindung (29) in Bezug auf das feststehende Klingenelement (27) durchführt, um die überschüssige Länge des gebrochenen Garns abzuschneiden.
  5. Ringspinnmaschine (1) nach einem der Ansprüche 1 bis 4, ferner umfassend:
    einen Spindelbremsenbetätigungsmechanismus, der konfiguriert ist, um eine Bremse auf eine Spindel des Kops (8) während des Anspinnens des gebrochenen Garns anzuwenden.
  6. Automatisches Garnanspinnverfahren für eine Ringspinnmaschine (1), umfassend die folgenden Schritte:
    Heben, durch eine Hebeeinheit, eines gebrochenen Garns von einem Kop (8) der Ringspinnmaschine (1);
    Aufnehmen, durch eine Saugeinheit (10), des gebrochenen Garns, das von der Hebeeinheit angehoben wird, und Erzeugen eines Unterdrucks durch eine rohrförmige Mündung (16) der Saugeinheit (10), um der rohrförmigen Mündung (16) zu ermöglichen, ein hinteres Ende (15) des gebrochenen Garns vor einem Streckwalzenpaar (5a, 5b) einer Streckeinheit (4) der Ringspinnmaschine aufzunehmen; und
    Verbinden, durch eine Anspinneinheit (11), des hinteren Endes (15) des gebrochenen Garns mit einem Faserstrang, der von der Streckeinheit (4) der Ringspinnmaschine (1) verstreckt wird,
    wobei der Schritt des Verbindens des hinteren Endes (15) des gebrochenen Garns mit dem verstreckten Faserstrang das Durchführen, durch eine Positionierungsvorrichtung (12), eines Überanspinnprozesses umfasst, indem das hintere Ende (15) des gebrochenen Garns in die Streckzone der Ringspinnmaschine eingeführt wird, in der die Fasern verstreckt werden, und dadurch das hintere Ende (15) des gebrochenen Garns mit dem Faserstrang verschmolzen wird, durch Bewegen einer Garnverbindungsvorrichtung (19) in horizontaler und Querrichtung in Bezug auf die Streckeinheit (4) der Ringspinnmaschine, durch einen Satz von ersten und zweiten Aktuatoren (21, 22); und Begrenzen einer übermäßigen Bewegung der Garnverbindungsvorrichtung (12) durch einen Satz von Stoppern (21', 22"),
    wobei der Schritt des Einführens durchgeführt wird, indem das hintere Ende (15) des gebrochenen Garns durch einen Nasenabschnitt (20) der Garnverbindungsvorrichtung (19) zu einer Position zwischen den vorderen Walzen (5a, 5c) und mittleren Walzen (6a, 6c) der Streckeinheit (4) der Ringspinnmaschine bewegt wird, um ein Überanspinnen durchzuführen.
  7. Verfahren nach Anspruch 6, wobei die Garnverbindungsvorrichtung (19) zusammen mit dem getragenen hinteren Garn (15) auf der linken Seite der vorderen oberen Walze (5a) der Streckeinheit (4) der Ringspinnmaschine bewegt wird, zu den oberen Streckwalzen (5a, 6a) der Streckeinheit (4) der Ringspinnmaschine bewegt wird und in der rechten Richtung bewegt wird, um ein Überanspinnen für einen Garnbruch an den linken Streckwalzen (5a, 6a) der Streckeinheit (4) der Ringspinnmaschine durchzuführen.
  8. Verfahren nach Anspruch 6, wobei die Garnverbindungsvorrichtung (19) zusammen mit dem getragenen hinteren Garn (15) auf der rechten Seite der vorderen oberen Walze (5c) der Streckeinheit (4) der Ringspinnmaschine bewegt wird, zu den oberen Streckwalzen (5c, 6c) der Streckeinheit (4) der Ringspinnmaschine bewegt wird und in der linken Richtung bewegt wird, um ein Überanspinnen für einen Garnbruch an den rechten Streckwalzen (5c, 6c) der Streckeinheit (4) der Ringspinnmaschine durchzuführen.
  9. Verfahren nach Anspruch 6, ferner umfassend den folgenden Schritt:
    Abschneiden, durch eine Schneidanordnung (25), einer überschüssigen Länge des gebrochenen Garns nach dem Anspinnen.
EP21166887.6A 2020-05-22 2021-04-06 Automatische garnanspinnvorrichtung und verfahren dafür Active EP3913121B1 (de)

Applications Claiming Priority (1)

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IN202041021597 2020-05-22

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CN118186641B (zh) * 2024-05-06 2025-12-16 浙江依蕾毛纺织有限公司 一种用于提高细纱机接头率的装置
CN119041066A (zh) * 2024-09-29 2024-11-29 哈尔滨工业大学 一种用于环锭纺纱生头的钢丝圈穿纱及绕接装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3413894A1 (de) * 1983-04-15 1984-10-25 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Verfahren zum ansetzen eines garnendes
IT1223531B (it) * 1987-12-18 1990-09-19 Savio Spa Procedimento e dispositivo per l'accoppiamento e il riattacco del filo allo stoppino in un filatoio ad anelli
DE4119381A1 (de) * 1991-06-12 1992-12-17 Zinser Textilmaschinen Gmbh Vorrichtung zum verbinden eines durch eine bedienvorrichtung bereitgestellten, mit einem kops einer spinnstelle einer spinnereimaschine verbundenen fadens mit einer ein streckwerk durchlaufenden lunte
JPH09183572A (ja) * 1996-01-05 1997-07-15 Murata Mach Ltd 紡績機の糸継ぎ装置
EP3556919B1 (de) * 2018-04-19 2024-08-21 Lakshmi Machine Works Ltd. Spleissvorrichtung mit einem arm für eine automatische spleissapparatur und spleissverfahren
EP3556918B1 (de) * 2018-04-20 2024-09-18 Lakshmi Machine Works Ltd. Garnhebevorrichtung für eine anspinnvorrichtung und verfahren dafür
EP3567142B1 (de) * 2018-05-10 2022-04-20 Lakshmi Machine Works Ltd. Garneinführanordnung für eine ringspinnmaschine

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