EP2918534A1 - Spinning machine and method for transferring a yarn to a piecing device - Google Patents
Spinning machine and method for transferring a yarn to a piecing device Download PDFInfo
- Publication number
- EP2918534A1 EP2918534A1 EP15157689.9A EP15157689A EP2918534A1 EP 2918534 A1 EP2918534 A1 EP 2918534A1 EP 15157689 A EP15157689 A EP 15157689A EP 2918534 A1 EP2918534 A1 EP 2918534A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- spinning
- guide
- winding
- piecing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
- B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
- B65H63/036—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/003—Arrangements for threading or unthreading the guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/006—Traversing guides
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- 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
- D01H15/002—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for false-twisting spinning machines
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/48—Piecing arrangements; Control therefor
- D01H4/50—Piecing arrangements; Control therefor for rotor spinning
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- 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
Definitions
- the present invention relates to a method for transferring a yarn produced in a spinning station of a spinning machine to a piecing apparatus for the purpose of re-spinning.
- the spinning unit is assigned for winding the yarn on a spool a winding device with a changeable yarn guide.
- the yarn production is selectively interrupted and the spinning station controlled stopped, the end of the yarn produced is after the still etches at a defined position in the yarn path in front of the winding device.
- the yarn is unwound from the spool and rewound before being re-spun contrary to its regular take-off direction.
- the invention relates to a spinning machine with at least one spinning station for producing a yarn, with at least one of the spinning station associated winding device for winding the yarn on a spool, the winding device comprises a changierbaren yarn guide, with a control unit, by means of which the spinning station is controlled shutdown, and with a piecing device for re-spinning the yarn.
- the free end of the yarn is taken up by a service device that is usually movable along the spinning frame and prepared for re-spinning. Subsequently, the yarn end is again brought into contact with and connected to a fiber material fed to the spinning station, so that the yarn production process can be resumed.
- the bobbin-side yarn end usually runs on the still-rotating bobbin.
- the yarn end must therefore first be visited, for example, by means of a suction nozzle on the bobbin surface in order to be able to transfer it to the piecing device.
- the search for the yarn end is comparatively time consuming and sometimes has to be done several times until finally a successful piecing process can be performed.
- the DE 10 2011 053 811 A1 suggests, therefore, in the case of targeted interruptions of the spinning process, for example, in the detection of a yarn defect by a yarn monitoring unit to put the relevant spinning station controlled to silence.
- the conveying speeds of the various conveyors of the spinning station such as delivery unit, take-off device and winding are reduced to a standstill and thereby interrupt the yarn production process.
- the bobbin-side thread end is thereby no longer wound onto the bobbin, but remains due to the controlled shutdown essentially in its regular thread course, which it occupies during the regular yarn manufacturing process.
- the end of the yarn is thus after stopping at a defined position, so that it can be absorbed by the piecing without a complex yarn searching operation.
- the object of the present invention is therefore to propose a method for transferring a yarn to a piecing device, by means of which damage to the yarn and formation of a lap are avoided can. Furthermore, a corresponding spinning machine to be proposed.
- the yarn production is purposefully interrupted and the spinning station is stopped in a controlled manner.
- the spinning station is associated with a changeable thread guide for winding up the yarn on a bobbin of a winding device.
- After the controlled shutdown is one end of the yarn produced at a defined position in the yarn path in front of the winding device.
- the yarn is unwound from the spool and rewound before being re-spun contrary to its regular take-off direction.
- the yarn Before being rewound, the yarn is now lifted out of the yarn guide by means of a spinning device's own handling device, in particular a thread lifter, and only then is the rewinding of the yarn started. After rewinding when the thread guide is lifted out of the yarn, the yarn is transferred to the piecing device. In a targeted spin interruption, as is done for example by a monitoring unit for yarn monitoring when a yarn fault occurs, the yarn is between its yarn end and its casserole point on the bobbin essentially in its regular yarn path, which it also occupies during the spinning process.
- a spinning device's own handling device in particular a thread lifter
- the yarn By lifting the yarn out of the yarn guide, which can be located in any position within the Spul Schemes after stopping, the yarn can now be safely rewound from the spool, without causing damage or thread breakage of the thread through the yarn guide. Since now the rewinding of the thread eliminates the deflection by the thread guide, the risk of winding formation on rotating parts of the spinning machine is also reduced.
- a corresponding spinning machine has at least one spinning station for producing a yarn, and at least one winding device associated with the spinning station for winding up the yarn on a spool.
- the winding device further comprises a changeable yarn guide and a control unit, by means of which the spinning station is controlled shutdown.
- a spinning station own handling device is arranged on the spinning machine. By means of this handling device, the yarn can be transferred to a piecing device after the yarn has been lifted out and rewound.
- a piecing device movable along the spinning stations of the spinning machine is used on such a spinning machine.
- a thread take-up preferably extending over the entire width of the winding device is arranged.
- the thread lifter can be moved from a rest position, in which it is outside the regular yarn path of the yarn, in a working position, in which he positioned the yarn above the yarn guide. It is advantageous in a method for rewinding and transferring a yarn to a piecing device when the thread lifter for lifting the yarn out of the thread guide is pivoted from its rest position into a working position in which it positions the yarn above the thread guide.
- the thread lifter can thereby be arranged to save space at the spinning station and are driven in a simple manner. If the thread lifter extends over the entire winding width of the winding device, so it is still possible to lift the yarn at any point where the yarn guide has stopped, from this. It is therefore not necessary the To move yarn guide in a certain position to lift the yarn out.
- the handling device and the thread guide each have a single drive and preferably act together for transferring the yarn to the piecing device.
- the yarn guide can be moved after lifting the yarn by means of its single drive in a simple manner in a position outside the winding area of the winding device, in which no collisions with the yarn are to be feared during rewinding. Due to the interaction of the individually drivable yarn guide with the yarn lifter, the yarn can be brought into a defined transfer position, in which the piecing device can take over the yarn, without having to go to the coil surface consuming this.
- the yarn guide is moved to a parking position on the edge or outside of the winding area of the winding device. The rewinding of the yarn thus takes place in the parking position befindlichem yarn guide.
- the spun yarn is monitored by means of a yarn monitoring unit and the spinning station is stopped in a controlled manner upon detection of a yarn defect.
- the spinning station will thereby advantageously reduced by reducing the conveying speeds of the conveying elements of the spinning station such as the extraction device, winding device and delivery device to its standstill. It is also advantageous if, after the controlled shutdown of the spinning station, the yarn is rewound and a defective piece of yarn is separated.
- the method according to the invention for rewinding and transferring a yarn end can be used particularly advantageously, since larger lengths of the yarn must be rewound from the reel in order to clean the faulty yarn piece.
- the method is advantageous not only in the cleaning of a defective piece of yarn, but also in other piecing operations in which the spinning station has been stopped in a controlled manner.
- a controlled shutdown with a targeted interruption of yarn production even in case of power failure or shutdown of the machine may be useful.
- a controlled shutdown can take place before a bobbin change or a change of the fiber material template. In this case, only a small piece of the yarn is rewound and separated before Wiederanspinnen in order to prepare the newly created yarn end for the subsequent piecing process can.
- the individually driven yarn guide on a catcher for independently picking up the yarn can be formed, for example, as a slightly upwardly projecting catch tab.
- the yarn guide is moved from the parking position along the winding width of the winding device in order to insert the yarn into the yarn guide.
- the thread lifter was previously already returned to its rest position to allow the thread guide the process along the winding area.
- the thread guide is moved with the inserted yarn in a transfer position for the piecing.
- the piecing device therefore only has to approach the always same, predetermined transfer position in order to pick up the yarn. Therefore, a simple hook is sufficient for receiving the yarn through the piecing device, for example.
- receiving devices extending over the entire winding width such as a suction nozzle, were required to receive the yarn at an undefined position along the winding area.
- the thread guide is moved to a parking position on the edge or outside the winding area of the winding device.
- the following piecing can then be performed by the piecing without this would be hindered by the thread guide and without the risk of damage to the yarn by collisions with the thread guide.
- the thread lifter is returned to its rest position and the piecing process is carried out.
- a spinning machine according to the invention it is finally advantageous if it has a control and / or regulating unit which is designed to operate the spinning machine according to one or more steps of the prescribed method.
- FIG. 1 shows a trained as an air spinning machine spinning machine 16 in a schematic side view.
- the spinning machine 16 comprises in the usual way a spinning station 1, in which present as a spinning element 21 an air spinning nozzle is arranged, a fiber material supply 20, which is designed here as a drafting device, a take-off device 7 for the spun yarn 5 and a winding device 8 for winding the spun yarn ,
- the spinning station 1 is thereby supplied at its input 2 by a delivery device 6, in this case a delivery roller pair of the drafting system, a stretched by the drafting fiber material 3.
- the fiber material 3 is spun in the spinning element 21 by means of an air flow to a yarn 5, which is withdrawn at an output 4 of the spinning station 1 by means of the take-off device 7, which in the present case comprises a take-off roller pair 12.
- the withdrawn yarn 5 is on a balancing bracket 11 by means of a traversing device 24 in a likewise known manner on a spool 18 wound, which is rotatably mounted in a creel 14 on the spinning machine 1.
- the traversing device 24 includes a yarn guide 23, which has a single drive 22.
- the bobbin 18 preferably also has a single drive and, as shown here, can be driven by means of a winding roller 15 or by means of a direct drive.
- the spinning machine 1 has a yarn monitoring unit 9, which monitors one or more yarn parameters and causes an interruption of the yarn production when a fault occurs in the yarn 5 produced.
- the interruption of the yarn production is not carried out by a cut, which would inevitably lead to the resulting end 10 of the yarn produced would accrue to the cheese 18, but by means of a targeted shutdown of the spinning station 1, as shown in the in the DE 10 2011 053 811 A1 as well as the DE 10 2011 053 812 A1 is described.
- the delivery speeds of the delivery device 6, the discharge device 7 and the winding device 8 are not abruptly stopped, but gradually reduced to a standstill, whereby the spinning process is interrupted and a yarn end 10 is formed. Due to the gradual reduction of the speeds while the yarn 5 remains between its severed end 10 and its casserole point 29 substantially in its regular yarn path, which it also occupies during yarn production.
- the yarn end 10 is shown in dashed lines in the present illustration and can be, for example, by means of a vacuum-loaded yarn storage 13 (also shown in dashed lines) recorded and fixed.
- a vacuum-loaded yarn storage 13 also shown in dashed lines
- the yarn 5 is now rewound against its regular take-off direction, which is symbolized by the arrow A, sucked into the yarn storage 13 and can then be separated by means of a separation unit 25, which in turn new end 10 of the yarn 5 is created.
- This can be brought in a known manner by a piecing either in or outside the spinning station 1 with the fiber material 3 in contact to be spun again.
- Such a targeted interruption of the yarn production with a controlled shutdown of the spinning station can be done in the manner described above not only to clean out a faulty Garn GmbHs, but also before switching off the spinning machine 16 or a power failure. In this case, only a small piece of the yarn 5 is rewound, separated, prepared for re-spinning and transported in the direction of the spinning station 1 before re-spinning.
- the yarn store 13 need not necessarily be arranged at the position shown, but could also be above the take-off device 7 (relative to the regular take-off direction) or two or more yarn stores 13 could be provided.
- the separated piece of yarn can then be disposed of by the vacuum-loaded yarn store 13.
- one or more sensors 19 may be arranged in the yarn path. In the present case, only a sensor 19 is arranged in the region of the yarn store 13 by way of example.
- FIG. 2 a situation is shown in which the spinning station 1 has already been stopped and by the interruption of the yarn production, an end 10 of the produced yarn 5 is formed.
- the yarn 5 is now between its end 10 and its casserole point 29 on the coil in one Course, which also corresponds to the regular yarn course during the yarn production process.
- the yarn guide 23 is now located at an arbitrary position within the winding area B of the winding device 8.
- the end 10 of the yarn 5 can now be like FIG. 1 described in either the take-off device 7 and / or be fixed in a yarn storage 13 to allow the rewinding of the yarn 5 from the spool 18 and the subsequent separation of a piece of yarn.
- the compensating bow 11 can be seen, over which the yarn 5 runs during winding by the traversing device 24 and the winding device 8.
- a handling device is still arranged on the spinning machine 16, which is presently formed by a pivotable thread lifter 17.
- the pivotable thread lifter 17 is also in FIG. 1 shown in schematic representation. It can be seen that the thread lifter 17 between a rest position, the in FIG. 1 is shown in solid lines and in which it does not affect the course of the yarn 5 between the leveling bar 11 and the casserole point 29, is pivotable into a working position, which is shown in dashed lines herein and in which the thread lifter 17, the yarn 5 (dashed line) above the thread guide 23 is positioned.
- FIG. 2 is the thread lifter 17 in its rest position and the yarn 5 extends from the leveler bar 11 through the yarn guide 23 via the casserole point 29 on the spool 18.
- a drive 27 of the thread lifter 17 can be seen, which is designed as an electric cylinder, pneumatic cylinder or otherwise can be.
- the drive 27 actuates the thread lifter 17 in a drive area 28 and pivots him from his in FIG. 2 illustrated resting position in his in FIG. 3 recognizable working position.
- the spinning station is stopped, interrupted the yarn production and the end 10 of the yarn. 5 has advantageously been fixed in the Garn Grande 13 and / or the trigger device 7, the thread lifter 17 is now actuated and thereby lifts the yarn 5 from below out of the yarn guide 23 out.
- the yarn guide 23 After the yarn 5 has been lifted out of the yarn guide 23, the yarn guide 23 is still moved in its working position thread lifter 17 by means of its single drive 22 in a parking position P in which it does not affect the rewinding of the yarn 5.
- the parking position P is located at the edge of the winding area B or outside laterally next to the winding area B and is in Fig. 3 recognizable on the right. Likewise, of course, the parking position P could also be arranged in the left edge region of the winding device 8.
- the yarn lifter 17 is lowered by means of its drive 27 in turn to its rest position to perform the subsequent rewinding of the yarn 5 undisturbed can.
- the rewinding of the yarn 5 is in the present case by two arrows which, contrary to the regular take-off direction A (FIG. FIG. 1 ) are shown running.
- FIG. 3 it can be seen that the end 10 of the yarn 5 is now received in a yarn store 13, which is connected to a vacuum source and in which the rewound yarn 5 can be sucked in and sent for disposal.
- the thread lifter 17 is shown in its working position; Preferably, however, the thread lifter 17 is lowered back to its rest position before rewinding the yarn 5, at the latest at the same time as the beginning of rewinding.
- the piece of yarn is separated by means of the separator 25, wherein the yarn 5 is preferably fixed in the take-off device 7 or the yarn store 13. It is now the in FIG. 4 shown state in which the defective piece of yarn is already separated, whereby a new end 10 of the yarn 5 is formed.
- the yarn 5 of the coil 18 is now the Auflauftician 29 now usually at a different position than before rewinding.
- the yarn 5 is then picked up again by the yarn guide 23, for which purpose it is moved from its parking position P along the winding area B of the winding device 8. Since the thread lifter 17 is at this moment in its rest position, which FIG.
- FIG. 5 Now, a situation is shown in which the yarn 5 is already re-inserted in the yarn guide 23.
- the yarn guide 23 is now moved with the inserted yarn 5 in a transfer position Ü, in which the yarn. 5 can be removed well by the piecing.
- the process of the yarn guide 23 is symbolized in the direction of the transfer position Ü by means of an arrow.
- the thread lifter 17 is still in its rest position.
- the yarn guide 23 is stopped first and the thread lifter 17 spent again in its working position.
- the yarn 5 is thereby lifted out of the yarn guide 23 again and placed by the yarn lifter 17 in the transition position Ü above the regular yarn path.
- the yarn path of the yarn 5 can be recognized by the spool 8 via the yarn lifting device 17.
- the thread guide 23 is now, as symbolized by an arrow, in still standing in working position thread lifter 17 back into its parking position P, which is shown here in dotted lines, out.
- the yarn 5 is now cleaned from the faulty piece of yarn (or cut to length defined for the following piecing) and ready for takeover by the piecing device.
- the thread lifter 17 is moved back to its rest position only after the yarn 5 has been transferred to the piecing device, so that the transfer position is above the regular yarn path at a defined point of the bobbin B.
- the transfer position is in this case within the regular yarn path, but at a defined point of the winding area B. The transfer position must not necessarily be in the middle of the winding area B.
- FIG. 7 Finally shows a spinning machine 16, which is designed as a rotor spinning machine and in which instead of an air nozzle as a spinning element 21, a spinning rotor is arranged to which a dissolved in individual fibers fiber material 3 'in a conventional manner by an opening roller 26 is supplied.
- the delivery device 6 is formed in this case by a feed roller, which fiber material 3 from a fiber material supply 20, here a spinning can, the spinning station 1 and der Auflettewalze 26 fed.
- the other components correspond to those of the air spinning machine FIG. 1 to which reference is made at this point. The same applies to the stopping of the spinning station 1 and the monitoring by the yarn monitoring unit 9.
- the yarn 5 can be presented in a defined transfer position by means of a single drivable yarn guide 23 and a thread lifter 17 of the piecing.
- the piecing device can thereby be simplified and required to take over the yarn. 5 only a hook, but not over the entire Spul Scheme B extending receiving unit.
- the rewinding of the yarn and the picking up of the yarn 5 by the piecing device or the transfer of the yarn 5 to the piecing can thus be done safely and quickly in a simple manner, so that thereby the downtime of the spinning station 1 can be kept low. That in the Figures 2 - 6 described method and the thread lifter 17 shown there is also applicable to such a rotor spinning machine.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Quality & Reliability (AREA)
- Spinning Or Twisting Of Yarns (AREA)
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Abstract
Bei einem Verfahren zum Übergeben eines in einer Spinnstelle (1) einer Spinnmaschine hergestellten Garns (5) an eine Anspinnvorrichtung zum Zwecke des Wiederanspinnens, wobei der Spinnstelle (1) zum Aufwickeln des Garns (5) auf eine Spule (18) eine Spulvorrichtung (8) mit einem changierbaren Fadenführer (23) zugeordnet ist, wird die Garnherstellung gezielt unterbrochen und die Spinnstelle (1) kontrolliert stillgesetzt. Ein Ende (10) des hergestellten Garns (5) befindet sich dabei nach dem Stillsetzen an einer definierten Position im Fadenlauf vor der Spulvorrichtung (8). Das Garn (5) wird vor dem Wiederanspinnen entgegen seiner regulären Abzugsrichtung von der Spule (18) abgewickelt und rückgespult, wobei zunächst das Garn (5) mittels einer spinnstelleneigenen Handhabungsvorrichtung, insbesondere eines Fadenhebers (17), aus dem Fadenführer (23) heraus gehoben wird und erst anschließend das Rückspulen des Garns (5) gestartet wird. Bei einer Spinnmaschine mit zumindest einer Spinnstelle (1) zur Herstellung eines Garns (5), mit zumindest einer der Spinnstelle (1) zugeordneten Spulvorrichtung (8) zum Aufwickeln des Garns (5) auf eine Spule (18), wobei die Spulvorrichtung (8) einen changierbaren Fadenführer (23) aufweist, mit einer Steuereinheit, mittels welcher die Spinnstelle (1) kontrolliert stillsetzbar ist, sowie mit einer Anspinnvorrichtung zum Wiederanspinnen des Garns (5), ist an der Spinnstelle (1) eine spinnstelleneigene Handhabungsvorrichtung angeordnet, mittels welcher das Garn (5) nach dem kontrollierten Stillsetzen der Spinnstelle (1) aus dem Fadenführer (23) heraushebbar ist und an die Anspinnvorrichtung übergebbar ist.In a method for transferring a yarn (5) produced in a spinning station (1) of a spinning machine to a piecing device for the purpose of re-spinning, wherein the spinning station (1) for winding the yarn (5) on a spool (18) comprises a winding device (8 ) is associated with a changeable yarn guide (23), the yarn production is selectively interrupted and the spinning station (1) controlled stopped. One end (10) of the produced yarn (5) is located after stopping at a defined position in the yarn path in front of the winding device (8). The yarn (5) is unwound and rewound from the reel (18) before re-spinning contrary to its regular take-off direction, wherein first the yarn (5) by means of a spinning-own handling device, in particular a thread lifter (17), lifted out of the yarn guide (23) and only then the rewinding of the yarn (5) is started. In a spinning machine having at least one spinning station (1) for producing a yarn (5), with at least one of the spinning station (1) associated with winding device (8) for winding the yarn (5) on a spool (18), wherein the winding device (8 ) has a changeable thread guide (23), with a control unit, by means of which the spinning station (1) is controlled shutdown, and with a piecing device for re-spinning the yarn (5), at the spinning station (1) a spinning station own handling device is arranged, by means of which the yarn (5) can be lifted out of the yarn guide (23) after the spinning station (1) has been stopped in a controlled manner and can be transferred to the piecing device.
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Übergeben eines in einer Spinnstelle einer Spinnmaschine hergestellten Garns an eine Anspinnvorrichtung zum Zwecke des Wiederanspinnens. Der Spinnstelle ist dabei zum Aufwickeln des Garns auf eine Spule eine Spulvorrichtung mit einem changierbaren Fadenführer zugeordnet. Bei dem Verfahren wird die Garnherstellung gezielt unterbrochen und die Spinnstelle kontrolliert stillgesetzt, wobei das Ende des hergestellten Garns sich nach den Stillsätzen an einer definierten Position im Fadenlauf vor der Spulvorrichtung befindet. Bei dem Verfahren wird das Garn vor dem Wiederanspinnen entgegen seiner regulären Abzugsrichtung von der Spule abgewickelt und rückgespult. Weiterhin betrifft die Erfindung eine Spinnmaschine mit zumindest einer Spinnstelle zur Herstellung eines Garns, mit zumindest einer der Spinnstelle zugeordneten Spulvorrichtung zum Aufwickeln des Garns auf eine Spule, wobei die Spulvorrichtung einen changierbaren Fadenführer aufweist, mit einer Steuereinheit, mittels welcher die Spinnstelle kontrolliert stillsetzbar ist, sowie mit einer Anspinnvorrichtung zum Wiederanspinnen des Garns.The present invention relates to a method for transferring a yarn produced in a spinning station of a spinning machine to a piecing apparatus for the purpose of re-spinning. The spinning unit is assigned for winding the yarn on a spool a winding device with a changeable yarn guide. In the process, the yarn production is selectively interrupted and the spinning station controlled stopped, the end of the yarn produced is after the still etches at a defined position in the yarn path in front of the winding device. In the method, the yarn is unwound from the spool and rewound before being re-spun contrary to its regular take-off direction. Furthermore, the invention relates to a spinning machine with at least one spinning station for producing a yarn, with at least one of the spinning station associated winding device for winding the yarn on a spool, the winding device comprises a changierbaren yarn guide, with a control unit, by means of which the spinning station is controlled shutdown, and with a piecing device for re-spinning the yarn.
Bei Rotor- oder Luftspinnmaschinen wird nach einer Unterbrechung des Garnherstellungsprozesses das freie Garnende von einer meist entlang der Spinnmaschine verfahrbaren Wartungseinrichtung aufgenommen und für das Wiederanspinnen vorbereitet. Anschließend wird das Garnende wieder mit einem der Spinnstelle zugeführten Fasermaterial in Kontakt gebracht und mit diesem verbunden, so dass der Garnherstellungsprozess wieder aufgenommen werden kann. Bei der Unterbrechung des Garnherstellungsprozesses läuft das spulvorrichtungsseitige Garnende in der Regel auf die sich noch drehende Spule auf. Das Garnende muss daher zunächst beispielsweise mittels einer Saugdüse auf der Spulenoberfläche aufgesucht werden, um es an die Anspinnvorrichtung übergeben zu können. Das Aufsuchen des Garnendes ist vergleichsweise zeitaufwändig und muss manchmal mehrfach durchgeführt werden, bis schließlich ein erfolgreicher Anspinnvorgang durchgeführt werden kann.In rotor or air-jet spinning machines, after an interruption of the yarn production process, the free end of the yarn is taken up by a service device that is usually movable along the spinning frame and prepared for re-spinning. Subsequently, the yarn end is again brought into contact with and connected to a fiber material fed to the spinning station, so that the yarn production process can be resumed. At the interruption of the yarn production process, the bobbin-side yarn end usually runs on the still-rotating bobbin. The yarn end must therefore first be visited, for example, by means of a suction nozzle on the bobbin surface in order to be able to transfer it to the piecing device. The search for the yarn end is comparatively time consuming and sometimes has to be done several times until finally a successful piecing process can be performed.
Die
Aufgabe der vorliegenden Erfindung ist es daher, ein Verfahren zum Übergeben eines Garns an eine Anspinnvorrichtung vorzuschlagen, mittels welchem Beschädigungen des Garns und Wickelbildung vermieden werden können. Weiterhin soll eine entsprechende Spinnmaschine vorgeschlagen werden.The object of the present invention is therefore to propose a method for transferring a yarn to a piecing device, by means of which damage to the yarn and formation of a lap are avoided can. Furthermore, a corresponding spinning machine to be proposed.
Die Aufgabe wird gelöst mit den Merkmalen der unabhängigen Ansprüche.The object is solved with the features of the independent claims.
Bei einem Verfahren zum Übergeben eines in einer Spinnstelle einer Spinnmaschine hergestellten Garns an eine Anspinnvorrichtung zum Zwecke des Wiederanspinnens wird die Garnherstellung gezielt unterbrochen und die Spinnstelle kontrolliert stillgesetzt. Der Spinnstelle ist dabei zum Aufwickeln des Garns auf eine Spule einer Spulvorrichtung ein changierbarer Fadenführer zugeordnet. Nach dem kontrollierten Stillsetzen befindet sich ein Ende des hergestellten Garns an einer definierten Position im Fadenlauf vor der Spulvorrichtung. Bei dem Verfahren wird das Garn vor dem Wiederanspinnen entgegen seiner regulären Abzugsrichtung von der Spule abgewickelt und rückgespult. Vor dem Rückspulen wird nun das Garn mittels einer spinnstelleneigenen Handhabungsvorrichtung, insbesondere eines Fadenhebers, aus dem Fadenführer heraus gehoben und erst anschließend das Rückspulen des Garns gestartet. Nach dem Rückspulen bei aus dem Fadenführer herausgehobenem Garn wird das Garn an die Anspinnvorrichtung übergeben. Bei einer gezielten Spinnunterbrechung, wie sie beispielsweise durch eine Überwachungseinheit zur Garnüberwachung bei Auftreten eines Garnfehlers vorgenommen wird, befindet sich das Garn zwischen seinem Garnende und seinem Auflaufpunkt auf die Spule im Wesentlichen in seinem regulären Fadenlauf, den es auch während des Spinnvorganges einnimmt. Durch das Herausheben des Garnes aus dem Fadenführer, der sich nach dem Stillsetzen an einer beliebigen Position innerhalb des Spulbereichs befinden kann, kann nun das Garn sicher von der Spule rückgespult werden, ohne dass es zu Beschädigungen oder Fadenbrüchen des Fadens durch den Fadenführer kommt. Da nun beim Rückspulen des Fadens die Umlenkung durch den Fadenführer entfällt, ist weiterhin auch die Gefahr der Wickelbildung an rotierenden Teilen der Spinnmaschine vermindert.In a method for transferring a yarn produced in a spinning station of a spinning machine to a piecing device for the purpose of re-spinning, the yarn production is purposefully interrupted and the spinning station is stopped in a controlled manner. The spinning station is associated with a changeable thread guide for winding up the yarn on a bobbin of a winding device. After the controlled shutdown is one end of the yarn produced at a defined position in the yarn path in front of the winding device. In the method, the yarn is unwound from the spool and rewound before being re-spun contrary to its regular take-off direction. Before being rewound, the yarn is now lifted out of the yarn guide by means of a spinning device's own handling device, in particular a thread lifter, and only then is the rewinding of the yarn started. After rewinding when the thread guide is lifted out of the yarn, the yarn is transferred to the piecing device. In a targeted spin interruption, as is done for example by a monitoring unit for yarn monitoring when a yarn fault occurs, the yarn is between its yarn end and its casserole point on the bobbin essentially in its regular yarn path, which it also occupies during the spinning process. By lifting the yarn out of the yarn guide, which can be located in any position within the Spulbereichs after stopping, the yarn can now be safely rewound from the spool, without causing damage or thread breakage of the thread through the yarn guide. Since now the rewinding of the thread eliminates the deflection by the thread guide, the risk of winding formation on rotating parts of the spinning machine is also reduced.
Eine entsprechende Spinnmaschine weist zumindest eine Spinnstelle zur Herstellung eines Garns sowie wenigstens eine der Spinnstelle zugeordnete Spulvorrichtung zum Aufwickeln des Garns auf eine Spule auf. Die Spulvorrichtung weist weiterhin noch einen changierbaren Fadenführer auf sowie eine Steuereinheit, mittels welcher die Spinnstelle kontrolliert stillsetzbar ist. Zum Ausheben des Garns aus dem Fadenführer nach dem kontrollierten Stillsetzen der Spinnvorrichtung ist an der Spinnmaschine eine spinnstelleneigene Handhabungsvorrichtung angeordnet. Mittels dieser Handhabungsvorrichtung ist das Garn nach dem Herausheben und Rückspulen des Garns an eine Anspinnvorrichtung übergebbar. Üblicherweise kommt an einer derartigen Spinnmaschine eine entlang der Spinnstellen der Spinnmaschine verfahrbare Anspinnvorrichtung zum Einsatz. Durch die spinnstelleneigene Handhabungsvorrichtung ist nun ein sicheres Rückspulen des Garns auch nach einem kontrollierten Stillsetzen, nach welchem sich das Garn in seinem regulären Fadenlauf befindet, möglich.A corresponding spinning machine has at least one spinning station for producing a yarn, and at least one winding device associated with the spinning station for winding up the yarn on a spool. The winding device further comprises a changeable yarn guide and a control unit, by means of which the spinning station is controlled shutdown. To lift the yarn from the yarn guide after the controlled shutdown of the spinning device a spinning station own handling device is arranged on the spinning machine. By means of this handling device, the yarn can be transferred to a piecing device after the yarn has been lifted out and rewound. Usually, a piecing device movable along the spinning stations of the spinning machine is used on such a spinning machine. By the spinning station's own handling device now a safe rewinding of the yarn is possible even after a controlled shutdown, after which the yarn is in its regular yarn path.
Besonders vorteilhaft ist es, wenn an der Spinnstelle als Handhabungsvorrichtung ein sich vorzugsweise über die gesamte Breite der Spulvorrichtung erstreckender Fadenheber angeordnet ist. Der Fadenheber kann aus einer Ruheposition, in welcher er sich außerhalb des regulären Fadenlaufs des Garnes befindet, in eine Arbeitsposition verbracht werden, in welche er das Garn oberhalb des Fadenführers positioniert. Vorteilhaft bei einem Verfahren zum Rückspulen und Übergeben eines Garns an eine Anspinnvorrichtung ist es, wenn der Fadenheber zum Herausheben des Garns aus dem Fadenführer aus seiner Ruheposition in eine Arbeitsposition, in welcher er das Garn oberhalb des Fadenführers positioniert, verschwenkt wird. Der Fadenheber kann hierdurch platzsparend an der Spinnstelle angeordnet werden und in einfacher Weise angetrieben werden. Wenn der Fadenheber sich über die gesamte Spulbreite der Spulvorrichtung erstreckt, so ist es weiterhin möglich, das Garn an jeder beliebigen Stelle, an welcher der Fadenführer stehen geblieben ist, aus diesem herauszuheben. Es ist somit nicht erforderlich den Fadenführer in eine bestimmte Position zu verfahren, um das Garn herausheben zu können.It is particularly advantageous if, at the spinning station as the handling device, a thread take-up preferably extending over the entire width of the winding device is arranged. The thread lifter can be moved from a rest position, in which it is outside the regular yarn path of the yarn, in a working position, in which he positioned the yarn above the yarn guide. It is advantageous in a method for rewinding and transferring a yarn to a piecing device when the thread lifter for lifting the yarn out of the thread guide is pivoted from its rest position into a working position in which it positions the yarn above the thread guide. The thread lifter can thereby be arranged to save space at the spinning station and are driven in a simple manner. If the thread lifter extends over the entire winding width of the winding device, so it is still possible to lift the yarn at any point where the yarn guide has stopped, from this. It is therefore not necessary the To move yarn guide in a certain position to lift the yarn out.
Nach einer besonders vorteilhaften Ausführung einer Spinnmaschine weisen dabei zumindest die Handhabungsvorrichtung und der Fadenführer jeweils einen Einzelantrieb auf und wirken vorzugsweise zum Übergeben des Garns an die Anspinnvorrichtung zusammen. Der Fadenführer kann nach dem Ausheben des Garns mittels seines Einzelantriebs in einfacher Weise in eine Position außerhalb des Spulbereiches der Spulvorrichtung verfahren werden, in welcher beim Rückspulen keine Kollisionen mit dem Garn zu befürchten sind. Durch das Zusammenwirken des einzeln antreibbaren Fadenführers mit dem Garnheber kann das Garn in eine definierte Übergabeposition verbracht werden, in welcher die Anspinnvorrichtung das Garn übernehmen kann, ohne dieses aufwändig auf der Spulenoberfläche aufsuchen zu müssen. Bei dem Verfahren zum Rückspulen und Übergeben eines in der Spinnstelle hergestellten Garns ist es daher auch vorteilhaft, wenn nach dem Herausheben des Garns und vor dem Rückspulen des Garns der Fadenführer in eine Parkposition am Rand oder außerhalb des Spulbereichs der Spulvorrichtung verfahren wird. Das Rückspulen des Garns erfolgt somit bei sich in der Parkposition befindlichem Fadenführer.According to a particularly advantageous embodiment of a spinning machine, at least the handling device and the thread guide each have a single drive and preferably act together for transferring the yarn to the piecing device. The yarn guide can be moved after lifting the yarn by means of its single drive in a simple manner in a position outside the winding area of the winding device, in which no collisions with the yarn are to be feared during rewinding. Due to the interaction of the individually drivable yarn guide with the yarn lifter, the yarn can be brought into a defined transfer position, in which the piecing device can take over the yarn, without having to go to the coil surface consuming this. In the method for rewinding and transferring a yarn produced in the spinning station, it is therefore also advantageous if, after the yarn is lifted out and before the yarn is rewound, the yarn guide is moved to a parking position on the edge or outside of the winding area of the winding device. The rewinding of the yarn thus takes place in the parking position befindlichem yarn guide.
Zugleich ist es vorteilhaft, wenn nach dem Verfahren des Fadenführers in die Parkposition der Fadenheber wieder in seine Ruheposition verbracht wird, insbesondere geschwenkt wird. Das Garn kann hierdurch im Wesentlichen entsprechend seinem regulären Garnverlauf entgegen der Abzugsrichtung von der Spule rückgespult werden, ohne dass durch den Fadenheber eine zusätzliche Umlenkstelle entsteht. Zugleich ist die spätere Wiederaufnahme des Garnes in den Fadenführer erleichtert.At the same time it is advantageous if, after the method of the thread guide in the parking position of the thread lifter is returned to its rest position, in particular is pivoted. As a result, the yarn can be rewound from the bobbin essentially in accordance with its regular yarn course, counter to the withdrawal direction, without an additional deflection point being created by the yarn lifter. At the same time the subsequent resumption of the yarn is facilitated in the yarn guide.
Besonders vorteilhaft ist es weiterhin, wenn das gesponnene Garn mittels einer Garnüberwachungseinheit überwacht wird und bei Detektion eines Garnfehlers die Spinnstelle kontrolliert stillgesetzt wird. Die Spinnstelle wird dabei vorteilhafterweise durch Reduzierung der Fördergeschwindigkeiten der Förderelemente der Spinnstelle wie Abzugsvorrichtung, Spulvorrichtung und Liefervorrichtung bis zu deren Stillstand reduziert. Dabei ist es weiterhin vorteilhaft, wenn nach dem kontrollierten Stillsetzen der Spinnstelle das Garn rückgespult wird und ein fehlerhaftes Garnstück abgetrennt wird. Das erfindungsgemäße Verfahren zum Rückspulen und Übergeben eines Garnendes ist dabei besonders vorteilhaft einsetzbar, da zum Ausreinigen des fehlerhaften Garnstücks größere Längen des Garns von der Spule rückgespult werden müssen.It is furthermore particularly advantageous if the spun yarn is monitored by means of a yarn monitoring unit and the spinning station is stopped in a controlled manner upon detection of a yarn defect. The spinning station will thereby advantageously reduced by reducing the conveying speeds of the conveying elements of the spinning station such as the extraction device, winding device and delivery device to its standstill. It is also advantageous if, after the controlled shutdown of the spinning station, the yarn is rewound and a defective piece of yarn is separated. The method according to the invention for rewinding and transferring a yarn end can be used particularly advantageously, since larger lengths of the yarn must be rewound from the reel in order to clean the faulty yarn piece.
Das Verfahren ist jedoch nicht nur beim Ausreinigen eines fehlerhaften Garnstücks, sondern auch bei anderen Anspinnvorgängen, bei welchen die Spinnstelle kontrolliert stillgesetzt wurde, vorteilhaft. Beispielsweise kann ein derartiges kontrolliertes Stillsetzen mit einer gezielten Unterbrechung der Garnherstellung auch bei einem Spannungsausfall oder beim Herunterfahren der Maschine sinnvoll sein. Weiterhin kann vor einem Spulenwechsel oder einem Wechsel der Fasermaterialvorlage ein kontrolliertes Stillsetzen erfolgen. In diesem Fall wird vor dem Wiederanspinnen lediglich ein kleines Stück des Garns zurückgespult und abgetrennt, um das hierdurch neu entstandene Garnende für den folgenden Anspinnprozess vorbereiten zu können.However, the method is advantageous not only in the cleaning of a defective piece of yarn, but also in other piecing operations in which the spinning station has been stopped in a controlled manner. For example, such a controlled shutdown with a targeted interruption of yarn production even in case of power failure or shutdown of the machine may be useful. Furthermore, a controlled shutdown can take place before a bobbin change or a change of the fiber material template. In this case, only a small piece of the yarn is rewound and separated before Wiederanspinnen in order to prepare the newly created yarn end for the subsequent piecing process can.
Nach einer vorteilhaften Weiterbildung der Erfindung weist der einzeln angetriebene Fadenführer eine Fangeinrichtung zum selbstständigen Aufnehmen des Garns auf. Diese kann beispielsweise als leicht nach oben hervorstehende Fanglasche ausgebildet sein. Zum Einlegen des Garns in den Fadenführer ist es bei dem vorgeschlagenen Verfahren vorteilhaft, wenn nach dem Abtrennen des Garnstücks der Fadenführer aus der Parkposition entlang der Spulbreite der Spulvorrichtung verfahren wird, um das Garn in den Fadenführer einzulegen. Der Fadenheber wurde dabei zuvor bereits wieder in seine Ruheposition verbracht, um dem Fadenführer das Verfahren entlang des Spulbereichs zu ermöglichen.According to an advantageous embodiment of the invention, the individually driven yarn guide on a catcher for independently picking up the yarn. This can be formed, for example, as a slightly upwardly projecting catch tab. To insert the yarn into the yarn guide, it is advantageous in the proposed method if, after the separation of the yarn piece, the yarn guide is moved from the parking position along the winding width of the winding device in order to insert the yarn into the yarn guide. The thread lifter was previously already returned to its rest position to allow the thread guide the process along the winding area.
Zur Übergabe des Garns an die Anspinnvorrichtung ist es weiterhin vorteilhaft, wenn der Fadenführer mit dem eingelegten Garn in eine Übergabeposition für die Anspinnvorrichtung verfahren wird. Die Anspinnvorrichtung muss somit lediglich die stets selbe, vorgegebene Übergabeposition anfahren, um das Garn aufzunehmen. Für die Aufnahme des Garns durch die Anspinnvorrichtung ist daher beispielsweise auch ein einfacher Haken ausreichend. Im Stand der Technik waren hierzu hingegen sich über die gesamte Spulbreite erstreckende Aufnahmeeinrichtungen, wie beispielsweise eine Saugdüse, erforderlich, um das Garn an einer undefinierten Position entlang des Spulbereichs aufzunehmen.For the transfer of the yarn to the piecing device, it is also advantageous if the thread guide is moved with the inserted yarn in a transfer position for the piecing. The piecing device therefore only has to approach the always same, predetermined transfer position in order to pick up the yarn. Therefore, a simple hook is sufficient for receiving the yarn through the piecing device, for example. In the prior art, on the other hand, receiving devices extending over the entire winding width, such as a suction nozzle, were required to receive the yarn at an undefined position along the winding area.
Vorteilhaft zum Übergeben des Garns an die Anspinnvorrichtung ist es weiterhin, wenn der Fadenheber, nachdem der Fadenführer mit dem eingelegten Garn die Übergabeposition erreicht hat, wieder in die Arbeitsposition verbracht wird und das Garn erneut aus dem Fadenführer herausgehoben wird.It is also advantageous for transferring the yarn to the piecing device if, after the thread guide has reached the transfer position with the inserted yarn, the thread lifter is returned to the working position and the yarn is lifted out of the thread guide again.
Bei einer vorteilhaften Weiterentwicklung des Verfahrens wird nach dem Übergeben des Garns an die Anspinnvorrichtung der Fadenführer in eine Parkposition am Rand oder außerhalb des Spulbereichs der Spulvorrichtung verfahren. Der folgende Anspinnvorgang kann dann durch die Anspinnvorrichtung durchgeführt werden, ohne dass diese durch den Fadenführer behindert würde und ohne die Gefahr von Beschädigungen des Garns durch Kollisionen mit dem Fadenführer.In an advantageous further development of the method, after the yarn has been transferred to the piecing device, the thread guide is moved to a parking position on the edge or outside the winding area of the winding device. The following piecing can then be performed by the piecing without this would be hindered by the thread guide and without the risk of damage to the yarn by collisions with the thread guide.
Ebenso wird, um den Anspinnvorgang störungsfrei durchführen zu können, vorteilhafterweise nach dem Übergeben des Garns an die Anspinnvorrichtung der Fadenheber wieder zurück in seine Ruheposition verbracht und der Anspinnvorgang durchgeführt.Likewise, in order to perform the piecing operation without interference, advantageously after transferring the yarn to the piecing device the thread lifter is returned to its rest position and the piecing process is carried out.
Bei einer erfindungsgemäßen Spinnmaschine ist es schließlich vorteilhaft, wenn sie eine Steuer- und/oder Regelungseinheit aufweist, die ausgelegt ist, die Spinnmaschine gemäß einem oder mehrere Schritte des vorgeschriebenen Verfahrens zu betreiben.In a spinning machine according to the invention, it is finally advantageous if it has a control and / or regulating unit which is designed to operate the spinning machine according to one or more steps of the prescribed method.
Weitere Vorteile der Erfindung werden anhand der nachfolgend dargestellten Ausführungsbeispiele beschrieben. Es zeigen:
-
Figur 1 - eine schematische Übersichtsdarstellung einer als Luftspinnmaschine ausgebildeten Spinnmaschine in einer Seitenansicht,
- Figuren 2 - 6
- eine schematische Darstellung eines Verfahrens zum Rückspulen eines Garns und Übergeben eines Garns an eine Anspinnvorrichtung in einer Ansicht von der Vorderseite her, sowie
-
Figur 7 - eine schematische Darstellung einer als Rotorspinnmaschine ausgebildeten Spinnmaschine in einer Seitenansicht.
- FIG. 1
- a schematic overview of a spinning machine designed as an air spinning machine in a side view,
- Figures 2 - 6
- a schematic representation of a method for rewinding a yarn and passing a yarn to a piecing in a view from the front, as well as
- FIG. 7
- a schematic representation of a spinning machine designed as a spinning machine in a side view.
Weiterhin verfügt die Spinnmaschine 1 über eine Garnüberwachungseinheit 9, die einen oder mehrere Garnparameter überwacht und beim Auftreten einer Fehlerstelle in dem hergestellten Garn 5 eine Unterbrechung der Garnherstellung veranlasst. Die Unterbrechung der Garnherstellung erfolgt dabei nicht durch einen Schnitt, welcher zwangsläufig dazu führen würde, dass das entstandene Ende 10 des hergestellten Garns auf die Kreuzspule 18 auflaufen würde, sondern mittels eines gezielten Stillsetzens der Spinnstelle 1, wie es in der in der
Das Garnende 10 ist in vorliegender Darstellung gestrichelt dargestellt und kann beispielsweise mittels eines unterdruckbeaufschlagten Garnspeichers 13 (ebenfalls gestrichelt dargestellt) aufgenommen und fixiert werden. Zum Rückspulen des Garns 5 und zum Entfernen des fehlerhaften Garnstücks wird nun das Garn 5 entgegen seiner regulären Abzugsrichtung, welche vorliegend durch den Pfeil A symbolisiert ist, rückgespult, in den Garnspeicher 13 eingesaugt und kann dann mittels einer Trenneinheit 25 abgetrennt werden, wobei wiederum ein neues Ende 10 des Garns 5 entsteht. Dieses kann in ebenfalls bekannter Weise durch eine Anspinnvorrichtung entweder in oder auch außerhalb der Spinnstelle 1 mit dem Fasermaterial 3 in Kontakt gebracht werden, um wieder angesponnen zu werden.The
Eine derartige gezielte Unterbrechung der Garnherstellung mit einem kontrollierten Stillsetzen der Spinnstelle kann in der vorbeschriebenen Weise nicht nur zum Ausreinigen eines fehlerhaften Garnstücks, sondern auch vor einem Abschalten der Spinnmaschine 16 oder bei einem Spannungsausfall erfolgen. In diesem Fall wird vor dem Wiederanspinnen lediglich ein kleines Stück des Garns 5 rückgespult, abgetrennt, für das Wiederanspinnen vorbereitet und in Richtung der Spinnstelle 1 transportiert.Such a targeted interruption of the yarn production with a controlled shutdown of the spinning station can be done in the manner described above not only to clean out a faulty Garnstücks, but also before switching off the spinning
Die vorliegende Darstellung ist dabei lediglich beispielhaft zu verstehen. So muss der Garnspeicher 13 nicht zwangsläufig an der dargestellten Position angeordnet sein, sondern könnte sich auch oberhalb der Abzugsvorrichtung 7 (bezogen auf reguläre Abzugsrichtung) befinden oder es könnten zwei oder mehrere Garnspeicher 13 vorgesehen sein. Selbiges gilt für die Trenneinheit 25. Für das Abtrennen eines Garnstücks mittels der Trenneinrichtung 25 ist es lediglich erforderlich, das Ende 10 des Garns 5 zu fixieren, was mittels eines Garnspeichers 13 oder auch mittels der Abzugsvorrichtung 7 erfolgen kann. Das abgetrennte Garnstück kann dann durch den unterdruckbeaufschlagten Garnspeicher 13 entsorgt werden. Weiterhin können zur Ermittlung der Position des Endes 10 des Garnes 5 ein oder mehrere Sensoren 19 im Fadenlauf angeordnet sein. Vorliegend ist lediglich beispielhaft ein Sensor 19 im Bereich des Garnspeichers 13 angeordnet.The present description is to be understood merely as an example. Thus, the
Das erfindungsgemäße Verfahren wird nun anhand der
Das Ende 10 des Garns 5 kann nun wie zu
Der schwenkbare Fadenheber 17 ist auch in
In
Nachdem das Garn 5 aus dem Fadenführer 23 herausgehoben wurde, wird der Fadenführer 23 bei noch immer sich in seiner Arbeitsposition befindlichem Fadenheber 17 mittels seines Einzelantriebs 22 in eine Parkposition P verfahren, in welcher er das Rückspulen des Garns 5 nicht beeinträchtigt. Die Parkposition P befindet sich am Rand des Spulbereichs B oder außerhalb seitlich neben dem Spulbereich B und ist in
Nachdem der Fadenführer 23 seine Parkposition P erreicht hat, wird der Fadenheber 17 mittels seines Antriebs 27 wiederum in seine Ruheposition abgesenkt, um das folgende Rückspulen des Garns 5 ungestört durchführen zu können. Das Rückspulen des Garns 5 ist vorliegend durch zwei Pfeile, welche entgegen der regulären Abzugsrichtung A (
Ist nun das fehlerhafte bzw. das abzutrennende Garnstück vollständig rückgespult, so wird das Garnstück mittels der Trenneinrichtung 25 abgetrennt, wobei das Garn 5 vorzugsweise in der Abzugsvorrichtung 7 oder dem Garnspeicher 13 fixiert ist. Es liegt nun der in
In
Sobald nun der Fadenheber 23 mit dem eingelegten Garn 5 die Übergabeposition Ü erreicht hat (
Da das Garn 5 mittels des Fadenführers 23 und des Fadenhebers 17 in eine definierte Übergabeposition gebracht wurde, kann es nun in einfacher Weise sicher und schnell durch die Anspinnvorrichtung aufgenommen werden. Vorzugsweise wird der Fadenheber 17 erst nachdem das Garn 5 an die Anspinnvorrichtung übergeben wurde wieder zurück in seine Ruheposition verbracht, so dass sich die Übergabeposition oberhalb des regulären Fadenlaufs an einer definierten Stelle des Spulbereichs B befindet. Es ist allerdings auch denkbar, den Fadenheber 17 bereits in die Ruheposition zu überführen, nachdem der Fadenführer 23 seine Parkposition P erreicht hat. Die Übergabeposition befindet sich in diesem Fall innerhalb des regulären Fadenlaufs, jedoch an einer definierten Stelle des Spulbereichs B. Die Übergabeposition muss sich dabei auch nicht zwangsläufig in der Mitte des Spulbereichs B befinden.Since the
Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele beschränkt. Kombinationen im Rahmen der Patentansprüche, soweit sie technisch möglich und sinnvoll sind, sind ebenfalls Gegenstand der Erfindung.The invention is not limited to the illustrated embodiments. Combinations within the scope of the claims, as far as they are technically possible and useful, are also the subject of the invention.
- 11
- Spinnstellespinning unit
- 22
- Eingangentrance
- 33
- Fasermaterialfiber material
- 3'3 '
- in Einzelfasern aufgelöstes Fasermaterialfiber material dissolved in individual fibers
- 44
- Ausgangoutput
- 55
- Garnyarn
- 66
- Liefereinrichtung (Lieferwalzenpaar, Speisewalze)Delivery device (delivery roller pair, feed roller)
- 77
- Abzugseinrichtungoff device
- 88th
- Spulvorrichtungspooling device
- 99
- GarnüberwachungseinheitGarnüberwachungseinheit
- 1010
- Ende des hergestellten GarnsEnd of the manufactured yarn
- 1111
- Ausgleichsbügelbalance stirrup
- 1212
- AbzugswalzenpaarOff rollers
- 1313
- Garnspeicheryarn store
- 1414
- Spulenrahmencreel
- 1515
- Spulwalzewinding roller
- 1616
- Spinnmaschinespinning machine
- 1717
- Fadenheberthread lifting
- 1818
- SpuleKitchen sink
- 1919
- Sensorsensor
- 2020
- Fasermaterialzufuhr (Spinnkanne, Streckwerk)Fiber material feed (spinning can, drafting system)
- 2121
- Spinnelement (Spinnrotor, Luftspindel)Spinning element (spinning rotor, air spindle)
- 2222
- Einzelantrieb des FadenführersSingle drive of the thread guide
- 2323
- Fadenführerthread guides
- 2424
- ChangiereinrichtungTraversing device
- 2525
- Trenneinheitseparation unit
- 2626
- Auflösewalzeopening roller
- 2727
- Antrieb des FadenhebersDrive of the thread lifter
- 2828
- Ansteuerbereich des FadenhebersControl range of the thread lifter
- 2929
- Auflaufpunktaccumulating point
- AA
- Abzugsrichtungwithdrawal direction
- BB
- Spulbereichwinding region
- PP
- Parkpositionparking position
- ÜÜ
- ÜbergabepositionTransfer position
Claims (16)
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DE102014103193.8A DE102014103193A1 (en) | 2014-03-11 | 2014-03-11 | Spinning machine and method for transferring a yarn to a piecing device |
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CN (1) | CN104911755B (en) |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3112507A1 (en) * | 2015-06-30 | 2017-01-04 | Rieter Ingolstadt GmbH | Spinning station of a spinning machine and method for operating a spinning station |
CN107299428A (en) * | 2017-08-25 | 2017-10-27 | 遵义天蕴纺织有限责任公司 | It is easy to connect the cotton thread weaving device of broken string |
CN107447312A (en) * | 2017-08-25 | 2017-12-08 | 遵义天蕴纺织有限责任公司 | A kind of cotton spinning spun yarn connects broken string method |
CN107663683A (en) * | 2016-07-28 | 2018-02-06 | 立达英格尔施塔特有限公司 | Wire harness guidance unit, free-end spinning machine and the method for running spinning station |
CN115074881A (en) * | 2022-07-25 | 2022-09-20 | 江苏悦达棉纺有限公司 | Ultra-fine yarn guiding joint method |
CN117342354A (en) * | 2023-12-05 | 2024-01-05 | 汕头市致盛纺织科技有限公司 | Yarn searching and receiving device for knitting equipment |
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CN110541215B (en) * | 2019-09-23 | 2024-05-10 | 安徽日发纺织机械有限公司 | Air spinning yarn storage linkage device |
EP3919659B1 (en) * | 2020-06-03 | 2023-02-15 | Saurer Spinning Solutions GmbH & Co. KG | Open end rotor spinning device and method for operating an open end rotor spinning device |
DE102021118842A1 (en) | 2021-07-21 | 2023-01-26 | Maschinenfabrik Rieter Ag | Method for operating a workstation on a textile machine, and workstation on a textile machine |
DE102021130062A1 (en) | 2021-11-17 | 2023-05-17 | Maschinenfabrik Rieter Ag | Method for operating a winding station of a winding machine and winding machine |
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- 2015-03-05 IN IN625DE2015 patent/IN2015DE00625A/en unknown
- 2015-03-05 EP EP15157689.9A patent/EP2918534B1/en active Active
- 2015-03-11 CN CN201510105614.0A patent/CN104911755B/en active Active
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EP0286002A1 (en) * | 1987-03-31 | 1988-10-12 | Schubert & Salzer Maschinenfabrik Aktiengesellschaft | Method and device to change bobbins |
DE4034769A1 (en) * | 1990-11-02 | 1992-05-07 | Schlafhorst & Co W | Cross wound bobbin winder - has yarn guide plate to support yarn after break or cleaning to give trouble-free movement path |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3112507A1 (en) * | 2015-06-30 | 2017-01-04 | Rieter Ingolstadt GmbH | Spinning station of a spinning machine and method for operating a spinning station |
CN107663683A (en) * | 2016-07-28 | 2018-02-06 | 立达英格尔施塔特有限公司 | Wire harness guidance unit, free-end spinning machine and the method for running spinning station |
CN107663683B (en) * | 2016-07-28 | 2022-06-07 | 立达英格尔施塔特有限公司 | Thread bundle guiding unit, open-end spinning machine and method for operating a spinning station |
CN107299428A (en) * | 2017-08-25 | 2017-10-27 | 遵义天蕴纺织有限责任公司 | It is easy to connect the cotton thread weaving device of broken string |
CN107447312A (en) * | 2017-08-25 | 2017-12-08 | 遵义天蕴纺织有限责任公司 | A kind of cotton spinning spun yarn connects broken string method |
CN107299428B (en) * | 2017-08-25 | 2019-04-26 | 遵义天蕴纺织有限责任公司 | Convenient for connecing the cotton thread weaving device of broken string |
CN115074881A (en) * | 2022-07-25 | 2022-09-20 | 江苏悦达棉纺有限公司 | Ultra-fine yarn guiding joint method |
CN117342354A (en) * | 2023-12-05 | 2024-01-05 | 汕头市致盛纺织科技有限公司 | Yarn searching and receiving device for knitting equipment |
CN117342354B (en) * | 2023-12-05 | 2024-02-02 | 汕头市致盛纺织科技有限公司 | Yarn searching and receiving device for knitting equipment |
Also Published As
Publication number | Publication date |
---|---|
CN104911755A (en) | 2015-09-16 |
TR201809573T4 (en) | 2018-07-23 |
IN2015DE00625A (en) | 2015-09-18 |
DE102014103193A1 (en) | 2015-09-17 |
CN104911755B (en) | 2019-03-19 |
EP2918534B1 (en) | 2018-05-23 |
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