EP3581687B1 - Method and device for adjusting the winding of bobbins - Google Patents

Method and device for adjusting the winding of bobbins Download PDF

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Publication number
EP3581687B1
EP3581687B1 EP19178479.2A EP19178479A EP3581687B1 EP 3581687 B1 EP3581687 B1 EP 3581687B1 EP 19178479 A EP19178479 A EP 19178479A EP 3581687 B1 EP3581687 B1 EP 3581687B1
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EP
European Patent Office
Prior art keywords
ring spinning
winding
thread
machine
ring
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
EP19178479.2A
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German (de)
French (fr)
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EP3581687A1 (en
Inventor
Martin Mense
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.)
Saurer Spinning Solutions GmbH and Co KG
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Saurer Spinning Solutions GmbH and Co KG
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Publication of EP3581687A1 publication Critical patent/EP3581687A1/en
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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H1/00Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/02Spinning or twisting machines in which the product is wound-up continuously ring type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H13/00Other common constructional features, details or accessories
    • D01H13/14Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H13/00Other common constructional features, details or accessories
    • D01H13/14Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H13/00Other common constructional features, details or accessories
    • D01H13/26Arrangements facilitating the inspection or testing of yarns or the like in connection with spinning or twisting
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H13/00Other common constructional features, details or accessories
    • D01H13/32Counting, measuring, recording or registering devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a method and a device for influencing the winding state of ring spinning bobbins manufactured on spinning stations of ring spinning machines according to a predetermined spinning program, which are rewound to form cross bobbins at work stations of a winding machine downstream in the production process, with the threads running off the ring spinning bobbins being constantly monitored and thread defects registered as well as thread defects that exceed specified limit values are cleaned out.
  • the textile machines for the production of ring spinning cops usually have a large number of work stations, so-called spinning stations, in the area of the longitudinal sides of the machine.
  • these mostly identical jobs each have different working elements that are either mounted stationary or can be moved vertically.
  • a drafting system for drafting a template material provided by supply bobbins and a stationary spindle rail for receiving rotatably mounted ring spinning spindles are provided.
  • the feed bobbins preferably hang in the creel rows of a creel arranged above the ring spinning machine.
  • Textile machines of this type also have vertically displaceably mounted ring rails for receiving spinning rings and ring travellers, banks for balloon constriction rings and banks for thread guides.
  • a so-called single thread monitor can also be installed in the area of the spinning rings, which monitors the rotation of the ring traveler and detects if a thread breakage has occurred on a ring spinning spindle or if the ring traveler is rotating at too low a speed.
  • the vertically displaceable, usually machine-long components of the ring spinning machine are controlled by means of appropriate drive mechanisms and, in conjunction with the ring spinning spindles rotatably mounted in the spindle rail, ensure that a thread is spun from the feed material, which is wound onto a ring spinning cop according to a definable spinning program becomes.
  • the ring spinning bobbins manufactured at the workplaces of such ring spinning machines contain relatively little yarn volume, they are wound into large-volume cross-wound bobbins in a subsequent operation at the workplaces of winding machines. During this rewinding process, the threads running off the ring spinning cops are constantly monitored for thread defects and thread defects that exceed predeterminable limit values are cleaned out.
  • the work stations of such winding machines are equipped with various thread handling or thread processing devices.
  • the work stations of such winding machines each have, for example, a winding device arranged in the area of the upper side of the machine, in which a cheese is mounted during the rewinding process and rotated, for example, by friction, as well as a receiving device arranged in the area of the machine foot, in which the spinning cop is functionally positioned for rewinding can.
  • the workstations of such automatic cheese winders also have, among other things, a thread tension sensor, a thread tensioner and an electronic thread cleaner, with all thread monitoring devices being connected to a so-called workstation computer, which is also connected to the central control unit of the automatic cheese winder via a machine bus or the like.
  • electronic thread cleaners are also known from numerous patent applications.
  • the thread drawn off the ring spinning cop runs during the rewinding process on its way to the cheese, among other things, through the electronic thread cleaner, which continuously monitors the running thread during the rewinding process for thread defects, e.g. thick places, thin places, hairiness, thread impurities, etc . If the thread clearer detects a thread defect that exceeds the specified limit values, this is reported to the workstation computer, which ensures that the thread defect is immediately cleaned out and replaced with a thread splice that is almost identical to the yarn.
  • the thread faults detected by the electronic thread cleaner are also passed on to the central control unit of the winding machine by the workstation computer.
  • the winding speeds at which the work stations of winding machines work are limited due to various physical conditions, in particular due to the yarn tension forces occurring during the rewinding process. That is, during a rewinding process, in which the thread preferably by means of a rotating thread balloon is drawn off overhead from the ring spinning bobbin, the thread tension, starting from a relatively low value at the beginning of the bobbin travel, increases sharply in the course of the bobbin travel grow, which significantly increases the risk of yarn breakage.
  • the thread tension can vary greatly during the rewinding process of a ring spinning bobbin if the winding of the ring spinning bobbin has problematic areas, that is, in particular areas in which there is a sharp increase in thread tension.
  • the DE 43 06 095 A1 discloses an interconnected system of ring spinning machines and winding machines, in which the status data of the manufactured ring spinning cops are recorded on the ring spinning machines. The status data is then forwarded to the winding machine, where the treatment of each individual ring spinning bobbin delivered from the ring spinning machine to the winding machine is adapted to the status data recorded during the manufacture of this ring spinning bobbin on the ring spinning machine.
  • status data include, for example, yarn breaks that have occurred during the manufacture of the ring spinning cop in question.
  • the DE 10 2010 021 152 A1 relates to a method for the production of spinning bobbins, in which the position and size of the winding is determined by evaluating the ability of the spinning bobbin to be unwound when rewinding a spinning bobbin on a winding machine, transmitting the result to the ring spinning machine and using the control of the ring spinning machine to optimize the position the winding is processed.
  • the invention is based on the object of developing a method and a device which make it possible to influence the winding state of ring spinning bobbins manufactured at work stations of ring spinning machines in such a way that the ring spinning bobbins during subsequent rewinding at the work stations of Winding machines have the best possible run-off behavior.
  • This object is achieved according to the invention by a method for influencing the winding state of ring spinning bobbins manufactured on spinning stations of ring spinning machines according to a predetermined spinning program, which are rewound to form cross bobbins at work stations of a winding machine downstream in the production process, the threads running off the ring spinning bobbins being constantly monitored, thread defects registered and Yarn defects that exceed specified limit values are cleaned out, with data that are determined by the workstations of the winding machines during the rewinding processes of the ring spinning bobbins and that relate to thread defects in the ring spinning bobbins being transmitted back to the control device of the associated ring spinning machine and used there to optimize the winding status of new ring spinning bobbins , whereby problematic winding areas of the ring spinning cops are determined by means of the thread defects.
  • the movement of the ring rail performing a double stroke is adjusted on the ring spinning machine during the winding of the ring spinning cops in winding areas determined to be problematic,
  • the method according to the invention has the particular advantage that winding data, which are determined at the work stations of the winding machine during the rewinding processes of the ring spinning bobbins and which indicate that the winding state of the ring spinning bobbins is not entirely perfect, specifically problematic winding areas, are used to Spinning stations of the ring spinning machine to influence the winding process of subsequent ring spinning cops in terms of "improving the winding condition".
  • problematic winding areas of the ring spinning cops are determined by means of the yarn defects.
  • the control device of the ring spinning machine ensures, for example, that corrective measures are taken in the winding areas determined to be problematic in the following ring spinning cops to be produced.
  • the movement of the ring rail executing a double stroke is changed at the work stations of the ring spinning machine during the winding phase of the ring spinning bobbins in winding areas determined to be problematic.
  • the winding condition of the ring spinning bobbins can be significantly improved in problematic winding areas, which then has a very positive effect when winding the ring spinning bobbins on the work stations of the winding machine.
  • the speed of movement and the size of the stroke must be adjusted.
  • the rotational speed of the ring spinning spindles is additionally reduced somewhat in winding areas of the ring spinning cops that are recognized as problematic.
  • problematic winding areas of the ring spinning cops can be effectively mitigated in a relatively simple manner. This means that these winding areas can be improved in such a way that thread defects are hardly registered when the ring spinning cops are subsequently wound at the work stations of the winding machine.
  • the spinning tension is additionally monitored at at least one of the work stations of the ring spinning machine and corrective intervention is made in the speed of the ring spinning spindles when a predeterminable limit value is reached.
  • Such an additional monitoring of the spinning tension can, for example, prevent a relatively large number of thread breaks or thread thin points occurring at the spinning positions of the ring spinning machine during the manufacture of the ring spinning cops due to excessive spinning tension, which have to be reworked at the work stations of the winding machine.
  • An advantageous embodiment is given when the data transmitted back to the ring spinning machine by the control device of the winding machine are combined in the control device of the ring spinning machine with the pulses of a single thread monitor and built up into a database for optimizing the winding status of new ring spinning cops.
  • the optimal spinning tension can be calculated from the impulses of the single thread monitor.
  • the winding state of future ring spinning cops can then easily be optimized by means of such a database.
  • the single thread monitor provides information about thread breaks on the ring pinning machine. Thread breaks later lead to thread defects on the winding machine. Preferably, the winding speed at the work stations of the winding machine as a function of the Ring spinning machine detected end breaks adjusted. This makes it easier to clean out the thread defects on the winding machine.
  • the device for carrying out the method according to the invention is a ring spinning machine with a large number of work stations on which ring spinning bobbins are manufactured, the windings of which are created according to a predetermined spinning program.
  • the ring spinning bobbins produced on the ring spinning machine are then wound into cheeses at the work stations of a winding machine downstream in the production process, with the threads running off the ring spinning bobbins being constantly monitored and the data determined being processed in a control device of the winding machine.
  • the control device of the winding machine is connected to a control device of the ring spinning machine via a bus system.
  • a bus system is data that are determined during the rewinding of the ring spinning bobbins at the work stations of the winding machines and relate to thread defects of the ring spinning bobbins, can be transmitted back to the control device of the ring spinning machine in question.
  • the control device of the ring spinning machine then converts the data to optimize the winding status of future ring spinning cops.
  • such a composite system preferably comprises at least one ring spinning machine with a large number of spinning positions on which ring spinning cops are manufactured, and at least one winding machine with a large number of winding positions on which ring spinning cops are wound into cross-wound bobbins. Since there is also a control system that transmits back to the control unit of the ring spinning machine data that was determined by the work stations of the winding machine during the winding process and, for example, relates to thread defects in the ring spinning cops, the method according to the invention can be implemented in a simple and cost-effective manner.
  • control device of the ring spinning machine is connected to the drives of the ring spinning spindles and to the drive of the ring rail and is designed in such a way that the movement of the ring rail performing a double stroke is corrected in the winding areas determined to be problematic by means of the yarn defects.
  • control device of the ring spinning machine is connected to the drives of the ring spinning spindles and to the drive of the ring rail and is designed in such a way that the speed of the ring spinning spindles is corrected in the winding areas identified as problematic by the yarn defects.
  • a targeted reduction in the speed of the ring spinning spindles can, for example It can be ensured in a relatively simple manner that problematic winding areas of the ring spinning cops are effectively mitigated.
  • a single thread monitor is additionally installed on at least one of the spinning positions of the ring spinning machine and connected to the control device of the ring spinning machine, which detects the current spinning tension during the manufacture of a ring spinning cop.
  • the single thread monitor is connected to the control device of the ring spinning machine, which on the one hand registers that a thread breakage or a so-called "creeping spindle" is present at the work station and on the other hand ensures that the speed of the ring spinning spindles is corrected when a predefinable limit value of the spinning tension is reached.
  • Such additional monitoring of the spinning tension can be used to prevent problematic winding areas from occurring during the manufacture of the ring spinning cops due to excessive spinning tension, i.e.
  • the 1 shows a schematic side view of a spinning station 50 of a ring spinning machine identified overall by the reference numeral 30 .
  • ring spinning machines 30 of this type are each equipped with a large number of such usually identical work stations, often also referred to as spinning stations 50, on both longitudinal sides of the machine.
  • a relatively fine thread 31 is spun from a template material, in the present case from a roving bobbin 21, which hangs in a so-called creel 23, which thread is wound up into a ring spinning cop 9. That is, the thread 31 is wound onto a slightly conical sleeve 34 which tapers from the sleeve foot 16 to the sleeve tip 17 .
  • the empty tube 34 of the ring spinning cop 9 is fixed on a ring spinning spindle 41 which is rotatably mounted in a spindle rail 39 and whose whorl 40 is subjected to rotational action by a circulating tangential belt 42 .
  • the spinning stations 50 of such ring spinning machines 30 also have a ring rail 27, a balloon limiter 43 and a yarn guide 36.
  • the ring rail 27, the balloon limiter 43 and the thread guide 36 are mounted so that they can be displaced vertically and can be moved up and down in a defined manner by drives 51, 52, 53.
  • the spinning stations 50 of such ring spinning machines 30 also have a drafting system 32 through which a sliver 48 taken from the roving bobbin 21 runs, which is also warped several times over.
  • the warped sliver 48 is twisted into a thread 31 on the drafting system output side by means of the rotating ring spinning spindle 41 or a ring traveler 33 dragged along by the thread.
  • the rotation of the ring spinning spindle 41 which is rotationally loaded by the tangential belt 42 , ensures that the ring traveler 33 is carried along by the thread 31 running onto the ring spinning cop 9 and rotates on the spinning ring 29 .
  • the rotation of the ring traveler 33 is also monitored by a so-called single thread monitor 49, which is connected via a signal line 54 to the control device 57 of the ring spinning machine 30, which in turn is connected via a bus system 58 to the control device 56 of a winding machine 1.
  • the delivery of the ring spinning machine 30 is determined by the speed of the pair of delivery rollers of the drafting system 32, and the delivery is specified in yarn length per unit of time, for example in meters per minute (m/min), the delivery and a time measurement can easily be used to determine the a ring spinning cop 9 wound thread length are determined.
  • the thread breaks occurring at the spinning stations 50 of the ring spinning machine 30 are also monitored and taken into account when determining the total thread length.
  • Thread breakage is preferably monitored by a so-called single thread monitor 49, which detects and registers the movement of ring traveler 33 when ring traveler 33, which rotates during normal operation, comes to a standstill in the event of a thread breakage. This means that the total thread length wound onto a ring spinning cop 9 and the number of thread breaks and their position are recorded and processed in the control device 57 of the ring spinning machine 30 .
  • the associated ring rail 27 is shifted as quickly as possible in the direction of the tube foot 16 in order to generate a minimum number of back-to-back windings on the ring spinning bobbin 9, and the doffing process is started after laying a so-called underwinding.
  • This means that the finished ring spinning cops 9 are pulled off the ring spinning spindles 41 of the ring spinning machine 30 by a doffing system (not shown) and transferred to the bobbin/tube transport system 3 of an in 3 shown, with the reference numeral 60 identified composite system.
  • FIG. 2 is a side view of a work station 2 of a textile machine producing cross-wound bobbins, in the present embodiment the winding station of a so-called cross-winding machine 1.
  • Such winding machines 1 also have a plurality of such work stations 2 arranged next to one another, on which feed bobbins, generally ring spinning cops 9, are wound into large-volume cross-wound bobbins 15.
  • the ring spinning cops 9 reach the individual work stations 2 via a bobbin/tube transport device 3, which connects the winding machine 1 to an upstream ring spinning machine 30.
  • the bobbin/tube transport device 3 comprises, as is known, a large number of transport routes , on which ring spinning cops 9 or empty bobbins 34 are conveyed in a vertical orientation on transport plates 8 .
  • the bobbin/tube transport device 3 has, for example, a cop feed section 4, a storage section 5, transverse transport sections 6 and a tube return section 7. In the area of the transverse transport sections 6, an unwinding position AS is arranged in each case, in which a ring spinning cop 9 provided for winding is arrested.
  • a thread 31 is drawn off from a ring spinning cop 9 positioned in the unwinding position AS, and on its way to the cross-wound bobbin 15 it first passes a lower thread sensor 19 which is connected to a workstation computer 35 via a signal line.
  • a lower thread sensor 19 is used to check after a bobbin interruption, for example after a thread breakage or a controlled thread cleaner cut, before initiating the upper thread search, whether there is a lower thread at all, i.e. whether initiating the upper thread search makes sense at all.
  • a thread tensioner 18 is arranged above the lower thread sensor 19 and has, for example, two brake plates which exert a slight contact pressure on the running thread 31 .
  • the thread tensioner 18 is also connected to the workstation computer 35 via a control line.
  • a thread cleaner 37 equipped with a thread cutting device is arranged in the area of the thread travel path.
  • This thread cleaner 37 is used to constantly monitor the quality of the running thread during the rewinding process, with the data determined by the thread cleaner 37 being fed via a signal line to the workstation computer 35 for evaluation, which is connected to the control device 56 of the winding machine 1 via a bus system 11.
  • the work station computer 35 When yarn faults occur that exceed predetermined limit values, the work station computer 35 also actuates the thread cutting device and thread 31 is severed.
  • a thread tension sensor 38 and, optionally, a paraffining device are also arranged downstream of the thread cleaner 37 in the thread running direction.
  • the yarn tension sensor 38 is also connected to the workstation computer 35 via a signal line.
  • the thread tension of the running thread 31 is constantly monitored by means of the thread tension sensor 38 and, according to the thread tension signal supplied by the thread tension sensor 38, the thread tensioner 18 via the workstation computer 35 driven. This means that the braking plates of the thread tensioner 18 apply a contact pressure to the thread 31 that ensures that the running thread 31 has a substantially constant thread tension that ensures a uniform packing density of the cross-wound bobbin 15 to be produced.
  • the cross-wound bobbin 15 is rotatably mounted in a winding device 24, i.e. the cross-wound bobbin 15 is rotatably mounted via a sleeve (not shown) in a bobbin frame 28, which is mounted to be limitedly pivotable about an axis of rotation 22, and lies with its outer circumference on a bobbin, for example driven by a single motor Coil drive roller 14, which entrains the cheese 15 via frictional engagement.
  • a thread traversing device 26 is installed in the area of the bobbin drive roller 14, which simultaneously traverses the thread 31 that is being produced, for example by means of a finger thread guide.
  • the work station 2 outside the regular thread path has a thread connecting device 10, for example a pneumatically operated thread splicer, which is also connected to the work station computer 35 via a signal line.
  • Work station 2 also has a suction nozzle 12 that can be subjected to negative pressure and is mounted so that it can rotate to a limited extent about a pivot axis 13, as well as a gripper tube 25 that can also be subjected to negative pressure and that can be pivoted to a limited extent about a pivot axis 20.
  • the gripper tube 25 is used to grip the thread end of a lower thread connected to the ring spinning cop 9 , which is usually held in the thread tensioner 18 after a controlled thread cleaning cut or after a thread breakage and for transferring this thread end to the thread connecting device 10.
  • the suction nozzle 12 is used for appropriate handling of the thread end of an accumulated on the cheese 15 upper thread.
  • a so-called bobbin changing circuit is initiated by the lower thread sensor 19 and a new ring spinning bobbin 9 is positioned in the unwinding position AS. If the ejected ring spinning cop 9 still has a residual winding, this is, as follows in connection with the 3 explained in more detail, a remaining cop preparation station 46 for remaining cops, where the thread end of the ring spinning cop 9 is prepared again in order to be able to unwind the remaining winding from the ring spinning cop 9 at one of the work stations 2.
  • the 3 shows schematically an interconnected system, identified overall by reference number 60, of a ring spinning machine 30 with a winding machine 1 downstream in the production process.
  • the interconnected system 60 has a bobbin/tube transport system 3, on which the ring spinning cops 9 produced on the spinning stations 50 of the ring spinning machine 30 are transported to the work stations 2 of the winding machine 1 and the unwound empty tubes 34 are transported back to the spinning stations 50 of the ring spinning machine 30.
  • the ring spinning cops 9 and the empty tubes 34 are during transport, as in 2 shown, positioned in a vertical orientation on transport plates 8.
  • the bobbin/tube transport system 3 in the area of the winding machine 1 has, among other things, a bobbin feed section 4, with a so-called bobbin preparation station 47 often being installed on the input side of the bobbin feed section 4.
  • the ring spinning bobbins 9 delivered on transport plates 8 from the ring spinning machine 30 are prepared for the winding process, i.e. the thread end of the ring spinning bobbins 9 is laid out in such a way that it can be easily grasped at the work stations 2 of the winding machine 1.
  • the prepared ring spinning cops 9 are then transported further via a branch line 44 to a reversing storage line 5 and distributed from there to the transverse transport lines 6, each of which has a so-called unwinding position AS in the area of the winding units 2.
  • the unwound empty tubes 34 are then transported back to the spinning stations 50 of the ring spinning machine 30 via the tube return path 7 .
  • this ring spinning bobbin 9 is discharged from the relevant work station 2 and fed to a remaining bobbin preparation station 46 for remaining bobbins.
  • This means that ring spinning bobbins 9 that have not been properly unwound are guided via a further branch line 45 to a residual bobbin preparation station 46 for residual bobbins and prepared there again.
  • the prepared residual bobbins are then fed back to the unwinding points AS in the area of the work stations 2 via the storage section 5 and the transverse transport sections 6 .
  • the interconnected system 60 also has a control system identified overall by the reference symbol 55 .
  • the control system 55 includes the control device 56 of the winding machine 1, the control device 57 of the ring spinning machine 30 and an interposed bus system 58.
  • the control device 56 usually has a plurality of subordinate control units, so-called workstation computers 35, which control certain decentralized processes.
  • workstation computers 35 which control certain decentralized processes.
  • Both the control device 56 of the winding machine 1 and the control device 57 of the ring spinning machine 30 evaluate sensor data and control associated actuators accordingly.
  • control devices 56 and 57 are connected to one another by means of a bus system 58 so that data and parameters can be easily exchanged between the control device 56 of the winding machine 1 and the control device 57 of the ring spinning machine 30 .
  • the control device 56 and the control device 57 each enable the winding machine 1 or the ring spinning machine 30 to be controlled according to predefined parameters or parameters determined according to the invention.
  • the control device 57 of the ring spinning machine 30 uses the data from the control device 56 of the winding machine 1 and the pulses of the single thread monitor 49 to determine a corrected setting for the speed of the ring spinning spindles 41 and/or the movement of the ring rail 27 each executing a double stroke. In this way, the Winding status of new ring spinning bobbins. This optimization preferably takes place continuously, so that the process has the character of a regulation. This means that the speed and/or double stroke are adjusted and the effect on the thread defects on the winding machine 1 is monitored.

Description

Die Erfindung betrifft ein Verfahren bzw. eine Vorrichtung zur Beeinflussung des Bewicklungszustandes von auf Spinnstellen von Ringspinnmaschinen nach einem vorgegebenen Spinnprogramm gefertigten Ringspinnkopsen, die auf Arbeitsstellen einer im Produktionsprozess nachgeschalteten Spulmaschine zu Kreuzspulen umgewickelt werden, wobei die von den Ringspinnkopsen ablaufenden Fäden ständig überwacht, Fadenfehler registriert sowie Fadenfehler, die vorgegebene Grenzwerte überschreiten, ausgereinigt werden.The invention relates to a method and a device for influencing the winding state of ring spinning bobbins manufactured on spinning stations of ring spinning machines according to a predetermined spinning program, which are rewound to form cross bobbins at work stations of a winding machine downstream in the production process, with the threads running off the ring spinning bobbins being constantly monitored and thread defects registered as well as thread defects that exceed specified limit values are cleaned out.

Verfahren und Vorrichtungen zur Herstellung von Ringspinnkopsen, die nachfolgend zu Kreuzspulen umgewickelt werden, sind seit langem bekannt und in zahlreichen Patentschriften ausführlich beschrieben.Methods and devices for the production of ring spinning cops, which are subsequently wound into cross-wound bobbins, have been known for a long time and are described in detail in numerous patents.

Die Textilmaschinen zur Herstellung von Ringspinnkopsen, so genannte Ringspinnmaschinen, weisen in der Regel im Bereich ihrer Maschinenlängsseiten jeweils eine Vielzahl von Arbeitsstellen, so genannte Spinnstellen, auf. Diese meistens identischen Arbeitsstellen verfügen ihrerseits jeweils über verschiedene Arbeitselemente, die entweder stationär oder vertikal verschiebbar gelagert sind. Auf jeder der Maschinenlängsseiten einer solchen Ringspinnmaschine sind beispielsweise ein Streckwerk zum Verziehen eines durch Vorlagespulen bereitgestellten Vorlagematerials sowie eine stationäre Spindelbank zur Aufnahme von rotierbar gelagerten Ringspinnspindeln vorgesehen. Die Vorlagespulen hängen dabei vorzugsweise in den Gatterreihen eines oberhalb der Ringspinnmaschine angeordneten Gatters. Derartige Textilmaschinen verfügen außerdem über vertikal verschiebbar gelagerte Ringbänke zur Aufnahme von Spinnringen und Ringläufern, über Bänke für Balloneinengungsringe sowie über Bänke für Fadenführer. Im Bereich der Spinnringe kann außerdem jeweils ein so genannter Einzelfadenwächter installiert sein, der den Umlauf des Ringläufers überwacht und detektiert, wenn an einer Ringspinnspindel ein Fadenbruch aufgetreten ist oder wenn der Ringläufer mit einer zu geringen Drehzahl rotiert.The textile machines for the production of ring spinning cops, so-called ring spinning machines, usually have a large number of work stations, so-called spinning stations, in the area of the longitudinal sides of the machine. In turn, these mostly identical jobs each have different working elements that are either mounted stationary or can be moved vertically. On each of the longitudinal machine sides of such a ring spinning machine, for example, a drafting system for drafting a template material provided by supply bobbins and a stationary spindle rail for receiving rotatably mounted ring spinning spindles are provided. The feed bobbins preferably hang in the creel rows of a creel arranged above the ring spinning machine. Textile machines of this type also have vertically displaceably mounted ring rails for receiving spinning rings and ring travellers, banks for balloon constriction rings and banks for thread guides. A so-called single thread monitor can also be installed in the area of the spinning rings, which monitors the rotation of the ring traveler and detects if a thread breakage has occurred on a ring spinning spindle or if the ring traveler is rotating at too low a speed.

Die vertikal verschiebbar gelagerten, in der Regel maschinenlangen Bauelemente der Ringspinnmaschine werden mittels entsprechender Antriebsmechanismen angesteuert und sorgen in Verbindung mit den in der Spindelbank rotierbar gelagerten Ringspinnspindeln dafür, dass aus dem Vorlagematerial jeweils ein Faden gesponnen wird, der gemäß einem vorgebbaren Spinnprogramm auf einen Ringspinnkops aufgewickelt wird.The vertically displaceable, usually machine-long components of the ring spinning machine are controlled by means of appropriate drive mechanisms and, in conjunction with the ring spinning spindles rotatably mounted in the spindle rail, ensure that a thread is spun from the feed material, which is wound onto a ring spinning cop according to a definable spinning program becomes.

Da die auf den Arbeitsstellen solcher Ringspinnmaschinen gefertigten Ringspinnkopse relativ wenig Garnvolumen enthalten, werden sie in einem nachfolgenden Arbeitsgang auf den Arbeitsstellen von Spulmaschinen zu großvolumigen Kreuzspulen umgewickelt. Während dieses Umspulvorganges werden die von den Ringspinnkopsen ablaufenden Fäden ständig auf Fadenfehler hin überwacht und Fadenfehler, die vorgebare Grenzwerte überschreiten, ausgereinigt.Since the ring spinning bobbins manufactured at the workplaces of such ring spinning machines contain relatively little yarn volume, they are wound into large-volume cross-wound bobbins in a subsequent operation at the workplaces of winding machines. During this rewinding process, the threads running off the ring spinning cops are constantly monitored for thread defects and thread defects that exceed predeterminable limit values are cleaned out.

Die Arbeitsstellen solcher Spulmaschinen sind zu diesem Zweck mit verschiedenen Fadenhandhabungs- bzw. Fadenbearbeitungseinrichtungen ausgestattet. Die Arbeitsstellen derartiger Spulmaschinen verfügen zum Beispiel jeweils über eine im Bereich der Maschinenoberseite angeordnete Spuleinrichtung, in der eine Kreuzspule während des Umspulvorganges gelagert ist und beispielsweise reibschlüssig rotiert wird sowie über eine im Bereich des Maschinenfußes angeordnete Aufnahmeeinrichtung, in der der Spinnkops zum Umspulen funktionsgerecht positioniert werden kann. Die Arbeitsstellen derartiger Kreuzspulautomaten weisen außerdem unter anderem jeweils einen Fadenzugkraftsensor, einen Fadenspanner sowie einen elektronischen Fadenreiniger auf, wobei alle Fadenüberwachungseinrichtungen an einen so genannten Arbeitsstellenrechner angeschlossen sind, der über einen Maschinenbus oder dgl. außerdem mit der Zentralsteuereinheit des Kreuzspulautomaten in Verbindung steht. Wie die anderen Fadenhandhabungs- bzw. Fadenbearbeitungseinrichtungen sind dabei auch elektronische Fadenreiniger durch zahlreiche Patentanmeldungen bekannt.For this purpose, the work stations of such winding machines are equipped with various thread handling or thread processing devices. The work stations of such winding machines each have, for example, a winding device arranged in the area of the upper side of the machine, in which a cheese is mounted during the rewinding process and rotated, for example, by friction, as well as a receiving device arranged in the area of the machine foot, in which the spinning cop is functionally positioned for rewinding can. The workstations of such automatic cheese winders also have, among other things, a thread tension sensor, a thread tensioner and an electronic thread cleaner, with all thread monitoring devices being connected to a so-called workstation computer, which is also connected to the central control unit of the automatic cheese winder via a machine bus or the like. Like the other thread handling or thread processing devices, electronic thread cleaners are also known from numerous patent applications.

Wie vorstehend angedeutet, läuft der vom Ringspinnkops abgezogene Faden während des Umspulvorganges auf seinem Weg zur Kreuzspule unter anderem durch den elektronischen Fadenreiniger, der den laufenden Faden während des Umspulprozesses fortwährend auf Fadenfehler, zum Beispiel Dickstellen, Dünnstellen, Haarigkeit, Fadenverunreinigungen etc., hin überwacht. Wenn der Fadenreiniger einen Fadenfehler detektiert, der vorgegebene Grenzwerte überschreitet, wird dies an den Arbeitsstellenrechner gemeldet, der dafür sorgt, dass der Fadenfehler sofort ausgereinigt und durch einen nahezu garngleichen Fadenspleiß ersetzt wird. Die durch den elektronischen Fadenreiniger detektierten Fadenfehler werden vom Arbeitsstellenrechner außerdem an die Zentralsteuereinheit der Spulmaschine weitergegeben.As indicated above, the thread drawn off the ring spinning cop runs during the rewinding process on its way to the cheese, among other things, through the electronic thread cleaner, which continuously monitors the running thread during the rewinding process for thread defects, e.g. thick places, thin places, hairiness, thread impurities, etc . If the thread clearer detects a thread defect that exceeds the specified limit values, this is reported to the workstation computer, which ensures that the thread defect is immediately cleaned out and replaced with a thread splice that is almost identical to the yarn. The thread faults detected by the electronic thread cleaner are also passed on to the central control unit of the winding machine by the workstation computer.

Wie im Zusammenhang mit dem Betrieb von Kreuzspulautomaten des Weiteren bekannt, sind die Spulgeschwindigkeiten, mit denen die Arbeitsstellen von Spulmaschinen arbeiten, aufgrund verschiedener physikalischer Gegebenheiten, insbesondere durch die während des Umspulvorganges auftretenden Fadenzugkräfte, begrenzt. Das heißt, während eines Umspulvorganges, bei dem der Faden vorzugsweise mittels eines rotierenden Fadenballons über Kopf vom Ringspinnkops abgezogen wird, steigt die Fadenzugkraft, ausgehend von einem relativ geringen Wert zu Beginn der Kopsreise, im Laufe der Kopsreise stark an, wobei im letzten Drittel der Kopsreise die Fadenzugkräfte, wenn keine wirksamen Gegenmaßnahmen ergriffen werden, auf ein Mehrfaches der Anfangsfadenzugkraft anwachsen, was die Gefahr von Fadenbrüchen erheblich erhöht.As is also known in connection with the operation of automatic cheese winders, the winding speeds at which the work stations of winding machines work are limited due to various physical conditions, in particular due to the yarn tension forces occurring during the rewinding process. That is, during a rewinding process, in which the thread preferably by means of a rotating thread balloon is drawn off overhead from the ring spinning bobbin, the thread tension, starting from a relatively low value at the beginning of the bobbin travel, increases sharply in the course of the bobbin travel grow, which significantly increases the risk of yarn breakage.

Des Weiteren kann die Fadenzugkraft während des Umspulvorganges eines Ringspinnkopses stark schwanken, wenn die Bewicklung des Ringspinnkopses problematische Bereiche aufweist, das heißt, insbesondere Bereiche, in denen es zu einem starken Anstieg der Fadenzugkraft kommt.Furthermore, the thread tension can vary greatly during the rewinding process of a ring spinning bobbin if the winding of the ring spinning bobbin has problematic areas, that is, in particular areas in which there is a sharp increase in thread tension.

Da sowohl Fadenbrüche als auch stark schwankende Fadenzugkräfte die Qualität einer Kreuzspule negativ beeinflussen, sind in der Vergangenheit bereits verschiedene Verfahren und Vorrichtungen entwickelt worden, mit denen das Abspulverhalten von Ringspinnkopsen verbessert werden sollte.Since both thread breaks and strongly fluctuating thread tension forces have a negative effect on the quality of a cheese, various methods and devices have already been developed in the past with which the powdering behavior of ring spinning cops should be improved.

In der CH-PS 669 177 ist beispielsweise eine Vorrichtung bzw. ein Verfahren beschrieben, bei der/dem eine Regelung der Spulgeschwindigkeit und damit auch der Fadenabzugsgeschwindigkeit in Abhängigkeit von der auf dem Ringspinnkops enthaltenen Restfadenmenge erfolgt. Das heißt, bei dieser bekannten Vorrichtung wird zu Beginn der Kopsreise zunächst mit einer relativ hohen Spulgeschwindigkeit gewickelt, die Spulgeschwindigkeit während des letzten Drittels der Kopsreise jedoch deutlich auf ein unkritisches Niveau abgesenkt.In the CH-PS 669 177 For example, a device or a method is described in which the winding speed and thus also the yarn take-off speed are regulated as a function of the amount of residual yarn contained on the ring spinning cop. This means that in this known device, at the beginning of the bobbin travel, winding is initially carried out at a relatively high winding speed, but the winding speed is significantly reduced to an uncritical level during the last third of the bobbin travel.

Mit diesem bekannten Verfahren konnte zwar eine Begrenzung der ohne entsprechende Maßnahmen während einer Kopsreise kontinuierlich anwachsenden Fadenzugkraft und damit eine deutliche Reduzierung der Fadenbrüche erreicht werden, die deutliche Herabsetzung der Spulgeschwindigkeit führt allerdings zu einer relativ geringen Durchschnittsspulgeschwindigkeit, was sich bezüglich des Wirkungsgrades derartiger Spulmaschinen negativ auswirkt.With this known method, it was possible to limit the thread tension that continuously increased during a bobbin travel without appropriate measures and thus achieve a significant reduction in thread breaks, but the significant reduction in the winding speed leads to a relatively low average winding speed, which has a negative effect on the efficiency of such winding machines .

Des Weiteren ist in der DE 43 06 095 A1 ein Verbundsystem von Ringspinnmaschinen und Spulmaschinen offenbart, bei dem an den Ringspinnmaschinen die Zustandsdaten der gefertigten Ringspinnkopse erfasst werden. Die Zustandsdaten werden dann an die Spulmaschine weitergegeben, wo die Behandlung jedes einzelnen von der Ringspinnmaschine an die Spulmaschine gelieferten Ringspinnkopses an die bei der Herstellung dieses Ringspinnkopses auf der Ringspinnmaschine erfassten Zustandsdaten angepasst wird. Zu solchen Zustandsdaten zählen beispielweise Fadenbrüche, die während der Herstellung des betreffenden Ringspinnkopses aufgetreten sind.Furthermore, in the DE 43 06 095 A1 discloses an interconnected system of ring spinning machines and winding machines, in which the status data of the manufactured ring spinning cops are recorded on the ring spinning machines. The status data is then forwarded to the winding machine, where the treatment of each individual ring spinning bobbin delivered from the ring spinning machine to the winding machine is adapted to the status data recorded during the manufacture of this ring spinning bobbin on the ring spinning machine. to Such status data include, for example, yarn breaks that have occurred during the manufacture of the ring spinning cop in question.

Aus der DE 10 2005 004 261 A1 ist es bekannt, dass an den Spulstellen der von Kopsen abgezogene Faden auf Fehler überwacht wird und dass in Abhängigkeit von der Häufigkeit eines Fehlers an einer bestimmten Position die Spindeldrehzahl angepasst wird.From the DE 10 2005 004 261 A1 It is known that the thread drawn off from the cops is monitored for errors at the winding positions and that the spindle speed is adjusted at a specific position depending on the frequency of an error.

Die DE 10 2010 021 152 A1 betrifft ein Verfahren zur Herstellung von Spinnkopsen, bei dem die Lage und Größe der Wicklung dadurch ermittelt wird, dass beim Umspulen eines Spinnkopses auf einer Spulmaschine das Abspulverhalten des Spinnkopses bewertet, das Ergebnis an die Ringspinnmaschine übermittelt und von der Steuerung der Ringspinnmaschine zur Optimierung der Lage der Wicklung verarbeitet wird.the DE 10 2010 021 152 A1 relates to a method for the production of spinning bobbins, in which the position and size of the winding is determined by evaluating the ability of the spinning bobbin to be unwound when rewinding a spinning bobbin on a winding machine, transmitting the result to the ring spinning machine and using the control of the ring spinning machine to optimize the position the winding is processed.

Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zu entwickeln, das/die es ermöglicht, den Bewicklungszustand von auf Arbeitsstellen von Ringspinnmaschinen gefertigten Ringspinnkopsen so zu beeinflussen, dass die Ringspinnkopse beim nachfolgenden Umspulen auf den Arbeitsstellen von Spulmaschinen ein möglichst optimales Ablaufverhalten aufweisen.Proceeding from the above-mentioned state of the art, the invention is based on the object of developing a method and a device which make it possible to influence the winding state of ring spinning bobbins manufactured at work stations of ring spinning machines in such a way that the ring spinning bobbins during subsequent rewinding at the work stations of Winding machines have the best possible run-off behavior.

Diese Aufgabe wird erfindungsgemäß durch ein Verfahren zur Beeinflussung des Bewicklungszustandes von auf Spinnstellen von Ringspinnmaschinen nach einem vorgegebenen Spinnprogramm gefertigten Ringspinnkopsen gelöst, die auf Arbeitsstellen einer im Produktionsprozess nachgeschalteten Spulmaschine zu Kreuzspulen umgewickelt werden, wobei die von den Ringspinnkopse ablaufenden Fäden ständig überwacht, Fadenfehler registriert sowie Fadenfehler, die vorgegebene Grenzwerte überschreiten, ausgereinigt werden, wobei Daten, die durch die Arbeitsstellen der Spulmaschinen während der Umspulvorgänge der Ringspinnkopse ermittelt werden und die Fadenfehler der Ringspinnkopse betreffen, an die Steuereinrichtung der zugehörigen Ringspinnmaschine zurückübermittelt und dort zur Optimierung des Bewicklungszustandes neuer Ringspinnkopse verwendet werden, wobei mittels der Fadenfehler problematische Bewicklungsbereiche der Ringspinnkopse ermittelt werden. Erfindungsgemäß wird an der Ringspinnmaschine während des Bewickelns der Ringspinnkopse in als problematisch ermittelten Bewicklungsbereichen die Bewegung der einen Doppelhub ausführenden Ringbank angepasst, wozu die Bewegungsgeschwindigkeit als auch die Größe des Hubes angepasst werden.This object is achieved according to the invention by a method for influencing the winding state of ring spinning bobbins manufactured on spinning stations of ring spinning machines according to a predetermined spinning program, which are rewound to form cross bobbins at work stations of a winding machine downstream in the production process, the threads running off the ring spinning bobbins being constantly monitored, thread defects registered and Yarn defects that exceed specified limit values are cleaned out, with data that are determined by the workstations of the winding machines during the rewinding processes of the ring spinning bobbins and that relate to thread defects in the ring spinning bobbins being transmitted back to the control device of the associated ring spinning machine and used there to optimize the winding status of new ring spinning bobbins , whereby problematic winding areas of the ring spinning cops are determined by means of the thread defects. According to the invention, the movement of the ring rail performing a double stroke is adjusted on the ring spinning machine during the winding of the ring spinning cops in winding areas determined to be problematic, for which purpose the movement speed and the size of the stroke are adjusted.

Vorteilhafte Ausführungsformen des erfindungsgemäßen Verfahrens bzw. der erfindungsgemäßen Vorrichtung sind Gegenstand der Unteransprüche.Advantageous embodiments of the method according to the invention and the device according to the invention are the subject matter of the dependent claims.

Das erfindungsgemäße Verfahren hat dabei insbesondere den Vorteil, dass Bewicklungsdaten, die auf den Arbeitsstellen der Spulmaschine während der Umspulprozesse der Ringspinnkopse ermittelt werden und die auf einen nicht ganz einwandfreien Bewicklungszustand der Ringspinnkopse, speziell auf problematisch Bewicklungsbereiche, hinweisen, dazu benutzt werden, um auf den Spinnstellen der Ringspinnmaschine den Wickelvorgang nachfolgender Ringspinnkopse im Sinne "Verbesserung des Bewicklungszustandes" zu beeinflussen. Das heißt, wenn mittels der Arbeitsstellen einer Spulmaschine festgestellt wird, dass die auf den Arbeitsstellen einer vorgeschalteten Ringspinnmaschine hergestellten Ringspinnkopse in bestimmten Bewicklungsbereichen verstärkt Fadenfehler aufweisen, wird die Steuereinrichtung der Ringspinnmaschine diesbezüglich informiert, die dann durch eine entsprechende Korrektur des eingestellten Spinnprogrammes reagiert.The method according to the invention has the particular advantage that winding data, which are determined at the work stations of the winding machine during the rewinding processes of the ring spinning bobbins and which indicate that the winding state of the ring spinning bobbins is not entirely perfect, specifically problematic winding areas, are used to Spinning stations of the ring spinning machine to influence the winding process of subsequent ring spinning cops in terms of "improving the winding condition". This means that if the work stations of a winding machine determine that the ring spinning bobbins produced at the work stations of an upstream ring spinning machine have increased thread defects in certain winding areas, the control device of the ring spinning machine is informed of this, which then reacts by correcting the set spinning program accordingly.

Erfindungsgemäß werden mittels der Fadenfehler problematische Bewicklungsbereiche der Ringspinnkopse ermittelt. Die Steuereinrichtung der Ringspinnmaschine sorgt beispielsweise dafür, dass bei den nachfolgenden zu fertigenden Ringspinnkopsen in den als problematisch ermittelten Bewicklungsbereichen Korrekturmaßnahmen ergriffen werden.According to the invention, problematic winding areas of the ring spinning cops are determined by means of the yarn defects. The control device of the ring spinning machine ensures, for example, that corrective measures are taken in the winding areas determined to be problematic in the following ring spinning cops to be produced.

Erfindungsgemäß ist vorgesehen, dass an den Arbeitsstellen der Ringspinnmaschine während der Bewicklungsphase der Ringspinnkopse in als problematisch ermittelten Bewicklungsbereichen die Bewegung der einen Doppelhub ausführenden Ringbank geändert wird. Durch eine entsprechende Anpassung der Bewegung der Ringbank kann in problematischen Bewicklungsbereichen der Bewicklungszustand der Ringspinnkopse deutlich verbessert werden, was sich anschließend beim Umwickeln der Ringspinnkopse auf den Arbeitsstellen der Spulmaschine sehr positiv bemerkbar macht. Es muss dabei die Bewegungsgeschwindigkeit als auch die Größe des Hubes angepasst werden.According to the invention, the movement of the ring rail executing a double stroke is changed at the work stations of the ring spinning machine during the winding phase of the ring spinning bobbins in winding areas determined to be problematic. By appropriate adjustment of the movement of the ring rail, the winding condition of the ring spinning bobbins can be significantly improved in problematic winding areas, which then has a very positive effect when winding the ring spinning bobbins on the work stations of the winding machine. The speed of movement and the size of the stroke must be adjusted.

In vorteilhafter Ausführungsform ist beispielsweise vorgesehen, dass an der Ringspinnmaschine in als problematisch erkannten Bewicklungsbereichen der Ringspinnkopse zusätzlich die Drehzahl der Ringspinnspindeln etwas verringert wird. Durch eine solche gezielte Verringerung der Drehzahl der Ringspinnspindeln können auf relativ einfache Weise problematische Bewicklungsbereiche der Ringspinnkopse wirksam entschärft werden. Das heißt, diese Bewicklungsbereiche können so verbessert werden, dass beim anschließenden Umwickeln der Ringspinnkopse auf den Arbeitsstellen der Spulmaschine kaum noch Fadenfehler registriert werden.In an advantageous embodiment, it is provided, for example, that on the ring spinning machine the rotational speed of the ring spinning spindles is additionally reduced somewhat in winding areas of the ring spinning cops that are recognized as problematic. By such a targeted reduction in the speed of the ring spinning spindles, problematic winding areas of the ring spinning cops can be effectively mitigated in a relatively simple manner. This means that these winding areas can be improved in such a way that thread defects are hardly registered when the ring spinning cops are subsequently wound at the work stations of the winding machine.

In einer weiteren vorteilhaften Verfahrensform ist vorgesehen, dass zusätzlich an wenigstens einer der Arbeitsstellen der Ringspinnmaschine die Spinnspannung überwacht und bei Erreichen eines vorgebbaren Grenzwertes korrigierend in die Drehzahl der Ringspinnspindeln eingegriffen wird. Durch eine solche zusätzliche Überwachung der Spinnspannung kann beispielsweise verhindert werden, dass es an den Spinnstellen der Ringspinnmaschine während der Fertigung der Ringspinnkopse aufgrund einer zu hohen Spinnspannung zu relativ vielen Fadenbrüchen oder Fadendünnstellen kommt, die auf den Arbeitsstellen der Spulmaschine nachgearbeitet werden müssen.In a further advantageous form of the method, it is provided that the spinning tension is additionally monitored at at least one of the work stations of the ring spinning machine and corrective intervention is made in the speed of the ring spinning spindles when a predeterminable limit value is reached. Such an additional monitoring of the spinning tension can, for example, prevent a relatively large number of thread breaks or thread thin points occurring at the spinning positions of the ring spinning machine during the manufacture of the ring spinning cops due to excessive spinning tension, which have to be reworked at the work stations of the winding machine.

Eine vorteilhafte Ausführungsform ist dabei gegeben, wenn die von der Steuereinrichtung der Spulmaschine an die Ringspinnmaschine zurückübermittelten Daten in der Steuereinrichtung der Ringspinnmaschine mit den Impulsen eines Einzelfadenwächters kombiniert und zu einer Datenbasis zur Optimierung des Bewicklungszustandes neuer Ringspinnkopse aufgebaut werden. Aus den Impulsen des Einzelfadenwächters lässt sich die optimale Spinnspannung errechnen. Mittels einer solchen Datenbank kann dann leicht der Bewicklungszustand zukünftiger Ringspinnkopse optimiert werden.An advantageous embodiment is given when the data transmitted back to the ring spinning machine by the control device of the winding machine are combined in the control device of the ring spinning machine with the pulses of a single thread monitor and built up into a database for optimizing the winding status of new ring spinning cops. The optimal spinning tension can be calculated from the impulses of the single thread monitor. The winding state of future ring spinning cops can then easily be optimized by means of such a database.

Der Einzelfadenwächter gibt Aufschluss über Fadenbrüche an der Ringpinnmaschine. Die Fadenbrüche führen später zu Fadenfehlern an der Spulmaschine. Vorzugsweise wird die Spulgeschwindigkeit an den Arbeitsstellen der Spulmaschine in Abhängigkeit von an der Ringspinnmaschine erfassten Fadenbrüchen angepasst. Dadurch wird die Ausreinigung der Fadenfehler an der Spulmaschine erleichtert.The single thread monitor provides information about thread breaks on the ring pinning machine. Thread breaks later lead to thread defects on the winding machine. Preferably, the winding speed at the work stations of the winding machine as a function of the Ring spinning machine detected end breaks adjusted. This makes it easier to clean out the thread defects on the winding machine.

Die Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens ist eine Ringspinnmaschine mit einer Vielzahl von Arbeitsstellen, auf denen Ringspinnkopse gefertigt werden, deren Bewicklungen nach einem vorgegeben Spinnprogramm erstellt sind. Die auf der Ringspinnmaschine hergestellten Ringspinnkopse werden anschließend auf den Arbeitsstellen einer im Produktionsprozess nachgeschalteten Spulmaschine zu Kreuzspulen umgewickelt, wobei die von den Ringspinnkopsen ablaufenden Fäden ständig überwacht und die ermittelten Daten in einer Steuereinrichtung der Spulmaschine verarbeitet werden.The device for carrying out the method according to the invention is a ring spinning machine with a large number of work stations on which ring spinning bobbins are manufactured, the windings of which are created according to a predetermined spinning program. The ring spinning bobbins produced on the ring spinning machine are then wound into cheeses at the work stations of a winding machine downstream in the production process, with the threads running off the ring spinning bobbins being constantly monitored and the data determined being processed in a control device of the winding machine.

Erfindungsgemäß ist vorgesehen, dass die Steuereinrichtung der Spulmaschine mit einer Steuereinrichtung der Ringspinnmaschine über ein Bussystem verbunden ist. Über dieses Bussystem sind Daten, die während der Umspulvorgänge der Ringspinnkopse an den Arbeitsstellen der Spulmaschinen ermittelt werden und die Fadenfehler der Ringspinnkopse betreffen, an die Steuereinrichtung der betreffenden Ringspinnmaschine zurückübermittelbar. Die Steuereinrichtung der Ringspinnmaschine setzt dann die Daten zur Optimierung des Bewicklungszustandes zukünftiger Ringspinnkopse um. Das bedeutet, ein solches Verbundsystem umfasst vorzugsweise mindestens eine Ringspinnmaschine mit einer Vielzahl von Spinnstellen, auf denen Ringspinnkopse gefertigt werden, und mindestens eine Spulmaschine mit einer Mehrzahl von Spulstellen, auf denen Ringspinnkopse zu Kreuzspulen umgewickelt werden. Da außerdem ein Steuersystem vorhanden ist, das Daten, die von den Arbeitsstellen der Spulmaschine während des Umwickelvorganges ermittelt wurden und zum Beispiel Fadenfehler der Ringspinnkopse betreffen, an die Steuereinheit der Ringspinnmaschine zurückzuübermitteln, kann das erfindungsgemäße Verfahren auf einfache und kostengünstige Weise realisiert werden.According to the invention, the control device of the winding machine is connected to a control device of the ring spinning machine via a bus system. About this bus system are data that are determined during the rewinding of the ring spinning bobbins at the work stations of the winding machines and relate to thread defects of the ring spinning bobbins, can be transmitted back to the control device of the ring spinning machine in question. The control device of the ring spinning machine then converts the data to optimize the winding status of future ring spinning cops. This means that such a composite system preferably comprises at least one ring spinning machine with a large number of spinning positions on which ring spinning cops are manufactured, and at least one winding machine with a large number of winding positions on which ring spinning cops are wound into cross-wound bobbins. Since there is also a control system that transmits back to the control unit of the ring spinning machine data that was determined by the work stations of the winding machine during the winding process and, for example, relates to thread defects in the ring spinning cops, the method according to the invention can be implemented in a simple and cost-effective manner.

Erfindungsgemäß ist vorgesehen, dass die Steuereinrichtung der Ringspinnmaschine an die Antriebe der Ringspinnspindeln und an den Antrieb der Ringbank angeschlossen und so ausgebildet ist, dass in den mittels der Fadenfehler als problematisch ermittelten Bewicklungsbereichen die Bewegung der jeweils einen Doppelhub ausführenden Ringbank korrigiert wird.According to the invention, the control device of the ring spinning machine is connected to the drives of the ring spinning spindles and to the drive of the ring rail and is designed in such a way that the movement of the ring rail performing a double stroke is corrected in the winding areas determined to be problematic by means of the yarn defects.

In weiterer vorteilhafter Ausbildung der Vorrichtung ist außerdem vorgesehen, dass die Steuereinrichtung der Ringspinnmaschine an die Antriebe der Ringspinnspindeln und an den Antrieb der Ringbank angeschlossen und so ausgebildet ist, dass in den mittels der Fadenfehler als problematisch ermittelten Bewicklungsbereichen die Drehzahl der Ringspinnspindeln korrigiert wird.In a further advantageous embodiment of the device, it is also provided that the control device of the ring spinning machine is connected to the drives of the ring spinning spindles and to the drive of the ring rail and is designed in such a way that the speed of the ring spinning spindles is corrected in the winding areas identified as problematic by the yarn defects.

Durch eine gezielte Verringerung der Drehzahl der Ringspinnspindeln kann beispielsweise auf relativ einfache Weise sichergestellt werden, dass problematische Bewicklungsbereiche der Ringspinnkopse wirksam entschärft werden.A targeted reduction in the speed of the ring spinning spindles can, for example It can be ensured in a relatively simple manner that problematic winding areas of the ring spinning cops are effectively mitigated.

Das Auftreten von Fadenfehlern während der Fertigung der Ringspinnkopse wird erfindungsgemäß dadurch vermieden oder zumindest stark reduziert, dass während der Bewicklungsphase der Ringspinnkopse in als problematisch ermittelten Bewicklungsbereichen die Bewegung der einen Doppelhub ausführenden Ringbank der Ringspinnmaschine angepasst wird.The occurrence of thread defects during the manufacture of the ring spinning bobbins is avoided or at least greatly reduced according to the invention by the fact that during the winding phase of the ring spinning bobbins the movement of the ring rail of the ring spinning machine performing a double stroke is adjusted in winding areas determined to be problematic.

Durch eine Anpassung der Bewegung der Ringbank kann verhindert werden, dass es in den problematischen Bewicklungsbereichen der Ringspinnkopse zur Entstehung von Fadenfehlern kommt, die anschließend durch die Spulmaschine wieder beseitigt werden müssen.By adapting the movement of the ring rail, it is possible to prevent thread defects from occurring in the problematic winding areas of the ring spinning cops, which then have to be eliminated again by the winding machine.

In weiterer vorteilhafter Ausführungsform ist außerdem vorgesehen, dass zusätzlich an wenigstens einer der Spinnstellen der Ringspinnmaschine ein Einzelfadenwächter installiert und an die Steuereinrichtung der Ringspinnmaschine angeschlossen ist, der während der Fertigung eines Ringspinnkopses die aktuelle Spinnspannung erfasst. Der Einzelfadenwächter ist an die Steuereinrichtung der Ringspinnmaschine angeschlossen, die einerseits registriert, dass an der Arbeitsstelle ein Fadenbruch oder eine so genannte "Schleichspindel" vorliegt und anderseits dafür sorgt, dass bei Erreichen eines vorgebbaren Grenzwertes der Spinnspannung die Drehzahl der Ringspinnspindeln korrigiert wird. Durch eine solche zusätzliche Überwachung der Spinnspannung kann auf einfache Weise verhindert werden, dass es während der Fertigung der Ringspinnkopse aufgrund einer zu hohen Spinnspannung zum Entstehen problematischer Wicklungsbereiche kommt, das heißt, zum Entstehen von Wicklungsbereichen, in denen die Gefahr besteht, dass es vermehrt zu Fadenbrüchen oder relativ vielen Fadendünnstellen kommt, die nachfolgend auf den Arbeitsstellen der Spulmaschine bearbeitet werden müssen. Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.In a further advantageous embodiment, it is also provided that a single thread monitor is additionally installed on at least one of the spinning positions of the ring spinning machine and connected to the control device of the ring spinning machine, which detects the current spinning tension during the manufacture of a ring spinning cop. The single thread monitor is connected to the control device of the ring spinning machine, which on the one hand registers that a thread breakage or a so-called "creeping spindle" is present at the work station and on the other hand ensures that the speed of the ring spinning spindles is corrected when a predefinable limit value of the spinning tension is reached. Such additional monitoring of the spinning tension can be used to prevent problematic winding areas from occurring during the manufacture of the ring spinning cops due to excessive spinning tension, i.e. winding areas from occurring in which there is a risk that there is an increased risk of Yarn breaks or a relatively large number of thread thin points that must subsequently be processed on the jobs of the winding machine. The invention is explained in more detail below with reference to an exemplary embodiment illustrated in the drawings.

Es zeigt:

Fig. 1
schematisch eine Spinnstelle einer Ringspinnmaschine, während der Herstellung eines Ringspinnkopses,
Fig. 2
schematisch eine Arbeitsstelle einer Spulmaschine, während des Umwickelns eines Ringspinnkopses auf eine Kreuzspule,
Fig. 3
ein Verbundsystem, bestehend aus einer Ringspinnmaschine, die eine Vielzahl der in Fig. 1 dargestellten Spinnstellen aufweist, und einer nachgeschalteten Spulmaschine, die über die in Fig. 2 dargestellten Arbeitsstellen verfügt.
It shows:
1
schematic of a spinning position of a ring spinning machine during the manufacture of a ring spinning cop,
2
Schematically a work station of a winding machine while winding a ring spinning cop onto a cross-wound bobbin,
3
a composite system consisting of a ring spinning machine, which has a large number of the in 1 spinning positions shown, and a downstream winding machine, which has the in 2 jobs shown.

Die Fig. 1 zeigt schematisch in Seitenansicht eine Spinnstelle 50 einer insgesamt mit dem Bezugszeichen 30 gekennzeichneten Ringspinnmaschine.the 1 shows a schematic side view of a spinning station 50 of a ring spinning machine identified overall by the reference numeral 30 .

Wie bekannt, sind derartige Ringspinnmaschinen 30 auf beiden Maschinenlängsseiten jeweils mit einer Vielzahl solcher in der Regel identischer, oft auch als Spinnstellen 50 bezeichneter Arbeitsstellen ausgestattet.As is known, ring spinning machines 30 of this type are each equipped with a large number of such usually identical work stations, often also referred to as spinning stations 50, on both longitudinal sides of the machine.

Auf diesen Spinnstellen 50 wird aus einem Vorlagematerial, im vorliegenden Fall aus einer Flyerspule 21, die in einem so genannten Gatter 23 hängt, ein relativ feiner Faden 31 gesponnen, der zu einem Ringspinnkops 9 aufgewickelt wird. Das heißt, der Faden 31 wird auf eine leicht konische Hülse 34 gewickelt, die sich vom Hülsenfuß 16 zur Hülsenspitze 17 verjüngt.On these spinning positions 50, a relatively fine thread 31 is spun from a template material, in the present case from a roving bobbin 21, which hangs in a so-called creel 23, which thread is wound up into a ring spinning cop 9. That is, the thread 31 is wound onto a slightly conical sleeve 34 which tapers from the sleeve foot 16 to the sleeve tip 17 .

Während des Spinnprozesses ist die Leerhülse 34 des Ringspinnkopses 9 auf einer Ringspinnspindel 41 festgelegt, die in einer Spindelbank 39 rotierbar gelagert ist und deren Wirtel 40 durch einen umlaufenden Tangentialriemen 42 rotatorisch beaufschlagt wird.During the spinning process, the empty tube 34 of the ring spinning cop 9 is fixed on a ring spinning spindle 41 which is rotatably mounted in a spindle rail 39 and whose whorl 40 is subjected to rotational action by a circulating tangential belt 42 .

Wie bekannt, weisen die Spinnstellen 50 solcher Ringspinnmaschinen 30 außerdem eine Ringbank 27, einen Ballonbegrenzer 43 sowie einen Fadenführer 36 auf. Die Ringbank 27, der Ballonbegrenzer 43 und der Fadenführer 36 sind dabei vertikal verschiebbar gelagert und können durch Antriebe 51, 52, 53 definiert auf und ab bewegt werden. Die Spinnstellen 50 derartiger Ringspinnmaschinen 30 verfügen des Weiteren über ein Streckwerk 32, durch das ein von der Flyerspule 21 abgenommenes Faserband 48 läuft, das dabei außerdem um ein Mehrfaches verzogen wird. Das verzogene Faserband 48 wird streckwerksausgangsseitig mittels der rotierenden Ringspinnspindel 41 bzw. eines vom Faden mitgeschleppten Ringläufers 33 zu einem Faden 31 gedreht. Das heißt, der aus dem Streckwerk 32 ausgetretene Faden 31 gelangt nach dem Durchlaufen des Fadenführers 36 und des Ballonbegrenzers 43 zu einem Ringläufer 33, der beweglich auf einem Spinnring 29 gelagert ist, welcher seinerseits fest auf der Ringbank 27 installiert ist.As is known, the spinning stations 50 of such ring spinning machines 30 also have a ring rail 27, a balloon limiter 43 and a yarn guide 36. The ring rail 27, the balloon limiter 43 and the thread guide 36 are mounted so that they can be displaced vertically and can be moved up and down in a defined manner by drives 51, 52, 53. The spinning stations 50 of such ring spinning machines 30 also have a drafting system 32 through which a sliver 48 taken from the roving bobbin 21 runs, which is also warped several times over. The warped sliver 48 is twisted into a thread 31 on the drafting system output side by means of the rotating ring spinning spindle 41 or a ring traveler 33 dragged along by the thread. This means that the thread 31 exiting the drafting system 32, after passing through the thread guide 36 and the balloon limiter 43, reaches a ring traveler 33 which is movably mounted on a spinning ring 29, which in turn is permanently installed on the ring rail 27.

Die Drehung der durch den Tangentialriemen 42 rotatorisch beaufschlagten Ringspinnspindel 41 sorgt dafür, dass der Ringläufer 33 durch den auf den Ringspinnkops 9 auflaufenden Faden 31 mitgenommen wird und auf dem Spinnring 29 rotiert.The rotation of the ring spinning spindle 41 , which is rotationally loaded by the tangential belt 42 , ensures that the ring traveler 33 is carried along by the thread 31 running onto the ring spinning cop 9 and rotates on the spinning ring 29 .

Vorteilhafterweise wird die Rotation des Ringläufers 33 außerdem durch einen so genannten Einzelfadenwächter 49 überwacht, der über eine Signalleitung 54 an die Steuereinrichtung 57 der Ringspinnmaschine 30 angeschlossen ist, die ihrerseits über ein Bussystem 58 mit der Steuereinrichtung 56 einer Spulmaschine 1 verbunden ist.Advantageously, the rotation of the ring traveler 33 is also monitored by a so-called single thread monitor 49, which is connected via a signal line 54 to the control device 57 of the ring spinning machine 30, which in turn is connected via a bus system 58 to the control device 56 of a winding machine 1.

Da durch die Drehzahl des Lieferwalzenpaares des Streckwerkes 32 die Lieferung der Ringspinnmaschine 30 bestimmt wird, und die Lieferung in Garnlänge pro Zeiteinheit angegeben wird, zum Beispiel in Meter pro Minute (m/min), kann beispielsweise aus der Lieferung und einer Zeitmessung leicht die auf einen Ringspinnkops 9 gewickelte Fadenlänge ermittelt werden. Um die Gesamtfadenlänge eines Ringspinnkops 9 zu bestimmen, werden außerdem die an den Spinnstellen 50 der Ringspinnmaschine 30 auftretenden Fadenbrüche überwacht und bei der Ermittlung der Gesamtfadenlänge berücksichtigt.Since the delivery of the ring spinning machine 30 is determined by the speed of the pair of delivery rollers of the drafting system 32, and the delivery is specified in yarn length per unit of time, for example in meters per minute (m/min), the delivery and a time measurement can easily be used to determine the a ring spinning cop 9 wound thread length are determined. In order to determine the total thread length of a ring spinning cop 9, the thread breaks occurring at the spinning stations 50 of the ring spinning machine 30 are also monitored and taken into account when determining the total thread length.

Die Überwachung von Fadenbrüchen erfolgt dabei vorzugsweise über einen so genannten Einzelfadenwächter 49, der die Bewegung des Ringläufers 33 detektiert und registriert, wenn der Ringläufer 33, der im normalen Betrieb rotiert, bei einem Fadenbruch zum Stillstand kommt. Das bedeutet, die auf einen Ringspinnkops 9 gewickelte Gesamtfadenlänge sowie die Anzahl von Fadenbrüchen und deren Lage wird in der Steuereinrichtung 57 der Ringspinnmaschine 30 erfasst und verarbeitet.Thread breakage is preferably monitored by a so-called single thread monitor 49, which detects and registers the movement of ring traveler 33 when ring traveler 33, which rotates during normal operation, comes to a standstill in the event of a thread breakage. This means that the total thread length wound onto a ring spinning cop 9 and the number of thread breaks and their position are recorded and processed in the control device 57 of the ring spinning machine 30 .

Nach der Fertigstellung der Ringspinnkopse 9 einer Maschinenlängsseite wird die zugehörige Ringbank 27, um eine minimale Anzahl Hinterwindungen auf dem Ringspinnkops 9 zu generieren, schnellstmöglich in Richtung des Hülsenfußes 16 verlagert und nach dem Legen einer so genannten Unterwindung der Doffvorgang gestartet. Das heißt, die fertiggestellten Ringspinnkopse 9 werden durch ein nicht dargestelltes Doffsystem von den Ringspinnspindeln 41 der Ringspinnmaschine 30 abgezogen und an das Spulen-/Hülsentransportsystem 3 eines in Fig. 3 dargestellten, mit dem Bezugszeichen 60 gekennzeichneten Verbundsystems übergeben.After completion of the ring spinning bobbin 9 on one long side of the machine, the associated ring rail 27 is shifted as quickly as possible in the direction of the tube foot 16 in order to generate a minimum number of back-to-back windings on the ring spinning bobbin 9, and the doffing process is started after laying a so-called underwinding. This means that the finished ring spinning cops 9 are pulled off the ring spinning spindles 41 of the ring spinning machine 30 by a doffing system (not shown) and transferred to the bobbin/tube transport system 3 of an in 3 shown, with the reference numeral 60 identified composite system.

In Fig. 2 ist in Seitenansicht eine Arbeitsstelle 2 einer Kreuzspulen herstellenden Textilmaschine, im vorliegenden Ausführungsbeispiel die Spulstelle eines so genannten Kreuzspulautomaten 1, dargestellt. Derartige Spulmaschinen 1 verfügen ebenfalls über eine Mehrzahl solcher nebeneinander angeordneter Arbeitsstellen 2, auf denen Vorlagespulen, in der Regel Ringspinnkopse 9, zu großvolumigen Kreuzspulen 15 umgewickelt werden.In 2 is a side view of a work station 2 of a textile machine producing cross-wound bobbins, in the present embodiment the winding station of a so-called cross-winding machine 1. Such winding machines 1 also have a plurality of such work stations 2 arranged next to one another, on which feed bobbins, generally ring spinning cops 9, are wound into large-volume cross-wound bobbins 15.

Die Ringspinnkopse 9 gelangen dabei über eine Spulen-/ Hülsentransporteinrichtung 3, die die Spulmaschine 1 mit einer vorgeschalteten Ringspinnmaschine 30 verbindet, zu den einzelnen Arbeitsstellen 2. Das heißt, die Spulen-/ Hülsentransporteinrichtung 3 umfasst, wie an sich bekannt, eine Vielzahl von Transportstrecken, auf denen, in vertikaler Ausrichtung auf Transporttellern 8 aufgesteckt, Ringspinnkopse 9 bzw. Leerhülsen 34 befördert werden. Das Spulen-/ Hülsentransporteinrichtung 3 weist beispielsweise eine Kopszuführstrecke 4, eine Speicherstrecke 5, Quertransportstrecken 6 sowie eine Hülsenrückführstrecke 7 auf. Im Bereich der Quertransportstrecken 6 ist dabei jeweils eine Abspulposition AS angeordnet, in der ein zum Umwickeln vorgesehener Ringspinnkops 9 arretiert wird. Das heißt, von einem in der Abspulposition AS positionierten Ringspinnkops 9 wird ein Faden 31 abgezogen, der auf seinem Weg zur Kreuzspule 15 zunächst einen Unterfadensensor 19 passiert, der über eine Signalleitung mit einem Arbeitsstellenrechner 35 verbunden ist. Mittels eines solchen Unterfadensensors 19 wird nach einer Spulunterbrechung, zum Beispiel nach einem Fadenbruch oder einem kontrollierten Fadenreinigerschnitt, vor Einleitung der Oberfadensuche, überprüft, ob überhaupt ein Unterfaden vorhanden ist, das heißt, ob die Einleitung der Oberfadensuche überhaupt sinnvoll ist.The ring spinning cops 9 reach the individual work stations 2 via a bobbin/tube transport device 3, which connects the winding machine 1 to an upstream ring spinning machine 30. This means that the bobbin/tube transport device 3 comprises, as is known, a large number of transport routes , on which ring spinning cops 9 or empty bobbins 34 are conveyed in a vertical orientation on transport plates 8 . The bobbin/tube transport device 3 has, for example, a cop feed section 4, a storage section 5, transverse transport sections 6 and a tube return section 7. In the area of the transverse transport sections 6, an unwinding position AS is arranged in each case, in which a ring spinning cop 9 provided for winding is arrested. This means that a thread 31 is drawn off from a ring spinning cop 9 positioned in the unwinding position AS, and on its way to the cross-wound bobbin 15 it first passes a lower thread sensor 19 which is connected to a workstation computer 35 via a signal line. Such a lower thread sensor 19 is used to check after a bobbin interruption, for example after a thread breakage or a controlled thread cleaner cut, before initiating the upper thread search, whether there is a lower thread at all, i.e. whether initiating the upper thread search makes sense at all.

Oberhalb des Unterfadensensors 19 ist ein Fadenspanner 18 angeordnet, der beispielsweise zwei Bremsteller aufweist, die auf den laufenden Faden 31 einen leichten Anpressdruck ausüben. Auch der Fadenspanner 18 ist über eine Steuerleitung mit dem Arbeitsstellenrechner 35 verbunden.A thread tensioner 18 is arranged above the lower thread sensor 19 and has, for example, two brake plates which exert a slight contact pressure on the running thread 31 . The thread tensioner 18 is also connected to the workstation computer 35 via a control line.

Im Bereich des Fadenlaufweges ist des Weiteren ein mit einer Fadenschneideinrichtung ausgestatteter Fadenreiniger 37 angeordnet. Mittels dieses Fadenreinigers 37 wird während des Umspulprozesses ständig die Qualität des laufenden Fadens überwacht, wobei die vom Fadenreiniger 37 ermittelten Daten über eine Signalleitung dem Arbeitsstellenrechner 35 zur Auswertung zugeführt werden, der über ein Bussystem 11 an die Steuereinrichtung 56 der Spulmaschine 1 angeschlossen ist. Beim Auftreten von Garnfehlern, die vorgegebene Grenzwerte überschreiten, wird von dem Arbeitsstellenrechner 35 außerdem die Fadenschneideinrichtung betätigt und der Faden 31 getrennt.Furthermore, a thread cleaner 37 equipped with a thread cutting device is arranged in the area of the thread travel path. This thread cleaner 37 is used to constantly monitor the quality of the running thread during the rewinding process, with the data determined by the thread cleaner 37 being fed via a signal line to the workstation computer 35 for evaluation, which is connected to the control device 56 of the winding machine 1 via a bus system 11. When yarn faults occur that exceed predetermined limit values, the work station computer 35 also actuates the thread cutting device and thread 31 is severed.

In Fadenlaufrichtung nach dem Fadenreiniger 37 sind noch ein Fadenzugkraftsensor 38 sowie optional oft eine Paraffiniereinrichtung angeordnet. Der Fadenzugkraftsensor 38 ist dabei über eine Signalleitung ebenfalls an den Arbeitsstellenrechner 35 angeschlossen. Während des Spulbetriebes wird mittels des Fadenzugkraftsensors 38 ständig die Fadenzugkraft des laufenden Fadens 31 überwacht und entsprechend des vom Fadenzugkraftsensor 38 gelieferten Fadenzugkraftsignals über den Arbeitsstellenrechner 35 der Fadenspanner 18 angesteuert. Das heißt, die Bremsteller des Fadenspanners 18 beaufschlagen den Faden 31 mit einem Anpressdruck, der sicherstellt, dass sich am laufenden Faden 31 eine im wesentlichen konstante Fadenzugkraft einstellt, die eine gleichmäßige Packungsdichte der zu fertigenden Kreuzspule 15 gewährleistet.A thread tension sensor 38 and, optionally, a paraffining device are also arranged downstream of the thread cleaner 37 in the thread running direction. The yarn tension sensor 38 is also connected to the workstation computer 35 via a signal line. During the winding operation, the thread tension of the running thread 31 is constantly monitored by means of the thread tension sensor 38 and, according to the thread tension signal supplied by the thread tension sensor 38, the thread tensioner 18 via the workstation computer 35 driven. This means that the braking plates of the thread tensioner 18 apply a contact pressure to the thread 31 that ensures that the running thread 31 has a substantially constant thread tension that ensures a uniform packing density of the cross-wound bobbin 15 to be produced.

Die Kreuzspule 15 ist drehbar in einer Spulvorrichtung 24 gehaltert, das heißt, die Kreuzspule 15 ist über eine nicht näher dargestellte Hülse rotierbar in einem um eine Drehachse 22 begrenzt schwenkbar gelagerten Spulenrahmen 28 gelagert und liegt dabei mit ihrem Außenumfang auf einer, zum Beispiel einzelmotorisch angetriebenen Spulenantriebswalze 14 auf, die die Kreuzspule 15 über Reibschluss mitnimmt. Im Bereich der Spulenantriebswalze 14 ist außerdem eine Fadenchangiereinrichtung 26 installiert, die, beispielsweise mittels eines Fingerfadenführers, den auflaufenden Faden 31 gleichzeitig traversiert.The cross-wound bobbin 15 is rotatably mounted in a winding device 24, i.e. the cross-wound bobbin 15 is rotatably mounted via a sleeve (not shown) in a bobbin frame 28, which is mounted to be limitedly pivotable about an axis of rotation 22, and lies with its outer circumference on a bobbin, for example driven by a single motor Coil drive roller 14, which entrains the cheese 15 via frictional engagement. In addition, a thread traversing device 26 is installed in the area of the bobbin drive roller 14, which simultaneously traverses the thread 31 that is being produced, for example by means of a finger thread guide.

Wie in Fig. 2 dargestellt, weist die Arbeitsstelle 2 außerhalb des regulären Fadenlaufweges eine Fadenverbindungseinrichtung 10, zum Beispiel einen pneumatisch arbeitenden Fadenspleißer auf, die über eine Signalleitung ebenfalls mit dem Arbeitsstellenrechner 35 verbunden ist. Die Arbeitsstelle 2 verfügt ferner über eine unterdruckbeaufschlagbare, um eine Schwenkachse 13 begrenzt drehbar gelagerte Saugdüse 12 sowie über ein ebenfalls unterdruckbeaufschlagbares, um eine Schwenkachse 20 begrenzt drehbar gelagertes Greiferrohr 25. Das Greiferrohr 25 dient dabei zum Ergreifen des Fadenendes eines mit dem Ringspinnkops 9 verbundenen Unterfadens, der nach einem kontrollierten Fadenreinigungsschnitt oder nach einem Fadenbruch in der Regel im Fadenspanner 18 gehalten ist und zum Überführen dieses Fadenendes an die Fadenverbindungseinrichtung 10.As in 2 shown, the work station 2 outside the regular thread path has a thread connecting device 10, for example a pneumatically operated thread splicer, which is also connected to the work station computer 35 via a signal line. Work station 2 also has a suction nozzle 12 that can be subjected to negative pressure and is mounted so that it can rotate to a limited extent about a pivot axis 13, as well as a gripper tube 25 that can also be subjected to negative pressure and that can be pivoted to a limited extent about a pivot axis 20. The gripper tube 25 is used to grip the thread end of a lower thread connected to the ring spinning cop 9 , which is usually held in the thread tensioner 18 after a controlled thread cleaning cut or after a thread breakage and for transferring this thread end to the thread connecting device 10.

Die Saugdüse 12 dient zur entsprechenden Handhabung des Fadenendes eines auf die Kreuzspule 15 aufgelaufenen Oberfadens.The suction nozzle 12 is used for appropriate handling of the thread end of an accumulated on the cheese 15 upper thread.

Bei einem Fadenbruch unterhalb des Fadenspanners 18 oder nach dem vollständigen Abspulen des Ringspinnkopses 9 wird durch den Unterfadensensor 19 eine so genannte Kopswechselschaltung initiiert und dabei ein neuer Ringspinnkops 9 in der Abspulstellung AS positioniert. Wenn der ausgeschleuste Ringspinnkops 9 noch eine Restbewicklung aufweist, wird dieser, wie nachfolgend im Zusammenhang mit der Fig. 3 näher erläutert, einer Restkopsvorbereitungsstation 46 für Restkopse zugeführt, wo das Fadenende des Ringspinnkopses 9, um an einer der Arbeitsstellen 2 auch die Restbewicklung vom Ringspinnkops 9 abspulen zu können, erneut vorbereitet wird.If the thread breaks below the thread tensioner 18 or after the ring spinning bobbin 9 has been completely unwound, a so-called bobbin changing circuit is initiated by the lower thread sensor 19 and a new ring spinning bobbin 9 is positioned in the unwinding position AS. If the ejected ring spinning cop 9 still has a residual winding, this is, as follows in connection with the 3 explained in more detail, a remaining cop preparation station 46 for remaining cops, where the thread end of the ring spinning cop 9 is prepared again in order to be able to unwind the remaining winding from the ring spinning cop 9 at one of the work stations 2.

Vollständig abgespulte Leerhülsen 34 werden anschließend über die Hülsenrückführstrecke 7 des Spulen-/ Hülsentransportsystem 3 wieder der Ringspinnmaschine 30 zugeführt.Completely unwound empty tubes 34 are then fed back to the ring spinning machine 30 via the tube return section 7 of the bobbin/tube transport system 3 .

Die Fig. 3 zeigt schematisch ein insgesamt mit dem Bezugszeichen 60 gekennzeichnetes Verbundsystem einer Ringspinnmaschine 30 mit einer im Produktionsprozess nachgeschalteten Spulmaschine 1.the 3 shows schematically an interconnected system, identified overall by reference number 60, of a ring spinning machine 30 with a winding machine 1 downstream in the production process.

Das Verbundsystem 60 weist ein Spulen-/ Hülsentransportsystem 3 auf, auf dem die auf den Spinnstellen 50 der Ringspinnmaschine 30 gefertigten Ringspinnkopse 9 zu den Arbeitsstellen 2 der Spulmaschine 1 transportiert und die abgespulten Leerhülsen 34 zu den Spinnstellen 50 der Ringspinnmaschine 30 zurücktransportiert werden. Die Ringspinnkopse 9 und die Leerhülsen 34 sind während des Transportes, wie in Fig. 2 dargestellt, in vertikaler Ausrichtung auf Transporttellern 8 positioniert. Wie aus Fig. 3 ersichtlich, weist das Spulen-/ Hülsentransportsystem 3 im Bereich der Spulmaschine 1 unter anderem eine Kopszuführstrecke 4 auf, wobei eingangsseitig der Kopszuführstrecke 4 oft eine so genannte Kopsvorbereitungsstation 47 installiert ist. In der Kopsvorbereitungsstation 47 werden die auf Transporttellern 8 von der Ringspinnmaschine 30 angelieferten Ringspinnkopse 9 für den Spulprozess vorbereitet, das heißt, das Fadenende der Ringspinnkopse 9 wird jeweils so bereit gelegt, dass es an den Arbeitsstellen 2 der Spulmaschine 1 leicht erfasst werden kann. Die vorbereiteten Ringspinnkopse 9 werden anschließend weiter über eine Zweigstrecke 44 zu einer reversierend antreibbaren Speicherstrecke 5 transportiert und von da auf die Quertransportstrecken 6 verteilt, die im Bereich der Spulstellen 2 jeweils eine so genannte Abspulstellung AS aufweisen.The interconnected system 60 has a bobbin/tube transport system 3, on which the ring spinning cops 9 produced on the spinning stations 50 of the ring spinning machine 30 are transported to the work stations 2 of the winding machine 1 and the unwound empty tubes 34 are transported back to the spinning stations 50 of the ring spinning machine 30. The ring spinning cops 9 and the empty tubes 34 are during transport, as in 2 shown, positioned in a vertical orientation on transport plates 8. How out 3 As can be seen, the bobbin/tube transport system 3 in the area of the winding machine 1 has, among other things, a bobbin feed section 4, with a so-called bobbin preparation station 47 often being installed on the input side of the bobbin feed section 4. In the bobbin preparation station 47, the ring spinning bobbins 9 delivered on transport plates 8 from the ring spinning machine 30 are prepared for the winding process, i.e. the thread end of the ring spinning bobbins 9 is laid out in such a way that it can be easily grasped at the work stations 2 of the winding machine 1. The prepared ring spinning cops 9 are then transported further via a branch line 44 to a reversing storage line 5 and distributed from there to the transverse transport lines 6, each of which has a so-called unwinding position AS in the area of the winding units 2.

Nach beendendem Umspulprozess werden die abgespulten Leerhülsen 34 dann über die Hülsenrückführstrecke 7 zu den Spinnstellen 50 der Ringspinnmaschine 30 zurücktransportiert.After the end of the rewinding process, the unwound empty tubes 34 are then transported back to the spinning stations 50 of the ring spinning machine 30 via the tube return path 7 .

Wenn das Fadenende eines neuen Ringspinnkopses 9 an einer Arbeitsstelle 2 der Spulmaschine 1 nicht erfasst werden kann, weil beispielsweise das Fadenende in der Kopsvorbereitungsstation 47 nicht korrekt vorbereitet wurde, wird dieser Ringspinnkops 9 aus der betreffenden Arbeitsstelle 2 ausgeschleust und einer Restkopsvorbereitungsstation 46 für Restkopse zugeführt. Das heißt, nicht ordnungsgemäß abgespulte Ringspinnkopse 9 werden über eine weitere Zweigstrecke 45 zu einer Restkopsvorbereitungsstation 46 für Restkopse geführt und dort erneut vorbereitet. Die vorbereiteten Restkopse werden dann über die Speicherstrecke 5 und die Quertransportstrecken 6 wieder den Abspulstellen AS im Bereich der Arbeitsstellen 2 zugeführt.If the thread end of a new ring spinning bobbin 9 cannot be detected at a work station 2 of the winding machine 1, for example because the thread end was not correctly prepared in the bobbin preparation station 47, this ring spinning bobbin 9 is discharged from the relevant work station 2 and fed to a remaining bobbin preparation station 46 for remaining bobbins. This means that ring spinning bobbins 9 that have not been properly unwound are guided via a further branch line 45 to a residual bobbin preparation station 46 for residual bobbins and prepared there again. The prepared residual bobbins are then fed back to the unwinding points AS in the area of the work stations 2 via the storage section 5 and the transverse transport sections 6 .

Das Verbundsystem 60 weist des Weiteren ein insgesamt mit dem Bezugszeichen 55 gekennzeichnetes Steuersystem auf. In dem dargestellten Ausführungsbeispiel beinhaltet das Steuersystem 55 die Steuereinrichtung 56 der Spulmaschine 1, die Steuereinrichtung 57 der Ringspinnmaschine 30 sowie ein zwischengeschaltetes Bussystem 58. Das heißt, die Steuereinrichtung 56 weist dabei in der Regel eine Mehrzahl unterlagerte Steuereinheiten, so genannte Arbeitsstellenrechner 35 auf, die bestimmte dezentral Prozesse steuern. Sowohl die Steuereinrichtung 56 der Spulmaschine 1 als auch die Steuereinrichtung 57 der Ringspinnmaschine 30 wertet dabei Sensordaten aus und steuert entsprechend zugehörige Aktoren an.The interconnected system 60 also has a control system identified overall by the reference symbol 55 . In the illustrated embodiment, the control system 55 includes the control device 56 of the winding machine 1, the control device 57 of the ring spinning machine 30 and an interposed bus system 58. This means that the control device 56 usually has a plurality of subordinate control units, so-called workstation computers 35, which control certain decentralized processes. Both the control device 56 of the winding machine 1 and the control device 57 of the ring spinning machine 30 evaluate sensor data and control associated actuators accordingly.

Wie vorstehend angedeutet, sind die Steuereinrichtungen 56 und 57 mittels eines Bussystems 58 so miteinander verbunden, so dass zwischen der Steuereinrichtung 56 der Spulmaschine 1 und der Steuereinrichtung 57 der Ringspinnmaschine 30 problemlos Daten und Parameter ausgetauscht werden können. Die Steuereinrichtung 56 und die Steuereinrichtung 57 ermöglichen jeweils die Steuerung der Spulmaschine 1 bzw. der Ringspinnmaschine 30 nach vorgegebenen beziehungsweise erfindungsgemäß ermittelten Parametern.As indicated above, the control devices 56 and 57 are connected to one another by means of a bus system 58 so that data and parameters can be easily exchanged between the control device 56 of the winding machine 1 and the control device 57 of the ring spinning machine 30 . The control device 56 and the control device 57 each enable the winding machine 1 or the ring spinning machine 30 to be controlled according to predefined parameters or parameters determined according to the invention.

Die Steuereinrichtung 57 der Ringspinnmaschine 30 ermittelt aus den Daten der Steuereinrichtung 56 der Spulmaschine 1 und den Impulsen des Einzelfadenwächters 49 eine korrigierte Einstellung der Drehzahl der Ringspinnspindeln 41 und/oder der Bewegung der jeweils einen Doppelhub ausführenden Ringbank 27. Auf diese Weise erfolgt eine Optimierung des Bewicklungszustandes neuer Ringspinnkopse. Diese Optimierung erfolgt vorzugsweise kontinuierlich, so dass der Prozess den Charakter eine Regelung aufweist. Das heißt, Drehzahl und/oder Doppelhub werden angepasst und die Wirkung auf die Fadenfehler an der Spulmaschine 1 überwacht. Bezugszeichenliste 1 Spulmaschine 32 Streckwerk 2 Arbeitsstelle 33 Ringläufer 3 Spulen-/ Hülsentransportsystem 34 Leerhülse 4 Kopszuführstrecke 35 Arbeitsstellenrechner 5 Speicherstrecke 36 Fadenführer 6 Quertransportstrecke 37 Fadenreiniger 7 Hülsenrückführstrecke 38 Fadenzugkraftsensor 8 Transportteller 39 Spindelbank 9 Ringspinnkops 40 Wirtel 10 Fadenverbindungseinrichtung 41 Ringspinnspindel 11 Bussystem 42 Tangentialriemen 12 Saugdüse 43 Ballonbegrenzer 13 Schwenkachse 44 Zweigstrecke 14 Spulenantriebswalze 45 Zweigstrecke 15 Kreuzspule 46 Restkopsvorbereitungsstation 16 Hülsenfuß 47 Kopsvorbereitungsstation 17 Hülsenspitze 48 Faserband 18 Fadenspanner 49 Einzelfadenwächter 19 Unterfadensensor 50 Spinnstelle 20 Schwenkachse 51 Antrieb 21 Flyerspule 52 Antrieb 22 Drehachse 53 Antrieb 23 Gatter 54 Signalleitung 24 Spulvorrichtung 55 Steuersystem 25 Greiferrohr 56 Steuereinrichtung 26 Fadenchangiereinrichtung 57 Steuereinrichtung 27 Ringbank 58 Bussystem 28 Spulenrahmen 29 Spinnring 60 Verbundsystem 30 Ringspinnmaschine 31 Faden AS Abspulstellung The control device 57 of the ring spinning machine 30 uses the data from the control device 56 of the winding machine 1 and the pulses of the single thread monitor 49 to determine a corrected setting for the speed of the ring spinning spindles 41 and/or the movement of the ring rail 27 each executing a double stroke. In this way, the Winding status of new ring spinning bobbins. This optimization preferably takes place continuously, so that the process has the character of a regulation. This means that the speed and/or double stroke are adjusted and the effect on the thread defects on the winding machine 1 is monitored. <b>Reference List</b> 1 Dishwasher 32 drafting system 2 place of work 33 ring traveler 3 Spool/tube transport system 34 empty shell 4 bobbin feed line 35 job calculator 5 storage route 36 thread guide 6 cross transport section 37 thread cleaner 7 sleeve return line 38 thread tension sensor 8th transport plate 39 spindle bank 9 ring spinning cop 40 whorl 10 thread connecting device 41 ring spinning spindle 11 bus system 42 tangential belt 12 suction nozzle 43 balloon limiter 13 pivot axis 44 branch line 14 bobbin drive roller 45 branch line 15 cone 46 Residual bobbin preparation station 16 sleeve foot 47 bobbin preparation station 17 sleeve tip 48 sliver 18 thread tensioner 49 single thread monitor 19 bobbin thread sensor 50 spinning position 20 pivot axis 51 drive 21 flyer spool 52 drive 22 axis of rotation 53 drive 23 gate 54 signal line 24 spooling device 55 control system 25 gripper tube 56 control device 26 thread traversing device 57 control device 27 ring bank 58 bus system 28 bobbin frame 29 spinning ring 60 composite system 30 ring spinning machine 31 thread AS unwind position

Claims (8)

  1. Method for influencing the winding state of ring spinning bobbins (9) produced at spinning positions (50) of ring spinning machines (30) in accordance with a specified spinning program, which ring spinning bobbins (9) are rewound to form cross-wound packages (15) at workstations (2) of a winding machine (1), which is downstream in the production process, wherein the threads (31) running off of the ring spinning bobbins (9) are continuously monitored, thread faults are registered, and thread faults exceeding specified limit values are cleared,
    wherein data that are determined by the workstations (2) of the winding machines (1) during the rewinding procedures of the ring spinning bobbins (9) and that relate to thread faults of the ring spinning bobbins (9) are transmitted back to the control device (57) of the associated ring spinning machine (30) and are used there to optimise the winding state of new ring spinning bobbins (9),
    and wherein problematic winding regions of the ring spinning bobbins (9) are identified by means of the thread faults,
    characterised in that,
    at the ring spinning machine (30) during the winding of the ring spinning bobbins (9), the motion of the ring rail (27) performing a double stroke is adjusted in winding regions identified as problematic, for which purpose the motion speed and the magnitude of the stroke are adjusted.
  2. Method according to claim 1, characterised in that, at the ring spinning machine (30) during the winding of the ring spinning bobbins (9), the rotational speed of the ring spinning spindles (41) is corrected in winding regions identified as problematic.
  3. Method according to one of the preceding claims, characterised in that, at at least one of the spinning positions (50) of the ring spinning machine (30) during the production of the ring spinning bobbins (9), the spinning tension is additionally monitored and, if a specifiable limit value of the spinning tension is reached, the rotational speed of the ring spinning spindles (41) is corrected.
  4. Method according to one of the preceding claims, characterised in that the data transmitted back to the ring spinning machine (30) by the control device (56) of the winding machine (1) are combined, in the control device (57) of the ring spinning machine (30), with the pulses of an individual thread monitor (49) of a spinning position (50) of the ring spinning machine (30) and are structured to form a database for optimising the winding state of new ring spinning bobbins (9).
  5. Method according to one of the preceding claims, characterised in that the winding speed is adjusted at the workstations (2) of the winding machine (1) in dependence on thread breaks sensed at the ring spinning machine (30).
  6. Apparatus for carrying out the method according to one of claims 1 to 5, comprising a ring spinning machine (30), which has a plurality of spinning positions (50), at which ring spinning bobbins (9) are produced, the windings of which are created in accordance with a specified spinning program, and a winding machine (1), which is downstream in the production process and at the workstations (2) of which the ring spinning bobbins (9) are rewound to form cross-wound packages (15), wherein the threads (31) running off of the ring spinning bobbins (9) are continuously monitored and the determined data are processed in a control device (56) of the winding machine (1), characterised in that
    the control device (56) of the winding machine (1) is connected to a control device (57) of the ring spinning machine (30) by means of a bus system (58) in such a way that data that are determined during the rewinding procedures of the ring spinning bobbins (9) at the workstations (2) of the winding machines (1) and that relate to thread faults of the ring spinning bobbins (9) can be transmitted back to the control device (57) of the ring spinning machine (30) in question and can be used there to optimise the winding state of new ring spinning bobbins (9),
    and in that the control device (57) of the ring spinning machine (30) is designed in such a way and connected to a drive for the ring spinning spindles (41) and to a drive for a ring rail (27) in such a way that the motion of the ring rail (27) performing a double stroke is adjusted in the winding regions identified as problematic by means of the thread faults, for which purpose the motion speed and the magnitude of the stroke are adjusted.
  7. Apparatus according to claim 6, characterised in that the control device (57) of the ring spinning machine (30) is designed in such a way and connected to a drive for the ring spinning spindles (41) and to a drive for a ring rail (27) in such a way that the rotational speed of the ring spinning spindles (41) is corrected in the winding regions identified as problematic by means of the thread faults.
  8. Apparatus according to one of claims 6 to 7, characterised in that, at at least one of the spinning positions (50) of the ring spinning machine (30), an individual thread monitor (49) is installed, which is connected to the control device (57) of the ring spinning machine (30) and which senses the current spinning tension during the production of the ring spinning bobbin (9), wherein the control device (57) ensures that, if a specifiable limit value of the spinning tension is reached, the rotational speed of the ring spinning spindles (41) is corrected.
EP19178479.2A 2018-06-11 2019-06-05 Method and device for adjusting the winding of bobbins Active EP3581687B1 (en)

Applications Claiming Priority (1)

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DE102018113886.5A DE102018113886A1 (en) 2018-06-11 2018-06-11 Method and device for influencing the Bewicklungszustandes ring spinning cops

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EP3581687B1 true EP3581687B1 (en) 2022-10-19

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JP (1) JP7463063B2 (en)
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JP7463063B2 (en) 2024-04-08
CN110578192B (en) 2022-08-30
EP3581687A1 (en) 2019-12-18
JP2019214476A (en) 2019-12-19
DE102018113886A1 (en) 2019-12-12

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