EP3109194A1 - Procede et dispositif d'optimisation de l'epaisseur de bobines croisees fabriquee sur des postes de travail d'un automate de bobines croisees - Google Patents

Procede et dispositif d'optimisation de l'epaisseur de bobines croisees fabriquee sur des postes de travail d'un automate de bobines croisees Download PDF

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Publication number
EP3109194A1
EP3109194A1 EP16001161.5A EP16001161A EP3109194A1 EP 3109194 A1 EP3109194 A1 EP 3109194A1 EP 16001161 A EP16001161 A EP 16001161A EP 3109194 A1 EP3109194 A1 EP 3109194A1
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EP
European Patent Office
Prior art keywords
wound
cross
thread
cheese
bobbin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16001161.5A
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German (de)
English (en)
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EP3109194B1 (fr
Inventor
Michael Iding
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 Germany GmbH and Co KG
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Publication of EP3109194A1 publication Critical patent/EP3109194A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/06—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making cross-wound packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H61/00—Applications of devices for metering predetermined lengths of running material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/082—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to a predetermined size or diameter of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/13—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/14—Diameter, e.g. of roll or package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a method and a device for optimizing the density of cross-wound bobbins produced on workstations of a cheese winder, the work stations each being equipped with a device connected to a workstation computer for detecting a yarn length wound onto the cross-wound bobbin and a device for determining the diameter of the cross-wound bobbin and a yarn tension control device with a yarn tensile force sensor and a yarn tensioner.
  • Textile machines producing cross-wound bobbins for example automatic packages
  • Such textile machines usually consist of a plurality of juxtaposed in series, similar jobs, each of the jobs on different thread handling respectively thread monitoring devices and a workstation has computer, which is in connection with the thread handling respectively thread monitoring devices.
  • the individual workstation computers are also connected, preferably via a bus connection, to a central control unit of the automatic package winder.
  • the quality of the yarn material of the spinning cops is improved by eliminating thread defects, for example thick and thin spots. That is, the current, attracted by the spinning cop thread is monitored by a so-called thread cleaner, which initiates a cleaner cut and a cleaning of the thread error when discovering a thread error.
  • the traveling thread is continuously scanned by a yarn tension sensor, and the yarn tension is held at a predetermined level by means of a thread tensioner. In this way, the most uniform possible winding of the thread is ensured on the cheese and the production of cheeses with a given density can be ensured.
  • the achievable winding speed depends on the yarn quality of the master material, the detachment process of the yarn from the supply spool and the thread tension. That is, during the unwinding of a supply spool, a thread tension which increases constantly towards the end area of the spinning cop sets in, which largely depends on the friction with which the thread slides over the sleeve shaft of the spinning cop during removal. In particular, towards the end of the coil travel, for example, if only about 10% of the thread length is present on the supply spool, the yarn tension increases sharply.
  • a workstation computer determines the contact pressure of a braking device of a thread tensioner acting on the running thread in accordance with the thread tension determined by a thread tensile force sensor.
  • the predetermined contact pressure is compared with a predetermined limit value for the contact pressure, and if the limit value is reached or exceeded for a predefinable period of time, the winding process is interrupted. In this way it can be prevented that a cheese is wound too soft unnoticed, for example due to an incorrect guidance of the thread in the area of the thread tensioner.
  • the jobs each have a drive device for the cross-wound bobbin, which is equipped with a variable-speed drive, as well as a yarn tension control device with a yarn tension force sensor and a thread tensioner.
  • an intervention in the winding speed of the job takes place only when limits are reached for the thread tension control, that is, for example, when the thread tensioner has reached an opening end position and at the same time there is another offset value in the thread tension.
  • the diameter of a cross-wound reel driven by a friction roller is determined during its production by detecting and evaluating the angular speed of the cross-wound bobbin by means of a sensor which corresponds to a component co-rotating with the cross-wound bobbin.
  • the diameter of the cheese is specifically determined by dividing the peripheral speed of the surface of the cheese by the angular speed of the cheese, wherein the peripheral speed of the cheese is calculated by means of a time of flight correlation method from the sensor signals of two circumferentially at a fixed distance successive sensors that detect surface features of the cheese.
  • the DE 198 49 192 A1 describes a method by means of which at the work stations of a cheese winder to be optimized by a self-acting service unit Wienspulen grill sauvor réelle to be optimized.
  • the control device of the service unit is continuously informed by the workstations about the current diameter of the cheese running on the work packages, so that the service unit can be positioned at a pending cheese change on time at the relevant workstation of the cheese winder.
  • the determination of the diameter of the cheeses is done in this case by sensor devices which are present anyway at the workstations of such cross-winding machines.
  • the bobbin speed of the cheese is detected by a arranged on the creel tachometer and processed taking into account the present, also sensory detected speed of the drive drum whose exact diameter is known, permanently for determining the instantaneous diameter of the cheese.
  • the present invention seeks to develop a method by which the density of cross-wound bobbins produced on jobs of a cheese winder can be optimized. That is, the density of all produced on the jobs of a cheese package cheeses should be evened out as possible.
  • a check of its density is carried out by matching the wound thread length with the present diameter, and subsequently the respectively determined density of the cheese compared with the densities of wound on other jobs of the cheese winder cheese.
  • a density correction factor which results from the respective value of the density deviation of the wound cheese, in the yarn tension control device the job intervened. That is, by using a density correction factor can be ensured that the next to be wound on this work package each has a lower density deviation than its predecessor.
  • the wound packages of the other jobs are previously produced cheeses or cheeses produced at the same time or just in the production process, in which the parameters required for the comparison or adjustment have already been determined.
  • the parameters of all workstations can be used for the comparison or comparison.
  • a parallel comparison or comparison of all currently produced cross-wound bobbins of the automatic winder can be carried out.
  • the two aforementioned methods can be combined with one another in such a way that, after the respective correction factor has been established, it is decided which correction factor is taken for regulating engagement in the thread tension control device and transmitted accordingly to the thread tension control device.
  • the decision criterion or the decision criteria can be determined in advance and stored in a memory connected to or associated with the central control unit.
  • the criterion may be a determination that the correction factor from the method according to the first-mentioned embodiment or the second-mentioned embodiment is always used.
  • An alternative criterion may be, for example, that the correction factor is selected and transmitted, which is based in a relative comparison on a greater deviation to the corresponding limit.
  • the correction factors can be created such that the correction factors are comparable to one another.
  • the yarn tension force of a running yarn used for winding a cross-wound bobbin by means of the yarn tensile force sensor of the yarn tension control device of the workstation is respectively corrected with a calculated correction factor.
  • this correction factor results, for example, from the density deviation of the relevant cross-wound bobbin with respect to the densities of the cross-wound bobbins wound on the other work stations of the cross-wound bobbin winder. This means that it is corrected in such a way that the cross-wound bobbin to be subsequently produced at the relevant workstation has a density which corresponds to the average density of the cheeses previously produced on the other work stations of the cheese-winder.
  • a density correction factor may be applied to correct the yarn tension control thread tensioner of the job in question.
  • the correction factor is applied to the control of the winding speed.
  • the correction factor is in each case stored safely in the workstation of the workstation or in the central control unit of the automatic cheese winder.
  • the respective device for carrying out the corresponding method has in each case a workstation computer to which a device for detecting a yarn length wound onto the cross-wound bobbin and a device for determining the diameter of the cross-wound bobbin are connected. Furthermore, the work stations each have a thread tension control device with a yarn tension force sensor and a thread tensioner.
  • the workstation computers of the jobs are also connected to a central control unit of the cheese winder.
  • the workstation computers are designed such that when a cross-wound bobbin is wound on a workstation of the cross-wound bobbin, a determined diameter of the cross-wound bobbin or, if a predetermined diameter is reached, a detected thread length is transmitted to a central control unit.
  • the transmitted value is compared with determined corresponding values of cross-wound bobbins wound on other work stations of the cross-wound bobbin, and a correction factor is created when a limit value of the deviation of the value of this cross bobbin from the corresponding values of the cross bobbins wound on the other work stations of the cross-winding bobbin is exceeded. which results from the value of the deviation of this cheese.
  • the value of the deviation may be an average of the deviation from the adjusted values, a maximum value of the deviation from the adjusted values, or a selected value of the deviation from the adjusted values.
  • the selected value of the deviation may represent a representative value of the deviation from the adjusted values, the selected value being different than the maximum value and mean value of the deviation from the adjusted values.
  • the selected value of the deviation may be a most frequently occurring value of the deviation from the adjusted values.
  • the workstation computers are designed such that when a cross wound on a work station of the cheese winding achieves a predetermined thread length or upon reaching a predetermined diameter, the density of the cheese determined by an adjustment of the wound thread length with the present diameter and the determined density is transmitted to a central control unit.
  • the central control unit is set up to compare the determined density of this cross-wound bobbin with determined densities of cross-wound bobbins wound on other workstations of the cross-wound winder. When a limit value of the deviation of the density of this cheese from the densities of the wound on the other jobs of the cheese winding cheese crosses a density correction factor is calculated, which results from the respective value of the density deviation cheeses.
  • the respective created correction factor is then transmitted to a thread tension control device. If necessary, for example, by the thread tension control device of the workplace on the basis of the correction factor intervenes regulating.
  • the preferred embodiment devices described above may be configured to carry out the combination of the preferred methods described above.
  • the work computer and the central control unit are to be set up or trained accordingly.
  • Fig.1 is in front view schematically a generally designated by the reference numeral 1 cross-cheesemaking textile machine, in the embodiment, a so-called cross-winding machine, shown.
  • Such automatic packages 1 usually have between their end frames 2 and 3 a plurality of similar jobs 4. On these jobs 4, which are also known as winding units, spinning cops 5, which were produced in the production process upstream (not shown) ring spinning machines, rewound to large-volume cheeses 6.
  • the finished cheeses are transferred by means of a (also not shown) automatically operating service unit on a machine-length cheese packages transport 33 and then transported to a machine end side arranged Spulenverladestation or the like. That is, a known per se service unit, such as a so-called cheese changer, takes a finished cross-wound bobbin 6 from a creel 30 of the jobs 4 and passes them to the cross-wound bobbin 33. Subsequently, the service unit changes a new cross-coil empty tube in the creel 30th the relevant job 4.
  • a known per se service unit such as a so-called cheese changer
  • bobbin and tube transport system instead of such a bobbin and tube transport system, however, reciprocating machines can also have their own spinning magazine magazines, which are then preferably designed as so-called round magazines and are manually loaded by the operating personnel.
  • automatic packages 1 are generally also equipped with a central control unit 10, which is connected via a bus connection 11 to the workstations computers 12 of the individual workstations 4.
  • Fig. 2 shows a side view of a workstation 4 of a cheese winder 1 with the main thread handling respectively thread monitoring devices that are used during the rewinding process.
  • a thread 13 is withdrawn from such a workstation 4 from a spinning cop 5 arranged in a winding position I, which initially passes on its way to the cheese 6 a lower thread 14, which is connected via a signal line 15 to the workstation computer 12.
  • a lower thread sensor 14 for example, after a thread break or a controlled thread cleaner cut, before initiating an upper thread search, it is determined whether a so-called lower thread is present at all.
  • a thread tensioner 16 is arranged, which, as for example in Figure 3 indicated, with two brake elements exerts a contact pressure on the current thread 13.
  • the thread tensioner 16 is connected via a control line 17 to the workstation computer 12 and controlled by this controlled.
  • a yarn end connection device 18 preferably a pneumatic yarn splicer.
  • the yarn splicer 18 is also connected to the workstation computer 12 via a control line 19.
  • a thread cleaner 20 with a thread cutting device 21, a yarn tension sensor 22 and optionally a waxing device 23 are arranged. These functional elements are connected via control lines 24 - 27 to the workstation computer 12.
  • the yarn tension force of the running yarn 13 is constantly monitored by means of the yarn tension sensor 22 and driven according to a yarn tension force sensor 22 supplied yarn tension force on the workstation computer 12 of the thread tensioner 16 so that the yarn 13 is wound with a nearly constant yarn tension on the cheese 6.
  • a thread guide 28 which the thread 13 traverses before it strikes a rotating winding drum 29, for example a thread guide drum, which ensures crosswise laying of the thread 13 on the cheese 6, follows the waxing device 23 in the thread running direction.
  • the cross-wound bobbin 6 is held rotatably by means of a pivotally mounted creel 30 and lies during the winding operation with its surface on the preferably single-motor driven winding drum 29, which rotates the cross-wound bobbin 6 frictionally.
  • cross-wound bobbin could, for example, also be driven directly by means of a spindle drive and have, for example, a separate thread-changing device, wherein a so-called finger-thread guide, for example, can be used as a thread-changing device.
  • the workstation 4 further has, as usual, a pivotably mounted, underettabeetztressbare suction nozzle 31, which is received after a Spulunterbrechung an accumulated on the cheese 6 upper thread and transferred to the thread connecting device 18. Furthermore, the workstation 4 has a likewise pivotally mounted, vacuum-loadable gripper tube 32, with which, after a winding interruption, a lower thread held, for example, in the thread tensioner 16 can be picked up and likewise transferred to the thread connecting device 18.
  • FIG. 3 shows a highly schematic front view of one of the workstations 4 of a cheese winder 1, which has all the facilities necessary for carrying out the method according to the invention.
  • the creel 30 is equipped with a sensor device 35, with which the rotational speed of the rotating cross-wound bobbin 6 is constantly detected and forwarded via a signal line 38 to the workstation computer 12.
  • the drive 39 of the winding drum 29 is also equipped with a sensor device 36 which has, for example, a pole wheel 42 and an associated sensor 43.
  • the sensor device 36 also sends pulses via a signal line 40 to the workstations computer 12, which continuously determines the speed of the winding drum 29.
  • the yarn length and / or the diameter, which the cross cheeses 6 to be produced can have can be entered at the workstation computers 12 of the workstations 4 or at the central control unit 10 of the automatic winder 1.
  • a constant monitoring of both the thread length and the diameter of the cross-wound bobbin 6 takes place for quality assurance. That is, to calculate the length and diameter of a wound cheese 6 in the Spulstellenelektronik, for example, the workstation 12, continuously evaluates the pulses of the sensor devices 35, 36, from the known diameter of the winding drum 29 and the determined speed of the winding drum 29 and the determined rotational speed of the cross-wound bobbin 6 of the instantaneous diameter of the respective cross-wound bobbin 6 is determined.
  • the thread 13 passes on its way from the spinning cop 5 to the cheese 6 a thread guide, a defined controllable thread tensioner 16, a thread cleaner 20 with a thread cutting device 21 and a yarn tension sensor 22nd
  • the thread tensioner 16 acts on the running thread 13 with a predetermined by the workstation computer 12 contact pressure, while the thread cleaner 20, the current thread 13 for errors out, especially on thick or thin sites monitored. If unacceptable yarn defects occur, the running yarn 13 is separated by the yarn cutting device 21 and the defective yarn piece is cut out. The two resulting thread ends are then by means of a (in Figure 3 not shown) thread connecting device 18 again connected to each other.
  • Exceeding a limit of the deviation of the density of the present cheese over the densities of the cross coils produced on the other work stations of the cheese is regulated by means of a density correction factor, which results from the respective value of the density deviation of the present cheese, in the yarn tension control device of Job intervened. That is, during the previous winding process by means of the yarn tension sensor of the yarn tension control device of the job determined yarn tension is readjusted by a calculated density correction factor, resulting from the density deviation of the present cheese over the density of wound on the other jobs of the cheese winding cross-wound bobbins.
  • a diameter of the cross-wound bobbin 6 is determined upon reaching a predetermined thread length or detects a thread length upon reaching a predetermined diameter of the cross-wound bobbin 6. Subsequently, the determined or detected value is compared with corresponding values of cross-wound bobbins produced on other workstations of the cheese-winder.
  • a limit value of the deviation of the value of the present cross-wound bobbin from the corresponding values of the cross-wound bobbins wound or produced on the other work stations of the cross-wound bobbin is regulated by means of a correction factor, which results from a value of the deviation, intervenes in the thread tension control device of the job .
  • the yarn tension determined during the preceding winding process by means of the yarn tension sensor of the yarn tension control device of the workstation is adjusted by a calculated correction factor.
  • the thread tension control is carried out via the thread tensioner of the job. That is, the thread tensioner is each order a correction factor determined in the process, such as the density correction factor, is adjusted and influences the thread tension.
  • the correction factor is additionally stored in a voltage-proof manner in the workstations computer of the relevant workstation or in the central control unit of the cross-wound winder. In this way, it is ensured that the correction factor is also reliably maintained if a power failure should occur at the cheese winder.
  • the method is preferably used until all cheeses to be wound on the work stations of a cross-winding machine have a nearly identical density or the same optimized density.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
EP16001161.5A 2015-06-25 2016-05-20 Procede et dispositif d'optimisation de l'epaisseur de bobines croisees fabriquee sur des postes de travail d'un automate de bobines croisees Active EP3109194B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015008166.7A DE102015008166A1 (de) 2015-06-25 2015-06-25 Verfahren und Vorrichtung zum Optimieren der Dichte von auf Arbeitsstellen eines Kreuzspulautomaten hergestellten Kreuzspulen

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
DE102015008166 Previously-Filed-Application 2015-06-25

Publications (2)

Publication Number Publication Date
EP3109194A1 true EP3109194A1 (fr) 2016-12-28
EP3109194B1 EP3109194B1 (fr) 2018-04-04

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EP16001161.5A Active EP3109194B1 (fr) 2015-06-25 2016-05-20 Procede et dispositif d'optimisation de l'epaisseur de bobines croisees fabriquee sur des postes de travail d'un automate de bobines croisees

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EP (1) EP3109194B1 (fr)
JP (1) JP6732560B2 (fr)
CN (1) CN106276400B (fr)
DE (1) DE102015008166A1 (fr)

Cited By (2)

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WO2021224750A1 (fr) * 2020-05-05 2021-11-11 SSM Schärer Schweiter Mettler AG Procédé et dispositif pour peser une bobine dans un enrouleur de bobine
CN114538200A (zh) * 2022-03-25 2022-05-27 北京和利时电机技术有限公司 数码卷绕精密络筒机及其控制方法、装置和可读存储介质

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JP2019059601A (ja) * 2017-09-27 2019-04-18 村田機械株式会社 糸巻取機
JP2019137480A (ja) * 2018-02-07 2019-08-22 村田機械株式会社 糸巻取機及び糸巻取方法
DE102018112797A1 (de) * 2018-05-29 2019-12-05 Maschinenfabrik Rieter Ag Verfahren zum Ermitteln von Betriebszuständen einer Textilmaschine sowie eine Textilmaschine
DE102018007591A1 (de) * 2018-09-26 2020-03-26 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren und Vorrichtung zum Detektieren einer Fadenschlinge bei einer Arbeitsstelle einer Auflaufspulen herstellenden Textilmaschine
CN112053462B (zh) * 2020-09-01 2022-07-01 北京谛测科技有限公司 络筒机数字纱线精密定长仪断电续记方法、装置及设备
DE102020130887A1 (de) * 2020-11-23 2022-05-25 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren zur Ermittlung des Gewichts einer Kreuzspule
DE102022106747A1 (de) 2022-03-23 2023-09-28 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren und Vorrichtung zum Betreiben eines Kreuzspulautomaten, auf dessen Arbeitsstellen großvolumige Kreuzspulen gewickelt werden
DE102022121517A1 (de) 2022-08-25 2024-03-07 Maschinenfabrik Rieter Ag Verfahren zum Betreiben einer Textilmaschine

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EP3109194B1 (fr) 2018-04-04
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CN106276400A (zh) 2017-01-04
DE102015008166A1 (de) 2016-12-29
JP6732560B2 (ja) 2020-07-29

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