EP2990368A1 - Procede destiné au fonctionnement d'un poste de travail d'une machine textile fabricant des bobines croisées et poste de travail associé - Google Patents

Procede destiné au fonctionnement d'un poste de travail d'une machine textile fabricant des bobines croisées et poste de travail associé Download PDF

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Publication number
EP2990368A1
EP2990368A1 EP15002296.0A EP15002296A EP2990368A1 EP 2990368 A1 EP2990368 A1 EP 2990368A1 EP 15002296 A EP15002296 A EP 15002296A EP 2990368 A1 EP2990368 A1 EP 2990368A1
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EP
European Patent Office
Prior art keywords
suction nozzle
yarn
winding
cross
sensor
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.)
Withdrawn
Application number
EP15002296.0A
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German (de)
English (en)
Inventor
Michael Iding
Manfred Mund
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
Original Assignee
Saurer Germany GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saurer Germany GmbH and Co KG filed Critical Saurer Germany GmbH and Co KG
Publication of EP2990368A1 publication Critical patent/EP2990368A1/fr
Withdrawn legal-status Critical Current

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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
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • 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 for operating a workstation of a textile machine producing cross-wound bobbins, wherein the workstation is equipped with a winding device for winding a cross-wound bobbin and a single-motor driven suction nozzle, which is positioned in a yarn end receiving position for receiving a thread accumulated on the surface of the cross-wound bobbin after a winding interruption is, in which the mouth of the suction nozzle has a predetermined distance from the surface of the cheese.
  • the suction nozzle is pivoted starting from a sensory detected starting position by means of their individual drive and stopped after detecting a previously determined number of increments of the individual drive in the yarn end receiving position.
  • the invention relates to jobs of a cross-wound producing textile machine for carrying out the method according to the invention.
  • the displaceable between two end positions suction nozzle is, acted upon by a tension spring, on a cam of a so-called cam disk, which in turn is connected to a central drive of the relevant job.
  • the suction nozzle can be pivoted by appropriately driving the workstation drive and the associated rotation of the cam disk pack in a yarn end receiving position in which the mouth of the suction nozzle is positioned in the region of the surface of a cheeses Erten in a creel. In this yarn end receiving position, the suction nozzle abuts against a so-called suction nozzle stop, via which an optimum distance of the mouth of the suction nozzle to the surface of the cross-wound bobbin rotating in the unwinding direction during yarn take-up can be set.
  • the suction nozzle stop by means of a lever linkage, which is connected to the coil frame, automatically, that is , Spool diameter-dependent tracked.
  • the gripper tube, the suction nozzle and the yarn splicing device are each driven by a single motor.
  • the associated drives are each connected via electronic devices to a workstation control, which ensures a needs-based operation of the facilities.
  • the EP 0 717 001 B1 there is no information as to how it can be ensured, for example, in the final yarn take-up that the mouth of the suction nozzle is always positioned at a predeterminable, optimal distance from the surface of a cross-wound cheese rotating in the unwinding direction.
  • a method for operating a job of a cross-wound producing textile machine in which a single motor driven suction nozzle for receiving a accumulated after a yarn breakage or a controlled cleaner cut on the surface of a cross-wound yarn each exactly in a predetermined yarn end receiving position.
  • the suction nozzle is pivoted during pivoting, starting from a sensory detectable fixed position, by its drive, each of which executes a predetermined number of switching steps in a yarn end receiving position in which the mouth of the suction nozzle to the surface of the cheese has a precisely defined, optimal distance ,
  • the number of steps of the suction nozzle drive which is preferably designed as a stepping motor, is adapted in the course of a coil travel and takes into account any change in position of the surface of the cheese due to the diameter increase. This means that the mouth of the suction nozzle is positioned in different thread end receiving positions, depending on the particular diameter of the cross-wound bobbin.
  • the invention is based on the above-mentioned prior art, the task to develop a method or a job for performing the method by / can be ensured in a relatively simple manner that in the Fadenending a alsauf the surface of a cross-wound yarn accumulated thread the mouth of responsible for the Fadenending suction nozzle is always positioned exactly in a predeterminable Fadenendamgna.
  • This object is achieved by a method in which a calibration of the pivoting of the suction nozzle takes place in that carried out after a winding interruption first a yarn connection circuit, the thread set in a thread tensioner and tensioned by means acted upon in the winding direction cheese. Subsequently, the suction nozzle is pivoted by means of its individual drive from a predetermined by a zero position sensor starting position in a control position in which contacted the suction head of the suction nozzle, the tensioned yarn, the system of the suction head is detected on the tensioned yarn by means of a yarn tension sensor.
  • the number of increments is determined, which are overflowed when the suction nozzle pivots from the sensory detected initial position to the control position in which the suction head of the suction nozzle is in contact with the tensioned thread.
  • the determined number of increments is then compared with an applicable as a guide number of previously determined in the same way increments and created on the basis of this comparison, a correction variable, which is taken into account in the subsequent positioning of the suction nozzle in the yarn end receiving position.
  • the method according to the invention has the particular advantage that with this method a decreasing thread take-up quota can be prevented due to mechanical adjustments between the suction nozzle drive and the suction nozzle head. That is, with this method can be prevented in good time that it comes in the course of Fadenender terminatesvorrud a job to an unwanted change in the distance of the suction nozzle mouth to the coil surface.
  • the method according to the invention also prevents the suction nozzle must be created in the course of the calibration process to a fixed reference point, which often not only in connection with a stepper motor used as a drive, but also in connection with the overall relatively sensitive construction of the suction nozzle is not completely unproblematic. That is, when starting the suction nozzle to a fixed reference point, there is often the risk that there will be unnoticed adjustments in the area of the suction nozzle construction or in the area of the drive, which have a very disadvantageous effect on the calibration process.
  • the number of increments is determined by an increment counter, which overflows the suction nozzle when pivoting in the control position between the edge of the zero position sensor and a signal of the yarn tension sensor.
  • the swivel angle can be determined very quickly and accurately, which has covered the suction nozzle until reaching its control position. That is, in case of deviations of the determined number of increments of a predetermined value, for example, at the installation position of the suction nozzle, corrections can be made immediately.
  • the suction nozzle is pivoted by means of its single drive several times in succession from the sensory detected initial position in the control position, in which the suction nozzle orifice is positioned in contact with the tensioned thread.
  • a calibration of the pivoting of the suction nozzle is automatically initiated within certain cycles, with respect to the nature of the cycles can find different ways to apply.
  • a first possibility for example, is that after a predefinable number of Fadenendage bathen the suction nozzle is automatically carried out a calibration of the pivoting of the suction nozzle.
  • a calibration of the pivoting path of the suction nozzle always takes place at predeterminable time intervals.
  • a calibration of the pivoting path of the suction nozzle takes place only as needed.
  • a calibration process according to the invention will first be carried out in order to rule out in this way that the cause of the decreasing thread take-up rate lies in an adjustment of the suction nozzle. Only if the thread capture rate is still unsatisfactory even after calibration, the workstation in question should be checked for any other possible causes, such as negative pressure fluctuations, coil build-up, different waxing, changed thread tension, etc., which could also be considered for a decreasing thread capture rate ,
  • the increments overflowed by the suction nozzle during its pivoting movement are determined by means of an increment counter, which is arranged stationarily in the region of the drive device of the suction nozzle.
  • an increment counter which is arranged stationarily in the region of the drive device of the suction nozzle.
  • the workstation of the cheese-producing textile machine with which the method according to the invention can be carried out is equipped with a winding device for winding a cross-wound bobbin, a single-motor driven suction nozzle for picking up a thread that has accumulated on the surface of the cross-wound bobbin after a winding interruption, and also has via a control device, for example a workstation computer, to which a zero position sensor, an increment counter and a yarn tensile force sensor are connected.
  • a control device for example a workstation computer, to which a zero position sensor, an increment counter and a yarn tensile force sensor are connected.
  • the zero position sensor predetermines the starting position of the suction nozzle, while the yarn tensile force sensor detects when the suction nozzle, which can be acted upon by a single drive, touches a yarn tensioned between a yarn tensioner and a bobbin drive roller with its suction head.
  • the stationary increment counter in conjunction with increments which are arranged on a sensor element which pivots with the suction nozzle, makes possible a very exact detection of the pivoting path of the suction nozzle.
  • the workstation has a single drive designed as a stepper motor.
  • the stepper motor is equipped with a device for automatic detection of the switching steps. That is, the stepper motor and the workstation controller, such as the workstation computer, are configured to monitor and determine the step count performed by the stepper motor in both directions of rotation of the stepper motor.
  • FIG. 1 is a job 2 of a cheese-producing textile machine, in the embodiment of a cheese package 1, shown.
  • Such automatic packages 1 usually have a plurality of such similar jobs 2 between their end frames, not shown.
  • jobs 2 spinning cops 3 which were usually previously produced on ring spinning machines and have relatively little gamma material, rewound to large-volume cheeses 5.
  • Such spooling machines 1 are often equipped with a logistics device in the form of a Spinnkops- and sleeve transport system 6, in which circulate on Transporttellem 11, the spinning cops 3 and the unwound empty tubes. From this spinning cop and sleeve transport system 6 are in Fig.1 only the Spinnkopszu slaughter slaughter station 17, the reversibly driven storage section 18, one of the a job 2 leading transverse transport lines 19 and the sleeve return path 20 shown. The delivered spinning cops 3 are each wrapped in Abspul einen AS, which are located in the region of the transverse transport lines 19, to large-volume cheeses 5.
  • the individual jobs 2 have for this purpose, as known per se and therefore only partially indicated schematically, via various facilities that allow proper operation of the jobs 2.
  • These devices are, as usual, in each case via control or signal lines to a workstation's own control device, a so-called workstation computer 31, connected, which in turn is connected via a machine bus 33 to a central control unit 32 of the automatic package 1.
  • the work stations 2 of such automatic packages 1 are generally also equipped with a winding device 4, a yarn splicing device 26, a thread tensioner 30, a thread cutting device 27, a thread cleaner 28, a yarn tension sensor 29 and a lower thread sensor 22.
  • the winding device 4 in turn has a creel 8 which is movably mounted about a pivot axis 12 and coil frame arms with so-called (not shown) rotatable Hülsentexttellem, between which the bobbin of a cross-wound bobbin 5 is securely fixed.
  • the freely rotatably supported in the creel 8 cheese 5 is located during the winding process with its surface 35 on a bobbin drive roller 9 and is taken from this by means of frictional engagement.
  • a frictionally engaging coil drive roller 9 instead of such a frictionally engaging coil drive roller 9, another coil drive form may also be realized.
  • the cheese 5 could for example also have a direct drive.
  • a drive would be installed in the area of the coil axis, which rotates the cross-wound bobbin.
  • the thread 16 running from the spinning head 3 to the cheese 5 during the winding process is also traversed by a thread-changing device 10, which has, for example, a finger-like yarn guide 13 acted upon by an electromotive single drive 14, between the two end faces of the cheese 5 .
  • a thread-changing device 10 which has, for example, a finger-like yarn guide 13 acted upon by an electromotive single drive 14, between the two end faces of the cheese 5 .
  • Fadenchangier spur 10 have long been known in the textile machinery industry and, for example in the DE 198 58 548 A1 described in detail.
  • a cross-coil transport device 7 is also arranged, via which the cheeses 5 are conveyed away after their completion.
  • each of the work stations 2 furthermore has a pivotably mounted suction nozzle 24 as well as a gripper tube 25 likewise pivotally mounted.
  • the individual drive 15 can be designed, for example, as an EK motor or as a stepping motor.
  • the suction nozzle 24 also has a thread sensor 41, by which it is verifiable whether a Fadenendamella tilt the suction nozzle 24 was successful.
  • the suction nozzle 24 is usually in a sensory monitored initial position I. After a Spulunterbrechung the suction nozzle 24, for receiving a accumulated on the surface 35 of the cheese 5 end of the thread, along a Schwenkweg 21 in the in Fig.1 shown Fadenending sued II pivoted.
  • the suction nozzle 24 can be pivoted to calibrate their pivoting in a control position III, which later, in particular with reference to FIG. 3 will be explained in more detail.
  • the individual drive 15 of the suction nozzle 24 is designed as an EK motor, sensor devices are necessary for the exact positioning of the suction nozzle 24 in its various operating positions. That is, in the region of the drive device of the suction nozzle 24, two stationary sensor devices 40, 44 and a pivotally mounted sensor device 43 are arranged. According to the present embodiment, a so-called incremental counter 40 and a so-called zero position sensor 44 are used as stationary sensor elements.
  • the two stationary sensor devices 40, 44 correspond to a sensor element 43, which has a multiplicity of increments 45 and is fixed to the suction nozzle 24 in such a way that it pivots together with the latter when pivoting the suction nozzle 24.
  • both the starting position I and the Fadenendamgnall II of the suction nozzle 24 can be reliably determined if necessary.
  • the control position III of the suction nozzle 24 further signal ii of a yarn tension sensor 29 is necessary, which is when the suction nozzle 24 with its suction head tangent between a yarn tensioner 30 and the applied in the winding direction cheese 5 tangent 16.
  • the suction nozzle 24 can be pivoted if necessary by means of a single drive 15 from a starting position I into a yarn end receiving position II, in which the mouth of the suction nozzle 24 in a defined, optimal distance a, for example, 5 mm, is spaced from the surface 35 of the cheese 5, which rotates in the unwinding 37 at this time.
  • suction nozzles 24 which receive the yarn end of a so-called upper thread accumulated on the surface 35 of a cross-wound bobbin 5 after a winding interruption and transfer it to a yarn splicing device 26, there is the danger, for example, that the distance a, which is the distance between the orifice, at the yarn end receiving test defines the suction nozzle 24 and the surface 35 of the cheese 5, something changes, which usually leads to increased false attempts at Fadenendage.
  • a cross-wound bobbin 5 is created, for example, has a diameter which is between 130 mm and 150 mm. This cross-wound bobbin 5 is used as adjusting coil and inserted into the creel.
  • the suction nozzle 24 by means of its individual drive 15 from its sensorially predetermined starting position I, in which for example a pivotally mounted with the suction nozzle 24 sensor element 43 applied to a zero position sensor 44, pivoted upward, wherein the suction head of the suction nozzle 24 passes through the pivoting path 21 and preferably is positioned using a mechanical spacer (not shown) so that the mouth of the suction nozzle 24, as shown in FIG Fig.1 has an optimal distance for the thread detection a to the surface 35 of the adjusting coil or another cross-wound bobbin 5.
  • the number of increments 45 which overflows the suction nozzle 24, is determined by means of an increment counter 40 and the sensor element 43 marked with increments 45, when the suction nozzle 24 pivots out of the initial position I predetermined by the zero position sensor 44 into the yarn end receiving position II.
  • the number of ascertained increments 45 then applies to the operating point as a guide value, which is stored in the control device of the workstation 2, preferably in the workstations computer 31.
  • control position III is reached when the suction head of the suction nozzle 24 tangent between the thread tensioner 30 and the applied in the winding direction cheese 5 tangent thread 16, resulting in an immediate increase in the thread tension of the thread 16, which is detected immediately by the yarn tension sensor 29.
  • the yarn tension force sensor 29 then sends a corresponding yarn tension signal ii to the workstation computer 31 via a signal line 46, which immediately stops the drive 15 of the suction nozzle 24.
  • the increments 45 arranged on the sensor element 43 are also scanned by the increment counter 40.
  • control value represents the calibration setpoint, which is preferably also stored in the workstation computer 31.
  • a sinking detection rate can also have other causes than a faulty thread end receiving position of the suction nozzle, for example vacuum fluctuations, coil construction, thread tension etc.
  • a sinking detection rate can also have other causes than a faulty thread end receiving position of the suction nozzle, for example vacuum fluctuations, coil construction, thread tension etc.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Looms (AREA)
EP15002296.0A 2014-08-26 2015-08-01 Procede destiné au fonctionnement d'un poste de travail d'une machine textile fabricant des bobines croisées et poste de travail associé Withdrawn EP2990368A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014012730.3A DE102014012730A1 (de) 2014-08-26 2014-08-26 Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine bzw. zugehörige Arbeitsstelle

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DE102014012730 Previously-Filed-Application 2014-08-26

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EP2990368A1 true EP2990368A1 (fr) 2016-03-02

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EP (1) EP2990368A1 (fr)
JP (1) JP2016044079A (fr)
CN (1) CN105383995A (fr)
DE (1) DE102014012730A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107541823A (zh) * 2016-06-28 2018-01-05 立达英格尔施塔特有限公司 用来运行纺织机器的工位的方法
US20190218688A1 (en) * 2018-01-16 2019-07-18 Maschinenfabrik Rieter Ag Method for automatically piecing a thread at a workstation of a textile machine, and textile machine
CN110540109A (zh) * 2018-05-29 2019-12-06 里特机械公司 操作纺织机的方法及纺织机

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Publication number Priority date Publication date Assignee Title
JP2018052638A (ja) * 2016-09-26 2018-04-05 村田機械株式会社 繊維機械
CN108861865B (zh) * 2017-05-16 2021-07-09 欧瑞康纺织有限及两合公司 一种卷绕装置中用于辅助卷筒更换的辅助装置
CN113319860B (zh) * 2021-04-20 2023-05-30 意欧斯物流科技(上海)有限公司 自动落筒机器人的二次位置控制方法
CN113265749B (zh) * 2021-07-21 2021-09-10 江苏红金顶织造有限公司 一种纺织用便于进行纺织线定位装置

Citations (5)

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Publication number Priority date Publication date Assignee Title
EP0717001B1 (fr) 1994-12-15 1998-12-09 SAVIO MACCHINE TESSILI S.p.A. Procédé et dispositif pour la réalisation d'un cycle de bobinage flexible et à modulation
DE19858548A1 (de) 1998-12-18 2000-06-21 Schlafhorst & Co W Fadenführer zum traversierenden Zuführen eines Fadens zu einer rotierend angetriebenen Auflaufspule
DE10150590A1 (de) 2001-10-12 2003-04-24 Schlafhorst & Co W Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
DE102006026548A1 (de) 2006-06-08 2007-12-13 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitstelle einer Kreutzspulen herstellenden Textilmaschine
EP2671830A2 (fr) * 2012-06-07 2013-12-11 Murata Machinery, Ltd. Machine textile, procédé permettant de déterminer la position d'attente d'élément entraîné d'unité d'enroulement et unité d'enroulement

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ITMI20050629A1 (it) * 2005-04-13 2006-10-14 Savio Macchine Tessili Spa Dispositivo e procedimento per la manipolazione e il controllo del filo in una testa di roccatura di una macchina roccatrice nelle operazioni di levata di una rocca
DE202007011864U1 (de) * 2007-08-25 2007-10-25 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Betreiben der Arbeitsstellen von Kreuzspulen herstellenden Textilmaschinen
IT1396438B1 (it) * 2009-11-16 2012-11-23 Savio Macchine Tessili Spa Sistema di aspirazione individuale per unita' di roccatura.
DE102013004053A1 (de) * 2013-03-08 2014-09-11 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine bzw. zugehörige Arbeitsstelle
CN103590155B (zh) * 2013-11-07 2015-12-30 杭州永翔纺织有限公司 一种涡流纺麻灰环保纱的制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0717001B1 (fr) 1994-12-15 1998-12-09 SAVIO MACCHINE TESSILI S.p.A. Procédé et dispositif pour la réalisation d'un cycle de bobinage flexible et à modulation
DE19858548A1 (de) 1998-12-18 2000-06-21 Schlafhorst & Co W Fadenführer zum traversierenden Zuführen eines Fadens zu einer rotierend angetriebenen Auflaufspule
DE10150590A1 (de) 2001-10-12 2003-04-24 Schlafhorst & Co W Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
DE102006026548A1 (de) 2006-06-08 2007-12-13 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitstelle einer Kreutzspulen herstellenden Textilmaschine
EP2671830A2 (fr) * 2012-06-07 2013-12-11 Murata Machinery, Ltd. Machine textile, procédé permettant de déterminer la position d'attente d'élément entraîné d'unité d'enroulement et unité d'enroulement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107541823A (zh) * 2016-06-28 2018-01-05 立达英格尔施塔特有限公司 用来运行纺织机器的工位的方法
US20190218688A1 (en) * 2018-01-16 2019-07-18 Maschinenfabrik Rieter Ag Method for automatically piecing a thread at a workstation of a textile machine, and textile machine
US10907278B2 (en) * 2018-01-16 2021-02-02 Maschinenfabrik Rieter Ag Method for automatically piecing a thread at a workstation of a textile machine, and textile machine
CN110540109A (zh) * 2018-05-29 2019-12-06 里特机械公司 操作纺织机的方法及纺织机

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CN105383995A (zh) 2016-03-09
DE102014012730A1 (de) 2016-03-03
JP2016044079A (ja) 2016-04-04

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