EP3628761A1 - Procédé de fonctionnement d'une machine à filer à anneaux - Google Patents

Procédé de fonctionnement d'une machine à filer à anneaux Download PDF

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Publication number
EP3628761A1
EP3628761A1 EP19199256.9A EP19199256A EP3628761A1 EP 3628761 A1 EP3628761 A1 EP 3628761A1 EP 19199256 A EP19199256 A EP 19199256A EP 3628761 A1 EP3628761 A1 EP 3628761A1
Authority
EP
European Patent Office
Prior art keywords
ring
spinning
status
thread
spinning machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19199256.9A
Other languages
German (de)
English (en)
Inventor
Peter Anderegg
Hanspeter KAPPELER
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.)
RIETER AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP3628761A1 publication Critical patent/EP3628761A1/fr
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/013—Carriages travelling along the machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices

Definitions

  • the invention relates to a method for operating a ring spinning machine according to the preamble of the independent claim, and a corresponding ring spinning machine.
  • Service robots or service carriages that piece threads on ring spinning machines after a thread break are well known. Mention is made here in particular of the service robot from EP 394671 A2 .
  • This service robot moves along a row of spinning stations, detects thread breaks, and then attempts to eliminate the detected thread breaks.
  • the belt driving the spindle is initially lifted from the spindle by means of a special spindle braking device, and the spindle is subsequently stopped.
  • an auxiliary thread is used.
  • One end of the auxiliary thread is fastened to a winder that is movable around the spinning cop in order to then be wound around the spinning cop.
  • the auxiliary thread is subsequently threaded through the ring traveller and the thread guide and brought into the area of the outlet of the drafting system.
  • the spindle and thus also the spinning cop are driven once again, and the auxiliary thread is brought into the path of the drawn roving so that the auxiliary thread is twisted with the drawn roving.
  • DE 3932727 discloses a method for eliminating a thread break on a ring spinning machine. It is provided that an auxiliary thread that is carried along by a service carriage is loosely placed on the cop of a spindle and pieced to a slub that is delivered by a drafting system. It is likewise known from DE 3932727 that during the operation of the service carriage, the spindle actuates a brake by means of an actuating element and/or the drive is interrupted.
  • WO 2009/132469 relates to a ring spinning machine having a single-spindle drive.
  • the workstations may contain sensors or other means for determining parameters at the workstations.
  • the current or power consumption of the spindle drive or the spindle speed may be determined by the spindle drive electronics system, optionally by use of sensors.
  • Information concerning thread breaks or thread tension may be ascertained from these measuring data.
  • the spindle in question or the drive associated with it may be autonomously shut down by the spindle drive electronics unit or the section electronics unit.
  • the spindle drive electronics system unit or section electronics system unit in question may be designed, for example, for autonomously carrying out one or more of the following functions: thread break detection, slub stopping, single-spindle drive control, thermal monitoring of the single-spindle drives, slubbing switchover, spindle speed measurement, thread tension measurement, communication with an associated automatic traveller, operator guidance of spinning stations, malfunction displays, hand switches, and/or other sensor functions.
  • a thread break and/or increased thread tension are/is preferably determinable by the particular spindle drive electronics system unit via the current or power consumption of the electric motor drive associated with the particular workstation.
  • the machine control unit itself carries out, for example, the start-up and/or process control, which may be effective, for example, for normal shut-off as well as for an emergency shut-off in the event of a power failure.
  • the object of the invention is to provide a method for operating a service carriage with which the reliability and possible applications of the service carriage may be increased.
  • the object is achieved by a method for operating a ring spinning machine having a service carriage according to the preamble of the independent method claim, in that a status of the spinning station having the thread break is determined in a module, and based on the determined status a decision is made as to whether the thread break can be eliminated by the standard program of the service carriage.
  • the service carriage advantageously does not approach the spinning station. Hence, this keeps the service carriage available for spinning stations that have thread breaks which can be eliminated by the standard program. Consequently, downtimes of spinning positions that can be restarted by the service carriage using the standard program can be reduced, as the service carriage does not work unsuccessfully at spinning stations which actually require special programs. This allows a significant reduction of total downtimes and thus an increase in production capacity as well as decrease in energy consumption. At the same time, it enables a higher number of spinning positions to be handled by one robot.
  • the service carriage may approach the spinning station and determine the status of the spinning station. In this way, unnecessary attempts to eliminate a thread break are avoided.
  • the service carriage may also approach the spinning station and determine the status of the spinning station after a first pre-assessment of the status has already been performed by a special module as described herein. For example, only a rough preliminary analysis may be carried out by a sensor (as subsequently described in more details) installed at a certain spinning position in order to detect certain types of defects that cannot be treated with the standard program.
  • the service wagon may approach the spinning position and perform a second more sophisticated analysis using one or more additional types of sensors (as described herein) in order to determine whether the thread break can be eliminated by the standard program of the service carriage.
  • This can further reduce the time required for unsuccessful runs of the standard program for elimination of thread breaks.
  • it allows to combine relatively simple and cost-efficient sensors arranged at the spinning stations with a more sophisticated sensor system arranged at the service carriage. This allows to decrease spindle downtimes and at the same time a highly reliable determination of thread breaks that can be eliminated by the standard program with relatively low costs for sensors.
  • the ring spinning machine may advantageously be informed of the determined status of the spinning station, this status may be shown on a display, and/or an operator may be called to place the spinning station back in operation.
  • an operator may e.g. be called to place a spinning station back to operation if it was determined that this can not be done by the standard program.
  • an operator may e.g. be called to place a spinning station back to operation if a high number of yarn breaks has occurred.
  • the spinning station may advantageously be monitored by a camera, a microphone, a capacitive sensor, the spindle monitor, and/or a thread and slub monitor, the result be transmitted to the module, and the status is determined in the module.
  • Alternative means for the same purpose are likewise conceivable.
  • one or multiple of these means are arranged at each spinning stations.
  • one or multiple of these means may be used to monitor multiple spinning stations.
  • a camera may be used in order to monitor multiple spinning stations.
  • the spinning station may advantageously be recorded by at least one camera, and the status of the spinning station determined by image analysis. It is possible for the spinning station to be recorded in sections by different cameras, the result transmitted to the module, and the status determined in the module. It is advantageous when the recorded status images are stored and used in the image analysis of the status of the spinning station. Thus a particualry reliable determination of yarn break that can be eliminated by the standard program becomes possible.
  • the accuracy of the status analysis during operation may be improved by presenting and demonstrating actual examples of statuses to the service carriage in a type of training. This is particularly advantageous when a ring spinning machine is converted or modified, and the conditions at the spinning stations have changed. This training may advantageously improve the quality or speed of the status analysis.
  • the module may also contain self-learning functions so that the status analysis may be adjusted for altered environmental conditions such as production speed (delivery, rotational speed), yarn color, lighting, etc.
  • the service carriage and/or the ring spinning machine may advantageously be retrofitted with the module for determining the status. Hence, retrofitting of existing machines with such a system becomes possible.
  • the object is further achieved by a ring spinning machine having a service carriage according to the preamble of the independent device claim, in that a module is present for determining the status of the spinning station, and based on the determined status ascertains whether the thread break can be eliminated by the standard program of the service carriage.
  • the module may advantageously be designed to inform the ring spinning machine of the status of the spinning station, to show the status on a display, and/or to call an operator. Hence, a particularly economical operation of the ring spinning machine becomes possible and the amount of manual surveillance by the operator can be reduced.
  • At least one camera, at least one microphone, at least one capacitive sensor, the spindle monitor, and/or at least one thread and slub monitor may advantageously be present which are/is connected to the module in order to determine the status of the spinning station.
  • These means may be interconnected with the module directly or indirectly.
  • information acquired by a camera may be processed by an image registration sytem that may be part of the module or may be separated from the module but provide information to the module.
  • a memory may advantageously be present for storing status images and comparison images that are recorded with a camera, and for using same in an image analysis of the status of the spinning station.
  • the module may advantageously determine at least one of the following statuses:
  • the service carriage and/or the ring spinning machine may advantageously be retrofitted with the module for status detection.
  • FIG 1 schematically shows a ring spinning machine 1 according to the invention which has a plurality of adjacently situated spinning stations 2.
  • the spinning stations 2 are situated in a longitudinal direction x of the ring spinning machine 1, between a head 3 1 and a foot 3 2 .
  • the head 3 1 and the foot 3 2 of the ring spinning machine 1 may contain bearings, drives, controllers, etc., necessary for operating the machine.
  • each spinning station 2 is made up of at least one roving bobbin 4 that is situated above a drafting system 5, and onto which a roving 6 is wound.
  • the roving 6 runs from the roving bobbin 4 through the drafting system 5, where it is drawn, and from there is led over a thread guide 7 and a balloon control ring 8 to a yarn forming element.
  • a ring rail 11 Situated on a ring rail 11 is a ring with a mounting 12 that bears a ring traveller 13.
  • the revolving ring traveller 13 winds the finished yarn onto a tube 10.
  • the tube 10 is mounted on a spindle 9.
  • a service carriage 14, which in the event of a thread break travels to an appropriate spinning station 1 and automatically eliminates the thread break, moves along the ring spinning machine 1.
  • the individual spinning stations 2 may be equipped with spindle monitors 15 or other sensors for monitoring the ring traveller 13 and/or the run of the thread in order to detect a thread break. Alternatively or additionally, the spinning stations 2 may be equipped with single-spindle drives.
  • FIG. 2 schematically shows a spinning station with a service carriage 14 situated in front of the spinning station.
  • the service carriage 14 includes a controller 16 and a memory 160, which may be part of the controller 16 or may be separate from same.
  • the main controller 16 via a standard program controls the operation of the service carriage 14 for automatically eliminating a thread break.
  • the service carriage 14 includes several, all, or at least one of the following function modules:
  • the standard program provides for piecing, so that the service carriage 14 searches for the thread end on the cop and guides it through the balloon control ring 8 and the thread guide 7 to the drafting system 5, where it is pieced.
  • the module 24 1 and/or a corresponding module 24 2 situated on the ring spinning machine 1 determine(s) the status of the spinning station 2 ( Figure 3 , step 200) in order to ascertain whether the thread break can be eliminated by the service carriage 14, using the stated automated program.
  • the module 24 1 and/or the module 24 2 could determine the following as possible statuses in which automatic elimination of a thread break via the above-mentioned components is difficult or impossible:
  • the status of the spinning station 2 could be determined by a camera 25, a microphone 26, a capacitive sensor 27, the spindle monitor 15, and/or a thread and slub monitor, or some other equivalent sensor.
  • the service carriage 14 or the ring spinning machine 1 includes one or more cameras 25 that record one or more images of the spinning station. It is also conceivable, as illustrated in Figure 2 , to use multiple cameras, for example a camera at the top that records the roving bobbin 4 and the drafting system 5, a camera situated in the middle for the thread guide 7 and the balloon control ring 8, and a camera at the bottom for the spindle 9, cop 10, ring 12, and ring traveller 13.
  • the recorded images are processed in the module 24 1 and/or module 24 2 for the status detection.
  • various operating states at the spinning station are then recognized.
  • a spinning station that is running without problems during piecing, or images with corresponding statuses that are to be determined, could be used as a comparison image. Many of the statuses mentioned above may be determined by image recognition.
  • the status for example of a winder on the discharge cylinder
  • the ring spinning machine 1 is equipped with a controller 50 and a memory 500, which may be part of the controller 50 or may be separate from same.
  • the ring spinning machine 1 in addition to the service carriage the ring spinning machine 1 includes the module 24 2 for status detection.
  • the sensor 26 is read out by the module 24 2 , and the sensor 26 transmits the corresponding measuring data.
  • the module 24 2 then recognizes, for example, that a winder is present on the discharge cylinder of the drafting system 5.
  • the status is determined by a microphone 27. Changes in one of the customary sounds during the spinning operation may indicate one of the above-mentioned statuses.
  • the microphone 27 is read out by the module 24 2 and transmits the corresponding measuring data. The module 24 2 then recognizes one of the statuses mentioned above.
  • the status is determined by a spindle monitor 15. It could be recognized in particular whether a ring traveller 13 is present, and whether it is soiled.
  • the status is determined by a thread and slub monitor, which could possibly recognize a stationary thread, for example.
  • the stated variants may be used and evaluated in parallel and in combination. It possible for the module 24 2 of the ring spinning machine 1 to determine ( Figure 3 , decision in step 300) that a thread break cannot be eliminated by the standard program of the service carriage 14 ( Figure 3 , step 400, left path from step 300). In this case, the service carriage 14 may omit the spinning station 2 in question, and need not approach it. If no such status of an irreparable thread break is determined, the thread break is eliminated in the specified manner ( Figure 3 , step 500, right path from step 300).
  • the service carriage 14 it is also possible for the service carriage 14 to approach the spinning station 2, and for the module 24 1 to check whether an appropriate status is present. This is possible, for example, when no such module 24 2 is present on the ring spinning machine 1. If the module 24 1 makes no finding that the thread break cannot be eliminated, the thread break is automatically eliminated by the above-mentioned components of the service carriage 14, using the stated standard program.
  • the spinning station could be displayed on the spindle monitor 15 by an LED, etc.
  • the service carriage 14 could then inform the ring spinning machine 1 about the spinning station 2 and the type and scope of the determined status.
  • the communication between the service carriage 14 and the controller of the ring spinning machine 1 is illustrated by a dashed arrow.
  • the ring spinning machine 1 updates this information in a central data information system of the spinning facility, and could possibly show it on a display 51.
  • the information may advantageously indicate which service person, or which operator/technician with specific capabilities, is needed to place the spinning station 2 back in operation.
  • Such an operator could be called via a mobile device 15 (smart watch, smart phone, tablet, etc.).
  • the mobile device 15 could be linked to the ring spinning machine 1 or the higher-order central data information system of the spinning facility via a mobile radio communications network or a local connection (NFC, WLAN, ZigBee, etc.).
  • the accuracy of the status analysis during operation may be improved by presenting and demonstrating actual examples of statuses to the service carriage. This is particularly advantageous when a ring spinning machine is converted or modified, and the conditions at the spinning stations have changed. This training may advantageously improve the quality or speed of the status analysis.
  • the module 24 1 , 24 2 may contain self-learning functions so that the status analysis may be adjusted for altered environmental conditions such as production speed (delivery, rotational speed), yarn color, lighting, etc.
  • the service carriage could carry out at least one of the following actions before eliminating the thread break:
  • a suction device and/or a gripper and/or brushes could remove a winder or a stationary thread.
  • a second service or cleaning carriage could take over the above-mentioned activities for eliminating the undesirable statuses.
  • the second service carriage cleaning carriage
  • the second service or cleaning carriage could also take over the entire function of status determination by the module 24 1 , so that the service carriage 14 always approaches spinning stations that can be pieced.
  • the service carriage 14 and/or the ring spinning machine 1 could be retrofitted with the sensors (camera, microphone, capacitive sensor, thread and slub monitor, etc.) and an additional module for determining the status, or retrofitted with the cleaning carriage.
  • Configurations are advantageously excluded in which piecing by the service carriage is not possible.
  • the reliability and possible applications of the service carriage may thus be advantageously increased.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19199256.9A 2018-09-27 2019-09-24 Procédé de fonctionnement d'une machine à filer à anneaux Pending EP3628761A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01179/18A CH715390A1 (de) 2018-09-27 2018-09-27 Verfahren zum Betreiben einer Ringspinnmaschine.

Publications (1)

Publication Number Publication Date
EP3628761A1 true EP3628761A1 (fr) 2020-04-01

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EP19199256.9A Pending EP3628761A1 (fr) 2018-09-27 2019-09-24 Procédé de fonctionnement d'une machine à filer à anneaux

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EP (1) EP3628761A1 (fr)
CN (1) CN110952181B (fr)
CH (1) CH715390A1 (fr)

Cited By (1)

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EP4169859A1 (fr) * 2021-10-19 2023-04-26 Maschinenfabrik Rieter AG Machine textile fabriquant des bobines croisées avec une pluralité de postes de travail adjacents similaires et un dispositif de commande mobile le long des postes de travail, et procédé de fonctionnement d'une telle machine textile produisant des bobines croisées

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CN111519297A (zh) * 2020-04-15 2020-08-11 邱丽遐 一种有单锭监测传感器和纱线接头装置的agv车
CH718245A1 (de) * 2021-01-06 2022-07-15 Rieter Ag Maschf Verfahren zum Ansetzen und Ansetzvorrichtung an einer Ringspinnmaschine.
CN113337928A (zh) * 2021-06-11 2021-09-03 徐州天虹时代纺织有限公司 一种超长细纱机
CN117449000B (zh) * 2023-12-25 2024-03-15 福建旭源纺织有限公司 一种细纱机纱线质量检测装置及检测系统

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EP3222761A1 (fr) 2016-03-21 2017-09-27 Premier Evolvics PVT. Ltd. Dispositif et procédé de rattache de fil suite à une cassure dans une machine à filer à anneaux
CN107475833A (zh) 2017-08-30 2017-12-15 安徽华茂纺织股份有限公司 基于图像分析技术的细纱机单锭断线检测系统及方法
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CZ201848A3 (cs) 2018-01-31 2019-07-31 Rieter Cz S.R.O. Zařízení pro manipulaci s koncem příze na spřádacím místě prstencového spřádacího stroje, způsob manipulace s koncem příze a prstencový spřádací stroj
CZ201847A3 (cs) 2018-01-31 2019-08-07 Rieter Cz S.R.O. Zařízení pro manipulaci s cívkou, způsob dopravy cívky, obslužné zařízení prstencového spřádacího stroje a prstencový spřádací stroj
CZ201849A3 (cs) 2018-01-31 2019-08-07 Rieter Cz S.R.O. Způsob polohování obslužného zařízení spřádacího stroje, zařízení k jeho provádění a spřádací stroj

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Publication number Priority date Publication date Assignee Title
US3523413A (en) * 1968-02-19 1970-08-11 Parks Cramer Co Apparatus and method for detecting and reporting ends down on textile machines
GB2022627A (en) 1978-05-03 1979-12-19 Ina Rodamientos De Agujas Sa Drawing train stop motions
DE3524073A1 (de) * 1985-07-05 1987-01-08 Zinser Textilmaschinen Gmbh Verfahren und anlage zum beheben von fadenbruechen
DE3902179A1 (de) 1989-01-25 1990-08-02 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum selbsttaetigen ausfuehren von bedienfaellen an mindestens einer ringspinn- oder -zwirnmaschine
EP0394671A2 (fr) 1989-03-23 1990-10-31 Maschinenfabrik Rieter Ag Procédé pour faire fonctionner un métier à filer et robot de manipulation pour la mise en oeuvre de ce procédé
EP0415290A1 (fr) 1989-08-30 1991-03-06 Maschinenfabrik Rieter Ag Procédé pour la commande de la vitesse de travail d'un métier à piler à anneaux
EP0419828A1 (fr) * 1989-09-29 1991-04-03 Maschinenfabrik Rieter Ag Procédé pour la marche d'un métier à filer, en particulier d'un métier à filer à anneau, et dispositif de surveillance pour sa mise en oeuvre
DE3932727A1 (de) 1989-09-30 1991-04-18 Zinser Textilmaschinen Gmbh Verfahren zum beheben eines fadenbruches an einer ringspinnmaschine
US5140805A (en) 1990-02-14 1992-08-25 Zignago Tessile Spa Device to check the presence of threads on spinning machines
DE4312026A1 (de) * 1992-04-16 1993-10-21 Rieter Ag Maschf Verfahren und Vorrichtung zum Betrieb einer Spinnmaschine mit mehreren Spinnstellen
EP1712664A2 (fr) * 2005-04-14 2006-10-18 Kabushiki Kaisha Toyoda Jidoshokki Procédé de contrôle pour des métiers à filer
WO2009132469A1 (fr) 2008-04-30 2009-11-05 Maschinenfabrik Rieter Ag Métier à filer à entraînement individuel des broches
EP3222761A1 (fr) 2016-03-21 2017-09-27 Premier Evolvics PVT. Ltd. Dispositif et procédé de rattache de fil suite à une cassure dans une machine à filer à anneaux
WO2018100464A1 (fr) 2016-11-30 2018-06-07 Maschinenfabrik Rieter Ag Procédé de détection de l'extrémité d'un fil sur une bobine dans une machine textile produisant ou traitant un fil et dispositif pour la mise en œuvre du procédé
CN107475833A (zh) 2017-08-30 2017-12-15 安徽华茂纺织股份有限公司 基于图像分析技术的细纱机单锭断线检测系统及方法
CZ201834A3 (cs) 2018-01-24 2019-07-31 Rieter Cz S.R.O. Způsob navlečení konce příze do běžce na prstenci s korunkou na spřádacím místě prstencového spřádacího stroje a zařízení k jeho provádění
CZ201848A3 (cs) 2018-01-31 2019-07-31 Rieter Cz S.R.O. Zařízení pro manipulaci s koncem příze na spřádacím místě prstencového spřádacího stroje, způsob manipulace s koncem příze a prstencový spřádací stroj
CZ201847A3 (cs) 2018-01-31 2019-08-07 Rieter Cz S.R.O. Zařízení pro manipulaci s cívkou, způsob dopravy cívky, obslužné zařízení prstencového spřádacího stroje a prstencový spřádací stroj
CZ201849A3 (cs) 2018-01-31 2019-08-07 Rieter Cz S.R.O. Způsob polohování obslužného zařízení spřádacího stroje, zařízení k jeho provádění a spřádací stroj

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4169859A1 (fr) * 2021-10-19 2023-04-26 Maschinenfabrik Rieter AG Machine textile fabriquant des bobines croisées avec une pluralité de postes de travail adjacents similaires et un dispositif de commande mobile le long des postes de travail, et procédé de fonctionnement d'une telle machine textile produisant des bobines croisées

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