EP3626871A1 - Chariot de service et procédé d'alimentation automatique des postes de filage d'un métier à filer - Google Patents

Chariot de service et procédé d'alimentation automatique des postes de filage d'un métier à filer Download PDF

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Publication number
EP3626871A1
EP3626871A1 EP19198179.4A EP19198179A EP3626871A1 EP 3626871 A1 EP3626871 A1 EP 3626871A1 EP 19198179 A EP19198179 A EP 19198179A EP 3626871 A1 EP3626871 A1 EP 3626871A1
Authority
EP
European Patent Office
Prior art keywords
auxiliary thread
spool
sensor
auxiliary
spinning
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Withdrawn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
EP19198179.4A
Other languages
German (de)
English (en)
Inventor
Dr. Tai Mac
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 Spinning Solutions 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 Spinning Solutions GmbH and Co KG filed Critical Saurer Spinning Solutions GmbH and Co KG
Publication of EP3626871A1 publication Critical patent/EP3626871A1/fr
Withdrawn legal-status Critical Current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
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor
    • 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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/145—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements set on carriages travelling along the machines; Warning or safety devices pulled along the working unit by a band or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor
    • D01H4/50—Piecing arrangements; Control therefor for rotor spinning

Definitions

  • the invention relates to a service trolley for automatically supplying spinning positions of a spinning machine for producing thread spools, comprising an auxiliary thread spool with an auxiliary thread for spinning after changing the thread spool, and an auxiliary thread guide for feeding the auxiliary thread to the spinning position of the spinning machine.
  • the invention further relates to a method for operating a service trolley which independently supplies a plurality of spinning positions of a spinning machine for producing thread spools.
  • Service trolleys of the type mentioned at the outset are known in a variety of configurations from the prior art. So the reveals DE 199 39 801 A1 a service unit for the automatic supply of the spinning positions of an open-end rotor spinning machine.
  • the service unit has devices for spinning a thread end onto a fiber ring rotating with a spinning rotor, a thread take-off device, a thread transfer device and a device for monitoring the thread transfer.
  • a sensor device which is preferably designed as a light sensor, is arranged in the area of the thread feeder in such a way that a signal is generated by the sensor device when the thread feeder is first in the thread transfer position and secondly the thread to be transferred to the changing thread guide of the spinning station has sufficient thread tension having.
  • the service trolley of a spinning machine is intended, inter alia, to insert a new sleeve into the spool frame of one of many spinning positions of the spinning machine after a full spool has been placed on a spool removal belt. Since the new empty tube does not yet have a thread, it is spun on with the auxiliary thread from the auxiliary thread spool of the service trolley. If the auxiliary thread spool is empty, a piecing process cannot be carried out. The corresponding spinning station remains unproductive until an operator has placed a new, full auxiliary thread spool in the service trolley.
  • the service trolley according to the invention for automatically supplying spinning positions of a spinning machine for producing thread spools has an auxiliary thread spool with an auxiliary thread for spinning after changing the thread spool and an auxiliary thread guide for feeding the auxiliary thread to the spinning position of the spinning machine or to the newly presented empty tube, at least one of which Sensor for detecting the state of the auxiliary thread spool is arranged on the service carriage in order to be able to distinguish between the states of an empty auxiliary thread spool and an auxiliary thread spool having auxiliary threads.
  • the state of an auxiliary thread spool of the service trolley is first automatically detected by means of a sensor and subsequently a warning signal is generated and transmitted when the sensor detects an empty or idling auxiliary thread spool.
  • the inventors have recognized that there was no possibility for the operator in the service trolleys of the prior art to recognize whether the auxiliary thread spool was soon running empty or even already empty. The operator therefore had to run regularly to the service trolley to check this, although in spinning machines with a large number of spinning positions, the service trolley can currently be in a distant position and therefore takes a longer period of time. If the empty auxiliary thread spool was not replaced in time by a new auxiliary thread spool, all spinning stations that have changed the spool have not been able to be spun again since then, so that the number of spinning stations in operation on the spinning machine is steadily decreasing.
  • the inventors have also recognized that it is advantageous to inform the operator of the spinning machine in good time when or in which service car there is an empty or empty auxiliary bobbin.
  • the service trolley according to the invention and the method according to the invention therefore make it possible, in a particularly advantageous manner, to quickly and easily recognize when the auxiliary thread spool on a service trolley has to be changed, so that long interruptions in operation can be prevented.
  • the spinning machine can initially be any spinning machine for the production of threads, yarns or twists.
  • the spinning machine is preferably an air spinning machine or a rotor spinning machine, particularly preferably an open-end rotor spinning machine.
  • the spinning machine has a plurality of spinning stations for producing a thread, which are particularly preferably formed as spinning boxes and very particularly preferably each have a rotor.
  • the thread produced by each of the spinning stations is wound in the spinning station or immediately adjacent to the spinning machine onto a sleeve or a bobbin. Basically, this can be any bobbin, but it is preferred that the spinning machine generates cross-wound bobbins.
  • the service trolley is provided to supply the individual spinning positions, which are preferably identical to one another.
  • the respective spinning station preferably requests the service car via a data telegram.
  • the service trolley is positioned in front of the spinning station and requests, for example, a new empty tube to replace the spool.
  • the finished bobbin in particular a cross-wound bobbin, can then be placed on the bobbin removal belt and the service trolley preferably places the new sleeve in the bobbin frame of the spinning station.
  • the piecing is done with the help thread of the service car.
  • the auxiliary thread is suctioned off and the thread reserve is wound with the freshly spun thread or yarn, before the normal winding process begins and the spinning station can take control of the thread.
  • the service trolley automatically supplies the numerous spinning positions of the spinning machine, in particular an open-end rotor spinning machine, that is, the service trolley intervenes without a request or instruction from operating personnel if the service trolley is required at one of the spinning positions. This is the case, for example, if a thread break has occurred at one of the spinning positions or if a cross-wound bobbin has reached its prescribed diameter at one of the spinning positions and has to be exchanged for an empty tube.
  • the service car can basically be designed in any way and have any functions.
  • the service trolley is preferably an interchangeable cleaning trolley and / or a piecing trolley.
  • the service trolley preferably has devices that ensure that the package that was taken from the cheese is properly spun on Allow thread end or an auxiliary thread.
  • the service trolley can, for example, also have devices for spinning a thread end onto a fiber ring rotating with a spinning rotor, a thread take-off device, a thread transfer device and / or a device for monitoring the thread transfer.
  • the auxiliary thread spool of the service trolley can basically be any spool that can provide an auxiliary thread.
  • the auxiliary thread guide is provided for safely guiding the auxiliary thread unwound from the auxiliary thread spool to the position of the service trolley at which a spinning station of the spinning machine is prepared for spinning a thread onto a new sleeve or another thread spool by means of the service trolley.
  • the auxiliary thread guide can be designed in any way, wherein the auxiliary thread can be guided mechanically and / or pneumatically.
  • the auxiliary thread is preferably deflected mechanically, for example on a roll. A linear and / or curved guidance of the auxiliary thread is carried out alternatively or additionally preferably by means of an air flow.
  • the at least one sensor can be any sensor by means of which a direct detection of the condition of the auxiliary thread spool, in particular directly on the auxiliary thread spool, and / or an indirect detection of the condition of the auxiliary thread spool, in particular in the area of the thread guide, is possible.
  • the sensor can basically detect the auxiliary thread purely mechanically or else have electrical and / or optical and / or acoustic components for detecting the auxiliary thread.
  • the sensor preferably has at least one unit for the electronic detection and transmission of a signal.
  • the sensor particularly preferably detects the state of the auxiliary thread spool without contact, so that there can be no disruptive interaction of the sensor with the rotating auxiliary thread spool or the transported auxiliary thread.
  • the service car it is possible for the service car to have one or more sensors, it being preferred for a plurality of sensors, in particular a number of different sensors, to be arranged on the service car.
  • several sensors are very particularly preferably arranged in the region of an auxiliary thread spool and / or the auxiliary thread guide of this auxiliary thread spool.
  • the state of the auxiliary thread spool is understood to mean any parameter of the auxiliary thread spool, by means of which it can at least be determined whether auxiliary thread is still on the auxiliary thread spool.
  • the condition can relate to the auxiliary thread itself and / or the quantity of auxiliary thread located on the auxiliary thread spool, but also to another size or property be related to the auxiliary thread spool, by means of which it is possible to distinguish at least between an empty and an non-empty auxiliary thread spool.
  • the weight and / or the rotational speed or generally a movement of the auxiliary thread spool can also be detected by means of the sensor, since an empty sleeve of an auxiliary thread spool no longer rotates when auxiliary thread is requested when it is driven or rotated by the auxiliary thread being unwound .
  • the condition of the auxiliary thread spool only has to allow a qualitative statement as to whether the auxiliary thread spool is empty or whether auxiliary thread is still on the auxiliary thread spool.
  • the state of the auxiliary thread spool is preferably detected in such a way that at least one further state can be determined in which there is only a predetermined, small remaining amount of the auxiliary thread on the auxiliary thread spool.
  • the state is particularly preferably determined in such a way that a qualitative statement can be made at each time of operation about the amount of the auxiliary thread present on the auxiliary thread bobbin.
  • Automatic detection of the state of the auxiliary thread bobbin by means of the sensor means that the individual measurements by means of the sensor do not have to be triggered by an operator in each case, but that the automatic detection takes place continuously or periodically.
  • the condition of the auxiliary thread spool is only detected when and / or after the auxiliary thread has been used, since the amount of the auxiliary thread still present does not change in the case of a service car which is currently unused.
  • a warning signal is generated and forwarded, this being possible in the sensor, a data processing device connected to it, or in a control device of the service car or the spinning machine.
  • a sensor is directed onto a surface of the thread wound on the auxiliary thread spool in order to be able to directly and directly detect the fill level of the auxiliary thread spool.
  • the sensor is preferably a distance sensor, in particular a laser light distance sensor, which is particularly preferably directed perpendicular to a central longitudinal axis or a rotation axis of the auxiliary thread spool onto a surface of the thread wound on the auxiliary thread spool.
  • the senor can not only check the qualitative states of an empty auxiliary thread spool from an auxiliary thread differing auxiliary thread spool, but also enables quantitative statements about the level, so that the drop below a minimum remaining amount of the auxiliary thread on the auxiliary thread spool can be detected.
  • the sensor can be any other distance sensor, for example an ultrasonic distance sensor.
  • identical or different sensors for detecting the state of the auxiliary thread spool can also be arranged on the service trolley.
  • the or one of the sensors is a light barrier, which is preferably arranged parallel to and / or spaced apart from a central longitudinal axis or a rotation axis of the auxiliary thread bobbin in such a way that the light barrier is closed when the minimum remaining quantity of the auxiliary thread is undershot , whereby it can be detected in a particularly simple manner not only that the auxiliary thread spool is empty, but also that the auxiliary thread spool has fallen below a minimum amount of auxiliary thread and should therefore be changed promptly in order to completely prevent the spinning machine from being interrupted.
  • a light barrier is generally understood to mean a sensor arrangement in which a first sensor part emits a signal, preferably an optical signal, which can be received by a second sensor unit arranged opposite the first sensor unit. If there is no object in the area between the two sensor units, the light barrier is closed. If it is otherwise interrupted by an object, it is open.
  • the auxiliary thread spool is preferably arranged within the light barrier or between the two sensor parts of the light barrier in such a way that the thread keeps the light barrier open when the auxiliary thread spool is full and only determines this when the distance from the light barrier to the central longitudinal axis or the surface of the empty auxiliary thread spool is determined Minimum residual amount of the auxiliary thread is closed.
  • a preferred embodiment of the service trolley according to the invention provides that the sensor or one of the sensors is a thread monitor, which is particularly preferably arranged downstream of the auxiliary thread spool and / or in the region of the auxiliary thread guide on the auxiliary thread, as a result of which it can be determined in a particularly simple manner whether of the auxiliary thread spool is provided auxiliary thread.
  • a thread monitor is basically a device which is traversed at least in sections by the thread to be monitored and which preferably detects the thread optically or mechanically. The thread monitor can basically between distinguish between empty and not empty auxiliary thread spool.
  • At least one sensor are connected to a control device of the service vehicle, the control device particularly preferably having an interface for forwarding a data or alarm signal to at least one terminal.
  • the forwarding can take place directly from the control device to the terminal or via several stations, for example via a telephone exchange, a signaling device or lamp, a control system or a control center, a communication center or the like.
  • the signal can also be forwarded in any manner, for example in a wired or wireless manner. It is also possible for some of the forwarding or the forwarding to multiple stations to take place in succession or at the same time electrically or by means of a cable, while another part, in particular to a terminal, is carried out wirelessly.
  • the terminal can basically be any technical device that is suitable for displaying a signal for an operator of the textile machine, for example a lamp, an informator, an information screen, a smart watch, a telephone, in particular a smartphone, a tablet, a portable computer and / or other portable electronic device.
  • the terminal also allows the operating personnel to report back to the control of the service trolley and / or the spinning machine and / or to another person, for example in a communication or telephone exchange or a central operating control or monitoring.
  • a preferred embodiment of the method according to the invention provides that a quantitative monitoring of the fill level of the auxiliary thread bobbin takes place or is possible and that the warning signal is generated if the minimum residual quantity of the auxiliary thread is undershot, so that the operating personnel are advantageously warned before the auxiliary thread bobbin is completely empty and thus an interruption in operation due to a missing auxiliary thread can be completely prevented.
  • the warning signal is sent to a signal lamp arranged on the spinning machine, in particular on the service car, and / or to a human-machine interface (HMI) or an informator, in particular on the spinning machine or on the service trolley, to display an alarm message there.
  • the warning signal is forwarded to a control system or a telephone exchange (POC) and / or to an operator of the spinning machine, in particular by means of a portable terminal, in order to notify the responsible operating personnel, which advantageously means the operating state of the service car, both to the operator and centrally in the company operating the spinning machine.
  • POC telephone exchange
  • FIG. 1 A schematically illustrated embodiment of a service carriage 1 of an open-end rotor spinning machine for producing reticle coils, an auxiliary thread spool 2 is arranged in the interior of the service carriage 1.
  • the auxiliary thread 3 is guided from the auxiliary thread spool 2 to the outside of the service carriage 1 via an auxiliary thread guide 4, the auxiliary thread 3 being deflected in the region of the auxiliary thread guide 4 by means of a deflection roller 9.
  • a thread monitor 5c is arranged in the region of the auxiliary thread guide 4 as a sensor 5.
  • the auxiliary thread 3 runs through the thread monitor 5c (see Fig. 1a ).
  • the thread monitor 5c is connected via a signal cable 14 to a control device 10 of the service vehicle 1, so that the thread monitor 5c receives a signal the control device 10 can send when an auxiliary thread 3 is no longer detected in the thread monitor 5c and the auxiliary thread spool 2 is accordingly empty (see Fig. 1b ).
  • the signal of the sensor 5 is processed in the control device 10 and subsequently first passed on to a signal lamp or to an informator 11 formed as a human-machine interface (HMI).
  • HMI human-machine interface
  • the control system or a communication center 12 of the company operating the spinning machine is notified, and finally the responsible operator receives information about the necessary replacement of the auxiliary thread spool 2 via his mobile phone 13.
  • a light barrier 5b can also be used as the sensor 5, which is arranged parallel to a central longitudinal axis 7 of the auxiliary thread spool 2 in such a way that when the auxiliary thread spool 2 is full, the auxiliary thread 3 located thereon between a transmitter part 8a of the light barrier 5b and a receiver part 8b
  • Light barrier 5b is arranged so that when the auxiliary bobbin 2 is full, light barrier 5b is interrupted (see Fig. 2a ).
  • the diameter of the auxiliary thread spool 2 is reduced, so that the auxiliary thread 3 on the auxiliary thread spool 2 is no longer located between the transmitter part 8a and the receiver part 8b of the light barrier 5b and thus the light barrier 5b is closed (see Fig. 2b ). Accordingly, the operator of the spinning machine then receives a message that there is only a small remaining amount of auxiliary thread 3 on the auxiliary thread spool 2 and the auxiliary thread spool 2 must therefore be replaced in order to prevent the spinning machine from being interrupted.
  • a laser light distance sensor 5a can also be used in the service carriage 1 for the quantitative determination of the quantity of auxiliary thread 3 located on the auxiliary thread spool 2.
  • the laser light distance sensor 5a is directed perpendicular to the central longitudinal axis 7 onto a surface 6 of the auxiliary thread bobbin 2, so that the distance to this surface 6 is measured (see Fig. 3a and 3b ).
  • a laser light distance sensor 5a exactly the remaining amount of the auxiliary thread 3 can thus be determined at any time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19198179.4A 2018-09-21 2019-09-19 Chariot de service et procédé d'alimentation automatique des postes de filage d'un métier à filer Withdrawn EP3626871A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018007464.2A DE102018007464A1 (de) 2018-09-21 2018-09-21 Servicewagen und Verfahren zum selbsttätigen Versorgen von Spinnstellen einer Spinnmaschine

Publications (1)

Publication Number Publication Date
EP3626871A1 true EP3626871A1 (fr) 2020-03-25

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EP19198179.4A Withdrawn EP3626871A1 (fr) 2018-09-21 2019-09-19 Chariot de service et procédé d'alimentation automatique des postes de filage d'un métier à filer

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Country Link
EP (1) EP3626871A1 (fr)
CN (1) CN110938901A (fr)
DE (1) DE102018007464A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112197710A (zh) * 2020-11-09 2021-01-08 恒天重工股份有限公司 一种用于筒子纱残余量检测的装置
CN113026189B (zh) * 2021-03-15 2022-07-05 福建泳力泰针织机械有限公司 一种三线卫衣机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391110A2 (fr) * 1989-03-22 1990-10-10 Maschinenfabrik Rieter Ag Procédé et dispositif pour enfiler un fil partiellement enroulé sur une bobine de fil dans un métier à filer
DE19939801A1 (de) 1999-08-21 2001-02-22 Schlafhorst & Co W Serviceaggregat für eine Kreuzspulen herstellende Textilmaschine
DE10160861A1 (de) * 2001-12-12 2003-06-26 Rieter Ag Maschf Verfahren und System zum Beheben von Störungen an Spinnmaschinen
DE10338326A1 (de) * 2003-08-21 2005-03-24 Rieter Ingolstadt Spinnereimaschinenbau Ag Verfahren und Wartungseinrichtung zum Betreiben von Spinnmaschinen mit wenigstens einer Hilfsspule
DE102004050738A1 (de) * 2004-10-19 2006-04-20 Rieter Ingolstadt Spinnereimaschinenbau Ag Textilmaschine mit Wartungseinrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006864A (en) * 1973-11-27 1977-02-08 Daiwa Boseki Kabushiki Kaisha Method and apparatus for carrying out doffing and donning operation
DE3801964A1 (de) * 1988-01-23 1989-07-27 Schlafhorst & Co W Verfahren und einrichtung zum wiederherstellen des spinnbetriebs nach einer unterbrechung
EP1375709B1 (fr) * 2002-06-21 2014-08-06 Maschinenfabrik Rieter Ag Procédé de rattache pour, ou rattachement dans, des postes de filature des métiers à filer à vortex d'air
ITMI20032005A1 (it) * 2003-10-16 2005-04-17 Savio Macchine Tessili Spa Carrello di servizio ai filatoi open end

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391110A2 (fr) * 1989-03-22 1990-10-10 Maschinenfabrik Rieter Ag Procédé et dispositif pour enfiler un fil partiellement enroulé sur une bobine de fil dans un métier à filer
DE19939801A1 (de) 1999-08-21 2001-02-22 Schlafhorst & Co W Serviceaggregat für eine Kreuzspulen herstellende Textilmaschine
DE10160861A1 (de) * 2001-12-12 2003-06-26 Rieter Ag Maschf Verfahren und System zum Beheben von Störungen an Spinnmaschinen
DE10338326A1 (de) * 2003-08-21 2005-03-24 Rieter Ingolstadt Spinnereimaschinenbau Ag Verfahren und Wartungseinrichtung zum Betreiben von Spinnmaschinen mit wenigstens einer Hilfsspule
DE102004050738A1 (de) * 2004-10-19 2006-04-20 Rieter Ingolstadt Spinnereimaschinenbau Ag Textilmaschine mit Wartungseinrichtung

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Publication number Publication date
CN110938901A (zh) 2020-03-31
DE102018007464A1 (de) 2020-03-26

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