EP2762617A1 - Method for optimising a batch change in an open-end spinning machine - Google Patents

Method for optimising a batch change in an open-end spinning machine Download PDF

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Publication number
EP2762617A1
EP2762617A1 EP13006037.9A EP13006037A EP2762617A1 EP 2762617 A1 EP2762617 A1 EP 2762617A1 EP 13006037 A EP13006037 A EP 13006037A EP 2762617 A1 EP2762617 A1 EP 2762617A1
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EP
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Prior art keywords
spinning
open
operator
spinning machine
yarn
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EP13006037.9A
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German (de)
French (fr)
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EP2762617B1 (en
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Tai Mac
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Saurer Spinning Solutions GmbH and Co KG
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Saurer Germany GmbH and Co KG
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    • 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
    • D01H4/42—Control of driving or stopping
    • D01H4/44—Control of driving or stopping in rotor spinning
    • 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
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • 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
    • D01H13/24—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to delivery of a measured length of material, completion of winding of a package or filling of a receptacle

Definitions

  • the invention relates to a method for operating an open-end rotor spinning machine with a plurality of similar jobs, each having an open-end spinning device for producing a thread and a winding device for producing a cross-wound bobbin and a single driven device for preparing a required for re-spinning thread end, said the winding device includes a pivotally mounted creel, a powered by a reversible single drive drive drum and a motor driven Einzelchang Fadenchangier alike and the jobs are each equipped with a pivotally mounted suction nozzle.
  • Open-end rotor spinning machines have long been known and usually consist of a plurality of juxtaposed in series, similar jobs. Each of these jobs has both a spinning and a winding device, where the sliver presented in a sliver can be spun into a yarn and wound into a cheese.
  • the presented sliver is fed by means of a sliver feed cylinder of the opening roller, which dissolves the sliver in individual fibers with their clothing and transported to the fiber channel of the spin box.
  • the fiber transport is supported by the negative pressure in the rotor housing, which generates an air flow in the fiber channel, releases the fibers from the dissolving set and conveys them into the rotor via the so-called channel plate adapter. Due to the centrifugal force, the fibers slip into the collecting groove of the rotor, where they are collected according to the set yarn count, drawn off through the draw-off nozzle in the axis of rotation and thus twisted into a yarn and wound up.
  • the spinning or winding devices are each in communication with a workstation computer.
  • the individual workstation computers are in turn optionally connected via section control units to the central control unit of the open-end rotor spinning machine.
  • a method for optimizing a lot change on an open-end spinning machine is the DE 196 48 215 A1 removable.
  • a bobbin exchange strategy is disclosed .
  • the time of the end of the game is advanced so that the period is eliminated in which the efficiency drops so seriously that the resulting losses exceed the value difference between in this time still producible ready-wound cheeses and packages 2nd choice. Therefore, the period of time between the initiation of the end of the lot and the end of the lot must be at least equal to the production time necessary to reach a 2nd choice package. If the time period mentioned is below this mecanicbewicklungsdauer, the spinning unit is stopped.
  • a disadvantage of the method proves that due to the central drives to perform the lot change the entire open-end spinning machine or at least sections must be shut down so that the required work can be performed by the operator and the maintenance facility. These time-consuming tasks reduce the efficiency of the open-end spinning machine, because during this work, the respective jobs over a longer period of time can produce no yarn.
  • a disadvantage of the method according to the prior art proves that usually a lot change also requires the replacement of the fiber raw material and the spin agent. Only in exceptional cases, these factors of different games match, so that in the described circumstances can not really be spoken of a game change.
  • the invention has for its object to propose a method that allows a smooth batch change including the exchange of the fiber raw material and spin agents.
  • a required step for the batch start which is carried out automatically by the work station, the retrieval of stored game data to the central computer.
  • the basic settings of earlier games are stored and can be retrieved independently from the respective job, so that they serve as the basis for the current game.
  • the claims 4 and 5 illustrate that operations to be performed by the operator are the replacement of the spinning can and / or the replacement of spinning means.
  • operations to be performed by the operator are the replacement of the spinning can and / or the replacement of spinning means.
  • spin agent such as the rotor or the discharge nozzle
  • FIG. 1 schematically shows a front view of an open-end rotor spinning machine 40 with end frames 41, 42 and a plurality between the end frames 41, 42 arranged similar, self-sufficient work places.
  • end frames 41 and 42 as usual, for example, a textile machine's own vacuum source 45, an electrical power supply and a central computer 46 of the open-end rotor spinning machine 40 are arranged.
  • the central computer 46 is in turn connected to the workstation computers 47 of the individual workstations 1, preferably via a bus system 43.
  • the numerous work stations 1 each have a workstation housing 11 with an open-end spinning device 2, a winding device 44, a suction nozzle 4 and other known yarn treatment devices, such as a waxing device 5, on.
  • a sliver 48 which is stored in sliver cans 49, which are positioned in series next to each other below the work stations 1, spun into a yarn 3, which then on the winding device 44 to a cheese 8 is wound up.
  • the open-end rotor spinning machine 40 is also equipped with a movable along the workstations 1 cheese package changer 6, which changes in case of need finished cheeses 8 against fresh empty tubes 10.
  • FIG. 2 shows in front view and on a larger scale one of the self-sufficient jobs 1 of the open-end rotor spinning machine 40 during the spinning process. That is, in the open-end spinning device 2, a sliver 48 fed via the sliver feed roller 25 is spun into a finished yarn 3 which is drawn off by the yarn take-off device 35.
  • the finished thread 3 is tangent on its way to the cheese 8, the piecing element 20, the thread cleaner 21, the thread tensioner 16 and the waxing device 5, before he traverses, traversed by the Fadenchangier responded 18, runs on the cheese 8.
  • the cross-wound bobbin 8 is held freely rotatably in a creel 9 and is acted upon rotationally by a drive drum 12 driven by a single motor.
  • the suction nozzle 4 of the workstation 1 is defined by means of its stepping motor 28 between a thread receiving position in which the mouth of the suction nozzle 4 is positioned in the region of the cross-wound bobbin 8 held in the creel 9, a yarn transfer position in the region of the spinning device 2 and a rest position 29.
  • the suction nozzle 4 is positioned in the rest position 29 during the spinning process and is thereby reliably fixed by a locking device 30.
  • the operator can now replace the spinning can 49 together with the sliver 48, use another rotor, not shown, and optionally replace other spin agents such as the trigger nozzle, not shown.
  • the operator activates by pressing an operating button 52, the job 1, so that it is released for the other, to be carried out by her self-sufficient work.
  • Job 1 retrieves the lot data of the new production at the central computer 46.
  • Necessary spinning parameters are, for example, the delay, the yarn twist and the rotor speed.
  • These basic game data are transmitted via the bus system 43 to the workstation's own computer 47 and used by them to control the responsible functional elements of the jobs 1.
  • the jobs 1 of the open-end spinning machines 40 can complete the cheeses 8 gradually and start after completion of the work necessary for the batch change with the production of the new lot, without having to wait for the remaining jobs 1, the still produce "old" yarn section.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The method involves has a winding device (44) which produces a cross-wound bobbin (8). An individually driven unit prepares a required set for rejoining the yarn end (3). A spooling device is provided with a pivoted coil frame, and that is acted upon by a reversible single drive drum. The single motor driven yarn traversing device and the work stations (1) are equipped with a pivotally mounted suction nozzle (4). The match end signal is output indicative of output signals from the operator to perform the manual steps for batch change of the work place.

Description

Die Erfindung betrifft ein Verfahren zum Betreiben einer Offenend-Rotorspinnmaschine mit einer Vielzahl gleichartiger Arbeitsstellen, die jeweils eine Offenend-Spinnvorrichtung zur Fertigung eines Fadens sowie eine Spulvorrichtung zur Herstellung einer Kreuzspule als auch eine einzeln angetriebene Einrichtung zum Vorbereiten eines zum Wiederanspinnen benötigten Fadenendes aufweisen, wobei die Spulvorrichtung einen schwenkbar gelagerten Spulenrahmen, eine durch einen reversiblen Einzelantrieb beaufschlagbare Antriebstrommel sowie eine einzelmotorisch antreibbare Fadenchangiereinrichtung beinhaltet und die Arbeitsstellen jeweils mit einer schwenkbar gelagerten Saugdüse ausgestattet sind.The invention relates to a method for operating an open-end rotor spinning machine with a plurality of similar jobs, each having an open-end spinning device for producing a thread and a winding device for producing a cross-wound bobbin and a single driven device for preparing a required for re-spinning thread end, said the winding device includes a pivotally mounted creel, a powered by a reversible single drive drive drum and a motor driven Einzelchang Fadenchangiereinrichtung and the jobs are each equipped with a pivotally mounted suction nozzle.

Offenend-Rotorspinnmaschinen sind seit langem bekannt und bestehen in der Regel aus einer Vielzahl von in Reihe nebeneinander angeordneten, gleichartigen Arbeitsstellen. Jede dieser Arbeitsstellen verfügt sowohl über eine Spinn- als auch eine Spulvorrichtung, an denen das in einer Spinnkanne vorgelegte Faserband zu einem Garn versponnen und zu einer Kreuzspule aufgewickelt wird.Open-end rotor spinning machines have long been known and usually consist of a plurality of juxtaposed in series, similar jobs. Each of these jobs has both a spinning and a winding device, where the sliver presented in a sliver can be spun into a yarn and wound into a cheese.

Dazu wird das vorgelegte Faserband mittels eines Faserbandeinzugszylinders der Auflösewalze zugeführt, die mit ihrer Garnitur das Faserband in Einzelfasern auflöst und zum Faserkanal der Spinnbox transportiert. Unterstützt wird der Fasertransport durch den im Rotorgehäuse bestehenden Unterdruck, der im Faserkanal einen Luftstrom erzeugt, die Fasern aus der Auflösegarnitur löst und über den so genannten Kanalplattenadapter gezielt in den Rotor befördert. Durch die Zentrifugalkraft rutschen die Fasern in die Sammelnut des Rotors, werden dort entsprechend der eingestellten Garnfeinheit gesammelt, durch die Abzugsdüse hindurch in der Drehachse abgezogen und so zu einem Garn verdreht und aufgewickelt.For this purpose, the presented sliver is fed by means of a sliver feed cylinder of the opening roller, which dissolves the sliver in individual fibers with their clothing and transported to the fiber channel of the spin box. The fiber transport is supported by the negative pressure in the rotor housing, which generates an air flow in the fiber channel, releases the fibers from the dissolving set and conveys them into the rotor via the so-called channel plate adapter. Due to the centrifugal force, the fibers slip into the collecting groove of the rotor, where they are collected according to the set yarn count, drawn off through the draw-off nozzle in the axis of rotation and thus twisted into a yarn and wound up.

Die Spinn- respektive Spulvorrichtungen stehen jeweils mit einem Arbeitsstellenrechner in Verbindung. Die einzelnen Arbeitsstellenrechner sind ihrerseits gegebenenfalls über Sektionssteuereinheiten an die Zentralsteuereinheit der Offenend-Rotorspinnmaschine angeschlossen.The spinning or winding devices are each in communication with a workstation computer. The individual workstation computers are in turn optionally connected via section control units to the central control unit of the open-end rotor spinning machine.

Um bei einer Offenend-Rotorspinnmaschine eine hohe Produktivität zu erlangen, wird bekanntlich mit möglichst hoher Geschwindigkeit gesponnen respektive aufgewickelt.In order to obtain a high productivity in an open-end rotor spinning machine, it is known that spun respectively wound with the highest possible speed.

Bei einem Partiewechsel werden üblicherweise sowohl der in den Spinnkannen vorgelegte Faserrohstoff einer "alten" Garnpartie, die zugehörigen Kreuzspulen als auch die Spinnmittel wie beispielsweise der Rotor aus den Arbeitsstellen der Offenend-Rotorspinnmaschine entfernt und durch Spinnkannen mit Faserrohstoff einer "neuen" Garnpartie, neue Leerhülsen sowie neue Spinnmittel ersetzt.In a batch change usually both presented in the spinning cans pulp of an "old" yarn lot, the associated cheeses and the spin agents such as the rotor from the work stations of the open-end rotor spinning machine and by spinning cans with pulp of a "new" yarn lot, new empty tubes as well as new spin agents replaced.

Um die Ausfallzeiten der Arbeitsstellen und die damit einhergehenden Produktionsverluste so gering wie möglich zu halten, wurden in der Vergangenheit unterschiedliche Strategien verfolgt.In order to minimize the downtime of jobs and the associated production losses, different strategies have been used in the past.

Ein Verfahren zur Optimierung eines Partiewechsels an einer Offenend-Spinnmaschine ist der DE 196 48 215 A1 entnehmbar. Um den Anteil an fertiggewickelten Kreuzspulen und Kreuzspulen 2. Wahl, das sind hier Kreuzspulen, die nicht mit der vollen Garnlänge bewickelt wurden, bei gleichzeitiger Reduzierung der Rest- beziehungsweise Abfallspulen zu erhöhen, deren Garnmenge nicht ausreicht, um sie weiterzuverarbeiten, wird eine Spulenwechselstrategie offenbart. Dazu wird der Zeitpunkt des Partieendes so vorverlegt, dass die Zeitspanne eliminiert wird, in der der Nutzeffekt so gravierend abfällt, dass die dadurch entstehenden Verluste die Wertdifferenz zwischen in dieser Zeit noch erzeugbaren fertiggewickelten Kreuzspulen und Kreuzspulen 2. Wahl übersteigen. Daher muss die Zeitspanne zwischen der Einleitung des Partieendes und dem Partieende mindestens der Produktionszeit entsprechen, die zur Erreichung einer Kreuzspule 2. Wahl erforderlich ist. Liegt die genannte Zeitspanne unterhalb dieser Mindestbewicklungsdauer, wird die Spinnstelle stillgesetzt.A method for optimizing a lot change on an open-end spinning machine is the DE 196 48 215 A1 removable. In order to increase the proportion of finished-wound cheeses and second choice packages, which are here cheeses that were not wound with the full yarn length, while reducing the residual or waste bobbins whose yarn amount is insufficient to process them further, a bobbin exchange strategy is disclosed , For this purpose, the time of the end of the game is advanced so that the period is eliminated in which the efficiency drops so seriously that the resulting losses exceed the value difference between in this time still producible ready-wound cheeses and packages 2nd choice. Therefore, the period of time between the initiation of the end of the lot and the end of the lot must be at least equal to the production time necessary to reach a 2nd choice package. If the time period mentioned is below this Mindestbewicklungsdauer, the spinning unit is stopped.

Durch die Offenlegungsschrift DE 102 51 623 A1 sind ein Verfahren und eine Vorrichtung zum Warten von Aggregaten einer Spinnmaschine bekannt. Grundsätzlich werden hierbei alle anfallenden Wartungsarbeiten, beispielsweise bei Partieende, in zwei Kategorien unterteilt; einerseits in Wartungsarbeiten, die durch eine Bedienperson ausgeführt werden müssen und andererseits in Hilfsarbeiten, welche sich mit einer längs den Arbeitsstellen verfahrbaren Wartungseinrichtung durchführen lassen. Zusätzlich ist die Wartungseinrichtung mit einem Magazin ausgestattet, um sowohl die ausgebauten als auch die einzubauenden Elemente aufzunehmen. Die Bedienperson wird auf diese Weise entlastet und muss sich nur noch um die Kernarbeiten der Wartungsarbeiten kümmern. So wird die während eines Stillstandes einer Spinnmaschine benötigte Zeit, um anfallende Wartungsarbeiten durchzuführen, reduziert.By the publication DE 102 51 623 A1 For example, a method and an apparatus for servicing aggregates of a spinning machine are known. Basically, all maintenance work, for example at the end of a lot, is subdivided into two categories; on the one hand in maintenance work, which must be performed by an operator and on the other hand in auxiliary work, which can be carried out with a movable along the workstations maintenance facility. In addition, the maintenance facility is equipped with a magazine to accommodate both the removed as well as the elements to be incorporated. The operator is relieved in this way and has only to worry about the core work of maintenance. Thus, the time required during a standstill of a spinning machine to perform any maintenance work is reduced.

Eine weitere Strategie anfallende Wartungstätigkeiten, insbesondere bei einem Partiewechsel, an einer Offenend-Rotorspinnmaschine in besonders kurzer Zeit durchzuführen, wird durch die DE 10 2004 044 551 A1 offenbart. Die Wartungstätigkeit wird in manuell oder maschinell auszuführende Arbeitsschritte aufgegliedert, wobei letztere dann von der Wartungseinrichtung ausgeführt werden. Während die Wartungseinrichtung die maschinell auszuführenden Arbeiten durchführt, kann das Bedienpersonal an den stillgesetzten Arbeitsstellen die manuell auszuführenden Arbeitsschritte verrichten.Another strategy to perform maintenance activities, especially in a lot change, on an open-end rotor spinning machine in a very short time to be performed by the DE 10 2004 044 551 A1 disclosed. The maintenance activity is broken down into manual or mechanical operations, the latter then being performed by the maintenance facility. While the maintenance facility carries out the work to be carried out by machine, the operator can perform the work steps to be performed manually at the shutdown workstations.

Als nachteilig an den Verfahren erweist sich, dass aufgrund der zentralen Antriebe zur Durchführung des Partiewechsels die gesamte Offenend-Spinnmaschine oder zumindest Sektionen stillgesetzt werden müssen, damit die erforderlichen Arbeiten von dem Bedienpersonal und der Wartungseinrichtung durchgeführt werden können. Diese zeitintensiven Arbeiten vermindern den Wirkungsgrad der Offenend-Spinnmaschine, denn während dieser Arbeiten können die jeweiligen Arbeitsstellen über einen längeren Zeitraum kein Garn produzieren.A disadvantage of the method proves that due to the central drives to perform the lot change the entire open-end spinning machine or at least sections must be shut down so that the required work can be performed by the operator and the maintenance facility. These time-consuming tasks reduce the efficiency of the open-end spinning machine, because during this work, the respective jobs over a longer period of time can produce no yarn.

Aufgrund der DE 101 39 075 A1 ist eine Offenend-Spinnmaschine bekannt, deren Arbeitsstellen als überwiegend autarke Arbeitsstellen ausgebildet sind. Die Arbeitsstellen verfügen dazu über Einzelantriebe, die mittels eines Arbeitsstellenrechners definiert ansteuerbar sind. Das bedeutet, jede Arbeitsstelle weist eine durch einen reversiblen Einzelantrieb beaufschlagbare Antriebstrommel sowie eine einzelmotorisch antreibbare Fadenchangiereinrichtung auf. Außerdem sind derartige Arbeitsstellen mit einer schwenkbar gelagerten Saugdüse ausgestattet, die mittels eines Einzelantriebes zwischen einer Fadenaufnahmestellung im Bereich einer in der Spulvorrichtung gehalterten Kreuzspule und einer Fadenübergabestellung im Bereich der Offenend-Spinnvorrichtung verstellbar ist. Des Weiteren werden sowohl die Fadenabzugseinrichtung als auch der Fadenspeicher einzelmotorisch angetrieben.Due to the DE 101 39 075 A1 is an open-end spinning machine known whose jobs are designed as predominantly self-sufficient jobs. The workstations have individual drives that can be controlled by a workstation computer. This means that each workstation has a drive drum which can be acted upon by a reversible individual drive and a thread-changing device which can be driven by a single motor. In addition, such jobs are equipped with a pivotally mounted suction nozzle, which is adjustable by means of a single drive between a thread receiving position in the region of a held in the winding device cheese and a yarn transfer position in the field of open-end spinning device. Furthermore, both the Thread take-off device and the thread storage motor driven single motor.

In der entsprechenden Bedienungsanleitung zu einer Offenend-Spinnmaschine mit autarken Arbeitsstellen von Oerlikon Schlafhorst, V3.0 von 12.2011 ist ein so genannter "Gleitender Partiewechsel" beschrieben. Voraussetzung für den gleitenden Partiewechsel ist allerdings, dass sowohl Spinnmittel als auch der Faserrohstoff beider Partien übereinstimmen.In the corresponding user manual for an open-end spinning machine with self-sufficient workstations of Oerlikon Schlafhorst, V3.0 of 12.2011 a so-called "sliding lot change" is described. However, the precondition for the sliding batch change is that both spin agent and the fiber raw material of both lots match.

Arbeitsstellen, die das gleiche Garn herstellen, werden in der Praxis gruppenweise zusammengefasst und als Produktionsgruppe bezeichnet. Bei diesem so genannten gleitenden Partiewechsel stellen alle Arbeitsstellen der entsprechenden Produktionsgruppe nach und nach ihre Kreuzspulen fertig. Nach dem Austausch der fertiggestellten Kreuzspule gegen eine Leerhülse wechselt die Arbeitsstelle in die neue Produktionsgruppe und produziert das Garn der anderen Partie.Workplaces producing the same yarn are grouped together in practice and referred to as a production group. During this so-called sliding batch change, all workstations of the corresponding production group gradually finish their cross-wound bobbins. After replacing the finished cheese with an empty tube, the workplace changes to the new production group and produces the yarn of the other batch.

Nachteilig an dem Verfahren gemäß dem Stand der Technik erweist sich, dass üblicherweise ein Partiewechsel auch das Austauschen des Faserrohstoffes und der Spinnmittel erfordert. Nur in Ausnahmefällen stimmen diese Faktoren verschiedener Partien überein, so dass in dem beschriebenen Sachverhalt nicht wirklich von einem Partiewechsel gesprochen werden kann.A disadvantage of the method according to the prior art proves that usually a lot change also requires the replacement of the fiber raw material and the spin agent. Only in exceptional cases, these factors of different games match, so that in the described circumstances can not really be spoken of a game change.

Ausgehend von Arbeitsstellen der vorgenannten Gattung liegt der Erfindung die Aufgabe zugrunde, ein Verfahren vorzuschlagen, das einen fließenden Partiewechsel inklusive des Austauschs des Faserrohstoffs sowie von Spinnmitteln ermöglicht.Based on jobs of the aforementioned type, the invention has for its object to propose a method that allows a smooth batch change including the exchange of the fiber raw material and spin agents.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Zur Lösung der Aufgabe ist gemäß Anspruch 1 vorgesehen, dass die Arbeitsstelle nach Erreichen des Partieendes stillgesetzt wird, dass ein das Partieende anzeigendes Signal ausgegeben wird, das der Bedienperson signalisiert, dass für den Partiewechsel notwendige manuelle Schritte durchzuführen sind und dass die Arbeitsstelle nach Freigabe durch die Bedienperson selbsttätig weitere für den Partiestart erforderliche Schritte durchführt.To achieve the object is provided according to claim 1, that the job is stopped after reaching the end of the game, a signal indicating the lot end is issued, which signals the operator that are necessary to perform the lot change manual steps and that the job after Release by the operator automatically performs additional required for the party start steps.

Aufgrund dieser Vorgehensweise kann die Bedienperson auf unkomplizierte Art erkennen, an welcher Arbeitsstelle ein manuelles Eingreifen notwendig ist, wie beispielsweise das Auswechseln der Spinnkanne und des Rotors. Die Bedienperson erledigt die manuellen Arbeiten und gibt daraufhin die entsprechende Arbeitsstelle wieder frei, so dass die Arbeitsstelle alle weiteren, erforderlichen Arbeiten zum Partiewechsel autark durchführen kann. Nach der Freigabe kann die Arbeitsstelle mit der Garnproduktion der neuen Partie beginnen. Auf diese Weise werden Stillstände der Arbeitsstellen vermieden respektive verkürzt und der Wirkungsgrad der Offenend-Spinnmaschine erhöht.Due to this procedure, the operator can easily recognize at which point a manual intervention is necessary, such as the replacement of the spinning can and the rotor. The operator does the manual work and then releases the corresponding job again, so that the job can perform all other necessary work for batch change autarkic. After release, the job can begin to produce the yarn of the new lot. In this way, standstills of the jobs are avoided or shortened and increases the efficiency of the open-end spinning machine.

Vorzugsweise ist, wie in den Ansprüchen 2 und 3 beschrieben, ein erforderlicher Schritt für den Partiestart, der von der Arbeitsstelle selbsttätig durchgeführt wird, das Abrufen gespeicherter Partiedaten am Zentralrechner. Die Grundeinstellungen früherer Partien sind gespeichert und können autark von der jeweiligen Arbeitsstelle abgerufen werden, so dass diese als Basis für die aktuelle Partie dienen.Preferably, as described in claims 2 and 3, a required step for the batch start, which is carried out automatically by the work station, the retrieval of stored game data to the central computer. The basic settings of earlier games are stored and can be retrieved independently from the respective job, so that they serve as the basis for the current game.

Die Ansprüche 4 und 5 veranschaulichen, dass durchzuführende Arbeitsschritte der Bedienperson das Auswechseln der Spinnkanne und/oder das Auswechseln von Spinnmitteln sind. In der Regel werden bei einem Partiewechsel nicht nur der in Spinnkannen vorgelegte Faserrohstoff, sondern ebenfalls Spinnmittel, wie beispielsweise der Rotor oder die Abzugsdüse, ausgetauscht.The claims 4 and 5 illustrate that operations to be performed by the operator are the replacement of the spinning can and / or the replacement of spinning means. As a rule, not only the fiber raw material presented in sliver cans, but also spin agent, such as the rotor or the discharge nozzle, are exchanged during a batch change.

Weitere Einzelheiten der Erfindung sind einem nachfolgend anhand der Zeichnungen erläuterten Ausführungsbeispiel entnehmbar.Further details of the invention are shown in an embodiment explained below with reference to the drawings.

Es zeigt:

Figur 1
in Vorderansicht eine Offenend-Rotorspinnmaschine mit einer Vielzahl autarker Arbeitsstellen,
Figur 2
in Vorderansicht und in einem größeren Maßstab, eine Arbeitsstelle mit erfindungsgemäßer Anzeige.
It shows:
FIG. 1
front view of an open-end rotor spinning machine with a large number of self-sufficient workstations,
FIG. 2
in front view and on a larger scale, a job with inventive display.

Die Figur 1 zeigt schematisch in Vorderansicht eine Offenend-Rotorspinnmaschine 40 mit Endgestellen 41, 42 und einer Vielzahl zwischen den Endgestellen 41, 42 angeordneten gleichartigen, autarken Arbeitsstellen 1.The FIG. 1 schematically shows a front view of an open-end rotor spinning machine 40 with end frames 41, 42 and a plurality between the end frames 41, 42 arranged similar, self-sufficient work places. 1

In den Endgestellen 41 bzw. 42 sind, wie üblich, beispielsweise eine textilmaschineneigene Unterdruckquelle 45, eine elektrische Energieversorgung sowie ein Zentralrechner 46 der Offenend-Rotorspinnmaschine 40 angeordnet.In the end frames 41 and 42, as usual, for example, a textile machine's own vacuum source 45, an electrical power supply and a central computer 46 of the open-end rotor spinning machine 40 are arranged.

Der Zentralrechner 46 ist seinerseits mit den Arbeitsstellenrechnern 47 der einzelnen Arbeitsstellen 1, vorzugsweise über ein Bussystem 43, verbunden.The central computer 46 is in turn connected to the workstation computers 47 of the individual workstations 1, preferably via a bus system 43.

Die zahlreichen Arbeitsstellen 1 weisen jeweils ein Arbeitsstellengehäuse 11 mit einer Offenend-Spinnvorrichtung 2, einer Spulvorrichtung 44, einer Saugdüse 4 sowie weiteren bekannten Fadenbehandlungseinrichtungen, wie beispielsweise einer Paraffiniereinrichtung 5, auf.The numerous work stations 1 each have a workstation housing 11 with an open-end spinning device 2, a winding device 44, a suction nozzle 4 and other known yarn treatment devices, such as a waxing device 5, on.

Auf den Arbeitsstellen 1 wird jeweils mittels der Offenend-Spinnvorrichtung 2 ein Faserband 48, das in Spinnkannen 49 bevorratet ist, die in Reihe nebeneinander unterhalb der Arbeitsstellen 1 positioniert sind, zu einem Faden 3 gesponnen, der anschließend auf der Spulvorrichtung 44 zu einer Kreuzspule 8 aufgewickelt wird.On the workstations 1 is in each case by means of the open-end spinning device 2, a sliver 48, which is stored in sliver cans 49, which are positioned in series next to each other below the work stations 1, spun into a yarn 3, which then on the winding device 44 to a cheese 8 is wound up.

Die Offenend-Rotorspinnmaschine 40 ist außerdem mit einem entlang der Arbeitsstellen 1 verfahrbaren Kreuzspulenwechsler 6 ausgestattet, der im Bedarfsfall fertige Kreuzspulen 8 gegen frische Leerhülsen 10 wechselt.The open-end rotor spinning machine 40 is also equipped with a movable along the workstations 1 cheese package changer 6, which changes in case of need finished cheeses 8 against fresh empty tubes 10.

Die Figur 2 zeigt in Vorderansicht und in einem größeren Maßstab eine der autarken Arbeitsstellen 1 der Offenend-Rotorspinnmaschine 40 während des Spinnprozesses. Das heißt, in der Offenend-Spinnvorrichtung 2 wird ein über die Faserbandeinzugswalze 25 eingespeistes Faserband 48 zu einem fertigen Faden 3 gesponnen, der durch die Fadenabzugseinrichtung 35 abgezogen wird.The FIG. 2 shows in front view and on a larger scale one of the self-sufficient jobs 1 of the open-end rotor spinning machine 40 during the spinning process. That is, in the open-end spinning device 2, a sliver 48 fed via the sliver feed roller 25 is spun into a finished yarn 3 which is drawn off by the yarn take-off device 35.

Der fertige Faden 3 tangiert auf seinem Weg zur Kreuzspule 8 das Anspinnorgan 20, den Fadenreiniger 21, den Fadenspanner 16 sowie die Paraffiniereinrichtung 5, bevor er, durch die Fadenchangiereinrichtung 18 traversiert, auf die Kreuzspule 8 aufläuft.The finished thread 3 is tangent on its way to the cheese 8, the piecing element 20, the thread cleaner 21, the thread tensioner 16 and the waxing device 5, before he traverses, traversed by the Fadenchangiereinrichtung 18, runs on the cheese 8.

Die Kreuzspule 8 ist dabei in einem Spulenrahmen 9 frei drehbar gehaltert und wird durch eine einzelmotorisch angetriebene Antriebstrommel 12 rotatorisch beaufschlagt.The cross-wound bobbin 8 is held freely rotatably in a creel 9 and is acted upon rotationally by a drive drum 12 driven by a single motor.

Die Saugdüse 4 der Arbeitsstelle 1 ist mittels ihres Schrittmotors 28 definiert zwischen einer Fadenaufnahmestellung, in der die Mündung der Saugdüse 4 im Bereich der im Spulenrahmen 9 gehalterten Kreuzspule 8 positioniert ist, einer Fadenübergabestellung im Bereich der Spinnvorrichtung 2 sowie einer Ruhestellung 29 verschwenkbar. Die Saugdüse 4 ist während des Spinnprozesses in der Ruhestellung 29 positioniert und wird dabei durch eine Arretiereinrichtung 30 zuverlässig fixiert.The suction nozzle 4 of the workstation 1 is defined by means of its stepping motor 28 between a thread receiving position in which the mouth of the suction nozzle 4 is positioned in the region of the cross-wound bobbin 8 held in the creel 9, a yarn transfer position in the region of the spinning device 2 and a rest position 29. The suction nozzle 4 is positioned in the rest position 29 during the spinning process and is thereby reliably fixed by a locking device 30.

Wenn zum Partieende die Kreuzspule 8 fertig bewickelt ist, wird die jeweilige Arbeitsstelle 1 stillgesetzt und die LED-Einrichtung 50 am Arbeitsstellenrechner 47 blinkt.If the cross wound coil 8 is finished wound to the end of the game, the respective workstation 1 is stopped and the LED device 50 flashes on the workstation computer 47.

Die Bedienperson kann nun die Spinnkanne 49 samt Faserband 48 auswechseln, einen anderen nicht dargestellten Rotor einsetzen und gegebenenfalls weitere Spinnmittel wie beispielsweise die nicht dargestellte Abzugsdüse ersetzen.The operator can now replace the spinning can 49 together with the sliver 48, use another rotor, not shown, and optionally replace other spin agents such as the trigger nozzle, not shown.

Nach Erledigung der notwendigen Arbeiten aktiviert die Bedienperson durch Betätigen einer Bedientaste 52 die Arbeitsstelle 1, so dass sie für die weiteren, von ihr autark vorzunehmenden Arbeiten, freigegeben ist.After completion of the necessary work, the operator activates by pressing an operating button 52, the job 1, so that it is released for the other, to be carried out by her self-sufficient work.

Die Arbeitsstelle 1 ruft beispielsweise die Partiedaten der neuen Produktion am Zentralrechner 46 ab. Notwendige Spinnparameter sind dabei beispielsweise der Verzug, die Garndrehung sowie die Rotordrehzahl. Diese grundlegenden Partiedaten werden über das Bussystem 43 auf die arbeitsstelleneigenen Rechner 47 übertragen und von diesen zum Ansteuern der zuständigen Funktionselemente der Arbeitsstellen 1 benutzt.Job 1, for example, retrieves the lot data of the new production at the central computer 46. Necessary spinning parameters are, for example, the delay, the yarn twist and the rotor speed. These basic game data are transmitted via the bus system 43 to the workstation's own computer 47 and used by them to control the responsible functional elements of the jobs 1.

Da die weiteren, für den Partiestart notwendigen Arbeiten, wie zum Beispiel das Wechseln der Kreuzspule 8 gegen eine Leerhülse 10, nicht Gegenstand der vorliegenden Erfindung sind, wurde auf eine Darstellung und weitere Erläuterung der zahlreichen, an sich bekannten Handhabungseinrichtungen der Arbeitsstelle 1 verzichtet.Since the other, necessary for the batch start work, such as changing the cross-wound bobbin 8 against an empty tube 10, are not the subject of the present invention, a presentation and further explanation of the numerous, known per se handling facilities of the job 1 has been omitted.

Auf diese Weise können die Arbeitsstellen 1 der Offenend-Spinnmaschinen 40 die Kreuzspulen 8 nach und nach fertig stellen und nach Erledigung der für den Partiewechsel erforderlichen Arbeiten mit der Produktion der neuen Partie beginnen, ohne auf die übrigen Arbeitsstellen 1 warten zu müssen, die noch die "alte" Garnpartie produzieren.In this way, the jobs 1 of the open-end spinning machines 40 can complete the cheeses 8 gradually and start after completion of the work necessary for the batch change with the production of the new lot, without having to wait for the remaining jobs 1, the still produce "old" yarn section.

Claims (5)

Verfahren zum Betreiben einer Offenend-Rotorspinnmaschine (40) mit einer Vielzahl gleichartiger Arbeitsstellen (1), die jeweils eine Offenend-Spinnvorrichtung (2) zur Fertigung eines Fadens (3) sowie eine Spulvorrichtung (44) zur Herstellung einer Kreuzspule (8) als auch eine einzeln angetriebene Einrichtung zum Vorbereiten eines zum Wiederanspinnen benötigten Fadenendes (3) aufweisen, wobei die Spulvorrichtung (44) einen schwenkbar gelagerten Spulenrahmen (9), eine durch einen reversiblen Einzelantrieb beaufschlagbare Antriebstrommel (12) sowie eine einzelmotorisch antreibbare Fadenchangiereinrichtung (18) beinhaltet und die Arbeitsstellen (1) jeweils mit einer schwenkbar gelagerten Saugdüse (4) ausgestattet sind,
dadurch gekennzeichnet,
dass eine Arbeitsstelle (1), die das Partieende erreicht hat, stillgesetzt wird,
dass ein das Partieende anzeigendes Signal ausgegeben wird, das der Bedienperson signalisiert, dass für den Partiewechsel notwendige manuelle Schritte durchzuführen sind und
dass die Arbeitsstelle (1) nach Freigabe durch die Bedienperson selbsttätig weitere für den Partiestart erforderliche Schritte durchführt.Method for operating an open-end rotor spinning machine (40) having a plurality of similar workstations (1), each having an open-end spinning device (2) for producing a thread (3) and a winding device (44) for producing a cross-wound bobbin (8) as well a single driven device for preparing a thread end (3) required for re-spinning, wherein the winding device (44) includes a pivotally mounted creel (9), acted upon by a reversible single drive drive drum (12) and a single motor driven Fadenchangiereinrichtung (18) and the work stations (1) are each equipped with a pivotably mounted suction nozzle (4),
characterized,
that a job (1) which has reached the end of the lot is shut down,
that the game end indicative signal is output which signals the operator that are carried out for the lot changes necessary manual steps and
that the workstation (1) after release by the operator automatically performs additional required for the party start steps. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass ein erforderlicher Schritt für den Partiestart, der von der Arbeitsstelle (1) selbsttätig durchgeführt wird, das Abrufen gespeicherter Partiedaten darstellt.A method according to claim 1, characterized in that a required step for the batch start, which is carried out automatically by the workstation (1), the retrieval of stored game data represents. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Partiedaten am Zentralrechner (46) abgerufen werden.A method according to claim 2, characterized in that the game data are retrieved at the central computer (46). Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass ein durchzuführender erforderlicher Schritt der Bedienperson das Auswechseln der Spinnkanne (49) ist.A method according to claim 1, characterized in that a required step to be performed by the operator is the replacement of the spinning can (49). Verfahren nach Anspruch 1 oder 4, dadurch gekennzeichnet, dass ein durchzuführender erforderlicher Schritt der Bedienperson das Auswechseln von Spinnmitteln ist.A method according to claim 1 or 4, characterized in that a required step to be performed by the operator is the replacement of spinning means.
EP13006037.9A 2013-01-30 2013-12-20 Method for optimising a batch change in an open-end spinning machine Revoked EP2762617B1 (en)

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EP3875647B1 (en) 2020-03-06 2023-11-22 Maschinenfabrik Rieter AG Spinning machine and method for operating same

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DE102013001599A1 (en) 2014-07-31
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EP2762617B1 (en) 2017-03-08

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