EP3351663B1 - Method for the maintenance of spinning units of a spinning machine and spinning machine - Google Patents

Method for the maintenance of spinning units of a spinning machine and spinning machine Download PDF

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Publication number
EP3351663B1
EP3351663B1 EP18151128.8A EP18151128A EP3351663B1 EP 3351663 B1 EP3351663 B1 EP 3351663B1 EP 18151128 A EP18151128 A EP 18151128A EP 3351663 B1 EP3351663 B1 EP 3351663B1
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EP
European Patent Office
Prior art keywords
spinning
maintenance
housing
spinning unit
unit
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.)
Active
Application number
EP18151128.8A
Other languages
German (de)
French (fr)
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EP3351663A1 (en
Inventor
Bernd Bahlmann
Romeo Pohn
Mario Maleck
Thomas Gruber
Christian Kettner
Stephan Weidner-Bohnenberger
Robin Wein
Frank Baier
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP3351663A1 publication Critical patent/EP3351663A1/en
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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
    • D01H4/04—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 imparting twist by contact of fibres with a running surface
    • D01H4/22—Cleaning of running surfaces
    • D01H4/24—Cleaning of running surfaces in rotor spinning
    • 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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/16—Framework; Casings; Coverings ; Removal of heat; Means for generating overpressure of air against infiltration of dust; Ducts for electric cables
    • 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
    • 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
    • D01H13/26—Arrangements facilitating the inspection or testing of yarns or the like in connection with spinning or twisting
    • 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
    • D01H4/04—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 imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H11/00—Arrangements for confining or removing dust, fly or the like
    • 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
    • D01H13/005—Service carriages travelling along the machines
    • 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

Definitions

  • the present invention relates to a method for maintaining spinning positions of a spinning machine with a plurality of spinning positions arranged next to one another and with at least one maintenance device which can be moved along the spinning positions and by means of which the spinning positions are serviced.
  • one housing of the spinning station is opened, the spinning station is serviced by the maintenance device and, after the spinning station has been serviced, the housing is closed again.
  • the invention also relates to a corresponding spinning machine for carrying out the method.
  • a semi-automatic spinning machine is known. In this machine, some maintenance work or preparatory work for it is carried out automatically by means arranged at the spinning station itself. Other maintenance activities or preparatory actions, however, are carried out by operating personnel.
  • the machine of the DE 10 2016 109 216 A1 does not have a movable maintenance facility.
  • the means of the work station include means for at least partially opening the spin box. However, the actual maintenance activities such as cleaning the spinning rotor or initiating piecing are carried out by maintenance personnel.
  • the U.S. 3,879,926 A also describes a spinning machine in which the housing of the spinning device can be opened independently, ie without the aid of an operator.
  • the actual maintenance activities such as cleaning the spinning rotor or piecing can be carried out by maintenance personnel or by means arranged at each individual spinning station.
  • the spinning machine has a large number of similar work stations, each equipped with a spinning device for the production of a thread and a winding device for creating a cheese and designed so that after a spinning interruption from the cheese, which is retrieved, prepared for the piecing process and placed in a piecing position Thread end can be spun again independently by the spinning device.
  • Time-critical steps in the piecing process such as the defined return of the prepared thread end to the spinning rotor, the exact start of the fiber feed and the exact start of the withdrawal of the thread from the open-end spinning device, are implemented by the workstation's own facilities.
  • Necessary maintenance work before the actual start of the piecing process, such as rotor cleaning, will be carried out by a service unit that independently operates the work stations.
  • the service unit is arranged to be movable along the open-end rotor spinning machine.
  • a disadvantage of such a method is that before the auxiliary work can be carried out by the movable service unit, the spinning device first has to be opened manually or by the service unit. However, this is time-consuming, which leads to a loss in performance of the spinning machine.
  • the object of the present invention is therefore to shorten the time required for maintenance of the spinning station in order to increase the efficiency of the spinning machine.
  • the object is achieved by a method for operating a spinning machine with the features of the independent claim.
  • a method for maintaining spinning positions in a spinning machine is proposed.
  • the spinning machine has a large number of spinning stations arranged next to one another and at least one maintenance device. With the help of the spinning positions, a yarn is spun from a fiber material.
  • the maintenance device can also be moved along the spinning stations in order to service the spinning stations.
  • the maintenance of the spinning positions includes, in particular, cleaning of a spinning rotor. In this case, before a spinning station is serviced, one housing of the spinning station is opened, the spinning station is serviced by the maintenance device and, after the spinning station has been serviced, the housing is closed again.
  • a spinning machine for carrying out the method, which has a plurality of spinning stations arranged next to one another and at least one maintenance device which can be moved along the spinning stations and by means of which the spinning stations can be serviced.
  • Each spinning station has a housing which is closed during the spinning process and which can be opened for servicing the spinning station.
  • the housing of the spinning station to be serviced is automatically opened for maintenance with the aid of a closure means arranged at the spinning station. Additionally or alternatively, the housing of the spinning station is automatically closed by the closure means after maintenance.
  • the closure means has an actuator which opens and / or closes the housing.
  • a closure means for automatically opening the housing prior to maintenance by the maintenance device and / or arranged to automatically close the housing after maintenance by the maintenance device.
  • the closure means is accordingly designed to open and / or close the housing.
  • the closure means has an actuator which opens and / or closes the housing.
  • the maintenance includes cleaning a spinning means, in particular a spinning rotor and / or a thread take-off nozzle.
  • the spinning agent is cleaned by means of a cleaning device arranged in the movable maintenance device, but advantageously the spinning device or the housing of the spinning station has already been opened beforehand by the spinning station itself.
  • the maintenance can also include other steps, each of which requires the opening of a housing.
  • the spinning machine can be designed as a rotor spinning machine, but the invention can also be used on an air-jet spinning machine.
  • the housing of the spinning station to be serviced is opened before the maintenance device has reached the spinning station or is positioned in front of it.
  • the maintenance device can begin with the maintenance immediately after it has been positioned in front of the spinning station in question, so that the time that the maintenance device stays at the spinning station is shortened even further.
  • the maintenance device can service more spinning positions in the same time.
  • the spinning machine and / or the spinning station has a control which detects the approach of the maintenance device to the spinning station to be serviced and controls the closure means in such a way that the housing is open when the maintenance device reaches the spinning station.
  • the approach of the maintenance device to the spinning position to be serviced is preferably recognized with the aid of a control of the spinning machine
  • the housing of the spinning station to be serviced is initiated so that the housing is opened when the maintenance device has reached the spinning station.
  • the approach of the maintenance device can be defined, for example, as a certain distance of the maintenance device from the spinning station, which is recorded by means of certain measuring means.
  • the control can, for example, constantly measure the location of the maintenance device on the spinning machine and the speed at which the maintenance device moves in the direction of the spinning station to be maintained. From this, the control can calculate the expected travel time of the maintenance device until it reaches the spinning station to be serviced and cause the maintenance device to open the housing of the spinning station in advance of reaching the spinning station.
  • the spinning station can wait for the maintenance device with the housing open.
  • the control must be configured in a suitable manner.
  • a time value can be stored in the control which indicates how long it takes to open the spinning position. It is thus possible to calculate a position of the approaching maintenance facility which, when it is reached, causes the housing to be opened. As a result, the opening is just completed when the maintenance device reaches the spinning station. While production is still running at the spinning station to be serviced, production is carried out at the spinning station for as long as possible and the time in which the spinning station is stationary is shortened.
  • an area around the spinning station to be serviced is defined and, with the aid of the control of the spinning machine, it is detected whether the maintenance device is located in the area around the spinning station.
  • the opening of the housing is only initiated when the maintenance device, or in the case of several maintenance devices, one of the maintenance devices, is in the surrounding area and it is therefore foreseeable that the maintenance facility will soon pass. Unnecessary or premature opening of the housing can thus be avoided.
  • the spinning station is stopped and the housing of the spinning station is opened as soon as the maintenance device or one of several maintenance devices is detected in the vicinity of the spinning station.
  • the control of the spinning machine must be configured in a suitable manner.
  • the time of the last maintenance can also be taken into account and only if it was a long time ago, the opening of the spinning position and the subsequent maintenance process, in particular the preventive cleaning of the spinning rotor, are initiated when the maintenance facility is passed.
  • a check is made as to whether the maintenance device is located in the surrounding area.
  • the check can also be carried out by means of the control of the spinning machine. If the maintenance device is located in the vicinity of this spinning station, it is ordered to the relevant spinning station for maintenance, the maintenance is carried out and only then is production resumed, in particular a thread is spun again.
  • This embodiment is therefore particularly advantageous in a spinning machine which has its own piecing device. If, after an interruption in production, a maintenance facility is available nearby, ie with a short travel distance, maintenance, in particular cleaning of the spinning rotor in the case of a rotor spinning machine, can be carried out in a very short time before production is resumed. If, on the other hand, there is no maintenance facility in the vicinity, production starts immediately and without Maintenance resumed in order to keep the downtime of the spinning unit as short as possible.
  • the housing of the spinning station is automatically closed by the closure means of the spinning station.
  • the closing can take place independently of the position of the maintenance device, that is to say for example already at a point in time at which the maintenance device is still positioned in front of the spinning station.
  • the maintenance device continues its journey and the housing of the spinning station is only then closed automatically by the locking means of the spinning station and production at the spinning station is resumed.
  • the maintenance device can therefore already move to the next point of meaning and wait, which further increases the productivity of the spinning machine.
  • the maintenance device it is also possible for the maintenance device to take over the fast process of closing the spinning station before it starts moving on.
  • the re-spinning of a thread after the automatic closing of the housing is carried out by a spinning station's own piecing device.
  • the spinning machine can be serviced more quickly overall, so that the efficiency of the spinning machine increases.
  • the closure means comprises, as an actuator, a magnetic switch, a pneumatic and / or a hydraulic piston and / or an electric motor which opens and / or closes the housing.
  • Figure 1 shows a schematic view of a spinning machine 1 with a plurality of spinning stations 2 (for the sake of simplicity only one spinning station 2 is provided with a reference number) and a movable maintenance device 3.
  • the maintenance device 3 is arranged on a rail 4 so that it can be moved in a direction of travel 6.
  • the rail 4 preferably extends around the spinning stations 2, as shown here, so that the maintenance device 3 can move from one side of the spinning machine 1 to the other side of the spinning machine 1.
  • a cover 5 (shown here by way of example at the spinning station 2) of a housing 8 of the spinning stations 2 is opened for maintenance by maintenance personnel or by the maintenance device 3.
  • the cover 5 of the housing 8 of the spinning station 2 can be pivoted in a pivoting direction 7, so that the housing 8 of the spinning station 2 can be opened and / or closed.
  • the opening of the cover 5 by the maintenance personnel is very time-consuming.
  • the opening of the cover 5 by the maintenance device 3 is also still quite time-consuming, so that the productivity of the spinning machine 1 is reduced.
  • the cover 5 is attached to a housing 8 of the spinning rotor 10 (see FIG. Figure 2 ) that is opened.
  • the housing 8 of the spinning station 2 is automatically opened for maintenance in order to maintain the spinning machine 1. Additionally or alternatively, the housing 8 of the spinning station 2 is also automatically closed again after the maintenance. The opening and / or the closing is carried out by a closure means 9, which is shown in FIG Figure 2 is shown.
  • FIG. 2 shows a schematic side view of a spinning station 2 with a closure means 9 for opening and / or closing the housing 8 of the spinning station 2.
  • the present spinning station 2 is designed as a spinning station 2 of a rotor spinning machine and has a spinning rotor 10 as a spinning element, which rotates in the housing 8 is stored.
  • the thread F produced by the spinning rotor 10 is drawn off by a thread draw-off nozzle 11 and fed to a winding device (not shown here).
  • the cover 5 for closing the housing 8 can also be seen.
  • the opening and closing of the housing 8 takes place by means of the closing means 9, which in the present case comprises a threaded spindle with a drive motor and swings the cover away from the housing 8 or pulls it towards it.
  • the maintenance device 3 can service the spinning station, in particular clean the spinning rotor 10 of the spinning station 2.
  • the maintenance device 3 can conclude maintenance work on another spinning station 2 or use the time to travel to the next spinning station 2 to be serviced. As a result, a total of more spinning stations 2 can be serviced, so that the productivity of the spinning machine 1 increases.
  • the cover 5 of the spinning station 2 can advantageously already be opened when it is foreseeable that the maintenance device 3 will drive past the spinning station 2.
  • the spinning machine 1 comprises a Control, not shown here, in which it is stored that the spinning station 2 has not been serviced for a long time.
  • the control recognizes that the maintenance device 3 is moving in the direction of the spinning station 2.
  • Preventive maintenance of the spinning station 2 can now be initiated, the spinning station 2 being stopped, the housing 8 of the spinning station 2 being opened and the spinning station 2 waiting for the maintenance device 3 with the housing 8 already open.
  • the maintenance device 3 can then wait for the spinning station 2 and then immediately move on to the next spinning station 2 to be serviced.
  • the maintenance activity of the maintenance device 3 preferably includes cleaning the spinning rotor.
  • the spinning station 2 is initially stopped and holds the thread so that it can be spun again after the rotor has been cleaned. After the rotor has been cleaned, the spinning station 2 closes again automatically and spins the thread F again automatically. It is therefore particularly advantageous if the spinning station 2 has its own piecing device. In principle, however, it is also possible for the maintenance device 3 to also carry out other activities, such as, for example, replacing the spinning rotor or spinning a thread.
  • the opening of the cover 5 can be initiated in such a way that the opening of the cover 5 of the housing 8 has just been completed when the maintenance device 3 arrives at the spinning station 2.
  • the spinning station 2 can thus continue to produce as long as possible.
  • the maintenance facility 3 can then begin maintenance immediately.
  • the control can order the maintenance device 3 to the spinning station 2 even before the spinning station 2 independently spins the thread again.
  • An area surrounding the spinning station 2 for example an area at a distance of up to five spinning stations 2, is advantageously defined in advance.
  • the surrounding area can of course also be in the form of a maximum permissible period of time can be defined for the travel route from the maintenance facility 3 to the spinning station 2.
  • it is then first checked by means of the control of the spinning machine 1 whether a maintenance device 3 is located in the vicinity of the spinning station 2. If this is the case, the spinning station 2 already opens automatically, so that the maintenance device 3 can start the maintenance work, in particular the rotor cleaning, immediately after reaching the spinning station 2. If, on the other hand, there is no maintenance device 3 in the vicinity of the spinning station 2, the spinning station spins the thread F again using its own piecing device without cleaning the rotor beforehand, since the spinning station would otherwise be idle for too long in an unproductive manner.
  • the present invention is not limited to the illustrated and described exemplary embodiments.
  • the spinning machine could also be designed as an air-jet spinning machine, even if the invention was described with reference to a rotor spinning machine. Modifications within the scope of the patent claims are just as possible as a combination of the features, even if these are shown and described in different exemplary embodiments.

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

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Wartung von Spinnstellen einer Spinnmaschine mit einer Vielzahl an nebeneinander angeordneten Spinnstellen und mit zumindest einer Wartungseinrichtung, die entlang der Spinnstellen verfahrbar ist und mittels der die Spinnstellen gewartet werden. Dabei wird vor dem Warten einer Spinnstelle jeweils ein Gehäuse der Spinnstelle geöffnet, die Spinnstelle durch die Wartungseinrichtung gewartet und nach dem Warten der Spinnstelle das Gehäuse wieder geschlossen. Weiterhin betrifft die Erfindung eine entsprechende Spinnmaschine zur Durchführung des Verfahrens.The present invention relates to a method for maintaining spinning positions of a spinning machine with a plurality of spinning positions arranged next to one another and with at least one maintenance device which can be moved along the spinning positions and by means of which the spinning positions are serviced. In this case, before a spinning station is serviced, one housing of the spinning station is opened, the spinning station is serviced by the maintenance device and, after the spinning station has been serviced, the housing is closed again. The invention also relates to a corresponding spinning machine for carrying out the method.

Aus der DE 10 2016 109 216 A1 ist eine halbautomatische Spinnmaschine bekannt. Bei dieser Maschine werden einige Wartungstätigkeiten oder Vorbereitungshandlungen für diese automatisch durch an der Spinnstelle selbst angeordnete Mittel durchgeführt. Andere Wartungstätigkeiten oder Vorbereitungshandlungen werden hingegen durch Bedienpersonal ausgeführt. Die Maschine der DE 10 2016 109 216 A1 verfügt über keine verfahrbare Wartungseinrichtung. Die Mittel der Arbeitsstelle umfassen Mittel zum mindestens teilweisen Aufklappen der Spinnbox. Die eigentlichen Wartungstätigkeiten wie beispielsweise das Reinigen des Spinnrotors oder das Einleiten des Anspinnens werden jedoch durch Wartungspersonal durchgeführt.From the DE 10 2016 109 216 A1 a semi-automatic spinning machine is known. In this machine, some maintenance work or preparatory work for it is carried out automatically by means arranged at the spinning station itself. Other maintenance activities or preparatory actions, however, are carried out by operating personnel. The machine of the DE 10 2016 109 216 A1 does not have a movable maintenance facility. The means of the work station include means for at least partially opening the spin box. However, the actual maintenance activities such as cleaning the spinning rotor or initiating piecing are carried out by maintenance personnel.

Die US 3,879,926 A beschreibt ebenfalls eine Spinnmaschine, bei der das Gehäuse der Spinnvorrichtung selbständig, d. h. ohne Zuhilfenahme einer Bedienperson, geöffnet werden kann. Die eigentlichen Wartungstätigkeiten wie beispielsweise das Reinigen des Spinnrotors oder das Anspinnen können durch Wartungspersonal oder durch an jeder einzelnen Spinnstelle angeordnete Mittel durchgeführt werden.The U.S. 3,879,926 A also describes a spinning machine in which the housing of the spinning device can be opened independently, ie without the aid of an operator. The actual maintenance activities such as cleaning the spinning rotor or piecing can be carried out by maintenance personnel or by means arranged at each individual spinning station.

Aus der DE 10 2007 048 720 A1 ist ein Verfahren und eine Vorrichtung zum Betreiben einer Offenend-Rotorspinnmaschine bekannt. Die Spinnmaschine weist eine Vielzahl gleichartiger Arbeitsstellen auf, welche jeweils mit einer Spinnvorrichtung zur Herstellung eines Fadens sowie einer Spulvorrichtung zum Erstellen einer Kreuzspule ausgestattet und so ausgebildet sind, dass ein nach einer Spinnunterbrechung von der Kreuzspule zurückgeholtes, für den Anspinnprozess vorbereitetes und in einer Anspinnposition bereitgelegtes Fadenende durch die Spinnvorrichtung wieder selbstständig angesponnen werden kann. Dabei werden zeitkritische Schritte des Anspinnprozesses, wie die definierte Rückführung des vorbereiteten Fadenendes in den Spinnrotor, der exakte Start der Fasereinspeisung sowie der genaue Beginn des Abzuges des Fadens aus der Offenend-Spinnvorrichtung, durch arbeitsstelleneigene Einrichtungen realisiert. Notwendige Wartungsarbeiten vor dem eigentlichen Start des Anspinnvorgangs wie beispielsweise die Rotorreinigung werden dabei durch ein die Arbeitsstellen selbstständig bedienendes Serviceaggregat ausgeführt werden. Das Serviceaggregat ist dabei entlang der Offenend-Rotorspinnmaschine verfahrbar angeordnet.From the DE 10 2007 048 720 A1 a method and a device for operating an open-end rotor spinning machine are known. The spinning machine has a large number of similar work stations, each equipped with a spinning device for the production of a thread and a winding device for creating a cheese and designed so that after a spinning interruption from the cheese, which is retrieved, prepared for the piecing process and placed in a piecing position Thread end can be spun again independently by the spinning device. Time-critical steps in the piecing process, such as the defined return of the prepared thread end to the spinning rotor, the exact start of the fiber feed and the exact start of the withdrawal of the thread from the open-end spinning device, are implemented by the workstation's own facilities. Necessary maintenance work before the actual start of the piecing process, such as rotor cleaning, will be carried out by a service unit that independently operates the work stations. The service unit is arranged to be movable along the open-end rotor spinning machine.

Nachteilig bei einem derartigen Verfahren ist, dass bevor die Hilfsarbeiten durch das verfahrbare Serviceaggregat ausgeführt werden können, die Spinnvorrichtung erst manuell oder von dem Serviceaggregat geöffnet werden muss. Dies ist jedoch zeitaufwändig, was zu Leistungseinbußen der Spinnmaschine führt.A disadvantage of such a method is that before the auxiliary work can be carried out by the movable service unit, the spinning device first has to be opened manually or by the service unit. However, this is time-consuming, which leads to a loss in performance of the spinning machine.

Aufgabe der vorliegenden Erfindung ist es somit, die für die Wartung der Spinnstelle erforderliche Zeit zu verkürzen, um die Leistungsfähigkeit der-Spinnmaschine zu erhöhen.The object of the present invention is therefore to shorten the time required for maintenance of the spinning station in order to increase the efficiency of the spinning machine.

Die Aufgabe wird gelöst durch ein Verfahren zum Betreiben einer Spinnmaschine mit den Merkmalen des unabhängigen Patentanspruchs. Vorgeschlagen wird ein Verfahren zur Wartung von Spinnstellen einer Spinnmaschine. Die Spinnmaschine weist eine Vielzahl nebeneinander angeordneter Spinnstellen und zumindest eine Wartungseinrichtung auf. Mit Hilfe der Spinnstellen wird aus einem Fasermaterial ein Garn gesponnen. Die Wartungseinrichtung kann des Weiteren entlang der Spinnstellen verfahren werden, um die Spinnstellen zu warten. Das Warten der Spinnstellen umfasst insbesondere eine Reinigung eines Spinnrotors. Dabei wird vor dem Warten einer Spinnstelle jeweils ein Gehäuse der Spinnstelle geöffnet, die Spinnstelle durch die Wartungseinrichtung gewartet und nach dem Warten der Spinnstelle das Gehäuse wieder geschlossen. Weiterhin wird eine Spinnmaschine zur Durchführung des Verfahrens vorgeschlagen, welche eine Vielzahl nebeneinander angeordneter Spinnstellen und zumindest eine Wartungseinrichtung aufweist, die entlang der Spinnstellen verfahrbar ist und mittels der die Spinnstellen gewartet werden können. Jede Spinnstelle weist ein Gehäuse auf, welches während des Spinnprozesses geschlossen ist und welches zum Warten der Spinnstelle geöffnet werden kann.The object is achieved by a method for operating a spinning machine with the features of the independent claim. A method for maintaining spinning positions in a spinning machine is proposed. The spinning machine has a large number of spinning stations arranged next to one another and at least one maintenance device. With the help of the spinning positions, a yarn is spun from a fiber material. The maintenance device can also be moved along the spinning stations in order to service the spinning stations. The maintenance of the spinning positions includes, in particular, cleaning of a spinning rotor. In this case, before a spinning station is serviced, one housing of the spinning station is opened, the spinning station is serviced by the maintenance device and, after the spinning station has been serviced, the housing is closed again. Furthermore, a spinning machine is proposed for carrying out the method, which has a plurality of spinning stations arranged next to one another and at least one maintenance device which can be moved along the spinning stations and by means of which the spinning stations can be serviced. Each spinning station has a housing which is closed during the spinning process and which can be opened for servicing the spinning station.

Erfindungsgemäß wird das Gehäuse der zu wartenden Spinnstelle für die Wartung mit Hilfe eines an der Spinnstelle angeordneten Verschlussmittels selbstständig geöffnet. Zusätzlich oder alternativ wird das Gehäuse der Spinnstelle durch das Verschlussmittel nach der Wartung selbstständig geschlossen. Das Verschlussmittel weist einen Aktor auf, der das Gehäuse öffnet und/oder schließt. Dadurch muss die Spinnstelle nicht mehr von dem Wartungspersonal oder der Wartungseinrichtung selbst geöffnet und/oder geschlossen werden. Dadurch wird die Zeit, die die Wartungseinrichtung für die Wartung benötigt verkürzt, so dass die Wartungseinrichtung wiederum mehr Spinnstellen warten kann. Auch muss die Wartungseinrichtung nicht mehr warten, bis das Wartungspersonal die zu wartende Spinnstelle öffnet. Dadurch steigt die Produktivität der Spinnmaschine.According to the invention, the housing of the spinning station to be serviced is automatically opened for maintenance with the aid of a closure means arranged at the spinning station. Additionally or alternatively, the housing of the spinning station is automatically closed by the closure means after maintenance. The closure means has an actuator which opens and / or closes the housing. As a result, the spinning station no longer has to be opened and / or closed by the maintenance personnel or the maintenance facility itself. This shortens the time that the maintenance device requires for maintenance, so that the maintenance device can in turn service more spinning positions. The maintenance device also no longer has to wait until the maintenance staff opens the spinning position to be maintained. This increases the productivity of the spinning machine.

An der Spinnstelle ist entsprechend ein Verschlussmittel zum selbstständigen Öffnen des Gehäuses vor der Wartung durch die Wartungseinrichtung und/oder zum selbständigen Schließen des Gehäuses nach der Wartung durch die Wartungseinrichtung angeordnet. Das Verschlussmittel ist dementsprechend dazu ausgebildet, das Gehäuse zu öffnen und/oder zu schließen. Das Verschlussmittel weist einen Aktor auf, der das Gehäuse öffnet und/oder schließt.At the spinning station there is accordingly a closure means for automatically opening the housing prior to maintenance by the maintenance device and / or arranged to automatically close the housing after maintenance by the maintenance device. The closure means is accordingly designed to open and / or close the housing. The closure means has an actuator which opens and / or closes the housing.

Vorteilhaft ist es dabei, wenn die Wartung eine Reinigung eines Spinnmittels, insbesondere eines Spinnrotors und/oder einer Fadenabzugsdüse, umfasst. Die Reinigung des Spinnmittels erfolgt dabei mittels einer in der verfahrbaren Wartungseinrichtung angeordneten Reinigungsvorrichtung, wobei jedoch in vorteilhafter Weise die Spinnvorrichtung bzw. das Gehäuse der Spinnstelle bereits zuvor durch die Spinnstelle selbst geöffnet wurde. Die Wartung kann jedoch auch andere Schritte umfassen, bei welchen jeweils das Öffnen eines Gehäuses erforderlich ist. Die Spinnmaschine kann dabei als Rotorspinnmaschine ausgebildet sein, ebenso kann die Erfindung jedoch auch an einer Luftspinnmaschine eingesetzt werden.It is advantageous if the maintenance includes cleaning a spinning means, in particular a spinning rotor and / or a thread take-off nozzle. The spinning agent is cleaned by means of a cleaning device arranged in the movable maintenance device, but advantageously the spinning device or the housing of the spinning station has already been opened beforehand by the spinning station itself. However, the maintenance can also include other steps, each of which requires the opening of a housing. The spinning machine can be designed as a rotor spinning machine, but the invention can also be used on an air-jet spinning machine.

Außerdem ist es vorteilhaft, wenn das Gehäuse der zu wartenden Spinnstelle geöffnet wird, bevor die Wartungseinrichtung an der Spinnstelle angelangt bzw. vor dieser positioniert ist. Dadurch kann die Wartungseinrichtung unmittelbar, nachdem sie vor der betreffenden Spinnstelle positioniert wurde, mit der Wartung beginnen, so dass die Zeit, die die Wartungseinrichtung an der Spinnstelle verweilt, noch weiter verkürzt wird. Die Wartungseinrichtung kann dadurch in gleicher Zeit mehr Spinnstellen warten.It is also advantageous if the housing of the spinning station to be serviced is opened before the maintenance device has reached the spinning station or is positioned in front of it. As a result, the maintenance device can begin with the maintenance immediately after it has been positioned in front of the spinning station in question, so that the time that the maintenance device stays at the spinning station is shortened even further. As a result, the maintenance device can service more spinning positions in the same time.

Ferner ist es vorteilhaft, wenn die Spinnmaschine und/oder die Spinnstelle eine Steuerung aufweist, welches das Herannahen der Wartungseinrichtung an die zu wartende Spinnstelle erkennt und das Verschlussmittel derart ansteuert, dass das Gehäuse geöffnet ist, wenn die Wartungseinrichtung die Spinnstelle erreicht. Bei dem Verfahren zur Wartung von Spinnstellen wird vorzugsweise mit Hilfe einer Steuerung der Spinnmaschine das Herannahen der Wartungseinrichtung an die zu wartende Spinnstelle erkannt und das Öffnen des Gehäuses der zu wartenden Spinnstelle wird so veranlasst, so dass das Gehäuse geöffnet ist, wenn die Wartungseinrichtung die Spinnstelle erreicht hat.Furthermore, it is advantageous if the spinning machine and / or the spinning station has a control which detects the approach of the maintenance device to the spinning station to be serviced and controls the closure means in such a way that the housing is open when the maintenance device reaches the spinning station. In the method for maintaining spinning positions, the approach of the maintenance device to the spinning position to be serviced is preferably recognized with the aid of a control of the spinning machine The housing of the spinning station to be serviced is initiated so that the housing is opened when the maintenance device has reached the spinning station.

Das Herannahen der Wartungseinrichtung kann beispielsweise als eine bestimmte Entfernung der Wartungseinrichtung von der Spinnstelle definiert werden, die mittels bestimmter Messmittel erfasst wird. Die Steuerung kann beispielsweise ständig den Ort der Wartungseinrichtung an der Spinnmaschine und die Geschwindigkeit, mit der die Wartungseinrichtung in Richtung der zu wartenden Spinnstelle fährt, messen. Daraus kann die Steuerung die voraussichtliche Fahrtzeit der Wartungseinrichtung bis zum Erreichen der zu wartenden Spinnstelle berechnen und das Öffnen des Gehäuses der Spinnstelle voreilend zum Erreichen der Spinnstelle durch die Wartungseinrichtung veranlassen. Die Spinnstelle kann dabei mit geöffnetem Gehäuse auf die Wartungseinrichtung warten. Die Steuerung muss hierzu in geeigneter Weise konfiguriert werden.The approach of the maintenance device can be defined, for example, as a certain distance of the maintenance device from the spinning station, which is recorded by means of certain measuring means. The control can, for example, constantly measure the location of the maintenance device on the spinning machine and the speed at which the maintenance device moves in the direction of the spinning station to be maintained. From this, the control can calculate the expected travel time of the maintenance device until it reaches the spinning station to be serviced and cause the maintenance device to open the housing of the spinning station in advance of reaching the spinning station. The spinning station can wait for the maintenance device with the housing open. For this purpose, the control must be configured in a suitable manner.

Außerdem kann in der Steuerung ein Zeitwert hinterlegt sein, der angibt, wie lange es dauert, die Spinnstelle zu öffnen. Es ist damit möglich, eine Position der herannahenden Wartungseinrichtung zu berechnen, bei deren Erreichen das Öffnen des Gehäuses veranlasst wird. Dadurch ist das Öffnen gerade abgeschlossen, wenn die Wartungseinrichtung die Spinnstelle erreicht. Bei noch laufender Produktion an der zu wartenden Spinnstelle wird dadurch an der Spinnstelle solange wie möglich produziert und es wird die Zeit verkürzt, in der die Spinnstelle still steht.In addition, a time value can be stored in the control which indicates how long it takes to open the spinning position. It is thus possible to calculate a position of the approaching maintenance facility which, when it is reached, causes the housing to be opened. As a result, the opening is just completed when the maintenance device reaches the spinning station. While production is still running at the spinning station to be serviced, production is carried out at the spinning station for as long as possible and the time in which the spinning station is stationary is shortened.

Ebenfalls vorteilhaft ist es, wenn ein Umgebungsbereich der zu wartenden Spinnstelle definiert wird und mit Hilfe der Steuerung der Spinnmaschine detektiert wird, ob sich die Wartungseinrichtung in dem Umgebungsbereich der Spinnstelle befindet. Das Öffnen des Gehäuses wird nur und erst dann veranlasst, wenn sich die Wartungseinrichtung, oder im Falle mehrerer Wartungseinrichtungen eine der Wartungseinrichtungen, in dem Umgebungsbereich befindet und somit ein baldiges Vorbeifahren der Wartungseinrichtung absehbar ist. Ein unnötiges oder verfrühtes Öffnen des Gehäuses kann dadurch vermieden werden.It is also advantageous if an area around the spinning station to be serviced is defined and, with the aid of the control of the spinning machine, it is detected whether the maintenance device is located in the area around the spinning station. The opening of the housing is only initiated when the maintenance device, or in the case of several maintenance devices, one of the maintenance devices, is in the surrounding area and it is therefore foreseeable that the maintenance facility will soon pass. Unnecessary or premature opening of the housing can thus be avoided.

Daneben ist es vorteilhaft, wenn zur Durchführung einer Präventivwartung der Spinnstelle, insbesondere einer präventiven Rotorreinigung, die Spinnstelle gestoppt wird und das Öffnen des Gehäuses der Spinnstelle veranlasst wird, sobald die Wartungseinrichtung oder eine von mehreren Wartungseinrichtungen in dem Umgebungsbereich der Spinnstelle detektiert wird. Auch hierzu muss die Steuerung der Spinnmaschine in geeigneter Weise konfiguriert sein. Dabei kann auch der Zeitpunkt der letzten Wartung mit berücksichtigt werden und nur, wenn dieser schon länger zurückliegt, wird beim Vorbeifahren der Wartungseinrichtung das Öffnen der Spinnstelle und der anschließenden Wartungsvorgang, insbesondere die Präventivreinigung des Spinnrotors, eingeleitet.In addition, it is advantageous if, in order to carry out preventive maintenance of the spinning station, in particular preventive rotor cleaning, the spinning station is stopped and the housing of the spinning station is opened as soon as the maintenance device or one of several maintenance devices is detected in the vicinity of the spinning station. For this, too, the control of the spinning machine must be configured in a suitable manner. The time of the last maintenance can also be taken into account and only if it was a long time ago, the opening of the spinning position and the subsequent maintenance process, in particular the preventive cleaning of the spinning rotor, are initiated when the maintenance facility is passed.

Vorteilhaft ist es ferner, wenn bei Unterbrechung der Produktion der Spinnstelle, beispielsweise einem Fadenbruch, überprüft wird, ob sich die Wartungseinrichtung in dem Umgebungsbereich befindet. Die Überprüfung kann ebenfalls mittels der Steuerung der Spinnmaschine erfolgen. Bei sich in dem Umgebungsbereich dieser Spinnstelle befindlicher Wartungseinrichtung wird diese für die Wartung zu der betreffenden Spinnstelle beordert, die Wartung durchgeführt und erst anschließend die Produktion wieder aufgenommen, insbesondere ein Faden wieder angesponnen. Diese Ausführung ist somit insbesondere bei einer Spinnmaschine vorteilhaft, welche über eine arbeitsstelleneigene Anspinnvorrichtung verfügt. Ist nach einer Unterbrechung der Produktion eine Wartungseinrichtung in der Nähe, d.h. mit kurzem Fahrtweg verfügbar, so kann eine Wartung, insbesondere das Reinigen des Spinnrotors im Falle einer Rotorspinnmaschine, mit nur geringem Zeitaufwand vor der Wiederaufnahme der Produktion durchgeführt werden. Ist hingegen keine Wartungseinrichtung in der Nähe, so wird die Produktion sofort und ohne Wartung wieder aufgenommen, um die Stillstandszeit der Spinnstelle so kurz wie möglich zu halten.It is also advantageous if, when the production of the spinning station is interrupted, for example a thread break, a check is made as to whether the maintenance device is located in the surrounding area. The check can also be carried out by means of the control of the spinning machine. If the maintenance device is located in the vicinity of this spinning station, it is ordered to the relevant spinning station for maintenance, the maintenance is carried out and only then is production resumed, in particular a thread is spun again. This embodiment is therefore particularly advantageous in a spinning machine which has its own piecing device. If, after an interruption in production, a maintenance facility is available nearby, ie with a short travel distance, maintenance, in particular cleaning of the spinning rotor in the case of a rotor spinning machine, can be carried out in a very short time before production is resumed. If, on the other hand, there is no maintenance facility in the vicinity, production starts immediately and without Maintenance resumed in order to keep the downtime of the spinning unit as short as possible.

Vorteilhaft ist es, wenn nach der Wartung der Spinnstelle das Gehäuse der Spinnstelle selbsttätig durch das Verschlussmittel der Spinnstelle geschlossen wird. Das Schließen kann dabei unabhängig von der Position der Wartungseinrichtung erfolgen, also beispielsweise bereits zu einem Zeitpunkt, zu dem die Wartungseinrichtung noch vor der Spinnstelle positioniert ist.It is advantageous if, after the maintenance of the spinning station, the housing of the spinning station is automatically closed by the closure means of the spinning station. The closing can take place independently of the position of the maintenance device, that is to say for example already at a point in time at which the maintenance device is still positioned in front of the spinning station.

Besonders vorteilhaft ist es jedoch, wenn nach der Wartung der Spinnstelle die Wartungseinrichtung ihre Weiterfahrt aufnimmt und das Gehäuse der Spinnstelle erst danach selbsttätig durch das Verschlussmittel der Spinnstelle geschlossen wird und die Produktion an der Spinnstelle wieder aufgenommen wird. Die Wartungseirichtung kann somit bereits die nächste Sinnstelle anfahren und warten, was die Produktivität der Spinnmaschine weiter steigert.However, it is particularly advantageous if, after the maintenance of the spinning station, the maintenance device continues its journey and the housing of the spinning station is only then closed automatically by the locking means of the spinning station and production at the spinning station is resumed. The maintenance device can therefore already move to the next point of meaning and wait, which further increases the productivity of the spinning machine.

In einer alternativen Ausführung ist es jedoch auch möglich, dass die Wartungseinrichtung den schnellen Vorgang des Schließens der Spinnstelle noch übernimmt, bevor sie ihre Weiterfahrt aufnimmt.In an alternative embodiment, however, it is also possible for the maintenance device to take over the fast process of closing the spinning station before it starts moving on.

In einer vorteilhaften Weiterbildung der Erfindung wird dabei das Wiederanspinnen eines Fadens nach dem selbsttätigen Schließen des Gehäuses durch eine spinnstelleneigene Anspinnvorrichtung durchgeführt. Dadurch kann die Spinnmaschine insgesamt schneller gewartet werden, so dass die Leistungsfähigkeit der Spinnmaschine steigt.In an advantageous further development of the invention, the re-spinning of a thread after the automatic closing of the housing is carried out by a spinning station's own piecing device. As a result, the spinning machine can be serviced more quickly overall, so that the efficiency of the spinning machine increases.

Ebenfalls ist es von Vorteil, wenn das Verschlussmittel als Aktoreinen Magnetschalter, einen pneumatischen und/oder einen hydraulischen Kolben und/oder einen Elektromotor umfasst, der das Gehäuse öffnet und/oder schließt.It is also advantageous if the closure means comprises, as an actuator, a magnetic switch, a pneumatic and / or a hydraulic piston and / or an electric motor which opens and / or closes the housing.

Weitere Vorteile der Erfindung sind in den nachfolgenden Ausführungsbeispielen beschrieben. Es zeigen:

Figur 1
eine schematische Ansicht einer Spinnmaschine mit einer Vielzahl an Spinnstellen und einer verfahrbaren Wartungseinrichtung, sowie
Figur 2
eine schematische Seitenansicht einer Spinnstelle mit einem Verschlussmittel.
Further advantages of the invention are described in the following exemplary embodiments. Show it:
Figure 1
a schematic view of a spinning machine with a plurality of spinning stations and a movable maintenance device, and
Figure 2
a schematic side view of a spinning station with a closure means.

Figur 1 zeigt eine schematische Ansicht einer Spinnmaschine 1 mit einer Vielzahl an Spinnstellen 2 (wobei der Einfachheit halber nur eine Spinnstelle 2 mit einem Bezugszeichen versehen ist) und einer verfahrbaren Wartungseinrichtung 3. Die Wartungseinrichtung 3 ist auf einer Schiene 4 in einer Verfahrrichtung 6 verfahrbar angeordnet. Vorzugsweise erstreckt sich die Schiene 4 wie vorliegend dargestellt um die Spinnstellen 2 herum, so dass die Wartungseinrichtung 3 von einer Seite der Spinnmaschine 1 auf die andere Seite der Spinnmaschine 1 gelangen kann. Figure 1 shows a schematic view of a spinning machine 1 with a plurality of spinning stations 2 (for the sake of simplicity only one spinning station 2 is provided with a reference number) and a movable maintenance device 3. The maintenance device 3 is arranged on a rail 4 so that it can be moved in a direction of travel 6. The rail 4 preferably extends around the spinning stations 2, as shown here, so that the maintenance device 3 can move from one side of the spinning machine 1 to the other side of the spinning machine 1.

Bei den gegenwärtig üblichen Spinnmaschinen 1 ist es so, dass eine Abdeckung 5 (hier beispielhaft an der Spinnstelle 2 dargestellt) eines Gehäuses 8 der Spinnstellen 2 zur Wartung von einem Wartungspersonal oder von der Wartungseinrichtung 3 geöffnet wird. Die Abdeckung 5 des Gehäuses 8 der Spinnstelle 2 ist in einer Schwenkrichtung 7 schwenkbar, so dass das Gehäuse 8 der Spinnstelle 2 geöffnet und/oder geschlossen werden kann. Das Öffnen der Abdeckung 5 durch das Wartungspersonal ist dabei sehr zeitaufwändig. Ebenfalls ist das Öffnen der Abdeckung 5 durch die Wartungseinrichtung 3 noch recht zeitaufwändig, so dass die Produktivität der Spinnmaschine 1 verringert ist. Im Falle einer Rotorspinnmaschine ist die Abdeckung 5 dabei an einem Gehäuse 8 des Spinnrotors 10 (s. Figur 2) angeordnet, das geöffnet wird.In the currently common spinning machines 1, a cover 5 (shown here by way of example at the spinning station 2) of a housing 8 of the spinning stations 2 is opened for maintenance by maintenance personnel or by the maintenance device 3. The cover 5 of the housing 8 of the spinning station 2 can be pivoted in a pivoting direction 7, so that the housing 8 of the spinning station 2 can be opened and / or closed. The opening of the cover 5 by the maintenance personnel is very time-consuming. The opening of the cover 5 by the maintenance device 3 is also still quite time-consuming, so that the productivity of the spinning machine 1 is reduced. In the case of a rotor spinning machine, the cover 5 is attached to a housing 8 of the spinning rotor 10 (see FIG. Figure 2 ) that is opened.

Bei dem erfindungsgemäßen Verfahren wird zur Wartung der Spinnmaschine 1 das Gehäuse 8 der Spinnstelle 2 selbstständig zur Wartung geöffnet. Zusätzlich oder alternativ wird das Gehäuse 8 der Spinnstelle 2 nach der Wartung auch wieder selbstständig geschlossen. Das Öffnen und/oder das Schließen wird dabei von einem Verschlussmittel 9 ausgeführt, welches in Figur 2 dargestellt ist.In the method according to the invention, the housing 8 of the spinning station 2 is automatically opened for maintenance in order to maintain the spinning machine 1. Additionally or alternatively, the housing 8 of the spinning station 2 is also automatically closed again after the maintenance. The opening and / or the closing is carried out by a closure means 9, which is shown in FIG Figure 2 is shown.

Figur 2 zeigt eine schematische Seitenansicht einer Spinnstelle 2 mit einem Verschlussmittel 9 zum Öffnen und/oder Schließen des Gehäuses 8 der Spinnstelle 2. Die vorliegende Spinnstelle 2 ist als Spinnstelle 2 einer Rotorspinnmaschine ausgeführt und weist als Spinnelement einen Spinnrotor 10 auf, der in dem Gehäuse 8 drehbar gelagert ist. Der durch den Spinnrotor 10 produzierte Faden F wird dabei durch eine Fadenabzugsdüse 11 abgezogen und einer hier nicht dargestellten Spulvorrichtung zugeführt. Ebenfalls erkennbar ist die Abdeckung 5 zum Verschließen des Gehäuses 8. Das Öffnen und das Schließen des Gehäuses 8 erfolgt mittels des Verschlussmittels 9, das vorliegend eine Gewindespindel mit einem Antriebsmotor umfasst und die Abdeckung von dem Gehäuse 8 wegschwenkt bzw. an dieses heranzieht. Nachdem das Gehäuse 8 mittels des Verschlussmittels 9 geöffnet wurde, kann die Wartungseinrichtung 3 die Spinnstelle warten, insbesondere den Spinnrotor 10 der Spinnstelle 2 reinigen. Figure 2 shows a schematic side view of a spinning station 2 with a closure means 9 for opening and / or closing the housing 8 of the spinning station 2. The present spinning station 2 is designed as a spinning station 2 of a rotor spinning machine and has a spinning rotor 10 as a spinning element, which rotates in the housing 8 is stored. The thread F produced by the spinning rotor 10 is drawn off by a thread draw-off nozzle 11 and fed to a winding device (not shown here). The cover 5 for closing the housing 8 can also be seen. The opening and closing of the housing 8 takes place by means of the closing means 9, which in the present case comprises a threaded spindle with a drive motor and swings the cover away from the housing 8 or pulls it towards it. After the housing 8 has been opened by means of the closure means 9, the maintenance device 3 can service the spinning station, in particular clean the spinning rotor 10 of the spinning station 2.

Wenn die Wartungseinrichtung 3 die Spinnstelle 2 nicht mehr selbst öffnen muss, kann die Wartungseinrichtung 3 währenddessen Wartungsarbeiten an einer anderen Spinnstelle 2 abschließen oder die Zeit für den Fahrtweg zur nächsten zu wartenden Spinnstelle 2 nutzen. Dadurch können insgesamt mehr Spinnstellen 2 gewartet werden, so dass die Produktivität der Spinnmaschine 1 steigt.If the maintenance device 3 no longer has to open the spinning station 2 itself, the maintenance device 3 can conclude maintenance work on another spinning station 2 or use the time to travel to the next spinning station 2 to be serviced. As a result, a total of more spinning stations 2 can be serviced, so that the productivity of the spinning machine 1 increases.

Dabei kann vorteilhafterweise die Abdeckung 5 der Spinnstelle 2 bereits geöffnet werden, wenn vorhersehbar ist, dass die Wartungseinrichtung 3 an der Spinnstelle 2 vorbei fährt. Beispielsweise umfasst die Spinnmaschine 1 eine hier nicht gezeigte Steuerung, in der hinterlegt ist, dass die Spinnstelle 2 eine längere Zeit nicht mehr gewartet wurde. Außerdem erkennt die Steuerung, dass sich die Wartungseinrichtung 3 in Richtung der Spinnstelle 2 bewegt. Es kann nun eine Präventivwartung der Spinnstelle 2 veranlasst werden, wobei die Spinnstelle 2 gestoppt wird, das Gehäuse 8 der Spinnstelle 2 geöffnet wird und die Spinnstelle 2 mit bereits geöffnetem Gehäuse 8 auf die Wartungseinrichtung 3 wartet. Daraufhin kann die Wartungseinrichtung 3 die Spinnstelle 2 warten und anschließend unmittelbar zur nächsten zu wartenden Spinnstelle 2 weiter fahren.In this case, the cover 5 of the spinning station 2 can advantageously already be opened when it is foreseeable that the maintenance device 3 will drive past the spinning station 2. For example, the spinning machine 1 comprises a Control, not shown here, in which it is stored that the spinning station 2 has not been serviced for a long time. In addition, the control recognizes that the maintenance device 3 is moving in the direction of the spinning station 2. Preventive maintenance of the spinning station 2 can now be initiated, the spinning station 2 being stopped, the housing 8 of the spinning station 2 being opened and the spinning station 2 waiting for the maintenance device 3 with the housing 8 already open. The maintenance device 3 can then wait for the spinning station 2 and then immediately move on to the next spinning station 2 to be serviced.

Vorzugsweise beinhaltet die Wartungstätigkeit der Wartungseinrichtung 3 die Reinigung des Spinnrotors. Die Spinnstelle 2 wird dabei zunächst stillgesetzt und hält den Faden fest, um ihn nach der Rotorreinigung wieder anspinnen zu können. Nach erfolgter Rotorreinigung schließt sich die Spinnstelle 2 wieder selbstständig und spinnt den Faden F selbstständig wieder an. Besonders vorteilhaft ist es daher, wenn die Spinnstelle 2 über eine eigene Anspinnvorrichtung verfügt. Grundsätzlich ist es jedoch ebenfalls möglich, dass die Wartungseinrichtung 3 auch andere Tätigkeiten ausführt, wie beispielsweise den Spinnrotor auszutauschen oder einen Faden anzuspinnen.The maintenance activity of the maintenance device 3 preferably includes cleaning the spinning rotor. The spinning station 2 is initially stopped and holds the thread so that it can be spun again after the rotor has been cleaned. After the rotor has been cleaned, the spinning station 2 closes again automatically and spins the thread F again automatically. It is therefore particularly advantageous if the spinning station 2 has its own piecing device. In principle, however, it is also possible for the maintenance device 3 to also carry out other activities, such as, for example, replacing the spinning rotor or spinning a thread.

Das Öffnen der Abdeckung 5 kann dabei so veranlasst werden, dass bei Ankunft der Wartungseinrichtung 3 an der Spinnstelle 2 das Öffnen der Abdeckung 5 des Gehäuses 8 gerade abgeschlossen ist. Die Spinnstelle 2 kann damit noch so lange wie möglich produzieren. Außerdem kann die Wartungseinrichtung 3 dann sofort mit der Wartung beginnen.The opening of the cover 5 can be initiated in such a way that the opening of the cover 5 of the housing 8 has just been completed when the maintenance device 3 arrives at the spinning station 2. The spinning station 2 can thus continue to produce as long as possible. In addition, the maintenance facility 3 can then begin maintenance immediately.

Tritt an der Spinnstelle 2 hingegen ein Fadenbruch auf, so kann die Steuerung, noch bevor die Spinnstelle 2 den Faden wieder selbstständig anspinnt, die Wartungseinrichtung 3 zur Spinnstelle 2 beordern. Dabei wird vorteilhafterweise vorab ein Umgebungsbereich der Spinnstelle 2, beispielsweise ein Bereich im Abstand von bis zu fünf Spinnstellen 2, definiert. Der Umgebungsbereich kann natürlich auch in Form einer maximal zulässigen Zeitdauer für den Fahrtweg der Wartungseinrichtung 3 zu der Spinnstelle 2 definiert werden. Im Falle eines Fadenbruchs wird dann zunächst mittels der Steuerung der Spinnmaschine 1 überprüft, ob sich eine Wartungseinrichtung 3 in dem Umgebungsbereich der Spinnstelle 2 befindet. Ist dies der Fall, so öffnet sich die Spinnstelle 2 bereits selbstständig, so dass die Wartungseinrichtung 3 unmittelbar nach Erreichen der Spinnstelle 2 die Wartungsarbeiten, insbesondere die Rotorreinigung, aufnehmen kann. Ist hingegen keine Wartungseinrichtung 3 in dem Umgebungsbereich der Spinnstelle 2 vorhanden, so spinnt die Spinnstelle den Faden F mittels ihrer eigenen Anspinnvorrichtung wieder an, ohne dass zuvor eine Rotorreinigung durchgeführt wird, da die Spinnstelle ansonsten zu lange unproduktiv stillstehen würde.If, on the other hand, a thread break occurs at the spinning station 2, the control can order the maintenance device 3 to the spinning station 2 even before the spinning station 2 independently spins the thread again. An area surrounding the spinning station 2, for example an area at a distance of up to five spinning stations 2, is advantageously defined in advance. The surrounding area can of course also be in the form of a maximum permissible period of time can be defined for the travel route from the maintenance facility 3 to the spinning station 2. In the event of a thread break, it is then first checked by means of the control of the spinning machine 1 whether a maintenance device 3 is located in the vicinity of the spinning station 2. If this is the case, the spinning station 2 already opens automatically, so that the maintenance device 3 can start the maintenance work, in particular the rotor cleaning, immediately after reaching the spinning station 2. If, on the other hand, there is no maintenance device 3 in the vicinity of the spinning station 2, the spinning station spins the thread F again using its own piecing device without cleaning the rotor beforehand, since the spinning station would otherwise be idle for too long in an unproductive manner.

Die vorliegende Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsbeispiele beschränkt. Insbesondere könnte die Spinnmaschine, auch wenn die Erfindung anhand einer Rotorspinnmaschine beschrieben wurde, auch als Luftspinnmaschine ausgeführt sein. Abwandlungen im Rahmen der Patentansprüche sind ebenso möglich wie eine Kombination der Merkmale, auch wenn diese in unterschiedlichen Ausführungsbeispielen dargestellt und beschrieben sind.The present invention is not limited to the illustrated and described exemplary embodiments. In particular, the spinning machine could also be designed as an air-jet spinning machine, even if the invention was described with reference to a rotor spinning machine. Modifications within the scope of the patent claims are just as possible as a combination of the features, even if these are shown and described in different exemplary embodiments.

BezugszeichenlisteList of reference symbols

11
SpinnmaschineSpinning machine
22
SpinnstelleSpinning position
33
WartungseinrichtungMaintenance facility
44th
Schienerail
55
Abdeckungcover
66th
VerfahrrichtungDirection of travel
77th
SchwenkrichtungSwivel direction
88th
Gehäusecasing
99
VerschlussmittelClosure means
1010
SpinnrotorSpinning rotor
1111
FadenabzugsdüseThread take-off nozzle
FF.
Fadenthread

Claims (15)

  1. Method for maintaining spinning units (2) of a spinning machine (1), whereas the spinning machine (1) features a multiple number of spinning units (2) arranged next to one another and at least one maintenance device (3), which is movable along the spinning units (2) and by means of which the spinning units (2) are maintained, whereas, prior to the maintenance of a spinning unit (2), a housing (8) of the spinning unit (2) is opened, the spinning unit (2) is maintained by the maintenance device (3) and, after the maintenance of the spinning unit (2), the housing (8) is closed again, characterized in that the housing (8) of the spinning unit (2) is autonomously opened for maintenance with the assistance of a sealing device (9) arranged at the spinning unit (2) and/or is autonomously closed after maintenance, whereas the sealing device (9) comprises an actuator, which opens and/or closes the housing (8).
  2. Method according to the previous claim, characterized in that maintenance comprises the cleaning of a spinning device, in particular a spinning rotor (10) and/or a thread draw-off nozzle (11).
  3. Method according to one of the preceding claims, characterized in that the housing (8) of the spinning unit (2) to be maintained is opened before the maintenance device (3) is positioned at the spinning unit (2).
  4. Method according to one of the preceding claims, characterized in that , with the assistance of a control unit of the spinning machine (1), the approach of the maintenance device (3) at the spinning unit (2) to be maintained is detected and the opening of the housing (8) of the spinning unit (2) to be maintained is brought about, such that the housing (8) is open when the maintenance device (3) has reached the spinning unit (2).
  5. Method according to one of the preceding claims, characterized in that a surrounding area of the spinning unit (2) to be maintained is defined and, with the assistance of the control unit of the spinning machine (1), whether the maintenance device (3) is located in the surrounding area of the spinning unit (2) is detected.
  6. Method according to the previous claim, characterized in that , in order to carry out preventive maintenance of the spinning unit (2), the spinning unit (2) is stopped and the opening of the housing (8) of the spinning unit (2) is brought about as soon as the maintenance device (3) is detected in the surrounding area of the spinning unit (2).
  7. Method according to claim 5, characterized in that , in the event of an interruption of the production of the spinning unit (2), in particular a thread break, there is an examination of whether the maintenance device (3) is located in the surrounding area and, when the maintenance device (3) is located in the surrounding area, it is summoned for maintenance at the spinning unit (2) and carries out the maintenance, and only then is production resumed; in particular, a thread is pieced on again.
  8. Method according to one of the preceding claims, characterized in that , after the maintenance of the spinning unit (2), the maintenance device (3) assumes its continued travel, and the housing (8) of the spinning unit (2) is then closed.
  9. Method according to one of the preceding claims 1 - 7, characterized in that , after the maintenance of the spinning unit (2), the maintenance device (3) closes the housing (8) of the spinning unit (2) and only then assumes its continued travel.
  10. Method according to the previous claim, characterized in that , a piecing of the thread is carried out by a piecing device associated to the spinning unit.
  11. Method according to one of the preceding claims, characterized in that , the actuator is a magnetic switch, a pneumatic and/or a hydraulic piston and/or an electric motor.
  12. Spinning machine (1) for carrying out the method according to one of the preceding claims, whereas the spinning machine (1) features a multiple number of spinning units (2) arranged next to one another and at least one maintenance device (3), which is movable along the spinning units (2) and by means of which the spinning units (2) can be maintained, whereas each spinning unit features a housing (8) that is closed during the spinning process and can be opened to maintain the spinning unit (2), characterized in that , at the spinning unit (2), a sealing device (9) is arranged for autonomously opening the housing (8) before maintenance by the maintenance device (3) and/or for autonomously closing the housing (8) after maintenance by the maintenance device (3), whereas the sealing device (9) comprises an actuator, which opens and/or closes the housing (8).
  13. Spinning machine according to the preceding claim, characterized in that the spinning machine (1) and/or the spinning unit (2) features a control unit that detects the approach of the maintenance device (3) at the spinning unit (2) to be maintained, and controls the sealing device (9) in such a manner that the housing (8) is open when the maintenance device (3) reaches the spinning unit (2).
  14. Spinning machine according to one of the two preceding claims, characterized in that the spinning unit (2) features a piecing device associated to the spinning unit.
  15. Spinning machine according to one of the claims 12 - 14, characterized in that the actuatorparticular is a magnetic switch, a pneumatic and/or a hydraulic piston and/or an electric motor.
EP18151128.8A 2017-01-24 2018-01-11 Method for the maintenance of spinning units of a spinning machine and spinning machine Active EP3351663B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017101317.2A DE102017101317A1 (en) 2017-01-24 2017-01-24 Method for the maintenance of spinning stations of a spinning machine and spinning machine

Publications (2)

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EP3351663A1 EP3351663A1 (en) 2018-07-25
EP3351663B1 true EP3351663B1 (en) 2021-03-03

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US (1) US20180209077A1 (en)
EP (1) EP3351663B1 (en)
CN (2) CN108342797B (en)
DE (1) DE102017101317A1 (en)

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CN113463230A (en) * 2021-08-04 2021-10-01 南通双弘纺织有限公司 Segmented roving cleaning system and cleaning method thereof

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Also Published As

Publication number Publication date
CN108342797A (en) 2018-07-31
CN115323543B (en) 2024-02-27
US20180209077A1 (en) 2018-07-26
CN115323543A (en) 2022-11-11
EP3351663A1 (en) 2018-07-25
CN108342797B (en) 2022-08-23
DE102017101317A1 (en) 2018-07-26

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