EP3153612A1 - Procédé de préparation d'un penne pour commencer à filer sur un dispositif de filature à rotor d'une machine à filer à rotor et machine à filer à rotor - Google Patents

Procédé de préparation d'un penne pour commencer à filer sur un dispositif de filature à rotor d'une machine à filer à rotor et machine à filer à rotor Download PDF

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Publication number
EP3153612A1
EP3153612A1 EP16192712.4A EP16192712A EP3153612A1 EP 3153612 A1 EP3153612 A1 EP 3153612A1 EP 16192712 A EP16192712 A EP 16192712A EP 3153612 A1 EP3153612 A1 EP 3153612A1
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EP
European Patent Office
Prior art keywords
rotor
spinning
yarn
yarn end
vacuum channel
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.)
Granted
Application number
EP16192712.4A
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German (de)
English (en)
Other versions
EP3153612B1 (fr
Inventor
Frank Baier
Jiri Sloupensky
Milos Ferkl
Jiri Kutlvasr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rieter Ingolstadt GmbH
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Rieter Ingolstadt GmbH
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Publication date
Application filed by Rieter Ingolstadt GmbH filed Critical Rieter Ingolstadt GmbH
Publication of EP3153612A1 publication Critical patent/EP3153612A1/fr
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Publication of EP3153612B1 publication Critical patent/EP3153612B1/fr
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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
    • D01H4/48—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
    • 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
    • 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

Definitions

  • the present invention relates to a method for preparing a yarn end for piecing on a rotor spinning device of a rotor spinning machine, wherein the rotor spinning machine with a lid closable and acted upon by a vacuum duct with a negative pressure rotor housing, a rotatably mounted in the rotor housing and rotating during the spinning operation at an operating speed Spinning rotor and a discharge nozzle has.
  • the yarn end to be prepared is introduced into the vacuum channel of the rotor spinning device and interrupted by a separating structure of the open edge of the spinning spinning rotor and thereby prepared for piecing.
  • the invention relates to a corresponding rotor spinning machine with at least one such rotor spinning device.
  • a yarn end In order to be able to start the spinning process when spinning on a rotor spinning machine or to be able to resume the spinning process after interrupting the spinning process, for example due to a yarn breakage, a quality cut or after the rotor spinning machine has stopped, a yarn end must always be prepared for the piecing process. For this purpose, it is necessary to recountfasern the yarn end to align the individual fibers of the yarn end for the piecing and free of short fibers. The yarn end prepared for piecing must then be returned to the spinning rotor with a length as precisely as possible, in order to be able to reconnect with the fiber material deposited there.
  • the yarn end by means of the edge region of the spinning spinning rotor.
  • the yarn is brought to this at least partially open rotor housing in the vicinity of the open edge of the spinning rotor.
  • the spinning rotor is now set in rotation and the lid of the rotor housing closed, so that the yarn end is now pressed against the open edge of the rotor and cut.
  • the edge of the spinning rotor is provided for this purpose with a roughening or abrasive.
  • the yarn is introduced into the closed rotor housing, wherein a single driven rotor is displaced in its axial direction.
  • the rotor After insertion of the yarn end, the rotor is in turn shifted back into its operating position and set in rotation so that the run-up of the rotor results in an interruption of the yarn end.
  • the object of the present invention is therefore to propose a method for yarn end preparation and a corresponding rotor spinning machine, by means of which even in various applications a good and uniform yarn end preparation can be achieved.
  • the yarn end to be prepared is introduced into the vacuum passage of the rotor spinning device and is interrupted by a separation structure of the open edge of the spinning spinning rotor and thereby prepared for piecing.
  • the spinning rotor is driven during the interruption of the yarn end with a defined Garnendenvortungsnaviere.
  • the yarn end preparation speed is either equal to the operating speed of the spinning rotor or less than the operating speed of the spinning rotor.
  • a rotor spinning machine with at least one rotor spinning device with a closable with a lid and acted upon by a vacuum channel with a negative pressure rotor housing, with a rotatably mounted in the rotor housing spinning rotor and a discharge nozzle, wherein an edge of the spinning rotor, a separation structure for interrupting and preparing a in the vacuum channel introduced yarn end for piecing, includes for carrying out the method for yarn end preparation, a corresponding control unit.
  • the Garnendenvor washerswarriage less than 80%, preferably less than 65% and more preferably less than 55% of the operating speed and is preferably less than a piecing speed of the spinning rotor. Too fast a severing of the yarn end, in which sufficient fuzz can be achieved, is thereby avoided.
  • a Garnendenvor washerswiere of less than 55% of the operating speed and safety aspects are taken into account when the Garnendenvort is performed at partially open rotor housing.
  • the cover of the rotor housing before insertion of the yarn end in the vacuum channel in an intermediate position, in particular a semi-open position is transferred, and the yarn to be prepared yarn is introduced with the spinning rotor and semi-open rotor housing in the vacuum channel. Thereafter, the spinning rotor is rotated and driven at the yarn end preparation speed for the predetermined period of time, the yarn is interrupted. Only after the interruption of the yarn end, the lid is finally transferred to a closed position.
  • the cover of the rotor housing is for this purpose at least in a closed position, an open position and an intermediate position, in particular a semi-open position, brought or between these positions back and forth feasible.
  • the yarn end prepared for piecing is already returned to the fiber collecting groove of the spinning rotor by closing the lid or moving the lid from the intermediate position to the closed position.
  • the spinning rotor is each driven for a predetermined period of time with the defined Garnendenvorrungsitchiere for Garnendenvorrung.
  • the predetermined period of time is determined in such a way that, on the one hand, a reliable severing of the thread end within this period of time can be assumed and, on the other hand, the piecing process can be continued quickly in order not to adversely affect the machine efficiency.
  • the predetermined period of time is set depending on a type of yarn produced and / or a type of spinning rotor.
  • the controlled shutdown of the rotor spinning device is particularly advantageous in connection with the Garnendenvortung through the open edge of the spinning rotor, since the yarn completely in its regular yarn course and can be sucked directly from its end position within the rotor spinning device or within the discharge nozzle in the vacuum channel, which continues to contribute to an increase in machine efficiency.
  • An advantageous development of the method provides that the yarn end unwound after controlled braking against its regular take-off direction of a coil is inserted into the vacuum channel of the rotor spinning device and rewound until a faulty piece of yarn is completely sucked into the vacuum channel, and then the yarn end is prepared for piecing.
  • the defective piece of yarn can thus be sucked, separated and disposed of directly through the vacuum channel.
  • the yarn end preparation for the re-spinning can be carried out at the same time as the cutting of the defective piece of yarn.
  • the winding device and the extraction device are advantageously driven counter to their regular direction of rotation, the extraction device being driven at a higher speed than the winding device.
  • the amount of speed refers to the peripheral speed of the take-off device or the winding device and thus to the speed at which the yarn is transported. Due to the faster drive of the take-off device, the yarn to be spooled is subjected to a tensioning distortion, whereby sticking of the yarn on the spool and any possible back-loops caused thereby can be avoided.
  • the winding device is provided for rewinding with a soft start control.
  • the spinning rotor is first brought from its operating speed to a braking speed which is lower than the operating speed and driven for a predetermined period of time with the braking speed. Only then is the spinning rotor braked to a standstill. Thus, even during the controlled deceleration, a regular yarn can still be produced or at least the length of a faulty yarn piece produced during the controlled braking can be reduced. It is particularly advantageous if the Abbremsnaviere is equal to or less than the piecing speed of the spinning rotor, as this prevail essentially the same operating conditions as during piecing.
  • the spinning rotor is subjected to a cleaning, in particular a pneumatic cleaning.
  • a cleaning in particular a pneumatic cleaning.
  • the advantage here is that the cleaning of the spinning rotor can also be done in the intermediate position and thus time can be saved, which in turn benefits the machine use effect.
  • a pneumatic cleaning of course, a mechanical cleaning by means of a brush or a scraper is possible.
  • the vacuum level in the vacuum channel is adjustable.
  • an adjustment of the vacuum level to the type of yarn produced can be made. For example, in yarns which are more difficult to suck in, the vacuum level can be increased.
  • the vacuum level in the vacuum channel is increased at least briefly before the yarn end is introduced into the vacuum channel. The insertion of the yarn end into the vacuum channel can be facilitated thereby.
  • the yarn end is preferably moved oscillating in its longitudinal direction during its interruption by means of a take-off device of the rotor spinning device.
  • the length of the prepared yarn end can also be adjusted by means of the movement of the yarn end.
  • the yarn is fixed at standstill of the rotor spinning device by means of a withdrawal tube or a clamping device in the spinning device, in particular in the drawing-off nozzle.
  • the rotor spinning device has for this purpose, preferably with respect to the regular take-off direction of the yarn, a draw-off tube downstream of the draw-off nozzle and / or a clamping device arranged downstream of the draw-off nozzle. Slipping out of the yarn end of the rotor spinning device can thus be avoided even when turned off spinning device and not effective negative pressure.
  • a cover element is arranged on the rotor housing, which at least partially covers a gap between the rotor housing and the cover in the intermediate position of the cover. It is thereby possible, even with partially open lid in the rotor housing maintain a vacuum level.
  • the spinning rotor of the rotor spinning device is provided in at least a portion of its edge, preferably in two opposite portions of its edge, with a toothing or knurling. Due to the fact that only small portions of the edge are provided with the separation structure, any negative effects of the separation structure on the spin result and on the energy requirements of the spinning rotor can be largely avoided.
  • the input region of the vacuum channel is provided with at least one wear protection device, in particular a wear protection ring. Wear marks due to the action of the sucked yarn end can be avoided.
  • FIG. 1 shows a rotor spinning device 2 of a rotor spinning machine 1 in a schematic sectional view.
  • the rotor spinning device 2 has a rotor housing 3 in the usual manner, in which a spinning rotor 5 is rotatably mounted and rotates during operation of the rotor spinning device 2 at an operating speed.
  • the spinning rotor 5, a fiber material to be spinned F via a feed device 12 and a resolving device 21, where it is dissolved in individual fibers, supplied and stored in a fiber collecting groove 6 of the spinning rotor 5 in the form of a fiber ring. From there, it is bound in the end of the yarn G produced in the rotor spinning device 2.
  • the yarn produced in the spinning rotor 5 is likewise withdrawn via a draw-off nozzle 7 by means of a draw-off device 11, which in the present case is formed by two draw-off rolls, and wound onto a reel 14 by means of a winding device 13.
  • the rotor housing 3 is connected via a vacuum channel 8 to a central vacuum channel 22 of the rotor spinning machine 1 and is thereby acted upon by a spinning vacuum.
  • the rotor housing 3 is closed during the spinning operation by means of a cover 4.
  • the trigger nozzle 7 and, as shown in the present illustration, a trigger tube 16 is arranged.
  • the withdrawal tube 16 is not absolutely necessary, and instead of the withdrawal tube 16, only one twist-blocking element can be provided, which can also be formed integrally with the withdrawal nozzle 7.
  • the withdrawal tube 16 is advantageous in order to fix the yarn G in the event of an interruption of the spinning operation within the rotor spinning device 2, as will be explained below.
  • the cover 4 of the rotor housing 3 part of a pivot housing, which also covers the opening device 21 and possibly other devices of the rotor spinning device 2.
  • a separate cover 4 may be provided for the rotor housing 3.
  • the cover 4 is presently shown in solid lines in a closed position I. From this, the lid in an intermediate position II (shown in dashed lines) can be converted, in which both a cleaning of the spinning rotor 5 and a Garnendenvorrung and rewinding a faulty piece of yarn can take place. Furthermore, the lid 4 can be transferred to an open position III, in which it is possible to manually clean the spinning rotor 5 or remove it from the rotor spinning device 2.
  • the rotor spinning device 2 shown in the present case also has a yarn monitoring device 15, by means of which at least one parameter of the finished spun yarn G is monitored. If a yarn defect is detected by the yarn monitoring device 15, the spinning process is interrupted and the already produced yarn G is rewound to some extent in order to be able to remove the defective yarn piece.
  • the rotor spinning device 2 or the rotor spinning machine 1 a control unit 17, by means of which the various devices of the rotor spinning device 2 are controlled both during normal operation and during piecing.
  • the winding device 13, the yarn monitoring device 15, the take-off device 11, the spinning rotor 5 and the feed device 12 are signal-transmitting connected to the control unit 17, as shown by the dotted lines.
  • the preparation of a yarn end 9 for piecing is now based on the FIGS. 2 to 5 shown.
  • the method for preparing a yarn end 9 is first for a piecing after a planned interruption of Spinning operation with a controlled shutdown of the rotor spinning device 2 described. Such planned interruptions take place, for example, for maintenance purposes, for bobbin replacement, before the rotor spinning machine 1 is shut down or in the event of the detection of a yarn fault.
  • the devices involved in yarn production of the rotor spinning device 2, which in the present case the feed device 12, the trigger device 11 and the winding device 13 include controlled so slowed to a stop that the yarn G does not tear and runs on the coil 14, but up to Interruption of the spinning process is further produced.
  • the yarn end 9 is thus after the interruption of the spinning process at a defined position.
  • the devices 11, 12, 13 are braked such that the yarn end 9 is located inside the draw-off nozzle 7.
  • the rotor spinning device 2 or the rotor housing 3 is shown in a situation in which the spinning process has just been interrupted and the yarn end 9 is located inside the draw-off nozzle 7.
  • the cover 4 of the rotor housing 3 is still closed at this time.
  • the method for preparing a yarn end 9 for piecing is also applicable in the case of an unplanned interruption of the spinning operation, for example by a yarn breakage.
  • the yarn end 9 runs on the spool 14 and from there either by an operator or by an automatic maintenance device which can be arranged to be movable or stationary on the rotor spinning machine 1, and in the rotor spinning device 2, in this case through the exhaust pipe sixteenth , to be led back.
  • the yarn end 9 After the yarn end 9 has been sucked into the rotor spinning device 2, it is also approximately in the position shown.
  • the yarn end 9 both after a planned and after an unplanned interruption of the spinning operation, it is also possible for the yarn end 9 to be located at another point within the rotor spinning device 2, for example inside the withdrawal tube 16. Especially advantageous however, for the following sucking of the yarn end 9, the position within the drawing nozzle 7.
  • the yarn end 9 is located at the defined position within the discharge nozzle 7, it can be inserted into the vacuum channel 8, which in FIG. 3 is shown.
  • the cover 4 is moved from its closed position I into its intermediate position II, so that the yarn end 9 can be sucked into it by the action of the negative pressure in the vacuum channel 8.
  • a cover element 18 is arranged on the rotor housing 3 which at least partially covers the gap 19 between the rotor housing 3 and the cover 4 located in the intermediate position II.
  • a wear protection device 20 can be seen at the in FIG. 3 illustrated negative pressure channel 8 . This is presently designed as a wear protection ring made of a metal, which is inserted into the inlet region of the vacuum channel 8 at the transition to the rotor housing 3 in order to protect it from being cut by the yarn G during suction.
  • the yarn G is meanwhile removed from the spool 14, in the present case by means of the draw-off device 11, against the regular withdrawal direction AR (see FIG. Fig. 1 ).
  • the yarn end 9 now takes the in FIG. 3 shown course, in which it is held securely due to the negative pressure in the vacuum channel 8.
  • the yarn end 9 lies directly next to the open edge of the spinning rotor 5 or touches it straight so that now the yarn end preparation can be made.
  • 9 may be performed before sucking the yarn end still a rotor cleaning.
  • a blowing nozzle (not shown) are introduced into the rotor housing 3 to the fiber collecting groove 6 of the spinning rotor 5 blow out.
  • this is not absolutely necessary, since due to the gradual reduction of the feed hardly fibers in the fiber collecting groove 6 can deposit.
  • the spinning rotor 5 In order to interrupt the yarn end 9 and to prepare for piecing, the spinning rotor 5 is now set in rotation and driven for a certain period of time with a defined Garnendenvorrungswindiere. While the spinning rotor 5 is operated at an operating speed between about 80,000 rpm and 170,000 rpm, it is advantageous for yarn end preparation to provide a much lower yarn end preparation speed between 20,000 and 50,000 rpm per minute. In this way, on the one hand a secure interruption of the yarn end 9 and on the other hand sufficient fibrillation and alignment of the fibers can be ensured. On the other hand, if the yarn preparation speed is too fast, the yarn end 9 may be severed too quickly and thus insufficient yarn end preparation.
  • the period of time during which the spinning rotor 5 is driven for yarn end preparation may preferably be preset depending on the kind of the fiber material F used and the kind of the yarn G produced. Usually, the time for successful preparation of the yarn end 9 is about 5 seconds, but for more difficult to cut yarns G, such as coarse yarns, the time may be more than 5 seconds.
  • the yarn end 9 is further provided to move the yarn end 9 at least briefly during yarn preparation in its longitudinal direction by means of the take-off device 11, on the one hand to assist in interrupting the yarn end 9 and, on the other hand, to ensure a sufficient length of the prepared yarn end 9.
  • the extraction device 11 is driven to oscillate, depending on the type of yarn G and the desired length of the prepared Yarn 9 a movement between 2 mm and 10 mm can be performed.
  • yarn end preparation occurs upon detection of a yarn defect by the yarn monitoring device.
  • the rotor spinning device 2 controlled stoppages, so that the yarn end 9 in the in FIG. 2 is shown position.
  • the yarn end 9 is sucked back into the vacuum channel 8 with return of the yarn G and is located in the in FIG. 3 position shown.
  • the yarn G will continue to be opposite to the regular withdrawal direction AR (see FIG FIG. 1 ) unwound from the spool 14 and continuously sucked into the vacuum channel 8 until the defective piece of yarn is completely sucked into the vacuum channel 8.
  • the safe suction of the complete, faulty piece of yarn can be ensured, for example, by the number of revolutions of the take-off rolls of the take-off device 11.
  • the take-off device 11 is driven somewhat faster relative to the peripheral speed or the transport speed of the yarn G than the winding device 13, so that the yarn G is kept under tension and so-called back-loops, a rear winding of the yarn Garnes G when rewinding, can be avoided.
  • the winding device 13 is preferably provided with a soft start control, so that the spool 14 and thus the yarn G is not jerky, but gradually accelerated. It is therefore also advantageous if the speed of the yarn G is adjustable during rewinding.
  • the negative pressure level in the vacuum channel 8 is adjustable.
  • the vacuum level for example, for sucking the yarn ends 9 both for Garnendenvorrung and for rewinding to eliminate a yarn defect, to increase in the short term or to adapt to the nature of the yarn G.
  • the level of vacuum can be increased to keep these yarns taut and to facilitate interruption by means of the open edge of the spinning rotor.
  • the yarn end 9 is only necessary to transfer the lid 4 from the intermediate position II back into the closed position I.
  • the yarn end 9 is hereby dropped into the fiber collecting groove 6 of the spinning rotor 5 and can connect to the existing there due to the already re-starting feed fibers.
  • the possibly required additional length of the yarn end 9 can be provided by changing the position of the yarn end 9 when closing the lid 4.
  • a required additional yarn length to provide by a short-term drive of the trigger device 11 against the regular withdrawal direction AR.
  • the spinning rotor 5 is operated in a conventional manner with a reduced compared to the regular operating speed Anspinnnaviere, which may for example be about 60% to 80% of the operating speed.
  • Anspinnnaviere which may for example be about 60% to 80% of the operating speed.
  • FIG. 6 finally shows a plan view of the open edge of a spinning rotor 5, which is equipped with separation structures 10 for breaking and preparing a yarn end 9 for piecing.
  • the edge of the spinning rotor 5, arranged opposite one another has two partial areas of its length, which are provided with a separating structure 10.
  • the separation structure 10 is in each case formed by a knurling with a plurality of adjacent notches.
  • other embodiments of the separation structure 10 are also possible.
  • the described method it is possible to reproducibly achieve a very good yarn preparation even in different applications as well as in different types of rotor.
  • the length of the prepared yarn end 9 is subject to extremely small fluctuations.
  • a very uniform resolution of the yarn end and orientation of the fibers can be achieved by the separating structure 10, in particular in connection with the movement of the yarn end 9 in its longitudinal direction, so that piecers of high quality can be produced. It is particularly advantageous that all of the described processes from the rotor cleaning, the sucking of the yarn end 9 to the rewinding of a defective Garn Anlagens in the intermediate position II of the lid. 4 can be carried out, whereby a considerable time savings can be achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP16192712.4A 2015-10-08 2016-10-07 Procédé de préparation d'un bout de fil pour commencer à filer sur un dispositif de filature à rotor d'une machine à filer à rotor et machine à filer à rotor Active EP3153612B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015117204.6A DE102015117204A1 (de) 2015-10-08 2015-10-08 Verfahren zum Vorbereiten eines Garnendes zum Anspinnen an einer Rotorspinnvorrichtung einer Rotorspinnmaschine sowie Rotorspinnmaschine

Publications (2)

Publication Number Publication Date
EP3153612A1 true EP3153612A1 (fr) 2017-04-12
EP3153612B1 EP3153612B1 (fr) 2020-01-15

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EP16192712.4A Active EP3153612B1 (fr) 2015-10-08 2016-10-07 Procédé de préparation d'un bout de fil pour commencer à filer sur un dispositif de filature à rotor d'une machine à filer à rotor et machine à filer à rotor

Country Status (4)

Country Link
US (1) US10400360B2 (fr)
EP (1) EP3153612B1 (fr)
CN (1) CN106995952B (fr)
DE (1) DE102015117204A1 (fr)

Cited By (1)

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EP4101954A1 (fr) * 2021-06-10 2022-12-14 Saurer (Jiangsu) Textile Machinery Co. Ltd. Boîte à filer pour un dispositif de filature à rotor à bouts ouverts

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DE102017113029A1 (de) 2017-06-13 2018-12-13 Maschinenfabrik Rieter Ag Verfahren zur Herstellung einer Rotortasse für einen Offenend-Spinnrotor sowie Rotortasse für einen Offenend-Spinnrotor
DE102017123279A1 (de) * 2017-10-06 2019-04-11 Maschinenfabrik Rieter Ag Rotorspinnmaschine mit wenigstens einer Luftleitung zum Zuführen von Umgebungsluft in ein Lagergehäuse sowie Spinnvorrichtung einer Rotorspinnmaschine
DE102017124983A1 (de) * 2017-10-25 2019-04-25 Maschinenfabrik Rieter Ag Changiereinheit, Verfahren zum Betreiben einer Changiereinheit sowie Arbeitsstelle mit einer Changiereinheit
DE102018112594A1 (de) * 2018-05-25 2019-11-28 Maschinenfabrik Rieter Ag Verfahren zum Vorbereiten eines Garns zum Anspinnen an einer Rotorspinnvorrichtung einer Rotorspinnmaschine sowie Rotorspinnmaschine
CN113652774B (zh) * 2020-12-30 2022-12-02 苏州多道自动化科技有限公司 转杯纺包缠纱的全自动智能控制方法及系统
EP4215655A1 (fr) 2022-01-20 2023-07-26 Maschinenfabrik Rieter AG Procédé de fonctionnement d'un poste de filage d'un métier à filer à rotor et métier à filer à rotor
DE102022129721A1 (de) 2022-01-20 2023-07-20 Maschinenfabrik Rieter Ag Verfahren zum Betreiben einer Spinnstelle einer Rotorspinnmaschine sowie Rotorspinnmaschine

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CN106995952B (zh) 2021-09-07
US10400360B2 (en) 2019-09-03
DE102015117204A1 (de) 2017-04-13
CN106995952A (zh) 2017-08-01
EP3153612B1 (fr) 2020-01-15

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