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EP3919659B1 - Procédé de filage d'un métier à filer à rotor à bout libre et métier à filer à rotor à bout libre - Google Patents

Procédé de filage d'un métier à filer à rotor à bout libre et métier à filer à rotor à bout libre Download PDF

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Publication number
EP3919659B1
EP3919659B1 EP20177976.6A EP20177976A EP3919659B1 EP 3919659 B1 EP3919659 B1 EP 3919659B1 EP 20177976 A EP20177976 A EP 20177976A EP 3919659 B1 EP3919659 B1 EP 3919659B1
Authority
EP
European Patent Office
Prior art keywords
open
end rotor
rotor spinning
cylinder
sliver
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
EP20177976.6A
Other languages
German (de)
English (en)
Other versions
EP3919659A1 (fr
Inventor
Christoph Haase
Jaroslav SEMERAD
Jaroslav BUCAK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saurer Czech sro
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Saurer Czech sro
Saurer Spinning Solutions GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saurer Czech sro, Saurer Spinning Solutions GmbH and Co KG filed Critical Saurer Czech sro
Priority to EP20177976.6A priority Critical patent/EP3919659B1/fr
Priority to CN202110590043.XA priority patent/CN113755976B/zh
Publication of EP3919659A1 publication Critical patent/EP3919659A1/fr
Application granted granted Critical
Publication of EP3919659B1 publication Critical patent/EP3919659B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • 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
    • D01H4/42—Control of driving or stopping
    • D01H4/44—Control of driving or stopping in rotor spinning

Definitions

  • the invention relates to a method for piecing the open-end rotor spinning devices of the work stations of an open-end rotor spinning machine in the so-called "joint-spinning-in" method, the work stations of the open-end rotor spinning machine each having a drivable spinning rotor rotating at high speed in a rotor housing that can be subjected to negative pressure , have a drivable sliver opening roller and a sliver draw-in cylinder that can be driven by a single motor.
  • the open-end rotor spinning machine In the event of a power failure, the open-end rotor spinning machine is shut down in such a way that a yarn end required for re-piecing remains in the area of a thread take-off tube of the open-end rotor spinning device at the work site. After the power failure, the open-end rotor spinning devices of all work stations of the open-end rotor spinning machine are spun again at the same time.
  • the invention also relates to the open-end rotor spinning device.
  • Open-end rotor spinning machines are known in various embodiments and are described in detail in the patent literature in numerous applications.
  • the various open-end rotor spinning machines often differ not only with regard to the design of their jobs, but often also with regard to the mode of operation or the operation of their open-end rotor spinning devices.
  • Various methods are known, some of which differ significantly, in connection with the re-piecing of numerous jobs after a power failure.
  • open-end rotor spinning machines are known whose numerous jobs are supplied by one or more operating units, so-called piecing carriages.
  • Such a piecing carriage travels when required, for example after a spinning interruption due to a yarn breakage, to the affected work station, positions itself there and spins the open-end rotor spinning device of the work station again.
  • Such open-end rotor spinning machines however, if, for example due to a power failure, spinning is interrupted at all work stations of the open-end rotor spinning machine at the same time, a relatively long time is required until all work stations of the open-end rotor spinning machine are piecing again.
  • each of these self-sufficient workstations has a relatively high suction air requirement during a piecing process, with the result that after a power failure only a limited number, for example ten, of these self-sufficient workstations can start spinning again at the same time. Also in accordance with open-end rotor spinning machines DE 101 39 075 A1 it therefore always takes a long time before all of the numerous work stations of the textile machine producing cross-wound bobbins are ready for operation again.
  • Another method for piecing the open-end rotor spinning devices of the jobs of an open-end rotor spinning machine is from EP 2 957 663 A1 known.
  • the work stations have, as usual, an open-end rotor spinning device for producing a thread, a downstream yarn take-off device and a winding device for producing a cross-wound bobbin.
  • the open-end rotor spinning devices each have a spinning rotor rotating at high speed in a rotor housing that can be subjected to negative pressure, a rotatably mounted sliver opening roller and a sliver intake cylinder.
  • the spinning rotors and the sliver opening rollers are each driven by machine-long, circulating tangential belts, while the drive the fiber sliver draw-in cylinder takes place via machine-long drive shafts, which are acted upon by drives arranged at the machine end.
  • the invention is based on the object, in connection with open-end rotor spinning machines that work in the "joint-spinning-in” method, to develop a method that ensures that even when everyone restarts Jobs of an open-end rotor spinning machine, to Example after a power failure, it is ensured that all piecings of the numerous work stations of the open-end rotor spinning machine are always properly trained.
  • This object is achieved according to the invention in that, when a power failure occurs, the feed speed of the sliver feed cylinder is first continuously reduced, and then the feed speed of the sliver feed cylinder is briefly increased again to generate additional fiber feed into the spinning rotor, and the sliver feed cylinder is then stopped so abruptly that after At the point at which the additional fibers are fed in, the fibers are torn off in a targeted manner, with the torn-off fibers being disposed of pneumatically.
  • the method according to the invention has the particular advantage that a defined breaking point is created by a brief increase in the amount of fiber to be fed into the spinning rotor and the subsequent abrupt stopping of the fiber feed, which ensures that the torn yarn ends can be removed at all work stations of the open-end rotor spinning machine have an almost identical appearance.
  • the piecings created with such optimized yarn ends are accordingly all almost the same and have a good quality standard.
  • the kinetic energy of the outgoing spinning rotor drive is used to support the electrical supply for the drive of the sliver draw-in cylinder.
  • the outgoing rotor drive still provides enough electrical energy that the drive of the sliver draw-in cylinder can be accelerated for a short time, with the result that there is a brief increase in the in the outgoing spinning rotor amount of fiber fed in.
  • the resulting excess fibers are disposed of by the textile machine's dirt suction device.
  • the sliver draw-in cylinder is stopped in each case when the draw-in speed of the sliver draw-in cylinder has reached a predetermined target value. Provision is preferably made for the sliver draw-in cylinder to be turned back after the abrupt stop. This can prevent individual fibers from dripping. The aforementioned method steps can be used to ensure that all piecings created at the same time always have a proper standard.
  • the object is also achieved by an open-end rotor spinning machine with a control device and open-end rotor spinning devices at the work stations.
  • the work stations of the open-end rotor spinning machine each have a drivable spinning rotor rotating at high speed in a rotor housing that can be subjected to vacuum, a drivable sliver opening roller and a sliver intake cylinder that can be driven by a single motor.
  • the control device shuts down the open-end rotor spinning machine in the event of a power failure in such a way that a yarn end required for piecing on again remains in the area of a thread take-off tube of the open-end rotor spinning device at the work site.
  • the control device controls the open-end rotor spinning machine in such a way that the open-end rotor spinning devices of all work stations of the open-end rotor spinning machine are piecing again at the same time.
  • the control device controls the sliver draw-in cylinder when the power failure occurs in such a way that the draw-in speed of the sliver draw-in cylinder is first continuously reduced and then the draw-in speed of the sliver draw-in cylinder is briefly increased again to generate an additional fiber feed into the spinning rotor and that the sliver draw-in cylinder is then stopped so abruptly that that after the point at which the additional fibers are fed in, the fibers are torn off in a targeted manner, with the torn-off fibers being disposed of pneumatically.
  • the point in time at which the additional fiber feed is started can be set by means of the control device.
  • the amount of fiber supplemental feed may also be adjustable by means of the controller.
  • the target value of the draw-in speed of the fiber sliver draw-in cylinder can preferably be specified to the control device after the same has been increased.
  • the Figure 1A shows schematically a first exemplary embodiment of an open-end rotor spinning machine 1 with a large number of work stations 2, in which, for example in the event of a power failure, the "joint-spinning-in" method is used.
  • the open-end rotor spinning machine 1 two, each arranged at the end of the machine Machine frames 30 and 40, in which, similar to the Figure 1B shown, in each case at least part of the drives for the working organs of the jobs 2 are arranged.
  • the work stations 2 arranged between the machine frames 30 and 40 are combined to form so-called sections 4, which generally represent an assembly unit, with the individual sections 4 each having a plurality of work stations 2 on both sides.
  • twelve work stations 2 are arranged next to one another on each side of the sections 4, which are connected to one another or connected to the machine frames 30, 40, for example by connecting elements. Also arranged in the machine frame 40 is a control device 29 which controls the processes of the open-end rotor spinning machine 1 and via which the operator can specify parameters.
  • the Figure 1B shows an alternative embodiment of an open-end rotor spinning machine 1.
  • the work stations 2 of this comparable open-end rotor spinning machine 1 are also operated in the "joint-spinning-in" process after a power failure.
  • this open-end rotor spinning machine 1 also has a plurality of sections 4 which are each equipped with twenty-four work stations 2 .
  • this open-end rotor spinning machine 1 has a central machine frame 3 arranged approximately centrally between the numerous sections 4 .
  • the jobs 2 of the open-end rotor spinning machine 1 have, as usual, what is in the Figures 1A and 1B not shown in more detail for reasons of clarity, each has an open-end rotor spinning device 5 equipped with a spinning rotor 8, an opening roller 10 and a sliver draw-in cylinder 11, and a winding device 6, which is equipped with a creel, a yarn traversing device and a bobbin drive roller.
  • a sliver that is stored in a sliver can 7 is spun into a thread which is then wound up on the winding device 6 to form a cross-wound bobbin 9.
  • the various working elements of the open-end rotor spinning devices 5 and the winding device 6 are acted upon either by means of so-called group drives and/or by individual drives.
  • the yarn traversing device of the winding device 6 is actuated, with the (not shown) thread guide on one side of the machine are each connected via a machine-long thread guide rod 12 to a thread guide gear 13 and to a thread guide drive 14.
  • the thread guide gear 13 and the associated thread guide drive 14 are there, as in Figure 1B indicated, arranged approximately centrally between the jobs 2 positioned central machine frame 3.
  • this central machine frame 3 there is also a winding shaft drive 15 and a winding shaft gear 17 for the rotatably mounted winding shafts 16, which drive the cross-wound bobbins 9 by friction via connected winding rollers.
  • Such a central machine frame 3 also usually has a device 19 for generating the negative pressure required during the spinning process and a filter device 27 for cleaning the air pollution occurring during the spinning process.
  • a device 19 for generating the negative pressure required during the spinning process
  • a filter device 27 for cleaning the air pollution occurring during the spinning process.
  • Within the central machine frame 3 are also the drives 20 and 21 for tangential belts 23 and 26, which act on the spinning rotors 8 and the opening rollers 28 of the open-end rotor spinning devices 5, and a control device 29 is positioned.
  • the central machine frame 3 can also have a connecting piece 25 via which the open-end rotor spinning machine 1 can be connected, for example, to an external pneumatic source or to an air conditioning system belonging to the spinning mill.
  • the numerous sections 4 arranged to the right and left of the central machine frame 3 of the open-end rotor spinning machine 1 are, as is known and therefore not shown for reasons of clarity, with various continuous supply and disposal ducts, for example an air duct for the spinning air suction, an electronics duct for the Bus connection of the control device 29 and/or equipped with a cable duct for the yarn monitoring system.
  • 4 different drive elements are mounted in the sections, with which the working elements of the jobs 2 can be acted upon.
  • drive units are, for example, the yarn guide rods 12, the winding shafts 16 and the yarn take-off shafts.
  • the tangential belts 23, 26 for driving the spinning rotors 8 and the opening rollers 28 also run through the sections 4.
  • continuous drive shafts or defined controllable individual drives for the sliver draw-in cylinder 11 are arranged.
  • FIGS 2A and 2 B show, each in a perspective view, an open-end rotor spinning device 5 of a, for example semi-automatic, open-end rotor spinning machine 1.
  • open-end rotor spinning machines 1 each have a large number of jobs 2, which in turn are each equipped with an open-end rotor spinning device 5 and one in the Figures 2A and 2 B not shown winding device 6 are equipped.
  • the open-end rotor spinning devices 5 are each equipped with a rotor housing 18 that can be subjected to negative pressure and in which a spinning rotor 8 rotates at high speed during the spinning process.
  • such open-end rotor spinning devices 5 have an attached opening roller housing 22 in which an opening roller 28 is rotatably mounted.
  • the opening roller 28 combs out a sliver stored in a sliver can 7 and presented by a sliver intake cylinder, with the individual fibers combed out by the opening roller 28 being conveyed pneumatically via a so-called fiber guide channel to the rotor housing 18, which is subjected to negative pressure, and there by the rotating spinning rotor 8 to form a thread to be spun.
  • the open-end rotor spinning devices 5 shown are also each mounted so that they can pivot to a limited extent by means of a bearing device, for example a bearing axis 39 that is machine-long.
  • the spinning rotor 8 is rotatably mounted with its rotor shaft 31, for example in a direct bearing device 32, and is driven by a circulating, machine-long tangential belt 23 on which the rotor shaft 31 rests.
  • the rotor housing 18, which can be subjected to negative spinning pressure, in which the spinning cup of a spinning rotor 8 rotates at high speed during the spinning process and which can be closed by a cover element 41, is, as already indicated above, connected via a fiber guide channel to a sliver opening device identified overall by reference number 33 .
  • the direct bearing device 32 and the rotor housing 18 form a rotor shaft bearing element 42 which is connected to the opening roller housing 22 of the sliver opening device 33 via a pivot axis 34 .
  • the rotor shaft bearing element 42 In the operating position, in which the axis of rotation of the opening roller 28 and the rotor axis of the sliver draw-in cylinder 11 are arranged orthogonally to the axis of rotation of the spinning rotor 8, the rotor shaft bearing element 42 is positioned in such a way that the rotor shaft 31 rests from below on the machine-long, circulating tangential belt 23. With the open-end rotor spinning device open 5, on the other hand, the rotor shaft bearing element 42 is positioned in an inoperative position in which a braking element 35 bears against the rotor shaft 31, which is now positioned spaced apart from the machine-length tangential belt 23.
  • the opening roller 28 and the sliver draw-in cylinder 11 are rotatably mounted in the opening roller housing 22, which is preferably made of an aluminum alloy , can be acted upon.
  • the pneumatic device 10 has an air inlet opening 36 through which ambient air flows into the opening roller housing 22 during the spinning process, which forms a pneumatic guide for combed out, good individual fibers in the area of the opening roller housing 22 .
  • an air suction opening 37 Arranged on the side of the pneumatic device 10 opposite the air inlet opening 36 is an air suction opening 37 which is part of a dirt suction pipe 38 which is connected in a pressure-tight manner to a machine layer dirt disposal channel.
  • the dirt disposal channel can be pressurized pneumatically, for example by a vacuum device 19 arranged in the central machine frame 3 .
  • the kinetic energy of the collecting drives is preferably used to briefly ensure the energy supply for the control of all relevant drives, in particular the sliver draw-in cylinder 11, until the machine comes to a standstill.
  • the sliver draw-in cylinders 11 are driven briefly in such a way that the value of the fiber quantity to be fed through the sliver draw-in cylinder 11 into the opening roller housing 22 and thus into the spinning rotor 8 increases and a defined additional fiber feed is generated, which generates a predetermined breaking point.
  • the kinetic energy of the outgoing spinning rotor drive 20 is used to influence the feed speed of the sliver feed cylinder 11, which is identified in the diagram with the reference numeral 45, in a defined manner.
  • a target value 47 of the draw-in speed 45 is reached at some point, at which the operation can no longer be maintained.
  • the kinetic energy of the spinning rotor drive is then used to briefly increase the draw-in speed 45 of the sliver draw-in cylinder 11 and thus the fiber feed into the spinning rotor 8 again.
  • This predeterminable point in time of the start of the brief increase in the fiber feed which is identified by the reference number 44 , can be set by software on the control device 29 , like the desired amount of fiber feed.
  • the point in time 44 of the start is, for example, 150 ms before the target value 43, at which the sliver draw-in cylinder 11 is abruptly stopped and the fiber feed is thus stopped.

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

Claims (8)

  1. Procédé de rattachement des dispositifs de filature à rotor à sortie ouverte (5) du poste de travail (2) d'une machine de filature à rotor à sortie ouverte (1), par lequel les postes de travail (2) de la machine de filature à rotor à sortie ouverte (1) comportent chacun un élément entraînable, dans carter de rotor (18) pouvant être mis sous vide avec un rotor de filage (8) tournant à vitesse élevée, un cylindre couvert de ruban de fibres (28) entraînable ainsi qu'un cylindre d'alimentation en ruban de fibres (11) qui est entraîné par un seul moteur, par lequel la machine de filature à rotor à sortie ouverte (1), en cas de panne de courant, est arrêtée de manière à conserver l'extrémité du fil nécessaire au rattachement de fil dans la zone d'un tube de tirage de fil du dispositif de filature à rotor à sortie ouverte (5) du poste de travail (2), et par lequel, après la panne de courant, les dispositifs de filature à rotor à sortie ouverte (5) de tous les postes de travail (2) de la machine de filature à rotor à sortie ouverte (1) sont rattachés en même temps,
    caractérisé en ce que,
    en cas de panne de courant, la vitesse d'introduction (45) du cylindre d'alimentation en ruban de fibres (11) est d'abord réduite de manière continue, puis la vitesse d'introduction (45) du cylindre d'alimentation en ruban de fibres (11) est à nouveau brièvement augmentée pour la génération d'une alimentation supplémentaire en fibres dans le rotor de filage (8) et le cylindre d'alimentation en ruban de fibres (11) est ensuite arrêté si brusquement que, selon l'emplacement de l'alimentation supplémentaire en fibres, une rupture ciblée des fibres se produit, par laquelle les fibres rompues sont éliminées de manière pneumatique.
  2. Procédé selon la revendication 1, caractérisé en ce que, en cas de panne courant, l'énergie cinétique de l'entraînement du rotor de filage en fin de course soutient l'alimentation électrique de l'entraînement du cylindre d'alimentation en ruban de fibres (11).
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que le cylindre d'alimentation en ruban de fibres (11) est brusquement arrêté lorsque la vitesse d'introduction (45) du cylindre d'alimentation en ruban de fibres (11) a atteint une valeur cible (43).
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que le cylindre d'alimentation en ruban de fibres (11) est retourné après l'arrêt brutal.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que les excès de fibres libres sont aspirés au plus tard lors du redémarrage de la machine de filature à rotor à sortie ouverte (1).
  6. Machine de filature à rotor à sortie ouverte (1) avec un dispositif de commande (29) et des dispositifs de filature à rotor à sortie ouverte (5) sur les postes de travail (2), par laquelle les postes de travail (2) de la machine de filature à rotor à sortie ouverte (1) comportent chacun un élément entraînable, dans carter de rotor (18) pouvant être mis sous vide avec un rotor de filage (8) tournant à vitesse élevée, un cylindre couvert de ruban de fibre entraînable ainsi qu'un cylindre d'alimentation en ruban de fibres (11), par lequel la machine de filature à rotor à sortie ouverte (1), en cas de panne de courant, est arrêtée de manière à conserver l'extrémité du fil nécessaire au rattachement de fil dans la zone d'un tube de tirage de fil du dispositif de filature à rotor à sortie ouverte (5) du poste de travail (2), par lequel le dispositif de commande (29) de la machine de filature à rotor à sortie ouverte (1), après la panne de courant, se poursuit de sorte que les dispositifs de filature à rotor à sortie ouverte (5) de tous les postes de travail (2) de la machine de filature à rotor à sortie ouverte (1) sont rattachés en même temps,
    caractérisé en ce que
    le dispositif de commande (29) du cylindre d'alimentation en ruban de fibres (11), en cas de panne de courant, se poursuit de sorte que la vitesse d'introduction (45) du cylindre d'alimentation en ruban de fibres (11) est d'abord réduite de manière continue, puis la la vitesse d'introduction (45) du cylindre d'alimentation en ruban de fibres (11) est à nouveau brièvement augmentée pour la génération d'une alimentation supplémentaire en fibres dans le rotor de filage (8) et le cylindre d'alimentation en ruban de fibres (11) est ensuite arrêté si brusquement que, selon l'emplacement de l'alimentation supplémentaire en fibres, une rupture ciblée des fibres se produit, par laquelle les fibres rompues sont éliminées de manière pneumatique.
  7. Machine de filature à rotor à sortie ouverte (1) selon la revendication 6, caractérisée en ce que l'heure (44) du démarrage de la génération d'une alimentation supplémentaire en fibres au moyen d'un dispositif de commande (29) est réglable.
  8. Machine de filature à rotor à sortie ouverte (1) selon la revendication 6 ou 7, caractérisée en ce que la quantité générée d'une alimentation supplémentaire en fibres au moyen d'un dispositif de commande (29) est réglable.
EP20177976.6A 2020-06-03 2020-06-03 Procédé de filage d'un métier à filer à rotor à bout libre et métier à filer à rotor à bout libre Active EP3919659B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20177976.6A EP3919659B1 (fr) 2020-06-03 2020-06-03 Procédé de filage d'un métier à filer à rotor à bout libre et métier à filer à rotor à bout libre
CN202110590043.XA CN113755976B (zh) 2020-06-03 2021-05-28 用于自由端转杯纺纱机的接纱方法和自由端转杯纺纱机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20177976.6A EP3919659B1 (fr) 2020-06-03 2020-06-03 Procédé de filage d'un métier à filer à rotor à bout libre et métier à filer à rotor à bout libre

Publications (2)

Publication Number Publication Date
EP3919659A1 EP3919659A1 (fr) 2021-12-08
EP3919659B1 true EP3919659B1 (fr) 2023-02-15

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EP (1) EP3919659B1 (fr)
CN (1) CN113755976B (fr)

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
DE3635510C2 (de) 1986-10-18 1995-10-26 Schlafhorst & Co W Verfahren und Einrichtung zur Außerbetriebnahme und darauffolgenden Wiederinbetriebnahme einer OE-Rotorspinnmaschine
DE4404538C1 (de) * 1994-02-12 1995-04-27 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zum Anspinnen einer Offenend-Spinnvorrichtung
DE19917968B4 (de) 1999-04-21 2007-08-23 Saurer Gmbh & Co. Kg Serviceaggregat für eine Kreuzspulen herstellende Textilmaschine
DE10101414B4 (de) * 2000-11-25 2011-01-05 Rieter Ingolstadt Gmbh Vorrichtung und Verfahren zum Zuführen eines Faserbandes auf eine Auflösewalze einer Spinnmaschine
DE10139075A1 (de) 2001-08-09 2003-02-20 Schlafhorst & Co W Offenend-Rotorspinnmaschine
CZ300469B6 (cs) * 2004-02-16 2009-05-27 Oerlikon Czech S.R.O. Zpusob podávání pramene pri výrobe efektní príze a sprádací jednotka k jeho provádení
CZ2012889A3 (cs) * 2012-12-10 2014-06-18 Rieter Cz S.R.O. Způsob zapřádání poloautomatického rotorového dopřádacího stroje
DE102014103193A1 (de) * 2014-03-11 2015-09-17 Rieter Ingolstadt Gmbh Spinnmaschine und Verfahren zum Übergeben eines Garnes an eine Anspinnvorrichtung
DE102014008814A1 (de) * 2014-06-11 2015-12-17 Saurer Germany Gmbh & Co. Kg Semiautomatische Offenend-Rotorspinnmaschine
DE102014008748A1 (de) * 2014-06-12 2015-12-17 Saurer Germany Gmbh & Co. Kg Offenend-Spinnvorrichtung
CZ306287B6 (cs) * 2015-04-07 2016-11-16 Rieter Cz S.R.O. Způsob ukončení předení na pracovním místě rotorového dopřádacího stroje
CZ306368B6 (cs) * 2015-05-14 2016-12-21 Rieter Cz S.R.O. Způsob hromadného zapřádání příze na pracovních místech rotorového dopřádacího stroje a zařízení k jeho provádění

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Publication number Publication date
CN113755976B (zh) 2022-09-20
CN113755976A (zh) 2021-12-07
EP3919659A1 (fr) 2021-12-08

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