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WO1999020819A1 - Procede de filage consistant a transformer une touffe de fibres sur un metier a filer et metier a filer permettant de mettre en oeuvre ce procede - Google Patents

Procede de filage consistant a transformer une touffe de fibres sur un metier a filer et metier a filer permettant de mettre en oeuvre ce procede Download PDF

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Publication number
WO1999020819A1
WO1999020819A1 PCT/CZ1998/000040 CZ9800040W WO9920819A1 WO 1999020819 A1 WO1999020819 A1 WO 1999020819A1 CZ 9800040 W CZ9800040 W CZ 9800040W WO 9920819 A1 WO9920819 A1 WO 9920819A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibre bundle
spinning
yarn
sensor
fibres
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.)
Ceased
Application number
PCT/CZ1998/000040
Other languages
English (en)
Inventor
Zdenek S^¿PINDLER
Josef LUDVÍC^¿EK
Miroslav S^¿TUSÁK
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 Elitex AS
Original Assignee
Rieter Elitex AS
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 Rieter Elitex AS filed Critical Rieter Elitex AS
Priority to AU93366/98A priority Critical patent/AU9336698A/en
Publication of WO1999020819A1 publication Critical patent/WO1999020819A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/42—Control of driving or stopping
    • D01H4/44—Control of driving or stopping in rotor spinning
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/22—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to presence of irregularities in running material

Definitions

  • the invention relates to a method of yarn spinning by transforming a fibre bundle on a spinning machine comp ⁇ sing at least one operation unit independently producing yarn from a textile fibre bundle and winding the yarn into a resulting package
  • the invention also relates to a spinning machine for carrying out the method according to the invention comprising a plurality of operation units situated side by side in which each operation unit comprises a fibre bundle feed device, a spinning device and a yarn winding device and/or a yarn drawing-off device and a fibre bundle drawing or singling-out device and and/or a drawing device
  • Spinning machines are a group of textile machines used for transforming a textile fibre bundle into yarn
  • ring spinning frames producing the yarn by twisting the bundle of substantially parallel fibres by means of the system ring - traveller
  • Another widely used group of spinning machines are rotor spinning machines in which yarn is produced in a rotating spinning rotor from a fibre band created in the spinning rotor from singled-out fibres produced from a fibre bundle in the singling-out device and fed to the spinning rotor
  • Another group of spinning machines consists of friction spinning machines in which in a first step singled-out fibres are produced from a fibre bundle, and then they are led on the rotating surface of friction rollers from which they are then taken and twisted into yarn
  • the fibre bundle is twisted by the rotation or streaming of a gaseous medium or also by the rotation of an electric or magnetic field
  • textile machines imparting to the fibre bundle a false-twist after whose untwisting at least the outer layer of the fibre bundle will be twisted and
  • the objective of the invention is to create a yarn spinning method permitting to eliminate or considerably to reduce said lack of uniformity of the spun yam due to the lack of uniformity of the processed fibre bundle, and to modify a well-known spinning machine so as to enable it to process fibre bundles, both rover and sliver, of as far as possible low uniformity in order to simplify the technological process of the fibre bundle preparation for the spinning operation, either by using preparatory machines of relatively lower quality or by permitting to omit one of the preparatory operations when using high-quality preparatory machines, thus achieving considerable time and financial savings.
  • the stabilization of the fibre bundle supply permits further to increase the production parameters of spinning machines while maintaining or improving the quality of spun yarn and the spinning process stability.
  • the above objective is solved by the method of yarn spinning by transforming a fibre bundle according to the invention whose principle consists in that during the spinning process the quantity of fibres entering the spinning process is measured at the operation unit and that at least one spinning parameter of the operation unit is being modified according to the quantity of fibres entering the spinning process thus eliminating the lack of uniformity of the yarn count on the operation unit of the yarn being spun due to the lack of uniformity of the quantity of fibres entering the spinning process.
  • the advantage of this method consists in particular in reduced requirements on the quality, especially on the mass uniformity, of the fibre bundle entering the spinning process which means considerable technological and, consequently, financial savings in the preparation of the fibre bundle, whether the rover or the sliver, because some technological steps taken for improving the fibre bundle such as the drawing can be omitted while at the same time the production parameters of spinning machines and the spinning process stability are increased and the mass and appearance uniformity of spun yarn is improved.
  • the quantity of fibres entering the spinning process it is advantageous to adapt the quantity of fibres entering the spinning process according to the measured quantity of fibres entering the spinning process, preferably by modifying the feed speed of the fibre bundle entering the spinning process
  • the modification of the quantity of fibres entering the spinning process or of the feed speed of the fibre bundle entering the spinning process is the easiest way of realization of the method according to the invention, easily realizable on all spinning machines
  • It is advantageous to control the quantity of fibres entering the spinning process by monitoring the count of the fibres entering the spinning process, thus eliminating the lack of uniformity of the yarn due to the lack of uniformity of the entering fibre bundle, whether a sliver or a rover
  • the draft value and/or the feed speed o the fibre bundle into the drawing device can be advantageously additionally corrected according to the count of the yarn being spun, thus eliminating the influences of the spinning device on the uniformity of the yarn count
  • the feed speed of the fibre bundle fed to be singled out is additionally adjusted according to the count of the spun yarn, thus eliminating the influences of the spinning device on the uniformity of the yarn count
  • the invention further relates to a spinning machine for carrying out the method according to the invention whose principle consists in that the fibre bundle feed and/or the spinning device and/or the yarn winding and/or drawing-off device and/or fibre bundle drawing and/or singling-out device is fitted with a separate drive permitting to modify the operation speed of the device in question and coupled with a sensor of quality and presence of the fibre bundle situated in front of the entry of the fibre bundle into the spinning device
  • the separate drive permits to carry out individual modifications of the spinning parameters of the operation unit in question of the machine and thus to achieve the effects aimed at by the method according to the invention
  • the feed device In the spinning machine comprising fibre bundle feed device situated in front of the spinning device, it is advantageous to equip the feed device with a driving section which is coupled with a separate drive which, in its turn, is coupled with the control unit
  • the separate drive permits to adjust the feed speed of the fibre bundle fed to the spinning device so as to ensure a uniform quantity of supplied fibres
  • a sensor of quality and presence of fibre bundle connected with the control unit, is situated in front of the feed device
  • the sensor of quality and presence of fibre bundle is preferably situated behind the output of the drawing device and is coupled with the control unit so as to permit to monitor the fibre bundle count in front of the fibre entry into the spinning device and the subsequent control/adjustment of the feed of this fibre bundle
  • the spinning machines are according to another embodiment fitted with a sensor of quality and presence of fibre bundle mounted in front of the singling-out device and coupled with the control unit
  • the senor of quality and presence of fibre bundle is mounted behind the feed device of the fibre bundle
  • a sensor of fibre quantity coupled with the control unit, is situated behind the outlet of the singling-out device
  • this sensor is situated in the transport channel of the singled-out fibres so that the object of the measurement is the quantity of fibres fed to the spinning process
  • the separate drive is coupled with a sensor of quality and presence of yarn mounted at the operating unit in question of the machine
  • FIG. 1 shows a spimplified section through an operating unit of an open-end spinning machine with a separate drive of the fibre bundle drive device
  • Fig 2 the device according to Fig 1 in which the separate drive is coupled with a sensor of quality and presence of yarn at the operation unit
  • Fig 3 a schematic view of the operating unit of a friction-type spinning machine
  • Fig 4 a detail of the feed device of the friction-type spinning machine according to Fig 3
  • Fig 5 a schematic view of the operating unit of a ring spinning frame
  • Figs 1 and 2 show an example of embodiment of a spinning machine for carrying out the method according to the invention on a rotor spinning machine one operation unit of which is schematically shown in the Figs.
  • Each operation unit of the rotor spinning machine has related thereto a container __ holding a fibre bundle in the form of a sliver 2.
  • the sliver 2 is fed f tom the container __ by means of a sliver feed device 3 to a spinning unit 4 which comprises a rotating singling out roller 4J.
  • a spinning rotor 44 having at its widest area a collecting groove 441 for collecting singled out fibres into a fibre band which is then twisted to a yarn 5 delivered then through a yarn delivery tube 45.
  • the operation unit of the rotor spinning machine is also equipped with a draw-off device 6 for the yarn 5 and with a yarn winding device 7 a part of which is a yarn traverse device 7 ⁇ _.
  • the draw-off mechanism comprises a driving draw-off roller 61 mounted in the shown embodiment and in most well-known rotor spinning machines on a through driving draw-off shaft 6_H. Adapted to be tilted away from the driving draw-off roller 61. is a pressure draw-off roller 62 of the draw-off mechanism coupled with well-known, not shown means used to press it onto the driving draw-off roller 61..
  • the winding device 7 comprises a driving winding roller 72 which is in the shown embodiment seated on a through driving winding shaft 721.
  • the winding device 7 also comprises well-known bobbin arms 73 holding a tube of a bobbin 74.
  • the through driving draw-off shaft 611 and the through driving winding shaft 721 can be replaced by- separate drives of the driving draw-off roller 61_ and of the driving winding roller 72.
  • a sensor 81. of quality and presence of the yarn 5 is situated between the spinning rotor 44 and the draw-off device 6 of the operation unit
  • the sensor 81. serves in a well-known manner to stop the operation unit upon detection of a change of the yarn count reaching outside a predetermined range
  • the feed device 3 of the sliver 2 comprises a driving feed roller 31 coupled with a separate drive 32 permitting to change the rotation speed of the driving feed roller 31_
  • the driving feed roller 31 is mounted on a shaft connected with the rotor of a stepping motor 321, which is said separate drive 32
  • a pressure member 33 between whose operational surface and the circumferential surface of the driving feed roller 3 .
  • the sliver 2 is gripped and fed to the spinning unit 4 at a speed defined by the rotation speed of the driving feed roller 31.
  • the pressure member 33 can be made as a pressure feeding roller as is the case in the shown example of embodiment or as a well-known not represented "table” or as another well-known not illustrated member
  • the separate drive 32 can be made also, for instance, as an alternating- current motor with a converter, as a direct-current servomotor, or as a clutch with variable moment
  • a sensor 9 of quality and presence of the fibre bundle whose output is through a first information line 91. connected with a first information input 1CH of a control unit 10 of the operation unit of the rotor spinning machine Connected to a control output 102 by a control line 100 is a control of the separate drive 32 of the driving feed roller 31., in the shown example of embodiment made as a power supply to the stepping motor 321
  • the sensor 9 of quality and presence of fibre bundle can be made as an optical or capacitance or mass or f ⁇ ctional or pneumatic sensor
  • the sensor 9 of quality and presence of the fibre bundle monitors the presence of the sliver 2 in front of the entry to the feed device 3 of the spinning unit 4 as it is usual today in well-known rotor spinning machines Upon detection of the absence of the sliver 2, the sensor 9 sends a signal to the control unit 10 which in turn sends an order to stop the operation unit of the machine. If the sliver 2 is present at the position of the sensor 9, the sensor 9 continuously sends a signal proportional to the count of the sliver 2 which is led through the first information line 9_1 to the first information input 101 of the control unit 10.
  • the control unit 10 evaluates the count of the sliver 2, determines the feed speed of the sliver 2 required for maintaining a constant value of the count of the yarn 5 being spun, and imparts the feed speed thus determined, and more exactly, the corresponding rotation speed, to the driving feed roller 3J. via the separate drive 32 represented by the stepping motor 321.
  • the speed of the sliver 2 fed to the singling-out roller 41 of the spinning unit 4 is changed accordingly. In consequence of this, the quantity of the singled out fibres fed to the spinning rotor 44 of the spinning unit 4 remains invariably constant.
  • the other parameters of the operation unit of the rotor spinning machine i.e., the rotation speeds of the spinning rotor 44, of the driving draw-off roller 6_1 and of the driving winding roller 72, remain during the spinning operation constant because the above described machine design does not admit of modifying them separately at the operation unit of the machine.
  • a further improvement of the spinning machine and increase in the uniformity of the yarn 5 being spun can be achieved by the embodiment shown in Fig. 2.
  • a sensor 81 of quality and presence of the yarn 5 whose signal, proportional to the count of the yarn 5, is led through a second information line 811 to a second information input 103 of the control unit 10 which in reaction to possible fluctuations in the count of the spun yarn 5 further adjusts the rotation speed of the driving feed roller 3 . and consequently the speed at which the sliver 2 is fed into the spinning unit 4.
  • Another improvement of the solution according to the invention can be achieved by situating a sensor 93 monitoring the fibre quantity in the transport channel 43 for singled out fibres.
  • the output of the sensor 93 is connected through a third information line 931 with a third information input 104 of the control unit 10.
  • the signal of the sensor 93 monitoring the fibre quantity in the transport channel 43, proportional to the quantity of fibres passing though the transport channel 43 to the spinning rotor 44, is transmitted through the third information line 931 t0 the third information input 104 of the control unit 0 which in response to possible fluctuations in the quantity of the singled out fibres passing through the transport channel further corrects the rotation speed of the driving feed roller 3 . and by means of this the speed at which the sliver 2 is fed into the spinning unit 4 so as to achieve a constant value of the quantity of singled out fibres fed to the spinning rotor 44 which is in this machine type the yarn-producing operation unit
  • the separate use of the sensor 93 of fibre quantity is useful in cases in which the sensors 9 of quality and presence of the fibre bundle cannot be used
  • the sensor 9 of quality and presence of the fibre bundle is situated in front of the feed device 3 of the sliver 2 If allowed by the machine designed, the sensor 9 of quality and presence of the fibre bundle can be situated between the feed device 3 and the singling out roller 4 .
  • the correction of the feed speed of the sliver 2 based on the information about the count of the spun yarn 5 and/or on the information about the quantity of singled out fibres passing through the transport channel 43 eliminates such changes in the count of the spun yarn 5 as arise in the operation unit for causes different from fluctuations in the count of the entering sliver 2, for instance by the changes in the friction properties of the operating surfaces of the spinning rotor 44 due to impurities clinging to them during the spinning operation or by the fact that a number of singled out fibres erroneously enters the delivery channel 42 for impurities.
  • the present state of art permits to supply with separate drives also other functional components of the operation unit of a rotor spinning machine, i.e., the spinning rotor 44 and/or the driving draw-off roller 6 . and/or the driving winding roller 72.
  • the spinning rotor 44 and/or the driving draw-off roller 6 . and/or the driving winding roller 72 are also adjusted according to the count of the sliver 2_entering the spinning unit 4 also the rotation speed of the spinning rotor 44 and/or the rotation speed of the driving feed roller 31 and/or the rotation speed of the driving winding roller 72, and by adjusting them or their mutual relations to influence the count of the spun yarn 5 so as to obtain its maximum uniformity.
  • the method according to the invention can be applied also on a friction spinning machine one of the possible embodiments of which is schematically shown in Figs. 3 and 4.
  • the fibre bundle is made as a roving 21 supplied f tom a not shown container to the drawing device 30 of a well-known design having at its entry the driving feed roller 3 coupled with the separate drive 32 adapted to change the rotation speed of the driving feed roller 31 To the driving feed roller 3 .
  • Driving feed roller 3J. and the pressure member 33 make in this embodiment the feed device 3 of fibre bundle.
  • the spinning device 40 comprises two revolving suction drums 401 with suction adapters 402.
  • the yarn 5 is f armed by twisting the roving in a wedge-shaped area 403 between the suction drums 401 and is drawn-off then by the draw-off device 6 and in a well-known manner wound on a not shown bobbin. All functional components of the operation unit of the friction spinning machine are coupled with a central drive and have therefore a constant predetermined rotation speed except the driving feed roller 3J. of the drawing device 30 which is coupled with the individual drive 32.
  • the sensor 9 of quality and presence of fibre bundle In the path of the roving 2 . in front of the driving feed roller 31 of the drawing device 30 is situated the sensor 9 of quality and presence of fibre bundle through which the roving 21 passes.
  • the sensor 9 of quality and presence of fibre bundle is connected with the first information input 101 of the control unit 0 of the operation unit of the friction spinning machine
  • To the control output 102 of the control unit 10 is connected the control of the separate drive 32 of the driving feed roller 3J.
  • the sensor 9 of quality and presence of fibre bundle monitors the count of the roving 21 , and the information about the count of the roving is led to the first information input IJ. of the control unit 10 which evaluates the information and on the basis of this evaluation determines the feed speed of the roving 21 required for maintaining the count of the spun yarn 5 constant and through its control output 102 sends control information to the separate drive 32 in order to adjust the speed of the driving feed roller 3 . and by means of this the feed speed of the roving 21 entering the drawing device 30 Since the rotation speed of the other functional components of the operation unit of the machine remains constant, said adjustment of the feed speed of the roving 21 maintains the count of the yarn 5 at the outlet f tom the spinning device 40 at a constant value
  • the uniformity of the spun yarn 5 can be further increased by connecting the sensor 81 of quality and presence of yarn situated behind the spinning device 40 with the second information input 103 of the control unit 10 which in response to possible fluctuations in the count of the spun yarn 5 adjusts the rotation speed of the driving feed roller 3 . and by means of this the speed at which the roving 21 is fed into the drawing device 30 and, consequently into the spinning device 40
  • a further improvement of the friction spinning machine can be achieved by situating between the drawing device 30 and the spinning device 40 the second sensor 92 of quality and presence of fibre bundle whose information about the count of the roving 2J. entering the spinning device 40 is transmitted to the control unit 1_0 and serves for an additional adjustment of the feed speed of the roving 2J. resulting in a further increase of uniformity of the spun yarn 5
  • One of the sensors 9, 92 of quality and presence of fibre bundle can be situated also between the functional components of the drawing device 30 and they can be used either separately or together, or also separately or together in combination with the sensor 81 of quality and presence of the spun yarn 5
  • a ring spinning machine is schematically shown in Fig 5
  • the roving 2J. is supplied from a not shown container to the drawing device 30 from which it is led through a guide eye 4001 to a spinning device 400 consisting of the system ring - traveller and wound on the bobbin 70
  • the drawing device 30 comprises the driving feed roller 3 . coupled with the separate drive 32
  • To the circumference of the driving feed roller 3 . is related the pressure member 33 made in the shown embodiment as a pressure roller between which and the circumference of the driving feed roller 3J.
  • the fed roving 2J. is gripped
  • Driving feed roller 31 and the pressure member 33 make in this embodiment the feed device 3 of the fibre bundle
  • the sensor 9 of quality and presence of fibre bundle sends a signal proportional to the count of the supplied roving 21
  • the signal is led to the control unit 10 which controls via the separate drive 32 the rotation speed of the driving feed roller 3 . and maintains at a constant value the quantity of fibres led in the roving 21 into the drawing device 30 and by means of this controls also the uniformity of the spun yarn 5
  • a further increase in the uniformity of the spun yarn 5 in the ring spinning frames can be achieved by situating the second sensor 92 of quality and presence of fibre bundle behind the outlet f tom the drawing device 30 and by connecting its outlet with the second information input 103 of the control unit JO
  • the signal from the second sensor 92, proportional to the count of the roving 2J. leaving the drawing device 30, will be used by the control unit 10 in case of need of further correcting the rotation speed of the driving feed roller 3 .
  • the second sensor 92 also can be used separately
  • the method of yarn spinning can be used also in other spinning machines and increase the uniformity of yarn produced on them
  • the concrete embodiments of the separate drive 32 of the driving feed roller 31 , the control unit 10, the sensors 9, 92 of quality and presence of fibre bundle, and the sensors 8, 8 . of quality and presence of the yarn can be modified and mutually combined as needed
  • the invention relates not only to the concrete embodiments on spinning machines, as specifically or generally described above but also to the modifications and combinations of these embodiments serving to obtain the uniformity of the spun yarn by the method according to the invention
  • the stabilization of the yarn quantity entering the spinning process permits to increase the production parameters of spinning machines even for materials which are difficult to spin, not only for the narrow range of spinning cotton fibres of optimized length, while maintaining or even improving the quality of the spun thread and improving the stability of the spinning process

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

Abstract

L'invention concerne un procédé de filage (5) consistant à transformer une touffe de fibres. Ce procédé consiste à modifier en fonction de la quantité de fibres entraînée dans le procédé de filage au moins un paramètre de filage, tel la vitesse d'alimentation de la touffe de fibres, la valeur d'étirage, la vitesse de torsion du fil (5), la vitesse d'extraction du filé (5) ou la vitesse de canetage du filé de manière à éliminer le manque d'uniformité du comptage du filé (5) dû au manque d'uniformité de la quantité de fibres entraînée dans le procédé de filage. La quantité de fibres entraînée dans le procédé de filage est déterminée par la surveillance du comptage de la touffe de fibres entraînée. Le métier à filer permettant de mettre en oeuvre ce procédé comprend un capteur (9) de qualité et qui permet de détecter la présence de la touffe de fibres se trouvant en face de l'entrée de la touffe de fibres pratiquée dans le dispositif à filer. Au moins un des composants fonctionnels de l'unité de fonctionnement est doté d'un élément séparé d'entraînement (32) adapté pour modifier sa vitesse de fonctionnement.
PCT/CZ1998/000040 1997-10-21 1998-10-14 Procede de filage consistant a transformer une touffe de fibres sur un metier a filer et metier a filer permettant de mettre en oeuvre ce procede Ceased WO1999020819A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU93366/98A AU9336698A (en) 1997-10-21 1998-10-14 A method of yarn spinning by transforming a fibre bundle on a spinning machine and a spinning machine for carrying out the method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPV3325-97 1997-10-21
CZ332597 1997-10-21

Publications (1)

Publication Number Publication Date
WO1999020819A1 true WO1999020819A1 (fr) 1999-04-29

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PCT/CZ1998/000040 Ceased WO1999020819A1 (fr) 1997-10-21 1998-10-14 Procede de filage consistant a transformer une touffe de fibres sur un metier a filer et metier a filer permettant de mettre en oeuvre ce procede

Country Status (2)

Country Link
AU (1) AU9336698A (fr)
WO (1) WO1999020819A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103060966A (zh) * 2012-12-19 2013-04-24 芜湖富春纺织有限公司 半自动转杯纺纱机
EP3231902A1 (fr) 2016-04-12 2017-10-18 Rieter CZ s.r.o. Procédé de commande d'une machine textile comprenant une rangée de postes de travail disposés les uns à côté des autres et machine textile
CN109205388A (zh) * 2018-08-31 2019-01-15 安徽日发纺织机械有限公司 一种转杯纺纱机卷绕和引纱控制装置
CN112095188A (zh) * 2019-06-18 2020-12-18 卓郎纺织解决方案两合股份有限公司 对纺纱机的运行的优化
EP4375404A1 (fr) 2022-11-22 2024-05-29 Maschinenfabrik Rieter AG Procédé pour détecter la présence d'un ruban à l'entrée d'un poste de travail d'une machine textile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2338884A1 (fr) * 1976-01-26 1977-08-19 Rieter Ag Maschf Procede et dispositif pour mettre en evidence le caractere periodique des irregularites contenues dans un fil circulant entre la zone de formation de ce fil et sa zone de renvidage dans une machine de filature
GB2028384A (en) * 1978-08-16 1980-03-05 Vyzk Ustav Bavlnarsky Automatically Controlling Spinning Units of an Open-end Spinning Machine
DE3425345A1 (de) * 1984-07-10 1986-01-30 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und vorrichtung zum erzeugen einer gleichmaessigen, kontinuierlichen fasermenge
EP0606615A1 (fr) * 1993-01-13 1994-07-20 Zellweger Luwa Ag Procédé et appareil pour le contrôle continu de la qualité dans le travail préparatoire à la filature
DE4438882A1 (de) * 1994-10-31 1996-05-02 Truetzschler Gmbh & Co Kg Vorrichtung zur Messung der Stärke eines Faserverbandes an einer Strecke z. B. Regulierstrecke

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2338884A1 (fr) * 1976-01-26 1977-08-19 Rieter Ag Maschf Procede et dispositif pour mettre en evidence le caractere periodique des irregularites contenues dans un fil circulant entre la zone de formation de ce fil et sa zone de renvidage dans une machine de filature
GB2028384A (en) * 1978-08-16 1980-03-05 Vyzk Ustav Bavlnarsky Automatically Controlling Spinning Units of an Open-end Spinning Machine
DE3425345A1 (de) * 1984-07-10 1986-01-30 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und vorrichtung zum erzeugen einer gleichmaessigen, kontinuierlichen fasermenge
EP0606615A1 (fr) * 1993-01-13 1994-07-20 Zellweger Luwa Ag Procédé et appareil pour le contrôle continu de la qualité dans le travail préparatoire à la filature
DE4438882A1 (de) * 1994-10-31 1996-05-02 Truetzschler Gmbh & Co Kg Vorrichtung zur Messung der Stärke eines Faserverbandes an einer Strecke z. B. Regulierstrecke

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103060966A (zh) * 2012-12-19 2013-04-24 芜湖富春纺织有限公司 半自动转杯纺纱机
EP3231902A1 (fr) 2016-04-12 2017-10-18 Rieter CZ s.r.o. Procédé de commande d'une machine textile comprenant une rangée de postes de travail disposés les uns à côté des autres et machine textile
CZ307017B6 (cs) * 2016-04-12 2017-11-15 Rieter Cz S.R.O. Způsob řízení textilního stroje obsahujícího řadu vedle sebe uspořádaných pracovních míst a textilní stroj
CN109205388A (zh) * 2018-08-31 2019-01-15 安徽日发纺织机械有限公司 一种转杯纺纱机卷绕和引纱控制装置
CN112095188A (zh) * 2019-06-18 2020-12-18 卓郎纺织解决方案两合股份有限公司 对纺纱机的运行的优化
CN112095188B (zh) * 2019-06-18 2023-04-21 卓郎纺织解决方案两合股份有限公司 对纺纱机的运行的优化
EP4375404A1 (fr) 2022-11-22 2024-05-29 Maschinenfabrik Rieter AG Procédé pour détecter la présence d'un ruban à l'entrée d'un poste de travail d'une machine textile

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