EP0289009A1 - Verfahren und Vorrichtung zum Überwachen und Einhalten einer vorgegebenen Garnqualität - Google Patents

Verfahren und Vorrichtung zum Überwachen und Einhalten einer vorgegebenen Garnqualität Download PDF

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Publication number
EP0289009A1
EP0289009A1 EP88106779A EP88106779A EP0289009A1 EP 0289009 A1 EP0289009 A1 EP 0289009A1 EP 88106779 A EP88106779 A EP 88106779A EP 88106779 A EP88106779 A EP 88106779A EP 0289009 A1 EP0289009 A1 EP 0289009A1
Authority
EP
European Patent Office
Prior art keywords
suction
yarn
tension
spinning
drum
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.)
Withdrawn
Application number
EP88106779A
Other languages
German (de)
English (en)
French (fr)
Inventor
Herbert Stalder
Peter Egloff
Rolf Binder
Josef Baumgartner
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0289009A1 publication Critical patent/EP0289009A1/de
Withdrawn legal-status Critical Current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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • 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
    • D01H13/32—Counting, measuring, recording or registering devices
    • 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
    • D01H4/02—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 a fluid, e.g. air vortex
    • 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

Definitions

  • the invention relates to a method for monitoring and maintaining a predetermined yarn quality of a yarn produced by means of a friction spinning device, in which a fiber tube is formed from the fibers delivered to a suction drum or suction disk, from which the yarn is formed, and a spinning device for carrying out the method .
  • the present invention relates to a yarn manufacturing process in which a fiber tube is formed between the two drums, for which purpose it is essential that only one drum is perforated. No slippage occurs between the fiber tube and the drums.
  • the present invention has for its object to provide in an friction spinning process, in which a fiber tube is formed during the formation of the yarn, with economical means for optimal monitoring of the yarn quality and, in the event of fluctuations thereof, for rapid correction.
  • a method or a device is aimed at, in which or at least the draw-off rollers of a friction spinning machine having a plurality of spinning positions can be driven together, and the settings required for maintaining the yarn quality can be carried out on individual spinning positions in such a way that the Production speed of the other spinning stations is not required.
  • this object is achieved in that the yarn quality is determined by measuring the mechanical tension of the running yarn and the value of this measurement is compared with a predetermined tension value, and in that, if the tension tolerance falls below or is exceeded, the spinning device is acted on accordingly in order to increase or decrease the tension .
  • the solution to the problem is characterized in that a thread tension measuring element which emits a measuring signal is provided after the spinning position, as seen in the thread running direction, and in that a means is also provided which changes the thread tension by the means moving the suction nozzle in such a way that that the suction slot is displaceable in the direction of movement of the suction drum or the suction disc and opposite thereto.
  • display means for displaying the thread tension or control means can be provided in order to actuate the means for changing the thread tension on the basis of the measurement signal mentioned.
  • a friction spinning device comprises, in a manner known per se, an opening roller 1 with a fiber conveying channel 2 connected to it, the outlet mouth 3 of which adjoins contactlessly but close to a suction drum 4 (see also FIG. 3).
  • the suction drum has, as partially indicated by 5, a perforation.
  • the suction drum 4 has a suction nozzle 6 inside, which is contactless, but is close to the inner wall 7 of the suction drum 4. With the help of this suction nozzle 6, which is connected to a vacuum source (not shown), air is conveyed through the fiber conveying channel 2 and through the perforation 5 of the suction drum 4.
  • the suction nozzle 6 comprises an upper wall 8 and a lower wall 9, as seen in the direction of FIG. 3, and lateral end walls 10 (shown in FIG. 2 with dashed lines).
  • the suction nozzle 6 is further connected to a connection channel 11.
  • the walls 8, 9 and 10 define a suction slot with the width B (FIGS. 1 and 3) and the length L (FIG. 2) adapted to the inner wall 7.
  • connection channel 11 is rotatably mounted in a rotary bearing 12 (shown in section), which is fixedly received in a fixed housing part 13 (shown in section).
  • connection channel 11 For rotating the connection channel 11 in order to pivot the suction nozzle 6 about the axis of rotation 14 of the connection channel 11, a guide element 15 is attached to the connection channel 11, which lies on a cam 17 with an associated sliding surface 16.
  • This cam 17 is pivotally mounted on the one hand in a pivot bearing 19 which is fixedly connected to a fixed housing part 18 (indicated by hatching) and on the other hand is connected to a servomotor 21 by means of a joint 20.
  • the servomotor in turn is firmly connected to a fixed housing part 22.
  • Such servomotors are known per se and can be of electromagnetic type, for example.
  • the suction drum 4 is rotatably mounted in a rotary bearing 25 which is fixedly connected to a fixed housing part 26.
  • a counter drum 24 is provided parallel to the suction drum 4 and, unlike the suction drum 4, is not perforated.
  • This counter drum 24 is rotatably mounted in a rotary bearing 23 which is movable as a whole in the directions C in a fixed sliding guide (not shown), but is not lifted off the sliding guide.
  • the suction drum 4 is driven by a motor 27 attached to the housing part 26.
  • the counter drum 24 is driven by means of an elastic belt 28 stretched around the suction drum 4 and around the counter drum 24.
  • a guide element 29 is fastened on the one hand to the rotary bearing 23, which lies on a cam 31 with a sliding surface 30.
  • the cam 31 is pivotably mounted in a fixed pivot bearing 32 and connected to a fixed servomotor 34 by means of a joint 33.
  • a compression spring 35 is fixedly arranged between the rotary bearing 23 and a fixed housing part 36.
  • a yarn 37 produced by the friction spinning device is drawn off in the direction D by a pair of take-off rollers 38.
  • a thread tension measuring device 39 is provided in front of the pair of draw-off rollers 38, viewed in the thread running direction D.
  • Such devices are known per se and are available on the market, for example, under the brand name Electronic Tensiometer R-1192 from Rothschild, Traubenstrasse 3, CH-8002 Zurich.
  • a measurement signal 40 generated by the thread tension measuring device 39 is received by a controller 41, which is not the subject of the invention, and processed into output signals described later.
  • a sliver (not shown) is fed into the opening roller 1 and dissolved into individual fibers by this and conveyed onto the surface of the suction drum 4 by means of the fiber conveying channel 2.
  • the air flow emerging from the fiber feed channel 2 is designated M and the air flow passing through the narrowest gap F is designated N. These two air flows are created by the suction effect of the suction nozzle 6 in the width B and length L of this suction nozzle.
  • a fiber 42 (FIG. 3A) deposited by the air flow M on the surface of the suction drum 4 is transported in accordance with the direction of rotation E on this surface against the narrowest gap F until the front fiber end 43 (FIG. 3A) is bent back and back by the lower air flow N. is brought to the named surface in order to be transported again in the direction of E.
  • this cycle creates a so-called fiber tube 44, which due to the direction of rotation E of the suction roller and the direction of rotation K of the counter roller 24 in Direction of rotation H (Fig. 3B) rotates at a peripheral speed which is essentially the peripheral speed of the drums 4 and. 24 corresponds to.
  • the yarn 37 condenses in the running direction D from this fiber tube 44.
  • the fiber tube 44 also shifts in the same direction and becomes smaller in cross section up to a minimal cross section in the area of the narrowest gap F. It has now been found that this reduction in cross-section and the increased wedge effect of the fiber tube 44 located in the wedge gap of the two rollers 4 and 24 result in a higher thread tension and a greater twist on the yarn 37.
  • the yarn 37 is the yarn part in front of the draw-off roller pair 38, viewed in the thread running direction D.
  • Another variable for changing the tension in the yarn 37 is to change the narrowest gap F. As the gap F narrows, the cross section of the fiber tube also decreases and the thread tension in the yarn 37 also increases.
  • the controller 41 now determines whether the respectively measured thread tension (also called thread tension) lies within a predetermined tolerance range and, if this is not the case, causes a change in the gap width F within a predetermined tolerance range and / or a swiveling of the suction nozzle 6 within a specified tolerance range.
  • thread tension also called thread tension
  • the size of the change in the gap width F including the predetermined tolerance range or the size of the pivoting of the suction nozzle 6 including the predetermined tolerance range must be determined empirically depending on the concept of the device, with the concept of the diameter of the drum 4 or. 24, the surface roughness of this drum, the amount of air sucked in etc. It is also possible to change the speed of rotation of the drums.
  • the gap width F is reduced and / or the suction slit 6 in Movement direction E shifted, respectively. if the voltage tolerance is exceeded, the two aforementioned measures are carried out in the opposite direction.
  • the control 41 shown for the friction spinning device of FIGS. 1 and 1A is intended as an individual control per so-called spinning station (a plurality of spinning stations result in a spinning machine).
  • spinning station a plurality of spinning stations result in a spinning machine.
  • such a solution is expensive and is not absolutely necessary due to the usually slow voltage changes.
  • a traveling device only measures the thread tension and displays it by display means (not shown) and that the elements to be adjusted in order to change the thread tension are operated manually until the thread tension is again within the given tolerance range.
  • Another application of the thread tension measurement consists in the simple monitoring of the spinning position by means of the thread tension measurement, that is to say that none of the measures mentioned for changing the thread tension are carried out and it is decided on the basis of the given thread tension tolerances to shut down the spinning position in order to remedy corresponding defects .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP88106779A 1987-04-27 1988-04-27 Verfahren und Vorrichtung zum Überwachen und Einhalten einer vorgegebenen Garnqualität Withdrawn EP0289009A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1601/87 1987-04-27
CH160187 1987-04-27

Publications (1)

Publication Number Publication Date
EP0289009A1 true EP0289009A1 (de) 1988-11-02

Family

ID=4214232

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88106779A Withdrawn EP0289009A1 (de) 1987-04-27 1988-04-27 Verfahren und Vorrichtung zum Überwachen und Einhalten einer vorgegebenen Garnqualität
EP88106780A Expired - Lifetime EP0289010B1 (de) 1987-04-27 1988-04-27 Verfahren und Vorrichtung zum Überwachen und Einhalten einer vorgegebenen Garnqualität

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88106780A Expired - Lifetime EP0289010B1 (de) 1987-04-27 1988-04-27 Verfahren und Vorrichtung zum Überwachen und Einhalten einer vorgegebenen Garnqualität

Country Status (6)

Country Link
US (2) US4821503A (enrdf_load_html_response)
EP (2) EP0289009A1 (enrdf_load_html_response)
JP (1) JP2635675B2 (enrdf_load_html_response)
AT (1) ATE68216T1 (enrdf_load_html_response)
DE (1) DE3865347D1 (enrdf_load_html_response)
IN (1) IN171021B (enrdf_load_html_response)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3900088A1 (de) * 1989-01-03 1990-07-05 Rieter Ag Maschf Verfahren zum betrieb einer spinnmaschine sowie eine ueberwachungsvorrichtung hierfuer
WO1992011535A1 (de) * 1990-12-19 1992-07-09 Barmag Ag Verfahren zur regelung der fadenzugkraft
DE4402582A1 (de) * 1994-01-28 1995-08-03 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zur Optimierung der Spinngeometrie einer Ringspinnmaschine
WO2019229059A1 (de) 2018-05-29 2019-12-05 Maschinenfabrik Rieter Ag Verfahren zum ermitteln von eigenschaften eines fasermaterials an einer arbeitsstelle einer textilmaschine und eine textilmaschine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832110A1 (de) * 1988-09-21 1990-03-29 Rieter Ag Maschf Friktionsspinnvorrichtung
DE3836481A1 (de) * 1988-10-26 1990-05-03 Schubert & Salzer Maschinen Verfahren und vorrichtung zum einstellen einer luftspinnvorrichtung
US5054173A (en) * 1989-05-18 1991-10-08 Barmag Ag Method and apparatus for the enhanced crimping of multifilament yarn
JPH03146726A (ja) * 1989-10-25 1991-06-21 Schubert & Salzer Mas Fab Ag 空気紡糸装置の調節方法及びこの調節を行うようになされた空気紡糸装置
ES2114468B1 (es) * 1995-11-24 1999-01-16 Univ Catalunya Politecnica Procedimiento y dispositivo de ajuste de la torsion del hilado en una tobera vortex de hilatura.
JP3163988B2 (ja) * 1996-07-26 2001-05-08 村田機械株式会社 紡績装置
EP1205588B1 (de) 2000-11-08 2004-12-15 Maschinenfabrik Rieter Ag Steuerung von Spinnstellen in einer Spinnmaschine
DE102004053505A1 (de) * 2004-11-02 2006-05-04 Wilhelm Stahlecker Gmbh Verfahren zum Optimieren der Produktionsleistung einer Spinnmaschine
JP2017071882A (ja) * 2015-10-09 2017-04-13 村田機械株式会社 紡績機
EP3828325A1 (de) * 2019-11-29 2021-06-02 Saurer Intelligent Technology AG Spinnstelle und luftspinnmaschine umfassend eine solche spinnstelle und verfahren zur erfassung einer einen soll-wert unterschreitenden fadenfestigkeit
CN111676551A (zh) * 2020-06-24 2020-09-18 江苏京正特种纤维有限公司 一种涡流纺设备用便于调节的喷嘴及其方法
CN112831873B (zh) * 2020-12-31 2022-05-20 盐城师范学院 一种基于环锭纺纱线质量的独立工序单独控制系统及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525560A1 (de) * 1975-06-07 1976-12-23 Fritz Stahlecker Verfahrbare wartungseinrichtung fuer offenend-spinnmaschinen
DE3316657A1 (de) * 1983-05-06 1984-11-08 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen
DE3424709A1 (de) * 1984-01-25 1986-02-06 Fritz 7347 Bad Überkingen Stahlecker Oe-friktionsspinnmaschine mit einer vielzahl von spinnaggregaten
EP0181105A2 (en) * 1984-10-29 1986-05-14 Hollingsworth (U.K.) Limited Friction spinning apparatus

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US3742692A (en) * 1971-06-01 1973-07-03 Leesona Corp Apparatus and method for false twisting yarn
US3848404A (en) * 1972-09-25 1974-11-19 Burlington Industries Inc Intermittent texturized yarn and false-twist apparatus and process for producing the same
CH568405A5 (enrdf_load_html_response) * 1974-02-08 1975-10-31 Zellweger Uster Ag
CH612152A5 (enrdf_load_html_response) * 1976-01-26 1979-07-13 Rieter Ag Maschf
JPS52107349A (en) * 1976-03-04 1977-09-08 Murata Machinery Ltd Spun yarn and method of producing same
US4083172A (en) * 1977-04-28 1978-04-11 Champion International Corporation Control system for pneumatically treated yarns
JPS5930922A (ja) * 1982-08-12 1984-02-18 Toyoda Autom Loom Works Ltd オ−プンエンド精紡機における糸継方法
DE3245574C2 (de) * 1982-12-09 1985-10-03 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Verfahren zum Überwachen des Texturiervorgangs bei einem Friktionsfalschdrall-Aggregat
US4648054A (en) * 1983-06-20 1987-03-03 Unisearch Limited Continuous measurement of yarn diameter and twist
IN161355B (enrdf_load_html_response) * 1983-07-01 1987-11-14 Rieter Ag Maschf
EP0148402B1 (de) * 1983-12-20 1987-08-12 Maschinenfabrik Rieter Ag Vorrichtung zum Verwirbeln eines Multifilamentgarnes
DE3402367A1 (de) * 1984-01-25 1985-08-01 Fritz 7347 Bad Überkingen Stahlecker Oe-friktionsspinnmaschine mit einer vielzahl von spinnaggregaten
US4677819A (en) * 1985-03-22 1987-07-07 Hans Stahlecker Method and apparatus for operating an open-end friction spinning machine
DE3601358A1 (de) * 1986-01-18 1987-07-23 Fritz Stahlecker Verfahren zum betreiben einer oe-friktionsspinnmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525560A1 (de) * 1975-06-07 1976-12-23 Fritz Stahlecker Verfahrbare wartungseinrichtung fuer offenend-spinnmaschinen
DE3316657A1 (de) * 1983-05-06 1984-11-08 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen
DE3424709A1 (de) * 1984-01-25 1986-02-06 Fritz 7347 Bad Überkingen Stahlecker Oe-friktionsspinnmaschine mit einer vielzahl von spinnaggregaten
EP0181105A2 (en) * 1984-10-29 1986-05-14 Hollingsworth (U.K.) Limited Friction spinning apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3900088A1 (de) * 1989-01-03 1990-07-05 Rieter Ag Maschf Verfahren zum betrieb einer spinnmaschine sowie eine ueberwachungsvorrichtung hierfuer
WO1992011535A1 (de) * 1990-12-19 1992-07-09 Barmag Ag Verfahren zur regelung der fadenzugkraft
DE4402582A1 (de) * 1994-01-28 1995-08-03 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zur Optimierung der Spinngeometrie einer Ringspinnmaschine
US5551223A (en) * 1994-01-28 1996-09-03 Zinser Textilmaschinen Gmbh Process and apparatus for optimizing spin geometry of a ring spinning machine
WO2019229059A1 (de) 2018-05-29 2019-12-05 Maschinenfabrik Rieter Ag Verfahren zum ermitteln von eigenschaften eines fasermaterials an einer arbeitsstelle einer textilmaschine und eine textilmaschine
DE102018112801A1 (de) 2018-05-29 2019-12-05 Maschinenfabrik Rieter Ag Verfahren zum Ermitteln von Eigenschaften eines Fasermaterials an einer Arbeitsstelle einer Textilmaschine und eine Textilmaschine

Also Published As

Publication number Publication date
US4821503A (en) 1989-04-18
EP0289010A1 (de) 1988-11-02
DE3865347D1 (de) 1991-11-14
ATE68216T1 (de) 1991-10-15
JPS63282316A (ja) 1988-11-18
IN171021B (enrdf_load_html_response) 1992-07-04
EP0289010B1 (de) 1991-10-09
US4819421A (en) 1989-04-11
JP2635675B2 (ja) 1997-07-30

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