EP0205962B1 - Verfahren zum Anspinnen eines Garnes an einer Friktionsspinnvorrichtung - Google Patents

Verfahren zum Anspinnen eines Garnes an einer Friktionsspinnvorrichtung Download PDF

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Publication number
EP0205962B1
EP0205962B1 EP86107139A EP86107139A EP0205962B1 EP 0205962 B1 EP0205962 B1 EP 0205962B1 EP 86107139 A EP86107139 A EP 86107139A EP 86107139 A EP86107139 A EP 86107139A EP 0205962 B1 EP0205962 B1 EP 0205962B1
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EP
European Patent Office
Prior art keywords
yarn
accordance
coil
friction spinning
piecing
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.)
Expired
Application number
EP86107139A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0205962A2 (de
EP0205962A3 (en
Inventor
Emil Briner
Urs Keller
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6274041&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0205962(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0205962A2 publication Critical patent/EP0205962A2/de
Publication of EP0205962A3 publication Critical patent/EP0205962A3/de
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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
    • D01H4/52—Piecing arrangements; Control therefor for friction spinning

Definitions

  • the invention relates to a method for spinning a yarn on a friction spinning device, in which free-flying fibers are delivered in a fiber conveying channel onto a friction spinning surface of a friction spinning means and are conveyed on this friction spinning surface to a yarn formation point, from which a yarn is drawn off.
  • Such a device is known from DE-A-3 318 687, in which a yarn end is picked up by a turned-back bobbin by a suction device and this sucked-in yarn is held by two lifting devices in the gusset gap of two stopped friction spinning drums.
  • the yarn Before the delivery of exposed fibers to this yarn, the yarn is opened by turning back the friction spinning drums, so that its fibers lie essentially without rotation in the gusset gap of the friction spinning drums.
  • the friction spinning drums are then put into operation at a reduced speed in the normal direction of rotation and free-flying fibers are fed to the opened yarn, and the resulting yarn is drawn off at a correspondingly reduced speed and fed to a connecting means.
  • the delivered yarn is picked up by a suction nozzle that functions as a yarn store.
  • the entire device is raised to the operating speed and then decoupled from the necessary auxiliary drive means and driven by the normal drive means at the operating speed.
  • the disadvantage of such a device is the large number of auxiliary devices for the piecing process. It is therefore an object of the invention to find a method for piecing a yarn on a friction spinning device which can be carried out with a minimum of auxiliary devices for piecing.
  • the method according to the invention achieves the object by the features listed in the characterizing part of the first claim.
  • FIG. 1 shows an opening roller 1 known from the rotor open-end spinning method, with an infeed opening A which is provided for receiving a fiber band (not shown) and which, by means of an adjoining fiber conveying channel 2, releases free-floating fibers onto a perforated, rotatable and drivable friction spinning drum 3.
  • a counter-roller 4 which can also be rotated and driven, which is arranged in a contact-free manner but very close to the friction spinning drum 3 and parallel to it, serves as an aid for screwing in the fibers turned into a yarn 5 in the gusset nip.
  • the finished yarn 5 is drawn off by a pair of take-off rollers 6.
  • Such devices are known per se from previous publications in the patent literature and are therefore not described further.
  • a suction device 8 is displaced in a direction opposite to the yarn take-off direction against this roll 7 until the roll is held at the corresponding end by the mouth of the suction device 8, without sucking the wrap into the suction device 8.
  • the rotating winding 7 is stopped from the held end, so that the fibers which are still delivered wind around this stopped winding and give the winding increased strength.
  • the winding 7 is then pulled out of the yarn formation point in the yarn withdrawal direction M by the suction device 8, a yarn-like structure 9 adjoining this winding.
  • the latter state is shown in FIG. 3.
  • the yarn-like structure 9 is only pulled out of the yarn formation point at the speed of the suction device 8, since the take-off rollers 6 are still provided in a position that is distant from one another and are therefore unable to produce the yarn structure 9 in between with one of the yarns deduct appropriate speed.
  • the mouth of the suction device 8 is enlarged by a means not shown, so that the suction device 8 is able to suck in the winding 7.
  • the upper one (viewed in the direction of the figures) of the two draw-off rollers is pressed against the lower one (as shown in FIGS. 1, 5 and 6), so that the yarn-like structure 9 is now drawn off at production speed and correspondingly to a normal yarn with the desired yarn thickness is formed, ie the suction device 8 now takes over the yarn 5 at production speed.
  • the yarn 5 is guided by means of the suction device 8 into a winding device (not shown) in order to transfer the yarn 5 for winding this device.
  • FIGS. 4 to 6 provides, instead of a widening mouth of the suction device 8 to accommodate the winding 7 itself, a second suction device 10, which removes the winding 7, which is only held by the suction device 8, and the following one yarn-like structures 9 sucked.
  • the take-off rollers 6 are closed, i.e. pressed against each other, whereby the yarn 5 is withdrawn from the yarn formation point at production speed and taken over by the suction device 10.
  • the yarn formation point is to be understood as the distance at which the fiber-receiving friction roller 3 is to be understood, at which the fibers form the winding 7 or, in a manner known per se. to the yarn-like structure 9, respectively. to be formed into yarn 5.
  • this second suction device 10 is now guided against a winding device (not shown) in order to transfer the sucked-in yarn to this winding device.
  • the yarn In the event of a yarn breakage, the yarn cannot simply be fed to a winding device, as in the aforementioned case, but the newly produced yarn must be connected to a yarn end located on the unfinished bobbin.
  • the yarn newly delivered by the friction spinning device is therefore guided either by means of the suction device 8 or by means of the second suction device 10 to a connecting device, not shown, into which the yarn obtained from the incomplete bobbin has also previously been brought in order to be used with the new one manufactured yarn to be connected.
  • connection can be made by knotting or by splicing, but both methods require that the yarn ends to be used are stopped, i.e. that the newly supplied, newly produced yarn must in the meantime be fed to a yarn store (not shown) until the connection process has ended.
  • the yarn can be taken up either at the production speed or at a speed which is lower than this, but sufficient for the formation of a yarn.
  • a yarn store either a suction nozzle or a drum store can be used in a manner known per se, such as. B. is shown in DE-A-2 558 419.
  • the spool of the winding device then takes over the yarn from the accumulator at production speed.
  • Such a device with said band is shown, for example, in FR-A-2 480 799.
  • a mechanical gripper (not shown) can also be used instead of the first suction device 8.
  • the gripper merely has to be able to be able to grasp the winding 7 in the manner mentioned in order to stop it and pull it out of the yarn formation point in order to then transfer the winding to the second suction device 10.
  • the winding 7 could not only be stopped, but rather set in rotation in the opposite direction, in order to thereby give the winding greater strength by twisting it together.
  • suction devices contain a swirl-giving suction mouth and are known per se.
  • the opening of the take-off rollers 6 and the displacement of the counter-roller 4 shown in FIG. 2 is not necessary for the insertion of the first suction device 8 if the winding is replaced by some other e.g. manually guided means (not shown) is brought out. Because it goes without saying that the aforementioned piecing process can be carried out manually or mechanically. The opening of the take-off rollers 6 must therefore in the case of manual piecing at the earliest for interposing the yarn 5 or. of the yarn-like structure 9 can be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP86107139A 1985-06-24 1986-05-26 Verfahren zum Anspinnen eines Garnes an einer Friktionsspinnvorrichtung Expired EP0205962B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3522556 1985-06-24
DE19853522556 DE3522556A1 (de) 1985-06-24 1985-06-24 Verfahren zum anspinnen eines garnes an einer friktionsspinnvorrichtung

Publications (3)

Publication Number Publication Date
EP0205962A2 EP0205962A2 (de) 1986-12-30
EP0205962A3 EP0205962A3 (en) 1987-10-28
EP0205962B1 true EP0205962B1 (de) 1989-11-08

Family

ID=6274041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107139A Expired EP0205962B1 (de) 1985-06-24 1986-05-26 Verfahren zum Anspinnen eines Garnes an einer Friktionsspinnvorrichtung

Country Status (5)

Country Link
US (1) US4646513A (enrdf_load_stackoverflow)
EP (1) EP0205962B1 (enrdf_load_stackoverflow)
JP (1) JPS61296131A (enrdf_load_stackoverflow)
DE (2) DE3522556A1 (enrdf_load_stackoverflow)
IN (1) IN167273B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN171023B (enrdf_load_stackoverflow) * 1987-04-29 1992-07-04 Rieter Ag Maschf
US4918913A (en) * 1987-06-12 1990-04-24 Maschinenfabrik Rieter Ag Method of, and device for, performing a start spinning operation for spinning of a yarn in a friction spinning apparatus
DE3908463A1 (de) * 1989-03-15 1990-09-20 Stahlecker Fritz Vorrichtung zum zwischenspeichern eines doppelfadens
DE4319203C2 (de) * 1993-06-09 2003-10-23 Schlafhorst & Co W OE-Friktionsspinnvorrichtung
US6108672A (en) * 1996-10-07 2000-08-22 Moore Business Forms, Inc. Multiple company integrated documents production
CN109422132A (zh) * 2017-09-05 2019-03-05 江苏爱纺纺织有限公司 一种色纺纱自动卷收装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640059A (en) * 1968-10-17 1972-02-08 Elitex Zavody Textilniho Method of spinning-in yarn upon interruption of the spinning process in spindleless spinning machines and device for performing said method
DE2540703A1 (de) * 1975-09-12 1977-03-17 Schubert & Salzer Maschinen Verfahren und vorrichtung zum beseitigen einer unregelmaessigkeit in einem auf die spule einer offen-end-spinnvorrichtung aufzuwickelnden faden
DE2939644C2 (de) * 1979-09-29 1982-10-14 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Verfahren und Vorrichtung zur Beseitigung einer Unregelmäßigkeit am laufenden Faden an einer Offenend-Spinnstelle während des Spinnens
US4485615A (en) * 1981-03-16 1984-12-04 Pigalev Evgeny Y Apparatus for piecing yarn to broken end of a fibrous strand in a spinning machine
DE3123494C2 (de) * 1981-06-13 1992-07-09 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Verfahren und Vorrichtung zum Aufwinden eines neu angesponnenen Fadens auf eine in eine Spulvorrichtung eingelegte Leerhülse
DE3317369A1 (de) * 1983-05-13 1984-11-15 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und vorrichtung zur inbetriebnahme einer friktionsspinnmaschine
DE3318687C2 (de) * 1983-05-21 1995-07-06 Schlafhorst & Co W Verfahren und Vorrichtung zur Inbetriebnahme eines Friktionsspinnaggregats
DE3338833A1 (de) * 1983-10-26 1985-05-09 Fritz 7347 Bad Überkingen Stahlecker Verfahren und vorrichtung zum anspinnen eines garnes an einem spinnaggregat einer oe-friktions-spinnmaschine
DE3401316A1 (de) * 1984-01-17 1985-07-18 Fritz 7347 Bad Überkingen Stahlecker Verfahren zum stillsetzen und wiederanfahren eines oe-friktionsspinnaggregates

Also Published As

Publication number Publication date
IN167273B (enrdf_load_stackoverflow) 1990-09-29
JPH0236689B2 (enrdf_load_stackoverflow) 1990-08-20
DE3522556A1 (de) 1987-01-02
JPS61296131A (ja) 1986-12-26
EP0205962A2 (de) 1986-12-30
US4646513A (en) 1987-03-03
EP0205962A3 (en) 1987-10-28
DE3666851D1 (en) 1989-12-14

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