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US3698174A - Spinning machine and method of operating the same - Google Patents

Spinning machine and method of operating the same Download PDF

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Publication number
US3698174A
US3698174A US104245A US3698174DA US3698174A US 3698174 A US3698174 A US 3698174A US 104245 A US104245 A US 104245A US 3698174D A US3698174D A US 3698174DA US 3698174 A US3698174 A US 3698174A
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US
United States
Prior art keywords
spinning
roller
withdrawing
chamber
spinning chamber
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 - Lifetime
Application number
US104245A
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English (en)
Inventor
Miroslav Boucek
Miroslav Jiskra
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.)
Vyzkumny Ustav Bavlnarsky AS
Original Assignee
Vyzkumny Ustav Bavlnarsky 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 Vyzkumny Ustav Bavlnarsky AS filed Critical Vyzkumny Ustav Bavlnarsky AS
Application granted granted Critical
Publication of US3698174A publication Critical patent/US3698174A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • ABSTRACT A spinning machine and a method of operating it.
  • the spinning machine has one or more rotary spinning chambers each of which receives fibrous sliver from a rotary carding and feed roller, spins it into a yarn and has the yarn withdrawn by a withdrawing device.
  • the drive of the feed and carding roller is first terminated and simultaneously positive braking action is applied to the roller.
  • the withdrawing device has its drive terminated and only then is the rotary spinning chamber disconnected from its own. drive.
  • the present invention relates generally to a spinning machine, and more particularly to a so-called open-end spinning machine. Still more particularly the present invention relates to a method of stopping the operation of such a spinning machine and to an arrangement for l effecting this method.
  • so-called open-end spinning machines comprising a plurality of spinning units each of which has a rotary spinning chamber, a feed mechanism and a withdrawing and wind-up mechanism.
  • the feed mechanism is in form of carding roller which separates fibrous sliver into its individual fibers and supplies them to the rotary spinning chamber.
  • the latter rotates at high speed and is provided in its circumferential wall with air-escape apertures through which air can escape due to the centrifugal forces resulting from the high-speed rotation of the chamber, with a consequent underpressure which develops in the chamber and which draws the fibers into the chamber where they are spun into a yarn.
  • the yarn is withdrawn by the withdrawing mechanism and wound by means of the winding mechanism onto a bobbin.
  • the feed mechanism, the withdrawing mechanism and the winding mechanism are mounted on independent shafts.
  • fibers continue to be supplied to the interior of the spinning chamber at such time at which the withdrawing mechanism for the spun yarn has already been stopped.
  • this supply of fibers is not as regular and as even as it is when the machine is in normal operation.
  • the fibers are therefore irregularly distributed on the collecting surface of the spinning chamber which becomes overfilled and as a consequence priming during a subsequent starting-up of the machine is rendered much more difficult.
  • the annulus formed by the fibers on the annular collecting surface of the rotary spinning chamber can become deformed after the rotation of the chamber has been stopped so that a deformed annular ribbon of fibers is present on the collecting surface when the rotation of the spinning chamber is subsequently to be re-started.
  • the trailing yarn end may not spin into or become connected with such a deformed ribbon and breakage will then occur.
  • the attendant or operator of the spinning machine must shut down the particular spinning unit and clean the spinning chamber, whereupon priming must subsequently be performed manually, which is a time-consuming process.
  • one feature of the invention resides in a method of stopping a spinning machine having at least one spinning chamber, at least one rotatable feed roller feeding fibers to said spinning chamber for conversion into a yarn, withdrawing means for withdrawing yarn from the spinning chamber, and drives for positively driving the chamber, the roller and the means.
  • This method comprises, briefly stated, the steps of disengaging the feed roller from its associated drive, concomitantly effecting positive braking of the rotation of the feed roller, disengaging the withdrawing-means from the associated drive and finally disengaging the spinning chamber from its drive.
  • a clutch connecting the feed roller with its drive, which clutch can be disengaged and is provided with a brake for stopping positively the rotation of the feed roller, with both the clutch and the brake being controlled by a control mechanism.
  • FIGURE is a simplified partially diagrammatic, partially sectioned view of a spinning machine embodying the present invention, with parts omitted for the sake of clarity.
  • Each of the spinning units comprises a rotary spinning chamber 1 whose construction per se is already known and which is mounted rotatably about an axis of rotation via bearings 2 journalled in the frame 3 of the machine.
  • a fiber separating mechanism is provided, comprising a carding or combing roller 4 which receives fibrous sliver and separates the same into its constituent fibers.
  • a feeding roller 5 is connected with the roller 4 together with a non-illustrated presser means which is also known, from the US. Pat. No. 3,360,918 (symbol 9).
  • Each of the units further has a withdrawing and winding-up mechanism for yarn, consisting of a pair of withdrawing rollers 6 (one shown of each) and a winding roller 7 against which a bobbin 8 bears to be rotated thereby.
  • a sliver bobbin 9 is provided at the lower part of the respective spinning unit and carries sliver 10 of fibrous material which is to be supplied to the carding roller 4.
  • the spinning chambers 1 are standard in their configuration and operation, meaning that they are well-known to those skilled in the art. They have air escape openings on their circumferential wall so that air can escape from them as they rotate at high speed, thereby creating an underpressure with a consequent suction effect which draws fibers into the interior of the respective spinning chamber 1.
  • a pulley 11 is mounted on the shaft of the respective spinning chamber and is driven by a drive belt 12 which extends along the machine and is common to all of the spinning units, being driven by an electric motor 13.
  • the withdrawing rollers 6 and the winding up roller 7 are mounted on shafts l4 and 15, respectively, which are all interconnected by a chain 16 guided over gears 17 and 18 and advanced by them.
  • One of the shafts l4 and 15 is connected to the electric motor 19 by means of a reversing clutch 28 and provided with an electromagnetic brake 33.
  • a shaft 20 mounts the carding rollers 4 of the various units and is connected with a drive in form of an electric motor 21 via a clutch 22.
  • the opposite end of the shaft 20 is equipped with a brake 23.
  • Feed rollers 5 are mounted on a shaft 24 which is driven by an electric motor 25 with a clutch 26 being interposed between the two, and with the opposite end of the shaft 24 being provided with a brake 27.
  • the clutches 22, 26 and the brakes 23 and 27 are electromagnetically controlled.
  • a control device 29 (as being known, e.g., from the US. Pat. Nos. 3,354,631 and 3,354,626) is provided with two control elements, namely a starting button 30 and a stop button 31.
  • Such control devices 29 are already well known in the art and require no detailed discussion. It is merely necessary to point out that the device 29 controls in known manner the operation of the various mechanisms of the entire spinning machine in such a manner that in an adjustable time sequence the drives are controlled in a suitable sequential manner.
  • the electric motors 13, 19, 21, and 25, the clutches 22, 26 and 28 and the brakes 23, 33 and 27 are connected with the device 29 by electrical conductors as illustrated.
  • rollers 4, 5 be braked rapidly and effectively so that they do not continue to supply fibers into the interior of the spinning chamber 1 when their drives are de-energized. This assures that after the withdrawing and winding rollers 6 and 7 are subsequently stopped by de-energizing their respective drives, no further separation and feeding of the fibers into the spinning chamber takes place.
  • the control device 29 de-energizes the drives 19 for the withdrawing and winding rollers 6 and 7 and simultaneously activates the brakes 33 therefor, but with such a delay relative to the actuation of the brakes for the rollers 4 and 5 that the fiber ribbon in the spinning chamber 1 can be converted into a yarn whose trailing end, however, will remain within the withdrawing tube 34 of the associated rotary spinning chamber 1 upon complete stoppage of the rollers 6 and 7, so that when the chamber 1 is restarted, it can be drawn into the interior thereof by the suction effect created thereby.
  • the brakes 23 and 27-or their equivalents-stop operation of the combing and feeding rollers 4 and 5 in such a manner as to effect their complete standstill within the time interval between de-energization of their drives 21 and 25 and the initiation of the brakes for the rollers 6 and 7. It is during this time period that the fiber ribbon still within the spinning chamber 1 is converted into a yarn 32. Subsequently the drive of the spinning chamber 1 is terminated by switching off the electromotor 13. This is true of course of all of the spinning units although it has been described only with reference to a single one thereof.
  • the control device 29 will first energize the electromotors i3, 19. 21 and 25 whereby the spinning chambers have rotary motion imparted to them. After a time delay so calculated as to permit the motors 13, 19, 21, and 25 to start up and to permit the spinning chambets 1 to start rotating, the device 29 engages clutches 22 and 26 to effect rotational of the carding rollers 4 and feed rollers 5. This renews the feeding of fibers into the spinning chambers 1.
  • the reversing clutch 28 is engaged which for a certain predetermined time intervafwill impart reverse motion to the withdrawing and winding rollers 6 and 7 so that the trailing end of the yarn 32 in the respective withdrawing tube is returned into the associated rotary spinning chamber where it contacts the collecting surface and becomes adhered to the fiber ribbon forming thereon.
  • the reversing clutch 28 reverses operation of the withdrawing and winding rollers 6 and 7 so that the same now begin to withdraw the yarn again.
  • yarn 32 is now continuously withdrawn again from the rotary spinning chambers l and wound by the winding roller 7 onto a bobbin 8. If a yarn breakage occasionally takes place during operation of the machine, it is removed manually after the spinning chamber has first been cleaned out. This, however, is not part of the present invention.
  • step of braking said roller is at least substantially completed before initiation of said step of disengaging said withdrawing means.
  • a spinning machine in combination, at least one rotary spinning chamber; at least one rotatable carding roller having a periphery adapted to receive fibers and to transfer them to said spinning chamber for conversion into a yarn; fiber supply means for supplying fibers onto said periphery of said carding roller; withdrawing means .for withdrawing yarn from said spinning chamber; separate drive means for said chamber, said roller and said withdrawing means respectively operatively associated with the same; and terminating means for terminating driving of said chamber, roller and withdrawing means by the respective drive means, said terminating means including a disengageable clutch connecting said carding roller with said drive means therefor, and brake means for positively stopping rotation of said carding roller upon disengaging of said clutch.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US104245A 1970-01-19 1971-01-06 Spinning machine and method of operating the same Expired - Lifetime US3698174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS367A CS151696B1 (de) 1970-01-19 1970-01-19

Publications (1)

Publication Number Publication Date
US3698174A true US3698174A (en) 1972-10-17

Family

ID=5335616

Family Applications (1)

Application Number Title Priority Date Filing Date
US104245A Expired - Lifetime US3698174A (en) 1970-01-19 1971-01-06 Spinning machine and method of operating the same

Country Status (6)

Country Link
US (1) US3698174A (de)
JP (1) JPS5436257B1 (de)
CS (1) CS151696B1 (de)
DE (1) DE2062768B2 (de)
FR (1) FR2077222B1 (de)
GB (1) GB1305477A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882663A (en) * 1972-08-30 1975-05-13 Elitex Zavody Textilniho Device for sequential starting and stopping separate groups of operating means in adjustable time intervals
JPS5155436A (ja) * 1974-10-04 1976-05-15 Hirai Hironori Oopunendobosekikiniokeru boshiteishihoho
US3973382A (en) * 1974-02-12 1976-08-10 Hironori Hirai Yarn guide device for an open-end spinning machine
US3988879A (en) * 1974-07-08 1976-11-02 Nuova San Giorgio S.P.A. Method and apparatus for yarn length measuring
JPS5245039U (de) * 1975-09-25 1977-03-30
US4055942A (en) * 1975-02-19 1977-11-01 Fritz Stahlecker Method for piecing a thread on open-end spinning units
US4276741A (en) * 1973-08-16 1981-07-07 Fritz Stahlecker Method and apparatus for start-spinning a thread on an open-end spinning unit
US4998404A (en) * 1988-12-23 1991-03-12 Savio S.P.A. Method and device for removing deteriorated fibres during yarn rejoining in an open-end spinning machine
US5095689A (en) * 1988-12-23 1992-03-17 Savio, S.P.A. Method and device for rejoining yarn with high efficiency in an open-end spinning machine
US5414986A (en) * 1992-05-30 1995-05-16 W. Schlafhorst Ag & Co. Method and apparatus for supplying sliver to the spinning stations of spinning machines in the form of a transport-containerless bunch
US5694756A (en) * 1994-05-26 1997-12-09 Reiter Ingolstadt Spinnereimaschinenbau Ag Process and device to stop an open-end rotor spinning device
US5775085A (en) * 1995-07-19 1998-07-07 Zellweger Luwa Ag Method and device for preventing mass fluctuations in fiber material
US8931249B2 (en) 2011-09-21 2015-01-13 Rieter Ingolstadt Gmbh Spinning machine and method for interrupting yarn production on a spinning machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH572530A5 (de) * 1972-09-22 1976-02-13 Vyzk Ustav Bavlnarsky
US4022011A (en) * 1974-02-13 1977-05-10 Hironori Hirai Yarn piecing method for open-end spinning machine
US4054024A (en) * 1974-09-30 1977-10-18 Hironori Hirai Apparatus for stopping and restarting the operation of an open-end spinning system
WO1980001813A1 (en) * 1979-02-22 1980-09-04 Proizv Ob Tekstil Mash Method of starting spindleless spinning machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354631A (en) * 1964-04-20 1967-11-28 Vyzk Ustav Bavlnarsky Method and apparatus for preventing interruption of a spinning process during breakage of the spun thread
US3354626A (en) * 1966-09-26 1967-11-28 Cizek Leopold Method and apparatus for stopping and starting a spinning machine
US3541774A (en) * 1968-01-25 1970-11-24 Elitex Zavody Textilniho Control apparatus for starting,stopping,and priming a spinning machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1084662A (de) * 1965-08-27
AT264331B (de) * 1965-10-01 1968-08-26 Vyzk Ustav Bavlnarsky Vorrichtung zum Abnehmen der Fasern von der der Spinnkammer einer Luft-Spinnmaschine vorgeschalteten Auskämmwalze
AT268941B (de) * 1966-03-19 1969-02-25 Vyzk Ustav Bavlnarsky Fadenbruch-Wächtereinrichtung
NL156456C (de) * 1966-09-02
DE1807030A1 (de) * 1967-12-01 1969-06-12 Vyzk Ustav Bavlnarsky Vorrichtung zum Wiederanspinnen von Garn in einer Unterdruckspinnmaschine zum kontinuierlichen ringlosen Feinspinnen
DE1807031A1 (de) * 1967-12-01 1969-06-12 Vyzk Ustav Bavlnarsky Nositel Vorrichtung zum Wiederanspinnen von Garn in einer Unterdruckspinnturbine zum kontinuierlichen ringlosen Feinspinnen
US3604194A (en) * 1968-01-30 1971-09-14 Toray Industries Fiber supply method and apparatus in an open-end spinning system utilizing airflow and centrifugal force
DE2448584C3 (de) * 1974-10-11 1984-10-25 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Auflöseeinrichtung für eine Offen-End-Spinnvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354631A (en) * 1964-04-20 1967-11-28 Vyzk Ustav Bavlnarsky Method and apparatus for preventing interruption of a spinning process during breakage of the spun thread
US3354626A (en) * 1966-09-26 1967-11-28 Cizek Leopold Method and apparatus for stopping and starting a spinning machine
US3541774A (en) * 1968-01-25 1970-11-24 Elitex Zavody Textilniho Control apparatus for starting,stopping,and priming a spinning machine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882663A (en) * 1972-08-30 1975-05-13 Elitex Zavody Textilniho Device for sequential starting and stopping separate groups of operating means in adjustable time intervals
US4276741A (en) * 1973-08-16 1981-07-07 Fritz Stahlecker Method and apparatus for start-spinning a thread on an open-end spinning unit
US3973382A (en) * 1974-02-12 1976-08-10 Hironori Hirai Yarn guide device for an open-end spinning machine
US3988879A (en) * 1974-07-08 1976-11-02 Nuova San Giorgio S.P.A. Method and apparatus for yarn length measuring
JPS5155436A (ja) * 1974-10-04 1976-05-15 Hirai Hironori Oopunendobosekikiniokeru boshiteishihoho
US4055942A (en) * 1975-02-19 1977-11-01 Fritz Stahlecker Method for piecing a thread on open-end spinning units
JPS5245039U (de) * 1975-09-25 1977-03-30
US4998404A (en) * 1988-12-23 1991-03-12 Savio S.P.A. Method and device for removing deteriorated fibres during yarn rejoining in an open-end spinning machine
US5095689A (en) * 1988-12-23 1992-03-17 Savio, S.P.A. Method and device for rejoining yarn with high efficiency in an open-end spinning machine
US5414986A (en) * 1992-05-30 1995-05-16 W. Schlafhorst Ag & Co. Method and apparatus for supplying sliver to the spinning stations of spinning machines in the form of a transport-containerless bunch
US5694756A (en) * 1994-05-26 1997-12-09 Reiter Ingolstadt Spinnereimaschinenbau Ag Process and device to stop an open-end rotor spinning device
US5775085A (en) * 1995-07-19 1998-07-07 Zellweger Luwa Ag Method and device for preventing mass fluctuations in fiber material
US8931249B2 (en) 2011-09-21 2015-01-13 Rieter Ingolstadt Gmbh Spinning machine and method for interrupting yarn production on a spinning machine

Also Published As

Publication number Publication date
GB1305477A (de) 1973-01-31
DE2062768A1 (de) 1971-07-29
FR2077222A1 (de) 1971-10-22
FR2077222B1 (de) 1974-12-20
CS151696B1 (de) 1973-11-19
JPS5436257B1 (de) 1979-11-08
DE2062768B2 (de) 1980-09-11

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