US3798886A - Self-cleaning spinning arrangement for use with textile machines - Google Patents

Self-cleaning spinning arrangement for use with textile machines Download PDF

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Publication number
US3798886A
US3798886A US00208662A US20866271A US3798886A US 3798886 A US3798886 A US 3798886A US 00208662 A US00208662 A US 00208662A US 20866271 A US20866271 A US 20866271A US 3798886 A US3798886 A US 3798886A
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United States
Prior art keywords
yarn
arrangement
collecting surface
spinning
spinning chamber
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Expired - Lifetime
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US00208662A
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English (en)
Inventor
J Rajnoha
L Bures
B Burget
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Elitex Zavody Textilniho
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Elitex Zavody Textilniho
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    • 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
    • D01H4/04—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 contact of fibres with a running surface
    • D01H4/22—Cleaning of running surfaces
    • D01H4/24—Cleaning of running surfaces in rotor spinning

Definitions

  • ABSTRACT A self-cleaning spinning arrangement for use with textile machines, particularly open end spinning machines, includes a rotatable spinning chamber which has a fiber-collecting surface.
  • Supply means supplies carded fibrous material, together with incidental impu ritiesf'fBr iifibitibiibfitli cfillecting surface in the form of a fiber ribbon which is to be converted into yarn.
  • Withdrawal means withdraws fibrous material from the collecting surface, in form of yarn which travels along a yarn withdrawal path.
  • Pneumatic cleaning means provided in the region of the collecting surface automatically entrains the impurities and continuously removes them from the spinning chamber during operation of the latter.
  • Fibrous material supplied to a spinning chamber for conversion into yarn usually brings with it a variety of impurities. These include fibers of too short length, fiber fragments, dust, dirt, husk residues and various other undesirable contaminants. These impurities produce a variety of disadvantageous effects when fed to spinning chambers heretofore known, particularly those employed in the open end spinning process.
  • Open end spinning machines ordinarily comprise a rotating spinning chamber having a fiber-collecting surface.
  • fibrous material which has been carded preparatory to spinning is furnished to such spinning chamber and centrifugally deposited on the collecting surface in form of a fibrous ribbon.
  • fibrous material already deposited is withdrawn from the collecting surface in form of yarn. Twist can be imparted to such yarn by passing it across a suitably configurated deflecting element having a friction-twist surface.
  • an underpressure prevails in the spinning chamber during its rotation, such underpressure serving to draw fibrous material to be spun into the spinning chamber.
  • the underpressure will draw in a large amount of impurities, such as just mentioned, which will interfere with proper operation of the device.
  • the flow of air within the spinning chamber and the action of centrifugal force will cooperate to produce sizable accumulations of such impurities on the fiber-collecting surface, this surface being ordinarily situated at the farthest point from the axis of rotation of the spinning chamber.
  • Mechanized cleaning means have been developed, but are quite disadvantageous. In particular, the need for shutdown of the spinning process during cleaning has not been overcome. In addition, the mechanized cleaners known are complicated and difficult to handle.
  • one embodiment of the invention comprises, briefly stated, a housing a rotatable spinning chamber mounted for rotation in the housing and having a fiber-collecting surface.
  • a supply means supplies carded fibrous material, together with incidental impurities, for deposition onto the collecting surface in form of a fiber ribbon which is to be converted into yarn.
  • Withdrawing means withdraws fibrous material in form of yarn from the collecting surface along a yarn withdrawal path.
  • Pneumatic cleaning means is provided in the region of the collecting surface. The pneumatic cleaning means is adapted to entrain the impurities and continuously remove them from the spinning chamber during operation of the chamber.
  • the cleaning of the spinning chamber and fibercollecting surface thereof is in part effected by the moving yarn end itself, as it is formed and withdrawn from the fibrous ribbon inside the spinning chamber, in cooperation with an air flow established by the pneumatic cleaning arrangement.
  • the pneumatic cleaning arrangement is mounted in the immediate vicinity of the collecting surface, so as to have the greatest possible preventive influence on the accumulation of impurities at such location. It will be obvious, however, that in so far as the cleaning is effected by pneumatic means, the cleaning arrangement may be positioned in the fiber-processing machine at whatever location is most suitable, based on considerations of design and convenience; it is necessary only that such cleaning means be pneumatically effective at the regions of contaminant accumulation in question.
  • the pneumatic cleaning arrangement includes a bypass channel opening onto the collecting surface of the spinning chamber, with one or more ventilating passages being provided in a wall of the bypass channel. According to such embodiment, the impurities entrained by the cleaning arrangement will be conveyed out of the spinning chamber through such ventilation passages.
  • the present invention recognizes that fibers intended for conversion into yarn should not be conveyed out of the spinning chamber with the undesired impurities. For this reason, the invention contemplates blocking means which prevent removal from the spinning chamber of fibers intended for the production of yarn, while not interfering with the removal of undesired impurities.
  • the present invention furthermore contemplates a novel method for processing fibrous textile material
  • novel method disclosed herein is intended to eliminate or at least reduce the'problems resulting from contamination by impurities set out above.
  • FIG. 1 is a longitudinal section through the spinning arrangement of the present invention
  • FIG. 2 is a section through the spinning chamber shown in FIG. 1;
  • FIG. 3 is an enlarged sectional view of part of a spinning chamber such as illustrated in FIG. 2;
  • FIG. 4 is a section through a spinning chamber according to the invention, with blocking means included;
  • FIG. 5 is a top plan view of one blocking arrangement that can be used according to the invention.
  • reference numeral 2 generally identifies a spinning chamber, and reference numeral 1 a stationary housing in which such spinning chamber is mounted for rotation.
  • the spinning chamber 2 is provided with a slide wall 3 which merges continually into a fiber-collecting surface 4.
  • Fibrous material which has been carded by suitable carding means enters the spinning mechanism through inlet 6, preferably under the influence of an underpressure prevailing in the spinning chamber during its rotation.
  • the carded fibrous material will feed along slide wall 3, sliding along the same under the influence of centrifugal force resulting from spinning chamber rotation.
  • the fibrous material sliding along wall 3 will become deposited onto a suitably configurated collecting surface, in this exemplary embodiment a collecting surface 4 of annular configuration.
  • Reference numeral 7 designates a deflecting element located in the path of yarn withdrawal.
  • the deflecting element is provided with a rotary friction surface 14 adapted to impart a twist to the yarn being formed.
  • fibrous material- is continuously withdrawn from the collecting surface 4 in form of a yarn.
  • such yarn will travel across rotary friction surface 14, across the top of deflecting element 7 (as seen in FIG. 1 then against the curved entrance mouth of passage 8, and finally up through the passage 8 itself.
  • withdrawal is effected by the action of withdrawing rollers 10, or the like, the withdrawing rollers or their functional equivalents not forming part of the invention.
  • the yarn is wound onto bobbin 11.
  • twist is to be imparted to the yarn, this can be effected by rotary friction surface 14, in cooperation with the spinning motion of chamber 2 itself. That is, as yarn is withdrawn from fibrous ribbon 5 deposited on collecting surface 4, such yarn will be twisted during its passage across surface 14 as a result of rotation of the spinning chamber with respect to the stationary housing, and further as a result of orbiting within the spinning chamber, and with respect to it, of the point of yarn withdrawal, that is the point where such yarn is lifted off the surface 4.
  • the collecting surface 4 and friction surface 14 are both of circular configuration, and the deflecting element 7 has a circular rim projecting radially outwardly from an inwardly positioned supporting portion. It hardly need be stated that a multitude of configurations is possible for defleeting element 7 and that the invention is in no sense restricted tothe specific configurations depicted for illustrative purposes.
  • the bottom of the spinning chamber 2 is generally identified with reference numeral 12.
  • a bypassing channel is provided in the spinning chamber, and generally identified with reference numeral 13.
  • the bypassing channel 13 is of annular configuration. It is bounded from above by the underside of deflecting element 7, and bounded from below by the lower portion of spinning chamber 2. As depicted, it has a radially inner peripheral wall and a radially outer peripheral wall. Disposed along the outer peripheral wall of annular bypass channel I3 is a plurality of ventilation openings or passages I6. To the left in FIG.
  • An opening or passage 16 communicates at one end with annular channel 13, and at its other end with the exterior of the spinning chamber 2.
  • the air escaping through the openings 16 exerts an underpressure in the spinning chamber 2, which influences the feeding of the fibers through tube 6 to sliding wall 3 to collecting surface 4.
  • the camber of wall of collecting surface 4 is so chosen that when fibrous material is fed into the spinning chamber 2 along slide wall 3, the collecting surface 4 will tend to receive therein only the fiber ribbon 5, whereas associated impurities will tend to be entrained in a stream of air, still to be described.
  • Carded fibers to be converted into yarn are fed, together with impurities, through tube 6 to slide wall 3 of rotating spinning chamber 2, under the influence of an air flow caused by the effect of underpressure resulting from the rotary motion of the spinning chamber. These fibers slide along sliding wall 3 to collecting surface 4 where they are deposited as fiber ribbon 5, to be further processed in known manner to finished yarn 9 and wound on bobbin 11.
  • Short fibers, fiber fragments, husks, dust and other impurities present at or in the vicinity of collecting surface 4 are entrained by an air flow.
  • the air flow in question penetrates the point of yarn formation, i.e., the point where yarn is withdrawn from fibrous ribbon 5, and thus also penetrates yarn Q itself, to a certain extent.
  • the air flow, with entrained impurities, having passed across surface 4, then passes through bypass channel 13 and thence through openings 16 to the outlets thereof.
  • the outlets of openings 16 serve to discharge entrained impurities into a suitable collecting arrangement, an impurities receptacle, the atmosphere, or to any other suitable means or location.
  • the collector of impurities is located centrally with respect to the spinning chamber.
  • the yarn 9 is withdrawn from ribbon 5 at a point herein referred to as the point of yarn withdrawal.
  • the point of yarn withdrawal advantageously, is not stationary either with respect to the stationary housing 1 or with respect to the rotating collecting surface 4. Rather, the point of yarn withdrawal orbits about the axis of rotation of spinning chamber 2, in the same direction as that in which chamber 2 spins. Simultaneously, the point of yarn withdrawal performs a rotary motion in which it travels around and along the annular collecting surface 4.
  • the angular velocities of spinning chamber 2 and the point of yarn withdrawal, with respect to the axis of rotation are different.
  • FIG. 3 depicts an embodiment very similar to FIGS. 1 and 2.
  • a first gap a is defined between sliding wall 3 and deflecting element 7 and that a second gap b is defined between deflecting element 7 and collecting surface 4.
  • the relative widths of such gaps are of importance.
  • gap b having a width substantially 1.5 times the width of gap a. It has been found that such relative dimensioning will produce a more intensive air flow past the collecting surface of the spinning chamber 2.
  • the present invention recognizes the possibility of inadvertent and undesired entrainment of fibers not constituting impurities in the aforedescribed stream of air, with resultant removal of said fibers from the spinning chamber, together with the impurities.
  • the spinning chamber 2 can be provided with suitable blocking means which will prevent entrainment of fibers intended to be converted into yarn, while at the same time not interfering with the entrainment of impurities.
  • blocking means are illustrated, by way of example, in FIG. 4.
  • the blocking means are identified by reference numeral 18, and it should be understood that means 18 prevents entrainment of the (longer) fibers intended to be converted into yarn, while not interfering with entrainment of the (shorter) impurities which can freely pass the blocking means.
  • FIG. 5 shows one, and merely an exemplary, form of the blocking means 18. It will be seen that means 18 is here provided in form of spaced projections. The projections are of such configuration, and so spaced, as to facilitate passage therebetween of strong air flows,
  • FIG. 5 is merely exemplary.
  • Blocking means 18 may also comprise racks, a mesh, a grid, or the like.
  • the means 18 is shown mounted on deflecting element 7, it may just as well be mounted on the sliding wall 3, in the channel 13, or at another suitable location in the spinning chamber.
  • the advantage of the method and device according to the present invention consists particularly in that it is unnecessary to interrupt the spinning process for the purpose of cleaning, and that surveillance by an operator and manual adjustment are almost completely obviated.
  • the cleaning of the collecting surface as well as of the whole inner surface of the spinning chamber is effected continuously and automatically, and simultaneously with the spinning operation itself.
  • the cleaning is effected with a constant intensity, and reliably, without the need for expensive devices.
  • the quality of the yarn produced is excellent, its appearance good, and its strength actually improved. Likewise, yarn breakage is far less extensive, and productivity thereby increased.
  • the device according to the invention operates reliably at high as well as at lower operational speeds, while maintaining constant spinning conditions.
  • Self-cleaning spinning arrangement for use in textile machines, particularly open end spinning machines, comprising a housing; a rotatable spinning chamber mounted for rotation in said housing and having a fibercollecting surface; supply means for supplying carded fibrous material, together with incidental impurities, for deposition onto said collecting surface in the form of a fiber ribbon which becomes converted into a yarn during operation of said spinning chamber; withdrawal means for withdrawing such yarn from said collecting surface along a yarn withdrawal path; and pneumatic cleaning means for continuously entraining and removing said impurities from said spinning chamber during said conversion of said fiber ribbon into a yarn, comprising a bypass channel opening onto said collecting surface and at least one ventilation passage provided in a lateral wall of said bypass channel, said bypass channel and said ventilation passage cooperating for establishing a passage for escape of a pneumatic medium with entrained impurities from said collecting surface and said spinning chamber.
  • said blocking means comprises spaced projections permitting passage of air therebetween but preventing passage of fibrous material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00208662A 1970-12-16 1971-12-16 Self-cleaning spinning arrangement for use with textile machines Expired - Lifetime US3798886A (en)

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Application Number Priority Date Filing Date Title
CS8480A CS162051B1 (cs) 1970-12-16 1970-12-16

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US (1) US3798886A (cs)
CH (1) CH535847A (cs)
CS (1) CS162051B1 (cs)
DE (1) DE2157189A1 (cs)
FR (1) FR2117952B1 (cs)
GB (1) GB1363896A (cs)
IT (1) IT943915B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918248A (en) * 1973-01-27 1975-11-11 Toyoda Automatic Loom Works Mechanism for driving a spinning rotor of the open-end spinning apparatus
US3952494A (en) * 1973-10-24 1976-04-27 Vyzkumny Ustav Bavlnarsky Open-end spinning unit with a spinning rotor
US3952493A (en) * 1974-02-20 1976-04-27 Igor Stepanovich Khomyakov Apparatus for ringless spinning of fibers
US4005568A (en) * 1975-11-18 1977-02-01 The United States Of America As Represented By The Secretary Of Agriculture Self-cleaning open-end yarn spinning apparatus
US4154052A (en) * 1978-02-08 1979-05-15 Dixie Yarns, Inc. Automatic cleaning system for open-end spinning apparatus
US4241572A (en) * 1978-05-09 1980-12-30 Societe Alsacienne De Constructions Mechaniques De Mulhouse Rotors of freed-fiber spinning devices
US4731987A (en) * 1986-06-27 1988-03-22 Vyzkumny Ustav Bavlnarsky Open-end rotor spinning unit
CN107938033A (zh) * 2017-11-17 2018-04-20 东华大学 牛角瓜纤维的成条装置和成条方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2364261C3 (de) * 1973-12-22 1982-12-23 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Faserzuführvorrichtung für eine mit Unterdruck arbeitende Offen-End-Spinnvorrichtung
DE2408195C3 (de) * 1974-02-20 1982-03-04 Kostromskoe special'noe konstruktorskoe bjuro tekstil'nych mašin, Kostroma Offenend-Spinneinrichtung
IT1205247B (it) * 1981-06-10 1989-03-15 Paolo Fioratti Dispositivo estrattore per incrementare e regolare la ventilazione naturale in edifici industriali
GB2129840A (en) * 1982-11-12 1984-05-23 John James Stamp Open-end spinning rotors

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163976A (en) * 1962-05-25 1965-01-05 Alsacienne Constr Meca Spinning device
US3357168A (en) * 1965-12-07 1967-12-12 Vyzk Ustav Bavinarsky Spinning chamber air outlet
US3360917A (en) * 1965-12-07 1968-01-02 Vyzk Ustav Bavlnarsky Fiber feeding device for a rotary spinning chamber
US3367099A (en) * 1966-03-05 1968-02-06 Vyzk Ustav Bavinarsky Sealing arrangement for a spinning apparatus
US3440812A (en) * 1966-10-11 1969-04-29 Vyzk Ustav Barlnarsky Method and apparatus for the continuous ringless spinning of yarn from separated staple fibers in a rotating spinning chamber
US3447298A (en) * 1967-01-31 1969-06-03 Maremont Corp Turbine spinning apparatus
US3524312A (en) * 1966-08-11 1970-08-18 Schubert & Salzer Maschinen Method and apparatus for cleaning rotary spinning chamber
US3557542A (en) * 1968-04-25 1971-01-26 Lev Ivanovich Oskin Twisting and forming device for pneumatic and mechanical spinning
US3597911A (en) * 1966-08-24 1971-08-10 Rieter Ag Maschf Method and apparatus for cleaning open-end spinning devices

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163976A (en) * 1962-05-25 1965-01-05 Alsacienne Constr Meca Spinning device
US3357168A (en) * 1965-12-07 1967-12-12 Vyzk Ustav Bavinarsky Spinning chamber air outlet
US3360917A (en) * 1965-12-07 1968-01-02 Vyzk Ustav Bavlnarsky Fiber feeding device for a rotary spinning chamber
US3367099A (en) * 1966-03-05 1968-02-06 Vyzk Ustav Bavinarsky Sealing arrangement for a spinning apparatus
US3524312A (en) * 1966-08-11 1970-08-18 Schubert & Salzer Maschinen Method and apparatus for cleaning rotary spinning chamber
US3597911A (en) * 1966-08-24 1971-08-10 Rieter Ag Maschf Method and apparatus for cleaning open-end spinning devices
US3440812A (en) * 1966-10-11 1969-04-29 Vyzk Ustav Barlnarsky Method and apparatus for the continuous ringless spinning of yarn from separated staple fibers in a rotating spinning chamber
US3447298A (en) * 1967-01-31 1969-06-03 Maremont Corp Turbine spinning apparatus
US3557542A (en) * 1968-04-25 1971-01-26 Lev Ivanovich Oskin Twisting and forming device for pneumatic and mechanical spinning

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918248A (en) * 1973-01-27 1975-11-11 Toyoda Automatic Loom Works Mechanism for driving a spinning rotor of the open-end spinning apparatus
US3952494A (en) * 1973-10-24 1976-04-27 Vyzkumny Ustav Bavlnarsky Open-end spinning unit with a spinning rotor
US3952493A (en) * 1974-02-20 1976-04-27 Igor Stepanovich Khomyakov Apparatus for ringless spinning of fibers
US4005568A (en) * 1975-11-18 1977-02-01 The United States Of America As Represented By The Secretary Of Agriculture Self-cleaning open-end yarn spinning apparatus
US4154052A (en) * 1978-02-08 1979-05-15 Dixie Yarns, Inc. Automatic cleaning system for open-end spinning apparatus
WO1979000604A1 (en) * 1978-02-08 1979-08-23 Dixie Yarns Automatic cleaning system for open-end spinning apparatus
US4241572A (en) * 1978-05-09 1980-12-30 Societe Alsacienne De Constructions Mechaniques De Mulhouse Rotors of freed-fiber spinning devices
US4731987A (en) * 1986-06-27 1988-03-22 Vyzkumny Ustav Bavlnarsky Open-end rotor spinning unit
CN107938033A (zh) * 2017-11-17 2018-04-20 东华大学 牛角瓜纤维的成条装置和成条方法
CN107938033B (zh) * 2017-11-17 2020-06-12 东华大学 牛角瓜纤维的成条装置和成条方法

Also Published As

Publication number Publication date
FR2117952B1 (cs) 1974-06-07
CS162051B1 (cs) 1975-07-15
CH535847A (de) 1973-04-15
GB1363896A (en) 1974-08-21
DE2157189A1 (de) 1972-07-06
IT943915B (it) 1973-04-10
FR2117952A1 (cs) 1972-07-28

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