US3785138A - Spinning unit for open end spinning machine - Google Patents

Spinning unit for open end spinning machine Download PDF

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Publication number
US3785138A
US3785138A US00233095A US23309572A US3785138A US 3785138 A US3785138 A US 3785138A US 00233095 A US00233095 A US 00233095A US 23309572 A US23309572 A US 23309572A US 3785138 A US3785138 A US 3785138A
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United States
Prior art keywords
carding
spinning
chamber
defining
supply channel
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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
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US00233095A
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English (en)
Inventor
J Rajnoha
L Bures
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.)
Elitex Zavody Textilniho
Elitex
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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
    • D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes
    • 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
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor

Definitions

  • ABSTRACT 1 an A spinning unit for use in textile machines, particu- [21] App].
  • No.: 233,095 larly open end spinning machines comprises a carding roller and a spinning chamber.
  • a supply channel is provided for fibers travelling from the carding roller to [30] Foreign Apphcatmn Pnomy Data the spinning chamber.
  • a yarn withdrawal channel is Mar. 26, 1971 Czechoslovakia 71/2211 provided through which yam is Withdrawn from the spinning chamber.
  • At least one detachably mounted [52] US. Cl. 57/58.95],)37/5i.89 expandable wear portion is pmvidw, defining at least [5 I pa of one of the Channels [58] Field of Search 57/58.89, 58.95 l
  • the present invention relates to spinning units for spinning machines, and more particularly to spinning units for open end spinning machines.
  • Open end spinning machines generally comprise a carding chamber including a carding roller mounted for rotation, and a spinning chamber for spinning separated fibrous material into yarn.
  • a supply channel or the like conventionally guides fibrous material separated in the carding chamber towards the spinning chamber.
  • the supply channel in particular will usually have a mouth opening towards the carding roller, and this mouth will be defined at least in part by an edge portion. At least parts of such edge portion are usually very sharp, and constitute a socalled fiber-separating edge. Fibrous material which has been separated by the carding roller will enter the supply channel, usually moved along by a current of air, passing of course through the mouth of the channel. Accordingly, a substantial portion of the separated fibers entering the supply channel will pass across edge portions of the supply channel mouth, and in particular will pass across the so-called fiber-separating edge.
  • edge portions of the supply channel mouth, and particularly the fiber-separating edge will be very much subject to wear.
  • the repeated impact against such relatively sharp edge portions of fibrous material, often including impurities such as shell fragments and the like will quick result in damage to such edge portions.
  • the damage may comprise a general wearing-away, but more disadvantageously occurs in the formation of notches and chinks in these edge portions.
  • fiber agglomerates can very soon clog the supply channel or, after they have built up to a certain extent, may become dislodged and be delivered to the spinning chamber. They may, in that case, become actually incorporated into the finished yarn or, as another possibility, may indirectly affect the yarn quality by clogging the spinning chamber, causing breakages, or otherwise interfering with the spinning operation.
  • the unit is provided with a yarn-withdrawal channel through which the finished yarn is withdrawn, and this channel is usually in part defined by yarn-contact surface portions which are greatly subject to wear.
  • this withdrawal channel and surface portions as have heretofore been provided, it has often been necessary to discard substantial portions of the spinning unit because of a irreparable damage suffered by relatively small surface portions.
  • a spinning unit for use in textile machines, particularly open end spinning machines, comprising carding means for separating fibrous material, spinning chamber means for converting separated fibrous material into yarn, and channel defining means vitenicating with the carding means and spinning chamber means and defining a fiber supply channel through which fibers travel from the carding means to the spinning chamber means, and further defining a yarn withdrawal channel through which yarn is withdrawn from said spinning chamber means, the channel defining means including at least one detachably mounted expendable wear portion defining at least part of one of said channels.
  • yarncontact portions which are most disadvantageously subject to wear may easily and economically be replaced, without discarding large portions of the spinning unit body.
  • FIG. 1 is a sectional view of a spinning unit according to the present invention
  • FIG. 2 is another sectional view of the spinning unit illustrated in FIG. 1
  • FIGS. 2a, 2b illustrate in fragmentary sectional detail view modifications of the detachably mounted expendable wear portion illustrated in FIG. 2;
  • FIG. 3 is a further sectional view of the spinning unit illustrated in FIG. 1,
  • FIG. 4 is a first view of a detachably mounted expendable wear portion of the spinning unit according to the invention.
  • FIG. 5 is a second view of the wear portion shown in FIG. 4.
  • FIG. 6 illustrates the wear portion of FIG. 5 together with an additional component of a spinning unit according to the invention.
  • the spinning unit comprises a housing 1 defining a card chamber 5.
  • a carding roller mounted within the carding chamber for rotation by non-illustrated drive means is a carding roller provided on its peripheral surface with needles, or other suitable carding means.
  • the housing 1 for the carding roller adjoins a spinning chamber whose housing is generally designated by numeral 14.
  • the spinning chamber proper is designated by numeral 14' is mounted for rotation in the housing 14, and comprises a fiber collecting surface 32 onto which separated fibrous material is deposited and from which a yarn is continuously withdrawn.
  • a feed passage 16 extends substantially tangential to the periphery of carding roller 15 and communicates with the atmosphere at its widest end portion.
  • an underpressure of air is maintained in the spinning chamber 14, and this underpressure produces an inward rush of air from the atmosphere through the wider end of feed passage 16.
  • Carding roller 15 rotates in the direction of the arrow in FIG. 2, and separated fibers engaged by the carding roller needles will, as they pass into the feed passage 16, be doffed by the incoming stream of air. Doffed fibers will thereupon be advanced by such air stream through the subsequent portion of feed passage 16 in direction towards the spinning chamber.
  • the fibers 12 will advance through supply channel 10, through guide passage 9, along so-called sliding wall 141 of the rotating spinning chamber 14', and finally be deposited onto the collecting surface 32 of the spinning chamber.
  • the deposited fibers will be converted into yarn 18 and withdrawn through yarn-withdrawal channel 17 (FIGS. 1, 3), and thence through withdrawing tube 23 (see FIG. 3)
  • FIG. 2 shows clearly that wear portion 3, which in accordance with the invention forms part of the channel defining means defines a supply channel 10 constituting an extension of feed passage 16, through which fibers travel from the carding roller to the spinning chamber.
  • FIGS. 1 and 3 show clearly that the wear portion 3 also defines a yarn withdrawal channel 17 through which finished yarn is withdrawn, and into which yarn may also be fed during piecing operations.
  • wear portion 3 may be seen most clearly in FIGS. 4 and 5.
  • the outlet end of withdrawal channel 17, with outlet flange 21, is visible, whereas in FIG. 5 the inlet end of channel 17, with inlet flange 20, can be seen.
  • the inlet portion of channel 17 is seen (in FIG. 3) to be provided with a mouth of generally trumpet-shaped configuration, to facilitate entry into the channel of finished yarn.
  • the discharge outlet of channel 17 (see FIGS. 3, 4) is also provided with a rounded-off portion, to facilitate deflection of yarn travelling therethrough.
  • the housing 1 of the carding arrangement is provided with recessed portions in part receiving and retaining the detachably mounted wear portion 3.
  • portion 3 is accommodated within a recessed portion generally designated by numeral 2, and that recessed portion 2 is configurated to include a flange portion 4.
  • a flange 8 is provided on wall 7 of housing 1, and is of generally circular configuration, in the illustration.
  • Connected to flange 8 by means of screws 33, or in any suitable manner, is a dismountable guide means 9, best seen in FIG. 6.
  • guidemeans 9 defines a guide passage 9 which constitutes an extension of feed channel 10.
  • a monitoring means 24 Adjoining the spinning chamber 14' there is provided a monitoring means 24 (see FIG. 3) provided with an entrance chamber 23 and a withdrawing tube 23.
  • wear portion 3 may be made of a highly abrasionresistant material, such as steel, plastic of the polyamide type, sintered alumina, sintered glass, or another suitable material.
  • the configuration of portion 3, in the illustrated construction, is such that it bears against the edge 46 of opening 2, and also bears against flange portion 4. Furthermore, in FIG. 2, its lower part (as seen in that Figure) bears against the inner wall of guide means 9.
  • the channel 10 of FIG. 2 has a transverse cross-section which decreases in direction towards the spinning chamber.
  • the wear portion of FIG. 2a defines a similar channel 10a, which has a substantially constant transverse cross-section in direction towards the spinning chamber, whereas FIG. 2b shows another such supply channel 1011 which diverges in direction towards the spinning chamber. From FIGS. 4 and 5 it can be clearly seen that the wear portion 3, in the embodiment of FIG. 2, defines a supply channel 10 whose transverse cross-section is of substantially slot-shaped configuration.
  • the supply channel 10 is so oriented as to constitute an extension of the feed passage 16.
  • the supply channel 10 has a mouth (best seen in FIGS. 4 and 6) defined by an edge portion of the wear portion 3, this edge portion including the so-called fiber-separating edge 13, which in conventional constructions is the portion of the spinning unit most subject to wear.
  • the wear portion 3 need not constitute a single member defining both channels 17 and 10. Separate wear portions may be provided for each channel. One wear portion may define one channel and part of a second channel, while a second wear portion defines the remainder of the second channel. Likewise a plurality of wear portions may be provided, each defining only part of a channel. Obviously, by re sorting to such variations, it will be possible to remove only those portions which have actually become worn or damaged to an extent rendering them useless, while not removing other portions which though detachably mounted and expendable have not yet been sufficiently worn.
  • carding chamber and spinning chamber depicted need not be resorted to; ar' rangements having an entirely different configuration are included within the scope of the invention concept, especially if they comprise detachably mounted expendable wear portion such as those described.
  • the relative directions of yarn and fiber travel are merely exemplary.
  • inventive concept is by no means limited in its usefulness to open end spinning machines, nor even to spinning machines in general.
  • the concepts of the invention may advantageously be applied wherever problems of isolated wear exist similar to those discussed.
  • spinning machines having a configuration other than that illustrated it is realized that partsother than the supply and withdrawal channels may be subject to wear. Accordingly, the invention specifically contemplates providing such other spinning unit parts too, in the form of detachably mounted expendable wear portions.
  • a spinning unit for use in textile machines, particularly open end spinning machines comprising carding means for separating fibrous material; spinning chamber means for converting separated fibrous material into yarn; and'channel defining means communicating with said carding means and spinning chamber means and defining a fiber supply channel through which fibers travel from said carding means to said spinning chamber means, and further defining a yarn withdrawal channel through which yarn is withdrawn from said spinning chamber means, said channel defining means including at least one discrete detachably mounted expendable wear portion defining at least part of at least one of said channels.
  • said carding means including a carding chamber, a carding roller mounted for rotation in said chamber, and a feed passage in part defined by the periphery of said carding roller and extending along a given direction, and wherein said supply channel extends along said given direction and forms a continuation of said feed passage, said detachably mounted expendable wear portion defining at least part of said supply channel.
  • said carding means including a carding chamber and a carding roller mounted for rotation in said carding chamber, said supply channel having a mouth opening towards said carding roller, and wherein said expendable wear portion defines at least part of said supply channel and includes an edge portion defining said mouth of said supply channel, at least part of said edge portion constituting a fiber-separating edge.
  • a spinning unit as defined in claim 1 said expendable wear portion defining at least part of said yarn withdrawal channel, and said yarn withdrawal channel having an at least substantially circular crosssection.
  • a spinning unit as defined in claim 1 said supply channel extending substantially in a first direction and said yarn withdrawal channel extending substantially in a second direction defining with said first direction an acute angle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US00233095A 1971-03-26 1972-03-09 Spinning unit for open end spinning machine Expired - Lifetime US3785138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS2211A CS163843B1 (de) 1971-03-26 1971-03-26

Publications (1)

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US3785138A true US3785138A (en) 1974-01-15

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US (1) US3785138A (de)
CS (1) CS163843B1 (de)
DE (1) DE2205319A1 (de)
FR (1) FR2130507A1 (de)
GB (1) GB1336418A (de)
IT (1) IT950749B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834148A (en) * 1972-03-27 1974-09-10 Toyoda Automatic Loom Works Ringless spinning apparatus
US3938310A (en) * 1973-03-08 1976-02-17 Vyzkumny Ustav Bavlnarsky Apparatus for separating fibers in open-end spinning machines
US3986327A (en) * 1973-11-05 1976-10-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Separation of dirt from fibers in spinning machine
DE2524093A1 (de) * 1975-05-30 1976-12-09 Fritz Stahlecker Zufuehr- und aufloeseeinrichtung fuer ein offenend-spinnaggregat
US4024699A (en) * 1974-10-11 1977-05-24 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver resolving apparatus for open-end spinning machines
US4291528A (en) * 1978-11-24 1981-09-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Mounting of fiber supply channel defining means in spinning units of an open end spinning machine
US4879873A (en) * 1987-07-31 1989-11-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Spinning unit in open-end spinning machine
US5111651A (en) * 1989-07-13 1992-05-12 Johann Pohn Open-end spinning device
US5491966A (en) * 1992-07-01 1996-02-20 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for open-end spinning
US5687558A (en) * 1991-07-13 1997-11-18 Hans Stahlecker Fiber supply arrangement for open-end rotor spinning
US5755087A (en) * 1994-11-18 1998-05-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Open-end rotor spinning device
US5937630A (en) * 1993-10-09 1999-08-17 W. Schlafhorst Ag & Co. Open-end spinning device
CN1952232B (zh) * 2005-10-18 2012-02-22 吕特英格纺织机械制造股份公司 由数个通道部件组成纤维通道的端部敞开式纺纱机

Families Citing this family (6)

* 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
DE2800795A1 (de) * 1978-01-09 1979-07-19 Schlafhorst & Co W Faserspeisekanal fuer eine rotorspinnmaschine
CS263525B1 (en) * 1987-05-04 1989-04-14 Safar Vaclav Fibre outlet from unit for fibre opening in spinning chamber by spindleless spinning machines
CS270298B1 (en) * 1987-10-12 1990-06-13 Safar Vaclav Device for fibres loosening and their guiding into spinning chamber
DE102004005429A1 (de) * 2004-02-04 2005-08-25 Saurer Gmbh & Co. Kg Faserleitkanal für eine Offenend-Spinnvorrichtung sowie Verfahren zum Herstellen eines Faserleitkanals
DE102010044181A1 (de) * 2010-11-19 2012-05-24 Maschinenfabrik Rieter Ag Faserkanaleinsatz

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481128A (en) * 1966-08-24 1969-12-02 Schubert & Salzer Maschinen Apparatus for varying spinning characteristics of a rotary chamber spinning machine
US3624995A (en) * 1969-02-20 1971-12-07 Elitex Zavody Textilniho Method and device for spindleless spinning

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481128A (en) * 1966-08-24 1969-12-02 Schubert & Salzer Maschinen Apparatus for varying spinning characteristics of a rotary chamber spinning machine
US3624995A (en) * 1969-02-20 1971-12-07 Elitex Zavody Textilniho Method and device for spindleless spinning

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834148A (en) * 1972-03-27 1974-09-10 Toyoda Automatic Loom Works Ringless spinning apparatus
US3938310A (en) * 1973-03-08 1976-02-17 Vyzkumny Ustav Bavlnarsky Apparatus for separating fibers in open-end spinning machines
US3986327A (en) * 1973-11-05 1976-10-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Separation of dirt from fibers in spinning machine
US4024699A (en) * 1974-10-11 1977-05-24 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver resolving apparatus for open-end spinning machines
DE2524093A1 (de) * 1975-05-30 1976-12-09 Fritz Stahlecker Zufuehr- und aufloeseeinrichtung fuer ein offenend-spinnaggregat
US4291528A (en) * 1978-11-24 1981-09-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Mounting of fiber supply channel defining means in spinning units of an open end spinning machine
US4879873A (en) * 1987-07-31 1989-11-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Spinning unit in open-end spinning machine
US5111651A (en) * 1989-07-13 1992-05-12 Johann Pohn Open-end spinning device
US5687558A (en) * 1991-07-13 1997-11-18 Hans Stahlecker Fiber supply arrangement for open-end rotor spinning
US5491966A (en) * 1992-07-01 1996-02-20 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for open-end spinning
US5581991A (en) * 1992-07-01 1996-12-10 Rieter Ingolstadt Spinnereimaschinenbau Ag Process for open-end spinning
US5937630A (en) * 1993-10-09 1999-08-17 W. Schlafhorst Ag & Co. Open-end spinning device
US5755087A (en) * 1994-11-18 1998-05-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Open-end rotor spinning device
CN1952232B (zh) * 2005-10-18 2012-02-22 吕特英格纺织机械制造股份公司 由数个通道部件组成纤维通道的端部敞开式纺纱机

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Publication number Publication date
CS163843B1 (de) 1975-11-07
GB1336418A (en) 1973-11-07
IT950749B (it) 1973-06-20
DE2205319A1 (de) 1972-10-05
FR2130507A1 (de) 1972-11-03

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