US3750380A - Device for separating fibrous material - Google Patents

Device for separating fibrous material Download PDF

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Publication number
US3750380A
US3750380A US00207835A US3750380DA US3750380A US 3750380 A US3750380 A US 3750380A US 00207835 A US00207835 A US 00207835A US 3750380D A US3750380D A US 3750380DA US 3750380 A US3750380 A US 3750380A
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US
United States
Prior art keywords
chamber
lubricant
underpressure
bearing arrangement
roller
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
US00207835A
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English (en)
Inventor
M Mladek
B Burget
L Bures
J Rajnoha
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
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Elitex Zavody Textilniho
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.)
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Publication date
Application filed by Elitex Zavody Textilniho filed Critical Elitex Zavody Textilniho
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Publication of US3750380A publication Critical patent/US3750380A/en
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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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • a carding roller is located [30] Foreign Application Priority Data within the chamber and is mounted for rotation by a Dec. 22,1970 Czechoslovakia 8660/70 bearing g e h c s tself at least partially located in the chamber.
  • the bearing arrangement has [52] [1.8. CI. 57/58.95 at least n p n fr m which lubric n may l ak and [51] Int. Cl D0lh 1/12 then, under the influence cf the prevailing underpres- [58] Field of Search 57/58.89, 58.91, sure, be sucked into a t th th fi r us ma a 57/5395 being separated.
  • a pressure-compensation arrangement is provided which [56] R fer n Cit d is adapted to prevent the lubricant from coming under UNITED STATES PATENTS the influence of the underpressure.
  • the present invention relates to devices for separating fibrous materials, such as are conventionally used with textile machines.
  • Devices of the type in question are usually operated in conjunction with an adjoining spinning chamber. Ordinarily, they comprise a housing, a carding roller rotatable in the housing, ahd means for delivering fibrous material to the carding roller and then, after fiber separation, to the spinning chamber.
  • the bearing a rang ment whi h moun the cardin roller requires the use of grease or another suilablfi lubricant, and a certain amount of leakage from the bearing arrangement is inevitable. If, now, the imperfect sealing between bearing and housing has resulted in aflow of air past the bearing, the leaked lubricant will be entrained, in the form of dispersed droplets or fluff," in such flow of air. The lubricant will thereupon be sucked with such stream into the carding chamber proper, where it will contact the fibrous material being separated. This is extremely undesirable. I
  • Fibers thusly contaminated by lubricant from the bearing means will suffer greatly in appearance and, depending on the materials involved, also in strength.
  • the fibers will be of uneven quality and have a sticky surface, to which will adhere further contaminants such as may be present in the carding chamber.
  • the weakening of the fibers results in an increased number of yarn breakages, and the space surrounding the carding roller will gradually become clogged by that part of the lubricant which does not actually reach the fibers.
  • the bearing arrangement, itself, will also suffer, inasmuch as it will continually run short of lubricant.
  • a further object of the invention is to provide such a fiber-separating device'in which 'lubricant leaked from the carding-roller bearing arrangement is not sucked into contact with the fibrous material being processed.
  • a device for separating fibrous material for use with textile machines which comprises a housing defining a chamber which, during operation of the device, is maintained at an underpressure.
  • a fiber separating roller is located within the chamber and is mounted for rotation by a bearing arrangement which is positioned at least partially in the chamber.
  • the bearing arrangement has at least one portion from which lubricant may leak and then, under the influence of the developed underpressure, be sucked into contact with the fibrous material being separated.
  • the novel device includes a pressurecompensating arrangement adapted to prevent the leaked lubricant from coming under the influence of the prevailing underpressure.
  • the construction of the pressure-compensation arrangement is such that it effectively eliminates the underpressure in the vicinity of those bearing arrangement portions from which lubricant might leak. At the same time, the novel pressure-compensation arrangement will not detrimentally affect the underpressure which is necessary at other locations within the housing for the purpose of doffing separated fibers.
  • the pressure-compensation arrangement comprises a channel system communicating with the carding chamber and with the ambient atmosphere.
  • the channel system has at least one section opening directly upon a surface of the bearing arrangement, at a location intermediate the carding roller and the portions from which lubricant may leak.
  • sealing means is provided of a simple and advantageous nature which effectively seals those portions of the bearing arrangement from which leaked lubricant might be brought by gravity into regions within the housing where the aforedescribed underpressure prevails.
  • the sealing means contemplated may be provided in a variety of forms and, advantageously, is associated with a collecting chamber within the fiber-separating housing. This collecting chamber serves to collect and retain leaked lubricant which, as shall be seen, issues from the bearing arrangement particularly during start-up of the carding device.
  • FIG. 1 is a horizontal section through a somewhat schematically illustrated device according to the present invention.
  • FIG. 2 is a vertical longitudinal section through the device of FIG. 1.
  • reference numeral 1 identifies a carding roller mounted in a housing composed of housing sections 6 and 3.
  • the carding roller 1 is usually mounted for rotation about an upright axis 101 on antifriction bearing arrangement 2 provided in bearing housing 16.
  • the bearing arrangement is, in turn, connected with a suitable driving member 4 of entirely conventional nature, which may itself be a drive, or else connected in non-illustrated manner with a drive. It will be understood. of course, that it is driving member 4 which imparts rotational motion to the carding roller 1.
  • the carding roller 1 is provided on its circumferential surface with needles, or other carding means, 8. De fined between carding roller 1 and the housing in which it is positioned is a clearance 5, best seen in FIG. 2.
  • a feeding mechanism 7 feeds fibrous sliver to be separated onto the teeth 8 of the roller 1.
  • Feeding tube 9 extends tangentially of the carding roller 1 and is provided at one end with an opening 11 communicating with the ambient atmosphere and, at its other end, with an opening communicating with spinning chamber 10 of an adjoining spinning stage.
  • a filter 12 is provided across the opening 11 of the feeding tube 9, so as to prevent the entrance of impurities and contaminants present in the atmosphere.
  • fllter l2 additionally extends across a channel 14, which channel constitutes part of the pressure-compensation arrangement.
  • Channel 14 extends radially inwardly of the housing section 3, and opens into a peripheral hollow 15 which surrounds a circumferential portion of bearing housing 16. Peripheral hollow 15, in turn, merges into clearance 5, mentioned before.
  • This arrangement in a preferred embodiment, is a labyrinth seal provided on one or the other of the surfaces.
  • FIG. 2 shows the labyrinth seal provided on the inner peripheral surface of the axial bore, but it could equally well be provided on the outer 'peripheral surface of the housing 16.
  • other sealing arrangements may be employed, depending on a variety of factors, such as whether axis 101 is oriented in horizontal or vertical direction, etc.
  • Such other sealing arrangements include, for example, ring and sleeve seals, as well as other conventional sealing means.
  • labyrinth sealing arrangement 17 immediately adjoins a collecting chamber 18 formed as part of the axial bore just described.
  • axis 101 of bearing, roller and housing may be oriented in any of various directions, and not only vertically as shown.
  • axis 101 of bearing, roller and housing may be oriented in any of various directions, and not only vertically as shown.
  • channel 14 has been illustrated, more than one, or even a circumferentially distributed channel system, may be provided.
  • a device for separating fibrous material for use with textile machines, particularly open end spinning machines comprising a housing defining a chamber which, during operation of said device, is maintained at an underpressure; a fiber separating roller located within said chamber; a bearing arrangement mounting said roller for rotation and being positioned at least partially in said chamber, said bearing arrangement having at'least one portion outside said chamber from which lubricant may leak to be potentially sucked into contact with the fibrous material being separated, under the influence of such underpressure; and pressure-compensation means adapted to prevent leaked lubricant from coming under the influence of said underpressure, said pressure-compensation means comprising pressure-compensation channel means having at least one section opening directly upon a surface of said bearing arrangement, at a location intermediate said roller and said at least one portion from which lubricant may leak, and also communicating with air at a pressure higher than said underpressure.
  • a device as defined in claim 2, wherein said pressure-compensation channel means is provided with filter means at the section thereof communicating with the ambient atmosphere.
  • roller is provided with an axial bore in an axial end face thereof, and wherein said bearing arrangement ineludes an additional portion from which lubricant may leak located inwardly of said axial end face of said roller and within said axial bore; and further comprising sealing means preventing said lubricant from issuing out of said bore.
  • sealing means is provided in the form of a labyrinth'seal.
  • said bore includes a portion constituting a collecting chamber inwardly of said sealing means and serving to collect lubricant leaking from said additional portion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US00207835A 1970-12-22 1971-12-14 Device for separating fibrous material Expired - Lifetime US3750380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS8660A CS163838B1 (cs) 1970-12-22 1970-12-22

Publications (1)

Publication Number Publication Date
US3750380A true US3750380A (en) 1973-08-07

Family

ID=5437452

Family Applications (1)

Application Number Title Priority Date Filing Date
US00207835A Expired - Lifetime US3750380A (en) 1970-12-22 1971-12-14 Device for separating fibrous material

Country Status (8)

Country Link
US (1) US3750380A (cs)
JP (1) JPS5149018B1 (cs)
CH (1) CH534226A (cs)
CS (1) CS163838B1 (cs)
DE (1) DE2158731C3 (cs)
FR (1) FR2119021B1 (cs)
GB (1) GB1362883A (cs)
IT (1) IT943917B (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884029A (en) * 1972-06-08 1975-05-20 Vyzk Ustav Bavlinarsky Apparatus for ringless spinning of fibres
US3922839A (en) * 1973-05-25 1975-12-02 Daiwa Spinning Co Ltd Device for preventing accumulation of fibers in a spinning machine
US4144707A (en) * 1976-09-07 1979-03-20 Fritz Stahlecker Open end spinning assembly with an opener roll
US4939897A (en) * 1988-07-29 1990-07-10 Hollingsworth Gmbh Opening cylinder unit for open-end spinning machines
US7038974B2 (en) 2003-10-13 2006-05-02 Daniel Roth & Gerald Genta Haute Horlogerie S.A. Timepiece comprising and annual or perpetual date display mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511044A (en) * 1968-01-19 1970-05-12 Vyzk Ustav Bavlnarsky Method of and apparatus for ringless spinning of fibers
US3624997A (en) * 1968-11-21 1971-12-07 Vyzk Ustav Bavlnarsky Self-cleaning combing roller arrange-ment for a suction spinning chamber
US3624995A (en) * 1969-02-20 1971-12-07 Elitex Zavody Textilniho Method and device for spindleless spinning

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1334507A (fr) * 1962-06-29 1963-08-09 Wauquier Soc Nouv Ets Dispositif pour éviter l'écoulement de graisse des paliers le long d'arbres de transmission verticaux tournant à grande vitesse
CS160108B2 (cs) * 1968-08-08 1975-02-28
GB1265400A (cs) * 1968-11-27 1972-03-01

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511044A (en) * 1968-01-19 1970-05-12 Vyzk Ustav Bavlnarsky Method of and apparatus for ringless spinning of fibers
US3624997A (en) * 1968-11-21 1971-12-07 Vyzk Ustav Bavlnarsky Self-cleaning combing roller arrange-ment for a suction spinning chamber
US3624995A (en) * 1969-02-20 1971-12-07 Elitex Zavody Textilniho Method and device for spindleless spinning

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884029A (en) * 1972-06-08 1975-05-20 Vyzk Ustav Bavlinarsky Apparatus for ringless spinning of fibres
US3922839A (en) * 1973-05-25 1975-12-02 Daiwa Spinning Co Ltd Device for preventing accumulation of fibers in a spinning machine
US4144707A (en) * 1976-09-07 1979-03-20 Fritz Stahlecker Open end spinning assembly with an opener roll
US4939897A (en) * 1988-07-29 1990-07-10 Hollingsworth Gmbh Opening cylinder unit for open-end spinning machines
US7038974B2 (en) 2003-10-13 2006-05-02 Daniel Roth & Gerald Genta Haute Horlogerie S.A. Timepiece comprising and annual or perpetual date display mechanism

Also Published As

Publication number Publication date
CS163838B1 (cs) 1975-11-07
IT943917B (it) 1973-04-10
DE2158731A1 (de) 1972-07-13
JPS5149018B1 (cs) 1976-12-24
GB1362883A (en) 1974-08-07
DE2158731C3 (de) 1981-07-09
FR2119021A1 (cs) 1972-08-04
CH534226A (de) 1973-02-28
FR2119021B1 (cs) 1976-06-04
DE2158731B2 (de) 1980-07-03

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