US3792575A - Method of and apparatus for separating impurities from fibers during cleaning of the fibers - Google Patents

Method of and apparatus for separating impurities from fibers during cleaning of the fibers Download PDF

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Publication number
US3792575A
US3792575A US00237003A US3792575DA US3792575A US 3792575 A US3792575 A US 3792575A US 00237003 A US00237003 A US 00237003A US 3792575D A US3792575D A US 3792575DA US 3792575 A US3792575 A US 3792575A
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United States
Prior art keywords
combing
cleaning
fibers
out roller
zone
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Expired - Lifetime
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US00237003A
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English (en)
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C Doudlebsky
A Cap
F Jaros
F Ferkl
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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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/36—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls with means for taking away impurities

Definitions

  • ABSTRACT Method of and apparatus for separating impurites from fibers during their cleaning between the zone of combing-out and the zone of doffing during separating which precedes the spinning of the fibers by the openend method.
  • a cleaning slot guides an air stream onto the combing-out roller of the cleaning mechanism, said air stream driving the impurities into a collecting area, while preventing the separated fibers from flying away.
  • the apparatus shown comprises a separating device of a ringless spinning unit, with a cleaning slot between the combing-out zone and the doffing zone.
  • the body of the separating device comprises a cleaning chamber with a cleaning hole forming a cleaning slot into which the tips of the combing-out roller project, there being a separating channel at the one side of the cleaning hole oriented with respect to said cleaning hole, the other side bearingv a reflecting wall and an adjacent exhaust hole.
  • the present invention relates to a method of and an apparatus for separating impurities from fibers during their cleaning between the zone of combing-out and the zone of doffing during a separating operation that precedes spinning the fibers by the open-end method.
  • the apparatus for performing the method comprises a separating device of a ringless spinning unit with a cleaning slot between the fiber combing zone and the fiber doffing zone.
  • Fibrous material spun on ringless spinning machines contains impurities, such as c'rushed husks, leaves, stems, seeds, dust, buds, short fibers, agglomerated and caked fibers, and chemical contaminations. Such ingredients are most undersirable for the product leaving the spinning machine the yarn. Moreover, they gradually fill in the working zone of the spinning machine, impair the stability of the spinning regime, and thus also impair the quality of the spun yarn.
  • these devices operate upon the principle of a slot arranged in the separating apparatus either be tween the zone of combing out the sliver and the zone ofdoffing the fibers, or following the fiber doffing zone.
  • these cleaning slots some of the impurities are removed; the effectiveness of these slots is determined, among other factors, by the length of their circumference which, however, can not be increased arbitrarily because of the danger of fibers flying away.
  • the said impurities are separated in this cleaning slot, the effectiveness of this solution also being conditioned by the length of the cleaning slot. Thanks to a suitable chosen length and position of the cleaning slot with respect to the combing-out zone, the impurities are released at the beginning of this slot, so that neither the shape of its opposite limiting edge nor the angle included by this edge and the fiberizing roller,
  • an air stream is directed to the combing-out roller through the cleaning slot, allowing the removed impurities to I leave, while preventing the separated fibers from flying away.
  • a chamber with a cleaning hole is providedin the body of the separating apparatus, forming a cleaning slot into which the tips of the combing-out roller project while at the one side of the cleaning hole there is formed a separating channel oriented with respect to said cleaning hole, the other side bearing a reflecting wall with the adjacent exhaust hole.
  • a further feature of the invention is that in that one wall of the separating channel is formed by a part of the wall of the recess in the body of the separating device, and the opposite wall is formed by the directing wall formed by bending the cut-through part of the cleaning chamber.
  • the edge of the reflecting wall turned to the combing-out roller may have the form of a cutting edge.
  • Advantageous embodiments have a rounded-off edge of the reflecting wall turned to the combing-out roller; alternatively, the edge of the reflecting wall turned to the combing-out roller is partially formed by a sloping wall including a predetermined angle with the adjacent part of the combing-out roller, while said sloping wall passes over, at the one hand, to the: reflecting wall, and at the other hand to the arcuate wall.
  • a preferred embodiment of the apparatus has a hole arranged in the cleaning chamber coaxially with the exhaust hole; where the wall of the cleaning chamber is deflected the said hole extends into the zone of action of the exhaust hole.
  • edge of the reflecting wall adjacent to the combing-out roller is made of anti-abrasive material, e.g., fused corundum, etc.
  • FIG. l is a view in section of the separating device including the spinning chamber
  • FIG. 2 is a fragmentary sectional view of the cleaning chamber
  • FIG. 3 is a view in section of the cleaning chamber, the section being taken along the line 3 -3 in FIG. 2;
  • FIG. 4 is a view similar to FIG. 3 of another embodiment of the lateral wall of the cleaning chamber
  • FIG. 5 is a view .similar to FIG. 2 showing another embodiment of the cleaning chamber
  • FIGS. 6 9, incl. show four different profiles, re-
  • FIG. is a view in perspective of the cleaning chamber.
  • a combing-out roller 11 is accomodated in an appropriate recess with an adjacent feeding roller 12 for feeding the sliver 2 of staple fibers to the needle covered working surface of the combing-out roller 11.
  • the sliver 2 enters the separating device through a condensing funnel 13 and is resiliently pressed against the feeding roller 12 by a pressure shoe 14.
  • the combing and the feeding rollers l1, 12 are driven by known and, consequently, not illustrated means.
  • the combing-out roller 11 projects into the outlet channel the inlet of which opens into the free surrounding atmosphere and the outlet of which is arranged in the lateral cylindrical wall of a projection 16 extending into-the known spinning chamber 3 for spinning by the open-end method.
  • the body 1 of the separating device comprises the cleaning chamber 4 with a cleaning hole 40 connecting the area of the cleaning chamber 4 with the area accomodating the combing-out roller 11 in such a way that the tips 111 of said combing-out roller partially project into the space of the cleaning chamber 4 through the cleaning hole 40 (FIG. 2).
  • the cleaning hole 40 represents, basically, the cleaning slot for the passage of impurities, as will be described in more detail hereinafter.
  • a separating channel 41 orientedtoward the cleaning hole 40, a preferred embodiment of said channel 41 having one side formed as a part of the wall 10 of the recess in body 1, said recess accommodating the cleaning chamber 4.
  • the other side the'one opposite the separating channel 41 is formed by the .directing wall 42 formed by bendingthe cut-through part of the cleaning chamber 4 upwardly.
  • the separating channel 41 is connected with the surrounding atmosphere.
  • the cleaning chamber 4 is limited by the reflecting wall 43 linked with the sucking part 44, part 44 being connected to a source of vacuum (not shown).
  • the wall 45 opposite the reflecting wall 43 can advantageously be provided with an opening 451 communicating with the atmosphere, as shown.
  • one side of 47 of the cleaning chamber 4 is open; the other side is closed by the wall 46 which is preferably inclined downwardly away from the cleaning hole 40 toward the zone of influence of the sucking hole 44.
  • the end of the reflecting wall 43 confronting the combing-out roller 11 is formed as an edge 431 (FIGS. 2, 5, and 6). Also a rounded-off termination 432 (FIG. 7) is possible, or such termination which is partially formed with a sloping wall 433 (FIG. 8) including a predetermined angle with the adjacent part of the combing-out roller 11, while the sloping wall 433 passes over, at the one hand, to the reflecting wall 43 with the radius R and, at the other hand, to the arcuated wall 434 (FIG. 9).
  • the said termination of the reflect wall 43 is preferably made of abrasion resistant material, such as fused corundum, etc.
  • FIG. 4 there is inserted a bent orifice plate 48 in the part corresponding to open side 47 in FIG. 3, whereby partially to close such opening.
  • the cleaning chamber 4 has a shape substantially circular in section; naturally, a good deal of different variants of this cleaning chamber are possible.
  • the above-described apparatus operates as follows.
  • the sliver 2 of staple fibers is fed by the feeding roller 12 to the rotating combing-out roller 11.
  • the combing tips 111 of roller 11 comb the individual fibers 21 from the sliver 2 within the combing-out zone and separate them.
  • the fibers 21 are delivered by combined pneumatic and mechanical effect into the doffing zone C (FIG. 1) where they are taken into the outlet channel 15, through which they leave the separating device and enter the rotating spinning chamber 3 wherein they are transformed to yarn in a known way by the open-end method.
  • a certain kinetic energy has been imparted to such impurities by the combing-out roller 11, and so they are shot through the cleaning hole 40 into the cleaning chamber 4, in spite of an air stream beeing directed to the combing-out roller 11 through the separating channel 41 in the zone of the cleaning hole 40.
  • This stream of air permits the said impurities to pass, yet prevents the fibers 21 that are being combed out from flying into the cleaning chamber, having even the opposite effect of holding the fibers 21 against the surface of the combing-out roller 11.
  • the majority of the impurities 22 strike against the reflecting wall 43 in the cleaning chamber 4, and thus are brought under the effect of the vacuum inlet opening 451 connected with the surrounding atmosphere.
  • the required orientation of the impurities towards the sucking hole 44 is further supported by air streaming through the open part 47 (FIG. 3) of the cleaning chamber 4 and also by the inclined wall 46 opposite the open part 47.
  • the bent orifice plate 48 employed in the embodiment of FIG. 4 advantageously aids this action.
  • the improvement which comprises guiding an air stream from the atmosphere onto the combing-put roller by a cleaning slot, driving the impurities by said air stream into a collecting area and removing them therefrom,
  • preventing the separated fibers from flying away into roller has the form of a cuttingedge
  • edge of the reflecting wall confronting the combing-out roller is partially formed by a sloping wall disposed at a predetermined angle with the adjacent part of the body with a cleaning chamberwith a cleaning hole forming a cleaning slot into which the tips of the comb ing-out roller project at the one side of the cleaning hole, there being a separating channel connected to said cleaning hole at the other side of the cleaning hole, and there being a reflecting wall, the reflecting wall having an exhaust port therein.
  • one wall of the separating channel is formed by a part of the wall of the recess in the body of the separating device, and the opposite wall is formed by the directing wall, the directing wall being in the form ofa bent flap having its free edge confronting and spaced from the combing out rollet.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US00237003A 1971-03-24 1972-03-22 Method of and apparatus for separating impurities from fibers during cleaning of the fibers Expired - Lifetime US3792575A (en)

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CS2138A CS162072B1 (it) 1971-03-24 1971-03-24

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US (1) US3792575A (it)
JP (1) JPS5523931B1 (it)
CH (1) CH539694A (it)
CS (1) CS162072B1 (it)
DE (1) DE2210508A1 (it)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884028A (en) * 1972-06-28 1975-05-20 Fritz Stahlecker Apparatus for removing impurities from fibers
US3892063A (en) * 1972-06-07 1975-07-01 Vyzk Ustav Bavlnarsky Spinning machine construction
US3922839A (en) * 1973-05-25 1975-12-02 Daiwa Spinning Co Ltd Device for preventing accumulation of fibers in a spinning machine
US3924397A (en) * 1973-11-09 1975-12-09 Fritz Stahlecker Apparatus for removing impurities from fibrous material
US3953961A (en) * 1973-10-24 1976-05-04 Parks-Cramer (Great Britain), Ltd. Method and apparatus for spinning yarns on open-end spinning machines and pneumatically removing fiber and trash waste incident to spinning
US3959961A (en) * 1973-11-02 1976-06-01 Fritz Stahlecker Apparatus for removing impurities from fibrous material
US3986327A (en) * 1973-11-05 1976-10-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Separation of dirt from fibers in spinning machine
US4009562A (en) * 1975-02-14 1977-03-01 Rieter Machine Works, Ltd. Method and apparatus for eliminating impurities from an open-end spinning machine
US4036002A (en) * 1973-11-01 1977-07-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Dirt removal in spinning device
US4041687A (en) * 1975-04-02 1977-08-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for removing impurities separated from fibers in open end spinning unit
US4142356A (en) * 1976-10-27 1979-03-06 Schubert & Salzer Open-end spinning apparatus
US4201037A (en) * 1976-10-27 1980-05-06 Schubert & Salzer Method and apparatus for cleaning fibrous material
US4204393A (en) * 1977-12-27 1980-05-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakucho Dust removing mechanism in open-end spinning frame
US4308717A (en) * 1979-02-19 1982-01-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Dust removing mechanism in open-end spinning frame
US4495762A (en) * 1982-03-04 1985-01-29 Vyzkumny Ustav Bavlnarsky Apparatus for separating fibers in open-end spinning units
US4852340A (en) * 1987-02-13 1989-08-01 Vyzkumny Ustav Bavlnarsky Fiber separating device
US5454219A (en) * 1993-04-02 1995-10-03 W. Schlafhorst Ag & Co. Means for providing air flow in a trash removal chamber of an open-end spinning unit
US5481862A (en) * 1993-10-09 1996-01-09 W. Schlafhorst Ag & Co. Pneumatically operated debris removal device for an open-end spinning device
US5809766A (en) * 1996-05-08 1998-09-22 Stahlecker; Gerd Device for cleaning fiber material in an open-end spinning aggregate
US5832710A (en) * 1995-12-01 1998-11-10 W. Schlafhorst Ag & Co. Open-end spinning frame with dirt removal device
US6035624A (en) * 1997-11-21 2000-03-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber transporting apparatus for a rotor type open end fine spinning machine
CN107190374A (zh) * 2017-07-13 2017-09-22 浙江理工大学 一种用于转杯纺纱机的排杂分梳装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591677U (ja) * 1982-06-28 1984-01-07 マツダ株式会社 自動車用フロントフエンダの取付構造
CS268481B1 (en) * 1988-09-07 1990-03-14 Vaclav Divis Singling-out device of rotor spinning frame

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116586A (en) * 1960-08-22 1964-01-07 Deering Milliken Res Corp Bobbin handling arrangement
US3357535A (en) * 1966-07-11 1967-12-12 Deering Milliken Res Corp Apparatus for simultaneously donning a plurality of empty bobbins
US3360917A (en) * 1965-12-07 1968-01-02 Vyzk Ustav Bavlnarsky Fiber feeding device for a rotary spinning chamber
US3550368A (en) * 1967-08-30 1970-12-29 Nuova San Giorgio Spa Automatic spinning machine having a device for the automatic doffing of the bobbins and replacing of the tubes
US3626681A (en) * 1968-08-08 1971-12-14 Toyoda Automatic Loom Works Ringless spinning machine
US3627584A (en) * 1969-06-10 1971-12-14 Parks Cramer Ltd Method for pneumatically cleaning open-end spinning machines
US3698175A (en) * 1970-03-27 1972-10-17 Vyzk Ustav Bavlnarsky Spinning machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116586A (en) * 1960-08-22 1964-01-07 Deering Milliken Res Corp Bobbin handling arrangement
US3360917A (en) * 1965-12-07 1968-01-02 Vyzk Ustav Bavlnarsky Fiber feeding device for a rotary spinning chamber
US3357535A (en) * 1966-07-11 1967-12-12 Deering Milliken Res Corp Apparatus for simultaneously donning a plurality of empty bobbins
US3550368A (en) * 1967-08-30 1970-12-29 Nuova San Giorgio Spa Automatic spinning machine having a device for the automatic doffing of the bobbins and replacing of the tubes
US3626681A (en) * 1968-08-08 1971-12-14 Toyoda Automatic Loom Works Ringless spinning machine
US3627584A (en) * 1969-06-10 1971-12-14 Parks Cramer Ltd Method for pneumatically cleaning open-end spinning machines
US3698175A (en) * 1970-03-27 1972-10-17 Vyzk Ustav Bavlnarsky Spinning machine

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892063A (en) * 1972-06-07 1975-07-01 Vyzk Ustav Bavlnarsky Spinning machine construction
US3884028A (en) * 1972-06-28 1975-05-20 Fritz Stahlecker Apparatus for removing impurities from fibers
US3922839A (en) * 1973-05-25 1975-12-02 Daiwa Spinning Co Ltd Device for preventing accumulation of fibers in a spinning machine
US3953961A (en) * 1973-10-24 1976-05-04 Parks-Cramer (Great Britain), Ltd. Method and apparatus for spinning yarns on open-end spinning machines and pneumatically removing fiber and trash waste incident to spinning
US4036002A (en) * 1973-11-01 1977-07-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Dirt removal in spinning device
US3959961A (en) * 1973-11-02 1976-06-01 Fritz Stahlecker Apparatus for removing impurities from fibrous material
US3986327A (en) * 1973-11-05 1976-10-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Separation of dirt from fibers in spinning machine
US3924397A (en) * 1973-11-09 1975-12-09 Fritz Stahlecker Apparatus for removing impurities from fibrous material
US4009562A (en) * 1975-02-14 1977-03-01 Rieter Machine Works, Ltd. Method and apparatus for eliminating impurities from an open-end spinning machine
US4041687A (en) * 1975-04-02 1977-08-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for removing impurities separated from fibers in open end spinning unit
US4142356A (en) * 1976-10-27 1979-03-06 Schubert & Salzer Open-end spinning apparatus
US4201037A (en) * 1976-10-27 1980-05-06 Schubert & Salzer Method and apparatus for cleaning fibrous material
US4204393A (en) * 1977-12-27 1980-05-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakucho Dust removing mechanism in open-end spinning frame
US4308717A (en) * 1979-02-19 1982-01-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Dust removing mechanism in open-end spinning frame
US4495762A (en) * 1982-03-04 1985-01-29 Vyzkumny Ustav Bavlnarsky Apparatus for separating fibers in open-end spinning units
US4852340A (en) * 1987-02-13 1989-08-01 Vyzkumny Ustav Bavlnarsky Fiber separating device
US5454219A (en) * 1993-04-02 1995-10-03 W. Schlafhorst Ag & Co. Means for providing air flow in a trash removal chamber of an open-end spinning unit
US5481862A (en) * 1993-10-09 1996-01-09 W. Schlafhorst Ag & Co. Pneumatically operated debris removal device for an open-end spinning device
US5832710A (en) * 1995-12-01 1998-11-10 W. Schlafhorst Ag & Co. Open-end spinning frame with dirt removal device
US5809766A (en) * 1996-05-08 1998-09-22 Stahlecker; Gerd Device for cleaning fiber material in an open-end spinning aggregate
US6035624A (en) * 1997-11-21 2000-03-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber transporting apparatus for a rotor type open end fine spinning machine
CN107190374A (zh) * 2017-07-13 2017-09-22 浙江理工大学 一种用于转杯纺纱机的排杂分梳装置
CN107190374B (zh) * 2017-07-13 2023-10-20 浙江理工大学 一种用于转杯纺纱机的排杂分梳装置

Also Published As

Publication number Publication date
CS162072B1 (it) 1975-07-15
CH539694A (de) 1973-07-31
DE2210508A1 (de) 1972-10-05
JPS5523931B1 (it) 1980-06-26

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