US3826071A - Apparatus for opening slivers of textile fibers - Google Patents

Apparatus for opening slivers of textile fibers Download PDF

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Publication number
US3826071A
US3826071A US00264953A US26495372A US3826071A US 3826071 A US3826071 A US 3826071A US 00264953 A US00264953 A US 00264953A US 26495372 A US26495372 A US 26495372A US 3826071 A US3826071 A US 3826071A
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United States
Prior art keywords
roll
opening
improvement
slivers
feed roll
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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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US00264953A
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English (en)
Inventor
G Grau
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Zinser Textilmaschinen GmbH
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Publication date
Application filed by Zinser Textilmaschinen GmbH filed Critical Zinser Textilmaschinen GmbH
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Publication of US3826071A publication Critical patent/US3826071A/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

  • the working zone of the opening 657,580 9/1900 Woolery 19/96 roll is bounded by a peripheral portion of the feed roll.
  • This invention relates to an apparatus for opening slivers of textile fibers into separate, single fibers in an open-end spinning device.
  • the apparatus is of the type that has a rapidly rotating peripherally toothed opening roll and a rotary feed roll which advances the sliver with the speed of its circumferential speed to the work zone where the sliver is separated into separate, single fibers by the opening roll.
  • the single fibers pulled continuously from the sliver by the opening apparatus are conveyed by means of an air stream into a groove of a very rapidly rotating spinning rotor where the single fibers are spun into the end of the yarn which, in turn, is continuously drawn off the rotor.
  • the sliver has to be separated uniformly in time and the single fibers should not be damaged, for example, ruptured.
  • the invention is an improvement of an opening apparatus which has a rapidly rotating opening roll provided with a multitude of teeth along its periphery for pulling single fibers from the sliver.
  • the periphery of the feed roll is disposed at a small distance (preferably not more than 0.5 mm) from the outermost points of the teeth on the opening roll and further, means are provided to rotate the two rolls in opposite directions.
  • the work zone is bounded by a peripheral portion of the feed roll.
  • the apparatus to separate a sliver into single fibers comprises a housing 9 (the upper side of which is removed for the' sake of clarity) which accommodates an opening roll 10, a feed roll 1 1, a pressure roll 12, a filler body 13 and channels 14 and 15. Through the channel 14 the sliver is introduced to a work zone 16 between the opening roll 10 and the feed roll 11, while the channel 15 serves to guide the single fibers to a spinning rotor, not shown.
  • the provision of components 18, I9 effectively prevents an introduction of foreign bodies into the spinning rotor.
  • the opening roll 10 and the feed roll 11 rotate about stationary, parallel disposed axes.
  • the pressure roll 12 is rotatably supported on a pivotal lever 20 and is continuously pressed against the periphery of the feed roll 11 by a pressure spring 19 for providing a pinching means to grip the sliver (not shown) as it arrives through the channel 14.
  • the periphery of the pressure roll 12 may have an elastic coating, but it may be formed as a relatively inelastic roll, preferably made of steel.
  • the rolls 10, 11 and 12 are of relatively large axial dimensions, as it may be observed, at least for rolls 11 and 12, in FIG. 2.
  • the opening roll 10 has narrow peripheral teeth 22 which are arranged serially in a helix (not shown) and have a sawtooth configuration.
  • the width of each tooth is substantially smaller than the pitch of the helix.
  • the teeth are provided by stamping a relatively thin metal strip which is inserted into a groove cut into a flange 23 of the opening roll 10. Since such a structure is well known, it is not shown in more detail.
  • the periphery of the feed roll 11, as shown in FIG. 2, is provided with a plurality of circumferential, uniformly spaced, parallel grooves 24 separated from one another by relatively narrow lateral walls 25.
  • the grooves 24 have an approximately wedge-shaped cross section.
  • each lateral wall has a circumferentially extending undulating crest line 26 having regularly alternating valleys and peaks. This wavy configuration is identical for each lateral wall 25.
  • a plurality of parallel arranged circumferential grooves 24 it is feasible to provide a single groove which extends along the periphery of the feed roll 11 in a helical manner and has a plurality of turns.
  • each grooved feed roll ensures a particularly gentle opening of the sliver and leaves its fiber diagram practically unchanged.
  • the depth and greatest width of each groove may be 0.2 1.0 mm, preferably 0.4 0.6 mm. It has been further found advantageous to space the grooves (whether individual circumferential grooves or a single helical groove) approximately 1 3 mm, preferably about 2 mm apart, measured from center to center.
  • the valleys and peaks of the crest line 26 of the lateral walls may be in alignment in an axial direction of the feed roll 11 or may be staggered from one wall to an adjacent wall by a constant, relatively small angle.
  • axially adjacent peaks or axially adjacent valleys extend along a line which is disposed at a preferably small angle to an axially parallel generatrix of the geometrical surface determined by said peaks.
  • the axially adjacent teeth 22 of the opening roll 10 may be staggered by a constant angle so that there is obtained an oblique tooth structure formed not by throughgoing teeth but by a staggered arrangement of teeth disposed parallel about the opening roll.
  • an outlet opening 27 which is connected to a vacuum source, not shown, and which serves for drawing away single fibers flying off laterally from the sliver.
  • the space between the opening roll 10, the feed roll 11 and the pressure roll 12 is substantially filled out by a filler body 13 which extends outwardly from said space and which is pivotally held at 29.
  • the filler body 13 leaves open a passage 30 in the aforenoted space for the sliver.
  • the lateral faces of the filler body 13 which are oriented towards the rolls 10, 11 and 12, conform substantially to the curvature of their periphery.
  • the passage 30 of the filler body 13 is laterally bounded by two arms 31 between which, at their base, there extendsa metallic stripper edge 32.
  • the latter extends over the width of the filler body 13 and is pressed against the pressure roll 12 by means of a spring 34 biasing the filler body 13 for the purpose of removing the fibers adhering to the pressure roll 12. In this manner the pressure roll 12 is continuously cleaned and the removed fibers either travel to the work zone 16 or are drawn out through the suction outlet 27.
  • the arcuate surface 35 of the filler body 13 disposed adjacent the periphery of the opening roll 10 forms a continuation of the cylindrical wall of the chamber 36 which accommodates the opening roll 10.
  • the arcuate surface 35 of the filler body 13 extends to the location 39 where the opening roll 10 may have its first contact with the sliver.
  • the filler body 13 constitutes a good seal for the space between the clamping zone 40 of the cylinder pair 11, 12 and the work zone 16 and it further serves for the cleaning of the pressure roll 12, for the lateral guidance of the sliver between the clamping zone and the work zone and for guiding the air stream to the work zone.
  • the filler body 13 thus ensures that the air jacket rotating with the opening roll 10 is admitted practically undisturbed to the work zone.
  • the filler body 13 also provides an effective seal for the space between the clamping zone 40 and the working zone 16 against the effects of exiting air. This feature improves the aerodynamic conditions at the work zone and eliminates, or at least substantially diminishes, the waste of fiber fly.
  • the directions of rotation of the opening roll 10 and the feed roll 11 are opposed to one another, so that the feed roll 11 continuously advances the sliver to the work location 16.
  • the sliver, during treatment by the opening roll 10 lies on the feed roll 11.
  • the latter thus furnishes a backup support for the sliver while it is worked on by the opening roll 10.
  • the smallest distance between the tip of the teeth 22 of the opening roll 10 and the highest points of the undulating crest line 26 of the lateral walls 25 is expediently held at a very small value and is preferably 0.1 0.5 mm.
  • the opening roll 10 may have a diameter of, for example, approximately 80 mm and the feed roll 11 a diameter of approximately mm.
  • the distance from the narrowest clearance between the opening roll 10 and the feed roll 11 at the clamping zone 40, between the feed roll 11 and the pressure roll 12 measured along the periphery of the feed roll 11 is the most favorable if it is somewhat greater than the expected length of the longest fibers in the sliver to be separated. It is noted, however, that the broadest scope of the invention is by no means limited to such an arrangement. Expediently, the aforenoted distance may be such that the fiber beard of the sliver reaches approximately to the narrowest gap between the opening roll 10 and the feed roll 11 at which point the fibers are pulled out of the sliver.
  • This arrangement does by no means preclude the possibility that the opening roll 10 may pull out fibers from the fiber beard already upstream of the aforenoted narrowest location. Also, the partial or full opening of the fiber beard may take place already upstream of the aforenoted narrowest location if such a solution is advantageous in certain cases.
  • the sliver to be opened is advanced with a constant feeding speed to the gripping zone 40 and is admitted at a distance downstream thereof into the range of the teeth 22 of the opening roll 10.
  • These teeth seek to place the sliver onto the periphery of the feed roll 11 and, on the other hand, seek to pull out single fibers from the sliver.
  • the single fibers are thereafter admitted into the channel 15 and are forwarded to the spinning rotor (not shown) where they are spun.
  • the work zone 16 where the fibers are continuously pulled from the fiber beard of the sliver by the opening roll is bounded, adjacent the opening roll 10, by the periphery of the feed roll 1 1 and thus affects the course of the sliver separating operation. It is further noted that the air stream flowing through the channels 14, 15, 17, 19 is generated by the rapid rotation of the toothed opening roll 10.
  • an apparatus for opening slivers of textile fibers into separate fibers said apparatus being associated with an open-end spinning device and being of the known type that has (a) a rapidly rotating opening roll having a plurality of teeth on its periphery, and (b) a rotating feed roll for advancing said slivers towards said opening roll, the improvement comprising a work zone bounded on one side by a peripheral portion of said opening roll and on the other side by a peripheral portion of said feed roll, and a pressure roll disposed upstream of said work zone and being pressed against said feed roll to provide a clamping zone for gripping each sliver, with said opening roll and said feed roll being driven in opposite directions, with the periphery of said feed roll being provided with peripherally extending groove means in a spaced, side-by-side relationship, with the outermost point on said teeth and on said groove means being located at a radial distance from one another of not more than 0.5 mm, with said feed roll being adapted to advance said slivers to said work
  • groove means are formed as a single, helically extending groove having a plurality of turns.
  • an apparatus for opening slivers of textile fibers into separate fibers said apparatus being of the known type that has (a) a rapidly rotating opening roll, (b) a rotating feed roll for advancing said slivers towards said opening roll, the improvement comprising A. a pressure roll urged into contact with said feed roll for establishing a clamping zone in cooperation therewith to grip and advance said slivers towards said opening roll,
  • an apparatus for opening slivers of textile fibers into separate fibers said apparatus being associated with an open-end spinning device and being of the known type that has (a) a rapidly rotating opening roll having a plurality of teeth on its periphery, and (b) a rotating feed roll for advancing said slivers towards said opening roll, the improvement comprising work zone bounded on one side by a peripheral portion of said opening roll and on the other side by a peripheral portion of said feed roll, said opening roll and said feed roll being driven in opposite directions, a pressure roll disposed upstream of said work zone and being pressed against said feed roll to provide a clamping zone for gripping each sliver, and means defining at least one outlet opening connected to a vacuum source, said outlet opening being disposed laterally of and adjacent to said clamping zone, said peripheral portions being located at a small radial distance from one another, said feed roll beingadapted to advance said slivers to said work zone, said opening roll separating said slivers into separate fibers in said work zone.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00264953A 1971-06-21 1972-06-21 Apparatus for opening slivers of textile fibers Expired - Lifetime US3826071A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712130658 DE2130658A1 (de) 1971-06-21 1971-06-21 Vorrichtung zum aufloesen textiler faserbaender

Publications (1)

Publication Number Publication Date
US3826071A true US3826071A (en) 1974-07-30

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Family Applications (1)

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US00264953A Expired - Lifetime US3826071A (en) 1971-06-21 1972-06-21 Apparatus for opening slivers of textile fibers

Country Status (5)

Country Link
US (1) US3826071A (enrdf_load_stackoverflow)
CH (1) CH544163A (enrdf_load_stackoverflow)
DE (1) DE2130658A1 (enrdf_load_stackoverflow)
FR (1) FR2143217B1 (enrdf_load_stackoverflow)
GB (1) GB1387294A (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894386A (en) * 1974-06-06 1975-07-15 Alexandr Alexeevi Sharychenkov Arrangement for feeding fibres into the twister of an open-end spinning frame
US3922839A (en) * 1973-05-25 1975-12-02 Daiwa Spinning Co Ltd Device for preventing accumulation of fibers in a spinning machine
US3938310A (en) * 1973-03-08 1976-02-17 Vyzkumny Ustav Bavlnarsky Apparatus for separating fibers in open-end spinning machines
US3950929A (en) * 1973-10-17 1976-04-20 Daiwa Boseki Kabushiki Kaisha Method of feeding a sliver into a combing section of an open end spinning machine and a presser therefor
US3968636A (en) * 1973-10-24 1976-07-13 Vyzkumny Ustav Bavlnarsky Open-end fiber spinning machine
US3974635A (en) * 1973-09-03 1976-08-17 Daiwa Boseki Kabushiki Kaisha Feed roller for feeding fibers to a combing roller in an open end spinning machine
US3986328A (en) * 1975-09-30 1976-10-19 Parks-Cramer (Great Britain), Ltd. Method and apparatus for pneumatically removing fiber and trash waste on open-end spinning machines
US4008562A (en) * 1974-06-18 1977-02-22 Vyzkumny Ustav Bavlnarsky Apparatus for supplying a staple fiber formation to a fiber separating device of an open-end spinning unit
US4070811A (en) * 1974-09-24 1978-01-31 Ernst Fehrer Machine for spinning textile fibers
US4109453A (en) * 1976-04-26 1978-08-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber separating device of an open-end spinning apparatus
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
US4926627A (en) * 1988-05-20 1990-05-22 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Device to feed and open a fiber sliver on an open-end spinning device
US5185994A (en) * 1991-01-18 1993-02-16 Hans Stahlecker Feeding and opening device for an open-end spinning arrangement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2448584C3 (de) * 1974-10-11 1984-10-25 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Auflöseeinrichtung für eine Offen-End-Spinnvorrichtung
CS203501B1 (en) * 1978-07-14 1981-03-31 Milos Vecera Method of and apparatus for separating impurities from staple fibres under simultaneous straightening of cleaned fibres in open-end spinning process
DE3565560D1 (en) * 1984-02-17 1988-11-17 Allied Signal Inc Method and apparatus for opening a sliver
DE19850518A1 (de) * 1998-11-03 2000-05-04 Schlafhorst & Co W Vorrichtung zum Auflösen von Faserbändern

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US657580A (en) * 1900-01-27 1900-09-11 John T Woolery Cotton picking and cleaning machine.
US866918A (en) * 1907-01-16 1907-09-24 Michael Collins Machine for preparing fibers for spinning.
US896437A (en) * 1907-10-09 1908-08-18 Michael Collins Machine for preparing fibers for spinning.
US2853847A (en) * 1957-05-08 1958-09-30 Keeler Method of and apparatus for intertwining fibers to form roving or yarn
US3210923A (en) * 1960-07-28 1965-10-12 Spinnbau Ges G M B H Device for spinning staple fibers
US3324642A (en) * 1964-01-08 1967-06-13 Meimberg Julius Process and apparatus for spinning staple fibers
US3439488A (en) * 1966-03-19 1969-04-22 Vyzk Ustav Bavlnarsky Apparatus for supplying separated fibers to a spinning apparatus
US3672144A (en) * 1970-05-06 1972-06-27 Vyzk Ustav Bavlnarsky Break-spinning machine
US3685272A (en) * 1969-07-08 1972-08-22 Tmm Research Ltd Textile spinning machines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US657580A (en) * 1900-01-27 1900-09-11 John T Woolery Cotton picking and cleaning machine.
US866918A (en) * 1907-01-16 1907-09-24 Michael Collins Machine for preparing fibers for spinning.
US896437A (en) * 1907-10-09 1908-08-18 Michael Collins Machine for preparing fibers for spinning.
US2853847A (en) * 1957-05-08 1958-09-30 Keeler Method of and apparatus for intertwining fibers to form roving or yarn
US3210923A (en) * 1960-07-28 1965-10-12 Spinnbau Ges G M B H Device for spinning staple fibers
US3324642A (en) * 1964-01-08 1967-06-13 Meimberg Julius Process and apparatus for spinning staple fibers
US3439488A (en) * 1966-03-19 1969-04-22 Vyzk Ustav Bavlnarsky Apparatus for supplying separated fibers to a spinning apparatus
US3685272A (en) * 1969-07-08 1972-08-22 Tmm Research Ltd Textile spinning machines
US3672144A (en) * 1970-05-06 1972-06-27 Vyzk Ustav Bavlnarsky Break-spinning machine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938310A (en) * 1973-03-08 1976-02-17 Vyzkumny Ustav Bavlnarsky Apparatus for separating fibers in open-end spinning machines
US3922839A (en) * 1973-05-25 1975-12-02 Daiwa Spinning Co Ltd Device for preventing accumulation of fibers in a spinning machine
US3974635A (en) * 1973-09-03 1976-08-17 Daiwa Boseki Kabushiki Kaisha Feed roller for feeding fibers to a combing roller in an open end spinning machine
US3950929A (en) * 1973-10-17 1976-04-20 Daiwa Boseki Kabushiki Kaisha Method of feeding a sliver into a combing section of an open end spinning machine and a presser therefor
US3968636A (en) * 1973-10-24 1976-07-13 Vyzkumny Ustav Bavlnarsky Open-end fiber spinning machine
US3894386A (en) * 1974-06-06 1975-07-15 Alexandr Alexeevi Sharychenkov Arrangement for feeding fibres into the twister of an open-end spinning frame
US4008562A (en) * 1974-06-18 1977-02-22 Vyzkumny Ustav Bavlnarsky Apparatus for supplying a staple fiber formation to a fiber separating device of an open-end spinning unit
US4070811A (en) * 1974-09-24 1978-01-31 Ernst Fehrer Machine for spinning textile fibers
US3986328A (en) * 1975-09-30 1976-10-19 Parks-Cramer (Great Britain), Ltd. Method and apparatus for pneumatically removing fiber and trash waste on open-end spinning machines
US4109453A (en) * 1976-04-26 1978-08-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber separating device of an open-end spinning apparatus
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
US4926627A (en) * 1988-05-20 1990-05-22 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Device to feed and open a fiber sliver on an open-end spinning device
US5185994A (en) * 1991-01-18 1993-02-16 Hans Stahlecker Feeding and opening device for an open-end spinning arrangement

Also Published As

Publication number Publication date
GB1387294A (en) 1975-03-12
DE2130658A1 (de) 1973-01-11
FR2143217B1 (enrdf_load_stackoverflow) 1977-12-23
FR2143217A1 (enrdf_load_stackoverflow) 1973-02-02
CH544163A (de) 1973-11-15

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