US3434184A - Apparatus for separating fibers - Google Patents

Apparatus for separating fibers Download PDF

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Publication number
US3434184A
US3434184A US619862A US3434184DA US3434184A US 3434184 A US3434184 A US 3434184A US 619862 A US619862 A US 619862A US 3434184D A US3434184D A US 3434184DA US 3434184 A US3434184 A US 3434184A
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US
United States
Prior art keywords
fibers
separating
rotor
outlet
projections
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
US619862A
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English (en)
Inventor
Ctibor Doudlebsky
Ludvik Fajt
Frantisek Bucil
Stanislav Kabele
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.)
Vyzkumny Ustav Bavlnarsky AS
Original Assignee
Vyzkumny Ustav Bavlnarsky AS
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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Application filed by Vyzkumny Ustav Bavlnarsky AS filed Critical Vyzkumny Ustav Bavlnarsky AS
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Publication of US3434184A publication Critical patent/US3434184A/en
Anticipated expiration legal-status Critical
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 present invention relates to textile apparatus in general, and more particularly to improvements in apparatus for separating fibers or similar staple materials which are supplied thereto in the form of a sliver or the like so that the separated fibers can be fed directly into a yarn forming device, for example, into the suction chamber of a continuous ringless spinning machine.
  • the fibers In a ringless spinning machine wherein the yarn is formed of fibers fed into a spinning chamber which is maintained at subatmospheric pressure and which actually draws fibers into its interior, the fibers must be supplied in separated condition, i.e., the spinning chamber must be preceded by an apparatus which can separate fibers supplied thereto in the form of a sliver so that the suction chamber will receive a continuous supply of separated fibers.
  • Conventional separating apparatus normally comprise a rapidly revolving combing roller and a slowly rotating feed roller. The latter serves to supply the sliver or another fibrous formation into the range of teeth on the active surface of the combing roller.
  • the separating apparatus requires two drives, one for the combing roller and the other for the feed roller.
  • the drive for the feed roller will be arrested in automatic response to yarn breakage or whenever the spinning chamber fails to discharge a continuous yarn to the take-up bobbin in the spinning machine.
  • a textile plant usually comprises a very large number of closely adjacent spinning machines which are mounted on a common frame, space in such plants is at a premium and it is desirable to construct each individual machine, its fiber separating apparatus, and the feed for such apparatus in a way to insure that each assembly occupies little room.
  • the drives for the combing and feed rollers must be readily accessible for the purposes of lubrication, inspection and/or replacement. Inaccessibility of drives excepting in response to dismantling will contribute to higher cost for labor and considerable losses in output.
  • Another object of the invention is to provide a fiber separating apparatus Whose combing or fiber separating component can be driven independently of similar components in other fiber separating apparatus, wherein the drive for such separating component occupies little room, and wherein certain parts of the feed and the parts of the actual fiber separating device can be combined into a rigid unit.
  • a further object of the invention is to provide a novel prime mover for the fiber separating elements in an apparatus of the above outlined character.
  • An additional object of the instant invention is to provide a fiber separating apparatus which can be readily combined with presently known yarn forming devices and which occupies less room than all such conventional apparatus which are known to us at this time.
  • a concomitant object of the invention is to provide a fiber separating apparatus which requires little mainte nance, wherein the fiber separating and sliver feeding devices are readily accessible, and which can separate fibers in a continuous operation and at a rate required to supply separated fibers to the spinning chamber of a continuous ringless spinning machine.
  • the apparatus comprises a motor having a cylindrical rotor provided with outwardly extending fiber-separating projections, a casing or housing accommodating the motor and including a sleeve-like jacket extending around the projections and defining with the rotor an arcuate separating channel, an inlet provided on the housing for admission of unseparated fibers into the channel and an outlet provided on the housing for evacuation of separated fibers from the channel including a roller or an analogous rotary mem ber driven by a separate prime mover and installed in the inlet.
  • the jacket is preferably integral with the inlet and outlet and the latter is preferably provided with a rloffing edge which promotes the evacuation of separated fibers from the channel. Such evacuation is further promo-ted by suction created in the spinning chamber of a ringless spinning machine wherein the fibers are converted into yarn and which receives separated fibers directly from the outlet.
  • the single figure shows an apparatus for separating textile fibers.
  • This apparatus comprises an electric motor having a stator surrounded by a hollow cylindrical rotor 1.
  • the rotor 1 is connected with two mirror symmetrical cages 2 (only one shown) rotatable on antifriction bearings 3 surrounding an axle 4 which is rigid with the stator 5.
  • the axle 4 is fixedly secured to the bushes 6 of an outer housing or casing 7.
  • the rotor 41 is surrounded by a combing or separating ring or carrier 8 provided with outwardly extending projections 9 which come into actual engagement with and separate the fibers from each other.
  • the carrier 8 may form an integral part of the rotor 1 or that it may be assembled of several concentric annular sections.
  • the projections 9 may resemble the teeth of a saw and may form part of a band or tape which is convoluted around the carrier 8. Alternatively, the projections 9 may form integral parts of the aforementioned annular sections.
  • the central portion of the housing 7 is constituted by a sleeve-like hollow cylindrical jacket 71 which surrounds the projections 9 and defines with the carrier 8 an annular channel 20 wherein the fibers are separated from each other by the action of projections 9.
  • the lower portion of the jacket 71 is formed with a funnel-shaped inlet 72 which accommodates certain components of a feed including a relatively small rotary member or roller 11 serving to advance a continuous sliver 13 of interlaced unseparated fibers into the aforementioned channel 20, i.e., into the range of projections 9 which orbit about the axle 4.
  • the roller 11 is mounted on a drive shaft 10 which receives motion from a separate prime mover, not shown.
  • the top portion of the roller 11 is closely adjacent to the path of projections 9.
  • the inlet 72 further accommodates a swingably mounted pressing member 12 which is rockable on a horizontal pivot 12a and serves to yieldably bias the sliver 13 against the periphery of the roller 11.
  • the direction of rotation of the roller 11 is identical with that of the rotor 1.
  • the rotor 1 is driven to rotate in a clockwise direction.
  • the upper portion of the jacket 71 is formed with a substantially tangential outlet 73 which defines a relatively wide passage of smail height for evacuation of separated fibers 14.
  • the outlet 73 has a dofiing or stripping edge 74 which is preferably parallel to the axis of the rotor 1 and serves to direct separated fibers 14 into the passage defined by the outlet 73.
  • the latter discharges into a yarn forming device 21, preferably a spinning chamber whose interior is maintained at subatmospheric pressure.
  • yarn forming devices 21 are used in ringless spinning machines.
  • the inlet 72 is located substantially diametrically opposite the outlet 73 with reference to the axis of the rotor 1.
  • the drawing further shows a cable 15 whose conductors connect the stator winding :16 with a suitable source of electrical energy, not shown.
  • the cable 15 extends through one end of the axle 4.
  • the prime mover rotates the shaft 10 of the feed roller 11 at a speed which is less than the operating speed of the rotor 1.
  • the circuit of the winding 116 is completed so that the rotor 1 rotates and the projections 9 of the carrier 8 comb the sliver 13 which is fed by the roller 11 through the inlet 72 and into the channel 20 between the carrier 8 and jacket 71.
  • Separated fibers 14 are dotfed by the edge 74 and enter the passage of the outlet 73. Suction prevailing in the spinning chamber 21 is felt in the outlet 73 so that the fibers 14 are actually drawn into the spinning chamber. Such fibers are sucked onto a collecting surface of the spinning chamber 21 and are converted into a yarn in a manner not forming part of the present invention.
  • Apparatus for separating fibers particularly for combing slivers of coherent textile fibers, comprising a motor having a stator and a hollow cylindrical rotor encircling said stator, said rotor being provided with outwardly extending fiber separating projections; a casing accommodating said motor and including a jacket extending around said projections and defining with said rotor an arcuate separating channel, said casing further having an inlet for admission of unseparated fibers into said channel and an outlet for evacuation of separated fibers from said channel; and a feed for supplying unseparated fibers to said channel, including a rotary member installed in said inlet.
  • said feed further comprises pressing means provided in said inlet for yieldably urging unseparated fibers against the periphery of said rotary member.
  • Apparatus as defined in claim 1 further comprising means for creating suction in said outlet to thereby promote evacuation of separated fibers from said channel.

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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)
US619862A 1966-03-04 1967-03-01 Apparatus for separating fibers Expired - Lifetime US3434184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS146566 1966-03-04

Publications (1)

Publication Number Publication Date
US3434184A true US3434184A (en) 1969-03-25

Family

ID=5349100

Family Applications (1)

Application Number Title Priority Date Filing Date
US619862A Expired - Lifetime US3434184A (en) 1966-03-04 1967-03-01 Apparatus for separating fibers

Country Status (5)

Country Link
US (1) US3434184A (de)
BE (1) BE694227A (de)
CH (1) CH454690A (de)
ES (1) ES336429A1 (de)
FR (1) FR1517137A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800520A (en) * 1973-06-04 1974-04-02 Rieter Ag Maschf Fiber opening roll of an open end spinning device
US3834148A (en) * 1972-03-27 1974-09-10 Toyoda Automatic Loom Works Ringless spinning apparatus
US3894386A (en) * 1974-06-06 1975-07-15 Alexandr Alexeevi Sharychenkov Arrangement for feeding fibres into the twister of an open-end spinning frame
US4030280A (en) * 1976-01-07 1977-06-21 The United States Of America As Represented By The Secretary Of Agriculture Fiber blending, subdividing, and distributing system
WO1995023248A1 (fr) * 1994-02-28 1995-08-31 Aktsionernoe Obshestvo Otkrytogo Tipa Legmashdetal Procede de preparation de fibre de lin destinee au filage et chaine de production de mise en ×uvre du procede

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474210A (en) * 1947-12-10 1949-06-28 Abbott Machine Co Bobbin holder for spinning and twisting frames
US3095687A (en) * 1961-02-17 1963-07-02 Uster Spindel Motoren Maschf Electromotor-driven textile mill spindles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474210A (en) * 1947-12-10 1949-06-28 Abbott Machine Co Bobbin holder for spinning and twisting frames
US3095687A (en) * 1961-02-17 1963-07-02 Uster Spindel Motoren Maschf Electromotor-driven textile mill spindles

Cited By (5)

* 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
US3800520A (en) * 1973-06-04 1974-04-02 Rieter Ag Maschf Fiber opening roll of an open end spinning device
US3894386A (en) * 1974-06-06 1975-07-15 Alexandr Alexeevi Sharychenkov Arrangement for feeding fibres into the twister of an open-end spinning frame
US4030280A (en) * 1976-01-07 1977-06-21 The United States Of America As Represented By The Secretary Of Agriculture Fiber blending, subdividing, and distributing system
WO1995023248A1 (fr) * 1994-02-28 1995-08-31 Aktsionernoe Obshestvo Otkrytogo Tipa Legmashdetal Procede de preparation de fibre de lin destinee au filage et chaine de production de mise en ×uvre du procede

Also Published As

Publication number Publication date
CH454690A (de) 1968-04-15
ES336429A1 (es) 1968-01-01
BE694227A (de) 1967-07-31
FR1517137A (fr) 1968-03-15

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