US3916485A - Strand separating and stripping apparatus - Google Patents

Strand separating and stripping apparatus Download PDF

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Publication number
US3916485A
US3916485A US402202A US40220273A US3916485A US 3916485 A US3916485 A US 3916485A US 402202 A US402202 A US 402202A US 40220273 A US40220273 A US 40220273A US 3916485 A US3916485 A US 3916485A
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US
United States
Prior art keywords
housing
passage
strands
strand
cylinder
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
US402202A
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English (en)
Inventor
Ctibor Doudlebsky
Frantisek Jaros
Antonin Cap
Frantisek Ferka
Josef Ripka
Jan Junek
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.)
Filing date
Publication date
Application filed by Vyzkumny Ustav Bavlnarsky AS filed Critical Vyzkumny Ustav Bavlnarsky AS
Application granted granted Critical
Publication of US3916485A publication Critical patent/US3916485A/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 wall section of 57/5891, 58,95 the passage terminating at the first boundary edge is made removable from the housing to permit inter- [56] References Cited change of differently shaped first edges, and such wall UNITED STATES PATENTS section may be made axially movable in the housing to 3,439,488 4/1969 Bucil et al 19/105 x perm adjustment of the with of the Zone 3,696,605 10/ 1972 Morikawa et a1 57/5895 5 Claims, 4 Drawing Figures a ramp/9:350
  • fibrous strand slivers to be spun into yarn are conventionally separated by a rotating, externally toothed cylinder and are thereafter discharged into an adjacent air duct viaa fiber separating blade.
  • the air duct is subjected to a downstream jet of air to accelerate the strands into a rotary spinning chamber where the strands are collected at high velocity and spun into yarn.
  • a housing containing an internal bore, in which the toothed separating cylinder may be rotatably mounted is provided integrally with a second elongated internal passage extending through the housing.
  • the passage serves as an air duct through which an air flow of selectable velocity may be directed.
  • the passage intersects the bore in an arcuate region that serves as a fiber stripping zone.
  • a first one of the resulting boundary edges of the stripping zone forms the discharge end of an annular work space between the cylinder and the bore.
  • Such first boundary edge is suitably shaped to effect a smooth and streamlined discharge of the separated strands into the integrally formed air duct.
  • Such streamlined discharge together with the selected air flow velocity, prevents contact of the strands with the duct walls.
  • a portion of the duct wall terminating in the first boundary edge is made removable with respect to the housing so that various shapes of the first edge may be readily interchanged.
  • Such wall portion may also be made movable in the housing to effectively position the first edge relative to the opposite boundary edge, thereby permitting adjustment of the zone width.
  • FIG. 1 is a sectional view of an open-ended strand spinning system having strand separation and stripping facilites that include an integrally formed strand stripping zone in accordance with the invention
  • FIGS. 2, 3 and 4 are fragmented sectional views respectively illustrating different shapes for the strand discharge boundary edge of the stripping zone of FIG. 1.
  • FIG. 1 illustrates an arrangement 101 for separating and stripping a plurality of fibrous strand slivers 88 and for thereafter accelerating such strands at high velocity into a spinning chamber 5 or other twist forming device.
  • the chamber 5 is externally rotatable via a shaft 53 to spin strands introduced therein into yarn into a conventional manner.
  • the chamber 5 includes a sloping side wall 51 for efficiently receiving the accelerated strands and for positioning such strands on a collecting surface 52.
  • the separating and stripping arrangement 101 includes a main housing 1 having an internal cylindrical bore or cavity 11.
  • the bore 11 communicates with an outer surface 102 of the housing 1 via an opening 103.
  • a strand advancing section 104 including a separately rotatable roller 3.
  • a shoe 31 is urged against the periphery of the roller 3 by a spring 33 for advancing the strands 8 which are introduced therebetween via a funnel 32.
  • the strands advanced by the section 104 are introduced into an inlet region 106 of an annular work space 12.
  • the work space 12 is defined between the periphery of the bore 11 and the periphery of'a strand separating cylinder 2 rotatably mounted within the bore 11.
  • the cylinder periphery includes a toothed region 21 which, when rotating past the inlet area 106 of the work space 12, engages the incoming strands 8 and conveys them around the work space 12 to be discharged into an air duct 41.
  • the strands are subjected to an air flow directed circumferentially around the cylinder 2 in the direction of an arrow 107 by suitable means (not shown) to aid in the separation of the strands.
  • the duct 41 is defined by an elongated internal passage extending through the housing in a downstream direction (defined by an arrow R) between a first end 108 and a second end 109.
  • the duct 41 intersects the bore 11 in an arcuate strand stripping zone 42.
  • the zone 42 has a first boundary edge 111 forming a discharge end of the work space 12, and a second boundary edge 43 downstream of the first edge 111.
  • the edge 111 is suitably shaped to permit an unimpeded streamlined discharge of the separated strands via the zone 42 into the duct 41 in the direction of an arrow S.
  • the strand discharge is effected by inertial forces caused by the rotation of the cylinder 2 past the edge 111.
  • Air or other suitable carrier gas from a source is propelled downstream by suitable means through the duct 41 to accelerate the strands entering the duct through the stripping zone 42.
  • Such acceleration may be aided, and a degree of straightening of the strands accomplished, by suitably shaping and positioning the downstream edge 43 of the zone 42 in the air flow path to cause a localized increase in the air flow velocity.
  • air flow velocity (controllable, e.g., via a vane 411) together with the streamlined discharge path of the strands through the zone 42, prevents any collision of the strands with the walls of the duct 41.
  • edge 111 may be formed integrally with the main housing, it is advantageous to form a portion of the duct wall extending from the end 108 to the edge 111 as a removable section 6.
  • the section 6 may be affixed to the housing 1 via a screw 121. In this way, various different shapes of the edge 111 may be selectively employed to optimize conditions for the particular characteristics of the depicted apparatus or of the strands being spun into yarn.
  • the edge 111 may alternatively-exhibit a planar shape, a concavely curved shape and a convexly curved shape, respectively.
  • the wall section 6 may be made movable axially (i.e., in an upstream-downstream path) with respect to the housing 1 to provide limited movement of the edge 1 1 1 relative to the edge 43, thereby permitting adjustment of the width of the zone 42.
  • Such axial adjustment may be made, e.g., by suitable retraction or advancing of the screw 121.
  • a retraction of the screw will permit a corresponding retraction of the wall section 6 to the position shown in dotted lines in FIG. 1, thereby increasing the effective width of the zone 42.
  • a housing having an internal bore and an elongated internal passage extending through the housing, the passage intersecting the bore to define an adjustable width strand stripping zone having first upstream and second downstream boundary edges,
  • the passage including a wall section whose downstream end defines the first boundary edge and which is adjustably receivable by the housing to correspondingly adjust the stripping zone; means for adjustably supporting said wall section for axial movement in said housing to correspondingly vary the width of the stripping zone; cylinder rotatably mounted within the bore and having a plurality of external comb elements disposed on the periphery thereof, said periphery being spaced from the periphery of the bore by an arcuate work space into which strands may be introduced, such strands being discharged from the work space through the stripping zone and into the passage when the cylinder is rotated; and

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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)
US402202A 1972-10-02 1973-10-01 Strand separating and stripping apparatus Expired - Lifetime US3916485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS6649A CS167567B1 (fr) 1972-10-02 1972-10-02

Publications (1)

Publication Number Publication Date
US3916485A true US3916485A (en) 1975-11-04

Family

ID=5414047

Family Applications (1)

Application Number Title Priority Date Filing Date
US402202A Expired - Lifetime US3916485A (en) 1972-10-02 1973-10-01 Strand separating and stripping apparatus

Country Status (5)

Country Link
US (1) US3916485A (fr)
JP (1) JPS5742734B2 (fr)
CH (1) CH564105A5 (fr)
CS (1) CS167567B1 (fr)
DE (1) DE2347327A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727395A1 (de) * 1976-07-08 1978-01-12 Vyzk Ustav Bavlnarsky Verfahren und vorrichtung zum foerdern von fasermaterial in einer offen- end-spinnrotoreinheit
US4458506A (en) * 1980-10-11 1984-07-10 Sulzer Morat Gmbh Circular knitting or circular hosiery knitting machine for manufacture of knit wares of hosiery with combed-in fibers
US4507827A (en) * 1982-11-05 1985-04-02 Rieter Machine Works Ltd. Cleaning machine for fiber material
US4546622A (en) * 1982-04-03 1985-10-15 Sulzer Morat Gmbh Circular knitting machine for producing knit goods having enmeshed fibers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2811881A1 (de) * 1978-03-18 1979-09-27 Barmag Barmer Maschf Offenend-spinneinrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439488A (en) * 1966-03-19 1969-04-22 Vyzk Ustav Bavlnarsky Apparatus for supplying separated fibers to a spinning apparatus
US3696605A (en) * 1968-11-27 1972-10-10 Daiwa Spinning Co Ltd Ringless spinning machine
US3712042A (en) * 1969-09-16 1973-01-23 Vyzk Ustav Bavlnarsky Method of withdrawing fibers from a combing roller of a fiber separating device and device for performing said method
US3728853A (en) * 1970-07-23 1973-04-24 Rieter Ag Maschf Method and apparatus for interrupting the supply of fiber material to a spinning machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4914973U (fr) * 1972-05-12 1974-02-07

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439488A (en) * 1966-03-19 1969-04-22 Vyzk Ustav Bavlnarsky Apparatus for supplying separated fibers to a spinning apparatus
US3696605A (en) * 1968-11-27 1972-10-10 Daiwa Spinning Co Ltd Ringless spinning machine
US3712042A (en) * 1969-09-16 1973-01-23 Vyzk Ustav Bavlnarsky Method of withdrawing fibers from a combing roller of a fiber separating device and device for performing said method
US3728853A (en) * 1970-07-23 1973-04-24 Rieter Ag Maschf Method and apparatus for interrupting the supply of fiber material to a spinning machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727395A1 (de) * 1976-07-08 1978-01-12 Vyzk Ustav Bavlnarsky Verfahren und vorrichtung zum foerdern von fasermaterial in einer offen- end-spinnrotoreinheit
DE2727395C2 (de) * 1976-07-08 1986-08-28 Výzkumný ústav bavlnářský, Ustí nad Orlicí OE-Rotorspinneinheit
US4458506A (en) * 1980-10-11 1984-07-10 Sulzer Morat Gmbh Circular knitting or circular hosiery knitting machine for manufacture of knit wares of hosiery with combed-in fibers
US4546622A (en) * 1982-04-03 1985-10-15 Sulzer Morat Gmbh Circular knitting machine for producing knit goods having enmeshed fibers
US4507827A (en) * 1982-11-05 1985-04-02 Rieter Machine Works Ltd. Cleaning machine for fiber material

Also Published As

Publication number Publication date
DE2347327A1 (de) 1974-04-11
CS167567B1 (fr) 1976-04-29
JPS4993627A (fr) 1974-09-05
JPS5742734B2 (fr) 1982-09-10
CH564105A5 (fr) 1975-07-15

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