US3861131A - Apparatus for spinning loose fibres - Google Patents

Apparatus for spinning loose fibres Download PDF

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Publication number
US3861131A
US3861131A US419546A US41954673A US3861131A US 3861131 A US3861131 A US 3861131A US 419546 A US419546 A US 419546A US 41954673 A US41954673 A US 41954673A US 3861131 A US3861131 A US 3861131A
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US
United States
Prior art keywords
thread
rotating body
fibres
chamber
angular projection
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
US419546A
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English (en)
Inventor
Chatelier Jacques Le
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.)
Maschinenfabrik Rieter AG
Original Assignee
Alsacienne de Constructions Mecaniques SA
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Filing date
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Publication of US3861131A publication Critical patent/US3861131A/en
Assigned to MASCHINENFABRIK RIETER AG, A CORP OF SWITZERLAND reassignment MASCHINENFABRIK RIETER AG, A CORP OF SWITZERLAND ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SOCIETE ALSACIENNE DE CONSTRUCTION DE MATERIEL TEXTILE
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Expired - Lifetime legal-status Critical Current

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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
    • D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes
    • 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
    • D01H4/04—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 imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/90—Arrangements with two or more spinning or twisting devices of different types in combination
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist

Definitions

  • SHEET 1 [IF 2 APPARATUS FOR SPINNING LOOSE FIBRES BACKGROUND OF THE INVENTION
  • the present invention relates to improvements in apparatus for spinning loose fibres to form continuous thread, with the thread having a degree of twist that is not obtainable from known continuous spinning apparatus.
  • the present invention is directed to apparatus for spinning loose fibres to form continuous thread and the treatment of the thread to cause modification to the twist of the thread by compacting, straightening or further twisting of the fibres.
  • the invention lacks the cost and complexity of further apparatus and re-reeling of stowed thread to modify thread formed from spun loose fibres.
  • FIG. 1 is a diagrammatic perspective of a flexible thread being drawn over and in contact with an angular projection.
  • FIG. 2 is a front elevation of the device shown in FIG. 1.
  • FIG. 3 is a diagrammatic vertical part section of a plant for gaseous treatment of thread and incorporating an angular projection after treatment.
  • FIG. 4 is a diagrammatic vertical part section of a plant for liquid treatment of thread and incorporating an angular projection within the liquid reservoir.
  • FIG. 5 is a vertical cross-section of a spinning device showing inlet and outlet ducts and an angular projection.
  • FIG. 6 is a vertical cross-section of an alternative spinning device.
  • FIG. 7 is a vertical cross-section of an alternative spinning device with adjustable angular projection.
  • FIG. 1 shows strands 1 of a spun or twisted flexible thread 2 passed under applied tension T over and in contact with edge 3 of angular projection 4 formed by a transversly arranged prism.
  • the thread 2 is passed over the prism 4 at an oblique angle as shown more clearly in FIG. 2 in such a manner that the direction of movement of thread 2 is changed as indicated by angle D.
  • Variation of tension T in the thread 2 causes variation of pressure R over edge 3 of the angular projection 4 and deformation of the thread can be controlled as desired.
  • the edge 3 presents a substantially abrupt edge but a small radius is preferrably incorporated.
  • high pressure R results in an elliptical cross-section of thread.
  • Preferred results are obtained by providing the edge 3 with as small a radius as possible and applicant has discovered that a radius within the range of 0.5 to 20 times the apparent diameter of the thread is most satisfactory. At all times the radius should be sufficiently large to prevent damage to the product.
  • Decrease in angle D results in a smaller deformation ofthe thread but increases twist in the thread producing a more compact product.
  • Thread pulled over the edge 3 of angular projection 4 results in the fibres in the upper part of the thread being stretched, deformed or pulled out to a greater extent than the fibres on the inner ra dius, with the inner fibres being contracted rather than pulled out results in increased compacting and additional twist of the fibres.
  • the thread is moving away from the edge 3 in a perpendicular direction but if the direction of motion is oblique as shown in FIG. 2 the flattening of the thread is accentuated and improved twist compacting is attained.
  • FIG. 3 illustrates the device shown in FIGS. 1 and 2 incorporated in a plant for treatment oftextile thread.
  • the edge 3 of the angular projection 4 is located at an exit 25 of a gaseous reservoir 21, with the gas entering through opening 22 and exhausting or being recircu lated via an outlet 23.
  • the thread 2 from a feed spool 19 passes through guide 18, roller 17 and feed cylinders 16, through a reservoir inlet 24, over and in contact with edge 3 of the prism 4, through rollers 14 to a thread receiving spool 13.
  • Tension is applied to the thread by apparatus 11 comprising items 3, 4, 14 and 13 and a check or brake apparatus is generally indicated at 12 comprising items 19, 17 and 16.
  • a thread brake device may be incorporated.
  • FIG. 4 shows a variant of the plant described with reference to FIG. 3. Fibre is treated by being passed through liquid 31 in a reservoir 32, with the edge 3 of the angular projection 4 being substantially immersed in the liquid 31.
  • a spinning device which comprises a hollow truncated rotating body 35 fed with loose fibres by a duct 36 tangentially arranged to project within the body 35 which rotates at high speed.
  • the fibres are compounded during spinning to form thread 2A, with the thread 2A passing over an end 39 of an outlet duct 37 and over and in contact with the edge 3 of an angular projection 41 housed in a chamber 43, with the chamber being closed by cap 42.
  • Thread 2 and 2A is subjected to tension devices (not shown) and passes through outlet duct 37 located on the axial center-line, coincident with the center-line of the rotating body 35.
  • the treated thread 2 After passing over and in contact with the edge 3 of the projection 41, the treated thread 2 is drawn out through an oblique pipe 38 provided in the wall of the cap 42 and is wound on a storage spool (not shown). As the thread is being formed in part by centrifugal force within high speed rotating body 35 and is also subjected to friction against the end 39 of the out let duct 37, sufficient tension is created over the edge 3. Spinning is set in motion by introducing a piece of thread in the pipe 38 with the thread being sucked into the chamber 43 and outlet duct 37 to rest against the inner wall of the body 35.
  • FIG. 6 shows a variant of the above spinning device which differs in functioning in that the thread 2A passes downwardly through outlet duct 37 over and in contact with the edge 3 of angular projection 41 and is drawn through oblique pipe 38 located below inlet duct 36.
  • FIG. 7 shows a further variant of the device shown in FIGS. and 6.
  • the edge 3A is formed as an integral part of the oblique pipe 38A projecting in the chamber 43.
  • the position of the annular projection which forms part of pipe 38A is manually adjustable to suit varying forms and types of thread.
  • the thread being formed has a twist coefficient higher than that normally obtained on traditional continuous spinning machines. This is, in part, attained by the degree of centrifugal force applied to the fibres in the rotating body, with the fibres being tightly urged against the inner truncated wall of the rotating body enabling simple and efficient compounding of the fibres to form a length of thread sufficient to enable it to detach itself from the rotating body wall by twisting the thread on itself.
  • fibre By the use of the word fibre is meant a thread like filament of animal, vegetable, textile or synthetic form or any combination of such filaments.
  • Metal fibres or fibres of glass may be used as additives to natural and- /or synthetic fibres.
  • thread any spun filaments forming thread, cord, string, twine, ribbon, webbing, lacing or long slender flexible body.
  • An open-end spinning device for spinning a thread comprising a hollow rotating body having an axis, a fibre inlet duct opening into said hollow rotating body, a thread-guiding duct coaxial with said hollow rotating body, said thread-guiding duct having an inlet end located in said hollow rotating body and an outlet end. a chamber sealed about said outlet end of said threadguiding duct, said chamber having a thread exit opening offset with respect to said axis of said hollow rotat ing body, said thread exit opening and said outlet end of said thread-guiding duct defining therebetween a portion of the path of travel of the thread, and an angular projection arranged slanting cross-wise in said portion of the path of travel of the thread.
  • the open-end spinning device as claimed in claim 1 further including means for adjustably positioning said angular projection in said chamber.
  • 7 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US419546A 1972-11-30 1973-11-28 Apparatus for spinning loose fibres Expired - Lifetime US3861131A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7242546A FR2210684B1 (enrdf_load_stackoverflow) 1972-11-30 1972-11-30

Publications (1)

Publication Number Publication Date
US3861131A true US3861131A (en) 1975-01-21

Family

ID=9107974

Family Applications (1)

Application Number Title Priority Date Filing Date
US419546A Expired - Lifetime US3861131A (en) 1972-11-30 1973-11-28 Apparatus for spinning loose fibres

Country Status (6)

Country Link
US (1) US3861131A (enrdf_load_stackoverflow)
JP (1) JPS578895B2 (enrdf_load_stackoverflow)
CH (1) CH583309A5 (enrdf_load_stackoverflow)
DE (1) DE7341112U (enrdf_load_stackoverflow)
FR (1) FR2210684B1 (enrdf_load_stackoverflow)
GB (1) GB1424555A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258541A (en) * 1978-03-28 1981-03-31 Societe Alsacienne De Constructions Mecaniques De Mulhouse Open-end rotor with thread draw-off tube
US4757678A (en) * 1986-11-25 1988-07-19 Hans Stahlecker Open-end rotor spinning machine
US4773211A (en) * 1986-03-19 1988-09-27 W. Schlafhorst & Co. Arrangement for open-end spinning
US4796421A (en) * 1987-02-19 1989-01-10 Fritz Stahlecker Arrangement for open-end rotor spinning
US6446424B2 (en) 1999-12-04 2002-09-10 Rieter Ingolstadt Spinnereimaschinenbau, Ag Process and apparatus for the propagation of rotation at the tie-in point of an open-end spinning apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109630A (ja) * 1981-12-21 1983-06-30 Toyoda Autom Loom Works Ltd 結束紡績方法およびその装置
FR2532665A1 (fr) * 1982-09-08 1984-03-09 Alsacienne Constr Mat Tex Perfectionnement aux dispositifs de filature de fibres liberees
DE3348482C2 (de) * 1982-09-08 1997-08-14 Schurr Stahlecker & Grill Fadenabzugsrohr für eine OE-Rotorspinnvorrichtung
FR2566810B1 (fr) * 1984-06-28 1986-09-12 Inst Textile De France Procede et dispositif perfectionnes de filature du type a fibres liberees
DE3720967A1 (de) * 1987-06-25 1989-01-12 Schubert & Salzer Maschinen Fadenabzugsrohr zum abziehen eines fadens auf einer offenend-spinnvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336741A (en) * 1965-12-01 1967-08-22 Vyzk Ustav Bavlnarsky Twist equalizing spinning apparatus
US3778989A (en) * 1971-06-21 1973-12-18 Skf Kugellagerfabriken Gmbh Apparatus for withdrawing thread

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336741A (en) * 1965-12-01 1967-08-22 Vyzk Ustav Bavlnarsky Twist equalizing spinning apparatus
US3778989A (en) * 1971-06-21 1973-12-18 Skf Kugellagerfabriken Gmbh Apparatus for withdrawing thread

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258541A (en) * 1978-03-28 1981-03-31 Societe Alsacienne De Constructions Mecaniques De Mulhouse Open-end rotor with thread draw-off tube
US4773211A (en) * 1986-03-19 1988-09-27 W. Schlafhorst & Co. Arrangement for open-end spinning
US4757678A (en) * 1986-11-25 1988-07-19 Hans Stahlecker Open-end rotor spinning machine
US4796421A (en) * 1987-02-19 1989-01-10 Fritz Stahlecker Arrangement for open-end rotor spinning
US6446424B2 (en) 1999-12-04 2002-09-10 Rieter Ingolstadt Spinnereimaschinenbau, Ag Process and apparatus for the propagation of rotation at the tie-in point of an open-end spinning apparatus

Also Published As

Publication number Publication date
JPS578895B2 (enrdf_load_stackoverflow) 1982-02-18
DE7341112U (de) 1974-02-28
JPS4981636A (enrdf_load_stackoverflow) 1974-08-06
GB1424555A (en) 1976-02-11
FR2210684B1 (enrdf_load_stackoverflow) 1977-08-05
FR2210684A1 (enrdf_load_stackoverflow) 1974-07-12
CH583309A5 (enrdf_load_stackoverflow) 1976-12-31

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Date Code Title Description
AS Assignment

Owner name: MASCHINENFABRIK RIETER AG, 8406 WINTERTHUR, SWITZE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SOCIETE ALSACIENNE DE CONSTRUCTION DE MATERIEL TEXTILE;REEL/FRAME:004825/0103

Effective date: 19871228

Owner name: MASCHINENFABRIK RIETER AG, A CORP OF SWITZERLAND,S

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SOCIETE ALSACIENNE DE CONSTRUCTION DE MATERIEL TEXTILE;REEL/FRAME:004825/0103

Effective date: 19871228