US3478503A - Manufacture of a fancy yarn - Google Patents

Manufacture of a fancy yarn Download PDF

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Publication number
US3478503A
US3478503A US680906A US3478503DA US3478503A US 3478503 A US3478503 A US 3478503A US 680906 A US680906 A US 680906A US 3478503D A US3478503D A US 3478503DA US 3478503 A US3478503 A US 3478503A
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US
United States
Prior art keywords
yarn
needle
manufacture
fancy
yarns
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
US680906A
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English (en)
Inventor
Pierre Seguin
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.)
Moulinage et Retorderie de Chavanoz SA
Original Assignee
Moulinage et Retorderie de Chavanoz SA
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
Priority claimed from FR83494A external-priority patent/FR1507234A/fr
Priority claimed from FR83493A external-priority patent/FR1510909A/fr
Application filed by Moulinage et Retorderie de Chavanoz SA filed Critical Moulinage et Retorderie de Chavanoz SA
Application granted granted Critical
Publication of US3478503A publication Critical patent/US3478503A/en
Anticipated expiration legal-status Critical
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
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/36—Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs

Definitions

  • the present invention relates broadly to a novel device for the manufacture of a fancy textile yarn, specifically a yarn having a helical shape.
  • the invention relates further to a process for manufacturing such a fancy yarn.
  • the textile field has always presented an important area in the industrial processes of nations. Many uses are made of textiles principally, and most importantly, in the clothing field. However, the scope of the use of textiles extends to affect practically every area and every aspect of human life. In todays world, new uses for textiles are developed more rapidly than new methods of treating and producing textiles. Each new textile fiber composition, each new fiber shape, each new method of treating fibers and each new machine for treating fibers, broadens the feasible uses of textile fibers. Thus, as technology advances in the textile field, the advances create a pyramiding effect on the textile industry. However, even this pyramiding effect fails to meet the new demands for textiles.
  • This invention principally relates to a narrow part of the textile field, but due to the pyramiding effect of technological advances, the invention has potential applications throughout the broad textile industry.
  • the specific area most directly affected by this invention is the area of fancy textile yarns.
  • Fancy textile yarns are used in such applications as fur making and chenilles, but also extend to areas such as crepe fabrics, rug fabrics, and other areas incapable of enumeration.
  • the invention may be classified as affecting those fancy yarns comprising helically wound yarns.
  • Helically wound yarns are produced by coiling a yarn. It is known that any stress placed on a yarn will be retained to some degree, for example, housewives often curl ribbons by drawing them across a sharp edge. However, in specific applications, such as imitation furs and chenilles, the yarn must retain its coiled shape to a greater degree.
  • Previously used methods of setting a curl in a yarn involve softening the yarn and stressing it.
  • Other improvements comprise freezing the yarn after stressing by heat setting or evaporating a previously applied solvent.
  • the yarn on a package is placed upon a spindle and is led therefrom by suitable feeding means to a twister where it is twisted in a desired shape.
  • a twister In order to retain the desired twisted shape, the yarn must be treated to fix its artificial configuration.
  • the present invention provides a device and method for manufacturing a helical yarn by winding the yarn spirally on a fixed needle, heating the yarn in a spiral form, cooling the spiral yarn and receiving the set yarn continuously, wherein the said device principally comprises a rotary member having a needle which is held immobilized by magnetic means and an intermediate accumulator for heatset yarn.
  • the means for driving the rotary member are synchronized with means for advancing, accumulating and winding the helically wound yarn.
  • the means for accumulating the yarn comprises a member having an inlet and an outlet end mounted on a central pivot wherein the outlet end is provided with a weight to counterweigh yarn received at the inlet end.
  • the pivoted member rocks at the inlet end under the influence of an accumulation of yarn and in this way closes an electric circuit which activates a wind-up system.
  • the strip rocks again toward the outlet end of its own accord and accumulation reoccurs.
  • the device for the fixing of the yarn may comprise any known means.
  • it comprises a heater, for example an oven filled with saturated steam, which permits the setting of yarns of relatively high count, such as those utilized in the manufacture of imitation fur yarns, chenille, or carpet yarns.
  • the present invention also relates to a process for continuously manufacturing a helical fancy yarn by winding a yarn about a needle, heat-setting the turns thus formed, cooling and accumulating the said turns, and winding-up the yarn obtained, the said process being novel in providing a temporary accumulation step during the cooling operation and before the winding up step.
  • a further object is to provide means to produce the subject yarn wherein the yarn is fully cooled after being heat-set prior to any Winding-up or stressing operation.
  • Another object is to produce a yarn of the type described in a continuous manner by utilizing a stationary needle to receive a wound yarn prior to its being heat-set whereby yarn may be continuously wound on said needle while other parts of the apparatus are inoperative.
  • Another object of this invention is to provide a method of producing yarns which allows continuous production of a perfectly set fancy yarn.
  • Another object is to provide a method for producing fancy yarns which avoids the imposition of stresses on the yarn prior to its being fully cooled and fully set in its wound condition.
  • FIGURE 1 shows, diagrammatically, the needle and rotary number, and the heater inlet
  • FIGURE 2 is a longitudinal sectional view through the needle and its rotary member of FIGURE 1;
  • FIGURE 3 is a cross-sectional view taken along the line A-A' of FIGURE 2;
  • FIGURE 4 shows, diagrammatically, the yarn-accumulation device.
  • FIGURE 1 there is shown a section line B, upstream of which is the mechanical drive and supply (not shown) for the rotary .member and, a section line C downstream of which is the remainder of the heat-setting device as seen in FIGURE 4.
  • the two limits serve purely for the exclusion of those elements which do not form a part of the invention. Any conventional drive and supply means may be used, in connection with this invention.
  • a rotary shaft 1 carries a rotary member 2, shown in detail in FIGURES 2 and 3.
  • the rotary member 2 has an inlet 1a and outlet aper tures 2a and 2b.
  • the member 1 forms an axial conduit through inlet 1a and through member 2.
  • shaft 1 is hollow.
  • the downstream portion of 2 is recessed and encloses a shorter shaft 3 mounted on bearings 4 and 5 carrying a. pole piece 6 between the two bearings. Bearings 4 and 5 allow the body of member 2 to rotate while magnets 8 immobilize shaft 3.
  • a needle 7 forms an extension on shaft 3. The needle is slightly frustoconical.
  • the pole piece 6 is disposed in an air gap separating two opposite magnets 8 mounted on a support 9.
  • the magnetic flux is such that the pole piece 6 is within the influence of the flux.
  • the needle 7 penetrates, downstream, into the inlet tube 10 of a heater 11 (see FIGURE 1), thus providing a continuous path for a helical yarn through the apparatus.
  • a grooved roller 12 bears laterally against the needle 7 in accordance with a predetermined arc.
  • the said roller is positively driven at a slow speed by appropriate means (not shown) synchronized with the means for driving members 2 (not shown).
  • roller 12 may advance the coiled yarn along needle 7 at a rate synchronized with the rate of coiling in rotary member 2.
  • any suitable driving and synchronizing means may be utilized and such means form no limiting part of the present invention. Those skilled in the art may readily perceive satisfactory means.
  • the roller 12 is mounted on a lever 13 which pivots at 14 and which is biased by a spring 15 to provide contact with needle 7.
  • the heater 11 is prolonged in its downstream portion by a tube and a cranked tube 21, (see FIGURE 4), so that the path of the heated yarn is continuous and complete.
  • the device for accumulating and cooling the yarn comprises a hollow member 22 pivoting on a knife edge 23, or any other equivalent means having a low coeflicient of friction.
  • the inlet end receives yarn from the heater and the outlet feeds to the wind-up (not shown).
  • the member 22 is balanced by a weight 24 at its outlet and its rocking movement in the outlet direction is limited by an adjustable stop 25.
  • a point contact member 26 is fastened on the member 22 at the inlet end thereof.
  • the said contact member is made of metal having a good resistance to arcing, such as silver.
  • a drop of mercury 27 in a suitable holder constitutes the other contact element of the electric switch for triggering the winding-on mechanism.
  • the mercury switch is connected in series with a solenoid (not shown) and is adapted to energize the solenoid upon closing the circuit through contact 26.
  • the armature of the solenoid is used to activate the wind-up motor. Any equivalent switching means are contemplated, however, for example, the conventional mercury switch-solenoid device illustrated in US. Patent 2,557,783.
  • the device functions in the following manner:
  • the member 2 rotates at velocities on the order of 15,000 r.p.m. If desired, the yarn may be pretreated to adapt it to the coiling operation, e.g., by heat or solvent to soften it.
  • the yarn 28 forms turns which, under the influence of the thrust exerted by the roller 12, are displaced towards the end of the needle 7. Movement of the coiled yarn is assisted by the smooth surface of the needle and by its conicity in the direction of movement.
  • the contact When the contact activates the wind-up device, it may also deactivate driving roller 12 if such is necessary for smooth operation. In such a case, yarn accumulates on needle 7 and in heater 11. When the :weight of the yarn on the inlet side of the member has sufiiciently diminished, due to the winding-up step the member 22 rocks towards the outlet side, thus opening the electric circuit and stopping the winding-on mechanism. In extreme cases conventional means may be provided adjacent member 22 to aid in the cooling of the yarn, however, this is often not economical and in most cases is unnecessary.
  • the yarn accumulates once again and the cycle repeats.
  • the member 22 many be connected in the electrical circuit through the agency of the knife edge 23 to complete a circuit through the contact and strip and other electrical components.
  • the device according to the invention due to the high velocity of the rotary member 2 and the continuous nature :of the process, perimts a form of production which is useful from the industrial viewpoint. It may be utilized for any desired type of yarn, whether natural or synthetic, but it is particularly useful in the manufacture of imitation fur yarns, chenille and other yarns produced from synthetic threads such as polyamide, polyester, polyacrylonitrile, etc.
  • circuit for operating the apparatus described herein forms no part of the invention per se and those skilled in the art may readily devise suitable circuits for operating the invention. However, for simplicity the use of electrical contact and driving means as described is preferred.
  • a process for continously manufacturing fancy helically wound yarn comprising the steps of winding a yarn about a needle, sliding the formed coils of yarn free of the needle, heat-setting the helical turns in the absence of any appreciable stresses, completely cooling the helical turns free of the needle while accumulating the turns and before subjecting the turns to any appreciable stresses, and winding up the cooled turns in heat-set condition.
  • a device for the manufacture of fancy textile yarns including: a rotary mounted member having an axial bore therein permitting passage of the yarn through the bore and driving means; said member having a hollowedout inner portion coaxial and communicating with said bore; radial slots in said member communicating with said hollowed-out portion; the hollowed-out portion containing a needle mounted on bearings in said member; the needle carrying a polar part which is within the air gap of a magnet mounted outside the rotary member; means for continually advancing said yarn along said needle; a yarn setting chamber into which the needle extends, the needle terminating just inside the chamber so that the yarn falls off the needle in the chamber and is in a. complete relaxed state in the setting operation; and yarn collecting means.
  • Device further including yarn accumulation means receiving the yarn from the chamber, which permit the cooling of the yarn loops in a relaxed condition before collection.
  • the accumulation means includes a channel horizontally mounted on a central pivot, the extremity of said channel opposite the yarn receiving end being equipped with a counterweight, the yarn receiving extremity rocking or tilting under the effect, of a sutfcient weight of yarn being received with means to close an electrical circuit in response to said rocking or tilting which triggers the operation of the collecting means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
US680906A 1966-11-14 1967-11-06 Manufacture of a fancy yarn Expired - Lifetime US3478503A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR83494A FR1507234A (fr) 1966-11-14 1966-11-14 Dispositif de fabrication d'un fil en hélice
FR83493A FR1510909A (fr) 1966-11-14 1966-11-14 Perfectionnements aux dispositifs de fabrication de fils fantaisie

Publications (1)

Publication Number Publication Date
US3478503A true US3478503A (en) 1969-11-18

Family

ID=26174189

Family Applications (1)

Application Number Title Priority Date Filing Date
US680906A Expired - Lifetime US3478503A (en) 1966-11-14 1967-11-06 Manufacture of a fancy yarn

Country Status (5)

Country Link
US (1) US3478503A (fr)
BE (1) BE705403A (fr)
DE (1) DE1660495B2 (fr)
ES (1) ES347127A1 (fr)
GB (1) GB1196490A (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945602C (de) * 1955-08-30 1956-07-12 Karl Foerster Spinn- und Kraeuselmaschine fuer Gespinstfasern, insbesondere fuer Polstermaterial
US2980959A (en) * 1958-01-17 1961-04-25 Nat Plastic Products Company Curling fibers
US3039259A (en) * 1959-09-14 1962-06-19 Lenoble Daniel Apparatus for making simulated curled hair
US3050819A (en) * 1958-06-03 1962-08-28 Celanese Corp Manufacture of bulked fiber
US3057015A (en) * 1955-12-22 1962-10-09 David & David Inc Method for making simulated curly hair
US3071917A (en) * 1961-05-01 1963-01-08 Mousanto Chemical Company Apparatus for texturing yarn
US3147578A (en) * 1961-08-18 1964-09-08 Rhovyl Sa Apparatus for continuously producing curled yarns
US3200466A (en) * 1963-07-01 1965-08-17 Bancroft & Sons Co J Apparatus for crimping filaments
US3342026A (en) * 1964-09-16 1967-09-19 David & David Inc Method and apparatus for producing textured yarn

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945602C (de) * 1955-08-30 1956-07-12 Karl Foerster Spinn- und Kraeuselmaschine fuer Gespinstfasern, insbesondere fuer Polstermaterial
US3057015A (en) * 1955-12-22 1962-10-09 David & David Inc Method for making simulated curly hair
US2980959A (en) * 1958-01-17 1961-04-25 Nat Plastic Products Company Curling fibers
US3050819A (en) * 1958-06-03 1962-08-28 Celanese Corp Manufacture of bulked fiber
US3039259A (en) * 1959-09-14 1962-06-19 Lenoble Daniel Apparatus for making simulated curled hair
US3071917A (en) * 1961-05-01 1963-01-08 Mousanto Chemical Company Apparatus for texturing yarn
US3147578A (en) * 1961-08-18 1964-09-08 Rhovyl Sa Apparatus for continuously producing curled yarns
US3200466A (en) * 1963-07-01 1965-08-17 Bancroft & Sons Co J Apparatus for crimping filaments
US3342026A (en) * 1964-09-16 1967-09-19 David & David Inc Method and apparatus for producing textured yarn

Also Published As

Publication number Publication date
ES347127A1 (es) 1969-05-01
DE1660495A1 (de) 1971-06-16
BE705403A (fr) 1968-03-01
DE1660495B2 (de) 1977-03-10
GB1196490A (en) 1970-06-24

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