US3606655A - Process and apparatus for the continuous tension-free fixing and shrinking of cables of uncrimped filaments - Google Patents

Process and apparatus for the continuous tension-free fixing and shrinking of cables of uncrimped filaments Download PDF

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Publication number
US3606655A
US3606655A US859957A US3606655DA US3606655A US 3606655 A US3606655 A US 3606655A US 859957 A US859957 A US 859957A US 3606655D A US3606655D A US 3606655DA US 3606655 A US3606655 A US 3606655A
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cable
tube
injector
shrinking
fixing
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US859957A
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Siegfried Oberlander
Karl Ostertag
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B17/00—Storing of textile materials in association with the treatment of the materials by liquids, gases or vapours
    • D06B17/02—Storing of textile materials in association with the treatment of the materials by liquids, gases or vapours in superimposed, i.e. stack-packed, form; J-boxes

Definitions

  • Such an apparatus in which the yarn is deposited by means of an injector at random in loops or convolutions in a straight, vertically standing tube, operates satisfactorily only as long as the denier of the yarn is not too great and the yarn is deposited in the tube in a dry state.
  • Attempts to feed uncrimped yarn cables to an apparatus such as is described in the British patent in a moist state have failed, because such moist cables have a certain stiffnessand cannot be deposited satisfactorily in the tube with an injector positioned concentrically with the tube axis.
  • Furthermore, in the known apparatus there exists the danger that, through catching or entrainment of subsequent yarn loops, knots will form.
  • German Pat. 805,415 a single thread or yarn is deposited continuously in loop form in a stuffing box passage with rectangular cross section for the purpose of thermal aftertreatment, and in the process is pressed through this passage by two pressure shutters going up and down on the thread or yarn entry side of the passage.
  • This apparatus too, in which the thread or yarn is wound about two arms oifset from one another by 180 and is thereupon deposited in oval loops, is unsatisfactory for the continuous treatment in particular of moist cables of uncrimped yarns or threads, because of the stiffness of this cable and the danger of knotting as a consequence of an unorderly depositing of the cable in the passage.
  • 3,606,655 Patented Sept. 21, 1971 Ice Underlying the present invention is the problem of continuously fixing and shrinking without tension, cables of uncrimped threads or yarns whereby it is possible to subject moist and consequently stiff cables continuously to a thermal treatment in an operation wherein the feeding in and the drawing oif of the cable proceed without trouble, and the staying time of the thread cable in the treatment zone is precisely adjustable.
  • cable there is meant a chemical spun cable as defined in German standard DIN 60 001 (September 1964) under point 2.
  • the process of the invention for the continuous, tension-free fixing and shrinking of cables of uncrimped threads or yarns is characterized in that the cable is conducted by means of a compressible medium spirally through a tubular treatment zone, supplied to a winding device and during the passage through the treatment zone is subjected to a fixing and shrinking treatment.
  • the regulation of the staying time of the cable inside the treatment zone can be carried out by regulation of cable feed and draw-oft speeds to change the length of the coiled cable in the treatment zone or by increasing the friction between the coiled cable and the cylindrical wall of the treatment zone.
  • the staying time can be more simply regulated, however, if the cable is (1) supplied *by means of a compressible medium to a tubular treatment zone, (2) deposited in it spirally, (3) pressed through the treatment zone compressed in a tight coil by the weight of the subsequently fed and coiled cable, (4) drawn off from the treatment zone and (5) supplied to a winding device.
  • the thread cable during the passage through the treatment zone is subjected to the fixing and shrinking treatment.
  • the injector As compressible medium there can be supplied to the injector any gas which is not detrimental with respect to the particular cable.
  • the injector is driven by air. Care is to be taken that the compressible medium is removed from the cable after leaving the injector nozzle, so that no parts of the cable will be carried along by the turbulence of the flow to cause an undesired disorder in the coil windings.
  • the apparatus of the invention for the continuous tension-free fixing and shrinking of cables of uncrimped yarns or threads is characterized by a vertical tube, open at the bottom, and an injector positioned at the upper end of the tube and rotatably driven in a known manner.
  • the cable outlet opening is eccentric with respect to the axis of rotation of the injector.
  • the bottom end of the vertical tube is preferably arcuately bent laterally.
  • the bend of the lower end of the tube does not in itself need to be severe. A small angle of bending is sufficient if the tube is long enough so that frictional forces between the tubes cylindrical inner wall and the cable coil are sufiicient to provide a relatively tight or compact coiling.
  • the bending angle between the axis of the discharge end and the axis of the feed end of the tube is, however, preferably greater than 90, in order effectively to assure the relatively compact coiling and to make the tube length long enough to provide the desired residence time.
  • the axis of the cable outlet opening of the injector be directed obliquely downward toward the inside wall of the tube, since the cable is thrust obliquely downwardly by centrifugal and gravitational force components on emergence from the outlet opening, the outlet opening directed obliquely downwardly toward the inside wall of the tube is preferred. With this construction, any drawing of the cable over a sharp edge is prevented.
  • the cross section area of the tube enclosing the cable treatment zone can theoretically be of arbitrary size and of arbitrary form, since the cable leaving the orbiting, eccentric cable outlet opening deposits itself in a horizontal laterally unbounded layer at the top of the coiled cables cylindrical column.
  • the tube has preferably a circular cross section area which is smaller than the cross section area of the respective coils of said cable column if said coils were deposited on a fiat, laterally unbounded plane by the rotating injector.
  • FIG. 1 is a side elevation, partly in vertical section, the preferred embodiment of the invention
  • FIG. 2 is a vertical section of the rotating injector of FIG. 1;
  • FIG. 3 is a v-n diagram with velocity of cable feed and rate of revolution of the injector as the ordinates and various theoretical cable coil diameters plotted thereon.
  • the injector is supplied by the tube 2 with a compressible medium flowing the direction of a horizontal arrow 14.
  • the injector 1 is rotated in a known manner, for example by a belt and pulley 5.
  • the cable 3 and compressible medium are conveyed according to the invention through the eccentrically located cable discharge passage 23 to the eccentric, orbiting, discharge opening 4, preferably one directed obliquely downwardly toward the inside wall of the tube 6.
  • the compressible medium e.g., air
  • the compressible medium can escape through openings 7 in the direction of the arrows from the tube 6, to avoid disturbances caused by gas turbulence in the longitudinally tightly coiled cable column 3a as a result of excessively high gas velocities in the tube 6.
  • the cable 3 assumes a spirally downward path in the upper part of the tube 6 until it is laid on the upper end of the coiled column 3a, the layers of which become more and more longitudinally compacted.
  • the coiled cable column is conducted through a heating zone 8, the temperature of which sufiices to bring about the shrinking and fixing process.
  • the axis of the lower discharge end 6b of tube 6 forms with the axis of the vertical segment of tube 6 an angle a, which is designated as bending angle and, in the example represented, is greater than
  • the fixed, shrunken cable is compressed in the bend 6a of the tube 6.
  • the tubular discharge end is a part of the tube 6. It is, of course, also possible to use a tubular discharge end 612 which can be placed removably on the tube 6. When an alteration is desired, it can be interchanged with another end 6b to alter the bending angle a.
  • the fixed and shrunken cable is drawn off in the direction of arrow 9, i.e., in outlet direction of the tube end 6b. Because of the untangled coiling, the cable can be drawn off without diificulty and be supplied over deflection bars to a winding device (not shown).
  • a regulating device can provide for a uniform staying time or a uniform degree of filling. It is possible, for example, to have a photoelectric cell (not shown) above the heating zone monitor the height of coiled column 3a and to control the draw-off speed in response to the height level.
  • the diameter of the turns can be adapted in the case of different cable thicknesses to the frictional relations in the tube 6 by altering the injector turning rate, the feed velocity of the cable, e.g., by a pair of feed rollers above the injector, and the velocity of the compressible medium, e.g., through a choke valve on the tube 2. Thereby there is always assured an orderly coiling of the cable and its trouble-free draw-Off.
  • the injector is illustrated in detail in FIG. 2. It comprises a hollow stationary head 10 having an axially extending cable passage tube 11 mounted therein with a wear-resistant liner 12 at the mouth 13 into which the cable 3 is fed in the direction of the arrow 15.
  • the injector rotor is rotatably supported in the stationary head 10 by the ball bearing 27, the outer race of which is supported on the stationary head by the ring 17 and the inner race of which is supported on the rotating member by the ring 18.
  • the rotor 16 is rotated by the belt and pulley drive 5.
  • Air or other compressible medium is fed by the tube 2 and the passge 19 into the cylindrical space 20 surrounding the tube 11. It flows downwardly through the cylindrical passage 21 in the rotor 16 and thence into a constricted throat 22 surrounding the lower end of the cable feed tube 11. The air flowing through the throat passes into the curved passage 23 in the lower end of the rotor 16 and draws the cable therewith through the feed tube 11. The cable is thus fed in a spiral path as shown in FIG. 1 into the vertical tube 6.
  • the air or other compressible medium is discharged through the openings 7 in the upper portion of the vertical tube 6, and the cable 3 is laid in the longitudinally tight coil 3a in the lower portion of the vertical tube 6 below the openings 7, in which form it is subjected to the heat fixing treatment provided by the heated jacket 24 surrounding the lower portion of the tube 6.
  • a heating medium such as steam or other heating vapor or a heated liquid, is supplied to the jacket 24 through heating medium supply and discharge tubes 25 and 26.
  • the velocity of the compressible medium can vary within wide limits, it is preferably to be chosen of such a magnitude that the cable does not become slack as it is fed to the injector 1.
  • the smaller theoretical coil winding diameter is to be preferred over a greater diameter since a lower diameter fluctuation can be achieved.
  • a thread cable d 940 f. 140 of unstabilized, heat-resistant nylon 6,6ad-ipic acid-hexamethylene diamine polyamide (strength 63.8 Rkm.; extension 15.2%; boiling shrinkage 6.7%) is shrunk and fixed without tension.
  • the input velocity amounts to 200 m./min.; the draw-off speed fluctuates in dependence on the control between 185 m./min. and 210 m./min.
  • the mean staying time amounts to 3 min. 40 sec.
  • Comparative test lIn a comparative test a thread cable dtex 940 f. 140 of unstabilized, heat-resistant nylon 6.6 (strength 63.8 Rkm.;
  • the favorable results achieved through the invention can be further improved by increase of the residence time, for example, by lengthening the fixing zone.
  • the invention provides a process for the continuous tension-free fixing and shrinking of cables of uncrimped yarns by feeding by a compressible medium, e.g., air, a cable of uncrimped yarns into a vertical tubular fixing and shrinking zone while rotating the cable to cause it to feed into said zone in a spiral path. It forms a longitudinally tight coil and passes through the zone in this form while being subjected to an elevated temperature fixing treatment, e.g., 150-220 C.
  • the cable coil may be conveyed through the zone by its own weight, and preferably is discharged from the tubular zone by drawing it off from a tubular discharge end at an oblique angle to the vertical tubular zone.
  • the apparatus for the continuous tension-free fixing and shrinking of yarn cables comprises a vertical tube, a rotating cable injector at the upper end of said tube for feeding cable into said tube in a spiral path and forming in said tube a longitudinally tight coil of said cable, and a tubular discharge member at the lower end of said vertical tube with its longitudinal axis oblique with respect to the vertical axis of said vertical tube.
  • the tubular discharge member is connected with said lower end of said vertical tube by a tubular bend with the axis of said discharge member extending obliquely upwardly.
  • the axis preferably always is at an angle to the vertical axis of said vertical tube.
  • the injector has a rotor with a centrally axial cable passage extending therethrough with the lower end of said passage directed obliquely downwardly toward the inside wall of said vertical tube.
  • the circular cross section of said vertical tube is smaller than the cross section of the coiled, cylindical cable column if the latter were deposited in a flat laterally unbounded horizontal layer by said rotating injector.
  • the cable is conveyed into the vertical tube by injecting a stream of compressible medium into the cable passage through said rotating injector to feed said cable in a tension-free state through said injector and into said vertical tube.
  • a process for the continuous tension-free-fixing and shrinking of cables of uncrimped yarns of adipic acidhexamethylene diamine polyamide which comprises feeding in a rotating spiral coil by means of compressed air a moist cable of uncrimped yarns of adipic acid-hexamethylene dialnine polyamide into a tubular fixing and shrinking zone of uniform diameter and having a vertical axis in the form of a helical coil of said cable, said tubular zone having a diameter smaller than the diameter of the respective rotating spiral coils of said cable if said coils were deposited in a fiat, laterally unbounded, horizontal layer, passing said cable in a longitudinally tightly coiled helix through said zone by the accumulated weight of the coil of said cable at a rate to provide the desired residence time therein, and therein subjecting said cable to an elevated temperature fixing treatment.
  • tubular treatment zone includes a tubular bend and a tubular discharge end at an oblique angle to said vertical axis.
  • Apparatus for the continuous tension-free fixing and shrinking of yarn cables which comprises a vertical tube of uniform diameter, a rotating cable injector at the upper end of said tube for feeding cable into said tube in a spiral path and forming in said tube a longitudinally tight coil of said cable, said injector having a rotor with centrally axial cable passage extending therethrough, the lower end of said passage directed obliquely downwardly toward the inside Wall of said vertical tube, means for injecting a stream of compressible medium into the cable passage through said rotating injector to feed said cable in a tension-free state through said injector and into said vertical tube, a tubular discharge rnember at the lower end of said vertical tube with its longitudinal axis oblique with respect to the vertical axis of said vertical tube, and pas- References Cited UNITED STATES PATENTS 2,947,595 8/1960 Moelter 264168 2,971,243 2/1961 Burns 2872.l2 2,971,683 2/1961 Paulsen 2872.l2

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Ropes Or Cables (AREA)
US859957A 1968-10-09 1969-09-22 Process and apparatus for the continuous tension-free fixing and shrinking of cables of uncrimped filaments Expired - Lifetime US3606655A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681801976 DE1801976A1 (de) 1968-10-09 1968-10-09 Verfahren und Vorrichtung zum kontinuierlichen,spannungsfreien Fixieren und Schrumpfen von Kabeln aus ungekraeuselten Faeden

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US859957A Expired - Lifetime US3606655A (en) 1968-10-09 1969-09-22 Process and apparatus for the continuous tension-free fixing and shrinking of cables of uncrimped filaments

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US (1) US3606655A (es)
AT (1) AT324527B (es)
BE (1) BE737901A (es)
CH (1) CH507392A (es)
DE (1) DE1801976A1 (es)
ES (1) ES370612A1 (es)
FR (1) FR2020239A1 (es)
GB (1) GB1242758A (es)
LU (1) LU59582A1 (es)
NL (1) NL6914149A (es)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774384A (en) * 1972-02-28 1973-11-27 Leesona Corp Yarn processing post treatment
US3808652A (en) * 1968-12-31 1974-05-07 D Elliott Treatment of yarns
US3901015A (en) * 1973-02-08 1975-08-26 Rhone Poulenc Textile Method for cutting continuous yarns
US3921419A (en) * 1971-06-22 1975-11-25 Hacoba Textilmaschinen Apparatus for the continuous treatment of textile fibers
US4169707A (en) * 1976-11-04 1979-10-02 Etablissements Superba S.A. Process for treatment of yarn within a steaming chamber
US4392286A (en) * 1977-04-05 1983-07-12 Teijin Limited Apparatus for taking up a bundle of filaments
US4549361A (en) * 1982-12-10 1985-10-29 Rieter-Scragg Limited Yarn heater
EP0193891A2 (de) * 1985-03-05 1986-09-10 B a r m a g AG Heizeinrichtung für eine Kräuselmaschine
US4740054A (en) * 1983-08-11 1988-04-26 U.S. Philips Corporation Optical fiber cable including irreversibly preshrunk supporting element and method of making same
US20030226381A1 (en) * 2002-06-05 2003-12-11 Roberto Badiali Device for the continuous treatment of yarns with process fluids
EP3415674A1 (de) * 2017-06-13 2018-12-19 Fong's Europe GmbH Vorrichtung zum abgetafelten ablegen eines laufenden textilwarenstrangs

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808652A (en) * 1968-12-31 1974-05-07 D Elliott Treatment of yarns
US3921419A (en) * 1971-06-22 1975-11-25 Hacoba Textilmaschinen Apparatus for the continuous treatment of textile fibers
US3774384A (en) * 1972-02-28 1973-11-27 Leesona Corp Yarn processing post treatment
US3901015A (en) * 1973-02-08 1975-08-26 Rhone Poulenc Textile Method for cutting continuous yarns
US4169707A (en) * 1976-11-04 1979-10-02 Etablissements Superba S.A. Process for treatment of yarn within a steaming chamber
US4392286A (en) * 1977-04-05 1983-07-12 Teijin Limited Apparatus for taking up a bundle of filaments
US4549361A (en) * 1982-12-10 1985-10-29 Rieter-Scragg Limited Yarn heater
US4740054A (en) * 1983-08-11 1988-04-26 U.S. Philips Corporation Optical fiber cable including irreversibly preshrunk supporting element and method of making same
EP0193891A2 (de) * 1985-03-05 1986-09-10 B a r m a g AG Heizeinrichtung für eine Kräuselmaschine
US4680872A (en) * 1985-03-05 1987-07-21 Barmag Ag Yarn heating apparatus and method
EP0193891A3 (de) * 1985-03-05 1989-10-11 B a r m a g AG Heizeinrichtung für eine Kräuselmaschine
US20030226381A1 (en) * 2002-06-05 2003-12-11 Roberto Badiali Device for the continuous treatment of yarns with process fluids
EP1369520A3 (en) * 2002-06-05 2005-03-23 SAVIO MACCHINE TESSILI S.p.A. Device for the continuous wet treatment of yarns
US7140207B2 (en) 2002-06-05 2006-11-28 Savio Macchine Tessili S.P.A. Device for the continuous treatment of yarns with process fluids
EP3415674A1 (de) * 2017-06-13 2018-12-19 Fong's Europe GmbH Vorrichtung zum abgetafelten ablegen eines laufenden textilwarenstrangs

Also Published As

Publication number Publication date
LU59582A1 (es) 1970-01-09
FR2020239A1 (es) 1970-07-10
BE737901A (es) 1970-02-02
GB1242758A (en) 1971-08-11
ES370612A1 (es) 1971-08-01
AT324527B (de) 1975-09-10
CH507392A (de) 1971-05-15
DE1801976A1 (de) 1970-05-27
NL6914149A (es) 1970-04-13

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