US3508343A - Yarn temperature and humidity control - Google Patents

Yarn temperature and humidity control Download PDF

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Publication number
US3508343A
US3508343A US718735A US3508343DA US3508343A US 3508343 A US3508343 A US 3508343A US 718735 A US718735 A US 718735A US 3508343D A US3508343D A US 3508343DA US 3508343 A US3508343 A US 3508343A
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United States
Prior art keywords
yarn
air
chamber
inlet
flag
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Expired - Lifetime
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US718735A
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English (en)
Inventor
Oskar Lippuner
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HERBERLEIN AND CO AG
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HERBERLEIN AND CO AG
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist

Definitions

  • This invention relates to a process and apparatus for influencing the temperature and humidity of yarn or thread-like elements by a current of air, and is useful, for example, in the treatment of textile yarns.
  • the yarns may be heated to a plastic condition, deformed while plastic, and cooled so that the deformation is fixed. Heating may be achieved, for example, by means of hot air or by passing the yarn over a heated surface; and cooling is usually effected by passing the yarn a given distance through ambient air, say at room temperature.
  • the present invention contributes a method and apparatus which eliminates the foregoing difficulties and disadvantages and permits a high degree of heating and cooling of yarn advancing at high speed through a relatively short distance.
  • by invention is based upon the concept of causing the yarn to oscillate while advancing through a current of air or gas at given temperature and humidity conditions, the current of air or gas moving transversely to the direction of movement of the yarn.
  • I prefer to cause the air or gas to move through a narrow slit or opening in a flow chamber in front of which the yarn passes, and I provide guide means for assuring correct positioning of the yarn as it passes the slit.
  • I also induce turbulence in the air or gas entering the slot so as to cause the moving yarn to vibrate in the path of moving air thus to enhance the heat transfer from or to the yarn, as the case may be.
  • FIG. 1 is a perspective view of apparatus according to the present invention with a yarn end indicated in chain lines;
  • FIG. 2 is a side view of one form of part the apparatus of FIG. 1;
  • FIG. 3 is a cross-sectional view taken along the line 33 of FIG. 2;
  • FIG. 4 is an enlarged view illustrating details of FIG. 3;
  • FIG. 5 illustrates a modification of the apparatus of the previous figures.
  • FIG. 6 is a cross-sectional view taken along the line 6-6 of FIG. 5.
  • FIG. 1 there is shown a suction conduit 10 which may extend along the entire length of the frame of a machine having a number of yarn treating stations.
  • One end of the conduit (the right end or as viewed) is connected to the suction end of an encased blower or fan 11.
  • the conduit is also formed with a number of openings 12, each of which communicates with a suction chamber 14 so that air is led through the suction chambers and the conduit to the blower.
  • suction chambers 14 comprise a body 15 extending in the direction of movement of the. yarn to be processed and tapered inwardly in a direction away from the conduit 10 to provide a diffusing effect for the air entering same through a narrow slit-like opening 16 and a nozzle 17 at its connection to the conduit 10.
  • Each chamber 14 is positioned below a corresponding heating device 19, and is reduced in its vertical length in a direction toward the conduit (FIGS. 1 and 2).
  • the inlet ends of the chambers 14 may be mutually joined, as shown in FIGS. 3 to 6, by a plurality of approximately equally spaced traverse bolts 20; and it has been found advantageous to provide these bolts with recesses 21 for guiding the moving yarn.
  • a plurality of approximately equally spaced traverse bolts 20 it will be understood that the respective bolts may, in fact, be formed with several such recesses so that each chamber may accommodate a plurality of yarns moving in parallel to each other.
  • At least that part of the bolts over which the yarn runs should either be formed of very hard material or should be highly polished to minimize friction; or the contact surface may be covered with a coating of an artificial composition of low superficial energy such as fluoro polymer to prevent size on the yarn from adhering to the surface; or the surface may be chrome plated for easy cleaning.
  • a flag 22 which extends approximately the full length of the inlet and which may consist simply of a piece of flat or slightly bent metal or the like. It is preferred, however, that the flag be positioned to interfere with the normal flow of air into the inlet and that it present a relatively abrupt edge in the vicinity of the yarn.
  • the side pieces of 'the body 15 be curved outwardly, and the flag 22 may be afiixed tangentially to one of the curved surfaces.
  • FIGS. 5 and 6 there is shown a modified form of the inlet end of the chambers according to which the flag 24 is formed of a U-shaped tubular or cylindrical piece with its bight extending parallel to and adjacent the yarn. As shown, the free ends of these flags may be bolted to one of the body side pieces, and of course one or more vertically spaced flags of this type may be used with each chamber.
  • the blower 11 draws ambient air through the conduit 10, each opening 12 and each chamber 14.
  • the current of air entering each chamber flows against the respective flag or flags, as the case may be, so that a rather high turbulence is produced just downstream of the flag and substantially along the longitudinal aXis of the yarn, thus inducing lateral vibrations or oscillations in the advancing yarn, the frequency of which oscillations is influenced by the yarn tension.
  • the traverse bolts 20 form points of junction or nodes of the oscillations, wherefore the spacing between bolts must be such as to permit sufficient oscillation therebetween when considered in light of the yarn tension and the volume and climatic conditions of the air being drawn past the yarn, and without allowing the yarn to contact either side piece of the chamber body.
  • Apparatus for controlling temperature and humidity of rapidly longitudinally advancing yarn comprising; a diffuser chamber formed with a narrow inlet extending in the direction of movement of the yarn, means drawing air through said chamber and inlet, and means guiding the yarn along a path adjacent said inlet, said yarn guide means extending across said inlet at regularly spaced intervals.
  • each guide means is formed with at least one recess for receiving and guiding a yarn.
  • Apparatus for influencing temperature and humidity of rapidly longitudinally advancing yarn comprising a diffuser chamber formed with a narrow inlet extending in the direction of movement of the yarn, means drawing air through said chamber and inlet, means guiding the yarn along a path adjacent said inlet, and means inducing appreciturbulence in that region of air entering the inlet through which the yarn passes.
  • turbulence inducing means comprises at least one flag positioned upstream of the yarn in the air stream and terminating abruptly adjacent the yarn.
  • Apparatus according to claim 5, wherein the flag comprises a length of wire, a portion of which extends parallel to the longitudinal axis of the yarn.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US718735A 1967-04-21 1968-04-04 Yarn temperature and humidity control Expired - Lifetime US3508343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH572067A CH501749A (de) 1967-04-21 1967-04-21 Verfahren zur Behandlung von Textilgarnen

Publications (1)

Publication Number Publication Date
US3508343A true US3508343A (en) 1970-04-28

Family

ID=4298233

Family Applications (1)

Application Number Title Priority Date Filing Date
US718735A Expired - Lifetime US3508343A (en) 1967-04-21 1968-04-04 Yarn temperature and humidity control

Country Status (5)

Country Link
US (1) US3508343A (enrdf_load_stackoverflow)
CH (3) CH572067A4 (enrdf_load_stackoverflow)
DE (1) DE1760187B2 (enrdf_load_stackoverflow)
FR (1) FR1559997A (enrdf_load_stackoverflow)
GB (1) GB1224377A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS160439B1 (enrdf_load_stackoverflow) * 1973-02-09 1975-03-28

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955977A (en) * 1929-08-06 1934-04-24 United Res Corp Nozzle
DE652238C (de) * 1937-10-27 A Hering Ag Vorrichtung zum Trocknen von Papierbahnen
FR1149169A (fr) * 1955-03-14 1957-12-20 Vits Elektro G M B H Installation de tuyères de soufflerie pour sécheuses pour produits sous forme de bande
US3041739A (en) * 1956-12-15 1962-07-03 Meier-Windhorst August Nozzle arrangement for drying and heat-treatment plants for web material
US3358315A (en) * 1966-04-14 1967-12-19 Fitchburg Paper Fluid conducting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE652238C (de) * 1937-10-27 A Hering Ag Vorrichtung zum Trocknen von Papierbahnen
US1955977A (en) * 1929-08-06 1934-04-24 United Res Corp Nozzle
FR1149169A (fr) * 1955-03-14 1957-12-20 Vits Elektro G M B H Installation de tuyères de soufflerie pour sécheuses pour produits sous forme de bande
US3041739A (en) * 1956-12-15 1962-07-03 Meier-Windhorst August Nozzle arrangement for drying and heat-treatment plants for web material
US3358315A (en) * 1966-04-14 1967-12-19 Fitchburg Paper Fluid conducting apparatus

Also Published As

Publication number Publication date
DE1760187B2 (de) 1974-10-17
GB1224377A (en) 1971-03-10
FR1559997A (enrdf_load_stackoverflow) 1969-03-14
CH572067A4 (enrdf_load_stackoverflow) 1970-09-30
DE1760187A1 (de) 1972-03-09
CH501749A (de) 1970-09-30
CH494837A (de) 1970-08-15

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