US3842578A - Method and apparatus for threading yarn into a stretch and false twist crimping machine - Google Patents

Method and apparatus for threading yarn into a stretch and false twist crimping machine Download PDF

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Publication number
US3842578A
US3842578A US00303086A US30308672A US3842578A US 3842578 A US3842578 A US 3842578A US 00303086 A US00303086 A US 00303086A US 30308672 A US30308672 A US 30308672A US 3842578 A US3842578 A US 3842578A
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Prior art keywords
yarn
false
heating plate
twist
guide means
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US00303086A
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English (en)
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H Schippers
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Oerlikon Barmag AG
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Barmag Barmer Maschinenfabrik 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
    • D02G1/0273—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 threading up and starting the false-twisting machine

Definitions

  • ABSTRACT [30] Forelgn Apphcatmn Pnomy Data A method and apparatus for threading a combination Nov. 9. 1971 Germany 2155514 Stretch and false twist crimping machine having feed and draw rolls which continuously draw the yarn over [52) US. Cl 57/34 HS, 28/62, 57/106, an elongated heated plate and through a rotatable 57/157 TS false-twist spindle, at least one movable guide means 1 it.
  • False-twist crimping machines consist essentially of a feed means for the continuous delivery of a yarn taken off a supply spool and a heating device as well as a false-twist assembly and a draw means to at least maintain the yarn under a certain tension.
  • the yarn may be subjected to a second heat treatment and/or wound into a durably crimped product on a take-up spool or the like. The application of heat to the yarn has been carried out with contact heating devices and also with convection heating apparatus.
  • the false twisting is accomplished by means of a rapidly spinning false-twist spindle or by means of friction between the running thread and rotating wheels, drums or similar elements.
  • the initial yarn being delivered is most usually already in the form of a stretched yarn.
  • the servicing of false twist machines occurs randomly, i.e. each operating position of a multi-unit machine is serviced as needed while the other positions continue to function.
  • the present invention is particularly concerned with yet another version of such a combined stretching and false-twist crimping machine wherein the stretching occurs simultaneously with the crimping. This is accomplished by adjusting the relative speed as between the draw rolls or similar transporting means following the false-twist assembly and the feed roll or similar feed means preceding the heating device so that a stretching occurs simultaneously in the same step or stage as the false-twist and heat treatment of the yarn. (For example, see British Patent No. 777,625.)
  • the known combination of apparatus essentially includes spatially separated feed roll means and draw roll means for stretching a length of yarn therebetween, an elongated curved heating plate for contact with the yarn being stretched and positioned to receive the yarn from said feed roll means during normal operation and a false-twist spindle following said heating plate for imparting a temporary twist to the yarn at a point preceding said draw roll means.
  • the improvement of this apparatus in its broadest context accordingto the invention includes at least one yarn guide means adjacent one end of the elongated heating plate for movement substantially perpendicular to the plate from an open position in which the yarn is maintained free of contact with the plate to a closed position in which the yarn is maintained in running contact with the plate, the movement of the guide means between said open and closed positions being such that the yarn length between the feed roll means and the draw roll means remains substantially constant.
  • FIG. 1 is a schematic side elevational view of one embodiment of the invention in which a feed godet or set of feed rolls is itself movable to act as the essential yarn guide means for threading the combination stretch and false-twist crimping machine;
  • FIG. 2 is a schematic side elevational view of another embodiment of the invention in which the movable yarn guide means is positioned above a curved heating plate traversed twice by the running thread;
  • FIG. 3 is a front plan view of the same embodiment shown in FIG. 2;
  • FIG. 4 is another schematic front plan view of a contact heating plate adapted to receive a plurality of running yarns with several traversing runs each across the plate and with reversal elements above and below the plate as the movable yarn guide means;
  • FIG. 5 is a schematic perspective view of yet another embodiment of a stretch and false-twist crimping machine with a curved and slotted heating plate for a doubly traversing yarn path and at least one movable reversing element as the essential yarn guide means for threading the apparatus;
  • FIGS. 6, 7 and 8 illustrate schematic cross-sections of suitably enclosed heating zones where the contact heating plate is arranged near the upper end of the stretch and false-twist machine so as to require specially adapted movable yarn guide means for threading the machine at a point which is normally out of reach of the person tending the machine.
  • At least one yarn guide element or assembly which is movable in a path substantially perpendicular to the vertical plane of the heating plate while the yarn is fully engaged and running in the stretch and false-twist apparatus first out of contact with the heating plate and then in running contact with this plate.
  • this perpendicular movement which is subject to slight variation for obvious reasons, must occur while essentially maintaining a constant yarn length between the feed and draw means used for stretching the yarn.
  • the stretch and false-twist crimping machine generally requires a spool holder to carry the supply spool l of unstretched polyester yarn Y which is cold" in the sense that it is provided at room temperature and without any special heat treatment as it is fed into the machine.
  • Each processing position or unit of the machine also includes a feed mechanism 2 and a pair of draw rollers 3 or the like which can be controlled or regulated at different feed and draw speeds by any conventional control system 4 to stretch the yarn over the length between the nip points, i.e. so as to adjust the speed ratio between the feed point and draw point where the yarn is clamped or engaged in running contact with the feed and draw means, respectively.
  • Two fixed guide eyelets 5 and 6 direct the yarn Y in a normal operating path for contact with the slightly curved surface of heating plate 7 having an inlet 7a and outlet 7b for circulation of a heating medium.
  • the feed mechanism 2 itself is movable in a slightly curved path on a suitable track or guide rail as indicated by the double headed arrow so that it can be placed in a closed position 8 for normal operation of the machine or in an open position 9 for initial threading of the unit in accordance with the invention.
  • the yarn is taken from the supply spool 1, through eyelet 5 and engaged in the feed means 2 at its outermost or open position 9 opposite the bottom end of contact heating plate 7 and then taken through eyelet 6 adjacent the top of the plate 7 to be engaged with the false-twist spindle ll operated by drive belt 12.
  • the draw rolls 3 finally engage the yarn Y above the spindle 11 so that the yarn is continuously conducted through the apparatus and taken up onto a conventional winding package (not shown).
  • the threading of the yarn thus occurs while the feed mechanism as a movable guide means keeps the yarn out of contact with heater 7 without otherwise interfering with the essential threading and engagement of all other yarn-conducting or yarn-twisting elements of the apparatus.
  • the feed and guide means 2 is moved back into its closed position 8 to quickly engage the running yarn Y with the curved heated surface of plate 7. Only then is the false twist spindle ll brought up to its normal operating speed.
  • the contact heating plate 7 can be maintained at the normal operating temperature to receive a number of yarns in a corresponding number of stretch and false-twist crimping units of a single machine.
  • the initially threaded yarn of any given unit being placed in operation is preferably continuously drawn or stretched between the feed and draw points but with the false-twist spindle 11 only lightly engaged, i.e. in relatively loose frictional contact with drive belt 12, so that the initial revolutions of this spindle take place at a rate far below normal operating speed, eg more than about 20 percent and preferably 20-50 percent smaller than this normal operating speed.
  • the speed of the spindle can be increased up to full normal operating speed after the yarn is brought into contact over the entire length of the plate heating surface.
  • This procedure of the invention offers the advantage that only the running and stretched yarn, which is thus temperature sensitive, is applied onto the contact heating plate.
  • the movement of the yarn from its preliminary threading path into its normal operating path on the heating plate can lead to an excessive tension with yarn breakage or to a reduction in stretching with a melting of the yarn on the heating plate.
  • the low speed of the false-twist assembly during the initial threading stages causes a very favorable frictional relationship for the running yarn and tends to avoid excessive tension on the yarn.
  • the method of the invention permits a more certain and rapid threading of the yarn within an optimally short time and with a minimum of yarn breakage.
  • the path of the feed and guide means 2 represented by the double-headed arrow in FIG. 1 is essentially perpendicular to but preferably an involute of the curved contacting surface of the heating plate 7.
  • the particular stretch and false-twist crimping machine shown schematically in FIGS. 2 and 3 has a stretching zone formed between the speed regulated feed rolls 2 and draw rolls 3 which in this instance are placed below the heating plate 7 with its gilft 7a and outlet 717 for the fluid heating medium This permits the yarn Y to pass twice over the heated curved surface of the plate 7, e.g. somewhat at an angle as indicated in FIG. 3.
  • one can further provide another heating device such as the stretch pin 13, preferably between the feed rolls 2 and the heating plate 7'.
  • the yarn Y is conducted from the feed rolls 2 upwardly over the heated surface 7', preferably with preheating by wrapping about once around the fixed heating pin 13, and is then reversed to travel back downwardly again over the heated surface 7 by means of the guide or deflecting member 14 arranged close to the upper end of the contact heating plate.
  • the yarn Y then is taken off through the fixed eyelet guide 10 and the false-twist assembly 11 to the draw rolls 3'.
  • the deflecting member 14 By sliding the deflecting member 14 back and forth on the guide rail 15 between the open position 8' and the closed position 9', the yarn y is maintained out of contact or placed in contact with the curved surface of the heated plate 7.
  • the rail or track 15 is placed in such a manner as to be approximately perpendicular to the plate 7', i.e. so that the movement of the deflecting member 14 changes the yarn length between the draw and feed rolls only very slightly.
  • the perpendicular movement of the member 14 as a yarn guide means is essentially with reference to a plane tangential to the curved surface of the heating plate 7'.
  • the guide rail 15 is shown to be straight, it can also be formed as an involute to the surface of the contact heating plate or as an arc of relatively large radius.
  • Other minor variations in this structure or the arrangement of the movable yarn guide means are quite acceptable, provided they meet the requirement of maintaining the yarn length in the stretching zone between the feed and draw points.
  • each deflecting member 14a, 14b, 140" or 14b is constructed and mounted on a guide rail in the same manner as the member 14 in FIG. 2 so that every run of yarn across the face of the plate 7' can be moved into or away from contact with the heated surface of this plate.
  • the stretching carried out simultaneously with the false twist imparted by the spindle means 11 or 11" can be accomplished by means of adjusting the relative speeds of the paired feed and draw rolls 2'3 and 2",3".
  • Each pair of rolls l6',2 and 16",2" has a heated stretch pin 17' and 17" respectively associated therewith to provide sufficient heating of the yarn in this preliminary stretching zone.
  • All such paired rollers for the stretching of the yarn are easily regulated for adjustment of the amount of stretch by any suitable control means such as that indicated by the numeral 4 in FIG. 1.
  • the stretch and false-twist crimping arrangement shown in FIG. 5 is especially advantageous in providing two parallel passes of the yarn over and in contact with the preferably grooved surface of the heating plate 18.
  • a single fixed deflection member 19 is located below the heating plate 18 while another fixed guide 20 is situated directly after the feed means 2 such that the incoming yarn Y is placed in parallel alignment with the outgoing yarn Y being conducted to the false-twist assembly 11 and draw means 3.
  • One or two movable yarn guide members 21 and 22 are positioned above the plate 18, for example to provide a means of changing the yarn path by moving guide rod 21 in a track 23 from the normal operating position 8 to a position 9" where the yarn is maintained free of contact with the heated plate 18.
  • both rods 21 and 22 are of particular value in this embodiment because both rods can be jointly manipulated through predetermined paths which keep the total yarn length substantially constant for the stretching zone between the feed means 2 and draw means 3.
  • Such paths of movement of rods 21 and 22 can be straight, an arc with a large radius or an involute to the grooved and curved yarn contacting surfaces of the heated plate 18.
  • At least one of these guide rods 21 must follow a path which is approximately perpendicular to the plate while the other guide rod 22 may follow a parallel path or one extending in the same direction to maintain a constant yarn length or it may follow a path extending in a different direction.
  • rod 22 can travel upwardly while rod 21 is moved outwardly from position 8 to position 9". This is most advantageous in providing a definite parallel arrangement of the ingoing and outgoing yarns Y and Y within a relatively compact space.
  • FIGS. 68 are particularly preferred if the contact heating plate is to be located in the upper portion of the machine such that it is out of normal reach of anyone tending the machine. Stretching occurs in the yarn path extending from the feed rolls 2 to the draw rolls 3, the yarn passing twice over the heated plate 7 as in FIGS. 2 and 3.
  • the apparatus of FIGS. 6-8 is also characterized by the fact that the heating plate 7 is maintained in an at least partly enclosed box or casing to provide heat insulation and a certain degree of protection for the transported yarn. Therefore, it is essential under these conditions to provide a means of positioning the thread at a remote and relatively inaccessible location, for example near the upper end of the at least partly enclosed heating plate.
  • This positioning means essentially takes the form of an extension rod 24 with a suitable handle 25 for manipulative movement of the thread upwardly mounted in a holder 29 (FIG. 8) but is generally introduced so as to slide upwardly in a position which is essentially parallel to the thread contacting surface of the heated plate 7'.
  • the rod 24 carries a yarn guide element 30 which serves to receive the incoming yarn from the stretch feed means 2 as the yarn extends past or in contact with the heating plate 7' and then directs the yarn back again over the plate to the false-twist spindle l1 and then to the stretch draw means 3.
  • the rod 24 can be placed in a lowered position 24' so that the person tending the machine can reach the guide element 30' near the bottom end of the heating plate 7 for initial insertion of the yarn.
  • the rod is also capable of being fastened in a second position 24" where the guide element 30 retains the yarn ina path free of contact with the heating plate 7.
  • the yarn guide element 30 is connected to a lever 31 or 32 which pivots on the axis-33.
  • the lever 31 In threading the yarn and sliding the rod 24 into the second position 24", the lever 31 is located approximately parallel to the rod, i.e. in a retracted or withdrawn position.
  • the lever 31 or 32 is actuated by a boss or projection 35 or 35' extending from the casing 27 or 27' so as to pivot the lever and its guide element 30 into an extended or expanded position 36.
  • This extended position is maintained by locking the arm 24 in its third position by any suitable clamping or locking mechanism (not shown) so as to provide a firm support for the guide 30 and its lever 31 or 32.
  • this lever Any number of variations in the construction of this lever are feasible, for example using a two-armed lever 31 as in FIG. 6 or a single-armed lever 32 as in FIG. 7.
  • a torsion spring 37 When using this latter single-armed lever, it is preferable to maintain or resiliently urge the lever 32 into its parallel position by means of a torsion spring 37. Then, when the rod 24 is lowered to disengage the lever 32 from the boss 35', the lever automatically returns to its retracted position parallel to the rod.
  • the yarn guide element 30 is rigidly connected to the end of the rod 24 on an axis slightly inclined from a perpendicular to the rod axis.
  • the rod in this case can be pushed to its second position 24" in which the guide element 30" at this position is located in the upper region or above the contact heating plate 7 at a distance sufficiently far away to maintain the guided yarn in a path free of contact with the heating plate.
  • the rod 24 is pivotable with the member 29 so that the guide element can move to the position 36 and the rod and guide assembly clamped or locked in this position for maintaining the yarn in its normal operating path in contact with the heating plate 7.
  • FIGS. 6-8 are especially advantageous and most useful where it is desirable to locate the heating plate within a chamber 28 which is almost fully enclosed on all sides and provided with heat-insulated walls by the box or casing 27'.
  • the only opening 38 is that required for introducing and withdrawing the yarn, using an opening sufficiently large to also permit a complete withdrawal of the guide element 30 externally of the casing 27' so that the yarn can be inserted thereon.
  • the yarn length between the stretching feed and draw means are preferably limited to something less than 1 percent and preferably less than 0.1 percent of this stretching zone length. It will be apparent that this order of magnitude is attainable within the limitations of structure and position of the essential elements of the new combination.
  • the use of this combination in a stretch and false-twist crimping machine greatly facilitates threading of the yarn so as to reduce the labor and expense of tending such a machine. Also, a continuous supply of a high quality stretched and torque-crimped yarn is obtained with a minimum of waste or poor quality yarn.
  • an apparatus for the simultaneous stretching and false-twist crimping of a yarn said apparatus including spatially separated feed roll means and draw roll means for stretching a length of yarn therebetween, an elongated curved heating plate for contact with the yarn being stretched and positioned to receive the yarn from said feed roll means during normal operation and a false-twist spindle following said heating plate for imparting a temporary twist to the yarn at a point preceding said draw roll means, the improvement for threading said apparatus which comrpises at least one yarn guide means adjacent one end of the elongated heating plate for movement substantially perpendicular to said plate from an open position in which the yarn is maintained free of contact with the plate to a closed position in which the yarn is maintained in running contact with said plate, the movement of said guide means between said open and closed positions being such that the yarn length between said feed roll means and said draw roll means remains substantially constant.
  • An apparatus as claimed in claim 3 including a plurality of yarn guide means to traverse the yarn back and forth at least twice across said heated plate, there being at least one of said movable yarn guide means at a deflection point of the traversing yarn adjacent one end of the heating plate.
  • An apparatus as claimed in claim 4 wherein said heated plate is positioned at the upper end of the stretch and false-twist crimping apparatus, the movable yarn guide means being pivotably mounted on an extension rod means for introduction of the yarn first on a line parallel to the heating plate up to a position at the upper end of the heating plate corresponding to said open position and then in a direction approximately perpendicular to the heating plate through the pivotal movement of the yarn guide means into a position corresponding to said closed position in which the yarn is maintained in running contact with the plate.
  • An apparatus as claimed in claim 3 including a plurality of yarn guide means to conduct the yarn back and forth through the Zone of the heating plate around a deflection point at one end of the heating plate such that the back and forth paths of the yarn are substantially parallel to each other, there being provided two movable yarn guide rods at the other end of the heating plate to carry the parallel running yarn paths and to provide a movement by at least one of said guide rods perpendicularly to the heated surface of the heating plate and a combined movement of both rods to maintain said constant yarn length.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US00303086A 1971-11-09 1972-11-02 Method and apparatus for threading yarn into a stretch and false twist crimping machine Expired - Lifetime US3842578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2155514A DE2155514B2 (de) 1971-11-09 1971-11-09 Arbeitsverfahren zum Anlegen des Fadens an eine Streck- und Falschdrahtkräuselmaschine

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US3842578A true US3842578A (en) 1974-10-22

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US00303086A Expired - Lifetime US3842578A (en) 1971-11-09 1972-11-02 Method and apparatus for threading yarn into a stretch and false twist crimping machine

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US (1) US3842578A (enrdf_load_stackoverflow)
JP (1) JPS4875813A (enrdf_load_stackoverflow)
CH (1) CH543612A (enrdf_load_stackoverflow)
DE (1) DE2155514B2 (enrdf_load_stackoverflow)
FR (1) FR2160102A5 (enrdf_load_stackoverflow)
GB (1) GB1394263A (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905185A (en) * 1973-09-26 1975-09-16 Barmag Barmer Maschf Apparatus for applying threads on heating systems of textile machines
US3971201A (en) * 1974-08-16 1976-07-27 Barmag Barmer Maschinenfabrik Aktiengesellschaft False-twist crimping machine
US4008560A (en) * 1975-03-07 1977-02-22 Heberlein Maschinenfabrik Ag Threading device for a false-twist texturing machine without upper structure
US4110964A (en) * 1973-05-01 1978-09-05 Monsanto Company Draw texturizing process
US4171201A (en) * 1976-10-28 1979-10-16 Rieter Machine Works, Ltd. Apparatus for threading up and placing a thermoplastic thread on a heating device of a textile machine
US4185450A (en) * 1976-12-24 1980-01-29 Snia Viscosa Societa' Nazionale Industria Applicazioni Viscosa S.P.A. Process for the texturization of polycapronamide fibres and texturized polycapronamide fibres obtained according to the process
US4805394A (en) * 1978-12-25 1989-02-21 Murata Kikai Kabushiki Kaisha Method and apparatus for false twisting
US5193334A (en) * 1989-12-01 1993-03-16 Barmag Ag Yarn false twist crimping apparatus and method of threading same
US5369945A (en) * 1992-02-10 1994-12-06 Barmag Ag Method and apparatus for controlling the yarn tension in a false twist texturing machine
US5404705A (en) * 1992-07-24 1995-04-11 Teijin Seiki Co., Ltd. Apparatus for heat treating a synthetic yarn during false-twist texturing
US5664409A (en) * 1995-06-30 1997-09-09 Barmag Ag Method of controlling the tension of an advancing yarn
US5896976A (en) * 1996-09-12 1999-04-27 Barmag Ag Height adjustable yarn guide for false twist texturing machine
US20040182066A1 (en) * 2001-10-10 2004-09-23 Saurer Gmbh & Co. Kg Yarn Texturing machine for producing a composite yarn
FR2870838A1 (fr) * 2004-06-01 2005-12-02 Rieter Textile Machinery Fr Procede de pilotage des organes d'entrainement lineaire d'un produit filiforme notamment un fil textile pendant la phase de demarrage
EP2969474A4 (en) * 2013-03-15 2016-09-28 Shimano American Corp DEVICE AND METHOD FOR PRODUCING A TAPERED CABLE THROUGH HEATED LIQUID

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237088B2 (enrdf_load_stackoverflow) * 1973-10-23 1977-09-20
JPS537977B2 (enrdf_load_stackoverflow) * 1974-02-07 1978-03-24
CH606536A5 (enrdf_load_stackoverflow) * 1975-07-05 1978-11-15 Barmag Barmer Maschf
DE2660060C2 (de) * 1976-03-27 1985-09-05 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zum Erzeugen eines Kernmantelfadens
DE3311777C2 (de) * 1983-03-31 1987-10-01 D.I.E.N.E.S. Apparatebau GmbH, 6052 Mühlheim Vorrichtung zur Wärmebehandlung synthetischer Fäden
DE3328449C2 (de) * 1983-08-06 1986-02-27 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Vorrichtung zum Strecken und Schären von thermoplastischen Kettfäden
EP0761854B1 (de) * 1995-08-16 1999-12-01 B a r m a g AG Texturiermaschine mit pneumatischem Fadenanleger

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110964A (en) * 1973-05-01 1978-09-05 Monsanto Company Draw texturizing process
US3905185A (en) * 1973-09-26 1975-09-16 Barmag Barmer Maschf Apparatus for applying threads on heating systems of textile machines
US3971201A (en) * 1974-08-16 1976-07-27 Barmag Barmer Maschinenfabrik Aktiengesellschaft False-twist crimping machine
US4008560A (en) * 1975-03-07 1977-02-22 Heberlein Maschinenfabrik Ag Threading device for a false-twist texturing machine without upper structure
US4171201A (en) * 1976-10-28 1979-10-16 Rieter Machine Works, Ltd. Apparatus for threading up and placing a thermoplastic thread on a heating device of a textile machine
US4185450A (en) * 1976-12-24 1980-01-29 Snia Viscosa Societa' Nazionale Industria Applicazioni Viscosa S.P.A. Process for the texturization of polycapronamide fibres and texturized polycapronamide fibres obtained according to the process
US4805394A (en) * 1978-12-25 1989-02-21 Murata Kikai Kabushiki Kaisha Method and apparatus for false twisting
US5193334A (en) * 1989-12-01 1993-03-16 Barmag Ag Yarn false twist crimping apparatus and method of threading same
US5369945A (en) * 1992-02-10 1994-12-06 Barmag Ag Method and apparatus for controlling the yarn tension in a false twist texturing machine
US5528893A (en) * 1992-07-24 1996-06-25 Teijin Seiki Co. Ltd. Method for heat treating a synthetic yarn during false-twist texturing and a method for rethreading a yarn
US5404705A (en) * 1992-07-24 1995-04-11 Teijin Seiki Co., Ltd. Apparatus for heat treating a synthetic yarn during false-twist texturing
US5664409A (en) * 1995-06-30 1997-09-09 Barmag Ag Method of controlling the tension of an advancing yarn
US5896976A (en) * 1996-09-12 1999-04-27 Barmag Ag Height adjustable yarn guide for false twist texturing machine
US20040182066A1 (en) * 2001-10-10 2004-09-23 Saurer Gmbh & Co. Kg Yarn Texturing machine for producing a composite yarn
US6840032B2 (en) * 2001-10-10 2005-01-11 Saurer Gmbh & Co. Kg Yarn texturing machine for producing a composite yarn
FR2870838A1 (fr) * 2004-06-01 2005-12-02 Rieter Textile Machinery Fr Procede de pilotage des organes d'entrainement lineaire d'un produit filiforme notamment un fil textile pendant la phase de demarrage
WO2005118448A1 (fr) * 2004-06-01 2005-12-15 Rieter Textile Machinery France Procede de pilotage des organes d'entrainement lineaire d'un produit filiforme notamment un fil textile pendant la phase de demarrage et le dispositif de mise en oeuvre
US20070277717A1 (en) * 2004-06-01 2007-12-06 Rieter Textile Machinery France Method For Control Of Linear Drive Devices For A Thread-Like Product In Particular A Textile Thread During The Start-Up Phase And Device For Carrying Out The Same
EP2969474A4 (en) * 2013-03-15 2016-09-28 Shimano American Corp DEVICE AND METHOD FOR PRODUCING A TAPERED CABLE THROUGH HEATED LIQUID
US9776369B2 (en) 2013-03-15 2017-10-03 Shimano American Corp. Heated liquid tapered line production device and method
US9956734B2 (en) 2013-03-15 2018-05-01 Shimano Amercian Corp. Heated liquid tapered line production device and method

Also Published As

Publication number Publication date
JPS4875813A (enrdf_load_stackoverflow) 1973-10-12
GB1394263A (en) 1975-05-14
DE2155514A1 (de) 1973-05-17
DE2155514B2 (de) 1975-08-14
FR2160102A5 (enrdf_load_stackoverflow) 1973-06-22
CH543612A (de) 1973-10-31

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