US3604659A - Method of drawing and winding a thread of endless filament and apparatus for implementing same - Google Patents

Method of drawing and winding a thread of endless filament and apparatus for implementing same Download PDF

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Publication number
US3604659A
US3604659A US827449*A US3604659DA US3604659A US 3604659 A US3604659 A US 3604659A US 3604659D A US3604659D A US 3604659DA US 3604659 A US3604659 A US 3604659A
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Prior art keywords
rolls
thread
threads
winding
pair
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Expired - Lifetime
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US827449*A
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English (en)
Inventor
Rudolf Jaeggli
Olivier Wust
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00—Collecting the newly-spun products

Definitions

  • the present invention concerns a method of drawing and winding threads of endless filament emerging from the lower end of a spinning cabinet and also relates to an apparatus for implementing the aforesaid inventive method.
  • the thread was taken off downwards from a bobbin, produced on a takeup machine arranged below the spinning cabinet, said bobbin being reeled above the machine, and was drawn in a drawing device transferring the thread from an upper level down to a lower level, and if desired was relaxed in a subsequent relaxation zone. Subsequently the thread was wound onto a bobbin without imparting twist, using a winding device permitting small traverses or using a thread-traversing device provided with a tension sensitive swinging arm permitting large traverses.
  • the drawing device In spin-drawwinding, furthermore, due to the high thread speeds, and due to the requirement of heating the thread onthe draw rolls necessitated by said high thread speeds, the drawing device must be designed difierently from the ones used in the known draw-winding process using cold draw rolls, or possibly one heated draw roll, and stationary heaters upon which the thread is gliding.
  • rolls of greater axial length must be provided in order to permit a number of thread wraps as large as possible and thus a longer contact time of the thread on the heated roll for sufficiently heating the thread.
  • the separator roll must also be heated and its diameter can no longer be kept small if a heating device must be placed inside. Larger roll diameters are also needed in order to keep rotational speeds within reasonable limits at the higher thread speeds.
  • the relaxing roll from which the thread would be transferred to the winding device arranged below, would beplaced extremely far out, so that operator access to the upper rolls placed farther inside would be impossible, particularly if the winding bobbin arranged below is placed considerably in front of the traversing pointjthis being the usual arrangement if the thread is wrapped halfway around a drive roll before being taken up by the winding bobbin.
  • Yet a further object of the invention is to provide the free thread path length to the traversing device needed to avoid said overstretching without increasing the height of the machine nor arranging the drawing device at an unduly high level which would be undesirable for operating the machine. Furthermore, due to takeup speeds of the thread emerging from the spinning cabinet of about 1,000 meters per minute and due to the winding speeds mentioned above of about 3,000 meters per minute in drawing and winding directly from a spinning cabinet, it is required that not only the diameter of the thread-carrying rolls in the drawing device be enlarged, but particularly that a sufficient contact time of the thread on the heated roll be achieved, the axial length of which is to be extended.
  • This length as mentioned before, being at least four times the roll length generally used thus far on draw-twisting and draw-winding machines, and the wraps of thread being spread from the inner end of each roll to its free outer end in order to make full use of said length, necessitates an axially displaced arrangement of the subsequent rolls and thus an undue width of the machine, particularly if the group of rolls must form a predrawing zone, a drawing zone and a relaxing zone so that three consecutive drawing and relaxing zones are provided.
  • An additional object of the invention therefore also consists in reducing the width of the machine and thus in improving accessibility of the draw rolls and of the winding devices. Furthermore, a large traverse is to be'achieved in spite of the elimination of a tension sensitive swinging arm.
  • a further characteristic of the method is that the thread path to the next pair of rolls. is chosen such that the point where the thread reaches the upper pair of rolls to form the first wrap always iscloser to the machine than thelast point, where the thread leaves the next lower pair of rolls.
  • the apparatus for implementing the method according to the invention is characterized in that a first pair of rolls taking up the thread emerging from the spinning cabinet is arranged at the bottom and that the pairs of rolls taking the thread from said first pair are arranged one above the other slightly displaced axially step by step by less than the working width and are slightly inclined with respect to said first pair of rolls.
  • the machinegauge between two groups of rolls can be kept very small, as the stepwise axial displacement to the outside of the superimposed rolls permits, at least partially, the arrangement of the thread-traversing triangle in front of the pairs of rolls of a group of rolls at a small distance of the machine instead of a lateral arrangement of said triangle between two groups of rolls, which would necessitate a wide gauge, as a large intermediate space would be needed to accommodate the wide traverses required.
  • FIG. 1 represents a front view of a spin-draw-winding machine according to this invention
  • FIG. 2 is an elevational view, partially in section of the machine shown in FIG. 1;
  • FIG. 3 is a front view of an alternate embodiment of the invention.
  • FIG. 4 is an elevational view of the machine shown in FIG.
  • FIG. 5 is a front view of a further alternative embodiment provided with two winding devices for reaching spinning point;
  • FIG. 6 is a front view of an alternative design having four winding devices for each spinning point
  • FIG. 7 is an elevational view, partially in section of a still further alternative embodiment or arrangement to that of FIG. 2;
  • FIGS. 8 and 9 represent two respective front views of two further embodiments, in which two mutually overlapping winding devices are provided for each spinning point.
  • FIGS. 1 and 2 a winding device is illustrated wherein the undrawn endless filaments, emerging'from the lower end of a spinning cabinet 2, contact a preparation roll 3, pass a guide 5 collecting said filaments into a strand 4, called thread in the following, vertically down with a roll 6 forming with a roll 7 a first pair 8 of rolls, said rolls 6 and 7 rotating at a circumferential speed of approx. 1,000 meters per minute.
  • the pairs of rolls 9, 10 and 11 of a group of rolls 12 are similarly arranged.
  • a plurality of wraps 13 (FIG.
  • Each roll of a group is provided with a heating device located inside the roll (not shown).
  • the thread leaving roll 7 of the first pair of rolls 8 near free end 14 of the roll 7 is predrawn or initially tension drafted l to 300 per cent and contacts the'axially inward part of a roll shown as the left roll of a roll pair 9 in FIG. 1 arranged above the roll pair 8, the axles or shafts of roll pair 9 pointing upwardly forming an angle a of 4 to 10 (see FIG. 2) with respect to the horizontal HO.
  • the ratio of height to base length of 6 to I mentioned above thus is the lower admissible limit at the processing speeds considered.
  • the relaxing l1 and the rolls 10 may be used as a setting zone, if both pairs of rolls are rotating at the same circumferential speed, without any changes in the yarn path. All rolls are driven individually by an electrical motor M provided for each.
  • FIGS. 3 and 4 A further possible arrangement of the yarn path in a spindraw-winding machine is depicted in the alternative embodiment shown in FIGS. 3 and 4.
  • the arrangement of the drawrolls does not differ from the one shown in FIGS. I and 2, however, bobbin 18 as well as drive roll 19 and the grooved roll 20 actuating the traversing movement are arranged at right angles to the lengthwise axis of the machine.
  • This alternative design thus differs from the one shown in FIGS. 1 and 2 in that the triangle A, B, C, formed by the traversing thread is arranged in a plane E at right angles to the plane L coinciding with the backwall of the machine.
  • the traversing triangle A, B, C may be placed very far inside towards the center of a section in front of the groups of rolls (FIG. 3) without the danger of contact between the rolls and the thread in its extreme inside position.
  • the width of the machine including the winding device exceeds the width needed for the lowest rolls only by somewhat more than the traversing width (FIG. 4). This arrangement permits an additional reduction of the space required in comparison to the design embodiment shown in FIGS. 1 and 2.
  • FIG. 5 Another alternative embodiment is shown in FIG. 5.
  • the filament strand emerging from the spinning cabinet is divided into two parallel threads 24 and 27 by two thread guides 22, 23. Said threads are drawn and relaxed together, both threads being placed side by side on the rolls in the known manner.
  • One of the threads (24) is taken up by the winding device 26 after leaving relaxing roll 25.
  • the other thread 27 is taken up by the winding device 29 after leaving roll 28. In this manner two winding devices may be accommodated within one sectron.
  • the strand of filaments emerging from the spinning cabinet is divided by means of four thread guides into an array of four parallel threads which are drawn and relaxed together.
  • Two threads 31 after leaving relaxing roll 32 jointly pass via traversing thread guide 33 onto drive roll 34.
  • One of the threads 31 is then taken up by bobbin 35 resting on the drive roll 34, while the other thread 31 follows the drive roll 34 further until it is taken up by bobbin 36.
  • the remaining two threads '37 after leaving roll 38 are transferred in the same manner via traversing guide 39 onto two spools 40 and 41, respectively.
  • FIG. 7 differs from the one shown in FIG. 2 only in that the thread path 42 is placed as far towards the inside as possible, so that the plane formed by the thread triangle clears the outermost limits or contours of the free ends of the draw rolls and so that no contact during operation and no influence by the air currents created by the rotation draw rolls occurs.
  • the winding device 43 then can be placed so far to the inside that the takeup bobbin exceeds or protrudes past the width of the machine determined by the outermost top draw roll 45 by an insignificant amount.
  • FIG. 8 two separate and parallel threads are drawn and relaxed or set respectively by means of each of three groups of rolls.
  • This arrangement represents a drawing system simplified by omitting the predrawing zone, which is feasible in processing, e.g., fine denier threads.
  • One thread 46 is transferred directly by roll 47 to a thread traversing guide 48 moving substantially parallel to the draw roll and arranged just below the rows of rolls, and is partially placed on a friction drum 49 and is taken up by a bobbin 50.
  • the other thread 51 is transferred from the same roll 47 to a second threadtraversing guide driven by the same drum 52 and is placed on a friction drum 54 symmetrically arranged with respect to the first one 49 and is taken up by a bobbin 55.
  • the device formed by the components 48 through 55 is hereinafter referred to as a winding arrangement.
  • the threads 57 and 58 originating from the next spinning cabinet similarly are transferred by roll 59 to a winding arrangement 60 arranged at a lower level.
  • the thread triangle formed by thread 57 can be placed as close towards bobbin 55 as feasible if contact during operation is to be avoided.
  • This arrangement permits accommodation of two bobbins within a small spinning cabinet (fine deniers), the same bobbin size as e.g. shown in FIG. 5 being maintained.
  • the yarn path 58 again is determined by the distance to the next winding arrangement.
  • the size of the device is influenced not by the bobbin distances between winding arrangements, but rather by the yarn path of the threads transferred by the draw rolls also placed at narrow gauge, where the shape of said yarn paths can be chosen quite unrestrictedly by suitably displacing the tiers of rolls and choosing the height of the thread triangles. Furthermore, the overlapping of the winding arrangements permits compact machine height with, as mentioned before, a narrow spinning cabinet size.
  • FIG. 9 also represents a solution for processing fine denier threads.
  • a row of threads 62 consisting of a plurality of threads, e.g. of 8 threads, running parallel is drawn and relaxed by the superimposed groups of rolls arranged in tiers.
  • One quarter 63 of all threads originating from a spinning cabinet is transferred from the left top roll 64 to the left side of a winding arrangement located as closely below the left row of rolls as possible on the left-hand side, while a second quarter 66 of all threads is transferred to the right side of said winding arrangement 65.
  • each quarter 63 or 66 i.e., in this example one thread each
  • a lower bobbin 67 and an upper bobbin 68 On the right side of the winding arrangement the same operation is effected symmetrically.
  • the remaining two quarters of all threads e.g. a total of four threads, are transferred to the right top roll 69 and from there are guided to a winding arrangement 70 located at a lower level, said winding arrangement 70 being of the same type as the winding device 65 described before, but arranged at a lower level.
  • a method of drawing and winding an endless filament thread taken from a spinning cabinet comprising the steps of transferring the thread by the lowest roll of a plurality of vertically superimposed rolls, diverting the thread upwardly, drawing the thread by means of the remainder of said plurality of rolls, diverting the thread downwardly from the uppermost roll of said plurality of rolls, and traversing the thread through a path onto a winding bobbin at a distance from said uppermost roll of at least six times the width of said traversal path.
  • a method of drawing and winding an endless filament thread taken from a spinning cabinet comprising the steps of transferring the thread by a lowermost roll of a group of rolls arranged at a lowermost position of a plurality of superimposed groups of rolls, diverting the thread upwardly, drawing the thread by means of at least some of said plurality of superimposed groups of rolls, diverting the thread downwardly from an uppermost roll of an uppermost group of rolls of said plurality of groups of rolls, and traversing the thread through a path onto a winding bobbin at a distance from said uppermost roll of said uppermost group of rolls of at least six times the width of the traversal path.
  • a method of drawing and winding an endless mono or multifilament thread taken from a spinning cabinet comprising the steps of transferring the thread to a first roll of a group of rolls arranged at a lowermost position with regard to a plurality of superimposed groups of rolls, winding the thread thereon in a number of loops, diverting the thread upwardly from said group of lowermost rolls to the next groups of rolls and winding on each a number of loops thereon, drawing the thread by means of at least some of the superimposed groups of rolls, diverting the thread downwardly from the uppermost group of rolls, and traversing the thread through a path onto a takeup spool at a distance from said uppermost group of rolls of at least six times the width of the transversal path.
  • An apparatus for drawing and winding an endless filament thread taken off a spinning cabinet comprising a first pair of substantially horizontal rolls taking up said thread transferred thereto, further pairs of rolls disposed above said first pair and sequentially taking the thread from said first pair of .rolls, each of said further pairs of rolls being displaced axially with respect to the preceding and succeeding pairs of rolls by less than their working width, and said further pairs of rolls being inclined vertically with respect to said first pair of rolls.
  • An apparatus as defined in claim 14, comprising a traversing and winding mechanism disposed substantially parallel to said first pair of rolls and disposed between the rolls of said pair of rolls.
  • An apparatus as defined in claim 14, comprising two tranversing and winding mechanisms arranged side-by-side below said first pair of rolls.
  • An apparatus as defined in claim 14, comprising two traversing mechanisms and two winding mechanisms disposed substantially parallel to said first pair of rolls and in side-byside relationship.
  • An apparatus as defined in claim 14, comprising two winding arrangements, each provided with two traversing guide mechanisms traversing substantially parallel to the axles of said rolls and with corresponding drive rolls and bobbins, said winding arrangements being disposed below said rolls within a distance determined by the width of said spinning cabinet, said winding arrangements being vertically offset with respect to each other.
  • An apparatus for drawing and winding an endless filament thread comprising a plurality of superimposed groups of pairs of rolls including a first pair of rolls taking up said thread transferred thereto and defining a lowermost group of rolls of said plurality of groups of rolls, said first pair of rolls having axes disposed substantially perpendicular to the direction of infeed of the thread, said remaining superimposed groups of pairs of rolls defining further pairs of rolls disposed above said first pair of rolls and sequentially taking the thread from said first pair of rolls, each of said further pairs of rolls being displaced axially with respect to the receding and succeeding pairs of rolls by less than their working width, and said further pairs of rolls being inclined vertically with respect to the horizontal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US827449*A 1968-04-24 1969-04-23 Method of drawing and winding a thread of endless filament and apparatus for implementing same Expired - Lifetime US3604659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH638368A CH497549A (de) 1968-04-24 1968-04-24 Verfahren zum Verstrecken und Aufwinden eines Endlos-Filament-Fadens und Vorrichtung zur Durchführung des Verfahrens

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US3604659A true US3604659A (en) 1971-09-14

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US (1) US3604659A (de)
JP (1) JPS4825004B1 (de)
CH (1) CH497549A (de)
DE (1) DE1907782C3 (de)
FR (1) FR2006791A1 (de)
GB (1) GB1271718A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694871A (en) * 1970-09-08 1972-10-03 Leesona Corp Apparatus for processing strand material
US3996324A (en) * 1973-09-22 1976-12-07 Metallgesellschaft Aktiengesellschaft Process for producing oriented continuous yarns
US4007883A (en) * 1974-12-09 1977-02-15 Rhone-Poulenc-Textile Simultaneous bobbin winding station
US5419022A (en) * 1991-10-15 1995-05-30 Rhone-Poulene Viscosuisse Sa Apparatus for spin-drawing thermoplastic filament yarns
CN103361812A (zh) * 2012-03-28 2013-10-23 日本Tmt机械株式会社 混合长丝制造装置

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH520062A (de) * 1970-12-22 1972-03-15 Rieter Ag Maschf Anordnung von mehreren Aufwindvorrichtungen für aus Spinndüsen über Transportrollen angelieferte Endlosfäden
JPS501511U (de) * 1973-05-09 1975-01-09
JPS5047905U (de) * 1973-08-31 1975-05-12
JPS5162507U (de) * 1974-11-11 1976-05-17
DE3400832A1 (de) * 1984-01-12 1985-07-18 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Galettenanordnung
US4825517A (en) * 1984-11-15 1989-05-02 Phillips Petroleum Company Apparatus for drawing and interlacing
ITMI912375A1 (it) * 1991-09-09 1993-03-09 Filteco Spa Modulo di stiro per la produzione o il trattamento di fibre artificiai
DE4418374A1 (de) * 1994-05-26 1995-11-30 Zinser Textilmaschinen Gmbh Maschine zum Bearbeiten synthetischer Fäden
ATE191019T1 (de) * 1995-08-24 2000-04-15 Rhodia Filtec Ag Verfahren zur herstellung eines hochfesten, hochschrumpfenden polyamid-66-filamentgarns
CN103243402B (zh) * 2013-05-03 2015-08-05 北京中丽制机工程技术有限公司 一种模块化支架和长丝牵伸卷绕装置
CN104233482B (zh) * 2013-06-18 2018-02-06 日本Tmt机械株式会社 纺丝拉伸装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2260251A (en) * 1935-09-20 1941-10-21 Ind Rayon Corp Apparatus for processing thread or the like
US2284489A (en) * 1942-05-26 Apparatus for the manufacture of
US2323879A (en) * 1939-05-26 1943-07-06 Ind Rayon Corp Apparatus for handling thread or the like
US2460261A (en) * 1944-07-24 1949-01-25 Ind Rayon Corp Apparatus for the fluid treatment of thread or the like
US2558731A (en) * 1947-09-04 1951-07-03 American Cyanamid Co Method of producing synthetic fibers from polymers and copolymers of acrylonitrile
US2930103A (en) * 1954-08-24 1960-03-29 Ind Rayon Corp Tow stretching apparatus
US2962793A (en) * 1956-11-19 1960-12-06 North American Rayon Corp Yarn stretching device
US3069745A (en) * 1958-03-12 1962-12-25 Barmag Barmer Maschf Stretch-spooling machines

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2284489A (en) * 1942-05-26 Apparatus for the manufacture of
US2260251A (en) * 1935-09-20 1941-10-21 Ind Rayon Corp Apparatus for processing thread or the like
US2323879A (en) * 1939-05-26 1943-07-06 Ind Rayon Corp Apparatus for handling thread or the like
US2460261A (en) * 1944-07-24 1949-01-25 Ind Rayon Corp Apparatus for the fluid treatment of thread or the like
US2558731A (en) * 1947-09-04 1951-07-03 American Cyanamid Co Method of producing synthetic fibers from polymers and copolymers of acrylonitrile
US2930103A (en) * 1954-08-24 1960-03-29 Ind Rayon Corp Tow stretching apparatus
US2962793A (en) * 1956-11-19 1960-12-06 North American Rayon Corp Yarn stretching device
US3069745A (en) * 1958-03-12 1962-12-25 Barmag Barmer Maschf Stretch-spooling machines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694871A (en) * 1970-09-08 1972-10-03 Leesona Corp Apparatus for processing strand material
US3996324A (en) * 1973-09-22 1976-12-07 Metallgesellschaft Aktiengesellschaft Process for producing oriented continuous yarns
US4007883A (en) * 1974-12-09 1977-02-15 Rhone-Poulenc-Textile Simultaneous bobbin winding station
US5419022A (en) * 1991-10-15 1995-05-30 Rhone-Poulene Viscosuisse Sa Apparatus for spin-drawing thermoplastic filament yarns
CN103361812A (zh) * 2012-03-28 2013-10-23 日本Tmt机械株式会社 混合长丝制造装置
CN103361812B (zh) * 2012-03-28 2016-08-03 日本Tmt机械株式会社 混合长丝制造装置

Also Published As

Publication number Publication date
DE1907782A1 (de) 1969-11-20
JPS4825004B1 (de) 1973-07-25
GB1271718A (en) 1972-04-26
DE1907782C3 (de) 1981-01-29
FR2006791A1 (de) 1970-01-02
DE1907782B2 (de) 1976-01-08
CH497549A (de) 1970-10-15

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