EP0004781A1 - Verfahren und Vorrichtung zum konischen Aufspulen eines mit konstanter Geschwindigkeit gelieferten Fadens - Google Patents

Verfahren und Vorrichtung zum konischen Aufspulen eines mit konstanter Geschwindigkeit gelieferten Fadens Download PDF

Info

Publication number
EP0004781A1
EP0004781A1 EP79300561A EP79300561A EP0004781A1 EP 0004781 A1 EP0004781 A1 EP 0004781A1 EP 79300561 A EP79300561 A EP 79300561A EP 79300561 A EP79300561 A EP 79300561A EP 0004781 A1 EP0004781 A1 EP 0004781A1
Authority
EP
European Patent Office
Prior art keywords
yarn
cone
speed
chest
constant speed
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.)
Withdrawn
Application number
EP79300561A
Other languages
English (en)
French (fr)
Inventor
Ralph Carl Wirsig
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.)
DuPont Canada Inc
Original Assignee
DuPont Canada Inc
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
Application filed by DuPont Canada Inc filed Critical DuPont Canada Inc
Publication of EP0004781A1 publication Critical patent/EP0004781A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • This invention relates to cone winding of yarns, especially bulked yarns, from a substantially constant speed yarn source e.g. from a false twist texturing device or an air jet texturing device.
  • Bulked yarns i.e. yarns which contain filaments which have been crimped or looped by conventional texturing processes, e.g. by false twist texturing, stuffer box crimp texturing or air jet texturing, may be made from synthetic linear polymers e.g. nylon, polyethylene terephthalate or polypropylene.
  • Patent 4 019 691 issued April 26, 1977, disclosed a method in which yarn is fed at a constant speed from a work station and is stored temporarily in a transit receptacle comprising an upper yarn holding chamber and a lower suction chamber attached to a source of vacuum. From the transit receptacle the yarn is wound onto a cone at a variable, controlled speed by a drive element which contacts the cone at a point. A momentary degree of filling of the yarn holding chamber is measured and the speed of winding is controlled by displacing the cone to change the position of its point of contact with the driving element in response to the measured degree of filling of yarn in the holding chamber to maintain a substantially constant degree of filling therein.
  • This method has the disadvantage of requiring a considerable consumption of energy to maintain continuously a vacuum in the suction chamber of the transit receptacle.
  • yarn from a substantially constant speed yarn source may be wound up on a cone winding device by taking the yarn from the constant speed source; storing the yarn temporarily on a yarn storage device having a yarn storage drum which is adapted to have the yarn wound tangentially thereon and to have the yarn removed axially therefrom; and feeding the yarn from the yarn storage device to the cone winding device.
  • the present invention provides a method for winding yarn supplied from a substantially constant speed source onto a cone, in which the yarn is fed from the substantially constant speed source to a yarn storage device, and is wound onto the cone from the yarn storage device, the amount of yarn stored on the yarn storage device being measured and the winding speed of the cone being varied in accordance with the said amount or yarn stored so as to keep the said amount of yarn stored between a predetermined minimum and a predetermined maximum, and the cone being rotated by friction contact with a driven contact drive roller such that the maximum tangential speed of rotation by the cone results in an average speed of take-up of yarn by the cone which is greater than the speed of take-up of yarn by the yarn storage device, and such that minimum tangential speed of rotation by the cone results in an average speed of take-up yarn by the cone which is less than the speed of take-up of yarn by the yarn storage device, characterised in that the yarn storage device is a yarn storage drum rotating at a constant speed and being adapted to have yarn wound tangentially thereon in the form
  • the contact drive roller is driven by an electric motor.
  • the step of varying the winding speed of the cone may then comprise altering the characteristics of the electric supply to the motor, as for example alternately shutting off and turning on current to the motor driving the contact drive roller, or alternatively alternately reducing and returning to normal the frequency of current to the motor driving the contact drive roller.
  • the step of varying the winding speed of the cone comprises moving the surface of the cone slightly away from and back to the surface of the contact drive roller.
  • the step of feeding the yarn at a substantially constant speed to the yarn storage device comprises the yarn being drawn from the constant speed source by the yarn storage device.
  • the substantially constant speed source from which the yarn is supplied is a friction false twist texturing device.
  • the substantially constant speed source from which the yarn is supplied is an air jet texturing device.
  • the air jet texturing device may comprise an air jet mounted midway up an air jet texturing chest, which has a pool of water in its base and an air vent near its top, the yarn being led under the water before it is led up the chest and through the air jet.
  • the present invention also provides apparatus for winding yarns being supplied from a substantially constant speed source onto a cone in which there are feed means for feeding the yarn from the substantially constant speed source, means for operating the feed means at a substantially constant speed, a yarn storage device, a cone on which to wind the yarn, a surface contact drive roller for rotating the cone, a driving means for rotating the drive roller, a reciprocating transverse-means adopted to traverse the yarn to and fro along the length of the cone as the yarn is wound thereon, and means for detecting the amount of yarn stored on the yarn storage device, co-operating with means for varying the speed of rotation of the cone such that the said amount of yarn stored varies between a predetermined maximum and a predetermined minimum, characterised in that the yarn storage device is a rotatably mounted yarn storage drum, there being driving means for rotating the yarn storage drum at a constant speed and a retarding ring encircling the yarn storage drum, the yarn storage drum being adapted to have yarn wound tangentially thereon to form wraps of yarn on
  • the means for feeding the yarn from the substantially constant speed source and the means for rotating the feed means at-substantially constant speed comprise the yarn storage drum and its driving means respectively.
  • the means for detecting the amount of yarn on the storage drum comprises a tilting disc which encircles the storage drum, spaced apart from the retarding ring, and which is spring biased towards a skew position on the storage drum to advance the yarn wraps towards the retarding ring, the angle formed between the tilting disc and a plane perpendicular to the axis of the drum varying inversely with the amount of yarn on the storage drum.
  • the driving means for rotating the drive roller comprises an electric motor.
  • the means for varying the speed of rotation of the cone may then comprise means for altering the characteristics of the electric supply to the motor, as for example means for alternately shutting off and turning on current to the motor for rotating the drive roller, or alternatively means for alternately reducing and returning to normal the frequency of current to the motor for rotating the drive roller.
  • the means for varying the speed of rotation of the cone comprises means to move the cone slightly away from and back to the surface of the contact drive roller, the drive roller being rotated at a constant surface speed adapted to drive the cone at a mean surface speed that is slightly greater than the surface speed of the yarn storage drum.
  • mean surface speed means the surface speed of the cone at one end of the yarn traverse stroke plus the surface speed of the cone at the other end of the yarn traverse stroke all divided by two.
  • the substantially constant speed source from which the yarn is supplied is a false twist texturing device.
  • the substantially constant speed source from which the yarn is supplied is an air jet texturing device.
  • the air jet texturing device may comprise an air jet mounted partway up a substantially vertical air jet texturing chest, the chest comprising a chest cover, a back plate and a water pan, the chest cover being open at its bottom, closed at its top and open at its back to form two vertical back edges therein, the back edges being slideably mounted in the back plate directly over the water pan such that the chest cover is adapted to be moved from an up or open position to a closed or operating position in which the open bottom of the chest cover rests in the water pan, an overflow drain in the water pan, a water inlet through the back plate above the water pan, an air inlet connected through the back plate to the air jet, an air vent through the back plate near the top of the chest cover, yarn inlet and outlet slots through the water pan and the chest cover above the overflow drain in the water pan, and guide means to conduct the yarn from the inlet slot to a point in the pan below the
  • Undrawn or partially drawn multifilament yarn 10 is pulled from a supply package 11 over a yarn guide 12 by feed roll assembly 13, comprising a feed roll 14 and a cot roll 15. From the feed roll assembly 13 the yarn passes to a false twist texturing and drawing stage comprising a heater plate 16, a friction false twist texturing device 17 and a draw roll assembly 18 comprising a draw roll 19 and a separator roll 20. From the draw roll assembly 18, the false twist textured and drawn yarn i.e. bulked yarn passes over a yarn guide 21 to a yarn storage device 22 which comprises a yarn storage drum 23 which is rotated at constant speed by a driving means (not shown).
  • the yarn is wound tangentially on storage drum 23 to form wraps of yarn thereon.
  • a tilting disc 24, which encircles storage drum 23, and which is spring biased towards a skew position thereon tends to advance the yarn wraps along the storage drum 23.
  • An increase in the amount of yarn wraps on storage drum 23 straightens the position of tilting disc 24 (against the spring) such that the angle formed between the tilting disc 24 and a plane perpendicular to the axis of storage drum 23 varies inversely with the amount of yarn wraps on storage drum 23.
  • Yarn is withdrawn axially from storage drum 23 under a retarding ring 25, which provides tension in the yarn.
  • the yarn passes through a yarn guide 26, around an eccentrically mounted rotatable disc 27 and is wound on cone package 28 which is driven by a contact drive roller 29.
  • the contact drive roller 29 has a conical surface with a taper angle substantially the same as that of the cone on which cone package.28 is formed.
  • The-eccentrically mounted rotatable disc 27 is positioned on a reciprocating traverse means (not shown) which is adapted to traverse the yarn to and fro along the length of the cone package 28 as the yarn is wound thereon.
  • the reciprocating traverse means has a stroke length which decreases as the package 28 builds to form a tapered package. Such a reciprocating traverse means is described in United States Patent No.4 085 903.
  • the eccentrically mounted rotatable disc 27 imparts a vibratory motion and a sinusoidal pattern to the yarn being wound on the cone package 28 and thus improves the take-off characteristics of the yarn from the cone package 28. It will be appreciated that a reciprocating traverse means other than that described in the aforementioned Patent may be used and that it is not necessary to include the eccentrically mounted rotatable disc 27.
  • Cone package 28 is supported by a support frame 30 which is rotatable about its shaft.
  • Support frame 30 is spring loaded to hold cone package 28 against contact drive roller 29 with substantially constant force over the full range of package formation.
  • the support frame 30 is adapted to be periodically rotated in a direction opposing the spring by an air cylinder 31, a magnetic clutch system 32 and a sprocket chain system 33.
  • Air cylinder 31 is of a spring return, single acting type and has an air cylinder shaft 34. The travel of air cylinder shaft 34 is limited by an adjustable mechanical stop (not shown).
  • Magnetic clutch system 32 comprises magnetic clutch upper part 35 which is rotatably mounted on clutch shaft 36 and lower magnetic clutch part 37 which is rigidly connected to clutch shaft 36. Arm 38 is rigidly connected to magnetic clutch upper part 35.
  • Air cylinder shaft 34 is connected to arm 38, one sprocket of sprocket chain system 33 is rigidly connected to clutch shaft 36 and the other sprocket is rigidly connected to the shaft of support frame 30.
  • Air cylinder 31 is connected to an air supply through a solenoid switch 39, which is connected electrically to a microswitch (not shown) inside the storage drum 23.
  • the microswitch is also connected electrically to the magnetic clutch system 32 and mechanically to tilting disc 24.
  • the contact drive roller 29 is set to operate at a speed such that the average wind-up speed on cone package 28 (i.e. the mean surface speed of cone package 28) is slightly greater than the surface speed of yarn storage drum 23.
  • the amount of yarn wraps present on storage drum 23 gradually reduces and the angle formed between the tilting disc 24 and a plane perpendicular to the axis of the storage drum 23 increases.
  • the microswitch trips on. With the microswitch on: (1) an electrical signal is immediately sent to lock magnetic clutch upper part 35 to magnetic clutch lower part 37; and (2) after a time delay (induced electronically by means not shown), an electrical signal is sent to solenoid switch 39 to supply air to air cylinder 31.
  • air cylinder shaft 34 When air is supplied to air cylinder 31, air cylinder shaft 34 is extended by an amount limited by the mechanical stop. This extension of air cylinder shaft 34 by means of arm 38, clutch shaft 36, sprocket chain system 33 and support frame 30 causes cone package 28 to move slightly away from contact drive roller 29 and hence causes the winding speed of cone package 28 to decrease. As the winding speed decreases the amount of wraps present on storage drum 23 increases and the angle formed between the tilting disc 24 and a plane perpendicular to the axis of storage drum 23 decreases. When the angle reaches a predetermined minimum, the microswitch trips off.
  • the electrical signal from the microswitch when in the on position may be interrupted in a pulsating fashion by adding appropriate electronics (not shown) to the electrical circuit.
  • This pulsating electrical signal feature is a means for moderating, and controlling the rate at which the cone package 28 slows down (and thus the rate at which the inventory of yarn on the yarn storage drum 23 increases).
  • the wind up speed of cone package 28 is varied by alternately shutting off and turning on power to the motor driving contact drive roller 29.
  • Such an embodiment is useful with commercial winding machines which have an individual motor for each contact drive roller.
  • the microswitch inside storage drum 23 trips on and off as described above in response to the amount of yarn wraps on storage drum 23.
  • the microswitch trips on an electrical signal is sent to shut off power to the motor driving contact drive roller 29 and when the microswitch trips off a signal is sent to turn on power to the motor.
  • the electrical signal from the microswitch when in the on position may be interrupted in a pulsating fashion as described above to moderate and control the rate at which the cone package 28 slows down.
  • an electrical signal from the microswitch when in the on position may be used to modify the current to the motor driving the contact drive roller 29 (in such a manner as to drive the motor at a slower speed) instead of to shut the current off completely.
  • Undrawn or partially drawn multifilament yarn 60 is pulled from a supply package 61 over a yarn guide 62 by feed roll assembly 63, comprising a feed roll 64 and a cot roll 65. From the feed roll assembly 63 the yarn passes to a draw roll assembly 66, comprising a draw roll 67 and a separator roll 68.
  • Draw roll 67 may be a stepped roll as shown with a large diameter surface and a somewhat smaller diameter surface or it may be a "non-stepped" roll with a constant diameter over its entire length.
  • the yarn from feed roll assembly 63 passes around the large diameter surface of draw roll 67, over a heater plate 69, around a change-of-direction roll 70 and back to the smaller diameter surface of draw roll 67.
  • Use of the stepped draw roll 67 in this manner as compared with a non-stepped draw roll causes greater relaxation of the yarn 60 to take place as it passes over heater plate 69.
  • the yarn 60 passes to an air jet texturing chest 71.
  • Air jet texturing chest 71 comprises a chest cover 100, a back plate 101, and a water pan 102.
  • An air jet 103 (see Fig. 3) is positioned mid-way up air jet texturing chest 71.
  • Chest cover 100 is closed at its top, open at its bottom and open at its back to form two vertical back edges 104 therein. The back edges 104 are slideably mounted in back plate 101 in two slots 105.
  • Chest cover 100 is positioned directly over water pan 102 such that the chest cover is adapted to be moved from an up or open position to a closed or operating position in which the open bottom of the chest cover rests in the water pan 102.
  • a water overflow drain 106 is provided in water pan 102.
  • a water inlet 107 above the water pan Through the back plate 101 are provided: (1) a water inlet 107 above the water pan; (2) an air inlet 108 connected to air jet 103; and (3) an air vent 109 near the top of the chest cover 100.
  • Yarn inlet slots 110 and 111 and yarn outlet slots 112 and 113 are provided through the water pan 102 and chest cover 100, respectively.
  • the yarn 60 enters the air jet texturing chest 71 through slots 110 and 111 and is conducted under the surface of the water in the water pan 102 by an adjustable guide 114.
  • the yarn then passes up the chest to air jet 103, through air jet 103, down the chest to a yarn guide 115 which conducts it out of the air jet texturing chest 71 through outlet slots 112 and 113.
  • Slots 110 and 112 also serve as yarn guides.
  • the yarn 60 leaving air jet texturing chest 71 passes over a yarn guide 72 to a yarn storage device 73, which comprises a yarn storage drum 74 which is rotated at a constant speed by a driving means (not shown).
  • the yarn 60 is wound tangentially on storage drum 74 to form wraps of yarn thereon.
  • the storage drum 74 operates at a surface speed in the range of from about 12 percent to about 30 percent, and preferably in the range of from about 18 percent to about 25 percent, slower than the surface speed of the smaller diameter surface of draw roll 67 in order to allow the yarn 60 to become fully textured in the air jet texturing chest 71.
  • a tilting disc 75 which encircles storage drum 74, and which is spring biased towards a skew position thereon tends to advance the yarn wraps along the storage drum 74.
  • An increase in the amount of yarn wraps on storage drum 74 straightens the position of tilting disc 75 (against the spring) such that the angle formed between the tilting disc 75 and a plane perpendicular to the axis of storage drum 74 varies inversely with the amount of yarn wraps on storage drum 74.
  • Yarn is withdrawn axially from storage drum 74 under a retarding ring 76, which provides tension in the yarn.
  • the yarn 60 passes through a yarn guide 77 around an eccentrically mounted rotatable disc 78 and is wound on cone package 79 which is driven by a contact drive roller 80.
  • the contact drive roller 80 has a conical surface with a taper angle substantially the same as that of the cone on which cone package 79 is formed.
  • the eccentrically mounted rotatable disc 78 is positioned on a reciprocating traverse means (not shown) which is adapted to traverse the yarn to and fro along the length of the cone package 79 as the yarn is wound thereon.
  • the reciprocating traverse means has a stroke length which decreases as the package 79 builds to form a tapered package.
  • Such a reciprocating traverse means is described in aforementioned United States Patent No.4 085 903.
  • the eccentrically mounted rotatable disc 78 imparts a vibratory motion and a sinusoidal pattern to the yarn being wound on the cone package 79 and thus improves the take-off characteristics of the yarn from the cone package 79. It will be appreciated that a reciprocating traverse means other than that described in the aforementioned Patent may be used and that it is not necessary to include the eccentrically mounted rotatable disc 78.
  • Cone package 79 is supported by a support frame 81 which is rotatable about its shaft.
  • Support frame 81 is spring loaded to hold cone package 79 against contact drive roller 80 with substantially constant force over the full range of package formation.
  • the support frame 81 is adapted to be periodically rotated in a direction opposing the spring by an air cylinder 82, a magnetic clutch system 83 and a sprocket and chain system 84.
  • Air cylinder 82 is a spring return, single acting type having an air cylinder shaft 85. The travel of air cylinder shaft 85 is limited by an adjustable mechanical stop (not shown).
  • Magnetic clutch system 83 comprises magnetic clutch upper part 86 which is rotatably mounted on clutch shaft 87 and lower magnetic clutch part 88 which is rigidly connected to clutch shaft 87.
  • Arm 89 is rigidly connected to magnetic clutch upper part 86.
  • Air cylinder shaft 85 is connected to arm 89, one sprocket of sprocket chain system 84 is rigidly connected to clutch shaft 87 and the other sprocket is rigidly connected to the shaft of support frame 81.
  • Air cylinder 82 is connected to an air supply through a solenoid switch 90, which is connected electrically to a microswitch (not shown) inside the storage drum 74. The microswitch is also connected electrically to the magnetic clutch system 83 and mechanically to tilting disc 75.
  • the contact drive roller 80 is set to operate at a speed such that the average wind-up speed on cone package 79 (i.e. the mean surface speed of cone package 79) is slightly greater than the surface speed of yarn storage drum 74.
  • the amount of yarn wraps present on storage drum 74 gradually reduces and the angle formed between the tilting disc 75 and a plane perpendicular to the axis of the storage drum 74 increases. When the angle reaches a predetermined maximum the microswitch trips on.
  • an electrical signal is immediately sent to lock magnetic clutch upper part 86 to magnetic clutch lower part 88; and (2) after a time delay (induced electronically by means not shown), an electrical signal is sent to solenoid switch 90 to supply air to air cylinder 82.
  • air cylinder shaft 85 is extended by an amount limited by the mechanical stop. This extension of air cylinder shaft 85 by means of arm 89, clutch shaft 87, sprocket chain system 84 and support frame 81 causes cone package 79 to move slightly away from contact drive roller 80 and hence causes the winding speed of cone package 79 to decrease.
  • the microswitch trips off. With the microswitch off: (1) magnetic clutch upper part 86 is disengaged from magnetic clutch lower part 88 thus permitting the cone package 79 to return to contact with contact drive roller 80; and (2) air cylinder shaft 85 returns to a non-extended position.
  • the above sequence then repeats to give control to the process.
  • the electrical signal may pulsate, as described above with reference to the embodiment of Fig. 1.
  • a 283 dtex - 68 filament polyester feed yarn was textured and drawn in a false twist texturing and drawing stage and wound up continuously on a cone package.
  • the feed yarn had been spun from molten polyethylene terephthalate and wound up at a speed of 3110 metres/min and hence was partially oriented (drawn), having a break elongation of about 140 percent.
  • the apparatus used to draw, texture and wind the yarn was similar to that shown in Fig. 1 and described hereinabove.
  • the yarn storage device 22 was similar to that described in U.S. Patent 3 648 939 (for feeding yarn to a knitting machine) and available from AB IRO, Box 54, 52301 Ulricehamn, Sweden as Model No.8006.
  • the storage device 22 was modified as follows to permit it to feed yarn to the cone wind up facilities: (1) the eyelet yarn guides were replaced by pigtail guides to permit string-up of a moving thread line; (2) the inlet yarn guide 21 was moved closer to the surface of the storage drum 23 to prevent retarding ring 25 from falling off the storage drum 23 during string-up; (3) the outlet yarn guide 26 was modified to make it swingable, at its mounting, from an axial position to a position outside the surface of storage drum 23 to facilitate yarn string-up and to permit initial wraps, applied manually with a yarn pick, or automatically, if the tension of the yarn downstream of the storage device 22 is reduced, to be retained on the storage drum 23 against the relatively high downstream yarn tension provided by the yarn string-up gun; (4) the electric motor drive for storage drum 23 was replaced by a pulley driven by an external variable speed source; and (5) the on-off microswitch positioned at the mounting of tilting disc 24 which was originally adapted to shut off power to the motor driving storage drum 23 when the angle formed between the tilting disc 24
  • the feed rate of the feed yarn from feed roll assembly 13 was 201 metres/min.
  • Heater plate 16 had a length of 101 cm and was operated at a temperature of 200°C.
  • False twist texturing device 17 was operated at a speed of 18000r/ min.
  • Draw roll assembly 18 was operated at a speed of 350 metres/min to give a draw ratio of 1.74.
  • Yarn storage drum 23 was operated at a speed of 335 metres/min so that the overfeed from draw roll assembly 18 to yarn storage device 22 was about 4.3 percent.
  • Contact drive roller 29 was operated at a surface speed about 1 percent higher than that required to maintain a constant average number of yarn wraps on yarn storage drum 23, when averaged over a period which is long compared with the time taken for disc 27 to make one traverse.
  • the yarn was wound up on a paper cone which had the following dimensions: top diameter 4.45 cm; bottom diameter 6.19 cm; height 34.0 cm; and a cone taper of about 16°.
  • the hardness of the package produced was quite uniform ranging from a Shore Type T-2 hardness of 42 at the top of the cone to 39 at the bottom of the cone.
  • a 283 dtex - 68 filament polyester feed yarn was textured and drawn in a false twist texturing and drawing stage and wound up continuously on a cone package.
  • the feed yarn had been spun from molten polyethylene terephthalate and wound up at a speed of 3110 metres/min and hence was partially oriented (drawn), having a break elongation of about 140 percent.
  • the apparatus used to draw, texture and wind the yarn was similar to that shown in Fig. 1 and described hereinabove except that draw roll assembly 18 was positioned in front of heater plate 16 and friction false twist texturing device 17, such that The yarn was first drawn and then false twist textured, the textured yarn being fed directly from friction false twist texturing device 17, over a yarn guide to yarn storage device 22.
  • the yarn storage device 22 was the same as that used in Example I and had the same modifications made thereto.
  • the feed rate of the feed yarn from feed roll assembly 13 was 188 metres/min.
  • Draw roll assembly 18 was operated at a speed of 338 metres/min to give a draw ratio of 1.8.
  • Heater plate 16 had a length of 61 cm and was operated at a temperature of 220°C.
  • False twist texturing device 17 was operated at a speed of 18000 r/min.
  • Yarn storage drum 23 was operated at a speed of 340 metres/min.
  • Contact drive roller 29 was operated at a surface speed about 1 percent higher than that required to maintain a constant average number of yarn wraps on yarn storage drum 23, when averaged over a period which is long compared with the time taken for disc 27 to make one traverse.
  • the yarn was wound up on a cone which had the following dimensions: base diameter 7.15 cm; cone length 29.2 cm; and cone taper 31 ⁇ 2°.
  • the package produced was a double taper conical package, which had a uniform package hardness i.e. the Shore Type T-2 hardness was 50 + 2 throughout the length of the package.
  • a 283 dtex - 68 filament polyester feed yarn was drawn in a drawing stage, air jet textured in an air jet texturing stage and wound up on a cone package in a continuous process.
  • the feed yarn had been spun from molten polyethylene terephthalate and wound up at a speed of 3110 metres/min and hence was partially oriented (drawn) having a break elongation of about 140 percent.
  • the apparatus used to draw, air jet texture and wind the yarn was similar to that shown in Fig. 2, Fig. 3 and Fig. 4 and described hereinabove.
  • the yarn storage device 73 was the same as yarn storage device 22 (Fig. 1) employed in Example 1 and had the same modifications made thereto.
  • the feed rate of the feed yarn 60 from feed roll assembly 63 was 240 metres/min.
  • Draw roll assembly 66 was operated with the large diameter surface of draw roll 67 at a speed of 408 metres/min to give a draw ratio of 1.70.
  • the smaller diameter surface of draw roll 67 was not used i.e. the yarn passed around change-of-direction roll 70 and back to the large diameter surface of draw roll 67.
  • Heater plate 69 had a length of 61 cm and was operated at a temperature of 200 C.
  • Air jet 103 was operated with an air pressure of 1200 kPa.
  • Yarn storage drum 74 was operated at a speed of 336 metres/min so that the overfeed to the air jet 103 was 21.4 percent.
  • Contact drive roller 80 was operated at a surface speed about 1 percent higher than that required to maintain a constant average number of yarn wraps on yarn storage drum 74, when averaged over a period which is long compared with the time taken for disc 78 to make one traverse.
  • the windup tension before eccentrically mounted rotatable disc 78 was approximately 21 g.
  • the yarn was wound up on a cone which had the following dimensions: base diameter 7.15 cm; cone length 29.2 cm; and cone taper 3b°.
  • the package produced was a double taper conical package with a base diameter of 14 cm.
  • the hardness of the package was very uniform i.e. the Shore Type T-2 hardness was 28 + 1 throughout the length of the package.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
EP79300561A 1978-04-06 1979-04-05 Verfahren und Vorrichtung zum konischen Aufspulen eines mit konstanter Geschwindigkeit gelieferten Fadens Withdrawn EP0004781A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1355678 1978-04-06
GB1355678 1978-04-06

Publications (1)

Publication Number Publication Date
EP0004781A1 true EP0004781A1 (de) 1979-10-17

Family

ID=10025084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79300561A Withdrawn EP0004781A1 (de) 1978-04-06 1979-04-05 Verfahren und Vorrichtung zum konischen Aufspulen eines mit konstanter Geschwindigkeit gelieferten Fadens

Country Status (2)

Country Link
EP (1) EP0004781A1 (de)
JP (1) JPS5516888A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009578A3 (fr) * 1995-09-18 1997-05-06 Usines Textiles Ernaelsteen Procede et dispositif de traitement et d'enroulement de fil.
EP0845550A1 (de) * 1996-12-02 1998-06-03 B a r m a g AG Verfahren und Vorrichtung zum Spinnen und Aufwickeln von Fäden
EP1598295A1 (de) * 2004-05-17 2005-11-23 RICAMBI TESSILI RI.TE - SpA Vorrichtung und Verfahren zur Bildung einer Fadenreverve in Textilmaschinen wie Spinnmaschinen, Texturierungmaschinen, Merzerisierungsmaschinen oder dergleichen
WO2006058582A1 (de) * 2004-12-01 2006-06-08 Saurer Gmbh & Co. Kg Arbeitsstelle einer spulmaschine
EP2107025A3 (de) * 2008-03-31 2011-05-04 Murata Machinery, Ltd. Garnwickelvorrichtung und automatischer Wickler mit einer Garnwickelvorrichtung
CN102574657A (zh) * 2009-09-30 2012-07-11 村田机械株式会社 纱线卷绕装置
EP2511214A1 (de) * 2008-12-24 2012-10-17 Murata Machinery, Ltd. Garnwickelvorrichtung und automatischer Wickler
EP2808283A1 (de) * 2013-05-31 2014-12-03 Murata Machinery, Ltd. Garnwicklungsmaschine
CN111485303A (zh) * 2019-01-28 2020-08-04 塞维欧纺织机械股份公司 纺纱设备以及对其中的纱线聚积系统进行连续调整的方法
CN111699144A (zh) * 2018-02-06 2020-09-22 Btsr国际股份公司 用于对高度不连续操作的或具有交替运动的纺织机的纱线进给进行优化的方法及改进的纱线进给器系统和设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9340392B2 (en) * 2009-10-30 2016-05-17 Invista North America S.Ar.L. Extended length and higher density packages of bulky yarns and methods of making the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1760600A1 (de) * 1967-10-20 1971-03-18 Rosen Karl I J Verfahren und Vorrichtung zur Fadenkontrolle an Garnzubringern
US3743202A (en) * 1972-06-14 1973-07-03 Enterprise Machine & Dev Speed and tension control for yarn winder
DE2353820A1 (de) * 1972-10-27 1974-05-09 Monsanto Co Garnwirren durch reibungszwirnen
DE2534234A1 (de) * 1974-08-14 1976-02-26 Du Pont Herstellen texturierten polyestergarns
DE2532909A1 (de) * 1975-07-21 1977-02-10 Berliner Maschinenbau Ag Verfahren zum aufwickeln von synthetischen endlosfaeden in lufttexturiermaschinen und vorrichtung zur durchfuehrung des verfahrens
US4019691A (en) * 1975-11-10 1977-04-26 Centralny Osrodek Badawxzorozwojowy Maszyn Wlokienniczych "Centamatex" Method and apparatus for winding yarn onto a cross-and-cone wound bobbin

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1760600A1 (de) * 1967-10-20 1971-03-18 Rosen Karl I J Verfahren und Vorrichtung zur Fadenkontrolle an Garnzubringern
US3743202A (en) * 1972-06-14 1973-07-03 Enterprise Machine & Dev Speed and tension control for yarn winder
DE2353820A1 (de) * 1972-10-27 1974-05-09 Monsanto Co Garnwirren durch reibungszwirnen
DE2534234A1 (de) * 1974-08-14 1976-02-26 Du Pont Herstellen texturierten polyestergarns
DE2532909A1 (de) * 1975-07-21 1977-02-10 Berliner Maschinenbau Ag Verfahren zum aufwickeln von synthetischen endlosfaeden in lufttexturiermaschinen und vorrichtung zur durchfuehrung des verfahrens
US4019691A (en) * 1975-11-10 1977-04-26 Centralny Osrodek Badawxzorozwojowy Maszyn Wlokienniczych "Centamatex" Method and apparatus for winding yarn onto a cross-and-cone wound bobbin

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009578A3 (fr) * 1995-09-18 1997-05-06 Usines Textiles Ernaelsteen Procede et dispositif de traitement et d'enroulement de fil.
EP0845550A1 (de) * 1996-12-02 1998-06-03 B a r m a g AG Verfahren und Vorrichtung zum Spinnen und Aufwickeln von Fäden
US5928579A (en) * 1996-12-02 1999-07-27 Barmag Ag Apparatus and method for spinning and winding multifilament yarns
EP1598295A1 (de) * 2004-05-17 2005-11-23 RICAMBI TESSILI RI.TE - SpA Vorrichtung und Verfahren zur Bildung einer Fadenreverve in Textilmaschinen wie Spinnmaschinen, Texturierungmaschinen, Merzerisierungsmaschinen oder dergleichen
WO2006058582A1 (de) * 2004-12-01 2006-06-08 Saurer Gmbh & Co. Kg Arbeitsstelle einer spulmaschine
EP2107025A3 (de) * 2008-03-31 2011-05-04 Murata Machinery, Ltd. Garnwickelvorrichtung und automatischer Wickler mit einer Garnwickelvorrichtung
CN101549806B (zh) * 2008-03-31 2013-03-13 村田机械株式会社 纱线卷绕装置及备有该纱线卷绕装置的自动络纱机
EP2511214A1 (de) * 2008-12-24 2012-10-17 Murata Machinery, Ltd. Garnwickelvorrichtung und automatischer Wickler
CN101759062B (zh) * 2008-12-24 2013-01-16 村田机械株式会社 纱线卷绕装置及自动络纱机
EP2484621A1 (de) * 2009-09-30 2012-08-08 Murata Machinery, Ltd. Garnwickler
CN102574657A (zh) * 2009-09-30 2012-07-11 村田机械株式会社 纱线卷绕装置
EP2484621A4 (de) * 2009-09-30 2013-06-19 Murata Machinery Ltd Garnwickler
EP2808283A1 (de) * 2013-05-31 2014-12-03 Murata Machinery, Ltd. Garnwicklungsmaschine
CN104210894A (zh) * 2013-05-31 2014-12-17 村田机械株式会社 纱线卷取机
CN111699144A (zh) * 2018-02-06 2020-09-22 Btsr国际股份公司 用于对高度不连续操作的或具有交替运动的纺织机的纱线进给进行优化的方法及改进的纱线进给器系统和设备
CN111699144B (zh) * 2018-02-06 2022-07-22 Btsr国际股份公司 用于将纱线进给至加工机器的方法、系统及补偿器设备
CN111485303A (zh) * 2019-01-28 2020-08-04 塞维欧纺织机械股份公司 纺纱设备以及对其中的纱线聚积系统进行连续调整的方法

Also Published As

Publication number Publication date
JPS5516888A (en) 1980-02-05

Similar Documents

Publication Publication Date Title
EP0004781A1 (de) Verfahren und Vorrichtung zum konischen Aufspulen eines mit konstanter Geschwindigkeit gelieferten Fadens
US3575217A (en) Device for storing weft material in weaving machines
US5343601A (en) Yarn spinning method with high-speed winding
US3902644A (en) Apparatus for the treatment of yarn
EP0691298B1 (de) Verfahren zur automatischen Regelung der Fadenspannung an Aufspulmaschinen
JPH026035Y2 (de)
US3844504A (en) Method and apparatus for handling yarn
US4195788A (en) Apparatus for forming transfer tail windings on a bobbin in an open-end spinning machine
US5046673A (en) Controlled programmable electronic winding
EP0080692B1 (de) Schussfadenspeicher für Düsenwebmaschinen
US3971518A (en) Transfer tail apparatus for use with textile yarn winders
KR19990077813A (ko) 얀 주행 동작이 개선된 얀 공급기
US20070095043A1 (en) Machine for yarn cabling/twisting and continuous setting
US3759455A (en) Filament feeding and storage device
EP0066128A1 (de) Vorrichtung zur Herstellung von Garnkörpern
US3831362A (en) Method and apparatus for producing textured yarn
US6402080B1 (en) Arrangement and method for winding threads onto bobbins with random crosswinding
US3601326A (en) Winding limp flexible material
US3843069A (en) Yarn feeding and storage device for textile producing machine
US4309801A (en) Texturizing process
EP0005582A1 (de) Offenend gesponnenes, geflammtes Garn; Verfahren und Vorrichtung zu seiner Herstellung
US4335588A (en) Yarn process and apparatus
US3813864A (en) Method for stringing up a rotating package holder
US4316311A (en) Bounce crimping apparatus
US4144703A (en) Open end spun slub yarn

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB IT

17P Request for examination filed
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn
RIN1 Information on inventor provided before grant (corrected)

Inventor name: WIRSIG, RALPH CARL