US3620464A - Traversing mechanism in use for fast yarn winding - Google Patents

Traversing mechanism in use for fast yarn winding Download PDF

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Publication number
US3620464A
US3620464A US829032A US3620464DA US3620464A US 3620464 A US3620464 A US 3620464A US 829032 A US829032 A US 829032A US 3620464D A US3620464D A US 3620464DA US 3620464 A US3620464 A US 3620464A
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United States
Prior art keywords
yarn
belt
runs
traversing
traversing mechanism
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.)
Expired - Lifetime
Application number
US829032A
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English (en)
Inventor
Shizuma Ueda
Shigenobu Fujimoto
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Nabtesco Corp
Original Assignee
Teijin Seiki Co Ltd
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Filing date
Publication date
Application filed by Teijin Seiki Co Ltd filed Critical Teijin Seiki Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2821—Traversing devices driven by belts or chains
    • B65H54/2824—Traversing devices driven by belts or chains with at least two traversing guides travelling in opposite directions
    • 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 a traversing mechanism [54] ggaxw g gfi IN USE FOR FAST for fast yarn winding in packages or the like.
  • a mechanism 4 Cl 12 D H for imparting traversing motions to yarn with a plurality of adrawmg jacent endless belts passing around two or more pulleys and running opposite to each other in the same plane this invention is in carrying out the delivery of fibers by thread guides mounted on said belts and with guide disks disposed between the belt adjacent to each other thereby to reverse the yam-advancing direction.
  • the instant invention relates to a traversing mechanism for yarn winding, e.g., a polyester continuous filament yarn onto packages or any other wound storage arrangement of yarn at high speeds.
  • the traversing mechanism in a winding machine operates to guide yarn on a package in a path of appropriate width and plays an important role in determining the building of a package.
  • winding speeds used in the manufacture of synthetic yarns have recently been increased to increase production, etc.
  • winding speeds for yarn are preferably 2,500 to 6,000 meters per minute, and for such high speeds it is desired that traversing speeds be from 250 to L800 m./min.
  • the instant invention relates to improvements in this belt-type traversing mechanism. Prior to the ex planation of the instant invention, the conventional belt-type mechanism will be described.
  • the instant invention provides an entirely different yarn shifting device from the prior art, resulting from the search for the causes of such drawbacks (later described). The testing results were exceedingly good.
  • One object of the instant invention is to eliminate conventional defects so as to make possible an extra-high-speed traversing mechanism.
  • Another object of this invention is to manufacture a high-speed traversing mechanism capable of producing packages which have excellent appearance, form, and density. It is a further object of the invention to reduce impact or yarn abrasion to a minimum and to manufacture a good speed traversing mechanism with a high durability.
  • FIG. I is a perspective view, partly cut away of the traversing mechanism of the instant invention.
  • FIG. 2 is a plan view thereof.
  • FIG. 3 is a vertical sectional view on the line 3-3 in FIG. 2.
  • FIG. 4 is a schematic plan view showing the running conditions of the belts.
  • FIG. 5 is a detailed plan view showing in detail the yarnshifting part.
  • FIG. 6 is a schematic view of a conventional traversing apparatus.
  • FIG. 7 is a detailed diagram of the traversing apparatus FIG. 6.
  • FIGS. 8, 9, I0, I] and I2 are plan views showing the steps carried out by the yarn-shifting device of the instant invention.
  • FIG. 6 two differential pulleys 50 and 5] are mounted on the common shaft 52.
  • a second shaft 52' is spaced from the first shaft 52 by a specified distance and has 2 further differential pulleys 50' and 51' thereon.
  • Belts M and N pass around the differential pulleys in the manner shown and move in opposite directions, i.e. in the direction of the arrows.
  • a plurality of thread guides A and B e.g.
  • hooks are secured to each belt on the outside surface thereof adjacent to the other belt, and the distance between the hooks longitudinally along the belts is equal to the traverse length.
  • the yarn is shifted in the manner shown in FIG. 7. If the hook secured to belt M is hook A and the hook on belt N is B, and if belts M and N run in opposite directions to each other hooks A and B carry out the delivery of yarn at a posi tion as shown in FIG. 7. Hook A advances from left to right and engages the front wall, in the hook advancing direction with yarn 1. Hook A is pulled inwards with respect to the reference line C for yarn-traversing motions. Consequently yarn 1 slides along the front of hook A and is separated from the outer end of hook A.
  • hook B which has advanced from the opposite direction engages the front wall with yarn I, being positioned in a position outside hook A, and carries yarn l in the opposite direction.
  • the yarn-traversing motions are made by the repetition of this action ncar the pulleys.
  • pulleys of different size are used, but in similar devices two pulleys of same diameter can be positioned with the shafts arranged eccentrically, or such devices can have a different application of the belts to the pulleys.
  • the rotation of driving motor 1 is transmitted to shaft 4 via pulleys 3 and 7 by means of belt 9.
  • the belts 26 and 31 are toothed or roller-chaintype belts and run in opposite directions.
  • hooks 33 and 35 are mounted on the outside surfaces of both belts.
  • bearings 39 and 44 are disposed on the shafts 4 and 10 between the pulleys thereon.
  • Bearing 39 will be described below.
  • L-shaped lever 38 is mounted on said bearing 39.
  • One arm of lever 38 is in contact with cam 41 being held against cam 41 being held against cam 41 by a spring 42 connected between said one arm and frame member 48. As shown in FIG.
  • the other arm 38 has a guide disk 40 rotatably mounted on the free end thereof. If cam 41 is rotated it moves against lever 38 and the tip of arm 38' moves so that guide disk 40 is displaced. Thus the position of guide disk 40 can be adjusted by movement of cam 41.
  • the same arrangement is provided on main shaft 10, i.e. bearing 44, cam 46, lever 43 and arm 43', and guide disk 45.
  • FIG. 4 schematically shows the running directions of endless belts 26 and 31 which have been shown side by side.
  • the traversing motions are as follows:
  • belt 26 provided with hook 33 advances in the direction of arrow P and belt 31 provided with hook 35 advances in the direction of arrow R.
  • the directions of movement of the belts are opposite to each other.
  • Yarn 37 is given a traversing motion in the direction of arrow R, being pulled by hook 35, during which time yarn 37 is wound in one direction onto bobbin 36.
  • yarn 37 is moved outwardly by the periphery of guide disk 40 and separates from the tip of hook 35.
  • the yarn moved outwardly by the guide disk and separated from hook 35 is picked up by hook 33 which advanced from the opposite direction and given an opposite traversing motion.
  • FIG. 8 shows the posi tions of the parts and the yarn just prior to yarn shifting.
  • Yarn 37 is moving in the direction of the arrow under the action of hook 35 and has not yet reached guide disk 40.
  • the guide disk is secured in a given position (The position of the guide disk is, as mentioned above, adjustable.)
  • FIG. 9 shows the positions where hook 35 has reached the position of disk 40 and yarn 37 has made contact with guide disk 40. Of course, hook 35 is positioned under guide disk 40.
  • FIG. 8 shows the posi tions of the parts and the yarn just prior to yarn shifting.
  • FIG. 10 shows the positions where yarn 37 is about to separate from hook 35. At this time hook 33 is still located slightly ahead of the yarn.
  • FIG. 11 shows the subsequent moment.
  • the yarn that has just left hook 35 is at an angle of a, with respect to the supply source of the yarn and is displaced in a direction opposite to the direction of movement of hook 35 under tension.
  • yarn 37 has returned to the path of the hooks. Hook 33 catches up with the yarn and engages it as shown in FIG. 12.
  • the traversing mechanism is comparatively compact.
  • the mechanism in the instant invention excels any conventional belt-type traversing system in the above-mentioned features but the following salient features should not be missed. That is, the reversal points are determined by guide disks 40 and 45 (FIG. 2). These disks are adjustable, cam 41 which is engaged against one edge of a lever 38 being movable to cause guide disk 40 mounted on the other end of the lever to change its position.
  • Conventional belt-type traversing devices have no such adjusting device. Owing to the lack of such adjusting device various inconveniences and trouble have been experienced. In the instant invention the adjustment of traverse length is possible within a certain range by the operation of cam 41 and during the winding, and periodical alterations of traverse length become possible.
  • the instant invention provides a traversing mechanism comprising belts 26 and 31 running in opposite directions which is compact and which has a combination of rotary pulleys and an interlocking means and which has adjustable guide disks to adjust the reversal points.
  • This mechanism there can be built up a straight edge package of consistent density and better quality, and high speed traversing motions of fibers can be achieved which can not be achieved by conventional belt-type mechanisms.
  • the apparatus makes less noise, and makes possible adjustment of traverse length.
  • a traversing mechanism for a winding machine comprising a pair of side-by-side belt portions extending in substantially parallel belt runs, the belt portion of one run moving in the opposite direction from the belt portion of the other run, yarn-engaging members at spaced intervals on each belt portion corresponding to the traverse distance which the yarn being wound by the traversing mechanism is to be traversed, a pair of freely rotatable disks positioned between said belt runs and projecting slightly beyond the surfaces of the belt portions on which said yarn-engaging members are mounted, said disks being spaced from each other in the direction of the belt runs a distance substantially equal to the traverse distance of the yarn, a pair of pivoted lever means mounted for pivoting movement in the direction transverse to the surface of the belt portions, each of said disks being mounted on one end of a respective pivoted lever means, and cam means engaged with each of said lever means for pivoting each of said lever means and moving the disks in the direction transverse to the surfaces of the belt portions, whereby a yarn under tension running across the belt runs
  • a traversing mechanism as claimed in claim I in which said mechanism further includes pulley means at the ends of each of the belt runs over which the belt portions run, said pul ley means at each end of the belt runs being mounted on a common shaft and spaced from each other along the shaft, said disks being between the pulley means.
  • a traversing mechanism as claimed in claim 2 in which said lever means are L-shaped levers pivoted around said shafts, the disks being mounted on one of the arms of the levers, and the cam means being engaged with the other arms of the levers.
  • a traversing mechanism as claimed in claim 3 in which there are two endless belts, one of the runs of each belt forming the said parallel belt runs, said belts running around said pulley means, one of the pair of pulley means at one end of the belt runs being fixed to the corresponding shaft and the other pulley means being rotatable with respect to said shaft, and the other of the pair of pulley means at the other end of the belt runs being fixed to the corresponding shaft and the one pulley means being rotatable with respect to said shaft, said mechanism further comprising transmission means coupling said shafts for driving them in opposite directions, drive means coupled to one of said shafts, and said L-shaped levers having said other arms extending into the space between said shafts and within said endless belts, whereby the traversing mechanism is made compact.

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  • Spinning Or Twisting Of Yarns (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Winding Filamentary Materials (AREA)
US829032A 1968-06-13 1969-05-29 Traversing mechanism in use for fast yarn winding Expired - Lifetime US3620464A (en)

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JP4081868 1968-06-13

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US3620464A true US3620464A (en) 1971-11-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349160A (en) * 1979-09-25 1982-09-14 The Terrell Machine Company Apparatus and method for winding yarn to form a package
US4767072A (en) * 1986-08-13 1988-08-30 W. Schlafhorst & Co. Endless yarn traversing band for a yarn traversing device in a machine for producing cross-wound bobbins
EP0979792A3 (de) * 1998-08-05 2000-08-23 Murata Kikai Kabushiki Kaisha Fadenchangiervorrichtung vom Riementyp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20030324A1 (it) * 2003-12-22 2005-06-23 Celbo S R L Gruppo guidafilo per distribuire ed avvolgere filati per formare bobine.
ITUD20110064A1 (it) * 2011-04-20 2012-10-21 Feliciano Gabbana Dispositivo per l'avvolgimento di un filo tessile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1239669A (en) * 1916-02-10 1917-09-11 Barber Colman Co Traverse mechanism for winding-machines.
US2238128A (en) * 1938-10-20 1941-04-15 Du Pont Winding apparatus
US3333782A (en) * 1965-04-29 1967-08-01 Leesona Corp Winding machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1239669A (en) * 1916-02-10 1917-09-11 Barber Colman Co Traverse mechanism for winding-machines.
US2238128A (en) * 1938-10-20 1941-04-15 Du Pont Winding apparatus
US3333782A (en) * 1965-04-29 1967-08-01 Leesona Corp Winding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349160A (en) * 1979-09-25 1982-09-14 The Terrell Machine Company Apparatus and method for winding yarn to form a package
US4767072A (en) * 1986-08-13 1988-08-30 W. Schlafhorst & Co. Endless yarn traversing band for a yarn traversing device in a machine for producing cross-wound bobbins
EP0979792A3 (de) * 1998-08-05 2000-08-23 Murata Kikai Kabushiki Kaisha Fadenchangiervorrichtung vom Riementyp

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Publication number Publication date
DE1929945C3 (de) 1973-11-22
DE1929945A1 (de) 1970-01-15

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