EP1973828A1 - Ameliorations sur les cantres ou liees a ceux-ci - Google Patents

Ameliorations sur les cantres ou liees a ceux-ci

Info

Publication number
EP1973828A1
EP1973828A1 EP07705338A EP07705338A EP1973828A1 EP 1973828 A1 EP1973828 A1 EP 1973828A1 EP 07705338 A EP07705338 A EP 07705338A EP 07705338 A EP07705338 A EP 07705338A EP 1973828 A1 EP1973828 A1 EP 1973828A1
Authority
EP
European Patent Office
Prior art keywords
yarn
package
guide means
yarn guide
creel
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Withdrawn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
EP07705338A
Other languages
German (de)
English (en)
Inventor
Robert Pemberton
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.)
Texkimp Ltd
Original Assignee
Texkimp Ltd
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 Texkimp Ltd filed Critical Texkimp Ltd
Publication of EP1973828A1 publication Critical patent/EP1973828A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/18—Methods or apparatus in which packages rotate
    • B65H49/20—Package-supporting devices
    • B65H49/32—Stands or frameworks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/28—Reciprocating or oscillating guides
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H1/00—Creels, i.e. apparatus for supplying a multiplicity of individual threads
    • 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 an improvement in the delivery of yarn from wound yarn packages on a creel.
  • EP 0567497 discloses a creel with horizontally mounted yarn packages, wherein the yarns are drawn horizontally or vertically from the yarn package and delivered via yarn guides, such as rollers and pins, to a further process, such as a fabric producing machine.
  • the yarn package being relatively free to rotate, is unwound by applying tension to the yarn.
  • US 5803134 discloses a braking mechanism for automatically stopping the rotating axis of each yarn package should tension in the yarn reduce due to breakage of the yarn or stoppage of the supplied machine.
  • the braking mechanism comprises two horizontal rollers, the second of which is attached to a pivoted arm.
  • the pivoted arm has attached to it a flexible member that is wrapped around the axle of the yarn package.
  • the pivoted arm is biased to rotate the second roller downwards, which tightens the flexible member applying a braking force to the yarn package axle.
  • tension is applied to the yarn the second roller is urged upwards about the pivot of the connecting arm, such that the tension of the flexible member is relaxed allowing the yarn package to unwind.
  • the individual fibres that make up the yarn are sensitive to shearing forces. Fibre damage is not desirable as, amongst other things, it can cause small lengths of fibre to break off and fur up machines further along the production process. This is a particular problem in ovens, where regular maintenance down time is required to clear the ovens of damaged fibre.
  • the rollers are generally ceramic coated or hard anodized.
  • creels capable of unwinding yarn packages as large as 300kg and greater are being required.
  • yarn packages get larger they also get wider. Consequently, creels according to US '134 require wider first and second rollers capable of allowing the yarn to traverse the full width of the yarn package as it unwinds. This considerably increases the creel cost and size .
  • the traversing of the yarn across the yarn package also introduces fluctuations in the tension of the yarn, created by changes in the distance that the yarn travels within the creel. Ideally the tension should be constant.
  • a similar problem is involved in the winding process of putting the yarn onto the yarn package.
  • a bow bar to counteract the change in distance as the yarn traverses across the width of the yarn package.
  • Bow bars are not suitable for the unwinding process as a large diameter bar would be required in order to reduce damage to the yarn caused by bending about a small radius.
  • rolling guides rather than fixed guides.
  • a creel comprises at least one yarn package holder for mounting a yarn package of the rotational type, wherein each yarn package holder has a corresponding yarn guide apparatus that comprises a moveable first yarn guide means, the yarn being drawn from the yarn package to the first yarn guide means under tension, said tension causing the first yarn guide means to move towards (to a position substantially in alignment with) the point at which the yarn leaves the yarn package.
  • each yarn guide apparatus may comprise guiding means and the first yarn guide means may be slidably mounted on the guiding means.
  • the guiding means may be arranged perpendicular to the axis of the yarn package.
  • the guiding means may be substantially straight.
  • the guiding means may be arcuate.
  • the guiding means may comprise a rod or tube of a substantially constant cross section.
  • each yarn guide apparatus may comprise a pivoted member, wherein the first yarn guide means is attached to said member.
  • the pivoted member may rotate about an axis and the moveable first yarn guide means may be located spaced from the pivot axis.
  • the axis may be fixed in relation to the axis of the yarn package holder.
  • the axis may be perpendicular to the axis of the yarn package holder and preferably the axis of rotation may be substantially horizontal.
  • each yarn guide apparatus may comprise a second yarn guide means, wherein the yarn may be drawn from the first yarn guide means to the second yarn guide means .
  • the pivoted member may include a first elongate section and the first yarn guide means may be located towards a first end of the elongate section and the pivot axis may be located at a second end of the elongate section .
  • the second yarn guide means may be attached to the pivoted member and may preferably be located spaced closer to the rotation axis of the pivoted member than the first yarn guide means.
  • the location of the second yarn guide means may substantially correspond to the location of the pivot axis.
  • the yarn guide means may be rotatable and may preferably comprise rollers or pulleys.
  • the axis of the rollers may be parallel to the axis of the yarn package holder.
  • the rollers may retain the yarn such that the yarn does not move significantly in the axial direction of the yarn guide.
  • the rollers may comprise a varying diameter to retain the yarn or alternatively may comprise a constant diameter, wherein the yarn guide means comprises one or more guides to retain the yarn on the roller.
  • the guides may be pins and may be ceramic coated.
  • the yarn package holder may be mounted substantially horizontally.
  • the pivot axis is mounted above the axis of the yarn package holder.
  • the first yarn guide means is located beneath the axis of the yarn package holder.
  • the pivotable member may comprise a second counterbalance section, which may be arranged on an opposing side of the pivot axis to the first yarn guide means.
  • the counterbalance is balanced such that the only rotational force applied to the yarn guide means about the pivot axis is generated by the tension in the yarn .
  • the pivot axis of the pivotable member may be arranged level with the centre of the width of the yarn package holder axis. Alternatively the pivot axis may be arranged to one side of the yarn package holder.
  • the rotation radius may be substantially longer than the width of the yarn package holder.
  • the radius may be at least twice the width of the package holder.
  • the radius may be at least three times the width of the package holder.
  • the radius may be at least four times the width of the package holder.
  • the first yarn guide means is located toward the rear of the creel with respect to the yarn package holder.
  • a method of unwinding at least one yarn package of the rotational type comprises applying tension to a yarn that is routed from each yarn package on a creel, wherein for each yarn package the creel comprises a yarn package holder for mounting the yarn package and a corresponding yarn guide apparatus comprising a moveable first yarn guide means, the yarn being drawn from the yarn package via the first yarn guide means under tension, said tension causing the first yarn guide means to move to a position substantially in alignment with the point at which the yarn leaves the yarn package.
  • the present invention includes any combination of the herein referred to features or limitations.
  • Figure 1 is a rear elevation view of one yarn package of a creel according to the present invention and in a first position corresponding to the yarn being unwound from around the middle of the yarn package;
  • Figure 2 is a rear elevation view of the creel in a second position corresponding to the yarn being unwound from near the left hand end of the yarn package;
  • Figure 3 is a rear elevation view of the creel in a third position corresponding to the yarn being unwound from near the right hand end of the yarn package;
  • Figure 4 is a side view of the creel
  • Figure 5 is a top elevation view of the creel
  • Figure 6 shows part of the creel according to a second embodiment of the present invention.
  • a creel generally comprises multiple yarn packages arranged on a frame in a grid like manner. Each yarn package is mounted on the frame in a predetermined area, each area being substantially the same and in accordance with the creel described herein.
  • the preferred embodiment of a creel includes a yarn package 2, which is mounted on a yarn package holder 4, and yarn guiding apparatus.
  • the yarn guiding apparatus includes a first 6, second 8, third 9, and forth 10 yarn guiding means, and a pivoting member 12 that rotates about a pivot 14.
  • Yarn 16 is drawn from the yarn package and through the creel by the first, second, third, and forth yarn guiding means.
  • the yarn package 2 is of a rotational type with the yarn 16 wound in a spiral pattern back and forth across the yarn package.
  • the yarn package holder 4 is of any well known rotational type and the yarn package is mounted thereon such that the yarn package is free to rotate.
  • the axis of the yarn package is substantially horizontal.
  • the yarn package holder is mounted on a frame 18.
  • the pivoting member 12 swings about a pivot 14.
  • the pivoting member 12 is substantially elongate and is shown in the Figures as a straight rod.
  • the first yarn guiding means 6 is attached to a first end of the member 12 by a stub axle.
  • the pivot is attached to the member spaced from the first yarn guiding means and towards a second end of the member.
  • the second end of the member is on the opposing side of the pivot to the yarn guiding means 6 and comprises a counterbalance section 22.
  • the counter balance section may be removable from the pivoting member, for instance if the creel does not provide sufficient space it may be necessary to remove the counter balance section and operate the creel without said section.
  • the counterbalance section includes a rod that extends from the distal end of the member 12 at an angle of approximately 90°.
  • a counter balance weight 24 is movably attached to the rod such that the balance of the member can be altered.
  • the counterbalance section operates in any well known method.
  • the pivot 14 is attached to the frame such that the pivoting member swings about an axis.
  • the pivot axis is arranged substantially perpendicular to the axis of the yarn package and in a horizontal plane such that the member 12 swings in a vertical plane.
  • the counterbalance weight is arranged to act as a perfect counterbalance to the first end such that, in isolation, the rotating member produces a zero net bending moment about the pivot axis, such that, as will become clear, in use the only force acting on the member is generated by the tension in the yarn.
  • the pivot axis is shown arranged substantially in line with the centre of the width of the creel package; however, the invention would work equally with the pivot arranged to either side.
  • Figure 4 shows the location of the pivot axis and first yarn guide 6.
  • the pivot axis is located rearwardly and upwardly of the creel package axis.
  • the first yarn guide is located rearwardly and downwardly of the creel package.
  • the second yarn guiding means 8 is shown in the Figures as being attached to the rotating member at a position forward of the pivot point 14. However, it will be appreciated that whilst ideally the second yarn guiding means should be located as close to the pivot position as possible so that its movement is reduced to a minimum, the present invention would work equally with the second yarn guiding means attached at any location on the member 12 or alternatively to any suitable position on the frame.
  • the third 9 and forth 10 yarn guiding means are attached to a braking member 26.
  • the braking member is rotatable about a rod 28 with an axis that is fixed to the frame.
  • the third yarn guiding means is arranged on the braking member forward of the rod and at a first end of the braking member.
  • the forth yarn guiding means is attached rearwardly of the rod and at a second end of the braking member.
  • a first end of a flexible member such as a rope 30 is fixed to the braking member at the second end.
  • the rope is arranged to wrap around a radial surface of the creel package holder 4 with its second end fixed to the frame.
  • the braking member is biased to rotate the third yarn guiding means downwardly by a spring 32. Such rotation tensions the rope 30, which applies a braking force to the creel package holder to resist rotation of the creel package.
  • Each of the first, second, third and forth yarn guiding means comprise any well known arrangement capable of guiding the yarn about the path whilst retaining the position of the yarn on the yarn guiding means, for example, fixed rods or rollers.
  • the axes of the rods or rollers are arranged parallel to the axis of the yarn package.
  • the yarn guide means are shown in Figures 1-6 as comprising well known pulley type rollers that have a varying diameter. The diameter of the roller increases from the middle, outwardly toward the radial edge. It is well known that the geometry of such rollers maintain the yarn position with respect to the roller by urging the yarn toward the smallest diameter section at the centre of the roller.
  • yarn is drawn rearwardly from the yarn package and about the first yarn guiding means and then upwardly and about the second yarn guiding means.
  • the yarn is then routed according to any well known creel layout, which, as shown in the Figures, may be forwardly and over then under the third and forth yarn guiding means respectively.
  • the yarn is guided upwardly and away from the creel by further yarn guiding means and toward a production process such as a converting oven or fabric producing machine.
  • the yarn is unwound by applying tension to the yarn.
  • the forth yarn guiding means 10 is urged upwardly against the biasing force of spring 32. This relaxes the tension in the rope 30 that releases the braking force applied by it to the yarn package holder thus allowing the yarn package holder to rotate. Consequently the yarn is unwound.
  • the forth yarn guiding means is urged downwardly by the spring, which reapplies the braking force to the yarn package holder such that the yarn package does not rotate.
  • the point at which the yarn leaves the yarn package traverses axially back and forth across the yarn package, thus generating forces in the axial direction with respect to the yarn package.
  • the tension forces act to move the first yarn guiding means 6 to a position substantially in alignment with the point at which the yarn leaves the yarn package. Consequently, the yarn is drawn from the yarn package in a line that is substantially perpendicular to the yarn package axis.
  • the tension moves the first yarn guiding means due in part to friction between the yarn and yarn guiding means but also due to the geometry of the pulleys.
  • the first yarn guiding means moves to find equilibrium of the forces.
  • the rotating member is urged, by the tension in the yarn to the position shown in Figure 2.
  • the rotating member moves towards the centre position shown in Figure 1.
  • the yarn tension urges the rotating member towards the position shown in Figure 3, which shows the yarn being unwound when near the right hand side of the yarn package.
  • the rotating member rotates back and forth between the two extreme positions shown in Figure 2 and 3 respectively. Stops (not shown) may be used to restrict the rotating member from moving past the extremities of the yarn package, which may otherwise occur due to inertia.
  • the rotating member may also comprise any well known damping means (not shown) either within the pivot point or acting externally on the rotating member, for example springs, in order to reduce the inertia effects.
  • Figure 6 shows an additional or alternative arrangement for any the yarn guiding means wherein the rollers 34 comprise a constant diameter.
  • the tension in the yarn may create sufficient friction between the yarn and roller in order to maintain the position of the yarn on the roller, thus, in the case of the first yarn guiding means, creating the forces necessary to move the roller.
  • this frictional force may not be sufficient and, as such, the yarn guiding means includes two rods 36, 37. The two rods are fixed with respect the axis of the roller and are arranged either side of the yarn in order to restrict the axial movement of the yarn.
  • the pivot 14 is arranged perpendicular to the axis of the yarn package but inclined at an angle to the horizontal.
  • the member 14 may still be balanced such that, in use, the only rotating force applied about the pivot axis is caused by the yarn tension.
  • the arrangement still operates in accordance with the present invention, however before moving the first yarn guide means, the yarn tension must first overcome the inertia of the member.
  • the counter balance may be arranged such that, in isolation, the member has a net bending moment urging the member towards a vertical position.
  • the first yarn guide means is slidably mounted on a guide member such as a rail or rod.
  • the rod is arranged parallel and inline to the axis of the yarn package and attached at both ends to the frame.
  • the embodiment operates equally independent of the position of the guide member, but will be described herein with the guide member arranged rearwardly and downwardly of the yarn package axis.
  • the second yarn guide means is arranged, as in the first embodiment, rearwardly and upwardly of the yarn package axis but attached to the frame.
  • the third and forth yarn guide means are arranged substantially as before and in accordance with the first embodiment .
  • the first yarn guiding means is substantially in accordance with the first embodiment but includes a mounting hole that is coincident with the axis of the roller.
  • the mounting hole includes a bearing such that the first yarn guide is mounted on the rod with the rod being arranged within the mounting hole and the bearing cooperates with the rod so that the yarn guide can slide axially along the rod with minimal friction.
  • the tension in the yarn acts to slide the yarn guide back and forth across the rod substantially as before in the first embodiment .
  • the guide member may be straight or alternatively, in order to compensate for the varying yarn length between the yarn package and second yarn guiding means, the guide member may be arcuate.
  • the creel according to the present invention has several benefits over existing creels.
  • the width of the yarn guiding means is reduced.
  • the yarn is unwound without causing the yarn to traverse across the roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Unwinding Of Filamentary Materials (AREA)

Abstract

L'invention concerne un cantre comprenant une pelote (2) de fil de type rotatif, montée sur un support (4) de pelote de fil, et un appareil de guidage du fil. L'appareil de guidage du fil comprend des premier (6), deuxième (8), troisième (9) et quatrième (10) moyens de guidage du fil. Le premier moyen de guidage du fil est fixé à une première extrémité d'un élément (12) pivotant. L'élément pivotant pivote autour d'un point (14) distant de la première extrémité. Pendant l'utilisation, du fil est tiré à partir de la pelote de fil et autour des premier, deuxième, troisième et quatrième moyens de guidage du fil. Le fil est déroulé en lui appliquant une tension. Pendant le déroulement, le point où le fil quitte la pelote de fil va et vient axialement sur la pelote de fil. Comme le premier moyen (6) de guidage du fil est libre de tourner autour du pivot (14), la tension dans le fil agit pour amener le premier moyen (6) de guidage du fil dans une position sensiblement alignée avec le point où le fil quitte la pelote de fil.
EP07705338A 2006-01-17 2007-01-17 Ameliorations sur les cantres ou liees a ceux-ci Withdrawn EP1973828A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0600884.1A GB0600884D0 (en) 2006-01-17 2006-01-17 Improvements In Or Relating To Creels
PCT/GB2007/050024 WO2007083163A1 (fr) 2006-01-17 2007-01-17 Ameliorations sur les cantres ou liees a ceux-ci

Publications (1)

Publication Number Publication Date
EP1973828A1 true EP1973828A1 (fr) 2008-10-01

Family

ID=35998150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07705338A Withdrawn EP1973828A1 (fr) 2006-01-17 2007-01-17 Ameliorations sur les cantres ou liees a ceux-ci

Country Status (8)

Country Link
US (1) US20100187349A1 (fr)
EP (1) EP1973828A1 (fr)
JP (1) JP2009523682A (fr)
KR (1) KR20080089479A (fr)
CN (1) CN101374745A (fr)
BR (1) BRPI0706614A2 (fr)
GB (1) GB0600884D0 (fr)
WO (1) WO2007083163A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2718490A4 (fr) * 2011-06-16 2015-03-25 American Linc Llc Ensemble rouleau de suralimentation, textile et procédé de réglage de la tension d'un fil se déplaçant
DE102015120292B3 (de) * 2015-11-24 2017-04-20 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Gesteuerte Abspulvorrichtung
NL2018606B1 (en) 2017-03-30 2018-10-10 Vmi Holland Bv Creel bobbin brake, creel bobbin assembly, a creel and a creel method
KR102551770B1 (ko) * 2019-10-15 2023-07-05 (주)엘엑스하우시스 언와인딩 크릴장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004026742A2 (fr) * 2002-09-19 2004-04-01 Berkeley Process Control, Inc. Suiveur de devidage de fibres

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2068014A (en) * 1933-11-07 1937-01-19 Celanese Corp Means for measuring yarns
US2920840A (en) * 1956-10-10 1960-01-12 Goodrich Co B F Let-off apparatus
US3282518A (en) * 1964-12-11 1966-11-01 U S Baird Corp Coil reel
US3517892A (en) * 1968-03-15 1970-06-30 Allied Chem Unwinding device for a ball warp package
US3731889A (en) * 1971-02-01 1973-05-08 Alexeff Snyder Ets Tensioning apparatus
DE2105949A1 (en) * 1971-02-09 1972-08-17 Dynamit Nobel Ag Heavy unwinding drum - with automatically operated band brake
US4143832A (en) * 1977-05-19 1979-03-13 Platt Ellis F Thread dispenser
US4423588A (en) 1981-10-22 1984-01-03 Trimak Equipment Ltd. Apparatus for paying off wire from a bobbin
GB9100954D0 (en) * 1991-01-16 1991-02-27 Smith Colin P Yarn delivery
JP2549776B2 (ja) * 1991-08-28 1996-10-30 住友電気工業株式会社 サプライスタンドの自動トラバース装置
US5803134A (en) * 1993-05-06 1998-09-08 Texkimp Limited Creel and yarn package holders with quick stop mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004026742A2 (fr) * 2002-09-19 2004-04-01 Berkeley Process Control, Inc. Suiveur de devidage de fibres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007083163A1 *

Also Published As

Publication number Publication date
KR20080089479A (ko) 2008-10-06
GB0600884D0 (en) 2006-02-22
CN101374745A (zh) 2009-02-25
BRPI0706614A2 (pt) 2011-04-05
US20100187349A1 (en) 2010-07-29
JP2009523682A (ja) 2009-06-25
WO2007083163A1 (fr) 2007-07-26

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