EP1300357A1 - Garnaufwickelvorrichtung - Google Patents

Garnaufwickelvorrichtung Download PDF

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Publication number
EP1300357A1
EP1300357A1 EP02021475A EP02021475A EP1300357A1 EP 1300357 A1 EP1300357 A1 EP 1300357A1 EP 02021475 A EP02021475 A EP 02021475A EP 02021475 A EP02021475 A EP 02021475A EP 1300357 A1 EP1300357 A1 EP 1300357A1
Authority
EP
European Patent Office
Prior art keywords
yarn
traverse
tension
fulcrum guide
traverse device
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.)
Granted
Application number
EP02021475A
Other languages
English (en)
French (fr)
Other versions
EP1300357B1 (de
Inventor
Kinzo Hashimoto
Kazuhiko Nakade
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery 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 Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP1300357A1 publication Critical patent/EP1300357A1/de
Application granted granted Critical
Publication of EP1300357B1 publication Critical patent/EP1300357B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/40—Applications of tension indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/20—Sensing or detecting means using electric elements
    • B65H2553/21—Variable resistances, e.g. rheostats, potentiometers or strain gauges
    • 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

  • the present invention relates to a yarn winder for continuously winding a filament yarn such as synthetic fiber, which comprises a tension detector for monitoring yarn tension during winding.
  • the yarn speed control method had problems that when the traverse speed is changed during winding, the yarn tension also changed, and it was difficult to control this change in the yarn tension.
  • the yarn tension control method can form satisfying yarn packages, without any bulge or saddle. Therefore, the yarn tension control method is considered as an extremely effective technology in carrying out winding process that changes the traverse speed during winding.
  • the yarn tension control method it is necessary to provide the tension detector for detecting the tension of the yarn by contacting against such yarn.
  • having the tension detector to contact against the yarn that is running at a high speed generally causes the yarn quality to deteriorate. Therefore, to reduce bad influence on the yarn as much as possible, there is a method proposed conventionally for the detection of the yarn tension.
  • Such method is to provide the tension detector directly below a traverse fulcrum, where the tension detector includes a contact member that contacts minutely against both ends of the amplitude of the yarn that is traversed like a swing of a pendulum (for example, Japanese Patent Publication No. 51-44668, and Japanese Patent Publication No. 60-47985).
  • the traverse fulcrum guide and the tension detector can be attached to a fixed frame, and the traverse device and a contact roller can be provided within an elevating unit.
  • the elevating unit comprising the contact roller can be elevated accompanying the increase in the winding diameter of the yarn package. As a result, the contact pressure against the yarn package is maintained suitable.
  • a yarn winder comprises a bobbin holder that is set with at least a bobbin for winding at least a yarn, a contact roller that rotates while contacting against at least a yarn package, a traverse device that is provided to an upstream side of the contact roller and traverses the yarn that is being fed, a traverse fulcrum guide that is to be a traverse fulcrum of the yarn that is traversed in the upstream side of the traverse device, and a tension detector that is located between the traverse device and the traverse fulcrum guide and that detects a tension of the yarn by contacting against a contact element, the yarn that is located at both ends of the traverse amplitude.
  • each of the distance between the traverse fulcrum guide and the tension detector, the distance between the tension detector and the traverse device, and the distance between the traverse fulcrum guide and the traverse device is set constant regardless of a winding diameter of the yarn package. According to the present invention, since each of the afore-mentioned distances are set constant respectively, by maintaining the condition to be constant when the yarn that runs while traversing like a swing of a pendulum is contacted against the tension detector at both ends of the amplitude to measure the yarn tension, an accurate tension value can be obtained.
  • the present invention is preferable to be applied to the yarn winder in which a traverse fulcrum guide and a tension detector are attached to an elevating unit that includes the traverse device and that elevates accompanying an increase in a winding diameter of a yarn package.
  • the present invention can be applied to the yarn winder wherein the bobbin holder descends accompanying the increase in the winding diameter of a yarn package, and a contact pressure of the yarn package against the contact roller is maintained suitable.
  • FIG. 1 is a side view showing a schematic configuration of a yarn winder M according to an embodiment of the present invention.
  • a plurality of bobbins B are set on one bobbin holder H so that a plurality of yarn packages P can be formed at the same time.
  • four bobbins B are set on the bobbin holder H, however, the number of bobbins set on the bobbin holder H can be six, eight, twelve, etc..
  • a machine body K of the yarn winder M is provided with the bobbin holder H for holding a plurality of bobbins B, and an elevating unit U including a traverse device T and a contact roller C.
  • the elevating unit U can elevate and descend in relation to the machine body K.
  • the yarn winder M is set such that accompanying the increase in the winding diameter of the package P that is formed by the yarn being wound on the bobbin B, the contact roller C elevates to maintain the contact pressure suitable.
  • the contact roller C is cylinder shaped, arranged in parallel to the bobbin holder H, and is supported rotatable to a casing of the elevating unit U.
  • the bobbin holder H is cylinder shaped, supported in a cantilever to the machine body K, and is made rotatable and driven by a motor (not shown in the drawings).
  • two bobbin holders H are provided in 180 degrees interval on a turret plate that is attached rotatable to the machine body K, and one of the bobbin holders H is provided at a winding position, and the other bobbin holder H is provided at a standby position.
  • the turret plate and the bobbin holder H at the standby position are abbreviated.
  • the elevating unit U includes the traverse device T and the contact roller C.
  • a rotary blade traverse device, a cam traverse device, or the like are adopted for the traverse device T.
  • the traverse device T is provided with a traverse guide 12 for guiding a yarn S in a traverse direction.
  • a traverse fulcrum guide 1 and a tension detector 3 are provided in this order.
  • the traverse fulcrum guide 1 and the tension detector 3 are attached to a support member 9 that is joined to a casing of the elevating unit U.
  • the traverse fulcrum guide 1, the tension detector 3 and the traverse device T are joined to the elevating unit U so that to form one body, and as shown in Figure 5A that shows a case in which the diameter of the yarn package P is small, and as shown in Figure 5B that shows a case in which the diameter of the yarn package P is large, each of distances during winding process, a distance L1 from the traverse fulcrum guide 1 to the tension detector 3, a distance L2 from the tension detector 3 to the traverse device T, and a distance L3 from the traverse fulcrum guide 1 to the traverse device T, are set to be constant regardless of the winding diameter of the yarn package P.
  • the traverse fulcrum guide 1 that is provided to the upstream side of the yarn running direction in relation to the traverse device T determines a standard position when traversing the yarn S from side to side by the traverse device T.
  • the standard position at the winding process is set on approximately a bisector N of the traverse width of the traverse device T.
  • the traverse fulcrum guide 1 is guided by a guide member 14 that is attached to the support member 9.
  • the traverse fulcrum guide 1 is made transferable along the axis direction of the bobbin holder H toward a tip end (free end) of the bobbin holder H, from the standard position shown in Figure 1 to an initial stage threading work position shown in Figure 4.
  • the traverse fulcrum guide 1 is, as shown in an enlarged view in Figure 3, formed with a ring-shaped guide section 1a where the yarn S passes through, and a base 1c that supports the guide section 1a.
  • a notch 1b is formed so that the yarn S can be inserted to the ring section 1a easily.
  • the tension detector 3 is provided between the traverse fulcrum guide 1 and the traverse device T, and detects the tension of the yarn S that passes through the traverse fulcrum guide 1 and that is traversed by the traverse device T.
  • the tension detector 3 is fixed on the support member 9, and is provided on approximately the bisector N of the traverse width of each corresponding traverse device T and directly below the standard position of the traverse fulcrum guide 1 in the winding process.
  • the tension detector 3 includes a contact element 4 that holds the yarn S at the tension detecting position, a shaft 5 that is interlocked to the contact element 4, a pressure-sensitive sensor 6 that is attached to both the left and the right sides of the shaft 5 in proximity to a base 7, and the base 7 that supports the shaft 5.
  • a storing section 4a for the yarn S is formed on the contact element 4, by notching appropriate length from the center tip of the contact element 4 in the axis direction of the shaft 5.
  • insert guide sections 4b that have slanting edges are provided to the left and right edges of the contact element 4 so as to sandwich the storing section 4a.
  • the storing section 4a is a section for holding the yarn S at the tension detecting position.
  • the insert guide sections 4b guides the yarn S into the storing section 4a, which is the tension detecting position, by a traverse movement of the yarn S at time of the initial stage threading.
  • the tension detector 3 measures the tension of the yarn S during the winding process in the following way.
  • the contact element 4 and the shaft 5 of the tension detector 3 are preferable to be light weighted as much as possible.
  • the left and right edges of tip of the contact element 4 are preferably to be tapered off by the insert guide sections 4b that have slanting edges.
  • the insert guide sections 4b are also contributing to reducing the weight of the contact element 4 by narrowing the width of the contact element 4 toward the tip end.
  • the yarn winder M of the present embodiment is provided with the traverse fulcrum guide 1, the tension detector 3 and the traverse device T for each bobbin B.
  • the elevating unit U elevates to maintain the contact pressure of the contact roller C against the yarn package P to be suitable. Since the traverse device T, the traverse fulcrum guide 1 and the tension detector 3 elevate as one body with the elevating unit U that is elevating, as shown in Figures 5A and 5B, each of the distance L1 from the traverse fulcrum guide 1 to the tension detector 3, the distance L2 from the tension detector 3 to the traverse device T, and the distance L3 from the traverse fulcrum guide 1 to the traverse device T is also maintained at a constant value respectively.
  • the angle ⁇ 1 is an algle between the traverse fulcrum guide 1 and the tension detector 3 that the yarn S is slanting in relation to the bisector N or the traverse width of the traverse device T.
  • the angle ⁇ 2 is an angle between the tension detector 3 and the traverse device T that the yarn S is slanting in relation to the bisector N.
  • the present invention wherein each of the distance between the traverse device T and the traverse fulcrum guide 1, between the traverse fulcrum guide 1 and the tension detector 3, and between the traverse device T and the tension detector 3 are maintained constant during the winding process, can be applied to the yarn winder M, which the elevating unit U is elevated along with the contact roller C accompanying the increase in the winding diameter of the yarn package.
  • the present invention can be applied to a yarn winder, which maintains the contact pressure of the yarn package P against the contact roller C to be suitable by descending the bobbin holder H in the direction of an arrow D, accompanying the increase in the winding diameter of the yarn package P.
  • the condition of when detecting the yarn tension by contacting the yarn that is traversed like a swing of a pendulum against the tension detector at both ends of the amplitude of the yarn during the winding process is maintained constant, and an accurate tension value can be obtained regardless of the winding diameter of the package.
  • high quality yarn packages, which the tension is controlled at a target value can be obtained.
  • the contact pressure of the contact roller against the yarn package is maintained suitable by elevating the elevating unit, accompanying the increase in the winding diameter of the yarn package, it is especially preferable to apply the second aspect of the present invention.
  • the relationship of each of the distances, the distance between the traverse device and the traverse fulcrum guide, the distance between the traverse fulcrum guide and the tension detector, and the distance between the traverse device and the tension detector can be maintained constant easily during the winding process.

Landscapes

  • Winding Filamentary Materials (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
EP02021475A 2001-10-02 2002-09-25 Garnaufwickelvorrichtung Expired - Lifetime EP1300357B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001306027A JP3724402B2 (ja) 2001-10-02 2001-10-02 糸条巻取機
JP2001306027 2001-10-02

Publications (2)

Publication Number Publication Date
EP1300357A1 true EP1300357A1 (de) 2003-04-09
EP1300357B1 EP1300357B1 (de) 2006-03-15

Family

ID=19125731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02021475A Expired - Lifetime EP1300357B1 (de) 2001-10-02 2002-09-25 Garnaufwickelvorrichtung

Country Status (4)

Country Link
EP (1) EP1300357B1 (de)
JP (1) JP3724402B2 (de)
CN (1) CN1270955C (de)
DE (1) DE60209843T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2479129B1 (de) * 2011-01-25 2016-08-10 Murata Machinery, Ltd. Garnwicklungsmaschine
JP6935243B2 (ja) * 2017-06-21 2021-09-15 Ｔｍｔマシナリー株式会社 糸巻取機

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848171A (de) * 1971-10-20 1973-07-07
US3931938A (en) * 1974-03-18 1976-01-13 Toray Industries, Inc. Method and apparatus for winding yarn into yarn package
US4245794A (en) * 1978-02-16 1981-01-20 Toray Industries, Inc. Yarn winding apparatus
US4394986A (en) * 1981-05-13 1983-07-26 Toray Industries, Inc. Yarn winding apparatus
JPS5990229A (ja) * 1982-11-16 1984-05-24 Anritsu Corp 磁気ヘツドの位置決め機構
US5029762A (en) * 1988-12-22 1991-07-09 Barmag A.G. Yarn winding apparatus and method
US5074481A (en) * 1989-05-25 1991-12-24 W. Schlafhorst Ag & Co. Method and apparatus for monitoring the yarn winding production process
JPH08324889A (ja) * 1995-06-05 1996-12-10 Toray Ind Inc ターレット型糸巻取機の糸切替方法、ターレット型糸巻取機及び糸巻用ボビン
JPH10273268A (ja) * 1997-03-28 1998-10-13 Toray Ind Inc ターレット式糸条巻取機の糸切替え方法
DE19938491A1 (de) * 1999-08-13 2001-02-15 Schlafhorst & Co W Verfahren und Vorrichtung zum Betreiben einer Spulstelle

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848171A (de) * 1971-10-20 1973-07-07
US3931938A (en) * 1974-03-18 1976-01-13 Toray Industries, Inc. Method and apparatus for winding yarn into yarn package
US4245794A (en) * 1978-02-16 1981-01-20 Toray Industries, Inc. Yarn winding apparatus
US4394986A (en) * 1981-05-13 1983-07-26 Toray Industries, Inc. Yarn winding apparatus
JPS5990229A (ja) * 1982-11-16 1984-05-24 Anritsu Corp 磁気ヘツドの位置決め機構
US5029762A (en) * 1988-12-22 1991-07-09 Barmag A.G. Yarn winding apparatus and method
US5074481A (en) * 1989-05-25 1991-12-24 W. Schlafhorst Ag & Co. Method and apparatus for monitoring the yarn winding production process
JPH08324889A (ja) * 1995-06-05 1996-12-10 Toray Ind Inc ターレット型糸巻取機の糸切替方法、ターレット型糸巻取機及び糸巻用ボビン
JPH10273268A (ja) * 1997-03-28 1998-10-13 Toray Ind Inc ターレット式糸条巻取機の糸切替え方法
DE19938491A1 (de) * 1999-08-13 2001-02-15 Schlafhorst & Co W Verfahren und Vorrichtung zum Betreiben einer Spulstelle

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 204 (P - 301) 18 September 1984 (1984-09-18) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04 30 April 1997 (1997-04-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) *

Also Published As

Publication number Publication date
CN1408630A (zh) 2003-04-09
EP1300357B1 (de) 2006-03-15
JP2003113544A (ja) 2003-04-18
DE60209843T2 (de) 2006-11-30
DE60209843D1 (de) 2006-05-11
CN1270955C (zh) 2006-08-23
JP3724402B2 (ja) 2005-12-07

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