EP0114365B1 - Wire or thread tension controlling dancer roller device - Google Patents

Wire or thread tension controlling dancer roller device Download PDF

Info

Publication number
EP0114365B1
EP0114365B1 EP83112921A EP83112921A EP0114365B1 EP 0114365 B1 EP0114365 B1 EP 0114365B1 EP 83112921 A EP83112921 A EP 83112921A EP 83112921 A EP83112921 A EP 83112921A EP 0114365 B1 EP0114365 B1 EP 0114365B1
Authority
EP
European Patent Office
Prior art keywords
rollers
wire
thread
tension
slider
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
Application number
EP83112921A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0114365A2 (en
EP0114365A3 (en
Inventor
Katsuji C/O Yokohama Works Sakamoto
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to AT83112921T priority Critical patent/ATE33122T1/de
Publication of EP0114365A2 publication Critical patent/EP0114365A2/en
Publication of EP0114365A3 publication Critical patent/EP0114365A3/en
Application granted granted Critical
Publication of EP0114365B1 publication Critical patent/EP0114365B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • 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

Definitions

  • the present invention relates to a dancer roller for controlling the tension of wire, thread or the like.
  • a dancer roller is widely used for maintaining constant the tension of the wire or thread.
  • severe performance requirements are imposed, such as a requirement for a tension under 100 g with a maximum variation of ⁇ 5% ( ⁇ 5 g).
  • Such severe performance requirements were not been imposed on earlier wire manufacturing equipment. Accordingly, it has been found necessary to improve the dancer roller to meet such requirements.
  • a dancer roller has a wire/thread inlet side and a wire/thread outlet side, with the wire/thread tension being made constant at the outlet side. That is, a dancer roller is used for making constant the take-up tension at various positions, for example, for making constant the tension at the output side of an extruding station or for making constant the tension at a twisting point when it is used in a wire/thread twisting apparatus.
  • FIG. 1 A prior art dancer roller device is shown in Fig. 1.
  • reference numerals 11, 11' and 11" designate fixed rollers which are rotatably supported through respective bearings 12, 12' and 12", on a shaft 13 affixed to a rigid frame 14.
  • Reference numerals 15 and 15' designate movable rollers which are rotatably supported on a shaft 17 through bearings 16 and 16'.
  • Reference numeral 20 designates a spring which balances with the wire/thread tension
  • 21 designates a rack which engages with a pinion 22 attached to a rotating shaft of an electrical displacement detector 23 which converts the displacement of the slider 18 into an electric signal.
  • Reference numeral 24 designates a pay-off reel driven by an electric motor 25 which is controlled by an electrical controller 26, which is in turn actuated by a signal from the displacement detector 23.
  • the spring 20 may be replaced by a weight 28 as shown in
  • the speed of the reel 24 has to be tightly controlled to follow the variations in the coil feeding speed, and therefore, a complex and expensive device is required for the electrical controller 26 and a large amount of power is required for the motor 25.
  • Fig. 3 which shows a dancer roller device of the invention
  • I designates a group of fixed guide rollers 1, 3, 5 ..., n+1; II, a group of movable guide rollers 2, 4, 6, ... n provided on a slider 8; 9, a support shaft for the slider 8; 10, a coil spring; 11, a rack formed integrally with the slider 8; 12, a pinion; 13, a displacement detector; 14, a reel; 15, a drive motor; and 16, a controller.
  • ⁇ designates the acceleration at the i-th wire/thread position at the inlet side (the direction of the arrow is assumed as the positive direction)
  • n designates the number of wires/thread suspended between the guide roller groups I and II
  • the respective accelerations ⁇ 1 , a 2 , ⁇ 3 , ..., n,+1 of the wire/thread running portions of the guide rollers 1, 2, 3, ...n 1 +1 are expressed as follows:
  • the total tension of the wires/threads suspended between the guide roller groups I and II corresponds to a difference obtained by subtracting a value determined by the moment of inertia from the value of the reaction force T e (constant) of the slider 8.
  • T e constant
  • m G designates the mass of each guide roller
  • m s designates the mass of the slider 8
  • the lefthand side may be arranged as follows:
  • the second term of the equation immediately above has positive and negative components with an offset relation. Therefore, if the respective constants, the moment of inertia J G of one guide roller, the number n, of the wires suspended between the guide roller groups I and II, the radius r of the guide roller at its wire/thread running portion, the mass of inertia m G of one guide roller, and the mass m s of the slider 8, are set such that the second term is zero, the equation becomes
  • the wire/thread tension is not affected by the acceleration a at the inlet side.
  • the condition that the reaction force T e of the slider 8 is constant is a necessary one, it is not constant in the method utilising the weight 28 as shown in Fig. 2. That is, not only it is necessary to employ a spring 20 as shown in Fig. 1, but it is further required that the spring constant be substantially constant (the spring force does not depend on the amount of flexure). This can be attained by using a coil spring having a constant curvature.
  • the moment of inertia of the guide rollers, the mass of the movable guide rollers and the mass of the slider are balanced against the number of guide rollers and the radius of the guide rollers, and a substantially constant spring force is used as a force balancing with the tension so that wire/thread speed variations at the inlet side cannot contribute to variations in wire tension at the outlet side.
  • a substantially constant spring force is used as a force balancing with the tension so that wire/thread speed variations at the inlet side cannot contribute to variations in wire tension at the outlet side.
  • the invention is particularly adapted for use in the manufacture of optical fibers.
  • the invention results in a control device having a reduced cost, made possible, in part, by a motor of smaller capacity than was necessitated by prior art approaches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Ventilation (AREA)
  • Endoscopes (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Catching Or Destruction (AREA)
EP83112921A 1982-12-27 1983-12-21 Wire or thread tension controlling dancer roller device Expired EP0114365B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112921T ATE33122T1 (de) 1982-12-27 1983-12-21 Taenzerrollenvorrichtung zur aufrechterhaltung der zugspannung in einem draht oder faden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP230507/82 1982-12-27
JP57230507A JPS59119617A (ja) 1982-12-27 1982-12-27 線張力コントロ−ル用ダンサロ−ラ装置

Publications (3)

Publication Number Publication Date
EP0114365A2 EP0114365A2 (en) 1984-08-01
EP0114365A3 EP0114365A3 (en) 1986-04-16
EP0114365B1 true EP0114365B1 (en) 1988-03-23

Family

ID=16908839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112921A Expired EP0114365B1 (en) 1982-12-27 1983-12-21 Wire or thread tension controlling dancer roller device

Country Status (8)

Country Link
EP (1) EP0114365B1 (fi)
JP (1) JPS59119617A (fi)
KR (1) KR890003141B1 (fi)
AT (1) ATE33122T1 (fi)
AU (1) AU561857B2 (fi)
CA (1) CA1226857A (fi)
DE (1) DE3376067D1 (fi)
FI (1) FI76767C (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE455599B (sv) * 1986-12-19 1988-07-25 Kabmatik Ab Forfarande och anordning vid matning av kabel
JP2816255B2 (ja) * 1991-03-19 1998-10-27 三菱電機株式会社 張力制御装置
EP0937007B1 (de) * 1996-11-07 2002-06-12 Barmag-Spinnzwirn GmbH Verfahren und aufspulmaschine zum aufspulen eines mit konstanter geschwindigkeit anlaufenden fadens
FI112464B (fi) * 1998-04-17 2003-12-15 T Drill Oy Kelalle pakattujen materiaalien säädettävävoimainen purkulaitteisto
CN103156277B (zh) * 2013-02-21 2015-07-15 南通大学 防捻补丝系统
CN106115360A (zh) * 2016-06-15 2016-11-16 高武保 一种适用于光纤缠绕机上的自动导纤机构
CN106064761A (zh) * 2016-06-15 2016-11-02 高武保 一种适用于光纤缠绕机上的高精度张力控制机构
JP7261398B2 (ja) 2018-12-24 2023-04-20 河政工業株式会社 光ファイバ巻取機構及び光ファイバジャイロ用の光路の製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560204A (en) * 1947-06-17 1951-07-10 Artos Engineering Co Automatic strand feed regulator
US3501075A (en) * 1967-11-28 1970-03-17 Herbert D Scharf Wire tension control device
DE3108605A1 (de) * 1981-03-06 1983-01-13 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Speichervorrichtung fuer insbesondere isolierte elektrische leiterdraehte
FR2503114B1 (fr) * 1981-04-01 1986-02-07 Pourtier Pere Fils Ets Dispositif de deroulement pour fil fragile en bobine

Also Published As

Publication number Publication date
FI76767C (fi) 1988-12-12
JPS6332704B2 (fi) 1988-07-01
AU561857B2 (en) 1987-05-21
KR840006955A (ko) 1984-12-04
AU2278783A (en) 1984-07-05
JPS59119617A (ja) 1984-07-10
FI834768A (fi) 1984-06-28
ATE33122T1 (de) 1988-04-15
CA1226857A (en) 1987-09-15
EP0114365A2 (en) 1984-08-01
FI834768A0 (fi) 1983-12-23
KR890003141B1 (ko) 1989-08-23
DE3376067D1 (en) 1988-04-28
EP0114365A3 (en) 1986-04-16
FI76767B (fi) 1988-08-31

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