EP2599092B1 - Electric wires twisting device and twisted pair cable fabrication method employing the same - Google Patents

Electric wires twisting device and twisted pair cable fabrication method employing the same Download PDF

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Publication number
EP2599092B1
EP2599092B1 EP11723727.1A EP11723727A EP2599092B1 EP 2599092 B1 EP2599092 B1 EP 2599092B1 EP 11723727 A EP11723727 A EP 11723727A EP 2599092 B1 EP2599092 B1 EP 2599092B1
Authority
EP
European Patent Office
Prior art keywords
electric wires
rotor
pair
twisting
slit portion
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.)
Active
Application number
EP11723727.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2599092A2 (en
Inventor
Genta Yamaguchi
Akihiro Mizuno
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.)
Yazaki Corp
Original Assignee
Yazaki Corp
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Publication date
Application filed by Yazaki Corp filed Critical Yazaki Corp
Publication of EP2599092A2 publication Critical patent/EP2599092A2/en
Application granted granted Critical
Publication of EP2599092B1 publication Critical patent/EP2599092B1/en
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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
    • H01B13/02—Stranding-up
    • H01B13/0207—Details; Auxiliary devices

Definitions

  • the present invention relates to an electric wires twisting device for twisting two electric wires together through rotation of a rotor to make a twisted pair cable that is excel in signal protection against electrical noise, for example, and a twisted pair cable fabrication method employing the same device.
  • PTL 1 describes a configuration in which connectors connected to both ends of two electric wires are fixed individually to corresponding receiving jigs, a circular driven gear (a rotor) having a narrow electric wire insertion groove is disposed in a position lying at a longitudinal center of the electric wires, the electric wires are inserted through the electric wire insertion groove, and the driven gear is rotated by a drive gear which is driven by a motor for twisting both the electric wires.
  • a circular driven gear a rotor
  • PTL 2 describes a configuration in which one end portions of two electric wires are fed out towards the other end portions by a drive roller while each being twisted within a cylindrical portion, and an elliptic cylindrical rotor, which is disposed at an intermediate portion in a longitudinal direction of the electric wires and through which both the electric wires are inserted, is moved towards the other end portions while being rotated in the same direction as the twisting direction to thereby twist the electric wires together.
  • the invention has been made in view of the problems inherent in the prior art and an object thereof is to provide an electric wires twisting device which enables the insertion of two electric wires through a rotor easily and in an ensured fashion, which ensures the twisting of the two electric wires and which can fabricate a twisted pair cable with good workability and productivity.
  • an electric wires twisting device according to claim 1.
  • the pair of electric wires are inserted from the outer opening while being arranged parallel so as to be individually disposed on both the diametrical sides of the twisting rod. Then, the twisting rod is rotated together with the rotor by the rotary driving portion, whereby the pair of electric wires are twisted together.
  • the insertion of the electric wires into the rotor is implemented by moving the pair of electric wires in a direction which intersects the direction in which they are arranged at right angles or moving the rotor towards the electric wires.
  • the rotary driving portion has a timing belt which is in contact with a gear portion on an outer circumference of the rotor over a range greater than the width of the slit portion.
  • the driving force is not interrupted by the slit portion, and the rotor rotates at a uniform speed by being given an ensured driving force by the timing belt at all times.
  • An electric wire guide member provided in a frame has a pair of inclined surfaces which continue individually to both sides of the slit portion in the direction of the width of the slit portion, and the pair of electric wires are respectively brought into contact with the pair of inclined surfaces in a state that an interval of the pair of electric wires is greater than the width of the slit portion.
  • the pair of electric wires are picked up in an ensured fashion by the pair of inclined surfaces of the electric wire guide member so as to be guided smoothly into the slit portion along the inclined surfaces.
  • the pair of electric wires which are spaced apart wider than the slit portion from each other, are once compressed to reduce the space therebetween by the slit portion.
  • the pair of electric wires are increased in space therebetween again so as to be individually inserted to both the sides of the twisting rod in the ensured fashion.
  • the pair of electric wires are inserted into the rotor by way of the slit portion in such a state that the ends of the pair of electric wires are fixed with the corresponding clamps, and the twisting rod twists the pair of electric wires together through rotation of the rotor. Then, the resulting twisted pair cable is removed from the slit portion in the rotor.
  • the respective electric wires can be inserted along the slit portion so as to be individually disposed on the diametrical sides of the twisting rod easily and in the ensured fashion, whereby the twisting workability can be improved.
  • the twisting of the electric wires can be implemented in the ensured fashion by causing the twisting rod to rotate together with the rotor.
  • the rotor can be driven at all times irrespective of the size of the width of the slit portion so as to prevent the occurrence of unevenness in rotation speed, thereby making it possible to form the twisted pair cable with good pitch accuracy.
  • the pair of electric wires which are spaced apart wider than the width of the slit portion are once compressed to reduce the space therebetween at the narrow slit portion and are increased in space therebetween again so that they move away outwards from each other so as to be individually disposed on both the sides of the twisting rod at the point in time when the pair of electric wires come out of the slit portion into the diametrically wider inner circumferential surface.
  • the electric wires can be twisted in an ensured fashion by the twisting rod.
  • the electric wires can be inserted into and removed from the rotor easily and in the ensured fashion, and the fabrication of twisted pair cables can be automated so as not only to increase the productivity of twisted pair cables but also to enable the aesthetic and ensured twisting of electric wires by the twisting rod.
  • Figs. 1 to 4 show an embodiment of an electric wires twisting device according to the invention.
  • this electric wires twisting device 1 includes a circularly annular rotor 3 having a slit portion 2 in part thereof in a circumferential direction and disposed vertically, a cylindrical twisting rod 4 provided on a circular inner circumferential surface 3a of the rotor 3 so as to be erected therefrom while facing the slit portion 2, a rotary driving device 5 for rotary driving the rotor 3, and a lifting drive device 6 (a setting portion) for lifting up and down the rotor 3 together with the rotary driving device 5.
  • the rotary driving device 5 includes a timing belt 8 which meshes with a gear portion 7 provided on a circular outer circumferential surface of the rotor at a gear portion 8a formed on an outer circumference thereof (in the drawings, shown in a plan view as a mater of convenience), a drive gearwheel 9 which meshes with a gear portion 8b (shown in a plan view as a matter of convenience) formed on an inner circumference of the timing belt 8, a horizontal motor 10 which is coupled to the drive gearwheel 9 at a shaft portion thereof, a pair of upper and lower guide gearwheels 11 which press the timing belt 8 against the gear portion 7 on the outer circumference of the rotor 3.
  • a timing belt 8 which meshes with a gear portion 7 provided on a circular outer circumferential surface of the rotor at a gear portion 8a formed on an outer circumference thereof (in the drawings, shown in a plan view as a mater of convenience)
  • a drive gearwheel 9 which meshes with a gear portion 8b (show
  • a length of a belt portion (a portion in press contact with the rotor) (also denoted by reference numeral 8b) between the pair of guide gearwheels 11 is larger than an inner width of the slit portion 2, whereby the rotor 3 is driven in an ensured fashion even at the cut-out slit portion 2.
  • the lifting drive device 6 includes mainly a vertical air cylinder 12.
  • An upward rod 12a of the air cylinder 12 is connected to a unit frame 14 via a horizontal connecting rod 13.
  • the unit frame 14 includes a vertical strut 15 placed at one side portion and two front and rear vertical plate portions 16 which are fixed in place with the strut 15 held therebetween.
  • the rotor 3 is disposed between the two plate portions 16.
  • Gearless outer circumferential surfaces 3b which lie before and after the gear portion 7 on the outer circumference of the rotor 3 are supported by a plurality of rotatable guide rollers (bearings) 17 with a collar 17a, and shaft portions 17b of the guide rollers 17 and shaft portions 11 a of the guide gearwheels 11 are fixed to the front and rear plate portions 16.
  • the front and rear plate portions 16 each have a U-shaped cut-out hole 16a which has a slightly larger width than a diameter of the inner circumferential surface 3a of the rotor 3.
  • the guide rollers 17 support rotatably the rotor 3 in the air while positioning the rotor 3 vertically and horizontally.
  • the rotor 3 may also be referred to as a rotary pulley.
  • a bottom portion of the air cylinder 12 is fixed to a horizontal base plate 18, and the base plate 18 is fixed, in turn, to an upper surface of a base plate 19 which lies on a lower surface side of the base plate 18.
  • a slide portion (not shown) which is brought into engagement with a longitudinal horizontal rail of a system, which will be described later, is fixed to the lower base plate 19.
  • a vertical slide engagement portion 15a ( Fig. 2 ) is provided on one side of the strut 15 which is connected to the upper connecting rod 13.
  • the slide engagement portion 15a is in engagement with a vertical rail 20a of a vertical base plate 20 ( Fig. 2 ) which is fixedly erected on the base plate 18 along the air cylinder 12 so as to slide vertically.
  • the rotor 3 and the twisting rod 4 are formed of, for example, metal.
  • a diameter of the inner circumference of the rotor 3 is formed larger than a width W ( Fig. 2 ) of the slit portion 2.
  • a diameter of the twisting rod 4 is smaller than the width W of the slit portion 2.
  • a distal end 4a of the twisting rod 4 has a semispherical shape and is situated at almost the same height as a lower end (a proximal end) of the slit portion.
  • a lower end portion (a proximal end portion) 4b of the twisting rod 4 is stepped to be larger diametrically than the distal end portion 4a and is fixed to an annular circumferential wall 3c of the rotor 3 through press fitting or screwing.
  • the twisting rod 4 rotates together with the rotor 3.
  • the twisting rod 4 is positioned vertically upwards.
  • the motor 10 ( Fig. 1 ) is controlled so that the slit portion 2 is positioned in the upper position at all times when the rotor 3 stops by a control unit (not shown).
  • a pair of left and right electric wire guide members 21, having inclined surfaces 21 a which are inclined so as to expand a space therebetween in a tapered fashion as they extend upwardly, are fixedly provided between the front and rear plate portions 16 at an upper portion of the slit portion 2.
  • a triangular, vertical electric wire guide plate 21c is provided integrally on each guide member 21 at front and rear thereof.
  • Each guide plate 21c has an inclined side portion 21b which is tapered downwardly to extend along the cut-out hole 16a in the plate portion 16 so as to increase a space defined with an inclined side portion 21 b of a diametrically corresponding electric wire guide plate 21 c.
  • the left and right inclined surfaces 21 a continue to approach left and right upper ends of the slit portion 2 with almost no gap.
  • Figs. 2 to 4 show a twisted pair cable fabrication method employing the electric wires twisting device 1.
  • the air cylinder 12 is compressed when the rotor 3 stops, and a unit main body portion 22, made up of the rotor 3, the gearwheels 9, 11, the timing belt 8, the motor 10, the rollers 17 and the plate portions 16, is lowered to be positioned in place.
  • a pair of electric wires 23 are disposed above the left and right inclined surfaces 21a of the guide members 21 in such a state that the electric wires 23 are taut with a certain tension (in such a state that the electric wires 23 are stretched in a straight-line fashion in a longitudinal direction (a front-to-rear direction)).
  • the air cylinder 12 is extended, whereby the unit main body portion 22 rises together with the rod 12a.
  • the pair of electric wires 23 are compressed at part to reduce the space defined therebetween (with the compressed portion denoted by reference numeral 23a) while in sliding contact with the inclined surfaces 12a of the corresponding guide members 21 and are guided into an inner space 3d of the rotor 3 along the corresponding inclined surfaces 21a. Then, as is shown in Fig.
  • the vertical twisting rod 4 is raised together with the rotor 3 by the rod 12a of the air cylinder 12 which is extended so as to be inserted between the pair of electric wires 23, whereby the electric wires 23 are individually disposed on left- and right-hand sides of the twisting rod 4 at a center in a height direction of the rotor 3 within the inner space 3d.
  • the electric wires 23 are restored to be expanded outwardly or to increase the space therebetween at a point in time when the electric wires 23 advance from lower ends of the slit portion 2 into the inner space 3d which is larger diametrically than the slit portion 2, whereby the electric wires 23 are spaced apart further so as to be individually disposed on the left- and right-hand sides of the twisting rod 4 without interfering with the twisting rod 4 lying in the midst thereof in an ensured fashion (the twisting rod 4 is inserted between the pair of electric wires 23 in an ensured fashion).
  • the rotor 3 rotates from the state shown in Fig. 4 via the timing belt 8 by the drive of the motor 10, and as is shown in Fig. 5A , the twisting rod 4 rotates together with the rotor so as to twist the pair of electric wires 23.
  • Front and rear ends of the individual electric wires 23 are fixed with front and rear pairs of clamps 24, 25, whereby the electric wires 23 are twisted between the clamps 24, 25 and the twisting rod 4.
  • the slit portion 2 of the rotor 3 is positioned in the upper position at a point in time when the twisting is completed, and the position of the rotor 3 is specified by controlling the motor 10 so that the twisting rod 4 is positioned vertically upwards.
  • the air cylinder 12 is compressed as is shown in Fig. 2 , and the unit main body portion 22 is lowered together with the rod 12a, whereby the resulting twisted pair cable is removed upwards from the slit portion 2.
  • Fig. 5B shows an example of a twisted pair cable 23', and terminals 26 are press attached to both ends of electric wires 23.
  • Fig. 6 shows one form of a twisted pair cable fabrication system to which the electric wires twisting device 1 is applied and a twisted pair cable fabrication method.
  • This fabrication system 27 has electric wire clamps 30, 31 on three planes of front and rear intermittent rotary elements 28, 29, respectively.
  • the clamps 30 at one side (front side) are connected rotatably to corresponding motors 32.
  • the other clamps 31 at the other side (rear side) are horizontal long air cylinders and are withdrawn together with corresponding base plates 34 so as to apply a tension to the electric wires 23.
  • the intermittent rotary elements 28, 29 are supported on struts 35, 36, respectively, so as to rotate intermittently by 1/3 of the circumference by intermittent driving devices 37, 38, respectively.
  • each of the intermittent rotary elements, 28, 29, a near plane constitutes an electric wire setting plane 39, a lower plane an electric wires twisting plane 40, and a far plane an electric wire discharge plane 41.
  • the front and rear intermittent rotary elements 28, 29 are spaced largely in the front-to-rear direction for twisting the electric wires 23.
  • the electric wires twisting unit 1 is disposed on a horizontal base portion (not shown) of the system 27 between the lower electric wire setting planes 40.
  • Slide engagement portions on the base plate 19 ( Fig. 1 ) of the unit 1 are brought into slidable engagement with longitudinal horizontal rails (not shown) on the base portion, whereby the base plate 19 together with the whole of the unit 1 can move along the rails by a longitudinal translation drive unit such as a horizontal ball screw or a rack-and-pinion mechanism.
  • Both the ends of the electric wires 23 are fixedly gripped to the front and rear clamps 30, 31 at the electric wire setting planes 39.
  • the intermittent rotary elements 28, 29 rotate by 1/3 the circumference in a direction indicated by an arrow A
  • the electric wires 23 so set are then move to the lower twisting planes 40.
  • the electric wires twisting device main body portion 22 is raised, whereby the twisting rod 4 enters between the pair of electric wires 23.
  • the electric wires twisting device 1 is withdrawn as near as the rear clamp 39, and in this state, the rotor 3 is rotated by the motor 10.
  • the front clamps 30 are rotated in the same direction at the same speed by the motor 32, and at the same time, the electric wires twisting device 1 advances along the rails of the base portion, whereby the electric wires 23 are twisted between the rear clamps 30 and the rotor 3.
  • the air cylinder 12 is operated to be compressed, and the electric wires twisting device main body 22 is lowered. Then, the resulting twisted pair cable 23' is removed upwards from the rotor 3 while being clamped at the ends by the clamps 30, 31. Following this, the intermittent rotary elements 28, 29 rotate further 1/3 the circumference in the direction indicated by the arrow A, and the twisted pair cable 23' is moved to the discharge planes 41, whereby the twisted pair cable 23' is discharged after a tape is wound around each end thereof.
  • the rotor 3 is raised, and the pair of electric wires 23 are accommodated within the rotor from the slit portion 23. Then, the rotor 3 is lowered after the twisting of the electric wires is completed, and the resulting twisted pair cable 23' is removed from the slit portion 2.
  • the three steps of setting the electric wires, twisting the electric wires together and discharging the resulting twisted pair cable can be executed in succession, thereby making it possible to increase the productivity of twisted pair cables 23'.
  • a separate proposal will be made with respect to the fabrication system 27.
  • the timing belt 8 is used to drive the rotor 3
  • two gearwheels which are spaced apart wider than the width dimension of the slit portion 2 in place of the timing belt 8.
  • the guide members 21 are preferably used to ensure the guide of the electric wires.
  • a configuration can also be adopted in which the electric wires twisting unit 1 is disposed not below but above the electric wires 23, and the electric wires twisting unit 1 is lowered so that the electric wires 23 are inserted into the rotor 3.
  • a configuration can also be adopted in which the slit portion 2 is disposed not upwards but sideways, and the air cylinder 12 is disposed not vertically but horizontally, whereby the pair of electric wires 23 which are parallel vertically are inserted into the slit portion 2 sideways so as to be individually disposed on upper and lower sides of the horizontal twisting rod 4.
  • the electric wires twisting device and the twisted pair cable fabrication method employing the same unit can be made use of, for example, in producing twisted pair cables intended to prevent noise of signal wires of motor vehicles with good efficiency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Wire Processing (AREA)
EP11723727.1A 2010-07-26 2011-05-13 Electric wires twisting device and twisted pair cable fabrication method employing the same Active EP2599092B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010166698A JP5666184B2 (ja) 2010-07-26 2010-07-26 電線対撚りユニットとそれを用いた対撚り線の製造方法
PCT/JP2011/061607 WO2012014554A2 (en) 2010-07-26 2011-05-13 Electric wires twisting device and twisted pair cable fabrication method employing the same

Publications (2)

Publication Number Publication Date
EP2599092A2 EP2599092A2 (en) 2013-06-05
EP2599092B1 true EP2599092B1 (en) 2016-12-14

Family

ID=44583298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11723727.1A Active EP2599092B1 (en) 2010-07-26 2011-05-13 Electric wires twisting device and twisted pair cable fabrication method employing the same

Country Status (5)

Country Link
EP (1) EP2599092B1 (zh)
JP (1) JP5666184B2 (zh)
CN (1) CN103026427B (zh)
MX (1) MX2013001057A (zh)
WO (1) WO2012014554A2 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015190582A1 (ja) * 2014-06-13 2015-12-17 矢崎総業株式会社 ツイスト線製造装置、及び、ツイスト線製造方法
CN107262634B (zh) * 2017-08-04 2018-12-28 泉州台商投资区点优网络科技有限公司 一种电缆线自动扭转设备
DE102018209849A1 (de) * 2018-06-19 2019-12-19 Robert Bosch Gmbh Getriebevorrichtung für Bewehrungsbinder
CN111540541B (zh) * 2020-07-07 2020-12-15 李灼旺 双绞线缆加工设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527599A (en) * 1984-01-04 1985-07-09 John F. Langkau Wire twister
US5605181A (en) * 1995-02-13 1997-02-25 Northrop Grumman Corporation Portable wire twisting tool
JP3409643B2 (ja) * 1997-06-05 2003-05-26 住友電装株式会社 ツイスト電線製造装置
JP2000149684A (ja) * 1998-11-16 2000-05-30 Sumitomo Wiring Syst Ltd ツイスト電線の加工装置
JP2010166698A (ja) 2009-01-15 2010-07-29 Toyota Motor Corp 配線干渉確認方法及びこれに使用する治具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
MX2013001057A (es) 2013-02-21
CN103026427A (zh) 2013-04-03
WO2012014554A2 (en) 2012-02-02
EP2599092A2 (en) 2013-06-05
WO2012014554A3 (en) 2012-03-29
JP5666184B2 (ja) 2015-02-12
CN103026427B (zh) 2015-07-29
JP2012028198A (ja) 2012-02-09

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