EP0938103A2 - Dispositif de fabrication de câbles électriques flexibles - Google Patents

Dispositif de fabrication de câbles électriques flexibles Download PDF

Info

Publication number
EP0938103A2
EP0938103A2 EP99890035A EP99890035A EP0938103A2 EP 0938103 A2 EP0938103 A2 EP 0938103A2 EP 99890035 A EP99890035 A EP 99890035A EP 99890035 A EP99890035 A EP 99890035A EP 0938103 A2 EP0938103 A2 EP 0938103A2
Authority
EP
European Patent Office
Prior art keywords
length
conveyor
conductors
measuring device
jacket extrusion
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
EP99890035A
Other languages
German (de)
English (en)
Other versions
EP0938103A3 (fr
EP0938103B1 (fr
Inventor
Gerhard Seibert
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.)
Rosendahl Maschinen GmbH
Original Assignee
Rosendahl Maschinen GmbH
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 Rosendahl Maschinen GmbH filed Critical Rosendahl Maschinen GmbH
Priority to AT99890035T priority Critical patent/ATE292841T1/de
Publication of EP0938103A2 publication Critical patent/EP0938103A2/fr
Publication of EP0938103A3 publication Critical patent/EP0938103A3/fr
Application granted granted Critical
Publication of EP0938103B1 publication Critical patent/EP0938103B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01B13/02—Stranding-up
    • H01B13/0292—After-treatment

Definitions

  • the invention relates to a device with the features of the preamble of claim 1.
  • the invention relates in particular to essentially elastic conductors, in which the elastic change in shape when stranded the plastic shape change predominates.
  • the problem with ladders is that the ladder at the turning point, d. H. at the point at which the direction of stranding changed will tend to resiliently deform, causing the Turning point gets longer.
  • Long turning points have the disadvantage that the pipes in this area are stiffer than in those areas which are between the turning points, so that the ladder in The required number of bending cycles often do not reach.
  • the invention is therefore based on the object of a device Generic kind so that an extension of the Turning points beyond an unacceptable amount is prevented.
  • the speed of the conveyor can changed and the conveyor speed of the trigger device be kept constant or vice versa.
  • the device according to the invention is designed such that the length of free running sections of the stranded conductors between the conveyor and the jacket extrusion device not is greater than 4 times the average lay length.
  • the average lay length between two turning points understood the stranding, with short-term changes in the Lay length or speed during stranding (in practice sometimes an accelerated so-called shortly before the turning point Hold hit performed, in which the stroke length shortened briefly so that the turning point can also be shortened) except Consider, so that the average lay length usually in Middle area between two turning points directly measured or determined can be.
  • the permissible distance between the conveyor, the tension measuring device and the jacket extrusion device, d. H. the length free-running conductor sections between these points depends on several factors, such as the elasticity of the conductor, the number of Conductor, the tensile force acting in the area of the tension measuring device and the permissible length of the turning point and is usually below 4 times the lay length, this factor, i.e. H. the Relationship between free length and lay length, depending on the specific Requirement will usually be between 1 and 4.
  • preferred values are the factor 4 for Conductor with a relatively high plastic bending behavior, the Factor 3 for conductors with a predominantly elastic bending behavior and higher demands on the turning point, d. H. shorter length the turning point, and 2 for a consistently elastic bending behavior the leader and a relatively short turning point.
  • a flexible, electrical Line 1 made of essentially elastic conductors 2 an SZ stranding machine 4, a conveyor 5, a jacket extrusion device 6, a cooling section 7 and a trigger device 8.
  • the conductors 2 are individually pulled off from drums 9 and the completed line 1 is wound onto a storage device 10.
  • the conductors 2, as in FIG. 5, consist of a three-wire line is shown from a z. B. finely stranded conductor core 2a, which is surrounded by an insulating sleeve 3.
  • On the head 2 is in extruded a plastic jacket 11 onto the jacket extrusion device 6, which is cooled or hardened in the subsequent cooling section 7 becomes.
  • SZ stranding i.e. H. Stranding of conductor 2 with alternating
  • the direction of rotation or lay is done with a conventional SZ stranding machine 4, as is well known in the art can be constructed and is therefore not described in detail here.
  • a conveyor 5 in the illustrated embodiment is designed as a tape take-off. Any other form of conveyor, e.g. B. as a disc train, but is also conceivable.
  • the conveyor 5 acts on the one hand as a strain relief for the Stranding in the subsequent section of the device and on the other hand as a torsion lock that prevents the SZ stranding after the SZ stranding machine 4.
  • a tension measuring device 12 provided, according to which the SZ stranded conductors in the jacket extrusion device 6 enter where a plastic jacket is extruded, which hardens in the cooling section 7.
  • an extraction device 8 is e.g. in shape a tape take-off provided which the stranded conductor 2 through the jacket extrusion device 6 and then with extruded Sheath 11 pulls through the cooling section 7.
  • the trigger device 8 is the completed line 1 on the storage device 10 wound up.
  • the tension measuring device 12 is between the conveyor device 5 and the jacket extrusion device 6 intended.
  • the tension measuring device 12 is via one in the drawings Control, not shown, with that in the drawings as well Drive of the conveyor 5, not shown, is connected and controls it so that the train on the conductor 2 in this area specified upper and lower limit values neither exceed nor falls below.
  • the tension measuring device 12 points in that shown in FIGS. 1, 2 and 4 Embodiments of a pulley 13, which the stranded conductor 2 from its extended position 14 by a few degrees distracts.
  • tension measuring device 12 with a deflection roller 13 or how shown in Fig. 3, with three guide rollers 18, 20 to perform can also be any other suitable form of tension measuring device, e.g. B. in the form of two rolls or strip take-offs rolling on each other, between which the conductors 2 are carried out.
  • SL is the lay length, d. H. those Length at which conductor 2 is stranded through 360 °.
  • WL it is Turning length denotes the area in which the The slope of the conductor 2 is greater than in the area of the lay length SL.
  • the conductor 2 is stretched more or is parallel to Longitudinal axis 15 of the stranding, whereby one of several conductors 2 stranded line 1 has a higher rigidity in this area, than in the area of ideal stranding next to the turning point or turning length WL with an average lay length SL.
  • the length A of the free running Conductor sections must be the same or shorter than the turn length WL should, since this prevents the stranding in Range of the turning length WL could unacceptably turn up.
  • the ratio of lay length SL to length A is within the Invention according to the respective requirements essentially are between 1: 1 and 1: 4, but these values in special cases can also be exceeded, in particular below, without the To leave the scope of the present invention. In particular are the ratios 1: 1.5, 1: 2, 1: 2.5, 1: 3, 1: 3.5 and 1: 4 preferred Conditions within the scope of the present invention.
  • the tension measuring device 12 is in one Embodiment designed as a deflection roller 13 which in the direction the double arrow 16 against the force of a compression spring 17 is mounted, the amount of displacement of the pulley 13th in the direction of the double arrow 16 a measure of the in the stranding the conductor 2 is the tractive force.
  • FIG. 3 shows an embodiment of a tension measuring device 12, which a stationary guide pulley 18 and two Deflection rollers 20 movably mounted on a common support 19 having.
  • the deflection rollers 20 lie from that of the deflection roller 18 opposite side to the stranded leads 2, see above that the conductor 2 in a serpentine shape between the deflection rollers 18 and 20 be passed through.
  • the carrier 19 is against the force of one Spring 17 on a guide 21 substantially transversely to the longitudinal extent the stranded conductor 2 slidable, the extent of Displacement in the direction of the double arrow 16 is a measure of the tension in the stranded conductors 2.
  • the free lengths A between the conveyor 5, the deflection rollers 18 and 20 and the jacket extrusion device 6 is located each below the limit values defined above.
  • the one shown in Fig. 3 Embodiment stands out due to the relatively large Goods content in the form of the relatively long, serpentine through the deflection rollers 18, 20 stranded conductors 2 a particularly precise measurement of the tensile force in the conductors 2.
  • this embodiment is particularly suitable if the Distance between the conveyor 5 and the jacket extrusion device 6 is relatively large because the length of the stranded conductor 2 is interrupted several times in this area, causing the Length A of the free-running conductor sections is limited.
  • Fig. 4 is an embodiment of a tension measuring device 12 shown, in which the deflection roller 13 via a Stamp 22 acts on a load cell 23, from the measured Force and the preferably equal deflection angles ⁇ and ⁇ between the stranded conductors 2 and their theoretically stretched Course 14 determines the tensile force in the stranded conductors 2 can be.
  • spring 17 shown in FIGS. 2 and 3 can also any other form of device with which the guide rollers 13 and 18 against the conductor 2 are provided. As well can also be provided only two or more than three pulleys be applied to the conductors 2 from opposite sides.
  • tension measuring device 12 on the one hand a very exact measurement of the tensile force in the stranded Ladders 2 and on the other hand a limitation on the length A of the free running Conductor sections between the conveyor 5 and the Jacket extrusion device 6 is possible, which overall contributes to that the turning length WL can be kept short, which is on the elastic properties of those produced with this device Leader has a very positive effect.
  • an embodiment of the invention can be as follows to be discribed:
  • a device for producing flexible electrical lines 1 consisting of essentially elastic conductors 2 has an SZ stranding machine 4, which the conductor 2 with a medium lay length SL stranded, on which a conveyor 5, a jacket extrusion device 6 and a trigger device 8 follow. Between the Conveyor 5 and the jacket extrusion device 6 is one Tension measuring device 12 is arranged via a controller for speed control is connected to the conveyor 5. The length A of free running sections of the conductor 2 between the Conveyor 5, the tension measuring device 12, both as torsion locks act, and the jacket extrusion device 6 is not greater than 4 times the average lay length SL. Through the exact traction measurement and the limitation of length A free running Sections of the conductor 2 in the area between the conveyor 5 and the jacket extrusion device 6 is an untwisting of the SZ stranding the conductor 2 largely prevented in this area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Insulated Conductors (AREA)
  • Wire Processing (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP99890035A 1998-02-20 1999-02-02 Dispositif de fabrication de câbles électriques flexibles Expired - Lifetime EP0938103B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT99890035T ATE292841T1 (de) 1998-02-20 1999-02-02 Vorrichtung zum herstellen flexibler elektrischer leitungen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT30698 1998-02-20
AT0030698A AT405774B (de) 1998-02-20 1998-02-20 Vorrichtung zum herstellen flexibler, elektrischer leitungen

Publications (3)

Publication Number Publication Date
EP0938103A2 true EP0938103A2 (fr) 1999-08-25
EP0938103A3 EP0938103A3 (fr) 2000-11-08
EP0938103B1 EP0938103B1 (fr) 2005-04-06

Family

ID=3487065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99890035A Expired - Lifetime EP0938103B1 (fr) 1998-02-20 1999-02-02 Dispositif de fabrication de câbles électriques flexibles

Country Status (3)

Country Link
EP (1) EP0938103B1 (fr)
AT (2) AT405774B (fr)
DE (1) DE59911860D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2296461A1 (es) * 2005-07-26 2008-04-16 Universidad De Vigo Procedimiento de prediccion y control de la capacidad de un cable de par trenzado con drenaje, apantallado con lamina de doble capa y con cubierta protectora, mediante la variacion del paso del trenzado.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855593C2 (de) * 1978-12-22 1983-12-15 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Vorrichtung zum reversierenden Verseilen schwer verformbarer Starkstromkabeladern
DE19605491A1 (de) * 1996-02-14 1997-08-21 Siemens Ag Verfahren sowie Vorrichtung zur SZ-Verseilung langgestreckter Verseilelemente

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2296461A1 (es) * 2005-07-26 2008-04-16 Universidad De Vigo Procedimiento de prediccion y control de la capacidad de un cable de par trenzado con drenaje, apantallado con lamina de doble capa y con cubierta protectora, mediante la variacion del paso del trenzado.

Also Published As

Publication number Publication date
EP0938103A3 (fr) 2000-11-08
AT405774B (de) 1999-11-25
DE59911860D1 (de) 2005-05-12
ATE292841T1 (de) 2005-04-15
EP0938103B1 (fr) 2005-04-06
ATA30698A (de) 1999-03-15

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