EP1460648B1 - Installation pour la fabrication des cables - Google Patents

Installation pour la fabrication des cables Download PDF

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Publication number
EP1460648B1
EP1460648B1 EP04005049A EP04005049A EP1460648B1 EP 1460648 B1 EP1460648 B1 EP 1460648B1 EP 04005049 A EP04005049 A EP 04005049A EP 04005049 A EP04005049 A EP 04005049A EP 1460648 B1 EP1460648 B1 EP 1460648B1
Authority
EP
European Patent Office
Prior art keywords
tube
induction heating
telescopic
cross
movable
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 - Lifetime
Application number
EP04005049A
Other languages
German (de)
English (en)
Other versions
EP1460648A2 (fr
EP1460648A3 (fr
Inventor
Joachim Jung
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.)
Troester GmbH and Co KG
Original Assignee
Troester GmbH and Co KG
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 Troester GmbH and Co KG filed Critical Troester GmbH and Co KG
Publication of EP1460648A2 publication Critical patent/EP1460648A2/fr
Publication of EP1460648A3 publication Critical patent/EP1460648A3/fr
Application granted granted Critical
Publication of EP1460648B1 publication Critical patent/EP1460648B1/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
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion

Definitions

  • the invention relates to a plant for the production of cables. consisting of an extrusion device with one or more extruders and a transverse spray head traversed by the conductor or conductors of the cable, behind which an induction heating device is arranged, with a tube for the crosslinking or vulcanization of the extruded jacket layer being connected downstream of the crosshead and the induction heating device connected downstream thereof, which is assembled from several pieces of pipe, of which the next pipe section to the cross-injection head is an access to the cross-head enabling telescopic tube,
  • the core of the cable consists of one or more copper wires, which are surrounded by insulating and / or semiconductor layers, which are supplied by the extruder or the spray head and are formed in the spray head to the one or more insulating layers enveloping the conductors.
  • the vulcanization tube downstream of the spray head, the freshly prepared cable leaving the spray head must be kept at a temperature above the vulcanization temperature of the extruded layers for a certain time. This is done from the outside through Radiation and through the vulcanization located in the hot, mostly gaseous medium.
  • the vulcanization tube may be a pipe sagging in the manner of a horizontally extending chain line, it may also be a vertically positioned pipe, possibly with a deflection point of 180 °.
  • the core of the cable is heated to a temperature above the vulcanization temperature, so that the heat required for the vulcanization is also entered from the inside into the insulating layers.
  • This heat introduced by induction thus shortens the time required for soaking the entire cross section of the cable to the vulcanization temperature and thus also shortens the overall length of the vulcanization tube. Any shortening of the vulcanization tube increases the efficiency of the cable manufacturing plant, lowers the investment costs not only of the plant, but also the machine hall and simplifies their operation.
  • the invention avoids the disadvantages of the prior art. It is the object of the present invention to increase the efficiency of a cable manufacturing plant by measures that provide a shorter length, allow faster heating of the insulating layers for the purpose of vulcanization or networking and easier operation of the system and beyond the access of the machine operator to Facilitate the spray head when changing tools and cleaning.
  • the invention consists in that the induction heating device connected downstream of the cross-injection head is fixed or mounted in or on the movable tube of the telescopic tube and is movable together with this tube, wherein the movable Pipe of the telescopic tube together with the built-in induction heating system in the immovable tube of the telescopic tube into or überiebbar.
  • This arrangement provides the advantage of a shorter construction possibility for the vulcanization tube and improved access to the spray head for cleaning, maintenance and tool replacement work. Because the induction heating of the cable core begins immediately behind the spray head of the extruder. In addition, the advantage is achieved with a retractable into the fixed tube tube that the spritzkopf worne storage of Vulkanisationsrohres can already be done in a place where the movable tube is located in the fixed tube of the telescopic tube. The location of storage thus moves closer to the spray head without reducing the space required for maintenance on the spray head.
  • the induction heating device occupies the entire length of the movable tube, because thereby the conductor heating can be performed more uniformly and effectively.
  • the induction heating device serves to heat the metallic conductors in the cable so that the cable is heated and heated not only by heat sources acting on the outside of the cable, but also from the inside by the heating of the conductors, which then release their heat to the outside in the cable jacket becomes.
  • the movable tube of the telescopic tube is made of a material that is not electrically conductive or as poor as possible, but which is heat-resistant and pressure-resistant.
  • the movable tube of the telescopic tube is made of a carbon fiber composite.
  • the movable tube of the telescopic tube in which or on which the induction heating device is installed, this has to have an outer diameter which is smaller than the inner diameter of the fixed tube.
  • This system according to the invention can be further optimized in that at least one piece of pipe at any point of the fixed tube is made of a material that is electrically non-conductive or as poor as possible, but which is heat-resistant, and is surrounded by an induction heating system.
  • the induction heating device serves to heat the metallic conductors in the cable so that the cable is heated not only by heat sources acting on the outside of the cable, but also from the inside by the heating of the conductors, which then release their heat to the outside of the cable jacket and heated.
  • This additional induction heating device can be installed at any point of the long fixed tube, where just a re-heating of the cable core is necessary or advantageous. So it can also be installed in a place where the extruded cable sheath is already cooled from the outside.
  • This thermal movement may be important for complete crosslinking or vulcanization of the cable sheath, as well as for faster crosslinking or vulcanization of the cable sheath and thus also for a shortening of the entire system.
  • the crosshead is preceded by an induction heating device, which is preferably set to a temperature value below the vulcanization temperature, while the induction heating device downstream of the crosshead is set to a temperature above the vulcanization temperature lies.
  • this induction heating system is used to heat the metallic conductors in the cable, so that the cable not only heated by externally acting on the cable heat sources, but also from the inside by the heating of the conductors, which then release their heat to the outside in the extruded cable sheath and heated.
  • the induction devices act before and immediately behind the spray head, and this integrated with the sliding part of the telescopic tube, to the technical Erfog a shortening of Vulkanisationsrohres together.
  • the induction heating device upstream of the spray head already brings heat into the cable core before it reaches the spray head and the vulcanization tube at all.
  • the extruded insulating material surrounding the cable core in the spray head which at the time of extrusion is at a temperature just below the vulcanization temperature, is thus not cooled by a lower temperature of the cable core but remains at its temperature.
  • the second induction heating device which surrounds the cable core extruded from the inside by the registered in the cable core induction heat, so that evenly over the cable cross-section extending vulcanization sets in very early, because the second Indutechnischserhitzungsvorrides directly located behind the spray head. This location of the second induction heating system is important for a short design of the vulcanization tube.
  • the non-displaceable pipe section of the telescopic pipe-supporting bearing can be arranged at the upper end of the non-slidable pipe section.
  • the non-displaceable pipe section of the telescopic tube in a location to store, which is not covered by the slide-movable pipe section in a deferred state.
  • the plant for the production of cables has an unwinding drum 11, from which the cable core 1 is unwound, via a cable feed unit 12 and various other other processing devices then after passing an upstream induction heating device 4 for preheating the cable core a transverse spray head 2 is fed, extrude into the extruder, not shown, insulation and semiconductor material, which is formed in the crosshead 2 to a sheath of the cable core 1.
  • the cable formed in this way in the crosshead 2 must now be subjected to vulcanization of its insulating and semiconductor layers applied in the crosshead 2. This vulcanization takes place in the vulcanization tube 3, 6, 7 which adjoins the cross-spray head 2 and which is filled with a hot gaseous or vaporous medium.
  • the part of the vulcanization tube closest to the cross-injection head is the displaceable tube part 6, which can be pushed into the non-displaceable tube part 3 of the telescopic tube 3, 6 (FIGS. 2-5) or pushed onto the non-displaceable tube part 3 of the telescopic tube 3, 6 (FIGS ) can be pushed.
  • the gaseous or vaporous medium in the vulcanization tube carries heat from outside into the extrudate surrounding the cable core 1.
  • the vulcanization is significantly accelerated by the fact that the cable core 1 is heated by induction so that heat from the inside lying in the cable core 1 is introduced to the outside surrounding the cable core 1 extrudate.
  • the displaceable telescopic tube piece 6 can be inserted into the immovable telescopic tube piece 3 when carrying out maintenance work on the transverse spraying head 2.
  • the induction heating device 7 is installed here in the interior of the movable telescopic pipe section 6.
  • the displaceable telescopic pipe section 6 is preceded by a control device 9 and together with the displaceable telescopic pipe section 6 slidably.
  • This control device 9 is used to check the position of the cable core 1 in the sheathing extrudate.
  • the induction heating device 16 is fixed externally on the displaceable telescopic pipe section 6 and the unit telescopic pipe section 6 / induction heating device 16 is inserted into the non-telescoping telescopic pipe section 3.
  • the displaceable telescopic tube piece 6 is in this embodiment of a non-conductive material such as carbon fibers, ceramic, plastic or the like. manufactured.
  • the induction heating device 16 is externally mounted on the displaceable telescopic tube section 15 and the unit telescopic tube section 15 / induction heating device 16 can be pushed over the non-displaceable telescopic tube section 3.
  • the sliding telescopic tube section 15 is also in this embodiment of a non-conductive material such as carbon fibers, ceramic, plastic or the like. manufactured.
  • a further induction heating system 13 is additionally installed, which is able to maintain the vulcanization temperature and still increase.
  • This induction heating device 13 may be installed at any point of the long fixed tube, where just a re-heating of the cable core is necessary or advantageous. So it can also be installed in a place where the extruded cable sheath is already cooled from the outside. Then you get a heat movement from the inside lying in the cable core to the outside. This thermal movement may be important for complete crosslinking or vulcanization of the cable sheath, as well as for faster crosslinking or vulcanization of the cable sheath and thus also for a shortening of the entire system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Insulated Conductors (AREA)

Claims (11)

  1. Installation pour la fabrication de câbles, constituée d'un dispositif d'extrusion avec une ou plusieurs extrudeuses et une tête d'équerre parcourue par le ou les conducteurs du câble, derrière laquelle est disposée une installation de chauffage par induction,
    dans laquelle un tube pour la réticulation ou la vulcanisation de la couche d'enveloppe est placé en aval de l'installation de chauffage par induction placée en aval de la tête d'équerre, lequel tube est constitué de plusieurs segments de tube dont le segment de tube le plus proche de la tête d'équerre est un tube télescopique permettant un accès la tête d'équerre,
    caractérisé an ce que
    l'installation de chauffage par induction (7) montée en aval de la tête d'équerre (2) est insérée ou montée fixement dans ou sur le tube mobile (6) du tube télescopique (3, 6) et peut se déplacer conjointement avec ce tube (6),
    le tube mobile (6) du tube télescopique (3, 6), conjointement avec l'installation de chauffage par induction insérée (7), pouvant être introduit dans ou glissé sur le tube mobile (6) du tube télescopique (3, 6).
  2. Installation selon la revendication 1 caractérisée en ce que la partie fixe (6) du tube télescopique (3, 6) est un tube pendant à la manière d'une chaînette s'étendant sensiblement horizontalement.
  3. Installation selon la revendication 1, caractérisée en ce que l'installation de chauffage par induction s'étend sur toute la longueur du tube mobile.
  4. Installation selon la revendication 1, caractérisée en ce que le tube mobile. (6) du tube télescopique (3, 6) est fabriqué dans un matériau électriquement non-conducteur ou le moins conducteur possible qui est résistant la pression et aux températures élevées.
  5. Installation selon la revendication 4, caractérisée en ce que le tube mobile (6) du tube télescopique (3, 6) est fabriqué dans un matériau composite de fibres de carbone.
  6. Installation selon la revendication 1, caractérisée en ce que le tube mobile (6) du tube télescopique (3, 6) est inséré dans l'installation de chauffage par induction (7) ou est monté sur l'installation de chauffage par induction (7), en ce qu'il présente, conjointement avec l'installation de chauffage par induction (7), un diamètre extérieur qui est plus petit que le diamètre intérieur du tube fixe (3).
  7. Installation selon la revendication 1, caractérisée en ce que le tube mobile (6) du tube télescopique (3, 6), sur la face extérieure duquel est montée l'installation de chauffage par induction (7), présente un diamètre intérieur qui est plus grand que le diamètre extérieur du tube fixe (3).
  8. Installation selon la revendication 1, caractérisée en ce qu'au moins un segment de tube du tube fixe (3) à n'importe quel emplacement du tube fixe (3) est fabriqué dans un matériau électriquement non-conducteur ou le mains conducteur possible, mais qui est résistant à la pression et aux températures élevées, et est entouré par une installation de chauffage par induction (13).
  9. Installation, selon la revendication 1, caractérisée en ce qu'une installation de chauffage par induction (4) est placée en amont de la tête d'équerre (2), en ce que l'installation de chauffage par induction (4) placée en amont de la tête d'équerre (2) est réglée, de préférence, pour le chauffage à une valeur de température qui est inférieure à la température de vulcanisation alors que l'installation de chauffage par induction placée en aval de la tête d'équerre (2) est réglée pour le chauffage à une valeur de température qui est supérieure à la température de vulcanisation.
  10. Installation selon la revendication 1, caractérisée en ce que, dans le cas d'une installation avec un segment de tube mobile (6) pouvant être introduit dans le segment de tube fixe (3), le segment de tube fixe (3) du tube télescopique (3, 6) est muni d'un palier (10) dans lequel est logée la partie supérieure de l'ensemble du tube de vulcanisation.
  11. Installation selon la revendication 1, caractérisée en ce que, dans le cas d'une installation avec un segment de tube mobile (14) pouvant être glissé sur le segment de tube fixe (3), le segment de tube fixe (3) du tube télescopique (3, 6) est muni, à un emplacement qui n'est pas recouvert par le segment de tube mobile pouvant être glissé (14) lorsqu'il est glissé, d'un palier (10) dans lequel est logée la partie supérieure de l'ensemble du tube de vulcanisation.
EP04005049A 2003-03-17 2004-03-04 Installation pour la fabrication des cables Expired - Lifetime EP1460648B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10311512A DE10311512B3 (de) 2003-03-17 2003-03-17 Anlage zur Herstellung von Kabeln
DE10311512 2003-03-17

Publications (3)

Publication Number Publication Date
EP1460648A2 EP1460648A2 (fr) 2004-09-22
EP1460648A3 EP1460648A3 (fr) 2006-06-07
EP1460648B1 true EP1460648B1 (fr) 2007-08-29

Family

ID=32797930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005049A Expired - Lifetime EP1460648B1 (fr) 2003-03-17 2004-03-04 Installation pour la fabrication des cables

Country Status (5)

Country Link
US (1) US7168934B2 (fr)
EP (1) EP1460648B1 (fr)
AT (1) ATE371934T1 (fr)
DE (2) DE10311512B3 (fr)
ES (1) ES2290568T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014010123A1 (de) 2014-07-09 2016-01-14 Leoni Kabel Holding Gmbh Vernetzbare Zusammensetzung
EP2755211B1 (fr) 2013-01-09 2019-03-06 Maillefer S.A. Procédé et agencement pour réticuler ou vulcaniser un élément allongé

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DE10344681B4 (de) * 2003-09-25 2006-10-19 Maschinenbau Scholz Gmbh & Co Kg Anlage zur Herstellung von Kabeln mit speziell ausgebildetem Teleskoprohr
DE102004015801B4 (de) * 2004-03-29 2006-08-31 Maschinenbau-Scholz Gmbh & Co. Kg Anlage zur Herstellung von Kabeln mit speziell ausgebildetem Teleskoprohr
FI20055014A0 (fi) * 2005-01-10 2005-01-10 Maillefer Sa Järjestely ja menetelmä sähköjohtimen lämmittämiseksi
US7910045B2 (en) * 2005-01-10 2011-03-22 Maillefer S.A. Arrangement and method for heating an electrical conductor
CN101447257B (zh) * 2008-12-19 2010-09-29 昆明电缆股份有限公司 高品质橡套软电缆生产方法
TWI688972B (zh) * 2015-02-18 2020-03-21 瑞士商美莉佛公司 供交聯或硫化細長元件用的方法及設備
KR102069353B1 (ko) * 2018-02-26 2020-01-22 (주)일흥 와류전류를 이용한 용접 케이블용 가류 시스템
DE102020103687B4 (de) * 2020-02-12 2022-05-05 Battenfeld-Cincinnati Germany Gmbh Einrichtung zum Anfahren eines Extrusionsprozesses
CN112797378B (zh) * 2020-12-28 2022-08-23 欧普照明股份有限公司 一种杆状导线的制造方法及灯具的制造方法
CN113696387B (zh) * 2021-09-01 2023-08-22 国网河南省电力公司镇平县供电公司 一种交联聚乙烯绝缘电力电缆生产用交联硫化装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2755211B1 (fr) 2013-01-09 2019-03-06 Maillefer S.A. Procédé et agencement pour réticuler ou vulcaniser un élément allongé
DE102014010123A1 (de) 2014-07-09 2016-01-14 Leoni Kabel Holding Gmbh Vernetzbare Zusammensetzung

Also Published As

Publication number Publication date
EP1460648A2 (fr) 2004-09-22
US20040234640A1 (en) 2004-11-25
EP1460648A3 (fr) 2006-06-07
ATE371934T1 (de) 2007-09-15
ES2290568T3 (es) 2008-02-16
US7168934B2 (en) 2007-01-30
DE10311512B3 (de) 2004-11-04
DE502004004785D1 (de) 2007-10-11

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