WO2001075909A1 - Verfahren und vorrichtung zur herstellung eines isolierten kabels - Google Patents
Verfahren und vorrichtung zur herstellung eines isolierten kabels Download PDFInfo
- Publication number
- WO2001075909A1 WO2001075909A1 PCT/EP2001/003109 EP0103109W WO0175909A1 WO 2001075909 A1 WO2001075909 A1 WO 2001075909A1 EP 0103109 W EP0103109 W EP 0103109W WO 0175909 A1 WO0175909 A1 WO 0175909A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- cable
- winding
- receiving device
- treatment
- Prior art date
Links
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
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/22—Constructional details collapsible; with removable parts
- B65H75/2245—Constructional details collapsible; with removable parts connecting flange to hub
-
- 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
-
- 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
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- 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
- H01B13/0036—Details
Definitions
- the present invention relates to a method and a device for producing an insulated cable.
- the invention also relates to the cable produced by the method and the device according to the invention.
- a cable in the sense of the present invention is to be understood as an electrical or optical conductor which is covered with an insulation or another coating.
- This conductor can consist of any material, materials made of copper and the like are preferred.
- the conductor can consist of a single wire, but it can also consist of many wires and in particular of thin stranded wires.
- a cable in the sense of the present invention can also consist of a plurality of strands insulated from one another, the corresponding individual cables then being able to be arranged in any configuration with respect to one another, eg B.
- Polymers that are subjected to a crosslinking process after the actual extrusion process have particularly favorable properties in this regard.
- Cross-linking in particular, leads to an improved temperature resistance of the material.
- Crosslinkable polymer materials are known in the prior art and are described in numerous documents. Examples of such documents, some of which also directly describe polymers suitable for cable insulation, are:
- the second method is the CV method, where CV is the abbreviation for "continuous vulcanization". This tube-steam process has so far been limited to applications in the thin cable area.
- the cable is sheathed in a continuous process with a polymeric insulating material. A cable bundle is then produced.
- This cable bundle is created by winding the cable into a bundle using a suitable winding device.
- the Wrapping into a bundle can be done with different bundle holding devices. Winding on a spool is particularly preferred; but also winding m a changing barrel. Before further processing, depending on the winding process and the container receiving device used, the latter can be separated from the container, so that a package without a coil is then further processed.
- a winding auxiliary device e.g. B. a frustoconical steel coil or a steel core
- the container is removed after winding from this winding auxiliary device, and only has support devices, such as. B. a thin coil core or the like, which supports the container during further processing and possibly also when pulling.
- the container can be subjected to a predetermined rest period which is dependent on the polymer material.
- the container is heat-treated in the following process step.
- heat treatment is to be understood in particular to mean a treatment in which the temperature of the container is increased. However, it is also possible within the meaning of the invention, if this is advantageous in relation to the polymer material used or the other process conditions, to carry out the heat treatment as a heat-reducing treatment, ie as cooling. In the following, however, the term “heat treatment” is always used uniformly, even if cooling treatment is meant.
- the heat transfer can take place by direct contact of a medium to be heated with the container, by convective heat transfer or by heat transfer by radiation.
- Heat transfer through a heat-containing medium in particular a liquid medium such as water and the like, a gaseous medium such as steam, which can be saturated or unsaturated, or else air or another gas, is particularly preferred.
- water or water bath and the like is used as a synonym for any liquid bath.
- a water bath can therefore be filled with a liquid other than just water.
- water in this sense also includes water which is provided with additives which promote crosslinking, or else additives which simplify and / or accelerate the drying process or the subsequent processing processes.
- steam is to be understood to mean all essentially gaseous fluids, that is to say not only steam itself, but also, unless expressly mentioned, air and all types of gas / water / air mixtures.
- medium is to be understood as a generic term for the terms water in the sense of the present invention and steam in the sense of the present invention.
- a medium can therefore be any liquid as well as any gas.
- the method according to the invention has the advantage that the heat treatment takes place at a time when a bundle has already been made from the cable. Especially when you know what It is particularly preferred that the shape of the container used for the heat treatment, which is also intended for the subsequent further processing or use of the cable, reduces the additional effort required by the heat treatment to a minimum.
- the heat treatment device is stationary, e.g. B. arranged immediately after the extrusion process.
- the heat treatment device in a mobile manner.
- it can be used as a heat chamber or as several heat chambers on a transport device, i. H. be arranged on a truck, a railway wagon or the like, so that the networking takes place on the transport route which is in any case incurred between the manufacturer and the point of consumption, so that no additional time is required for this.
- the container must be dried after the heat treatment.
- drying process in air, but an additional drying process can be carried out, in which dry air is supplied to the container at ambient temperature or, preferably, at an elevated temperature, at which the container is dried.
- the drying process is preferably carried out in a vacuum chamber.
- the container is introduced into a chamber, which is then evacuated or connected in some other way to a vacuum source. The vacuum reduces the vapor pressure, which leads to the evaporation of the liquid in the container and thus to very rapid drying.
- the type of container and the type of container receiving device can be designed in different ways.
- the water bath is particularly suitable for heat transfer.
- the individual containers are transported to a water bath that is able to hold one or more containers, the container is inserted manually or preferably fully automatically into the liquid bath with an appropriate handling device and removed from the water bath after the predetermined time.
- the process can also be carried out in reverse, so that the liquid bath or the trough or troughs forming it are initially without liquid, that the container is then introduced, and that the liquid is then finally supplied and, at the end of this process step, is removed from the bath again.
- Coilless containers are particularly suitable for this type of process, but also cables wound on plastic drums and the like.
- the invention proposes several preferred procedures:
- means which cause the medium to flow through the container are connected to the container and in particular are part of the container receiving device.
- the container has a hollow cylindrical, conical or other shaped winding core, which is sealed from the environment.
- the flow behavior can be very precisely determined by the selection of the container parameters and the number, shape and size of the openings. be chosen.
- Is z. B. uses a conical winding spool as a container receiving device, one will provide fewer openings in the area in which there are fewer winding layers than in other areas.
- an additional aid is used to ensure an optimal flow of the medium through the container.
- This can e.g. B. be a sealed cylindrical or conical device which is pushed into the interior of a coil-free container or onto which the coil-free container is placed.
- openings are provided in a corresponding manner, through which the medium can flow into the container.
- the two method modes described above are combined with one another, i. H. that the container receiving device is already designed so that it is particularly suitable for flowing through the medium.
- devices are used to improve the flow.
- a corresponding pressure difference between flow inflow and flow outflow can be done in that an overpressure of the flowing medium is generated within the winding core of the container and ambient pressure prevails in the outer region of the container. Conversely, this can be achieved in that in the outer area of the container, i. H. when the container is placed in a chamber, there is overpressure, and inside the container, in particular in the winding core, ambient pressure.
- the pressure difference can also be achieved by supplying the medium with ambient pressure or overpressure the other side of the flow is under pressure. This makes it possible, for. B. by vacuum in the winding core to suck the medium from the outside through the container.
- the flow through the container can also be achieved in that corresponding inflow and / or outflow openings are provided in the flanges.
- the flowing medium z. B. through openings in one flange of the container and discharged through openings in the other flange of the container.
- the flow movement is achieved by a relative movement between the container and the flowing medium.
- the relative movement can be generated by the medium flowing past the container in a channel adapted to the container or with a plurality of channels in such a way that an optimal penetration of the container with the medium is achieved.
- the container itself can be moved relative to the medium. This is e.g. B. achieved by the container is arranged eccentrically on a rotating arrangement. If the arrangement rotates, the container is moved relative to the medium. In addition, it can also be provided that the container itself rotates.
- This method can also be combined with the other methods, i. H. that z. B. air is blown through the container during this resistance heating in order to avoid heat accumulation of the winding layers located closer to the winding core.
- control devices can be expediently provided which determine the uniform heating of the winding material in the container.
- sensors can be arranged at different points in the winding material, which detect the temperature prevailing there. It is also possible to record the temperature of the supplied and the removed medium in order to determine the heat absorption of the coil from the temperature difference.
- thermocouples thermocouples
- temperature-sensitive resistors thermocouples
- electrical leads that lead to a verb parts of the bobbin take-up direction.
- B. m of the heat treatment device to automatically couple to a control device that measures the temperature at selected points of the coil receiving device.
- the coil receiving device can also have projections that protrude m the winding material, z. B. in a conventional coil, a central coil flange on which such temperature sensors are arranged.
- a container is used which is arranged on a container receiving device.
- this container receiving device is designed as a divisible plastic spool which has a cylindrical, but preferably a conical inner winding core.
- Such a winding spool is such.
- An advantageous method for winding cables into a bundle on such a winding spool is the subject of the European patent EP 0 334 211 B1 as well as of the US patent US 5,255,863.
- the winding spool described there has the advantage, in particular in the case of a conical design, that the cable is wound onto this winding spool, the winding spool is then transported to the consumer, and the cable is pulled there from the winding spool, for.
- the winding spool disassembled, which is done by removing the flange at the end of the winding core with the smaller diameter, stacking winding cores and flanges and thus sending back to the cable manufacturer in a space-saving and lightweight manner.
- seals can be made in an additional device that is part of the heat treatment device, or it can also be part of the coil.
- the flange In winding devices, where this is not the case, in which, for. B. centering on the outer circumference of the flange, the flange can be carried out over the entire surface, and then has a circumferential seal, for. B. in the form of an O-Rmgs, with which it seals against the winding core
- the method according to the invention has considerable advantages over the prior art.
- the cable manufacturing process is usually an ongoing process.
- the crosslinking of polymeric materials requires the use of a certain temperature over a certain period of time, which is long in relation to the cable production.
- cable production can take place as before.
- the cable is then wound up in a conventional manner so that this part of the cable manufacturing process need not be changed.
- the heat treatment required for the crosslinking of the polymer material takes place in a subsequent process step. Since networking can take place directly in the container, it is not necessary to provide devices with which the cable has to be unwound and rewound. Since the container is also supplied in the form of the heat treatment in which it is later also supplied to the consumer, no additional process steps beyond the heat treatment itself are required to bring the stranded cable into a form suitable for the consumer.
- the method can therefore be used particularly economically and in particular allows cost-effective replacement of non-environmentally compatible insulating materials.
- the single figure shows a cross section through a container receiving device, which can preferably be used for the method according to the invention.
- the winding spool shown schematically in the figure essentially corresponds to the winding spool described in European patent EP 0 672 016 B1.
- the winding spool is designed to be rotationally symmetrical to a rotation axis 20.
- winding core 5 which is conical and which is integrally connected to an upper flange 3 (in the illustration according to the figure).
- a flange 7 is provided, which, as the aforementioned patent describes, is detachably connected to the winding core.
- a circumferential, downward-pointing edge 8 is formed on the flange 7, with which the flange is received in a winding device or stands up during transport on a pallet or on a spool located below it.
- a plurality of openings 22 are provided in the winding core itself, indicated schematically.
- a sealing attachment 1 On the winding core, a sealing attachment 1 is placed, which has an upper plate-shaped part and an adjoining conical extension la.
- a rubber seal preferably an O-ring seal 2 is arranged all around the conical neck.
- the sealing attachment 1 can be connected to the winding core by a clamping or connecting device (not shown). But it is also possible to manufacture the sealing attachment 1 from a material with a higher weight, so that it sticks firmly in the winding core due to its own weight and the friction 2 generated by the sealing ring.
- a sealing plate 12 In the lower area of the winding spool, a sealing plate 12 is shown, which also has a circumferential rubber seal, for. B. has an O-Rmg seal. This seal is dimensioned such that it comes into sealing contact with the circumferential rings 8 of the flange when the winding spool is placed on the sealing plate 12.
- the sealing plate 12 also has a conical extension 14, which is intended to be inserted into the conical extension 9 of the removable flange 7.
- the winding spool is supplied to the cable manufacturer, a large number of winding cores 5 being stacked one inside the other and also a large number of flange plates 7, which corresponds to the number of stacked winding cores.
- the flange 7 is, as described in the aforementioned patent, placed on the winding core and preferably locked firmly with it.
- the winding core with the flange is then introduced into a winding device and a cable with a crosslinkable polymer is wound onto the winding spool.
- the cable is schematically indicated at 6 on the right side of the illustration in the figure.
- the winding spool is then removed from the winding device and the sealing insert 1 is placed manually or automatically and the container, consisting of the winding core and flange 7, is placed on the sealing plate 12. This creates a sealed connection of the interior of the winding core, which is connected by the flow connection 16 to a pressure and / or vacuum source.
- a medium can be introduced into the winding core for heat treatment, either warm air, steam or water. This medium is pressed into the container through the openings and can escape to the outside.
- the container in a water bath as a whole, in which case the sealing plates 12 are then preferably already arranged in a fixed or displaceable manner.
- the flow connections 16 are then connected to a vacuum source, and water, steam or warm air is drawn in through the container and the openings and discharged through the openings 16.
- the z. B. can each have a size of 3 x 3 m.
- the pools are higher than the coil height.
- the first pool In a first operating state, the first pool is initially filled with water at approx. 90 to 95 ° C, while the second pool is without water.
- the water is preferably fed into the winding core via the feed openings 16 of the sealing plate 12 in order to achieve a controlled flow through the container.
- the reverse version is also possible, which means that water is sucked into the container.
- No water is initially provided in the second pool.
- hot air is drawn through the coil or blown through the coil to dry the container.
- pool 1 and pool 2 In a next operating state, the functions of pool 1 and pool 2 will be exchanged.
- the coils dried in the pool 2 are removed from the pool and new, untreated coils are inserted.
- the water from basin 1 is passed into basin 2 and the coils in basin 1 are dried with warm air.
- the advantage of this method is that the coils only have to be inserted into the basin once.
- This introduction can be done manually, with a crane, or preferably with a handling device, a conveyor belt and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01936099A EP1269487A1 (de) | 2000-04-03 | 2001-03-19 | Verfahren und vorrichtung zur herstellung eines isolierten kabels |
US10/239,936 US20040032045A1 (en) | 2000-04-03 | 2001-03-19 | Method and device for producing an insulated cable |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10016518A DE10016518B4 (de) | 2000-04-03 | 2000-04-03 | Verfahren und Vorrichtung zur Herstellung eines isolierten Kabels |
DE10016518.4 | 2000-04-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001075909A1 true WO2001075909A1 (de) | 2001-10-11 |
WO2001075909A8 WO2001075909A8 (de) | 2002-04-04 |
Family
ID=7637426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/003109 WO2001075909A1 (de) | 2000-04-03 | 2001-03-19 | Verfahren und vorrichtung zur herstellung eines isolierten kabels |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040032045A1 (de) |
EP (1) | EP1269487A1 (de) |
DE (1) | DE10016518B4 (de) |
WO (1) | WO2001075909A1 (de) |
ZA (1) | ZA200207475B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009022137A2 (en) * | 2007-08-13 | 2009-02-19 | Checkmate Limited | Fall arrest block |
US20140312159A1 (en) * | 2011-01-21 | 2014-10-23 | Maschinenfabrik Niehoff Gmbh & Co.Kg | Spool for receiving winding material and spool part system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005070802A1 (de) * | 2004-01-26 | 2005-08-04 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Wickelspule für ein gebinde, sowie verfahren zu dessen herstellung und abwicklung |
US9456718B1 (en) * | 2013-12-31 | 2016-10-04 | Patricia Myatt | Paper towel and toilet paper portable dispenser |
CN210272067U (zh) * | 2019-08-15 | 2020-04-07 | 捷普电子(新加坡)公司 | 用于线圈绕线机的治具 |
CN116759159B (zh) * | 2023-07-22 | 2023-12-05 | 浙江吴越电缆有限公司 | 一种电缆生产成型设备 |
Citations (3)
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DE3742148C1 (de) * | 1987-12-09 | 1989-01-26 | Siemens Ag | Vorrichtung und Verfahren zum automatischen Fertigen von Wendelschnueren |
EP0334211A1 (de) * | 1988-03-22 | 1989-09-27 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Verfahren zur Herstellung eines spulenlosen Gebindes |
WO1994013569A1 (de) * | 1992-12-04 | 1994-06-23 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Verfahren und vorrichtung zur herstellung eines gebindes mit langgestrecktem wickelgut |
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DE735365C (de) * | 1937-04-13 | 1943-05-13 | Siemens Ag | Verfahren und Vorrichtung zum Trocknen oder Vulkanisieren der Isolierung elektrischer Leitungen oder Kabel in einem elektrischen Hochfrequenzfeld |
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US3412354A (en) * | 1963-02-18 | 1968-11-19 | Westinghouse Electric Corp | Adhesive coated electrical conductors |
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2000
- 2000-04-03 DE DE10016518A patent/DE10016518B4/de not_active Expired - Fee Related
-
2001
- 2001-03-19 EP EP01936099A patent/EP1269487A1/de not_active Withdrawn
- 2001-03-19 WO PCT/EP2001/003109 patent/WO2001075909A1/de active Application Filing
- 2001-03-19 US US10/239,936 patent/US20040032045A1/en not_active Abandoned
-
2002
- 2002-09-18 ZA ZA200207475A patent/ZA200207475B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3742148C1 (de) * | 1987-12-09 | 1989-01-26 | Siemens Ag | Vorrichtung und Verfahren zum automatischen Fertigen von Wendelschnueren |
EP0334211A1 (de) * | 1988-03-22 | 1989-09-27 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Verfahren zur Herstellung eines spulenlosen Gebindes |
WO1994013569A1 (de) * | 1992-12-04 | 1994-06-23 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Verfahren und vorrichtung zur herstellung eines gebindes mit langgestrecktem wickelgut |
US5593108A (en) * | 1992-12-04 | 1997-01-14 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Bobbin for receiving elongated winding material |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009022137A2 (en) * | 2007-08-13 | 2009-02-19 | Checkmate Limited | Fall arrest block |
WO2009022137A3 (en) * | 2007-08-13 | 2009-04-09 | Checkmate Ltd | Fall arrest block |
US8991556B2 (en) | 2007-08-13 | 2015-03-31 | Checkmate Limited | Fall arrest block |
US20140312159A1 (en) * | 2011-01-21 | 2014-10-23 | Maschinenfabrik Niehoff Gmbh & Co.Kg | Spool for receiving winding material and spool part system |
Also Published As
Publication number | Publication date |
---|---|
ZA200207475B (en) | 2003-08-07 |
EP1269487A1 (de) | 2003-01-02 |
WO2001075909A8 (de) | 2002-04-04 |
DE10016518B4 (de) | 2009-07-02 |
DE10016518A1 (de) | 2001-10-11 |
US20040032045A1 (en) | 2004-02-19 |
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