EP1336182B1 - Method for producing flat cables - Google Patents
Method for producing flat cables Download PDFInfo
- Publication number
- EP1336182B1 EP1336182B1 EP01995632A EP01995632A EP1336182B1 EP 1336182 B1 EP1336182 B1 EP 1336182B1 EP 01995632 A EP01995632 A EP 01995632A EP 01995632 A EP01995632 A EP 01995632A EP 1336182 B1 EP1336182 B1 EP 1336182B1
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- EP
- European Patent Office
- Prior art keywords
- roller
- insulating layer
- film
- conductors
- gap
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
- H01B7/0838—Parallel wires, sandwiched between two insulating layers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49169—Assembling electrical component directly to terminal or elongated conductor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49169—Assembling electrical component directly to terminal or elongated conductor
- Y10T29/49171—Assembling electrical component directly to terminal or elongated conductor with encapsulating
- Y10T29/49172—Assembling electrical component directly to terminal or elongated conductor with encapsulating by molding of insulating material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49194—Assembling elongated conductors, e.g., splicing, etc.
Definitions
- the invention relates to a method for the continuous production of Ribbon cables spaced from each other parallel to each other arranged and embedded in insulating electrical conductors, wherein band-shaped conductor spaced apart in a plane under training be guided by two surface sides and the surface sides with Insulating layers are provided on the basis of thermoplastic materials and between the insulating layers, the band-shaped conductors are embedded, wherein at least one of the surface sides forming insulating layers is molded from a thermoplastic resin melt, by means of a Flat film die of an extruder is produced and in still plasticized Condition with the band-shaped conductors and the other insulating layer below Application of pressure is connected.
- Ribbon cables are used extensively in the electronics industry, Computer industry and, for example, in products where little room for Is available, such as motor vehicles, aircraft used.
- a common method is the production of ribbon cables by extrusion, wherein endless conductors are passed through a die and extruded from the die Plastic melt are sheathed.
- These ribbon cables are called Flat Extruded Cable (FEC), see, for example, EP 0675576 A1 and WO 98/52199.
- Another method is the manufacture of ribbon cables through Lamination between two plastic films from a thermostable thermoplastic, wherein as embedding layer is an adhesive layer is provided between the two plastic sheets, in which the ladder be embedded.
- the latter ribbon cables are also called Flexible Flat Cable (FFC), see for example US-A-5,917,154, US-A-3,833,443, WO 87/06760.
- EP-A-0066740 is a generic method and apparatus known for the continuous production of ribbon cables.
- two spray heads of a common extruder two insulating layers extruded and in one of two rollers, of which at least one with grooves is profiled, nip formed and inserted, wherein in one Level parallel conductor inserted between the insulating layers and in the Nip be connected with these.
- From DE 4200311 A1 also a method for the manufacture of adhesive-free ribbon conductor known in which the metallic conductors between sheets of amorphous or semi-crystalline thermoplastics be continuously pressed on a double belt press or laminator.
- the ribbon cables must meet the requirements for temperature resistance, Hydrolysis resistance, low shrinkage, good processability, simple Make contacts and connections.
- the adhesive layer may prove problematic since it must be removed in the area of the contact points. Also tend the laminate films at high temperatures to delaminate as they For example, in motor vehicles in the summer in the engine and roof area may occur.
- the invention has for its object to provide an economical method for Manufacture of ribbon cables to create that with high production speed and accuracy works and at the same time the Overall thickness of the insulating layers compared to extruded ribbon cables can be reduced.
- the invention is the task underlying, even ribbon cable with smaller thickness than extruded To create ribbon cables that manage without adhesive layers.
- One Another concern is to produce ribbon cable in such a way that for the Contacting and connection points no cleaning of the to be cleared Head ends is required.
- This object is according to the proposal of the invention with a method for the continuous production of ribbon cables solved in that the strip-shaped conductor on a first guided over a roller insulating layer be placed and then merged with the second insulating layer be at least one of the surface sides forming Insulating layers of a thermoplastic polymer melt in the chill-roll process is produced.
- the extrusion coating method as used for the Production of extrusion coatings is known, for the first time for the Production of ribbon cables used.
- the thermoplastic Plastic melt is extruded through a flat film die / slot die and the out of the nozzle emerging melt film, which is usually very low is viscous, is due to appropriate speed differences between the nozzle exit and the surface of the roller / chill roll, on which the Melt film is applied, pulled out, d. H. to a small thickness brought. So it is possible, ribbon cables with on the conductor sides Overlying insulating layers of less than 100 microns down to 50 microns or to produce less, which significantly reduces shrinkage and Have tendency to shrink.
- chill-roll process for the production of flat films See, for example, Lexicon Maschinenbau by Heinz M. Hiersig, Dusseldorf, VDI-Verlag 1995, p. 314.
- thermoplastic materials for the insulating layers come in particular high temperature resistant thermoplastics in Question, such as high strength polyamides, high strength polyesters, PVC, thermoplastic polyurethane, polyolefins, polyimides, crosslinkable thermoplastics, fluorine-containing thermoplastic polymers, linear (half) aromatic polyesters, linear polyarylene oxides, sulfides and sulfones, Ethylene-vinyl acetate copolymers, ethylene-alkyl (meth) acrylate Cound Terpolymers, these being used individually or in compatible blends optionally also be used after subsequent crosslinking can.
- high strength polyamides high strength polyesters, PVC, thermoplastic polyurethane, polyolefins, polyimides, crosslinkable thermoplastics, fluorine-containing thermoplastic polymers, linear (half) aromatic polyesters, linear polyarylene oxides, sulfides and sulfones, Ethylene-vinyl acetate copolymers, ethylene-
- the inventive method using the extrusion coating or the chill-Roli method can according to the invention be exercised in different ways.
- both surface sides of the band-shaped, in a Level conductor with an insulating layer through Provided extrusion coating According to another proposal of the Invention, only one of the two insulating layers is produced in this way, while the second insulating layer of a prefabricated thermoplastic plastic film consists.
- the prefabricated thermoplastic plastic film either an extruded flat film or also be produced by calendering film, however, the Producing the composite in prefabricated form.
- a further variant of the method according to the invention is characterized in that the guided in a plane ladder on one over a Roller guided first insulating layer of a thermoplastic Plastic film are continuously applied and with the plastic film be moved and subsequently to this while circulating with the Roller or a subsequent roller, a second insulating layer in the form a thermoplastic melt from a flat film die of a Extruders applied continuously and with the plastic film and the Ladders are combined to form a ribbon cable foil.
- a further advantageous embodiment of the method according to the invention for producing a low-shrink dimensionally stable Ribbon cable film provides that on the first roller continuously a first Insulating layer of a thermoplastic resin melt from a Flat film die of a first extruder is applied and subsequently the conductors spaced apart from each other in a plane and having one the first roller a first gap forming roller and on the first insulating layer applied to the first roll is applied, wherein the gap width formed by the distance of the rollers from each other of the gap determines the thickness of the first insulating layer, then on the still resting on the first roller first insulating layer with overlying Ladders continuously as a second insulating layer of a thermoplastic Plastic melt from a flat film die of a second extruder is applied and subsequent to the first roller another roller (9a) associated with forming a second nip, wherein the Distance of the rollers from each other, the gap width of the second formed Slit and thus the total thickness of the ribbon cable produced determined and the ribbon cable foil leaving
- This variant of the method according to the invention enables the application of the both insulating layers of a plastic melt in the chill-roll process, wherein the calibration of the layer thicknesses takes place in two steps.
- the inventive method further allows, the Insulating layers for the surface sides not only single-layered, but also form two or more layers, where it is of particular.
- the advantage is that in the course of extrusion coating the insulating layer be coextruded directly in the desired multi-layeredness can. In this way it is possible to have a corresponding structure of a Ribbon cable with inner embedding layers and outer high temperature resistant layers in the desired quality and economical way to produce.
- the inventive method allows ribbon cables in film widths of 1 m and more continuously, with production speeds of 100 m / min. and more are possible.
- the inventive application of the extrusion coating allows a complete embedding of the conductors in the insulating materials, wherein the desired adherent homogeneous composite between both two insulating layers produced by extrusion coating as well between a prefabricated thermoplastic film and a produced by extrusion coating insulating layer is produced.
- the invention enables ribbon cables of very low overall thicknesses up to down to produce 100 microns.
- the inventive method allows a variety of different Equipped ribbon cable both in terms of the number of conductors, the To produce conductor cross sections and the insulating layers.
- thermoplastically processable materials such as ethylene, copolymers such as Ethylene-vinyl acetate copolymers, copolymers and terpolymers with acrylic comonomers, such as ethylene-butyl acrylate copolymers, ethylene-acrylic acid copolymers, Styrene polymers, polyester hot melt adhesives, acrylates and Metacrylates in question.
- thermoplastic Adhesive which also apply by extrusion coating to let. According to the invention it is proposed that by means of Flat film nozzles two or more layers insulating with a Thermoplastic layer as outer layer and with a den Ladders facing coating coextruded from a primer become.
- the method for producing ribbon cables by means of of two insulating layers produced in situ by extrusion coating represented schematically and explained from a thermoplastic resin melt.
- Band-shaped electrical conductors 2 for example, with a very flat rectangular cross-section, for example made of copper, are in Arrow direction P1 coming deducted from unillustrated coils and in a plane in which they run parallel to each other from each other, the arrangement of the conductors 2 being of the desired design directed to the produced ribbon cable.
- the ladder 2 will be one of two rolls 8a, 8b formed nip S supplied.
- Each roller 8a or 8b is ahead of the nip S an extruder 6 with Slot die / Flachfoliendüse 61 and 7, 71 associated with, from the thermoplastic melt 3 or 4 emerges and on the roll surface 8a and 8b is performed.
- the rollers 8a and 8b have in the direction of arrow D1 a higher speed than the extrusion speed of the Melting 3, 4, so that according to the speed difference the Plastic melt pulled out and to the desired thickness of the Insulating is brought.
- the width of the formed flat ribbon cable 10th depends on the roll width and the nozzle width and can be 1 m and be more.
- a Variety of electrical conductors 2 for example, copper bands in the desired distances, parallel to each other in the thermoplastic Be embedded plastic melts and thus simultaneously a variety of ribbon cables 1.1, 1.2, 1.3 in the desired structure by Cutting the ribbon cable film 10 parallel to the conductors 2 according to the separating cuts 5 are generated.
- the method according to the invention enables high production speeds, small thicknesses of the insulating layers and accurate Storage and embedding of the ladder.
- thermoplastics for the insulating layers or on the electrical conductors in particular Copper conductors adjacent insulating layers as possible no connection with enter the electrical conductor, in particular the copper, so that the Terminals for the contacts when removing the insulating layer immediately are clean and require no additional processing.
- FIG 8 is a plant for producing a particular low-shrinkage ribbon cable 10 is shown schematically. Between the pair of rollers 8a, 8b, the first nip S is formed. A prefabricated plastic film 4a, which forms one of the insulating layers is in Arrow direction P2 pulled vertically through the gap S. At the same time the very flat copper strips 2 in the direction of arrow P1 over the roll surface the roller 8b supplied to the gap 5 and while passing through the same Pressure - the roller 8a works as a press roll - in the surface of Plastic film 4a pressed. This creates a pre-bond, as in Figure 9 shown.
- the copper bands serve as a carrier (like a tissue) in Longitudinal stretching of the plastic film and act both as a stretching also contrary to a shrinkage of the plastic film.
- a further nip S2 formed from the pair of rollers 9a, 9b.
- an extruder 6 a thermoplastic melt directly on extruded the roll surface of the roll 9b and extruded the same Insulating layer 3 is supplied to the gap S2, so that they are in the gap S2 with the Plastic film 4a on the adhering copper bands side having combines. In this case, a sufficient pressure is exerted in gap S2.
- a ribbon cable 10 with outer insulating layers 4a, 3 and 2 in the assembled ladder is then in the direction of arrow P3 deducted. This process becomes a low-stress composite whose cross-section is shown schematically in FIG.
- FIG. 11 shows a further variant of the method which it allows the two insulating layers of a plastic melt by means of to apply a chill roll unit.
- a first roller 8a provided, which rotates in the direction of arrow D1.
- On this roller is by means of of the extruder 7 via the flat film die a thermoplastic Plastic melt applied as the first insulating layer 4.
- a second roller 8b assigned to form the nip S.
- the roller 8b via which the conductors 2 are brought in and deflected, turns in the direction of arrow D4. Due to the defined distance between the Rolls 8a and 8b results in the required gap width and thus the desired thickness of the insulating layer 4th
- roller 8a Following the junction of the band-shaped conductor 2 with the first Insulating layer 4 in the nip S is the roller 8a another extruder. 6 associated with Flachfoliendüse 61, by means of which the second insulating layer. 3 in the form of a thermoplastic melt on the first Insulating layer 4 is applied with overlying conductors 2.
- a further roller 9a under training associated with a second nip S2 through which the Insulating layers 3, 4 with internal band-shaped conductors 2 be passed through, combined using pressure and calibrated. The distance of the rollers 8a and 9a from each other limits the total thickness of the plastic melts of the Insulating layers 3 and 4 and the band-shaped conductors 2 produced Ribbon cable foil 10.
- the roller 9a rotates in the direction of arrow D2.
- the roller 9a is the roller 9b as a take-off roller to form the Deduction gap assigned S3, which rotates in the direction of arrow D5.
- the role 9b can also be carried out as an impression roller.
- the ribbon cable foil 10 is then removed in the direction of arrow P3 and can then according to the Arrangement and assignment of the inner conductor 2 in corresponding individual ribbon cables are split by longitudinal separation.
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Insulated Conductors (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum kontinuierlichen Herstellen von Flachbandkabeln mit voneinander beabstandet parallel zueinander angeordneten und in Isoliermaterial eingebetteten elektrischen Leitern, wobei bandförmige Leiter voneinander beabstandet in eine Ebene unter Ausbildung von zwei Oberflächenseiten geführt werden und die Oberflächenseiten mit Isolierschichten auf Basis thermoplastischer Kunststoffe versehen werden und zwischen den Isolierschichten die bandförmigen Leiter eingebettet werden, wobei mindestens eine der die Oberflächenseiten bildenden Isolierschichten aus einer thermoplastischen Kunststoffschmelze geformt wird, die mittels einer Flachfoliendüse eines Extruders erzeugt wird und in noch plastifiziertem Zustand mit den bandförmigen Leitern und der anderen Isolierschicht unter Anwendung von Druck verbunden wird.The invention relates to a method for the continuous production of Ribbon cables spaced from each other parallel to each other arranged and embedded in insulating electrical conductors, wherein band-shaped conductor spaced apart in a plane under training be guided by two surface sides and the surface sides with Insulating layers are provided on the basis of thermoplastic materials and between the insulating layers, the band-shaped conductors are embedded, wherein at least one of the surface sides forming insulating layers is molded from a thermoplastic resin melt, by means of a Flat film die of an extruder is produced and in still plasticized Condition with the band-shaped conductors and the other insulating layer below Application of pressure is connected.
Flachbandkabel werden umfangreich in der Elektronikindustrie, Computerindustrie und beispielsweise bei Produkten, wo wenig Raum zur Verfügung steht, wie beispielsweise Kraftfahrzeugen, Flugzeugen eingesetzt. Eine übliche Methode ist die Herstellung der Flachbandkabel durch Extrusion, wobei endlose Leiter durch eine Düse hindurchgeführt und von der extrudierten Kunststoffschmelze ummantelt werden. Diese Flachbandkabel werden als Flat Extruded Cable (FEC) bezeichnet, siehe beispielsweise EP 0675576 A1 und WO 98/52199. Ribbon cables are used extensively in the electronics industry, Computer industry and, for example, in products where little room for Is available, such as motor vehicles, aircraft used. A common method is the production of ribbon cables by extrusion, wherein endless conductors are passed through a die and extruded from the die Plastic melt are sheathed. These ribbon cables are called Flat Extruded Cable (FEC), see, for example, EP 0675576 A1 and WO 98/52199.
Eine weitere Methode ist das Herstellen von Flachbandkabeln durch Einlaminieren zwischen zwei Kunststoffilmen aus einem thermostabilen thermoplastischen Kunststoff, wobei als Einbettungsschicht eine Kleberschicht zwischen den beiden Kunststoffolien vorgesehen ist, in welche die Leiter eingebettet werden. Letztere Flachbandkabel werden auch als Flexible Flat Cable (FFC) bezeichnet, siehe beispielsweise US-A-5,917,154, US-A-3,833,443, WO 87/06760.Another method is the manufacture of ribbon cables through Lamination between two plastic films from a thermostable thermoplastic, wherein as embedding layer is an adhesive layer is provided between the two plastic sheets, in which the ladder be embedded. The latter ribbon cables are also called Flexible Flat Cable (FFC), see for example US-A-5,917,154, US-A-3,833,443, WO 87/06760.
Aus der EP-A-0066740 ist ein gattungsgemäßes Verfahren und Vorrichtung zum kontinuierlichen Herstellen von Flachbandkabeln bekannt. Hierbei werden mittels zweier Spritzköpfe eines gemeinsamen Extruders zwei Isolierschichten extrudiert und in einen von zwei Walzen, von denen mindestens eine mit Rillen profiliert ist, gebildeten Walzenspalt abgezogen und eingeführt, wobei in einer Ebene parallel geführte Leiter zwischen die Isolierschichten eingeführt und im Walzenspalt mit diesen verbunden werden.From EP-A-0066740 is a generic method and apparatus known for the continuous production of ribbon cables. Here are by means of two spray heads of a common extruder two insulating layers extruded and in one of two rollers, of which at least one with grooves is profiled, nip formed and inserted, wherein in one Level parallel conductor inserted between the insulating layers and in the Nip be connected with these.
Aus der DE 4200311 A1 ist zudem ein Verfahren zum Herstellen von kleberfreien Flachbandleitem bekannt, bei dem die metallischen Leiter zwischen Bahnen aus amorphen oder teilkristallinen Thermoplasten kontinuierlich auf einer Doppelbandpresse oder Laminator verpreßt werden.From DE 4200311 A1 also a method for the manufacture of adhesive-free ribbon conductor known in which the metallic conductors between sheets of amorphous or semi-crystalline thermoplastics be continuously pressed on a double belt press or laminator.
Die Flachbandkabel müssen die Anforderungen an Temperaturbeständigkeit, Hydrolysebeständigkeit, geringe Schrumpfung, gute Verarbeitbarkeit, einfaches Herstellen von Kontakten und Anschlüssen erfüllen.The ribbon cables must meet the requirements for temperature resistance, Hydrolysis resistance, low shrinkage, good processability, simple Make contacts and connections.
Bei den aus Kunststoffolien unter Einsatz einer Kleberschicht laminierten Flachbandkabeln FFC kann sich die Kleberschicht als problematisch erweisen, da sie im Bereich der Kontaktierungsstellen entfernt werden muß. Auch neigen die Laminatfolien bei hohen Temperaturen zum Delaminieren, wie sie beispielsweise in Kraftfahrzeugen im Sommer im Motor und Dachbereich auftreten können.When laminated from plastic films using an adhesive layer Ribbon cables FFC, the adhesive layer may prove problematic since it must be removed in the area of the contact points. Also tend the laminate films at high temperatures to delaminate as they For example, in motor vehicles in the summer in the engine and roof area may occur.
Bei extrudierten Flachbandkabeln FEC besteht die Neigung, daß die Leiter bei der Herstellung wandern und somit Ungenauigkeiten in der Kabelführung vorhanden sind. Darüber hinaus sind der Dicke der extrudierten Isolierschicht Grenzen nach unten gesetzt, so daß Flachbandkabel FEC in der Regel dicker sind als Flachbandkabel FFC, die durch Laminierung entstanden sind.In extruded ribbon cables FEC there is a tendency that the conductors at the production and thus inaccuracies in the cable routing available. In addition, the thickness of the extruded insulating layer Limits set down so that ribbon cable FEC is usually thicker are FFC as ribbon cables, which are created by lamination.
Der Erfindung liegt die Aufgabe zugrunde, ein wirtschaftliches Verfahren zum Herstellen von Flachbandkabeln zu schaffen, das mit hoher Produktionsgeschwindigkeit und Genauigkeit arbeitet und bei dem zugleich die Gesamtdicken der Isolierschichten gegenüber extrudierten Flachbandkabeln verringert werden können. Darüber hinaus liegt der Erfindung die Aufgabe zugrunde, auch Flachbandkabel mit geringeren Dicken als extrudierte Flachbandkabel zu schaffen, die ohne Kleberschichten auskommen. Ein weiteres Anliegen ist es, Flachbandkabel in der Weise herzustellen, daß für die Kontaktierung und Anschlußstellen keine Reinigung der freizulegenden Leiterenden erforderlich ist. Ein weiteres Anliegen der Erfindung ist es, die Schrumpfneigung von durch Extrusion hergestellten Flachbandkabeln zu verringern.The invention has for its object to provide an economical method for Manufacture of ribbon cables to create that with high production speed and accuracy works and at the same time the Overall thickness of the insulating layers compared to extruded ribbon cables can be reduced. In addition, the invention is the task underlying, even ribbon cable with smaller thickness than extruded To create ribbon cables that manage without adhesive layers. One Another concern is to produce ribbon cable in such a way that for the Contacting and connection points no cleaning of the to be cleared Head ends is required. Another concern of the invention is that Shrinkage tendency of ribbon cables produced by extrusion too reduce.
Diese Aufgabe wird gemäß dem Vorschlag der Erfindung mit einem Verfahren zum kontinuierlichen Herstellen von Flachbandkabeln dadurch gelöst, daß die bandförmigen Leiter auf eine erste über eine Walze geführte Isolierschicht aufgelegt werden und danach mit der zweiten Isolierschicht zusammengeführt werden, wobei mindestens eine der die Oberflächenseiten bildenden Isolierschichten aus einer thermoplastischen Kunststoffschmelze im Chill-Roll-Verfahren erzeugt wird.This object is according to the proposal of the invention with a method for the continuous production of ribbon cables solved in that the strip-shaped conductor on a first guided over a roller insulating layer be placed and then merged with the second insulating layer be at least one of the surface sides forming Insulating layers of a thermoplastic polymer melt in the chill-roll process is produced.
Vorteilhafte Varianten und Weiterbildungen des erfindungsgemäßen Verfahrens sind den kennzeichnenden Merkmalen der Unteransprüche entnehmbar.Advantageous variants and developments of the method according to the invention are the characterizing features of the subclaims removed.
Es werden auch Flachbandkabel, hergestellt nach dem erfindungsgemäß vorgeschlagenen Verfahren beansprucht.It also ribbon cables, made according to the invention proposed method claimed.
Erfindungsgemäß wird das Extrusionsbeschichtungsverfahren, wie es für die Herstellung von Extrusionsbeschichtungen bekannt ist, erstmalig für die Herstellung von Flachbandkabeln eingesetzt. Die thermoplastische Kunststoffschmelze wird über eine Flachfoliendüse/ Breitschlitzdüse extrudiert und der aus der Düse austretende Schmelzefilm, der in der Regel sehr niedrig viskos ist, wird durch entsprechende Geschwindigkeitsdifferenzen zwischen dem Düsenaustritt und der Oberfläche der Walze/Kühlwalze, auf die der Schmelzefilm aufgebracht wird, ausgezogen, d. h. auf eine geringe Dicke gebracht. So ist es möglich, Flachbandkabelfolien mit auf den Leiterseiten aufliegenden Isolierschichten von kleiner 100 µm bis herab zu 50 µm oder weniger herzustellen, die eine wesentlich verringerte Schrumpfung und Schrumpfneigung aufweisen.According to the invention, the extrusion coating method as used for the Production of extrusion coatings is known, for the first time for the Production of ribbon cables used. The thermoplastic Plastic melt is extruded through a flat film die / slot die and the out of the nozzle emerging melt film, which is usually very low is viscous, is due to appropriate speed differences between the nozzle exit and the surface of the roller / chill roll, on which the Melt film is applied, pulled out, d. H. to a small thickness brought. So it is possible, ribbon cables with on the conductor sides Overlying insulating layers of less than 100 microns down to 50 microns or to produce less, which significantly reduces shrinkage and Have tendency to shrink.
Dieses Verfahren ist als Chill-Roll-Verfahren für die Herstellung von Flachfolien bekannt, siehe beispielsweise Lexikon Maschinenbau von Heinz M. Hiersig, Düsseldorf, VDI-Verlag 1995, S. 314. This process is called chill-roll process for the production of flat films See, for example, Lexicon Maschinenbau by Heinz M. Hiersig, Dusseldorf, VDI-Verlag 1995, p. 314.
Als thermoplastische Kunststoffe für die Isolierschichten kommen insbesondere hochtemperaturbeständige thermoplastische Kunststoffe in Frage, wie hochfeste Polyamide, hochfeste Polyester, PVC, thermoplastisches Polyurethan, Polyolefine, Polyimide, vernetzbare thermoplastische Kunststoffe, fluorhaltige thermoplastische Polymere, lineare (halb)aromatische Polyester, lineare Polyarylen-Oxide, -Sulfide und-Sulfone, Ethylen-Vinylacetat-Copolymere, Ethylen-alkyl(meth)acrylat-Cound Terpolymere, wobei diese einzeln oder in verträglichen Abmischungen gegebenenfalls auch nach anschließender Vernetzung eingesetzt werden können.As thermoplastic materials for the insulating layers come in particular high temperature resistant thermoplastics in Question, such as high strength polyamides, high strength polyesters, PVC, thermoplastic polyurethane, polyolefins, polyimides, crosslinkable thermoplastics, fluorine-containing thermoplastic polymers, linear (half) aromatic polyesters, linear polyarylene oxides, sulfides and sulfones, Ethylene-vinyl acetate copolymers, ethylene-alkyl (meth) acrylate Cound Terpolymers, these being used individually or in compatible blends optionally also be used after subsequent crosslinking can.
Das erfindungsgemäße Verfahren unter Anwendung der Extrusionsbeschichtung bzw. des Chill-Roli-Verfahrens kann erfindungsgemäß auf verschiedene Weise ausgeübt werden. Gemäß einem Vorschlag der Erfindung werden beide Oberflächenseiten der bandförmigen, sich in einer Ebene befindenden Leiter mit einer Isolierschicht durch Extrusionsbeschichtung versehen. Gemäß einem weiteren Vorschlag der Erfindung wird nur eine der beiden Isolierschichten in dieser Weise erzeugt, während die zweite Isolierschicht aus einer vorgefertigten thermoplastischen Kunststoffolie besteht. Hierbei kann die vorgefertigte thermoplastische Kunststoffolie entweder eine extrudierte Flachfolie oder auch eine durch Kalandrieren hergestellte Folie sein, die jedoch zum Herstellen des Verbundes in vorgefertigter Form vorliegen.The inventive method using the extrusion coating or the chill-Roli method can according to the invention be exercised in different ways. According to a proposal of the Invention, both surface sides of the band-shaped, in a Level conductor with an insulating layer through Provided extrusion coating. According to another proposal of the Invention, only one of the two insulating layers is produced in this way, while the second insulating layer of a prefabricated thermoplastic plastic film consists. Here, the prefabricated thermoplastic plastic film either an extruded flat film or also be produced by calendering film, however, the Producing the composite in prefabricated form.
Gemäß einem Vorschlag der Erfindung wird die eine erste Isolierschicht bildende Kunststoffolie in einen zwischen zwei Walzen gebildeten Spalt eingeführt und die in einer Ebene geführten Leiter werden in über eine der beiden den Spalt bildenden Walzen in den Spalt eingeführt und mittels des durch die beiden Walzen ausgeübten Drucks zumindest teilweise in die Kunststoffolie einseitig eingepreßt, und danach wird die Kunststoffolie mit den eingepreßten bandförmigen Leitern einem zweiten von einem weiteren Walzenpaar gebildeten Spalt zugeführt und hindurchgezogen, und auf eine der Walzen des zweiten Walzenpaares vor dem Einlaufen in den zweiten Walzenspalt eine thermoplastische Kunststoffschmelze aus einer Flackfoliendüse eines Extruders zu der zweiten Isolierschicht extrudiert und aufgetragen und die Leiter und die erste Isolierschicht beim Durchlaufen durch den zweiten Spalt mit der die zweite Isolierschicht bildenden Kunststoffschmelze zu der Flachbandkabelfolie vereinigt, wobei die in die Kunststoffolie eingepreßten bandförmigen Leiter als Stabilisierungs- und Zugelemente zur Verhinderung der Reckung und/oder Schrumpfung der Isolierschichten in Längsrichtung der Leiter dienen.According to one proposal of the invention, the first insulating layer forming plastic film in a gap formed between two rollers introduced and led in a level ladder in about one of both rollers forming the gap introduced into the gap and by means of the by the two rollers pressure exerted at least partially in the Plastic film pressed on one side, and then the plastic film with the pressed-in band-shaped conductors a second of another Roll pair formed gap fed and pulled, and on a the rolls of the second pair of rolls before entering the second Nip a thermoplastic resin melt from a Flackfoliendüse an extruder extruded to the second insulating layer and applied and the conductors and the first insulating layer while passing through through the second gap with the second insulating layer forming Plastic melt combined to the ribbon cable film, wherein in the Plastic film pressed band-shaped conductor as a stabilizing and Tension elements to prevent the stretching and / or shrinkage of Insulating layers serve in the longitudinal direction of the conductor.
Eine weitere erfindungsgemäße Variante des Verfahrens ist dadurch gekennzeichnet, daß die in eine Ebene geführten Leiter auf eine über eine Walze geführte erste Isolierschicht aus einer thermoplastischen Kunststoffolie fortlaufend aufgelegt werden und mit der Kunststoffolie mitbewegt werden und nachfolgend hierauf während des Umlaufens mit der Walze oder einer nachfolgenden Walze eine zweite Isolierschicht in Form einer thermoplastischen Kunststoffschmelze aus einer Flachfoliendüse eines Extruders fortlaufend aufgetragen und mit der Kunststoffolie und den Leitern zu einer Flachbandkabelfolie vereinigt werden. A further variant of the method according to the invention is characterized in that the guided in a plane ladder on one over a Roller guided first insulating layer of a thermoplastic Plastic film are continuously applied and with the plastic film be moved and subsequently to this while circulating with the Roller or a subsequent roller, a second insulating layer in the form a thermoplastic melt from a flat film die of a Extruders applied continuously and with the plastic film and the Ladders are combined to form a ribbon cable foil.
Eine weitere vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens zur Herstellung einer schrumpfarmen dimensionsstabilen Flachbandkabelfolie sieht vor, daß auf die erste Walze fortlaufend eine erste Isolierschicht aus einer thermoplastischen Kunststoffschmelze aus einer Flachfoliendüse eines ersten Extruders aufgebracht wird und nachfolgend die in einer Ebene beabstandet voneinander geführten Leiter über eine mit der ersten Walze einen ersten Spalt bildende Walze geführt und auf die erste auf der ersten Walze aufliegende Isolierschicht aufgebracht werden, wobei die durch den Abstand der Walzen voneinander gebildete Spaltweite des Spaltes die Dicke der ersten Isolierschicht bestimmt, danach auf die noch auf der ersten Walze aufliegende erste Isolierschicht mit aufliegenden Leitern fortlaufend als zweite Isolierschicht eine thermoplastische Kunststoffschmelze aus einer Flachfoliendüse eines zweiten Extruders aufgebracht wird und nachfolgend der ersten Walze eine weitere Walze (9a) unter Ausbildung eines zweiten Walzenspaltes zugeordnet ist, wobei der Abstand der Walzen voneinander die Spaltweite des zweiten gebildeten Spaltes und damit die Gesamtdicke der erzeugten Flachbandkabelfolie bestimmt und die Flachbandkabelfolie mit Verlassen des Spaltes von der ersten Walze abgeführt und über die Walze anliegend geführt und mittels der der Walze zugeordneten nachfolgenden mit der Walze den Abzugsspalt bildenden Rolle abgezogen wird.A further advantageous embodiment of the method according to the invention for producing a low-shrink dimensionally stable Ribbon cable film provides that on the first roller continuously a first Insulating layer of a thermoplastic resin melt from a Flat film die of a first extruder is applied and subsequently the conductors spaced apart from each other in a plane and having one the first roller a first gap forming roller and on the first insulating layer applied to the first roll is applied, wherein the gap width formed by the distance of the rollers from each other of the gap determines the thickness of the first insulating layer, then on the still resting on the first roller first insulating layer with overlying Ladders continuously as a second insulating layer of a thermoplastic Plastic melt from a flat film die of a second extruder is applied and subsequent to the first roller another roller (9a) associated with forming a second nip, wherein the Distance of the rollers from each other, the gap width of the second formed Slit and thus the total thickness of the ribbon cable produced determined and the ribbon cable foil leaving the gap of the discharged first roller and guided over the roller fitting and by means of the subsequent roller associated with the roller, the trigger gap is subtracted form forming role.
Diese erfindungsgemäße Verfahrensvariante ermöglicht das Aufbringen der beiden Isolierschichten aus einer Kunststoffschmelze im Chill-Roll-Verfahren, wobei das Kalibrieren der Schichtdicken in zwei Schritten erfolgt.This variant of the method according to the invention enables the application of the both insulating layers of a plastic melt in the chill-roll process, wherein the calibration of the layer thicknesses takes place in two steps.
Das erfindungsgemäße Verfahren ermöglicht es des weiteren, die Isolierschichten für die Oberflächenseiten nicht nur einschichtig, sondern auch zwei- oder mehrschichtig auszubilden, wobei es von besonderem Vorteil ist, daß im Zuge der Extrusionsbeschichtung die Isolierschicht unmittelbar in der gewünschten Mehrschichtigkeit koextrudiert werden kann. Auf diese Weise ist es möglich, einen entsprechenden Aufbau eines Flachbandkabels mit inneren Einbettungsschichten und äußeren hochtemperaturbeständigen Schichten in der gewünschten Qualität und wirtschaftlichen Weise herzustellen.The inventive method further allows, the Insulating layers for the surface sides not only single-layered, but Also form two or more layers, where it is of particular The advantage is that in the course of extrusion coating the insulating layer be coextruded directly in the desired multi-layeredness can. In this way it is possible to have a corresponding structure of a Ribbon cable with inner embedding layers and outer high temperature resistant layers in the desired quality and economical way to produce.
Das erfindungsgemäße Verfahren gestattet, Flachbandkabel in Folienbreiten von 1 m und mehr kontinuierlich herzustellen, wobei Produktionsgeschwindigkeiten von 100 m/min. und mehr möglich sind.The inventive method allows ribbon cables in film widths of 1 m and more continuously, with production speeds of 100 m / min. and more are possible.
Die erfindungsgemäße Anwendung der Extrusionsbeschichtung ermöglicht ein vollständiges Einbetten der Leiter in die Isoliermaterialien, wobei problemlos der gewünschte haftfeste homogene Verbund sowohl zwischen zwei durch Extrusionsbeschichtung hergestellten Isolierschichten als auch zwischen einer vorgefertigten thermoplastischen Kunststoffolie und einer durch Extrusionsbeschichtung hergestellten Isolierschicht erzeugt wird. Je nach Anforderungen können Flachbandkabel mit der gewünschten Anzahl von Leitern in den gewünschten Breiten hergestellt werden, wobei die mögliche Produktionsbreite von Flachbandkabelfolien die Parallelfertigung mehrerer Flachbandkabel in einer Folie ermöglicht, die durch Aufschneiden parallel zu den Leitern in eine entsprechende Anzahl von Flachkabeln der gewünschten Ausstattung aufgeteilt werden.The inventive application of the extrusion coating allows a complete embedding of the conductors in the insulating materials, wherein the desired adherent homogeneous composite between both two insulating layers produced by extrusion coating as well between a prefabricated thermoplastic film and a produced by extrusion coating insulating layer is produced. ever according to requirements, ribbon cables with the desired number made of ladders in the desired widths, with the possible production width of ribbon cable films the parallel production several ribbon cables in a slide made possible by cutting parallel to the conductors in a corresponding number of flat cables of the desired equipment to be divided.
Die Erfindung ermöglicht, Flachbandkabel sehr geringer Gesamtdicken bis herab zu 100 µm zu erzeugen.The invention enables ribbon cables of very low overall thicknesses up to down to produce 100 microns.
Das erfindungsgemäße Verfahren gestattet, eine Vielzahl unterschiedlich ausgerüsteter Flachbandkabel sowohl in bezug auf die Anzahl der Leiter, die Leiterquerschnitte und die Isolierschichten herzustellen.The inventive method allows a variety of different Equipped ribbon cable both in terms of the number of conductors, the To produce conductor cross sections and the insulating layers.
Sofern Haftvermittlerschichten erwünscht sind, kommen hier insbesondere thermoplastisch verarbeitbare Materialien wie Ethylen, Copolymere wie Ethylen-Vinylacetat-Copolymere, Co- und Terpolymere mit Acryl-Comonomeren, wie Ethylen-Butylacrylat-Copolymere, Ethylen-Acrylsäure-Copolymere, Styrolpolymere, Polyesterschmelzkleber, Acrylate und Metacrylate in Frage. Bevorzugt sind solche thermoplastischen Haftvermittler, die sich ebenfalls durch Extrusionsbeschichtung auftragen lassen. Erfindungsgemäß wird vorgeschlagen, daß mittels der Flachfoliendüsen zwei oder mehrschichtige Isolierschichten mit einer thermoplastischen Kunststoffschicht als Außenschicht und mit einer den Leitern zugewandten Beschichtung aus einem Haftvermittler koextrudiert werden.If adhesive layers are desired, come here in particular thermoplastically processable materials such as ethylene, copolymers such as Ethylene-vinyl acetate copolymers, copolymers and terpolymers with acrylic comonomers, such as ethylene-butyl acrylate copolymers, ethylene-acrylic acid copolymers, Styrene polymers, polyester hot melt adhesives, acrylates and Metacrylates in question. Preferred are such thermoplastic Adhesive, which also apply by extrusion coating to let. According to the invention it is proposed that by means of Flat film nozzles two or more layers insulating with a Thermoplastic layer as outer layer and with a den Ladders facing coating coextruded from a primer become.
Die Erfindung wird nachfolgend an Ausführungsbeispielen, dargestellt in der Zeichnung, näher erläutert. Es zeigen:
- Figur 1
- schematische Darstellung des Herstellens von Flachbandkabeln nach dem Chill-Roll-Verfahren,
Figur 2- schematische Ansicht auf die Flachbandkabelfolie in Richtung C nach Figur 1,
Figur 3- der schematische Querschnitt durch die Flachbandkabelfolie
gemäß Schnitt AA nach
Figur 2, Figur 5- eine weitere Variation der Kombination von Extrusionsbeschichtung und Kunststoffolie zum Herstellen einer Flachbandkabelfolie,
Figur 6- der Querschnitt durch eine Flachbandkabelfolie, hergestellt
nach dem Verfahren nach
Figur 4 oder 5, Figur 7- eine weitere Variante der Herstellung einer Flachbandkabelfolie unter Einsatz der Extrusionsbeschichtung,
- Figur 8
- schematische Darstellung einer Variante zum Herstellen einer Flachbandkabelfolie mit Kunststoffolie und Extrusionsbeschichtung.
- Figur 9
- Querschnitt EE von Figur 8
Figur 10- Querschnitt FF von Figur 9.
- Figur 11
- Schematische Darstellung einer Variante zum Herstellen einer Flachbandkabelfolie nach dem Chill-Roll-Verfahren mit einer Chill-Roll-Einheit
- FIG. 1
- schematic representation of the production of ribbon cables by the chill-roll method,
- FIG. 2
- schematic view of the ribbon cable film in the direction C of Figure 1,
- FIG. 3
- the schematic cross section through the ribbon cable film according to section AA of Figure 2,
- FIG. 5
- another variation of the combination of extrusion coating and plastic film for making a ribbon cable film,
- FIG. 6
- the cross-section through a ribbon cable film, produced by the method according to Figure 4 or 5,
- FIG. 7
- a further variant of the production of a ribbon cable film using the extrusion coating,
- FIG. 8
- schematic representation of a variant for producing a ribbon cable film with plastic film and extrusion coating.
- FIG. 9
- Cross section EE of Figure 8
- FIG. 10
- Cross section FF of FIG. 9.
- FIG. 11
- Schematic representation of a variant for producing a ribbon cable film according to the chill-roll process with a chill-roll unit
Anhand der Figur 1 wird das Verfahren zum Herstellen von Flachbandkabeln mittels
zweier in situ hergestellter Isolierschichten durch Extrusionsbeschichtung
aus einer thermoplastischen Kunststoffschmelze schematisch dargestellt und erläutert.
Bandförmige elektrische Leiter 2, beispielsweise mit sehr flachem
rechteckförmigem Querschnitt, beispielsweise aus Kupfer, werden in
Pfeilrichtung P1 kommend von nicht dargestellten Spulen abgezogen und in
eine Ebene geführt, in der sie voneinander beabstandet parallel verlaufen,
wobei die Anordnung der Leiter 2 sich nach der gewünschten Ausführung
der herzustellenden Flachbandkabel richtet. Die Leiter 2 werden einem von
zwei Walzen 8a, 8b gebildeten Walzenspalt S zugeführt. Jeder Walze 8a
bzw. 8b ist voraneilend dem Walzenspalt S ein Extruder 6 mit
Breitschlitzdüse/Flachfoliendüse 61 bzw. 7, 71 zugeordnet, aus der die
thermoplastische Schmelze 3 bzw. 4 austritt und auf die Walzenoberfläche
8a bzw. 8b geführt wird. Die Walzen 8a bzw. 8b haben in Pfeilrichtung D1
eine höhere Geschwindigkeit als die Extrusionsgeschwindigkeit der
Schmelzen 3, 4, so daß entsprechend der Geschwindigkeitsdifferenz die
Kunststoffschmelze ausgezogen und auf die gewünschte Dicke der
Isolierschichten gebracht wird. In dem Walzenspalt S werden die
Kunststoffschmelzen 3, 4 mit den Leitem 2 zusammengebracht und die
Leiter 2 in die durch die Kunststoffschmelzen 3, 4 ausgebildeten
Isolierschichten eingebettet, wie in der Figur 3 ersichtlich ist. Bei
Ausbildung der Isolierschichten 3, 4 aus dem gleichen Material entsteht eine
homogene Isolierung. Die Breite der gebildeten Flachbandkabelfolie 10
richtet sich nach der Walzenbreite und der Düsenbreite und kann 1 m und
mehr betragen. Wie aus der Draufsicht nach Figur 2 ersichtlich, können eine
Vielzahl von elektrischen Leitern 2, beispielsweise Kupferbändern in den
gewünschten Abständen, parallel zueinander in die thermoplastischen
Kunststoffschmelzen eingebettet sein und somit gleichzeitig eine Vielzahl
von Flachbandkabeln 1.1, 1.2, 1.3 in dem gewünschten Aufbau durch
Aufschneiden der Flachbandkabelfolie 10 parallel zu den Leitern 2 gemäß
den Trennschnitten 5 erzeugt werden. The method for producing ribbon cables by means of
of two insulating layers produced in situ by extrusion coating
represented schematically and explained from a thermoplastic resin melt.
Band-shaped
Darüber hinaus ist es möglich, die so hergestellte Flachbandkabelfolie anschließend zu tempern, um eine entsprechende Schrumpfneigung zu verringern.In addition, it is possible, the thus produced ribbon cable film then anneal to a corresponding shrinkage tendency reduce.
Bei dem erfindungsgemäßen Verfahren gemäß
dem Beispiel nach Fig. 5 wird
eine Isolierschicht in
Gestalt einer Kunststoffolie 4a über eine Walze 8c einem gedachten
Walzenspalt zugeführt, siehe Pfeil P2, und auf diese Kunststoffolie 4a werden die
in einer Ebene parallel beabstandet geführten Leiter 2, siehe Pfeil P1,
gelegt. Danach kann dann die noch freie Oberflächenseite der Leiter mit
einer durch Extrusionsbeschichtung mittels eines Extruders 6 und
Flachfoliendüse 61 hergestellten Extrusionsschicht 3 abgedeckt werden und
die Extrusionsschicht 3, die Leiter 2 und die Kunststoffolie 4a durch weitere
Führung über eine Walze 9a zu der Flachbandkabelfolie 10 vereinigt und
abgezogen werden.In the inventive method according to
the example of FIG. 5 is
an insulating layer in
Shape of a
Gemäß dem Fertigungsverfahren der Figur 5 unter Einsatz einer
vorgefertigten Kunststoffolie entsteht eine Flachbandkabelfolie 10, bei der
die Leiter 2 auf der vorgefertigten Folie 4a als erster Isolierschicht aufliegen
und die durch die Extrusionsbeschichtung aufgebrachte Kunststoffschmelze
als zweite Isolierschicht 3 die Leiter 2 überdeckt und wie in Figur 6
dargestellt sich mit der ersten Isolierschicht 4a verbindet. Auch diese
Flachbandkabelfolie 10 kann eine beliebige Anordnung von Leitern 2
innerhalb der Isolierschichten 3, 4a aufweisen und durch entsprechende
Trennschnitte 6 in einzelne Flachbandkabel aufgeteilt werden.According to the manufacturing method of Figure 5 using a
prefabricated plastic film creates a
Das erfindungsgemäße Verfahren ermöglicht hohe Produktionsgeschwindigkeiten, geringe Dicken der Isolierschichten und genaue Einlagerung und Einbettung der Leiter.The method according to the invention enables high production speeds, small thicknesses of the insulating layers and accurate Storage and embedding of the ladder.
In der Figur 7 ist nur beispielhaft dargestellt, wie beispielsweise in
Kombination mit dem in der Figur 5 dargestellten Verfahren die
Kunststoffolie 4a beispielsweise durch eine vorangehende Chill-Roll-Anlage
als Flachfolie ebenfalls durch Extrusionsbeschichtung mittels einer Walze 8a
erzeugt werden kann und über eine Abzugswalze 9c in Pfeilrichtung P2 der
weiteren Beschichtung zugeführt wird.In the figure 7 is shown only by way of example, such as in
Combination with the method shown in Figure 5 the
Erfindungsgemäß wird vorgeschlagen, daß thermoplastische Kunststoffe für die Isolierschichten bzw. die an den elektrischen Leitern, insbesondere Kupferleitern anliegenden Isolierschichten möglichst keine Verbindung mit dem elektrischen Leiter, insbesondere dem Kupfer eingehen, so daß die Anschlußstellen für die Kontakte bei Entfernung der Isolierschicht sofort sauber sind und keiner zusätzlichen Bearbeitung bedürfen.According to the invention, it is proposed that thermoplastics for the insulating layers or on the electrical conductors, in particular Copper conductors adjacent insulating layers as possible no connection with enter the electrical conductor, in particular the copper, so that the Terminals for the contacts when removing the insulating layer immediately are clean and require no additional processing.
In der Figur 8 ist eine Anlage zum Herstellen einer besonders
schrumpfarmen Flachbandkabelfolie 10 schematisch dargestellt. Zwischen
dem Walzenpaar 8a, 8b ist der erste Walzenspalt S ausgebildet. Eine
vorgefertigte Kunststoffolie 4a, die eine der Isolierschichten bildet, wird in
Pfeilrichtung P2 vertikal durch den Spalt S gezogen. Gleichzeitig werden die
sehr flachen Kupferbänder 2 in Pfeilrichtung P1 über die Walzenoberfläche
der Walze 8b dem Spalt 5 zugeführt und beim Durchlaufen desselben unter
Druck - die Walze 8a arbeitet als Preßwalze - in die Oberfläche der
Kunststoffolie 4a gepreßt. Hierbei entsteht ein Vorverbund, etwa wie in
Figur 9 dargestellt. Die Kupferbänder dienen als Träger (wie ein Gewebe) in
Längserstreckung der Kunststoffolie und wirken sowohl einem Recken als
auch einem Schrumpfen der Kunststoffolie entgegen. Nachfolgend
durchläuft der Vorverbund 4a, 2 einen weiteren Walzenspalt S2, gebildet
von dem Walzenpaar 9a, 9b. Hierbei wird mittels einer Flachfoliendüse 61
eines Extruders 6 eine thermoplastische Kunststoffschmelze unmittelbar auf
die Walzenoberfläche der Walze 9b extrudiert und die so extrudierte
Isolierschicht 3 dem Spalt S2 zugeführt, so daß sie sich im Spalt S2 mit der
Kunststoffolie 4a auf der die anhaftenden Kupferbänder aufweisenden Seite
verbindet. Hierbei wird in Spalt S2 ein ausreichender Druck ausgeübt. Der
so als Flachbandkabel 10 mit äußeren Isolierschichten 4a, 3 und
inneliegenden Leitern 2 hergestellte Verbund wird dann in Pfeilrichtung P3
abgezogen. Mit diesem Verfahren wird ein spannungsarmer Verbund
hergestellt, dessen Querschnitt schematisch aus Figur 10 ersichtlich ist.In the figure 8 is a plant for producing a particular
low-
In der Figur 11 ist eine weitere Verfahrensvariante dargestellt, die es
ermöglicht, die beiden Isolierschichten aus einer Kunststoffschmelze mittels
einer Chill-Roll-Einheit aufzubringen. Hierfür ist eine erste Walze 8a
vorgesehen, die sich in Pfeilrichtung D1 dreht. Auf diese Walze wird mittels
des Extruders 7 über die Flachfoliendüse eine thermoplastische
Kunststoffschmelze als erste Isolierschicht 4 aufgetragen. Mit etwas
Abstand von der Auftragungsstelle ist der Walze 8a eine zweite Walze 8b
unter Ausbildung des Walzenspaltes S zugeordnet. Über die Walze 8b
werden dem Walzenspalt die in einer Ebene beabstandet voneinander
geführten bandförmigen Leiter 2 in Pfeilrichtung P1 zugeführt und beim
Durchlaufen durch den Walzenspalt S mit der Isolierschicht 4 vereinigt. Die
Walze 8b, über welche die Leiter 2 herangeführt und umgelenkt werden,
dreht sich in Pfeilrichtung D4. Durch den definierten Abstand zwischen den
Walzen 8a und 8b ergibt sich die erforderliche Spaltweite und damit die
gewünschte Dicke der Isolierschicht 4.FIG. 11 shows a further variant of the method which it
allows the two insulating layers of a plastic melt by means of
to apply a chill roll unit. For this purpose, a
Nachfolgend der Vereinigungsstelle der bandförmigen Leiter 2 mit der ersten
Isolierschicht 4 im Walzenspalt S ist der Walze 8a ein weiterer Extruder 6
mit Flachfoliendüse 61 zugeordnet, mittels dessen die zweite Isolierschicht 3
in Gestalt einer thermoplastischen Kunststoffschmelze auf die erste
Isolierschicht 4 mit aufliegenden Leitern 2 aufgetragen wird. Nach dieser
Auftragsstelle ist der Walze 8a eine weitere Walze 9a unter Ausbildung
eines zweiten Walzenspaltes S2 zugeordnet, durch welchen die
Isolierschichten 3, 4 mit innenliegenden bandförmigen Leitern 2
hindurchgeführt werden, unter Anwendung von Druck miteinander vereinigt
und kalibriert werden. Der Abstand der Walzen 8a und 9a voneinander
begrenzt die Gesamtdicke der aus den Kunststoffschmelzen der
Isolierschichten 3 und 4 sowie den bandförmigen Leitern 2 hergestellten
Flachbandkabelfolie 10. Die Walze 9a dreht sich in Pfeilrichtung D2. In
entsprechendem Abstand von dem Walzenspalt S2 zwischen Walze 9a und
8a ist der Walze 9a die Rolle 9b als Abzugswalze unter Ausbildung des
Abzugsspaltes S3 zugeordnet, die sich in Pfeilrichtung D5 dreht. Die Rolle
9b kann auch als Presseurwalze ausgeführt werden. Die Flachbandkabelfolie
10 wird dann in Pfeilrichtung P3 abgeführt und kann dann entsprechend der
Anordnung und Zuordnung der innenliegenden Leiter 2 in entsprechende
einzelne Flachbandkabel durch Längstrennung aufgeteilt werden.Following the junction of the band-shaped
Claims (14)
- Method for the continuous production of flat ribbon cables (1.1, 1.2, 1.3) with electrical conductors, which are spaced apart from each other and parallel with respect to each other and are embedded in insulating material, wherein ribbon-shaped conductors (2) are guided, spaced apart from each other, on one level forming two surfaces, and the surfaces are.provided with insulating layers (3 or 4) on the basis of thermoplastic materials, and the ribbon-shaped conductors are embedded between the insulating layers, at least one of the insulating layers (3, 4) forming the surfaces is made of a molten thermoplastic material, which is produced by means of a flat film nozzle (61, 71) of an extruder (6, 7) and is immediately connected in a still plasticized state with the ribbon-shaped conductors (2) and the other insulating layer (4 or 3) under application of pressure, characterized in that the ribbon-shaped conductors (2) are placed on a first insulating layer (4, 4a) guided over a roller (8c, 8a) and are thereafter combined with the second insulating layer (3), wherein at least one of the insulating layers forming the surfaces is produced of a molten thermoplastic material by the Chill-Roll process.
- Method according to claim 1, characterized in that the molten thermoplastic material for the insulating layers (3, 4) exiting from the flat film nozzle of the extruder (6, 7) is a molten film of a very low viscosity and is drawn out by appropriate speed differences between the outlet of the flat film nozzle and the surface of a roller, to which the molten film is applied and is reduced in thickness.
- Method according to claim 1, characterized in that a pre-fabricated plastic film (4a) is used as the first insulating layer and is connected with the plastic melt of the second insulating layer (3).
- Method according to claim 1 or 2, characterized in that a thermoplastic melt (4) is used as the first insulating layer.
- Method according to one of the claims 1 to 3, characterized in that the plastic film (4a) forming the first insulating layer is introduced into a gap (S) formed between two rollers (8b, 8a), and the conductors (2) guided on the one level are introduced into the gap over one (8b) of the two rollers (8a, 8b) forming the gap (S) and are pressed, at least partially, into the plastic film on one side by the pressure exerted by the two rollers, and thereafter the plastic film (4a) with the impressed ribbon-shaped conductors (2) is guided to and pulled through a second gap (S2) formed by a further pair of rollers (9a, 9b), and prior to entering the second roller gap (S2), a thermoplastic melt is extruded out of a flat film nozzle (61) of an extruder (6) onto one of the rollers of the second pair of rollers (9a, 9b) and applied as the second insulating layer (3), and the conductors (2) and the first insulating layer (4a) are combined with the plastic melt forming the second insulating layer into the flat ribbon cable film (10) while passing through the second gap (S2), wherein the ribbon-shaped conductors (2) pressed into the plastic film act as stabilizing and traction elements for preventing the stretching and/or shrinking of the insulating layers in the longitudinal direction of the conductors.
- Method according to one of the claims 1 to 3, characterized in that the conductors (2) guided in one level are continuously placed on a first insulating layer made of a thermoplastic film (4a) conducted over a roller (8c) and are moved along with the plastic film, and that thereafter in the course of the rotation with the roller (8c) or a following roller a second insulating layer (3) in the form of a thermoplastic melt is continuously applied from a flat film nozzle (61) of an extruder (6) and is combined into a flat ribbon cable film (10) with the plastic film (4a) and the conductors (2).
- Method according to claim 1, 2 or 4, characterized in that a first insulating layer (3) being of a thermoplastic melt from a flat film nozzle (61) of a first extruder (6) is continuously applied to a first roller (8a) and subsequently the conductors (2), which are guided spaced apart on one level are conducted over a second roller (8b) which, together with the first roller (8a), forms a first gap (S), and are placed on the first insulating layer (3) present on the first roller (8a), wherein the gap width of the gap (S) formed by the distance of the rollers (8a, 8b) from each other determines the thickness of the first insulating layer (3), after which a thermoplastic melt from a flat film nozzle (71) of a second extruder (7) is continuously applied on the first insulating layer (3) still present on the first roller (8a), on which the conductors (2) lie, as the second insulating layer (4), and that a further roller (9a) is assigned downstream of the first roller (8a) to form a second roller gap (S2), wherein the distance of the rollers (8a and 9a) from each other determines the gap width of the second gap (S2) and therefore the total thickness of the produced flat ribbon cable film (10), and that after leaving the gap (S2) the flat ribbon cable film (10) is conducted away from the first roller (8a) and is guided, resting on the roller (9a), and is drawn off by means of the roller (9b), which is assigned to the roller (9a) and together with the roller (9a) forms the draw-off gap (S3).
- Method according to one of the claims 1 to 7, characterized in that the insulating layers (3, 4 or 4a) covering the surfaces are constructed of one of a single-layer, a double-layer and multi-layers.
- Method according to one of the claims 1 to 8, characterized in that two-or multi-layer insulating layers (3, 4 or 4a), having a thermoplastic layer as an outer layer and a coating of a coupling agent facing the conductors (2) are co-extruded by means of flat film nozzles (61, 71) of the extruders (6, 7).
- Method according to one of the claims 1 to 9, characterized in that polyamide, PVC, thermoplastic polyurethane, polyolefins, high-strength polyesters, polyimides, thermoplastic materials, which can be cross-linked, fluorine-containing thermoplastic polymers, linear (semi)aromatic polyesters, linear polyarylene oxides, sulfides and sulfones, ethylene-vinyl acetat copolymers, ethylene-alkyl(meth)acrylate copolymers and terpolymers are employed as thermoplastic materials.
- Method according to one of the claims 1 to 10, characterized in that ethylene copolymers, such as EVA and their copolymers, styrene polymers, polyester melt adhesives, acrylates and methacrylates are employed as coupling agents.
- Method according to one of the claims 1 to 11, characterized in that the flat ribbon cable film (10) is cut parallel with the longitudinal extension of the conductors to form two or more flat ribbon cables (1.1, 1.2, 1.3).
- Method according to one of the claims 1 to 12, characterized in that the insulating layers (3, 4), which have been produced by extrusion and applied to the rollers by extrusion coating by means of flat film nozzles have a thickness of 50 to 100 µm.
- Flat ribbon cable, produced according one of the claims 1 to 13.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10057458 | 2000-11-20 | ||
| DE10057458 | 2000-11-20 | ||
| DE10103367 | 2001-01-25 | ||
| DE10103367A DE10103367C2 (en) | 2000-11-20 | 2001-01-25 | Process for the production of ribbon cables |
| PCT/EP2001/013149 WO2002041327A1 (en) | 2000-11-20 | 2001-11-14 | Method for producing flat cables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1336182A1 EP1336182A1 (en) | 2003-08-20 |
| EP1336182B1 true EP1336182B1 (en) | 2005-02-09 |
Family
ID=26007720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01995632A Expired - Lifetime EP1336182B1 (en) | 2000-11-20 | 2001-11-14 | Method for producing flat cables |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6954983B2 (en) |
| EP (1) | EP1336182B1 (en) |
| JP (1) | JP2004528675A (en) |
| AT (1) | ATE289111T1 (en) |
| ES (1) | ES2237618T3 (en) |
| WO (1) | WO2002041327A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10213736C1 (en) * | 2002-03-26 | 2003-07-17 | Troester Maschf Paul | Production of flat cable strips passes the conductors and a plastics film through the gap between a roller and a shaping bar, together with an extruded plastics mass to encapsulate the spaced and parallel conductors |
| CA2691562A1 (en) * | 2007-06-28 | 2008-12-31 | Reifenhaeuser Gmbh & Co. Kg Maschinenfabrik | Guide element for a tubular film |
| US7989701B2 (en) * | 2007-11-27 | 2011-08-02 | Sabic Innovative Plastics Ip B.V. | Multiconductor cable assembly and fabrication method therefor |
| US20100130054A1 (en) * | 2008-06-04 | 2010-05-27 | Williams-Pyro, Inc. | Flexible high speed micro-cable |
| ES2381916T3 (en) * | 2009-09-18 | 2012-06-01 | REIFENHäUSER GMBH & CO. MASCHINENFABRIK | Winding device |
| US20110122323A1 (en) * | 2009-11-26 | 2011-05-26 | Samsung Electronics Co., Ltd. | Flat cable and display apparatus including the same |
| WO2012030299A1 (en) | 2010-09-03 | 2012-03-08 | Jsb Tech Private Limited | A rigid-flex circuit board and manufacturing method |
| KR20150008764A (en) * | 2013-07-15 | 2015-01-23 | 지미숙 | A Flexible Flat Cable for a Low Valtage Differential Signaling |
| EP3216583B1 (en) | 2016-03-11 | 2021-04-28 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Coextrusion adapter |
| US10999925B2 (en) * | 2018-09-19 | 2021-05-04 | Ii-Vi Delaware, Inc. | Stretchable conductor circuit |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3523844A (en) * | 1967-01-20 | 1970-08-11 | Thomas & Betts Corp | Method and apparatus for making flexible multiconductor flat cable |
| CA962021A (en) * | 1970-05-21 | 1975-02-04 | Robert W. Gore | Porous products and process therefor |
| US3802974A (en) * | 1970-12-01 | 1974-04-09 | L Emmel | Method and apparatus for insulating electrically conductive elements |
| US3833443A (en) * | 1972-10-20 | 1974-09-03 | Fortin Laminating Corp | Method of making flexible conductor cable |
| US4311002A (en) * | 1977-09-22 | 1982-01-19 | Kabel Metallwerke Ghh | Forming stranded stock |
| US4375379A (en) * | 1978-11-09 | 1983-03-01 | Teltec, Inc. | Process of making a multiple conductor flexible wire cable |
| FR2446532A1 (en) | 1978-12-11 | 1980-08-08 | Cables De Lyon Geoffroy Delore | Flat strip cable mfr. - uses individually insulated wires and maintains output up to 200 metres per minute |
| FR2506500A1 (en) * | 1981-05-22 | 1982-11-26 | Filotex Sa | DEVICE FOR MANUFACTURING FLAT CABLES |
| DE3408613C3 (en) | 1984-03-09 | 1996-02-08 | Alkor Gmbh | Method and device for producing undrawn polypropylene films with improved weldability |
| US4663098A (en) * | 1985-03-27 | 1987-05-05 | Amp Incorporated | Method of manufacturing high performance flat cable |
| US4783579A (en) | 1986-04-29 | 1988-11-08 | Amp Incorporated | Flat multi-conductor power cable with two insulating layers |
| BR9206550A (en) * | 1991-09-27 | 1995-06-27 | Minnesota Mining & Mfg | Cable for transmitting electromagnetic signals, ribbon cable, and, production process of a multiple fiber ribbon cable, shielded |
| TW198118B (en) * | 1991-09-27 | 1993-01-11 | Minnesota Mining & Mfg | |
| DE4201376C1 (en) * | 1992-01-20 | 1993-01-28 | Herberts Gmbh, 5600 Wuppertal, De | |
| US5235132A (en) * | 1992-01-29 | 1993-08-10 | W. L. Gore & Associates, Inc. | Externally and internally shielded double-layered flat cable assembly |
| FR2718296B1 (en) | 1994-03-30 | 1996-05-15 | Valeo Electronique | Electrical connection tape for rotary switch, in particular for motor vehicles. |
| DE19534012C2 (en) | 1995-09-14 | 1997-07-31 | Basf Lacke & Farben | Direct extrusion composite |
| FR2742258B1 (en) * | 1995-12-08 | 1998-02-27 | Axoncable Sa | LOW MARGIN FLAT CABLE |
| WO1998052199A1 (en) | 1997-05-16 | 1998-11-19 | The Furukawa Electric Co., Ltd. | Flat cable and method of manufacturing the same |
-
2001
- 2001-11-14 US US10/432,067 patent/US6954983B2/en not_active Expired - Fee Related
- 2001-11-14 JP JP2002543448A patent/JP2004528675A/en active Pending
- 2001-11-14 WO PCT/EP2001/013149 patent/WO2002041327A1/en not_active Application Discontinuation
- 2001-11-14 AT AT01995632T patent/ATE289111T1/en not_active IP Right Cessation
- 2001-11-14 EP EP01995632A patent/EP1336182B1/en not_active Expired - Lifetime
- 2001-11-14 ES ES01995632T patent/ES2237618T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1336182A1 (en) | 2003-08-20 |
| US6954983B2 (en) | 2005-10-18 |
| ATE289111T1 (en) | 2005-02-15 |
| WO2002041327A1 (en) | 2002-05-23 |
| US20040029451A1 (en) | 2004-02-12 |
| JP2004528675A (en) | 2004-09-16 |
| ES2237618T3 (en) | 2005-08-01 |
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