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EP1398855A1 - Stripping of FFCs - Google Patents

Stripping of FFCs Download PDF

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Publication number
EP1398855A1
EP1398855A1 EP02450195A EP02450195A EP1398855A1 EP 1398855 A1 EP1398855 A1 EP 1398855A1 EP 02450195 A EP02450195 A EP 02450195A EP 02450195 A EP02450195 A EP 02450195A EP 1398855 A1 EP1398855 A1 EP 1398855A1
Authority
EP
European Patent Office
Prior art keywords
laser
laser sources
covers
activation
ffcs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02450195A
Other languages
German (de)
French (fr)
Other versions
EP1398855B1 (en
Inventor
Jörn Dietrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
I & T Innovation Technology Entwicklungs- und
Original Assignee
I & T Flachleiter Produktions-Gesmbh
I & T Flachleiter Produktions
I & T Flachleiter Produktions-Gesmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by I & T Flachleiter Produktions-Gesmbh, I & T Flachleiter Produktions, I & T Flachleiter Produktions-Gesmbh filed Critical I & T Flachleiter Produktions-Gesmbh
Priority to DE50206666T priority Critical patent/DE50206666D1/en
Priority to EP02450195A priority patent/EP1398855B1/en
Priority to ES02450195T priority patent/ES2263763T3/en
Priority to AT02450195T priority patent/ATE325451T1/en
Priority to JP2003311762A priority patent/JP2004090092A/en
Priority to US10/654,519 priority patent/US6936788B2/en
Publication of EP1398855A1 publication Critical patent/EP1398855A1/en
Application granted granted Critical
Publication of EP1398855B1 publication Critical patent/EP1398855B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26

Definitions

  • the invention relates to the stripping of flat, flexible conductors, so-called FFCs.
  • FFCs are becoming increasingly common in industry and especially in automotive engineering compared to round cables because they can be processed by machines.
  • they allow electrically conductive connections in the form of To create branch points by around the conductor tracks to be contacted Insulation material is removed, the two FFCs are placed on top of each other to match interconnects to be connected and the connection point then again with a potting material or insulating tapes or the like is isolated.
  • Such windows are created in the prior art by a combination a punching process with a peeling process or machining and is complex and uncomfortable because of the extrudate particles. It was already tries to make the windows by laser, but this leads to an impairment the surface of the conductor tracks, which must then be chemically treated before the Further processing is possible. The necessary chemical treatment does it in Manufacturing process necessary to provide a work station with the corresponding liquid chemicals are handled, which have appropriate suction and drainage and which has to follow a drying and control step to ensure that the FFCs received are flawless. Such a station is a foreign body in an otherwise electronically, with lasers and the like production line and therefore to be avoided if possible.
  • the applicant has developed a method based on laser technology that the problems mentioned above and to technologically perfect windows in the FFC leads.
  • This process is patented separately from the present application Registered.
  • the present application relates to the arrangement of at least two lasers, between which there is an FFC in which a window is to be created.
  • the Arrange two lasers aligned with one another and facing each other frontally at the Manufacturing windows in FFCs is because of the small size of the windows and the need to to create the windows from both sides. If you look at the Processing between stripping the top and stripping the bottom moving the FFC, the required positioning accuracy can only be achieved with disproportionate effort and only in low clock rates. There is inconvenient possibility that by moving the FFC from the stripping on the Top for stripping on the bottom of a window or vice versa to one Offset is coming.
  • this problem is reliably and inexpensively avoided by that a cover impenetrable to the laser beam is arranged in front of each laser which is only removed from the area of the laser beam if the assigned one Laser is activated.
  • the cover of each laser consists of one rotating disc with corresponding holes or recesses, preferably the two disks for the two lasers are mounted on a common axis of rotation.
  • FIG. 1 shows, purely schematically, an arrangement according to the invention.
  • Processing station is passed through an FFC 1 and at the points where a Window 2 is to be produced, stopped in the area between 2 lasers 3, 4 and appropriately positioned and fixed to the window 2 with the necessary geometric To be able to produce accuracy.
  • the FFC 1 consists of several parallel to one another in one plane Conductor tracks 5, of which only one according to the guidance of the cut in FIG. 1 is visible, and the extrudate 6, which surrounds the conductor tracks and is made of electrically insulating, but within limits of plastically deformable material.
  • the two lasers 3, 4, which are purely schematic in FIG. 1 and do not correspond to them actual arrangement are shown, are arranged coaxially along an axis 7 and directed against each other. In most applications, the lasers are in some Distance from the object and the laser beams are each using an optic (which can also include flexible light guides) aimed at their target and appropriately focused.
  • the structures denoted by 3 and 4 correspond most closely to the optics, however naturally also belongs to the laser in a broader sense.
  • the lasers 3, 4 are in the Area of the window to be formed 2 simultaneously movable to the window with the to create the desired size and shape.
  • This essentially consists of a by a (not shown) Motor rotated shaft 9, which carries two cover plates 13, 14, each are assigned to one of the lasers 3, 4.
  • the rotor shaft 9 is essentially normal the plane of the FFC 1 and is arranged relatively close to the edge of the FFC 1. On this way, depending on the angular position of the rotor shaft 9 and thus the cover disks 13, 14 sections of these disks in front of the assigned laser 3, 4 or not.
  • FIG. 1 shows that angular position in which the cover plate 13 is in front of the laser 3 is located, while the cover plate 14 releases the laser 4 so that it activates can be.
  • This alternate activation is preferred by means of a circuit made of the angular position of the axis of rotation 9 and thus the angular position Cover plates 13, 14 is derived.
  • Fig. 1 this is schematically at the lower end of the Rotor shaft 9 shown where a switch 23 for the laser 3 and a switch 24 for the Laser 4 is indicated.
  • the eccentric cover disks 13, 14 it is possible instead of the eccentric cover disks 13, 14 to provide gear-like structures and thus at the desired high speeds a dynamically balanced situation. Similarly, it is possible instead a gear-like construction to provide perforated disks through which the same purpose is fulfilled.
  • the switches 23, 24 do not have to be the lasers 3, 4 directly activate, but give appropriate signals to the actual control electronics for the two lasers. In any case, the provision of the device 8 ensures that the two lasers 3, 4 cannot damage each other.
  • FIG. 1 a modified construction 18 is shown in FIG a reciprocal linear movement of two cover disks 13 '14' is based.
  • the leadership the purely schematic section of FIG. 2 is normal to the schematic section of FIG 1, so that it can be seen in this illustration that the FFC 1 has a plurality of conductor tracks 5 and how they are arranged to each other.
  • the Safety device 18 is based on the pivoting of a pivot lever 10, for example by a connecting rod (not shown) of an engine or by a Electromagnet that directly on a corresponding ferromagnetic part of the Cover discs 13 '14' acts or by a pneumatic drive, and ensures here again that at least one of the disks is in front of the one assigned to it Laser located.
  • switches 23, 24 again Control technology release of the laser not covered in each case to create the desired window 2 in FFC 1.
  • the two covers can also be arranged on the casing of a drum, in the FFC runs along the drum axis with the drum around its axis rotates.
  • the drum could also be used to vacuum the unpleasant Removal of the extrudate vapors and gases are used.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Laser Beam Processing (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Processing Of Terminals (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Abstract

The method removes insulation from flat flexible cables or FFCs, esp. extruded FFCs. Two coxial laser beams aligned facing each other are used to remove the extrudate (6). The flat cable is disposed in the plane of symmetry between the two laser sources (3,4) and the two laser sources are activated alternately by means of a control unit (8). A cover is provided before each laser which is only removed when that laser is activated. Independent claims also cover an apparatus for carrying out the method.

Description

Die Erfindung betrifft die Abisolierung von flachen, flexiblen Leitern, sogenannten FFCs.The invention relates to the stripping of flat, flexible conductors, so-called FFCs.

FFCs werden heute in der Industrie und insbesondere im Automobilbau zunehmend gegenüber Rundkabeln verwendet, da sie durch Automaten verarbeitet werden können. Darüber hinaus erlauben sie es, elektrisch leitende Verbindungen in Form von Abzweigstellen zu schaffen, indem rund um die zu kontaktierenden Leiterbahnen das Isolationsmaterial entfernt wird, die beiden FFCs passend übereinander gelegt werden, die zu verbindenden Leiterbahnen miteinander verbunden werden und die Verbindungsstelle sodann mit einem Vergußmaterial oder isolierenden Klebebändern oder dergleichen wieder isoliert wird. Darüber hinaus ist es notwendig, im Endbereich eines jeden FFCs derartige Fenster anzubringen, um Stecker, Buchsen, Kontakte oder dergleichen anbringen zu können.FFCs are becoming increasingly common in industry and especially in automotive engineering compared to round cables because they can be processed by machines. In addition, they allow electrically conductive connections in the form of To create branch points by around the conductor tracks to be contacted Insulation material is removed, the two FFCs are placed on top of each other to match interconnects to be connected and the connection point then again with a potting material or insulating tapes or the like is isolated. In addition, it is necessary to have such in the end area of each FFC Attach windows to attach plugs, sockets, contacts or the like can.

Die Schaffung derartiger Fenster erfolgt im Stand der Technik durch eine Kombination eines Stanzvorganges mit einem Schälvorgang bzw. einer spanenden Bearbeitung und ist aufwendig und wegen der anfallenden Extrudatpartikel unangenehm. Es wurde bereits versucht, die Fenster mittels Lasers herzustellen, doch führt dies zu einer Beeinträchtigung der Oberfläche der Leiterbahnen, die daraufhin chemisch behandelt werden muß, bevor die Weiterverarbeitung möglich ist. Die notwendige chemische Behandlung macht es im Fabrikationsprozeß notwendig, eine Arbeitsstation vorzusehen, bei der mit entsprechenden flüssigen Chemikalien hantiert wird, die über entsprechende Absaugungen und Abflüsse verfügt und der ein Trocknungs- und Kontrollschritt nachfolgen muß, um sicher zu stellen, dass die erhaltenen FFCs einwandfrei sind. Eine derartige Station ist ein Fremdkörper in einer ansonsten elektronisch, mit Lasern und dergleichen arbeitenden Fertigungsstraße und daher tunlichst zu vermeiden.Such windows are created in the prior art by a combination a punching process with a peeling process or machining and is complex and uncomfortable because of the extrudate particles. It was already tries to make the windows by laser, but this leads to an impairment the surface of the conductor tracks, which must then be chemically treated before the Further processing is possible. The necessary chemical treatment does it in Manufacturing process necessary to provide a work station with the corresponding liquid chemicals are handled, which have appropriate suction and drainage and which has to follow a drying and control step to ensure that the FFCs received are flawless. Such a station is a foreign body in an otherwise electronically, with lasers and the like production line and therefore to be avoided if possible.

Es wurde von der Anmelderin ein auf Lasertechnik basierendes Verfahren entwickelt, dass die genannten Probleme beseitigt und zu technologisch einwandfreien Fenstern im FFC führt. Dieses Verfahren wird getrennt von der vorliegenden Anmeldung zum Patent angemeldet. Die vorliegende Anmeldung betrifft die Anordnung zumindest zweier Laser, zwischen denen sich ein FFC befindet, in dem ein Fenster geschaffen werden soll. Das Anordnen zweier, fluchtend zueinander und frontal aufeinander orientierter Laser bei der Herstellung von Fenstern in FFCs ist wegen der Kleinheit der Fenster und der Notwendigkeit, die Fenster von beiden Seiten her zu schaffen, gegeben. Wenn man bei der Bearbeitung zwischen Abisolieren der Oberseite und mit dem Abisolieren der Unterseite den FFC bewegt, erreicht man die benötigte Genauigkeit der Positionierung nur mit unverhältnismäßig großem Aufwand und auch das nur in kleinen Taktraten. Es besteht die ungünstige Möglichkeit, dass durch die Bewegung der FFC von der Abisolierung auf der Oberseite zur Abisolierung auf der Unterseite eines Fensters oder umgekehrt es zu einem Versatz kommt.The applicant has developed a method based on laser technology that the problems mentioned above and to technologically perfect windows in the FFC leads. This process is patented separately from the present application Registered. The present application relates to the arrangement of at least two lasers, between which there is an FFC in which a window is to be created. The Arrange two lasers aligned with one another and facing each other frontally at the Manufacturing windows in FFCs is because of the small size of the windows and the need to to create the windows from both sides. If you look at the Processing between stripping the top and stripping the bottom moving the FFC, the required positioning accuracy can only be achieved with disproportionate effort and only in low clock rates. There is inconvenient possibility that by moving the FFC from the stripping on the Top for stripping on the bottom of a window or vice versa to one Offset is coming.

Dabei hat sich herausgestellt, dass trotz aller Sorgfalt bei der eingesetzten Steuer- und Regeltechnik ein Restrisiko besteht, dass einer der beiden Laser aktiviert wird, wenn sich im FFC bereits ein Fenster befindet, (oder, aus welchen Gründen auch immer, gar kein FFC eingeschoben ist) wodurch er direkt in den anderen, inaktiven Laser strahlt und dort Beschädigungen hervorruft.It turned out that despite all care in the tax and Control technology there is a residual risk that one of the two lasers will be activated when There is already a window in the FFC (or, for whatever reason, none at all FFC is inserted) so that it radiates directly into the other, inactive laser and there Causes damage.

Es ist die Aufgabe der Erfindung, dieses Problem kostengünstig und zuverläßig zu lösen.It is the object of the invention to solve this problem inexpensively and reliably.

Erfindungsgemäß wird dieses Problem zuverlässig und kostengünstig dadurch vermieden, dass vor jedem Laser eine für den Laserstrahl undurchdringliche Abdeckung angeordnet ist, die nur dann aus dem Bereich des Laserstrahls entfernt wird, wenn der zugeordnete Laser aktiviert wird.According to the invention, this problem is reliably and inexpensively avoided by that a cover impenetrable to the laser beam is arranged in front of each laser which is only removed from the area of the laser beam if the assigned one Laser is activated.

Auf diese Weise ist sichergestellt, dass vor dem nicht aktivierten Laser stets eine Abdeckung angeordnet ist, die das Eindringen des Laserstrahls des anderen Lasers auch dann zuverlässig verhindert, wenn sich beispielsweise kein FFC zwischen den Lasern befindet oder ein FFC mit bereits vollständig ausgebildetem Fenster.This ensures that there is always one in front of the non-activated laser Cover is arranged, the penetration of the laser beam of the other laser as well then reliably prevented if, for example, there is no FFC between the lasers or an FFC with a fully developed window.

In einer bevorzugten Ausgestaltung besteht die Abdeckung jedes Lasers aus einer sich drehenden Scheibe mit entsprechenden Löchern oder Ausnehmungen, wobei bevorzugt die beiden Scheiben für die beiden Laser auf einer gemeinsamen Drehachse montiert sind.In a preferred embodiment, the cover of each laser consists of one rotating disc with corresponding holes or recesses, preferably the two disks for the two lasers are mounted on a common axis of rotation.

Die Erfindung wird im Folgenden anhand der Zeichnung näher erläutert. Dabei zeigt die

  • Fig. 1 eine Ausführungsform der Erfindung mit Drehscheiben und die
  • Fig. 2 eine Ausführungsform mit hin-/hergehenden Abdeckungen.
    • The invention is explained in more detail below with reference to the drawing. The shows
  • Fig. 1 shows an embodiment of the invention with turntables and
  • Fig. 2 shows an embodiment with back and forth covers.

    • Die Fig. 1 zeigt, rein schematisch, eine erfindungsgemäße Anordnung. Durch eine derartige Bearbeitungsstation wird ein FFC 1 durch geleitet und an den Stellen, an denen ein Fenster 2 hergestellt werden soll, im Bereich zwischen 2 Lasern 3, 4 angehalten und passend positioniert und fixiert, um das Fenster 2 mit der notwendigen geometrischen Genauigkeit herstellen zu können.1 shows, purely schematically, an arrangement according to the invention. By such Processing station is passed through an FFC 1 and at the points where a Window 2 is to be produced, stopped in the area between 2 lasers 3, 4 and appropriately positioned and fixed to the window 2 with the necessary geometric To be able to produce accuracy.

    Der FFC 1 besteht aus mehreren zueinander parallel in einer Ebene verlaufenden Leiterbahnen 5, von denen zufolge der Führung des Schnittes in der Fig. 1 nur eine sichtbar ist, und dem die Leiterbahnen umgebenden Extrudat 6 aus elektrisch isolierendem, aber in Grenzen plastisch deformierbaren Material.The FFC 1 consists of several parallel to one another in one plane Conductor tracks 5, of which only one according to the guidance of the cut in FIG. 1 is visible, and the extrudate 6, which surrounds the conductor tracks and is made of electrically insulating, but within limits of plastically deformable material.

    Die beiden Laser 3, 4, die in Fig. 1 rein schematisch und nicht entsprechend ihrer wirklichen Anordnung dargestellt sind, sind koaxial entlang einer Achse 7 angeordnet und gegeneinander gerichtet. In den meisten Anwendungsfällen sind die Laser in einigem Abstand vom Objekt angeordnet und die Laserstrahlen werden mittels jeweils einer Optik (die auch flexible Lichtleiter umfassen kann) auf ihr Ziel gerichtet und passend fokussiert. Die mit 3 bzw. 4 bezeichneten Gebilde entsprechen somit am ehesten der Optik, die aber selbstverständlich ebenfalls zum Laser im weiteren Sinn gehört. Die Laser 3, 4 sind im Bereich des zu bildenden Fensters 2 simultan beweglich, um das Fenster mit der gewünschten Größe und Form zu schaffen.The two lasers 3, 4, which are purely schematic in FIG. 1 and do not correspond to them actual arrangement are shown, are arranged coaxially along an axis 7 and directed against each other. In most applications, the lasers are in some Distance from the object and the laser beams are each using an optic (which can also include flexible light guides) aimed at their target and appropriately focused. The structures denoted by 3 and 4 correspond most closely to the optics, however naturally also belongs to the laser in a broader sense. The lasers 3, 4 are in the Area of the window to be formed 2 simultaneously movable to the window with the to create the desired size and shape.

    Wie aus Figur 1 leicht ersichtlich ist, besteht die Gefahr, dass einer der Laser 3, 4 aktiviert wird, obwohl sich keine FFC 1 zwischen ihnen befindet oder obwohl bereits ein Fenster 2 besteht und sich kein Extrudat mehr zwischen den Lasern befindet und diese auf einem Bereich gerichtet sind, in dem sich keine Leiterbahn 5 befindet. Da die Fenster 2 eine größere Fläche aufweisen, als es der Grundfläche der Leiterbahnen 5 entspricht, besteht diese Möglichkeit auch im normalen Betrieb. Da die beiden Laser und ihre Optik völlig symmetrisch aufgebaut sein müssen, kann es in diesem Fall der Aktivierung unweigerlich zu einer Beschädigung oder Zerstörung des jeweils inaktiven Lasers kommen.As can easily be seen from FIG. 1, there is a risk that one of the lasers 3, 4 will activate even though there is no FFC 1 between them or a window 2 exists and there is no more extrudate between the lasers and these on one Are directed area in which there is no conductor track 5. Since the windows 2 one have a larger area than corresponds to the base area of the conductor tracks 5 this possibility also in normal operation. Because the two lasers and their optics completely must have a symmetrical structure, in this case the activation is inevitable the inactive laser is damaged or destroyed.

    Um dies zu verhindern, ist erfindungsgemäß eine in ihrer Gesamtheit mit 8 bezeichnete Unterbrechungsvorrichtung in unmittelbarer Nachbarschaft zum FFC 1 und den Lasern 3, 4 angeordnet. Diese besteht im wesentlichen aus einer durch einen (nicht dargestellten) Motor in Drehung versetzten Welle 9, die zwei Abdeckscheiben 13, 14 trägt, die jeweils einem der Laser 3, 4 zugeordnet sind. Die Rotorwelle 9 steht im wesentlichen normal auf die Ebene des FFC 1 und ist relativ knapp neben dem Rand des FFC 1 angeordnet. Auf diese Weise befinden sich in Abhängigkeit von der Winkellage der Rotorwelle 9 und somit der Abdeckscheiben 13, 14 Abschnitte dieser Scheiben vor dem zugeordneten Laser 3,4 oder nicht. In order to prevent this, according to the invention one is designated 8 in its entirety Interruption device in the immediate vicinity of FFC 1 and lasers 3, 4 arranged. This essentially consists of a by a (not shown) Motor rotated shaft 9, which carries two cover plates 13, 14, each are assigned to one of the lasers 3, 4. The rotor shaft 9 is essentially normal the plane of the FFC 1 and is arranged relatively close to the edge of the FFC 1. On this way, depending on the angular position of the rotor shaft 9 and thus the cover disks 13, 14 sections of these disks in front of the assigned laser 3, 4 or not.

    Die Fig. 1 zeigt jene Winkellage, in der sich die Abdeckscheibe 13 vor dem Laser 3 befindet, während die Abdeckscheibe 14 den Laser 4 frei gibt, so dass dieser aktiviert werden kann. Diese wechselweise Aktivierung wird bevorzugt mittels einer Schaltung vorgenommen, die von der Winkellage der Drehachse 9 und damit der Winkellage die Abdeckscheiben 13, 14 abgeleitet wird. In Fig. 1 ist dies schematisch am unteren Ende der Rotorwelle 9 dargestellt, wo ein Schalter 23 für den Laser 3 und ein Schalter 24 für den Laser 4 angedeutet ist.1 shows that angular position in which the cover plate 13 is in front of the laser 3 is located, while the cover plate 14 releases the laser 4 so that it activates can be. This alternate activation is preferred by means of a circuit made of the angular position of the axis of rotation 9 and thus the angular position Cover plates 13, 14 is derived. In Fig. 1, this is schematically at the lower end of the Rotor shaft 9 shown where a switch 23 for the laser 3 and a switch 24 for the Laser 4 is indicated.

    Selbstverständlich ist es möglich, statt der exzentrischen Abdeckscheiben 13, 14 zahnradähnliche Gebilde vorzusehen und so bei den angestrebten hohen Drehzahlen zu einer dynamisch ausgewuchteten Situation zu kommen. Gleichermaßen ist es möglich, statt einer zahnradartigen Konstruktion Lochscheiben vorzusehen, durch die der gleiche Zweck erfüllt wird. Die Schalter 23, 24 müssen selbstverständlich nicht direkt die Laser 3, 4 aktivieren, sondern geben entsprechende Signale an die eigentliche Steuerelektronik für die beiden Laser. Jedenfalls aber wird durch das Vorsehen der Vorrichtung 8 sichergestellt, dass die beiden Laser 3, 4 einander nicht beschädigen können.Of course, it is possible instead of the eccentric cover disks 13, 14 to provide gear-like structures and thus at the desired high speeds a dynamically balanced situation. Similarly, it is possible instead a gear-like construction to provide perforated disks through which the same purpose is fulfilled. Of course, the switches 23, 24 do not have to be the lasers 3, 4 directly activate, but give appropriate signals to the actual control electronics for the two lasers. In any case, the provision of the device 8 ensures that the two lasers 3, 4 cannot damage each other.

    Auf analoge Weise ist in Fig. 2 eine abgewandelte Konstruktion 18 dargestellt, die auf einer reziproken linearen Bewegung zweier Abdeckscheiben 13' 14' beruht. Die Führung des rein schematischen Schnittes der Figur 2 liegt normal zum schematischen Schnitt der Fig. 1, so dass in dieser Darstellung ersichtlich ist, dass der FFC 1 mehrere Leiterbahnen 5 aufweist und wie diese zueinander angeordnet sind. Die Funktionsweise der Sicherheitsvorrichtung 18 beruht auf dem Verschwenken eines Schwenkhebels 10, beispielsweise durch ein (nicht dargestelltes) Pleuel eines Motors oder durch einen Elektromagneten, der direkt auf einen entsprechend ferromagnetischem Teil der Abdeckscheiben 13' 14' einwirkt oder auch durch einen pneumatischen Antrieb, und sichert auch hier wieder, dass sich zumindest eine der Scheiben vor dem ihr zugeordneten Laser befindet. Durch die entsprechend angeordneten Schalter 23, 24 erfolgt wieder die steuerungstechnische Freigabe des jeweils nicht abgedeckten Lasers zur Schaffung der gewünschten Fenster 2 im FFC 1.In an analogous manner, a modified construction 18 is shown in FIG a reciprocal linear movement of two cover disks 13 '14' is based. The leadership the purely schematic section of FIG. 2 is normal to the schematic section of FIG 1, so that it can be seen in this illustration that the FFC 1 has a plurality of conductor tracks 5 and how they are arranged to each other. How the Safety device 18 is based on the pivoting of a pivot lever 10, for example by a connecting rod (not shown) of an engine or by a Electromagnet that directly on a corresponding ferromagnetic part of the Cover discs 13 '14' acts or by a pneumatic drive, and ensures here again that at least one of the disks is in front of the one assigned to it Laser located. Through the correspondingly arranged switches 23, 24 again Control technology release of the laser not covered in each case to create the desired window 2 in FFC 1.

    Es sind selbstverständlich noch andere Ausführungen möglich, beispielsweise solche, bei denen für jeden der beiden Laser mehrere Abdeckungen vorgesehen sind, was zwar die Vorrichtung größer und komplexer werden läßt, dafür aber erlaubt, die Geschwindigkeit der beweglichen Teile zu verringern, doch ist insbesondere die Ausbildung gemäß Fig.1 vorteilhaft und bevorzugt.Of course, other designs are also possible, for example those in which are provided with several covers for each of the two lasers, which is true Device can be larger and more complex, but it allows the speed of the moving parts, but in particular the design according to Fig.1 advantageous and preferred.

    Es sind in Kenntnis der Erfindung bzw. ihres Grundgedankens auch zahlreiche Abwandlungen der Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens möglich, die auf anderen Bewegungen beruhen:Knowing the invention and its basic idea, there are also numerous Modifications of the device for performing the method according to the invention possible, which are based on other movements:

    So können die beiden Abdeckungen (Verfielfachungen werden nicht mehr extra erwähnt) auf einem gemeinsamen Schlitten sitzen, der eine reziproke Bewegung vollführt, die elektrisch, pneumatisch oder auch hydraulisch bewirkt werden kann, wobei immer eine der Abdeckungen in den Bereich der ihr zugeordneten Laserquelle kommt und die andere aus diesem Bereich entfernt ist.So the two covers (multiplications are no longer mentioned separately) sit on a common sled that performs a reciprocal movement that can be effected electrically, pneumatically or hydraulically, always one of the Covers come in the area of the laser source assigned to them and the other one this area is removed.

    Es können auch die beiden Abdeckungen am Mantel einer Trommel angeordnet sein, in der der FFC entlang der Trommelachse verläuft, wobei sich die Trommel um iher Achse dreht. In diesem Fall könnte die Trommel auch zum Absaugen der unangenehmen, beim Abtragen des Extrudates entstehenden Dämpfe und Gase verwendet werden.The two covers can also be arranged on the casing of a drum, in the FFC runs along the drum axis with the drum around its axis rotates. In this case, the drum could also be used to vacuum the unpleasant Removal of the extrudate vapors and gases are used.

    Alle diese Ausbildungen und andere, nicht genannte, werden von der Erfindung, wie sie in den Ansprüchen definiert ist, umfaßt.All of these designs and others, not mentioned, are of the invention as set forth in is defined in the claims.

    Claims (8)

    Verfahren zum Abisolieren von Flachleitern, sogenannten FFCs (1), insbesondere von extrudierten FFCs mittels Laserstrahlen, dadurch gekennzeichnet, dass zwei koaxial zueinander angeordnete und aufeinander gerichtete Laserstrahlen zur Entfernung des Extrudates (6) verwendet werden, dass sich der Flachleiter im wesentlichen in der Symmetrieebene zwischen den beiden Laserquellen (3, 4) befindet und dass die beiden Laserquellen alternierend aktiviert werden.Method for stripping flat conductors, so-called FFCs (1), in particular extruded FFCs by means of laser beams, characterized in that two coaxially arranged and mutually directed laser beams are used to remove the extrudate (6), that the flat conductor is essentially in the plane of symmetry between the two laser sources (3, 4) and that the two laser sources are activated alternately. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zumindest während der Aktivierung einer der Laserquellen (3, 4) eine laserstrahlundurchdringliche Abdeckung (13, 14) zwischen den Flachleiter (1) und die nicht aktivierte Laserquelle (3, 4) eingebracht wird.A method according to claim 1, characterized in that at least during the activation of one of the laser sources (3, 4) a cover (13, 14) which is impermeable to laser beams is introduced between the flat conductor (1) and the non-activated laser source (3, 4). Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass zwei Abdeckungen (13, 14) vorgesehen sind, die miteinander mechanisch so verbunden sind, dass sich im Zuge ihrer gemeinsamen Bewegung stets zumindest eine der Abdeckungen zwischen dem FFC und der ihr zugeordneten Laserquelle(3, 4) befindet.Method according to Claim 2, characterized in that two covers (13, 14) are provided which are mechanically connected to one another in such a way that in the course of their joint movement at least one of the covers between the FFC and the laser source (3, 4) assigned to it ) is located. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwei Laserquellen (3, 4), gegebenenfalls gespeist von einem gemeinsamen Laser, einander koaxial positioniert diametral gegenüberstehen, dass im wesentlichen in der Symmetrieebene zwischen den beiden Laserquellen Führungs- und Positioniervorrichtungen für den abzuisolierenden Flachleiter (1) vorgesehen sind und dass eine Steuereinheit (8) vorgesehen ist, durch die die beiden Laserquellen (3, 4) alternierend aktiviert werden.Device for carrying out the method according to one of claims 1 to 3, characterized in that two laser sources (3, 4), optionally fed by a common laser, are diametrically opposed to one another in a coaxially positioned manner, that essentially in the plane of symmetry between the two laser sources guide and positioning devices are provided for the flat conductor (1) to be stripped and that a control unit (8) is provided, by means of which the two laser sources (3, 4) are activated alternately. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass auf jeder Seite des Flachleiters (1) zumindest eine Abdeckung (13, 14) vorgesehen ist, die in Abhängigkeit von der Steuereinheit (8) in den Bereich der zugeordneten Laserquelle (3, 4) gebracht oder aus ihm entfernt werden.Apparatus according to claim 4, characterized in that at least one cover (13, 14) is provided on each side of the flat conductor (1), which, depending on the control unit (8), is brought into the area of the associated laser source (3, 4) or be removed from it. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Abdeckungen (13, 14) auf einer gemeinsamen, rotierenden, Welle (9) angeordnet sind und dass die Aktivierung der Laserquellen (3, 4) in Abhängigkeit von der Winkellage der rotierenden Welle (9) erfolgt. Apparatus according to claim 5, characterized in that the covers (13, 14) are arranged on a common rotating shaft (9) and that the activation of the laser sources (3, 4) as a function of the angular position of the rotating shaft (9) he follows. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Abdeckungen (13', 14') mit einer Wippe (9') verbunden sind, durch die hin- und hergehende Bewegung der Wippe (9') abwechselnd in den bzw. aus dem Bereich der zugeordneten Laserquelle (3, 4) geschoben werden und dass die Aktivierung der Laserquellen in Abhängigkeit von der Winkellage der Wippe erfolgt.Apparatus according to claim 5, characterized in that the covers (13 ', 14') are connected to a rocker (9 ') by the reciprocating movement of the rocker (9') alternately in or out of the area assigned laser source (3, 4) and that the activation of the laser sources takes place depending on the angular position of the rocker. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die beiden Abdeckungen auf einem gemeinsamen Schlitten und in Bewegungsrichtung des Schlittens zueinander versetzt angeordnet sind und dass die Aktivierung der Laserquellen in Abhängigkeit von der Position des Schlittens erfolgt.Apparatus according to claim 5, characterized in that the two covers are arranged offset on one another on a common carriage and in the direction of movement of the carriage and that the activation of the laser sources takes place as a function of the position of the carriage.
    EP02450195A 2002-09-03 2002-09-03 Stripping of FFCs Expired - Lifetime EP1398855B1 (en)

    Priority Applications (6)

    Application Number Priority Date Filing Date Title
    DE50206666T DE50206666D1 (en) 2002-09-03 2002-09-03 Stripping of FFCs
    EP02450195A EP1398855B1 (en) 2002-09-03 2002-09-03 Stripping of FFCs
    ES02450195T ES2263763T3 (en) 2002-09-03 2002-09-03 STARTING THE INSULATION OF FLAT CABLES.
    AT02450195T ATE325451T1 (en) 2002-09-03 2002-09-03 STRIPping FFCS
    JP2003311762A JP2004090092A (en) 2002-09-03 2003-09-03 Stripping of ffc
    US10/654,519 US6936788B2 (en) 2002-09-03 2003-09-03 Stripping of FFCs

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP02450195A EP1398855B1 (en) 2002-09-03 2002-09-03 Stripping of FFCs

    Publications (2)

    Publication Number Publication Date
    EP1398855A1 true EP1398855A1 (en) 2004-03-17
    EP1398855B1 EP1398855B1 (en) 2006-05-03

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    EP02450195A Expired - Lifetime EP1398855B1 (en) 2002-09-03 2002-09-03 Stripping of FFCs

    Country Status (6)

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    US (1) US6936788B2 (en)
    EP (1) EP1398855B1 (en)
    JP (1) JP2004090092A (en)
    AT (1) ATE325451T1 (en)
    DE (1) DE50206666D1 (en)
    ES (1) ES2263763T3 (en)

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    US20070193985A1 (en) * 2006-02-20 2007-08-23 Howard Patrick C Method for removing a coating from a substrate using a defocused laser beam
    AT8993U1 (en) * 2006-03-06 2007-03-15 Magna Steyr Fahrzeugtechnik Ag LEVEL SENSOR FOR CRYOGENIC LIQUIDS AND CONTAINERS WITH SUCH A
    JP4670767B2 (en) * 2006-08-01 2011-04-13 住友電装株式会社 Flat wiring member processing equipment
    DE102013006361A1 (en) 2013-04-12 2014-04-03 Daimler Ag Stripping electrical conductor, comprises partially removing insulation layer, which partially surrounds electrical conductor, by means of laser radiation, and mechanically roughening electrical conductors after removal of insulation layer
    US9085047B2 (en) * 2013-05-10 2015-07-21 Corning Optical Communications LLC Coating removal systems for optical fibers

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    US5940963A (en) * 1997-07-21 1999-08-24 Tensolite Company Finished mass terminated end for a miniature coaxial ribbon cable and method of producing same

    Also Published As

    Publication number Publication date
    US20040118822A1 (en) 2004-06-24
    ATE325451T1 (en) 2006-06-15
    JP2004090092A (en) 2004-03-25
    EP1398855B1 (en) 2006-05-03
    US6936788B2 (en) 2005-08-30
    ES2263763T3 (en) 2006-12-16
    DE50206666D1 (en) 2006-06-08

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