EP1347142B2 - Process and device for mechanically applying a spacer ribbon onto a glass pane - Google Patents

Process and device for mechanically applying a spacer ribbon onto a glass pane Download PDF

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EP1347142B2
EP1347142B2 EP03003854A EP03003854A EP1347142B2 EP 1347142 B2 EP1347142 B2 EP 1347142B2 EP 03003854 A EP03003854 A EP 03003854A EP 03003854 A EP03003854 A EP 03003854A EP 1347142 B2 EP1347142 B2 EP 1347142B2
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Prior art keywords
band
rollers
pair
compensating
application
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German (de)
French (fr)
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EP1347142A3 (en
EP1347142A2 (en
EP1347142B1 (en
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Ag Tecnopat
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Tecnopat AG
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Tecnopat AG
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Priority to DE2002112359 priority patent/DE10212359B4/en
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673Assembling the units
    • E06B3/67326Assembling spacer elements with the panes
    • E06B3/6733Assembling spacer elements with the panes by applying, e.g. extruding, a ribbon of hardenable material on or between the panes
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1788Work traversing type and/or means applying work to wall or static structure

Description

  • Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum maschinellen Applizieren eines elastoplastischen Bandes als Abstandhalter auf einer Glasscheibe, die zum Zusammenbau mit mindestens einer weiteren Glasscheibe zu einer Isolierglaseinheit bestimmt ist.The invention relates to a method and a device for the mechanical application of an elastoplastic strip as a spacer on a glass pane, which is intended for assembly with at least one further glass pane to form an insulating glass unit.
  • Üblicherweise bestehen die Abstandhalter zwischen einer zwei oder auch mehr Glasscheiben umfassenden Isolierglaseinheit aus Aluminium- oder Stahlhohlprofilen.Usually, the spacers between a two or more glass panes comprising insulating glass unit made of aluminum or steel hollow sections.
  • Aus der DE-A- 30 02 904 ist jedoch auch schon ein häufig als "Swiggle-Strip" bezeichneter Abstandhalter in Form eines Bandes mit Rechteckquerschnitt bekannt, das, mit Schutzfolien versehen, von einer Vorratstrommel oder -haspel kommt und mittels einer mit einem wendbaren Kopf ausgestatteten Vorrichtung auf die Glasscheibe aufgebracht wird. Dieser bandförmige Abstandhalter auf der Basis von Butylkautschuk ist zäh-plastisch, stark klebend (was zur Erzielung einer gasdichten Verbindung zunächst mit der ersten und später der zweiten Glasscheibe der Isolierglaseinheit erwünscht ist), und hat eine stark temperaturabhängige Viskosität.From the DE-A-30 02 904 However, a spacer, also referred to as a "swiggle strip" in the form of a strip with a rectangular cross-section, which is provided with protective films, comes from a storage drum or reel and is applied to the glass pane by means of a device equipped with a reversible head. This band-shaped spacer based on butyl rubber is tough-plastic, highly adhesive (which is desirable to achieve a gas-tight connection first with the first and then the second glass pane of the insulating glass unit), and has a highly temperature-dependent viscosity.
  • In jüngerer Zeit sind wesentlich weniger temperaturempfindliche elastoplastische Abstandhalterbänder, vermutlich auf Polyurethanbasis, entwickelt worden, die ebenfalls Rechteckquerschnitt haben, wesentlich form- und abmessungsbeständiger als der sogenannte "Swiggle-Strip" sind, auf der späteren Außenseite eine Kaschierung aus Aluminiumfolie haben und nur auf den beiden zur Verklebung mit den Glasscheiben bestimmten Schmalseiten mit einer dünnen, bis zum Applizieren mit Schutzfolien abgedeckten Kleber- und Dichtschicht versehen sind.More recently, much less temperature-sensitive elastoplastic spacer tapes, presumably polyurethane-based, have been developed, which also have rectangular cross-section, are much more dimensionally and dimensionally stable than the so-called "Swiggle-Strip" on the later outside have a lamination of aluminum foil and only on the both intended for bonding with the glass panes narrow sides are provided with a thin, covered until applied with protective films adhesive and sealing layer.
  • Bisher wurden diese elastoplastischen Abstandhalterbänder von Hand auf die erste Glasscheibe aufgesetzt und dabei nötigenfalls Eckgehrungen ausgestanzt. Bei einem maschinellen Applizieren mit einer Vorrichtung der beispielsweise aus der DE A 37 26 274 bekannten Art hat sich gezeigt, daß die Ecken des Abstandhalters einfallen oder nach außen, zum Rand der Glasscheibe, gedrückt werden. Auch öffnet sich mitunter die Stoßstelle zwischen Anfang und Ende des Bandes oder lange gerade Abschnitte wellen sich. Die Ursache dieser Probleme wurde darin gesehen, daß das Abstandhalterband nicht mit konstanter Geschwindigkeit aufgetragen wird. Vielmehr beginnt das Applizieren mit der Geschwindigkeit Null, erreicht einen maximalen Wert, ist in der ersten Ecke wieder gleich Null, steigt wieder an bis zur nächsten Ecke, usw. Deshalb wurde zunächst vermutet, daß die geschilderten, unbefriedigenden Arbeitsergebnisse auf Schwierigkeiten bei der Synchronisierung der Bewegungen der zahlreichen intermittierend arbeitenden Antriebe einer derartigen Vorrichtung zurückzuführen sind.So far, these elastoplastic spacer bands were placed by hand on the first glass and thereby punched out if necessary Eckgehrungen. In a machine application with a device, for example, from DE-A 37 26 274 known type has been found that the corners of the spacer incident or to the outside, to the edge of the glass, pressed. Also sometimes opens the junction between the beginning and end of the tape or long straight sections waves. The cause of these problems was seen in the fact that the spacer band is not applied at a constant speed. Rather, the application starts at zero speed, reaches a maximum value, is in the first corner again equal to zero, rises again to the next corner, etc. Therefore, it was initially assumed that the described, unsatisfactory work results to difficulties in synchronizing the Movements of the numerous intermittently operating drives of such a device are due.
  • Ein Verfahren mit den Merkmalen des Oberbegriffs des Anspruchs 1 ist aus der US-A-5888341 bekannt.A method having the features of the preamble of claim 1 is known from US-A-5888341 known.
  • Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zu schaffen, die ein sauberes, paßgenaues Applizieren elastoplastischer Abstandhalterbänder ermöglichen.The invention has for its object to provide a method and an apparatus that allow a clean, accurate application of elastoplastic spacer bands.
  • Verfahrensmäßig ist diese Aufgabe erfindungsgemäß durch die Schritte gemäß Anspruch 1 gelöst.Procedurally, this object is achieved by the steps according to claim 1.
  • Der Erfindung liegt die Erkenntnis zugrunde, daß die bei Einsatz entsprechend modifizierter, bekannter Vorrichtungen zum Auftragen plastischer Abstandhalterbänder beobachteten Qualitätsmängel nicht durch die elektrische Steuerung der Vorrichtung, also die Maschinensteuerung, verursacht sind, sondern durch das Material selbst in Verbindung mit der bei den bisher bekannten Vorrichtungen üblichen Art des Bandtransports, der auf das Band einen wenn auch geringen Zug und/oder Schub ausübt. Während die dadurch hervorgerufenen, geringen Dehnungen und Stauchungen wegen der Plastizität des Bandes unschädlich waren, wurde diesseits festgestellt, daß das elastoplastische Abstandhalterband auf Polyurethanbasis eine Art Formgedächtnis hat, das dazu führt, daß das durch den Bandtransport gelängte und/oder gestauchte Band bestrebt ist, seine ursprüngliche Länge und seinen ursprünglichen Querschnitt wieder anzunehmen, wobei dieser Rückstellvorgang sich mit abnehmender Geschwindigkeit über einen Zeitraum von mehreren Stunden erstrecken kann.The invention is based on the finding that the quality deficiencies observed when using correspondingly modified, known devices for applying plastic spacer strips are not caused by the electrical control of the device, ie the machine control, but by the material itself in conjunction with the previously known ones Devices usual type of tape transport, which exerts on the tape, albeit small train and / or thrust. While the resulting low elongations and compressions were harmless due to the plasticity of the tape, it was found that the polyurethane-based elastoplastic spacer tape has some form of memory which tends to cause the tape elongated and / or compressed to tend to be bandy, to resume its original length and its original cross-section, this return operation being able to extend with decreasing speed over a period of several hours.
  • Der Kerngedanke der Erfindung besteht deshalb ausgehend von dieser Erkenntnis darin, das Band von der Vorratstrommel bis zur Applikationsstelle ungeachtet der mehrfach wechselnden Applikationsgeschwindigkeiten frei von Zugspannungen oder Schubspannungen zu führen.Therefore, the core idea of the invention, starting from this knowledge, is to guide the band from the supply drum to the application site free from tensile stresses or shear stresses, regardless of the multiple application rates.
  • Dabei wird vorausgesetzt, daß das Band durch aktives Abrollen von der Vorratstrommel und anschließende reibungsarme Führung bis zu dem ersten angetriebenen Rollenpaar keine Längungen oder Stauchungen erleidet. Das zweite Rollenpaar sitzt am besten nahe an der Applikationsstelle. In der Ausgleichsstrecke zwischen dem ersten und dem zweiten Rollenpaar wirken auf das Band, abgesehen von der Schwerkraft, keine äußeren Kräfte. Die Ausgleichsstrecke, die in der Regel im Bogen geführt ist, wirkt als, Puffer für kleine Über- oder Unterlieferungen des Bandes durch das erste Rollenpaar im Verhältnis zu der Geschwindigkeit, mit der das zweite Rollenpaar das Band der Applikationsstelle zuführt. Bei einer Überlieferung weicht das Band in der Ausgleichsstrecke seitlich, quer zu seiner Laufrichtung, aus und beschreibt damit einen größeren Bogen. Bei einer Unterlieferung verringert sich hingegen die Länge und verkleinert sich dementsprechend der Bogen, den das Band in der Ausgleichsstrecke beschreibt. Dabei ist zu berücksichtigen, daß die Bandgeschwindigkeit während des Applizierens nicht konstant ist sondern sich im Regelfall (bei einer rechteckigen Glasscheibe) mindestens vier Mal zwischen Null und einem Maximalwert ändert. Die geringfügigen Gleichlaufunterschiede, die u.a. auch durch unterschiedlichen Schlupf des Bandes relativ zu dem ersten und dem zweiten Rollenpaar auftreten können, werden durch die Lageänderungen des gewissermaßen schlaff durch die Ausgleichsstrecke geführten Bandes ausgeglichen. Gleichzeitig wird die Bandlänge in der Ausgleichsstrecke überwacht. Bei Über- oder Unterschreitung der vorgegebenen (mittleren) Soll-Länge wird die Drehzahl und damit die Umfangsgeschwindigkeit des ersten Rollenpaares so nachgeregelt, daß die Soll-Länge wieder erreicht wird. Die Drehzahl und damit die Umfangsgeschwindigkeit des zweiten Rollenpaares wird hingegen ausschließlich entsprechend der augenblicklichen Applikationsgeschwindigkeit geregelt, die von der Geschwindigkeit der Relativbewegung zwischen dem Applikationswerkzeug und der Glasscheibe abhängt.It is assumed that the tape by actively rolling from the storage drum and subsequent low-friction guidance up to the first pair of driven rollers suffers no elongations or compressions. The second pair of rollers is best located near the point of application. In the balancing section between the first and the second pair of rollers act on the band, apart from gravity, no external forces. The equalizing section, which is usually arched, acts as a buffer for small over or under delivery of the strip by the first pair of rolls in proportion to the rate at which the second pair of rolls feed the strip to the point of application. In a tradition, the band in the balancing line deviates laterally, transverse to its direction, and thus describes a larger arc. On the other hand, underdelivery reduces the length and accordingly reduces the arc that the band describes in the equalization path. It should be noted that the tape speed during application is not constant but usually (at a rectangular glass) at least four times between zero and a maximum value changes. The slight differences in synchronization, which may also occur, inter alia, due to different slippage of the band relative to the first and the second pair of rollers, are compensated by the changes in position of the band guided to a certain extent flaccidly through the compensation section. At the same time, the tape length in the compensation section is monitored. When exceeding or falling short of the predetermined (average) set length, the speed and thus the peripheral speed of the first pair of rollers is readjusted so that the desired length is reached again. The speed and thus the peripheral speed of the second roller pair, however, is controlled exclusively according to the instantaneous application speed, which depends on the speed of the relative movement between the application tool and the glass pane.
  • Die Bandlänge in der Ausgleichsstrecke kann auf sehr einfache Weise mittels mindestens eines auf die Lage des Bandes ansprechenden Sensors bestimmt werden, weil sich das Band in der Ausgleichsstrecke je nach Über- oder Unterlieferung quer zu seiner Transportrichtung bewegt. Geeignete Sensoren sind dem Fachmann bekannt. Zum Beispiel können zwei Sensoren in Form von zwei Lichtschranken eingesetzt werden, von denen die eine das zulässige Maximum der Abweichung des Bandes von der gestreckten Lage und die andere die maximal zulässige Annäherung an diese gestreckte Lage feststellt.The strip length in the equalizing section can be determined in a very simple manner by means of at least one sensor responding to the position of the strip, because the strip moves in the compensating section, transversely to its transport direction, depending on overfeeding or underdelivery. Suitable sensors are known to the person skilled in the art. For example, two sensors can be used in the form of two light barriers, one of which detects the maximum permissible deviation of the strip from the stretched layer and the other the maximum allowable approach to this stretched position.
  • Zweckmäßig wird die Umfangsgeschwindigkeit des ersten Rollenpaares in Abhängigkeit von der mittels des mindestens einen Sensors festgestellten Lage des Bandes in der Ausgleichsstrecke erhöht oder verringert, so daß das Band in der Ausgleichsstrecke spannungsfrei zumindest in der Nähe einer vorgegebenen Soll-Lage bleibt.Suitably, the peripheral speed of the first pair of rollers is increased or decreased in dependence on the determined by means of at least one sensor position of the band in the compensation path, so that the band in the compensation path remains tension-free at least in the vicinity of a predetermined desired position.
  • Bevorzugt wird das Band in der Ausgleichsstrecke zumindest im wesentlichen durchhangfrei abgestützt, um zu verhindern, daß das Band unter dem Einfluß seines eigenen Gewichtes eine Längung erfährt.Preferably, the band is supported in the compensation path at least substantially without sagging, to prevent the band under the influence of its own weight undergoes elongation.
  • Das Band kann in der Ausgleichsstrecke in einem Bogen mit vor allem von der Differenz der Umfangsgeschwindigkeiten des ersten und des zweiten Rollenpaares abhängigem Radius geführt und abgestützt werden. Dies kann insbesondere durch mehrere Führungsrollen und Führungswalzenpaare erreicht werden.The band can be guided and supported in the compensating section in an arc with a radius that depends primarily on the difference between the peripheral speeds of the first and second roller pairs. This can be achieved in particular by a plurality of guide rollers and guide roller pairs.
  • Am besten wird das Band mittels eines um eine zur Ebene der Glasscheibe orthogonale Achse wendbaren Applizierkopfes zugeführt und auf diesem werden das erste Rollenpaar und alle nachfolgenden Bandtransport- und Bandführungseinrichtungen angeordnet. Zwar sind solche wendbaren Applizierköpfe im Zusammenhang mit dem Auftragen von plastischen Abstandhalterrahmen an sich bekannt. Obwohl das elastoplastische Band ohne weiteres entsprechend den Drehbewegungen des Applizierkopfes um seine Längsachse verdreht werden kann, so daß die hier vorgeschlagenen Bandtransport- und Bandführungseinrichtungen mit Ausnahme des zweiten Rollenpaares auch außerhalb des Applizierkopfes angeordnet werden könnten, ist es trotz des größeren konstruktiven Aufwandes für den Applizierkopf besser, die Bandtransport- und Bandführungseinrichtungen auf diesem anzuordnen, um eine spannungsfreie Zuführung des Band zu der Applizierstelle zu gewährleisten.The band is best supplied by means of an applicator head which can be turned around an axis orthogonal to the plane of the glass pane and on which the first pair of rollers and all subsequent band transport and band guiding devices are arranged. Although such reversible Applizierköpfe in connection with the application of plastic spacer frame are known per se. Although the elastoplastic band can be readily rotated according to the rotational movements of the Applizierkopfes about its longitudinal axis, so that the proposed tape transport and tape guiding devices could be arranged outside the Applizierkopfes with the exception of the second pair of rollers, it is despite the greater design effort for the Applizierkopf better to arrange the tape transport and tape guide devices on this, in order to ensure a tension-free feeding of the tape to the Applizierstelle.
  • Ausgehend von eine aus der DE-A-3 726 274 bekannten Vorrichtung zum maschinellen Applizieren eines elastoplastischen Abstandhalterbandes auf einer Glasscheibe, mit folgenden Merkmalen
    • einer etwas gegen die Lotrechte geneigten Stützwand für die Glasscheibe,
    • mindestens einem Horizontalförderer im Bereich des Unterrandes der Stützwand,
    • einer Säule in einer zur Ebene der Stützwand parallelen Ebene,
    • einem an der Säule zwischen dem Unterrand und dem Oberrand der Stützwand verfahrbaren Applizierkopf, der um eine zur Ebene der Stützwand orthogonale Achse schrittweise wendbar ist,
    • Einrichtungen zum Zuführen des Bandes von einer Vorratstrommel sowie zum Andrücken und maßgenauen Abschneiden des Bandes,
    • einer die Bewegungen der Teile der Vorrichtung und den Transport des Bandes messenden, steuernden und überwachenden Maschinensteuerung,
    ist die der Erfindung zugrunde liegende Aufgabe durch die Kennzeichnenden Merkmale des Anspruches 7 gelöst.Starting from one from the DE-A-3 726 274 known device for the machine application of an elastoplastic spacer strip on a glass plate, with the following features
    • a slightly inclined against the perpendicular support wall for the glass,
    • at least one horizontal conveyor in the region of the lower edge of the retaining wall,
    • a column in a plane parallel to the plane of the supporting wall,
    • an applicator head which can be moved on the column between the lower edge and the upper edge of the support wall and which can be turned stepwise about an axis which is orthogonal to the plane of the support wall,
    • Means for feeding the tape from a supply drum and for pressing and accurately cutting the tape,
    • a machine control which measures the movements of the parts of the device and the transport of the belt, controlling and monitoring
    the object underlying the invention is achieved by the characterizing features of claim 7.
  • Die Vorratstrommel sollte in der Regel einen über die Maschinensteuerung regelbaren Antrieb haben.The storage drum should generally have a controllable via the machine control drive.
  • Eine bevorzugte Ausführungsform dieser Vorrichtung zeichnet sich dadurch aus, daß die Ausgleichsstrecke zwischen dem ersten und dem zweiten Rollenpaar mindestens eine schlitzförmige Führung für das Band umfaßt, wobei die lange Achse des Führungsschlitzes im wesentlichen orthogonal zu der Bandtransportrichtung verläuft, und die Schlitzbreite nur wenig größer als die Breite des Bandes ist.A preferred embodiment of this device is characterized in that the balancing section between the first and second roller pair comprises at least one slit-shaped guide for the belt, wherein the long axis of the guide slot is substantially orthogonal to the tape transport direction, and the slot width only slightly larger than the width of the band is.
  • Zweckmäßig ist an der Applizierstelle ein schwenkbarer Hebel angeordnet, der insbesondere während des Wendens des Applizierkopfes das Band nahe der Applizierstelle unterstützt.A pivotable lever is expediently arranged at the point of application, which supports the band near the application point, in particular during the turning of the application head.
  • Die Erfindung wird nachfolgend anhand der Zeichnung erläutert. Es zeigt:
  • Fig. 1
    eine perspektivische Darstellung eines Applizierkopfes einer Vorrichtung zum Applizieren eines elastoplastischen Abstandhalterbandes
    Fig. 2
    den gleichen Applizierkopf, gesehen etwa aus der Richtung "A" in Fig. 1
    Fig. 3
    eine der Fig. 2 entsprechende, etwas vereinfachte Aufsicht und
    Fig. 4
    eine Schrägaufsicht mit Band.
    The invention will be explained below with reference to the drawing. It shows:
    Fig. 1
    a perspective view of an Applizierkopfes a device for applying an elastoplastic spacer strip
    Fig. 2
    the same application head, seen from the direction "A" in Fig. 1
    Fig. 3
    one of the Fig. 2 corresponding, somewhat simplified supervision and
    Fig. 4
    an oblique supervision with tape.
  • Die Vorrichtung zum maschinellen Applizieren eines elastoplastischen Abstandhalterbandes auf eine Glasscheibe entsprechend dem hier vorgeschlagenen Verfahren umfasst eine etwas gegen die Lotrechte geneigte Stützwand für die Gasscheibe, mehrere getrennt steuerbare Horizontalförderer im Bereich des Unterrandes der Stützwand, im Abstand von der Stützwand eine zu dieser parallele Säule und einen an der Säule aufwärts und abwärts verfahrbaren Schlitten, der einen Applizierkopf trägt. Alle vorgenannten Teile sind an sich bekannt, ebenso deren Bewegungsabläufe. Mit Vorrichtungen dieser Gattung werden unter anderem die Randfugen zwischen eine Isolierglaseinheit bildenden Glasscheiben mit Versiegelungsmasse verfüllt oder plastische Abstandhalter aufgebracht. In der Zeichnung ist deshalb lediglich der besondere Applizierkopf zum Applizieren eines elastoplastischen Abstandhalterbandes dargestellt.The device for the mechanical application of an elastoplastic spacer strip on a glass according to the method proposed here comprises a slightly inclined against the perpendicular support wall for the gas disk, a plurality of separately controllable horizontal conveyor in the lower edge of the support wall, at a distance from the support wall a parallel to this column and a slide movable up and down the column supporting an applicator head. All the above parts are known per se, as well as their movements. With devices of this type, inter alia, the edge joints between an insulating glass unit forming glass sheets are filled with sealant or applied plastic spacers. In the drawing, therefore, only the special Applizierkopf for applying an elastoplastic spacer tape is shown.
  • Der Applizierkopf, der zum Abfahren der in der Regel vier Seitenränder einer Glasscheibe in an sich bekannter Weise um die Achse B-B in Fig. 3 schrittweise wendbar ist, umfasst, in Richtung des Bandtransportes von einer nicht dargestellten Vorratstrommel zur Applizierstelle, folgende, im vorliegenden Zusammenhang funktionswesentlichen Teile:
    • Eine erster Bandtransport 1 wird über eine Maschinensteuerung 50 und zwei Zahnriemen 2, 2' (vergl. Fig. 2) regelbar angetrieben und umfasst vier Rollen 11, 12, 13, 14, von denen jeweils die Rollenpaare 11 und 13 sowie 12 und 14 zusammenwirken und optimal für Bänder unterschiedlicher Breite bestimmt sind. Dem Bandtransport 1 wird das Band stehend oder hochkant von der nicht dargestellten Vorratstrommel spannungsfrei zugeführt. Hierzu ist die Vorratstrommel mit einem über die Maschinensteuerung geregelten Abwickelantrieb versehen.
    • An den Bandtransport 1 schließt sich eine im Bogen geführte Ausgleichstrecke 3 (vgl. Fig. 3) an, in der das Band zwischen schlitzförmigen Führungen, bestehend aus drei Führungs- und Stützrollenpaaren 31, 32, 33, so geführt wird, dass es quer zu seiner Transportrichtung in der Seitenebene, jedoch nicht in der Höhenebene, ausweichen kann.
    • Die Ausgleichstrecke 3 endet an einer sechs Rollen umfassenden Bandführung 4, auf welche drei Rollenpaare 5, 6 und 7 folgen, die das Band um 90° in eine "liegende" Orientierung wenden. Weitere Rollen 8 übernehmen die Seitenführung.
    • Dann läuft das Band in einen zweiten Bandtransport 9 ein, der zwei zusammenwirkende Rollen 91 und 92 umfasst, die über einen Zahnriemen 93 von der Maschinensteuerung regelbar angetrieben werden.
    • Der zweite Bandtransport 9 führt das Band der eigentlichen Applizierstelle zu. Diese umfasst neben den üblichen Andruckrollen 10a (für die horizontalen Schenkel des späteren Rahmens) und 10b (für die vertikalen Schenkel des späteren Rahmens) die ebenfalls üblichen und deshalb nicht näher erläuterten Einrichtungen zum Ausstanzen der Gehrungskeile an den Stellen, an denen der Applizierkopf zur Ausbildung einer Ecke gewendet wird sowie einen Hebel 10c mit einer Bandauflage 10d (vgl. Fig. 2). Der Hebel 10c ist schwenkbar und unterstützt im Wiederausfall das Band, insbesondere bei Annäherung an eine zu bildende Ecke und/oder vor, während und nach dem Abschneiden des Bandes am Ende des Abfahrens der Kontur der Glasscheibe zur Erzeugung eines geschlossenen Abstandhalterrahmens.
    • In der Ausgleichstrecke 3, nämlich an den Schmalseiten des durch das Rollenpaar 32 begrenzten Führungsschlitzes, sind an der Bogeninnenseite ein erster Sensor 21 und an der Bogenaußenseite ein zweiter Sensor 22 angeordnet. Die Sensoren 21, 22, bei denen es sich z.B. um Reflexlichtschranken handeln kann, sind mit der Maschinensteuerung verbunden und geben bei Annäherung des Bandes ein Signal. Nähert sich das Band infolge einer Unterlieferung durch den Bandtransport 1 im Verhältnis zu der durch die augenblickliche Appliziergeschwindigkeit bestimmten Umfangsgeschwindigkeit des Bandtransportes 9 dem Sensor 21, dann erhöht auf dessen Signal die Maschinensteuerung geringfügig die Antriebsdrehzahl und damit die Umfangsgeschwindigkeit des entsprechenden Rollenpaares 11, 13 (oder 12, 14) des Bandtransportes 1 und verhindert damit, dass auf das Band eine Zugspannung ausgeübt wird. Nähert sich umgekehrt das Band infolge einer Überlieferung durch den Bandtransport 1 dem bogenaußenseitigen Sensor 22, so gibt dieser das entsprechende Signal an die Maschinensteuerung, die daraufhin die Umfangsgeschwindigkeit des entsprechenden Rollenpaares des Bandtransportes 1 geringfügig verringert und dadurch verhindert, dass das Band vor dem Bandtransport 9 gestaucht und in diesem Zustand appliziert wird.
    The Applizierkopf, which is used for traversing the usually four side edges of a glass sheet in a conventional manner about the axis BB in Fig. 3 is stepwise reversible, comprises, in the direction of the tape transport from a storage drum, not shown, to the applicator, the following, in the present context functionally essential parts:
    • A first belt transport 1 is via a machine control 50 and two toothed belts 2, 2 '(see FIG. Fig. 2 ) driven and includes four rollers 11, 12, 13, 14, of which each pair of rollers 11 and 13 and 12 and 14 cooperate and are optimally intended for bands of different widths. The tape transport 1, the tape is fed vertically or upright from the storage drum, not shown, stress-free. For this purpose, the storage drum is provided with an unwinding drive regulated by the machine control.
    • The belt transport 1 is followed by a compensating section 3 guided in the arc (cf. Fig. 3 ), in which the band between slot-shaped guides, consisting of three guide and support roller pairs 31, 32, 33, is guided so that it can dodge transversely to its transport direction in the side plane, but not in the vertical plane.
    • The equalizer section 3 terminates at a six-roll tape guide 4, followed by three pairs of rollers 5, 6 and 7, which turn the tape by 90 ° in a "lying" orientation. Other rollers 8 take over the side guide.
    • Then, the belt enters a second belt transport 9, which comprises two cooperating rollers 91 and 92 which are controllably driven by the machine control via a toothed belt 93.
    • The second belt transport 9 leads the belt to the actual application point. This includes in addition to the usual pinch rollers 10a (for the horizontal leg of the later frame) and 10b (for the vertical leg of the later frame) also conventional and therefore not further explained means for punching the miter wedges at the points where the Applizierkopf for training a corner is turned and a lever 10c with a band support 10d (see. Fig. 2 ). The lever 10c is pivotable and, in the event of re-occurrence, assists the belt, in particular when approaching a corner to be formed and / or before, during and after cutting off the belt at the end of the travel of the contour of the glass pane to produce a closed spacer frame.
    • In the compensating section 3, namely on the narrow sides of the guide slot bounded by the pair of rollers 32, a first sensor 21 and on the outside of the arch are on the inner side of the sheet second sensor 22 is arranged. The sensors 21, 22, which may be, for example, reflex light barriers are connected to the machine control and give a signal when approaching the band. If the tape approaches the sensor 21 as a result of being underdelivered by the tape transport 1 in relation to the peripheral speed of the tape transport 9 determined by the instantaneous application speed, then the machine controller slightly increases the drive speed and thus the peripheral speed of the corresponding pair of rollers 11, 13 (or 12, 14) of the tape transport 1 and thus prevents the tape from being subjected to tensile stress. Conversely, the tape approaches due to a tradition by the tape transport 1 the bow outer-side sensor 22, this gives the appropriate signal to the machine control, which then reduces the peripheral speed of the corresponding pair of rollers of the belt transport 1 slightly and thereby prevents the tape before the tape transport. 9 compressed and applied in this state.

Claims (10)

  1. A method for mechanically applying an elastoplastic spacer band onto a glass pane which is determined for assembly with at least one further glass pane for an insulating glass unit, comprising the following steps:
    - unrolling the band in a manner free from tensile stress from a delivery drum with a linear speed corresponding to at least on average the application speed;
    - supplying of the band to the application point in a manner free from tensile stress and shearing stress;
    characterized in that
    - the band is supplied by means of a first driven pair of rollers (11,13) of a compensating section (3) for the delivery to the application point in a manner free from tensile stress and shearing stress and is supplied at its end by means of a second driven pair of rollers (91,92) to the application point;
    - the circumferential speed of the second pair of rollers (91,92) is regulated in a synchronous manner relative to the application speed, and
    - the band length in the compensating section (3) between the first and the second pair of rollers is determined and the circumferential speed of the first pair of rollers (11,13) is regulated depending on the same.
  2. A method according to claim 1, characterized in that the band length in the compensating section (3) is determined by means of at least one sensor (21,22) responding to the position of the band.
  3. A method according to claim 2, characterized in that the circumferential speed of the first pair of rollers (11,12) is increased or decreased depending on the position of the band in the compensating section as determined by means of the at least one sensor (21,22), so that the band remains free of tension in the compensating section (3) at least close to a predetermined specified position.
  4. A method according to one of the claims 1 to 3, characterized in that the band in the compensating section (3) is supported in a manner at least free from sagging.
  5. A method according to one of the claims 1 to 4, characterized in that the band in the compensating section (3) is guided and supported in a bend with a radius depending on the difference of the circumferential speeds of the first and second pair of rollers.
  6. A method according to one of the claims 1 to 5, characterized in that the band is supplied by means of an application head which can be turned about an axis orthogonal relative to the plane of the glass pane and the first pair of rollers (11,13) and all subsequent band conveyance and guiding devices are arranged on the same.
  7. An apparatus for the mechanical application of an elastoplastic spacer band onto a glass pane, for performing the method according to one of the claims 1 to 6, comprising
    - a supporting wall for the glass pane which is inclined slightly against the perpendicular;
    - at least one horizontal conveyor in the region of the lower edge of the supporting wall;
    - a pillar in a plane parallel to the plane of the supporting wall;
    - an application head which is movable on the pillar between the lower edge and the upper edge of the supporting wall and which can be turned in steps about an axis orthogonal relative to the plane of the supporting wall;
    - devices for feeding the band from a delivery drum and for pressing and cutting the band accurate to size;
    - a machine control unit for measuring, controlling and monitoring the movements of the parts of the apparatus and the transport of the band;
    characterized in that
    - the devices for supplying the band comprise at least one first pair of rollers (11,13) with a drive controllable via the machine control unit, a compensating section (3) with supporting rollers (31,32,33) for the band, a second pair of rollers (91,92) with a drive controllable via the machine control unit, wherein the circumferential speed of the second pair of rollers (91,92) is regulated in a synchronous manner relative to the application speed, and at least one sensor (21,22) for recognizing the position of the band in the compensating section (3), whereby the band length in the compensating section (3) between the first and the second pair of rollers is determined and the circumferential speed of the first pair of rollers (11,13) is regulated depending on the same, so that the supply of the band to the application point occurs in a manner free from tensile stress and shearing stress.
  8. An apparatus according to claim 7, characterized in that the delivery drum has an unwinding drive which can be controlled synchronously to the application speed via the machine control unit.
  9. An apparatus according to claim 8 or 9, characterized in that the compensating section (3) between the first and the second pair of rollers (11,13;91,92) comprises at least one slot-like guide means (31,32,33) for the band, with the long axis of the guide slot extending substantially orthogonally to the band conveying direction, and the slot width is only slightly larger than the width of the band.
  10. An apparatus according to one of the claims 8 to 10, characterized in that a swivelable lever (10c) is arranged at the application point, which lever supports the band close to the application point especially during the turning of the application head.
EP03003854A 2002-03-20 2003-02-20 Process and device for mechanically applying a spacer ribbon onto a glass pane Active EP1347142B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10212359 2002-03-20
DE2002112359 DE10212359B4 (en) 2002-03-20 2002-03-20 Method and device for machine application of a spacer strip on a glass pane

Publications (4)

Publication Number Publication Date
EP1347142A2 EP1347142A2 (en) 2003-09-24
EP1347142A3 EP1347142A3 (en) 2004-07-28
EP1347142B1 EP1347142B1 (en) 2006-05-03
EP1347142B2 true EP1347142B2 (en) 2011-10-19

Family

ID=27771449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03003854A Active EP1347142B2 (en) 2002-03-20 2003-02-20 Process and device for mechanically applying a spacer ribbon onto a glass pane

Country Status (6)

Country Link
US (2) US7008492B2 (en)
EP (1) EP1347142B2 (en)
CN (1) CN1239805C (en)
AT (1) AT325252T (en)
DE (2) DE10212359B4 (en)
ES (1) ES2262912T5 (en)

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US20030038528A1 (en) * 2000-08-22 2003-02-27 Youngi Kim Pocket wheel cover for portable golf cart
DE10350312B4 (en) * 2003-10-28 2005-12-01 Peter Lisec Method and device for applying an elastoplastic tape in the manufacture of an insulating glass pane
SI2439372T1 (en) * 2004-02-04 2018-11-30 Edgetech I.G., Inc. A method for forming an insulating glazing unit
DE102004009858B4 (en) * 2004-02-25 2006-05-04 Karl Lenhardt Method for positioning glass sheets in a vertical assembly and pressing device for insulating glass panes
DE102004032023B4 (en) 2004-07-01 2007-06-06 Peter Lisec Method and device for producing an insulating glass pane
KR101437579B1 (en) * 2004-08-20 2014-09-05 헌터더글라스인코포레이티드 Apparatus and method for making a window covering having operable vanes
ITTV20040117A1 (en) 2004-10-20 2005-01-20 For El Base Di Vianello Fortun Automatic machine for the application of the spacer profile on the glass plate and automatic procedure for the application of the spacer profile on the glass plate.
DE102005058028B3 (en) * 2005-12-05 2007-08-02 Peter Lisec Method and device for closing the corner joint of the spacer of an insulating glass pane
US9309714B2 (en) 2007-11-13 2016-04-12 Guardian Ig, Llc Rotating spacer applicator for window assembly
RU2483184C2 (en) 2007-11-13 2013-05-27 ИНФИНИТ ЭДЖ ТЕКНОЛОДЖИС, ЭлЭлСи Spacer part and method of its production
IT1391489B1 (en) * 2008-10-17 2011-12-23 For El S P A Automatic machine for the continuous extrusion of thermoplastic sealant on the spacer profile during the discontinuous application of the same on the glass plate and automatic procedure for the continuous extrusion of thermoplastic sealant on the spacer profile during the discontinuous application of the same on the glass plate.
EP2454437B1 (en) 2009-07-14 2017-05-10 Guardian IG, LLC Stretched strips for spacer and sealed unit
AT11889U1 (en) 2009-10-22 2011-06-15 Inova Lisec Technologiezentrum Device for applying distance holders on glass panes
AT508998B1 (en) 2009-10-22 2011-07-15 Inova Lisec Technologiezentrum Apparatus for applying flexible spacer belts
WO2011156722A1 (en) 2010-06-10 2011-12-15 Infinite Edge Technologies, Llc Window spacer applicator
AT509993B1 (en) 2010-09-23 2012-01-15 Inova Lisec Technologiezentrum Plaster between the end of pre-prepared spacers for insulating glass and method for manufacturing the same
US9228389B2 (en) 2010-12-17 2016-01-05 Guardian Ig, Llc Triple pane window spacer, window assembly and methods for manufacturing same
ITTV20110102A1 (en) 2011-07-19 2013-01-20 For El Spa AUTOMATIC MACHINE FOR THE ALTERNATIVE APPLICATION OF SEVERAL FLEXIBLE SPACER PROFILES ON GLASS SHEET AND AUTOMATIC PROCEDURE FOR THE ALTERNATIVE APPLICATION OF MORE THAN FLEXIBLE SPACER PROFILES ON GLASS SLAB.
US9689196B2 (en) 2012-10-22 2017-06-27 Guardian Ig, Llc Assembly equipment line and method for windows
AT513390B1 (en) * 2012-10-22 2014-04-15 Lisec Austria Gmbh Method and device for automated replacement of spacers
US9260907B2 (en) 2012-10-22 2016-02-16 Guardian Ig, Llc Triple pane window spacer having a sunken intermediate pane
US9656356B2 (en) 2013-01-22 2017-05-23 Guardian Ig, Llc Window unit assembly station and method
US9951553B2 (en) 2014-06-05 2018-04-24 Erdman Automation Corporation High speed parallel process insulated glass manufacturing line
DE102015113865A1 (en) * 2014-09-24 2016-03-24 Bystronic Lenhardt Gmbh Method and apparatus for feeding a film in the manufacture of laminated safety glass
DE102014115218B3 (en) * 2014-10-20 2016-04-14 Bystronic Lenhardt Gmbh Method for forming a closed frame-shaped spacer for an insulating glass pane
US10253552B2 (en) 2016-04-21 2019-04-09 Erdman Automation Corporation High speed parallel process insulated glass manufacturing line
CN106864155B (en) * 2017-04-24 2019-07-05 无锡兢腾建筑装饰工程有限公司 A kind of device pasted for wallpaper

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EP0152807B1 (en) 1984-02-06 1987-09-09 Karl Lenhardt Apparatus for applying an adhesive strand of plastic material onto a glass pane
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US5888341A (en) 1994-05-26 1999-03-30 Lafond; Luc Apparatus for the automated application of spacer material

Also Published As

Publication number Publication date
EP1347142A3 (en) 2004-07-28
DE50303153D1 (en) 2006-06-08
US7008492B2 (en) 2006-03-07
CN1239805C (en) 2006-02-01
ES2262912T5 (en) 2012-03-07
DE10212359A1 (en) 2003-10-09
US7523776B2 (en) 2009-04-28
CN1445429A (en) 2003-10-01
US20060076110A1 (en) 2006-04-13
EP1347142A2 (en) 2003-09-24
US20030178127A1 (en) 2003-09-25
ES2262912T3 (en) 2006-12-01
AT325252T (en) 2006-06-15
DE10212359B4 (en) 2005-10-06
EP1347142B1 (en) 2006-05-03

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