EP3099880A1 - Method and device for producing thermoplastic spacers - Google Patents

Method and device for producing thermoplastic spacers

Info

Publication number
EP3099880A1
EP3099880A1 EP15705476.8A EP15705476A EP3099880A1 EP 3099880 A1 EP3099880 A1 EP 3099880A1 EP 15705476 A EP15705476 A EP 15705476A EP 3099880 A1 EP3099880 A1 EP 3099880A1
Authority
EP
European Patent Office
Prior art keywords
strand
jaws
spacer
beginning
glass
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
EP15705476.8A
Other languages
German (de)
French (fr)
Other versions
EP3099880B1 (en
Inventor
Leopold Mader
Leopold Karner
Manuel SCHÖRGHUBER
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.)
Lisec Austria GmbH
Original Assignee
Lisec Austria GmbH
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 Lisec Austria GmbH filed Critical Lisec Austria GmbH
Publication of EP3099880A1 publication Critical patent/EP3099880A1/en
Application granted granted Critical
Publication of EP3099880B1 publication Critical patent/EP3099880B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67326—Assembling spacer elements with the panes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66328—Section members positioned at the edges of the glazing unit of rubber, plastics or similar materials
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • E06B3/66347—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes with integral grooves or rabbets for holding the panes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67326—Assembling spacer elements with the panes
    • E06B3/67334—Assembling spacer elements with the panes by soldering; Preparing the panes therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67339—Working the edges of already assembled units
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67391—Apparatus travelling around the periphery of the pane or the unit
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
    • E06B3/6775—Evacuating or filling the gap during assembly

Definitions

  • thermoplastic spacers are thermoplastic spacers
  • the invention relates to a method for producing
  • thermoplastic material for example, proceeded so that a strand of thermoplastic material, the
  • Spacer to form, applied to a glass pane is, wherein the strand from the edge of the glass sheet has a distance ("onset"), that is offset from the edge of the glass pane is applied inwardly offset.
  • onset a distance
  • the beginning and end of the strand are joined together by crimping the overlapping ends of the strand.
  • Insulating glass blank pressed to nominal size to the intended outer thickness (distance of the outer surfaces of the glass panes of
  • Insulating glass blanks from each other.
  • the distance between the glass panes is reduced from each other, so that can build up pressure in the interior of the insulating glass blank, which is undesirable.
  • EP 0 805 254 B1 proposes to apply the strand of thermoplastic material in sections with reduced width, so that after assembly and before the compression of the insulating glass blank, an opening remains free, through the gas or air from the Interior of the insulating glass Blanks can escape when this is pressed.
  • EP 0 805 254 B1 is disadvantageous insofar as it is a comparatively complicated procedure to form the spacer in sections with reduced width. Moreover, the known method often results in leaky joints, because the pressing there is less effective.
  • the insulating glass sheets are assembled by first applying the strand-shaped spacer to a first glass sheet along its edges, then sealing the remaining gap between the ends of the spacer.
  • At least one of the two sheets of glass is elastically bent along a portion of its circumference and connected to the other sheet of glass with the spacer in such a way that a gap remains open between the spacer and the second glass sheet in the region of the bend. Then the glass panels are pressed together and the bending of the other glass panel is reversed.
  • DE 42 31 424 A also discloses a tool for closing the gap between the ends of the spacer.
  • This tool comprises a first pressing part, which is applied to the horizontal portion of the spacer, a second pressing part, to the vertical portion of the
  • Abutment is said to be the gap in the spacer while maintaining the right angle between the two coincident sections of the spacer easily and reliably
  • DE 42 31 424 A also mentions a
  • a pressure equalization can take place in the region of the bent-away part of the second glass sheet.
  • Insulating glass with a thermoplastic spacer measures to be taken, which allow a pressure equalization, so that inside the pressed insulating glass pressure is avoided.
  • a shallow recess is provided at at least one point of the thermoplastic spacer, which is sprayed onto one of the glass panes.
  • the shallow depression is made by partially deforming the
  • the invention has for its object to provide a method and an apparatus for carrying out the method, with which at least one Druckaus GmbHsöff between
  • Spacer and glass can be formed in a simple and reliable way.
  • the object underlying the invention is achieved with a device having the features of independent, directed to the device claim.
  • An advantage of the method according to the invention is that the portion of the spacer is formed with reduced width, when the beginning and end of the applied spacer be connected to each other, so the spacer is closed. It is advantageous that when making the
  • Plunger which creates the recess in the spacer, engage the spacer at the same point.
  • the jaws prevent the spacer from deforming, for example increasing in width in the direction of the plane of the glass pane.
  • thermoplastic material is aligned vertically (tilted by a few degrees backwards), a strand of thermoplastic material is applied.
  • the beginning and end of the strand come from a distance from a corner of the glass to lie and overlap each other.
  • the beginning and end of the strand forming the spacer are crimped by jaws applied from both sides to the beginning and end of the strand.
  • Strands are applied is advanced by deforming the strand in this one recess, so an area in which the spacer has a reduced width generated.
  • a stamp which has a convexly curved, front, engaging the strand end face, so that an approximately trough-shaped depression is formed in the strand.
  • the recess is located in the free side surface of the strand, ie in the side surface of the strand, which is applied by the glass sheet on which the strand,
  • the depressions are preferably curved in side view.
  • the curvature is in particular at least approximately circular arc-shaped.
  • Recesses of rectangular or trapezoidal cross-section are also contemplated, but can be problematic because of air pockets in the area of the corners during crimping
  • the strand In the area of the (trough-like) depression, the strand has a width measured transversely to the plane of the glass pane which is smaller than the width of the strand in its region lying outside the depression.
  • the spacer may be provided to heat the material of the strand forming the spacer.
  • arranged recess may be provided so that space is formed, can pass into the excess material, when the beginning and end closed by means of the jaws and with the help of the punch, the recess is formed.
  • at least one recess is preferably provided only in the jaw, which is applied to the outside of the strand.
  • the recess is designed as a region-wise reduction in the width of the strand forming the spacer.
  • the recess is made with concave outer surface.
  • the jaws are equipped with a heater.
  • FIG. 1 in view of a glass pane with appliziertem
  • Fig. 2 shows a device with which the inventive
  • Fig. 3 shows schematically the basic structure of a
  • Fig. 5 shows schematically an arrangement for heating of beginning and End of a spacer
  • Fig. 6 in side view an embodiment of a
  • Fig. 7 shows the embodiment of Fig. 6 in an oblique view and without the on-line from the inside to be applied jaw and
  • Fig. 8 possible forms of depression in the spacer.
  • Fig. 1 shows a glass sheet 1, on which a spacer in the form of a strand 2 of thermoplastic material has been applied at a distance from the edge 3 of the glass sheet 1.
  • Fig. 1 also shows that the beginning 4 and end 5 of the strand 2, which forms the spacer overlap each other, wherein the end 5 of the strand 2, based on the glass sheet 1, preferably disposed within the beginning 4 of the strand. It is the
  • Fig. 2 shows a device 10, in the beginning 4 and end 5 of the spacer forming strand 2 for closing the
  • Spacer can be connected together.
  • Device 10 comprises a support wall 11, for. B. a roller or air cushion support wall, at the bottom of a
  • Conveyor 12 is provided in the form of a roller conveyor or a conveyor belt.
  • the conveyor 12 is driven by means of a servomotor.
  • the glass sheet 1 with applied, forming the spacer strand 2 is in the position of a device 13 for warming up the beginning 4 and end 5 of the strand 2, then in the position of a unit 14, with which beginning 4 and end 5 of the applied, the
  • the device 13 for heating and the unit 14 are arranged in their operative position at a roller conveyor between adjacent rollers.
  • a roller conveyor between adjacent rollers.
  • the beginning 4 and end 5 of the spacer forming strand 2 must be warmed only after breaks in operation in order to make a secure and tight connection possible.
  • the unit 14 for connecting the beginning of 4 and the end 5 of the spacer forming strand 2 comprises two jaws, namely an inner jaw 20 and an outer jaw 21, which from both sides into contact with the beginning 4 and the End 5 of the applied strand 2 are applied to press them. Between the jaws, ie between the inner jaw 20 and the outer jaw 21, a punch 22 is provided, which is used to produce a region of reduced width of the
  • Spacer forming strand 2 between the jaws 20, 21 can be advanced.
  • Fig. 4 shows again the jaws 20, 21, the beginning 4 and end 5 of the applied strand 2 are assigned.
  • Fig. 4 also shows that the jaws 20, 21 heaters 23, z. B. in the form of
  • integrated heating elements may be assigned to the
  • Fig. 4 also shows that at least one jaw, in the example shown this is the outer jaw 21, a trough-shaped
  • Material of the strand 2 can occur when the beginning 4 and end 5 of the applied strand 2 is pressed to connect and the punch 22 is advanced to produce the recess, so the area with reduced width of the spacer.
  • Fig. 5 shows schematically an example of a unit 13 for
  • Material of the strand 2 can be heated to the correct temperature for closing.
  • the jaws namely the inner jaw 20 and the outer jaw 21, are pivotably mounted in the machine setting 40 about axes 30 and 31 .
  • the jaws can be applied by means of pressure cylinders 32, 33 (pneumatic cylinders) to the inside and the outside of the beginning 4 and end 5 of the applied strand 2.
  • Fig. 7 shows that the outer jaw 21, so the jaw, which is applied to the outside of the strand 2 in the region of the beginning 4 and end 5, in their strand 2 side facing several exemptions in the form of groove or groove-shaped recesses 23, may enter into the excess material of the strand 2 when the beginning of 4 and 5 end pressed and with the help of the punch 22 of the recessed area, that is, the portion of the strand 2 is produced with reduced width.
  • the punch 22 is attached to a carriage 34, which by means of a pressure medium cylinder 35 (pneumatic cylinder) before and can be pushed back.
  • the carriage 34 of the punch 22 is on the carrier 35 of the outer jaw 21, with the aid of a pressure medium cylinder 35 (pneumatic cylinder)
  • Pressure fluid motor 33 is pivotable about the axis 31, guided.
  • FIG. 7 shows that the front end face of the punch 22 is convexly curved so that a trough-shaped depression forming the reduced width portion of the spacer forming strand 2 is generated when the punch 22 is between the jaws 20, 21 attached to the inside and the
  • FIG. 8 shows possible shapes of the depressions provided in the strand 2 forming the spacer, in a side view (ie viewed in the direction of the plane of the glass pane 1).
  • the trough-shaped so limited by a (circular) arc shape of the recess, which is shown in Fig. 8 right, is preferred over a recess with a rectangular or trapezoidal cross-section.
  • the assembly 14 forming the assembly with the jaws 20, 21 and between these vorschiebaren punch 22 and with their
  • the unit forming the unit 14 (“closing unit") is further in a direction parallel to the glass pane 1
  • Stamp 22 to the strand 2 - this can be compared to the edge of the glass pane 1 more or less far inward offset be arranged - adapt.
  • thermoplastic material In the manufacture of insulating glass, comprising at least two glass sheets 1 and at least one spacer arranged therebetween of thermoplastic material is the
  • thermoplastic material by means of applied to the side surfaces of the strand 2 jaws 20, 21 pressed. In the area of the so closed joint between beginning 4 and end 5 of the
  • Strand 2 becomes the width of the strand 2, forming a depression by means of a plunger 22 with convex

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

When producing insulating glass comprising at least two panes of glass (1) and at least one spacer of thermoplastic material arranged between said panes of glass, to seal the beginning (4) and the end (5) of the strand (2) of thermoplastic material the thermoplastic material is compressed with the aid of jaws (20, 21) placed against the side faces of the strand (2). In the region of the joint thus formed between the beginning (4) and the end (5) of the strand (2) forming the spacer, the width of the strand (2) is reduced with the aid of a compression die (22) with a convexly curved active face such that a depression is created. This depression has the effect that, after the assembly of an insulating glass blank, placing a second pane of glass onto the free edges of the strand (2) produces an opening that allows a pressure equalization during the subsequent compression of the insulating glass blank.

Description

Verfahren und Vorrichtung zum Herstellen von  Method and device for producing
thermoplastischen Abstandhaltern  thermoplastic spacers
Die Erfindung betrifft ein Verfahren zum Herstellen von The invention relates to a method for producing
Abstandhaltern aus thermoplastischem Material im Zuge des Spacers made of thermoplastic material in the course of
Herstellens von Isolierglas und eine Vorrichtung, mit welcher das erfindungsgemäße Verfahren ausgeführt werden kann. Manufacture of insulating glass and a device with which the inventive method can be performed.
Beim Herstellen von Isolierglas mit Abstandhaltern aus When making insulating glass with spacers made
thermoplastischem Material wird beispielsweise so vorgegangen, dass ein Strang aus thermoplastischem Material, der den thermoplastic material, for example, proceeded so that a strand of thermoplastic material, the
Abstandhalter bilden soll, auf eine Glasscheibe aufgebracht ("appliziert") wird, wobei der Strang vom Rand der Glasscheibe einen Abstand ("Einstand") aufweist, also gegenüber dem Rand der Glasscheibe nach innen versetzt aufgebracht wird. Nachdem der Strang, der den Abstandhalter bildet, aufgebracht worden ist, werden Anfang und Ende des Stranges miteinander verbunden, indem die einander überlappenden Enden des Stranges verpresst werden. Spacer to form, applied to a glass pane ("applied") is, wherein the strand from the edge of the glass sheet has a distance ("onset"), that is offset from the edge of the glass pane is applied inwardly offset. After the strand forming the spacer has been applied, the beginning and end of the strand are joined together by crimping the overlapping ends of the strand.
Nachdem der Abstandhalter aus thermoplastischem Material so geschlossen worden ist, wird eine zweite Glasscheibe aufgesetzt (der Isolierglas-Rohling wird zusammengebaut) und der After the spacer made of thermoplastic material has been closed so, a second glass sheet is placed (the insulating glass blank is assembled) and the
Isolierglas-Rohling auf Sollmaß verpresst, um die vorgesehene Außendicke (Abstand der Außenflächen der Glasscheiben des Insulating glass blank pressed to nominal size to the intended outer thickness (distance of the outer surfaces of the glass panes of
Isolierglas-Rohlings) voneinander zu erreichen. Insulating glass blanks) from each other.
Beim Verpressen des Isolierlgas-Rohlings wird der Abstand der Glasscheiben voneinander verringert, so dass sich im Inneren des Isolierglas-Rohlings Überdruck aufbauen kann, was unerwünscht ist . When pressing the Isolierlgas blank, the distance between the glass panes is reduced from each other, so that can build up pressure in the interior of the insulating glass blank, which is undesirable.
Um das zu vermeiden, schlägt die EP 0 805 254 Bl vor, den Strang aus thermoplastischem Material abschnittsweise mit verringerter Breite aufzutragen, so dass nach dem Zusammenbau und vor dem Verpressen des Isolierglas-Rohlings eine Öffnung frei bleibt, durch die Gas oder Luft aus dem Innenraum des Isolierglas- Rohlings entweichen kann, wenn dieser verpresst wird. To avoid this, EP 0 805 254 B1 proposes to apply the strand of thermoplastic material in sections with reduced width, so that after assembly and before the compression of the insulating glass blank, an opening remains free, through the gas or air from the Interior of the insulating glass Blanks can escape when this is pressed.
In der EP 0 805 254 Bl wird auch vorgeschlagen, den Abschnitt des Stranges aus thermoplastischem Material mit verminderter Breite dadurch zu bilden, dass die Menge an thermoplastischem Material, die extrudiert wird, in diesem Bereich verringert wird . It is also proposed in EP 0 805 254 B1 to form the portion of the strand of thermoplastic material of reduced width by reducing the amount of thermoplastic material which is extruded in that region.
Das aus der EP 0 805 254 Bl bekannte Verfahren ist insofern nachteilig, als es eine vergleichsweise aufwändige Vorgangsweise ist, den Abstandhalter abschnittsweise mit verringerter Breite auszubilden. Überdies ergibt das bekannte Verfahren oft undichte Stoßstellen, da das Verpressen dort wenig wirksam ist. The method known from EP 0 805 254 B1 is disadvantageous insofar as it is a comparatively complicated procedure to form the spacer in sections with reduced width. Moreover, the known method often results in leaky joints, because the pressing there is less effective.
Die DE 42 31 424 A (= WO 94/06992A) offenbart ein Verfahren zum Herstellen von Isolierglasscheiben, deren Glastafeln durch einen plastischen Abstandhalter auf Abstand gehalten und miteinander verklebt sind. Die Isolierglasscheiben werden zusammengebaut, indem zunächst der strangförmige Abstandhalter auf eine erste Glastafel längs ihrer Ränder aufgebracht, dann die verbliebene Lücke zwischen den Enden des Abstandhalters abgedichtet wird. Wenigstens eine der beiden Glastafeln wird längs eines Teils ihrer Umfangs elastisch gebogen und mit der anderen Glastafel mit dem Abstandhalter in der Weise verbunden, dass zwischen dem Abstandhalter und der zweiten Glastafel im Bereich der Biegung ein Spalt offen bleibt. Dann werden die Glastafeln miteinander verpresst und die Biegung der anderen Glastafel wird rückgängig gemacht. Die DE 42 31 424 A offenbart auch ein Werkzeug zum Schließen der Lücke zwischen den Enden des Abstandhalters. DE 42 31 424 A (= WO 94 / 06992A) discloses a method for producing insulating glass panes whose glass sheets are held at a distance by a plastic spacer and glued together. The insulating glass sheets are assembled by first applying the strand-shaped spacer to a first glass sheet along its edges, then sealing the remaining gap between the ends of the spacer. At least one of the two sheets of glass is elastically bent along a portion of its circumference and connected to the other sheet of glass with the spacer in such a way that a gap remains open between the spacer and the second glass sheet in the region of the bend. Then the glass panels are pressed together and the bending of the other glass panel is reversed. DE 42 31 424 A also discloses a tool for closing the gap between the ends of the spacer.
Dieses Werkzeug umfasst einen ersten Andrückteil, der an dem waagrechten Abschnitt des Abstandhalters angelegt wird, einen zweiten Andrückteil, der an den vertikalen Abschnitt des This tool comprises a first pressing part, which is applied to the horizontal portion of the spacer, a second pressing part, to the vertical portion of the
Abstandhalters angelegt wird, sowie ein keilförmiges Widerlager, das den Andrückteilen entgegengerichtet von innen an die Enden des Abstandhalters angelegt wird, so dass die Enden des Spacer is applied, and a wedge-shaped abutment, which is applied to the pressing parts in the opposite direction from the inside to the ends of the spacer, so that the ends of the
Abstandhalters zwischen den Andrückteilen einerseits und dem Widerlager andererseits eingeklemmt werden. Spacer between the pressing parts on the one hand and the Abutment on the other hand be clamped.
Durch den gemeinsamen Druck der Andrückteile sowie des Due to the common pressure of the pressing parts and the
Widerlagers soll die Lücke im Abstandhalter unter Beibehaltung des rechten Winkels zwischen den beiden dort zusammentreffenden Abschnitten des Abstandhalters leicht und zuverlässig Abutment is said to be the gap in the spacer while maintaining the right angle between the two coincident sections of the spacer easily and reliably
geschlossen werden. Die DE 42 31 424 A erwähnt auch einen getting closed. DE 42 31 424 A also mentions a
Niederhalter, der senkrecht zur Glastafel auf die noch freie Seite des Abstandhalters angelegt werden kann. Mit diesem Downholder, which can be applied perpendicular to the glass sheet on the still free side of the spacer. With this
Niederhalter wird im Abstandhalter aber keine Vertiefung Downholder is in the spacer but no recess
ausgebildet. Dies ist auch nicht erforderlich, da beim educated. This is not necessary, since at
Verpressen der Isolierglasscheibe ein Druckausgleich im Bereich des weggebogenen Teils der zweiten Glastafel erfolgen kann. Pressing the insulating glass pane, a pressure equalization can take place in the region of the bent-away part of the second glass sheet.
Aus der EP 1 002 925 A ist es bekannt, beim Verpressen von From EP 1 002 925 A it is known when pressing
Isolierglas mit einem thermoplastischen Abstandhalter Maßnahmen zu treffen, die einen Druckausgleich erlauben, damit im Inneren des gepressten Isolierglases Überdruck vermieden wird. Hierzu wird gemäß der EP 1 002 925 A an wenigstens einer Stelle des thermoplastischen Abstandhalters, der auf eine der Glasscheiben aufgespritzt ist, eine flache Vertiefung vorgesehen. Die flache Vertiefung wird durch bereichsweises Verformen des Insulating glass with a thermoplastic spacer measures to be taken, which allow a pressure equalization, so that inside the pressed insulating glass pressure is avoided. For this purpose, according to EP 1 002 925 A, a shallow recess is provided at at least one point of the thermoplastic spacer, which is sprayed onto one of the glass panes. The shallow depression is made by partially deforming the
Abstandhalters in Richtung auf die Glasscheibe, auf die der Abstandhalter aufgespritzt worden ist, hin erzeugt. Dabei wird der Abstandhalter im Bereich der Vertiefung soweit verformt, wie der Abstandhalter beim Verpressen des Paketes aus Glasscheiben und Abstandhalter zu einer Isolierglasscheibe verformt wird. Die freie, der zweiten Glasscheibe zugekehrte Fläche im Bereich der Vertiefung hat von der Glasscheibe, auf die der Abstandhalter aufgespritzt ist, bevorzugt einen Abstand, der dem Abstand der beiden Glasscheiben im fertig gepressten Isolierglas entspricht. Von Vorteil ist dabei, dass im Ergebnis - anders als bei Kerben im Abstandhalter - eine Isolierglasscheibe erhalten wird, deren Abstandhalter über seine ganze Länge die gleichen Eigenschaften und Abmessungen hat. Es ist schon vorgeschlagen worden (EP 805 254 A) , in dem auf die eine Glasscheibe aufgespritzten, thermoplastischen Abstandhalter in seiner der zweiten Glasscheibe zugekehrten Seite wenigstens eine Kerbe vorzusehen, mit dem Ziel, beim Pressen des Spacer in the direction of the glass pane, on which the spacer has been sprayed out towards generated. In this case, the spacer is deformed in the region of the depression as far as the spacer is deformed during compression of the package of glass panes and spacers to an insulating glass pane. The free, the second glass pane facing surface in the region of the recess of the glass sheet, on which the spacer is sprayed, preferably a distance corresponding to the distance of the two glass panes in the finished pressed insulating glass. The advantage here is that the result - unlike notches in the spacer - an insulating glass pane is obtained, the spacer over its entire length has the same properties and dimensions. It has already been proposed (EP 805 254 A), in which provided on the glass pane sprayed, a thermoplastic spacer in its second glass pane side facing at least one notch, with the aim of pressing the
Isolierglases einen Druckausgleich zu erlauben. Solche Kerben in der einen Seite des Abstandhalters ergeben aber eine Insulating glass to allow pressure equalization. But such notches in one side of the spacer but one
Druckausgleichsöffnung mit einer nur geringen Pressure equalization opening with only a small
Querschnittsfläche, so dass der Druckausgleich bei den Cross-sectional area, so that the pressure balance in the
angestrebten, kurzen Taktzeiten unvollständig ist und im aimed at, short cycle times is incomplete and im
gepressten Isolierglas Überdruck bestehen bleibt. Nachteilig bei dem aus der EP 805 254 A bekannten Verfahren ist es, dass im Bereich der Vertiefungen, die durch Verringern der Breite des Abstandhalters schon beim Aufspritzen desselben auf die Pressed insulating glass pressure remains. A disadvantage of the method known from EP 805 254 A is that in the region of the recesses, which by reducing the width of the spacer already during the injection of the same on the
Glasscheibe erzeugt werden sollen, schlussendlich "Material", nämlich thermoplastischer Kunststoff, fehlt. Glass pane to be produced, ultimately "material", namely thermoplastic, is missing.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zum Ausführen des Verfahrens vorzuschlagen, mit denen wenigstens eine Druckausgleichsöff ung zwischen The invention has for its object to provide a method and an apparatus for carrying out the method, with which at least one Druckausgleichsöff between
Abstandhalter und Glasscheibe auf einfache und zuverlässige Art gebildet werden kann. Spacer and glass can be formed in a simple and reliable way.
Gelöst wird diese Aufgabe erfindungsgemäß mit einem Verfahren, das die Merkmale des unabhängigen, auf das Verfahren gerichteten Anspruches aufweist. This object is achieved according to the invention with a method having the features of the independent, directed to the method claim.
Insoweit die Vorrichtung betroffen ist, wird die der Erfindung zugrunde liegende Aufgabe mit einer Vorrichtung gelöst, welche die Merkmale des unabhängigen, auf die Vorrichtung gerichteten Anspruchs aufweist. As far as the device is concerned, the object underlying the invention is achieved with a device having the features of independent, directed to the device claim.
Weitere Erfindungsmerkmale sind Gegenstände der Unteransprüche. Further features of the invention are subject matter of the subclaims.
Von Vorteil bei dem erfindungsgemäßen Verfahren ist es, dass der Abschnitt des Abstandhalters mit verringerter Breite gebildet wird, wenn Anfang und Ende des applizierten Abstandhalters miteinander verbunden werden, also der Abstandhalter geschlossen wird. Dabei ist es von Vorteil, dass beim Herstellen der An advantage of the method according to the invention is that the portion of the spacer is formed with reduced width, when the beginning and end of the applied spacer be connected to each other, so the spacer is closed. It is advantageous that when making the
Vertiefungen der Abstandhalter seitlich gestützt ist, wenn seine Enden miteinander verbunden werden. Unerwünschte Verformungen des Abstandhalters sind so vermieden. Dieser vorteilhafte Effekt tritt ein, da die Backen, mit welchen die Enden des Recesses of the spacers is laterally supported when its ends are joined together. Unwanted deformations of the spacer are avoided. This advantageous effect occurs because the jaws with which the ends of the
Abstandhalters miteinander verbunden werden, und der Spacers are joined together, and the
Druckstempel, mit dem die Vertiefung im Abstandhalter erzeugt wird, am Abstandhalter an der gleichen Stelle eingreifen. Die Backen verhindern, dass sich der Abstandhalter verformt, beispielsweise in Richtung der Ebene der Glasscheibe an Breite zunimmt . Plunger, which creates the recess in the spacer, engage the spacer at the same point. The jaws prevent the spacer from deforming, for example increasing in width in the direction of the plane of the glass pane.
In der Praxis kann beim Ausführen des erfindungsgemäßen In practice, when carrying out the invention
Verfahrens zum Herstellen eines Abstandhalters aus einem auf eine Glasscheibe applizierten Strang aus thermoplastischem Method for producing a spacer from a strand of thermoplastic applied to a pane of glass
Material, der den Abstandhalter bildet, beispielsweise wie folgt vorgegangen werden: Material that forms the spacer, for example, proceed as follows:
Auf eine Glasscheibe, die beispielsweise im Wesentlichen On a glass pane, for example, essentially
lotrecht (um wenige Grad nach hinten geneigt) ausgerichtet ist, wird ein Strang aus thermoplastischem Material appliziert. is aligned vertically (tilted by a few degrees backwards), a strand of thermoplastic material is applied.
Anfang und Ende des Stranges kommen mit Abstand von einer Ecke der Glasscheibe zu liegen und überlappen einander. Beim The beginning and end of the strand come from a distance from a corner of the glass to lie and overlap each other. At the
Aufbringen des Stranges, der den Abstandhalter bildet, wird dieser mit Abstand vom Rand der Glasscheibe aufgetragen, so dass sich im Isolierglas-Rohling eine nach außen offene Randfuge bildet, die dann mit Versiegelungsmasse gefüllt (versiegelt) wird . Application of the strand that forms the spacer, this is applied at a distance from the edge of the glass, so that forms an outwardly open edge joint in the insulating glass blank, which is then filled with sealant (sealed).
Um den Abstandhalter zu schließen, werden Anfang und Ende des Stranges, der den Abstandhalter bildet, durch von beiden Seiten an Anfang und Ende des Stranges angelegte Backen verpresst. To close the spacer, the beginning and end of the strand forming the spacer are crimped by jaws applied from both sides to the beginning and end of the strand.
Gleichzeitig mit dem Verpressen oder mit zeitlichem Versatz danach wird mit Hilfe eines Stempels, der quer zur Ebene der Glasscheibe zwischen die Backen, die an Anfang und Ende des g Simultaneously with the pressing or with temporal misalignment thereafter, with the help of a stamp, which transversely to the level of the glass pane between the jaws, at the beginning and the end of the G
Stranges angelegt sind, vorgeschoben wird, durch Verformen des Stranges in diesem eine Vertiefung, also ein Bereich, in dem der Abstandhalter eine verringerte Breite hat, erzeugt. Strands are applied, is advanced by deforming the strand in this one recess, so an area in which the spacer has a reduced width generated.
Bevorzugt wird dabei ein Stempel verwendet, der eine konvex gekrümmte, vordere, am Strang angreifende Stirnfläche hat, so dass im Strang eine etwa muldenförmige Vertiefung gebildet wird. Die Vertiefung befindet sich in der freien Seitenfläche des Stranges, also in der Seitenfläche des Stranges, die von der Glasscheibe, auf die der Strang aufgebracht worden ist, Preference is given to a stamp is used, which has a convexly curved, front, engaging the strand end face, so that an approximately trough-shaped depression is formed in the strand. The recess is located in the free side surface of the strand, ie in the side surface of the strand, which is applied by the glass sheet on which the strand,
abgekehrt ist. has turned away.
Die Vertiefungen sind in Seitenansicht bevorzugt gekrümmt. Die Krümmung ist insbesondere wenigstens annähernd kreisbogenförmig. Vertiefungen mit rechteckigem oder trapezförmigem Querschnitt sind auch in Betracht gezogen, können aber problematisch sein, da im Bereich der Ecken beim Verpressen Lufteinschlüsse The depressions are preferably curved in side view. The curvature is in particular at least approximately circular arc-shaped. Recesses of rectangular or trapezoidal cross-section are also contemplated, but can be problematic because of air pockets in the area of the corners during crimping
entstehen können. can arise.
In dem Bereich der (muldenartigen) Vertiefung hat der Strang eine quer zur ebene der Glasscheibe gemessene Breite, die kleiner ist als die Breite des Stranges in seinem außerhalb der Mulde liegenden Bereich. In the area of the (trough-like) depression, the strand has a width measured transversely to the plane of the glass pane which is smaller than the width of the strand in its region lying outside the depression.
Um das Verschließen und Einpressen der Vertiefung für das To close and press the recess for the
Herstellen des Bereiches des Abstandhalters mit verringerter Breite zu erleichtern, kann vorgesehen sein, den Werkstoff des den Abstandhalter bildenden Stranges zu erwärmen. To make the area of the spacer with reduced width easier, it may be provided to heat the material of the strand forming the spacer.
Mit der erfindungsgemäßen Vorrichtung können einen With the device according to the invention can a
Druckausgleich beim Verpressen von Isolierglas-Rohlingen Pressure equalization when pressing insulating glass blanks
erlaubende Vertiefungen in Abstandhaltern auch mit Abstand von einer Stoßstelle, also in nicht unterbrochenen und geschlossenen Bereichen des den Abstandhalter bildenden Stranges hergestellt werde . Im Rahmen der Erfindung kann wenigstens eine der Backen mit wenigstens einer, in ihrer am Strang anzulegenden Fläche permitting depressions in spacers also at a distance from a joint, that is made in non-interrupted and closed areas of the spacer forming strand. In the context of the invention, at least one of the jaws with at least one, in their strand to be applied surface
angeordneten Ausnehmung versehen sein, so dass Raum gebildet ist, in den überschüssiges Material übertreten kann, wenn Anfang und Ende mit Hilfe der Backen verschlossen und mit Hilfe des Stempels die Vertiefung eingeformt wird. Diese, wenigstens eine Ausnehmung ist bevorzugt nur in der Backe vorgesehen, die an die Außenseite des Stranges angelegt wird. arranged recess may be provided so that space is formed, can pass into the excess material, when the beginning and end closed by means of the jaws and with the help of the punch, the recess is formed. This, at least one recess is preferably provided only in the jaw, which is applied to the outside of the strand.
In einer möglichen Ausführungsform der Erfindung ist vorgesehen, dass die Vertiefung als bereichsweise Verringerung der Breite des den Abstandhalter bildenden Stranges ausgeführt wird. In one possible embodiment of the invention, it is provided that the recess is designed as a region-wise reduction in the width of the strand forming the spacer.
In einer möglichen Ausführungsform der Erfindung ist vorgesehen, dass die Vertiefung mit konkaver Außenfläche ausgeführt wird. In a possible embodiment of the invention it is provided that the recess is made with concave outer surface.
In einer möglichen Ausführungsform der Erfindung ist vorgesehen, dass die Backen mit einer Heizung ausgestattet sind. In a possible embodiment of the invention it is provided that the jaws are equipped with a heater.
Weitere Einzelheiten, Merkmale und Vorteile des Further details, features and benefits of
erfindungsgemäßen Verfahrens einerseits und der inventive method on the one hand and the
erfindungsgemäßen Vorrichtung andererseits ergeben sich aus der nachstehenden Beschreibung bevorzugter Ausführungsbeispiele anhand der teilweise schematischen Zeichnungen. Es zeigt: On the other hand device according to the invention will become apparent from the following description of preferred embodiments with reference to the partially schematic drawings. It shows:
Fig. 1 in Ansicht eine Glasscheibe mit appliziertem Fig. 1 in view of a glass pane with appliziertem
Abstandhalter, dessen Anfang und Ende noch nicht verschlossen ist,  Spacers whose beginning and end are not yet closed,
Fig. 2 eine Vorrichtung, mit welcher das erfindungsgemäße  Fig. 2 shows a device with which the inventive
Verfahren ausgeführt werden kann,  Procedure can be carried out
Fig. 3 schematisch den grundsätzlichen Aufbau einer  Fig. 3 shows schematically the basic structure of a
erfindungsgemäßen Vorrichtung,  device according to the invention,
Fig . 4 unter Weglassen von Teilen die Backen, wie zum  Fig. 4, omitting parts of the jaws, such as
Verschließen von Anfang und Ende des Abstandhalters vorgesehen sind,  Closing of the beginning and end of the spacer are provided
Fig. 5 schematisch eine Anordnung zum Anwärmen von Anfang und Ende eines Abstandhalters, Fig. 5 shows schematically an arrangement for heating of beginning and End of a spacer,
Fig. 6 in Seitenansicht ein Ausführungsbeispiel einer  Fig. 6 in side view an embodiment of a
erfindungsgemäßen Vorrichtung,  device according to the invention,
Fig. 7 das Ausführungsbeispiel von Fig. 6 in Schrägansicht und ohne die am Strang von innen her anzulegende Backe und  Fig. 7 shows the embodiment of Fig. 6 in an oblique view and without the on-line from the inside to be applied jaw and
Fig. 8 mögliche Formen der Vertiefung im Abstandhalter.  Fig. 8 possible forms of depression in the spacer.
Fig. 1 zeigt eine Glasscheibe 1, auf der ein Abstandhalter in Form eines Stranges 2 aus thermoplastischem Material mit Abstand vom Rand 3 der Glasscheibe 1 aufgetragen worden ist. Fig. 1 zeigt auch, dass Anfang 4 und Ende 5 des Stranges 2, der den Abstandhalter bildet, einander überlappen, wobei das Ende 5 des Stranges 2, bezogen auf die Glasscheibe 1, bevorzugt innerhalb des Anfanges 4 des Stranges angeordnet ist. Dabei wird der Fig. 1 shows a glass sheet 1, on which a spacer in the form of a strand 2 of thermoplastic material has been applied at a distance from the edge 3 of the glass sheet 1. Fig. 1 also shows that the beginning 4 and end 5 of the strand 2, which forms the spacer overlap each other, wherein the end 5 of the strand 2, based on the glass sheet 1, preferably disposed within the beginning 4 of the strand. It is the
Anfang 4 des Stranges 2 so auf die Glasscheibe appliziert, dass er wenigstens annähernd in der Fluchtlinie des weiteren Beginning 4 of the strand 2 applied to the glass so that it is at least approximately in the alignment of the other
Abstandhalters liegt. Spacer is located.
Fig. 2 zeigt eine Vorrichtung 10, in der Anfang 4 und Ende 5 des den Abstandhalter bildenden Stranges 2 zum Schließen des Fig. 2 shows a device 10, in the beginning 4 and end 5 of the spacer forming strand 2 for closing the
Abstandhalters miteinander verbunden werden können. Die Spacer can be connected together. The
Vorrichtung 10 umfasst eine Stützwand 11, z. B. eine Rollenoder Luftkissenstützwand, an deren unteren Rand eine Device 10 comprises a support wall 11, for. B. a roller or air cushion support wall, at the bottom of a
Fördereinrichtung 12 in Form eines Rollenförderers oder eines Förderbandes vorgesehen ist. Die Fördereinrichtung 12 wird mit Hilfe eines Servomotors angetrieben. Die Glasscheibe 1 mit appliziertem, den Abstandhalter bildenden Strang 2 wird in die Position einer Einrichtung 13 zum Aufwärmen von Anfang 4 und Ende 5 des Stranges 2, danach in die Position, einer Einheit 14, mit welcher Anfang 4 und Ende 5 des applizierten, den Conveyor 12 is provided in the form of a roller conveyor or a conveyor belt. The conveyor 12 is driven by means of a servomotor. The glass sheet 1 with applied, forming the spacer strand 2 is in the position of a device 13 for warming up the beginning 4 and end 5 of the strand 2, then in the position of a unit 14, with which beginning 4 and end 5 of the applied, the
Abstandhalter bildenden Stranges 2 miteinander dicht verbunden werden, bewegt. Schließlich wird die Glasscheibe 1 mit Spacer forming strand 2 are tightly connected to each other, moves. Finally, the glass sheet 1 with
geschlossenem Abstandhalter in eine Station (nicht gezeigt) für den Zusammenbau eines Isolierglas-Rohlings (gegebenenfalls unter Füllen mit einem von Luft verschiedenem Gas) weiter gefördert. g closed spacer in a station (not shown) for the assembly of an insulating glass blank (optionally with filling with a gas other than air) further promoted. G
Die Einrichtung 13 zum Anwärmen und die Einheit 14 sind in ihrer Wirkstellung bei einem Rollenförderer zwischen benachbarten Rollen angeordnet. Bei einer Förderbänder umfassenden The device 13 for heating and the unit 14 are arranged in their operative position at a roller conveyor between adjacent rollers. In a conveyor belts comprehensive
Fördereinrichtung 12 sind die Einrichtung 13 und die Einheit 14 in Unterbrechungen der Fördereinrichtung, beispielsweise Conveyor 12, the device 13 and the unit 14 in interruptions of the conveyor, for example
zwischen Förderbandabschnitten, angeordnet oder das Förderband ist im Beriech der Einrichtung 13 und/oder der Einheit 14 nach unten umgelenkt. between conveyor belt sections, arranged or the conveyor belt is deflected in the Beriech of the device 13 and / or the unit 14 downwards.
Für gewöhnlich müssen Anfang 4 und Ende 5 des den Abstandhalter bildenden Stranges 2 nur nach Betriebspausen angewärmt werden, um ein sicheres und dichtes Verbinden derselben möglich zu machen . Usually, the beginning 4 and end 5 of the spacer forming strand 2 must be warmed only after breaks in operation in order to make a secure and tight connection possible.
Wie in Fig. 3 gezeigt, umfasst die Einheit 14 zum Verbinden von Anfang 4 und Ende 5 des den Abstandhalter bildenden Stranges 2 zwei Backen, nämlich eine Innenbacke 20 und eine Außenbacke 21, die von beiden Seiten her in Anlage an den Anfang 4 und das Ende 5 des applizierten Stranges 2 angelegt werden, um diese zu verpressen. Zwischen den Backen, also zwischen der Innenbacke 20 und der Außenbacke 21 ist ein Stempel 22 vorgesehen, der zum Erzeugen eines Bereiches mit verringerter Breite des den As shown in Fig. 3, the unit 14 for connecting the beginning of 4 and the end 5 of the spacer forming strand 2 comprises two jaws, namely an inner jaw 20 and an outer jaw 21, which from both sides into contact with the beginning 4 and the End 5 of the applied strand 2 are applied to press them. Between the jaws, ie between the inner jaw 20 and the outer jaw 21, a punch 22 is provided, which is used to produce a region of reduced width of the
Abstandhalter bildenden Stranges 2 zwischen die Backen 20, 21 vorgeschoben werden kann. Spacer forming strand 2 between the jaws 20, 21 can be advanced.
Fig. 4 zeigt nochmals die Backen 20, 21, die Anfang 4 und Ende 5 des applizierten Stranges 2 zugeordnet sind. Fig. 4 zeigt auch, dass den Backen 20, 21 Heizungen 23, z. B. in Form von Fig. 4 shows again the jaws 20, 21, the beginning 4 and end 5 of the applied strand 2 are assigned. Fig. 4 also shows that the jaws 20, 21 heaters 23, z. B. in the form of
integrierten Heizelementen, zugeordnet sein können, um die integrated heating elements, may be assigned to the
Backen 20, 21 auf eine für das Verarbeiten des thermoplastischen Werkstoffes, aus dem der den Abstandhalter bildende Strang 2 besteht, richtige Temperatur zu erwärmen. Baking 20, 21 on a for the processing of the thermoplastic material from which the spacer forming strand 2 is to heat proper temperature.
Die den Backen 20, 21 zugeordneten Heizungen 23 sind wahlweise alternativ oder zusätzlich zu der beispielswiese als Heißluft- Gebläse ausgebildeten Einrichtung 13 vorgesehen. Fig. 4 zeigt auch, dass wenigstens eine Backe, im gezeigten Beispiel ist dies die Außenbacke 21, eine rinnenförmige The heaters associated with the jaws 20, 21 are optionally provided as an alternative or in addition to the example, designed as a hot air blower device 13. Fig. 4 also shows that at least one jaw, in the example shown this is the outer jaw 21, a trough-shaped
Ausnehmung 23 (Vertiefung) aufweist, in die überschüssiges Recess 23 (recess), in the excess
Material des Stranges 2 eintreten kann, wenn Anfang 4 und Ende 5 des applizierten Stranges 2 zum Verbinden verpresst und der Stempel 22 zum Erzeugen der Vertiefung, also des Bereiches mit verringerter Breite des Abstandhalters vorgeschoben wird. Material of the strand 2 can occur when the beginning 4 and end 5 of the applied strand 2 is pressed to connect and the punch 22 is advanced to produce the recess, so the area with reduced width of the spacer.
Fig. 5 zeigt schematisch ein Beispiel einer Einheit 13 zum Fig. 5 shows schematically an example of a unit 13 for
Erwärmen von Anfang 4 und Ende 5 des Stranges 2 vor dem Heat from beginning 4 and end 5 of strand 2 before
Verbinden, mit welcher der Werkstoff (thermoplastisches Connecting, with which the material (thermoplastic
Material) des Stranges 2 auf die für das Verschließen richtige Temperatur erwärmt werden kann. Im gezeigten Ausführungsbeispiel sind bei der Vorrichtung 13 zum Anwärmen zwei Düsen 24, die einen heißen Gasstrom 25, z. B. Heißluft, abgeben, vorgesehen. Material) of the strand 2 can be heated to the correct temperature for closing. In the illustrated embodiment, in the device 13 for heating two nozzles 24, the hot gas flow 25, z. B. hot air, submit, provided.
In der praktischen, beispielhaften Ausführungsform einer in der erfindungsgemäßen Vorrichtung vorgesehenen Einheit 14, wie sie in den Fig. 6 und 7 gezeigt ist, sind die Backen, nämlich die Innenbacke 20 und die Außenbacke 21, im Maschinenstell 40 um Achsen 30 und 31 verschwenkbar gelagert. Die Backen können mit Hilfe von Druckmittelzylindern 32, 33 (Pneumatikzylindern) an die Innenseite und die Außenseite von Anfang 4 und Ende 5 des applizierten Stranges 2 angelegt werden. In the practical, exemplary embodiment of a unit 14 provided in the device according to the invention, as shown in FIGS. 6 and 7, the jaws, namely the inner jaw 20 and the outer jaw 21, are pivotably mounted in the machine setting 40 about axes 30 and 31 , The jaws can be applied by means of pressure cylinders 32, 33 (pneumatic cylinders) to the inside and the outside of the beginning 4 and end 5 of the applied strand 2.
Fig. 7 zeigt, dass die Außenbacke 21, also die Backe, die an die Außenseite des Stranges 2 im Bereich von dessen Anfang 4 und Ende 5 angelegt wird, in ihrer dem Strang 2 zugekehrten Seite mehrere Freistellungen in Form von rinnen- oder nutförmigen Aussparungen 23 aufweist, in die überschüssiges Material des Stranges 2 eintreten kann, wenn Anfang 4 und Ende 5 verpresst und mit Hilfe des Stempels 22 der vertiefte Bereich, also der Abschnitt des Stranges 2 mit verringerter Breite erzeugt wird. Fig. 7 shows that the outer jaw 21, so the jaw, which is applied to the outside of the strand 2 in the region of the beginning 4 and end 5, in their strand 2 side facing several exemptions in the form of groove or groove-shaped recesses 23, may enter into the excess material of the strand 2 when the beginning of 4 and 5 end pressed and with the help of the punch 22 of the recessed area, that is, the portion of the strand 2 is produced with reduced width.
Der Stempel 22 ist an einem Schlitten 34 moniert, der mit Hilfe eines Druckmittelzylinders 35 (Pneumatikzylinders) vor und zurück geschoben werden kann. Der Schlitten 34 des Stempels 22 ist am Träger 35 der Außenbacke 21, der mit Hilfe eines The punch 22 is attached to a carriage 34, which by means of a pressure medium cylinder 35 (pneumatic cylinder) before and can be pushed back. The carriage 34 of the punch 22 is on the carrier 35 of the outer jaw 21, with the aid of a
Druckmittelmotors 33 um die Achse 31 verschwenkbar ist, geführt. Pressure fluid motor 33 is pivotable about the axis 31, guided.
Fig. 7 zeigt, dass die vordere Stirnfläche des Stempels 22 konvex gekrümmt ist, so dass sich eine muldenförmige Vertiefung, die den Bereich mit verringerter Breite des den Abstandhalter bildenden Stranges 2 bildet, erzeugt wird, wenn der Stempel 22 zwischen den Backen 20, 21, die an die Innenseite und die FIG. 7 shows that the front end face of the punch 22 is convexly curved so that a trough-shaped depression forming the reduced width portion of the spacer forming strand 2 is generated when the punch 22 is between the jaws 20, 21 attached to the inside and the
Außenseite des Stranges 2 im Bereich von dessen Anfang 4 und Ende 5 angelegt worden sind, vorgeschoben wird. Outside of the strand 2 in the area from the beginning 4 and end 5 have been applied, is advanced.
In Fig. 8 sind mögliche Formen der in dem den Abstandhalter bildenden Strang 2 vorgesehenen Vertiefungen in Seitenansicht (also in Richtung der Ebene der Glasscheibe 1 gesehen) FIG. 8 shows possible shapes of the depressions provided in the strand 2 forming the spacer, in a side view (ie viewed in the direction of the plane of the glass pane 1).
dargestellt. Die muldenförmige, also durch einen (Kreis-) Bogen begrenzte Form der Vertiefung, die in Fig. 8 rechts dargestellt ist, ist gegenüber einer Vertiefung mit rechteckigem oder trapezförmigem Querschnitt bevorzugt. shown. The trough-shaped, so limited by a (circular) arc shape of the recess, which is shown in Fig. 8 right, is preferred over a recess with a rectangular or trapezoidal cross-section.
Die die Einheit 14 bildende Baugruppe mit den Backen 20, 21 und dem zwischen diesen vorschiebaren Stempel 22 und mit deren The assembly 14 forming the assembly with the jaws 20, 21 and between these vorschiebaren punch 22 and with their
Antrieben ist auf einem Träger 41 montiert, der quer zur Ebene der Glasscheibe 1 und quer zur Stützwand 11 gemäß Fig. 2 Drives is mounted on a support 41 which is transverse to the plane of the glass sheet 1 and transverse to the support wall 11 of FIG. 2nd
verstellbar ist, um die Backen 20, 21, nachdem eine Glasscheibe 1 mit appliziertem Strang 2 der Einheit 14 gegenüberliegend positioniert worden ist, so weit vorzuschieben, dass die Backen 20, 21 neben der Innenseite und an der Außenseite des Stranges 2 angeordnet sind, wie dies in den Fig. 3 und 6 für bereits an den Strang 2 angelegte Backen 20, 21 gezeigt ist. is adjustable to the jaws 20, 21, after a glass sheet 1 with applied strand 2 of the unit 14 has been positioned opposite to advance so far that the jaws 20, 21 are arranged adjacent to the inside and on the outside of the strand 2, such as this is shown in Figs. 3 and 6 for already applied to the strand 2 jaws 20, 21 is shown.
Die die Einheit 14 bildende Baugruppe ("Verschlusseinheit") ist weiters in einer Richtung parallel zur Glasscheibe 1 The unit forming the unit 14 ("closing unit") is further in a direction parallel to the glass pane 1
verstellbar, damit die Stellung der Backen 20, 21 und des adjustable, so that the position of the jaws 20, 21 and the
Stempels 22 an den Strang 2 - dieser kann gegenüber dem Rand der Glasscheibe 1 mehr oder weniger weit nach innen versetzt angeordnet sein - anzupassen. Stamp 22 to the strand 2 - this can be compared to the edge of the glass pane 1 more or less far inward offset be arranged - adapt.
Zusammenfassend kann ein Ausführungsbeispiel der Erfindung wie folgt beschrieben werden: In summary, an embodiment of the invention can be described as follows:
Beim Herstellen von Isolierglas, umfassend wenigstens zwei Glasscheiben 1 und wenigstens eine zwischen diesen angeordneten Abstandhalter aus thermoplastischem Material wird das In the manufacture of insulating glass, comprising at least two glass sheets 1 and at least one spacer arranged therebetween of thermoplastic material is the
Verschließen von Anfang 4 und Ende 5 des den Abstandhalter bildenden Stranges 2 aus thermoplastischem Material das Closing of beginning 4 and end 5 of the spacer forming strand 2 of thermoplastic material the
thermoplastische Material mit Hilfe von an die Seitenflächen des Stranges 2 angelegten Backen 20, 21 verpresst. Im Bereich der so geschlossenen Stoßstelle zwischen Anfang 4 und Ende 5 des thermoplastic material by means of applied to the side surfaces of the strand 2 jaws 20, 21 pressed. In the area of the so closed joint between beginning 4 and end 5 of the
Stranges 2 wird die Breite des Stranges 2 unter Erzeugen einer Vertiefung mit Hilfe eines Druckstempels 22 mit konvex Strand 2 becomes the width of the strand 2, forming a depression by means of a plunger 22 with convex
gekrümmter Wirkfläche verkleinert. Durch diese Vertiefung ergibt sich nach dem Zusammenbau eines Isolierglas-Rohlings durch reduced curved effective area. Through this depression results after the assembly of an insulating glass blank by
Aufsetzen einer zweiten Glasscheibe auf die freien Ränder des Stranges 2 eine Öffnung, die einen Druckausgleich beim Placing a second glass sheet on the free edges of the strand 2 an opening, the pressure equalization
nachfolgenden Verpressen des Isolierglas-Rohlings erlaubt. subsequent compression of the insulating glass blank allowed.

Claims

Ansprüche : Claims :
1. Verfahren zum Herstellen von Abstandhaltern, bei dem als Abstandhalter ein Strang (2) aus thermoplastischem Material auf eine Glasscheibe (1) aufgebracht wird und bei dem 1. A method for producing spacers, in which a strand (2) of thermoplastic material is applied to a glass pane (1) as a spacer and in which
Anfang (4) und Ende (5) des Stranges (2) miteinander verbunden werden, dadurch gekennzeichnet, dass im Bereich der Stoßstelle, in der Anfang (4) und Ende (5) des Stranges Beginning (4) and end (5) of the strand (2) are interconnected, characterized in that in the region of the joint, in the beginning (4) and end (5) of the strand
(2) miteinander verbunden werden, durch Verformen des (2) are interconnected by deforming the
Stranges (2) eine Vertiefung hergestellt wird, wenn Anfang Stranges (2) a recess is made when beginning
(4) und Ende (5) des Stranges (2) miteinander verbunden werden, und dass zum Herstellen einer Vertiefung ein (4) and end (5) of the strand (2) are interconnected, and that for making a depression
Druckstempel (22) verwendet wird, der vorgeschoben wird, während Backen (20, 21) zum Verbinden von Anfang (4) und Ende (5) des Stranges (2) an die Seitenflächen des Strangs Plunger (22) is advanced, while jaws (20, 21) for connecting the beginning (4) and end (5) of the strand (2) to the side surfaces of the strand
(2) angelegt werden. (2) be created.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass ein Druckstempel (22) verwendet wird, der eine konvex gekrümmte Stirnfläche aufweist. 2. The method according to claim 1, characterized in that a plunger (22) is used which has a convexly curved end face.
3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch 3. The method according to any one of claims 1 or 2, characterized
gekennzeichnet, dass die Backen (20, 21) und der  characterized in that the jaws (20, 21) and the
Druckstempel (22) an der gleichen Stelle des Stranges (2) des Abstandhalters angreifen.  Press the plunger (22) at the same point on the strand (2) of the spacer.
4. Vorrichtung zum Ausführen des Verfahrens nach einem der 4. Apparatus for carrying out the method according to one of
Ansprüche 1 bis 3 mit Backen (20, 21), die an Seitenflächen des Stranges (2) aus thermoplastischem Material zum  Claims 1 to 3 with jaws (20, 21) on the side surfaces of the strand (2) of thermoplastic material for
Verbinden von Anfang (4) und Ende (5) anlegbar sind, dadurch gekennzeichnet, dass ein Stempel (22) vorgesehen ist, der aus seiner Bereitschaftsstellung in eine  Connecting the beginning (4) and end (5) can be applied, characterized in that a punch (22) is provided, which from its standby position in a
Wirkstellung, in der er zwischen den Backen (20, 21) angeordnet ist, vorschiebbar und der wieder zurück in die Bereitschaftsstellung verstellbar ist. Active position in which it is arranged between the jaws (20, 21), can be advanced and the back to the ready position is adjustable.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Backen (20, 21) aus einer, im Abstand vom Strang (2) aus thermoplastischem Material liegenden 5. Apparatus according to claim 4, characterized in that the jaws (20, 21) of one, at a distance from the strand (2) made of thermoplastic material
Bereitschaftsstellung in eine, den Strang (2) aus  Ready position in one, the strand (2)
thermoplastischem Material seitlich überdeckenden  thermoplastic material laterally covering
Wirkstellung und viieder zurück verstellbar sind.  The working position and the back are adjustable.
6. Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Backen (20, 21) von beiden Seiten her mit einer Schwenkbewegung an die Seitenflächen von Anfang (4) und Ende (5) des Stranges (2) anlegbar sind. 6. Apparatus according to claim 4 or 5, characterized in that the jaws (20, 21) from both sides with a pivoting movement to the side surfaces of the beginning (4) and end (5) of the strand (2) can be applied.
7. Vorrichtung nach einem der Ansprüche 4 bis 6, dadurch 7. Device according to one of claims 4 to 6, characterized
gekennzeichnet, dass wenigstens eine der Backen (20, 21), insbesondere die an die Außenseite des Stranges (2) anlegbare Backe (21), wenigstens eine Freistellung (23), insbesondere in Form einer, beispielsweise rinnenförmigen, Aussparung vorgesehen ist.  in that at least one of the jaws (20, 21), in particular the jaw (21) which can be applied to the outside of the strand (2), is provided with at least one release (23), in particular in the form of a groove, for example groove-shaped.
8. Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch 8. Device according to one of claims 4 to 7, characterized
gekennzeichnet, dass eine, eine Verschlusseinheit (14) bildende Baugruppe, umfassend die zwei Backen (20, 21) und den Druckstempel (22), auf einem Träger (41) vorgesehen sind, der linear parallel zur Ebene der Glasscheibe (1) , auf der ein Strang (2) appliziert worden ist, verschiebbar ist .  in that an assembly forming a closure unit (14) comprising the two jaws (20, 21) and the plunger (22) is provided on a support (41) which is linearly parallel to the plane of the glass sheet (1) a strand (2) has been applied, is displaceable.
9. Vorrichtung nach einem der Ansprüche 4 bis 8, dadurch 9. Device according to one of claims 4 to 8, characterized
gekennzeichnet, dass den Backen (20, 21) und dem  characterized in that the jaws (20, 21) and the
Druckstempel (22), insbesondere der die genannten Bauteile umfassenden Baugruppe (14), eine Vorrichtung (10) zum  Plunger (22), in particular of the components (14) comprising said components, a device (10) for
Fördern von Glasscheiben (1), auf denen ein Strang (2) aus thermoplastischem Material aufgebracht ist, zugeordnet sind.  Conveying glass sheets (1) on which a strand (2) of thermoplastic material is applied, are assigned.
10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Vorrichtung (10) eine Einrichtung (11) zum seitlichen Abstützen der Glasscheibe, welche Einrichtung im 10. Apparatus according to claim 9, characterized in that the device (10) comprises means (11) for laterally supporting the glass sheet, which means in
Wesentlichen lotrecht ausgerichtet ist, und am unteren Rand der Einrichtung (11) zum Abstützen eine Einrichtung (12) zum Fördern umfasst.  Is substantially vertically aligned, and at the bottom of the means (11) for supporting a means (12) for conveying comprises.
11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Einrichtung (11) zum Abstützen eine Luftkissenwand, ein Rollenfeld oder ein Stützwalzenfeld ist. 11. The device according to claim 10, characterized in that the means (11) for supporting an air cushion wall, a roller field or a Stützwalzenfeld.
12. Vorrichtung nach Anspruch 10 oder 11, dadurch 12. Apparatus according to claim 10 or 11, characterized
gekennzeichnet, dass die Einrichtung (12) zum Fördern am unteren Rand der Abstützeinrichtung einen Rollenförderer und/oder einen Förderbandförderer umfasst.  in that the device (12) for conveying at the lower edge of the support device comprises a roller conveyor and / or a conveyor belt conveyor.
13. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, dass im Falle eines Förderers (12) in Form eines Förderbandes, insbesondere eines Zahnriemens, das Förderband im Bereich der Baugruppe (14), umfassend die Backen (20, 21) und den Stempel (22), nach unten ausgelenkt ist. 13. The apparatus according to claim 12, characterized in that in the case of a conveyor (12) in the form of a conveyor belt, in particular a toothed belt, the conveyor belt in the region of the assembly (14), comprising the jaws (20, 21) and the punch (22 ), is deflected downwards.
14. Vorrichtung nach einem der Ansprüche 5 bis 13, dadurch 14. Device according to one of claims 5 to 13, characterized
gekennzeichnet, dass eine Einrichtung (13) zum Anwärmen des den Abstandhalter bildenden Stranges (2) vorgesehen ist, wobei die Einrichtung (13) zum Anwärmen vorzugsweise wenigstens eine Düse (24), aus der erwärmtes Gas, z. B. Luft, strömt, umfasst.  characterized in that means (13) are provided for heating the strand forming the spacer (2), the heating means (13) preferably comprising at least one nozzle (24) from which heated gas, e.g. As air flows, includes.
15. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass die Einrichtung (13) zum Erwärmen von Anfang (4) und Ende (5) des Stranges (2), bezogen auf die Förderrichtung, vor der Baugruppe (14), umfassend die Druckbacken (20, 21) und den Stempel (22), vorgesehen ist. 15. The apparatus according to claim 14, characterized in that the means (13) for heating the beginning (4) and end (5) of the strand (2), relative to the conveying direction, in front of the assembly (14), comprising the pressure jaws ( 20, 21) and the punch (22) is provided.
EP15705476.8A 2014-01-28 2015-01-26 Method of manufacturing insulating glass panels with thermoplastic spacer Active EP3099880B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT592014 2014-01-28
PCT/AT2015/000008 WO2015113080A1 (en) 2014-01-28 2015-01-26 Method and device for producing thermoplastic spacers

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EP3099880A1 true EP3099880A1 (en) 2016-12-07
EP3099880B1 EP3099880B1 (en) 2019-12-04

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EP (1) EP3099880B1 (en)
KR (1) KR101851355B1 (en)
CN (1) CN105960503B (en)
EA (1) EA031688B1 (en)
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Publication number Priority date Publication date Assignee Title
DE102014115218B3 (en) * 2014-10-20 2016-04-14 Bystronic Lenhardt Gmbh Method for forming a closed frame-shaped spacer for an insulating glass pane
DE102015122882A1 (en) * 2015-12-29 2017-06-29 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
IT201600082108A1 (en) 2016-08-04 2018-02-04 Forel Spa DOSING DEVICE FOR THE EXTRUSION OF A BICOMPONENT OR MONOCOMPONENT SEALANT.
IT201600082082A1 (en) 2016-08-04 2018-02-04 Forel Spa DOSING DEVICE FOR CONTINUOUS EXTRUSION AND THE APPLICATION OF A SPACER PROFILE OF AN INSULATING GLASS.
US10618370B2 (en) 2016-09-02 2020-04-14 Mando Corporation Active roll stabilizer
IT201900016250A1 (en) 2019-09-13 2021-03-13 Forel Spa DEVICE AND PROCEDURE FOR THE EXTRUSION AND APPLICATION OF THE SPACER PROFILE OF THE INSULATING GLASS

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Publication number Priority date Publication date Assignee Title
DE4231424C2 (en) 1992-09-19 1998-04-09 Lenhardt Maschinenbau Method and device for assembling insulating glass panes, the glass panels of which are held at a distance by a plastic spacer and glued to one another
DE4433749C2 (en) * 1994-09-22 2002-11-21 Lenhardt Maschinenbau Method and device for applying a plastic spacer to a glass sheet
WO1998022687A1 (en) * 1995-05-25 1998-05-28 Luc Lafond Apparatus for the automated application of spacer material and method of using same
DE19617198A1 (en) 1996-04-29 1997-11-13 Lenhardt Maschinenbau Process for the production of insulating glass panes with thermoplastic spacers
AT407279B (en) * 1998-11-19 2001-02-26 Lisec Peter METHOD FOR ASSEMBLING INSULATING GLASS WITH A THERMOPLASTIC SPACER
DE102005044860A1 (en) * 2005-09-13 2007-03-15 Lenhardt Maschinenbau Gmbh Insulating pane of glass, comprises two sheets of glass adhered to one another via a plastic spacer
DE102009035002A1 (en) 2009-07-24 2011-01-27 Bystronic Lenhardt Gmbh Method for producing an insulating glass pane
CN103204640A (en) * 2012-01-17 2013-07-17 滕少波 Production method for vacuum glass and vacuum glass

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KR20160113239A (en) 2016-09-28
EA031688B1 (en) 2019-02-28
KR101851355B1 (en) 2018-04-23
EA201691381A1 (en) 2016-11-30
US20160326794A1 (en) 2016-11-10
CN105960503A (en) 2016-09-21
WO2015113080A1 (en) 2015-08-06
EP3099880B1 (en) 2019-12-04
CN105960503B (en) 2017-08-25
US10385609B2 (en) 2019-08-20

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