DE19533855C1 - Method for assembling insulating glass plates - Google Patents

Abstract

An outwardly open edge seam (6) is limited by the outside (5) of the distance holder (4) and the glass panes (1,1a) and is filled with a hardening sealing mass. The distance holder is additionally provided with one or more distance pieces (8), the distance dimension of which is equal to the distance between the two glass panes. Along the distance holder, the distance pieces are spaced apart. The distance holder is provided with the distance pieces only in the area of the upper edge (3) of the insulating glass plates. The upper edge of the insulating glass plates is limited by two corners (2). On each of the two corners one or two distance pieces are arranged. Distance pieces are provided on the outside (5) and the inside of the distance holder.

Description

The invention is based on a method with the in the preamble of the pronounced 1 characteristics.

From DE-U 94 15 335 U1 it is known to use insulating glass panes with a frame gem, thermoplastic spacer between two individual glass panels assemble by extruding the spacer onto one of the two Glass panels along their edge and at a distance from their edge, joining gen of the two glass sheets to a semi-finished insulating glass pane so that this are glued together by the spacer, and pressing the semi-finished insulating glass pane, so that the glass panels under simultaneous Upset the spacer a predetermined distance from each other men. The semi-finished insulating glass pane has one through the outside of the Ab standman and limited by the two glass panels, open to the outside Edge joint, which is subsequently filled with a pasty sealing compound which is usually one of two with each other  mixed components existing plastic mass, which is hardening tet and thereby creates a firm bond between the glass panels. As from curing sealants are common, but polysulfides (thiocols) also polyurethane. Butyl is a material for thermoplastic spacers rubbers (polyisobutylene) in use. Both the material of the thermopla tical spacer as well as the curing sealant applied in a hot, flowable state. Immediately after application The plastic materials are the composite of the glass panels in the insulating glass pane not yet mechanically resilient. The mechanical strength of the connector manure increases with the progressive hardening and cooling of the materials.

Insulating glass panes are usually stored upright by using their lower edge placed on a transport frame and with an inclination of unsung lean against a support device about 6 ° from the vertical. Such a transport frame accommodates a large number of insulating glass panes the insulating glass panes are in succession and each because the rearmost insulating glass pane on the support of the transport frame is present. The fact that the insulating glass panes on each other on the transport frame the back, the front insulating glass pane exercises on the rear insulating glass cut out a pressure, which is the largest at the rear insulating glass pane ten is because the pressure of the individual insulating glass panes of the stack summed up. In the case of insulating glass panes that are made of hollow metal profile bars spacers glued to the glass panels, this pressure has an effect not detrimental. For insulating glass panes with thermoplastic spacers it is different because they have to wait a certain amount of time before the spacer and the sealing compound have solidified so far that the pressure load without reducing the specified distance between can withstand the glass panels. It is therefore known the insulating glass after sealing, do not put the panes on transport racks immediately but to store them temporarily in a cross conveyor in which they are not together but are supported individually, at a distance from each other. On  such cross conveyor is known from DE-U 93 15 857 U1. The cycle time of the Cross conveyor is determined by the cycle time of the insulating glass assembly line, because it receives the insulating glass panes coming from the assembly line must. The length of the cross conveyor is dimensioned so that the insulating glass slices, if they are removed at the end of the cross conveyor, so far are cured so that they can be stacked on transport racks as usual can. The disadvantage of such a cross conveyor is that it has the space needs for an insulating glass production line enlarged and a not insignificant Chen requires equipment.

It is already known from EP 0 060 202 B1 to frame insulating glass panes shaped, thermoplastic spacer between each two individual Glasta assemble by extruding the spacer onto one of the the glass panels along their edge and at a distance from their edge, oversight of the extruded spacer with a sequence of spacers, the Di stamping dimension is the specified distance between the two glass sheets, joining of the two glass sheets to a semi-finished insulating glass pane so that this are glued together by the spacer, pressing the semi-finished insulating glass pane, so that the glass panels under simultaneous jam Chen the spacer take a predetermined distance from each other, Pour an initially paste-like sealant into the glass panels and the spacer limited, outwardly open edge joint, and curing the sealant. The spacers are used in this case, safely make sure that the desired air between the insulating glass is pressed space between the glass panels is not exceeded. they allow immediately after sealing an immediate transfer and stacking on usual transport racks. The attachment of the Di Stamped pieces are complex and can practically only be done when the glass sheet is lying down hen because the lower edge of the standing glass panel is difficult to access.

The difficulty of spacers along the bottom of a glass sheet to avoid, DE 37 19 599 A1 avoids by using balls as spacers used one after the other in the thermoplastic material to be extruded be embedded. However, this makes the extrusion process extremely difficult Lich and requires that the width of the extruding spacer be substantial must be greater than its height in order to ensure adequate insulation tightness ensure glass pane. Another difficulty is that the distance pieces on the surface of the Ab visible in the finished insulating glass pane able to hike.

The present invention has for its object to open up a possibility show how insulating glass panes with thermoplastic spacers with low rem effort and without the risk that the predetermined distance Glass panels in the insulating glass pane get lost from the sealing station an insulating glass production line transferred to conventional transport racks and thereon can be stacked.

To achieve this object, the method specified in claim 1 is proposed beaten, which to insulating glass panes with the specified in claim 13 features. Advantageous developments of the invention are counter stood the subclaims.

According to the invention, during or after extrusion of the spacer, but before pressing the semi-finished insulating glass pane, the spacer only in the area of the upper edge or near the upper edge of the iso lierglass pane additionally provided with one or a few spacers, de distance is the specified distance between the two glass panels and which if at least two spacers are provided, along the spacer are at a distance from each other. This way only one or a few selected places, preferably at exactly two places, the predetermined distance between the two glass panels by additional spacers  secured, which are attached to the thermoplastic spacer, and only in the area of the upper edge or near the upper edge the insulating glass pane, because this is where the stacking of the insulation works laminated glass panes on the transport frames. Will be at the top Edge or near the top of the insulating glass panes of the previous level distance of the glass panels secured by such additional spacers, then at no point can the insulating glass pane by stacking the pre given distance. By having one or a little spacers in the area of the upper edge of the insulating glass pane comes, is the way for an easy application of the Di punch pieces opened.

In order to withstand the task of resisting the pressure forces that occur during stacking and to keep distance, to do justice, the spacers must of course ne have adequate rigidity. It can be bars or plates from one be sufficiently dimensionally stable plastic, ceramic or metal.

If only one spacer is provided, then this must be arranged in the middle and must over a sufficiently long section on the glass panels to fit in side loading a tilting of one glass sheet against the other glass sheet avoid. It is cheaper to provide at least two spacers, the egg NEN should be as far apart as possible so that one-sided loading loads do not cause one glass sheet to tip against the other glass sheet can. It is best to only provide spacers in two places, at rectangular glass panels preferably in the area of the two upper corners, because there the arrangement is the easiest to do and the least annoying.

Since only a few spacers are provided for each insulating glass pane, in the simplest case, they can even be attached by hand during the thermoplastic spacer is extruded, so that an extension of the  The cycle time of the insulating glass production line does not occur. The attachment of the Di stampings can also be automated, e.g. B. by the fact that the Trä the nozzle through which the spacer is extruded, an applicator for the spacers, which runs after the nozzle and on the vorese places at the top of the glass panel, the spacers on the just extru attached portion of the spacer. But it is also possible for To provide spacers an applicator, the movement of which does not match the loading movement of the nozzle is coupled, rather with an independent drive is provided and on the designated places on the upper edge of the Glasta fel is delivered as soon as the extruding the thermoplastic spacer Nozzle along the upper edge of the glass sheet.

Modern production lines for insulating glass are numerically controlled. The the ar computer that controls operations knows which glass sheet formats follow one another conditions and which glass panel distances are specified. Therefore there is also Possibility to numerically assign the applicator for the spacers accordingly control and its drive the appropriate positions for the spacers and specify the distance dimension for the spacers.

If the spacers are attached to the outside of the spacer, then it has the advantage that it is between the spacer and the sealing mass are embedded and are not visible to the outside. Will the Spacers attached to the inside of the spacer, the Possibility of making minor position corrections on the spacer with their help men or correct the corner formation or the joint between an cover and end of the extruded spacer. For these purposes platelet spacers are particularly suitable, including angled spacers pieces which are arranged to overlap a corner of the spacer. On such internally attached spacers, a Her can also be used with advantage position detection, e.g. B. a type designation, a date of manufacture, a brand or the like are attached.  

Another possibility is to make the spacers pin-like or rod-shaped mig training and across the surface of the glass sheet in the still soft Ab push the stand in. Such an arrangement has the advantage that the Ab stands invisible and thanks to the thermoplastic material of the Ab is fixed well from the start. For spacers that are on the Be applied inside or on the outside of the spacer to ensure a suitable fixation, ideally by the distance pieces have projections on the back, with which preferably a positive fit sig toothing can be done with the spacer. Become the distance pieces arranged on the outside of the spacer, prepares the fixation no problems, since the soft, thermoplastic material is sticky and the Di stampings supported.

Embodiments of the invention are in the accompanying drawings shown.

Fig. 1 shows a portion of a square glass plate with plastic From spacers and additional spacer in the region of the corner, in a plan view,

Fig. 2 shows the section II-II through the representation in Fig. 1,

Fig. 3 shows a glass sheet as in Fig. 1, but with a spacer overlapping the corner of the spacer,

Fig. 4 shows the section IV-IV through the arrangement in Fig. 3,

Fig. 5 shows the section VV through the arrangement in Fig. 3,

Fig. 6 shows the spacer of Fig. 3 prior to attachment to the spacer,

Fig. 7 shows a glass panel as in Fig. 1, however with a corner of the spacer engages around the outside spacer,

Fig. 8 shows the view VIII-VIII of the embodiment of Fig. 7,

Fig. 9 shows a glass sheet as in Fig. 1, but with two spacers inserted into the plastic spacer,

Fig. 10 shows the section XX of Fig. 9,

Fig. 11 shows a glass sheet as in Fig. 1, but with a platelet gene, placed on the outside of the plastic spacer spacer,

Fig. 12 shows the section XII-XII of FIG. 11,

Fig. 13 shows the view XIII-XIII of FIG. 11,

Fig. 14 shows a glass panel as in Fig. 1, but with a site in the interior of the plastic spacer plugged plate-like spacer,

Fig. 15 shows the section XV-XV of FIG. 14,

Fig. 16 shows the section XVI-XVI of FIG. 14,

Fig. 17 shows a glass panel according to Fig. 1, but with two loading reaching a corner on the outer side of the spacer is arrange th pin-shaped spacers,

Fig. 18 shows the section XVIII-XVIII by the representation in Fig. 17,

Fig. 19 shows a glass panel as in Fig. 1, but with an inner side of the corner of the spacer bridging spacer,

Fig. 20 shows the section XX-XX through the representation in Fig. 19,

Fig. 21 shows a glass panel as in Fig. 1, but with an externally added to the corner of the spacer spacer,

Fig. 22 shows the view XXII-XXII of FIG. 21,

Fig. 23 shows a glass panel as in Fig. 1, but with built-in Innensei the corner of the spacer te spacer inserted,

Fig. 24 shows the section XXIV-XXIV of FIG. 23,

Fig. 25 shows a glass panel as in Fig. 1 but placed with a page on the outside of the spacer, rounded plates as a spacer,

FIG. 26 shows the section XXVI-XXVI according to FIG. 25, and

FIG. 27 shows the view XXVII-XXVII according to FIG. 25.

The same or corresponding parts are in the different Aus leadership examples with matching reference numerals.

The embodiment shown in FIGS. 1 and 2 shows a glass sheet 1 with a right-angled corner 2 . Parallel to the edge 3 of the glass sheet is from 3 to the edge 3 on the glass sheet 1, a thermoplastic spacer 4 is brought up. The spacer 4 has the shape of a closed frame. Be ne outside 5 , the glass sheet 1 and a second, shown in dashed lines in Fig. 2, glass plate 1 a, which supplements the glass sheet 1 to the insulating glass pane, together limit a peripheral edge joint 6 , which is filled with sealing compound after the insulating glass pane blank has been joined together.

The spacer is not strictly rectangular in the area of corner 2 , but has a corner rounded with a small radius with the center of curvature 7 . On the line connecting the center of curvature 7 and the corner 2 , a cylindrical pin 8 is arranged, which is perpendicular to the glass sheet 1 and half of its circumferential surface is immersed in the spacer 4 . This is easily possible if the pin 8 is set as long as the freshly extruded spacer 4 is still soft.

As shown in Fig. 2, the length of the pin 8 is slightly less than the height of the stand holder profile, namely the length of the pin 8 corresponds to the predetermined distance between the two glass sheets 1 of the finished insulating glass pane. If the second glass sheet 1 a, as shown in broken lines in FIG. 2, is attached to the spacer 4 , the distance between the glass sheets 1 and 1 a is initially still greater than the length of the pin 8 . The glass sheets are then pressed while compressing the spacer 4 , so that the glass sheets 1 and 1 a assume their predetermined distance, which corresponds to the length of the pin 8 .

After pressing, the edge joint 6 is filled with a sealing compound. The arrangement of the pin 8 in the area of the corner 2 has a favorable effect because the pin reduces the volume of sealing compound required there, so that the required amount of sealing compound per unit length of the edge joints in the corner area is not as different as without one Pen. A suitable diameter for the pen is 4 mm. The amount by which the height of the spacer profile initially exceeds the length of the pin is before 2 mm.

The pin 8 takes over the task of a spacer in the subsequent handling of the insulating glass pane; it absorbs pressure that is exerted in particular on stacking on a transport frame on the upper area of the insulating glass pane and prevents the spacer 4 from being further compressed by the pressure.

A second spacer 8 in the form of such a pin is expediently located on the second upper corner of the insulating glass pane in an arrangement corresponding to FIG. 1. In the case of very large-sized insulating glass panes, one could think of providing another such spacer in the middle between the two upper corners, but the pressure forces which occur are generally not so high that this would be necessary.

The embodiment shown in FIGS. 3 to 6 differs from the first embodiment in that as a spacer two by a film hinge 9 interconnected plates 10 and 11 are provided, which are slightly bent at the ends 12 to the rear. The 6 being formed distance piece according to FIG. Is anchored to the inside of the spacer 4, and such that the film hinge 9 comes to lie at the apex of the corner of the spacer 4 with the bent ends 12 of claws into the spacer 4. The spacer adheres to the intended location by combining the adhesive effect of the thermoplastic spacer, the clawing and the elastic restoring force of the film hinge.

The plates 10 and 11 can each carry an identifier 13 .

The embodiment shown in FIGS . 7 and 8 differs from the first embodiment in that instead of a pin-shaped spacer 8, a part-cylindrical shaped spacer 14 is provided, which is arranged around the corner of the spacer 4 so that the ends 14 a Immerse in the thermoplastic material.

The embodiment shown in FIGS. 9 and 10 differs from the first embodiment in that instead of a pin arranged in the apex of the corner of the spacer, two pins 15 are arranged on both sides of the top of the corner of the spacer, and they are not in pressed in the outside of the spacer, but penetrate the spacer perpendicular to the plane of the glass sheet 1 . The length of the pins 15 corresponds to the length of the pins 8 in Fig. 2, their diameter is only about half as large.

The embodiment shown in FIGS . 11 to 13 differs from the first embodiment in that instead of a pin-shaped spacer 8, a plate-shaped spacer 16 is attached to the outside of the corner 2 on the upper leg of the spacer 4 and is fixed with a rear rib 17 , which is pressed into the spacer 4 .

The embodiment shown in FIGS. 14 to 16 differs from the previous embodiment in that the plate 18 is somewhat larger and is not attached to the outside but to the inside of the spacer 4 and carries an identifier 13 . The height of the punch 18 is, as in the previous examples, about 2 mm less than the initial height of the spacer profile 4 .

The embodiment shown in FIGS. 17 and 18 differs from the embodiment shown in FIGS. 9 and 10 in that the two pins 15 are not the spacer 4 penetrating centrally net angeord, but are arranged on the outside of the spacer 4 and as in Fig. 1 are pressed with their outer surface about half in the thermoplastic material Ma.

The embodiment shown in FIGS. 19 and 20 differs from the first embodiment in that a rectangular plate 19 is provided as a spacer, which is arranged to bridge the corner of the spacer 4 so that the two edges perpendicular to the plane of the glass sheet 1 19 a intervene in the thermoplastic material from the holder 4 .

The embodiment shown in FIGS. 21 and 22 differs from the first embodiment in that a prismatic pin is provided as a spacer 20 instead of egg nes round pin, the base of which is a right-angled, equilateral triangle, which with its base to the outer corner of the Spacer 4 is pressed and it flattens. The spacer 20 it complements the outer contour of the spacer 4 so that there is almost a right angle geometry, with the advantage that the corner area can be cheaply sealed. A favorable side length of the two equal sides of the base of the prismatic pin is 5 mm.

The embodiment shown in FIGS. 23 and 24 differs from the previous embodiment in that the spacer is designed as a semicircular shaped part 21 which fills the inside of the corner of the spacer 4 . Such a spacer is easy to position and fix and at the same time leads to a clean appearance of the inside corner.

The embodiment shown in FIGS . 25 to 27 differs from the embodiment shown in FIGS . 11 to 13 in that the punching piece is a rounded plate which is placed on the outside of the spacer without an engaging rib 4 in the spacer is fixed there only by gluing.

Claims (26)

1. Method for assembling insulating glass panes with rahmenförmi gem, thermoplastic spacers between two individual glass panels of the insulating glass pane
Extruding the spacer ( 4 ) onto one of the two glass sheets ( 1 ) along its edge and at a distance from its edge,
Joining the two glass sheets ( 1 , 1 ) into a semi-finished insulating glass pane so that they are adhesively connected to one another by the spacer ( 4 ),
Pressing the semi-finished insulating glass pane so that the glass sheets ( 1 , 1 a) are at a predetermined distance from one another while simultaneously compressing the spacer ( 4 ),
Filling an initially paste-like sealing compound into the edge joint ( 6 ), which is open to the outside and is delimited by the glass panels ( 1 , 1 a) and the spacer ( 4 ), and
Curing the sealing compound by placing the insulating glass pane in a store and supporting it in a position inclined to the vertical,
characterized in that during or after the extrusion of the spacer ( 4 ), but before the pressing of the semi-finished insulating glass pane, the spacer ( 4 ) only in the area of the upper edge ( 3 ) or in the vicinity of the upper edge of the glass sheet ( 1 ) is additionally provided with one or a few spacers ( 8-22 ), the spacing of which is the predetermined distance between the two glass sheets ( 1 , 1 a) and which, if necessary, have a spacing from one another along the spacer ( 4 ). 2. The method according to claim 1, characterized in that for extruding the spacer ( 1 ) a nozzle is moved along the edge of the glass sheet ( 1 ) and the nozzle can run an applicator for the spacers ( 8-22 ) at least when the section of the spacer ( 4 ) lying on the upper edge ( 3 ) of the glass sheet is extruded. 3. The method according to claim 1 or 2, characterized in that exactly two spacers ( 8-14 , 16-22 ) are arranged. 4. The method according to any one of the preceding claims for the production of insulating glass panes, the upper edge of which is delimited by two corners ( 2 ), characterized in that one or two spacers ( 8-22 ) are arranged on each of the two upper corners ( 2 ) will. 5. The method according to claim 4, characterized in that the spacers ( 8-22 ) are arranged only in the region of the upper corners. 6. The method according to any one of the preceding claims, characterized in that the spacers ( 8 , 14 , 15 , 16 , 20 , 22 ) are attached to the outside of the spacer ( 4 ). 7. The method according to any one of claims 1 to 5, characterized in that the spacers ( 9-12 , 18 , 19 , 21 ) are attached to the inside of the spacer ( 4 ). 8. The method according to claim 6 or 7, characterized in that the spacers ( 9-14 , 19 , 21 ), the upper limb of the spacer ( 4 ) delimiting corners of the spacer ( 4 ) are arranged overlapping. 9. The method according to any one of claims 1 to 5, characterized in that the spacers ( 8 , 14-19 ) in the still soft spacer ( 4 ) presses or inserted transversely to the surface of the glass sheet ( 1 ). 10. The method according to claim 7, characterized in that the spacers are provided with an identifier ( 13 ). 11. The method according to claim 4 and 6 or 5 and 6, characterized in that three-sided prisms are used as spacers ( 20 ), two sides of which enclose the same angle with one another as the edges of the glass sheet ( 1 ) at the corner ( 2 ), on which the relevant spacer ( 20 ) is arranged, and that the third side of the associated corner of the spacer ( 4 ) abuts. 12. The method according to claim 11, characterized in that the outside of the spacer ( 4 ) is flattened in the region of the corner in question (Fi gur 21). 13. The method according to any one of the preceding claims, characterized in that a positive engagement is made between the spacers ( 14 ) and the spacer ( 4 ). 14. Insulating glass pane with a frame-shaped, thermoplastic spacer ( 4 ) between two individual glass sheets ( 1 , 1 a) of the insulating glass pane and with one limited by the outside ( 5 ) of the spacer ( 4 ) and the glass sheets ( 1 , 1 a) externally open edge joint ( 6 ), in which there is a hardening sealing compound, the spacer ( 4 ) being additionally provided with one or a few spacers ( 8-22 ), the distance between which is the distance between the two glass sheets ( 1 , 1 a) and which may have a spacing from one another along the spacer ( 4 ), characterized in that the spacer is provided with the spacers ( 8-22 ) only in the region of the upper edge ( 3 ) of the insulating glass pane. 15. Insulating glass pane according to claim 14, characterized in that it contains two spacers ( 8-14 , 16-22 ). 16. Insulating glass pane according to claim 14 or 15, the upper edge of which is delimited by two corners ( 2 ), characterized in that one or two spacers ( 18-22 ) are arranged at each of the two corners. 17. insulating glass pane according to claim 16, characterized in that the spacers ( 8-22 ) are arranged only in the region of the two corners. 18. Insulating glass pane according to one of claims 14 to 17, characterized in that the spacers ( 8 , 14 , 15 , 16 , 20 , 22 ) on the outside ( 5 ) of the spacer ( 4 ) are attached. 19. Insulating glass pane according to one of claims 14 to 17, characterized in that the spacers ( 9-12 , 18 , 19 , 21 ) are attached to the inside of the spacer ( 4 ). 20. Insulating glass pane according to claim 18 or 19, characterized in that the spacers (9-14, 19, 21) which delimits the upper leg of the spacer (4) corners of the spacer (4) are arranged across. 21. Insulating glass pane according to one of claims 14 to 17, characterized in that the spacers ( 8 , 14-19 ) are partly surrounded by the thermoplastic mate rial of the spacer ( 4 ) and partly by the sealing compound. 22. Insulating glass pane according to one of claims 14 to 17, characterized in that the spacers ( 15 ) are only in the thermoplastic spacer ( 4 ) and extend transversely to the surface of the glass sheet ( 1 ). 23. Insulating glass pane according to claim 19, characterized in that the Di punch pieces are provided with an identifier ( 13 ). 24. Insulating glass pane according to claim 16 and 18 or 17 and 18, characterized in that three-sided prisms are provided as spacers ( 20 ), two sides of which enclose the same angle with one another as the edges of the glass sheet ( 1 ) at the corner ( 2 ) , on which the relevant spacer ( 20 ) is arranged, and that the spacer ( 20 ) lies at this corner ( 2 ) with its third side on the outside of the spacer ( 4 ), while the other two sides are covered by the sealing compound. 25. Insulating glass pane according to claim 24, characterized in that the outside of the spacer ( 4 ) is flattened abge in the region of the relevant corner ( Fig. 21). 26. Insulating glass pane according to one of claims 14 to 25, characterized in that there is a positive engagement between the spacers ( 14 ) and the spacer ( 4 ).