EP0857848B1 - Method and device for the assembly of insulating glazing panels - Google Patents

Abstract

The various glass panels are moved horizontally into an assembly and pressing device and arranged in pairs, two glass blanks (55) are positioned conforming with each other and sealed simultaneously. During sealing the glass blanks are held at constant spacing from each other with the spacing pref. less than the thickness of the panels. One or more pairs of nozzles are used for sealing. The nozzles (70,71) are mounted side by side and moved along the edges of the two blanks in synchronization. The nozzles can be mounted on a common support. They can be resiliently sprung to cling against the edges of the panes independently of each other.

Description

In vertical insulating glass production lines, insulating glass panes and glass panels, from which insulating glass panes are assembled, on a horizontal conveyor standing, supporting a few degrees inclined to the vertical processed. On the horizontal conveyor coming from a washing machine Glass panels are consecutively checked for cleanliness. For the Production of insulating glass panes, which consist of two glass panels, will open Every second glass panel glued a frame-shaped spacer or by extruding a thermoplastic strand applied. The horizontal conveyor conveys the glass panels sequentially into an assembly and pressing device, which usually consists of two parallel pressing plates, one of which is fixed and the other, by contrast, variable in length is. First, the first glass sheet in the assembly and pressing device encouraged, leaning against the fixed pressure plate; she will be in a predetermined Positioned, then the movable press plate of the first Approximated glass plate, it absorbs, takes it from the first press plate and remove her from this one. The first press plate is then free to the second, with the glass plate provided with the spacer, which is now inserted in the assembly and pressing device is conveyed until they match the first glass sheet dekkungsgleich opposite. Then the movable press plate of the fixed Pressing plate approximated to assemble the two press plates and to compress.

In order to achieve that in insulating glass panes, the surfaces, which with the Supporting the horizontal conveyor have come into contact, always lie outside, is in the production line following the station, in which a spacer glued to one of the glass panels, according to one in the DE-44 37 998 A1 disclosed proposal a section of the horizontal conveyor together with supporting device around a parallel to the glass panel, i.w. vertical axis around 180 ° rotatable. This will get to the relevant section of the horizontal conveyor standing glass panel on a parallel to their original orbit Train. On the original track, a second glass panel can be congruent to be positioned to the first glass panel and together they can in the through the two tracks predetermined distance in an assembly and pressing device be transferred to be put together and pressed into it.

Users of insulating glass production lines demand ever shorter cycle times. The Tact time is the time between the completion of two consecutive Insulating glass panes. The cycle time is through the slowest operations in an insulating glass production line, which are the assembly and pressing (especially when the assembly and Pressing device also for filling the insulating glass pane with a heavy gas as argon is used, see e.g. DE-38 32 836 A1 and the DE 40 22 185 A1) as well as the sealing process, in which in the edge joint bounded by the spacer and the two glass plates is a hardening one Plastic, usually a polysulfide, is filled (DE 28 16 437 C2, DE 28 46 785 C2).

From DE 92 05 069 U it is already known in an assembly and Pressing device, which a fixed press plate and opposite her has two separately movable press plates, two insulating glass panes at the same time assemble, fill with a heavy gas and compress. To four glass panels are successively in the assembly and pressing device transferred and paired in pairs, in pairs Approximated, her space filled with a heavy gas and then pressed them to form two insulating glass blanks.

The present invention has for its object to provide a method and apparatus for assembling insulating glass panes, which can shorten the cycle time compared to conventional vertical production lines for insulating glass panes.

This object is achieved by a method with the specified in claim 1 Characteristics and by a device with the specified in claim 7 Features. Advantageous developments of the invention are the subject of dependent claims.

According to the invention in a sealing station two congruent Insulating glass blanks positioned congruently and sealed at the same time. For the production of the same size insulating glass panes, there is a need e.g. in large building projects, in which a large number of equal sized windows is provided, as well as with standardized window sizes. Automatic working Sealing devices, which not only one, but two insulating glass panes seal at the same time, are not yet known. For insulating glass panes with standardized dimensions can be one automatically working sealing device, which e.g. from DE-28 16 437 C2 and DE-28 46 785 C2 is known to be converted without much effort, so that they are responsible for the sealing of two congruent arranged insulating glass blanks suitable. For this one only has to do the stand The technique provided by single nozzles replace with two in matching Distance juxtaposed nozzles, which preferably at one common carrier, synchronously on the edge of the insulating glass panes moved along and synchronously fed with sealant, expediently from a common source with a common pump. To compensate for unevenness and dimensional tolerances on the glass sheet edges However, the two nozzles are preferably cushioned individually so that they themselves clinging to the two insulating glass pane edges independently of each other can.

If the two insulating glass panes in the sealing station congruent are positioned and promoted, they could, if not a liner is present, leaving scratches on each other. Therefore it is planned that the two insulating glass blanks during sealing and in conveying in held the sealing station at a constant distance from each other become. This distance should be smaller than the thickness of the insulating glass panes, e.g. only 1 mm or 2 mm. Preferably, for this purpose Shims, e.g. Cork tiles, on one of the insulating glass blanks glued. Such cork tiles are also useful when the insulating glass panes after sealing, be placed on transport racks and at each other lean.

As a horizontal conveyor is particularly suitable in the sealing station EP-A-0 549 648 B1 known conveyor with V-shaped supports, in particular bands on which the two insulating glass blanks support only with their outer lower edges, whereas their two inner, mutually adjacent glass panels mutually support each other. The lower Edge joints are thus optimally accessible for sealing and the risk contamination of the horizontal conveyor with sealant is especially low. To be able to take full advantage of the time clock gain is in one preferred training provided preceding in one of the sealing station Assembly and pressing device two glass panel pairs at the same time first to assemble and then to press. In contrast to the DE 92 05 069 U, however, the required four glass panels are not individually consecutive transferred to the assembly and pressing device, but rather they are already pairwise parallel and congruent at a distance from each other positioned and positioned so the two glass panel pairs simultaneously transferred to the assembly and pressing device and therein simultaneously first joined together and then pressed, if necessary, even before the final Pressing filled with a heavy gas, especially after one of the in the DE 40 22 185 A1 and DE 38 32 836 A1 disclosed method. The positioning the glass panels parallel and congruent to each other, hereinafter also as Pairing may, prior to transfer into the assembly and pressing device take place while still in the assembly and pressing device the two previous glass panel pairs joined together, if necessary with a Heavy gas filled and pressed. After that, the assembly and Pressing device is opened again and the two compressed insulating glass blanks have left the assembly and pressing device can the two subsequent glass panel pairs simultaneously in the assembly and Shrinking device. The period from the beginning of the run up to the Beginning of the closing of the assembly and pressing device can be compared with the period of time for which disclosed in the DE-92 05 069 U Working method is required to be reduced to about 1/3 to 1/4. Corresponding decreases the cycle time of the assembly and pressing device of which depends on the cycle time of the insulating glass production line as a whole.

To pair the glass sheets before entering the assembly and pressing apparatus, there are various possibilities. Particularly preferred is the procedure specified in claim 3, in which the two first of the four glass sheets are positioned one behind the other, pivoted through 180 ° and thereby reach a parallel to their first path second path and then with the following on the first path third and fourth Glass panel to be brought to coincidence. This is possible, for example, by a novel use of the turning station known from DE-44 37 998 A1, which in the method described in DE-44 37 998 A1 can bring only one pair of glass sheets to cover each other and then transfer them into the assembly and pressing device , According to the invention, however, such a rotating station is now used to receive four glass panels and to position them in pairs congruently. For this purpose, in contrast to the disclosure in DE-44 37 998 A1 by the turning station is not already completed after positioning the first glass sheet rotation, but only after the positioning of two glass sheets one behind the other on the same path, so that two glass panels simultaneously a second web is pivoted, whereupon the first web is available for running in and positioning the third and fourth glass sheets. Matching four sheets of glass in this way requires little more time than pairing two pieces of glass.

The first two promoted one after the other on a horizontal conveyor Glass panels are stopped in predetermined positions and then together rotated by 180 °, but not one vertical axis, but one to them parallel axis, which is about the same angle as the supported glass sheets inclined to the vertical. As a result of the rotational movement by 180 ° The first two glass sheets in their final position parallel to their starting position on a conveyor track parallel to its original conveyor track. In this Location is the support device, against which the first two Glass panels could lean in their initial position, not below, but above the glass panels, so that additional means are provided to the To hold glass panels on their outside or at their edges so they do not fall off. As a means. around the first two glass panels on their outside Suction conveyor belts, as disclosed in EP-A-0 225 429, are suitable are; such suction conveyor belts can not only keep the glass panels hanging, but also further. As a means, the first two sheets of glass on her To hold edge, one could use grooved rollers whose axes of rotation are oriented at right angles to the glass table running level and in their grooves, the glass panels engage with their upper and lower edges. Especially, however, will preferably, the first two glass sheets by two horizontal lines of To support support rollers, which act on their later inner surface, namely along its lower and upper edge, where the glass panels after assembly Have contact with the spacer or with a sealing compound, that is, in a region in which originates from the contact with the support rollers Traces are harmless. These support rollers define the glass run level the second conveyor track.

If the first two glass panels are rotated 180 °, the third and fourth Glass panel (preferably carry a spacer) promoted in the turning station and be brought to coincide with the first two sheets of glass. From the Turning the four pairs of mutually parallel glass panels still unconnected enter the assembly and pressing device, each on their conveyor track. The first conveyor is located at the stationary Press plate of the assembly and pressing device. To achieve one Parallel second conveyor track are the support and funding of the in the Turning station located second conveyor track continued in the assembly and Pressing device. If, for example, suction conveyors are used as conveying means, so you can the movable press plate of the assembly and pressing device Equip with such Saugförderbändem, which from the rotary station take over the next two glass panels, weiterfördem and thereby hold at the same time. However, if you use in the turning station as preferred two support roller lines for supporting the first two glass panels on the upper and lower edge of its inner surface, then you can see these support roller lines continue into the nip of the assembly and pressing device.

At the bottom of the stationary press plate are usually driven Roles as a subsidy. Such roles can also be seen on the moving Provide press plate.

In principle, the two glass panel pairs can be consecutively in succession promote the assembly and pressing device. The shortest cycle time reached However, if you put the two glass panel pairs simultaneously in the turning station promotes. While in the assembly and pressing device, the two previous insulating glass panes can be assembled, the four subsequent Glass panels are already running into the turning station, paired in it and afterwards transferred in pairs simultaneously in the assembly and pressing device as soon as it is ready and open.

Compared to a conventional vertical production line can be characterized significantly reduce the cycle times.

Be the four glass panels simultaneously in the assembly and pressing device promoted, then that has the further advantage that one there with a common Drive requires, in particular with common drive rollers on bottom edge of the two press plates; in this case you can instead of one Support roller row for the lower edge of the first two glass panels at the stationary Preßplatte attached conveyor rollers to below the movable press plate extend and provide on the conveyor rollers a series of flanges, as a stop and guide for the bottom of the first two glass panels serve.

In known assembly and pressing devices lifts, the glass panels before assembly with a lifting device by a small amount from the horizontal conveyor. Accordingly, one expediently also in the device according to the invention, but here lifts all glass panels at the same time, and to the extent that the lower glass panel edge over the flanges lies. In this position, the movable press plate to the first two Glass panels are pushed to suck them. If that happens, can the support roller line for the upper edge of the glass sheet from the press nip upwards be moved out. By moving the press, the insulating glass panes can be assembled in a conventional manner. Is the moving one Press plate as in DE-40 22 185 A1 with a device for bending the first Glass panel or the first two sheets of glass can be used in the assembly and pressing device also very quickly and efficiently a gas exchange in the assembled, but by turning a glass panel still partially open Insulating glass blanks are made.

To support the first two glass panels in the turning station after turning To be able to, you can on both sides of each of the two conveyor tracks of the turning station the plane containing the conveying direction and the axis of rotation, separate Provide support roller rows, with their distance to adapt to different thick glass panels can be changeable. Easier and completely adequate it is, however, to provide common support rollers for both conveyors, whose axes of rotation lie in that plane which the conveying direction and the Includes rotary axis. The distance of these support rollers of the support device for The outer surface of the glass panels is determined by how thick the processed Glass panels are maximum. On the other hand, that means that the first two Glass panels of a glass panel pair after turning 180 ° with their top Edge of the support means for its outer surface away against the support rollers fall for their inner surface. However, it has been shown that this short case is completely harmless for the glass panels.

Instead of the first two glass panels by means of a turning station from a first on To implement a second orbit, one can also use the first and the second glass panel simultaneously move parallel to itself from the first lane to the second lane. This can be achieved, e.g. with two parallel on a common frame mutually mounted horizontal conveyors, which in particular is driven roller lines. Above each horizontal conveyor there is a support means, e.g. a row of freewheeling rollers, to which the glass plate standing on the relevant horizontal conveyor can lean. Such a device is operated so that the first two Glass panels arrive on the track formed by the first horizontal conveyor and positioned one behind the other. Then the frame with the two Horizontal conveyors moved back transversely to the conveying direction, so that by the second horizontal conveyor formed second course takes the place, the had previously taken the first lane, and on this track are now the Third and fourth glass panel promoted and congruent with the first and positioned second glass panel. From this position, the two can Glass panel pairs then unconnected in the assembly and pressing device be transferred for this purpose with appropriate funding must be equipped, which also in the case of using a turning station applies. Compared to the use of a turning station, this solution has the advantage However, it has the disadvantage that at the third and fourth Glass panel the later inner surfaces of the insulating glass touched with the Have funding.

By combining an inventively working assembly and Pressing device with a sealing device according to the invention, which are both capable of producing two insulating glass blanks at the same time To edit, you can achieve a maximum cycle time gain: the cycle time of a Insulating glass production line can be reduced by up to 50%!

Figur 1

zeigt eine Anordnung aus einer Drehstation und einer Zusammenbau- und Preßvorrichtung in der Draufsicht,

Figur 2

zeigt die Drehstation aus Figur 1 in der Vorderansicht,

Figur 3

zeigt die Drehstation aus Figur 2 in einer Seitenansicht mit Blickrichtung in Förderrichtung,

Figur 4

zeigt das Detail Y aus Figur 3,

Figur 5

zeigt die Zusammenbau- und Preßvorrichtung aus Figur 1 in einer Seitenansicht mit Blickrichtung in Förderrichtung,

Figur 6

zeigt das Detail X aus Figur 5,

Figur 7

zeigt eine Anordnung aus einer Glastafeln quer versetzenden Station und einer Zusammenbau- und Preßvorrichtung in der Draufsicht,

Figur 8

zeigt die Glastafeln quer versetzende Station aus Figur 7 in einer Seitenansicht mit Blickrichtung in Förderrichtung,

Figur 9

zeigt das Detail Z aus Figur 8,

Figur 10

zeigt einen Abschnitt einer Fertigungslinie für Isolierglasscheiben in der Draufsicht, und

Figur 11

zeigt einen vertikalen Teilschnitt durch eine Versiegelungsstation, gemäß Schnittlinie XI-XI in Figur 10.

Further features and advantages of the invention will become apparent from the following description of embodiments of the invention. Like and corresponding parts are designated in the examples with corresponding reference numerals.

FIG. 1

shows an arrangement of a turning station and an assembly and pressing device in plan view,

FIG. 2

shows the turning station of Figure 1 in front view,

FIG. 3

shows the rotary station of Figure 2 in a side view looking in the conveying direction,

FIG. 4

shows the detail Y of FIG. 3,

FIG. 5

shows the assembly and pressing device of Figure 1 in a side view looking in the conveying direction,

FIG. 6

shows the detail X of FIG. 5,

FIG. 7

shows an arrangement of a glass panels transverse displacement station and an assembly and pressing device in plan view,

FIG. 8

shows the glass panels transversely offset station of Figure 7 in a side view looking in the conveying direction,

FIG. 9

shows the detail Z of FIG. 8,

FIG. 10

shows a section of a production line for insulating glass panes in the plan view, and

FIG. 11

shows a vertical partial section through a sealing station, according to section line XI-XI in Figure 10.

FIG. 1 shows a turning station 1 and an assembly and pressing device 2. Glass panels 10, 10 ', 11, 11' are the turning station 1 by a horizontal conveyor 3, which consists essentially of a horizontal line of synchronously driven rollers 4, which are located near the bottom Edge of a designed as an air cushion wall support wall 5 are, which by a few degrees, in particular by 6 °, inclined to the vertical. Of the Horizontal conveyor sets in different training through the turning station 1 and the assembly and pressing device 2 passes through in a horizontal conveyor 3 'with the same structure as him the horizontal conveyor 3 for has the conveying of assembled insulating glass blanks.

The turning station has on a foot 6 a according to the inclination of the support wall 5 bogie 7 slightly inclined to the horizontal, on which two mutually parallel conveyor tracks 8 and 9 are provided, each consisting from a horizontal row of synchronously driven rollers 4 and 4 'with matching diameter whose axes of rotation in a common Plane lie, which runs at right angles to the support wall 5. For supporting the glass sheets 10, 10 'and 11, 11' standing on the rolls 4, 4 'has the Turning instead of a fixed support wall support roll lines, one each Support roller line 12 and 13 in conjunction with the two rows of driven Rollers 4 and 4 ', wherein between each two driven rollers 4, 4' a Support roller is located, the slightly above the top of the driven up Rollers 4, 4 'protrudes. One of the two conveyor tracks 8 and 9 is still a third Support roller line 14 associated, which is substantially the same level with the Support roller rows 12 and 13 is, but is between these two, and Although so that the support rollers of the support roller line 14 in the spaces between engage the driven rollers 4, 4 'one of the two conveyor tracks.

In the alignment of the axes of rotation of the free-running support rollers in the support roller rows 12, 13 and 14 further support rollers are arranged, the three horizontal, upper Support roller lines 15, 16 and 17 form horizontal at the bottom Hollow profile strips 18 are attached, passing through two transverse to them Arms 19 are connected to two columns 20 of the bogie and are guided from relocatable. The columns 20 are perpendicular to the plane of rotation 21 of the bogie 7.

The rollers 4 in one conveyor track 8 are separated from the rollers 4 'in the other Conveyor 9 drivable. The two electric motors intended for this purpose are designated 22 and 23.

The bogie 7 runs with several wheels 24 on a circular path 25 on the Top of the foot 6. The rotary drive is via a z. B. pneumatically engageable Friction gear. The axis of rotation 26 of the turning station runs centrally in Regarding the length of the turning station and is close to the plane in which the Axle of the support rollers of the central support roller lines 14 and 17 are.

The immediately following the turning station 1 subsequent assembly and pressing device 2 has on a frame 27 a fixed, designed as an air cushion wall Support wall 28, which also serves as a fixed press plate; she has the same inclination as the support wall 5 and as by the support roller 12 rows and 15, 13 and 16, respectively, defined glass sheet layers. Parallel to the supporting wall 28, a further support wall 29 is provided whose distance from the fixed Supporting wall 28 is variable by spindle drives 30; this mobile Supporting wall 29 is also formed as an air cushion wall and serves as a movable Press plate extending at right angles to the conveying direction 31 Rails 32 is supported, these rails 32 in addition to the spindle drives 30 also serve as a parallel guide for the press plate 29.

Just below the stationary press plate 28 is a horizontal line of driven Rollers 33 are provided which are so wide that they still can extend to below the edge of the movable press plate 29 when the press nip 34th so far is that in him the thickest in practice occurring insulating glass panes can be assembled. The rollers 33 are in flight the rollers 4 and 4 'of the rotating station. 1

On guide rails 35 and 36, which at the two ends of the stationary Press plate 28 are provided, a bar 37 is motor up and down movable led, attached to which a further horizontal row of support rollers 38 is. Their axes are parallel to the press plates 28 and 29 and their common, the movable press plate 29 adjacent tangential plane is aligned with corresponding edges of flanges 39 (see Figures 5 and 6), which together with the support rollers 38, the run level for the first two Define glass panels 10 and 10 'in the assembly and pressing apparatus and the first two glass sheets 10, 10 'at the lower and upper edges on its inner side support.

Below the rollers 33, a lifting beam 40 is provided, the lifting cam 41st carries, which engage in the space between two rollers 33 and on this standing glass panels 10, 10 'and 11, 11' can raise.

The device can work as follows:

A first glass sheet 10 is conveyed on the horizontal conveyor 3, passes in the turning station 1 on the rollers of the conveyor track 8 and is at the bottom Edge by the support rollers 12 and at the top by the support rollers 15th supported. It is stopped when it has a first vertical edge predetermined position near the front in the conveying direction 31 end of Turning station 1 has reached. The first glass sheet 10 follows on the same conveyor track 8, a second glass sheet 10 '; as soon as they enter the turning station with their trailing edge 1 is stopped, it is stopped in a predetermined second position and the Turning station is rotated by 180 °. It is then in the position that is in Figures 1 to 4 is shown. The first glass plate 10 and the second glass plate 10 'fall with its upper edge of the support roller line 15 against the adjacent Support roller line 17. The drivable rollers 4 are during the rotational movement blocked so that the glass sheets 10 and 10 'can not run away. After the rotary motion completes by 180 ° and the bogie in his is fixed on new position, the horizontal conveyor 3 is a third with a Spacer 42 occupied glass panel 11 'on the conveyor track 9 in the turning station 1 in which it runs on the driven rollers 4 'and below is supported by the support rollers 13 and above by the support rollers 16. The third Glass panel 11 'is so far promoted at stationary conveyor 8 until they congruent next to the second glass panel 10 'is. The third glass sheet 11 ' Follows on the conveyor track 9, a fourth glass panel 11, which congruent with the first glass sheet 10 is positioned. From this position, the two glass panel pairs 10 and 11 and 10 'and 11', as soon as the assembly and Pressing device is ready and open, together at the same time in their Pressing gap 34 promoted. The driven rollers 4, 4 'and 33 are coincident a little adjusted in the direction of travel, that the glass panels against the stationary pressing plate 28 are guided with the result that the first two Glass panels 10 and 10 'with its lower edge in the direction of the support rollers fourteenth and finally against the flanges 39 are performed, whereas the third and fourth glass sheet 11, 11 'reliably in their by the support rollers 13 and 16 and defined by the front of the stationary press plate run level remain. The support rollers 38 in the assembly and pressing station 2 are accurate in the flight of the support rollers 17 of the rotating station. 1

The two glass panel pairs 10 and 11 and 10 'and 11' are synchronously forward moved until they are stopped in a predetermined position (see Figure 1). The Glass panel pair 10 ', 11' is then located with its leading edges at the outlet end the assembly and pressing device, whereas the pair of glass sheets 10, 11 with its trailing edges at the inlet end of the assembly and pressing device 2 is located. Now the lifting bar 40 is raised and with them the Glass panels 10, 10 ', 11 and 11', so that their lower edge above the flanges 39 is located. Then, the movable press plate 29 becomes the first two Glass plates 10 and 10 'driven to suck them, including the pressing plate 29 openings has, which are connected to the suction side of a blower. simultaneously the flow direction of the air is formed at the air cushion wall as stationary pressing plate 28 vice versa, so that there the third and fourth glass sheet 11 and 11 'are sucked. The lifting bar 40 is then lowered slightly, the movable press plate 29 moves against the stationary press plate 28 and pushes the first two glass sheets 10 and 10 'against the third and fourth glass sheet 11 and 11 'adhesive spacer 42 and builds in this way two insulating glass blanks together at the same time, their edge joints on the outside of the spacer still need to be filled with sealant.

If the insulating glass panes are to be filled with a heavy gas then that is in the same assembly and pressing device 2 possible. To this end are a provided at the inlet end first segment and at the outlet end provided second segment of the movable press plate 29 behind covers 43 and 43 '(Figure 1) provided with additional suction and of the stationary press plate 28 away bendable. This can be the first glass panel 10 at its edge, which at the inlet end of the assembly and pressing device 2, are bent, while at the same time the second Glass panel 10 'at its edge, which at the outlet end of the assembly and Pressing device 2 is located, can be bent while the two glass plates 10 and 10 'remain sucked by the movable pressure plate 29. So bent The first two glass sheets 10 and 10 'to the spacers 42nd placed on the other two glass plates 11 and 11 ', wherein due to the curved Glass panels 10 and 10 'between them and the respective spacer 42nd a gap remains, through which a gas exchange can take place. Is the gas exchange completed, the bending of the glass sheets 10 and 10 'is reversed and the insulating glass blanks are pressed. Because of the closer Details are made to DE-40 22 185 A1.

After pressing the insulating glass blanks, the assembly and Pressing device 2 is opened and the blanks are simultaneously on the Horizontal conveyor 3 'carried off.

Once the two glass panel pairs 10 and 11 and 10 'and 11' completely in the Assembly and pressing device 2 are running, the bogie 7 turned back in the rotating station 1 by 180 ° and takes in the described Identify the next four sheets of glass in turntable 1 in the time span until the completion of the preceding in the assembly and pressing device 2 Assembly process congruently positioned (paired) and then ready to run into the assembly and pressing device 2.

Insulating glass panes can also be produced with the devices described which are assembled from three sheets of glass. To do this first in the manner described from two glass sheets two insulating glass blanks assembled. Meanwhile, a fifth and a Sixth glass panel conveyed into the turning station, positioned as before the glass panels 10 and 10 'and then rotated together by 180 °. Once the two out of each two blanks formed blanks are assembled, they are from the Assembling and pressing device 2 conveyed out to the following Horizontal conveyor 3 'are stopped there and the first two glass panels 10 and 10 'provided with a further spacer. Meanwhile, the fifth and sixth glass plate on the second conveyor track 9 of the movable press plate 29 supplied. Thereafter, the occupied with the second spacer Blanks returned to the assembly and pressing device 2 and there positioned congruent with the fifth and sixth glass panels, assembled therewith, if necessary, combined with a heavy gas filling. Then the assembled Triple insulating glass blanks pressed and conveyed away. The feeding of the fifth and sixth glass panel in the assembly and Pressing device 2 regardless of returning the previously assembled Double disc blanks works with the same drive, because the fifth and sixth glass sheet before returning the blanks through the lifting cams 41 can be lifted from the driven rollers 33.

Instead of pairing the glass panels 10 and 11 and 10 'and 11' with a turning station 1, You can also with a transversely to the conveying direction 31 staggering Position pairing station 44 in pairs congruently. This case is in 7 to 9, wherein the mating station 44 subsequent Assembly and pressing device 2 is the same as in Figure 1.

The mating station 44 has on a frame 45 two perpendicular to the conveying direction 31 extending rails 46 and 47, on which two horizontal conveyor 48 and 49 with parallel conveyor tracks 8 and 9 along the rails 46 and 47 are mounted displaceably. The conveyor tracks 8 and 9 can a have the conveyor tracks in the rotating station 2 (Figure 4) corresponding structure with two rows of driven rollers 4 and 4 'and with two support roller rows 13 and 14; Because of closer details can therefore on the description of the Rotary station be referenced. In the flight of the rotary axes of free-wheeling Support rollers 13 and 14 are further support rollers 16 and 17 are provided, which form two horizontal upper support roller lines, which at the bottom of horizontal hollow profile strips 18 are mounted, passing through them transversely Arms 19 are connected to two columns 20 of the frame 45 and are guided from slidably. The columns 20 are a few degrees backwards inclined.

This device operates e.g. as follows:

First, the conveyor track 8 is aligned with the horizontal conveyor 3. A first Glass panel 10 'is promoted on the horizontal conveyor 3, arrives in the Pairing station 44 on the rollers of the conveyor track 8 and is at the bottom supported by the support rollers 14 and at the top by the support rollers 17. The first glass sheet 10 'is conveyed to a first position in which her vertical front edge at the outlet end of the mating station 44 is located. Of the first glass sheet 10 'is followed by a second glass sheet 10 on the same conveyor track eighth and is positioned in a second position, in which its vertical rear edge at the inlet end of the mating station 44 is located. The horizontal conveyors 48 and 49 are now moved together across the conveying direction 31, until instead of the conveyor track 8, the conveyor track 9 in the flight of the horizontal conveyor 3 is located. Now, a third glass sheet 11 'and a following her fourth glass panel 11 coming from the horizontal conveyor 3 on the horizontal conveyor Pass 49 on which they are on the driven rollers 4 and at the bottom by the support rollers 13 and at the top by the support rollers 16 are supported. The glass sheets 11 'and 11, which both have a Wear spacers 42 are congruent in the mating station 44 the glass sheets 10 'and 10 positioned. This condition is shown in FIG. If the subsequently arranged assembly and pressing device 2 is free and open, then the two glass panel pairs 10 'and 11' and 10 and 11 by Driving the rollers 4 and 4 'in the assembly and pressing device 2 transferred and positioned and processed there accordingly, as based on the first Example with the turning station has been described.

Whether the glass panels now with a turning station 1 or with a transversely offset Mating station 44, in both cases the assembly and pressing device 2 of the section shown in Figure 10 an insulating glass production line consequences. Figure 10 shows the assembly and pressing device 2 in the conveying direction 31 then an intermediate transport device 50 with the horizontal conveyor 3 'at the bottom of an air cushion wall formed support wall 51; followed by a station 52, in which distance tiles can be glued to an insulating glass blank; followed by a mating station 53, in which two identically sized insulating glass blanks can be arranged congruent side by side; followed by one Sealing station 54.

The intermediate transport device 50 serves to remove the two components from the assembly and pressing device 2 coming insulating glass slices 55th to take and, if necessary. To park, as long as the subsequent station 52 still is not free.

The station 52 is like the station 50 from a horizontal conveyor 3 '' with driven rollers at the bottom of a few degrees inclined backwards Air cushion wall 56. Here every second insulating glass blank 55 can be stopped be placed on its free outside some shims, e.g. out Cork, to stick.

Station 53, like station 50, has a driven roller Horizontal conveyor 3 '' 'at the bottom of a slightly inclined rear air cushion wall 57, which opposite a lifter 58 is arranged, which one or more directed against the air cushion wall 57 sucker, with which is an insulating glass pane blank standing on the horizontal conveyor 3 '' ' 53 sucked, lifted off the horizontal conveyor 3 '' 'and the air cushion wall 57 can be removed.

The sealing station 54 has two horizontal conveyors 59 and 60 at the bottom Edge of air cushion walls 61 and 62. In this case, the horizontal conveyors 59 and 60 not rows of driven rollers, but V-shaped arranged endless belts 63 and 64, which stretched over driven rollers 65 and 66 are. Such a horizontal conveyor is detailed in the EP 0 549 648 B1, which is hereby incorporated to avoid repetition Reference is made. In a gap 67 between the two air cushion walls 61 and 62, a sealing head 68 is provided, which is connected to one of the Air cushion wall 61 perpendicular axis 69 is pivotable. The sealing head 68 carries two identical, juxtaposed nozzles 70 and 71, with a crowned front edge of the insulating glass blanks 55 can be applied to seal their edge joints 72 and 73. Between the nozzles 70 and 71 and the sealing head 68 are compression springs 74 and 75, for a resilient abutment of the nozzles 70 and 71 at the edge the insulating glass blanks 55 provide. The sealing head 68 can not pivoted only about the axis 69, but in the gap 67 between the two Air cushion walls 61 and 62 are moved parallel to these up and down. Into the sealing head 68, a feed line 76 leads into it, whereby the two Nozzles 70 and 71 are supplied with sealing compound at the same time.

The two nozzles 70 and 71 are located on a common carrier 77th and can work with this to adapt to insulating glass blanks with a changed distance between the two glass sheets 10 and 11 or 10 ' and 11 'and / or with changed glass panel thicknesses.

The section of the production line shown in FIGS. 10 and 11 operates eg. as follows:

Two insulating glass blanks assembled in the assembling and pressing device 2 55 are out of this together on the intermediate transport device 50 promoted. The first of two insulating glass blanks 55 runs unprocessed by the station 52 in the station 53, is there in a predetermined position, preferably so that its front edge is located at the outlet end of the support wall 53 is there by the lifting device 58, lifted from the conveyor track 3 '' 'and more than its thickness removed from the air bag wall 57. The second, subsequent insulating glass blank 55 is stopped at station 52, with some shims 78 (see Figure 11) pasted and then further promoted in the station 53 to exactly the position at which previously the now hanging on the lifting device 58 first insulating glass blank was located, which is now on the horizontal conveyor 3 '' 'deferred and coincident with the already there standing second insulating glass blank 55 is positioned, the two Blanks are held by the spacer plate 78 at a distance.

Once the sealing station 54 is ready to record, the two become one Pair of assembled insulating glass blanks 55 from station 53 transferred to the horizontal conveyor 59 and further to the horizontal conveyor 60 and with their vertical trailing edges at the inlet end of the horizontal conveyor 60 positioned. In this position, with the two nozzles 70 and 71 First, the two rear edge joint sections sealed by the nozzles 70 and 71 from bottom to top along the edge of the insulating glass blanks along to be moved. Once they arrived at the back upper corner of the blanks are, the sealing head 68 is pivoted by 90 °, so that the nozzles 70 and 71 facing down, as shown in Figure 11. Now the two Insulating glass blanks 55 from the horizontal conveyor 60 on the horizontal conveyor 59 moves back until the nozzles 71 and 70 at the front upper corner of Arriving blanks. The movement of the blanks is then stopped, the nozzle head 68 again rotated by 90 ° and at the front edge of the Blanks moved down to fill the edge joint sections lying there. When the nozzles 70 and 71 arrive at the front lower corner of the blanks 55, They are again rotated 90 °, after which their openings after pointing up, and now the two blanks from the horizontal conveyor 59 transferred to the horizontal conveyor 60, wherein the underlying edge joint sections to be sealed.

With more than one nozzle head, other movements can be realized which are described in DE-28 16 437 C2 and DE-28 46 785 C2 are.

By a hoist, not shown, the finished sealed insulating glass panes lifted off the horizontal conveyor 60 and parked on transport racks become.

The horizontal conveyors 59 and 60 can be equal to each other in thickness Insulating glass blanks 55 are set. So that the two Blanks only with their two outer glass panels 10 'and 11 on the conveyor belts 63, 64, as shown in Figure 11, the vertex 79 of the V-arrangement in the flight of the middle of the gap between the two blanks 55 lie. For this purpose, the V-arrangement in the direction of the axes 80 of the belt 63 carrying rollers 65 displaced. Because of closer details will open EP 0 549 648 B1.

Claims (18)

1. Method for assembling and sealing insulating glazing panes made from glass plates (10, 10', 11, 11') in an orientation inclined by a few degrees relative to the vertical, including the steps of:

   conveying a first and a second glass plate (10, 10') as well as a third and a fourth glass plate (11, 11') horizontally into an assembly and compression device (2);

   positioning the congruent glass plates (10, 10', 11, 11') in pairs in the assembly and compression device (2);

   joining the pairs of glass plates (10, 10', 11, 11') to form two insulating glazing pane blanks by parallel displacement of one of the glass plates (11, 11') of one pair of glass plates (10, 10', 11, 11');

   compressing the blanks (55) so formed;

   transferring the blanks to a sealing station (54);

   sealing the insulating glazing pane blanks (55);

   characterized in that two congruent insulating glazing pane blanks (55) are positioned in registry and sealed simultaneously.
2. The method as defined in Claim 1, characterized in that the two insulating glazing pane blanks (55) are held at a constant spacing one from the other during sealing.
3. The method as defined in Claim 2, characterized in that the spacing is smaller than the thickness of the insulating glazing panes.
4. The method as defined in any of the preceding claims, characterized in that one or more than one pair of nozzles (70, 71) are used for sealing, which nozzles are arranged one beside the other and are moved in synchronism along the edges of the two insulating glazing pane blanks (55).
5. The method as defined in Claim 4, characterized by the use of two nozzles (70, 71) arranged on a common carrier (77).
6. The method as defined in Claim 5, characterized by nozzles (70, 71) that are resiliently supported independently one from the other.
7. Device for sealing the edge joint (72, 73) of insulating glazing panes or their blanks (55) comprising a horizontal conveyor (59, 60) on which the insulating glazing panes or their blanks (55) are placed in upright position, and a supporting arrangement located above the horizontal conveyor (59, 60), against which the insulating glazing panes or blanks (55), being positioned on the horizontal conveyor, come to lean, in combination with a nozzle (70, 71) that can be moved along the edge of the insulating glazing panes or their blanks (55) and that is supplied with a sealing compound, characterized in that for sealing two insulating glazing panes or their blanks (55), arranged in registry, two nozzles (70, 71) which are arranged one beside the other and are resiliently supported one separately from the other, are moved in synchronism along the edges of the two insulating glazing panes or their blanks (55) and are supplied with sealing compound in synchronism.
8. The device as defined in Claim 7, characterized in that the two nozzles (70, 71) are arranged on a common carrier (77).
9. The device as defined in Claim 7 or Claim 8, characterized in that the nozzles (70, 71) are supplied from a common source.
10. The device as defined in any of Claims 7 to 9, in combination with a horizontal conveyor (3"') for insulating glazing pane blanks (55) arranged before that conveyor and comprising a supporting arrangement (57) arranged above the horizontal conveyor (3"'), against which the insulating glazing pane blanks (55) come to lean, in combination with a lifting arrangement (58) by means of which an insulating glazing pane blank (55) can be lifted off, and can be placed back on, the horizontal conveyor (3"').
11. Method for assembling and sealing insulating glazing panes made from glass plates (10, 10', 11, 11') in an orientation inclined by a few degrees relative to the vertical, according to any of Claims 1 to 6, by the following steps before transfer of the insulating glazing pane blanks (55) to the sealing station (54):

    horizontally conveying a first glass plate (10), supported by one of its surfaces, in that orientation to a predefined first position on a first track (8);

    horizontally conveying a second glass plate (10'), supported by one of its surfaces, in that orientation to a predefined second position on the first track (8);

    transferring the first and the second glass plates (10, 10') to a second track (9) parallel to the first track;

    horizontally conveying a third glass plate (11), supported by one of its surfaces, in that orientation to a predefined first position on the first track (8);

    horizontally conveying a fourth glass plate (11'), supported by one of its surfaces, in that orientation to a predefined second position on the first track (8), with either the first and second (10, 10') or the third and the fourth glass plates (11, 11') carrying a frame-like spacer (42) on their non-supported surfaces;

    positioning the two pairs of glass plates (10, 10', 11, 11') in parallel and in registry at a certain spacing one from the other;

    simultaneously transferring the pairs of glass plates (10, 10', 11, 11') positioned in this way to an assembly and compression device (2);

    simultaneously joining the two pairs of glass plates (10, 10', 11, 11') to form two insulating glazing pane blanks (55) by parallel displacement of the first and the second glass plates (10, 10') or of the third and the fourth glass plates (11, 11'); and

    compressing the blanks (55) simultaneously.
12. The method as defined in Claim 11, characterized in that the two pairs of glass plates (10, 10', 11, 11') are conveyed to an assembly and compression station (2) simultaneously.
13. The method as defined in Claim 11 or Claim 12, characterized in that the glass plates (10, 10', 11, 11') are supported during conveying by those of their surfaces, which later will face away from each other in the insulating glazing pane, hereinafter referred to as their outer surfaces;
    that once the first and the second glass plates (10, 10') have reached their first or their second position, respectively, they are turned by 180° about an axis extending in parallel to that orientation and located in front of the line of their inner surfaces (i.e. the surfaces of the glass plates that face each other in the insulating glazing pane), whereby they are transferred to the second track (9) parallel to the first track (8) where being held by their edge or their outer surface.
14. The method as defined in Claim 13, characterized in that the third and the fourth glass plates (11, 11') carry the spacer (42).
15. The method as defined in Claim 13 or 14, characterized in that the first glass plate (10) is held by its edge during conveying and by its outer surface during assembly of the insulating glazing pane.
16. The method as defined in Claim 11 or Claim 12, characterized in that the first and the second glass plates (10, 10') are moved from the first track (8) onto the second track (9) simultaneously and in parallel to themselves.
17. The method as defined in any of Claims 1 to 6, characterized by the use of a device
    comprising a horizontal conveyor (59, 60), which has an endless conveyor member (63, 64) provided with supporting surfaces on which insulating glazing panes (55) are placed in upright position,
    and a supporting arrangement (61, 62) extending above the horizontal conveyor (59, 60) and in parallel to the latter and defining a plane of movement for the panes by one or more supporting elements against which the insulating glazing panes (55) placed on the horizontal conveyor (59, 60) come to lean, with the supporting surfaces lying in the line of two planes which are parallel to the conveying direction (31) and which form a wedge that opens towards the top and whose bisectrix is a plane parallel to the plane of movement of the panes,
    and where the horizontal conveyor (59, 60) can be displaced at a right angle to the conveying direction (31) and in parallel to that supporting surface which neighbors the plane of movement of the panes,
    for conveying two congruently arranged insulating glazing panes or their blanks.
18. The method as defined in any of Claims 1 to 6, characterized by the use of a device
    comprising a horizontal conveyor which is subdivided into a plurality of separately driven sections and which is provided, in each of its sections, with a carrying means (4, 4'), on which the lower edge of glass plates (10, 10', 11, 11') can be placed, and a supporting means (15, 16, 17) for supporting the glass plates (10, 10', 11, 11') in an orientation inclined by a few degrees relative to the vertical,
    and comprising an assembly and compression device (2) in one section of the horizontal conveyor, with a first pressure plate (28) having that same orientation and with a second pressure plate (29), extending in parallel thereto and being variable in spacing, with means for holding a first glass plate (10, 10') by that surface which faces the first glass plate (28),
    where one section of the horizontal conveyor, located upstream of the assembly and compression device (2), comprises two mutually parallel conveyor tracks (8, 9) in the same orientation,
    the section, which comprises the two conveyor tracks (8, 9) together with the supporting arrangements (15, 16, 17) can be turned by 180° about an axis having the same orientation and extending between them,
    and where supporting arrangements (14, 17), which can be brought into contact with the edge of the glass plates or with the inner surface of the glass plates along its edge, are provided between the supporting arrangements (15,16) for the outer surface of the glass plates (10,10', 11, 11') and the plane through the axis that extends in parallel to the conveying direction (31), of which the supporting arrangements (17) intended for the upper edge of the glass plates, are adjustable in height,
    or the supporting arrangements for the outer surface of the glass plates (10, 10', 11, 11') are provided with means for drawing the glass plates close by suction,
    and where the two conveyor tracks (8, 9) continue up to and into the assembly and compression device (2).

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