EP0674086B2 - Assembly method for insulating glazing filled with a heavy gas and filling apparatus therefor - Google Patents

Abstract

The device has vertically directed plates (2) on both sides of the pane to be filled. At least one plate is displaceable crossways to its plane relatively to the other plate. A gastight conveyor device is provided for the insulated glass panes in the area of the lower edge of the plate. Sealing device (80) are fitted in their effective position to the vertical edges of the insulating glass pane. One of the sealing devices is displaceable parallel to the plane of the plates. The sealing device displaceable in the conveyor direction is fitted with its ends on slides (90,91), which are movable parallel to the upper and lower horizontal edge of the one plate (2).

Description

The invention relates to a method with the features of the introductory part of the independent claim 1.

A device of the type mentioned has become known through showcasing. The well-known, 1 and 2 schematically shown device consists of two plates 1 and 2, of which the plate 2 is adjustable relative to the plate 1. In the area the lower edge of the plates 1 and 2 is a conveyor 9 provided in the form of a roller conveyor, the one in the entire length of the lower one Edge of the plates 1 and 2 extending channel 8, above the heavy gas in the space between the plates 1 and 2 can be introduced is arranged. Between plates 1 and 2 is a sliding seal 31 provided. The outlet side (right in Fig. 1) provided seal 30 is in the space between the Plates 1 and 2 can be swiveled in. The bottom of the adjustable plate 1 is opposite a seal 15 sealed the channel 8 (see. Fig. 2). With the known Device is a package consisting of two Glass panes 11 and 13 and one on the glass sheet 11 attached spacer 14 (only schematic in Fig. 1 indicated) by supplied via the channel 8 Heavy gas filled, the package during the filling process stands on the conveyor 9. At this known device, the effective length of the Channel 8 to the length of the insulating glass pane to be produced be limited by the fact that the movable Seal extends into channel 8.

The device made known by showcasing works with assembling Heavy gas filled insulating glass panes after the procedure of the introductory part of claim 1.

The inflow of heavy gas from the channel into the package of glass panes and spacers is included the known device hindered by the roller conveyor, so that swirls arise and much Gas is consumed until the desired fill level is reached is.

The invention has for its object a method for filling insulating glass panes with heavy gas specify that when assembling the insulating glass panes can be applied and where both for the entry of heavy gas and for that Sufficient leakage of air or air-gas mixture large cross sections are available.

According to the invention, this task is performed by one Process of the type mentioned by the solved in claim 1 features.

In the method according to the invention stands for the introduction of heavy gas a gap is available which extends over the entire length of the insulating glass pane extends. Also for the escape of air or air-gas mixture there is a sufficiently large cross-section, e.g. one across from the entrance slit Extending peripheral portion of the insulating glass pane Gap available. These advantages apply also for insulating glass panes other than one have a rectangular or square outline. It can even use round insulating glass panes or which have a contour shape curved in certain areas, according to the procedure according to the invention with heavy gas be filled.

Since in the method according to the invention Heavy gas from at least one opening upwards flows and the heavy gas flow onto the spacer hits, the flow of heavy gas into the room be evened out and adverse eddies avoided.

Another advantage of the method according to the invention is that the size of the space between the plates that are filled with heavy gas that for the heavy gas filled insulating glass pane to be manufactured limited extent just required can be.

Advantageous and preferred embodiments The invention is the subject of dependent claims 3 until 5.

The invention further relates to a device the features of the introductory part of claim 6.

Such a device is through the beginning explained display known.

The invention relates to the device Task based on such a device Feeding heavy gas into an insulating glass pane, the is still open at least at the bottom, so there has an edge gap to improve. The device is also intended for performing the invention Be suitable procedure.

According to the invention, this object is first Line solved by the features of claim 6.

Through the inventive design of the device for feeding heavy gas, this can be done in simple way with the bottom of the panels the device between which the insulating glass pane is arranged, arranged conveyor, from which the glass panes are transported and the filled ones Insulated glass panes are removed, combined become.

Because a facility to limit the effective Length of the interior of the channel on the in the direction measured along the length of the canal Length of the insulating glass pane is provided, the Area in which gas from below into the room between the two plates and thus inevitably in the inside of the insulating glass pane provided there flows to the horizontal length of the insulating glass pane be adjusted.

In a simple embodiment, that the facility to limit the effective Length of the channel is a piston that can be moved in the channel is. By moving the piston, the length of the Range above the heavy gas into the Space enters between the two panels, in size adapted to the insulating glass pane to be produced become.

The piston can be adjusted, for example combined with the adjustment of the sliding sealing strip become. This can be provided according to the invention be that the piston displaceable in the channel an approach through a slot in the channel that is sealed by a seal, protrudes with an adjusting device is coupled.

In practice it can be provided that the piston is sealed by two seals and that the seal the slot of the channel in the area between the Seals are deflected into the interior of the channel and lies radially within the approach. In the area between the shoulder protrudes from the two seals of the piston through the slot of the channel to the outside, whereby in this area (the unpressurized space between the Seals) the sealing tape from the slot to the inside is lifted off and carried out under the approach.

An alternative embodiment is that the seal in the area of the slot of the channel a lip seal with overlapping sealing lips is.

The way the channel connects to the room connected between the two plates is arbitrary. So several round or slit-shaped openings be provided.

In a practical embodiment in which the channel is attached to the guide bar of the belt conveyor is, it can be provided that the belt conveyor two endless belts, in particular two endless toothed belts, and that the openings of the channel in the area a gap between the endless belts provided are. In this way, the openings, through which the channel with the space between the two Plates communicates between the two endless belts be extended upwards and from below something in the space between the two plates protrude.

In one embodiment of the invention, that the belt conveyor, in the area of the fixed Plate of the two plates is arranged. there can be provided that the belt conveyor and the channel connected to it transversely to the fixed plate is adjustable. This embodiment enables the at least one opening through which the channel connects the space between the two panels stands, in relation to the insulating glass pane to be filled align that the spacer frame one insulating glass pane arranged between the plates is arranged opposite.

Fig. 3 eine Vorrichtung in Ansicht ohne bewegliche Preßplatte,

Fig. 4 in Seitenansicht eine gleichzeitig als Presse ausgebildete Vorrichtung in einer ersten Arbeitsstufe,

Fig. 5 die Vorrichtung aus Fig. 4 in einer zweiten Arbeitsstufe,

Fig. 6 die Vorrichtung aus Fig. 4 in ihrer Stellung beim Füllen einer Isolierglasscheibe mit Schwergas,

Fig. 7 eine Einzelheit der Vorrichtung im Bereich des unteren Randes der beiden Platten,

Fig. 8 und 9 schematisch eine Ausführungsform des im Kanal verschiebbaren Kolbens,

Fig. 10 eine erste Ausführungsform einer Dichtung am unteren Rand der beweglichen Platte,

Fig. 11 eine zweite Ausführungsform einer Dichtung und

Fig. 12 eine Ausführungsform der auslaufseitig angeordneten Dichteinrichtung.

Further details and advantages of the invention will become apparent from the following description and the exemplary embodiments of the invention which are shown schematically in the drawings. It shows:

3 shows a device in view without a movable press plate,

4 is a side view of a device simultaneously designed as a press in a first working stage,

5 shows the device from FIG. 4 in a second working stage,

6 shows the device from FIG. 4 in its position when filling an insulating glass pane with heavy gas,

7 shows a detail of the device in the region of the lower edge of the two plates,

8 and 9 schematically an embodiment of the piston displaceable in the channel,

10 shows a first embodiment of a seal on the lower edge of the movable plate,

Fig. 11 shows a second embodiment of a seal and

12 shows an embodiment of the sealing device arranged on the outlet side.

The device shown in Figs. 3 to 6 has two essentially perpendicular, preferably over the Verticals slightly, e.g. 3 to 5 °, inclined backwards, parallel plates 1 and 2.

The plates 1 and 2 can be the plates of a device for pressing insulating glass panes 10 his. In the exemplary embodiment shown, the plate is 1st attached to the frame of the device. The plate 2 is via pressure medium cylinders 5 and 6 in the direction of the double arrow 7 slidable. At the bottom of the fixed Plate 1 is below that between the plates 1 and 2 located space 8, a belt conveyor 9 is provided, on the getting up and against the for example designed as an air cushion wall, fixed to the frame Plate 1 leaning a package consisting of two glass panes 11 and 13 and a spacer 14 in the Room 8 can be funded.

Although not shown in Figures 3 through 7, is along the lower, horizontal edge of the sliding Plate 2 is provided with a seal which plate 2 seals against the belt conveyor 9. embodiments for this are shown in Figs. 10 and 11.

In the embodiment shown in Fig. 10, one is over the entire length of the adjustable plate 2 continuous sealing strip 170 is provided. The sealing strip For example, 170 is used by at least two Pressure medium cylinders 171 worn and carries on their the lower edge of plate 2 and the guide bar 172, on which the upper run 173 of the belt conveyor 9 an elongated seal 175 slides on the opposite side. The seal 175 is in the embodiment shown in FIG. 10 formed and exists as a hose seal for example made of elastically deformable plastic. The seal can be used to increase the sealing effect 175, as soon as the sealing strip 170 in its operative position, in the the seal 175 at the bottom of the adjustable Plate 2 and against the guide bar 172, under Pressure.

The guide bar 172 of the belt conveyor 9 is on its side opposite the sealing strip 170 continuously, for example via a bar 176, with the fixed plate 1 connected, so that there too a gas-tight seal is guaranteed.

In the embodiment shown in Fig. 11 is on the lower edge of the adjustable plate 2 continuously an elastically deformable sealing tab 180 is provided, which is when the movable plate is pushed forward 2 on the arranged below the movable plate 2 Edge of the guide bar 172 of the belt conveyor 9 creates.

The sealing tab 180 shown in FIG. 11 can also be designed as an inflatable hose seal.

An embodiment is also conceivable in which at the lower edge of the movable press plate 2 as Seal a corrugated hose is attached, the under Pressure is set so that the seal from the Side and / or from above to that of the movable Press plate 2 adjacent edge of the guide bar 172 of the belt conveyor 9 creates as soon as the movable Plate 2 is arranged in the position in which heavy gas is initiated.

For loading the air cushion wall, fixed plate 1 is this with a connection 12 equipped for supplying compressed air.

The interior of a in the device according to FIG. 1 or Fig. 2 package of two glass panes 11 and 13 and a spacer 14 is after sealed below by the continuous conveyor belt 9.

One, based on the conveying direction (arrow 25 in 3) is a sealing device 30 arranged on the outlet side perpendicular to the plane of the fixed plate 1 in the Space 8 between the plates 1 and 2 can be pushed forward pivotable about a substantially vertical axis.

The sealing device 30 arranged on the outlet side is in the embodiment of the device shown in Fig. 12 at their upper and lower ends, respectively attached to an arm 107, which is via a pair of parallelogram links 108, 109, in the machine frame is pivotally mounted, is worn. To move the sealing device 30 in its standby position and from this into its operative position (Fig. 12) is a Pressure cylinder 110 provided on a lever 111 attacks. The lever 111 is one of the two connecting link 109 arranged one above the other Shaft 112 non-rotatably connected.

In Fig. 12 it is shown that the sealing device 30 in their operative position not on the vertical outlet side Edges of the insulating glass pane 10, but at the vertical edges 105 and 106 of the plates 1 and 2 abuts.

The second sealing device 31 is in the device in the direction of the double arrow in Fig. 3. For this purpose, the sealing device 31 on the machine frame attached guide rails over slides and displaceable by a drive, not shown his.

The sealing device 30 and / or the sealing device 31 can in a modified embodiment also be arranged on the sliding plate 2.

For feeding heavy gas into the side the sealing devices 30 and 31 limited space 8 between the plates 1 and 2 is in the area of the belt conveyor 9 a channel 122 is provided, from which Heavy gas as symbolized by arrows 156, 157 the belt conveyor 9 flows from below into the room 8. The effective length of channel 122 is determined by a piston 130 to the length of the insulating glass pane 10 limited.

7 to 9 is an embodiment for the Channel 122 shown for supplying heavy gas. at In this embodiment, channel 122 is below the Carrier 120 for the guide bar 172 of the longitudinally Belt conveyor 9 (in the example two endless toothed belts 121) attached. From the interior 123 of the channel 122 boreholes 124 go out with holes 125 in Align carrier 120 and finally to pipe sections 126 cause the gap between the two timing belts Push 121 of the belt conveyor 9 through. The pipe pieces 126 open in room 8 between plates 1 and 2 and especially between the two panes of glass 11 and 13 of the insulating glass pane which has not yet been completed 10 and are aligned so that they the spacer 14 are opposite.

Instead of bores 124, 125 and the raw pieces 126, via which the interior 123 of the channel 122 the space 8 between the plates 1 and 2 in connection stands, can also be a series of longitudinal slots be provided.

The interior 123 of the channel 122 is over a Connection line (not shown) with a source for Heavy gas (rare gas, sulfur hexafluoride or the like) in Connection.

The piston 130, through which the effective length of the Interior 123 of the channel 122 on the horizontal Direction of measured length of the insulating glass pane 10 can be adjusted is opposite channel 122 sealed by two seals 131. Through a Longitudinal slot 134 in the opposite of the holes 124 A portion of channel 122 protrudes 135, which is connected to the piston 130, to the outside. Via this approach 135, the piston 130 can Channel 122 can be adjusted.

The slot 134 in the channel 122 is through a seal 136 sealed in the area of the piston 130, i.e. in the area between the two seals 131 (depressurized space) redirected inwards and under approach 135 is performed. That way the piston 130 can be adjusted as desired without the Tightness of the channel 122 to the outside through the Slot 134 is affected.

It is preferred that the piston be adjusted 130 via its approach 135 with the adjustment of the movable Seal 31 is combined.

The device works, for example, as follows: For example in the one from AT 370 201 B or the device known from AT 370 706 B or by hand from compiled package of glass panes 11 and 13 and a spacer 14, one of which is a sheet of glass 13 below from the one to the other glass pane 11 attached spacers 14 a distance (gap 60) and on the other glass pane 11 attached spacer 14 only in the upper Area rests so that the bottom and partially on the vertical Edges of the glass panes 11 and 13 an access is present in the interior of the package the belt conveyor 9 rising into space 8 between promoted the plates 1 and 2 until you, referred on the conveying direction (arrow 25) more front, more vertical Edge next to the advanced or swung-in Sealing device 30 is located. Now the second sealing device 31 in room 8 between the two plates 1 and 2 moved until they are next to, based on the Conveying direction (arrow 25) rear, vertical edge of the Insulating glass pane 10 lies.

Then the movable plate 2 so far on the fixed plate 1 advanced that the movable Plate 2 the glass sheet 13 adjacent to it touched on the belt conveyor 9 rising edge and the glass pane 13 in the area of its lower one Supports the edge. Once this is done, you can start with gas exchange, as described below become.

With the device according to the invention (cf. Fig. 4 to 6) can also be worked so that during the filling process, the one glass pane 13 on the movable Plate 2 entirely at a distance from the another glass pane 11 attached spacer 14 is held. This is easily possible if the Plate 2 is set up for holding the glass pane 13. For example, the plate 2 in its space 8 between the plates 1 and 2 facing surface Have openings through a line 12 'with negative pressure are applied to the glass pane 13 hold.

As the first step in this variant of assembly an insulating glass pane filled with heavy gas 10 is a first glass sheet 13 on the Plate 1 leaning and supported by the conveyor belt 9 below in space 8 between plates 1 and 2 into one predetermined end position moves (Fig. 4). To the To facilitate transportation of the glass sheet 13, the Plate 1 be designed as an air cushion wall and it will you when transporting the glass sheet 13 via a connecting line 12 compressed air supplied.

As soon as the glass pane 13 reaches its predetermined end position has reached, the adjustable plate 2 is advanced, until they turned towards plate 1 Surface rests on the glass pane 13. Once that is achieved is the plate 2, which at its 8th between the plates 1 and 2 facing side openings has, via a line 12 'with negative pressure charged and at most until then via the line 12 applied to the plate 1 vacuum (for Holding the glass sheet 13 in the predetermined End position) canceled. The plate 2 is with the her captured glass sheet 13 in that shown in Fig. 5 Position moved back.

The next step is the second glass plate 11 with a spacer 14 attached to it in the Space 8 between the plates 1 and 2 up to the predetermined End position transported.

By actuating the pressure medium motors 5 and 6 now the movable plate 2 with the held on it Glass pane 13 in the direction of the fixed plate 1 pushed forward until the glass pane 13 just before the spacer 14 lies on the glass plate 11 (distance a few mm). 6, in the it can be seen that the glass pane 13 is the spacer 14 never touched.

Once this position has been reached the sealing devices 30 and 31 next to the package the glass panes 11 and 13 and the spacer 14 arranged.

Now the actual gas exchange can begin be, in which 9 heavy gas through the belt conveyor initiated and withdrawn air or air-gas mixture is, the withdrawal of air or air-gas mixture can be supported by pumping.

When heavy gas is introduced, it forms in the room 8 between the plates 1 and 2, the side through the Sealing devices 30 and 31 is limited to a lane 160 (Fig. 3), whose interface 161 during the Filling process moves upwards and air afterwards above from space 8 between the glass panes 13 and 11 displaced, as shown in FIG. 3 by arrows 162 is symbolized.

Especially with larger insulating glass panes 10 can heavy gas through the belt conveyor 9 can also be fed at several points at the same time, as symbolized by arrows 156 and 157 in FIG. 3 is.

As soon as inside the insulating glass pane 10 the desired one Degree of filling (about 50% for sound insulation, for full heat protection at least 90% heavy gas inside the insulating glass pane 10) has been reached, the Heavy gas supply interrupted.

If the device with the plates 1 and 2 as Press for the flat pressing of insulating glass panes 10 is designed, the insulating glass panel 10 can also be the same be pressed. Possible constructions for such Press and drive to move the moving Press plate 2 are in DE 31 30 645 Al and AT-A 2956/87, published on June 15, 1990 described. The drives described there (rack and pinion drives or spindle drives) instead of the pressure medium cylinders 5 and 6.

After the pressing process is finished, the movable Plate 2 moved away from plate 1 and the Completely pressed insulating glass pane filled with heavy gas 10, consisting of the two glass panes 11 and 13 and the spacer inserted between them 14, the belt conveyor 9 becomes, for example Sealing station transported.

Claims (14)

1. Method of assembling insulating glass panes (10) filled with heavy gas, in which a pack, consisting of a first glass pane (13), a second glass pane (11) and a spacer (14) placed on the second glass pane (11), is arranged standing essentially vertically between plates (1, 2), there being between the spacer (14) and the first glass pane (13), at least in the region of the lower edge of the pack consisting of the glass panes (11, 13) and the spacer (14), a gap-shaped access (60) to the space between the glass panes (11, 13) of the pack; in which, beside the pack consisting of the glass panes (11, 13) and the spacer (14), sealing devices (30, 31), aligned essentially perpendicular, are provided; in which heavy gas is led from a channel (122), arranged underneath the glass panes (11, 13), into the space between the glass panes (11, 13); and in which, once the space between the glass panes (11, 13) has been filled with heavy gas (40), the one glass pane (13) is laid on to the spacer positioned on the other glass pane (11),
   characterised in that
   the lower horizontal edge of the pack consisting of the glass panes (11,13) and the spacer (14) is sealed by a seal (9), and in that heavy gas is introduced in a plurality of places, via the sealed lower edge of the pack, consisting of the glass panes (11, 13) and the spacer (14), through apertures (124) lying exclusively opposite the spacer (14) and via which the space between the glass panes (11, 13) is connected with the channel (122).
2. Method according to claim 1,
   characterised in that the pack consisting of the glass panes (11, 13), and the spacer (14) is sealed at its lower horizontal edge by a conveying device configured as a belt conveyor (9), and the heavy gas is led in through the belt conveyor (9).
3. Method according to claim 1 or 2,
   characterised in that
   the glass panes (11, 13) are moved into the immediate vicinity of the one sealing device (30), and in that the other sealing device (31) is then moved on to the glass panes (11, 13).
4. Method according to one of claims 1 to 3,
   characterised in that
   the first glass pane (13) is conveyed as far as immediately in front of the one seal (30), in that this glass pane (13) is removed perpendicular to its surface extension out of the conveying plane, in that a second glass pane (11), with a spacer (14) placed on it, is conveyed to a position covering the first glass pane (13), and in that the first glass pane (13) is then moved up to just in front of the spacer (14) on the second glass pane (11).
5. Method according to one of claims 1 to 3;
   characterised in that
   a pack, consisting of two glass panes (11, 13) and the spacer (14), on which the first glass pane lies at the top against the spacer (14), and at the bottom has a distance (gap 60) from the spacer (14), is conveyed into the space (8) between the plates (1, 2).
6. Device for assembling insulating glass panes (10) filled with heavy gas, having two essentially vertical plates (1, 2) arranged on both sides of the glass panes (11, 13) of the insulating glass pane (10), at least one of which plates (2) may be moved transversely to its plane relative to the other plate (1); having two sealing devices (30, 31) which are arranged in their effective position beside two facing edges of the glass panes (11, 13) of the insulating glass pane (10); having a conveying device (9) arranged in the region of the lower horizontal edge of the plates (1, 2); and having a channel (122), which is connected via apertures (124) with the space (8) between the plates (1, 2), as a device for leading heavy gas in via a gap (60) present on the lower edge of the insulating glass pane (10), between the one glass pane (13) and a spacer (14) placed on the other glass pane (11), a device (130) for limiting the effective length of the inner space (123) of the channel (122) to the length of the insulating glass pane (10) measured in the direction of the longitudinal extension of the channel (122) being provided,
   characterised in that
   the conveying device is a belt conveyor (9), and in that the apertures (124), via which the channel (122) is connected to the space (8) between the plates (1, 2), goes upwards through the belt conveyor (9) and are arranged exclusively opposite the spacer (14).
7. Device according to claim 6,
   characterised in that
   the device for limiting the effective length of the channel (122) is a piston (130) which may be moved in the channel (122).
8. Device according to claim 7,
   characterised in that
   the piston (130) which may be moved in the channel (122) is coupled with an adjusting device via a projection (135) which protrudes through a slot (134) in the channel (122) which is sealed by a seal (136).
9. Device according to claim 8,
   characterised in that
   the seal in the region of the slot (134) of the channel (122) is a lip seal with sealing lips which overlap one another.
10. Device according to claim 8,
    characterised in that
    the piston (130) is sealed by two seals (131), and in that the seal (136) of the slot (134) of the channel (122) is deflected in the region between the seals (131) into the inner space (123) of the channel (122), and lies radially inside the projection (135).
11. Device according to claim 6,
    characterised in that
    the apertures are slot-shaped apertures.
12. Device according to one of claims 6 to 11,
    characterised in that
    the belt conveyor (9) has two continuous belts (121) especially two continuous synchronous belts, and in that the apertures (124) of the channel (122) are provided in the region of a gap between the continuous belts (121).
13. Device according to one of claims 6 to 12,
    characterised in that
    the belt conveyor (9) is arranged in the region of the fixed plate (1).
14. Device according to claim 13,
    characterised in that
    the belt conveyor (9) and the channel (122) connected thereto may be moved transversely to the fixed plate (1).

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