DE4307403A1 - Method and device for setting up, gas filling and pressing individual panes and / or prefabricated pane arrangements as two components in the production of insulating glass panes - Google Patents

Abstract

The panes (10,12) are arranged in a predetermined alignment position opposite one another, first of all aligned in a V-shaped position with respect to one another and are then pivoted into a parallel position. A gas-filling device (30) is fitted onto the underside of the panes. In this arrangement, there is formed between the panes (10,12) a space, whose width is set such that a gap (16) of an essentially uniform width remains, around the periphery, between the spacer frame (14) and the pane (10) located opposite this. Both on the front side and rear side, in the transporting direction, in each case one seal (52) for gas-tight termination is arranged on the side edges of the panes, whereupon a filling gas is channelled into the space between the panes (10,12) by means of the gas-filling device (30), the air being displaced out of the space through the gap section on the upper side of the pane arrangement. Thereafter, the panes (10,12) are moved towards one another, the peripheral gap (16) being closed and the panes being pressed together. <IMAGE>

Description

The invention relates to a method for setting up, Gas filling and pressing of individual panes and / or already prefabricated disc arrangements as two components the production of insulating glass panes, in which the Single disc (s) and / or the disc arrangement (s) in one predetermined orientation opposite to each other be net, being one of the individual disks and / or disks arrangements on their the other single disc / discs arrangement facing side all around with a spacer Terrahmen is provided, the single disc (s) and / or the disk arrangement (s) initially in essentially V shaped position against each other and then in a parallel position can be pivoted and at the  in gas-tight connection to the underside of the single disc (s) / disc arrangement (s) formed, not yet pressed arrangement, a gas filling device is placed. The invention further relates to a device for Carrying out the method is suitable.

To improve with double or multiple glazing Getting heat or sound insulation is becoming more common point into the space between the individual panes suitable filling gas, such as noble gas or a high molecular weight Gas, a so-called heavy gas, introduced.

The filling of the space between the panes with filling gas usually featured through openings in the spacer frame taken, also supported by pumps, such as in DE-A 30 32 825, the openings being gastight afterwards are to be closed.

To avoid using the spacer frame for gas filling must be provided with openings, according to DE-A 39 14 706th proposed to bend one of the disks in such a way that temporarily between the spacer frame and the Disc an opening gap remains through which the disc space in particular be filled with heavy gas can.

DE-A 31 39 856 describes a device for filling of insulating glass arrangements with heavy gas, such as Sulfur hexafluoride, and then pressing. By Generating a vacuum in the space between the The heavy gas is made from a single disc of the arrangement Sucked container located at the open lower end of the Arrangement. To seal the side edges are in a recess on a press plate on which the insulating  Glass arrangement is provided, longitudinal fold hoses that by applying pressure to the sealing system second press plate can be brought.

In the method according to DE-A 31 15 566 it is provided that the individual disks in the gas atmosphere with which the The space between the panes should be filled together.

EP-B 0 269 194 proposes the assembled Schei to bring benanordnung into a chamber, initially evacuated and then charged with filling gas.

Single disks are usually in a vertical position assembled because this is the positioning of the washers relieved relative to each other and also from stability green which is advantageous. Proposals for this are DE-A 20 12 597 removable.

A method of the type mentioned at the beginning and one Devices for performing the method are from DE-A 31 01 342 or EP-A 0 056 762 with the same content known. The insulating glass pane arrangement in the Press the filling gas on all sides of the press strikes, the gas also entering the space between the panes penetrates. Then the insulating glass pane arrangement pressed in the filling gas atmosphere. The inflow with Filling gas can be from top to bottom or from bottom to bottom ascending at the top. With the device can Insulated glass panes of different dimensions filled be, because the gas supply bar supplying the gas there is a large number of individual chambers, optionally with Gas can be supplied. Excess gas will aspirated. The disadvantage of this method is that a Do not fill the space between the panes with filling gas  completely successful, as there are always air components in the press stay trapped.

It is therefore the object of the invention, a method and a device for setting up, gas filling and pressing of individual panes and / or prefabricated panes arrangements as two components in the manufacture of To provide insulating glass panes with which or with which the filling of the disc space quickly and succeed with a high degree of gas filling.

This object is achieved by a method according to claim 1 or a device according to claim 6 solved. Beneficial Embodiments of the method and device are opposed stood of the back-related subclaims.

According to the invention it is provided that between the one individual disk (s) and / or the disk assembly (s) Space is formed, the width of which is set so that between the spacer frame and the opposite single disc / disc arrangement all around Gap with an essentially uniform width remains, that on the side edges of the individual pane (s) / pane arrangement voltage (s), both on the front and in the direction of transport also on the rear side, each with a seal to gastight sealing is arranged and that by the Gas filling device a filling gas in the space between the Single disc (s) / disc arrangement (s) is promoted, whereby the air through the gap section at the top from the Space between the individual pane (s) / pane arrangement (s) is displaced that the gap section at the top of the Single pane (s) / pane arrangement (s) freely with the environment communicates that the single disc (s) and / or discs arrangement (s) are moved towards each other, the  circumferential gap is closed, and the single disc (s) and / or disk arrangement (s) are pressed together. With the method according to the invention, panes can also be used extremely different side dimensions or with one Fasten bars in the space one after the other quickly, economical and with a high gas filling level with a filling gas, e.g. B. argon or sulfur hexafluoride, are filled. By the large filling opening, formed by the one below Gap arrangement, in connection with the top practical without counter pressure possibility of removing the Air, practically no swirling of the filling gas occurs of the air still in the space between the panes. Even with small spaces between the panes there is a filling possible because with the rising flow flushing used by the adjustable rate of rise of the filling gas always the un desired turbulence can be prevented. A crack width of about 2 mm has been found for most cases proven suitable. Last but not least, compared to conventional processes the flushing losses are low.

It is particularly advantageous if the desired fill level of the filling gas or the degree of gas filling in the room is determined and the gas supply is stopped when the filling level is reached. However, it is also possible to use one for the corresponding one Disk type pre-calculated volume of gas, including a security surcharge, fill in and on a Avoid checking the fill level of the fill gas.

It is also advantageous if the pressing of the Single disc (s) and / or disc arrangement (s) is made so that after the gas filling of the space between the panes them first only in their lower area with a first predetermined speed to drive each other and delayed with a second, but compared to the first  higher speed even in their upper range. By this type of pressing becomes a so-called press release tion causes, which in the side areas of the insulation glass pane possibly still existing air components be removed.

The filling is preferably carried out over the entire underside the individual pane (s) and / or pane arrangement (s) are pre-selected taken to be a substantially homogeneous, upward facing dish to generate flow.

A particularly low-vortex filling succeeds if the Gap section on the underside of the individual disc (s) and / or disk arrangement (s) in its longitudinal extent in is centered with respect to the gas filling nozzle.

For example, a disc arrangement may already have one pressed insulating glass pane or a so-called Laminated safety glass pane with at least one art layer of fabric on a sheet of glass or between two Glass panes arranged mean.

A device for setting up, gas filling and pressing Individual panes and / or already prefabricated pane arrangement as two components in the manufacture of insulation glass panes, in particular to carry out the process is suitable, comprises two movable press plates on which one single pane / pane arrangement due to negative pressure is to be held, and a gas filling device for supplying Gas into a space between the single disc (s) and / or the / the disc assembly (s), wherein the press plates in adjustable V-shaped aligned to each other are and parallel to each other with adjustable distance are alignable, and the gas filling device a nozzle that  gas-tight at the bottom of the single pane be (n) / disc arrangement (s) to be laid, includes, and is characterized in that facilities are provided those on the side edges, both on the in the direction of transport front as well as on the rear side of the single ticket be (n) / disc arrangement (s) for gas-tight locking be created.

Preferably, a gas sensor is at least the maximum The level of the gas to be filled is determined hen.

The movement of the press plates is particularly advantageous via four lifting spindles arranged in their corners, initially only the lower spindles of the two Press plates at a first predetermined speed be driven and delayed with a second, however, compared to the first higher speed, respectively the two top spindles.

The nozzle can be a linear nozzle with both sides be arranged sealing lips, wherein the sealing lips on the press plates or the discs can put.

The sealing devices advantageously have for the in Direction of transport of the individual disc (s) / disc arrangement front edge of a swiveling sealing flap, for the transport of the single disc (s) / disc rear arrangement (s) rear edges at least one flexible, sealing element that automatically adjusts to a gap width ment, for example a sealing hose. Would be conceivable it also, for the front window edges also one Sealing hose or one for the rear edges Sealing flap for gas-tight sealing of the window edges  to provide. Also, a sealing flap on the rear Side edges and a sealing hose on the front sides edges are provided.

On the sealing element for the rear edges or on one of the Sealing elements is advantageously a sliding panel provided in the nozzle for its adjustment to the length the lower edge of the individual pane (s) / pane arrangement (s) intervenes.

In the following, the invention will be exemplified with reference to attached drawings are explained in more detail. It shows

Figure 1 shows the arrangement of the press plates before the entry of individual disks.

Fig. 2 in partial images (a) to (d) the sequence of the method according to the invention;

Fig. 3 is a sectional view taken along line AA of Fig. 2 (c);

Fig. 4 is a schematic representation of the Gasfülllein direction and the sealing devices;

Fig. 5 is a sectional view illustrating the flow conditions with vertically placed press plates and attached sealing devices; and

Fig. 6 is a schematic representation of the gas flow when pressing the individual disc (s) / Scheibenan arrangement (s).

Fig. 1 shows an example of an apparatus for performing the method according to the invention. The panes, for example single panes or an already prepared pane arrangement for multiple glazing, run z. B. in pairs and in a V arrangement via a transport device 60 in the device and are adjusted both in the x and y direction by suitable devices, which are not shown here in the figure. The device has two press plates 20 , 22 , which can be pivoted independently of one another about an associated axis 28 by means of hydraulic, pneumatic or mechanical actuators 26 , which have, for example, lifting spindles. Each press plate 20 , 22 has, for. B. a hole pattern 24 , which is connected to a device for generating a vacuum, not shown in the figure. It is also possible to arrange suction cups on the pressure plates 20 , 22 for fixing the disks 10 , 12 . As soon as the disks have been adjusted, they are fixed to the pressure plates 20 , 22 by means of this negative pressure generated. The inclination of the pressure plates 20 , 22 is preferably set so that the necessary V-shaped arrangement of the disks results. The press plates 20 , 22 can still be moved independently of one another in the z direction. Below the pressure plates 20 , 22 , not recognizable here, there is a gas filling device, the construction and mode of operation of which is described in connection with FIG. 4. Above the pressure plates 20 , 22 a gas sniffer hood 40 is suspended, in which a gas sensor or a plurality of gas sensors are accommodated, with which or with which the fill level or the fill level of the fill gas can be determined.

Fig. 2 shows the procedural flow. Partial image (a) corresponds essentially to the illustration in FIG. 1 with regard to the arrangement of the press plates 20 , 22 . On the press plate 20 , one of the disks 10 is fixed, on the press plate 22 , aligned with respect to the disk 10 , a second disk 12 on which a spacer frame 14 z. B. is fixed by gluing. On its side facing the pane 10 , the spacer frame 14 is provided, for example, with an adhesive, such as a butyl adhesive. Bearing devices 28 define the pivot axis for each of the press plates 20 , 22 . The press plates 20 , 22 have an approximately identical angle of inclination, but with the opposite orientation, so that z. B. a sym metric, V-shaped arrangement of the pressure plates 20 , 22 and thus also the disks 10 , 12 results. Approximately on the symmetry axis of the press plate arrangement, a vertically movable gas sniffing hood 40 is arranged above the plates 20 , 22 , which extends in the longitudinal direction, ie in the x-direction of FIG. 1, over the press plate arrangement. At its rear end in the transport direction of the production line, a sealing hose 52 hangs as a flexible sealing element, which ends in the region of the lower edges of the press plates. For the sealing hose 52 , a lifting spindle 54 is provided so that it can be driven gas-tight on the rear side edges of the individual disc (s) / disc arrangement (s) and, if necessary, simultaneously seals the rear end of the gas filling device 30 , as will be explained in more detail later will be.

In the method step shown in FIG. 2 (b), the pressure plates 20 , 22 are placed vertically, the bearing devices 28 being moved outwards, that is to say in the positive or negative z direction according to FIG. 1. The disks 10 , 12 face each other vertically at a relatively large distance. A gas filling device 30 , which is described in more detail with reference to FIG. 4, is moved between the bearing devices 28 .

As shown in partial image (c) of FIG. 2, the press plates 20 ; 22 to move towards each other until a gap 16 of a width of about 2 mm is all around between the spacer frame 14 of the disc 12 and the disc 10 . As only indicated in the figure, the sealing tube 52 closes the gap section between the disks 10 , 12 at their rear end. Not shown is a sealing flap which seals the corresponding gap section at the front end of the disks in a gas-tight manner. The gas filling device 30 is moved to the lower edge of the panes 10 , 12 and ensures the gas-tight closure here. A possible distance between the spacer frame 14 and the outer edges, in particular the pane 12, is at most small and is filled by the sealing lips of the nozzle 30 . Overall, a gas filling chamber hermetically sealed on three sides is formed between the individual disks / disk arrangements. If gas, especially heavy gas, is now introduced into the gas filling chamber, the air initially located in the gas filling chamber is preferably driven upwards. Since the gas filling chamber formed communicates with the surroundings in the upper region, the air can escape, with little or no turbulence occurring with the filling gas if its flow rate is set sufficiently low.

Sub-picture (d) of Fig. 2 shows a preferred Verpreßvor process that takes place after filling with the selected th filling gas is finished. By means of the hydraulic, pneumatic or mechanical actuators 26 , the press plates 20 , 22 are moved, preferably via four lifting spindles arranged in their corners (not shown), initially only the lower spindles of the two press plates being driven at a first predetermined speed are and delayed at a second, but compared to the first higher speed, the two upper spindles until the disc 10 comes in close contact with the spacer frame 14 , whereby the fixed connection, for. B. the adhesive bond is made and at the same time the air components are expelled from the side areas of the Scheibenanord. The pressing can take place as long as the gas filling chamber is still set up, but also when the gas filling device 30 has been lowered and / or the sealing devices 50 , 52 have been removed.

Fig. 3 shows a sectional view along the line AA from partial image (c) of FIG. 2 in a schematic enlargement. The rear side edges of the panes 10 , 12 are sealed gas-tight by the sealing hose 52 by applying compressed air so that, depending on the clear width between the edges of the panes 10 , 12 , its extent can be adjusted. The tube is preferably provided with a metal core in the middle, possibly continuously, which enables easy centering when inflating. At the front edge region of the disks 10 , 12 in the direction of transport, a sealing flap 50 extending over the length of the side edges is provided, which can be pivoted about an axis 56 , which is arranged in the immediate vicinity of the press plate 20 . The sealing flap 50 is dimensioned so that it comes to rest between the front edges of the disks 10 , 12 . This means that the panes are hermetically sealed in the side areas or side edge areas.

Fig. 4 shows in a schematic manner, in an exploded view, the position of the gas filling device 30 and the sealing devices 50 , 52 with respect to the edges of the disks 10 . The parallel press plates 20 , 22 are spaced so that ben between the disks, which are not shown here, or between one of the disks ben and the spacer frame 14 circumferentially a gap defi ned width is set up. A line-shaped nozzle 30 , which has an approximately U-shaped cross section, is dimensioned such that its length corresponds at least to the maximum possible size of an insulating glass pane. On both sides of the U-shaped nozzle, a sealing lip 32 , 34 is attached, which extends laterally from the nozzle 30 . The nozzle 30 is fed from a supply system, not shown, via a pump with the filling gas. If the space between the disks is to be filled, the nozzle 30 moves against the underside of the disk arrangement, being centered relative to the gap. This is expediently done by setting up the nozzle 30 , although it is also conceivable to design the nozzle to be stationary and to move the disc arrangement over the nozzle. The sealing tube 52 for the rear end of the disc arrangement has at its unte ren end an aperture 58 which lies in the nozzle 30 and limits this in its effective length. Inflowing filling gas is thus deflected at the diaphragm 58 or at the sealing hose 52 . The front side edges of the disk benanordnung can be closed by the sealing flap 50 , which is not shown here in its working position, but offset in an exploded view. When the sealing flap 50 is closed , as shown in FIG. 3, the sealing lips 32 , 34 rest on their underside. The nozzle 30 with the sealing lips 32 , 34 , sealing flap 50 and sealing hose 52 with orifice 58 thus form, together with the pane arrangement, a gas filling chamber, the gas filling chamber - and thus also the space between the panes - communicating with the environment via the open top, but otherwise is closed gas-tight. The pump of the supply system conveys filling gas into the nozzle 30 at a low flow rate. Due to the slight overpressure under which the filling gas acts due to the action of the pump, the filling gas level in the gas filling chamber rises, whereby the displaced air escapes into the environment through the open top. Since there is practically no swirling of the filling gas with the air during this rising purging, it is possible to work with a minimal amount of filling gas in order to obtain a high degree of filling gas in the intermediate space.

Fig. 5 shows a sectional view of the space between the panes / the gas filling chamber, from which the flow conditions become clear. The filling gas rises from the nozzle 30 through the gap 16 into the space between the panes. The fill level, ie the maximum fill level, can be detected by the gas sensors in the gas sniffer hood, whereupon the supply system is switched off.

By pressing with press ventilation in the manner described, a complete ventilation of the edge regions of the panes takes place, as indicated schematically in FIG. 6, so that it can be assumed that there is a very high degree of gas filling in the space between the panes.

The in the above description, in the drawing as well features of the invention disclosed in the claims both individually and in any combination for the Realization of the invention may be essential.

Reference list

10 disc
12 disc
14 spacer frame
16 gap
20 press plate
22 press plate
24 lace patterns
26 hydraulic / pneumatic actuator
28 swivel axis / bearing device
30 nozzle
32 sealing lip
34 sealing lip
40 gas sniffer hood
50 sealing flap
52 sealing hose
54 lifting spindle
56 swivel axis
58 aperture
60 transport device

Claims (12)

1. A method for setting up, gas filling and pressing of individual panes and / or prefabricated pane arrangements as two components in the production of insulating glass panes, in which the individual pane (s) and / or the pane arrangement (s) are arranged opposite one another in a predetermined orientation , wherein one of the individual disks and / or disk assemblies on its side facing the other single disk / disk assembly is provided all round with a spacer frame, the individual disk (s) and / or the disk assembly (s) initially being aligned in a substantially V-shaped position and are then pivoted into a parallel position and a gas filling device is placed in the gas-tight connection to the underside of the not yet compressed arrangement formed from the individual disc (s) / disc arrangement (s), characterized in that between the individual disc (s) and / or the disc arrangement (s) has a rough m is formed, the width of which is set such that a gap with an essentially uniform width remains circumferentially between the spacer frame and the individual pane / pane arrangement opposite this, that on the side edges of the individual pane (s) / pane arrangement (s), both on the front and rear in the direction of transport, a seal for gas-tight sealing is angeord net and that a filling gas is conveyed into the space between the individual pane (s) / pane arrangement (s) by the gas filling device, the air through the gap section at the top of the individual disc (s) / disc arrangement (s) is displaced from the room, that the gap section at the top of the individual disc (s) / disc arrangement (s) communicates freely with the environment, that the individual disc (s) and / or Disk arrangement (s) are moved towards each other, the circumferential gap being closed, and the individual disk (s) and / or Sch disk arrangement (s) are pressed together. 2. The method according to claim 1, characterized in net that the desired filling level of the filling gas or the Gas filling level is determined in the room and when the Level or the degree of gas filling the gas supply is stopped. 3. The method according to claim 1 or 2, characterized characterized in that the pressing of the single pane (s) and / or disc arrangement (s) is such that the discs  after gas filling the space between them initially only in its lower area with a first predetermined Speed towards each other and delayed with a second, but higher speed than the first also in their upper range. 4. The method according to any one of claims 1 to 3, characterized in that the filling with filling gas over the entire underside of the single pane (s) and / or Disc arrangement (s) is made. 5. The method according to any one of claims 1 to 4, characterized in that the gap section on the Bottom of the single pane (s) and / or pane arrangement length (s) in relation to the nozzle is centered for gas filling. 6. Device for setting up, gas filling and pressing of individual panes and / or already prefabricated pane arrangements as two components in the production of insulating glass panes, with two movable press plates ( 20 , 22 ), each with a single pane / pane arrangement ( 10 , 12 ) is to be maintained by negative pressure, and with a gas filling device ( 30 ) for supplying gas into a space between the individual disc (s) and / or the disc arrangement (s) ( 10 , 12 ), the pressing plates ( 20 , 22 ) are adjustable in a substantially V-shape to one another and can be aligned parallel to one another with an adjustable distance, the gas filling device being a nozzle ( 30 ) which is gas-tight to be placed on the underside of the individual pane (s) / pane arrangement (s) is characterized, characterized in that means ( 50 , 52 ) are provided which on the side edges, both on the front in the transport direction and on the rear n side, the individual pane (s) / pane arrangement (s) ( 10 , 12 ) can be applied for gas-tight sealing. 7. The device according to claim 6, characterized in that a gas sensor ( 40 ) which detects at least the maximum fill level of the gas to be filled is vorgese hen. 8. Apparatus according to claim 6 or 7, characterized in that the movement of the press plates ( 20 , 22 ) takes place via four lifting spindles arranged in their corners, initially only the respective lower spindles of the two press plates ( 20 , 22 ) with a first predetermined speed are driven and delayed with a second, but compared to the first higher speed, the two upper spindles. 9. Device according to one of claims 6 to 8, characterized in that the nozzle ( 30 ) is a line-shaped nozzle with sealing lips arranged on both sides ( 32 , 34 ). 10. The device according to claim 6, characterized in that the sealing devices ( 50 , 52 ) for the in the transport direction of the individual disc (s) / disc arrangement (s) ( 10 , 12 ) front edges have a pivotable sealing flap ( 50 ). 11. The device according to claim 6, characterized in that the sealing devices ( 50 , 52 ) for the in the transport direction of the individual disc (s) / disc arrangement (s) ( 10 , 12 ) rear edges at least one flexible, independently adapting to a gap width Have sealing element ( 52 ). 12. The apparatus according to claim 11, characterized in that on the sealing element ( 52 ) or on one of the sealing elements, a displaceable diaphragm ( 58 ) is provided, which in the nozzle ( 30 ) for its adaptation to the length of the lower edge of the individual disc (n ) / Disc arrangement (s) ( 10 , 12 ) engages.