EP2483503A1

EP2483503A1 - Method for assembling a window sash having an integrated insulating glass pane

Info

Publication number: EP2483503A1
Application number: EP10754873A
Authority: EP
Inventors: Peter Schuler; Stephan Kammerer; Uwe Bogner
Original assignee: Bystronic Lenhardt GmbH
Current assignee: Bystronic Lenhardt GmbH
Priority date: 2009-09-30
Filing date: 2010-09-11
Publication date: 2012-08-08
Anticipated expiration: 2030-09-11
Also published as: CA2774447C; JP2013506769A; PL2483503T3; CN102667043A; CA2774447A1; CN102667043B; RU2012116223A; EP2483503B1; WO2011038831A1; US20120205033A1; JP5791614B2; DE102009048641B4; US9290985B2; RU2549320C2; DE102009048641A1

Abstract

The invention relates to a method for assembling a window sash having an integrated insulating glass pane. The window sash has a frame (51) formed from plastic hollow profile sections (21), said frame having an inner face (23), an outer face (22) facing away from the inner face (23), and two flanks (24, 25) that connect the inner face (23) and the outer face (22) to each other. On the inner face (23) thereof, the frame (51) has two webs (26, 27) parallel to each other, which constitute an all-round delimitation of the window opening of the window sash and are adhesively secured to two glass panes (52, 53), which are held spaced apart by means of the two webs (26, 27).

Description

Method for assembling a sash with integrated

Insulating glass pane 0 Description 5

^u The invention proceeds from a method having the features specified in the preamble of patent claim 1. Such a method is known for the production of sliding windows from US 6,286,288 B1 and US Pat. No. 7,097,724 B2.5 These publications disclose window sashes for sliding windows and methods for their production, which are known by the name "sashlite".

In the sashlite method, a rectangular or square frame is first formed from an extruded plastic hollow profile by cutting the four limbs of the frame from the plastic Q hollow profile and welding them together at their ends to form the corners of the frame in pairs with each other by ultrasound. The frame has on its inside two parallel webs. In the space between these two webs, a pasty adhesive is injected, in which a moisture-binding material, in particular Molekularsie-5

0 be in powder form, is stored. On the outside of the two webs is circumferentially applied to all four legs of the frame, a strand of a sealant and adhesive, with which two glass sheets are glued to the two webs, which serve as a spacer for the two glass sheets. Such a sealant and adhesive is hereinafter referred to as sealant. It has the task of establishing a strong bond between the inwardly directed webs of the frame and the glass sheets and the gap between the webs and the glass sheets against the ingress of moisture and against a loss of a heavy gas, which may be introduced into the space between the glass sheets. is filled fine, seal.

The prefabricated frame is placed on a horizontal conveyor track and conveyed to a processing station, in which first the adhesive, which contains the moisture-binding material is injected at all four legs of the frame in the space between the two webs, which to the opposite leg of the Frame is open. Thereafter, a strand of the sealant is applied to the top of the two webs and glued a first glass sheet on it. Then the frame on the horizontal conveyor track is turned over, so that the web with the first glass panel adhering thereto is at the bottom and the second of the two parallel webs is at the top. Then, one strand of the sealing compound is applied to the now uppermost web and the second glass sheet is glued to this strand.

One of the two bars has a hole outside the area covered by the glass panels, which leads into the space between the glass panels. Through this hole, the gap between the two glass sheets can be vented when the two glass sheets are pressed against the webs, whereby the gap between the glass sheets is reduced. The pressing of the glass panels is z. B. in that in the region of the two webs with rollers is acted upon on the glass sheets and thereby the glass sheets are pressed against the webs, whereby the sealing compound pressed flat and the gap between the two glass sheets is sealed. As another way to press the two glass panels of a sashlite window to the two webs of the window frame, it is known through the bore, which is provided in one of the webs, air from the To suck space between the two glass panels, so that in the space creates a negative pressure, which pulls the glass panels against the webs, thereby pressing the sealant flat. When sashlite method, it is also known to put two tubes in the hole in one of the two webs of the window frame. Through one of the tubes, a heavy gas, such as argon, is blown into the space between the two glass sheets, through the other tube, air or a mixture of air and the heavy gas is sucked out of the space between the two glass sheets. As a result, the air in the space between the glass panels is partially replaced by the heavy gas, whereby the heat transfer between the two glass panels is difficult. After such gas exchange, the bore is sealed in the web of the frame. Finally, cover strips are inserted into the frame, which cover the edge of the glass panels to the outside. The sash with integrated insulating glass is completed.

The known sashlite method is largely performed manually. The disadvantage is that the personnel costs are high and quality defects are inevitable.

The present invention is based on the object to remedy this.

The method according to the invention is the subject matter of patent claim 1. Advantageous further developments of the method are the subject matter of the subclaims.

The inventive method for assembling a sash with integrated insulating glass, which has a frame formed of plastic hollow sections with an inner side, an inner side facing away from the inside and two flanks, which connect the inside and the outside together, the frame on its inside two to each other has parallel webs, which form an all-round boundary of the window opening of the window sash and are glued to two glass panels, which are held by the two webs at a distance, is carried out by Erection of the frame and the glass sheets in a vertical position or in a position slightly inclined towards the vertical,

- Machine injection of a pasty adhesive, in which a moisture-binding material is incorporated, in the space between the two webs,

- machine application of an endless strand of a sealing compound on the two opposite outer sides of the webs,

- Machine alignment and holding the two glass panels and the frame so that the two glass panels face each other congruent or almost congruent and the frame is between the two glass sheets and is aligned so that the glass sheets and the edges of the two webs are centered on each other, and

- Machine pressing the two glass panels to their facing webs. Preferably, the setting up of the frame and the glass sheets in a vertical position or in a slightly inclined to the vertical position carried out by machine.

This has significant advantages:

- Setting up the frame and the glass sheets in a vertical position or in a position slightly inclined from the vertical and performing the operations leading to an assembled window sash in such a position is a basis for a substantial rationalization of the assembly process.

- Personnel costs are saved.

- The work steps to be performed are independent of individual weaknesses and errors of the operating personnel.

- The quality of the casement is significantly increased and leads to a considerable loan extension of the life of the insulating glass pane in the casement.

Preferably, the glass sheets and the frame are placed on a horizontal conveyor and secured against falling over. Working on a horizontal conveyor is a foundation for achieving a high productivity. By horizontally conveying the glass sheets and the frame are preferably first placed in a position in which they are adjacent to each other and in which the rising edges of the glass sheets and the two webs of the frame are centered in the conveying direction, while the lower edges of the glass sheets and the frame still lie in a common plane. Only then are the glass panels raised relative to the frame and the frame lowered relative to the glass panels until the horizontal edges of the glass panels and the two webs of the frame are centered in their vertical position. In this way, the glass panels and the frame for all preparatory work and up to the first phase of the actual assembly into its bottom edge can be promoted equal in height, although the lower edge of the glass panels must lie in the finished sash above the lower edge of the frame. This measure has the advantage that it facilitates the construction of an automatically working production line and shortens the throughput times.

For centering the horizontal edges of the glass sheets and the webs of the frame to each other, the glass sheets are preferably held in particular with suckers, which act on the opposite sides of the glass sheets. Then the horizontal conveyor can be lowered with the frame standing on it and the glass panels can be correctly aligned in their vertical position to the frame for the window sash. Thereafter, the gluing of the glass panels with the frame is done immediately by gluing, so that alignment errors are no longer to be feared.

When lowering the frame is allowed to strike the upper horizontal leg of the frame with its inside preferably on an adjusting device which adjusts the position of the upper leg of the frame before pressing the glass panels to their facing webs of the frame. As a result of this measure, disadvantageous sagging of the upper leg of the frame can be compensated, in particular for large-sized window sashes. Preferably, the glass panels are conveyed by means of a first horizontal conveyor via a switch in a preparation station, which side by side has three mutually parallel conveyor tracks, which are transverse displaceable together and of which the two outer ßeren conveyor tracks for the two glass panels and of which the middle conveyor track intended for the frame of the window sash. First, the two outer conveyor tracks are brought in the preparation station in succession in the alignment of the conveyor track of the switch, so that the two glass panels are promoted on the two outer conveyor tracks of the preparation station. Preferably, the frame of the window sash is then supplied by means of a second horizontal conveyor, which is provided next to the first horizontal conveyor. A diverter is to connect the preparation station with the second horizontal conveyor after it has supplied the two glass panels to the preparation station. After that, the switch takes over the frame for a window sash and pivots back into the alignment of the horizontal conveyor of the preparation station, which brings its middle conveyor track into alignment with the conveying path of the switch by transverse displacement or brings it into alignment with the first horizontal conveyor if the switch is still in place was not swung back into the flight of the first horizontal conveyor. Then the frame is conveyed in the preparation station in the space between the two glass panels. This has the advantage that the sealing compound, which is usually applied hot to the frame and is preferably a reactive hotmelt, is brought into contact with the two glass sheets with the least possible delay, so that a perfect bonding can be achieved. From the preparation station, the two glass panels and the frame standing between them are conveyed together into an assembly station following the preparation station, in which they are centered on one another and the glass panels are pressed against the webs of the frame. The first horizontal conveyor preferably connects a washing machine for the glass panels with the switch. The glass panels can therefore be supplied from the warehouse and tailored to measure on the production line. They are first washed there, so that the best conditions exist for them to arrive cleanly in the assembly station.

The second horizontal conveyor is preferably associated with a first station, in which the pasty adhesive, in which a moisture-binding material is incorporated, is injected into the intermediate space between the two webs of the frame. The second horizontal conveyor is also assigned a station in which the endless strand of the sealing compound will be applied to the two outer sides of the webs facing away from each other. This is preferably done only after the pasty adhesive, in which a moisture-binding material is incorporated, was applied. This also helps to minimize the time from application of the hot sealant to final assembly of the sash. For the same reason, the sealant is applied simultaneously to the two webs.

The provision of two separate horizontal conveyors, which are connected by a switch with the preparation station and the assembly station, helps that the time from applying the sealant to the actual assembly is possible short. It also significantly increases throughput through the production line. If the insulating glass pane integrated in the window sash is to contain a heavy gas, this is preferably achieved by bending one of the two glass plates away from the frame before pressing against the webs of the frame, so that after the glass sheets are pressed against the webs between the curved ones At least one access to the space between the two glass panels remains open. Through this access then a heavy gas can be filled in the space between the glass panels. Thereafter, the bending of the glass sheet is reversed, whereby the gap between the two glass sheets is sealed. This procedure can be automated particularly favorably in the production line. On top of that, it has the advantage of achieving much higher levels of filling than the known Sashlite process, and lessening the risk of leakage, which can lead to heavy gas loss and moisture ingress, compared to the Sashlite process because the Sashlite gas filling process involves a separate hole in the frame, which must be sealed afterwards. Such a hole is a permanent weak point. According to such a bore is avoided. Preferably, for gas filling, the one glass sheet is bent away from the frame at two diagonally opposite corners. This is particularly favorable for a quick filling process and for a high degree of filling. Preferably, the one glass sheet is bent by means of suckers which are applied to the outside of the glass sheet. This measure combines a gentle operation with a desired fixation of the glass sheet in a predetermined position. When assembling the glass panels and the frame, the glass panels are preferably pressed against the webs of the frame by approximating two racks to which the suction cups are attached. This is a defined way by which the glass panels are moved, under good control possible. In addition, the suckers can contribute to a certain cushioning of the assembly process. Preferably, the glass panels are cushioned during assembly by plunger, which are acted upon by a compressed air cylinder and act simultaneously on both glass panels in the region of the edge of the glass sheets. In this way, the air cylinder can act as pneumatic springs, which avoids glass breakage and at the same time enables an optimal adhesive connection, in particular, when the compressed air cylinder of the stamp are applied to achieve a uniform pressing with a preselected pressure.

An embodiment of the invention will be explained below with reference to the accompanying drawings.

1 shows in plan view a first section of an assembly line for window sash with integrated insulating glass pane,

2 shows a plan view of a second section of the assembly line for window sash with integrated insulating glass pane,

3 shows the preparation station from FIG. 1 in an oblique view, FIG. 4 shows the preparation station from FIG. 3 in a side view with a viewing direction parallel to the conveying direction, FIG.

5 shows as detail the detail A of FIG. 4,

6 shows in detail the detail B of FIG. 4, FIG.

FIG. 7 shows the assembly station from FIG. 1 in an oblique view, FIG. 8 shows the assembly station in a side view parallel to the conveying direction, FIG.

9 shows the rear part of the assembly station from FIG. 8 in a front view,

Fig. 10 shows the front part of the assembly station of Figure 8 in one

View from the rear of the device as seen

FIG. 11 shows in detail an oblique view of the outlet end of the assembly station with a window frame and two glass panels arranged parallel to one another, FIG.

12 shows as detail C a section from the rear part of the assembly station,

13 shows a detail D of a detail of the front part of the assembly station,

14 shows a first section of FIG. 13,

FIG. 15 shows a second detail from FIG. 13 with a changed setting, which Figs. 16-18 show three successive phases of the assembly of the sash, shown in the region of its upper edge, and

19 shows a section of a partially assembled window wing with a bent glass sheet during the gas exchange.

Figures 1 and 2 show a schematic plan view of a production line for sash or door leaf with integrated insulating glass. For the sake of simplicity, only window sashes are spoken in this patent application. For door leaves, however, the corresponding applies. Door leaves should be included in the invention. The term "wing" is intended to include both sliding and pivotable wings.

The illustration in FIG. 2 includes the right-hand end of the illustration in FIG. The production line has a first horizontal conveyor 1 and an obliquely extending second horizontal conveyor 2, which open into a horizontally conveying switch 4, which connects to the third horizontal conveyor 3, which is arranged in the alignment of the first horizontal conveyor 1. The first horizontal conveyor 1 consists of several sections, starting with a section 5, on which the individual glass panels 52, 53 are successively abandoned, from a section passing through a machine 6 for washing and drying the glass panels, and two sections 7 and 8, which serves for the intermediate transport and, if necessary, also a jamming of the glass panels 52, 53. In addition, in section 7 it is possible to check whether the washed glass panels are actually clean. In Sections 5 to 8, the first horizontal conveyor 1 has a horizontal row of synchronously driven rollers 9, which are located in the sections 5, 7 and 8 at the bottom of a support wall 10 which by a few degrees, z. B. is inclined at 6 ° to the vertical to the rear and is preferably designed as an air cushion wall. The glass panels are supported on the rollers 9 standing and leaned against the support wall 10. In the washing and drying machine 6, the glass sheets are supported in a conventional manner by an arrangement of washing brushes and rollers. The second horizontal conveyor 2 also has several sections 1 1, 12, 13, 14 and 15, in each of which an endless conveyor belt 16 is provided with horizontally extending upper strand at the bottom of a support wall 17, which inclined at the same angle from the vertical out to the rear Conveniently, the upper strand is arranged at right angles to the support wall 10 and thus also inclined by a few degrees to the rear. The second horizontal conveyor 2 serves to convey rectangular or square frames 51 (see FIG. 1), which are formed from hollow plastic profiles. They are placed with one of their legs on the conveyor belt 16 and leaned against the support wall 17, in which for the reduction of friction, preferably with bristles, in particular with soft bristles, provided strips are inserted or glued. Just above the conveyor belt 16 is a row of free-running guide rollers 18, which are partially under the support wall 17, projecting beyond this and each have a perpendicular to the upper run of the conveyor belt 16 extending axis. At a distance from the support wall 17, a further row of support rollers 19 is preferably provided in front of this, the height of which can be adjustable and which, if necessary, serve to prevent the frame standing on the conveyor belt 16 from tipping over. In section 11 of the second horizontal conveyor 2, the frames formed from the hollow plastic profiles 21 are fed onto the horizontal conveyor 2.

The section 12 of the second horizontal conveyor 2 is associated with a system 20, which serves to inject into the space between two webs of the plastic hollow profile, from which the frame 51 is formed for the window sash, an adhesive in which a desiccant is incorporated , An example of such a plastic hollow profile is shown in cross section in FIGS. 16 to 19. The illustrated plastic hollow profile 21 has a flat outer side 22, a structured inner side 23, two flanks 24 and 25 and some hollow chambers. On the inner side 23 are two flanks 24 and 25 and mutually parallel webs 26 and 27, the intermediate space to the inside of the frame 51 is open. The webs 26, 27 are angled at their free end and thereby form a projection 28, to which the glass plates 52, 53 can strike, for which the webs 26 and 27 serve as spacers, see FIG. 18. In the space between see the webs 26 and 27, an adhesive 29 is injected through the system 20, in which a desiccant is incorporated. As the adhesive 29 is particularly suitable a polyisobutylene and as a desiccant molecular sieves. The adhesive 29 is expediently injected by means of a nozzle 30, which can be moved up and down parallel to the support wall 17 and is rotatable about an axis perpendicular to the support wall 17. For injecting the adhesive 29 into the space between the vertically extending webs 28, the nozzle 30 is moved upwards or downwards, while the frame 51 formed from the hollow profile 21 rests. In the intermediate space between the horizontal webs 26 and 27, the adhesive 29 is injected, while the frame 51 formed from the hollow profile 21 is conveyed horizontally forward or back and the nozzle 30 rests.

The section 14 of the second horizontal conveyor 2 is a system 31 for applying a strand 35 of a sealing compound on the opposite sides of the webs 26 and 27 assigned. For this purpose, there is a first nozzle 32 in front of the support wall 17 and a second nozzle 33 behind the support wall 17, from where it can reach through a downwardly extending slot 34 in the support wall 17 through this. The nozzles 32 and 33 are movable in the same way as the nozzle 30 and they are synchronously moved and actuated so that they simultaneously apply the sealing compound to the outside of the two webs 26 and 27. In Figures 16 to 18, the strand 35 is shown from the sealant.

The sections 13 and 15 of the second horizontal conveyor 2 serve for the intermediate transport of the frames. In section 13, if necessary, rungs could be used in the frames 51.

The section of the production line shown in Figure 1 begins with the switch 4, which is pivotable back and forth between the two positions shown in Figure 1. The switch 4 has a horizontal conveyor with a structure that is similar to or similar to one of the sections of the second horizontal conveyor 2 and therefore can be regarded as a pivotable continuation of the second horizontal conveyor 2. In the position in which the switch 4 is in alignment with the first horizontal conveyor 1, it can transfer the glass panels 52, 53 conveyed thereon. take and transfer to a preparation station 36. In the position in which the switch 4 is aligned with the second horizontal conveyor 2, they can take over this a frame 51 for the window sash. In order to be able to transfer the frame 51 into the preparation station 36, however, the switch 4 must first be pivoted into that position in which it aligns with the preparation station 36 and the first horizontal conveyor 1.

The preparation station 36 is shown in FIGS. 3 to 6. It has on a base frame 37, which has two rearwardly inclined rails 38, a frame-shaped frame 39, which has on its front two rearwardly inclined posts 40 which project at right angles to the rails 38 upwards. The rails 38 extend at a right angle to the conveying direction of the first and third horizontal conveyor 1 and 3. The posts 40 are inclined at the same angle to the rear as the support walls 10. At the post 40 is an arrangement of three horizontal bars 41, 42nd and 43 slidably mounted up and down, so that the beams 41, 42 and 43 can be adjusted in height. The three beams 41, 42, and 43 each carry a horizontal row of free-running support rollers 44 which are rotatable about axes which are parallel to the posts 40. In the lower region of the frame 39, a three-lane horizontal conveyor 45 is attached to this, which has a horizontal support 46 for three endless conveyor belts 47, 48 and 49, whose upper run arranged at a distance parallel to each other and inclined at the same angle to the rear as the post 40th The two outer conveyor belts 47 and 49 serve to convey glass panels 52, 53, whereas the central conveyor belt 48, which is wider than the outer conveyor belts 47 and 49, is intended to convey a frame 51 for a casement. The conveyor belts 47 to 49 are driven separately. On both sides of the conveyor belt 47 and 49 freewheeling support rollers 50 are arranged on the support. They serve to guide the lower edge of the glass panels and the frame for the window sash. Their axes are parallel to the axes of the rollers 44 attached to the beams 41, 42 and 43.

By transversely displacing the frame 39 on the rails 38 of the undercarriage 37, each of the three conveyor belts 47, 48 and 49 can be brought into alignment with the horizontal conveyor of the switch 4. In the position shown in Figure 1 can from the switch 4, a frame 51 for a window sash on the middle conveyor belt 48 are passed; the support rollers 18 of the switch 4 are aligned with the support rollers 50, which are arranged between the rear conveyor belt 49 and the central conveyor belt 48 and inclined at the same angle to the rear as the posts 40 are. To transfer a glass panel 53 to the rear conveyor belt 49, this is positioned by transverse displacement of the carrier 46 so that the arranged behind the conveyor belt 49 support rollers 50 are aligned with the support rollers 18 in the switch 4. In order to pass a glass panel 52 on the front conveyor belt 47, this is positioned by transverse displacement of the carrier 46 so that between see the front conveyor belt 47 and the middle conveyor belt 48 arranged support rollers 50 are aligned with the support rollers 18 in the switch 4.

In the preparation station 36, the frame 51 and the two glass sheets 52 and 53 are preferably positioned so that their front upstanding edges are approximately adjacent to each other and adjacent to the subsequent assembly station 54.

The assembly station 54 is shown in FIGS. 7 to 15. It has a base 55 with rails 56, the inclination of which coincides with the inclination of the rails 38 in the preparation station 36. On the base 55, a frame 57 is fixed, which is similar to the frame 39 of the preparation station 36 and how that has an arrangement of three bars 58, 59 and 60. To each of which a horizontal row of support rollers 61 are mounted, whose axes are approximately perpendicular, namely perpendicular to the rails 56 extend. The arrangement of the bars 58 to 60, like the arrangement of the bars 41 to 43 in the preparation station 36, is adjustably mounted in height to posts of the frame 57. In contrast to the displaceable frame 39 in the preparation station 36, however, the frame 57 is fixed immovably to the base 55. A three-lane horizontal conveyor 62, which is similar in structure to the three-lane horizontal conveyor 45 in the preparation station 36, is height-adjustable on the undercarriage 55.

In front of the fixed frame 57, a front frame 63 is arranged, which is displaceable on a pair of rails 56. Behind the fixed frame 57, a rear frame 64 is arranged, which also on a pair of rails 56 is displaceable. FIG. 2 shows a view of the rear frame 64. Two lateral posts 65 of the rear frame 64 have at their lower ends undercut guide parts 66, which surround the rails 56. At the post 65 a horizontal cross member 67 is attached, which by means of toothed belt 68, which are driven by a motor 69, on the post 65 up and down is displaceable. On the cross member 67 are stamp 70 mounted, which can be actuated by pressure cylinder 71, in particular by pneumatic cylinders, which are shown in Figures 7 and 8, but are not visible in Figure 9, because they are behind the traverse 67. Above each punch 70, an adjusting device 72 is provided, see Figure 16, consisting of a pneumatic cylinder 73, the piston rod 74 has a head 75 to which a parallel to the piston rod 74 guided, extendable strip 76 is attached. The adjusting device 72 serves to position the upper leg of the frame 51 and to eliminate any sagging of the upper leg of the frame 51, see Figures 16 to 18.

At a lower cross member 77 of the rear frame 64 also individually actuated plunger 70 and in addition a number of suckers 78 are attached by pressure medium cylinder. Another vacuum cleaner 78 is attached to the horizontal traverse 68. The suckers 78, like the dies 70, can be displaced individually by pressure medium cylinders 89, in particular by pneumatic cylinders. At the lower cross member 77 and at an upper cross member 79 of the rear frame 64, a parallel to the post 65 upright cross member 80 is mounted horizontally displaceable. The upright cross member 80 crosses the horizontal cross member 67 and is arranged behind it. The displacement of the upright cross member 80 takes place as in the horizontal cross member 67 by means of two toothed belts 81, which are driven by a motor 82. At the upright cross member 80 and at its parallel to the post 65 further punch 70 and 70 a are mounted, which are also actuated individually by pressure medium cylinder. Most stamps 70 are attached to the trusses 67, 77 and 80 and the post 65 each on a slider 83, which carries on a scissor lattice 84 mounted smaller punch 70a with it, whereby the distance of the associated with the pawl 84 stamp 70, 70a changes from each other. The length compensation effected by the lattice grid 84 makes it possible to optimally adjust the position of the punches 70 and 70a to the height and width of the frame. men 51. The adaptation to the height and width of the frame 51 for the sash also serves the displacement of the trusses 67 and 80th

Figure 9 further shows two suckers 85 and 86, which are larger than the suckers 78. The lower nipple 85 is located in the view of Figure 9 in the lower left corner of the traverses 67, 77, 68 and the post 65 limited Feldes and is attached to the lower beam 77. The upper sucker 86 is located in the diagonally opposite corner of this field. While the lower nipple 85 can only be moved back and forth and, moreover, maintains its position on the lower cross member 77, the upper nipple 86 can additionally follow the movements of the cross members 67 and 80 so as to maintain its position in the position of the Traverses 67 and 80 maintain certain corner of the field. With these suckers 85 and 86, a glass sheet 53, which is held by the suckers 78 in the field defined by the trusses 76, 70, 68 and the post 65, can be bent back at two diagonally opposite corners. In addition, the larger suction cups 85, 86 contribute to the fixation of the glass panels 52, 53, which has to be done before the three-track horizontal conveyor 62 can be lowered. The larger suckers 85 and 86, like the smaller suckers 78, are displaceable by pressure medium cylinders, in particular by pneumatic cylinders 89.

With the help of the larger suckers 85 and 86, access to the space between the two sheets of glass 52, 53 of the sash for the purpose of gas exchange can be temporarily kept open during assembly of a sash. During the gas exchange, air in the intermediate space of the glass panels 52 and 53 is replaced by heavy gas. The heavy gas is expediently supplied in the area of the lower corner in the vicinity of the lower teat 85 and displaces the air through the opening in the region of the diagonally opposite upper teat 86. So that the heavy gas is not discharged again through the access open from the lower teat 85 there a two-legged seal 87 is provided, which covers the gap between the frame 51 and the rear glass panel 53 in the lower corner of the frame 51 and thereby seals the access to the gap between the glass panels 52, 53. The seal 87 may, for. B. be a molded part of a sponge rubber or the like. Through the seal 87 extends a supply line 88 for the supplied heavy gas. The seal indicated by the seal 87 performed end portion of the supply line 88 is preferably a closed at the end, porous pipe section, which z. B. may consist of a sintered plastic, from which the heavy gas emerges diffusely, flows into the space between the glass sheets 52, 53 and the air displaced upwards there, so that the air through the gap caused by the upper teat 86 opening. leaves.

FIG. 10 shows a view corresponding to FIG. 9 of the front frame 63, which is arranged in front of the three-track horizontal conveyor 62 in the assembly station. This front frame 63 is substantially mirror-inverted with the rear frame 64, so that recourse may be had to the description of the rear frame 64 for the details. However, the front frame 63 does not have the larger sucker 85, not the seal 87 and also no supply line 88 for a heavy gas.

In the described production line the sashes are assembled according to the following procedure:

The two glass panels 52 and 53 required for a window sash are placed on the section 5 of the first horizontal conveyor 1. The frame 51 required for the window sash, which is prefabricated from hollow plastic profiles, is placed on the section 1 of the second horizontal conveyor 2. The glass panels 52 and 53 are successively conveyed through the washing and drying machine 6, can be checked for purity in section 7 of the first horizontal conveyor 1, reach the section 8 of the first horizontal conveyor 1, on which they can be stowed, if necessary the switch 4 or its subsequent preparation station 36 should not yet be ready to record. The switch 4 is receptive to the glass panels 52 and 53 when it is aligned with the first horizontal conveyor 1 and is empty. In this case, the two glass sheets 52 and 53 are successively conveyed to the switch 4. If the preparation station 36 is receptive, it is positioned by transverse displacement so that either the support rollers 50 arranged behind the rear conveyor belt 49 or the support rollers 50 arranged between the front conveyor belt 47 and the central conveyor belt 48 with the support rollers 18 of the switch 4th aligned. In the latter case, the first glass panel 52 is then conveyed to the front conveyor belt 47, promoted from this until shortly before the outlet end of the preparation station 36 and stopped there. Then, by transverse displacement of the frame 39, the conveyor belt intended for the second glass panel 53 is displaced with the rear conveyor belt 49 into alignment of the switch 4 and the second glass panel 53 is conveyed by the switch 4 onto the rear conveyor belt 49, which feeds it to the outlet end the preparation station 36 promotes and stops there. Subsequently, the three-track horizontal conveyor 62 is positioned so that its middle conveyor track is aligned with the wider conveyor belt 48 with the first horizontal conveyor 1.

Over time, with the passage of the two glass panels 52 and 53 through the first horizontal conveyor 1 is on the second horizontal conveyor 2 in the section 12, the adhesive mass, in which a desiccant is incorporated, in the space between the two webs 26 and 27 of the frame 51st injected. In section 13 of the second horizontal conveyor 2 there is the opportunity, if desired, to insert rungs into the frame 51. In the subsequent section 14 of the second horizontal conveyor 2, an endless strand 35 of a sealing compound is applied to the outside of the two webs 26 and 27 without interruption. In the adjoining section 15 of the second horizontal conveyor 2 of the thus prepared and coated frame 51 can be stowed until the switch 4 is free and pivoted into its aligned with the second horizontal conveyor 2 position. Subsequently, the frame 51 is conveyed to the switch 4. As soon as this has happened, the switch 4 pivots back into alignment with the first horizontal conveyor 1. If this has not been done by then, the frame 39 of the preparation station 36 is next moved transversely on the underframe 37 with the intermediate conveyor belt 48 and the rear conveyor belt 49 arranged row of support rollers 50 in the alignment of the support rollers 18 in the switch 4 brought. Once this is done, the frame 51 is conveyed to the center conveyor belt 48 and conveyed from this to the outlet end of the preparation station 36. If the subsequent assembly station 54 is receptive, the frame 51 can arrive without stopping in the assembly station 54 and simultaneously the two glass panels 52 and 53 conveyed from the preparation station 36 in the assembly station 54. Should the cooperation However, the frame 51 in the preparation station 36 is not yet ready to be picked up. The frame 51 and the glass panels 52 and 53 have then taken the position shown in Figure 1. Once the assembly station 54 is ready to receive, the frame 51 and the two glass sheets 52 and 53 are simultaneously conveyed to the assembly station 54 and moved to the vicinity of their discharge end, where they -. B. controlled by position sensors - are stopped so that the upright edges of the two glass panels 52, 53 are centered in the conveying direction on the upright edges of the two webs 26 and 27 of the frame 51. Since the upper runners of the conveyor belts 47, 48 and 49 lie in a common plane, the glass panels 52 and 53 are not yet correctly aligned in height to the height that they must occupy in the frame 51, see FIG.

In order to achieve this, the suckers 78 provided in the two frames 63 and 64 of the assembly station 54 are advanced as far as the adjacent glass panel 52 or 53 by actuation of pneumatic cylinders 89 to whose piston rod a respective suction device 78 is attached activated, so that the two glass sheets are sucked in and fixed in position. In this case, only those suckers 78 are advanced and activated, which are required for the length and height of the respective glass panels 52 and 53. The dimensions of the glass panels 52, 53 may be known from manufacturing planning and may be dictated to the control of the assembly station 54, or may be determined by position sensors provided in the assembly apparatus 54. The trusses 67 and 80 can be adjusted in this way automatically to the current dimension of the glass panels 52, 53 and the associated frame 51. The adjustment of the trusses 67 and 80 to the dimensions of the current frame 51 includes the alignment of the punches 70, 70a, for which purpose the slides 83 are displaced to a position in which the punches 70, 70a reach the edge of the glass panels 52, 53 opposite possible uniform distances. Only suckers 78, which lie in the direction of FIG. 9 in the lower left, bounded by the traverses 67, 77 and 80 and by the post 65, are activated. In addition, the larger suckers 85 and 86 are advanced and activated against the glass sheets 52 and 53. Simultaneously with the suckers 78 and the punch 70, 70a are extended from their pneumatic cylinders 71 and lie against the glass panels 52, 53, see Figure 16. In addition, the adjusting device 72 is now activated. For this purpose, the strips 76 are extended by actuating the pneumatic cylinder 73, so that they pass under the flanks 24 and 25 of the upper leg of the frame 51, see FIG. 16.

Now the three-lane balance conveyor 62 can be lowered in the assembly station 54. Thereby, the upper leg of the frame 51 is placed on the strips 76, see Figure 17, and any slack of the upper leg of the frame 51 is eliminated. The three-lane horizontal conveyor 62 is lowered until the horizontal edges of the glass panels 52 and 53 are centered on the horizontal edges of the webs 26 and 27. The strands 35 of the sealant now lie opposite the glass sheets 52, 53 near their edge.

Next, the beams 58, 59 and 60 are raised so that the support rollers 61 disengage from the glass panels 52, 53. Then, the front frame 63 and the rear frame 64 are both moved towards each other, thereby pressing the glass sheets 52 and 53 against the string 35 of sealant which is on the lands 26 and 27. The movement of the frames 63 and 64 is cushioned by the pneumatic cylinder 71 of the punch 70, 70 a, which provide for pressing the glass sheets 52, 53 on the webs 26 and 27 of the frame 51 with a predetermined pressure, see Figure 18. Thus, the Window sash assembled. The pneumatic cylinders of the punches 70, 70a and the adjusting device 72 retract their piston rods, the suckers 78, 85 and 86 are deactivated and withdrawn, the three-track horizontal conveyor 62 is restored to the original level, which coincides with the level of the horizontal conveyor in the preparation station 36 coincides, raised and the sash is conveyed out of the assembly station 54 on a discharge conveyor 90. Here, if necessary, in the frame 51 in a conventional manner nor cover strips are used, which cover the edge of the glass panels 52 and 53. If the insulating glass pane integrated into the window sash is to be filled with a heavy gas, this is done by bending the rear glass plate 53 outwards against the frame 51 by pressing the glass plate 53 against diagonally opposite corners - see Figure 19-, wherein the access, which was produced by the sucker 85, the heavy gas introduced and through the opening, which was produced by the sucker 86, air is displaced from the space between the two glass sheets 52 and 53. If a sufficiently high degree of filling of the heavy gas is achieved, the suckers 85 and 86 are deactivated, whereby the openings due to the elastic Rück- Stellvermögens the glass sheets 52 and 53 close easily and closed by the action of the pneumatically operated punch 70, 70 a. Figure 19 shows in detail the access 91 at a lower corner of the sash with the attached seal 87 and a portion of the porous supply line 88 through which the heavy gas is supplied, and between the seal 87 and the glass sheet 53 a portion of the elastomeric suction cup of the nipple 85th

reference numerals

I first horizontal conveyor

2 second horizontal conveyor

3 third horizontal conveyor

4 points

5 section

6 washing and drying machine

7 section

8 section

9 rolls

10 retaining wall

I I section of 2

12 section of 2

13 section of 2

14 section of 2

15 section of 2

16 conveyor belts

17 retaining wall

18 guide rollers

19 guide rollers

20 system for injecting an adhesive

21 plastic hollow profile

22 outside of 21

23 inside of 21

24 flank of 21

25 flank of 21

26 footbridge

27 footbridge

28 lead

29 adhesive with embedded desiccant

30 nozzle

31 Plant for applying sealant 32 nozzle

33 nozzle

34 slot

35 strand of sealing compound 36 preparation station

37 Underframe

38 rails

39 frame

40 posts

41 bars

42 bars

43 bars

44 support rollers

45 three-track horizontal conveyor 46 carriers

47 conveyor belts

48 conveyor belts

49 conveyor belts

50 support rollers

51 frames

52 rear glass panel

53 front glass panel

54 Assembly Station

55 Underframe

56 rails

57 fixed frame

58 bars

59 bars

60 bars

61 support rollers

62 three-lane horizontal conveyors

63 front frame

64 rear frame

65 posts from 63 and 64 respectively 66 guide parts

67 traverse

68 toothed belt

69 engine

70 stamps

70a stamp

71 pressure cylinder (pneumatic cylinder)

72 adjustment device

73 pneumatic cylinders

74 piston rod

75 head of 74

76 bar

77 lower crossbar

78 suckers

79 upper crossbar

80 upright traverse

81 toothed belt

82 engine

83 pushers

84 scissor lattice

85 lower teat

86 upper sucker

87 seal

88 supply line

89 pneumatic cylinders

90 outlet conveyor

91 access

Claims

claims

1. A method for assembling a window sash with an integrated insulating glass pane which has a frame (51) formed from plastic hollow profiles (21) with an inside (23), an outside (22) facing away from the inside (23) and two flanks (24, 25) ), which connect the inner side (23) and the outer side (22), wherein the frame (51) on its inner side (23) has two mutually parallel webs (26, 27) which form an all-round boundary of the window opening of the window sash and with two glass sheets (52, 53) are glued, which are held by the two webs (26, 27) at a distance by

Erecting the frame (51) and the glass sheets (52, 53) in a vertical position or in a position slightly inclined from the vertical, by machine injecting a pasty adhesive (29) in which a moisture-binding material is incorporated into the space between the two webs (26, 27),

machine application of an endless strand (35) of a sealing compound on the two opposite outer sides (22) of the webs (26, 27),

mechanically aligning and holding the two glass panels (52, 53) and the frame (51) such that the two glass panels (52, 53) are congruent or nearly congruent with each other and the frame (51) between the two glass panels (52, 53) and is aligned so that the glass sheets (52, 53) and the edges of the two webs (26, 27) are centered on each other, and

machine pressing the two glass sheets (52, 53) to the webs facing them (26, 27).

2. The method according to claim 1, characterized in that the glass sheets (52, 53) and the frame (51) are mounted on a horizontal conveyor (1, 2, 3) and secured against falling over,

that they are first brought by horizontal conveying in a position in which the glass sheets (52, 53) and the frame (51) are adjacent to each other and the upstanding edges of the glass sheets (52, 53) and the two webs (26, 27) of the frame (51) are centered in the conveying direction, while the lower edges of the glass sheets (52, 53) and the frame (51) in one common plane,

and that thereafter the glass sheets (52, 53) are raised relative to the frame (51) or the frame (51) is lowered relative to the glass sheets (52, 53) until the horizontal edges of the glass sheets (52, 53) and the two webs (52) 26, 27) of the frame (51) are centered on each other in their altitude. 3. The method according to claim 2, characterized in that for centering the horizontal edges of the glass sheets (52, 53) and the webs (26, 27) of the frame (51) on each other the glass sheets (52, 53) in particular by means of suckers ( 78, 85, 86), which act on the mutually remote sides of the glass sheets (52, 53), and that thereafter the horizontal conveyor (62) with the frame (51) standing thereon is lowered.

4. The method according to claim 3, characterized in that the upper horizontal leg of the frame (51) abuts when lowering on an adjusting device (72) which the position of the upper leg of the frame (51) before pressing the glass sheets (52, 53 ) to the webs facing them (26, 27) of the frame (51) adjusted.

5. The method according to any one of the preceding claims, characterized in that the glass sheets (52, 53) by means of a first horizontal conveyor (1) via a switch (4) in a preparation station (36) are conveyed, which side by side three parallel conveyor tracks (47 , 48, 49), which are transversely displaceable together and of which the two outer conveyor tracks (47, 49) for the two glass panels (52, 53) and the middle conveyor track (48) for the frame (51) of the window sash are determined .

in that the two outer conveyor tracks (47, 49) are first brought into alignment with the conveyor track (16) of the switch (4) in the preparation station (36) so that the two glass plates (52, 53) on the two outer conveyor tracks (36) 47, 49) of the preparation station (36) are conveyed, the frame (51) of the window sash is fed by means of a second horizontal conveyor (2) which is provided next to the first horizontal conveyor (1),

the switch (4) connects the preparation station (36) to the second horizontal conveyor (2) after it has supplied the two glass plates (52, 53) to the preparation station (36),

that the switch (4) thereafter takes over the frame (51) for a window sash and again pivots into the alignment of the horizontal conveyor (45) in the preparation station (36), which by transverse displacement their middle conveyor track (48) in the alignment of the conveyor track (16 ) brings the switch (4) or in the flight of the first horizontal conveyor (1),

in that the frame (51) in the preparation station (36) is conveyed into the intermediate space between the two glass panels (52, 53),

and in that the two glass panels (52, 53) and the frame (51) between them are conveyed together into an assembly station (54) following the preparation station (36), where they are centered on one another and the glass panels (52, 53) to the webs (26, 27) of the frame (51) are pressed.

6. The method according to claim 5, characterized in that the first weighing conveyor (1) connects a washing machine (6) for the glass panels (52, 53) with the switch (4).

7. The method according to claim 5 or 6, characterized in that the second horizontal conveyor (2) has a first station (12) in which the pasty Klebemas- se (29), in which a moisture-binding material is stored, in the space between the two webs (26, 27) of the frame (51) is injected, and subsequently a second station (14) is assigned, in which the endless strand (35) of a sealing compound on the two opposite outer sides (22) of the webs (26 , 27) is applied.

8. The method according to claim 7, characterized in that the sealing compound is applied simultaneously to the two webs (26, 27).

9. The method according to any one of the preceding claims, characterized in that one of the two glass sheets (52, 53) before pressing against the webs (26, 27) of the frame (51) is bent away from the frame (51), so that after the Pressing the glass panels (52, 53) on the webs (26, 27) between the curved glass sheet (53) and the opposite web (27) at least one access (91) to the gap between the two glass sheets (52, 53) remains open , and that through this access (91) a heavy gas is filled in the space between the glass sheets (52, 53) before the bending of the glass sheet (53) reversed, thereby sealing the gap between the two glass sheets (52, 53) becomes.

10. The method according to claim 9, characterized in that the one glass sheet (53) is bent away at two diagonally opposite corners of the frame (51).

11. The method according to claim 9 or 10, characterized in that the glass sheet is bent by means of suckers (85, 86) which are applied to the outside (22) of the glass sheet (53). 12. The method according to any one of the preceding claims, characterized in that the glass sheets (52, 53) are thereby pressed against the webs (26, 27) of the frame (51) that two frames (63, 64), to which the suckers (78, 85, 86) are mounted, approximated to each other. 13. The method according to claim 12, characterized in that the pressing of the glass sheets (52, 53) by pressure stamp (70, 70a) is cushioned, which are acted upon by compressed air cylinder (71) and in the region of the edge of the glass sheets (52, 53). simultaneously affect both glass panels (52, 53). H.Verfahren according to claim 13, characterized in that the compressed air cylinder (71) of the punch (70, 70a) are applied to achieve a uniform pressing with a preselected pressure.

15. The method according to any one of the preceding claims, characterized in that also the setting up of the frame (51) and the glass sheet (52, 53) takes place mechanically in a vertical position or in a slightly inclined position against the vertical position.