EP0318749A1 - Process and device to produce spacer frames - Google Patents

Process and device to produce spacer frames Download PDF

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Publication number
EP0318749A1
EP0318749A1 EP88118910A EP88118910A EP0318749A1 EP 0318749 A1 EP0318749 A1 EP 0318749A1 EP 88118910 A EP88118910 A EP 88118910A EP 88118910 A EP88118910 A EP 88118910A EP 0318749 A1 EP0318749 A1 EP 0318749A1
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EP
European Patent Office
Prior art keywords
frame
bending
profile
filling
leg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88118910A
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German (de)
French (fr)
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EP0318749B1 (en
Inventor
Franz Bayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Isolierglas und Maschinentechnik GmbH
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Bayer Isolierglas und Maschinentechnik GmbH
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Filing date
Publication date
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Priority to DE3740922A priority Critical patent/DE3740922C2/de
Priority to DE3740922 priority
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Publication of EP0318749A1 publication Critical patent/EP0318749A1/en
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Publication of EP0318749B1 publication Critical patent/EP0318749B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6341774&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0318749(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673Assembling the units
    • E06B3/67304Preparing rigid spacer members before assembly
    • E06B3/67317Filling of hollow spacer elements with absorbants; Closing off the spacers thereafter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/74Making other particular articles frames for openings, e.g. for windows, doors, handbags
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673Assembling the units
    • E06B3/67304Preparing rigid spacer members before assembly
    • E06B3/67308Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313Making spacer frames, e.g. by bending or assembling straight sections by bending
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49863Assembling or joining with prestressing of part
    • Y10T29/4987Elastic joining of parts
    • Y10T29/49872Confining elastic part in socket
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49885Assembling or joining with coating before or during assembling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49945Assembling or joining by driven force fit
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/51Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5191Assembly
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/51Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5199Work on tubes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/55Member ends joined by inserted section

Abstract

For the production of a spacer frame (2), containing a drying agent, for insulating glass panes, an initially drying agent-free hollow profile (3) is bent a number of times, but left open in the region of a last corner. At the open place, the frame leg or legs (4, 5) leading to this open place is or are filled with drying agent and then the frame (2) is finally closed. The drying agent to be filled into the frame legs (4, 5) is in this connection dosed in such a manner that the frame legs are only partially filled, one frame leg (4) being lengthened at the still open place and the other frame leg (5) being correspondingly shortened. After filling, the extension (4a), which remains drying agent-free, of the lengthened frame leg (4) is bent and its end face is connected tightly to that of the shortened frame leg (5). The device (1) has to this end a filling device (6) and immediately adjacent to this a bending device (8) and clamping devices (9 and 10) in order to be able to fill the frame in an essentially suspended manner. …<IMAGE>…

Description

  • The invention relates to a method for producing a spacer frame for insulating glass panes containing a desiccant, an initially desiccant-free hollow profile for forming the frame corners being bent several times and left open in the area of a last corner, after which one or both of the open spots are opened leading frame legs filled with desiccant and then the frame is finally closed.
  • Such a method is known from practice. In the case of quadrangular frames, the advantage of the curved corner is made usable at three corners, that is, a connecting joint of the frame legs is avoided there. In this known method, however, the last corner to be closed is closed with the aid of a corner connector, which causes considerable sealing problems and leads to a different type of corner than the others.
  • It is also known from DE-OS 32 21 986 to manufacture such spacer frames, initially the hollow profiles are filled with the desiccant and then bent. Thus, square frames can have bends at all four corners and can be closed in the course of a frame leg. In this case, however, a hollow profile filled with desiccant must be bent, which necessitates corresponding additional measures in order to prevent the profile from bursting open in the bending area, either relatively large bending radii or special bending devices being required, for example according to DE-OS 33 12 764, which but can also only be used if the hollow profile has sufficiently thick webs and is made of a relatively easily displaceable material. Thus, a comparatively expensive hollow profile must be used with such spacer frames.
  • It is therefore an object to provide a method of the type mentioned, in which the advantages of a spacer frame with bends at all corners and a connection point in the course of a frame leg, in particular the good sealability and tightness, are retained, but still thinner and cheaper hollow profiles can be used.
  • To achieve this object, the method mentioned at the outset is characterized in that the desiccant to be filled into the frame leg (s) is dosed so that the frame leg (s) are only partially filled, so that one frame leg is extended at the still open position and the other is shortened accordingly that, after filling, the desiccant-free extension of one frame leg is bent and its end face is tightly connected to that of the shortened frame leg.
  • So you can continue to bend, for example, three corners for a square frame, with no drying medium affects the bending process inside the hollow profile. This means that these bends can be made regardless of a desiccant filling. However, the last bend can also take place without taking desiccant into account, because the frame leg that has the extension to be bent is only partially filled in a metered manner, so that the bending area remains desiccant-free. Although the last bending process is carried out after filling with desiccant, the filling is dosed so that this last bending area is desiccant-free.
  • It is particularly expedient if the frame, which is still open at its connection point, is suspended with this open point upward and, if necessary, is supported with a side surface against an inclined surface and the frame legs are filled from above. It has been shown that it is sufficient if only two frame legs are filled, so that it may suffice to fill only the two frame legs that are still open. If, however, their bend transition to the two further frame legs still has a passage cross section, these frame legs can also be filled.
  • The frame legs that run to the open position can be arranged at an angle and the metered amount of desiccant can be blown in, with the filling being supported by gravity, so that the desiccant can be filled in very easily and quickly. The extended frame leg is filled to below its bending point and / or the shortened frame leg to below the engagement depth of a connector, so that both the bend and the connection of the frame parts facing each other after this last bend are not hindered by the desiccant.
  • The invention also relates to a device for producing a desiccant containing Ab stand frame for insulating glass panes made of a curved hollow profile, with a metering and filling device for desiccants and with a bending device in particular for performing the above-described method.
  • From the already mentioned DE-OS 32 21 986 a machine for producing a spacing inner frame for an insulating glass pane is known, which also has a filling and metering device for desiccants in the area of a magazine for rod-shaped hollow profiles, whereby the hollow profile rods before they are fed to the actual one Machine to be filled. The bending device is therefore only used after filling, so that only correspondingly high-quality hollow profiles are bent accordingly carefully and, if necessary, with relatively large radii or with the aid of special bending devices, for example according to DE-OS 33 12 764.
  • To cheaper or thin-walled profiles or those made of sheet steel or the like. To be able to process, the aforementioned device is characterized according to the invention in that the bending device for bending the overhang of a frame leg is provided for its connection to a correspondingly shortened neighboring leg and the filling device is directly adjacent that the bending device is a tensioning device for detecting the frame leg having the overhang to be bent adjacent to the bending point to be formed, that it has a further clamping device for grasping the shortened frame leg of a hollow profile that has already been bent several times, that the filling device has at least one outlet which opens at least one of the frame legs gripped by the clamping devices, and that the Filling device is controlled and actuated before actuating the bending device.
  • Compared to the arrangement of DE-OS 32 21 986, a filling device is now provided directly next to the bending device, whereby this bending device may only have to be used to produce the last bend. The control of the filling device is selected so that the two legs that are still open, or at least one of them, are filled with desiccant before the bending takes place.
  • It is particularly useful if the filling device or the like two filling openings. has, whose mouths correspond to the distance and the orientation of the end faces of the frame legs to be connected before the last bend of the last frame leg is produced and before it is connected to the other frame leg. The partially curved frame can thus be brought or hung in the area of the two filling openings, after which both frame legs can be filled in a metered manner up to a certain desired predetermined height, after which the last bend and the closing of the frame take place.
  • The filling device can have a filling head with filling channels of different lengths, the clamping devices holding the frame legs of the frame of the still open frame, which is preferably bent at three corners, sloping from their open end faces obliquely to a vertical plane and the filling channels in the position of use from top to bottom below, preferably oriented essentially parallel to the vertical plane, and their mouths correspond to the inclination of the frame legs to be filled by them. In practice, the partially completed frame can thus be suspended from the clamping devices mentioned, so that the two still open frame legs can be filled easily, quickly and precisely under the influence of gravity. The Spannvor directions for the frame legs to be filled to each other by 90 ° and to a vertical plane at an acute angle, preferably about 45 °, rotated. This is particularly useful for right-angled frames, because then both frame legs to be filled run downwards from their open side at approximately the same angle and can therefore be filled at about the same speed.
  • It has already been mentioned that the filling channels can have different lengths in order to take into account the special geometry of the partially curved frame with a frame leg that has a projection. It is expedient if the filling channel for the frame leg to be bent after filling - taking into account its obliquely upward protrusion before bending compared to the frame leg to be connected to it - is shorter than the filling channel for the other frame leg to be filled. Thus, a single filling head can have the two filling channels, and by delivering this filling head to the partially curved frame, both mouths of the filling channels can be brought into agreement with the still open end faces of the frame legs.
  • It is particularly expedient if the filling head with the filling channels can be pivoted away from the area of the holders for the frame and from the area of the bending device. This facilitates the delivery of the frame into its partially suspended filling position and later bending, because for these operations the filling head can be swiveled away, while it can then swivel back and touch the correctly positioned frame quickly and in the right place to carry out the filling.
  • Metering devices for metered filling can be located between a reservoir for desiccant and the filling channels the frame leg should be provided and the filling height of the frame leg is expediently less than their length and ends before the connection point or before the bend to be produced after filling, so that this bend can also be carried out on a desiccant-free area of the profile and also the joining the frame leg is not obstructed by desiccants with the aid of a connector which engages in its end faces. The metering devices can each be adjustable to the length and cross section of the frame legs to be filled.
  • Further refinements of the device according to the invention are the subject of claims 12 et seq. These claims relate on the one hand to a device for feeding profile connectors and for pressing the profile ends which are aligned and to be connected after the bending, and further measures for quickly and easily connecting these last two frame legs and to be able to carry it out as automatically as possible.
  • The claims 18 ff. Relate to special configurations of the bending device, which in this case is also primarily oriented to a thin-walled and inexpensive profile or the like or the like made of steel. to be able to bend without having to consider a desiccant filling. Claim 22 contains, for example, a measure which ensures that the webs or walls of the profile which run transversely to the later pane surface are guided well during the bending process even in the absence of a desiccant and are prevented from uncontrolled warping or deformation. The following claims 23 et seq. Serve this purpose and the most possible controlled shaping of the bend while at the same time maintaining the external distance of the side webs coming into contact with the glass panes.
  • Especially when combining one or more of the features and measures described above, there is a method and a device for producing spacer frames for insulating glass panes, which can be bent from hollow profiles from a single piece and sealed in the longitudinal region of a frame leg without the bending processes the desiccant filling would be hindered or impaired, or a desiccant filling would require appropriately dimensioned hollow profiles made of cheap and expensive materials. Rather, very inexpensive thin-walled hollow profiles can be used, but nevertheless a precise and tight bend can be achieved without the risk of damaging the profile, with the later spacing being precise in the bending areas and sufficient drying agent being able to be accommodated in the finished frame.
  • The invention is described in more detail below with its details that are essential to it, using the drawing. It shows in a schematic representation:
    • Fig. 1 is a plan view of a generally inclined working surface of a device according to the invention with two clamping devices for gripping the two converging, not yet connected legs of a frame already bent at three corners from a hollow profile, the clamping devices and in particular a bending device on one Turntable are arranged on a carriage so that the partially curved frame can be adjusted from a station for forming the three pre-bent corners to a filling device, not shown in FIG. 1,
    • 2 on an enlarged scale the clamping devices, a bending device and the filling device for filling the two still open, inclined legs of the somewhat obliquely suspended frame,
    • 3 shows a side view of a roller-shaped connector magazine with a transfer device for separating and feeding the individual connectors to the connection point for closing the two frame legs after filling and bending,
    • 4 on an even larger scale the mouth area of the filling head for the desiccant after attachment to the mouths of the two still open frame legs with release levers which trigger the tightening of the frame in the exact and correct filling position by this merging,
    • 5 is a view of the bending device located in the area of the filling head and in a schematic manner the mode of operation of this bending device, the position shown somewhat rotated relative to the actual position shown in FIGS. 1 and 2,
    • Fig. 6, the starting position and
    • 7 shows the end position of the profile of the elongated frame leg with the bend and in particular the abutment belonging to the bending device,
    • Fig. 8 shows a cross section through the bending point of a profile, on which the abutment already rests, before the delivery of a roll-shaped outer bending tool and
    • Fig. 9 the implementation of the bend while simultaneously merging the two webs of the hollow profile arranged transversely to the later glass panes.
  • A device designated overall by 1 is used to manufacture or complete the manufacture of a spacer frame 2 for insulating glass panes which is at least partially filled with desiccant and which is already bent at three corners 2a in FIGS. 1 and 2 in the area of a fourth corner but is still open and consists of a curved hollow profile 3, so that the frame legs 4 and 5, which are still open in the area of a fourth corner and accessible from the front, can be filled with desiccant 7 by means of a metering and filling device designated as 6. 2, a bending device 8 to be explained in more detail with reference to FIGS. 5 to 9, with which a protrusion 4a of the frame leg 4 according to FIG. the arrow Pf 1 in FIGS. 2 and 5 can be bent until this overhang 4a is aligned with the shortened frame leg 5, so that the two end faces can be connected and the frame 2 can be closed. Above all in Figure 2 it can be clearly seen that the bending device 8 is primarily intended for this bending of the overhang 4a of the frame leg 4 for its connection to a correspondingly shortened neighboring leg 5 and the filling device 6 is directly adjacent, so that these process steps of Filling and the subsequent bending and connecting can be done quickly and without implementing the frame 2. The bending device 8 has a tensioning device 9 for gripping the frame leg 4 having the overhang 4a to be bent, adjacent to the bending point to be formed. Another clamping device 10 is used to grasp the shortened frame leg 5 of the hollow profile 3, which has already been bent several times, or of the partially finished frame 2. The filling device 6 has at least one, in Embodiment two outlets 11, which open on the end faces of the frame legs 4 and 5 gripped by the clamping devices 9 and 10. The filling device 6 and the valves 12 belonging to it are actuated and actuated before the actuation of the bending device 8, that is to say the frame legs 4 and 5 are filled with desiccant 7 and then the overhang 4a is bent and its connection to the shortened frame leg 5, as is shown in more detail in FIGS. 5 to 9, especially with regard to bending.
  • The filling device 6 has a filling head 13 with two filling openings or channels 14, the orifices 14a of which, according to FIGS. 2 and 4, at a distance and the orientation of the end faces of the frame legs 4 and 5 to be connected before the last bend of the frame leg 4 and corresponds to its connection with the other frame leg 5 and through which the desiccant can be blown. This can be seen so clearly in Fig. 2 and 4, where the filling head 13 is arranged in the use position and its mouths are directed into the inner longitudinal cavities of the frame legs 4 and 5, so that the desiccant 7 can be filled directly.
    It is clear that the filling head 13 has filling channels 14 of different lengths in order to take into account the geometry and arrangement of the projection 4a on the one hand and the corresponding shortening of the frame leg 5 on the other hand.
  • The tensioners 9 u. 10 hold the frame legs 4 and 5 of the frame 2, which they have already bent at three corners 2a and are still open, from their open end faces sloping obliquely to a vertical plane, this vertical plane also being vertical to the plane of the drawing. The filling channels are also oriented in the position of use from top to bottom and parallel to the vertical plane, while the orifices 14a according to FIG. 4 are each at an angle position of the frame legs 4 and 5 run accordingly. The clamping device 9 and 10, the bending device 8 and the filling device 6 can additionally be arranged on an inclined worktop 15, as indicated in FIG. 1, the worktop 5 being obliquely from below in relation to the horizontal position shown in FIG. 1 can rise upwards to support the frame 2 during its finishing on a side surface.
  • In the embodiment, it is about the production of rectangular frames 2. Accordingly, the clamping device 9 u. 10 for the frame legs 4 and 5 to be filled in relation to one another by 90 ° and to a vertical plane in each case rotated by an acute angle, in the exemplary embodiment by 45 °. This results in an evenly quick filling of the two frame legs. But since this 1 and 2 can be of different lengths, a metering with an associated metering vessel 13a is provided for each filling channel 14.
  • It can also be seen from FIGS. 2 and 4 that the filling channel 14 for the frame leg 4 to be bent over after filling - taking into account its protruding upward protrusion 4a before bending compared to the frame leg 5 to be connected to it - is shorter than the other filling channel 14 and for the other frame leg 5 to be filled, since the end face of the frame leg 5 is deeper than that due to the overall geometry of the arrangement of the individual devices and in view of the fact that the desiccant 7 should not be able to fall out after being filled in during bending and closing Front side of the protrusion 4a.
  • In order not to hinder the bending and connecting, the filling head 13 with the filling channels 14 is gem. Fig.2 according to the double arrow Pf 2 from the area of the brackets or clamping devices 9 and 10 and pivoted away from the area of the bending device 8. The pivoted away position is also shown in Fig. 2.
  • Between a reservoir 16 for the desiccant 7 and the filling channels 14 of the filling head 13, the metering devices 13a with the valves 12 are provided for the metered filling of the frame legs 4 and 5 and in Fig.2 it is also shown that the filling height of the frame legs 4 and 5. 5 is less than its length and ends in the frame leg 5 before the connection point and in the frame leg 4 before the bend to be produced. Thus, the desiccant filling does not interfere with the production of the last bend or the connection of the two frame legs when the frame 2 is closed.
  • In Figures 2 and 3 it is also shown that adjacent to the filling head 13 in the use position and the bending device 8, a magazine 17 for feeding profile connectors 18 and also a device 19 for pressing the two profile ends aligned after the bending and colliding on the end face are provided with a profile connector 18 engaging in them. Thus, the closing process on the frame 2 can be largely automated.
  • The double arrow Pf 3 on the tensioning device 10 in FIG. 2 indicates that the tensioning device 10 for holding the shortened frame leg 5 is adjustable in its direction of extension in order to keep the two facing end faces at a distance or for the insertion of the profile connector 18 bring and then move again after inserting the profile connector 18 and bring to a stop. Thus, the tensioning device 10 has a double function in that it has the frame leg 5 on the one hand detected and fixed and thus contributes to hanging the frame 2 for filling and bending, and by causing the two ends of the profile to be joined together.
  • 3, a transfer device 20 is provided on the magazine 17 for the profile connectors 18 for feeding and separating the connectors 18 to the connection point. An actuated by a cylinder 21 arm 22 each detects a single profile connector 18, according to which it. the arrow Pf 4 is pivoted into the area of the connection point and the pressing device 19. The profile connectors 18 can thus be conveyed mechanically from the magazine 17, which is located somewhat lower, to the connection point.
  • When viewing FIGS. 3 and 2 at the same time, it can be seen that the connector magazine 17 is drum-shaped and has a band 23 with individual connectors 18 adhering to it, and according to FIG. the progress of this connector band 23 when removing the individual connector 18 acc. the arrow Pf 5 in Fig. 3 is rotatable. The connector magazine 17 has acc. Fig.2 several juxtaposed coils or winding stations with bands 23 with connectors 18, for example for connectors 18 of different dimensions. In this case, this magazine 17 can be adjustable in the longitudinal direction of its axis of rotation in order in each case to bring a further roll and a further band 23 in accordance with the orientation of the pressing device 19.
  • In Fig. 4 it is shown that at the mouths 14 a of the filling channels 14 of the filling head 13 lever 24 or the like. Switching elements for precisely triggering the clamping jaws 10a of the clamping device 10 for fixing the frame leg 5 are provided, which can be actuated by striking the filling openings or mouths 14a on the profile end faces. Are the levers 24 from the solid lines Darge posed position by striking the end faces of the frame legs 4 u.4a in the dash-dotted position, the bracing and fixing and possibly also the filling and the sequence of the further program of finishing the frame 2 can be triggered.
  • The bending device 8, which has already been mentioned several times, is very important for this finishing of the frame 2. 2 and in particular according to FIGS. 5 to 9 below the projecting and to be bent frame leg 4, an abutment 25, around which the projecting region 4a of the frame leg 4 can be bent toward the frame leg 5, which is shorter by this projection. Provided on the outside of the profile 3 opposite the abutment 25 is a bending leg 26 and also a tool in the form of a pressure roller 27 which engages on the outside of the profile and the outside of the bend and can be moved back and forth under contact pressure.
  • The abutment 25 has a gem. Fig.2 extending into the area of the pressing device 19 continued 28, which could possibly even be used as a thrust bearing for the pressing device if it were long enough for it. Above all, this continuation 28 also serves as a counterbearing for the bending leg 26 of the bending device 8, as can be seen particularly clearly in FIG. 5, where these parts are shown in the starting position, an intermediate position and the end position after the bending.
  • At this point it should be inserted and mentioned that according to. 1 this bending device 8 with its clamping device 9 and the holding device 10 on a slide, slide 29 or the like. and at the same time are arranged on a turntable 30, the slide or slide 29 on the work table 15 and guides 29a running there can be moved according to arrow Pf 6 and in the one lower end position takes over the frame 2 bent at three corners 2a, moves according to arrow Pf 6 into the area of the filling device 6 and thereby according to. the arrow Pf 7 rotated or pivoted so that the connection point and the frame legs 4 and 5 to be connected are both directed obliquely upwards, as shown in Fig. 1 in the upper position. The bending device 8, already described in part and still to be explained in terms of its mode of action, therefore follows this adjustment movement and could even be in the lower position in FIG. 1 before the adjustment movements. the arrows Pf 6 u. Pf 7 can be used to bend the other three corners 2a. However, a further bending device, not shown in more detail, could also be provided for this, so that the next frame can be pre-bent while the frame 2 is being filled and closed.
  • With the device 1 according to the invention, a spacer frame can thus be produced in which an initially desiccant-free hollow profile 3 is bent several times to form the frame corners 2a and is left open in the area of a last corner, after which one or both of them open at the open position Place leading frame legs 4. and 5 filled with desiccant 7 and then the frame 2 is finally closed. The desiccant 7 to be filled into the frame legs 4 and 5 can be metered in such a way that the frame legs 4 and 5 are only partially filled. After filling, the desiccant-free supernatant 4a of one frame leg 4 can be bent, after which the end faces of the hollow profile which are now facing one another are tightly connected to one another and the frame is thus closed. It is advantageous that the frame 2, which is still open at its connection point, is hung up practically with this open point and is thereby given if necessary with a side surface against an inclined surface, the worktop 15, supported and thus the frame legs 4 and 5 are filled from above. The frame legs 4 and 5 are arranged obliquely due to the entire geometry and the metered amount of desiccant can be blown into them supported by gravity. The elongated frame leg 4 is filled to below its bending point and the shortened frame leg 5 to below the engagement depth of a connector 18, so that the last bend is also made at a desiccant-free area of the hollow profile 3 and also the last closing and connecting of the Frame 2 is not hindered by desiccants. Nevertheless, after completion of the frame 2, even if only two frame legs are filled, the amount of desiccant is by far sufficient.
  • The bending device 8 shown in the exemplary embodiment and already partially described above is designed so that the clear distance between the tool 27 acting on the outside of the resulting bend of the profile 3 and the abutment 25 on the inside, in contrast, according to at least during the bending process. 7 and 9 is at least temporarily less than the height of the profile side walls 32 and in this case is even approximately equal to the total thickness of the two webs or walls 31 of the hollow profile 3 which are acted upon by them and arranged parallel to them and to one another. It is precisely in this critical phase of bending that these webs or walls 31 cannot have any uncontrolled kinks, warps or the like. Carry out deformations because they are clamped and supported between tool 27 and abutment 25 and against each other.
    According to FIGS. 8 and 9, the dimension of the abutment 25 oriented transversely to the longitudinal profile of the abutment and that of the tool 27 is less than the width of the profile and also less than the inside clearance of the side walls 32 of the profile 3 clearly that the cross to the Pro fil-longitudinal extension oriented dimension of the abutment 25 and the tool 27 even by two wall thicknesses or more of the profile webs is less than the inner clearance of the side walls 32 of the profile 3, so that the cross-sectional deformation visible in Fig. 9 is possible in the bending area, where namely the two walls 31 oriented at right angles to the side walls 32 are deformed between them by abutment 25 and tool 27 being inserted somewhat between the side walls 32 until the walls 31 abut one another.
  • This is facilitated by the fact that the pressure roller 27 serving as a tool is bevelled all around on its side surfaces near its circumference, which acts as a working surface, and in that the greater width of the pressure roller 27 is approximately equal to or less than the clear internal spacing of the side walls 32 of the profile 3 and that The narrower area of the pressure roller 27 corresponds approximately in width to the width of a web area 31a on the outside of the profile 3, from which inclined web areas 31b each fall towards the side walls 32, as can be clearly seen in FIG. 8. These webs and web regions 31a and 31b which initially project outward in cross section are gem. Fig. 9 and 7 deformed inward in the area of the bend, for which sufficient material is available due to the initial shape, so that a rupture or tearing of a web is avoided.
  • The abutment 25 located on the inside of the bend is a shaped piece in the exemplary embodiment, the outer contour of which corresponds to the inner contour of the inner bend to be produced and which at least at times during the bending relative to the two inner sides or webs 31 of the frame legs which are at an angle to one another after the bending, in the direction of the same Protrudes outside of the bend and the profile, so that the inside of the bend receives an indentation, as shown in Fig. 5 and especially in Fig.7. Thus, the two walls 31 can be brought into abutment against one another without the outer wall having to be deformed too deeply into the profile, because the inner wall accommodates it.
  • The abutment 25 or the fitting serving as an abutment can be used to adapt to different profiles, web thicknesses, web shapes or the like. be interchangeable. A wide variety of frames can thus be produced and finished on the device 1.
  • So that the above-mentioned deformation of the inner wall 31 takes place gradually in the bending area, the abutment 25 can also be moved or displaced deeper into the bend during the bending process. The abutment 25 is arranged in the feed direction of the profile 3 immediately adjacent to the clamping device 9. It can be pivoted together with its continuation 28 serving as a stop during the bending process with the bending stop 26 acting on the outside of the frame leg, the profile 3 being clamped between the abutment continuation 28 and this bending stop or bending leg 26.
  • The abutment 25 can preferably protrude gradually during the bending approximately into the region of the neutral fiber of the profile 3 to be bent or can be movable or displaceable. This occurs in the exemplary embodiment in that the abutment 25 has a protrusion 33 projecting laterally and eccentrically from its extension 28 to impress it into the inside of the bend (see FIGS. 6 and 7), the dimension of which increases in the direction of its pivoting that by pivoting the continuation 28 and the abutment 25, the projection 33 increasingly enters the inside of the bending. At the same time the material of the inner web 31 from this projection 33 according to its pivoting direction. taken the arrow Pf 1 and practically pulled around the bend. The eccentricity or increasing dimension in the swivel direction is indicated by the lines L, starting from a common center point M in FIGS. 6 and 7.
  • In Figures 8 u.9 can also be seen that hold-down 34 or the contact surface 15 and a hold-down 34 or the like. Guide for the side walls 32 of the profile 3 are provided in the bending area, the distance between which can be adjusted to the width of the respective profile 3 and the subsequent clear distance between two glass panes. This also favors the processing of frames 2 of different dimensions and in particular of such frames 2 with hollow profiles of different dimensions in the device 1.
  • All of the features and construction details presented in the above description, the summary, the claims and the drawing can have significance essential to the invention both individually and in any combination with one another.

Claims (33)

1. A method for producing a drying agent (7) containing spacer frame (2) for insulating glass panes, wherein an initially drying agent-free hollow profile (3) to form the frame corners (2a) is bent several times and left open in the area of a last corner, after which one or both of the frame legs (4, 5) leading to this open position are filled with desiccant and then the frame is finally closed, characterized in that the desiccant to be filled into the frame leg (s) is dosed so that the / the frame legs are only partially filled so that one frame leg is extended at the still open position and the other is shortened accordingly, that after the filling the drying agent-free extension (4a) is bent and its end face is tightly connected to that of the shortened frame leg.
2. The method according to claim 1, characterized in that the frame (2a), which is still open at its connection point, is hung up with this open point (and, if appropriate, is supported with a side surface against an inclined surface) and the frame legs are filled from above.
3. The method according to claim 1 or 2, characterized in that the frame legs extending to the open position are arranged obliquely and the metered amount of desiccant is blown in, the filling being supported by gravity.
4. The method according to any one of claims 1 to 3, characterized in that the extended frame leg (4) are filled to below its bending point and / or the shortened frame leg (5) to below the engagement depth of a connector (18).
5. Device (1) for producing a spacer frame containing desiccant (2) for insulating glass panes from a curved hollow profile (3), with a metering and filling device (6) for desiccant and with a bending device (8) for performing the method according to one of claims 1 to 4, characterized in that the bending device (8) for bending the overhang (4a) of a frame leg (4) is provided for connecting it to a correspondingly shortened neighboring leg (5) and the filling device (6) is directly adjacent, that the bending device (8) has a clamping device (9) for detecting the frame leg (s) to be bent (4a) adjacent to the bending point to be formed, that another clamping device (10) for detecting the shortened frame leg (5) one already multiply curved hollow profile (3) is provided that the filling device (6) has at least one outlet (11) which the end of at least one of the frame legs (4, 5) gripped by the tensioning devices (9, 10) opens and that the filling device can be actuated and actuated before the bending device (8) is actuated.
6. The device according to claim 5, characterized in that the filling device has two filling openings or channels (14) or the like. has the mouths (14a) of the distance and the orientation of the end faces of the frame legs (4,5) to be connected before the production of the last bend of the last frame leg (4) and before its connection to the other frame leg.
7. Apparatus according to claim 5 or 6, characterized in that the filling device has a filling head (13) with filling channels of different lengths (14), that the clamping devices (9, 10) the frame legs (4, 5) of which they are preferably engaged Hold three corners of the still open frame (2) sloping downwards from their open end faces to a vertical plane and that the filling channels in the use position from top to bottom are preferably oriented essentially parallel to the vertical plane and their mouths of the inclination of each of corresponds to the frame legs to be filled.
8. Device according to one of claims 5 to 7, characterized in that the clamping device (9,10) for the frame legs to be filled (4,5) to each other by 90 ° and to a vertical plane by an acute angle, preferably about Are rotated 45 °.
9. Device according to one of claims 5 to 8, characterized in that the filling channel (14) for the frame leg to be bent after filling (4) - its oblique taking into account the upward protrusion before bending compared to the frame leg (5) to be connected to it - shorter than the filling channel (14) for the other frame leg (5) to be filled.
10. Device according to one of claims 5 to 9, characterized in that the filling head (13) with the filling channels (14) from the area of the holders for the frame and from the area of the bending device (8) can be pivoted away.
11. The device according to one of claims 5 to 10, characterized in that between a storage container for drying agent and the filling channels (14) metering devices for metered filling of the frame legs (4,5) are provided and the filling height of the frame legs (4,5) lower than their length and ends before the connection point or before the bend to be produced.
12. Device according to one of claims 5 to 11, characterized in that adjacent to the filling head (13) and the bending device (8), a magazine (17) for feeding profile connectors (18) and a device (19) for pressing the two after bending, profile ends which are flush with one another and collide on the end face are provided with a profile connector (18) engaging in them.
13. Device according to one of claims 5 to 12, characterized in that the clamping device (10) for holding the shortened frame leg (5) is adjustable in its direction of extension to the two mutually facing end faces for inserting the profile connector (18) at a distance to hold and move towards each other with the inserted profile connector (18).
14. Device according to one of claims 5 to 13, characterized in that on the magazine (17) for the profile connector (18) a transfer device (20) for feeding and separating the connector (18) is provided to the connection point.
15. The device according to one of claims 5 to 14, characterized gekennzeihnet that the connector magazine (17) is drum-shaped and has a band (23) with adhering individual connectors (18) and according to the progress of this connector band (23rd ) is rotatable when removing the individual connectors (18).
16. The device according to one of claims 5 to 15, characterized in that the connector magazine (17) has a plurality of coils arranged next to one another with bands (23) with connectors, in particular for connectors (18) of different dimensions, and that this magazine (17th ) is adjustable in the longitudinal direction of its axis of rotation.
17. The device according to one of claims 5 to 16, characterized in that en the mouths (14 a) of the filling head (13) lever (24) or the like. Switching elements for precisely triggering the clamping jaws for fixing the frame leg (5) for filling with desiccant are provided, which can be actuated by hitting the filling openings on the end faces of the profile.
18. Device according to one of claims 5 to 17, characterized in that the bending device has a below the projecting and to be bent frame leg (4) arranged abutment (25) around which the projecting region (4a) of the frame leg (4) to the around this overhang shorter frame leg (5) can be bent.
19. Device according to one of claims 5 to 18, characterized in that on the abutment (25) opposite the outside of the profile (3) has a bending leg (26) and / or an on the profile outside and the outside of the bend in contact with pressure - Un movable tool, preferably a pressure roller, roller (27) or the like. attacks.
20. Device according to one of claims 5 to 19, characterized in that the abutment (25) of the bending device for the latter bending process up to the area of the pressing device (19) for pressing and fixing the profile connector continuing (28) optionally as a pressure counter bearing for the pressing device.
21. Device according to one of the preceding claims, characterized in that the bending device (8) for the projecting leg and the holding device (10) for the shortened by the excess leg on a slide, slide (29) or the like. and in particular are arranged on a turntable (30), which slide (29) on a work table (15) or the like. is movable and takes over in one end position the frame (2) bent at three corners (2a), moves into the area of the filling device (6) and is preferably rotated so that the connection point and the frame legs (4, 5) to be connected both are directed obliquely upwards.
22. Device according to one of claims 5 to 21, characterized in that the clear distance of the tool (27) engaging on the outside of the resulting bend of the profile (3) and the opposite abutment (25) at least temporarily during the bending process smaller than the height of the profile pages walls (32) and that the dimension of the effective surface of the abutment (25) and / or the tool 27 oriented transversely to the longitudinal profile of the profile is less than the profile width and less than the inside clearance of the side walls (32) of the profile (3) is.
23. Device according to one of claims 5 to 22, characterized in that the clear distance between the and on the outside of the resulting bending of the profile (3) attacking tools (27) and the opposite abutment (25) at least temporarily at least during the bending process is equal to the total thickness of the two webs or walls (31) of the hollow profile (3) acted upon by them and arranged parallel to them and to one another, so that the webs (31) acted upon by abutments (25) and tool (27) at least during bending are supported against one another at their mutually facing surfaces.
24. Device according to one of claims 5 to 23, characterized in that the transverse to the longitudinal profile dimension of the abutment (25) and / or the tool (27) at least two wall thicknesses of the profile webs less than the inner clear distance of the side walls (32) of the profile.
25. Device according to one of claims 5 to 24, characterized in that the pressure roller (27) near its circumference acting as a working surface is bevelled all around on its side surfaces and that the greater width of the pressure roller (27) larger, approximately equal to or smaller than the inner Clearance of the side walls (32) of the profile (3) and that the narrower area of the pressure roller (27) corresponds in width approximately to the width of a web area (31a) on the outside of the profile (3), of which sloping web areas (31b ) fall to the side walls (32).
26. Device according to one of claims 5 to 25, characterized in that the abutment (25) located on the inside of the bend is a shaped piece, the outer contour of which corresponds to the inner contour of the inner bend to be produced and which at least at times during the bending with respect to the two inner sides of the webs (31) projecting at an angle to one another after the bending, the frame legs project in the direction of the outer side of the bend and of the profile, so that the inner side of the bend receives an indentation.
27. The device according to one of claims 5 to 26, characterized in that the abutment (25) or serving as an abutment fitting to adapt to different profiles, web thicknesses, web shapes or the like. is interchangeable.
28. The device according to one of claims 5 to 27, characterized in that the abutment (25) during the bending process, in particular controlled, is movable or displaceable deeper into the bend.
29. Device according to one of claims 5 to 28, characterized in that the abutment (25) is arranged in the feed direction immediately adjacent to the clamping device (9) for detecting the profile area located before the bend.
30. The device according to one of claims 5 to 29, characterized in that the abutment (25) with its serving as a stop continuation (28) during the bending process with the bending of the frame leg on the outside acting bending stop (26) is pivotable together, the Profile (3) between the abutment continuation (28) and this bending stop (26) is preferably clamped.
31. Device according to one of claims 5 to 30, characterized in that the abutment (25) during bending bends approximately into the region of the neutral fiber of the profile (3) to be bent or is movable or displaceable.
32. Device according to one of claims 5 to 31, characterized in that the abutment (25) has a projection (33), preferably laterally and in particular eccentrically, with respect to its extension (28) for pressing into the resulting inside of the bend, the dimension of which in Direction of its pivoting increases in the sense that by pivoting the extension (28) and the abutment (25) the projection increasingly (33) enters the inside of the bend.
33. Device according to one of claims 5 to 32, characterized in that hold-down device (34) or the contact surface (15) and a hold-down device (34) or the like. Guides for the side walls (32) of the profile (3) are provided in the bending area, the distance between which can be adjusted to the width of the profile (3) and the subsequent clear distance between two glass panes.
EP88118910A 1987-12-03 1988-11-12 Process and device to produce spacer frames Expired - Lifetime EP0318749B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE3740922A DE3740922C2 (en) 1987-12-03 1987-12-03
DE3740922 1987-12-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT88118910T AT60109T (en) 1987-12-03 1988-11-12 Method and device for producing a spacer frame.

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Publication Number Publication Date
EP0318749A1 true EP0318749A1 (en) 1989-06-07
EP0318749B1 EP0318749B1 (en) 1991-01-16

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US (1) US4912837A (en)
EP (1) EP0318749B1 (en)
AT (1) AT60109T (en)
DE (1) DE3740922C2 (en)
ES (1) ES2020322B3 (en)

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EP0318748A2 (en) * 1987-12-03 1989-06-07 Franz Xaver Bayer Isolierglasfabrik KG Apparatus for bending a hollow profile, in particular a frame of spacekeeping profiles for insulating glass panes
EP0425256A2 (en) * 1989-10-23 1991-05-02 Tools For Bending, Inc. Method and apparatus for dispensing desiccant materials into window spacer frames
EP0461100A1 (en) * 1990-06-07 1991-12-11 Peter Lisec Method and apparatus for bending hollow spacer frames for isolating glass
WO1992010635A1 (en) * 1990-12-05 1992-06-25 Skovgaard & Co. A/S A method and an apparatus for filling a closed spacer frame with a drying agent
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US5253683A (en) * 1989-10-23 1993-10-19 Tools For Bending, Inc. Method and apparatus for dispensing desiccant materials into window spacer frames
DE3942809C2 (en) * 1989-12-23 1992-09-03 Franz Xaver Bayer Isolierglasfabrik Kg, 7807 Elzach, De
DE3942808C2 (en) * 1989-12-23 1992-09-03 Franz Xaver Bayer Isolierglasfabrik Kg, 7807 Elzach, De
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DE4223730C2 (en) * 1992-07-18 1996-02-29 Bayer Isolierglasfab Kg Method and device for filling and producing a spacer frame for insulating glass panes
AT399501B (en) * 1993-03-12 1995-05-26 Lisec Peter Method for partial filling of hollow bodies with granules and device for implementing the method
IT1266114B1 (en) * 1993-08-02 1996-12-20 For El Base Di Vianello Fortun Device for filling spacer frames for double-glazing with hygroscopic material
DE4402726A1 (en) * 1994-01-29 1995-08-10 Bayer Isolierglasfab Kg Method and device for producing a spacer frame for insulating glass panes
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EP0318748A3 (en) * 1987-12-03 1990-06-13 Franz Xaver Bayer Isolierglasfabrik Kg Apparatus for bending a hollow profile, in particular a frame of spacekeeping profiles for insulating glass panes
EP0425256A2 (en) * 1989-10-23 1991-05-02 Tools For Bending, Inc. Method and apparatus for dispensing desiccant materials into window spacer frames
EP0425256A3 (en) * 1989-10-23 1992-03-04 Tools For Bending, Inc. Method and apparatus for dispensing desiccant materials into window spacer frames
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WO1992010635A1 (en) * 1990-12-05 1992-06-25 Skovgaard & Co. A/S A method and an apparatus for filling a closed spacer frame with a drying agent
WO2020070245A1 (en) 2018-10-04 2020-04-09 Lisec Austria Gmbh Method and device for producing spacer frames for insulating glass

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Publication number Publication date
DE3740922A1 (en) 1989-06-22
ES2020322B3 (en) 1991-08-01
DE3740922C2 (en) 1991-03-14
AT60109T (en) 1991-02-15
US4912837A (en) 1990-04-03
EP0318749B1 (en) 1991-01-16

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