EP0291499B2 - Device for fabricating spacing frames for insulating glass panes - Google Patents

Device for fabricating spacing frames for insulating glass panes Download PDF

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Publication number
EP0291499B2
EP0291499B2 EP88890117A EP88890117A EP0291499B2 EP 0291499 B2 EP0291499 B2 EP 0291499B2 EP 88890117 A EP88890117 A EP 88890117A EP 88890117 A EP88890117 A EP 88890117A EP 0291499 B2 EP0291499 B2 EP 0291499B2
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EP
European Patent Office
Prior art keywords
plate
spacer frame
conveyor
clamps
bending
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.)
Expired - Lifetime
Application number
EP88890117A
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German (de)
French (fr)
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EP0291499B1 (en
EP0291499A3 (en
EP0291499A2 (en
Inventor
Peter Lisec
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Individual
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Individual
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Priority claimed from AT118387A external-priority patent/AT390434B/en
Priority claimed from AT0118287A external-priority patent/AT391821B/en
Priority claimed from AT125687A external-priority patent/AT392027B/en
Application filed by Individual filed Critical Individual
Publication of EP0291499A2 publication Critical patent/EP0291499A2/en
Publication of EP0291499A3 publication Critical patent/EP0291499A3/en
Publication of EP0291499B1 publication Critical patent/EP0291499B1/en
Application granted granted Critical
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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
    • E06B3/67308Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313Making spacer frames, e.g. by bending or assembling straight sections by bending
    • 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
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/006Feeding elongated articles, such as tubes, bars, or profiles
    • 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
    • E06B3/67365Transporting or handling panes, spacer frames or units during assembly

Definitions

  • the invention relates to a device with the features of the introductory part of independent claim 1.
  • Such a frame bending device is known from DE-A-32 23 881.
  • the hollow profile strips which were previously cut to the appropriate length for the spacer frame of the desired size, were inserted by hand.
  • the spacer frames produced in it have to be made by hand from downstream system parts, e.g. a device for butt welding the free ends of the hollow profile bar bent to form a spacer frame.
  • the device according to the invention is characterized by the features of the characterizing part of independent claim 1.
  • the hollow profile strips can be conveyed up without any action by an operator, whereupon they are lifted from the conveying device by the gripper and inserted into the clamp and the bending heads.
  • the bending heads After closing the clamp, whereby the hollow profile bar is fixed in its longitudinal direction, the bending heads bend the hollow profile bar to a spacer frame, as is known from DE-A-32 23 881.
  • spacer frames lying on the plate of the bending device can be set in the welding device downstream of the bending device.
  • the spacer frames lifted out of the bending heads and conveyed downwards along the inclined plate of the frame bending device are moved from the transport carriage to the transfer device, even if the latter is not arranged exactly opposite the bending device, are grasped by the latter and inserted into a device downstream of the frame bending device for welding the free ones Ends of the hollow profile strips bent to form a spacer frame.
  • a device for welding the hollow profile strip to a self-contained spacer frame is, as mentioned above, known from EP-A1-0 192 921 and has an essentially vertical, slightly backward inclined support wall against which the spacer frames rest during the welding process .
  • a bending device 1 shown in FIG. 1 is supplied with hollow profile strips which are to be bent to form spacer frames, either from a roll forming device 2, in which hollow profile strips are formed from sheet metal strips, or from a magazine 3. If hollow profile strips are fed from a magazine 3, the hollow profile strips are welded together to form endless hollow profile strips in a welding device 4, which can have, for example, the construction known from EP-A1-0 192 921.
  • the spacer frames 44 produced in the bending device 1 are then transported to a further welding device 5, in which the free ends 45 of the hollow profile strip bent to form a spacer frame 44 are butt-welded to one another.
  • This welding device 5 can also have a construction as is known in principle from EP-A1-0 192 921, the welding device 5 having a supporting wall which is inclined somewhat backwards and against which the spacer frames 44 rest during the welding process.
  • a cutting device for example designed as a circular saw 6, which cuts pieces of the length required for the respective spacer frame from the supplied hollow profile strips.
  • a length measuring device 8 for example an incremental encoder, which controls the saw 6 is provided in addition to the conveyor path 7 for hollow profile strips.
  • the incremental encoder is driven by a friction wheel, on the opposite side of which a pressure roller that can be pressed onto the hollow profile strip is provided. Between the length measuring device 8 and the saw 6 there is also a drive roller for conveying the hollow profile strips.
  • the magazine 3 for hollow profile strips can be designed as a paternoster magazine. Hollow profile strips removed from the paternoster magazine are fed into the conveying path 7 for hollow profile strips by a vibration conveyor.
  • the bending device 1 has a plate 10 which is inclined to the horizontal by about 10 to 30 °. In the area of the upper edge of the plate 10, two bending heads 12 are slidably provided in the direction of the double arrows 11. In the middle between the two bending heads 12, a clamp 13 is provided which holds a hollow profile strip inserted into the bending heads 12 during the bending process.
  • a textile strip 14 is provided on both sides of each bending head 12 as a flexible cover strip for the gap in which the bending heads 12 move along the plate 10.
  • the cover strips 14 are guided over deflection rollers 15, which are provided on the one hand in the area of the clamp 13 and on the other hand in the area of the side edges of the plate 10 (cf. FIG. 8).
  • the bending heads 12 have the ejector brackets 95 (FIG. 19) known from DE-A-32 23 881 and deflectors in order to enable the ejection process of a hollow profile strip bent from a spacer frame 44 out of the bending heads 12.
  • a conveyor device 20 is provided for conveying hollow profile strips.
  • This conveyor device 20 comprises two sections, of which the section on the right in FIG. 2 has an endless conveyor member 21, whereas the section on the left in FIG. 2 is designed as a slideway 22.
  • pressure rollers 23 that can be applied to a hollow profile strip to be conveyed are provided from above.
  • the pressure rollers 23 are fastened via their axes 24 to a common shaft 25 which can be rotated about an axis running parallel to the conveying direction (double arrow 26).
  • a link 27 is connected to the shaft 25, which can be pivoted with the aid of a pressure medium motor 28 (FIG. 7).
  • a gripper 30 is provided above the plate 10, which can grip a hollow profile bar lying on the conveyor 20.
  • the hollow profile strip is inserted into the clamp 13 of the bending device 1 by the conveyor device 20 while being rotated about its longitudinal axis. Due to the rotation about its longitudinal axis, the hollow profile bar resting on one of its broad sides (preferably the side later forming the outside of the spacer frame) on the conveying member 21 or the slideway 22 is rotated so that it stands upright in the clamp 13, the clamp 13 attacks on their two broad sides.
  • the gripper 30 comprises a support arm 32 which is angled several times and parallel to a conveyor 20 arranged below it aligned axis 33 is pivotable.
  • a pressure medium motor (not shown in detail) is provided (FIG. 7).
  • the gripper 30 has two clamping jaws 34, 35, each of which has two prongs and which can be placed from below or from above against a hollow profile bar lying on the conveyor 20. To move the clamping jaws 34, 35, they are coupled to a drive motor 36.
  • FIG. 7 shows that the clamping jaws 34, 35 of the gripper 30 are arranged in their starting position above or below a hollow profile bar arranged on the conveyor 20. In the position of the gripper 30 assigned to the clamp 13, the tines of its clamping jaws 34, 35 are arranged on both sides of the jaws of the clamp 13.
  • a guide surface 37 is also provided between the conveyor path 20 and the path of movement of the bending heads 12.
  • the sections of a hollow profile bar extending on both sides of the gripper 30 slide from the conveyor device 20 into the bending heads 12 along the guide surface 37 onto the cover strips 14 when the hollow profile bar is moved.
  • the conveyor track 20 is also a length measuring device, for example an incremental encoder coupled to a deflection roller for the endless conveyor member 21 and a light barrier (not shown) between the delivery end of the conveyor member 21 and the gripper 30.
  • the pressure rollers 23 can be set somewhat obliquely to the conveying direction of the conveying device 20, so that the hollow profile strips conveyed thereon (see FIG. 4) are pulled against a guide strip 29 arranged on the plate side next to the endless conveying member 21 while they are being conveyed up.
  • the hollow profile strips are arranged opposite the jaws 34 and 35 of the gripper 30 in such a way that they are grasped by them with their front ends and a secure insertion into the clamp 13 of the bending device 1 is ensured.
  • a slot 40 is provided which is perpendicular to the direction of movement (double arrow 11) of the bending heads 12.
  • this slot 40 there is an endless chain 41 which is guided around two deflection rollers and whose upper run is arranged just below the top of the plate 10. Over half of its length, the chain 41 is equipped with upwardly facing, plate-shaped projections 42 which, when the chain 41 is in the appropriate position, project upwards through the slot 40 in the plate 10.
  • the upper horizontal leg 43 of a spacer frame 44 bent in the bending device 1 and ejected from the bending heads 12 bears against the uppermost extension 42 of the chain 41.
  • a transport carriage 50 In the area of the lower edge of the plate 10, a transport carriage 50 is provided, which is guided along the lower edge on guide rails in the direction of the double arrow 51 to a transfer device 60 and back again.
  • drive means (not shown in detail, for example, endless chain or the like) are provided.
  • Two clamps 52 are provided on the transport carriage 50, by means of which a spacer frame 44, after it has been conveyed from the chain 41 to the lower edge of the plate 10, can be fixed on the transport carriage 50.
  • Each of the clamps 52 comprises a hook-shaped clamping jaw 53 which is slidably guided on the transport carriage 50 in pivot bearings 54 so that they are pivoted on the one hand under the action of pressure medium cylinders 55 and can then be displaced on a contact surface 56 of the transport carriage 50 for clamping a spacer frame 44 ( 9 and 10).
  • the connecting joints between the piston rods of the pressure medium motors 55 and the clamps 53 are guided in slots 59 provided in guide plates, the slots 59 being approximately S-shaped.
  • the jaws 52 are further on the carriage 50 around the bearing 56, i.e. about axes perpendicular to the plate 10 under the action of a pressure medium motor 57, so that the free ends 45 of the spacer frame 44 can be pressed from both sides against a centering lamella 58, which is fixed to the transport carriage 50 (FIG. 5).
  • a spacer frame 44 After a spacer frame 44 has been fixed on the transport carriage 50, it moves to the transfer device 60, wherein the movement of the spacer frame 44 along the plate 10 can be supported by a conveyor belt 62 provided in a further slot 61 of the plate 10. As shown in FIG. 6, the conveyor belt 62 can be raised from a position sunk under the plate 10 (during the bending process) into a working position protruding above the top of the plate 10.
  • the conveyor belt 62 is preferably made as a conveyor belt with outwardly facing teeth made of rubber-elastic material.
  • the transfer device 60 (FIGS. 3 and 13 to 15) is intended to lift a spacer frame 44 from the plate 10 of the bending device 1 and to transfer it to a welding device 5 arranged next to the bending device 1, in which the free ends 45 of the spacer frame 44 are connected to one another be butt welded.
  • the transfer device 60 has a frame 63 which is pivotable about an axis 64 Am Frame 63 is a plate and starting from this two spars 65 are provided, on which the upper, horizontal leg 43 of a spacer frame 44 abuts during the implementation of the spacer frame 44.
  • the lower, horizontal leg of the spacer frame 44 is held by clamps 67 (FIG. 12) provided on a beam 66 of the transfer device 60 and, if necessary, additionally fixed by additional clamps 68 (FIG. 11) provided on the outer ends of the beam 66, if the spacer frame is long enough.
  • the inner clamps 67 on the beam 66 each comprise a clamping plate 69 which can be displaced by a pressure medium motor 70 onto an abutment 71 rigidly fastened to the beam 66.
  • the two outer clamps 68 comprise clamping jaws 72 which can be pivoted parallel to the longitudinal extent of the bar 66.
  • Pressure medium motors 73 are provided for pivoting the clamping jaws 72 of the clamps 68.
  • the beam 66 is pivotable about an axis 74 oriented parallel to its longitudinal extent and parallel to the lower edge of the plate 10, i.e. can be moved back and forth in the direction of the plate 10.
  • the bar 66 can be raised and lowered under the plate 10.
  • the pivot bearings 76 (axis 74) provided on the ends of arms 75 are fastened to links 77, which are fastened to a shaft 78.
  • pressure medium motors 79 By actuating pressure medium motors 79, the bar 66 can be raised or lowered relative to the plate 10, whereas by actuating the pressure medium motors 80 the bar 66 with its clamps 67 and 68 can be moved back and forth approximately in the plane of the plate 10.
  • the device just described for producing a spacer frame 44 for insulating glass from a hollow profile strip works as follows:
  • the frame bending device 1 is supplied via the transport device 20 with a hollow profile strip either formed by the roll forming device 2 or removed from the magazine 3 and welded together endlessly in the welding device 4.
  • the hollow profile strip is cut to length from the saw 6 to the length required for the production of the respective spacer frame 44.
  • the length is measured using the length measuring device 8, which is designed as an incremental encoder and is provided in front of the saw 6 and after the welding device 4.
  • a drive roller (not shown in the drawings) for transporting the hollow profile bar to the conveyor 20.
  • the conveyor 20 at the upper edge of the bending device 1 transports the correspondingly cut hollow profile strip so far that it is stopped exactly in the middle between the bending heads 12. This has the effect that the joint between the free ends 45 of the hollow profile strip bent to form a spacer frame 44 comes to lie exactly symmetrically with the bending heads 12 and the transport slide 50.
  • a light barrier is provided at the end of the conveyor member 21, which detects the front end of a hollow profile led up and starts the incremental encoder connected to the conveyor member 21 for length measurement, which stops the drive for the endless conveyor 21, taking into account the length of the hollow profile ledge, if the center of the hollow profile strip lies exactly between the bending heads 12, ie is aligned symmetrically to the gripper 30 or the clamp 13.
  • the pressure rollers 23 are lifted from the conveying member 21 by actuating the pressure medium motor 28 and the gripper 30 is actuated and inserts the hollow profile strip into the clamp 13 between the bending heads 12. Then the hollow profile strip is clamped upright by the clamp 13.
  • the chain 41 provided in the slot 40 of the plate 10 is positioned such that the uppermost of the lugs 42 attached to it assumes approximately the position shown in FIG. 2.
  • a spacer frame 44 is bent from the hollow profile strip. After actuating the ejectors 95 on the two bending heads 12, the spacer frame 44 assumes the position shown in FIG. its upper, horizontal leg 43 abuts the chain 41 at the uppermost extension 42.
  • the two free ends 45 of the hollow profile strip which are still to be welded, rest further down from the side on upward-facing lugs 42 of the chain 41 on both sides or are located next to the lugs 42.
  • the chain 41 is then set in motion and the spacer frame 44 conveyed downward along the plate 10 to the transport carriage 50.
  • the lower, horizontal leg of the spacer frame 44 actuates a capacitive proximity switch, not shown, which is provided in the plate 10 in the area of the carriage 50, whereupon the two clamps 52 are actuated and hold the spacer frame 44 against the clamping surfaces 49 of the transport carriage 50.
  • the two clamps 52 are brought closer to one another by actuating the pressure medium motor 57, so that the two free ends 45 of the spacer frame 44 rest against the Zen beer lamella 58. If the stroke of the two clamps 52 is greater than the distance of the free ends 45 from the centering lamella 58, the clamping jaws 53 slip on the spacer frame 44.
  • the transport carriage 50 then moves with the spacer frame 44 held by it to the transfer device 60 at the end of the plate 10.
  • the conveying member 62 is raised in the slot 61 in the plate 10 and supports the transport of the spacer frame 44 to the transfer device 60.
  • the clamp 66 and its clamps 67 and 68 have been displaced downward (rotation about the shaft 78) so that the clamps 67 and 68 do not hinder the movement of the spacer frame 44.
  • the bar 66 of the transfer device 60 is now raised and (actuation of the pressure medium motors 79) is moved toward the lower leg of the spacer frame 44 which is clamped to the slide 50 (actuation of the pressure medium motors 80).
  • the clamps 67 and, if the spacer frame is sufficiently long, also the clamps 68 are closed, so that the spacer frame 44 is fixed to the transfer device 60 with its lower, horizontal leg.
  • the clamps 52 of the transport carriage 50 are opened, the bar 66 of the transfer device 60 moves back (actuation of the pressure medium motors 80) and the carriage 50 can be moved back into its starting position shown in FIG. 2.
  • the transfer device 60 pivots about its axis 64 and sets the spacer 44 in the welding device 5 connected downstream of the bending device 1.
  • the bar 66 is moved again with the clamps 67 and 68, i.e. when the transfer device 60 is pivoted upwards, it is moved downward by the pressure medium motors 80.
  • the clamps 67 and 68 open and the bar 66 moves up again, whereupon the transfer device 60 is pivoted back into its starting position (FIG. 2).
  • the transport carriage 50 was moved back into its ready position shown in FIG. 2 in order to take over the next spacer frame 44, which has meanwhile been bent, and to transport it to the transfer device 60.
  • the transfer device 60 can be arranged at the lower edge of the plate 10 of the bending device 1 symmetrically to the gripper 30 for converting the hollow profile strips to be bent into spacer frames 44 from the conveyor device 20 into the clamp 13 and the bending heads 12.
  • no transport carriage 50 is provided and the device for further processing the spacer frames 44 (e.g. the welding device 5) is also arranged symmetrically to the gripper 30 and to the clamp 13.
  • the device according to the invention can be used as a conveying means for the spacer frames 44 lifted from the bending heads 12 and resting on the plate 10 to the lower edge of the plate 10, i.e. moved to the transport carriage 50 or directly to the transfer device 60, a carriage can be provided.
  • This carriage can be moved back and forth on guides (e.g. guide rods) oriented perpendicular to the conveying direction of the conveyor device 20 and parallel to the plane of the plate 10.
  • this carriage is equipped with clamps which grip the spacer frame 44 and release it again as soon as the spacer frame 44 is aligned with the transport carriage 50 or the transfer device 60 and has been detected by the clamping devices 52 or 67, 68 provided thereon
  • FIGS. 16 to 19 An embodiment of a bending device 1 equipped with a slide as a conveying means is shown in FIGS. 16 to 19.
  • a slot 100 is provided in the plate 10 of the bending device 1, which extends downward from the clamp 13.
  • a slide 101 and a guide device 102 are provided for the free ends 45 of the hollow profile strip bent into a spacer frame 44.
  • the free ends 45 of the spacer frame 44 are guided by the guide device 102 such that they are arranged on both sides of the centering lamella 58 of the transport carriage 50 when the lower, horizontal leg of the spacer frame 44 has been moved to the transport carriage 50.
  • the slide 101 is slidably guided in the direction of the double arrow 105 over its frame 103 on guide rails 104 extending parallel to the slot 100.
  • the guide rails 104 are fastened to a frame 106 which also carries the guide device 102.
  • the frame 106 is pivotable in the frame of the bending device 1 about an axis 107 aligned parallel to the slot 100 by a pressure medium motor 108 (arrow 109), so that the slide 101 and the guide device 102 can be lowered under the plate 10 of the bending device 1 if the Transport carriage 50 transports a spacer frame 44 to the transfer device 60.
  • the pressure medium motor 108 is supported in the frame of the bending device 1, as indicated in FIG. 17.
  • the guide device 102 consists of two extending in the longitudinal direction of the slot 100 Sheet profiles 81 and 81 '.
  • the sheet profile 81 ' has a leg 82 which is arranged with its free edge flush with the top of the plate 10 of the bending device 1 and which extends obliquely upwards away from the plate 10.
  • the sheet metal profile 81 ' is angled in a U-shape and thus forms a groove 96 for receiving one end 45 of the hollow profile strip bent to its spacer frame 44.
  • the sheet profile 81 of the guide device 102 is essentially L-shaped, its upwardly angled leg 84 adjoining the underside of the leg 82 of the sheet profile 81 '. As can be seen from FIG.
  • the upwardly angled leg 84 of the sheet profile 81 is opposite the vertical section 83 of the U-shaped bend of the sheet profile 81 'is arranged offset, so that the free ends 45 of the hollow profile bar 44 bent to form a spacer frame can overlap.
  • the leg 84 of the sheet profile 81 deviates at least in its lower portion from its parallel to the slot 100 course, so that it is at the lower end of the guide device 102 just below the vertical portion 83 of the U-shaped bend of the Sheet profile 81 'ends.
  • the upper boundary wall of the groove 96 has a downwardly deviating section 83 ′ and the leg 82 at the lower end of the sheet metal profile 81 'is bent downward at the lower end of the guide device 102 along a bending line 82' (FIGS. 16, 18).
  • the end 45 of the spacer frame 44 received in the groove 96 is steered at the end of the guide device 102 into the height of the upper side of the plate 10.
  • the free ends 45 of the spacer frame 44 are guided so that they are arranged on both sides of the centering lamella 58 of the transport carriage 50 when the spacer frame 44 has been moved downwards by the carriage 101 so that the lower, horizontal leg of the spacer frame 44 abuts the transport carriage 50 or its contact surfaces 49.
  • the centering lamella 58 of the transport carriage 50 is arranged in a U-profile 85, which ensures that the free ends 45 of the spacer frame 44 are arranged on both sides of the centering lamella 58 and not above or below it come to lie.
  • the clamps 52 of the transport carriage 50 are equipped with hold-down springs 86, the free limbs 87 of which, when the clamps 52 are pivoted downward, abut the lower horizontal limb of the spacer frame 44 in contact with the lower horizontal limb 88 of the U-profile 85 to press.
  • the clamps 52 of the transport carriage 50 are guided over guide plates on a guide rail 89 which extends parallel to the lower edge of the plate 10 of the bending device 1 and is fastened to the transport carriage 50, so that when the pressure medium cylinder 57 is actuated,
  • no swiveling movement but rather to be moved parallel to one another in order to press the free ends 45 of the hollow profile strip bent into a spacer frame 44 against the centering lamella 58.
  • Two pressure medium motors 90 are attached to the frame 103 of the slide 101, the piston rods 91 of which bear a clamping jaw 92.
  • a second clamping jaw 93 is arranged on the frame 103 of the slide 101. 19 shows, the clamping surfaces of the clamping jaws 92 and 93 are inclined to the plane of the plate 10 in order to take into account the inclined position of the frame 44 (FIG. 19).
  • a guide plate 94 is also provided on the frame 103 of the slide 101, which guides the upper, horizontal leg 43 of the spacer frame 44 securely between the clamping jaws 92 and 93 when it is lifted out of the bending heads 12 and the slide 101 by the lifting brackets 95 of the bending heads 12 is handed over. 19 shows, the upper, horizontal leg 43 of the spacer frame 44 initially rests on the piston rods 91 of the pressure medium motors 90.
  • FIGS. 16 to 19 basically works like the embodiment described with reference to FIGS. 1 to 15, but with the following differences:
  • the clamping jaw 92 is moved towards the fixed clamping jaw 93 by actuating the pressure medium motors 90 and the upper, horizontal leg 43 of the spacer frame 44 is clamped.
  • a drive for example an endless chain hoist or the like, the carriage 101 is now moved downward along the plate 10, taking the spacer frame 44 with it, until the lower, horizontal leg of the spacer frame 44 arrives at the transport carriage 50.
  • the clamps 52 of the transport carriage 50 are actuated by their pressure medium cylinders 55, the free legs 87 of the pressure springs 86 being the free ends 45 of the spacer frame 44, which are formed by the grooves 96 and 97 have been guided so that they are on both sides of the centering lamella 58, are pressed against the leg 88 of the profile 85.
  • the clamp of the carriage 101 consisting of the clamping jaws 92 and 93 is opened and the frame 106 is pivoted about its axis 107 by actuating the pressure medium motor 108 until both the guide device 102 and the Carriage 101 are arranged below the plate 10.
  • the transport carriage 50 is set in motion, the pressure medium motor 57 still being actuated during its movement in order to sew the clamps 52 together so that the free ends 45 of the spacer frame 44 abut the centering lamella 58 of the transport carriage 50 from both sides.
  • the guide device 102 and the carriage 101 are raised again and the carriage 101 is moved towards the upper edge of the plate 10 so that it takes over the next spacer frame 44 ready.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

A device (1) for fabricating spacing frames (44) by bending hollow profile strips comprises two bending heads (12) which are arranged so as to be displaceable along a plate (10). In order to insert hollow profile strips into a clamp (13) and the bending heads (12) from a means (20) for conveying hollow profile strips, a gripper (30) is provided in the plane of symmetry of the clamp (13). Provided at that edge of the plate (10) of the bending device (1) which is opposite the bending heads (12) is a transport carriage (50) which transports the hollow profile strips which are bent to form a spacing frame (44) to a transfer device (60) which raises the spacing frames (44) transported thereto from the plate (10) and passes them to a welding apparatus (5) for welding the free ends (45) of the hollow profile strip bent to form a spacing frame (44). In order to move hollow profile strips which are bent to form a spacing frame (44) along the plate (10) to the transport carriage (50), there is provided a conveying means (41, 42). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung mit den Merkmalen des einleitenden Teils des unabhängigen Anspruchs 1.The invention relates to a device with the features of the introductory part of independent claim 1.

Eine derartige Rahmenbiegevorrichtung ist aus der DE-A-32 23 881 bekannt.Such a frame bending device is known from DE-A-32 23 881.

Bei der bekannten Vorrichtung zum Biegen von Hohlprofilleisten zu Abstandhalterrahmen für Isolierglas wurden die Hohlprofilleisten, die zuvor auf die für den Abstandhalterrahmen der gewünschten Größe entsprechenden Länge zugeschnitten worden sind, von Hand aus eingelegt.In the known device for bending hollow profile strips to form spacer frames for insulating glass, the hollow profile strips, which were previously cut to the appropriate length for the spacer frame of the desired size, were inserted by hand.

Aus der Zeitschrift Glas + Rahmen 18/1986, Seiten 840 und 842 ist eine auch auf der Fachmesse "GLAS 86" zur Schau gestellte Vorrichtung zum Biegen von Hohlprofilleisten zu Abstandhalterrahmen für Isolierglas bekannt geworden. Diese bekannte Vorrichtung besitzt eine annähernd vertikale Stützwand und am unteren Rand derselben zwei Biegewerkzeuge, mit welchen die Hohlprofilleisten, die aus einem vor der Stützwand und im Abstand von dieser angeordneten Magazin mit Hilfe eines Greifersystems entnommen und in die Biegewerkzeuge eingelegt worden sind, zu Abstandhalterrahmen gebogen werden können. Für den Abtransport fertiggebogener Abstandhalterrahmen ist ein am oberen Rand der Stützwand angeordneter Hakenförderer vorgesehen.From the magazine Glas + Rahmen 18/1986, pages 840 and 842, a device for bending hollow profile strips to form spacer frames for insulating glass, also on display at the "GLAS 86" trade fair, has become known. This known device has an approximately vertical support wall and at the lower edge thereof two bending tools with which the hollow profile strips, which have been removed from a magazine arranged in front of and at a distance from the support wall with the aid of a gripper system and inserted into the bending tools, are bent into spacer frames can be. A hook conveyor arranged on the upper edge of the support wall is provided for the removal of the bent spacer frame.

Bei der aus der DE-A-32 23 881 bekannten Rahmenbiegevorrichtung mĂĽssen die in ihr hergestellten Abstandhalterrahmen von Hand aus nachgeschaltenen Anlageteilen, z.B. einer Vorrichtung zum StumpfverschweiĂźen der freien Enden der zu einem Abstandhalterrahmen gebogenen Hohlprofilleiste zugefĂĽhrt werden.In the frame bending device known from DE-A-32 23 881, the spacer frames produced in it have to be made by hand from downstream system parts, e.g. a device for butt welding the free ends of the hollow profile bar bent to form a spacer frame.

Es ist Aufgabe der Erfindung, das Einlegen der Hohlprofilleisten von Hand aus überflüssig zu machen und die aus der DE-A-32 23 881 bekannte Rahmenbiegevorrichtung in der Richtung weiter auszugestalten, daß eine weitgehend selbsttätig arbeitende Übergabe der hergestellten Abstandhalterrahmen zu einer Schweißvorrichtung, die aus der EP-A1-0 192 921 bekannt ist, möglich ist.It is an object of the invention to make the insertion of the hollow profile strips by hand unnecessary and the frame bending device known from DE-A-32 23 881 in the direction to further develop that a largely automatic transfer of the spacer frames produced to a welding device, which is known from EP-A1-0 192 921, is possible.

In Lösung dieser Aufgabe kennzeichnet sich die erfindungsgemäße Vorrichtung durch die Merkmale des kennzeichnenden Teils des unabhängigen Anspruches 1.In solving this problem, the device according to the invention is characterized by the features of the characterizing part of independent claim 1.

Über die in der Vorrichtung vorgesehene Fördereinrichtung können die Hohlprofilleisten ohne Tätigwerden einer Bedienungsperson herangefördert werden, worauf sie vom Greifer von der Fördereinrichtung abgehoben und in die Klemme und die Biegeköpfe eingelegt werden. Nach dem Schließen der Klemme, wodurch die Hohlprofilleiste in ihrer Längsrichtung fixiert ist, biegen die Biegeköpfe die Hohlprofilleiste zu einem Abstandhalterrahmen, wie dies aus der DE-A-32 23 881 bekannt ist.Via the conveying device provided in the device, the hollow profile strips can be conveyed up without any action by an operator, whereupon they are lifted from the conveying device by the gripper and inserted into the clamp and the bending heads. After closing the clamp, whereby the hollow profile bar is fixed in its longitudinal direction, the bending heads bend the hollow profile bar to a spacer frame, as is known from DE-A-32 23 881.

Mit der erfindungsgemäß vorgesehenen Übergabevorrichtung können auf der Platte der Biegevorrichtung liegende Abstandhalterrahmen in die der Biegevorrichtung nachgeschaltete Schweißvorrichtung eingestellt werden. Hiezu werden die aus den Biegeköpfen ausgehobenen und entlang der geneigten Platte der Rahmenbiegevorrichtung nach unten geförderten Abstandhalterrahmen vom Transportschlitten zur Übergabevorrichtung , auch wenn letztere der Biegevorrichtung nicht genau gegenüberliegend angeordnet ist, bewegt, von letzterer erfaßt und in eine der Rahmenbiegevorrichtung nachgeschaltete Vorrichtung zum Verschweißen der freien Enden der zu Abstandhalterrahmen gebogenen Hohlprofilleisten eingestellt. Eine Vorrichtung zum Verschweißen der Hohlprofilleiste zu einem in sich geschlossenen Abstandhalterrahmen ist, wie oben erwähnt, aus der EP-A1-0 192 921 bekannt und besitzt eine im wesentlichen senkrecht stehende, geringfügig nach hinten geneigte Stützwand, an der die Abstandhalterrahmen während des Schweißvorganges anliegen.With the transfer device provided according to the invention, spacer frames lying on the plate of the bending device can be set in the welding device downstream of the bending device. For this purpose, the spacer frames lifted out of the bending heads and conveyed downwards along the inclined plate of the frame bending device are moved from the transport carriage to the transfer device, even if the latter is not arranged exactly opposite the bending device, are grasped by the latter and inserted into a device downstream of the frame bending device for welding the free ones Ends of the hollow profile strips bent to form a spacer frame. A device for welding the hollow profile strip to a self-contained spacer frame is, as mentioned above, known from EP-A1-0 192 921 and has an essentially vertical, slightly backward inclined support wall against which the spacer frames rest during the welding process .

Weitere Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen, die vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung zum Gegenstand haben, und aus der nachstehenden Beschreibung bevorzugter Ausführungsbeispiele. Es zeigt

  • Fig. 1 schematisch und in Draufsicht eine Vorrichtung zur Herstellung eines Abstandhalterrahmens fĂĽr Isolierglas mit vor- und nachgeschalteten Anlageteilen,
  • Fig. 2 in Schrägansicht eine Biegevorrichtung,
  • Fig. 3 eine Einzelheit der Vorrichtung aus Fig. 2,
  • Fig. 4 eine Einzelheit der Fördereinrichtung,
  • Fig. 5 eine weitere Einzelheit der Vorrichtung aus Fig. 2,
  • Fig. 6 ein in der Platte der Vorrichtung aus Fig. 2 versenkbar angeordnetes Förderband,
  • Fig. 7 in Seitenansicht einen Greifer zum Umsetzen von Hohlprofilleisten von der Fördereinrichtung in die Biegeköpfe,
  • Fig. 8 die Streifen, welche die Schlitze, in welchen die Biegeköpfe angeordnet sind, abdecken,
  • Fig. 9 und 10 in Seitenansicht die Klemmen des Transportschlittens,
  • Fig. 11 eine Klemme der Ăśbergabevorrichtung,
  • Fig. 12 eine weitere Klemme der Ăśbergabevorrichtung,
  • Fig. 13 bis 15 verschiedene Arbeitsstellungen der Ăśbergabevorrichtung aus Fig. 3,
  • Fig. 16 in Draufsicht, teilweise eine andere AusfĂĽhrungsform einer Biegevorrichtung,
  • Fig. 17 einen Schnitt längs der Linie XVII-XVII in Fig. 16,
  • Fig. 18 eine andere AusfĂĽhrungsform der Klemmen am Transportschlitten und
  • Fig. 19 das Fördermittel aus Fig. 16 in Seitenansicht.
Further features and details of the invention emerge from the subclaims, the advantageous developments of have the device according to the invention, and from the following description of preferred embodiments. It shows
  • 1 schematically and in plan view a device for producing a spacer frame for insulating glass with upstream and downstream system parts,
  • 2 an oblique view of a bending device,
  • 3 shows a detail of the device from FIG. 2,
  • 4 shows a detail of the conveyor,
  • 5 shows a further detail of the device from FIG. 2,
  • 6 shows a conveyor belt arranged retractably in the plate of the device from FIG. 2,
  • Fig. 7 in side view of a gripper for moving hollow profile strips from the conveyor into the bending heads,
  • 8 the strips covering the slots in which the bending heads are arranged,
  • 9 and 10 in side view of the clamps of the transport carriage,
  • 11 a clamp of the transfer device,
  • 12 shows another terminal of the transfer device,
  • 13 to 15 different working positions of the transfer device from FIG. 3,
  • 16 is a top view, partially another embodiment of a bending device,
  • 17 shows a section along the line XVII-XVII in FIG. 16,
  • Fig. 18 shows another embodiment of the clamps on the transport carriage and
  • Fig. 19 shows the funding from Fig. 16 in side view.

Einer in Fig. 1 gezeigten Biegevorrichtung 1 werden Hohlprofilleisten, die zu Abstandhalterrahmen zu biegen sind, entweder von einer Rollformvorrichtung 2, in der aus Blechstreifen Hohlprofilleisten geformt werden, oder aus einem Magazin 3 zugefĂĽhrt. Wenn Hohlprofilleisten aus einem Magazin 3 zugefĂĽhrt werden, werden die Hohlprofilleisten in einer SchweiĂźvorrichtung 4, die beispielsweise die aus der EP-A1-0 192 921 bekannte Konstruktion besitzen kann, zu endlosen Hohlprofilleisten zusammengeschweiĂźt.A bending device 1 shown in FIG. 1 is supplied with hollow profile strips which are to be bent to form spacer frames, either from a roll forming device 2, in which hollow profile strips are formed from sheet metal strips, or from a magazine 3. If hollow profile strips are fed from a magazine 3, the hollow profile strips are welded together to form endless hollow profile strips in a welding device 4, which can have, for example, the construction known from EP-A1-0 192 921.

Die in der Biegevorrichtung 1 hergestellten Abstandhalterrahmen 44 werden dann zu einer weiteren Schweißeinrichtung 5 transportiert, in der die freien Enden 45 der zu einem Abstandhalterrahmen 44 gebogenen Hohlprofilleiste stumpf miteinander verschweißt werden. Auch diese Schweißeinrichtung 5 kann eine Konstruktion besitzen, wie sie im Prinzip aus der EP-A1-0 192 921 bekannt ist, wobei die Schweißeinrichtung 5 eine Stützwand aufweist, die etwas nach hinten geneigt ist und an der die Abstandhalterrahmen 44 während des Schweißvorganges anliegen.The spacer frames 44 produced in the bending device 1 are then transported to a further welding device 5, in which the free ends 45 of the hollow profile strip bent to form a spacer frame 44 are butt-welded to one another. This welding device 5 can also have a construction as is known in principle from EP-A1-0 192 921, the welding device 5 having a supporting wall which is inclined somewhat backwards and against which the spacer frames 44 rest during the welding process.

Zwischen der Schweißeinrichtung 4 und der Biegevorrichtung 1 ist noch eine beispielsweise als Kreissäge 6 ausgebildete Ablängvorrichtung vorgesehen, die von den zugeführten Hohlprofilleisten Stücke mit der für den jeweiligen Abstandhalterrahmen benötigten Länge absägt. Hiezu ist neben dem Förderweg 7 für Hohlprofilleisten eine Längenmeßeinrichtung 8, beispielsweise ein Inkrementalgeber vorgesehen, der die Säge 6 steuert.Between the welding device 4 and the bending device 1 there is also a cutting device, for example designed as a circular saw 6, which cuts pieces of the length required for the respective spacer frame from the supplied hollow profile strips. For this purpose, a length measuring device 8, for example an incremental encoder, which controls the saw 6 is provided in addition to the conveyor path 7 for hollow profile strips.

Der Inkrementalgeber wird durch ein Reibrad angetrieben, dem gegenüberliegend eine an die Hohlprofilleiste anpreßbare Druckrolle vorgesehen ist. Zwischen der Längenmeßeinrichtung 8 und der Säge 6 ist noch eine Antriebswalze zum Fördern der Hohlprofilleisten vorgesehen.The incremental encoder is driven by a friction wheel, on the opposite side of which a pressure roller that can be pressed onto the hollow profile strip is provided. Between the length measuring device 8 and the saw 6 there is also a drive roller for conveying the hollow profile strips.

Das Magazin 3 für Hohlprofilleisten kann als Paternostermagazin ausgebildet werden. Dem Paternostermagazin entnommene Hohlprofilleisten werden von einem Vibrationsförderer in den Förderweg 7 für Hohlprofilleisten zugeführt.The magazine 3 for hollow profile strips can be designed as a paternoster magazine. Hollow profile strips removed from the paternoster magazine are fed into the conveying path 7 for hollow profile strips by a vibration conveyor.

Die Biegevorrichtung 1 besitzt eine Platte 10, die zur Horizontalen um etwa 10 bis 30° geneigt ist. Im Bereich des oberen Randes der Platte 10 sind in Richtung der Doppelpfeile 11 verschiebbar zwei Biegeköpfe 12 vorgesehen. In der Mitte zwischen den beiden Biegeköpfen 12 ist eine Klemme 13 vorgesehen, die eine in die Biegeköpfe 12 eingelegte Hohlprofilleiste während des Biegevorganges festhält.The bending device 1 has a plate 10 which is inclined to the horizontal by about 10 to 30 °. In the area of the upper edge of the plate 10, two bending heads 12 are slidably provided in the direction of the double arrows 11. In the middle between the two bending heads 12, a clamp 13 is provided which holds a hollow profile strip inserted into the bending heads 12 during the bending process.

Zur Abstützung der Hohlprofilleiste vor und während des Biegevorganges ist beidseits jedes Biegekopfes 12 ein Textilstreifen 14 als flexibler Abdeckstreifen für den Spalt, in dem sich die Biegeköpfe 12 entlang der Platte 10 bewegen, vorgesehen. Die Abdeckstreifen 14 sind über Umlenkwalzen 15 geführt, die einerseits im Bereich der Klemme 13 und anderseits im Bereich der Seitenränder der Platte 10 vorgesehen sind (vgl. Fig. 8).To support the hollow profile strip before and during the bending process, a textile strip 14 is provided on both sides of each bending head 12 as a flexible cover strip for the gap in which the bending heads 12 move along the plate 10. The cover strips 14 are guided over deflection rollers 15, which are provided on the one hand in the area of the clamp 13 and on the other hand in the area of the side edges of the plate 10 (cf. FIG. 8).

Die Biegeköpfe 12 besitzen die aus der DE-A-32 23 881 bekannten Auswerferbügel 95 (Fig. 19) und Abweiser, um den Auswerfvorgang einer zu einem Abstandhalterrahmen 44 gebogenen Hohlprofilleiste aus den Biegeköpfen 12 zu ermöglichen.The bending heads 12 have the ejector brackets 95 (FIG. 19) known from DE-A-32 23 881 and deflectors in order to enable the ejection process of a hollow profile strip bent from a spacer frame 44 out of the bending heads 12.

Parallel zum Rand der Platte 10, entlang der die Biegeköpfe 12 verfahrbar sind, ist eine Fördereinrichtung 20 zum Heranfördern von Hohlprofilleisten vorgesehen. Diese Fördereinrichtung 20 umfaßt zwei Abschnitte, wovon der in Fig. 2 rechts liegende Abschnitt ein endloses Förderglied 21 aufweist, wogegen der in Fig. 2 links liegende Abschnitt als Gleitbahn 22 ausgebildet ist.Parallel to the edge of the plate 10, along which the bending heads 12 can be moved, a conveyor device 20 is provided for conveying hollow profile strips. This conveyor device 20 comprises two sections, of which the section on the right in FIG. 2 has an endless conveyor member 21, whereas the section on the left in FIG. 2 is designed as a slideway 22.

Über dem endlosen Förderglied 21 sind von oben an eine heranzufördernde Hohlprofilleiste anlegbare Andrückrollen 23 vorgesehen. Die Andrückrollen 23 sind über ihre Achsen 24 an einer gemeinsamen Welle 25 befestigt, die um eine parallel zur Förderrichtung verlaufende Achse verdrehbar ist (Doppelpfeil 26). Hiezu ist mit der Welle 25 ein Lenker 27 verbunden, der mit Hilfe eines Druckmittelmotors 28 verschwenkt werden kann (Fig. 7).Above the endless conveyor member 21, pressure rollers 23 that can be applied to a hollow profile strip to be conveyed are provided from above. The pressure rollers 23 are fastened via their axes 24 to a common shaft 25 which can be rotated about an axis running parallel to the conveying direction (double arrow 26). For this purpose, a link 27 is connected to the shaft 25, which can be pivoted with the aid of a pressure medium motor 28 (FIG. 7).

Weiters ist oberhalb der Platte 10 ein Greifer 30 vorgesehen, der eine auf der Fördereinrichtung 20 liegende Hohlprofilleiste erfassen kann. Durch eine Schwenkbewegung (Doppelpfeil 31) des Greifers 30 wird die Hohlprofilleiste von der Fördereinrichtung 20 unter Verdrehung um ihre Längsachse in die Klemme 13 der Biegevorrichtung 1 eingelegt. Durch die Verdrehung um ihre Längsachse wird die mit einer ihrer Breitseiten (vorzugsweise die später die Außenseite des Abstandhalterrahmens bildende Seite) auf dem Förderglied 21 bzw. der Gleitbahn 22 aufliegende Hohlprofilleiste so verdreht, daß sie in der Klemme 13 hochkant steht, wobei die Klemme 13 an ihren beiden Breitseiten angreift.Furthermore, a gripper 30 is provided above the plate 10, which can grip a hollow profile bar lying on the conveyor 20. By means of a pivoting movement (double arrow 31) of the gripper 30, the hollow profile strip is inserted into the clamp 13 of the bending device 1 by the conveyor device 20 while being rotated about its longitudinal axis. Due to the rotation about its longitudinal axis, the hollow profile bar resting on one of its broad sides (preferably the side later forming the outside of the spacer frame) on the conveying member 21 or the slideway 22 is rotated so that it stands upright in the clamp 13, the clamp 13 attacks on their two broad sides.

Der Greifer 30 umfaßt einen Tragarm 32, der mehrfach gewinkelt und um eine unterhalb der Fördereinrichtung 20 angeordnete, zu dieser parallel ausgerichtete Achse 33 verschwenkbar ist. Hiezu ist z.B. ein nicht näher gezeigter Druckmittelmotor vorgesehen (Fig. 7).The gripper 30 comprises a support arm 32 which is angled several times and parallel to a conveyor 20 arranged below it aligned axis 33 is pivotable. For this purpose, for example, a pressure medium motor (not shown in detail) is provided (FIG. 7).

Der Greifer 30 besitzt zwei Klemmbacken 34, 35, die jeweils zwei Zinken aufweisen und die von unten bzw. von oben gegen eine auf der Fördereinrichtung 20 liegende Hohlprofilleiste anlegbar sind. Zur Bewegung der Klemmbacken 34, 35 sind diese mit einem Antriebsmotor 36 gekuppelt Fig. 7 zeigt, daß die Klemmbacken 34, 35 des Greifers 30 in dessen Ausgangslage oberhalb bzw. unterhalb einer auf der Fördereinrichtung 20 angeordneten Hohlprofilleiste angeordnet sind. In der der Klemme 13 zugeordneten Stellung des Greifers 30 sind die Zinken seiner Klemmbacken 34, 35 beidseits der Backen der Klemme 13 angeordnet.The gripper 30 has two clamping jaws 34, 35, each of which has two prongs and which can be placed from below or from above against a hollow profile bar lying on the conveyor 20. To move the clamping jaws 34, 35, they are coupled to a drive motor 36. FIG. 7 shows that the clamping jaws 34, 35 of the gripper 30 are arranged in their starting position above or below a hollow profile bar arranged on the conveyor 20. In the position of the gripper 30 assigned to the clamp 13, the tines of its clamping jaws 34, 35 are arranged on both sides of the jaws of the clamp 13.

Zwischen der Förderbahn 20 und der Bewegungsbahn der Biegeköpfe 12 ist noch eine Leitfläche 37 vorgesehen. Die sich beidseits des Greifers 30 erstrekkenden Abschnitte einer Hohlprofilleiste gleiten beim Umsetzen der Hohlprofilleiste von der Fördereinrichtung 20 in die Biegeköpfe 12 entlang der Leitfläche 37 auf die Abdeckstreifen 14.A guide surface 37 is also provided between the conveyor path 20 and the path of movement of the bending heads 12. The sections of a hollow profile bar extending on both sides of the gripper 30 slide from the conveyor device 20 into the bending heads 12 along the guide surface 37 onto the cover strips 14 when the hollow profile bar is moved.

Der Förderbahn 20 ist noch eine Längenmeßeinrichtung, beispielsweise ein mit einer Umlenkrolle für das endlose Förderglied 21 gekuppelter Inkrementalgeber und zwischen dem abgabeseitigen Ende des Fördergliedes 21 und dem Greifer 30 eine Lichtschranke (nicht gezeigt) zugeordnet.The conveyor track 20 is also a length measuring device, for example an incremental encoder coupled to a deflection roller for the endless conveyor member 21 and a light barrier (not shown) between the delivery end of the conveyor member 21 and the gripper 30.

Die Andrückrollen 23 können zur Förderrichtung der Fördereinrichtung 20 etwas schräg gestellt sein, so daß die auf ihr herangeförderten Hohlprofilleisten (vgl. Fig. 4) gegen eine plattenseitig neben dem endlosen Förderglied 21 angeordnete Führungsleiste 29 gezogen werden, während sie herangefördert werden. Dadurch sind die Hohlprofilleisten gegenüber den Klemmbacken 34 und 35 des Greifers 30 so angeordnet, daß sie von diesen mit ihren vorderen Enden erfaßt werden und ein sicheres Einlegen in die Klemme 13 der Biegevorrichtung 1 gewährleistet ist.The pressure rollers 23 can be set somewhat obliquely to the conveying direction of the conveying device 20, so that the hollow profile strips conveyed thereon (see FIG. 4) are pulled against a guide strip 29 arranged on the plate side next to the endless conveying member 21 while they are being conveyed up. As a result, the hollow profile strips are arranged opposite the jaws 34 and 35 of the gripper 30 in such a way that they are grasped by them with their front ends and a secure insertion into the clamp 13 of the bending device 1 is ensured.

In der Platte 10 der Biegevorrichtung 1 ist ein zur Bewegungsrichtung (Doppelpfeil 11) der Biegeköpfe 12 senkrecht ausgerichteter Schlitz 40 vorgesehen. In diesem Schlitz 40 ist eine endlose, um zwei Umlenkrollen geführte Kette 41 vorgesehen, deren oberes Trum knapp unterhalb der Oberseite der Platte 10 angeordnet ist. Über die Hälfte ihrer Länge ist die Kette 41 mit nach oben weisenden, plattenförmigen Ansätzen 42 ausgestattet, die bei entsprechender Stellung der Kette 41 durch den Schlitz 40 in der Platte 10 nach oben ragen. Wie in Fig. 2 gezeigt, liegt der obere horizontale Schenkel 43 eines in der Biegevorrichtung 1 gebogenen und aus den Biegeköpfen 12 ausgeworfenen Abstandhalterrahmens 44 am obersten Ansatz 42 der Kette 41 an. Die beiden freien Enden 45 der zu einem Abstandhalterrahmen 44 gebogenen Hohlprofilleiste liegen weiter unten beidseitig an den Ansätzen 42 an. Durch Bewegen der Kette 41 kann ein aus den Biegeköpfen 12 ausgeworfener Abstandhalterrahmen 44 zum unteren Rand der Platte 10 der Biegevorrichtung 1 transportiert werden.In the plate 10 of the bending device 1, a slot 40 is provided which is perpendicular to the direction of movement (double arrow 11) of the bending heads 12. In this slot 40 there is an endless chain 41 which is guided around two deflection rollers and whose upper run is arranged just below the top of the plate 10. Over half of its length, the chain 41 is equipped with upwardly facing, plate-shaped projections 42 which, when the chain 41 is in the appropriate position, project upwards through the slot 40 in the plate 10. As shown in FIG. 2, the upper horizontal leg 43 of a spacer frame 44 bent in the bending device 1 and ejected from the bending heads 12 bears against the uppermost extension 42 of the chain 41. The two free ends 45 of the hollow profile strip bent into a spacer frame 44 rest on the lugs 42 on both sides below. By moving the chain 41, a spacer frame 44 ejected from the bending heads 12 can be transported to the lower edge of the plate 10 of the bending device 1.

Im Bereich des unteren Randes der Platte 10 ist ein Transportschlitten 50 vorgesehen, der entlang des unteren Randes auf Führungsschienen geführt in Richtung des Doppelpfeiles 51 zu einer Übergabevorrichtung 60 und wieder zurück verschiebbar ist. Für die Bewegungen des Transportschlittens 50 sind nicht näher gezeigte Antriebsmittel (z.B. endlose Ketton od. dgl.) vorgesehen.In the area of the lower edge of the plate 10, a transport carriage 50 is provided, which is guided along the lower edge on guide rails in the direction of the double arrow 51 to a transfer device 60 and back again. For the movements of the transport carriage 50, drive means (not shown in detail, for example, endless chain or the like) are provided.

Am Transportschlitten 50 sind zwei Klemmen 52 vorgesehen, mit welchen ein Abstandhalterrahmen 44, nachdem er von der Kette 41 zum unteren Rand der Platte 10 gefördert worden ist, am Transportschlitten 50 festlegbar ist. Jede der Klemmen 52 umfaßt eine hakenförmig ausgebildete Klemmbacke 53, die am Transportschlitten 50 in Schwenklagern 54 gleitend geführt sind, so daß sie unter der Einwirkung von Druckmittelzylindern 55 einerseits verschwenkt und dann zur Klemmung eines Abstandhalterrahmens 44 an einer Anlagefläche 56 des Transportschlittens 50 verschiebbar sind (Fig. 9 und 10). Um die Bewegung der Klemmbacken 53 entsprechend zu steuern, sind die Verbindungsgelenke zwischen den Kolbenstangen der Druckmittelmotore 55 und den Klemmen 53 in in Führungsblechen vorgesehenen Schlitzen 59 geführt, wobei die Schlitze 59 etwa S-förmig ausgeführt sind. Die Klemmbacken 52 sind weiters am Transportschlitten 50 um Lager 56, d.h. um zur Platte 10 senkrechte Achsen unter der Einwirkung eines Durckmittelmotors 57 verschwenkbar, so daß die freien Enden 45 des Abstandhalterrahmens 44 von beiden Seiten her gegen eine Zentrierlamelle 58, die am Transportschlitten 50 ortsfest befestigt ist, gedrückt werden können (Fig. 5).Two clamps 52 are provided on the transport carriage 50, by means of which a spacer frame 44, after it has been conveyed from the chain 41 to the lower edge of the plate 10, can be fixed on the transport carriage 50. Each of the clamps 52 comprises a hook-shaped clamping jaw 53 which is slidably guided on the transport carriage 50 in pivot bearings 54 so that they are pivoted on the one hand under the action of pressure medium cylinders 55 and can then be displaced on a contact surface 56 of the transport carriage 50 for clamping a spacer frame 44 ( 9 and 10). In order to control the movement of the clamping jaws 53 accordingly, the connecting joints between the piston rods of the pressure medium motors 55 and the clamps 53 are guided in slots 59 provided in guide plates, the slots 59 being approximately S-shaped. The jaws 52 are further on the carriage 50 around the bearing 56, i.e. about axes perpendicular to the plate 10 under the action of a pressure medium motor 57, so that the free ends 45 of the spacer frame 44 can be pressed from both sides against a centering lamella 58, which is fixed to the transport carriage 50 (FIG. 5).

Nachdem ein Abstandhalterrahmen 44 am Transportschlitten 50 festgelegt worden ist, bewegt sich dieser zur Übergabevorrichtung 60, wobei die Bewegung des Abstandhalterrahmens 44 entlang der Platte 10 durch ein in einem weiteren Schlitz 61 der Platte 10 vorgesehenes Transportband 62 unterstützt werden kann. Das Transportband 62 ist, wie Fig. 6 zeigt, aus einer unter die Platte 10 versenkten Lage (während des Biegevorganges) in eine über die Oberseite der Platte 10 vorstehende Wirklage anhebbar. Das Transportband 62 ist vorzugsweise als Transportriemen mit nach außen weisenden Zähnen aus gummielastischem Werkstoff gefertigt.After a spacer frame 44 has been fixed on the transport carriage 50, it moves to the transfer device 60, wherein the movement of the spacer frame 44 along the plate 10 can be supported by a conveyor belt 62 provided in a further slot 61 of the plate 10. As shown in FIG. 6, the conveyor belt 62 can be raised from a position sunk under the plate 10 (during the bending process) into a working position protruding above the top of the plate 10. The conveyor belt 62 is preferably made as a conveyor belt with outwardly facing teeth made of rubber-elastic material.

Die Ăśbergabevorrichtung 60 (Fig. 3 und 13 bis 15) ist dazu bestimmt, einen Abstandhalterrahmen 44 von der Platte 10 der Biegevorrichtung 1 abzuheben und an eine neben der Biegevorrichtung 1 angordnete SchweiĂźvorrichtung 5 zu ĂĽbergeben, in der die freien Enden 45 des Abstandhalterrahmens 44 miteinander stumpf verschweiĂźt werden.The transfer device 60 (FIGS. 3 and 13 to 15) is intended to lift a spacer frame 44 from the plate 10 of the bending device 1 and to transfer it to a welding device 5 arranged next to the bending device 1, in which the free ends 45 of the spacer frame 44 are connected to one another be butt welded.

Die Übergabevorrichtung 60 besitzt einen Rahmen 63, der um eine Achse 64 verschwenkbar ist Am Rahmen 63 sind eine Platte und von dieser ausgehend zwei Holme 65 vorgesehen, an welchen der obere, horizontale Schenkel 43 eines Abstandhalterrahmens 44 während des Umsetzens des Abstandhalterrahmens 44 anliegt.The transfer device 60 has a frame 63 which is pivotable about an axis 64 Am Frame 63 is a plate and starting from this two spars 65 are provided, on which the upper, horizontal leg 43 of a spacer frame 44 abuts during the implementation of the spacer frame 44.

Der untere, horizontale Schenkel des Abstandhalterrahmens 44 wird von an einen Balken 66 der Übergabgevorrichtung 60 vorgesehenen Klemmen 67 (Fig. 12) festgehalten und ggf. zusätzlich durch an den äußeren Enden des Balkens 66 vorgesehenen zusätzlichen Klemmen 68 (Fig. 11) fixiert, wenn der Abstandhalterrahmen genügend lang ist.The lower, horizontal leg of the spacer frame 44 is held by clamps 67 (FIG. 12) provided on a beam 66 of the transfer device 60 and, if necessary, additionally fixed by additional clamps 68 (FIG. 11) provided on the outer ends of the beam 66, if the spacer frame is long enough.

Die inneren Klemmen 67 am Balken 66 umfassen je eine Klemmplatte 69, die durch einen Druckmittelmotor 70 auf ein am Balken 66 starr befestigtes Widerlager 71 zu verschiebbar sind.The inner clamps 67 on the beam 66 each comprise a clamping plate 69 which can be displaced by a pressure medium motor 70 onto an abutment 71 rigidly fastened to the beam 66.

Die beiden äußeren Klemmen 68 umfassen parallel zur Längserstreckung des Balkens 66 verschwenkbare Klemmbacken 72. Zur Verschwenkung der Klemmbacken 72 der Klemmen 68 sind Druckmittelmotore 73 vorgesehen.The two outer clamps 68 comprise clamping jaws 72 which can be pivoted parallel to the longitudinal extent of the bar 66. Pressure medium motors 73 are provided for pivoting the clamping jaws 72 of the clamps 68.

Der Balken 66 ist um eine parallel zu seiner Längserstreckung und parallel zum unteren Rand der Platte 10 ausgerichtete Achse 74 verschwenkbar, d.h. in Richtung der Platte 10 hin- und herbewegbar. Zusätzlich ist der Balken 66 über die Platte 10 anheb- und unter diese wieder absenkbar. Hiezu sind die an den Enden von Armen 75 vorgesehenen Schwenklager 76 (Achse 74) an Lenkem 77 befestigt, die an einer Welle 78 befestigt sind. Durch Betätigen von Druckmittelmotoren 79 kann der Balken 66 gegenüber der Platte 10 angehoben bzw. abgesenkt werden, wogegen durch Betätigen der Druckmittelmotore 80 der Balken 66 mit seinen Klemmen 67 und 68 etwa in der Ebene der Platte 10 hin- und herbewegt werden kann.The beam 66 is pivotable about an axis 74 oriented parallel to its longitudinal extent and parallel to the lower edge of the plate 10, i.e. can be moved back and forth in the direction of the plate 10. In addition, the bar 66 can be raised and lowered under the plate 10. For this purpose, the pivot bearings 76 (axis 74) provided on the ends of arms 75 are fastened to links 77, which are fastened to a shaft 78. By actuating pressure medium motors 79, the bar 66 can be raised or lowered relative to the plate 10, whereas by actuating the pressure medium motors 80 the bar 66 with its clamps 67 and 68 can be moved back and forth approximately in the plane of the plate 10.

Die soeben beschriebene Vorrichtung zur Herstellung eines Abstandhalterrahmens 44 fĂĽr Isolierglas aus einer Hohlprofillleiste arbeitet wie folgt:The device just described for producing a spacer frame 44 for insulating glass from a hollow profile strip works as follows:

Der Rahmenbiegevorrichtung 1 wird über die Transporteinrichtung 20 eine entweder von der Rollformvorrichtung 2 geformte oder eine aus dem Magazin 3 entnommene und in der Schweißvorrichtung 4 endlos zusammengeschweißte Hohlprofilleiste zugeführt. Dabei wird die Hohlprofilleiste von der Säge 6 genau auf die für die Herstellung des jeweiligen Abstandhalterrahmens 44 benötigte Länge abgelängt. Die Längenmessung erfolgt über die Längenmeßeinrichtung 8, die als Inkrementalgeber ausgebildet ist und vor der Säge 6 und nach der Schweißvorrichtung 4 vorgesehen ist. Zwischen der Längenmeßvorrichtung 8 und der Säge 6 ist noch eine (in den Zeichnungen nicht gezeigte) Antriebswalze zum Transportieren der Hohlprofilleiste zur Fördereinrichtung 20 vorgesehen.The frame bending device 1 is supplied via the transport device 20 with a hollow profile strip either formed by the roll forming device 2 or removed from the magazine 3 and welded together endlessly in the welding device 4. The hollow profile strip is cut to length from the saw 6 to the length required for the production of the respective spacer frame 44. The length is measured using the length measuring device 8, which is designed as an incremental encoder and is provided in front of the saw 6 and after the welding device 4. Between the length measuring device 8 and the saw 6 there is also a drive roller (not shown in the drawings) for transporting the hollow profile bar to the conveyor 20.

Die Fördereinrichtung 20 am oberen Rand der Biegevorrichtung 1 transportiert die entsprechend abgelängte Hohlprofilleiste so weit, daß sie genau mittig zwischen den Biegeköpfen 12 angehalten wird. Dies bewirkt, daß die Stoßstelle zwischen den freien Enden 45 der zu einem Abstandhalterrahmen 44 gebogenen Hohlprofilleiste zu den Biegeköpfen 12 und zum Transportschlitten 50 genau symmetrisch zu liegen kommt. Hiezu ist am Ende des Fördergliedes 21 eine Lichtschranke vorgesehen, die das vordere Ende einer herangeförderten Hohl profil leiste erfaßt und den mit dem Förderglied 21 verbundenen Inkrementalgeber zur Längenmessung in Betrieb setzt, der unter Berücksichtigung der Länge der Hohlprofilleiste den Antrieb für den Endlosförderer 21 stillsetzt, wenn sich die Mitte der Hohlprofilleiste genau zwischen den Biegeköpfen 12 liegt, d.h. zum Greifer 30 bzw. der Klemme 13 symmetrisch ausgerichtet ist. Nachdem die Hohlprofilleiste richtig positioniert wurde, werden die Andrückrollen 23 durch Betätigen des Druckmittelmotors 28 vom Förderglied 21 abgehoben und der Greifer 30 wird betätigt und legt die Hohlprofilleiste in die Klemme 13 zwischen den Biegeköpfen 12 ein. Dann wird die Hohlprofilleiste von der Klemme 13 hochkant stehend festgeklemmt.The conveyor 20 at the upper edge of the bending device 1 transports the correspondingly cut hollow profile strip so far that it is stopped exactly in the middle between the bending heads 12. This has the effect that the joint between the free ends 45 of the hollow profile strip bent to form a spacer frame 44 comes to lie exactly symmetrically with the bending heads 12 and the transport slide 50. For this purpose, a light barrier is provided at the end of the conveyor member 21, which detects the front end of a hollow profile led up and starts the incremental encoder connected to the conveyor member 21 for length measurement, which stops the drive for the endless conveyor 21, taking into account the length of the hollow profile ledge, if the center of the hollow profile strip lies exactly between the bending heads 12, ie is aligned symmetrically to the gripper 30 or the clamp 13. After the hollow profile strip has been correctly positioned, the pressure rollers 23 are lifted from the conveying member 21 by actuating the pressure medium motor 28 and the gripper 30 is actuated and inserts the hollow profile strip into the clamp 13 between the bending heads 12. Then the hollow profile strip is clamped upright by the clamp 13.

Vor Ausführung des Biegevorganges wird die im Schlitz 40 der Platte 10 vorgesehene Kette 41 so positioniert, daß der oberste der an ihr befestigten Ansätze 42 etwa die in Fig. 2 gezeigte Lage einnimmt. Nun wird z.B., so wie in der DE-A-32 23 881 beschrieben, aus der Hohlprofilleiste ein Abstandhalterrahmen 44 gebogen. Nach dem Betätigen derAuswerfer 95 an den beiden Biegeköpfen 12 nimmt der Abstandhalterrahmen 44 die in Fig. 2 gezeigte Lage ein, d.h. sein oberer, horizontaler Schenkel 43 liegt am obersten Ansatz 42 an der Kette 41 an. Die beiden freien, noch zu verschweißenden Enden 45 der Hohlprofilleiste liegen weiter unten von der Seite her an nach oben stehenden Ansätzen 42 der Kette 41 beidseitig an bzw. befinden sich neben den Ansätzen 42. Hierauf wird die Kette 41 in Bewegung gesetzt und der Abstandhalterrahmen 44 entlang der Platte 10 nach unten zum Transportschlitten 50 gefördert. Der untere, horizontale Schenkel des Abstandhalterrahmens 44 betätigt einen nicht gezeigten, kapazitativen Annäherungsschalter, der in der Platte 10 im Bereich des Schlittens 50 vorgesehen ist, worauf die beiden Klemmen 52 betätigt werden und den Abstandhalterrahmen 44 gegen die Klemmflächen 49 des Transportschlittens 50 anliegend festhalten. Hierauf werden die beiden Klemmen 52 durch Betätigen des Druckmittelmotors 57 einander angenähert, so daß die beiden freien Enden 45 des Abstandhalterrahmens 44 an der Zenbierlamelle 58 anliegen. Falls der Hub der beiden Klemmen 52 größer ist als der Abstand der freien Enden 45 von der Zentrierlamelle 58, rutschen die Klemmbacken 53 am Abstandhalterrahmen 44 durch.Before the bending process is carried out, the chain 41 provided in the slot 40 of the plate 10 is positioned such that the uppermost of the lugs 42 attached to it assumes approximately the position shown in FIG. 2. Now, for example, as described in DE-A-32 23 881, a spacer frame 44 is bent from the hollow profile strip. After actuating the ejectors 95 on the two bending heads 12, the spacer frame 44 assumes the position shown in FIG. its upper, horizontal leg 43 abuts the chain 41 at the uppermost extension 42. The two free ends 45 of the hollow profile strip, which are still to be welded, rest further down from the side on upward-facing lugs 42 of the chain 41 on both sides or are located next to the lugs 42. The chain 41 is then set in motion and the spacer frame 44 conveyed downward along the plate 10 to the transport carriage 50. The lower, horizontal leg of the spacer frame 44 actuates a capacitive proximity switch, not shown, which is provided in the plate 10 in the area of the carriage 50, whereupon the two clamps 52 are actuated and hold the spacer frame 44 against the clamping surfaces 49 of the transport carriage 50. Then the two clamps 52 are brought closer to one another by actuating the pressure medium motor 57, so that the two free ends 45 of the spacer frame 44 rest against the Zen beer lamella 58. If the stroke of the two clamps 52 is greater than the distance of the free ends 45 from the centering lamella 58, the clamping jaws 53 slip on the spacer frame 44.

Hierauf bewegt sich der Transportschlitten 50 mit dem von ihm gehaltenen Abstandhalterrahmen 44 zur Ăśbergabevorrichtung 60 am Ende der Platte 10.The transport carriage 50 then moves with the spacer frame 44 held by it to the transfer device 60 at the end of the plate 10.

Um zu verhindem, daß sich größere Abstandhalterrahmen 44 während dieses Transportes verziehen, wird das Förderglied 62 im Schlitz 61 in der Platte 10 angehoben und unterstützt den Transport des Abstandhalterrahmens 44 zur Übergabevorrichtung 60.In order to prevent larger spacer frames 44 from warping during this transport, the conveying member 62 is raised in the slot 61 in the plate 10 and supports the transport of the spacer frame 44 to the transfer device 60.

Vor Ankunft des Transportschlittens 50 an der Übergabevorrichtung 60 ist der Balken 66 mit seinen Klemmen 67 und 68 nach unten versetzt worden (Verdrehung um die Welle 78), so daß die Klemmen 67 und 68 die Bewegung des Abstandhalterrahmens 44 nicht behindern. Bei geöffneten Klemmen 67 und 68 wird nun der Balken 66 der Übergabevorrichtung 60 angehoben und (Betätigung der Druckmittelmotore 79) zum unteren, am Schlitten 50 festgeklemmten Schenkel des Abstandhalterrahmens 44 hin bewegt (Betätigung der Druckmittelmotore 80). Hierauf werden die Klemmen 67 und bei genügend langem Abstandhalterrahmen auch die Klemmen 68 geschlossen, so daß der Abstandhalterrahmen 44 mit seinem unteren, horizontalen Schenkel an der Übergabevorrichtung 60 festgelegt ist. Die Klemmen 52 des Transportschlittens 50 werden geöffnet, der Balken 66 der Übergabevorrichtung 60 bewegt sich zurück (Betätigung der Druckmittelmotore 80) und der Schlitten 50 kann in seine in Fig. 2 gezeigte Ausgangslage zurückbewegt werden.Before the transport carriage 50 arrives at the transfer device 60, the clamp 66 and its clamps 67 and 68 have been displaced downward (rotation about the shaft 78) so that the clamps 67 and 68 do not hinder the movement of the spacer frame 44. With the clamps 67 and 68 open, the bar 66 of the transfer device 60 is now raised and (actuation of the pressure medium motors 79) is moved toward the lower leg of the spacer frame 44 which is clamped to the slide 50 (actuation of the pressure medium motors 80). Then the clamps 67 and, if the spacer frame is sufficiently long, also the clamps 68 are closed, so that the spacer frame 44 is fixed to the transfer device 60 with its lower, horizontal leg. The clamps 52 of the transport carriage 50 are opened, the bar 66 of the transfer device 60 moves back (actuation of the pressure medium motors 80) and the carriage 50 can be moved back into its starting position shown in FIG. 2.

Nun verschwenkt die Übergabevorrichtung 60 um ihre Achse 64 und stellt den Abstandhalter 44 in die der Biegevorrichtung 1 nachgeschaltete Schweißvorrichtung 5 ein. Zum Einstellen des Abstandhalterrahmens 44 in die Schweißvorrichtung 5 wird der Balken 66 mit den Klemmen 67 und 68 wieder bewegt, d.h. bei nach oben geschwenkter Übergabevorrichtung 60 von den Druckmittelmotoren 80 nach unten bewegt Die Klemmen 67 und 68 öffnen sich und der Balken 66 bewegt sich wieder nach oben, worauf die Übergabevorrichtung 60 wieder in ihre Ausgangslage (Fig. 2) zurückgeschwenkt wird.Now the transfer device 60 pivots about its axis 64 and sets the spacer 44 in the welding device 5 connected downstream of the bending device 1. To set the spacer frame 44 in the welding device 5, the bar 66 is moved again with the clamps 67 and 68, i.e. when the transfer device 60 is pivoted upwards, it is moved downward by the pressure medium motors 80. The clamps 67 and 68 open and the bar 66 moves up again, whereupon the transfer device 60 is pivoted back into its starting position (FIG. 2).

Während dieser Tätigkeit der Übergabevorrichtung 60 wurde der Transportschlitten 50 in seine in Fig. 2 gezeigte Bereitschaftsstellung zurückbewegt, um den nächsten inzwischen gebogenen Abstandhalterrahmen 44 zu übernehmen und zur Übergabevorrichtung 60 zu transportieren.During this activity of the transfer device 60, the transport carriage 50 was moved back into its ready position shown in FIG. 2 in order to take over the next spacer frame 44, which has meanwhile been bent, and to transport it to the transfer device 60.

Nach dem ZurĂĽckschwenken der Ăśbergabevorrichtung 60 in die in Fig. 2 gezeigte Bereitsschaftsstellung wird der Balken 66 wieder abgesenkt, so daĂź sich die Klemmen 67 und 68 unter der Oberseite der Platte 10 der Biegevorrichtung 1 befinden.After the transfer device 60 has been pivoted back into the ready position shown in FIG. 2, the bar 66 is lowered again, so that the clamps 67 and 68 are located under the top of the plate 10 of the bending device 1.

Gemäß einer nicht gezeigten Ausführungsform kann die Übergabevorrichtung 60 am unteren Rand der Platte 10 der Biegevorrichtung 1 symmetrisch zum Greifer 30 zum Umsetzen der zu Abstandhalterrahmen 44 zu biegenden Hohlprofilleisten von der Fördereinrichtung 20 in die Klemme 13 und die Biegeköpfe 12 angeordnet sein. Bei dieser Ausführungsform ist kein Transportschlitten 50 vorgesehen und die Vorrichtung zum Weiterbearbeiten der Abstandhalterrahmen 44 (z.B. die Schweißvorrichtung 5) ist ebenfalls symmetrisch zum Greifer 30 und zur Klemme 13 angeordnet.According to an embodiment which is not shown, the transfer device 60 can be arranged at the lower edge of the plate 10 of the bending device 1 symmetrically to the gripper 30 for converting the hollow profile strips to be bent into spacer frames 44 from the conveyor device 20 into the clamp 13 and the bending heads 12. In this embodiment, no transport carriage 50 is provided and the device for further processing the spacer frames 44 (e.g. the welding device 5) is also arranged symmetrically to the gripper 30 and to the clamp 13.

An Stelle der mit Ansätzen 42 versehenen endlosen Kette 41 kann bei der erfindungsgemäßen Vorrichtung als Fördermittel, das die aus den Biegeköpfen 12 ausgehobenen und auf der Platte 10 aufliegenden Abstandhalterrahmen 44 zum unteren Rand der Platte 10, d.h. zum Transportschlitten 50 oder unmittelbar zur Übergabevorrichtung 60 bewegt, ein Schlitten vorgesehen sein. Dieser Schlitten ist auf senkrecht zur Förderrichtung der Fördereinrichtung 20 und parallel zur Ebene der Platte 10 ausgerichteten Führungen (z.B. Führungsstangen) hin und her verfahrbar. Weiters ist dieser Schlitten mit Klemmen ausgestattet, die den Abstandhalterrahmen 44 erfassen und wieder freigeben, sobald der Abstandhalterrahmen 44 gegenüber dem Transportschlitten 50 bzw. der Übergabevorrichtung 60 ausgerichtet ist und von den an diesen vorgesehenen Klemmeinrichtungen 52 bzw. 67, 68 erfaßt worden istInstead of the endless chain 41 provided with lugs 42, the device according to the invention can be used as a conveying means for the spacer frames 44 lifted from the bending heads 12 and resting on the plate 10 to the lower edge of the plate 10, i.e. moved to the transport carriage 50 or directly to the transfer device 60, a carriage can be provided. This carriage can be moved back and forth on guides (e.g. guide rods) oriented perpendicular to the conveying direction of the conveyor device 20 and parallel to the plane of the plate 10. Furthermore, this carriage is equipped with clamps which grip the spacer frame 44 and release it again as soon as the spacer frame 44 is aligned with the transport carriage 50 or the transfer device 60 and has been detected by the clamping devices 52 or 67, 68 provided thereon

Eine Ausführungsform einer mit einem Schlitten als Fördermittel ausgestatteten Biegevorrichtung 1 ist in den Fig. 16 bis 19 gezeigt.An embodiment of a bending device 1 equipped with a slide as a conveying means is shown in FIGS. 16 to 19.

Bei dieser AusfĂĽhrungsform der Biegevorrichtung 1, die im ĂĽbrigen so wie anhand der Fig. 1 bis 15 beschrieben ausgebildet ist, ist in der Platte 10 der Biegevorrichtung 1 ein Schlitz 100 vorgesehen, der sich von der Klemme 13 nach unten erstreckt. In diesem Schlitz 100 ist ein Schlitten 101 und eine Leiteinrichtung 102 fĂĽr die freien Enden 45 der zu einem Abstandhalterrahmen 44 gebogenen Hohlprofilleiste vorgesehen. Durch die Leiteinrichtung 102 werden die freien Enden 45 des Abstandhalterrahmens 44 so gefĂĽhrt, daĂź sie beidseits der Zentrierlamelle 58 des Transportschlittens 50 angeordnet sind, wenn der untere, horizontale Schenkel der Abstandhalterrahmens 44 zum Transportschlitten 50 bewegt worden ist.In this embodiment of the bending device 1, which is otherwise designed as described with reference to FIGS. 1 to 15, a slot 100 is provided in the plate 10 of the bending device 1, which extends downward from the clamp 13. In this slot 100, a slide 101 and a guide device 102 are provided for the free ends 45 of the hollow profile strip bent into a spacer frame 44. The free ends 45 of the spacer frame 44 are guided by the guide device 102 such that they are arranged on both sides of the centering lamella 58 of the transport carriage 50 when the lower, horizontal leg of the spacer frame 44 has been moved to the transport carriage 50.

Der Schlitten 101 ist über seinen Rahmen 103 auf sich parallel zum Schlitz 100 erstreckenden Führungsschienen 104 in Richtung des Doppelpfeiles 105 verschiebbar geführt. Die Führungsschienen 104 sind an einem Gestell 106 befestigt, das auch die Leiteinrichtung 102 trägt. Das Gestell 106 ist im Rahmen der Biegevorrichtung 1 um eine parallel zum Schlitz 100 ausgerichtete Achse 107 durch einen Druckmittelmotor 108 verschwenkbar (Pfeil 109), so daß der Schlitten 101 und die Leiteinrichtung 102 unter die Platte 10 der Biegevorrichtung 1 abgesenkt werden kann, wenn der Transportschlitten 50 einen Abstandhalterrahmen 44 zur Übergabevorrichtung 60 transportiert. Der Druckmittelmotor 108 ist im Rahmen der Biegevorrichtung 1 abgestützt, wie dies in Fig. 17 angedeutet ist.The slide 101 is slidably guided in the direction of the double arrow 105 over its frame 103 on guide rails 104 extending parallel to the slot 100. The guide rails 104 are fastened to a frame 106 which also carries the guide device 102. The frame 106 is pivotable in the frame of the bending device 1 about an axis 107 aligned parallel to the slot 100 by a pressure medium motor 108 (arrow 109), so that the slide 101 and the guide device 102 can be lowered under the plate 10 of the bending device 1 if the Transport carriage 50 transports a spacer frame 44 to the transfer device 60. The pressure medium motor 108 is supported in the frame of the bending device 1, as indicated in FIG. 17.

Die Leiteinrichtung 102 besteht aus zwei sich in Längsrichtung des Schlitzes 100 erstreckenden Blechprofilen 81 und 81'. Das Blechprofil 81' besitzt einen Schenkel 82, der mit seinem freien Rand mit der Oberseite der Platte 10 der Biegevorrichtung 1 bündig angeordnet ist und der sich von der Platte 10 weg schräg nach oben erstreckt. An seinem anderen Rand ist das Blechprofil 81' U-förmig abgewinkelt und bildet so eine Nut 96 zur Aufnahme des einen Endes 45 der zu seinem Abstandhalterrahmen 44 gebogenen Hohlprofilleiste. Das Blechprofil 81 der Leiteinrichtung 102 ist im wesentlichen L-förmig ausgebildet, wobei sein nach oben abgewinkelter Schenkel 84 an der Unterseite des Schenkels 82 des Blechprofils 81' anschließt Wie aus Fig. 17 ersichtlich, ist der nach oben abgewinkelte Schenkel 84 des Blechprofils 81 gegenüber dem vertikalen Abschnitt 83 der U-förmigen Abwinkelung des Blechprofiles 81' versetzt angeordnet, so daß sich die freien Enden 45 der zu einem Abstandhalterrahmen gebogenen Hohlprofilleiste 44 überlappen können. Wie in Fig. 16 angedeutet, weicht der Schenkel 84 des Blechprofils 81 wenigstens in seinem unteren Abschnitt von seinem parallel zum Schlitz 100 ausgerichteten Verlauf ab, so daß er am unteren Ende der Leiteinrichtung 102 genau unterhalb des vertikalen Abschnittes 83 der U-profilförmigen Abwinkelung des Blechprofils 81' endet. Damit die freien Enden 45 des Abstandhalterrahmens 44 am unteren Ende der Platte 10, d.h. am unteren Ende der Leiteinrichtung 102 in der gleichen Höhe ausgerichtet sind, besitzt die obere Begrenzungswand der Nut 96 am unteren Ende einen nach unten abweichenden Abschnitt 83' und der Schenkel 82 des Blechprofils 81' ist am unteren Ende der Leiteinrichtung 102 längs einer Biegelinie 82' (Fig. 16, 18) nach unten abgebogen. So wird das in der Nut 96 aufgenommene Ende 45 des Abstandhalterrahmens 44 am Ende der Leiteinrichtung 102 in die Höhe der Oberseite der Platte 10 gelenkt. Auf diese Weise werden die freien Enden 45 des Abstandhalterrahmens 44 so geführt, daß sie beidseits der Zentrierlamelle 58 des Transportschlittens 50 angeordnet sind, wenn der Abstandhalterrahmen 44 vom Schlitten 101 so weit nach unten bewegt worden ist, daß der untere, horizontale Schenkel des Abstandhalterrahmens 44 am Transportschlitten 50 bzw. dessen Anlageflächen 49 anliegt.The guide device 102 consists of two extending in the longitudinal direction of the slot 100 Sheet profiles 81 and 81 '. The sheet profile 81 'has a leg 82 which is arranged with its free edge flush with the top of the plate 10 of the bending device 1 and which extends obliquely upwards away from the plate 10. At its other edge, the sheet metal profile 81 'is angled in a U-shape and thus forms a groove 96 for receiving one end 45 of the hollow profile strip bent to its spacer frame 44. The sheet profile 81 of the guide device 102 is essentially L-shaped, its upwardly angled leg 84 adjoining the underside of the leg 82 of the sheet profile 81 '. As can be seen from FIG. 17, the upwardly angled leg 84 of the sheet profile 81 is opposite the vertical section 83 of the U-shaped bend of the sheet profile 81 'is arranged offset, so that the free ends 45 of the hollow profile bar 44 bent to form a spacer frame can overlap. As indicated in Fig. 16, the leg 84 of the sheet profile 81 deviates at least in its lower portion from its parallel to the slot 100 course, so that it is at the lower end of the guide device 102 just below the vertical portion 83 of the U-shaped bend of the Sheet profile 81 'ends. So that the free ends 45 of the spacer frame 44 are aligned at the same height at the lower end of the plate 10, ie at the lower end of the guide device 102, the upper boundary wall of the groove 96 has a downwardly deviating section 83 ′ and the leg 82 at the lower end of the sheet metal profile 81 'is bent downward at the lower end of the guide device 102 along a bending line 82' (FIGS. 16, 18). Thus, the end 45 of the spacer frame 44 received in the groove 96 is steered at the end of the guide device 102 into the height of the upper side of the plate 10. In this way, the free ends 45 of the spacer frame 44 are guided so that they are arranged on both sides of the centering lamella 58 of the transport carriage 50 when the spacer frame 44 has been moved downwards by the carriage 101 so that the lower, horizontal leg of the spacer frame 44 abuts the transport carriage 50 or its contact surfaces 49.

Wie in den Fig. 16 und 18 gezeigt, ist die Zentrierlamelle 58 des Transportschlittens 50 in einem U-Profil 85 angeordnet, welches sicherstellt, daĂź die freien Enden 45 des Abstandhalterrahmens 44 beidseits der Zentrierlamelle 58 angeordnet sind und nicht oberhalb oder unterhalb der derselben zu liegen kommen.As shown in FIGS. 16 and 18, the centering lamella 58 of the transport carriage 50 is arranged in a U-profile 85, which ensures that the free ends 45 of the spacer frame 44 are arranged on both sides of the centering lamella 58 and not above or below it come to lie.

Wie insbesondere Fig. 18 zeigt, sind die Klemmen 52 des Transportschlittens 50 mit Niederhaltefedern 86 ausgestattet, deren freie Schenkel 87 beim Verschwenken der Klemmen 52 den unteren horizontalen Schenkel des Abstandhalterrahmen 44 nach unten in Anlage an den unteren horizontalen Schenkel 88 des U-Profils 85 drĂĽcken.As shown in FIG. 18 in particular, the clamps 52 of the transport carriage 50 are equipped with hold-down springs 86, the free limbs 87 of which, when the clamps 52 are pivoted downward, abut the lower horizontal limb of the spacer frame 44 in contact with the lower horizontal limb 88 of the U-profile 85 to press.

Die Klemmen 52 des Transportschlittens 50 sind bei der in Fig. 16 gezeigten Ausführungsform über Führungsbleche an einer sich parallel zum unteren Rand der Platte 10 der Biegevorrichtung 1 parallel erstreckenden, am Transportschlitten 50 befestigten Führungsschiene 89 geführt, so daß sie bei Betätigung des Druckmittelzylinders 57 im Gegensatz zur in Fig. 5 gezeigten Ausführungsform keine Schwenkbewegung, sondern parallel zu sich selbst aufeinander zu bewegt werden, um die freien Enden 45 der zu einem Abstandhalterrahmen 44 gebogenen Hohlprofilleiste an die Zentrierlamelle 58 anzudrücken.In the embodiment shown in FIG. 16, the clamps 52 of the transport carriage 50 are guided over guide plates on a guide rail 89 which extends parallel to the lower edge of the plate 10 of the bending device 1 and is fastened to the transport carriage 50, so that when the pressure medium cylinder 57 is actuated, In contrast to the embodiment shown in FIG. 5, no swiveling movement, but rather to be moved parallel to one another in order to press the free ends 45 of the hollow profile strip bent into a spacer frame 44 against the centering lamella 58.

Am Rahmen 103 des Schlittens 101 sind zwei Druckmittelmotore 90 befestigt, deren Kolbenstangen 91 eine Klemmbacke 92 tragen. Eine zweite Klemmbacke 93 ist am Rahmen 103 des Schlittens 101 angeordnet. Wie Fig. 19 zeigt, sind die Klemmflächen der Klemmbacken 92 und 93 zur Ebene der Platte 10 geneigt, um die Schrägstellung des Rahmens 44 (Fig. 19) zu berücksichtigen.Two pressure medium motors 90 are attached to the frame 103 of the slide 101, the piston rods 91 of which bear a clamping jaw 92. A second clamping jaw 93 is arranged on the frame 103 of the slide 101. 19 shows, the clamping surfaces of the clamping jaws 92 and 93 are inclined to the plane of the plate 10 in order to take into account the inclined position of the frame 44 (FIG. 19).

Am Rahmen 103 des Schlittens 101 ist noch ein Leitblech 94 vorgesehen, welches den oberen, horizontalen Schenkel 43 des Abstandhalterrahmens 44 sicher zwischen die Klemmbacken 92 und 93 führt, wenn dieser von den Aushebebügeln 95 der Biegeköpfe 12 aus den Biegeköpfen 12 ausgehoben und dem Schlitten 101 übergeben wird. Wie Fig. 19 zeigt, liegt der obere, horizontale Schenkel 43 des Abstandhalterrahmens 44 zunächst auf den Kolbenstangen 91 der Druckmittelmotore 90 auf.A guide plate 94 is also provided on the frame 103 of the slide 101, which guides the upper, horizontal leg 43 of the spacer frame 44 securely between the clamping jaws 92 and 93 when it is lifted out of the bending heads 12 and the slide 101 by the lifting brackets 95 of the bending heads 12 is handed over. 19 shows, the upper, horizontal leg 43 of the spacer frame 44 initially rests on the piston rods 91 of the pressure medium motors 90.

Die anhand der Fig. 16 bis 19 beschriebene Ausführungsform arbeitet grundsätzlich so wie die anhand der Fig. 1 bis 15 beschriebene Ausführungsform, jedoch mit folgenden Unterschieden :The embodiment described with reference to FIGS. 16 to 19 basically works like the embodiment described with reference to FIGS. 1 to 15, but with the following differences:

Nachdem eine Hohlprofilleiste von den Biegeköpfen 12 zu einem Abstandhalterrahmen 44 gebogen worden ist, öffnen sich die Klemmen der Biegeköpfe 12 und deren Auswerferbügel 95 heben den oberen, horizontalen Schenkel 43 des Abstandhalterrahmens 44 an und dieser gleitet entlang der Auswerferbügel 95 nach unten bis er auf die Kolbenstangen 91 des Schlittens 101 fällt. Während dieser Tätigkeit sind die freien Enden 45 des Abstandhalterrahmens 44 in den Nuten 96 und 97 der Leiteinrichtung 102 aufgenommen.After a hollow profile strip has been bent by the bending heads 12 to form a spacer frame 44, the clamps of the bending heads 12 open and their ejector bracket 95 raise the upper, horizontal leg 43 of the spacer frame 44 and this slides along the ejector bracket 95 downward until it reaches the Piston rods 91 of the carriage 101 falls. During this activity, the free ends 45 of the spacer frame 44 are received in the grooves 96 and 97 of the guide device 102.

Nun wird die Klemmbacke 92 durch Betätigen der Druckmittelmotore 90 auf die fixe Klemmbacke 93 zubewegt und der obere, horizontale Schenkel 43 des Abstandhalterrahmens 44 geklemmt. Durch einen nicht näher gezeigten Antrieb, z.B. einen Endloskettenzug od. dgl., wird nun der Schlitten 101 unter Mitnahme des Abstandhalterahmens 44 entlang der Platte 10 nach unten bewegt, bis der untere, horizontale Schenkel des Abstandhalterrahmens 44 beim Transportschlitten 50 anlangt. Nun werden die Klemmen 52 des Transportschlittens 50 von ihren Druckmittelzylindern 55 betätigt, wobei die freien Schenkel 87 der Niederdrückfedern 86 die freien Enden 45 des Abstandhalterrahmens 44, die von den Nuten 96 und 97 so geführt worden sind, daß sie beidseits der Zentrierlamelle 58 liegen, gegen den Schenkel 88 des Profils 85 gedrückt werden. Nachdem die Klemmen 52 den Abstandhalterrahmen 44 am Transportschlitten 50 fixiert haben, wird die aus den Klemmbacken 92 und 93 bestehende Klemme des Schlittens 101 geöffnet und der Rahmen 106 durch Betätigen des Druckmittelmotors 108 um seine Achse 107 verschwenkt, bis sowohl die Leiteinrichtung 102 als auch der Schlitten 101 unterhalb der Platte 10 angeordnet sind.Now the clamping jaw 92 is moved towards the fixed clamping jaw 93 by actuating the pressure medium motors 90 and the upper, horizontal leg 43 of the spacer frame 44 is clamped. By means of a drive (not shown in more detail), for example an endless chain hoist or the like, the carriage 101 is now moved downward along the plate 10, taking the spacer frame 44 with it, until the lower, horizontal leg of the spacer frame 44 arrives at the transport carriage 50. Now the clamps 52 of the transport carriage 50 are actuated by their pressure medium cylinders 55, the free legs 87 of the pressure springs 86 being the free ends 45 of the spacer frame 44, which are formed by the grooves 96 and 97 have been guided so that they are on both sides of the centering lamella 58, are pressed against the leg 88 of the profile 85. After the clamps 52 have fixed the spacer frame 44 to the transport carriage 50, the clamp of the carriage 101 consisting of the clamping jaws 92 and 93 is opened and the frame 106 is pivoted about its axis 107 by actuating the pressure medium motor 108 until both the guide device 102 and the Carriage 101 are arranged below the plate 10.

Nun wird der Transportschlitten 50 in Bewegung gesetzt, wobei während seiner Bewegung noch der Druckmittelmotor 57 betätigt wird, um die Klemmen 52 einander anzunähem, damit die freien Enden 45 des Abstandhalterrahmens 44 von beiden Seiten her an der Zentrierlamelle 58 des Transportschlittens 50 anliegen. Sobald der Abstandhalterrahmen 44 vom Transportschlitten 50 aus dem Bereich des Schlitzes 100 wegbewegt worden ist, wird die Leiteinrichtung 102 und der Schlitten 101 wieder angehoben und der Schlitten 101 zum oberen Rand der Platte 10 hin bewegt, so daß er für die Übernahme des nächsten Abstandhalterrahmens 44 bereit ist.Now the transport carriage 50 is set in motion, the pressure medium motor 57 still being actuated during its movement in order to sew the clamps 52 together so that the free ends 45 of the spacer frame 44 abut the centering lamella 58 of the transport carriage 50 from both sides. As soon as the spacer frame 44 has been moved away from the area of the slot 100 by the transport carriage 50, the guide device 102 and the carriage 101 are raised again and the carriage 101 is moved towards the upper edge of the plate 10 so that it takes over the next spacer frame 44 ready.

Claims (49)

  1. Device (1) for fabricating spacer frames (44) for insulating glass by multiple bending of a hollow profiled strip, with two bending heads (12) movably arranged along the top edge of a plate (10) inclined to the horizontal, between which is provided a clamp (13) for the hollow profiled strip to be bent into the spacer frame, characterized in that there is provided, symmetrically with respect to the clamp (13), a gripper (30) for transferring into the clamp (13) and into the bending heads (12) hollow profiled strips from a conveyor device (20) for supplying hollow profiled strips, which conveyor device (20) extends parallel to the edge of the plate (10) on which the bending heads (12) are arranged, in that a transfer device (60) is arranged on the edge of the plate (10) opposite to the bending heads (12), which transfer device can pivot relative to the plate (10) in order to transfer spacer frames (44) from the bending device (1) to a device (5) for welding the free ends of the hollow profiled strip bent into a spacer frame (44), in that the axis (64) about which the transfer device (60) can pivot is arranged in the region of the welding device (5), in that a transport carriage (50) for spacer frames (44) is provided on the lower edge of the plate (10) opposite to the bending heads (12), which carriage is movable along guide rails arranged along this edge of the plate (10) from a starting position opposite the bending heads (12) to the transfer device (60), in that at least two clamps (52) are provided on the transport carriage (50), which clamps hold the lower horizontal section of a spacer frame (44) on the transport carriage (50), in that a centring plate (58) is provided on the transport carriage (50), on which plate bear the free ends (45) of a spacer frame (44) fixed on the transport carriage (50), in that the transfer device (60) has a frame (63) pivotal about the horizontal axis (64), on which frame are provided bars (65), on which the upper horizontal side (43) of a spacer frame (44) bears, and in that clamps (67 and 68) are provided on the transfer device (60) for holding the spacer frame (44).
  2. Device according to claim 1, characterized in that the hollow profiled strips are supplied on the conveyor device (20) lying on their side later forming the outer side of the spacer frame (44).
  3. Device according to claim 1 or 2, characterized in that the gripper (30) deposits the hollow profiled strips into the bending heads (12) with rotation about an axis aligned with the longitudinal extent of the hollow profiled strips.
  4. Device according to any of claims 1 to 3, characterized in that the conveyor device (20) has an endless conveyor member (21) on the infeed side and is formed as a slideway (22) after the gripper.
  5. Device according to claim 4, characterized in that freely rotatable pressure rollers (23), which bear from above on the hollow profiled strips, are provided above the endless conveyor member (21) of the conveyor device (20).
  6. Device according to claim 5, characterized in that the axles (24) carrying the pressure rollers (23) are mounted on a common shaft (25), which can be turned about an axis parallel to the conveyor device to raise the pressure rollers (23).
  7. Device according to claim 5 or 6, characterized in that the axles (24) of the pressure rollers (23) run at an angle to the conveying direction, so that a forwardly fed hollow profiled strip is steered into abutment with a guide bar (29) bounding the endless conveyor member (21) on the plate side.
  8. Device according to claim 3, characterized in that the axis (33) about which the gripper (30) can be pivoted is arranged beneath the conveyor device (20) and is aligned parallel to the conveying direction.
  9. Device according to any of claims 1 to 8, characterized in that the gripper (30) has two jaws (34, 35), one jaw (35) being arranged below the conveyor plane in the starting position of the gripper (30) associated with the conveyor device (20), and the other jaw (34) being arranged above the conveyor plane.
  10. Device according to any of claims 1 to 9, characterized in that the jaws (34, 35) of the gripper (30) each have two tines, which are arranged on the two sides of the clamp (13) in the transfer position of the gripper (30) associated with the clamp (13).
  11. Device according to any of claims 1 to 10, characterized in that flexible cover strips (14) are fixed on both sides of the carriages carrying the bending heads (12), which strips cover the slots in the plate (10) in which the bending heads (12) are movable to and fro and form a support for hollow profiled strips transferred from the gripper (30).
  12. Device according to claim 11, characterized in that each of the flexible cover strips (14) is guided round direction changing rollers (15) rotatable about two axes aligned parallel to plane of the plate (10).
  13. Device according to claim 11 or 12, characterized in that the flexible cover strips (14) are textile strips.
  14. Device according to any of claims 1 to 13, characterized in that a guide surface (37) is provided between the conveyor device (20) and the upper region of the plate (10) or the flexible cover strips (14) attached to the bending heads (12), for the sections extending to the two sides of the gripper (30) of the hollow profiled strip gripped thereby.
  15. Device according to any of claims 1 to 14, characterized in that a measuring device, for example an incremental transducer associated with the drive for the endless conveyor belt (21), is provided to determine the size of the stroke of the conveyor device (20), which measuring device is initiated by a light beam provided on the in-feed side adjacent the clamp of the gripper (30) and which stops the drive of the conveyor device (20) at the end of a predetermined length of the hollow profiled strip, when the hollow profiled strip is aligned symmetrically relative to the gripper (30) and the clamp (13).
  16. Device according to any of claims 1 to 15, characterized in that a conveyor means (41, 42; 101) is provided for the transport of spacer frames (44) lifted out of the bending heads (12) after completion of the bending operation to the transport carriage (50), the conveyor means feeding the spacer frames along the plate (10).
  17. Device according to claim 16, characterized in that the conveyor means is an endless chain (41) or the like, which is fitted over half of its length with lugs (42) projecting through a slot (40) in the plate (10).
  18. Device according to claim 17, characterized in that the lugs (42) are fixed to the chain (41) overlapping one another.
  19. Device according to claim 17 or 18, characterized in that the upper horizontal section (43) of a spacer frame (44) bears on the uppermost lug (42) of the chain (41) adjacent the bending heads (12) and in that the free ends (45) of the hollow profiled strips bear on the two sides of the lugs (42) in a lower lying region.
  20. Device according to any of claims 1 to 19, characterized in that the clamps (52) of the transport carriage (50) are movable relative to one another.
  21. Device according to claim 20, characterized in that the clamps (52) on the transport carriage (50) are movable towards and away from one another under the action of a pressure-medium motor (57) or the like about axes (65) aligned parallel to the plate (10).
  22. Device according to claim 20, characterized in that the clamps (52) are slidable to and fro parallel to themselves on a guide bar (89) fixed on the transport carriage (50).
  23. Device according to any of claims 1 to 22, characterized in that the clamps (52) are formed as hooks (53), which are received in rotatable sliding bearings (54) and whose free ends are coupled to pressure-medium motors (55) supported on the transport carriage (50).
  24. Device according to any of claims 1 to 23, characterized in that the clamps (52) of the transport carriage (50) are fitted with press-down springs (86), for example of hair clip form, the free limbs (87) of which come into abutment with the lower horizontal side of a spacer frame (44) on pivoting the clamps (52) and press this side on to the flange (88), arranged at the level of the upper side of the plate (10), of a U-section profiled bar (85) provided on both sides of the centring plate (58).
  25. Device according to any of claims 1 to 23, characterized in that the clamps (67 and 68) for holding a spacer frame (44) are fixed to a beam (66) aligned parallel to the pivotal axis (64) of the transfer device (60).
  26. Device according to claim 25, characterized in that the beam (66) can be raised and lowered relative to the frame (63) of the transfer device (60) and can move towards and away from the pivotal axis (64).
  27. Device according to claim 26, characterized in that the beam (66) is pivotally mounted by arms (75) about an axis (74) parallel to the pivotal axis (64) of the transfer device (60) and in that the pivotal axis (74) for the beam (66) is for its part mounted through links (77) on a shaft (78) which is rotatable for raising and lowering the beam (66).
  28. Device according to any of claims 1 to 27, characterized in that there are provided one clamp pair (67) in the middle region of the beam (66) and a further clamp pair (68) at the two ends of the beam (66).
  29. Device according to claim 28, characterized in that the outer clamp pair (68) has jaws (72) engaging on the inner surface and the outer surface resperctively of a spacer frame (44).
  30. Device according to claim 28 or 29, characterized in that the inner clamp pair (67) has jaws (69, 71) engaging on the side surfaces of a spacer frame (44).
  31. Device according to any of claims 28 to 30, characterized in that the one jaw (71) of the inner clamps (67) is rigidly fixed on the beam (66) and in that the movable jaws (69) of these clamps (67) are movable forwards and back perpendicular to the longitudinal extent of the beam (66).
  32. Device according to claim 29, characterized in that the outer clamps (68) each have two jaws (72), preferably provided with rubber layers, which are both movable.
  33. Device according to any of claims 1 to 32, characterized in that a slot (61) is provided in the plate (10) in the region of movement of the transport carriage (50), in which there is provided a transport belt (62) for supporting the transport of spacer frames (44) by the transport carriage (50).
  34. Device according to claim 33, characterized in that the transport belt (62) can be retracted from a transport position projecting beyond the surface of the plate (10) into a rest position sunk below the plate (10).
  35. Device according to any of claims 1 to 34, characterized in that bearing surfaces (49) are provided on the transport carriage (50) on both sides of the clamps (52) for the lower horizontal section of a spacer frame (44).
  36. Device according to claim 35, characterized in that recesses are provided in the bearing surfaces (49) of the transport carriage (50) for the outer clamps (68) on the beam (66) of the transfer device (60).
  37. Device according to any of claims 1 to 36, characterized in that the transfer device (60) is arranged laterally offset relative to the clamp (13) on the edge of the plate (10) opposite to the clamp (13).
  38. Device according to claim 16 and any of claims 20 to 37, characterized in that the conveyor means is a carriage (101) with at least one clamp (92, 93) adapted to engage a spacer frame (44), which carriage is movably guided in the plate (10) along a track (105) parallel to the plane of the plate (10) and perpendicular to the direction of movement of the bending heads (12).
  39. Device according to claim 38, characterized in that the clamp of the carriage (101) has two strip-form jaws (92, 93) which are arranged spaced above the plate (10) of the bending device (1).
  40. Device according to claim 39, characterized in that the clamping faces of the jaws (92, 93) include an acute angle with the plane of the plate (10).
  41. Device according to claim 39 or 40, characterized in that the one jaw (93) is rigidly mounted on the frame (103) of the carriage (101), while the second jaw (92) is connected to the piston rods (91) of pressure-medium cylinders (90), and in that the piston rods (91) form a support for the upper horizontal arm (43) of a spacer frame (44).
  42. Device according to any of claims 1 to 41, characterized in that a guide device (102) is provided for the free ends (45) of a hollow profiled strip bent into a spacer frame (44) which extends from the edge of the plate (10) adjacent to the bending heads (12) to the opposite edge of the same, and in that the guide device (102) has longitudinal channels (96, 97) in which the free ends (45) of a spacer frame (44) are guided.
  43. Device according to claim 42, characterized in that the channels (96 and 97) of the guide device (102) have different heights relative to the plate (10).
  44. Device according to claim 42 or 43, characterized in that the bottoms (83 and 84) of the channels (96 and 97) are arranged offset relative to each other at the upper end of the guide device (102), so that the free ends (45) of a spacer frame (44) received in the channels (96 and 97) can overlap one another and in that the bottoms (83 and 84) of the channels are aligned with one another at the end of the guide device (102) opposite to the bending heads (12).
  45. Device according to claim 44, characterized in that the bottoms (83 and 84) of the channels (96 and 97) of the guide device (102) at the end of the same opposite the bending heads (12) are aligned with the centring plate (58) of the transport carriage (50).
  46. Device according to any of claims 42 to 45, characterized in that the guide device (102) consists of sheet metal sections (81, 81').
  47. Device according to claim 46, characterized in that the sheet metal section (81') which forms the upper channel (96) is bent into substantially U-shape to form the channel (96) and in that its flange (82) is inclined away from the upper side of the plate (10), running obliquely upwards.
  48. Device according to any of claims 38 to 47, characterized in that the carriage (101) and the guide device (102) are mounted for lowering below the plate (10) from their position projecting beyond the plate (10).
  49. Device according to claim 48, characterized in that the guide device (102) and the carriage (101) or their guide rods (104) are fixed on an auxiliary frame (106), which can pivot about an axis (107) directed parallel to the slot (100) in the plate (10), for lowering the guide device (102) and the carriage (101).
EP88890117A 1987-05-11 1988-05-09 Device for fabricating spacing frames for insulating glass panes Expired - Lifetime EP0291499B2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AT118387A AT390434B (en) 1987-05-11 1987-05-11 DEVICE FOR PRODUCING SPACER FRAME FOR INSULATING GLASS
AT0118287A AT391821B (en) 1987-05-11 1987-05-11 DEVICE FOR PRODUCING SPACER FRAME FOR INSULATING GLASS
AT1182/87 1987-05-11
AT1183/87 1987-05-11
AT1256/87 1987-05-18
AT125687A AT392027B (en) 1987-05-18 1987-05-18 DEVICE FOR PRODUCING SPACER FRAME FOR INSULATING GLASS

Publications (4)

Publication Number Publication Date
EP0291499A2 EP0291499A2 (en) 1988-11-17
EP0291499A3 EP0291499A3 (en) 1989-12-27
EP0291499B1 EP0291499B1 (en) 1991-07-10
EP0291499B2 true EP0291499B2 (en) 1997-01-29

Family

ID=27147204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88890117A Expired - Lifetime EP0291499B2 (en) 1987-05-11 1988-05-09 Device for fabricating spacing frames for insulating glass panes

Country Status (4)

Country Link
EP (1) EP0291499B2 (en)
AT (1) ATE65110T1 (en)
DE (1) DE3863583D1 (en)
ES (1) ES2023511T5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100033134A1 (en) * 2021-12-30 2023-06-30 Graf Synergy Srl PROCEDURE AND SYSTEM FOR THE PRODUCTION OF REINFORCEMENT BARS FOR DOOR AND WINDOW PROFILES

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401242B (en) * 1992-07-16 1996-07-25 Lisec Peter Apparatus for producing spacer frames for panes of insulating glass from hollow sectional strips
AT401243B (en) * 1992-07-16 1996-07-25 Lisec Peter Apparatus for producing spacer frames for panes of insulating glass from hollow sectional strips
ATE146388T1 (en) * 1992-07-16 1997-01-15 Peter Lisec DEVICE FOR PRODUCING SPACER FRAMES FOR INSULATING GLASS PANELS FROM HOLLOW PROFILE STRIPS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660398A5 (en) * 1982-01-21 1987-04-15 Peter Lisec SPACER FRAME FOR INSULATING GLASS PANELS AND METHOD FOR PRODUCING THE SAME AND DEVICE FOR IMPLEMENTING THE METHOD.
AT391821B (en) * 1987-05-11 1990-12-10 Lisec Peter DEVICE FOR PRODUCING SPACER FRAME FOR INSULATING GLASS
AT390434B (en) * 1987-05-11 1990-05-10 Lisec Peter DEVICE FOR PRODUCING SPACER FRAME FOR INSULATING GLASS
AT392027B (en) * 1987-05-18 1991-01-10 Lisec Peter DEVICE FOR PRODUCING SPACER FRAME FOR INSULATING GLASS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100033134A1 (en) * 2021-12-30 2023-06-30 Graf Synergy Srl PROCEDURE AND SYSTEM FOR THE PRODUCTION OF REINFORCEMENT BARS FOR DOOR AND WINDOW PROFILES
WO2023126746A1 (en) * 2021-12-30 2023-07-06 Graf Synergy S.R.L. Process and plant for the manufacture of reinforcing bars for profiled elements for window/door frames

Also Published As

Publication number Publication date
EP0291499B1 (en) 1991-07-10
ES2023511T5 (en) 1997-05-16
EP0291499A3 (en) 1989-12-27
EP0291499A2 (en) 1988-11-17
ATE65110T1 (en) 1991-07-15
ES2023511B3 (en) 1992-01-16
DE3863583D1 (en) 1991-08-14

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