EP0249946B2 - Procédé et dispositif pour la fabrication d'un cadre d'espacement pour vitres isolantes - Google Patents

Procédé et dispositif pour la fabrication d'un cadre d'espacement pour vitres isolantes Download PDF

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Publication number
EP0249946B2
EP0249946B2 EP87108655A EP87108655A EP0249946B2 EP 0249946 B2 EP0249946 B2 EP 0249946B2 EP 87108655 A EP87108655 A EP 87108655A EP 87108655 A EP87108655 A EP 87108655A EP 0249946 B2 EP0249946 B2 EP 0249946B2
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EP
European Patent Office
Prior art keywords
frame
bending
closing tool
bending plane
tubular bar
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
EP87108655A
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German (de)
English (en)
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EP0249946B1 (fr
EP0249946A2 (fr
EP0249946A3 (en
Inventor
Karl Lenhardt
Uwe Bogner
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Individual
Original Assignee
Individual
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Application filed by Individual filed Critical Individual
Priority to AT87108655T priority Critical patent/ATE50617T1/de
Publication of EP0249946A2 publication Critical patent/EP0249946A2/fr
Publication of EP0249946A3 publication Critical patent/EP0249946A3/de
Publication of EP0249946B1 publication Critical patent/EP0249946B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/74—Making other particular articles frames for openings, e.g. for windows, doors, handbags
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67304—Preparing rigid spacer members before assembly
    • E06B3/67308—Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313—Making spacer frames, e.g. by bending or assembling straight sections by bending
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49927—Hollow body is axially joined cup or tube
    • Y10T29/49929—Joined to rod
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5191—Assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5199—Work on tubes

Definitions

  • the invention relates to a method and a device for producing a spacer frame for insulating glass with the features specified in the preamble of claim 1 and in the preamble of claim 6.
  • Such a method and such a device are known from DE-PS-3 223 881.
  • the known device has a plate inclined by 10 ° to 15 °, on the upper edge of which two bending tools which can be displaced along this edge and a holder for the hollow profile rod to be bent are provided.
  • the holder is located between the bending tools and includes a few support angles on which the hollow profile bar can be placed, and a pair of clamping jaws for fixing the hollow profile rod.
  • the bending tools essentially consist of an abutment which guides and supports the hollow profile rod and of a cooperating pressure roller actuated by a toggle lever arrangement, which acts on the hollow profile rod and bends it around a bending edge of the abutment.
  • the swivel axis of the pressure roller runs at right angles to the plate, the top of which coincides with the bending plane; during the bending process, the bent legs slide over the plate that supports them.
  • the two bending tools are used at the same time: First, by simultaneously bending at two bending points, the hollow profile bar is formed into a U, and then the hollow profile bar is bent twice so that a rectangular frame is created, the third and fourth bending point between the first and second Bending point. Accordingly, the two bending tools are moved towards each other between the two double bending processes.
  • the semi-finished spacer frame is lifted out of the bending tools and the holder located between them by a mechanical ejector after the bending processes and slides down along the plate. There it is picked up by hand and closed by inserting a rod-shaped connecting element into the two free ends of the hollow profile strips and fed to its further use.
  • a disadvantage of the known device is that it only allows the bending processes to be carried out automatically, but the frames must be closed by hand or can only be carried out after being transferred by hand to a separate locking device, but in any case takes place outside the bending device.
  • a further disadvantage is that the two free ends of the bent but not yet closed spacer frame spring back elastically after loosening the bending tools, so that the two frame legs, on which the free ends of the hollow profile strip are located, no longer align, but form an angle with one another . As a result, there is a constant tension in the spacer frame after it is closed.
  • the angled position which the free ends of the hollow profile rod assume after the bending tools have been released is a very unfavorable prerequisite for the desired automatic closing of the spacer frame.
  • the invention has for its object to provide a method which is particularly suitable for the automatic bending and closing of spacer frames in one and the same device. Furthermore, such a device for performing this method is to be specified, which largely eliminates manual tasks.
  • the two ends of the hollow profile rod are guided by deflecting one or both ends from the bending plane, preferably in the course of the last bending process, into a position in which they lie laterally offset next to one another.
  • This makes it possible to overbend the hollow profile rod at the intended bending points to compensate for an elastic spring back of the bent hollow profile rod to such an extent that all four corner angles of the spacer frame after the elastic spring back are exactly 90 ° without the two free ends of the spacer frame therefore being last bending process and collide when springing back. If, as usual, the two ends of the hollow profile rod were only guided in the bending plane during the bending process, they would meet and possibly deform undesirably.
  • the effect of a lateral offset of the ends of the hollow profile rod is particularly advantageous if, from the beginning of the bending process, a connector is inserted in one of the two ends of the hollow profile rod, with which the finished bent spacer frame is finally closed by the protruding end of the connector is also inserted into the opposite end of the hollow profile rod. Because of the outstanding connector, it would not be possible without a lateral offset to bend the hollow profile rod by a full 90 ° during the last bending process, let alone to bend it beyond 90 °.
  • the lateral offset of the two ends of the hollow profile rod is only required at the end of the last bending process, it is preferably also produced only in the last phase of the last bending process. In this way, even if spacer frames of different sizes follow one another, the easiest way to achieve a consistently large lateral offset, and in the phases of the bending process preceding the deflection of one end, one can in the bending plane for the relatively unstable hollow profile bars by one with the bending plane collapsing support wall realize a lateral guide that prevents unwanted flutter of the hollow profile bars during the bending processes.
  • the device according to the invention has a horizontally or inclined support wall, which can be formed by one or more plates.
  • the plates can have recesses.
  • a holder for the hollow profile bars to be bent At the edge of the support wall there is a holder for the hollow profile bars to be bent.
  • this bracket it can be, for. B. can be a contact strip or a series of contact fingers to which the hollow profile bars are individually applied by hand or by a machine insertion device prior to bending.
  • the holder further expediently comprises an end stop which can be displaced along the holder for positioning the hollow profile bars in their longitudinal direction and a clamping device for clamping the hollow profile bars positioned in this way.
  • the support wall serves to support the hollow profile bars during the bending process.
  • the bending tools are therefore arranged relative to the supporting wall in such a way that the bending plane (this is the plane in which the bent legs of the hollow profile rod move during the bending process) coincides with the top of the supporting wall.
  • the holder for the hollow profile bars is preferably arranged along its lower edge.
  • the holder could also be arranged elsewhere, in particular along the upper edge of the support wall, as described in DE-PS-3 223 881; the arrangement of the holder along the lower edge of the support wall, however, facilitates automatic removal of the spacer frame from the device (development of the invention according to claim 12).
  • the device has at least one, preferably two, bending tools. With only one tool, the four corners of the spacer frame are bent successively and the bending tool must be longitudinally displaceable along the holder of the hollow profile rod or the hollow profile rod, for example by means of the abovementioned stop, in order to bring the bending tool to the intended bending points of the hollow profile rod can.
  • two bending tools these are expediently allowed to work simultaneously by first forming the hollow profile strip into a U by bending twice, then bringing the two bending tools closer to one another (for which at least one must be arranged displaceably, but preferably both can be moved along the holder ) and then bends the hollow profile again twice, so that a rectangular spacer frame is created, which can then be closed by connecting its two ends.
  • a frame locking tool is provided according to the invention which can be displaced parallel to the supporting wall and thereby changed in its distance from the holder and the bending tools, which has means for deflecting one end of the hollow professional rod from the bending plane while the two ends of the hollow profile rod are approaching each other.
  • the hollow profile bar can be bent to compensate for the elastic springback so that the two free legs of the finished bent spacer frame after loosening the bending tools i. w. lie parallel to each other.
  • the means for deflecting the hollow profile rod end are arranged in the frame closing tool means that the hollow profile rod end in question is deflected only in the last phase of the last bending process affecting it, so that, moreover, the supporting wall provided for guiding and supporting the frame legs pivoted during bending can also perform their support and management functions.
  • the distance of the frame closing tool from the holder for the hollow profile rods provided on the supporting wall can be changed by moving the frame closing tool parallel to the supporting wall; the displacement is advantageously carried out at right angles to the bracket mentioned or to the edge of the support wall on which this bracket is located. If two bending tools are provided, their connecting line runs perpendicular to the path of movement of the frame closing tool, the two bending tools being on different sides of the path of movement of the frame closing tool, preferably maintaining the same distances from one another.
  • the frame closing tool is moved into the appropriate spacing position before or during the bending of a spacer frame. After completing the bending processes, the two legs of the spacer frame to be connected to one another lie with the provided lateral offset in a common plane parallel to the mounting of the hollow profile bars.
  • the frame closing tool is best equipped with one or more stops, against which the frame legs to be connected lie against the inside of the frame after completing the bending processes (the inside of the frame is understood to mean the side that points into the interior of the curved frame). These stops are a means for positioning the ends of the hollow profile rod, which takes place before these ends are connected to each other.
  • a deflector which can be retracted behind the bending plane, is preferably provided on the frame closing tool, with a sliding surface onto which the relevant frame leg slides during the bending process; the sliding surface is oriented obliquely to the bending plane in such a way that it lifts the sliding frame leg from the supporting wall in the course of its sliding movement and thus deflects it out of the bending plane.
  • the other free end of the hollow profile rod does not require any deflection, rather it should be supported and guided through the supporting wall during the entire bending process.
  • a guide with a sliding surface is preferably provided for the second end of the hollow profile rod on the closing tool, onto which the relevant frame leg slides during the bending process; the guide's sliding surface is oriented obliquely to the bending plane in such a way that it guides the sliding frame leg against the supporting wall.
  • the guide and the deflector as well as the stops on the frame closing tool which limit the pivoting movement of the free frame legs force together a predetermined position of the two ends of the hollow profile rod at the end of the bending processes.
  • the closing tool is equipped with a positioning device which transfers the ends of the hollow profile bar into a position in which they lie opposite one another in alignment.
  • a positioning device which transfers the ends of the hollow profile bar into a position in which they lie opposite one another in alignment.
  • two distance-adjustable end stops for the two ends of the hollow profile rod are preferably provided on the closing tool. It is best to form the two end stops on the deflector and on or next to the deflector, in such a way that the two end stops face each other and the end stop for the first end of the hollow profile rod on or next to the deflector for the second end and the End stop for the second end is formed on the guide for the first end of the hollow profile rod.
  • the not yet closed spacer frame can be spread, the hold-down rollers preferably provided preventing the two ends from pivoting.
  • the two ends of the not yet closed spacer frame are spread until they no longer overlap; the spacer frame is closed by a plug connector which is inserted into one of the ends of the hollow profile rod before the bending processes begin; The spacer frame must be spread until there is no longer any overlap even with the inserted connector.
  • the two ends are now in a position in which they can be moved laterally into a position in which they face each other in alignment.
  • the deflector can be moved back into an ineffective position lying behind the bending plane; the deflection of one hollow profile rod end that is forced during bending can now be reversed.
  • a plunger could be provided for this purpose. However, this is preferably done by closing a gripper which has a first clamping jaw coinciding with the bending plane and a second clamping jaw which can be moved from the front against the bending plane and which presses and clamps the frame leg deflected up to that point from the bending plane against the first clamping jaw.
  • a further gripper is provided, which likewise has a first clamping jaw, the clamping surface of which coincides with the bending plane, and a second clamping jaw, which can be moved from a position in front of the support wall against the first clamping jaw.
  • the movable clamping jaw when viewed from the closing tool against the edge of the support wall on which the bending tools are located, is arranged behind the guide, so that the guide instructs the relevant frame leg in the gripper.
  • the movable jaws it can z. B. act on the guide himself, which is movable and with a corresponding, parallel to the support wall clamping surface.
  • the two grippers have firmly gripped the two free frame legs, they are moved towards one another, the piece of the connector protruding from one end of the hollow profile rod being inserted into the other end of the hollow profile rod.
  • the latter is advantageously notched over a recess provided in the connector.
  • a notching tool is preferably provided on the closing tool between the grippers and can be pivoted out of an ineffective end position lying behind the bending plane against the hollow profile rod held by the grippers.
  • the finished spacer frame can be removed from the device after opening the two grippers and after swiveling up the hold-down rollers that are preferably provided.
  • the removal could be done by hand.
  • the removal is preferably carried out mechanically;
  • the frame closing tool according to the invention has the advantage that it can be easily designed as a transfer tool for transferring the spacer frame to a conveyor which conveys the spacer frame out of the device.
  • the necessary further development of the device according to the invention is expediently carried out in an embodiment in which the support wall is inclined, in particular only a few degrees from the vertical, and the holder for the hollow profile bar to be bent and the bending tools are located at the lower edge of the support wall.
  • the conveyor on the opposite, that is to say at the upper edge of the support wall and to form it as an overhead conveyor which conveys the spacer frames in a hanging manner. Since the closing tool can be moved up and down to change its distance from the lower edge of the support wall, all you have to do is make the path of movement of the closing tool so long that it can be moved into the area of action of the overhead conveyor, where in a predetermined end position of the closing tool The spacer frame is transferred to the overhead conveyor.
  • the closing tool could in principle be arranged in front of the support wall, but the movement path of the closing tool preferably runs in a cutout of the support wall that runs from bottom to top, so that the locking tool only partially protrudes into the area in front of the support wall, as a result of which the spacer frames can be conveyed unhindered is easier possible. It is best if the movement path of the closing tool is not arranged in a stationary manner, but rather is designed to be movable, so that it and the closing tool can be moved behind the bending plane.
  • the overhead conveyor conveniently has hooks as a supporting element for the spacer frames, into which hooks the spacer frames are hung.
  • the hooks are preferably suspended with their tips swinging directly in front of the bending plane.
  • the advantage of such hooks is that they are deflected by the upper leg of the spacer frame that moves up with the locking tool and then pivot automatically under the upper frame leg. The frame locking tool can then be lowered, placing the spacer frame on the hook.
  • the device has a base frame 1 and on the rear side a centrally arranged column 2 rigidly connected thereto.
  • the base frame 1 has a support wall 3 formed by two plates, which is arranged inclined a few degrees backwards from the vertical and with its front side the bending plane 5 of the device defined.
  • a holder 4 with a support surface 6 running at right angles to the bending plane 5 is provided.
  • the holder 4 is used for receiving hollow profile bars 7, which are to be bent to form spacer frames, and for guiding the hollow profile bars to two bending tools 8 and 9, which are arranged horizontally displaceably along the lower edge of the plates 3 and are mounted on two slides 10 for this purpose .
  • the type and structure of the bending tools are not the subject of the present invention, but rather state of the art and therefore not shown in detail. It can e.g. B. bending tools are used, as described in DE-PS-3 223 881.
  • two bending webs 11 are shown, which can be pivoted up about a little more than 90 ° about axes 12 running at right angles to the bending plane 5 from a horizontal starting position and thereby bend a hollow profile rod lying on the holder 4.
  • the hollow profile bar can be additionally clamped in the middle between the bending tools 8 and 9, for. B. by means of a jaw working from above against the holder 4, which is not shown in the drawing.
  • the swivel angle of the bending cheeks 11 is slightly more than 90 ° in order to be able to compensate for their elastic springback by overbending the hollow profile bars.
  • the two plates 3 are arranged side by side with some distance.
  • two mutually parallel running rails 14 are arranged, which run behind the bending plane 5, parallel to the latter, from bottom to top.
  • a closing tool 15 is mounted movable up and down.
  • the closing tool When bending a spacer frame, the closing tool is moved to such a height that the ends 19 and 20 of the two free legs 17 and 18 of the spacer frame which are to be connected to one another pivot into the closing tool 15.
  • the two bending tools 8 and 9 are therefore arranged on both sides of the cutout 13 for the closing tool 15; the bending tools 8, 9 are preferably arranged and formed in mirror symmetry with respect to the vertical center plane 21 of the closing tool 15. This then leads to the bending points being symmetrical to the center of the hollow profile rod 7 and the two free legs 17 and 18 pivoting into the closing tool 15 being of equal length.
  • the two bending tools 8 and 9 expediently work simultaneously, as was explained in the general description part.
  • the frame closing tool 15 consists essentially of tools for positioning, gripping and connecting the two free legs 17 and 18 of a hollow profile rod and the associated actuating devices, which are accommodated in a housing 22 which has a stem 23 (FIG. 4).
  • a housing 22 which has a stem 23 (FIG. 4).
  • cutouts 25 and 26 are provided above the stem 23, through which various machine elements can be led out of the housing 22 and moved back again.
  • two stops 27 and 27a are provided with a stop surface running at right angles to the bending plane 5 and parallel to the holder 4 at a distance from one another.
  • the stop surfaces of the two stops 27 and 27a are aligned with one another.
  • a guide 28 with a flat sliding surface 29 which faces the bending plane 5 and forms an acute angle ⁇ therewith, the distance between the guide 28 and the bending plane 5 increasing from bottom to top.
  • a deflector 31 which also has a flat sliding surface 32 which, however, in contrast to the sliding surface 29 of the deflector, faces away from the bending plane 5.
  • the sliding surface 32 extends at an acute angle ⁇ to the bending plane 5, the angle ⁇ opening from top to bottom in contrast to the angle ⁇ .
  • the sliding plane 32 is also inclined by an angle ⁇ running in a plane perpendicular to the bending plane 5 and intersecting it in a horizontal line; the acute angle ⁇ opens in the direction of the guide 28.
  • the inclined sliding surface 32 intersects the bending plane 5. From the effective position shown in FIGS. 4 and 5, the deflector 31 can be inserted into the housing by means of a pneumatic cylinder 33 arranged in the housing 22 22 be brought in (swiveled).
  • a vertical stop surface 34 extending perpendicular to the bending plane 5 is formed in front of the side of the deflector 28 adjacent to the deflector 31, and a further stop 35 with a stop surface parallel to the stop surface 34 is provided directly in front of the opposite side of the deflector 31.
  • the stop 35 can be seen in Fig. 5, in Fig. 4 it is covered.
  • a free-running roller 36 is provided, which by means of a Pneumatic cylinder 37 is pivotally mounted about a horizontal axis 38 and can be pivoted out of an inactive position in the housing 22 through the cutout 25.
  • the roller 36 serves as a hold-down device, which can press the one free leg 18 of a spacer frame against the stop 27a, but displacement movements in the longitudinal direction of the leg 18 are still easily possible because of the free-running roller 36.
  • Another roller 39 serving as a hold-down device is provided close to the guide 28.
  • the roller 39 can also be pivoted out of an inactive position in the housing 22 by means of a pneumatic cylinder 40 about a horizontal axis 41. It serves to press the other free leg 17 of the spacer frame against the stop 27.
  • the two stops 27 and 27a are part of two mutually parallel clamping carriages 42 and 43, which can be displaced horizontally in the housing 22 by pneumatic cylinders 85 and 86 to change their mutual distance.
  • the clamping carriage 42 carries the stop 27 on its protruding into the stem 23 forming part of a arranged under the guide 28 clamping jaws 44.
  • the clamping carriage 42 with the clamping jaw 44 can also be approximated to the front housing wall 24 by means of a pneumatic cylinder 46, which takes part in the displacement of the clamping carriage 42 caused by the pneumatic cylinder 85, and can be removed therefrom.
  • the clamping jaws 44 which can be displaced perpendicularly to the bending plane 5 in this way, cooperates with a clamping jaws 47 located opposite it and fixedly arranged in the housing 22.
  • a guide rod 49 which extends perpendicular to the bending plane 5, in an elongated hole 48, which is guided through a slide bearing in the fixed jaw 47 and thus ensures parallel guidance of the movable clamping jaw 44 relative to the fixed clamping jaw 47.
  • the clamping surface of the fixed clamping jaw 47 lies in the working position of the closing tool 15 in the alignment of the bending plane 5.
  • a clamping jaw 50 is formed which, by actuating a pneumatic cylinder 52, which takes part in the displacement of the clamping slide 43 caused by the pneumatic cylinder 86, can be approximated and removed from the front housing wall 24 together with the clamping slide 43 .
  • the clamping jaws 50 which can be displaced perpendicular to the bending plane 5 in this way, works together with a clamping jaw 53 arranged in the region of the front housing wall 24 behind the deflector 31, the clamping surface of which is always in the bending plane 5 and which is accessible after the deflector 31 by actuating its pneumatic cylinder 33 was pivoted into the housing 22.
  • Also provided in the carriage 43 is an elongated hole 54 and in this a guide rod 55 running perpendicular to the bending plane 5, which is guided in a slide bearing formed on the fixed clamping jaws 53.
  • a notching tool 60 is also provided between the two clamping carriages 42 and 43, which for reasons of clarity is not shown in FIGS. 5, 6 and 7, but only as a detail in FIG. 8.
  • the notching tool 60 is located at the tip of a pivot lever 61, whose pivot axis 62 is located at the end of a guide rod 63 running perpendicular to the bending plane 5, which is guided in a guide block 64 and is always moved with the movable clamping jaw 44 as a result of a connection, not shown, with the clamping slide 42, but only by half from its displacement, which ensures that when bending hollow profile bars 7 with varying widths, the notching tool is automatically fed to the center of the hollow profile bar 7.
  • the lever 61 is pivoted by means of a pneumatic cylinder 65 via a further guide rod 66 guided in the same guide block 64, which is connected to the pivotable lever 61 via a link 67.
  • an overhead conveyor 69 is mounted along the upper edge of the two plates 3.
  • the overhead conveyor consists of a horizontal frame 70 which is arranged along the upper edge of the plates 3, is supported thereon and on the central column 2 and projects beyond the outer end of one of the two plates 3.
  • a running rail 71 is formed on the frame 70, which supports an endless roller chain 72, which is deflected and tensioned via toothed wheels 77 to 82 with a vertical axis.
  • One of these gearwheels, for example the gearwheel 82 is driven, at regular intervals bearing blocks 73, in particular those made of plastic, are attached to chain bolts which are extended beyond the upper link plates.
  • a hook 75 is suspended in an oscillating manner in each of these bearing blocks, the oscillating axis 74 being oriented horizontally in the running direction of the chain 72.
  • the hooks 75 are suspended in such a way that their tips 76 abut the plates 3 in the front chain hoist and slide along them.
  • the device works as follows.
  • a hollow protil rod 7 placed on the holder 4 at the lower edge of the plates 3 and preferably clamped there is initially at two outer bending points by the two bending tools 8 and 9 bent by 90 ° and thereby formed into a U.
  • the two bending tools 8 and 9 are moved towards each other and then the hollow section rod 7 is bent again at the two inner bending points by 90 °.
  • the last two corners are bent, which is preferably carried out simultaneously, the two legs 17 and 18 of the spacer frame 16 to be connected pivot with their ends 19 and 20 into the area of action of the closing tool 15 previously moved to the appropriate height.
  • One limb 17 is brought close to the bending plane 5 coinciding with the front of the tarpaulin 3 by the guide 28, provided that it is not already in contact with the supporting wall formed by the tarpaulin.
  • the front housing wall 24 of the closing tool is in alignment with the bending plane 5 or slightly behind during the entire bending process.
  • the clamping carriage 42 is moved towards the clamping carriage 43 and the clamping carriage 43 is simultaneously moved towards the clamping carriage 42.
  • the guide 27 acts with the stop surface formed on it on the end 20 and the stop 35 attached to the clamping slide 43, initially lying next to the deflector 31, on the end of the connector 58, the spacer frame 16 being spread until its end 20 and the connector 58 no longer overlap each other. This position is shown in Fig. 6.
  • the deflector 31 is pivoted into the housing 22 by actuating the pneumatic cylinder 33.
  • the way is now clear to bring the leg 18 of the spacer frame into alignment with the other leg 17. This is done by closing the gripper formed by the jaws 50 and 53 by actuating the pneumatic cylinder 52.
  • the gripper formed by the jaws 44 and 47 is closed by actuating the pneumatic cylinder 46 and clamps the leg 17.
  • the two legs 17 and 18 are now flush with one another.
  • the further protruding end of the connector 58 can be inserted into the one end 20 of the hollow profile rod by further bringing the two clamping slides 42 and 43 closer to one another, thereby closing the spacer frame.
  • only one clamping slide is moved, for example the clamping slide 43, the displacement path of which is expediently chosen to be somewhat larger than the insertion length of the connector 58, so that the connector is pushed in as far as it will go, which is usually provided in its lead.
  • the displacement path of the clamping slide 43 which extends beyond the insertion length manifests itself in a slip which is expediently made possible by the clamping surfaces of the clamping jaws 50 and 53 being made sufficiently smooth.
  • slip is not desired, where it is expediently avoided by corrugating the clamping surfaces.
  • the closing tool 15 can begin as a whole, on the running rails 14 drive up along.
  • the operations of positioning and closing the spacer frame can occur during this trip. Shortly before the closing tool 15 reaches its intended upper end position, the upper side of the spacer frame 16 meets the inclined surfaces 76a of the hooks 75 of the overhead conveyor 69.
  • the hooks 75 automatically avoid the upwardly moving spacer frame 16 and fall when they reach the top 76 the hook has moved past, again against the support wall formed by the tarpaulin 3.
  • the hold-down rollers 36 and 38 can now lift off the spacer frame 16 which has been put together and pivot back into the housing 22.
  • the jaws 44 and 47 and 50 and 53 can open and release the spacer frame 16.
  • the transfer of the spacer frame to the overhead conveyor 69 takes place in that the closing tool 15 is moved down a piece, whereby the hooks 75 lift the spacer frame 16 out of the area of action of the closing tool.
  • a pressure medium cylinder 83 acting in the upper region on the running rails 14 the two running rails are now 14 pivoted so far backwards about a lower horizontal axis 84 that the stem 23 of the closing tool completely disappears behind the bending plane 5.
  • the spacer frame 16 can now be conveyed away without hindrance by the closing tool 15 in the direction parallel to the bending plane 5. As soon as the spacer frame 16 has moved out of the area of the closing tool, it can be swiveled forward again into its working position and moved into the appropriate height position for the next spacer frame to be produced.

Landscapes

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

Claims (17)

  1. Procédé pour la fabrication d'un châssis écartant rectangulaire destiné à du verre isolant, ce procédé consistant
    a) à enfoncer un raccord à enfichage dans une extrémité d'une barre à profil creux;
    b) à plier quatre fois la barre à profil creux dans un plan commun de pliage, un surpliage des montants du châssis s'effectuant au cours du demier processus de pliage et une des extrémités ou les deux extrémités de la barre à profil creux étant déviées en dehors du plan de pliage en formant un décalage latéral;
    c) à écarter la barre à profil creux pliée (châssis) jusqu'à ce que les extrémités du châssis soient disposées en alignement exact l'une par rapport à l'autre;
    d) saisie et positionnement aligné des extrémités du châssis;
    e) liaison des extrémités du châssis par enfoncement du raccord à enfichage dans l'extrémité opposée du châssis,
    toutes les phases précités du procédé étant effectuées mécaniquement et sur la même machine.
  2. Dispositif pour la fabrication d'un chàssis écarteur rectangulaire destiné à du verre isolant, ce procédé consistant à plier en quatre fois une barre à profil creux dans un plan commun de pliage at à relier ces extrémités l'une à l'autre, conformément au procédé selon l'une quelconque des procédés suivantes:
    a) Procédé pour la fabrication d'un tel chàssis écarteur, caractérisé en ce que l'on guide les deux extrémités de la barre à profil creux en déviant une ou les deux extrémités en dehors du plan de pliage, dans un e position telle qu' ils se trouvent décalés latéralement l'un à côte de l'autre, et en ce que l'on saisit alors les extrémités, on les positionne en alignement précis l'une avec l'autre et on les relie l'une à l'autre,
    b) procédé selon a), caractérisé en ce que l'on ne dévie qu'une des deux extrémités,
    c) procédé selon a), caractérisé en ce que l'on dévie la ou les deux extrémités de la barre à profil creux au cours du dernier processus de pliage,
    d) procédé selon c), caractérisé en ce que l'on dévie la ou les deux extrémites de la barre à profil creux, au cours de la dernière phase du dernier processus de pliage,
    e) procédé selon a), caractérisé en ce que l'on relie les extrémités au moyen d'un raccord à enfichage que l'on enfonce dans une extrémité avant d'entamer le processus de pliage et, après le pliage et le positionnement des deux extrémités également dans l'extrémité opposée de la barre à profil creux,
    ce dispositif étant muni d'une paroi d'appui aménagée en position horizontale ou inclinée, sur le bord de laquelle se trouvent une bride de support destinée à une barre à profil creux devant être pliée, ainsi qu'un ou plusieurs instruments de pliage, dont le plan de pliage coincide avec le côté supérieur de la paroi d'appui,
    caractérisé en ce que l'on prévoit un instrument (15) de fermeture de chassis pouvant coulisser parallèlement à paroi d'appui (3) et par ce fait même étant variable au niveau de son écartement par rapport à la bride de support (4) et par rapport aux instruments de pliage (8, 9), cet instrument de fermeture de chassis étant muni d'un moyen (31) destiné à la déviation d'une extrémité (20) de la barre à profil creux (7) en dehors du plan de pliage (5) lorsque les deux extrémités (19, 20) de la barre à profil creux s'approchent l'une de l'autre,
    en ce que l'instrument de fermeture (15) est muni de dispositifs de positionnement (27, 27a; 34, 35; 44, 47; 50, 53) destinés au positionnement des extrémités (19, 20) de la barre à profil creux, de telle sorte que ces extrémités soient disposées en alignement exact l'une par rapport à l'autre,
    et de deux griffes (44, 47; 50, 53) mobiles l'une en direction de l'autre parallèlement au plan de pliage (5), griffes par lesquelles les extrémités (19, 20) ainsi positionnées de la barre à profil creux peuvent se rapprocher l'une de l'autre.
  3. Dispositif selon la revendication 2, caractérisé en ce que l'on prévoit, sur l'instrument de fermeture (15), une ou plusieurs butées (27, 27a) de même hauteur, butées contre lesquelles viennent s'appuyer les montants (17, 18) du châssis devant être reliés l'un à l'autre, avec le côté interne du châssis, au terme du processus de pliage.
  4. Dispositif selon la revendication 3, caractérisé en ce que, sur l'instrument de fermeture (15), on prévoit deux rouleaux de pressage (36, 39) destinés à presser les deux montants de châssis (17, 18) devant être reliés l'un à l'autre, contre le ou les butées (27, 27a), ces rouleaux pouvant pivoter depuis une position terminale de repos se trouvant derrière le plan de pliage (5) contre les montants (17, 18) du châssis disposés contre les butées (27, 27a).
  5. Dispositif selon la revendication 3, caractérisé en ce que l'instrument de fermeture (15) est muni d'un instrument à embrèvement (60) disposés entre les griffes (44, 47 ; 50, 53), cet instrument pouvant pivoter depuis une position terminale de repos se trouvant derrière le plan de pliage (5), contre le ou les butées (27, 27a).
  6. Dispositif selon la revendication 2, caractérisé en ce que, en vue de la déviation d'une extrémité (20) de la barre à profil creux (7), on prévoit un déflecteur (31) muni d'une surface de glissement (32) et pouvant se retirer derrière le plan de pliage (5), surface de glissement sur laquelle glisse le montant de châssis (18), sur lequel se trouve l'extrémité (20) devant être déviée, au cours du processus de pliage, et en ce que la surface de glissement (32) s'étend en biais par rapport au plan de pliage (5) dans une position telle qu'elle soulève le montant (18) du châssis qui coulisse, à l'écart de la paroi d'appui (3).
  7. Dispositif selon la revendication 2, caractérisé en ce que, sur l'instrument de fermeture (15), on prévoit un dispositif de guidage (28) muni d'une surface de glissement (29), surface sur laquelle glisse le montant (17) du châssis, sur lequel se trouve l'autre extrémité (19) de la barre à profil creux (7), au cours du processus de pliage, et en ce que la surface de glissement (29) s'étend en biais par rapport au plan de pliage (5) dans une position telle qu'elle guide le montant (17) du châssis qui glisse, contre la paroi d'appui (3).
  8. Dispositif selon la revendication 2, caractérisé en ce que, sur l'instrument de fermeture (15), on prévoit deux butées terminales (34, 35) à écartement mutuel variable, ces butées étant destinées aux deux extrémités (19, 20) de la barre à profil creux (7).
  9. Dispositif selon les revendications 6, 7 et 8 , caractérisé en ce qu'une des butées terminales (34) est réalisée sur le côté du dispositif de guidage (28) adjacent au déflecteur (31), tandis que l'autre butée terminale (35) est disposée devant le côté du déflecteur (31) adjacent au dispositif de guidage (28).
  10. Dispositif selon la revendication 2, caractérisé en ce que les deux griffes (44, 47 ; 50, 53) sont façonnées en chaque fois deux paires de mâchoires de serrage, chacune de ces mâchoires (47, 53) se trouvant avec sa surface de serrage dans le plan de pliage (5), tandis que la mâchoire (44, 50) qui lui est chaque fois opposée se trouve disposée selon un écartement variable devant le plan de pliage (5).
  11. Dispositif selon les revendications 7, et 10, caractérisé en ce que le dispositif de guidage constitue la mâchoire mobile de serrage ou est monté devant celle-ci, lorsque l'on regarde depuis l'instrument de fermeture (15) en direction de la bride de retenue (4).
  12. Dispositif selon la revendication 2, caractérisé en ce que la paroi d'appui (3) est inclinée et en ce que la bride de retenue (4) destinée à la barre à profil creux (7) devant être pliée est aménagée le long du bord inférieur de la paroi d'appui (3).
    en ce que l'on prévoit, le long du bord opposé de la paroi d'appui (3), un transporteur (69) mis en service au-dessus de la tête, destiné au transport des châssis écarteurs (16) assemblés
    et en ce que la trajectoire (14) de l'instrument de fermeture (15) atteint la hauteur de la trajectoire de transport, afin de transmettre les châssis écarteurs (16) au transporteur (69) mis en service au-dessus de la tête.
  13. Dispositif selon la revendication 12, caractérisé en ce que la trajectoire (14) de l'instrument de fermeture (15) s'étend dans une encoche (13) pratiquée dans la paroi d'appui (3), cette encoche s'étendant de bas en haut.
  14. Dispositif selon la revendication 13, caractérisé en ce que la trajectoire (14) de l'instrument de fermeture (15) peut être déplacée derrière le plan de pliage (5).
  15. Dispositif selon la revendication 12, caractérisé en ce que le transporteur (69) mis en service au-dessus de la tête est muni de crochets (75) suspendus en oscillation, ces crochets faisant office d'élément de support pour les châssis écarteurs (16), crochets dont la pointe (76) vient se disposer contre la paroi d'appui (3).
  16. Dispositif selon la revendication 10, caractérisé en ce que la paroi d'appui (3) n'est inclinée que de quelques degrés par rapport à la verticale.
  17. Dispositif selon la revendication 10 et 14, caractérisé en ce que la trajectoire du transporteur (69) mis en service au-dessus de la tête s'étend parallèlement à la paroi d'appui (3).
EP87108655A 1986-06-19 1987-06-16 Procédé et dispositif pour la fabrication d'un cadre d'espacement pour vitres isolantes Expired - Lifetime EP0249946B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108655T ATE50617T1 (de) 1986-06-19 1987-06-16 Verfahren und vorrichtung zum herstellen eines abstandhalterrahmens fuer isolierglas.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3620531 1986-06-19
DE3620531 1986-06-19

Publications (4)

Publication Number Publication Date
EP0249946A2 EP0249946A2 (fr) 1987-12-23
EP0249946A3 EP0249946A3 (en) 1988-06-08
EP0249946B1 EP0249946B1 (fr) 1990-02-28
EP0249946B2 true EP0249946B2 (fr) 1997-01-29

Family

ID=6303252

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Application Number Title Priority Date Filing Date
EP87108655A Expired - Lifetime EP0249946B2 (fr) 1986-06-19 1987-06-16 Procédé et dispositif pour la fabrication d'un cadre d'espacement pour vitres isolantes

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US (1) US4803764A (fr)
EP (1) EP0249946B2 (fr)
AT (1) ATE50617T1 (fr)
DE (1) DE3761776D1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253683A (en) * 1989-10-23 1993-10-19 Tools For Bending, Inc. Method and apparatus for dispensing desiccant materials into window spacer frames
DE3942808A1 (de) * 1989-12-23 1991-06-27 Bayer Isolierglasfab Kg Verfahren und vorrichtung zum herstellen eines abstandhalter-rahmens
AT397055B (de) * 1990-06-07 1994-01-25 Lisec Peter Verfahren und vorrichtung zum biegen von hohlprofilleisten zu abstandhalterrahmen für isolierglasscheiben
ATE100002T1 (de) * 1990-06-07 1994-01-15 Peter Lisec Verfahren und vorrichtung zum biegen von hohlprofilleisten zu abstandhalterrahmen fuer isolierglasscheiben.
AT398919B (de) * 1992-01-27 1995-02-27 Friedrich Pistauer & Co Verfahren und vorrichtung zur herstellung eines rahmens
DE4402726A1 (de) * 1994-01-29 1995-08-10 Bayer Isolierglasfab Kg Verfahren und Vorrichtung zum Herstellen eines Abstandhalter-Rahmens für Isolierglasscheiben
JP4158338B2 (ja) * 2000-06-06 2008-10-01 株式会社デンソー インジェクタ用圧電体素子
US6606837B2 (en) * 2001-08-28 2003-08-19 Cardinal Ig Methods and devices for simultaneous application of end sealant and sash sealant
US6793971B2 (en) 2001-12-03 2004-09-21 Cardinal Ig Company Methods and devices for manufacturing insulating glass units
US10183363B2 (en) 2015-08-04 2019-01-22 Cardinal Ig Company Spacer formation cell
WO2020070245A1 (fr) 2018-10-04 2020-04-09 Lisec Austria Gmbh Procédé et dispositif de fabrication d'un cadre d'écartement pour verre isolant
US11536083B2 (en) * 2020-05-22 2022-12-27 Cardinal Ig Company Automated spacer processing systems and methods

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US799176A (en) * 1904-04-30 1905-09-12 Webster L Marble Cleaning-rod for firearms.
US2101349A (en) * 1934-04-07 1937-12-07 Commw Trust Company Joining lengths of metal
US3728889A (en) * 1969-07-29 1973-04-24 Itt Crimping device
FR2104668B1 (fr) * 1970-06-16 1974-05-03 Boussois Souchon Neuvesel Sa
US4261145A (en) * 1977-10-04 1981-04-14 Broecking Hans Spacer for double-pane and multiple-pane windows and method and apparatus for making same
CH660398A5 (de) * 1982-01-21 1987-04-15 Peter Lisec Abstandhalterrahmen fuer isolierglasscheiben sowie verfahren zur herstellung desselben und vorrichtung zur durchfuehrung des verfahrens.

Also Published As

Publication number Publication date
EP0249946B1 (fr) 1990-02-28
ATE50617T1 (de) 1990-03-15
EP0249946A2 (fr) 1987-12-23
EP0249946A3 (en) 1988-06-08
DE3761776D1 (de) 1990-04-05
US4803764A (en) 1989-02-14

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