EP0894553B1 - Vorrichtung zum Biegen eines Hohlprofiles mit einem Niederhalter - Google Patents
Vorrichtung zum Biegen eines Hohlprofiles mit einem Niederhalter Download PDFInfo
- Publication number
- EP0894553B1 EP0894553B1 EP98113861A EP98113861A EP0894553B1 EP 0894553 B1 EP0894553 B1 EP 0894553B1 EP 98113861 A EP98113861 A EP 98113861A EP 98113861 A EP98113861 A EP 98113861A EP 0894553 B1 EP0894553 B1 EP 0894553B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hold
- bending
- hollow profile
- down device
- abutment
- 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
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
-
- 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
Definitions
- the invention relates to a device for bending a hollow profile to produce a desiccant during or after bending filled hollow spacer frame for insulating glass panes with a guide and lying approximately in the feed direction of the hollow profile Holding device for grasping the front of the bending point located profile area, with one acting as a bending tool or serving device for detecting and pivoting the bend leg of the hollow profile and with an abutment to fix the inside of the resulting bend or curve and if necessary with one on the outside of the bending point Contact pressure relative to the abutment and to the hollow profile movable and can be pressed onto the outside of the hollow profile and / or tool immersed between side webs of the hollow profile in particular in the form of at least part of the at The profile web located on the outside of the bend Pressure roller, with a support for a side bar or a Part of a side web of the hollow profile and parallel to it a hold-down for the other side bar or part of the other side web of this hollow profile are provided and the Distance between hold-
- Such a device for bending a spacer Inner frame or spacer frame for an insulating glass pane is from DE-B-32 21 986 as part of a machine for bending known.
- Such a device for bending a desiccant filled spacer frame is also from EP-B-0 121 873 and such a device for bending a desiccant filled or initially unfilled hollow profile is from EP-B-0 318 748 known and these devices have proven themselves because thus bending of hollow profiles with or without desiccant filling with a narrow bending radius is possible without the Side webs in the bending area are deformed in this way or warps receive that the glass panes to be put on it no longer in satisfactorily and with sufficient accuracy at a distance can be held and sealed.
- the invention is therefore based on the object of a device to create the type mentioned, in which the advantages of previously known devices with regard to good guidance and bending especially that located on the outside of the bending point Profile web of the hollow profile as well as that on the inside existing profile web remain and the Side bars in the bending area at an exact external distance according to the distance to be maintained between two glass panes can be held even if a thin-walled extruded hollow profile for example with wall thicknesses of the order of about a tenth of a millimeter or up to about two tenths of a millimeter or a hollow profile made of steel or stainless steel is to be bent, the spacer frame despite the reduced wall thickness sufficient strength in the bending area and in particular Should have bending strength.
- the hollow profile hold-down devices serving during the bending are divided into one part of the part in front of the bending area and in front of the bending point Downholder is fixed, so the captured profile is practical holds stationary, while the rotatable part of the hold-down Material of the side web applied by him during the deformation through the bend and with the required and occurring Flow behavior of the material supports, but at least this Deformation and the resulting cold flow of the material not from an initially straight orientation into the curved position hindered so that a upsetting and bulging or the distance Wrinkles that enlarge the parallel side bar are avoided can be.
- the rotating part of the hold-down is practical on the section of the side web of the hollow profile to be bent which, in turn, is a kind of turning or Swing movement should perform a fixed or over downholder running and protruding over the entire bending area could hinder.
- the axis of rotation for the rotating part of the hold-down with the swivel axis of the Bending tool matches and one with the bending movement synchronous rotary movement of the rotatable part of the hold-down device is provided. It is easy to see that in this way the Hold down the deformation of the side web captured by him one supports straight in a curved course and with the necessary transportation of the material of the side bridge contributes to support around the bending axis. relative movements between the hold-down device and the area of the Side bars are kept as low as possible.
- the support for the profile to be bent can also be used in the Bending area located rotatable part, the Axis of rotation is aligned with that of the rotatable part of the hold-down device, and the common axis of rotation of the rotatable parts of the hold-down device and the support are at right angles to the hold-down surface and the contact surface and thus at right angles to the side bars arranged of the profile. Then both side bars become practical acted upon by a rotating part and yet still kept at a distance, so that even introduction of Bending and possibly low frictional forces approximately symmetrical Way and at least largely the same size at the same time occur on both side bridges. So the danger of Squeezes and uneven bending of the parallel Sidewalls due to the largely synchronous loading moving parts as low as possible.
- the tightening of material into and around the bend area also favored in the area of the side bridges can consist in that the fixed part of the hold-down device compared to the bending hollow profile has little play or a sliding fit. On the one hand, this leads to a sufficiently good clamping of the that part of the hollow profile lying in front of the bending position holds that Hollow profile but at the same time especially in the area of Side bars not so tight that not some material in the Bending area and around this could be tightened.
- abutment is transverse to it Longitudinal deflection, in particular pendulum, in the way is stored that its effective area between the pad and hold-down can be moved back and forth.
- the abutment has a kind of "floating" bracket and is between during the bending process Support and hold-down device for the profile to be bent the best location moves, so that the inner space may become too large Tensions at this point with a jam, for example between abutment and hold down or between abutment and Bearings can be largely avoided.
- the abutment can be swiveled around an axis, it can be against the axis on the actual abutment side protrude from the opposite side and with this protrusion a stop, which limits the pendulum movement.
- the protrusion beveled, so that the pivot bearing protruding part of the abutment comes to rest when the Compression spring lifts the abutment in the bending area.
- the rotatable part of the hold-down device and the abutment can connected to one another, in particular connected in one piece. This is a synchronous and even as well as simultaneous Movement of both the hold-down device and the rotatable part possible so that the inside of the bend on the one hand but also at least the inside of the side bar on the other hand during the Bend pulled from the parts acting on it to a certain extent and be carried along. Relative movements between abutment and Hold-down device that leads to corresponding constraints on the hollow profile and could lead to its bridges are avoided. However, this is also possible if the rotatable part of the hold-down device and that Abutments are not connected to each other, but these parts or they hold parts have a common drive.
- the abutment can on the inner crossbar of the Hollow profile attacking abutment surface distributed transverse Grooves for the engagement of projecting on the inside of the hollow profile
- Have webs and the number of grooves can be chosen in particular be that several hollow profiles of different but common width can be loaded with webs projecting on the inside.
- the Abutment can be similar to the one that serves as an abutment Bending mandrel can be designed according to EP-B-0 582 064, at least in the area its actual abutment surface, from which the abutment to continue to mount it.
- hollow sections of different widths, their side webs are extended via an inside crossbar with which device according to the invention can be detected and bent because the engage protruding side webs in the grooves of the abutment can, with a groove suitably aligned with the support or matches and the further grooves spaced apart in their distances from this first, which corresponds to the edition Groove are dimensioned so that profiles of different widths are recorded can.
- each can expediently be a Hollow profile with a web-engaging groove the rotatable part of the Form hold-down, that is, the spaced from the support Grooves engage with their inner wall on the inside of the Ridges, while the outer wall comes to rest on the outside and there the function of in this case in one piece with the abutment connected rotatable part of the hold-down can exercise. Consequently can have different widths of such profiles with one and the same Abutment detected and according to the invention with a rotatable part hold down and processed.
- the abutment is detachable and is attached interchangeably. This not only allows a quick one Repair by replacing a damaged abutment, but also different sized abutments be used, which of course with a corresponding Adjustment of the distance between hold-down and Edition goes hand in hand. This can also vary in width dimensioned profiles are processed.
- the fixed part of the hold-down device and its holder can the profile to be bent from the outside of the bend to be formed reach over here. This mainly results on the inside of the Bending point and the subsequent bending takes up little space, so that even angles smaller than 90 ° can be easily bent, without losing the support and storage of the fixed part of the To be hindered.
- the leg to be bent can so then by more than 90 °, for example by up to about 140 ° be bent what is between the two legs of the hollow profile then to a correspondingly pointed and significantly smaller Angle than 90 ° leads.
- the rotatable part of the abutment therefore settles in one leg, which also the corresponding part of the Side web of the hollow profile is detected on the leg to be bent and protects against unwanted distortions and at the exact distance to the opposite side bridge.
- the bending tool and the rotating part of the Hold-down over the pivotable hold-down leg Transfer the bending movement to the rotating part of the hold-down device and so the smooth and simultaneous movement of these parts realized.
- the rotatable part of the hold-down device can thus extend in the direction of extension of the bendable leg of the hollow profile, this the Detect bending point adjacent, continue, then this Continuation forms the already mentioned hold-down leg, which has a double function, on the one hand as a hold-down and on the other hand as a coupling or transmission of the pivoting movement of the Bending tool acts on the rotatable part of the hold-down device, with which it can be connected in one piece.
- the rotatable part of the support is a radial outward sloping turntable, this waste to the outside, of course, takes place at a very small angle, so that the insertion and insertion of the workpiece or hollow profile between the support and the hold-down is as simple as possible, if the hollow profile has side webs on the inside Flange-like cross bar and on the inside of the Border cross-border a U-shaped cavity.
- the Dimensional accuracy between the side bars also precise in the bending area can be observed because the hold-down is divided and in the most deformed area of the side bars rotatable part of this hold-down is used, the Rotational movement the flow of the material around the bend supported and at least hindered as little as possible. At the same time contributes to favorable flow and deformation behavior on the side bars that in the area before the bend the profile guided and held, but not so tight that no material can be drawn from this area.
- the feed direction of the profile is in figure 1 indicated by the arrow Pf1.
- Figure 7 shows an approximately box-shaped cross section, at which two parallel side webs 6 and two approximately at right angles to it extending parallel crossbars 7 and 8 are provided, the 4 internal crossbars in the bending area and at the bending point 7 connects the side webs 6 directly at right angles, while the outside cross bar with the side bars over oblique Transitions 9 is connected.
- the side webs 6 seen in cross-section over the inside transverse web 7 protruding flanges 10, so that the inside crosspiece 7 of the neutral fiber of the hollow profile 2 is closer or even in the neutral fiber can be arranged.
- the flanges 10 are located in the bending area 4 on the inside of the bend and its cross section is directed towards the inside of the bend.
- the individual parts of the bending device are on this hollow profile 2 1 appropriately adapted to fix it and bend it can. It can be seen above all in FIGS. 2 to 6 and further in FIG. 11, designated as a whole by 11, as Bending tool acting or serving device for detecting and Pivoting the leg 12 of the hollow profile 2 to be bent, therefore also called “bending tool 11" below. Heard further to the bending device 1, an abutment 13, which from the EP 0 318 478 B1 known abutment in terms of shape and Mode of action is similar. The abutment 13 has its actual abutment surface starting from a continuation leg 14, which can be seen when bending in the direction of FIG curved arrow Pf2 along with the swiveling-bending movement.
- the hold-down device 17 is divided and one in the bending area 4 part 171 of the hold-down, in hereinafter also called rotatable hold-down part 171, in Bending direction is rotatable at least about the bending angle, wherein the pivot or rotation axis 18 for this rotatable part 171 of the Hold-down approximately through the neutral fiber to be bent Hollow profile 3 or this opposite radially to the inside of the bend is arranged offset, as the embodiments show.
- the hold-down device 17 Since the hold-down device 17 is divided, there is also an in Feed direction of the hollow profile 2 in front of this rotatable part 171 and part 172 of the holding-down device located in front of the bending point 4 17, which is stationary and which is stationary during the bending process held part of the hollow profile 2 and the bending point 4 immediately adjacent.
- the axis of rotation 18 is correct for the rotating part 171 of the hold-down with the pivot axis of the Bending tool 11, which is why the axis of rotation 18 and this Pivot axis are provided with the common reference number 18.
- there is synchronous with the bending movement according to arrow Pf2 Rotational movement of the rotatable part 171 of the hold-down device is provided.
- the support 16 for the hollow profile 2 to be bent also has Bending area 4 on a rotatable part 161, the axis of rotation again with that of the rotating part 171 of the hold-down device 17 is aligned or coincides, this axis of rotation 18 of the with rotatable parts 161 and 171 perpendicular to the hold-down surface and the contact surface and thus at right angles to the side bars 6 of the hollow profile 2 is arranged. You can see this, for example clearly in FIGS. 8 and 9, 13 and 14 and 16 and 17.
- the hollow profile 2 is sufficient from the holding device 3 fixed and still allows the desired slight Afterflow from immediately before the bending point 4 Material in the bending area.
- the holding device 3 still an open according to Figure 1, according to Figure 2 to the outer crossbar 8 press-on holding jaw 19, one good definition of the hollow profile 2 in spite of the game mentioned Area of the fixed part 172 of the hold-down device 17 allows.
- the workpiece designed as a hollow profile 2 is in the feed direction behind the bending area 4 between hold-down device 17 and support 18 and in that serving to grasp the leg 12 to be bent Bending tool 11 kept free of play and / or clamping so that its Dimension is not distorted by the bending process. Doing so in this area the part 171 which can also be pivoted or rotated of the hold-down device 17 and the rotatable part 161 of the support 16 effective.
- the hollow profile 2 is therefore at and behind the bending point 4 firmly and securely on all sides, so that its cross section and in particular the distance between the outer sides of the side webs 6 during and remain after the bend.
- the abutment 13 is automatically adjusted and centered thereby by the aforementioned pendulum movement about a transverse axis 20, the extension leg 14 at a distance from the actual Abutment 13 in the transverse direction and also at right angles to the Axis of rotation 18 passes through.
- Figures 10 and 15 illustrate a further advantage this oscillating arrangement of the abutment 13.
- the oscillating arrangement of the abutment 13 supports thus also the ejection of the curved hollow profile 2.
- this measure has a double function, because on the one hand it has a automatic adjustment to any minor irregularities the hollow profile 2 already during delivery and during Bending process allowed and on the other hand the removal of the bent Workpiece from the bending device 1 facilitated.
- the abutment 13 one side, in this case on the side of the support 16, by a compression spring 21, in this case by one with the compression spring 21 cooperating pin in the sense that it is when the hold-down device 17 or hold-down part 171 is lifted off Bearing 16 is held at a distance, as is shown in FIGS. 7 and 12 demonstrate.
- the compression spring 21 pivots the abutment 13 the transverse axis 20 in the deflected pendulum position.
- This Deflection limited by the fact that on the transverse axis 20th protruding part of the extension leg 14 on the support 16 or a sequel to it, and another Prevents pivoting.
- the abutment 13 and in particular Extension leg 14 is thus designed as a seesaw.
- the alignment the abutment 13 in the working position is done by adjusting of the hold-down device 17 or 171 in the use position according to FIG. 8 or 13 or 16 against the force of the spring 21, which after the Bending process and then after lifting the hold-down 17 according to Figure 10 and 15 is effective again and when loosening the bent Hollow profile 2 helps from the bending device 1.
- FIGS. 16 and 17 also show a modification in connection with the Bending a hollow profile 2, in which the internal crosspiece 7 is exceeded by the side webs 6 extending flanges 10.
- this is between the inner sides Flanges 10 and the abutment 13 each have a defined game present, which is filled in by the deformation according to FIG. 17 can be.
- the rotatable part 171 of the Hold-down and the rotatable part 161 of the edition accordingly with and prevent a dimensional deviation of the side webs 6 and Flanges 10 outwards, but possibly due to the bend necessary deformations especially of the flanges 10 in the already find space mentioned above.
- a spacer 22 advantageously in one piece with the Abutment 13, can be provided to make room for the leg or to leave flange 10.
- a spacer 22 can, however, also in the exemplary embodiment according to FIGS 10 may be provided, especially when the abutment 13 and if necessary, the pressure roller 15 at the bending point 4 in the Immerse the hollow profile 2. Accordingly, is also in Figures 7 and 10 such abutment 22 indicated.
- the rotatable part 171 of the hold-down 17 from the abutment 13 independently and can be relative to the abutment 13 in the direction the axis of rotation 18 can be lifted.
- an embodiment of the device 1 possible, which is also realized in this embodiment and is that the abutment 13 over its abutment surface distributes transverse grooves 23 for on the hollow profile 2 inside protruding flanges 10 or folds of the side webs 6 and that the number of grooves 23 is chosen such that several differently dimensioned hollow profiles 2 with inside already or only after the projecting webs 6 or Flanges 10 can be acted upon.
- Figures 12 to 15 is included a hollow profile 2 with from the outset opposite the inside Cross bar 7 projecting flanges 10 medium size shown. It can be seen that even narrower hollow sections 2 or one wider hollow profile 2 could be processed.
- the outer wall 24 each has a hollow profile 2 with a web 6 or a flange 10 engaging groove 23 forms the rotatable Part of the hold-down device 17, which is clear in the figures mentioned is, because such an outer wall 24 engages in the use position at least a portion of a flange 10 Side bridge and also synchronously follows the bending movement and the process performed pivoting of the abutment 13 and his Continuation leg 14 about the axis of rotation 18.
- a fixed part 172 of the Hold-down device 17 is provided before the Bending point 4 according to FIG. 11 is a fixed part 172 of the Hold-down device 17 is provided.
- an abutment 13 could only be used a groove can be provided, in which case the outer wall 24 of this groove the one-piece rotatable part 171 of the hold-down 17 for form a predetermined dimension of the hollow profile cross section would.
- the abutment 13 is detachable and can be attached interchangeably. Because the hold-down 17 or a other closure is adjustable in the direction of the axis of rotation 18, can also adapt to different in this way dimensioned cross sections of hollow sections 2 are carried out. It can even optionally an abutment according to Figures 1 to 10 or 11 to 15 are used.
- the bracket 25 already arranged on the outside, opposite which of the hold-down 17 in the actual bending area protrudes.
- the rotatable part 171 of the hold-down device 17 carries a directly acting on the bending area 4 during the Bending process with the bending movement with swiveling hold-down legs 173, the bending movement of the one to be bent Leg 12 of the hollow profile 2 performing bending tool 11 is fastened, that is, according to FIG. 3, is also carried in Transverse direction to this - perpendicular to the plane of the drawing 1 to 4 - but is slidably supported by the aforementioned lifting movement to allow.
- Bending tool 11 has a recess 28 into which a projection 29 of the hold-down leg 173 engages.
- clutch area 27 is also a parallel to the axis of rotation and bending 18 and Guide rods 26 arranged guide pin 30 to recognize the the lifting movement already mentioned vertical to the drawing plane of the Figures 1 to 4 and supported relative to the bending tool 11.
- the rotatable part 171 of the hold-down device 17 thus sets in Direction of extension of the bendable leg 12 of the hollow profile 2, grasping this adjacent to the bending point 4, through this Hold-down leg 173 continues.
- the side webs 6 respectively Flanges 10 are thus both directly at the bending point 10 as well as in the feed direction according to arrow Pf1 and held down synchronously with the bending progress.
- the rotatable part 161 of the support 16 is a radially sloping turntable can be what the insertion and inserting the hollow profile 2 between hold-down device 17 and Edition 16 can facilitate.
- the rotary movement of the rotatable Hold-down part 171 takes place in the exemplary embodiments by the swivel drive for the bending tool 11 and / or for the Hold-down 13, so that a synchronous movement to the whole Bending process takes place.
- the device 1 is used to bend a hollow profile 2 with which a spacer frame for insulating glass panes can be manufactured should.
- the hollow profile 2 can already be used during the bending Desiccant filled or still empty.
- the bending device has in addition to a bending tool 11 and an abutment 13 a hold-down device 17 for loading a side web 13 and / odereinesristoQuerterrorisminnen rockfortoughdenFlansches 10 and a support 16 parallel to it, so that it can also be used in the bending area 4 the outer dimension of the hollow profile 2 is precisely preserved.
- the hold-down 17 is divided and has in Bending area 4 one with the bending movement in the bending direction with rotatable part 171, which changes the direction of the Side web 6 / flange 10 supported in the bending process.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
- Fig.1
- eine Ansicht einer erfindungsgemäßen Vorrichtung zum Biegen eines Hohlprofiles, wobei sich das Hohlprofil bereits in Biegeposition befindet und sich die Führungs- und Haltevorrichtung für dieses Hohlprofil einerseits und eine als Biegewerkzeug wirkende Einrichtung zum Erfassen und Verschwenken des umzubiegenden Schenkels und ein damit zusammenwirkendes Widerlager andererseits noch in Offenstellung befinden,
- Fig.2
- eine der Figur 1 entsprechende Darstellung, in welcher das zu biegende Hohlprofil vor der Biegestelle von der Haltevorrichtung und hinter der Biegestelle von dem Biegewerkzeug erfaßt ist, wobei auch das beim Biegen in Biegerichtung verschwenkbare Widerlager sich in Ausgangsstellung befindet und mit einem Fortsetzungsschenkel die Innenseite des von einer Biegewange des Biegewerkzeuges an seiner Außenseite erfaßten Schenkels anliegt,
- Fig.3
- eine der Figur 2 entsprechende Darstellung während des Biegevorganges, nachdem das Biegewerkzeug und das Widerlager sowie ein drehbarer Teil eines Niederhalters eine Verschwenkung um etwa 45° durchgeführt haben,
- Fig.4
- eine der Figur 2 und 3 entsprechende Darstellung, bei welcher das Hohlprofil um 90° gebogen ist,
- Fig.5
- eine Stirnansicht der erfindungsgemäßen Vorrichtung mit dem Widerlager, einer Auflage für das Hohlprofil und einem außenseitig angreifenden Niederhalter, wobei gleichzeitig eine die Außenseite der Biegestelle beaufschlagende Rolle punktiert angedeutet ist,
- Fig.6
- einen Querschnitt der Biegevorrichtung und insbesondere des Widerlagers und der Biegewange gemäß der Schnittlinie VI-VI in Figur 5 mit einer Ansicht auf die das zu biegende Hohlprofil beaufschlagende Fläche des Niederhalters und dabei eines feststehenden Teiles des Niederhalters sowie eines schwenk- oder drehbaren Teiles dieses Niederhalters,
- Fig.7
- eine abgewandelte Ausführungsform der Vorrichtung zum Biegen analog der Darstellung in Figur 5, wobei sich der Niederhalter und die übrigen Teile dieser Vorrichtung in Offenstellung befinden und eine während des Biegens an der Außenseite der Biegestelle in das Hohlprofil eintauchende Rolle vorgesehen ist und wobei aufgrund der Offenstellung und der dazugehörigen Abhebung des Niederhalters das Widerlager mit seinem Fortsetzungsschenkel gegenüber der Auflage angehoben beziehungsweise von ihr etwas wegverschwenkt ist,
- Fig.8
- eine der Figur 7 entsprechende Darstellung zu Beginn des Biegevorganges, also eine Stirnansicht etwa der Anordnung gemäß Figur 2,
- Fig.9
- eine Darstellung gemäß Figur 8 am Ende des Biegevorganges, während welchem das Widerlager einerseits und die die Außenseite der Biegestelle beaufschlagende Druckrolle andererseits an der Biegestelle des Hohlprofiles in dieses eingetaucht sind,
- Fig. 10
- eine den Figuren 7 bis 9 entsprechende Darstellung, wobei die Vorrichtung nach dem Biegevorgang wieder geöffnet ist und das Widerlager sich mit dem Profil von der Auflage abgehoben hat,
- Fig. 11
- eine Ansicht einer abgewandelten Vorrichtung zum Biegen, bei welcher der drehbare Teil des Niederhalters mit dem Widerlager dadurch einstückig verbunden ist, daß das Widerlager quer zu seiner Widerlager verlaufende Nuten hat, wobei die jeweils vom Profil abgewandte Wandung einer solchen Nut als drehbarer Teil des Niederhalters wirkt,
- Fig. 12
- eine der Darstellung der Figur 7 entsprechende Stirnansicht der abgewandelten Vorrichtung zum Biegen gemäß Figur 11 mit Blick auf das Widerlager und auf die dort vorgesehenen Nuten auch zur Anpassung an unterschiedlich breite Hohlprofile, wobei die Außenseite der Biegestelle durch eine Druckrolle beaufschlagbar ist, deren Breite größer als die des Hohlprofiles ist,
- Fig.13
- eine der Figur 12 entsprechende Darstellung bei geschlossener Vorrichtung zu Beginn des Biegevorganges,
- Fig.14
- eine den Figuren 12 und 13 entsprechende Darstellung der Vorrichtung analog Figur 9 am Ende des Biegevorganges,
- Fig. 15
- eine Ansicht gemäß den Figuren 12 bis 14 und analog Figur 10 am Ende des Biegevorganges nach dem Öffnen der Vorrichtung,
- Fig.16
- in vergrößertem Maßstab eine den Figuren 5 und 7 bis 10 sowie 12 bis 15 entsprechende Ansicht einer abgewandelten Ausführungsform, bei welcher die Abmessung des Widerlagers gegenüber der Innenseite des Hohlprofiles beziehungsweise dort innenseitig überstehender Schenkel eine geringere Breite hat und in Ausgangsstellung ein definiertes Spiel freiläßt, welches durch die Umformung gefüllt wird, sowie
- Fig.17
- eine der Figur 16 entsprechende Darstellung während und nach dem Biegevorgang, nach welchem das Spiel zwischen Widerlager und Hohlprofil auch an den Oberflächen des Widerlagers durch Umformung des Hohlprofiles oder seiner abstehenden Schenkel ausgefüllt ist.
Claims (16)
- Vorrichtung (1) zum Biegen eines Hohlprofiles (2) zur Herstellung eines bei oder nach dem Biegen mit Trockenmittel gefüllten hohlen Abstandhalter-Rahmens für Isolierglasscheiben mit einer etwa in Zuführrichtung des Hohlprofiles (2) liegenden Führungs- und Haltevorrichtung (3) zum Erfassen des vor der Biegestelle (4) befindlichen Profilbereiches (5), mit einer als Biegewerkzeug (11) wirkenden oder dienenden Einrichtung zum Erfassen und Verschwenken des umzubiegenden Schenkels (12) des Hohlprofiles (2) sowie mit einem Widerlager (13) zum Fixieren der Innenseite der entstehenden Biegung oder Krümmung und gegebenenfalls mit einem an der Außenseite der Biegestelle (4) unter Anpreßdruck relativ zu dem Widerlager (13) und zu dem Hohlprofil (2) bewegbaren und an der Außenseite des Hohlprofiles (2) anpreßbaren und/oder zwischen Seitenstege (6) des Hohlprofiles eintauchenden Werkzeug insbesondere in Form einer wenigstens einen Teil des an der Außenseite der Biegung befindlichen Profil- oder Quersteges (8) beaufschlagenden Druckrolle (15), wobei eine Auflage (16) für einen Seitensteg (6) oder einen Teilbereich eines Seitensteges (6) des Hohlprofiles (2) und parallel dazu ein Niederhalter (17) für den anderen Seitensteg (6) oder einen Teil des anderen Seitensteges (6) dieses Hohlprofiles (2) vorgesehen sind und der Abstand zwischen Niederhalter (17) und Auflage (16) etwa der Breite des Hohlprofiles (2) und damit dem späteren lichten Abstand zweier auf Abstand zu haltender Glasscheiben entspricht, dadurch gekennzeichnet, daß der Niederhalter (17) unterteilt ist und ein im Biegebereich (4) befindlicher Teil (171) des Niederhalters in Biegerichtung wenigstens etwa um den Biegewinkel verdrehbar ist, daß die Drehachse (18) für diesen drehbaren Teil (171) des Niederhalters etwa durch die neutrale Faser des zu biegenden Hohlprofiles (2) oder dieser gegenüber radial zum Inneren der Biegung hin versetzt angeordnet ist, und daß ein in Zuführrichtung des Hohlprofiles (2) vor diesem drehbaren Teil (171) des Niederhalters befindlicher Teil (172) des Niederhalters feststehend vorgesehen ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Drehachse (18) für den mitdrehenden Teil (171) des Niederhalters mit der Schwenkachse des Biegewerkzeuges (11) übereinstimmt und eine mit der Biegebewegung synchrone Drehbewegung des drehbaren Teiles (171) des Niederhalters vorgesehen ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Auflage (16) für das zu biegende Hohlprofil (2) einen im Biegebereich (4) befindlichen mitdrehbaren Teil (161) aufweist, dessen Drehachse mit der des mitdrehbaren Teiles (171) des Niederhalters (17) fluchtet, und daß die gemeinsame Drehachse (18) der mitdrehbaren Teile des Niederhalters und der Auflage rechtwinklig zu der Niederhalterfläche und der Auflagefläche und damit rechtwinklig zu den Seitenstegen (6) des Hohlprofiles (2) angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der feststehende Teil (172) des Niederhalfers (17) gegenüber dem zu biegenden Hohlprofil (2) ein geringes Spiel oder einen Schiebesitz hat.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das als Hohlprofil (2) ausgebildete Werkstück in Zuführrichtung hinter dem Biegebereich (4) zwischen Niederhalter (17) und Auflage (16) beziehungsweise in dem zum Erfassen des umzubiegenden Schenkels (12) dienenden Biegewerkzeug (11) spielfrei und/oder klemmend gehalten ist.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Widerlager (13) quer zu einer Längserstreckung auslenkbar, insbesondere pendelnd, in der Weise gelagert ist, daß sein Wirkbereich zwischen Auflage (16) und Niederhalter (17) hinund herbewegbar ist.
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Widerlager (13) auf einer Seite, insbesondere auf der Seite des Auflagers (16), durch eine Druckfeder (21) oder dergleichen in dem Sinne beaufschlagt ist, daß es bei abgehobenem Niederhalter (17) von dem Auflager (16) beabstandet gehalten ist.
- Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der drehbare Teil (171) des Niederhalters (17) und das Widerlager (13) miteinander verbunden, insbesondere einstückig verbunden sind.
- Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Widerlager (13) über seine Widerlagerfläche verteilt quer verlaufende Nuten (23) für an dem Hohlprofil (2) innenseitig vorstehende Stege (6) oder Flansche (10) hat und daß die Zahl der Nuten (23) insbesondere derart gewählt ist, daß mehrere Hohlprofile (2) unterschiedlicher Breite mit innenseitig vorstehenden Stegen (6; 10) beaufschlagbar sind.
- Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß jeweils die Außenwand (24) einer ein Hohlprofil (2) mit einem Steg (6) oder einem Flansch (10) erfassenden Nut (23) den drehbaren Teil des Niederhalters (17) bildet.
- Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das Widerlager (13) lösbar und austauschbar befestigt ist.
- Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß der feststehende Teil (172) des Niederhalters (17) und seine Halterung das zu biegende Hohlprofil (2) von der Außenseite der zu bildenden Biegung her übergreift.
- Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß im Bereich der Haltevorrichtung (3) für das zugeführte Hohlprofil (2) vor dem Biegebereich (4) eine Halterung (25) angeordnet ist, gegenüber welcher der Niederhalter (17) in den Biegebereich vorsteht und daß der drehbare Teil (171) des Niederhalters an diesem vorstehenden Teil einen den Biegebereich (4) unmittelbar beaufschlagenden, während des Biegevorganges mit der Biegebewegung mitschwenkbaren Niederhalter-Schenkel (173) trägt, der an einem die Biegebewegung des umzubiegenden Schenkels (12) des Hohlprofiles (2) durchführenden Biegewerkzeug (11) befestigt, und insbesondere in Querrichtung relativ dazu verschiebbar gelagert ist.
- Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß sich der drehbare Teil (171) des Niederhalters (17) in Erstreckungsrichtung des umbiegbaren Schenkels (12) des Hohlprofiles (2), diesen der Biegestelle (4) benachbart erfassend, fortsetzt.
- Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der drehbare Teil (161) der Auflage (16) ein radial nach außen abfallender Drehteller ist.
- Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß an der dem Niederhalter (17) zugewandten Oberfläche des Widerlagers (13) ein Abstandhalter (22), insbesondere einstückig mit dem Widerlager (13), vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19733536A DE19733536C2 (de) | 1997-08-02 | 1997-08-02 | Biegevorrichtung mit einem Niederhalter für Hohlprofile |
DE19733536 | 1997-08-02 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0894553A2 EP0894553A2 (de) | 1999-02-03 |
EP0894553A3 EP0894553A3 (de) | 1999-08-25 |
EP0894553B1 true EP0894553B1 (de) | 2002-11-06 |
Family
ID=7837852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98113861A Expired - Lifetime EP0894553B1 (de) | 1997-08-02 | 1998-07-24 | Vorrichtung zum Biegen eines Hohlprofiles mit einem Niederhalter |
Country Status (4)
Country | Link |
---|---|
US (1) | US6023956A (de) |
EP (1) | EP0894553B1 (de) |
AT (1) | ATE227178T1 (de) |
DE (2) | DE19733536C2 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT410909B (de) * | 2000-05-09 | 2003-08-25 | Lisec Peter | Verfahren und vorrichtung zum biegen von hohlprofilleisten zu abstandhalterrahmen für isolierglasscheiben |
DE10138345B4 (de) * | 2001-08-03 | 2008-12-04 | Lenhardt Maschinenbau Gmbh | Vorrichtung zum Biegen von Hohlprofilstäben |
ATE252953T1 (de) * | 2001-08-20 | 2003-11-15 | Peter Lisec | Verfahren und vorrichtung zum biegen von hohlprofilleisten zu abstandhalterrahmen für isolierglasscheiben |
US6619098B2 (en) | 2001-08-28 | 2003-09-16 | Peter Lisec | Process and device for bending of hollow profile strips into spacer frames for insulating glass panes |
DE10236407B4 (de) * | 2002-08-02 | 2007-09-27 | Lenhardt Maschinenbau Gmbh | Vorrichtung zum Biegen von Hohlprofilstäben |
DE10236373B4 (de) * | 2002-08-02 | 2007-10-11 | Takata Corp. | Verfahren zum Biegen eines Füllrohres für ein Airbagmodul und Vorrichtung zur Durchführung dieses Verfahrens |
CN102248041A (zh) * | 2010-05-17 | 2011-11-23 | 赵士平 | 中空玻璃铝隔条折弯机中的定位装置 |
CN102294412A (zh) * | 2011-06-30 | 2011-12-28 | 张家港市大新仁和模具厂 | 铝框成型方法 |
US10183363B2 (en) | 2015-08-04 | 2019-01-22 | Cardinal Ig Company | Spacer formation cell |
PL3394379T3 (pl) | 2017-03-10 | 2020-09-07 | Allmetal, Inc. | Konstrukcja elementu dystansującego szyby zespolonej |
CN112024673B (zh) * | 2020-08-31 | 2022-09-30 | 太原市三高能源发展有限公司 | 一种汽车零部件用弯曲机 |
CN115178620A (zh) * | 2022-07-04 | 2022-10-14 | 山东能特异能源科技有限公司 | 用于中空玻璃的封填式间隔条的折弯方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3221986A1 (de) * | 1982-06-11 | 1983-12-15 | Fr. Xaver Bayer Isolierglasfabrik Kg, 7807 Elzach | Maschine zum herstellen eines abstandhaltenden innenrahmens fuer eine isolierglasscheibe |
DE3312764A1 (de) * | 1983-04-09 | 1984-10-18 | Fr. Xaver Bayer Isolierglasfabrik Kg, 7807 Elzach | Verfahren und vorrichtung zum biegen von abstandhalter-profilen fuer isolierglasscheiben |
DE3740921A1 (de) * | 1987-12-03 | 1989-06-15 | Bayer Isolierglasfab Kg | Vorrichtung zur herstellung einer biegung an einem hohlen rechteck-profil |
US4938050A (en) * | 1989-06-22 | 1990-07-03 | Usui Kokusai Sangyo Kaisha Ltd. | Small-diameter metallic conduit bending machine |
DE9103368U1 (de) * | 1991-03-19 | 1991-06-20 | Hewing GmbH, 4434 Ochtrup | Vorrichtung zum Biegen von Rohren |
US5439716A (en) * | 1992-03-19 | 1995-08-08 | Cardinal Ig Company | Multiple pane insulating glass unit with insulative spacer |
DE4225833C2 (de) * | 1992-08-05 | 1994-07-28 | Bayer Isolierglasfab Kg | Biegevorrichtung für Hohlprofile |
US5640828A (en) * | 1995-02-15 | 1997-06-24 | Weather Shield Mfg., Inc. | Spacer for an insulated window panel assembly |
AT406236B (de) * | 1995-10-31 | 2000-03-27 | Lisec Peter | Vorrichtung zum biegen oder krümmen von hohlprofilleisten |
-
1997
- 1997-08-02 DE DE19733536A patent/DE19733536C2/de not_active Expired - Fee Related
-
1998
- 1998-07-24 EP EP98113861A patent/EP0894553B1/de not_active Expired - Lifetime
- 1998-07-24 AT AT98113861T patent/ATE227178T1/de active
- 1998-07-24 DE DE59806154T patent/DE59806154D1/de not_active Expired - Lifetime
- 1998-07-31 US US09/127,418 patent/US6023956A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0894553A2 (de) | 1999-02-03 |
DE59806154D1 (de) | 2002-12-12 |
DE19733536A1 (de) | 1999-02-18 |
EP0894553A3 (de) | 1999-08-25 |
DE19733536C2 (de) | 2001-10-11 |
ATE227178T1 (de) | 2002-11-15 |
US6023956A (en) | 2000-02-15 |
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