EP0472530A1 - Folding machine, especially for joining the edges of metal sheets by folding. - Google Patents

Folding machine, especially for joining the edges of metal sheets by folding.

Info

Publication number
EP0472530A1
EP0472530A1 EP90905497A EP90905497A EP0472530A1 EP 0472530 A1 EP0472530 A1 EP 0472530A1 EP 90905497 A EP90905497 A EP 90905497A EP 90905497 A EP90905497 A EP 90905497A EP 0472530 A1 EP0472530 A1 EP 0472530A1
Authority
EP
European Patent Office
Prior art keywords
folding
machine according
carriage
folding machine
machine frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90905497A
Other languages
German (de)
French (fr)
Other versions
EP0472530B1 (en
Inventor
Xaver Lipp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reinhardt Maschinenbau GmbH
Original Assignee
Reinhardt Maschinenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Reinhardt Maschinenbau GmbH filed Critical Reinhardt Maschinenbau GmbH
Priority to AT90905497T priority Critical patent/ATE86895T1/en
Publication of EP0472530A1 publication Critical patent/EP0472530A1/en
Application granted granted Critical
Publication of EP0472530B1 publication Critical patent/EP0472530B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means

Definitions

  • Folding machine in particular for joining the edges of sheets by folding
  • the invention relates to a folding machine, in particular for connecting the edges of sheets by folding, with a machine frame which has contact surfaces for the parts to be folded and has a folding device consisting of several pairs of folding rollers.
  • the object of the invention is to create a folding machine which, in a simple manner and with the saving of operating personnel, enables two sheets to be joined at right angles, from which a channel with a rectangular cross section can subsequently be produced. This object is achieved by a folding machine with the features of claim 1.
  • the folding roller pairs are provided on a carriage which can be moved along a guide of the machine frame , the workpieces, for example two metal sheets to be joined together, can be fixed on the machine, since they do not have to move relative to the machine frame during the folding process. No person is therefore required during the folding process to hold the workpiece or the workpieces.
  • the carriage can be towed or pulled, for example by means of a chain, or can also be pushed, for example by means of a cylinder / piston unit.
  • a rack and a meshing with this gear according to claims 3 and 4 is provided.
  • the first of the two contact surfaces is preferably inclined with respect to the vertical.
  • the generally tabular workpieces are fixed by means of holding devices, which are preferably clamping devices which can overlap the front and rear edges of a sheet.
  • holding devices are expediently provided on rails which can be adjusted in the longitudinal direction in order to be able to adapt their position to the requirements of the workpieces of different lengths.
  • the holding device which detects the beginning of the workpiece can be displaceable in accordance with Width of the edge to be detected and then released again.
  • this displacement is effected by means of a pivotable actuating lever.
  • the machine frame which is preferably U-shaped in cross section, advantageously has a running rail for the carriage between the two legs.
  • the contact surfaces can then be provided in the region of the free ends of the two legs.
  • the carriage is preferably performed according to claim 11. The forces that occur can then be introduced into the running rail without any problems. This also applies to the force caused by the drive if a pinion driven by an electric motor is provided on the carriage and engages in a toothed rack provided on the rail.
  • the carriage has a design according to claims 12 and 13.
  • the cross section of the connecting piece can then be chosen to be relatively small.
  • At least the first pair of folding rollers is designed according to claim 14. Furthermore, for adaptation to different workpieces, it is expedient to arrange at least one folding roller of each pair of folding rollers to be height-adjustable on the holding device.
  • Figure 1 is an end view of the embodiment without folding rollers and their support device.
  • Fig. 2 is a plan view of the embodiment; 3 shows a cross section of the carriage.
  • Fig. 4 is a side view of the carriage and the running rail carrying it;
  • FIG. 5 shows a section of the carrying device along the line V - V of FIG. 4.
  • FIG. 6 shows a section of the web of the carrying device along the line VI - VI of FIG. 5.
  • FIG. 7 shows a plan view of the upper folding rollers of the folding roller pairs, a stop for the sheet metal sheet gripped by the folding rollers and the clamping devices holding the sheet metal sheet.
  • FIG. 8 shows a plan view of a clamping device in the installed state
  • a folding machine has, as shown in FIG. 1, a machine frame 1 which is U-like in cross section, the yoke part 2 of which forms the foot of the machine frame.
  • the one, somewhat shorter leg 3 of the machine frame 1 extends vertically upwards and is widened in the region of its upper end to form a support surface 4.
  • the bearing surface 4 is inclined towards the other, somewhat longer leg 5, namely at an angle of approximately 20 c with respect to the horizontal.
  • the leg 5 is angled at its upper end against the other leg 3 and also widened to form a support surface 6.
  • This support surface 6, which is of a flat design like the support surface 4, runs perpendicular to the plane defined by the support surface 4. It therefore forms an angle of approximately 20 ° with the vertical.
  • an upwardly open U-rail 7 is fixed to it slightly below the support surface 4 and, as shown in FIG. 2, projects beyond the two end faces of the leg 3.
  • a corresponding U-rail 8 is attached to the underside of the angled end section of the leg 5 such that it likewise does not protrude into the plane defined by the support surface 6.
  • the U-rail 8 also projects beyond the two end faces of the leg 5.
  • the two U-rails 7 and 8 serve for the longitudinally adjustable reception of two clamping devices 9 and 10, by means of which the front and rear edge of the metal sheets can be gripped and clamped.
  • the clamping devices 9 which detect the front edge, that is to say the edge at which the folding process begins, have, as shown in FIGS.
  • a block-shaped base body 11 located in the U-rails 7 and 8, respectively The upper side protrudes slightly beyond the open side of the U-rail.
  • a double-armed pivot lever 12 is pivotally mounted about an axis 13 lying transversely to the longitudinal direction of the U-rail and parallel to its yoke part.
  • two cheeks extend from the pivot lever 12 into a lateral recess in the base body 11, as shown in FIGS. 8 and 9.
  • the pivot lever 12 has a long arm 12 ', which at its free end rotates in a slot about an axis parallel to the axis 13, an eccentric 14 which rests on the upper side of the base body 11 and can be rotated by means of a hand lever 15.
  • the short arm 12 "of the pivot lever 12 points to the center of the machine and carries in a thread a clamping screw 16, between which and the roughened top of the base body 11 a sheet metal plate can be clamped. Thanks to the clamping screw 16, the clamping device 9 can be adapted to different panel thicknesses.
  • the base body 11 is provided with an upwardly open transverse groove 20, which is penetrated by a shaft 17 rotatably mounted in the U-rail, from which a displacement element 18 in the radial direction like the beard of a key protrudes.
  • the shaft 17 and the displacement element 18 can be pivoted by means of a lever 19.
  • the displacement element 18 rests on the one flank of the transverse groove 20 and therefore holds the clamping device 9 firmly in the U-rail at one end of its displacement path. If the lever 19 is pivoted through 180 °, the displacement element 18 comes into contact with the other flank of the transverse groove 20 and displaces the clamping device into its other end position.
  • the entire displacement path is chosen to be somewhat greater than the depth of the clamping mouth, which is formed by the short arm 12 'and the section of the base body 11 lying opposite it, so that the clamping device 9 can be moved through a pivoting movement of the lever 19 by 180 ° in a viewing direction according to FIG 8 can be retracted counterclockwise to the extent that the edge of a sheet metal sheet that has been overlapped is released.
  • the two clamping devices 10 which grip the rear edge of the metal sheets, must be displaceable over a greater distance in the U-rail because of the different lengths of the metal sheets. They are therefore not provided with the displacement device formed by the shaft 17 and the displacement element 18, but rather with a tensioning device which parallelizes the base body in the U-rail between its two Thighs tight. Otherwise, they are designed like the clamping devices 9.
  • a stop rail 21 is provided which is parallel to the U-rails 7 and 8 runs and is carried by two swivel arms 22, which are pivotably mounted on the leg 5 with a horizontal swivel axis 23 parallel to the U-rails 7 and 8.
  • the stop rail 21 is open at the top, so that the sheet-metal plate 39 resting on the support surface 6 can engage in it.
  • the stop rail 21 is pivoted downward.
  • the end of the swivel arms 22 projecting beyond the outside of the leg 5 is swiveled upward.
  • a running rail 24 is fixed, which extends in the longitudinal direction of the channel delimited by the yoke part 2 and the legs 3 and 5 via the end faces of the machine frame 1 extends, to an extent that is greater than the protrusion of the U-rails 7 and 8.
  • the upper part of the running rail 24 forms a double-T profile.
  • the running rail 24 carries a carriage designated as a whole by 25, which in turn carries a folding device 26. As shown in FIG. 3, wheels 27 of the carriage 25 engage between the transverse parts of the running rail 24, as a result of which the carriage is positively secured against displacement transverse to the longitudinal extension of the running rail 24.
  • a pinion 28 is arranged, which meshes with a toothed rack 29 provided on the underside of the upper transverse part of the running rail 24.
  • the pinion 28 is driven by a also in the carriage 25 arranged electric gear motor, which can be operated either in one or the other direction of rotation.
  • the pinion can be driven, for example, via a chain.
  • the carriage 25 which is U-shaped in cross section, carries an elongated support device 31 for several on a platform 30, from which the legs carrying the wheels 27 extend downwards on both sides of the running rail 24, extending in the direction of travel of the carriage 25 , pairs of folding rollers 32 arranged one behind the other in the direction of travel.
  • the carrying device 31 consists of a rod-shaped lower part 33 and a likewise rod-shaped upper part 34, which are connected to one another by a narrow web 35 which is inclined in accordance with the inclined position of the contact surface.
  • This web 35 runs out in a wedge shape in its rear half, because here the edge zones of the two sheets to be connected have to be brought together.
  • the lower part 33 and the upper part 34 protrude beyond the web 35 to the extent necessary for receiving the folding roller pairs 32.
  • the web 35 is arranged between the second and third pair of folding rollers.
  • each pair of folding rollers 32 are, as shown in FIG. 3 in particular, rotatably mounted on a bearing pin protruding from the upper part 34. Appropriate storage could also be provided for the lower folding rollers. In the exemplary embodiment, however, as is also shown in FIG. 3, they are each rotatably mounted in a U-type holder 36, which is connected to the lower part 33 in a height-adjustable manner. At least the folding rollers of the first pair of folding rollers 32 are, as shown in FIG.
  • metal sheets 38 and 39 which are at right angles to one another, are to be joined together by folding along their one edge zone, these two metal sheets 38 and 39 are placed on the bearing surfaces 4 and 6, as shown in FIG. 1 shows.
  • the lower edge of the metal plate 39 lies against the bottom of the stop rail 21.
  • the edge of the metal plate 38 facing the metal plate 39 has a line running parallel and at a distance from the edge located in the stop rail 21.
  • the two metal sheets 38 and 39 are fixed with the aid of the clamping devices 9 and 10.
  • the stop rail 21 is pivoted downward so that the carriage 25 can now be moved towards the front end of the two metal sheets 38 and 39.
  • the first of the pairs of folding rollers 32 carried by the carriage 25 initially deforms only the edge of the metal sheet 38 in the sense of a double offset, as shown in FIG. 10 above.
  • the second pair of folding rollers 32 forms a U-profile which is open at the bottom from this double cranked edge zone.
  • the third pair of folding rollers bends the edge zone of the sheet 39 inwards and the fourth pair of folding rollers presses the bent sheet metal strip upward, so that, as shown in FIG. 10, the long leg of the U-profile of the sheet 38 is received by the fold of the sheet 39. Now this fold is bent inwards by the fifth pair of folding rollers and, as shown in FIG. 10, is pressed into the depression by the sixth pair of folding rollers, which was initially formed by double bending of the sheet metal plate 38.
  • the clamping devices 9 and 10 can be released. If, for example, a channel is to be formed from the two metal sheets 38 and 39, these metal sheets only need to be rotated about the longitudinal axis of the channel, which is much easier than the transport of the metal sheets. Furthermore, the metal sheets 38 and 39 do not have to be held in place during the folding processes. The operator therefore only needs to switch the drive motor of the carriage on and off for the folding processes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

Une plieuse, notamment pour assembler les bords de tôles par pliage, comprend un bâti pourvu de surfaces d'appui des pièces à plier qui porte un dispositif de pliage composé de plusieurs paires de rouleaux de pliage. Les paires (32) de rouleaux de pliage sont montées sur un chariot (25) susceptible d'être entraîné le long d'un guide (24) du bâti (1) au moyen d'un dispositif d'entraînement.A folding machine, in particular for assembling the edges of sheets by folding, comprises a frame provided with surfaces for supporting the parts to be folded which carries a folding device composed of several pairs of folding rollers. The pairs (32) of folding rollers are mounted on a carriage (25) capable of being driven along a guide (24) of the frame (1) by means of a driving device.

Description

B e s c h r e i b u n g Description
Falzmaschine, insbesondere zum Verbinden der Ränder von Blechen durch FalzenFolding machine, in particular for joining the edges of sheets by folding
Die Erfindung betrifft eine Falzmaschine, insbesondere zum Ver¬ binden der Ränder von Blechen durch Falzen, mit einem Maschi¬ nengestell, das Anlageflächen für die zu falzenden Teile hat und eine aus mehreren Falzrollenpaaren bestehende FalzVorrich¬ tung aufweist.The invention relates to a folding machine, in particular for connecting the edges of sheets by folding, with a machine frame which has contact surfaces for the parts to be folded and has a folding device consisting of several pairs of folding rollers.
Bei den bekannten Falzmaschinen sind, wenn große Bleche mitei¬ nander durch Falzen verbunden werden sollen, vier Personen not¬ wendig, weil die beiden Blechtafeln von je zwei Personen vorne bzw. hinten festgehalten werden müssen. Dies ist dadurch be¬ dingt, daß die Blechränder durch die gestellfeste Falzvorrich¬ tung hindurchlaufen müssen und dabei das eine Blech in Anlage an der zugeordneten Anlagefläche gehalten werden muß. Werden beispielsweise aus den Blechen Kanäle geformt, dann müssen außerdem die Personen das Werkstück nach einem Biege- oder Falzvorgang für den nächsten Biege- oder Falzvorgang wieder in die Ausgangslage zurückbringen.In the known folding machines, if large sheets are to be connected to one another by folding, four people are necessary because the two metal sheets have to be held in front by two people each. This is due to the fact that the sheet metal edges have to run through the folding device fixed to the frame and the one sheet metal must be held in contact with the associated contact surface. If, for example, channels are formed from the sheets, then the people must also return the workpiece to the starting position after a bending or folding process for the next bending or folding process.
Der Erfindung liegt die Aufgabe zugrunde, eine Falzmaschine zu schaffen, die in einfacher Weise und unter Einsparung von Bedienungspersonal eine Zusammenfügung zweier Bleche im rechten Winkel ermöglicht, aus denen anschließend ein Kanal rechtecki¬ gen Querschnitts gefertigt werden kann. Diese Aufgabe löst eine Falzmaschine mit den Merkmalen des Anspruchs 1.The object of the invention is to create a folding machine which, in a simple manner and with the saving of operating personnel, enables two sheets to be joined at right angles, from which a channel with a rectangular cross section can subsequently be produced. This object is achieved by a folding machine with the features of claim 1.
Dadurch, daß die Falzrollenpaare an einem Wagen vorgesehen sind, der längs einer Führung des Maschinengestells verfahrbar ist, können die Werkstücke, also beispielsweise zwei miteinan¬ der zu verbindende Blechtafeln, an der Maschine festgelegt wer¬ den, da sie sich während des FalzVorganges nicht relativ zum Maschinengestell zu bewegen brauchen. Während des Falzvorganges wird daher keine Person benötigt, um das Werkstück oder die Werkstücke zu halten.Characterized in that the folding roller pairs are provided on a carriage which can be moved along a guide of the machine frame , the workpieces, for example two metal sheets to be joined together, can be fixed on the machine, since they do not have to move relative to the machine frame during the folding process. No person is therefore required during the folding process to hold the workpiece or the workpieces.
Der Wagen kann, beispielsweise mittels einer Kette, geschleppt oder gezogen oder auch, beispielsweise mittels eines Zylin¬ ders/Kolben-Aggregates, geschoben werden. Bei einer bevorzugten Ausführungsform ist jedoch eine Zahnstange und ein mit dieser kämmendes Zahnrad gemäß den Ansprüchen 3 und 4 vorgesehen.The carriage can be towed or pulled, for example by means of a chain, or can also be pushed, for example by means of a cylinder / piston unit. In a preferred embodiment, however, a rack and a meshing with this gear according to claims 3 and 4 is provided.
Um ohne Hilfsmittel beide Werkstücke, Blechtafeln oder derglei¬ chen in Anlage an den Anlageflächen zu halten, ist vorzugsweise die erste der beiden Anlageflächen gemäß Anspruch 5 gegenüber der Vertikalen geneigt.In order to hold both workpieces, metal sheets or the like in contact with the contact surfaces without aids, the first of the two contact surfaces is preferably inclined with respect to the vertical.
Die Handhabung der Werkstücke wird ferner durch eine Anschlag¬ schiene gemäß Anspruch 6 erleichtert.The handling of the workpieces is further facilitated by a stop rail according to claim 6.
Die Festlegung der in der Regel tafelförmigen Werkstücke erfolgt bei einer bevorzugten Ausführungsform mittels Haltevor¬ richtungen, bei denen es sich vorzugsweise um Klemmvorrichtun¬ gen handelt, welche den vorderen und den hinteren Rand eines Bleches übergreifen können. Diese Haltevorrichtungen sind zweckmäßigerweise an Schienen in deren Längsrichtung verstell¬ bar vorgesehen, um ihre Position an die Erfordernisse der unterschiedlich langen Werkstücke anpassen zu können. Da man jedoch den Anfang des Werkstückes stets an derselben Stelle vorsehen kann, genügt für die den Anfang des Werkstückes erfas¬ sende Haltevorrichtung eine Verschiebbarkeit entsprechend der Breite des zu erfassenden und dann wieder freizugebenden Ran¬ des. Diese Verschiebung wird bei einer bevorzugten Ausführungs¬ form mittels eines schwenkbaren Betätigungshebels bewirkt.In a preferred embodiment, the generally tabular workpieces are fixed by means of holding devices, which are preferably clamping devices which can overlap the front and rear edges of a sheet. These holding devices are expediently provided on rails which can be adjusted in the longitudinal direction in order to be able to adapt their position to the requirements of the workpieces of different lengths. However, since the beginning of the workpiece can always be provided at the same location, it is sufficient for the holding device which detects the beginning of the workpiece to be displaceable in accordance with Width of the edge to be detected and then released again. In a preferred embodiment, this displacement is effected by means of a pivotable actuating lever.
Das vorzugsweise im Querschnitt U-artige Maschinengestell weist vorteilhafterweise zwischen den beiden Schenkeln eine Lauf¬ schiene für den Wagen auf. Die Anlageflächen können dann im Bereich der freien Enden der beiden Schenkel vorgesehen sein. An dieser Laufschiene ist der Wagen vorzugsweise gemäß Anspruch 11 geführt. Es können dann problemlos die auftretenden Kräfte in die Laufschiene eingeleitet werden. Dies gilt auch für die durch den Antrieb bedingte Kraft, wenn am Wagen ein von einem Elektromotor angetriebenes Ritzel vorgesehen ist, das in eine an der Schiene vorgesehene Zahnstange eingreift.The machine frame, which is preferably U-shaped in cross section, advantageously has a running rail for the carriage between the two legs. The contact surfaces can then be provided in the region of the free ends of the two legs. On this track, the carriage is preferably performed according to claim 11. The forces that occur can then be introduced into the running rail without any problems. This also applies to the force caused by the drive if a pinion driven by an electric motor is provided on the carriage and engages in a toothed rack provided on the rail.
Bei einer bevorzugten Ausführungsform hat der Wagen eine Aus¬ bildung gemäß den Ansprüchen 12 und 13. Der Querschnitt des Verbindungsstückes kann dann relativ gering gewählt werden.In a preferred embodiment, the carriage has a design according to claims 12 and 13. The cross section of the connecting piece can then be chosen to be relatively small.
Damit die Werkstücke während des Falzvorganges die richtige Lage haben und beibehalten, ist wenigstens das erste Falzrol¬ lenpaar gemäß Anspruch 14 ausgebildet. Ferner ist es zur Anpas¬ sung an unterschiedliche Werkstücke zweckmäßig, zumindest die eine Falzrolle jedes Falzrollenpaares höhenverstellbar an der Haltevorrichtung anzuordnen.So that the workpieces have the correct position and maintain during the folding process, at least the first pair of folding rollers is designed according to claim 14. Furthermore, for adaptation to different workpieces, it is expedient to arrange at least one folding roller of each pair of folding rollers to be height-adjustable on the holding device.
Im folgenden ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels im einzelnen erläutert. Es zeigenThe invention is explained in detail below using an exemplary embodiment shown in the drawing. Show it
Fig. 1 eine Stirnansicht des Ausführungsbeispiels ohne Falzrollen und deren Tragvorrichtung;Figure 1 is an end view of the embodiment without folding rollers and their support device.
Fig. 2 eine Draufsicht auf das Ausführungsbeispiel; Fig. 3 einen Querschnitt des Wagens;Fig. 2 is a plan view of the embodiment; 3 shows a cross section of the carriage.
Fig. 4 eine Seitenansicht des Wagens und der ihn tragenden Laufschiene;Fig. 4 is a side view of the carriage and the running rail carrying it;
Fig. 5 einen Schnitt der Tragvorrichtung nach der Linie V - V der Fig. 4;5 shows a section of the carrying device along the line V - V of FIG. 4.
Fig. 6 einen Schnitt des Steges der Tragvorrichtung nach der Linie VI - VI der Fig. 5;6 shows a section of the web of the carrying device along the line VI - VI of FIG. 5.
Fig. 7 eine Draufsicht auf die oberen Falzrollen der Falzrollenpaare, einen Anschlag für die von den Falzrollen erfaßte Blechtafel und die die Blechtafel festhaltenden Klemmvorrichtungen;7 shows a plan view of the upper folding rollers of the folding roller pairs, a stop for the sheet metal sheet gripped by the folding rollers and the clamping devices holding the sheet metal sheet.
Fig. 8 eine Draufsicht auf eine Klemmvorrichtung im eingebauten Zustand;8 shows a plan view of a clamping device in the installed state;
Fig. 9 einen Schnitt nach der Linie IX - IX der Fig. 8;9 shows a section along the line IX-IX of FIG. 8;
Fig. 10 die durch die Falzrollenpaare erzeugtenFig. 10 generated by the folding roller pairs
Schritte der Verformung von zwei durch Falzen miteinander zu verbindenden Blechen.Steps of deforming two sheets to be joined together by folding.
Eine Falzmaschine hat, wie Fig. 1 zeigt, ein im Querschnitt U-ähnliches Maschinengestell 1, dessen Jochteil 2 den Fuß des Maschinengestells bildet. Der eine, etwas kürzere Schenkel 3 des Maschinengestells 1 erstreckt sich vertikal nach oben und ist im Bereich seines oberen Endes zur Bildung einer Auflage¬ fläche 4 verbreitert. Die Auflagefläche 4 ist gegen den ande¬ ren, etwas längeren Schenkel 5 hin geneigt, und zwar gegenüber der Horizontalen um einen Winkel von etwa 20c . Der Schenkel 5 ist an seinem oberen Ende gegen den anderen Schenkel 3 hin abgewinkelt und ebenfalls zur Bildung einer Auflagefläche 6 verbreitert. Diese wie die Auflagefläche 4 eben ausgebildete Auflagefläche 6 verläuft lotrecht zu der durch die Auflageflä¬ che 4 definierten Ebene. Sie schließt deshalb mit der Vertika¬ len einen Winkel von etwa 20° ein.A folding machine has, as shown in FIG. 1, a machine frame 1 which is U-like in cross section, the yoke part 2 of which forms the foot of the machine frame. The one, somewhat shorter leg 3 of the machine frame 1 extends vertically upwards and is widened in the region of its upper end to form a support surface 4. The bearing surface 4 is inclined towards the other, somewhat longer leg 5, namely at an angle of approximately 20 c with respect to the horizontal. The leg 5 is angled at its upper end against the other leg 3 and also widened to form a support surface 6. This support surface 6, which is of a flat design like the support surface 4, runs perpendicular to the plane defined by the support surface 4. It therefore forms an angle of approximately 20 ° with the vertical.
An der nach innen weisenden Seite des Schenkels 3 ist an diesem geringfügig unterhalb der Auflagefläche 4 eine nach oben offene U-Schiene 7 festgelegt, die, wie Fig. 2 zeigt, über die beiden Stirnseiten des Schenkels 3 übersteht. Eine entsprechende U-Schiene 8 ist an der Unterseite des abgewinkelten Endab¬ schnitts des Schenkels 5 so befestigt, daß sie ebenfalls nicht in die durch die Auflagefläche 6 definierte Ebene hineinragt. Auch die U-Schiene 8 steht über die beiden Stirnseiten des Schenkels 5 über. Die beiden U-Schienen 7 und 8 dienen der längsverstellbaren Aufnahme von je zwei Klemmvorrichtungen 9 bzw. 10, mittels denen der vordere bzw. hintere Rand der Blech¬ tafeln übergriffen und festgeklemmt werden kann. Die den vorde¬ ren Rand, also denjenigen Rand, an dem der Falzvorgang beginnt, erfassenden Klemmvorrichtungen 9 weisen, wie Fig. 8 und 9 zei¬ gen, einen in der U-Schiene 7 bzw. 8 liegenden, blockförmigen Grundkörper 11 auf, dessen Oberseite geringfügig über die offe¬ ne Seite der U-Schiene übersteht. In diesem Grundkörper 11 ist ein doppelarmiger Schwenkhebel 12 um eine quer zur Längsrich¬ tung der U-Schiene und parallel zu deren Jochteil liegende Ach¬ se 13 schwenkbar gelagert. Zu diesem Zwecke erstrecken sich zwei Wangen vom Schwenkhebel 12 in je eine seitliche Aussparung des Grundkörpers 11 hinein, wie die Fig. 8 und 9 zeigen. Der Schwenkhebel 12 hat einen langen Arm 12' , welcher an seinem freien Ende in einem Schlitz drehbar um eine zur Achse 13 parallele Achse einen Exzenter 14 trägt, welcher auf der Ober¬ seite des Grundkörpers 11 aufliegt und mittels eines Handhebels 15 gedreht werden kann. Der kurze Arm 12" des Schwenkhebels 12 weist zur Maschinenmitte hin und trägt in einem Gewinde eine Klemmschraube 16, zwischen der und der hier aufgerauht ausge¬ bildeten Oberseite des Grundkörpers 11 eine Blechtafel einge¬ klemmt werden kann. Dank der Klemmschraube 16 kann die Klemm¬ vorrichtung 9 an unterschiedliche Tafeldicken angepaßt werden.On the inward-facing side of the leg 3, an upwardly open U-rail 7 is fixed to it slightly below the support surface 4 and, as shown in FIG. 2, projects beyond the two end faces of the leg 3. A corresponding U-rail 8 is attached to the underside of the angled end section of the leg 5 such that it likewise does not protrude into the plane defined by the support surface 6. The U-rail 8 also projects beyond the two end faces of the leg 5. The two U-rails 7 and 8 serve for the longitudinally adjustable reception of two clamping devices 9 and 10, by means of which the front and rear edge of the metal sheets can be gripped and clamped. The clamping devices 9 which detect the front edge, that is to say the edge at which the folding process begins, have, as shown in FIGS. 8 and 9, a block-shaped base body 11 located in the U-rails 7 and 8, respectively The upper side protrudes slightly beyond the open side of the U-rail. In this base body 11, a double-armed pivot lever 12 is pivotally mounted about an axis 13 lying transversely to the longitudinal direction of the U-rail and parallel to its yoke part. For this purpose, two cheeks extend from the pivot lever 12 into a lateral recess in the base body 11, as shown in FIGS. 8 and 9. The pivot lever 12 has a long arm 12 ', which at its free end rotates in a slot about an axis parallel to the axis 13, an eccentric 14 which rests on the upper side of the base body 11 and can be rotated by means of a hand lever 15. The short arm 12 "of the pivot lever 12 points to the center of the machine and carries in a thread a clamping screw 16, between which and the roughened top of the base body 11 a sheet metal plate can be clamped. Thanks to the clamping screw 16, the clamping device 9 can be adapted to different panel thicknesses.
Wie die Fig. 8 und 9 zeigen, ist der Grundkörper 11 mit einer nach oben offenen Quernut 20 versehen, die von einer in der U-Schiene drehbar gelagerten Welle 17 durchdrungen wird, von der in radialer Richtung ein Verschiebeelement 18 wie der Bart eines Schlüssels absteht. Mittels eines Hebels 19 kann die Wel¬ le 17 und das Verschiebeelement 18 geschwenkt werden. Bei der in Fig. 8 dargestellten Schwenklage liegt das Verschiebeelement 18 an der einen Flanke der Quernut 20 an und hält deshalb die Klemmvorrichtung 9 am einen Ende ihres Verschiebeweges in der U-Schiene fest. Wird der Hebel 19 um 180° geschwenkt, dann kommt das Verschiebeelement 18 an der anderen Flanke der Quer¬ nut 20 in Anlage und verschiebt die Klemmvorrichtung in ihre andere Endstellung. Der gesamte Verschiebeweg ist etwas größer gewählt als die Tiefe des Klemmaules, das vom kurzen Arm 12' und dem ihm gegenüberliegenden Abschnitt des Grundkörpers 11 gebildet wird, damit die Klemmvorrichtung 9 durch eine Schwenk¬ bewegung des Hebels 19 um 180° bei einer Blickrichtung gemäß Fig. 8 entgegen dem Uhrzeigersinn soweit zurückgezogen werden kann, daß der zunächst übergriffene Rand einer Blechtafel frei¬ gegeben wird.8 and 9 show, the base body 11 is provided with an upwardly open transverse groove 20, which is penetrated by a shaft 17 rotatably mounted in the U-rail, from which a displacement element 18 in the radial direction like the beard of a key protrudes. The shaft 17 and the displacement element 18 can be pivoted by means of a lever 19. In the pivot position shown in FIG. 8, the displacement element 18 rests on the one flank of the transverse groove 20 and therefore holds the clamping device 9 firmly in the U-rail at one end of its displacement path. If the lever 19 is pivoted through 180 °, the displacement element 18 comes into contact with the other flank of the transverse groove 20 and displaces the clamping device into its other end position. The entire displacement path is chosen to be somewhat greater than the depth of the clamping mouth, which is formed by the short arm 12 'and the section of the base body 11 lying opposite it, so that the clamping device 9 can be moved through a pivoting movement of the lever 19 by 180 ° in a viewing direction according to FIG 8 can be retracted counterclockwise to the extent that the edge of a sheet metal sheet that has been overlapped is released.
Die beiden Klemmvorrichtungen 10, welche den hinteren Rand der Blechtafeln erfassen, müssen wegen der unterschiedlichen Länge der Blechtafeln über eine größere Strecke in der U-Schiene ver¬ schiebbar sein. Sie sind deshalb nicht mit der durch die Welle 17 und das Verschiebeelement 18 gebildeten Verschiebevorrich¬ tung versehen, sondern mit einer Spannvorrichtung, welche den Grundkörper in der U-Schiene zwischen deren beiden parallelen Schenkeln festspannt. Im übrigen sind sie wie die Klemmvorrich¬ tungen 9 ausgebildet.The two clamping devices 10, which grip the rear edge of the metal sheets, must be displaceable over a greater distance in the U-rail because of the different lengths of the metal sheets. They are therefore not provided with the displacement device formed by the shaft 17 and the displacement element 18, but rather with a tensioning device which parallelizes the base body in the U-rail between its two Thighs tight. Otherwise, they are designed like the clamping devices 9.
Um die zu falzenden Werkstücke, beispielsweise die beiden in Fig. 1 dargestellten Blechtafeln 38 und 39, in die für die Aus¬ führung des Falzvorganges richtige Lage bringen zu können, ist eine Anschlagschiene 21 vorgesehen, die parallel zu den U-Schienen 7 und 8 verläuft und von zwei Schwenkarmen 22 getra¬ gen wird, die mit zu den U-Schienen 7 und 8 paralleler, hori¬ zontaler Schwenkachse 23 am Schenkel 5 schwenkbar gelagert sind. Bei horizontaler Lage der Schwenkarme 22 ist die Anschlagschiene 21 nach oben offen, so daß in sie die an der Auflagefläche 6 anliegende Blechtafel 39 eingreifen kann. Sobald diese Blechtafel mittels Klemmvorrichtungen 9 und 10 festgeklemmt ist, wird die Anschlagschiene 21 nach unten wegge¬ schwenkt. Hierzu wird das über die Außenseite des Schenkels 5 überstehende Ende der Schwenkarme 22 nach oben geschwenkt.In order to be able to bring the workpieces to be folded, for example the two metal sheets 38 and 39 shown in FIG. 1, into the correct position for carrying out the folding process, a stop rail 21 is provided which is parallel to the U-rails 7 and 8 runs and is carried by two swivel arms 22, which are pivotably mounted on the leg 5 with a horizontal swivel axis 23 parallel to the U-rails 7 and 8. When the swivel arms 22 are in a horizontal position, the stop rail 21 is open at the top, so that the sheet-metal plate 39 resting on the support surface 6 can engage in it. As soon as this sheet of metal is clamped by means of clamping devices 9 and 10, the stop rail 21 is pivoted downward. For this purpose, the end of the swivel arms 22 projecting beyond the outside of the leg 5 is swiveled upward.
Zwischen den beiden Schenkeln 3 und 5 ist an der nach oben wei¬ senden Seite des Jochteils 2 eine Laufschiene 24 festgelegt, welche sich in Längsrichtung des vom Jochteil 2 und den Schen¬ keln 3 und 5 begrenzten Kanals über die Stirnseiten des Maschi¬ nengestells 1 hinaus erstreckt, und zwar in einem Maße, das größer ist als der Überstand der U-Schienen 7 und 8. Der obere Teil der Laufschiene 24 bildet ein Doppel-T-Profil. Die Lauf¬ schiene 24 trägt einen als Ganzes mit 25 bezeichneten Wagen, der seinerseits eine Falzvorrichtung 26 trägt. Wie Fig. 3 zeigt, greifen Laufräder 27 des Wagens 25 zwischen die Quertei¬ le der Laufschiene 24 ein, wodurch der Wagen formschlüssig ge¬ gen eine Verschiebung quer zur Längserstreckung der Laufschiene 24 gesichert ist. Neben einem der Laufräder 27 ist ein Ritzel 28 angeordnet, das mit einer an der Unterseite des oberen Quer¬ teils der Laufschiene 24 vorgesehenen Zahnstange 29 kämmt. Angetrieben wird das Ritzel 28 von einem ebenfalls im Laufwagen- 25 angeordneten Elektrogetriebemotor, der wahlweise in der ei¬ nen oder anderen Drehrichtung betrieben werden kann. Der An¬ trieb des Ritzels kann beispielsweise über eine Kette erfolgen.Between the two legs 3 and 5, on the upward-facing side of the yoke part 2, a running rail 24 is fixed, which extends in the longitudinal direction of the channel delimited by the yoke part 2 and the legs 3 and 5 via the end faces of the machine frame 1 extends, to an extent that is greater than the protrusion of the U-rails 7 and 8. The upper part of the running rail 24 forms a double-T profile. The running rail 24 carries a carriage designated as a whole by 25, which in turn carries a folding device 26. As shown in FIG. 3, wheels 27 of the carriage 25 engage between the transverse parts of the running rail 24, as a result of which the carriage is positively secured against displacement transverse to the longitudinal extension of the running rail 24. In addition to one of the running wheels 27, a pinion 28 is arranged, which meshes with a toothed rack 29 provided on the underside of the upper transverse part of the running rail 24. The pinion 28 is driven by a also in the carriage 25 arranged electric gear motor, which can be operated either in one or the other direction of rotation. The pinion can be driven, for example, via a chain.
Der im Querschnitt U-artige Wagen 25 trägt auf einer Plattform 30, von der aus sich die die Laufräder 27 tragenden Schenkel zu beiden Seiten der Laufschiene 24 nach unten erstrecken, eine langgestreckte, sich in Fahrtrichtung des Wagens 25 erstrecken¬ de Tragvorrichtung 31 für mehrere, in der Fahrtrichtung hinter¬ einander angeordnete Falzrollenpaare 32.The carriage 25, which is U-shaped in cross section, carries an elongated support device 31 for several on a platform 30, from which the legs carrying the wheels 27 extend downwards on both sides of the running rail 24, extending in the direction of travel of the carriage 25 , pairs of folding rollers 32 arranged one behind the other in the direction of travel.
Wie Fig. 5 zeigt, besteht die Tragvorrichtung 31 aus einem stabförmigen Unterteil 33 und einem ebenfalls stabförmigen Oberteil 34, welche durch einen entsprechend der Schräglage der Anlagefläche geneigt liegenden, schmalen Steg 35 miteinander verbunden sind. Dieser Steg 35 läuft, wie Fig. 6 zeigt, in sei¬ ner hinteren Hälfte keilförmig aus, weil hier die miteinander zu verbindenden Randzonen der beiden Bleche zusammengeführt werden müssen. Wie insbesondere Fig. 4 zeigt, stehen der Unter¬ teil 33 und der Oberteil 34 in dem für die Aufnahme der Falz¬ rollenpaare 32 erforderlichen Maße über den Steg 35 über. Im Ausführungsbeispiel ist der Steg 35 zwischen dem zweiten und dritten Falzrollenpaar angeordnet.5 shows, the carrying device 31 consists of a rod-shaped lower part 33 and a likewise rod-shaped upper part 34, which are connected to one another by a narrow web 35 which is inclined in accordance with the inclined position of the contact surface. This web 35, as shown in FIG. 6, runs out in a wedge shape in its rear half, because here the edge zones of the two sheets to be connected have to be brought together. As shown in FIG. 4 in particular, the lower part 33 and the upper part 34 protrude beyond the web 35 to the extent necessary for receiving the folding roller pairs 32. In the exemplary embodiment, the web 35 is arranged between the second and third pair of folding rollers.
Die oberen Falzrollen jedes Falzrollenpaares 32 sind, wie ins¬ besondere Fig. 3 zeigt, auf je einem aus dem Oberteil 34 herausragenden Lagerzapfen drehbar gelagert. Eine entsprechende Lagerung könnte auch für die unteren Falzrollen vorgesehen sein. Im Ausführungsbeispiel sind diese aber, wie Fig. 3 eben¬ falls zeigt, in je einem U-artigen Halter 36 drehbar gelagert, der höhenverstellbar mit dem Unterteil 33 verbunden ist. Zumin¬ dest die Falzrollen des ersten Falzrollenpaares 32 sind, wie Fig. 7 zeigt, leicht schräg gestellt, um die Blechtafel 38 quer zur Fahrtrichtung des Wagens 25 gegen einen am Maschinengestell 1 vorgesehenen Anschlag 37 zu drücken, damit gewährleistet ist, daß die Blechtafel 38 während des Falzvorganges am Anschlag 37 anliegt. Selbstverständlich ist es möglich, auch die Achsen nachfolgender Falzrollenpaare 32 entsprechend schräg zu stel¬ len. In der Regel wird dies aber nicht erforderlich sein.The upper folding rollers of each pair of folding rollers 32 are, as shown in FIG. 3 in particular, rotatably mounted on a bearing pin protruding from the upper part 34. Appropriate storage could also be provided for the lower folding rollers. In the exemplary embodiment, however, as is also shown in FIG. 3, they are each rotatably mounted in a U-type holder 36, which is connected to the lower part 33 in a height-adjustable manner. At least the folding rollers of the first pair of folding rollers 32 are, as shown in FIG. 7, slightly inclined around the metal sheet 38 transversely to the direction of travel of the carriage 25 against one on the machine frame 1 provided stop 37 to be pressed, so that it is ensured that the metal sheet 38 abuts the stop 37 during the folding process. Of course, it is also possible to set the axes of subsequent pairs of folding rollers 32 accordingly at an angle. As a rule, however, this will not be necessary.
Sollen die Blechtafeln 38 und 39, die im rechten Winkel zuei¬ nander liegen, längs ihrer einen Randzone durch Falzen mitei¬ nander verbunden werden, werden diese beiden Blechtafeln 38 und 39 so auf die Auflägeflächen 4 bzw. 6 gelegt, wie dies Fig. 1 zeigt. Der untere Rand der Blechtafel 39 liegt dabei am Grund der Anschlagschiene 21 an. Der der Blechtafel 39 zugewandte Rand der Blechtafel 38 weist dabei auf eine parallel und im Abstand von dem in der Anschlagschiene 21 liegenden Rand ver¬ laufenden Linie. Nun werden die beiden Blechtafeln 38 und 39 mit Hilfe der Klemmvorrichtungen 9 und 10 festgelegt. Sodann wird die Anschlagschiene 21 nach unten geschwenkt, damit nun der Wagen 25 gegen das vordere Ende der beiden Blechtafeln 38 und 39 bewegt werden kann. Das erste der vom Wagen 25 getrage¬ nen Falzrollenpaare 32 deformiert zunächst nur den Rand der Blechtafel 38 im Sinne einer doppelten Abkröpfung, wie dies in Fig. 10 oben dargestellt ist. Das zweite Falzrollenpaar 32 bil¬ det aus dieser doppelt abgekröpften Randzone ein nach unten offenes U-Profil. Das dritte Falzrollenpaar biegt die Randzone der Blechtafel 39 nach innen ab und das vierte Falzrollenpaar drückt den abgebogenen Blechstreifen nach oben, so daß, wie Fig. 10 zeigt, der lange Schenkel des U-Profils der Blechtafel 38 vom Falz der Blechtafel 39 aufgenommen wird. Nun wird dieser Falz vom fünften Falzrollenpaar nach innen abgebogen und, wie Fig. 10 zeigt, vom sechsten Falzrollenpaar in die Vertiefung gedrückt, welche durch die doppelte Abkröpfung der Blechtafel 38 zunächst gebildet worden ist.If the metal sheets 38 and 39, which are at right angles to one another, are to be joined together by folding along their one edge zone, these two metal sheets 38 and 39 are placed on the bearing surfaces 4 and 6, as shown in FIG. 1 shows. The lower edge of the metal plate 39 lies against the bottom of the stop rail 21. The edge of the metal plate 38 facing the metal plate 39 has a line running parallel and at a distance from the edge located in the stop rail 21. Now the two metal sheets 38 and 39 are fixed with the aid of the clamping devices 9 and 10. Then the stop rail 21 is pivoted downward so that the carriage 25 can now be moved towards the front end of the two metal sheets 38 and 39. The first of the pairs of folding rollers 32 carried by the carriage 25 initially deforms only the edge of the metal sheet 38 in the sense of a double offset, as shown in FIG. 10 above. The second pair of folding rollers 32 forms a U-profile which is open at the bottom from this double cranked edge zone. The third pair of folding rollers bends the edge zone of the sheet 39 inwards and the fourth pair of folding rollers presses the bent sheet metal strip upward, so that, as shown in FIG. 10, the long leg of the U-profile of the sheet 38 is received by the fold of the sheet 39. Now this fold is bent inwards by the fifth pair of folding rollers and, as shown in FIG. 10, is pressed into the depression by the sixth pair of folding rollers, which was initially formed by double bending of the sheet metal plate 38.
Sobald der Wagen 25 das hintere Ende der beiden Blechtafeln 38 und 36 freigegeben hat, können die Klemmvorrichtungen 9 und 10 gelöst werden. Sofern aus den beiden Blechtafeln 38 und 39 bei¬ spielsweise ein Kanal gebildet werden soll, brauchen diese Blechtafeln nur um die Kanallängsachse gedreht zu werden, was wesentlich einfacher ist als der Transport der Blechtafeln. Ferner müssen die Blechtafeln 38 und 39 während der Falzvorgän¬ ge nicht festgehalten werden. Die Bedienungsperson braucht des¬ halb nur für die Falzvorgänge den Antriebsmotor des Wagens ein- und auszuschalten.As soon as the carriage 25 reaches the rear end of the two metal sheets 38 and 36 has released, the clamping devices 9 and 10 can be released. If, for example, a channel is to be formed from the two metal sheets 38 and 39, these metal sheets only need to be rotated about the longitudinal axis of the channel, which is much easier than the transport of the metal sheets. Furthermore, the metal sheets 38 and 39 do not have to be held in place during the folding processes. The operator therefore only needs to switch the drive motor of the carriage on and off for the folding processes.
Alle in der vorstehenden Beschreibung erwähnten sowie auch die nur allein aus der Zeichnung entnehmbaren Merkmale sind als weitere Ausgestaltungen Bestandteile der Erfindung, auch wenn sie nicht besonders hervorgehoben und insbesondere nicht in den Ansprüchen erwähnt sind. All of the features mentioned in the above description and also the features that can only be inferred from the drawing are further refinements of the invention, even if they are not particularly emphasized and in particular are not mentioned in the claims.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Falzmaschine zum Verbinden der Ränder von Blechen durch Falzen mit einem Maschinengestell, das Anlageflächen für die zu falzenden Bleche hat und eine aus mehreren Falzrol¬ lenpaaren bestehende Falzvorrichtung trägt, wobei die Falzrollenpaare an einem Wagen vorgesehen sind, der mit¬ tels einer Antriebsvorrichtung längs einer Führung des Maschinengestells bewegbar ist, d a d u r c h g e k e n n z e i c h n e t , daß das Maschinengestell (1) ein U-artiges Querschnitts¬ profil hat und je eine der beiden Anlageflächen (4, 6) für die zu falzenden Bleche (38, 39) im Bereich eines oberen Endes der beiden nach oben weisenden U-Schenkel (3, 5) des Maschinengestells vorgesehen ist, daß an einem die beiden U-Schenkel (3, 5) miteinander verbindenden Jochteil (2) des Maschinengestells (1) im Bereich zwischen den Schen¬ keln (3, 5) eine die Führung für den Wagen (25) bildende Laufschiene (24) befestigt ist, und daß die beiden Anlage¬ flächen (4, 6) einen Winkel von 90° zwischen sich ein¬ schließen.1. Folding machine for connecting the edges of sheets by folding with a machine frame that has contact surfaces for the sheets to be folded and carries a folding device consisting of several pairs of folding rollers, the pairs of folding rollers being provided on a carriage which is arranged lengthwise by means of a drive device a guide of the machine frame is movable, characterized in that the machine frame (1) has a U-like cross-sectional profile and one of the two contact surfaces (4, 6) for the sheets (38, 39) to be folded in the region of an upper end of the The two upward facing U-legs (3, 5) of the machine frame provide that on a yoke part (2) of the machine frame (1) connecting the two U-legs (3, 5) to each other in the area between the legs (3 , 5) a guide rail (24) forming the guide for the carriage (25) is fastened, and that the two contact surfaces (4, 6) form an angle of 90 ° between include themselves.
2. Falzmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Antriebsvorrichtung motorisch angetriebene, am Maschi¬ nengestell (1) abgestützte Zug- oder Schubmittel (28, 29) aufweist.2. Folding machine according to claim 1, characterized in that the drive device has motor-driven, on the machine frame (1) supported traction or pushing means (28, 29).
3. Falzmaschine nach Anspruch 3, dadurch gekennzeichnet, daß die Zug- oder Schubmittel aus wenigstens einer sich in der Transportrichtung des Wagens (25) erstreckenden Zahnstange (29) und wenigstens einem mit der Zahnstange (29) kämmen¬ den Zahnrad (28) bestehen.3. Folding machine according to claim 3, characterized in that the traction or pushing means from at least one in the Direction of transport of the carriage (25) extending rack (29) and at least one with the rack (29) combing gear (28) exist.
4. Falzmaschine nach Anspruch 3, dadurch gekennzeichnet, daß die Zahnstange (29) fest mit dem Maschinengestell (1) ver¬ bunden, und das Zahnrad (28) über ein Getriebe von einem am Wagen (25) angeordneten Elektromotor angetrieben ist.4. Folding machine according to claim 3, characterized in that the rack (29) with the machine frame (1) ver¬ connected, and the gear (28) is driven by a gear from an on the carriage (25) arranged electric motor.
5. Falzmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die eine (6) der beiden Anlageflächen (4, 6) aus der Ver¬ tikalen heraus geringfügig von der anderen Anlagefläche (4) weggeneigt ist.5. Folding machine according to claim 1, characterized in that one (6) of the two contact surfaces (4, 6) from the vertical is slightly inclined away from the other contact surface (4).
6. Falzmaschine nach Anspruch 1, gekennzeichnet durch eine Schwenkvorrichtung mit wenigstens einem Schwenkarm (22), der um eine zur Fahrtrichtung des Wagens (25) parallele Achse (23) schwenkbar am Maschinengestell (1) gelagert ist und im Abstand von dieser Achse (23) eine zu ihr parallele Anschlagschiene (21) trägt, welche sich ihrerseits in einer verriegelbaren Arbeitsstellung des Schwenkarms (22) im Abstand unterhalb des unteren Endes der einen Anlage¬ fläche (6) befindet.6. Folding machine according to claim 1, characterized by a swivel device with at least one swivel arm (22) which is pivotally mounted about an axis (23) parallel to the direction of travel of the carriage (25) on the machine frame (1) and at a distance from this axis (23 ) carries a stop rail (21) parallel to it, which in turn is located in a lockable working position of the swivel arm (22) at a distance below the lower end of one contact surface (6).
7. Falzmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß jeder der beiden Anlageflächen (4, 6) zwei Haltevorrichtungen (9, 10) zugeordnet sind, mittels deren ein an der Anlagefläche (4, 6) anliegendes Blech oder dergleichen im Bereich seines vorderen bzw. hinteren Randes mit dem Maschinengestell (1) verbindbar ist.7. Folding machine according to one of claims 1 to 6, characterized in that each of the two contact surfaces (4, 6) are assigned two holding devices (9, 10) by means of which a sheet or the like resting on the contact surface (4, 6) in Area of its front or rear edge can be connected to the machine frame (1).
8. Falzmaschine nach Anspruch 7, dadurch gekennzeichnet, daß die beiden Paare von Haltevorrichtungen (9, 10) an je einer fest mit dem Maschinengestell (1) verbundenen und sich in Fahrtrichtung des Wagens (25) erstreckenden Schie¬ ne (7, 8) vorgesehen sind.8. Folding machine according to claim 7, characterized in that the two pairs of holding devices (9, 10) on one each firmly connected to the machine frame (1) and rails (7, 8) extending in the direction of travel of the carriage (25) are provided.
9. Falzmaschine nach Anspruch 8, dadurch gekennzeichnet, daß die Haltevorrichtungen (9, 10) als den Rand des festzuhal¬ tenden Bleches (38, 39) übergreifende Klemmvorrichtungen ausgebildet sind.9. Folding machine according to claim 8, characterized in that the holding devices (9, 10) as the edge of the sheet to be held (38, 39) overlapping clamping devices are formed.
10. Falzmaschine nach Anspruch 9, dadurch gekennzeichnet, daß wenigstens die eine der beiden Haltevorrichtungen (9, 10) jedes Paares mittels eines Betätigungshebels (5) in einem das Ausmaß des Übergreifens etwas überschreitenden Betrag in Längsrichtung der Schiene (7, 8) verschiebbar mit der Schiene verbunden ist.10. Folding machine according to claim 9, characterized in that at least one of the two holding devices (9, 10) of each pair by means of an actuating lever (5) in a slightly exceeding the extent of the overlap amount in the longitudinal direction of the rail (7, 8) with the rail is connected.
11. Falzmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Wagen (25) in Fahrtrichtung mit in gegenseitigem Abstand angeordneten Laufrädern (27) versehen ist, welche an der Laufschiene (24) sowohl in horizontaler als auch in vertikaler Richtung formschlüssig angreifen.11. Folding machine according to claim 1, characterized in that the carriage (25) is provided in the direction of travel with mutually spaced wheels (27) which engage on the running rail (24) positively in both the horizontal and vertical directions.
12. Falzmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Wagen (25) eine sich in Fahrtrichtung erstreckende Tragvorrichtung (31) für die in Fahrtrichtung hintereinan¬ der angeordneten Falzrollenpaare (32) trägt.12. Folding machine according to claim 1, characterized in that the carriage (25) carries a carrier device (31) extending in the direction of travel for the pairs of folding rollers (32) arranged one behind the other in the direction of travel.
13. Falzmaschine nach Anspruch 12, dadurch gekennzeichnet, daß ein stabförmiger Oberteil (34) der Tragvorrichtung (31) zwischen dem ersten und letzten, vorzugsweise zwischen dem zweiten und dem dritten Falzrollenpaar (32) über einen Verbindungssteg (35) starr mit einem stabförmigen Unter¬ teil (33) und dem Wagen (25) verbunden ist.13. Folding machine according to claim 12, characterized in that a rod-shaped upper part (34) of the support device (31) between the first and last, preferably between the second and the third pair of folding rollers (32) via a connecting web (35) rigid with a rod-shaped lower ¬ part (33) and the carriage (25) is connected.
14. Falzmaschine nach Anspruch 1, dadurch gekennzeichnet, daß zumindest das erste Falzrollenpaar (32) eine das Werkstück quer zur Fahrtrichtung gegen einen Anschlag (37) drückende Winkellage seiner Drehachsen aufweist.14. Folding machine according to claim 1, characterized in that at least the first pair of folding rollers (32) has an angular position of its axes of rotation pressing the workpiece transversely to the direction of travel against a stop (37).
15. Falzmaschine nach Anspruch 1, dadurch gekennzeichnet, daß zumindest eine Falzrolle jedes Falzrollenpaares (32) höhenverstellbar an der Haltevorrichtung (31) angeordnet ist. 15. Folding machine according to claim 1, characterized in that at least one folding roller of each pair of folding rollers (32) is arranged height-adjustable on the holding device (31).
EP90905497A 1989-05-20 1990-04-03 Folding machine, especially for joining the edges of metal sheets by folding Expired - Lifetime EP0472530B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90905497T ATE86895T1 (en) 1989-05-20 1990-04-03 FOLDING MACHINE, PARTICULARLY FOR JOINING THE EDGES OF SHEET METAL BY FOLDING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3916445 1989-05-20
DE3916445A DE3916445A1 (en) 1989-05-20 1989-05-20 FOLDING MACHINE, IN PARTICULAR TO CONNECT THE EDGES OF SHEETS BY FOLDING

Publications (2)

Publication Number Publication Date
EP0472530A1 true EP0472530A1 (en) 1992-03-04
EP0472530B1 EP0472530B1 (en) 1993-03-17

Family

ID=6381036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90905497A Expired - Lifetime EP0472530B1 (en) 1989-05-20 1990-04-03 Folding machine, especially for joining the edges of metal sheets by folding

Country Status (6)

Country Link
US (1) US5184384A (en)
EP (1) EP0472530B1 (en)
JP (1) JP2915570B2 (en)
CA (1) CA2058295A1 (en)
DE (2) DE3916445A1 (en)
WO (1) WO1990014180A1 (en)

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Publication number Priority date Publication date Assignee Title
JP3494671B2 (en) * 1993-02-19 2004-02-09 三洋機工株式会社 Hemming equipment
DE19530923A1 (en) * 1995-08-23 1997-02-27 Reinhardt Gmbh Maschbau Folding machine
DE50207123D1 (en) * 2001-08-31 2006-07-20 Edag Eng & Design Ag ROLLFALZKOPF AND METHOD FOR FOLDING A FLANGE
JP5290913B2 (en) * 2009-08-25 2013-09-18 昭和電機株式会社 Centrifugal blower casing forming device
DE102018115382B4 (en) * 2018-06-26 2022-01-05 Roland Ruegenberg Joining of sheet metal end sections by means of forming
CN110523822B (en) * 2019-09-30 2024-06-25 马克菲尔（天津）柔性支挡有限公司 Automatic flanging device for metal net

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FR1444615A (en) * 1965-08-20 1966-07-01 Reinhardt Maschb G M B H Method and device for joining two edges of at least one thin plate
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Also Published As

Publication number Publication date
DE3916445A1 (en) 1990-11-22
WO1990014180A1 (en) 1990-11-29
JP2915570B2 (en) 1999-07-05
DE3916445C2 (en) 1992-05-27
US5184384A (en) 1993-02-09
CA2058295A1 (en) 1990-11-21
DE59001050D1 (en) 1993-04-22
EP0472530B1 (en) 1993-03-17
JPH04505126A (en) 1992-09-10

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