DE265161C

DE265161C -

Info

Publication number: DE265161C
Application number: DENDAT265161D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

KLASSE 7c. GRUPPECLASS 7c. GROUP

EMIL LANGE in CASSEL.EMIL LANGE in CASSEL.

Die Erfindung betrifft eine Maschine zum Abkanten von trapezförmigen Blechen beliebiger Länge mit mehreren hintereinander angeordneten Gruppen profilierter Abkantwalzen, welche sich bekannten ähnlichen Vorrichtungen gegenüber dadurch gekennzeichnet, daß das in die Maschine eintretende Blech nacheinander mit seiner Vorderkante Steuerungshebel umlegt, die durch Regelung der DruckluftzufuhrThe invention relates to a machine for folding any trapezoidal sheet metal Length with several groups of profiled folding rollers arranged one behind the other, which known similar devices are characterized in that the in the machine moves the incoming sheet metal one after the other with its front edge control lever, by regulating the compressed air supply

ίο zu Zylindern deren Kolben zum Andrücken von Führungsrollen gegen die nicht zu bearbeitende Längskante des Bleches zwingen, wobei die Abkantwerkzeuge als Gegenlager dienen, wogegen das die Maschine verlassende Blech an seiner Hinterkante die Steuerhebel nacheinander freigibt. Diese gehen unter der Wirkung einer Feder oder eines Druckmittels in ihre Anfangslage zurück, steuern dadurch die Druckluftzufuhr zu den Zylindern und bewegen die Führungsrollen zurück.ίο to cylinders with their pistons to press on Force of guide rollers against the not to be machined longitudinal edge of the sheet metal, whereby the folding tools serve as counter bearings, whereas the sheet metal leaving the machine releases the control levers one after the other at its rear edge. These go under the effect a spring or a pressure medium to its initial position, thereby controlling the compressed air supply to the cylinders and move the guide rollers back.

In den Zeichnungen ist eine Ausführungsform der neuen Maschine dargestellt, und zwar zeigt Fig. ι dieselbe in Vorderansicht, während Fig. 2 einen Grundriß wiedergibt. Fig. 3 stellt einen Querschnitt und Fig. 4 eine Seitenansicht dar. In Fig. 5 ist die pneumatische Andrückvorrichtung in teilweisem Längsschnitt dargestellt, wogegen Fig. 6 einen Querschnitt dieser Vorrichtung in vergrößertem Maßstabe wiedergibt.In the drawings, an embodiment of the new machine is shown, namely shows Fig. Ι the same in front view, while Fig. 2 shows a plan. Fig. 3 illustrates one Cross-section and FIG. 4 shows a side view. In FIG. 5 is the pneumatic pressing device shown in partial longitudinal section, whereas FIG. 6 shows a cross section of this device reproduces on an enlarged scale.

Auf einem Fuße 1 sind Maschinen 2, 3, 4, 5, 6, 7, 8 befestigt, von denen die Maschinen 2 bis 5 horizontal und vertikal gelagerte Walzen und die Maschinen 6 bis 8 nur vertikal gelagerte Walzen besitzen.Machines 2, 3, 4, 5, 6, 7, 8 are attached to a foot 1, of which machines 2 up to 5 horizontally and vertically mounted rollers and machines 6 to 8 only vertically mounted Own rollers.

Von der Antriebswelle 10 aus werden mittels. Zahnradübertragungen die Profilwalzen 23, 24, 25, 26 und 27 in Umdrehung versetzt. In gleicher Weise findet auch die Bewegungsübertragung auf die anderen Walzen statt.From the drive shaft 10 by means of. Gear transmissions the profile rollers 23, 24, 25, 26 and 27 offset in rotation. In the same The transfer of motion to the other rollers also takes place.

Das Blech 59 passiert nun zunächst die Maschine 2 und wird vorläufig lediglich durch die Walzen 43, 51 geführt bzw. transportiert, wobei ein abzukantender Streifen 60 von vorher bestimmter Breite aus dem Walzenpaar 43, 51 herausragt. Das durch das eben genannte Walzenpaar vortretende vordere Blechende gelangt dann zwischen das Walzenpaar 42, 50 und hierauf zu den übrigen Walzen, wobei es nach und nach in bekannter Art stufenweise abgekantet wird.The sheet 59 now first passes the machine 2 and is temporarily only through the Rollers 43, 51 guided or transported, with a beveled strip 60 of predetermined Width protrudes from the pair of rollers 43, 51. That through what has just been mentioned The front end of the sheet metal protruding from the pair of rollers then passes between the pair of rollers 42, 50 and then to the other rollers, gradually doing it in the known manner is folded.

Beim Abkanten trapezförmiger Bleche, um welche es sich hier handelt, ist der Hauptwert darauf zu legen, daß die nicht zu bearbeitende Kante elastisch geführt wird. Hierzu dienen Rollen mit vertikalen Achsen, die in Richtung auf die zu bearbeitende Kante nachgiebig gelagert sind und in dieser Richtung unter dem Einfluß einer bestimmten Kraft stehen.When folding trapezoidal sheets, which is what we are talking about here, is the main value to lay on the fact that the edge not to be processed is guided elastically. Serve for this Rollers with vertical axes, which are mounted resiliently in the direction of the edge to be machined and are under the influence of a certain force in this direction.

Eine derartige Andrückeinrichtung ist neben jeder der Maschinen 2 bis 5 angebracht und soll in ihrer Arbeitsweise nachstehend an Hand der Fig. 5 und 6 näher beschrieben werden.Such a pressing device is attached to each of the machines 2 to 5 and will be described in more detail below with reference to FIGS. 5 and 6 in their mode of operation.

Beim Durchgang des Bleches 59 (Fig. 2) durch die einzelnen Arbeitsmaschinen 2 bis 5 wird dasselbe jedesmal an einer Rolle 63 vorbeigeführt, und seine Vorderkante treibt jedesmal eine an einem Doppelhebel 64 angeordnete Rolle 65 vor sich her, so daß der Hebel 64 die in Fig. 6 punktiert gezeichnete Lage erhält.When the sheet 59 (FIG. 2) passes through the individual working machines 2 to 5 the same is fed past a roller 63 each time, and its leading edge drifts each time a arranged on a double lever 64 roller 65 in front of him, so that the lever 64 the in Fig. 6 is dotted position.

Der Doppelhebel 64 (Fig. 6) ist auf einer Welle 66 befestigt, die einen kleinen Kurbelzapfen 67 trägt. Dieser Kurbelzapfen steuertThe double lever 64 (Fig. 6) is mounted on a shaft 66 which has a small crank pin 67 carries. This crank pin controls

Claims

the slide 84 and, depending on the position of the slide, can be fed through the tube 13 Air at 85 or 86 passes into one of tubes 88 and 89 and the air from the other tubes escape through 87. The tubes 88, 89 are connected to the tubes 68, 69 (Fig. 5), see above that in the cylinder 62, depending on the position of the lever, air occurs behind or in front of the piston 76.

Instead of the usual loan indicated in FIG Mussel slide 84 could of course also be a piston slide, a valve or the like. step.

In the position of the lever 64 shown in dotted lines in FIG. 6, the compressed air passes through the Tubes 89, 69 on the right side of the piston 76 shown in FIG. 5 ', and the rod 77 pulls the roller 63 against the free edge of the metal sheet 59, which is not currently processed. The lever 64 is now held by the continuous sheet 59 in the position shown in dotted lines until the rear end of the plate leaves the roller 65. In this event a sudden occurs Reversal by snapping back the lever 64 into the position shown in solid lines.

To achieve this sudden reverse rotation of the lever 64 is the opposite of the roller 65 Pull rod 82 attached to the end of the lever in any manner with a spring, pneumatic bolt or other Pulling device connected. The position of the lever 64 shown in dotted lines is also indicated the point 81, where the rear edge of the sheet leaves the roller 65 and the Lever 64 through the action of a spring

or the like. Standing pull rod 82 is rotated back. By turning back lever 64 the slide 84 is also moved back to the right in FIG. 6, and the compressed air occurs through the tubes 88, 68 to the left side of the piston 76 in Fig. 5. It thus becomes the piston and thereby the roller 63 is moved back as soon as the sheet metal leaves the roller 65. For regulation of the piston movements, not only throttle screws 74, 75 are provided in the cylinder cover 73, instead, a check valve 80 is also installed.

In order to provide good guidance for the roller 63, the piston rod 77 is provided with a Crosshead 78 connected, which slides on a square rod 79.

Through the throttle screws 74, 75 in common with the valve 80, the air passage regulated in such a way that despite the sudden change of direction, the KoI -ben hits 76 is prevented. The incoming air would have a completely free passage through the Pipes 88, 68 are granted into the cylinder, so would by the sudden change in pressure behind the piston 76 the speed of the same so great that he with full Force against the opposite cylinder 'bottom would have to hit. Another episode this would result in the piston 76 being destroyed soon.

.. In the opposite direction the air is throttled even more insofar as the Exit can only take place at the throttle screw 74 because the valve 80 during the retreat is completely closed by its spring. This is a very quiet application of the roller 63 to the edge of the sheet is guaranteed, so that strong shocks, which will damage the machine itself and produce an inaccurate edge of the Sheet metal are completely excluded.

In the following, the process when working with the machine is discussed in more detail.

There are z. B. trapezoidal sheets, which at the pointed end 8 cm and at the broad At the end of 20 and more centimeters wide, inserted into the first pair of rollers. That through the machine going sheet brings the lever 64 one after the other in the dash-dotted line Position and automatically controls the inlets 85, 86 of the air so that the pistons 76 the roles 63 press against the plate 59 and guide it safely.

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Machine for bending trapezoidal sheets of any length with several groups of profiled folding rollers arranged one behind the other, characterized in that that the sheet (59) entering the machine turns over the control lever (64) one after the other with its front edge, by regulating the supply of compressed air to cylinders (62) whose pistons (76) are pressed against them force of guide rollers (63) against the not to be machined longitudinal edge of the sheet metal, the bending tools serve as a counter bearing, whereas the sheet metal leaving the machine on his Trailing edge releases the control levers one by one, under the action of a spring or a pressure medium to go back to its initial position, thereby the compressed air supply change direction to the Zjdinders and take over the leadership roles move back.

In addition 3 sheets of drawings