Folding Machine
Folding Performance
Although folding machines are very different in speed, flexibility and thickness, but they all fold in the same way: the stop system and support system positioned the sheet of steel or other metallic materials the upper beam clamps the plate against the lower beam the bending cheek folds the sheet metal to a desired angle.
The bending jaw can be moved via hand or motor power. To clamp the sheets with the upper cheek are serving spindle, eccentric or hydraulic cylinders. The tools of the upper beam, the bending beam and the lower beam can be replaced to adapt the machine to different lengths and flexure bending part geometries.
Folding is ideal for bending flat sheets that are to be converted in the border area. During bending the flat sheet remains lying on the support system inside of the machine. The operator must not hold the weight of the sheet outside of the machine, neither he must not guide the sheet meanwhile folding and after folding he must even not support the sheet plate weight. Thus a single operator can even handle large and heavy sheets alone.
Large parts of loads, unloads and folds the operator of the rear side of the machine and uses a unilaterally extended backgauge. On small pieces he can also work from the front side. The principle of the bending pivot is also used in fully automatic bending centers.
Sheet thickness, folding radius
Modern folding machines are setting up themselves after program start with the producible sheet thickness and the desired folding angle. With thin sheet plate machines ( up to approx. 2mm) will be mostly adjusted the height of the folding cheek to the pivot point, which sets the machine to the plate thickness. Above 2mm is the adjustment of the folding cheek and the lower cheek ( movement of radius center point) is essential to achieve accurate folding results and to avaoid chracking or breakage.
Advantages of the folding
- very short leg can be bent
- by stringing together short segments can be bent any radius (Step bending)
- open and closed to size envelopes can be bent
- plates can be bent accurately, because the sheet is clamped in bending
- sheets can be bent with a sensitive surface, as there is little relative movement between tool and sheet surface (stainless steel, coated steel sheet)minimum tool wear, due to the low relative movement for different bending angles, radial, thickness and leg length is usually only a single universal set of tools needed
- needed no additional angular displacement measuring instruments
Source:
Wikimedia Foundation Inc.
Wikipedia / Titel: Schwenkbiegemaschine/ URL: http://de.wikipedia.org/wiki/Schwenkbiegen (14. März 2013)
Bild: http://commons.wikimedia.org/wiki/File:Swing-folding-ani.gif
Content has been translated from german to english. No warranty granted for correctness!
The content and technical details are without warranty. (Source see source index)