The Multifold is provided with two folding beams, one for positive bendings and one for negative bendings up to a maximum of +/- 135º. Through a mechanism the upper and lower beam are positioned (patent announced), as a result of which Z-bendings will be made without turning the plate. Both beams will be driven high-dynamicly by AC-servomotors. The holddown is CNC positioned through hydraulic cylinders, as a result of which it is also possible to flatten a 135° converted side in the shape of a folded seam. With this, there can also be given a free programmable space.
The holddown is standard executed with a quick change device for the bending fingers. Optional it is possible to execute this clamping hydraulic. If the clamping is opened, the tools can be (dis)mounted or moved vertically. When you fill up the bending fingers lateral, you can adjust the total width of the holddown. This also applies for the folding list.
Retractable folding list
Optional, it is possible to retract parts of the foldinglist automaticly, so that back laying bendings or welding lips can be
bend.
Manipulator (positioning system)
The sheet will be lead into the infeed table automatically or manually. Through a positioning system, the sheet will be
positioned exactly and will be taken over by the sheet clamp. The positioning system consists of two length gauges (Z-axis) and a width gauge. The two length gauges will be automatically adjusted on the desired product dimension.
After positioning by the pneumatic controlled width gauge, the gauges sink under the level of the in feed table.
Manipulator (lift function)
The sheet clamp can be lifted vertical with a stroke length of 35 mm, so that sheets with a last negative setting can be executed. This lift function can also be used to lift the product over the bottom tool if for example press through or louvres are mounted in the product.
Sheet clamp
The machine is executed with a sheet clamp that clamps the product in the middle. The turntable is integrated in the sheet clamp, which rotates the product, so that all sides of a product can be bend in one cycle. High dynamic
AC-Servomotors take care of the drive of the turntable and the positioning of the clamp.