Application: Printing
Flying shear is typically used to cut a specific length from media moving through a high speed continuous and feed system. The procedure is often implemented in textile, printing, medical and food packaging applications. Flying shear can effectively cut material on the fly without stopping, vastly improving throughput over conventional means in which material must be immobilized for cutting.
In principle, the flying shear comprises a carriage supporting the cutting tool (shear) which must be accelerated to match the speed of the media, typically on a conveyor, before the cut occurs. Solutions to this type of application can include electronic cam or other precision functions to synchronize the shear action with the motion of the conveyor in the required location. When the cut is complete, the shear rapidly decelerates and reverts to the starting position to initiate the subsequent cutting cycle.
ADLINK Solution: PCI-8254/8258: DSP-based 4/8-axis Advanced Motion Controllers
To ensure the precision of each workpiece during flying shear operation, ADLINK's PCI-8254/8258 offers multi-axis synchronization and program download functions to provide real-time cycle control levels within 1 mS. As well, the PCI-8254/8258 supports high performance PID closed-loop control to instantaneously compensate any errors by both carriage and conveyor. Program downloads feature exact real-time control grade and conserve host CPU resources, while simultaneously providing not only programming capability, but also motion and I/O control and Boolean function.
