Application Of An Electronic Cam-Using A Rotary Cutter - Delta AH Series Operation Manual

AH M o ti on Co n tro l ler – Op era tion Ma nua l
7.9.4 Application of an Electronic Cam—Using a Rotary Cutter
In the application of cutting materials on a feeding belt, a traditional approach is that a cutting roller will rotate after a
feeding roller rotates for a certain length, and the alternation of feeding materials and cutting the materials is repeated.
The disadvantage of this approach is that the acceleration/deceleration needed in order for a feeding roller to rotate/stop
decreases production efficiency. As a result, a new approach is that materials are fed continuously. There are two ways of
cutting materials on a feeding belt: rotary cut and flying shear. Flying shear is reciprocating motion, while rotary cut is
unidirectional motion. The cam curve for rotary cut is different from the cam curve for flying shear. The application of rotary
cut is described below.
【Concept】
1. In the application of rotary cut, the cutting roller of a rotary cutter rotates in a direction. A material is cut when the
blade of the rotary cutter comes into contact with the material. The feeding roller of the rotary cutter continuously
feeds materials at a uniform speed. The relation between rotary cut and the output generated is shown below.

At first, the slave axis accelerates until it moves to the synchronization zone.

After the slave axis leaves the synchronization zone, it decelerates until it returns home. A cycle is complete
when the slave axis is at home. You can draw a speed relation chart.
_7
7 - 4 0
S e rvo
4 4
1 1
3 3
Lengt h of the c utt in g
2 2
AH M otio n CP U
Output of the
encoder
S e rvo
CAM
X ax is
Jog
Y ax is