Send Quote Requests to info@automatedpt.com
Motion Control
Call +1(800)985-6929 To Order or Order Online At Deltaacdrives.com
ASDA-A3
7
7.3.7 Rotary Shear
The rotary shear system is a system that combines the material feeder and cutter; the cutter
cuts simultaneously when materials are fed as shown in Figure 7.3.7.1. Similar systems are
widely used in different applications, such as cutting machines, printing machines, and packing
machines. In this example, the material feeder is the master axis in the E-Cam system. When
the master axis operates, it simultaneously sends pulse commands to the slave axis (cutter).
Figure 7.3.7.1 Rotary shear system - cutting machine
Apart from the requirement for calculating the correct cutting length, the operation speeds of
both the material feeder and cutter have to be the same during cutting. This stage in the E-Cam
curve is called the synchronous speed zone. During cutting, if the material feeder runs too fast,
the material might be crushed or piled in front of the cutters, as shown in Figure 7.3.7.2 (1).
If the feeder runs too slow, the cutter might over-stretch the material, causing the distortion of
the material as shown in Figure 7.3.7.2 (2).
(1) Material feeder runs too fast; (2) Material feeder runs too slow
Figure 7.3.7.2 Inconsistent speed in synchronous speed zone for cutting machine operation
7-104
Send Quote Requests to info@automatedpt.com
Call +1(800)985-6929 To Order or Order Online At Deltaacdrives.com