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Rotary knife applications involve 2 axes of servo to continually or intermittently perform a cut, labeling procedure, or stamping process where the servo axis 1 aligns itself to move at the same speed as a feed axis 2 that drives a material to be cut/stamped/labeled. The servo axis 1 (or slave axis) moves according to the feedback of the axis 2 driving the belt (master axis) so that it can coordinate its movement with speed changes.
Which automation components are important
The LD77MS provides a simple solution rotary knife application. With high speed registration capability, Auto-Cam-generation, and electronic pulse compensation functionality during non-cut regions, the LD77MS can accurately respond to input pulses from an external encoder or a servo master axis.
In a typical rotary knife application, the servo motor continually moves. If the distance between cuts is small (smaller than the circumference of the cutter), the motor speed during the non-cut compensation region is faster than the conveyor speed and vice versa. In this type of application, the cut length, label or stamp location may change and it is possible that the feed material may slip, stretch, or bind up, causing the operation’s accuracy to change. The addition of a mark sensor before the servo axis can help to compensate for these fluctuations.
Sincerely Packaging and Labelling
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Sincerely Packaging Labelling