Ejector control, 1ć13 – Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE User Manual
Page 25
Overview of Inject, Clamp, and Eject Mode
Chapter 1
1-13
Figure 1.15
Example Open Slow
Open Slow
Clamp
Cylinder
Moving
Platen
L
0
Y
Velocity
Position
2
1
Stationary
Platen
Segments
Important: If you need only one open slow motion, configure only the 1st
segment of the open slow profile.
In this section, we describe the eject operation for expelling molded parts.
The operation consists of:
ejector
advance
ejector
retract
Figure 1.16
Clamp and Eject Portion of a Typical Machine Cycle
Inject
Open Slow
Low Pressure
Close
Clamp Close
Clamp Open
Ejector advance
Ejector retract
Ejector Advance
The QDC module starts advancing the ejector after detecting either one of
these events that you configure/program:
clamp position reaching a pre-determined setpoint
command from your PLC program
You may advance the ejector while the clamp is still opening the mold, or
wait until the mold is fully open.
Ejector Control
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