Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 13)

Chapter
1
1-1
Overview of Inject, Clamp, and Eject Mode
This chapter presents an overview of the 1771-QDC Plastic Molding
Module in the inject, clamp, and eject mode. We present a summary of
operating features followed by sample applications.
Important: This chapter assumes you have already read your Plastic
Molding Module Application Guide (publication 1771-4.10) and have
chosen inject, clamp, and eject as your QDC module’s mode of operation.
Next we describe the control operations of this mode.
You can control the inject operation with these phases:
injection
transition
pack
hold
pre-decompression
plastication
post-decompression
Figure 1.1
Inject Operation of a Typical Machine Cycle
Injection Pack Hold
Post- Pre-
Decompression Decompression
Plastication
(Reload)
Transition to
Pack or Hold
Clamp
& Eject
Operation
Chapter Objectives
Inject Control