Injection Molding Machine Chapter 6
V3.0
6-5
3 Cleaning
3.1 Screw removal/installation and cleaning
Procedures for removing the screw for cleaning are:
A) Carriage retract all the way backadjust mold thickness to
maximum injection to end clamp open to maximum
temperature still maintained.
B) Remove screw lock ring from quill
C) Remove the barrel end cap
D) Suck back to pull out the screw from quill
E) Use copper bar or non-metal object to push the part between screw
and coupling (quill) to eject the screw out of the barrel with
injection operation.
F) Draw the screw away from the barrel from between fixed platen
and movable platen.
Procedures for installing the screw back in the barrel after screw is
cleaned are:
A) Install the screw into the barrel from between fixed platen and
moving platen.
B) Use copper bar or non-metal object to push the part between screw
head and movable platen to hit the screw into the barrel with
clamp close operation.
C) Install screw into coupling (quill) and lock up screw pressing
cover.
D) Clean the contact surface between barrel end cap and barrel
apply anti-rusting agent on the bolt and tighten it up
symmetrically and evenly.
E) Install heater band and thermocouple.
Screw locking ring
Barrel head
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