Injection Molding Machine Chapter 5
V3.0
5-5
Item Possible Causes Solution
1.10
No mold thickness adjustment
A Mold is not unloaded from
machine
B Mold adjusting gear locking screw
is not loosened.
C Mold adjusting brake is not
released
D Mold height limit switch OFF
E Poor lubrication on die adjusting
device or tie bar.
F Poor sensing of proximity switch
G Improper setting of preset die
height available.
H Improper setting of pressure and
speed
I Foreign objects are existed
between gear set.
J Supporting bracket and strut for
the gear are loose
K Directional valve stuck
L Directional valve signal wire
failure
A Unload mold first
B Release locking screw
C Check mold adjusting braking device
D Check and repair LS28, LS29
E Add grease for lubrication
F Check distance/circuit of proximity switch
G Correct settings
H Correct settings
I Clear foreign matters
J Tighten up
K Clean V28, V29 manually press spool
L Check and repair signal wires 178/0, 179/0
1.11
Automatic clamping force fails
A Clamp close monitor time too short
B Error in die height available and
actual mold size exceeding 5mm
C Thermal expansion of mold and
improper high pressure mold
locking position.
D mold is dirty
A Increase clamp close monitor time
B Correct parameter
C Increase high pressure mold locking position
D Clean mold