Adjustment Of The Thread Trimming Mechanism; Adjustment Of The Knife Engagement - Mitsubishi Electric PLK-G3040R Technical Manual

8-5. Adjustment of the thread trimming mechanism

This thread trimming mechanism employs the air driven knife operation, which consists of the knife
section which is assembled on the slide plate (center) and the knife section which is assembled on the
bed and driven by cylinder.

8-5-1. Adjustment of the knife engagement

(1) Remove the slide plate (center).
(2) Loosen flat head screw and turn the eccentric
pin to adjust the engagement pressure of
knife so that the thread can be clipped lightly.
Look it there with the flat head screw.
[Notice]
If the movable knife is mounted in reverse,
it causes the motion error due to thread
clogging. When the knife is replaced,
confirm it is mounted as shown by the
figure.
(3) Remove the blind cover from slide plate
(center) and pull the movable knife to align its
slot with the sight hole. Engage the slot of the
movable knife with the knife drive lever pin
section of bed and install the slide plate on
the bed.
Movable knife slot
Eccentric pin
Flat head screw
Slide plate (center)
Blind hole
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Slide plate (center)
Fixed knife
Movable knife
Knife holder
Knife drive lever
pin section
Sight hole