Mitsubishi Electric PLK-J2516R-YU, Technical Manual

Page: 56 / 72

- 49 -
7-5-2.5 Adjustment of the mounting position of the air cylinder
(1) Attach the thread trimmer air cylinder (No.1) by fixing with the bolt (No.2). When the thread trimmer air
cylinder (No.1) is released, there will be a clearance of approx. 1mm at section A . To adjust this
clearance, loosen the set screw (No.4) for the mounting plate (No.3), and move the entire mounting
plate (No.3).
After adjusting, securely tighten the set screw (No.4) for the mounting plate (No.3).
(2) When the thread trimmer air cylinder (No.1) is activated, there will be a clearance of 0.5mm between
the cam follower crank 1 (No.5) and cam follower crank 2 (No.6). This is the standard state. This
clearance can be adjusted by loosening nut (No.7) for the air cylinder (No.1), and rotating the shaft
section (No.8) of the air cylinder (No.1). After adjusting, securely tighten the nut (No.7) for the air
cylinder (No.1).
7-5-2.6 Adjustment of the mounting position of the thread trimmer cam
Before the trimmer mechanism is activated, the cam follower crank 2 (No.1) is located under the
condition that a point of tangency of the cam follower (No.4) is over the tangential line of the knife driving
shaft (No.2) and the lower shaft (No.3) at 1.5mm distance. This is the standard condition. Make the
following adjustments based upon this standard condition. If this standard condition is changed by such
removing the stopper (No.5), set the cam follower crank 2 (No.1) back to the standard condition with the
adjusting bolt (No.6).
<1>: Air cylinder
<2>: Bolt
<3>: mounting plate
<4>: Set screw
<5>: Cam follower crank 1
<6>: Cam follower crank 2
<7>: Nut
<8>: Shaft
<1>: Cam follower crank 2 <2>: Knife driving shaft <3>: Lower shaft <4>: Cam follower
<5>: Stopper <6>: Adjusting bolt
A
A
<6>
Section A-A
<1>
<2>
<3>
<4>
1.5mm
Top of the machine bed
<5>
<4>
<2>
<1>
<3>
<1>
<2>
<3>
<4>
<5>
<6>
<8>
<7>
0.5mm
A