Operation Box Panel; Operating Procedure Of The Maintenance Screen; [Ca] Setting Of Starting Angle Of The 1St Hook Thread Trimming Cylinder Drive; [Cb] Setting Of Ending Angle Of The 1St Hook Thread Trimming Cylinder Drive - JUKI MOL-254 Engineer's Manual

5. OPERATION BOX PANEL

[1] Operating procedure of the maintenance screen

Turn ON the upper DIP SW No. 2 located on the right side of the operation box panel, and pressing the
standard screen key, press ten key "1" to enter the adjustment screen.

(1) [CA] Setting of starting angle of the 1st hook thread trimming cylinder drive

(2) [CB] Setting of ending angle of the 1st hook thread trimming cylinder drive

(3) [CC] Setting of starting angle of the 2nd hook thread trimming solenoid drive

(4) [CD] Setting of the speed of the loop clamp feed unit

(5) [CE] Setting of the machine head X-Y drive timing

Starting angle of the 1st hook thread trimming cylinder drive can be set.
The angle at which the rod of thread trimming lever enters the cam is specified.
Ending angle of the 1st hook thread trimming cylinder drive can be set.
Angle at which thread is actually trimmed is specified.
Starting angle of the 2nd hook thread trimming solenoid drive can be set.
The angle at which the rod of thread trimming lever enters the cam is specified.
Maximum speed of the longitudinal movement of the loop clamp feed unit can be set.
Standard setting : 2,000 Unit : PPS
Standard speed of the loop clamp feed unit is determined at the necessary speed for
actually performing sewing work.
If the speed is set at more than 2,000, the speed of the loop clamp feed unit is increased
and the cycle time of the machine is increased. However, it is necessary to actually
limit the handling time within 0.5s and not substantial to increase the speed more
than 2,000.
Further, speed is inverse proportion to driving torque. If the speed is increased, the
torque is decreased, and drawing force of belt loop is decreased.
Timing of the movement of needle and movement of machine head X-Y can be
selected.
Standard is 50˚, and 30˚ and 70˚ can be selected.
The angle to be set means the ending angle of the X-Y movement. The setting is
changed depending on the problem whether needle pierces or needle comes off
since the time of X-Y movement is the same.
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