− 121 −
Fig. A
[Setting of center knife actuating position at the end of sewing]
In case of normal setting (corner knife does not perform indexing), screen C is displayed.
When the corner knife performs indexing the same as the center knife actuating position at the start of sew-
ing setting, screen D instead of screen C is displayed. As shown in screen D,
Index excess cut length
on the fixing side (initial value 4.0 mm) is automatically added.
E
F
D
Center knife actuating
position setting screen
(Screen C)
Center knife actuating
position setting screen
(Screen D)
D
Center knife actuating position at the end of sewing is displayed. (E + F)
E
Center knife actuating position at the end of sewing before compensation is displayed.
F
Index excess cut length on the fixing side (initial value 4.0 mm) is displayed.
Two kinds of corner knives, long and short, are provided to comply with the slant sewing
(For the details, refer to the function of corner knife.)
For APW-896N, center knife cuts at the setting position where the index excess cut length on the
traveling side (initial value 4.0 mm) is automatically added to the center knife actuating position at
the start of sewing setting. (Fig. A)
Actuating position of the center knife changes in accordance with long and short corner knives as
follows. When changing over from the combination of each short corner knife to the combination of
long corner knife and short one, the cutting position of center knife slips if the center knife stays at
the same position. (Fig. B)
Therefore, it is necessary to change the cutting position of center knife.
Short
Short
Long
Short
Setting of center knife actuating position at the
start of sewing
Index excess cut length on the moving side (initial
value 4.0 mm) that is automatically added when the
corner knife performs indexing.
Fig. B
Corner knife
deflection 0.1mm to
4.0mm
Corner knife
deflection 4.1mm to
8.0mm
Corner knife
deflection 0.1mm to
4.0mm
Corner knife
deflection 4.1mm to
8.0mm
Center knife cuts excessively.
Short
Short
Long
Short