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Automatic 2-needle Belt-Loop Attaching Machine
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PDF CATALOG
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Shortened machine
time and consistent loop feeding help
increase productivity. |
| MOL-254
(equipped with full options) |
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Features
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Machine
time 1.2 sec. / belt-loop. |
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machine time is 1.2 seconds per belt-loop
(with 28 stitches). |
| The new machine head
specifically developed for belt-loop
attaching machines runs at a maximum
sewing speed of 2,500rpm and is equipped
with a direct-drive system that improves
start up performance and shortens sewing
time. The belt-loop feeding device is
now provided with a halfway standby
capability for subsequent belt-loops,
and its faster belt-loop supply action
shortens the time required for supplying
belt-loops and helps speed up the machine
time to 1.2 seconds per belt-loop (with
28 stitches). |
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| With
the improved consistency in belt-loop supply
action and re-try capability, the machine
down time is substantially reduced. |
| Belt-loops are fed out
by the conventional gear-roller feeding
mechanism and also drawn out by the
new drawing mechanism on the clamp device.
Supported by these two mechanisms, the
folding fork catches “curled”
or “creased” belt-loops every
time and supplies them to the head.
In addition, the sensor of the clamp
device detects the presence/absence
of belt-loops. If it detects a faulty
belt-loop feed, the clamp device automatically
repeats the clamping action. Since the
operator doesn't have to operate the
set-back switch, less time is lost. |
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| When feeding out belt-loops |
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| When the finger catches
belt-loops |
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machine quickly and reliably disposes splices
without any delays in cycle time. |
The machine
preliminarily detects each splice in
the belt-loops and efficiently disposes
them. This means that even when the
machine carries out the splice-disposal
procedure, the belt-loop feeding device
can complete its belt-loop supply action
and supply the next belt-loop well before
the machine starts to sew. As a result,
the operator can perform rhythmical
and efficient sewing work with no delay
in cycle time. By detecting changes
in the material thickness, the machine's
potentiometer finds splice in belt-loops
and disposes them perfectly.
When changing the material to be sewn,
the change in the material thickness
recognized by the potentiometer as a
splice can be easily adjusted and programmed
through the machines's teaching function. |
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| The standard
machine incorporates a 1.8-fold capacity
shuttle hook. The shuttle hook improves
efficiency by reducing the frequency
of bobbin thread replacement. |
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The
machine offers improved flexibility. |
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newly developed machine head comes with
a computer-controlled X-Y linear feeding
system which enables to program the
number of stitches and size of bartacking. |
| The number of stitches
to sew a belt-loop can be switched between;
28-, 36- and 42-stitches, and the bartacking
size can be easily changed through the
operating panel. What's more, the user
can create his/her own original sewing
patterns in addition to the standard
ones using JUKI's PGM-20 programming
software developed for computer-controlled
sewing machines. |
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| Simple
adjustment of the machine enables changeover
of the cutting method between cross
cutting and straight cutting. |
| The applicable loop width
for the cross-cutting device is increased.
In this model, both the cross-cutting
device and the straight-cutting device
can now cut loop up to 20mm width. |
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The
machine offers improved operability, workability,
and maintainability. |
| An
electric sliding mechanism is installed in
the front hook (near the operator). |
| The newly incorporated
electric sliding mechanism is used to
electrically shift the front hook when
replacing the bobbin or conducting maintenance
on nearby components in order to widen
the space between the hooks and facilitate
the job. In addition, when changing
the needle gauge, the front hook can
be finely positioned in increments of
0.01mm through the operating panel,
thereby allowing the operator to easily
adjust the distance between the blade
points of the two shuttle hooks. Since
the machine no longer requires any adjustment
in the hook timing (phase), needle gauge
adjustment is much simpler than ever
before. |
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| With a minimal distance between hooks |
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| With a maximized distance
between hooks |
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| To
enable computer-controlled belt-loop supply
performance, the machine has adopted a servomotor-driven
belt-loop feeding device that feeds the belt-loops
to the sewing position (i.e.,under the presser
foot). |
| The belt-loop feeding
position is automatically adjusted to
the belt-loop width. With this capability,
the belt-loop width can be easily changed
without mechanical adjustment. In addition,
when feeding the belt-loop under the
presser foot, the widthwise position
of the belt-loop can be offset through
simple manipulation of the operating
panel. |
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| The widthwise position
of the belt-loop can be offset. |
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| The lift of the presser
foot is as high as 21mm to ensure outstanding
workability. |
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| To
improve workability in replacing belt-loops,
the belt-loops insertion opening through
which belt-loops are supplied to the
feeding device is now located on the
front side of the main unit. |
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The operator
can visually check how the belt-loops
are fed during sewing and prevent possible
troubles in the belt-loop feed due to
faulty loop-feeding paths. |
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| The
machine is equipped as standard with
an adjustable stand. |
The height
of the working table can be easily adjusted
to match the operator's height.
The operator can carry out sewing works
in a comfortable posture with less physical
strain and fatigue. |
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Specifications
| MODEL NAME |
MOL-254 |
| Machine head |
Computer-controlled,
2-needle, lockstitch bartacking machine |
| Max. sewing speed |
2,500rpm |
| Thread take up |
Link type |
| Needle bar stroke |
45.7mm |
| Thread |
Spun thread,
cotton thread #50~#30, B33~B46, Nm=120/3~60/3 |
| Needle (at the time of
delivery) |
DP x 17
(#21) #19~#21 |
| Hook |
Horizontal-axis
1.8 fold-capacity shuttle hook |
| Lift of the presser foot |
21mm |
| Number of stitches |
28, 36,
42 (selectable on the operating panel) |
| Needle gauge |
40~70mm
(1-37/64"~2-3/4") |
| Bartacking length |
7~22mm
(9/32"~55/64")<adjustable in increments of
0.1mm> |
| Bartacking width |
1~3.2mm
(3/64"~1/8")<adjustable in increments of
0.1mm> |
| Number of pieces of bartacking
datathat can be stored in memory |
9 (99
patterns if optional ROM is added) |
| Belt-loop width |
9~20mm
(23/64"~25/32") |
| Finished length of belt-loop |
48~78mm
(1-57/64"~3-5/64") |
| Machine time |
1.2 sec./belt-loop
(28 stitch) |
| Positioning of the front
hook |
Driven
by motor (the distance between the hook can be established
in increments of 0.01mm) |
| Bobbin winder |
Electric
type (provided as standard) |
| Lubrication |
Centralized
oil wick lubrication (machine head) |
| Lubricating oil |
JUKI New
Defrix Oil No.2 (equivalent to ISO VG32) |
| Power requirement and
power consumption |
Single-/3-phase,
350VA |
| Compressed air and air
consumption |
0.5MPa
(5kgf/cm2), 32NR/min |
| Total weight |
230kg |
| Dimensions |
1,200mm
(W) x 800mm (D) x 1,350mm (H: in its lowest end) |
| Height of the top surface
of the throatplate as from the floor surface |
920~1,250mm
(provided with the adjustable stand capability) |
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