I.
GENERAL DESCRIPTION
JUKI Model LH-512
is
a high speed, 2-needle, needle feed, lockstitch industrial sewing
machine with a sewing speed
of
4,200
s.p.m.
JUKI Model LH-515
is
a high speed, 2-needle, needle feed, lockstitch industrial sewing
machine equipped with reverse feed mechanism, which
is
designed for withstanding
high speed operations
up
to
the
maximum sewing speed
of
3,500
s.p.m. and for aiming
at excellent durability.
1.
REMARKABLE FEATURES
o Link type thread take·up
This
type
of
industrial sewing machine has usually been designed
to
be operated
on
the
principle of a slide
type
thread take-up, although it was
not
sufficient in
sewing speed and durability. By overcomming such technical problems,
JUKI
Model LH-515 has successfully been designed
to
employ
the
link
type
thread
take-up mechanism which has sufficient durability
without
puckering
the
fabrics.
o Feed mechanism
This model employs a push
button
type
lead cam regulating system and also
needle bearings.
For
the
purpose
of
preventing any abrasion
or
seizure during a
high speed operation, a durable and seizure-free material is used
for
the
slide
block
type
feed driving mechanism.
o Lubrication system
The lubricating oil y.rhich
is
fed from
the
oil reservoir by means
of
the
plunger
pump
located on
the
hook
driving shaft
is
distributed
to
the
left and right
hook
driving shaft saddles, pushed
up
to
the
oil sight window
on
the
machine arm and
also
is
delivered
to
the
thread take-up lever shaft.
The
inside mechanism
of
the
face plate
is
constantly
lubricated through
the
oil wicks connected
to
the
thread
take-up lever shaft.
All
other
bearing metals are made
of
special sintered alloy which does
not
need
lubrication.
o Bobbin case opening mechanism
The
bobbin
case opening mechanism
of
the
Model LH-515
is
so designed as
to
achieve one
motion
while
the
sewing
hook
rotates twice, being different from
the
conventional models
of
which
the
mechanism achieves
two
motions. Thus,
the
improvement extends
the
life-time
of
the
sewing
hook
and minimizes
running noise.
o Hook shaft bearings
High speed feature and durability
of
this model
is
assured
by
employing
the
precision needle bearings in
the
upper
bushings
of
hook
shafts
on
the
both
left
and right.
-1-'-
To Next Page
Loading...
Need help?
General
