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DIFFERENTIAL
FEED
The
differential
feed
has
two
independent
sets
of
feed
teeth
one
front
(A)
and
one rear
(B).
Set
of
feed
teeth
has
an
ndividual
feed
mechanism
wh
cri
enables
the
feeding
of
material
ate
different
ratio.
POSITIVE DIFFERENTIAL
FEED
WHEN
SET
FOR POSITIVE
DIFFERENTIAL
FEED,
the
front
feed
teeth
(A)
wakes
a longer
stroke
then
the
rear
feed teeth
(B).
This
has
fhe
effect
of
gathering mater
al
under the
presser
foot
to
offset the
wavering
on
the
fabric.
NEGATIVE
DIFFERENTIAL
FEED
WHEN
SET
FOR NEGATIVE
DIFFERENTIAL
FEED,
the
front
feed teeth
(A)
makes
a
shorter
stroke
than
the
rear
feed
teeth
(B).
This
has
the
effect
of
stretch
ng
material
under
the
presser
toot
to
ofteet the
pucivesng on
the
fabric.
Illustration
I
:
Differential
teed
dogs
S
Positive differential
teed
*
th
Negabve
d
fferentisl
feed
TRANSPORTE
DIFERENCIAL
El
transporte
diferencial
tiene
2
transportadores
de
avance
independierrtes,
frontal
(A)
y
posterior
(B)
Cuba
transportador
tierie
us
mecanismo
de
avance
individual
qua
facilits
01
transporte
del
materials
long
tubes
be
puntada
diferentes.
TRANSPORTE
DIFERENCIAL POSITIVO
CUANDD
EL
TRANSPORTADOR
SE
FIJA
PAPA
AVANCE
DIFERENCIAL
POSITIVD,
el
rransporte
fronta
(A),
realize
usa
csrrers
mayor
qua
e
posterior
(B).
Esto
tene
el
efecto
do
vcumular
material
balo
el
pie
prensatelas
pars conseguir
frunc
u
osdular
0
matensl.
TRANSPORTE
DIFERENCIAL
NEGATIVO
CUANDO
EL
TRANSPORTADOR
SE
FtJA
PAPA
AVANCE
DIFERENCIAL
NEGATIVO,
el
transportador
frontal
(A)
realize
una
carrera
was
coos
quo
01
posterior
(B(.
Esto
tiene
01
ofocto
do
estirar
el
material
ba)o
01
i0
prensarelas
pars
compensar
01
srrugaoo
del
material.
I
ustraciOn
*
I
Transportador
do
avance
diterencial.
II
Transpose
diferencial
positivo.
*
lIt:
Transpose
diferencial
negativo.
*flJ
*fl
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