[I] Feed mechanism
(8714/8716/8747)
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I. When the pulley 0 turns in the direction indicated by the arrow, vertical movement
is
transmitted by the feed
cam
8 mounted
to
the
upper
shaft 8
to
the forked connector 8 via the feed cam sleeve
G.
2.
The
horizontal feed rocker
arm
8 connected
to
the forked connector 8
is
then moved in a circular arc.
3. The feed
bar
8
is
moved back and forth by the horizontal feed
bar
shaft 0 mounted
to
the horizontal feed
rocker shaft
8.
4.
The
crank rod fi)
is
moved up and
down
by
the feed cam
8.
5.
The horizontal feed shaft & connected
to
the
crank
rod
~
is
then moved
in
i circular arc.
6.
The
horizontal feed
arm
Cl
connected
to
the feed shaft &
is
also moved in a circular arc.
7.
The movement
of
the feed dog mounted
to
the feed
bar
8
is
determined by the combined action
of
steps 3 and 6.
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