[2] Outline of Let-off Control
(1) Plain weave “a”
The beam rotates according to the density data
forwarded from the loom’s main controller M. In
addition, difference between the set and actual
tensions is used for regulating the beam rotation.
(2) Pile weave “b” The beam rotates according to the
density data (including the pile length) forwarded
from the loom’s main controller M. In addition,
difference between the set and actual tensions is
used for regulating the beam rotation.
(3) Shift from the plain to pile weave “C”
The beam rotates to deliver yarns to attain a piling
tension when the woven texture is switched.
(4) Stop pile weaving “d” Immediately upon the loom
stopping, the beam rotates to deliver yarns for easing
tension to a level appropriate for non-pile weaving
state.
[3] Adjustment of Easing Roller
(1) Set the crank angle to 0
°
in the fast pick.
(2) Lock the emergency stop pushbutton switch
(3) Check that a dimension A is 104 mm (standard set
dimension).
To adjust the dimension A, loosen a bolt 5.
NOTE
: Should uneven pile be generated,
Make the dimension A longer evenly.
If overlengthened, pile yarns may be
entangled during easing.
(4) Make adjustment in fast pick or plain weave state so
that a pipe holder arm 2 will become vertical.
When making individual adjustment, loosen a bolt 3.
When making overall adjustment, loosen a bolt 4.
(5) Check that the easing roller 1 can be turned
smoothly by hand.
If not, it may cause uneven piling.
M5. Pile Let-Off
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