−20 −
(1) The mechanism and the name of each component of the knot-tying
As shown in the figure below, when the machine is running, the stitch adjusting cam rotates and the
thread bind arm roller rides over the thread bind notch attached to the stitch adjusting cam making the
thread bind plate actuate by means of the respective links to hook thread. The slack portion of the
hooked thread will be tightened by the thread wring lever at the time of stop motion.
(2) Positioning the knot-tying arm stopper
4. ADJUSTMENT OF KNOT-TYING MECHANISM (EXCLUSIVE FOR MB-377)
Standard Adjustment
Tip of thread bind plate
Thread to be
hooked
Looer
Thread wring lever
Thread bind plate
Connecting plate (small)
Thread bind lever
Thread bind arm stopper
Connecting plate (large)
Thread bind link
Thread bind arm
Thread bind
notch
Thread bind
arm roller
Stitch adjusting cam
1 to 1.5 mm
1
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