Have you ever come
across the situation that the embroiderer suddenly interrupted and didn’t work?
Are you at a loss what to do when facing this problem? Today we will talk about
this topic and try to help you to solve problems. The most common causes of a coiling
embroidery machine interruption include: 1) Needle Thread Breakage or
Pull-out – not picking up at the beginning of a stitch pattern; 2) Bobbin
Thread Run-out or Thread Pick-Up – not picking up at the beginning of a stitch
pattern; 3) Improper Thread Trimming; 4) Thread break detector stoppage
In order to
minimize sewing interruptions during the stitching of complex embroidery
patterns, you can deal with it form the aspect of the machine itself. The
causes will be stated as follow:
1. Lack of
preventive maintenance. This will be performed in the
following two aspects: excessive
lint and dirt in the machine and machine needing to be lubricated.
2. Worn machine
parts. For example, normal wear and tear of sewing machine, burr on hook, bobbin
plate is scratched and the needle hole in needle plate enlarged causing
excessive flagging.
3. Machine thread
tensions not set correctly. On one hand, it is because tension too tight for
the thread and application, on the other hand, tension too loose not allowing
the machine too pull the stitch up properly causing a “birds-nest” of excessive
thread.
4. Machine out of
adjustment -- needle bar height; hook settings – timing and position to needle;
foot or counter-presser not set correctly; take-up spring not set correctly.
5. Thread trimmer.
To be specific, trimmer not cutting cleanly; tension release not working properly
causing the thread to pull back out of the needle when the thread is trimmed;
and thread caught in trimmers.
To solve the
problem, you could read the following tips:
1. Develop a good
preventive maintenance program
1) Blow-off the machines everyday.
2) Make sure the machines are properly
lubricated on a regular basis.
3) Pull machines out of production to
inspect the machines on a regular basis.
2. Make sure the
Embroidery Machines are adjusted properly
1) Correct needle bar height
2) Proper hook settings – Timing and
position to needle
3) Make sure the needle centers in the
counter-presser (foot) and it is adjusted the correct height to minimize
flagging.
4) Set the Take-up Spring so that it is
working properly
3. Make sure the
Thread trimmer is operating properly
1) The trimming knifes and sharp and trim the
needle and bobbin thread cleanly.
2) The tension release mechanism is working
properly so a needle thread tail is left allowing it to be picked up at the
beginning of the next stitching cycle.
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