Are skipped stitches causing y'all downward time in your industrial sewing awarding? Here are some tips to help detect and right the common causes of skipped stitches.
- Check and make sure that machine is threaded correctly
- Make sure motorcar is oiled properly and full general maintenance has been washed
- Change the needle and make sure information technology is pushed all the manner into the needle bar with the kerf/eye parallel to the hand wheel or slightly pointed towards incoming shuttle hook
- Bank check timing of needle in relation to hook. Make sure the needle is ascent back up when checking the timing. When the tip of the hook is abreast the needle, the eye of the needle should be ~ i/16" below the hook. The tip of the hook should too be very close to the needle, about the thickness of printer newspaper from the needle:
- Make sure the tip of the hook is not damaged or sharpened more than a few times. Sharpening moves the timing, and eventually to the point of non being able to keep the car sewing reliably.
- Make certain the throat plate/needle plate does not take an excessively large hole(movie on the right). The hole should be slightly larger than the needle and thread together.
- Check the throat plate for warpage (moving-picture show on the left)
- Make sure the inner presser foot is holding the fabric sufficiently tight when needle is on its downwardly stroke
- Brand certain the inner presser foot is not being rubbed by the needle
- Check the tension from the thread take-up spring. The spring should pull the thread dorsum hands and speedily later on pulling through the machine and releasing from one'south hand.
- Check thread tension on both top and bottom thread. Thread coming from the bobbin should be easy to pull from the example through the throat plate. Thread coming from the spool should be easy to pull from the operator's side of the accept-up lever. Excess tension can cause improper loop germination.
- If skipping in i direction, cheque that the throat plate is not installed 180° off. Try sewing with the throat plate turned 180°. If skipping in that management persists, the problem is elsewhere. If skipping changes direction, change the pharynx plate or if skipping is happening on the shorter side of the throat plate, lengthen the slot on that side. Beneath is a moving picture of a brand new pharynx plate:
- Ensure that the feed dogs are non trying to move material merely equally the needle clears. If feed dogs elevator and moves material too early on, the thread volition catch in the race or will not sure-fire tightly. If it stays in the race, it could cause a skipped stitch on the adjacent stitch or cut threat.
- Check that the needle bar is not aptitude. This requires taking the needle bar out of the auto. Find a very flat surface and lay the bar on information technology. Place hand on bar at nigh one tertiary of the bar'due south length. Roll the bar forwards and back while watching the longer side for any wobble. Echo for other side.
If trouble persists and none of the points to a higher place resolve the upshot, contact Service Thread for a consultation.
Related Manufactures:
- Sewing machines for industrial applications
- How to choose the right needle size for industrial sewing
- Bonded versus soft industrial sewing threads
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