1. First check whether the needle is installed correctly. It is best to replace it with a new needle.
2. If it still doesn’t work, then open the needle plate, turn the needle to the lowest position, and check that the tip of the hook is about 8mm away from the needle.
3. If so, then raise the needle by about 2.3mm, and then check whether the tip of the hook coincides with the center of the needle. At this time, the needle and the tip of the hook should not be too close together, and there should be a gap of 0.1.
4. The overcoat machine can adjust the stitches for ordinary materials without skipping, and for extra-thick materials with short stitches. Try lowering the needle bar slightly. Drop 1-1.5MM, and the crochet hook should be appropriate. If the jumper is hooked too early, it will break if it is too late. It is best to place it 1.5MM above the needle hole. Pay attention to the amount of thread pick-up above. For thick materials, reduce the amount of jumper appropriately.
Extended information:
1. Carefully check the chain crochet positioning.
2. Is the position of the chain thread take-up lever accurate, so that the chain thread crochet hook cannot take up the thread, and thread identification cannot occur
3. The return amount or height of the chain thread crochet hook is not correct. correct.
4. Re-adjust the chain thread crochet hook and chain thread take-up lever according to the standard to a reasonable position so that the braid stitch can be produced when the sewing material is interrupted or when the machine is empty.
5. If the stitches start to skip and the needles appear in the middle, the normal analysis is that the sutures are threaded incorrectly or the tension is not adjusted properly, the crochet thread cam movement time is not coordinated properly, and the needle and the upper and lower The coordination of the looper and chain crochet hook is unreasonable.