A thick thread zigzag sewing machine is a special sewing machine, also known as a mesin jahit zigzag. Mesin dua-mata dan tiga{1}}mesin biasanya digunakan, yang meningkatkan kadar aktiviti peralatan dengan sangat baik. mesin jahit terdiri daripada kepala mesin, tapak, transmisi, dan aksesori. Kepala adalah bahagian utama mesin zigzag. Model utiliti terdiri daripada empat mekanisme cucuk, cangkuk benang, pengambilan-benang dan penyusuan, serta mekanisme tambahan seperti penggulungan wayar, penekan bahan dan pengguguran gigi. Pergerakan setiap mekanisme diselaraskan dengan munasabah dan berfungsi secara bulat untuk menjahit bahan jahitan.
Themesin jahit zigzag will produce mechanical fatigue after long-term use. The coordination of various parts is not as good as before, and some small faults will occur. If the sewing material is wrinkled, it is due to the broken tip of the needle, the excessive tension of the bottom thread, and the improper adjustment of the differential mechanism. At this time, we should replace the needle, loosen the shuttle spring screw and readjust the differential mechanism. The reason why the lower part of the sewing material is "gnawed" to form grid tooth marks is that the tip of the cloth feeding tooth is too sharp and the pressure of the presser foot is too high. We can use an oilstone to polish the tip of the feeding teeth and loosen the pressure regulating screw of the presser foot. There is wired wool under the sewing material. There is a sound of breaking the fiber during sewing, which is due to the broken tip or too blunt of the machine needle. Resolutely replace the new needle. It is estimated that the stagnation of sewing material is due to too low feeding teeth and too high presser foot pressure. At this time, raise the cloth feeding teeth and tighten the pressure regulating screws.
Bahan jahitan bergerak ke sana ke mari juga kerana gigi penyusuan terlalu tinggi dan perlu dilaraskan. Sebab objek jahitan tidak boleh dijahit ke belakang ialah feed cam beralih dan kedudukan feed cam juga perlu dilaraskan. Kecondongan bahan jahitan yang tidak teratur juga disebabkan oleh pemasangan bengkok pada gigi penyusuan kain atau skru longgar anjing penyusuan kain. Hanya betulkan gigi suapan dan ketatkan skru gigi suapan.
Biasanya, anda boleh memerhati dan merumuskan lebih banyak dalam kerja anda, dan anda boleh menyelesaikan kesilapan kecilmesin jahit zigzagsendiri tanpa bertanya kepada orang lain.
