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How to sew elastic thin materials with a computerized sewing machine

How to sew elastic thin materials with a computerized sewing machine

OneComputerized sewing machineWhen processing different fabrics, it is usually impossible to achieve the same effect, and even automatic adjustment will not achieve the ideal state. For example, when we use a sewing machine to sew elastic thin materials, we will find that the stitches are very tight. Even if the bottom thread is loosened, the stitches are still tight and have no elasticity. If you stretch the stitches of the computerized sewing machine a little bit longer, it will split.

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Then, when using a computerized sewing machine to sew different fabrics, we need our resilience to make reasonable adjustments to different fabrics. Let's take the sewing of elastic thin materials as an example to explain briefly. When sewing thin elastic materials with a computerized sewing machine, the thread of the bobbin case should be loosened first, because the thread is loose when it is pulled out of the needle plate hole. Due to the sewing of elastic thin materials, it is necessary to adjust the coordination of each mechanism of the equipment. The details are as follows: First, the needle hole of the needle plate of the computerized sewing machine should be small, the needle groove should be small, the teeth should be thin and the height of the needle plate should be about 1/3. The second is to adjust the putting time of the fabric to make it faster than the original time so that the stitching thread will not be pulled together. Open the side cover of the computerized sewing machine, you can see that the lifting gear on the upper shaft feeds the eccentric shaft, loosen the fastening screw on the eccentric shaft, keep the eccentric shaft unclear, and use the other hand to turn the tail wheel toward Turn slightly in the opposite direction to ours and tighten the fastening wire on the eccentric wheel. Then relax the bottom thread and adjust repeatedly until the upper and lower threads are loose at the same time and the formed thread is good so that the thread will not pull the fabric together during the sewing process. The third is to adjust the pressure of the presser foot of the computerized sewing machine, not too tight. The general adjustment method is to lay a layer of elastic thin fabric under the presser foot to adjust the pressure. After adjustment, the fabric can be pulled under the presser foot with one hand. .

In addition to the above-mentioned points, when using a computerized sewing machine to sew elastic thin fabrics, we must also master the corresponding operating technical requirements and master the sewing of elastic thin fabrics. In order to prevent the elastic thin material from shrinking after leaving the presser foot, one hand must pull the fabric in front of the presser foot and the other hand to bring the fabric to the chest. In this way, the elastic thin material sewn by the computerized sewing machine can not only maintain the elasticity, but also can ensure that the suture will not break, so as to meet the quality requirements of the production technology.

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