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How to eliminate the noise of computerized sewing machine

How to eliminate the noise of computerized sewing machine

Computerized sewing machineIt is suitable for sewing all kinds of fabrics, including hemming, bag opening and embroidery of thin and medium-thick materials. Thanks to the automatic lubricating oil feeding device, the equipment runs freely and the sewing tension is good. The computerized sewing machine can also sew stable stitches under high-speed rotation. But if the equipment is used for too long, the parts are worn, especially the oil pump worm gear and spindle wormWear, The local noise will increase, and on the whole, it is difficult to determine where the noise is generated. In order to eliminate the noise of the computerized sewing machine, we can start from the following two aspects:

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On the one hand, the new computerized sewing machine was adjusted. When assembling new equipment, if the size of the worm gear is negative, the gap is too large; if the size between the main shaft hole of the housing and the positioning hole of the oil pump is positive, the gap is too large and the noise will naturally increase. So, how to adjust the right parts? First, disassemble the filter screen under the oil pump, hold the four-star wheel with your hand, and swing it left and right to check the gap. If the worm gear of the oil pump cannot swing, it proves that there is no gap or it is crushed to death. The gap is about 0.01~0.02mm. It all depends on the operator's feeling, there is currently no advanced debugging method. When the gap between the above two cannot be adjusted, only the positioning hole of the oil pump needs to be increased. When the new computerized sewing machine is installed, it should be operated for 2 to 3 hours without load to ensure that the gears and worm gears of all components run exactly the same. In order to prevent the oil pump screws from loosening, you can apply a little glue on the screws to prevent them from loosening during high-speed sewing.

On the other hand, it is the adjustment of the old equipment. The way to repair the old computerized sewing machine is to increase the oil pump positioning hole for adjustment. In addition, it is recommended that the position and size of the oil pump positioning hole and spindle hole be processed according to the drawings, but the diameter of the oil pump positioning hole on the base can be 0.2~0.3mm larger than the original drawing size, that is, both new and old machines have room for adjustment. Otherwise, it is difficult to find out where the noise of the computerized sewing machine is, only one can be suspected, and it is difficult to solve the problem fundamentally if one is excluded. If you adjust according to the above method, the problem can be easily solved.

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