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Influencing factors of vibration and noise of computer pattern machine

Influencing factors of vibration and noise of computer pattern machine

Although our country currentlyComputer pattern machineThe manufacturing level is constantly improving, but as far as the current situation is concerned, the vibration and noise limiters are still developing in the direction of intelligence and integration. If the problem of vibration and noise cannot be solved, it will directly affect the mobile balance of the computer pattern machine. Therefore, in order to improve the effect of vibration reduction and noise reduction, we need to conduct a comprehensive analysis of the structure, quality and accuracy of the sewing machine parts.

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The impact of vibration and noise on the computer pattern machine is mainly divided into vibration and noise. Among them, the influence of vibration can be carried out from the following aspects: One is the quality of the components. The quality of all mechanical parts fundamentally determines the operating state of the computer pattern machine. If there are problems such as unbalanced motor rotor, unbalanced pulley, or machining errors such as the inner and outer rings of rolling bearings and rolling bars, etc., it will cause the motor to vibrate, which will affect the running state of the entire machine. The second is that the upper shaft structure and related parts will also affect the running status of the computer pattern machine. In the production process, the upper shaft runs at high speed, and the imbalance between the hand wheel and the pulley and the imbalance of the upper shaft will generate a periodic excitation, which will cause vibration problems in the operation of the sewing machine. The third is the spiral bevel gear. When the computer pattern machine is in operation, the upper shaft needs to drive the vertical shaft and the lower shaft through a spiral bevel gear. In this process, if the quality of the spiral bevel gear does not meet the standard and the accuracy does not meet the standard, it will produce a huge excitation of the meshing frequency and its magnification frequency, which will increase the vibration of the sewing machine.

In addition, the effect of noise. If the computer pattern machine has vibration problems during operation, noise will be generated in the air transmission, and the vibration transmission path will also affect the noise level. For example, the dynamic performance of the platen and bottom plate of the computer pattern machine. And when the belt is running at high speed, friction between the belt and the air generates airflow noise. In short, the noise energy of the computer pattern machine is mainly concentrated in the same frequency spectrum component of the upper shaft rotation frequency and the triple frequency.

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