电脑刺绣机的横梁减振实验探讨

Damping experimental research for the beam of computerized embroidery machine

针对电脑刺绣机横梁振动直接影响电脑刺绣机的刺绣质量和断线率问题,从横梁减振分析出发,设计了横梁减振装置。通过改变横梁两端固定方式,增设直角弯梁后撑横梁,加装横梁橡胶减振器等方法,在不同速度工况下进行振动测试,以减小横梁振动的幅值。实验得出电脑刺绣机横梁减振实验装置的横梁水平和垂直弯曲振动的临界转速。结果表明,通过改变横梁两端的固定方式,增设直角弯梁后撑横梁和加装橡胶减振器均能有效地减小横梁水平和垂直弯曲振动位移幅值。

Considering the fact that beam vibration of the computerized embroidery machine affects directly the embroidery quality and the broken end ratio, the beam damping equipment is designed based on the study of the beam damping. The vibration test is marked in different velocities to probe the effective way of the beam damping by changing the fixed type of the beam on two ends, setting up the curve beam with right angle to sustain the beam, and installing the rubber damper, so as to reduce the amplitude of the beam vibration. The critical rotary speeds of the beam under horizontal and vertical bending vibration are figured out by experimental research. It is found that the above measures can effectively reduce the amplitude of the beam under horizontal and vertical bending vibration.