并条机罗拉中心距的在线自动调节

针对棉涤等混纺产品存在纤维长度差异,使棉条中纤维分布不匀,引起罗拉钳口控制不当,造成牵伸不匀的问题,介绍了棉纺并条机上按照纤维长度的变化对罗拉中心距进行自动调节的新技术,以适应特殊纤维的需要;调节机构包括快速傅里叶转换器、转换超限定频率宽度的信息及应用逻辑原理的判断、对螺杆的动作发出指令的机构,且每个控制动作的循环迅速;并条机上的中、后罗拉由电子控制的步进电机传动;代替了齿轮传动;在线罗拉隔距的调节可以减少牵伸不匀的产生,减少纺纱质量的波动。

On-line Auto Adjustment of Center Distance of Rollers on Drawing Frame

As to the problems such as length variation from blending products resulting in improper gripping due to poor distribution of fiber,introduction is made to a new technology of auto adjustment of the center distance of the rollers based on the length variation on the drawing frame for special production.The adjustmen mechanism including Fourier transformer,mechanism transforming the singnal of exceeding the limit rate and the application logic know-how for the screw with quick response.The rollers are contro...