Yarn online weighing and sampling device and method

Abstract

The invention relates to a yarn on-line weighing and sampling device and method. The yarn on-line weighing and sampling device comprises a stage, an electronic scale, a tension regulating mechanism, a yarn winding mechanism and a control mechanism. According to the yarn on-line weighing and sampling device and method, the weight of bobbin yarns is monitored in real time through the electronic scale; and the control mechanism controls the yarn winding mechanism to wind yarns or stop winding yarns according to the weight of the bobbin yarns monitored by the electronic scale, and controls a tension frame driving device to drive a tension frame to rotate by a preset angle after controlling the yarn winding mechanism to stop winding yarns, so as to make the yarns of the bobbin yarns become relaxed from a tensioned state, and the electronic scale is adopted to weigh the yarns, and therefore, influence on a weighing result, which is brought about by a pull force applied to the bobbin yarns by tensioned yarns, can be avoided, and the weighing result can be more accurate, and therefore, the improvement of the precision of sampling can be benefitted. According to the yarn on-line weighing and sampling device and method, automatic on-line weighing and sampling are carried out through machines, and manual measurement and correction are not required, and therefore high efficiency can be achieved.

Description

technical field [0001] The invention relates to the field of textile machinery, in particular to an online yarn weighing and sampling device and method. Background technique [0002] In the textile industry, before large-scale yarn dyeing, it is necessary to take a small sample of yarn for small-sample dyeing to determine the formula for large-scale yarn dyeing, so as to avoid serious losses caused by large-scale yarn dyeing errors. At present, the length of the skein is measured by counting the number of turns of the small sample yarn. First, an operator needs to wind the yarn to measure the length. Manual yarn loading, yarn cutting, and unloading are frequent, and it is difficult to measure the length of the skein and the corresponding yarn weight. Accurate to the required value of the process requirements, such as 4.70±0.02g, and then an operator needs to use an electronic balance to weigh and correct, which takes a long time and is inefficient. Contents of the inventio...

AI Technical Summary

Problems solved by technology

At present, the length of the skein is measured by counting the number of turns of the small sample yarn. First, an operator needs to wind the yarn to measure the length. Manual yarn loading, yarn cutting, and unloading are frequent, and it is difficult to measure the length of the skein and the corresponding yarn weight. Accurate to the required process requirements, such as 4.70±0.02g, and then an operator needs to use an electronic balance to weigh and correct, which takes a long time and is inefficient

Images