A Calibration Method of Yarn Tension Based on Load Cell

Abstract

The invention relates to the technical field of carbon glass fiber spreading, and in particular to a method for calibrating yarn tension based on a load cell, including calibrating the actual pressure value on the load cell; passing the yarn through a yarn swing bar and a yarn storage bar And the fiber spreader rod connected with the yarn sensor; hang a weight of G on the yarn between the two yarn storage rods; pull the yarn to make the weight rise to the highest position, and record the sensor at this time The pressure value Mmax displayed on the top; reduce the yarn tension, make the weight drop to the lowest position, record the pressure value Mmin displayed on the sensor at this time; calculate the range of the yarn tension change value; take the weight at its height The value at the central position of the weight, calculate the gram weight coefficient K2 according to the weight of the weight; maintain the weight at the middle position of the height; the weight of the root weight calculates the yarn tension and displays it. The invention can display the tension value of the yarn in real time without affecting the fiber spreading process.

Description

technical field [0001] The invention relates to the technical field of carbon glass fiber spreading, in particular to a method for calibrating yarn tension based on a weighing sensor. Background technique [0002] Yarn tension refers to the tensile force on the yarn during processing, which can be understood as the degree of tension of the yarn after it is subjected to an external force. In the field of carbon glass fiber, the tension control of the yarn is particularly important during the fiber spreading process of the yarn, because the fiber spreading is to stretch the yarn and change the width of the yarn through other fiber spreading equipment, and finally obtain What is used is the yarn of uniform width wound on the take-up device. If the yarn tension changes greatly during this process, the quality of the final yarn will be greatly affected, and its appearance and mechanical properties cannot meet the requirements. [0003] In the prior art, the yarn tension is most...

AI Technical Summary

Problems solved by technology

If the yarn tension changes greatly during this process, the quality of the final yarn will be greatly affected, and its appearance and mechanical properties cannot meet the requirements.

[0003] In the prior art, the yarn tension is mostly measured by pulling the yarn. This measurement method is equivalent to applying an additional tension to the yarn. The additional tension will change the width of the yarn and cannot be measured on the yarn. It is used during the thread pulling process, and the tension on the yarn cannot be displayed in real time

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