Method and device for regulating linear density of glass fiber through correcting drawing flow in real time

Abstract

The invention provides a method and a device for regulating linear density of glass fiber through correcting drawing flow in real time and belongs to a glass fiber production industry. The method comprises the following steps of: passing molten glass through a small hole formed on a bushing plate so as to form glass fiber; winding the glass fiber with a rotary winding wire to prepare a yarn cluster; generating a signal representing the weight of the yarn cluster; responding the weight signal of the yarn cluster, and generating a weight difference signal by referring to a set weight value; responding the weight difference signal, and generating a drawing flow correcting signal through comparing a characteristic curve or a characteristic database; and generating a combination feedback signal indicating the drawing flow which tends to be obtained through regulation according to the drawing flow correcting signal and the reference set drawing flow, and responding the combination feedback signal to correct the drawing flow so that the linear density of the glass fiber is regulated and the combination feedback signal value is used as the next set drawing flow value. Through using the method and the device, the fluctuation of the linear density of the glass fiber due to the fluctuation of the temperature of the bushing plate can be regulated, and the fluctuation of the linear density of the glass fiber due to variation of drawing flow can also be regulated.

Description

technical field [0001] The invention discloses a method and a device for adjusting the linear density of glass fibers by correcting the drawing flow in real time, belonging to the glass fiber manufacturing industry. Background technique [0002] Glass fiber is widely used in all walks of life. In order to ensure the weight of glass fiber produced, the linear density of glass fiber must be controlled. The main factors affecting the linear density of glass fiber are: first, the temperature of the bushing, which affects the temperature of the bushing. The temperature of the molten glass affects the viscosity of the molten glass, which in turn affects the linear density of the glass fiber; the second is the winding speed of the wire drawing machine. The product will increase the outer diameter of the bobbin, so the winding speed of the bobbin must be adjusted to adjust the drawing speed of the wire drawing machine to ensure the drawing speed, and the drawing speed directly affec...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: 1. The leaky plate works at high temperature, and the temperature sensor inside the leaky plate directly touches the high-temperature glass liquid, which makes the temperature sensor easy to age, thereby affecting the accuracy of the temperature sensor; 2. Even if this method can control the temperature stability At the ideal temperature, the glass fiber linear density cannot be guaranteed to remain unchanged, because there are other factors that affect the glass fiber linear density

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