Realization method of programmable controller integrating yarn cleaning and yarn breaking detection

Abstract

The invention relates to a realization method of a programmable controller integrating yarn cleaning and yarn breaking detection. The controller comprises a CPU (central processing unit) control module, a communication module, a sensing module, an input module, a motor driving module, an output module and a power supply module, wherein the sensing module adopts a phase-locked amplifier for extracting yarn shaking signals and diameter signals, the CPU control module adopts ladder diagrams for development, yarn simulated signals are converted into digital signals through an AD (analog-to-digital) sampling circuit, an embedded intelligent detecting algorithm is used for carrying out time domain and type frequency domain analysis on the yarn digital signals, the output module and the motor driving module are controlled to execute corresponding commands, and the transmitting of spinning parameters is realized through a high-reliability communication bus. Compared with the traditional detecting head, the realization method has the advantages that the system structure of the spinning control is simplified, the cost is reduced, and the system stability is improved.

Description

technical field [0001] The invention belongs to the technical field of control, and in particular relates to a method for implementing a programmable controller integrating yarn clearing and yarn breakage detection. Background technique [0002] During the development of the textile industry, various advanced detection technologies have been widely used, especially photoelectric detection technology. In many cases in the textile process, it is necessary to detect the yarn in motion, such as detecting yarn breakage, weft detection, and identifying coarse details. The softness of the yarn makes it vibrate at a certain frequency during the movement. When the light field is uneven, the position change caused by the jitter will change the intensity of the light signal received by the sensor. According to the motion characteristic of the yarn, the moving yarn and the static yarn (or no yarn) can be effectively distinguished. On the contrary, if the yarn is in a relatively un...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult for the traditional analog discrimination circuit to carry out integrated control of yarn clearing and yarn breakage detection

[0005] At present, the control system of the air spinning machine is based on the original yarn breakage detection device. After adding an electronic yarn clearer, it not only makes the whole system redundant and complicated, but also greatly increases the cost.

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