Broken yarn detection circuit of ring spinning frame

Abstract

The invention discloses a broken yarn detection circuit of a ring spinning frame. The broken yarn detection circuit comprises a power supply module, a microprocessor module, a communication module, an alarming module, a signal detection module and an operation amplification module; when a steel wire ring made of a ferromagnetic material passes through the signal detection module, the signal detection module is used for converting vector changes of a magnetic field, caused by the steel wire ring, into an electric signal and transmitting the electric signal to the operation amplification module; the operation amplification module is used for processing the signal and transmitting the signal to the microprocessor module; the microprocessor module is used for analyzing the signal and judging whether the steel wire ring is normally operated or not; the steel wire ring is dragged by yarns and rotates on a steel collar. The broken yarn detection circuit of the ring spinning frame has the advantages of higher anti-interference capability, rapid responding speed, good stability, high reliability, compact structure and the like.

Description

technical field [0001] The invention belongs to the technical field of detection of textile process automation, relates to a yarn breakage detection circuit in a ring spinning frame, and is mainly used for designing an on-line intelligent detection and sensing system for yarn breakage of the ring spinning frame. Background technique [0002] For a long time, although traditional ring spinning has been continuously challenged by new spinning technologies such as rotor spinning, air-jet spinning, and vortex spinning, ring spinning has a wide range of raw material applications, good product spinability, and a wide range of spinning numbers. It still accounts for more than 80% of the world's total spinning production. The main reason why ring spinning is affected by the new spinning technology is the low production capacity per spindle, and the production capacity of ring spinning is mainly limited by the spinning end of the spinning frame. If the broken yarn cannot be dealt wi...

AI Technical Summary

Problems solved by technology

The photoelectric scanning detection scheme can effectively eliminate the influence and interference of ambient light by using modulated pulse beams, but in practical applications, the beam channel may be blocked by flying flowers, resulting in false alarms; the electromagnetic induction detection scheme has a simple structure and is not affected by environmental factors. Influence, good anti-interference, but the response speed is low, and the miniaturization design is difficult; the thermal sensing detection scheme has high thermal inertia, low detection sensitivity, poor system response, and is greatly affected by the working environment; The optical path interruption detection scheme of hooked yarn uses general-purpose photoelectric devices and does not have a specially designed optical system. For small targets such as traveler and yarn, the photoelectric detection signal is weak and the signal-to-noise ratio is low, resulting in a small threshold ratio level. It affects the detection sensitivity and reliability, and has poor adaptability to the spinning range

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