Yarn breakage monitoring system of hosiery machine

Abstract

The invention discloses a yarn breakage monitoring system of a hosiery machine. The system comprises a plurality of yarn breakage information pick-up units and a controller, wherein each yarn breakageinformation pick-up unit comprises an image pick-up assembly and an elastic clamping assembly, each image pick-up assembly comprises a CCD pixel pick-up unit, each assembly picks up a yarn pattern ona yarn path through the corresponding CCD pixel pick-up unit, and each yarn pattern is converted into an electric signal which is input into the controller; and each elastic clamping assembly is usedfor carrying out secondary yarn breakage verification after the corresponding image pick-up assembly inputs a yarn breakage signal, yarns are clamped on a yarn advancing path through a clamping portion, a Hall signal is generated through clamped stress, and then secondary yarn breakage judgment is completed and is fed back to the controller. The yarn breakage monitoring system of the hosiery machine is high in detection efficiency and high in precision, the labor intensity of workers can be reduced effectively, and waste of raw materials is reduced.

Description

technical field [0001] The invention belongs to the field of equipment detection technology and automatic control, and relates to a wire breakage monitoring system for a hosiery machine. Background technique [0002] Socks are indispensable daily necessities in people's daily life. They not only keep the feet warm but also play a certain role in protection. During the production of socks, automatic hosiery knitting machines are needed to knit socks. Thread breakage will easily occur in multiple processes: for example, when winding the yarn, a turntable will be used to wind under the action of the power device, because the high speed of the turntable will cause a relatively high speed of the yarn. Large pulling force, at this time, it is easy to cause yarn breakage during the winding process, so that the subsequent yarn cannot be wound on the turntable; and in the warping process, in order to obtain a good shape and a larger warp beam The winding density of the warping creel...

AI Technical Summary

Problems solved by technology

[0002] Socks are indispensable daily necessities in people's daily life. They not only keep the feet warm but also play a certain role in protection. During the production of socks, automatic hosiery knitting machines are needed to knit socks. Thread breakage will easily occur in multiple processes: for example, when winding the yarn, a turntable will be used to wind under the action of the power device, because the high speed of the turntable will cause a relatively high speed of the yarn. Large pulling force, at this time, it is easy to cause yarn breakage during the winding process, so that the subsequent yarn cannot be wound on the turntable; and in the warping process, in order to obtain a good shape and a larger warp beam The winding density of the warping creel is generally equipped with a tensioner to add tension to the yarn, and the external tension of this tensioner structure will also cause the yarn to break; in addition, during the weaving process, it is also easy In case of yarn breakage, in order to prevent the output of too many unqualified textiles, it is not only necessary to re-arrange the laying thread, but if the thread breakage cannot be found in time, it is easy to cause the hosiery machine to do useless work, affecting the textile efficiency and affecting the quality of socks product quality

[0003] Under traditional conditions, the spinning workers need to walk back and forth in front of the spinning machine to find the yarn breakage in time. After the yarn breakage, the hosiery machine stops, and then the workers go to find the position where the yarn breakage occurs, and put the yarn back into place. It is labor intensive to re-thread and connect the thread. At the same time, because the yarn is relatively thin, it is not easy to find the location where the yarn breaks. These reasons make it difficult to find the thread breakage during the spinning process. The lower equipment has been idling or has been running under abnormal conditions for a period of time, which will cause a lot of waste. At the same time, the spinning cycle reduced by each bobbin of yarn due to thread breakage cannot be accurately calculated, and it is difficult to accurately control Yarn quality and statistical yarn yield

At present, some enterprises are also gradually using photoelectric sensors, infrared sensors, physical springs, etc. to detect yarn breakage. The operator feeds back the broken thread information, and can only judge that the yarn is broken, and cannot intuitively and specifically find the position of the broken thread

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