Visual broken line detection system for warp knitting machine

Abstract

The invention discloses a visual broken line detection system for a warp knitting machine, comprising light sources, an image collecting module and a control module, wherein the image collecting module comprises multiple image collectors, the light sources are arranged corresponding to the image collectors, the image collecting modules collects the image of cloth on the warp knitting machine and transmits the image to the control module, and the control module controls the warp knitting machine according to the collected image information. According to the visual broken line detection system, the image collectors are erected above the cloth, the cloth on the warp knitting machine can be subjected to image collecting, the collected image is processed by an image processing module of the control module, whether the broken yarn situation occurs or not is judged, if the broken yarn situation occurs, a stop signal is transmitted to control the warp knitting machine to stop automatically, the limitations on type and thickness of cloth are overcome due to the strong adaptability of machine vision, the broken yarn automatic stopping is realized completely, so that the working efficiency is greatly improved, and the error judgment rate and miss judgment rate are reduced.

Description

technical field [0001] The invention relates to the field of warp knitting machine detection, in particular to a warp knitting machine visual breakage detection system. Background technique [0002] Because the yarn used for textile is relatively thin, the textile warp knitting machine will have abnormal phenomena such as yarn breakage during the weaving process. At this time, the warp knitting machine must be stopped immediately to avoid defects on the cloth surface. This kind of parking can be manual or can be It's automatic parking. At present, the automatic parking warp knitting machine generally uses two methods: laser shooting and cloth scanning. Laser shooting means that when the yarn is broken, it is blown to the laser shooting area by the fan to cut the light and control the shutdown; the cloth scanner refers to the special track for the scanning lens to detect the cloth surface, and the signal is transmitted to the self-stop system through the photoelectric sensor...

AI Technical Summary

Problems solved by technology

The laser cross-firing device is prone to misjudgments and missed judgments. Since it realizes automatic parking by cutting the yarn against the light, the machine will stop by mistake when there is a foreign object between the cross-firing lasers, which greatly reduces the work efficiency. When there is a deviation in the position of the laser beam, it is also prone to yarn breakage; the cloth surface scanner is aimed at the relatively flat cloth surface, and the uneven part will not be able to detect it. When the cloth is mesh or thick cloth, it will Unable to accurately stop when the yarn breaks, the limitation is relatively large, and it is easy to hit the worker during the scanning process, which poses a safety hazard

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