Weft breakage detection device with function of simple setting

Abstract

A weft breakage detection device with a function of simple setting comprises a sensing source, a sensing unit and a micro-processing unit. The sensing source is mounted on a yarn guide bar of a shuttle and capable of swinging along with the yarn guide rod. The sensing unit comprises at least two sensors disposed at intervals. The sensors are used for respectively sensing the sensing source to generate corresponding signal values. The micro-processing unit is electrically connected with the sensors and capable of receiving the signal values for processing and determination. Therefore, the sensors can be used for automatically sensing the sensing source on the yarn guide bar and transmitting the sensed signal values to the micro-processing unit for determination so as to control the shuttle to stop, the effect of quick and simple setting is achieved, and the time consumed by an operator to make settings is reduced.

Description

technical field [0001] The invention relates to a weft yarn break detection device with simple setting function, which can control the shuttle to stop when the weft yarn breaks, so as to prevent defective products from being produced. Background technique [0002] By the way, most of the lightweight and cheap packaging bags used by ordinary people in daily life are mainly made of PE and PP woven bags, and they are usually made of different sizes of packaging bags by mechanical weaving. Among the machines, the circular knitting machine has many advantages such as fast production, stable quality and convenient use, so it has become the main machine for the industry to make cloth for packaging bags. [0003] However, the traditional circular knitting machine not only produces empty weft phenomenon due to thread breakage, but also produces empty weft phenomenon when the weft yarn is exhausted. Therefore, as long as the operator fails to detect in time and control the shuttle boa...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional circular knitting machine not only produces empty weft phenomenon due to thread breakage, but also produces empty weft phenomenon when the weft yarn is exhausted. Therefore, as long as the operator fails to detect in time and control the shuttle boat to stop early, the knitted product will be damaged. There are empty weft defects with insufficient weft threads on the surface, which cannot be remedied to form defective products, and the yield rate of woven products is reduced. For this reason, someone invented the weft yarn breakage sensor of the circular spinning machine and the weft yarn breakage sensor of the circular spinning machine Improvements to solve the above problems, wherein, these cases disclose that an induction source is fixed on the ejector of an ejection device, and a sensing device is used to sense the magnetic field generated by the induction source. and achieve the effect of controlling the stop of the shuttle boat; although both previous proposals can achieve the control of the stop of the shuttle boat, because the sensing device is single, the position of the sensing device during setting will often affect the sensing Whether the device is malfunctioning or not, it usually needs to be adjusted and set by a person with considerable experience to avoid the occurrence of malfunctions, let alone an operator who has just come into contact with the weft segment line sensor of the known circular spinning machine, it may It takes a longer time to adjust and set, so the known weft yarn breakage sensor has room and necessity to be improved.

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