Automatic winder residual yarn detecting device and method

Abstract

The invention provides an automatic winder residual yarn detecting device and method. The automatic winder residual yarn detecting device comprises a tray, a bobbin pulling belt, a bobbin pulling clamp wheel, a bobbin lower pressing plate, a residual yarn detecting assembly, a bobbin middle pressing plate, a residual yarn discharging channel, a bobbin upper pressing plate, an empty bobbin discharging channel and a controller. The device is characterized in that the residual yarn detecting assembly is installed on the bobbin middle pressing plate and comprises a residual yarn probe, a sensor, aprobe balance support, the sensor is connected with the controller, and the residual yarn probe comprises a measuring probe body and a measuring probe steel wire. When a bobbin passes through the middle pressing plate, the steel wire on the probe and the bobbin rub to generate an upward friction force, whether residual yarns exist on the bobbin or not is judged according to the magnitude of the friction force, if the bobbin is empty, the empty bobbin enters the empty bobbin discharging channel, and if the residual yarns exist on the bobbin, the bobbin enters the residual yarn discharging channel. The residual yarn detecting assembly is ingenious in structure, the measuring probe steel wire is not prone to being abraded, the detecting accuracy is high, and long-time, safe and reliable running can be achieved after installation and trial run are performed once.

Description

technical field [0001] The invention belongs to the technical field of textile machinery and relates to the improvement of an automatic winder, in particular to a residual yarn detection device and a detection method of an automatic winder. Background technique [0002] The automatic winder is to wind the bobbin with a smaller capacity into a bobbin with a larger capacity. A bobbin is usually wound by 30-40 bobbins. During the unwinding process of the bobbin, most of the bobbin It will be completely unwound into an empty tube, and the empty tube will be returned to the previous process for reuse, but there are always some bobbins that cannot be completely unwound, leaving a small part of the yarn on the bobbin, or even only a few turns of yarn. This bobbin with only a small amount of yarn is called residual yarn. On the tray-type automatic winding machine with a high degree of automation, the empty bobbins and residual yarn bobbins are automatically pulled out by a special ...

AI Technical Summary

Problems solved by technology

On the existing automatic winder, there are usually two ways for the residual yarn detection device, one is to use the image sensor to judge, the accuracy is high, but the cost is very high; the second is to use the brush to detect, the cost of the detection device is low, However, the brush is easy to wear, the detection accuracy is low, and the detection device needs to be adjusted frequently, which affects the working efficiency of the automatic winder

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