Device and method for preventing reverse rotation of twisted yarns

Abstract

The invention discloses a device and method for preventing reverse rotation of twisted yarns. The device comprises a spinning cake, a yarn guide ring and a bobbin; yarns on the spinning cake penetrate through the yarn guide ring and are wound on the bobbin; the device further comprises a pressure sensor and a slide rail; the sliding rail is arranged between the spinning cake and the yarn guide ring; the pressure sensor is arranged on the sliding rail in a sliding mode; and the pressure sensor can slide to abut against reversely rotating yarns on the spinning cake. According to the device, when the yarns rotate reversely, the pressure sensor senses the pressure, at the moment, an alarm can be given for shutdown, the pressure sensor can be controlled to continue to move towards the yarns, the tension of the yarns can be increased, the tension can force the yarns to be unwound unsmoothly or broken, the unsmooth unwinding can improve abnormity, and the yarn breaking mode can stop loss in time, so that the purpose of preventing reverse rotation of the yarns is achieved; and automatic processing can be achieved, so that the manpower is reduced.

Description

Technical field [0001] The present invention relates to the field of twisting lines, and more particularly to devices and methods for preventing twisting inversion. Background technique [0002] During the twisting process, due to the incompatification of the figurus due to the pensions on the decomposed yarn during the decomposition (commonly known as "reversed"). During the twisting process, the twist line mainly passes the original yarn on the silk cake, and then wraps around the gauze in the lower part, if the original yarn on the silk cake is not smooth during the decomposition process, the original The yarn will continue to rotate with the silk cake to turn around the silk cake. If the original yarn is not broken, then the original yarn will continue to wrap the silk cake, but not only the twisted land is not reached. Instead, the raw yarn that is wound back to the silk cake will waste losses. In this case, the twisting machine itself cannot discriminate the abnormal situat...

AI Technical Summary

Problems solved by technology

During the twisting process of the twisting machine, the raw yarn on the silk cake is mainly unwound, and then twisted and wound onto the bobbin below. The yarn will continue to rotate along with the silk cake to wind back to the silk cake in reverse. If the original yarn is not broken at this time, the original yarn will continue to wind back to the silk cake. At this time, the purpose of twisting will not be achieved. On the contrary, the original yarn wound back on the silk cake will be wasted and lost

In view of this situation, the twisting machine itself cannot judge the abnormal situation at this time and continue to run. If the patrol personnel fail to find out in time, it will cause a lot of losses

At present, in this case, it is often only possible to rely on manual judgment

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