Broken thread detection device for textile machinery

Abstract

The invention discloses a broken thread detection device for textile machinery. The broken thread detection device comprises a mounting assembly, a thread guide wheel, a contact switch and a sensing assembly; the mounting assembly is provided with a penetrating space allowing a textile thread to penetrate through; the thread guide wheel is rotationally arranged on the mounting assembly, at least one side of the thread guide wheel is located in the penetrating space, and the thread guide wheel can make contact with the textile thread so as to change the guide direction of the textile thread; the contact switch is arranged on the mounting assembly; the sensing assembly is also arranged on the mounting assembly, the sensing assembly can sense the rotation action of the thread guide wheel, when the thread guide wheel rotates, the sensing assembly does not make contact with the contact switch, and when the thread guide wheel is static, at least part of the sensing assembly makes contact with the contact switch. Due to the fact that the mounting position of the thread guide wheel is stable and the thread guide wheel can only rotate around the axis of the thread guide wheel, in the using process, the traction path of the textile thread is stable, the tension of the textile thread is stable, and the traction stability of the textile thread is improved.

Description

technical field [0001] The invention belongs to the technical field of textile production, and in particular relates to a textile machine thread break detection device. Background technique [0002] Textile broken thread detection is an indispensable and important part of textile machinery and equipment. By detecting broken threads, the shutdown of textile machinery and equipment can be controlled in time to ensure the normal progress of subsequent textile operations. [0003] In the existing technology, the elastic member is generally arranged so that one end of the elastic member is against the textile thread, and the elastic member interacts with the textile thread. When the textile thread is broken, the elastic member elongates to trigger the corresponding switch; but the elasticity of the elastic member is not enough. Stable, easy to produce stretching fluctuations, which will cause fluctuations in the traction path of the textile thread, and finally cause corresponding...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the elastic member is generally arranged so that one end of the elastic member is against the textile thread, and the elastic member interacts with the textile thread. When the textile thread is broken, the elastic member elongates to trigger the corresponding switch; but the elasticity of the elastic member is not enough. Stable, easy to produce stretching fluctuations, which will cause fluctuations in the traction path of the textile thread, and finally cause corresponding fluctuations in the tension of the textile thread;

[0004] At the same time, in the prior art, the disconnection detection device only has a disconnection detection function, that is, it needs to occupy an additional independent installation space during installation.

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