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A DEVICE AND A METHOD FOR SENSING BREAKAGE OR END OF WARP YARN FOR A FABRIC WEAVING LOOM
A DEVICE AND A METHOD FOR SENSING BREAKAGE OR END OF WARP YARN FOR A FABRIC WEAVING LOOM
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机译:织造机织机的经纱断头或断头检测装置及方法
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摘要
The invention is a warp breakage/end sensing system and a device to detect end of a running yarn on a CWM used to make endless tubular fabric. The device of the invention incorporates a mechanism which causes a notification in the form of a signal (indicating yarn breakage or yarn end) to be sent to the loom operator in the situation where a yarn breakage is detected. The device employs a drop wire (6) which loses its elevation and falls (under its self-weight) from its normal operative position. The drop causes a first element (7) to rotate and come in contact (physical or non-physical) with a second element (8), thereby completing an electric circuit and sending a yarn breakage signal to the operator. Upon restoration of the yarn, the first element restores to its normal working position. In the case of a non-physical contact, the first sensing element enters the triggering region of the second sensing element thus causing a signal to be sent.
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