Monitoring and alarming device for bare wire of enameled wire

Abstract

The invention discloses a monitoring and alarming device for the bare wire of an enameled wire. The device comprises an alarm, a relay, a controller for controlling the starting and stopping of the take-up process of an enameled wire, two guide wheels for guiding the take-up process of the enameled wire, and a detection power supply. The two guide wheels are respectively and correspondingly connected to the two output electrodes of the detection power supply. The relay is connected in series with anyone of the two guide wheels. The two guide wheels are connected with the detection power supply through eliminating the grounded state of the guide wheels. The above relay is adopted instead of a time relay, so that the influence of the power grid, a ground wire and a plurality of paintings on the enameled wire on electromagnetic induction signals can be avoided. When the surface of the enameled wire is bare, a detection electrode between the two guide wheels is switched on. The relay is energized. At this time, a normally closed contact is powered off, so that the controller is powered off. The take-up process of the enameled wire is stopped. At the same time, a normally open contact is switched on, and the alarm is energized to send out an alarm. The advantages of fast response speed, false alarm prevention, leaked alarm prevention, stable and reliable structure and the like are realized.

Description

technical field [0001] The invention relates to a detection and alarm device, in particular to a bare wire monitoring and alarm device suitable for enameled wires. Background technique [0002] At present, in the production process of enameled wire, the phenomenon of enameled wire without paint (bare wire) is often caused by improper operation or other technological reasons. In the industry, the liquid level is often controlled in the paint tank, but it cannot be completely avoided due to worker's operation error (with the wire leaving the paint tank). No paint phenomenon. Therefore, some enamelled equipment is equipped with a paint-free detection device after the painting process. When the enameled wire is taken up, two guide wheels are used to guide the enameled wire to be taken up. . [0003] In the prior art, the bare wire detection device usually connects one of the guide wheels to the ground, and the other guide wheel to +12V, and detects whether the varnish wire bet...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of false alarms and missed alarms in existing bare wire detection devices, the invention provides a structurally improved, practical and reliable enameled wire bare wire monitoring and alarming device

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