| 摘要 |
PURPOSE: An apparatus for controlling vibration of strip in the galvanizing line is provided to measure vibration of the strip generated between galvanizing pot and turnaround roll, and to reduce vibration of the strip by applying vibration suppressing force to the strip according to signals for the vibration. CONSTITUTION: The apparatus for controlling vibration of strip in the galvanizing line comprises a sensor measuring vibration frequency and amplitude of the strip vertically moved upward by passing through galvanizing pot; a control part(144) for generating control signals for controlling vibration of the strip(100) according to magnitude of the vibration frequency and amplitude supplied from the sensor; and a compressed air supply means for ejecting compressed air onto the strip oppositely to a vibrating direction of the strip according to the control signals and controlling an ejection amount of the compressed air, wherein the sensor comprises gap sensors for measuring vibration directional displacement of the strip, wherein the compressed air supply means comprises a plurality of air nozzles(120,122), compressed air line comprising a plurality of sub-lines(134,136) connected to the respective air nozzles, valve whose opening and closing degrees are controlled according to the control signals, and power supply part(142) for supplying power supply to open or close the valve according to the control signals, and wherein the apparatus further comprises a display part(146) for displaying the vibration frequency and amplitude measured in the sensor in realtime.
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