Method control of device baffle non-contact for airknife

摘要

PURPOSE: A method of controlling a non-contact baffle unit for an air knife is provided to enable a worker to move a baffle plate back by controlling the compressed air of a pneumatic cylinder depending on the position of the baffle plate. CONSTITUTION: A method of controlling a non-contact baffle unit for an air knife comprises next steps. High-pressure compressed air is received by the operation of a high-pressure switching valve(195) and a pneumatic cylinder(140) moves forward. At the same time, a driving motor rotates, a shaft moves a baffle plate(130) to be close to the side of a galvanized plate moving forward. If a sensor(170) senses the side of the galvanized sheet, the driving motor(160) and the shaft(150) stop to stop the baffle plate. At the same time, low-pressure compressed air supplied through a low-pressure control valve is received by the operation of a low-pressure switching valve(194).