Lubrication quantitative adjustment manner null of electrostatic lubrication

摘要

PURPOSE:To prevent oil application irregularities by allowing the number of rotations of a pump at a specified acceleration speed by which a supply amount can be obtained which exceeds an application oil supply amount obtained from a line speed signal and an oil application amount setting signal based on a speed acceleration signal. CONSTITUTION:If the transport of a belt-like metal plate 1 is started and its transport speed is accelerated, the number of rotations of a pump 5 which supplies an application oil to an electrostatic oil application device 4 is increased at a fixed accelerated speed which allows a feed amount in excess of an application oil supply amount obtained from a line speed signal and an oil application amount setting signal connected based on the transport speed of the belt-like metal plate 1. Consequently, there occurs no trouble such as an excess shortage of application oil supply to the belt-like metal plate 1 due to a time delay from the variation of the number of rotations of the pump 5 to the change of the amount of atomized application oil from the electrostatic oil application device 4 to an appropriate spray amount for the variation of the number of rotations of the pump. In addition, when the transport speed of the belt-like metal plate 1 is reduced, the pump 5 is gradually adjusted to a constantly reduced speed by which the supply amount below the application oil supply amount level set based on the line speed signal and the oil application amount setting signal is obtained.