| 摘要 |
According to an embodiment of the present invention, a coil centering unit includes a fixed frame which is installed at a predetermined place, and has an internal installation space and a lifting hole in connection with the internal installation space; a movement frame which is arranged at an upper portion of the fixed frame, and positioned with a coil at an upper portion thereof; a lifting shaft which is connected to a lower portion of the movement frame, and inserted into the lifting hole to move with the movement frame; an elastic member which is installed between the fixed frame and the movement frame, and which provides elastic force toward the movement frame; a load sensor which is installed in the internal installation space, and arranged at a lower portion of the lifting shaft to measure a load of the lifting shaft; an alarm unit which informs a user of an alarm signal; and a controller which is connected with each of the load sensor and the alarm unit, and operates the alarm unit when values measured by the load sensor are out of a predetermined range. |
