| 摘要 |
<p>According to the present invention, a permanent magnet type lifting magnet device comprises: an upper core horizontally installed to have a length along a moving path; a plurality of permanent magnets arranged in intervals along a vertical direction while attached to a lower part of the upper core, and continuously forming a flux; a center core having a core plate on an upper end attached on a lower surface of the permanent magnet, generating an adsorption force by transferring a magnetic force of the permanent magnet to a coercive plate on a lower end; and an electric coil wound around the center core, preventing a magnetic force of the permanent magnet from being transferred to the coercive plate by forming the magnetic force when a power is supplied from the outside.</p> |
