MAGNETIC SUBSTANCE HOLDING DEVICE FOR HOLDING MAGNETIC SUBSTANCE HAVING THIN PLATE SHAPE AND TRANSFERRING DEVICE FOR TRANSFERRING NON-MAGNETIC SUBSTANCE HAVING THIN PLATE SHAPE WITH THE SAME

摘要

A magnetic material holding apparatus according to an embodiment of the present invention includes at least one permanent magnet, a ferromagnetic pole piece arranged to form a magnetic circuit for circulating a magnetic flow caused by the permanent magnet, And a control device for controlling a current applied to the coil, wherein the pole pieces have at least two holding surfaces, and the control device controls the current applied to the coils so that the permanent magnets Wherein the object to be attached has a plate shape, and the object to be attached has a plate shape, and the holding object has a holding surface The pole pieces are formed such that the average thickness is larger than the width of the holding surface.