TRANSFER DEVICE FOR STEEL CAN

PURPOSE:To reject a steel can which is nipped and turned down by the steel cans transferred in the horizontal direction at randon, during transfer. CONSTITUTION:A transfer device is equipped with a conveyor 4 which magnetically attracts and suspends a steel can and transfers it in the horizontal direction and a permanent magnet device 5 fixed over the transfer part of the conveyor 4. The permanent magnet device 5 is equipped with an upstream side magnet assembly body 7a, single pole magnet 7b which is perpendicular to the transfer direction and has nearly the half width of the trunk diameter of the steel can, and a downstream side magnet assembly body 7c, in this order. On each of the upstream side magnet assembly body 7a and the downstream side magnet assembly body 7c, a plurality of strip-shaped bodies whose undersurface consists of an N pole magnet strip and an S pole magnet strip in pair and extend in the transfer direction and which have the order of the magnetic poles in the width direction. The average magnetic flux density on the undersurface of the conveyor 4 in the vicinity of the single pole magnet 7b is smaller than that of the single pole magnet 7b, and the average magnetic flux density on the undersurface of the conveyor 4 in the vicinity of the single pole magnet 7 is nearly equal to that of the single pole magnet or slightly larger.