| 摘要 |
PURPOSE:To enable a side seam portion of an empty can be automatically located in a predetermined position by taking up the conveyed empty can, rotating it at the taken-up position and stopping the rotation when the side seam portion of the empty can is detected by a detector. CONSTITUTION:When an empty can A such as a barrel can seam welded at the barrel portion in a previous process and held by an empty can holder 7 comprising a magnet 5 in a backet conveyer 8 is transferred to a predetermined position, an upper lift 10 is lowered by an operative cam 11 to push the empty can A out of the holder 7, while a lower lifter 19 is raised by an operative cam 11' to receive the empty can A by an empty can receiver 18 and then lowered. Thus, the empty can A is mounted on rollers 21, 21 and rotated. During this rotation, the side seam portion is detected by a reflection system sensor 16. As soon as the side seam portion is detected, the rotation of the rollers 21 is stopped immediately and the empty can A is returned again to the empty can holder 7 by the operation of the lower and upper lifters 19, 10. |
