AUTOMATIC SELECTION APPARATUS OF SHEET MATERIAL

摘要

AN AUTOMATIC SELECTION APPARATUS OF SHEET MATERIAL An automatic selection apparatus of sheet material can automatically distinguish whether sheet materials such as sheets of paper are good or bad continuously. While the sheet materials are carried one by one in the direction perpendicular to the flowing direction in the manufacturing process or working process of the sheet materials with a leading edge thereof being held by a gripper, an optical type defect detection device detects a defect of the sheet material. accordingly, vibration of the sheet material is less and the defect can be detected exactly. A controller receives a signal of the defect detection device and drives a switching device which opens and closes the gripper at a defective sheet discharged portion or a good sheet stacked portion.