Patent ID: 6779791
Filing Date: 2004-08-24
Classification: B65H

Abstract:
A sheet materials processing apparatus comprising:conveying means for conveying sheet materials along a conveying path; first detecting means for detecting a shift amount of sheet materials being conveyed by the conveying means in the direction crossing the conveying direction; moving means following the detecting means along the conveying path, provided with a supporting arm supported at the center of the conveying path and shift correction rollers disposed on the supporting arm for moving sheet materials being conveyed by the conveying means in the direction crossing the conveying path; first calculating means for calculating a driving angle of the support arm based on a shift amount from a prescribed position detected by the first detecting means; second calculating means for calculating a number of revolutions of the shift correction rollers so that a speed component out of the peripheral speed of the shift correction rollers in the conveying direction of sheet materials becomes equal to a conveying speed by the shift correction rollers; support arm rotating means for rotating the support arm of the moving means based on the driving angle calculated by the first calculating means; correction roller rotating means for rotating the shift correction rollers of the moving means based on the number of revolutions calculated by the second calculating means; and first correcting means for correcting the shift from a prescribed position of the sheet materials by moving the sheet materials that are conveyed by the conveying means in the direction crossing the conveying path in the state with the support arm of the moving means rotated in the direction crossing the conveying path by the support arm rotating means and in the state with the shift correction rollers of the moving means being rotated at the number of revolutions by the correction roller rotating means.