Abstract:
An apparatus (1) and a method for feeding a continuous tape (3) for forming labels (2) is disclosed, according to which a pair of rollers (5) advances the tape at an advancing speed that is calculated on the basis of the rotation speed of one cutting roller (6) that cuts the tape into labels, (2) at a signal that is indicative of the cut that occurred and at a positioning error of an actual image present on the tape with respect to a reference image. The real image is detected by a linear camera (9) or by a matrix camera.
Abstract:
A method for controlling the feed of tapes (1) in label devices provides the adjustment of the feed speed of a tape (1) according to a value of maximum correlation (pm) between a reference vector and between second vectors (Sj) related to images (2) existing on the tape (1) , so as to implement, with a determined frequency, the feeding of a tape portion (10) with length (It) so that the images (2) tend to be arranged in a centered position with respect to said tape portion or however at a wished distance from respective edges (12, 13) of said portion (10) .