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A SYSTEM FOR STACKING FLAT ARTICLES, SUCH AS SHEETS AND/OR PANELS, IN A RECEIVING STATION LOCATED DOWNSTREAM OF THE OUTLET OF AN OPERATING STATION OF A MACHINE, AND A METHOD FOR ACTUATING THE STACKING
A SYSTEM FOR STACKING FLAT ARTICLES, SUCH AS SHEETS AND/OR PANELS, IN A RECEIVING STATION LOCATED DOWNSTREAM OF THE OUTLET OF AN OPERATING STATION OF A MACHINE, AND A METHOD FOR ACTUATING THE STACKING
A method for stacking flat articles, such as sheets and/or panels, in a receiving station located downstream of the outlet of an operating station of a machine (M), comprising; detecting an inlet of an article (F) into the receiving station coming from said outlet in an advancement direction (W1); measuring the longitudinal advancement of a leading edge of the article (F) involving the receiving station; following measuring of a predetermined first portion (d1) of the advancement of the article (F), activating first means for engaging and supporting the article (F); longitudinally moving the first means for engaging and supporting, in phase relation with activation thereof, in a direction concordant to the direction of the first advancement direction (W1) and a velocity equal to the advancement velocity of the article (F); following measuring of a predetermined second portion (d2) of the advancement of the article that is greater than the first portion, activating at least second means for engaging and supporting the article in cooperation with the first means; longitudinally moving the first means for engaging and supporting, in phase relation with activation thereof, in a direction concordant to the direction of the advancement direction (W1) and a velocity equal to the advancement velocity of the article (F); centring the article with respect to an underlying loading plane (P) or head article of a stack of articles under formation thereon; deactivating the first and second means with a consequent release of the article onto the loading plane, or onto the head article of the stack.
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