Abstract:
A device for the control and management of the printing parameters of a printing machine, particularly with a plurality of consecutive printing processes, comprising at least one video camera (2) associable with a printing and conversion assembly (3) and movable along a motorized guide (4) in order to acquire a print medium (5), image processing means being further comprised which are functionally associated with the video camera (2) to search, recognize and measure on the image of the print medium (5) acquired by the video camera (2) the printing values of at least one reference register mark reproduced on the print medium (5), the image processing means being functionally connected to means for the actuation of the printing and conversion assembly (3) to correct and restabilize the printing values according to the difference between the printing values measured by the image processing means and the desired theoretical printing values.
Abstract:
The present invention relates to a device (1) for replacing the printing roller (130) in a printing unit (2), in particular for in-line rotary flexographic machines.
Abstract:
A printing assembly (1), particularly for flexographic prints with removable printing roller, comprising at least two lateral uprights (3, 4) which face each other, each one defining a lateral cradle (11, 12) for supporting a motorized spindle (10) that supports a printing roller (7), each one of the lateral cradles (11, 12) comprising, at an upper portion thereof, at least one pair of supporting arms (13, 14) associable with the ends (10a, 10b) of the motorized spindle (10) protruding from the printing roller (7), for each one of the protruding ends (10a, 10b), a collar element (15, 16) being provided which is keyable onto the corresponding protruding end (10a, 10b) and associated rotatably with a flanged element (17, 18) that can be arranged to rest on a respective pair of supporting arms (13, 14) and engageable with locking means (26) of the printing assembly (1) for the retention of the flanged elements (17, 18) to rest on the pairs of supporting arms (13, 14), the collar elements (15, 16) being integral with the printing roller (7) for their removal together with the printing roller (7) from the motorized spindle (10).