Abrégé

A system (1) for detecting and tracing defects during the steps for processing materials, particularly spools or sheets of material obtainable by printing, by means of a printing method with inks based on solvent, water and UV; the system comprises an inspection device (2), a marking device (3), and a detection device (4) configured to read codes (11a, 11b, 11c, 11d) printed on the material (10); the system (1) further comprises: a) a processing unit (5), configured to receive and correlate the signals generated by the inspection device (2) and data generated by the detection device (4); and b) a control apparatus (6) configured to access the control information item and to locate, by means of the control information item, a portion (10a, 10b, 10c, 10d) of material containing a defect.

Classes IPC  ?

• B41F 33/00 - Dispositifs indicateurs, dispositifs de comptage, d'avertissement, de commande ou de sécurité
• B41F 33/16 - Systèmes de programmation pour la commande automatique de la succession d'opérations
• B41F 19/00 - Appareils ou machines pour effectuer des opérations d'impression en combinaison avec d'autres opérations
• B65H 26/02 - Dispositifs de sécurité ou d'avertissement, p. ex. détecteurs automatiques de défectuosités, mécanismes d'arrêt, pour mécanismes d'avance des bandes sensibles à la présence d'irrégularités dans la bande courante

Abrégé

A system for adjusting and monitoring the pressures of the printing rollers of a flexographic printing machine, which comprises at least one reader which is adapted to be placed at the printing rollers of the printing machine. The reader is adapted to detect the contrast of the print on the printing material wrapped around the central drum of the printing machine and is connected to a processing unit which is adapted to determine and control, as a function of the contrast detected by the reader, the position of the printing rollers with respect to the central drum in order to achieve the desired print.

Classes IPC  ?

• B41F 1/54 - Dispositifs de contrôle de la pression
• B41F 33/00 - Dispositifs indicateurs, dispositifs de comptage, d'avertissement, de commande ou de sécurité
• B41F 5/24 - Rotatives typographiques pour impression flexographique

Abrégé

A system for adjusting and monitoring the pressures of the printing rollers of a flexographic printing machine, which comprises at least one reader (7) which is adapted to be placed at the printing rollers (3, 4) of the printing machine. The reader (7) is adapted to detect the contrast of the print on the printing material (8) wrapped around the central drum (2) of the printing machine and is connected to a processing unit (10) which is adapted to determine and control, as a function of the contrast detected by the reader (7), the position of the printing rollers (3, 4) with respect to the central drum (2) in order to achieve the desired print.

Classes IPC  ?

• B41F 5/24 - Rotatives typographiques pour impression flexographique
• B41F 33/00 - Dispositifs indicateurs, dispositifs de comptage, d'avertissement, de commande ou de sécurité

Abrégé

A system for adjusting and monitoring the pressures of the printing rollers of a flexographic printing machine, which comprises at least one reader (7) which is adapted to be placed at the printing rollers (3, 4) of the printing machine. The reader (7) is adapted to detect the contrast of the print on the printing material (8) wrapped around the central drum (2) of the printing machine and is connected to a processing unit (10) which is adapted to determine and control, as a function of the contrast detected by the reader (7), the position of the printing rollers (3, 4) with respect to the central drum (2) in order to achieve the desired print.

Classes IPC  ?

• B41F 5/24 - Rotatives typographiques pour impression flexographique
• B41F 33/00 - Dispositifs indicateurs, dispositifs de comptage, d'avertissement, de commande ou de sécurité