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AssigneeUteco S.p.A. Roto-Flexo & Converting
InventorsGiovanni Freddo, Agostino Pertile
Estimating the term…
A flexographic rotary printing machine has a supporting structure provided with two lateral shoulders, an impression roller over which a material in sheet form to be printed passes, at least one printing element or assembly arranged adjacent to the impression roller and having an inking unit, a printing plate cylinder and an anilox roller, which are sleeve cylinders, and a drive for transmitting motion between the impression roller and each printing assembly. At each shoulder there is at least one lateral support device for the advancement-retraction of the sleeve cylinders, adapted to move them between a retracted or resting position, in which a respective sleeve can be inserted or removed, and an advanced or active position, in which the cylinders are kept in contact with, and operatively connected to, the impression roller.
A temporary engagement device or cap for holding lateral cylinder ends of a rotating cylinder in their working position, in respective cradles, said device comprising a retractable element at an inlet-outlet portion of one of said cradles which is arranged to move between a partly locking position for the inlet-outlet of said cradle and a remote position to allow inlet and outlet exit into and from said cradle and wherein said retractable element has inclined-plane guiding chamfers for sliding engagement with an end of said cylinder.
Dependencies are inferred from the claim text.