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US 6,250,218 B1Granted
Print unit
AssigneeG.D S.p.A.
InventorsFranco Carini, Mario Spatafora
Life of this patent
Estimating the term…
Abstract
The invention relates to a print unit for a packaging machine, in which a cavity, equipped with an armature made of ferromagnetic material and supporting, in operation, a blank to be printed, is mobile in front of a fixed electromagnet, which can be activated so as to attract the armature against a fixed print head, thus clamping the blank between the armature and the print head.
Claims12
A print unit comprising:
- a print head housed in a print station for printing a graphic symbol on a sheet, including an electromagnet in the print station;
- an armature made of ferromagnetic material and mobile away from and towards the print head under the action of a magnetic field produced by the electromagnet;
- feed means for feeding the sheet from a pick-up station to the print station in a position between the armature and the print head, said armature being supported by said feed means;
- and
- control means, being designed to activate the electromagnet so as to attract the armature against the print head.
2 more elements
Dependencies are inferred from the claim text.