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US 6,347,582 B1Granted
Rotary imprint printing system
AssigneeHeidelberger Druckmaschinen Heidelberg
InventorJackson Hacker Jones
Life of this patent
Estimating the term…
Abstract
The imprint printing system allows imprinter head changes on the run. A printing roller, either an offset or a flexo printing roller, has an axial channel in which one or more imprinter heads are disposed. The imprinter heads can be selectively raised out of the channel so that the print surface projects radially above the periphery of the printing roller. In a variation of the basic concept, the imprinter heads are also axially movable along the axial channel. The individual heads can thereby be brought into a printing section defined by the location at which the product is to be imprinted. The respective imprinter head is raised for printing only in the printing section, while the other heads are withdrawn into the channel.
Claims17
A rotary imprint printing system, comprising:
- a printing roller having a periphery and an axial channel formed in said periphery;
- an imprinter head disposed in said channel, said imprinter head having a print surface substantially parallel with said periphery of said printing roller, said imprinter head being supported in said channel to be radially extendible out of said channel such that said print surface projects radially beyond a plane defined by said periphery of said printing roller;
- and
- a pressure fluid system filled with a hydraulic pressure fluid and partly disposed in said channel radially below said imprinter head for selectively raising and lowering said imprinter head, and including an inflatable member selected from the group consisting of a bladder and a bellows disposed radially below said imprinter head in said channel, a fluid control device for controlling a selective inflation and deflation of said inflatable member, and fluid lines fluidically connecting said inflatable member with said fluid control device.
1 more element
A rotary imprint printing system, comprising:
- a printing roller having a periphery and an axial channel formed in said periphery;
- a plurality of imprinter heads each disposed in said channel, said imprinter heads each having a print surface substantially parallel with said periphery of said printing roller and being supported in said channel to be radially extendible out of said channel such that said print surface projects radially beyond a plane defined by said periphery of said printing roller and to individually and selectively project from the periphery of said printing roller;
- a pressure fluid system for selectively raising and lowering each of said plurality of imprinter heads, said pressure fluid system including a plurality of inflatable members each disposed radially below a respective said imprinter head in said channel;
- and
- a fluid control device for controlling a selective inflation and deflation of each of said plurality of inflatable members, and fluid lines fluidically connecting said inflatable members with said fluid control device.
2 more elements
A rotary imprint printing system, comprising:
- a printing roller having a periphery and an axial channel formed in said periphery;
- a plurality of imprinter heads each disposed in said channel and having a print surface substantially parallel with said periphery of said printing roller, said imprinter heads each being supported in said channel to be radially extendible out of said channel such that said print surface projects radially beyond a plane defined by said periphery of said printing roller, to individually and selectively project from the periphery of said printing roller, and to axially travel along said axial channel and assume any of a number of defined positions along said axial channel;
- and
- a pressure fluid system filled with a hydraulic pressure fluid and partly disposed in said channel radially below said imprinter heads for selectively raising and lowering said imprinter heads.
1 more element
A rotary imprint printing system, comprising:
- a printing roller having a periphery and an axial channel formed in said periphery, said axial channel having a bottom and sidewalls, said sidewalls having recessed grooves formed therein, and including a carriage;
- an imprinter head axially shiftably supported by said carriage within said axial channel along said recessed grooves, said imprinter head having a print surface substantially parallel with said periphery of said printing roller, said imprinter head being radially extendible out of said channel such that said print surface projects radially beyond a plane defined by said periphery of said printing roller;
- and
- a pressure fluid system filled with a hydraulic pressure fluid and partly disposed in said channel radially below said imprinter head for selectively raising and lowering said imprinter head.
1 more element
A rotary imprint printing system, comprising:
- a printing roller having a periphery and an axial channel formed in said periphery, said axial channel being divided into three sections along an axial extent thereof;
- a plurality of imprinter heads each being disposed in said channel to individually and selectively project from the periphery of said printing roller to be selectively transported into any of said three sections, said imprinter heads each having a print surface substantially parallel with said periphery of said printing roller and being supported in said channel to be radially extendible out of said channel such that said print surface projects radially beyond a plane defined by said periphery of said printing roller;
- and
- a pressure fluid system filled with a hydraulic pressure fluid and partly disposed in said channel radially below said imprinter heads for selectively raising and lowering said imprinter heads.
1 more element
Dependencies are inferred from the claim text.