METHODS AND APPARATUSES FOR MAKING LITHOGRAPHIC PLATES

The present invention provides methods and apparatuses for forming a mounting flange on a printing plate comprising first and second portions having an arcuate portion therebetween and defining a mounting flange angle. A bending device comprising a forming surface having a radius that is less than a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DEIS, ROBERT, M, HOELLE, MATTHIAS, BURKHART, DAVID, G
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The present invention provides methods and apparatuses for forming a mounting flange on a printing plate comprising first and second portions having an arcuate portion therebetween and defining a mounting flange angle. A bending device comprising a forming surface having a radius that is less than a desired radius for the arcuate portion can be used to form the arcuate portion in accordance with the present invention. This can be done by forming the arcuate portion to have a plurality of spaced apart bends that cooperatively define the arcuate portion. L'invention porte sur des procédés et appareils de formation de flancs de montage de plaques lithographique comportant une première et une deuxième partie reliées par une partie incurvée et déterminant l'angle du flanc. Le dispositif de courbure de l'invention comporte une surface de formation d'un rayon inférieur au rayon désiré de la partie incurvée à former, laquelle présente une série de courbures séparées qui ensemble forment la partie incurvée.