Rotary die board

Details Rotary die board Rotary die board

B - Operations, Transporting

26

D

B26D 7/26 (2006.01) B21D 28/34 (2006.01) B21K 5/20 (2006.01) B26F 1/14 (2006.01) B31C 3/00 (2006.01) B32B 1/08 (2006.01) B32B 29/00 (2006.01)

Patent

CA 2609426

An arcuate die board formed as a multi-layered paperboard structure. The die board is initially produced as a full cylindrical paperboard tube, which is subsequently cut lengthwise to form two or more part-cylindrical portions each of which is used to fabricate a die board. The die board is then cut to form the slots in its outer surface for mounting die tools. The multi-layered paperboard tube can be spirally wound, convolutely wound, or formed by a linear draw process. The part--cylindrical wall is formed predominantly, substantially entirely, or entirely of paperboard plies adhesively laminated together.

Un panneau de matrice courbe formé en une structure en carton multicouches. Le panneau de matrice est initialement produit sous forme d'un tube cylindrique complet en carton, qui est ensuite coupé sur la longueur pour former deux ou plusieurs parties partiellement cylindriques dont chacune est utilisée pour fabriquer un panneau de matrice. Le panneau de matrice est ensuite découpé pour former les fentes sur sa surface extérieure pour le montage des outils de matriçage. Le tube en carton multicouches peut être enroulé en spirale, enroulé de manière convolutée ou être formé par un procédé de tirage linéaire. La paroi partiellement cylindrique est formée principalement, presque entièrement ou entièrement d'épaisseurs de carton collées ensemble.

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