Patent ID: 6691598
Filing Date: 2004-02-17
Classification: B26F,Y10T

Abstract:
A flat board die assembly for cutting and scoring carton blanks, comprising:a die board having opposed major surfaces and a plurality of marginal side surfaces, said die board having a plurality of slots receiving rules therein, said rules received inside said slots in a close friction fit, said die board having a lightweight construction; a die chase surrounding the marginal side surfaces of said die board; maintaining means operatively connected within said die board for maintaining positional relation between said rules within a range of about plus/minus 0.002 inches; and a steel counterplate coacting with said rules in said die board to produce cutting and scoring impressions in the carton blanks; wherein said lightweight construction includes a laminated non-cellulose construction which is substantially resistant to warpage, shrinkage and expansion due to humidity and temperature and yet is deformable under pressure caused by insertion of said rules into said slots; wherein said die board includes a plurality of perimeter rails secured to the marginal side surfaces of said die board; and wherein said maintaining means includes at least one inner rail spanning between opposed marginal side surfaces of said die board and an adjustable connector connecting said inner rail and at least one of said perimeter rails, wherein said adjustable connector compensates for dimensional differences between said inner rail and said die chase.