초록 ▼

A lightweight, dimensionally stable steel rule die for cutting and scoring carton blanks having a die board containing the cutting and scoring rules which is formed of a laminated plastic construction adapted to register and coact with a steel counterplate over prolonged production runs and maintain

A lightweight, dimensionally stable steel rule die for cutting and scoring carton blanks having a die board containing the cutting and scoring rules which is formed of a laminated plastic construction adapted to register and coact with a steel counterplate over prolonged production runs and maintain registration within a tolerance range of about .+-.0.002 inches.

대표청구항 ▼

[ What is claimed is:] [1.] 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 formed therein, said die board further having a non-cellulose constr

[ What is claimed is:] [1.] 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 formed therein, said die board further having a 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;a plurality of rules frictionally fit within said slots;a steel counterplate coacting with said rules in said die board to produce cutting and scoring impressions in the carton blanks;a plurality of perimeter rails secured to the marginal side surfaces of said die board;a die chase surrounding said perimeter rails and said die board;at least one inner rail through at least a portion of said die board and spanning between opposed marginal side surfaces of said die boards; andan adjustable connector connecting said inner rail and opposed ones of said perimeter rails, wherein said adjustable connector compensates for dimensional differences between said rules with respect to said counterplate.