Molded steel rule die for rotary die cutting

Details Molded steel rule die for rotary die cutting Molded steel rule die for rotary die cutting

1971-09-10

1976-07-13

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

264261, 264264, 264271, 264274, 264275, 264277, 264278, 264299, B29C 102, B29C 500, B29D 300

Patent

active

039694747

ABSTRACT:
A method of forming a steel rule die for the high speed rotary cutting and creasing of foldable carton blanks, characterized by the repeat accuracy of the die forming process, simplicity of assembly and operation for rotary die cutting procedures, and ease of maintenance. In carrying out the process, the rules of the die to be formed are initially set in their final cutting or working position with their cutting edges against a precisely formed, cylindrically curved mold surface, locked in place by removable spacer blocks and furniture of a solid and rigid material, and then permanently bonded into a rigid base with the working edges exposed, upon removal of the spacer blocks, for die cutting operation when the base is mounted on the surface of a rotary press cylinder.

REFERENCES:
patent: 2863337 (1958-12-01), Ackley
patent: 2993421 (1961-07-01), Philips et al.
patent: 3108327 (1963-10-01), Philips et al.
patent: 3302490 (1967-02-01), Bishop
patent: 3598010 (1971-08-01), Chambon

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