Rotary die cutting

Details Rotary die cutting Rotary die cutting

1984-03-14

1986-09-02

Schran, Donald R.

Cutting

Cutting motion of tool has component in direction of moving...

Orbital motion of cutting blade

83343, 83663, 493 60, 493 64, 493370, 76107R, B31B 114, B26D 162

Patent

active

046088954

ABSTRACT:
A pair of rotary dies with lands having coacting cutting edges which cut blanks of material from a web passing between the rotating dies. To provide a clean cut and improved squareness of the cut ends, a side face of the land adjacent the cutting edge has a positive rake. To insure that the cutting edges can be brought into coacting relationship to produce a clean cut, they are located and arranged on the dies so that they can be varied and adjusted axially and in rotary phase relationship to each other. A die stand for positioning, adjusting and driving the rotary dies, and a method for making negative electrode cylinders for producing the rotary dies by hardening, grinding and electric discharge machining blank cylinders of tool steel, are also disclosed.

REFERENCES:
patent: 3283635 (1966-11-01), Johnson
patent: 3528333 (1970-09-01), Hornmung
patent: 3578761 (1971-05-01), Sarka
patent: 3895549 (1975-07-01), Noda
patent: 3905283 (1975-09-01), Baker
patent: 3981213 (1976-09-01), Lopman
patent: 4393738 (1983-07-01), Heyden
patent: 4493235 (1985-01-01), Martin

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