Rotary cutting die with scrap ejection

Details Rotary cutting die with scrap ejection Rotary cutting die with scrap ejection

1982-09-29

1985-02-19

Meister, James M.

Cutting

With product handling means

Means to move, guide, or permit free fall or flight of product

83139, B26D 718

Patent

active

044998023

ABSTRACT:
A cutting die is provided with scrap ejection provisions for removing scrap from the die. The ejection provisions are particularly effective for ejecting elongate scrap from elongate openings such as slots which are formed in carton blanks and the like, the blanks being produced from sheet material, such as corrugated board. The ejection system includes resilient ejection member located between two parallel cutting rules, which members eject or push out the scrap from between the rules in an asymmetrical manner, exerting more force along one edge of the scrap than the other. This causes the scrap to twist and be more easily ejected. An additional ejection member is located outside one of the cutting rules to cause a portion of the blank to deflect to further aid in the scrap ejection.

REFERENCES:
patent: 3167985 (1965-02-01), Madsen
patent: 3618438 (1971-11-01), Simpson
patent: 3805657 (1974-04-01), Simpson
patent: 3946627 (1976-03-01), Hofmann
patent: 3964655 (1976-06-01), Kotaro
patent: 4305716 (1981-12-01), Nickum
patent: 4306476 (1981-12-01), Saunders et al.

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