Rotary die cutting apparatus

Details Rotary die cutting apparatus Rotary die cutting apparatus

1991-12-27

1993-07-27

Yost, Frank T.

Cutting

Tool or tool with support

Joint or connection

83673, 101226, 1013891, B26D 112, B26D 726

Patent

active

052302717

ABSTRACT:
Rotary die cutting apparatus comprising a driven rotary cylinder (10) on which is circumferentially mounted a removable forme (11) having knives (14) projecting radially therefrom. The forme (11) is magnetically retained on the surface of the cylinder (10) by a plurality of longitudinally extending steel bars (15, 16, 17) which locate within grooves (19) in the surface of the cylinder (10), each groove (19) coinciding with a plurality of longitudinally spaced magnets (20) which retain the forme (11) during rotation of the cylinder (10). The grooves (19) and magnets (20) are angularly displaced around the circumference of the cylinder (10) to enable a plurality of forme sections (11) to be mounted thereon according to the length of cut to be performed by the knives (14).

REFERENCES:
patent: 3745626 (1973-07-01), Bray
patent: 3782166 (1974-01-01), Whistler, Jr. et al.
patent: 3880030 (1975-04-01), Rosengren
patent: 4090162 (1978-05-01), Cardone et al.
patent: 4233873 (1980-11-01), Jessen
patent: 4399482 (1983-08-01), Inoue
patent: 4878407 (1989-11-01), Harrison et al.

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