Rotary die hold down assembly

Details Rotary die hold down assembly Rotary die hold down assembly

1988-10-24

1991-08-27

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

101150, 101153, B41F 500

Patent

active

050423797

ABSTRACT:
A rotary die hold down unit (10) is carried between opposed sideframes (12) of a printing press and includes a clamping unit (14) carried by each sideframe and a cross member (22) extending between said clamping units. The clamping units each include a base (34) having quick-release pins (62) for attachment to the sideframes. The sideframes include vertical slots (18) and an elongate adjustment member (52), is received by an adaptor sleeve (48) threadedly connected to the base and extending into the sideframe slot, the adjustment member and the sleeve cooperating to provide coarse and fine adjustment capability of the adjustment member. The cross member includes pressure blocks (20) at each end received within the sideframe slots for engagement by the adjustment members, and a pair of spaced roller blocks (24) having rollers (26) engageable with the rotary die (32) respectively at points on each side of the axis of rotation of said rotary die.

REFERENCES:
patent: 2581593 (1952-01-01), Luttenauer
patent: 2818014 (1957-12-01), Jacquart
patent: 3378902 (1968-04-01), Hoexter
patent: 4149461 (1979-04-01), Simeth

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