Multicolor flexographic machine with a device for automatically

Details Multicolor flexographic machine with a device for automatically Multicolor flexographic machine with a device for automatically

1990-05-29

1991-04-30

Crowder, Clifford D.

Printing

Multicolor

Rotary machines

101216, 414911, B41F 524, B41F 1300

Patent

active

050108131

ABSTRACT:
Multicolor flexographic machine comprising a plurality of printing units, a robot in close relationship with the printing units and arranged to remove in succession each block-holding roller from its working position on the flexographic machine, to place it on a roller support trolley and to replace it with another block-holding roller available on the roller support trolley. A system for presetting the block-holding rollers is provided to obtain correct printing overlap in the machine and is controlled by an actuation unit which governs a contact-separation sequence of the rollers in each printing unit with micrometric adjustment of the roller pressure. Each block-holding roller is held in position free to rotate by automatically opening and closing holding caps.

REFERENCES:
patent: 3789757 (1974-02-01), Motter et al.
patent: 3876087 (1975-04-01), Osta
patent: 4137843 (1979-02-01), Ottenhue
patent: 4586434 (1986-05-01), Tokuno et al.
patent: 4932827 (1990-06-01), Schlunke et al.

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