Index control system for printing apparatus

Details Index control system for printing apparatus Index control system for printing apparatus

1993-06-04

1994-04-12

Eickholt, Eugene H.

Printing

Stenciling

Processes

101126, 101485, 101232, B41M 112

Patent

active

053016084

ABSTRACT:
This invention relates to an apparatus and method for controlled indexing of an article to a printing station. In accordance with one aspect of the invention, the apparatus comprises an endless printing blanket carried by rollers positioned within the blanket and a translatable carriage assembly operatively associated with the blanket. The assembly includes an expandable clamping member which, upon selected expansion, contacts the blanket to secure the assembly thereto. The assembly follows the blanket as it (and the article it supports) are indexed to the printing station. An encoder monitors the distance traveled by the blanket during indexing and corrects for variation between the distance traveled and a preset distance. Upon arrival of the article at the printing station, the clamping member contracts, concomitantly releasing the blanket. A cylinder then returns the assembly a selected distance in position for another indexing movement, and so forth.

REFERENCES:
patent: 3903792 (1975-09-01), Vertegaal
patent: 3949864 (1976-04-01), Montsant
patent: 4173928 (1979-11-01), Mitter
patent: 4492163 (1985-01-01), Ericcson
patent: 4589335 (1986-05-01), Svantesson
patent: 5245922 (1993-09-01), Klemm

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