US 4,344,361 AGranted

Automatic blanket cylinder cleaner

AssigneeBaldwin-Gegenheimer GmbH

InventorsJohn MacPhee, Charles R. Gasparrini, Karlheinz E. H. Arnolds

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Abstract

An automatic blanket cylinder cleaner having a cleaner fabric adapted to contact the blanket cylinder. A cleaning cloth supply roller provides cloth for the cloth take-up roll. Positioned between these rolls is a water solvent dispensing tube, a solvent dispensing tube and an inflatable and deflatable mechanical loosening means which is adapted to move the cleaning fabric into and out of contact with the blanket cylinder. An air dryer means dries the blanket cylinder after the cleaning of debris. An advancing means advances the cleaning cloth intermittently onto the take-up roller by a control means in contact with the take-up roll which provides for uniform cloth advance during the cleaning cycle. There is a control means providing automatic and manual control.

Claims12

Dependent claims

A device for cleaning the rotating blanket cylinder of a printing press with a cleaning fabric comprising:

(a) frame means adjacent said blanket cylinder;
(b) means supported by said frame including a cloth supply roll and a cloth take-up roll for mounting the cleaning cloth adjacent said blanket cylinder;
(c) feeding means cooperating with said take-up roll for incrementally feeding substantially the same amount of cloth during each incremental feeding of the fabric regardless of the amount of cloth on the take-up roll;
(d) means for moving the cloth in a direction opposite from the blanket cylinder;
(e) an expandable bladder on said frame which causes the cleaning fabric to contact the blanket cylinder when in the expanded condition;
(f) pneumatic means for expanding said bladder;
(g) said feeding means including power means attached to said frame;
(h) one-way clutch means operatively associated with said power means to drive said take-up roller in one direction;
(i) control means in engagement with the cleaning cloth on said take-up roll, said control means controlling the amount of angular movement of said take-up roll depending on the amount of cleaning cloth on said cleaning cloth take-up roll;
(j) said control means including a crank arm operatively associated with said one-way clutch adapted to rotate with the shaft driven by said one-way clutch;
(k) carrier means on said crank arm and adapted to move radially with respect to the axis of said take-up roll along said crank arm;
(l) travelling pin means operatively associated with said carrier, said travelling pin being maintained in engagement with the cleaning cloth on said take-up roll and being adapted more radially with respect to the axis of said take-up roll with said carrier means and being adapted to be move in an arcuate path with said carrier means about the axis of said take-up roll;
and
(m) stop means on said frame adapted to engage said travelling pin and to limit rotational movement.

11 more elements

A device for cleaning the rotating blanket cylinder of a printing press comprising:

(a) a frame;
(b) a cleaning fabric;
(c) a cleaning fabric supply roll mounted with respect to said frame;
(d) a cleaning fabric take-up roll mounted with respect to said frame, and means for guiding said cleaning fabric from said supply roller past the blanket cylinder and to said take-up roll;
(e) expandable bladder means mounted with respect to said frame adjacent the blanket cylinder and adapted to move the cleaning fabric into and out of engagement with the blanket cylinder;
(f) a liquid solvent means mounted with respect to said frame and adapted to direct liquid solvent onto said cleaning fabric;
(g) air drying means mounted with respect to said frame and adapted to direct drying air to said blanket cylinder to dry the same;
(h) feed control means for intermittently turning the take-up roll so that the same length of cleaning fabric is fed past the blanket cylinder in a direction opposite to the direction of the blanket cylinder for each intermittent feeding of cleaning fabric regardless of the amount of cleaning fabric on the take-up roll;
and
(i) means for controlling the sequence and timing of the device;
(j) said control means includes means for engaging the cleaning fabric on the take-up roll for controlling the amount of rotation of said take-up roll.

8 more elements

Dependencies are inferred from the claim text.