Ink fountain with a fountain roller in the inking mechanism of printing presses
AssigneeHeidelberger Druckmaschinen AG
InventorsJurgen Deschner, Andreas Schulz
Life of this patent
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Abstract
An ink fountain with an ink-duct roller in the inking mechanism of printing presses, with a device for filling printing ink into the ink fountain, is described. The device for filling ink is mounted on a sled so that it can be moved back and forth in the longitudinal direction of the ink fountain. A sensor is fastened to the sled, and when the ink level is too low, the sensor controls the ink feed. Thereby, a precise regulation of the amount of ink added can be achieved by means of a downstream dosing device.
Claims20
A method for supplying ink for an ink fountain in a printing mechanism of a printing press with a device for supplying ink, which ink fountain having a longitudinal dimension, said ink supply device comprising:
- a sensor arrangement being configured to emit signals to detect the level of ink in each of at least two zones of an ink fountain;
- said sensor arrangement being configured and disposed to sweep the surface of ink in each of at least two zones of an ink fountain, zone by zone, with said signals from said sensor, and determine a deviation from a desired ink level in each of the at least two zones;
- an ink dispensing arrangement;
- and said ink dispensing arrangement being configured to dispense ink to at least one zone of at least two zones of an ink fountain upon determining a low ink level in the at least one zone of the at least two zones;
- said method comprising the steps of:
- determining a desired ink level in each of at least two zones of an ink fountain;
- moving said ink supply device back and forth in the longitudinal direction along said ink fountain;
- emitting signals with said sensor arrangement to detect the level of ink in each of said at least two zones;
- sweeping the surface of ink in each of said at least two zones, zone by zone, with said signals from said sensor arrangement, by moving said sensor arrangement back and forth in the longitudinal direction along said ink fountain;
- determining a deviation from the desired ink level in each of said at least two zones;
- actuating said ink dispensing arrangement to dispense ink to at least one zone of said at least two zones upon determining a low ink level in said at least one zone of said at least two zones;
- continuing dispensing ink to said at least one zone of said at least two zones having a low ink level;
- continuing dispensing ink until a desired amount of ink is dispensed to said at least one zone of said at least two zones having a low ink level;
- and
- terminating dispensing ink upon dispensing of said desired amount of ink.
A device for supplying ink for an ink fountain in a printing mechanism of a printing press, said ink supply device comprising:
- a sensor arrangement being configured to emit signals to detect the level of ink in each of at least two zones of an ink fountain;
- said sensor arrangement being configured and disposed to sweep the surface of ink in each of at least two zones of an ink fountain, zone by zone, with said signals from said sensor arrangement, and determine a deviation from a desired ink level in each of the at least two zones;
- an ink dispensing arrangement;
- and
- said ink dispensing arrangement being configured to dispense ink to at least one zone of at least two zones of an ink fountain upon determining a low ink level in the at least one zone of the at least two zones.
A method for supplying ink for an ink fountain in a printing mechanism of a printing press with a device for supplying ink, said method comprising the steps of:
- determining a desired ink level in each of at least two zones of an ink fountain;
- emitting signals with a sensor arrangement to detect the level of ink in each of said at least two zones;
- sweeping the surface of ink in each of said at least two zones, zone by zone, with said signals from said sensor arrangement;
- determining a deviation from the desired ink level in each of said at least two zones;
- actuating an ink dispensing arrangement to dispense ink to at least one zone of said at least two zones upon determining a low ink level in said at least one zone of said at least two zones;
- continuing dispensing ink to said at least one zone of said at least two zones having a low ink level;
- continuing dispensing ink until a desired amount of ink is dispensed to said at least one zone of said at least two zones having a low ink level;
- and
- terminating dispensing ink upon dispensing of said desired amount of ink.
Dependencies are inferred from the claim text.