System for regulating ink injector supply in a print head and printing equipment including same
AssigneeUnited Barcode Systems, S.L.
InventorAntoni Maria Bonet Lozano
Life of this patent
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Abstract
The present invention relates to a system for regulating ink injector supply in a print head, of the type installed in printing equipment and that use ink injectors which, by the installation of a measurement assembly parallel to the head and configured to emulate said print head, allows making an ink pressure measurement that does not require placing the ink system next to the head and prevents the use of pressure sensors with a wide range, using a single sensor without having to known the elevation of the head with respect to the system, nor the density of the liquid, or even the variation of viscosity with temperature.
Claims7
A system for regulating ink supply to injectors of a print head with ink recirculation system, characterised in that the system for regulating ink supply comprises at least one measurement assembly installed parallel to the flow of ink to the injection head emulating the conditions of said injection head, where the measurement assembly of the system for regulating ink supply comprises at least:
- a pressure measurement point to which a pressure sensor is connected;
- a first connection of the pressure measurement point in an ink supply inlet circuit of the print head;
- and
- a second connection of the pressure measurement point in an ink supply outlet circuit of the print head;
- where the first and second connections of the measurement point to each of parts of an ink supply circuit have identical characteristics of hydraulic resistance to ink flow;
- and
- where each connection of the measurement point to each of the parts of the ink supply circuit includes at least one or more conduct segments and connection elements to the ink supply circuit, where the hydraulic resistance to ink flow from the point of connection of the measurement assembly at the ink inlet circuit of the print head to the pressure measurement point is identical to the hydraulic resistance to ink flow from the pressure measurement point to the connection point of the measurement assembly at the supply outlet circuit of the print head.
Dependencies are inferred from the claim text.