Inkjet head that circulates ink

摘要

An inkjet head that is able to circulate ink. The inkjet head includes a diaphragm plate, a first restrictor plate, one or more chamber plates, a second restrictor plate, and an orifice plate. The orifice plate forms a plurality of nozzles. The chamber plates form a plurality of chambers corresponding with the nozzles, and also form a return manifold for receiving ink from the chambers when circulating the ink through the inkjet head. The diaphragm plate forms a diaphragm that seals the chambers. The first restrictor plate controls a flow of ink between the chambers and the return manifold to circulate the ink through the inkjet head. The second restrictor plate controls the flow of ink between a supply manifold and the chambers.

主权项

1. An inkjet head comprising:
a stack of plates including:
a diaphragm plate;a first restrictor plate;chamber plates;a second restrictor plate; andan orifice plate that includes a plurality of nozzles; wherein the stack of plates forms a supply manifold, a plurality of chambers, and a return manifold; wherein first restrictors in the first restrictor plate fluidly connect the supply manifold to the chambers within the stack; wherein second restrictors in the second restrictor plate fluidly connect the chambers to the return manifold within the stack; wherein the supply manifold and the return manifold are aligned vertically in the stack with at least one of the chamber plates separating the supply manifold and the return manifold.