Array ink jet head

Abstract

The invention discloses an array ink jet head which comprises a flow guide plate layer, a piezoelectric pipe array layer and a nozzle plate layer connected sequentially. The flow guide plate layer isprovided with a plurality of drainage channels, the flow guide plate layer is provided with an electrode, the piezoelectric pipe array layer comprises a plurality of piezoelectric pipes, the connectedpiezoelectric pipes are arranged in an array, each piezoelectric pipe is made from a piezoelectric ceramic material, the electrode can transfer a piezoelectric signal to the inner and outer walls ofeach piezoelectric pipe, the nozzle plate layer comprises a plurality of jet channels, the drainage channels and the jet channels are consistent to the piezoelectric pipes in quantity, and each piezoelectric pipe is provided with the drainage channel and the jet channel aligned to the piezoelectric pipe. According to the array ink jet head, the piezoelectric pipes are integrated in the array to improve the arranging density of the nozzles, so that the ink-jet printing resolution is improved, and meanwhile, the piezoelectric pipes work simultaneously, so that the ink-jet printing efficiency isimproved.

Description

technical field [0001] The invention relates to the technical field of inkjet printing, in particular to an array type inkjet head. Background technique [0002] Inkjet printing is the power of the nozzle to form an ejector through thermal or piezoelectric ceramic deformation to eject liquid droplets to the surface of the support, and inkjet ejects small black or colored ink droplets to the paper surface. Inkjet jets tiny black or colored ink droplets onto the paper. Most inkjet printers can output medium to high resolution images by using more nozzles and spraying the same area multiple times. Depending on the make and model of printer, an inkjet printer may jet cold or hot ink (hot ink dries faster), or heat waxy pigments (solid ink) until they liquefy and then jet them out. When printing, the nozzle keeps a certain distance from the surface of the support, so it is also called non-contact printing. Therefore, inkjet printing has requirements for the distance between the...

AI Technical Summary

Problems solved by technology

[0003] The existing inkjet printing mostly adopts the single-point inkjet method, which has a complex structure. It relies on the contraction of the piezoelectric tube to squeeze the inner glass tube to achieve the purpose of inkjet, resulting in a large volume of the inkjet head, which makes it difficult to achieve high-precision printing. Requirements; at the same time, the accuracy of the nozzle determines the smallest ink droplet. The realization of large ink droplets is formed by spraying and accumulating multiple times within a period of time, and there is a demand for large ink droplets in printing.

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