A mems print head package

Abstract

The invention relates to an MEMS (micro-electromechanical system) printing head package and aims to solve technical problems of difficulty in evaluation of driving effects of a micro driving unit anddifficulty in observation and wiping of ink droplets at a nozzle due to complete wrapping of a printing head chip in an existing printing head package. The printing head package comprises a nozzle plate, a vibrating plate, an ink supply transition layer and a printed circuit board sequentially from bottom to top. The lower surface of the nozzle plate is completely exposed, the printed circuit board is suspended above the vibrating plate by the aid of the ink supply transition layer, and the printed circuit board is provided with openings corresponding to an ink supply pipe hole and the micro driving unit to enable an external ink supply pipe to penetrate the printed circuit board to connect with the ink supply pipe hole and expose the micro driving unit. The printing head package is convenient for a laser vibration detector to detect vibration of the micro driving unit in a vibrating process, and suspension ink and residual ink around the nozzle in a printing head ink jet process can be wiped conveniently.

Description

technical field [0001] The invention relates to a print head package, in particular to a MEMS print head package. Background technique [0002] 3D printing technology, also known as additive manufacturing technology and rapid prototyping manufacturing technology, manufactures solid parts through CAD design data and the method of layer-by-layer accumulation of materials. Compared with traditional manufacturing methods, parts of any complex shape can be quickly and accurately manufactured on one device. According to the principle, 3D printing technology can be divided into photocuring molding, laser selective sintering, laser selective melting, electron beam melting and three-dimensional printing technology. [0003] Whether it is an inkjet printhead for 2D printing or an inkjet printhead for 3D printing applications, the principle of the printhead is basically the same, and it is divided into a thermally driven inkjet printhead and a piezoelectric inkjet printhead. [0004]...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems that the print head chip in the existing print head package is completely wrapped, it is difficult to evaluate the driving effect of the micro-drive unit, and the ink droplets at the nozzle are difficult to erase and observe. The present invention provides a MEMS print head package.

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