Liquid ejecting head
By setting alignment marks on the diaphragm of the liquid ejection head and using optical detection technology for precision alignment, the position accuracy problem between the diaphragm and the actuator is solved, and the driving efficiency and printing accuracy of the inkjet head are improved.
CN119636255APending Publication Date: 2025-03-18IDEAL SCI & TECH CO LTD
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Patent Information
- Application Number
- CN202410641036.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-08
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-18
AI Technical Summary
Technical Problem
The existing liquid ejection head has accuracy problems in the alignment of the vibration plate and the actuator, which affects the high-precision printing of the inkjet head.
Method used
By providing alignment marks on the diaphragm of the liquid ejection head and aligning with the pillar elements of the actuator component, precise alignment is performed using optical detection technology to ensure a high-precision fit between the actuator and the diaphragm.
Benefits of technology
The position accuracy of the vibration plate and the actuator is improved, the driving efficiency and printing accuracy of the liquid ejection head are enhanced, and the alignment accuracy of the traditional inkjet head is solved.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a liquid ejection head capable of improving positional accuracy of a diaphragm and an actuator. According to one embodiment, a liquid ejection head includes: a flow path member including a vibration plate and a liquid flow path including a plurality of pressure chambers; a piezoelectric member disposed opposite to the vibrating plate and including a driving element for generating pressure in the pressure chamber; and a nozzle plate that is disposed on the opposite side of the flow path member from the vibration plate, and that has a plurality of nozzles that eject liquid droplets. The piezoelectric member includes: a plurality of driving elements disposed in a first region facing a pressure region in which the pressure chamber is disposed; and a plurality of strut elements disposed in a second region outside the first region. The vibrating plate is provided with an alignment portion having one or more alignment marks at a position facing the second region of the piezoelectric member.
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