Liquid Droplet Ejection Bubble Discharge Valve Mechanism
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Solution Overview
Problem
The existing liquid droplet ejection apparatuses face complexity in operating multiple valves for bubble discharge, leading to a complicated structure due to the need for one inserting body per valve, especially when dealing with multiple liquid supply flow passages for different ink colors.
Innovation Solution
A simplified structure that uses a single opening and closing section with multiple cover portions and a common contact portion to manage multiple discharge openings, reducing the number of pushing sections required for opening and closing the discharge openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one inserting body is provided for each valve to open and close discharge openings, then each discharge opening can be controlled independently, but the structure becomes complicated and the number of parts increases
Solution Approach 1:
Multiple inserting bodies are merged into a single integrated inserting body that can simultaneously control multiple discharge openings. The single inserting body includes multiple insertion portions that can be inserted into different discharge openings, eliminating the need for separate inserting bodies for each valve while maintaining independent control capability.
Solution Approach 2:
The single inserting body is designed with multi-functionality to perform the role of multiple inserting bodies. It includes multiple insertion portions that can selectively engage with different discharge openings, allowing one component to serve multiple functions that previously required separate components.
2Adaptability or versatility
If the number of inserting bodies is increased to match the number of liquid supply flow passages, then each passage can have dedicated bubble discharge control, but the operation structure becomes more complicated
Solution Approach 1:
The control structure is merged by providing a single inserting body that integrates multiple insertion portions, each capable of controlling a specific liquid supply flow passage. This reduces the number of operating components from multiple separate inserting bodies to one unified component, simplifying the operation structure while maintaining dedicated control for each passage.
Solution Approach 2:
The single inserting body is segmented into multiple insertion portions, where each portion can independently engage with a specific discharge opening corresponding to a particular liquid supply flow passage. This segmentation allows dedicated control for each passage while keeping the overall structure unified and simplified.
Data Source
AI summary
A liquid droplet ejection apparatus includes: a plurality of discharge openings for discharging bubbles in liquid supply flow passages supplying liquid from liquid chambers to a liquid droplet ejection head, for each of the liquid chambers; a first opening and closing section being capable of opening and closing the discharge openings; and a first pushing section causing the discharge openings to be opened and closed by moving the first opening and closing section. The first opening and closing section includes a plurality of first cover portions that can cover each of the discharge openings, a first contact portion corresponding to the first pushing section and common to the first cover portions, and a first connecting portion connecting the first cover portions with the first contact portion.