Ink-jet Head Filter Plate Bonding via Adhesive Segmentation
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Solution Overview
Problem
The existing ink-jet head technologies face challenges in bonding a filter plate sandwiched between two metal plates of different materials, leading to potential separation under external forces due to inadequate adhesive strength, which can increase the size of the ink-jet head when reinforcing the joint area.
Innovation Solution
A layered structure is implemented where the filter plate is sandwiched between two metal plates, with the adhesive disposed between the plates rather than on the filter plate, ensuring firm bonding between the metal plates even if adhesion to the filter plate is weak.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the filter plate is bonded to the head unit with different materials using an adhesive, then the bonding structure can be formed, but the adhesion strength may be insufficient and cannot endure external force
Solution Approach 1:
The bonding structure is divided into two distinct bonding regions: a first bonding region that bonds the filter plate to the head unit, and a second bonding region that bonds the joint member to the head unit. This segmentation allows each bonding region to be optimized independently for its specific material combination and functional requirements.
Solution Approach 2:
Different adhesives are used in different bonding regions based on local material compatibility requirements. The first adhesive is selected for optimal bonding between the filter plate and head unit, while the second adhesive is selected for optimal bonding between the joint member and head unit, ensuring each local area has the appropriate bonding properties.
2Strength
If another member is used to reinforce the joint area, then the bonding strength is improved, but the size of the ink-jet head increases
Solution Approach 1:
The joint member is designed with an integrated structure that combines multiple functions: it provides structural support for the filter plate, contains ink passages for ink flow, and serves as a bonding interface with the head unit. This merging of functions eliminates the need for separate reinforcing members, maintaining compact size while ensuring adequate bonding strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances the stability of the ink-jet head by preventing separation of the metal plates and maintains the filter plate's functionality without increasing the overall size, ensuring reliable ink flow and nozzle operation.
Implementation Method 1
The first and second metal plates are bonded to each other by means of an adhesive that is disposed between the first and second metal plates
Implementation Method 2
a filter plate having a filter through which liquid is filtered
Data Source
AI summary
A layered structure has a first metal plate having a first hole, a second metal plate having a second hole designed to communicate with the first hole, and a filter plate at least a surface of which is made of a metal. The filter plate is sandwiched between the first and second metal plates so that the first hole and the second hole communicate with each other through the filter. The first and second metal plates are bonded to each other by means of an adhesive that is disposed between the first and second metal plates. The adhesive is not opposed to the filter plate.