Inkjet Head Module Holder Assembly Side Pressing Mechanism
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Solution Overview
Problem
Conventional inkjet head module mounting systems face challenges in securely attaching the module to a mounting table without an upper opening, as the space is occupied by ink flow path members, making screw tightening difficult due to limited space and poor workability.
Innovation Solution
A holder assembly with a pressure member and an operation member that transitions from a first state to a second state to press the inkjet head module against the mounting table, allowing for secure attachment without the need for an upper opening, using a coil spring and lever mechanism to apply elastic pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw tightening work is performed in a work space with an upper opening to securely mount the inkjet head module, then the module can be firmly attached to the mounting table, but the space above the mounting table is occupied by ink flow path members, making screw tightening difficult due to limited space and poor workability
Solution Approach 1:
The patent introduces a holder assembly that operates from a different spatial dimension - specifically from the side of the mounting table rather than from above. The holder assembly includes a pressing member that extends along the side surface of the mounting table, allowing screw tightening to be performed from the side dimension, thereby avoiding the conflict with the ink flow path members positioned above the mounting table.
Solution Approach 2:
The holder assembly acts as an intermediary mechanism between the screw and the inkjet head module. It includes a pressing member that contacts the side surface of the mounting table and a support member that contacts the bottom surface of the inkjet head module, facilitating secure attachment without requiring direct access from above for screw tightening.
2Reliability
If the inkjet head module is firmly fixed to the mounting table by screws, then the module is securely attached, but thermal expansion of the exterior due to heated ink causes expansion and contraction that cannot be avoided
Solution Approach 1:
The patent employs a dynamic pressing mechanism where the pressing member can move along the side surface of the mounting table. This dynamic structure allows the holder assembly to adapt to thermal expansion and contraction of the inkjet head module exterior, maintaining secure attachment while accommodating dimensional changes through the movable pressing member.
Solution Approach 2:
The holder assembly utilizes changes in the position parameter of the pressing member along the side surface of the mounting table to accommodate thermal expansion. As the exterior of the inkjet head module expands or contracts due to thermal effects, the pressing member can adjust its position to maintain optimal pressing force and secure attachment.
3Stability of the object's composition
If a pressure member with coil spring and washer is used to hold the inkjet head module, then thermal expansion can be absorbed, but screw tightening work becomes difficult in confined spaces without upper opening
Solution Approach 1:
The patent repositions the screw tightening operation from the vertical dimension (from above) to the horizontal dimension (from the side). The holder assembly includes a pressing member that extends along the side surface of the mounting table, allowing the screw to be tightened from the side dimension, thereby providing adequate workspace for screw tightening while maintaining the pressure member structure for thermal expansion absorption.
Solution Approach 2:
The holder assembly is segmented into distinct functional components: a pressing member for applying pressure along the side surface, a support member for supporting the inkjet head module, and a coil spring mechanism for absorbing thermal expansion. This segmentation allows each component to perform its specific function independently, with the pressing member providing access for screw tightening from the side.
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
Enables easy attachment and detachment of inkjet head modules, improving maintenance accessibility and print quality by stabilizing the module's orientation despite thermal expansion, without requiring screw tightening in confined spaces.
Implementation Method 1
a pressure member and an operation member. The pressure member presses a portion of the head module adjacent to the mounting table
Data Source
AI summary
A holder assembly that holds a head module including an inkjet head on a mounting table, the holder assembly including a pressure member and an operation member. The pressure member presses a portion of the head module adjacent to the mounting table. The operation member transitions the pressure member from a first state to a second state when work of mounting the head module on the mounting table is performed. In the first state, the pressing by the pressure member is deactivated, and in the second state, the pressing by the pressure member is activated. The operation member exists outside an enveloping surface of the head module during the work of mounting the head module on the mounting table.