Adjustable Rail Mechanism for Wide-Format Printer Carriage Stability
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Solution Overview
Problem
Wide-format inkjet printing apparatuses face challenges in achieving higher image quality and mass-production performance due to posture variation of the carriage and inability to minimize the distance between the print head and platen, leading to ink landing accuracy issues.
Innovation Solution
The apparatus incorporates multiple rail support base adjusting mechanisms and rail adjusting mechanisms to finely adjust the positions of the main and sub rails, ensuring alignment with the platen's curvature, thereby reducing posture variation and minimizing the print head to platen distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the rail is adjusted to form a straight line to suppress carriage posture variation, then carriage posture stability is improved, but the distance between print head and platen cannot be reduced to minimum narrowness
Solution Approach 1:
The patent applies dynamics by making the rail adjustable rather than fixed. The rail adjusting mechanisms allow the rail shape to be dynamically modified to match the platen's curvature, enabling the system to adapt between straight-line guidance and curved alignment as needed to achieve both posture stability and minimum HP distance.
Solution Approach 2:
The patent changes the geometric parameters of the rail by providing adjusting mechanisms that can modify the rail's shape and position. This allows the rail to be adjusted from a straight configuration to a curved configuration that matches the platen, thereby resolving the contradiction between posture stability and minimum distance.
2Manufacturing precision
If multiple rail adjusting mechanisms are added to achieve precise alignment, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the rail adjusting function into multiple independent adjusting mechanisms positioned at different locations along the rail. Each mechanism handles a specific portion of the alignment task, allowing modular adjustment and distributing the complexity across multiple simple units rather than requiring one complex system.
Data Source
AI summary
A wide-format printing apparatus can suppress a posture variation of a carriage to improve landing accuracy of ink, and can reduce an HP (head to platen) distance to the minimum gap, thus achieving higher image quality and mass-production performance. The HP distance, the main rail and the sub rail are adjustable, and the curve amount of both rails is made to be in agreement with the curve amount of the platen. After that, the adjustment for minimizing the local deformation of both rails is performed.