Wiper Blade Height Adjustment for Transport Belt Cleaning
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Solution Overview
Problem
Existing recording medium transport devices face challenges in maintaining consistent contact between blades and an endless belt, leading to issues with cleaning liquid distribution and efficiency.
Innovation Solution
A transport device featuring a wiper blade with a tip portion for contact with the belt's outer peripheral surface, a base end portion, a resin contact portion for supporting the base end, and a plurality of pressing units to adjust the base end's position, ensuring optimal contact and cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heights of the blades are adjusted to form no gap between the blades and the endless belt, then cleaning liquid removal is improved, but the complexity of adjusting individual blade heights increases
Solution Approach 1:
The blade support structure is divided into multiple independent pressing units, each capable of adjusting the height of individual blades. This segmentation allows localized height adjustment of each blade portion independently, enabling precise control over gap formation between blades and the endless belt while simplifying the overall adjustment process compared to adjusting the entire blade assembly as a single unit.
Solution Approach 2:
The blade heights are made dynamically adjustable through the pressing units that can apply variable pressing forces to each blade. This dynamic adjustment capability allows the blade heights to be modified during operation or maintenance to compensate for wear, deformation, or manufacturing variations, ensuring consistent contact with the endless belt without requiring complex fixed adjustment mechanisms.
2Stability of the object's composition
If the blades are made undulated to conform to belt surface variations, then contact consistency is improved, but gap formation increases at certain positions
Solution Approach 1:
Instead of making the entire blade undulated, the invention applies local adjustment capability to specific portions of the blade through individual pressing units. Each pressing unit can independently adjust the height of its corresponding blade portion, allowing the blade to conform locally to variations in the endless belt surface while maintaining controlled contact pressure throughout the blade length, preventing both excessive contact and gap formation.
Solution Approach 2:
The invention changes the height parameter of individual blade portions dynamically through the pressing units. By adjusting the pressing force applied by each pressing unit, the height of corresponding blade portions can be modified to compensate for undulations or variations in the endless belt surface, ensuring consistent contact without creating gaps at specific positions.
3Ease of manufacture
If the entire blade height is adjusted uniformly, then manufacturing is simplified, but individual blade portion precision is reduced
Solution Approach 1:
The blade adjustment system is segmented into multiple independent pressing units, each responsible for adjusting a specific portion of the blade. This segmentation allows uniform manufacturing of the blade itself while enabling precise individual adjustment of each blade portion during assembly or maintenance, achieving both manufacturing simplicity and adjustment precision.
Solution Approach 2:
The pressing units are pre-configured with adjustment mechanisms that allow individual blade portions to be adjusted before the blade is installed on the endless belt. This preliminary adjustment capability enables precise positioning of each blade portion to eliminate gaps while maintaining the simplicity of the overall blade manufacturing process.
Data Source
AI summary
A transport device includes a transporting belt including an outer peripheral surface where a medium is placeable, the transporting belt being configured to transport the medium, a wiper blade including a tip portion configured to come into contact with the outer peripheral surface, and a base end portion located on an opposite side of the tip portion in an intersecting direction intersecting with the outer peripheral surface, the wiper blade being configured to wipe the outer peripheral surface, a contact portion made of resin and configured to support the base end portion by coming into contact with the base end portion, and a plurality of pressing units provided side by side in a width direction of the transporting belt, the plurality of pressing units being configured to press the base end portion via the contact portion.