Liquid Discharge Device for Paper Dust Scraping and Containment
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Solution Overview
Problem
Paper dust adhering to a transport belt in a liquid discharge device can cause operation failures in mechanisms located below the belt due to the dust falling and accumulating.
Innovation Solution
A liquid discharge device with a support unit, a liquid discharge unit, and a moving unit that includes a scraping member to remove paper dust accumulated below the support unit, accompanied by an accommodating unit to collect the scraped dust, preventing its diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a blade is provided to scrape off paper dust from the transport belt, then paper dust removal is improved, but paper dust falls below the transport belt and causes operation failures in mechanisms located below
Solution Approach 1:
A container is introduced as an intermediary component between the blade and the mechanisms below. The container intercepts the paper dust scraped off by the blade before it can fall to the mechanisms, preventing operational failures while maintaining effective dust removal
Solution Approach 2:
The harmful paper dust is extracted from the transport belt by the blade and collected in the container, separating the dust removal function from the mechanism operation space. This extraction prevents the dust from causing failures in mechanisms located below the transport belt
2Productivity
If the transport belt moves to support and retreat positions, then medium transport is improved, but paper dust accumulates below the support unit and causes operation failures
Solution Approach 1:
The blade is positioned to perform preliminary scraping action on the transport belt during its movement between support and retreat positions. This preliminary dust removal prevents accumulation below the support unit while maintaining transport efficiency
Solution Approach 2:
The container serves as an intermediary that captures paper dust during the transport cycle, preventing it from falling to mechanisms below while allowing the transport belt to continue its support and retreat movements
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
The solution effectively prevents operation failures by removing and containing paper dust, ensuring the device's smooth operation and maintenance.
Implementation Method 1
a scraping member configured to scrape off paper dust accumulated below the support unit
Data Source
AI summary
A liquid discharge device includes a support unit configured to support a medium, a liquid discharge unit configured to discharge liquid in a discharge direction from a nozzle provided at a nozzle surface onto the medium supported by the support unit, and a moving unit configured to move in a first direction that is a direction intersecting the discharge direction and in a second direction that is a direction opposite to the first direction. The moving unit includes a scraping member configured to scrape off paper dust accumulated below the support unit.