Liquid Application Control for Stronger Crimp Sheet Binding
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Solution Overview
Problem
Existing medium processing apparatuses face challenges in achieving sufficient binding strength for sheet bundles without using metal staples, particularly in crimp binding processes, where the number of sheets that can be bound effectively is limited.
Innovation Solution
A medium processing apparatus is equipped with a liquid application member, a movement mechanism, and a liquid-application sensor to control the speed of the liquid application member's movement, allowing for precise application of liquid to the sheets, followed by crimp binding using a crimper to enhance binding strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the liquid application member moves at a constant high speed to apply liquid to the sheet bundle, then productivity is improved, but the liquid application precision deteriorates
Solution Approach 1:
The liquid application member's movement speed is dynamically adjusted based on its position relative to the sheet bundle. The movement mechanism operates at a first (higher) speed when the liquid application member is far from the sheet bundle, and switches to a second (lower) speed when approaching the sheet bundle, allowing both high productivity and precise liquid application
Solution Approach 2:
The system performs preliminary positioning of the liquid application member at a predetermined position before actual liquid application. The movement mechanism pre-moves the liquid application member to the optimal position, then adjusts speed for precise liquid application, ensuring both efficiency and precision
Data Source
AI summary
A medium processing apparatus includes a liquid application member to contact a medium to apply liquid to the medium, a movement mechanism to move the liquid application member close to or away from the medium, and a liquid-application sensor to determine whether the liquid application member has passed through a detection area of the liquid-application sensor when the liquid application member is moved close to or away from the medium. When the liquid application member is moved close to the medium, the movement mechanism moves the liquid application member at a first speed to get close to the medium after the liquid application member has passed through the detection area, and moves the liquid application member at a second speed slower than the first speed to get close to the medium until the liquid application member passes through the detection area.