Adjustable Cutter Support for Variable Printing Medium Residue
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Solution Overview
Problem
Conventional printing apparatuses lack a configuration for detecting printed materials with variable cutting residue sizes, leading to inefficiencies in cutting and error detection during the printing process.
Innovation Solution
A printing apparatus with a movable cutter unit and a detector system that adjusts the cutting position and residue amount, featuring a first and second blade for cutting, a transport unit, and a control unit to manage the cutting and detection process, ensuring accurate detection of the printing medium even with varying residue sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cutter support position is fixed, then the structure is simple, but the cutting residue amount cannot be adjusted to meet different usage requirements
Solution Approach 1:
The cutter support is designed to be movable along the transport direction rather than fixed, allowing dynamic adjustment of the cutting position. This enables the cutting residue amount to be changed by simply repositioning the cutter support to different locations along the transport path, providing adaptability without requiring complex mechanisms.
Solution Approach 2:
The adjustment mechanism is segmented into discrete positioning locations along the transport direction. The cutter support can be positioned at multiple predetermined locations, each corresponding to a specific cutting residue amount. This segmentation allows for simple adjustment while maintaining structural integrity.
2Measurement precision
If the detector is positioned far from the cutting blade, then detection is more reliable, but the detection timing is delayed and cannot accurately reflect the actual cutting state
Solution Approach 1:
Since the cutter support and detector are positioned together on the same movable support structure, when the cutter support is repositioned to adjust cutting residue, the detector's position relative to the cutting blade automatically adjusts accordingly. This dynamic coupling ensures the detector remains at an optimal distance for both reliable detection and timely feedback without requiring separate adjustment mechanisms.
3Adaptability or versatility
If a fixed detector position is used, then the device structure is simple, but it cannot adapt to different cutting residue requirements
Solution Approach 1:
The detector is merged with the cutter support structure, forming an integrated assembly. This means that when the cutter support is repositioned to adjust cutting residue, the detector moves together with it, maintaining its detection function while adapting to different cutting configurations. This merging eliminates the need for separate detector positioning mechanisms, achieving adaptability without proportional increases in complexity.
Data Source
AI summary
A printing apparatus including: a printing apparatus main body, a main body of a cutter unit, an attachment position thereof with respect to the printing apparatus main body being changeable, a fixed blade, a movable blade configured to mesh with the fixed blade to cut a printing medium, and a pickup sensor configured to detect a printing medium, in which the movable blade and the pickup sensor are supported on the main body, and with a change of an attachment position of the cutter support, an amount of a remaining portion of the printing medium after being cut by the movable blade changes.