Print Roll Adapter Mechanism for Eccentric Movement Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing printing apparatuses face challenges in supporting rolls with varying inner diameters of shaft center holes, leading to eccentric movement and poor conveyance of print media, which cannot be addressed by simply reducing the diameter of the support parts.
Innovation Solution
A detachable attachment system for printing apparatuses, comprising a housing with a box-like structure and a rotatable support mechanism, including a torque limiter and torsion spring, to accommodate rolls of diverse sizes and prevent loosening during reverse conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the diameter of the support part is reduced to accommodate smaller shaft center holes, then the attachment can support more roll types, but the roll may move eccentrically causing poor conveyance
Solution Approach 1:
An adapter mechanism is introduced as an intermediary component between the support part and the roll. The adapter includes a outer diameter that fits the support part and an inner diameter that matches the shaft center hole of the roll, allowing compatible support for rolls with varying shaft center hole sizes while maintaining proper alignment and conveyance quality
Solution Approach 2:
The support system uses adjustable parameters through the adapter mechanism, where the adapter's dimensions can be changed or selected to match different roll specifications. This allows the same support part to accommodate various roll types by changing the adapter parameters rather than changing the fundamental support structure
2Device complexity
If a fixed support part design is used, then the structure is simple, but rolls with different shaft center hole sizes cannot be properly supported
Solution Approach 1:
The support system is segmented into multiple independent components: a fixed support part and a removable adapter. This segmentation allows the simple fixed support part to remain unchanged while the adapter provides the necessary adaptability for different roll types, separating the structural simplicity from the functional versatility
Solution Approach 2:
The adapter serves as a universal interface that can be configured for different roll types while working with the same support part. This multi-functionality allows a single support part design to handle multiple roll specifications through the use of different adapters or adjustable adapter configurations
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
Enables secure mounting and stable conveyance of rolls with different diameters, preventing positional misalignment and loosening issues, ensuring consistent printing performance.
Implementation Method 1
a torque limiter and torsion spring
Data Source
AI summary
An attachment capable of being attached, in a detachable manner, to an accommodation part of a printing apparatus which is for accommodating a print medium, the attachment being configured to support a roll including the print medium which is wound, the attachment including: a housing having a substantially box shape of which an upper part is opened, the housing being configured to accommodate the roll inside thereof in a replaceable manner; an engaging part provided to the housing and configured to engage, in a disengageable manner, to an engaged part provided to the accommodation part when the housing is attached to the accommodation part; and a support part provided to the housing and configured to rotatably support the roll.