Roll Paper Supply Device Side Pressure Plate Dynamics
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing roll paper supply mechanisms in printers face issues with stable side pressure when the paper roll diameter decreases, leading to paper roll bouncing and skewing, complicating loading and smooth paper supply.
Innovation Solution
A roll paper supply device with a side pressure plate that contacts one side of the paper roll when closed and moves away when opened, combined with inclined side pressure plates and a tension mechanism, ensures stable support and easy loading/unloading of roll paper, preventing bouncing and skewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a drop-in loading type roll paper compartment is used, then paper loading is simplified, but stable side pressure cannot be applied when the paper roll diameter is small
Solution Approach 1:
The side pressure plate is designed to be movable rather than fixed. When the cover is closed, the side pressure plate moves to contact the paper roll and apply side pressure. When the cover is opened, the side pressure plate moves away to facilitate easy paper loading. This dynamic positioning resolves the contradiction between maintaining stable side pressure and enabling easy loading.
Solution Approach 2:
The side pressure plate is positioned in advance to contact the paper roll before the paper supply operation begins. This preliminary contact ensures that side pressure is applied from the start, preventing paper roll bouncing and skewing during the supply process.
2Quantity of substance
If the paper roll diameter is reduced, then paper storage capacity is increased, but the paper roll starts rolling along the urging surface and separates from it
Solution Approach 1:
The side pressure plate applies localized side pressure to the paper roll at a specific position. This localized pressure prevents the paper roll from rolling along the urging surface and separating from it, even when the paper roll diameter is reduced and storage capacity is increased.
3Productivity
If the paper roll is pulled off and supplied, then paper supply function is achieved, but the paper roll bounces around inside the compartment
Solution Approach 1:
The side pressure plate is positioned to contact the paper roll before the paper supply operation begins. This preliminary contact stabilizes the paper roll in place, preventing it from bouncing around inside the compartment during the paper supply process.
4Manufacturing precision
If the paper roll is supplied smoothly, then paper supply precision is improved, but complex positioning is required during loading
Solution Approach 1:
The side pressure plate is designed to be movable, automatically positioning itself to contact the paper roll when the cover is closed. This dynamic positioning simplifies the loading process while ensuring smooth and precise paper supply, eliminating the need for complex manual positioning during loading.
Data Source
AI summary
A roll paper supply device has a roll paper compartment that stores roll paper with the axis of rotation transverse so that the roll paper can roll there inside; supply rollers that feed the roll paper from the roll paper compartment in a sheet; a roll paper cover that opens and closes the roll paper compartment; and a side pressure plate that contacts one side of the roll paper when the access cover is closed, and displaces away from the side of the roll paper when the access cover opens.