Movable Winding Core Structure for Stable Print Media Take-Up
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Solution Overview
Problem
The winding section in existing winding devices does not move in the shaft direction of the support shaft, leading to potential winding failures when the end of the print paper varies, causing strong contact with the flange and resulting in operational issues.
Innovation Solution
The winding section is designed with a movable winding core that can move along the support shaft, guided by a flange, and is rotated via engagement sections on a drive force transmission member, allowing for controlled winding without strong contact with the flange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the winding section is fixed on the support shaft, then the structure is simple and stable, but the winding operation fails when the end of the print paper varies due to strong contact with the flange
Solution Approach 1:
The winding section is designed to be movable in the shaft direction along the support shaft rather than fixed, allowing it to dynamically adjust its position. This dynamic capability enables the winding section to avoid strong contact with the flange when the end of the print paper varies, preventing winding failures while maintaining structural simplicity through linear movement along the shaft axis
2Reliability
If the winding section moves in the shaft direction, then winding failures are prevented, but the device complexity increases
Solution Approach 1:
The winding section is designed to be movable in the shaft direction along the support shaft rather than fixed, allowing it to dynamically adjust its position. This dynamic capability enables the winding section to avoid strong contact with the flange when the end of the print paper varies, preventing winding failures while maintaining structural simplicity through linear movement along the shaft axis
Solution Approach 2:
The drive force transmission member acts as an intermediary mechanism that transmits rotational motion from the printing device to the winding section. It includes engagement sections that connect to the flange, enabling controlled rotation and shaft-direction movement without requiring direct complex mechanisms between the printing device and winding section
3Quantity of substance
If the winding diameter increases, then more print medium can be wound, but the torque balance is disrupted causing winding failures
Solution Approach 1:
The movable winding section can adjust its position along the shaft direction in response to changing winding conditions. As the winding diameter increases and torque balance shifts, the winding section can move to compensate for the imbalance, maintaining reliable operation throughout the winding process and enabling increased print medium quantity without failure
Data Source
AI summary
A winding device includes a winding section that winds up a print medium discharged from a printing device, a support shaft that rotatably supports the winding section, and a drive force transmission member that transmits drive force for rotating the winding section from the printing device to the winding section, wherein the winding section has a winding core configured to wind up the print medium around a peripheral surface thereof and a flange configured to guide a winding position of the print medium when winding up the print medium around the winding core, the winding device is configured to rotate the winding core by engaging a first engagement section provided on the drive force transmission member with a second engagement section of the flange, and the winding core is configured to be movable in an shaft direction along the support shaft.