Conveying Device Sheet Stability Winding Variations
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Solution Overview
Problem
The stability of sheet conveyance in recording apparatuses is compromised due to variations in the winding amount of the sheet, leading to instability in sheet cutting.
Innovation Solution
A conveying device with a holding portion, a conveying portion, a winding portion, and a cutting portion, where a contact portion is integrated with the cutting portion to move between approaching and receding positions relative to the rolled sheet, stabilizing sheet conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the winding amount of the sheet increases, then the sheet is wound more completely, but the conveying state of the sheet varies and sheet cutting becomes unstable
Solution Approach 1:
The contact portion is configured to move between a first position approaching the rolled sheet and a second position away from the rolled sheet. This dynamic adjustment allows the contact portion to adapt to different winding amounts and maintain stable sheet conveying and cutting conditions regardless of the winding state, thereby resolving the contradiction between reliable cutting and consistent conveying.
2Reliability
If the contact portion is fixed, then the structure is simple, but the sheet conveying becomes unstable when winding amount varies
Solution Approach 1:
The contact portion is designed to move between approaching and receding positions relative to the rolled sheet. This dynamic configuration enables the contact portion to maintain optimal contact with the sheet during conveying and cutting operations, ensuring stability without requiring a complex overall structure.
3Reliability
If the contact portion moves to approach the rolled sheet, then sheet conveying is stabilized, but the device complexity increases
Solution Approach 1:
The contact portion is configured to move between a first position approaching the rolled sheet held by the holding portion and a second position away from the rolled sheet. This controlled movement allows the contact portion to stabilize the sheet during critical operations (conveying and cutting) while retracting when not needed, achieving reliability without excessive complexity.
Data Source
AI summary
A conveying device includes a conveying portion that conveys a sheet drawn out of a rolled sheet held by a holding portion; a winding portion that winds the sheet on a downstream side of the conveying portion; and a cutting portion that cuts the sheet between the conveying portion and the winding portion, wherein the conveying device includes a contact portion that contacts the sheet between the cutting portion and the winding portion, and the contact portion and the cutting portion are configured to be capable of integrally moving to a first position approaching the rolled sheet held by the holding portion and a second position away from the rolled sheet.