Sheet Supply Device Guide Roller Dynamics
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Solution Overview
Problem
Existing sheet supply devices face precision issues in separating sheets from rolls due to variations in roll diameters, affecting the consistency of the sheet separating operation.
Innovation Solution
A sheet supply device with a moving unit that supports a pressing roller and guide roller, allowing them to approach and retract together, maintaining a constant separating angle regardless of roll diameter differences, ensuring precise sheet separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the guide roller is fixed to the guide post, then the structure is simple, but the separating angle changes when the roll diameter varies, affecting sheet separation precision
Solution Approach 1:
The guide roller is made movable relative to the pressing roller through a guide post, allowing it to dynamically adjust its position. This dynamic configuration enables the guide roller to move radially outward when the roll diameter increases, thereby maintaining a constant separating angle and consistent sheet separation precision despite diameter variations.
2Adaptability or versatility
If the separating angle is changed according to roll diameter differences, then the structure adapts to different diameters, but the sheet separation precision becomes inconsistent
Solution Approach 1:
The invention changes the positional parameter of the guide roller dynamically. By allowing the guide roller to move radially outward as the roll diameter increases, the system maintains a constant separating angle parameter, thereby ensuring consistent sheet separation precision across different roll diameters.
3Manufacturing precision
If the guide roller is moved radially outward with increasing roll diameter, then the separating angle remains constant, but the device complexity increases
Solution Approach 1:
The guide post serves as an intermediary mechanism between the pressing roller and the guide roller. It provides a guided radial movement path for the guide roller, enabling the necessary positional adjustment while maintaining structural simplicity and avoiding complex positioning mechanisms.
Data Source
AI summary
A sheet supply device and a sheet supply method include a guide roller disposed at an opposite side of a standby side roll with respect to a tangential line to an outer peripheral surface of the standby side roll at a pressing position in a state in which a pressing roller is pressed against a pressing position, and configured to guide a sheet from the pressing roller in a direction away from the standby side roll. Furthermore, the second guide roller is fixed to a moving unit so as to be configured to approach and move away from the standby side roll together with the pressing roller.