Universal Roll Dispenser With Self-Feeding Split Housing
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Solution Overview
Problem
Existing rolled product dispensers are limited by their ability to accommodate only specific types of rolls, particularly requiring precise fitting for cored rolls and necessitating meticulous feeding of coreless rolls, which can lead to stoppages and product waste during roll changes.
Innovation Solution
A universal rolled product dispenser design featuring a split housing with a single-ended mounting stem and separable rollers, allowing easy loading of both cored and coreless rolls without the need for manual feeding, and incorporating a simple, automatic feeding mechanism that adapts to various roll sizes and orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dispenser is designed to accommodate specific types of rolls with precise fitting, then the reliability of roll mounting is improved, but the adaptability to various roll types deteriorates
Solution Approach 1:
The mounting stem is designed with a universal geometry that can accommodate both cored and coreless rolls. The stem features a rounded end that fits into the center of any roll type, while the flat top surface provides a consistent interface for the roller assembly. This single mounting structure replaces multiple specialized mounts, enabling the dispenser to reliably handle various roll types without requiring precise fitting for each specific type.
2Ease of manufacture
If a dispenser requires meticulous manual feeding of coreless rolls, then the manufacturing precision of the feeding mechanism is reduced, but the reliability of continuous operation deteriorates due to stoppages
Solution Approach 1:
The roller assembly is designed to self-align and self-feed rolls during the loading process. When the roll is placed on the mounting stem, the rollers automatically engage with the roll material and guide it into the dispensing mechanism without requiring manual feeding operations. This self-feeding action eliminates the need for complex manual feeding procedures while ensuring reliable continuous operation by preventing stoppages during roll changes.
3Device complexity
If a dispenser uses fixed guide and fixedly mounted rollers, then the device complexity is reduced, but the adaptability to various roll sizes deteriorates
Solution Approach 1:
The roller assembly incorporates movable and adjustable components that allow the feeding mechanism to adapt to various roll sizes. The rollers can be positioned at different locations along the mounting stem, and their pressure and angle can be adjusted to accommodate different roll diameters and material types. This dynamic configuration maintains relatively simple device structure while providing versatility for handling different roll sizes.
Data Source
AI summary
A rolled sheet dispenser (100) includes a first housing member (601) that is hingedly coupled to a second housing member (602). A pair of feed rollers (501,502) are disposed within the rolled sheet dispenser (100), with one of the feed rollers (501) disposed within the first housing member (601) and the other feed roller (502) disposed within the second housing member (602). A mounting stem (503), which is capable of accommodating both cored and coreless paper rolls of different widths, is disposed within one of the housings. When the first housing member (601) is pivoted to a closed position, the feed rollers (501,502) abut. When the first housing member (601) and the second housing member (602) are pivoted to an open position, the feed rollers (501,502) separate. Also, an end (608) of the mounting stem (503) becomes exposed and accessible.