Continuous Adhesive Roller with Synchronized Bidirectional Web Advance
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Solution Overview
Problem
Existing surface cleaning devices with adhesive rollers have limitations, including limited use due to the need for frequent cleaning or replacement of adhesive material and inability to make multiple passes over a surface, as well as challenges in maintaining web tension and proper contact with the surface.
Innovation Solution
A continuous adhesive roller cleaning device with a supply and take-up roller system, featuring a biasing mechanism for tension control and a synchronization mechanism to ensure equal forces on both rollers, allowing for synchronized rotation and multiple passes in both directions, along with a removable cartridge design for easy replacement of adhesive material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single roller with adhesive material is used, then the device structure is simple, but the adhesive material must be continually cleaned or replaced due to limited use
Solution Approach 1:
The adhesive web is segmented into multiple sections by dividing it between a supply roller and a take-up roller. This allows the web to be advanced in discrete sections, enabling multiple passes before the entire web is consumed, thereby extending the duration of action while maintaining relatively simple device structure.
Solution Approach 2:
The system transitions from a static single roller to a dynamic two-roller system where the adhesive web can be advanced continuously or in steps. The synchronized rotation mechanism allows the web to move dynamically between rollers, extending usability duration while keeping the overall device complexity manageable.
2Duration of action of moving object
If a pair of rollers with continuous web advancement is used, then the adhesive material usability is extended, but the device cannot be moved continuously over a surface to pickup debris
Solution Approach 1:
The synchronization mechanism allows the supply and take-up rollers to rotate together in response to user manipulation, enabling the adhesive web to move dynamically. This dynamic capability allows the device to be moved continuously over surfaces while maintaining proper web tension and contact, resolving the conflict between extended usability and ease of operation.
Solution Approach 2:
The system changes the operational parameters by allowing bidirectional rotation and variable speed operation of the rollers. This enables the adhesive web to be advanced or repositioned as needed, providing both extended usability through continuous web advancement and ease of operation through flexible movement over surfaces.
3Duration of action of moving object
If the take-up roller has greater spring force than the supply roller, then the web can be advanced to provide clean sections, but the forces on the rollers are unequal during use
Solution Approach 1:
The system uses dynamic force balance through synchronized rotation. During normal operation, both rollers rotate together maintaining equal forces. When web advancement is needed, the synchronization is temporarily broken allowing the take-up roller's greater spring force to advance the web, then synchronization is restored. This dynamic approach enables both web advancement capability and force balance during use.
Solution Approach 2:
The system employs periodic action where the synchronized rotation is intermittently interrupted to allow web advancement. During most of the time, both rollers rotate together with equal forces. Periodically, the take-up roller advances the web using its greater spring force, then returns to synchronized operation. This periodic disruption enables web advancement while maintaining force balance during the majority of operation.
4Duration of action of moving object
If mechanisms for web advancement are added, then the adhesive material usability is extended, but mechanisms for controlling roller rotation and maintaining web tension increase device complexity
Solution Approach 1:
The synchronization mechanism merges the control of both rollers into a single integrated system. A belt connects the supply and take-up rollers, causing them to rotate together automatically without requiring separate control mechanisms. This merging approach extends adhesive material usability through coordinated roller operation while minimizing the increase in device complexity by using a simple belt connection rather than complex independent control systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and enhanced surface cleaning by maintaining web tension and allowing multiple passes over a surface, extending the life of the adhesive material and improving cleaning efficiency.
Implementation Method 1
One or both of the rollers includes a biasing mechanism that provides tension on a web of an adhesive material extending between the rollers
Implementation Method 2
the tackified surface contacts and adheres to the lint, dust and debris on the surface, thereby lifting the debris off of the surface and onto the roller
Data Source
AI summary
A device (20) for cleaning surfaces is provided utilizing a web (94) of a tackified sheet material movably secured between rollers (56, 58) on the device (20) that enable the web (94) to be moved over the surface in opposite directions. The device (20) includes a supply roller (56) and a take-up roller (58) secured to opposed ends of the web (94) of adhesive sheet material, with at least one roller (56, 58) including a biasing mechanism (82) disposed within the roller (56, 58). The web (94) can be engaged with the surface by passing over a number of idler rollers (98) positioned between the supply roller (56) and take-up roller (58). The biasing mechanism (82) is designed to bias the movement of the web (94) onto the take-up roller (58), such that the mechanism (82) can be selectively operated to advance the web (94) from the supply roller (56) to the take-up roller (58) to expose a clean section of the adhesive sheet material (94). A synchronization mechanism (41) is also connected between the rollers (56, 58) to enable the rollers (56, 58) to rotate in a synchronous manner, regardless of the amount of the web (94) that is positioned on the rollers (56, 58) to continually tension the web (94) a proper amount.