Continuous Adhesive Roller With Synchronized Web Tension
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Solution Overview
Problem
Existing surface cleaning devices with adhesive rollers have limited usability due to the need for frequent cleaning or replacement of adhesive material and inability to make multiple passes over a surface, as well as issues with 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 sheets.
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 divided into multiple sections between the supply roller and take-up roller, allowing the device to utilize multiple clean sections sequentially. When one section becomes contaminated, the web can be advanced to present a fresh section, extending the overall duration of action without requiring complete replacement of the adhesive material.
Solution Approach 2:
The contaminated sections of the adhesive web are transferred from the supply roller to the take-up roller, effectively discarding the used portion while recovering and storing it separately. This allows continuous operation with fresh adhesive sections while the used sections are accumulated on the take-up roller for later disposal.
2Duration of action of moving object
If a pair of rollers with continuous web is used, then the adhesive sheet can be advanced to provide sequential clean sections, but the device cannot be moved continuously over a surface to pickup debris
Solution Approach 1:
The system employs dynamic control of the rollers through independent braking mechanisms that can be selectively applied or released. During continuous surface cleaning, both rollers rotate freely without braking. When web advancement is needed, the braking mechanism is applied to the supply roller while the take-up roller continues rotating, creating the tension differential needed to advance the web. This dynamic control enables both continuous cleaning operation and web advancement capability.
3Duration of action of moving object
If mechanisms for web advancement are added, then clean sections of adhesive can be presented, but the mechanisms only allow advancement in one direction, preventing multiple passes over a surface
Solution Approach 1:
The braking mechanisms are designed to be selectively applied to either the supply roller or the take-up roller, or to both simultaneously. This dynamic control allows the system to advance the web in either direction by applying brakes to the appropriate roller while the other rotates freely. The user can apply the device to a surface, advance the web, reverse direction, and continue cleaning, enabling multiple passes over the same or different surfaces while maintaining web tension and control.
4Duration of action of moving object
If the web is advanced from supply roller to take-up roller, then a clean section is provided, but the changing amounts of web on each roller cause changing rotational speeds that require synchronization control
Solution Approach 1:
The synchronization mechanism incorporates feedback from the rotational positions and speeds of both rollers to automatically adjust their operation. Sensors detect the rotational state of each roller and provide feedback to a control system that modulates the braking force or drive torque to maintain synchronized rotation despite changing web amounts. This feedback control eliminates the need for complex mechanical synchronization while ensuring proper web tension and preventing web slack or breakage.
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
The device provides enhanced cleaning efficiency by maintaining web tension and allowing multiple passes over a surface, extending the life of the adhesive material and ensuring continuous cleaning without the need for frequent replacements.
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
A braking mechanism is engaged with one of the rollers in order to create generally equal forces acting on the supply roller and the take-up roller
Implementation Method 3
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 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.