Brush Roller Adhesive Pasting for Irregular Surfaces
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Solution Overview
Problem
Conventional methods fail to apply adhesive sheets tightly to steel plates with curves or irregularities due to the thickness of resin sheets and the biased contact of cylindrical rollers, leading to uneven application.
Innovation Solution
A brush roller with adjustable speed and tilting mechanism is used to apply adhesive sheets, with brush bristles bending to follow the surface shape, ensuring uniform pressure and accurate attachment to irregular surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a cylindrical or columnar roller is used to paste the adhesive sheet, then the pasting process is simple and efficient, but the roller makes contact in a biased way at irregular parts, causing the adhesive sheet to cannot be applied tight to the outer plate
Solution Approach 1:
The patent replaces the rigid cylindrical roller with a flexible brush roller whose bristles can bend and conform to irregular surfaces. The brush roller comprises multiple brush bristles arranged in rows that flexibly contact the adhesive sheet, allowing uniform pressure distribution across curved or irregular surfaces while maintaining efficient pasting operation.
Solution Approach 2:
The patent changes the physical state and properties of the pressing surface from rigid to flexible by using brush bristles with specific material properties. The brush roller's bristles are made of elastic material that can deform under pressure, changing the contact parameters from point contact to distributed line contact, thereby achieving uniform pressure on irregular surfaces.
2Manufacturing precision
If a brush roller is used to apply uniform pressure on irregular surfaces, then the adhesive sheet can be applied tight, but the brush roller needs to stop rotation to maintain uniform pressure
Solution Approach 1:
The patent makes the brush roller rotatable rather than stationary, allowing it to dynamically adapt to surface irregularities through rotation. The brush bristles flex and recover during rotation, automatically compensating for surface variations without requiring the roller to stop, thus maintaining both uniform pressure application and continuous operation.
Solution Approach 2:
The brush roller is designed to self-adjust to surface irregularities through its own rotation and the elastic deformation of brush bristles. The system uses the rotational motion itself to distribute pressure uniformly across the adhesive sheet, eliminating the need for external control mechanisms or stopping to adjust pressure distribution.
3Strength
If the adhesive sheet is thicker than ordinary adhesive tape, then it provides better reinforcement and vibration suppression, but it cannot be applied tight to curved surfaces with conventional rollers
Solution Approach 1:
The flexible brush roller with compliant bristles can effectively press thick adhesive sheets onto curved surfaces, allowing the thicker material to conform to complex geometries while maintaining secure bonding. The brush bristles compress the thicker adhesive sheet uniformly across the surface, achieving both strong attachment and surface conformity.
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 adhesive sheet is applied with high accuracy and uniform pressure to curved or irregular surfaces without stopping the roller, ensuring reliable attachment and consistent contact.
Implementation Method 1
the brush bristles of the brush roller press on the adhesive sheet while bending to follow the shape of the surface of the work
Implementation Method 2
the rotating speed of the brush roller is adjusted to be faster than a relative moving speed of the work and the brush roller
Data Source
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AI summary
A pasting roller has brush bristles planted in a surface thereof in straight lines or spirally to form a plurality of rows at predetermined intervals on the roller surface. An adhesive sheet S is pasted to work while moving the pasting roller and the work, which is the recipient, relative to and crossing each other. In this pasting process, a rotating speed of the pasting roller is adjusted according to a surface configuration of the work to render the pressure on the adhesive sheet constant.