Laser-Cut Paper Cleaning Roller for Burn Mark Removal
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Solution Overview
Problem
Laser cutting of paper results in burn marks and residue, which are difficult to completely eliminate using existing methods, affecting the aesthetic appearance of cut paper, especially on glossy or coated surfaces.
Innovation Solution
A system comprising a cleaning element with a resilient compressible material, a liquid source, and a squeezing roller, which rotates to absorb and remove liquid, effectively cleaning the substrate without damaging it by engaging the paper surface and counter element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If laser cutting is used to process paper substrates, then cutting efficiency and precision are improved, but burn marks and residue are generated on the cut surface
Solution Approach 1:
The patent utilizes the heat generated by the laser (which causes the harmful burn marks) to soften the paper substrate, making it more receptive to subsequent cleaning treatments. The controlled application of heat followed by immediate cooling and liquid application transforms the harmful thermal effect into a beneficial preprocessing step that facilitates residue removal.
Solution Approach 2:
The patent introduces liquid cleaning agents and compressed air as intermediary substances between the laser cutting process and the final product. These intermediaries serve to transfer and remove the harmful residue without directly interfering with the laser cutting operation itself, effectively mediating between the cutting process and the quality requirement.
2Object-generated harmful factors
If manual cleaning methods are used to remove residue, then some contamination is reduced, but paper integrity may be compromised and complete elimination is difficult
Solution Approach 1:
The patent replaces manual mechanical wiping with a combination of controlled thermal treatment, liquid application, and compressed air removal. This substitution eliminates the mechanical stress that could damage paper fibers while maintaining effective residue removal through chemical and pneumatic mechanisms.
Solution Approach 2:
The patent changes the physical parameters of the cleaning process by controlling temperature, liquid application rate, and air pressure. By optimizing these parameters, the system achieves complete residue elimination without applying excessive force or heat that could compromise paper integrity, thus resolving the contradiction between cleaning effectiveness and material preservation.
3Manufacturing precision
If protective layers are applied before cutting, then cut quality is improved, but additional processing steps and complexity are introduced
Solution Approach 1:
The patent applies protective measures immediately after cutting while the substrate is still warm and the residue is soft, rather than requiring pre-cut protective layers. This preliminary action approach eliminates the need for additional pre-processing steps while achieving the same protective effect, as the warm substrate naturally facilitates residue removal before it can set.
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 system effectively removes burn marks and residue from laser-cut paper substrates, maintaining their integrity and improving their aesthetic appearance without introducing additional damage.
Implementation Method 1
liquid is provided thereto by the liquid source, such that at least some of the provided liquid is absorbed in the resilient compressible material
Implementation Method 2
the squeezing roller is adapted to rotate about a longitudinal axis thereof in a second direction, opposed to the first direction, so as to apply pressure to the resilient compressible material of the cleaning element and to remove at least part of the absorbed liquid from the resilient compressible material
Implementation Method 3
a surface of the resilient compressible material engages the first broad surface of the substrate, the first broad surface of the substrate is cleaned by the resilient compressible material
Data Source
AI summary
A system for cleaning a surface of a substrate includes a cleaning element including a resilient compressible material. A liquid source provides liquid directly to the cleaning element, and a squeezing roller engages the cleaning element and applies pressure thereto, to squeeze out excess liquid from said resilient compressible material. A counter element opposes said cleaning element such that the substrate is disposed between the counter element and the cleaning element. The substrate moves between the counter element and the cleaning element such that a surface of the cleaning element, having a suitable amount of liquid absorbed therein, engages and cleans the surface of the substrate without damaging the substrate.