Pressing Roller Reversal for Fiber Web Debris Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The normal transport of a web in sheet manufacturing is hindered by foreign matter such as fiber waste or paper pieces generated when the web is peeled from the pressing unit.
Innovation Solution
A fiber body production apparatus and method that includes a forming mechanism, a roller for transporting and pressing a mixture of fibers and binder, a peeling blade, and a cleaner to remove foreign matter by reversing the roller's rotation and using a cleaner to move adhering debris to the roller, compressing it, and passing it between the peeling blade and roller for removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the web is peeled from the pressing unit, then the fiber body production process continues, but foreign matter such as fiber waste or paper pieces adheres to the peeling blade and roller, hindering normal transport
Solution Approach 1:
The system performs preliminary cleaning actions by detecting foreign matter on the peeling blade and roller, then automatically reverses the roller to transport the foreign matter to a cleaning station before it can hinder production. This preventive approach maintains continuous productivity without manual intervention.
Solution Approach 2:
The cleaning system uses the roller's own reverse rotation to transport foreign matter from the peeling blade to the cleaning station, eliminating the need for separate cleaning mechanisms. The system cleans itself using its existing components in a different operational mode.
2Object-generated harmful factors
If the roller is reversed to move foreign matter, then foreign matter is transported to the roller for cleaning, but the roller must stop normal forward rotation temporarily
Solution Approach 1:
The system implements periodic cleaning cycles where the roller reverses for a brief period to transport foreign matter, then returns to forward rotation. This periodic action allows the system to maintain high productivity while periodically eliminating foreign matter accumulation.
Solution Approach 2:
The roller quickly reverses just enough to transport foreign matter to the cleaning station, minimizing the interruption time. The system rushes through the cleaning action efficiently rather than performing a prolonged cleaning process.
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
Prevents normal transport hindrance by effectively removing foreign matter, ensuring smooth operation and reducing waste, contributing to sustainable consumption patterns by recycling used paper.
Implementation Method 1
a cleaner that cleans the roller at a position where the mixture does not pass, after a rear end of the mixture passes through the roller, the roller is reversely rotated to move foreign matter adhering to the peeling blade to the roller
Implementation Method 2
the roller is rotated forward to transport the foreign matter, compress the foreign matter on the roller
Data Source
AI summary
A fiber body production apparatus includes a forming mechanism that forms a mixture, a pressing unit that transports the mixture while pressing the mixture, a peeling blade that peels the mixture from the pressing unit, a cleaner that cleans the pressing unit, and a shaping mechanism that shapes the mixture, after a rear end of the mixture passes through the pressing unit, the pressing unit is reversely rotated to move foreign matter adhering to the peeling blade to the pressing unit, after the roller is reversely rotated by a predetermined amount, the pressing unit is rotated forward to transport the foreign matter, compress the foreign matter on the pressing unit, and cause the compressed foreign matter to pass between the peeling blade and the pressing unit, and the cleaner removes the transported foreign matter from the pressing unit.