Log Saw Blade Cleaning Using Sprayed Cleaner and Cutting Action
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Solution Overview
Problem
Manual cleaning of saw blades in paper manufacturing is hazardous due to accumulated fiber, glue, and metal particles, requiring a safer and automated method to reduce operator exposure.
Innovation Solution
A saw blade cleaner application system integrated with or separate from the lubrication system, using machine vision to detect blade cleanliness and apply cleaner via spraying, with controlled advancement of logs for cleaning cuts, utilizing centrifugal force to clean the blade edge, and adjustable parameters for optimal cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual cleaning of saw blade is performed, then blade cleanliness is improved, but operator safety deteriorates due to exposure to sharp blade edge and hazardous materials
Solution Approach 1:
The system enables self-service cleaning where the saw blade cleans itself by cutting through the log after cleaner application. The blade's own cutting action removes accumulated fiber, glue, and chemicals from its surface, eliminating the need for manual cleaning by operators.
Solution Approach 2:
The manual mechanical wiping process is replaced with an automated system that applies cleaner and uses the blade's cutting mechanics to remove contaminants. The system substitutes human-operated mechanical cleaning with an automated process involving cleaner application followed by controlled cutting action.
2Object-affected harmful factors
If automated cleaner application system is implemented, then operator safety is improved by eliminating manual cleaning, but device complexity increases due to integration of vision system and automated mechanisms
Solution Approach 1:
The system combines multiple functions into a single integrated process: the vision system detects blade cleanliness, the application system delivers cleaner, and the saw system performs cleaning cuts. This multi-functional integration automates what was previously a simple manual task while managing complexity through functional consolidation.
Solution Approach 2:
The machine vision system continuously monitors blade cleanliness and provides feedback to control the cleaning process. This feedback mechanism allows the system to determine when cleaning is needed and when the blade is sufficiently clean, enabling automated decision-making without excessive complexity.
3Manufacturing precision
If cleaner is applied and blade is rotated to migrate contaminants by centrifugal force, then cleaning effectiveness is improved, but loss of time increases due to additional rotation step
Solution Approach 1:
The system applies cleaner to the blade in advance before the cutting operation. This preliminary action allows the cleaner to penetrate and loosen accumulated contaminants, making them easier to remove during the subsequent cutting process and reducing the need for extended cleaning time.
Solution Approach 2:
The cleaning process is integrated into the continuous cutting operation. Rather than separating cleaning into distinct time-consuming steps, the system maintains continuous useful action by applying cleaner and immediately utilizing the cutting process to remove contaminants, minimizing idle time.
4Manufacturing precision
If log advancement is controlled for cleaning cuts, then cleaning quality is improved, but productivity decreases due to interruption of normal cutting operations
Solution Approach 1:
The system implements periodic cleaning cycles during normal cutting operations. Rather than stopping production for extended cleaning sessions, the blade is cleaned at regular intervals by incorporating cleaning cuts into the continuous cutting process, maintaining productivity while ensuring consistent blade quality.
Solution Approach 2:
The cleaning operation is merged with the normal cutting process. Cleaning cuts are integrated into the sequence of production cuts, allowing the blade to be cleaned using the same cutting mechanism and log advancement system already in place for production, thereby minimizing disruption to productivity.
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
Automates the cleaning process, minimizing operator hazard, optimizing blade cleanliness, and reducing waste by using existing conveyor and saw systems for coordinated operations, allowing for efficient resumption of normal cutting operations.
Implementation Method 1
The cleaning cycle may include rotating the saw blade with the applied cleaner on the saw blade for a period of time to allow the contaminants and the cleaner to migrate to an outer edge of the rotating saw blade by centrifugal force
Data Source
AI summary
A method of cleaning a blade of a log saw of a converting line comprises applying a cleaning agent to a saw blade. The saw blade is adapted to cut a log of web material into rolls as the log of web material advances on a conveyor. In an another step of the method the log is advanced on the conveyor for cutting with the saw blade. In another step of the method, the saw blade is cleaned by cutting the log with the saw blade with the cleaning agent applied to the saw blade.