Power Saw Blade Cooling Layout to Limit Coolant Mist and Dust
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Solution Overview
Problem
Conventional cutting machines suffer from the issue of residual particles and cooling fluid being sprayed excessively during the cutting process, leading to pollution and potential damage to the motor due to accumulated particles and over-saturation, with existing cooling mechanisms failing to effectively collect sidewardly splashed coolant and particles.
Innovation Solution
A power saw blade cooling arrangement that uses a fluid nozzle unit to deliver cooling fluid onto the cutting blade, adhering it via adhesion and cohesion, combined with residual particles, and is angled rearward to prevent over-saturation, while a splash guard diverts the fluid and particles to control the cooling fluid's area of effect, minimizing moisture buildup and particle dispersal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If liquid coolant is delivered onto the cutting saw in the direction of blade rotation, then the cutting saw is cooled during cutting operation, but the liquid coolant causes over saturation and spraying/misting due to centrifugal force
Solution Approach 1:
The patent reverses the conventional cooling approach by delivering liquid coolant opposite to the direction of blade rotation. Instead of spraying in the rotation direction where centrifugal force throws coolant outward, the coolant is sprayed against the rotation direction, allowing the blade's movement to press the coolant into the cutting zone and prevent over-saturation and spraying.
2Object-affected harmful factors
If residual particles are collected during cutting, then pollution from spitting out particles is reduced, but the rotational force of the cutting saw spits particles rearwardly and sidewardly making collection difficult
Solution Approach 1:
The patent combines the cooling fluid delivery system with the particle collection system. The cooling fluid sprayed opposite to blade rotation serves dual purposes: cooling the blade and trapping residual particles. The fluid and particles are directed rearwardly by the blade rotation and collected by a rear guard, merging cooling and particle collection functions into a unified system.
3Ease of operation
If cooling fluid is delivered onto the cutting blade, then friction is reduced and blade is cooled, but excessive cooling fluid creates puddles and cannot be effectively collected
Solution Approach 1:
The patent employs periodic action by synchronizing coolant delivery with the rotational cycle of the blade. Coolant is sprayed during specific phases of the blade rotation when it is moving through the cutting zone, rather than continuous spraying. This periodic delivery ensures adequate cooling and lubrication while minimizing excess fluid accumulation and puddle formation.
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
This solution effectively reduces the pollution from residual particles and cooling fluid, minimizes the amount of cooling fluid used, and prevents motor damage by ensuring the cooling fluid and particles are collected and diverted, maintaining a cleaner cutting environment without altering the existing machine design.
Implementation Method 1
delivering cooling fluid onto the cutting blade to make the cooling fluid adhere on the cutting blade by means of adhesion and cohesion of the cooling fluid
Implementation Method 2
delivering cooling fluid onto the cutting blade to make the cooling fluid adhere on the cutting blade by means of adhesion and cohesion of the cooling fluid
Implementation Method 3
The cooling fluid further acts as a lubricant which does cool the cutting blade by allowing the cutting blade to encounter less friction as it cuts away the work piece
Data Source
AI summary
A cutting machine includes a motor assembly, a cutting blade powered by the motor assembly for cutting a work piece, and a cooling arrangement which includes a fluid nozzle unit for delivering cooling fluid onto a cutting edge portion of the cutting blade to ensure the cooling fluid to adhere on the cutting blade by means of adhesion and cohesion of the cooling fluid so as to cool the cutting blade during the cutting operation and to combine the cooling fluid with residual particles of the work piece after the work piece is cut. Therefore, no excessive cooling fluid is stayed on the cutting blade to minimize the formation of dust, and misting of the cooling fluid during the cutting operation.