Blade Cleaning and Optical Height Detection for Cutting Machines
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Solution Overview
Problem
Existing blade measurement systems in cutting machines are inaccurate due to dust and slag on the blade, requiring manual operator intervention and prolonged setup times, and lack automatic adjustment capabilities.
Innovation Solution
A device that automatically cleans the blade using compressed air and optionally a brush, followed by precise optical sensing to measure the blade's height, integrated with a programmable control system for real-time adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement of blade height is performed using optical sensors, then blade height can be detected, but dust and slag on the blade alter the detection accuracy
Solution Approach 1:
The device performs preliminary cleaning of the blade using compressed air nozzles and brushes before the optical sensor conducts the height measurement. This preliminary action removes dust and slag from the blade surface, ensuring that the subsequent measurement is not affected by contamination, thereby resolving the contradiction between measurement accuracy and contamination.
2Reliability
If periodic blade checking is performed manually, then blade integrity and height can be verified, but it requires significant operator intervention and time
Solution Approach 1:
The device enables self-service operation by automatically cleaning the blade with compressed air and brushes, then automatically measuring the blade height using optical sensors, and finally automatically adjusting the blade position based on the measurements. This eliminates the need for manual operator intervention in periodic blade checking, reducing setup time while maintaining reliable verification of blade integrity and height.
Solution Approach 2:
The device incorporates feedback control by comparing the measured blade height against reference values and automatically adjusting the blade position through motorized mechanisms. This closed-loop feedback system ensures reliable blade integrity verification while minimizing the time required for adjustments, as the system self-corrects without waiting for manual intervention.
3Manufacturing precision
If frequent blade replacement is performed, then cutting quality can be maintained, but setup time increases significantly
Solution Approach 1:
The device performs preliminary cleaning and measurement of the blade before it is fully worn out. By detecting blade height and condition early, the system can schedule maintenance during optimal times rather than waiting for complete wear, reducing the frequency of emergency blade replacements and minimizing setup time while maintaining cutting quality.
Solution Approach 2:
The continuous feedback from optical sensors monitors blade height and wear in real-time, allowing the system to optimize blade replacement timing. This feedback mechanism ensures cutting quality is maintained by replacing blades at the optimal moment rather than waiting for degradation, thereby reducing the frequency and time of replacements.
4Measurement precision
If blade height adjustment is performed manually, then the reference system can be redefined, but operator time and precision are compromised
Solution Approach 1:
The device performs self-service by automatically measuring blade height with optical sensors and executing precise adjustments through motorized mechanisms. The system independently redefines the reference system without operator intervention, maintaining high measurement precision while eliminating the manual operation requirements and associated time losses.
Solution Approach 2:
The device replaces manual mechanical adjustment operations with automated motorized mechanisms controlled by a microprocessor. This substitution maintains high precision in reference system redefinition while eliminating the need for operator intervention, as the automated system executes adjustments with consistent accuracy without human error or time constraints.
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
Enhances precision and reduces setup times by ensuring accurate blade height detection and automatic adjustments, minimizing operator intervention and belt wear.
Implementation Method 1
a blowing nozzle (24) for emitting a blow of compressed air to clean the blade (18)
Implementation Method 2
an optical sensor (44), inserted in the body (32), in position to detect a height of the blade (18)
Data Source
Figure 1
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AI summary
A device (20, 20') for the cleaning and dimensional detection of the blade (18) of the cutting heads (16) of cutting machines and tables (10), made of metal or other suitable material and intended to be fixed to the edge (12') of the belt (12) of a cutting table or machine (10), comprises at least a first body (32, 32'), provided with at least one compressed air blowing nozzle and a seat (36) extended deep inside the body itself and such as to partially divide it into two sectors (38, 40), in turn provided with a recess (42, 42') which is orthogonal with respect to said seat (36) in which the blade (18) is inserted at least in part to perform the dimensional detection thereon through at least one optical sensor (44) arranged adjacent to the same seat (36).