Cutting Plotter Deviation Correction via Image Scanning
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Solution Overview
Problem
Cutting plotters face alignment issues when the holding member is inclined, leading to misalignment of cutting positions relative to the pattern on the sheet, making accurate setting troublesome.
Innovation Solution
An apparatus with a cartridge holder, platen, moving mechanisms, and a processor that reads image data from markers and patterns, calculates deviations, and corrects processing data to ensure precise alignment and processing of the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the holding member is set manually on the cutting plotter, then the cutting process can be executed, but the holding member may be inclined relative to the first direction causing misalignment of cutting positions
Solution Approach 1:
The system performs preliminary scanning of the holding member to detect its position and inclination angle before the cutting process begins. This preliminary detection allows the system to pre-calculate compensation values and adjust the cutting path in advance, ensuring accurate cutting positions without requiring manual alignment of the holding member.
Solution Approach 2:
The scanning device provides feedback about the actual position and orientation of the holding member. This feedback is used by the control unit to calculate deviation from the reference position and generate corrected cutting data, creating a closed-loop system that automatically compensates for misalignment.
2Productivity
If the holding member is re-set after discharge, then another cutting process can be performed, but the holding member may be inclined in the opposite direction causing cutting position misalignment
Solution Approach 1:
Before each cutting operation, including re-setting operations, the system performs preliminary scanning to detect the holding member's position. This allows the system to pre-adjust cutting parameters based on the actual position, ensuring accuracy regardless of how many times the holding member is re-set.
Solution Approach 2:
The system automatically detects and compensates for holding member misalignment without requiring user intervention. The scanning device and control unit work together to self-correct positioning errors, allowing operators to simply re-set the holding member without worrying about precise alignment.
3Extent of automation
If the scanner reads the inclined image, then cutting data can be generated, but the cutting data is based on the inclined image causing misalignment
Solution Approach 1:
The scanner provides feedback about the actual orientation and position of the holding member by reading markers or features on it. The control unit uses this feedback to calculate the inclination angle and generate corrected cutting data that compensates for the misalignment, maintaining accuracy while preserving automatic operation.
Solution Approach 2:
The system changes the cutting parameters (position, angle, path) based on the detected holding member orientation. By dynamically adjusting these parameters according to the actual position read by the scanner, the system generates accurate cutting data even when the holding member is inclined.
Data Source
AI summary
An apparatus includes first and second moving mechanisms and a processor. The processor causes apparatus to instruct the second moving mechanism to move a holding member to a reading unit, instruct the reading unit to read first image data that is an image of mark on the holding member, calculate an amount of deviation of a first set position of the holding member by the second moving mechanism in the first image data, from a reference set position of an object, instruct the second moving mechanism to move the holding member to a reading unit, instruct the reading unit to read second image data of a pattern, generate processing data based on the second image data, correct the processing data based on the deviation amount, and control the moving mechanisms based on the corrected processing data to process the object by the pen or the cutter.