Weather Strip Attachment System Defect Tagging
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Solution Overview
Problem
The existing methods for attaching weather strips to moving vehicle parts, such as doors, fail to effectively identify and prevent the attachment of defective portions, leading to reduced quality and reliability of the sealing process.
Innovation Solution
A weather strip attachment system that includes a supply unit, an attaching unit, a tag for storing defective portion position information, a reader antenna for receiving this information, and a controller to control the cutting position of the attaching unit, ensuring that defective sections are automatically removed and not attached to the component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the weather strip is continuously supplied through a feed roll and attached to the moving part, then the productivity is improved, but the defective portions cannot be effectively identified and prevented from attachment
Solution Approach 1:
The system performs preliminary inspection of the weather strip during the extruding process and stores defect position information in a tag before the attachment process begins. This allows the continuous supply to proceed without interruption while defect information is pre-captured and ready for use during attachment.
Solution Approach 2:
The reader antenna reads the tag information during the attachment process to obtain real-time feedback on defect positions. The controller uses this feedback information to dynamically adjust the cutting position, ensuring defective portions are excluded from attachment while maintaining continuous production flow.
2Device complexity
If the adhesive layer is attached together with the extruding process, then the manufacturing complexity is reduced, but the ability to control attachment quality is worsened
Solution Approach 1:
The tag serves as an intermediary carrier that stores defect position information generated during extruding. This intermediary allows the integrated extruding-attaching process to maintain quality control by providing a medium through which inspection data is transmitted to the attachment controller.
Solution Approach 2:
The system replaces manual inspection and quality control mechanisms with an automated optical inspection system and RFID-based information transmission. This substitution enables precise defect detection and positioning while maintaining the simplicity of the integrated process.
3Measurement precision
If the weather strip is inspected in real time during extruding, then the measurement precision is improved, but the loss of time for information transmission and processing occurs
Solution Approach 1:
Instead of transmitting large amounts of raw inspection data, the system creates a compact copy of the essential information (defect positions) and stores it in the tag. This copying approach preserves measurement precision while minimizing data transmission time and processing requirements.
Solution Approach 2:
The inspection and information storage are performed in advance during the extruding process. By the time the attachment process begins, all necessary defect information is already captured and stored in the tag, eliminating any time loss during the attachment phase.
Data Source
AI summary
The present disclosure provides an attachment system of a weather strip, including: a supply unit configured to unwind the weather strip that winds with a predetermined length and to supply the weather strip, an attaching unit configured to attach the weather strip to a surface of a component by the adhesive layer and to cut the weather strip at a predetermined position, a tag provided in the supply unit that is configured to store position information of the defective portion of the weather strip detected during the weather strip extruding process, a reader antenna provided during the weather strip assembling process that is configured to receive the position information of the defective portion, and a controller configured to control a cutting position of the weather strip discharging side of the attaching unit based on the position information of the defective portion.