COG Buffer Material Winding With Feedback Length Control
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Solution Overview
Problem
In the Chip On Glass (COG) pressing process, the existing buffer material conveying and winding devices face errors in conveying length due to loosely wound rollers, leading to repeated pressing and waste of buffer material.
Innovation Solution
A buffer material conveying and winding device comprising a rack, feed roller, recycling roller, measuring device, controller, and alarm, which measures the recycling length and adjusts the feeding length to prevent excessive or insufficient material conveyance, ensuring accurate buffer material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the feed servo motor is controlled to rotate a single time to convey buffer material, then the conveying process is simple and fast, but the feeding length has errors due to loosely wound rollers causing repeated pressing and material waste
Solution Approach 1:
The patent introduces a measuring device that detects the actual recycling length of buffer material and feeds this information back to the controller. The controller compares the measured recycling length with the set feeding length and automatically adjusts the feed servo motor's rotation to compensate for deviations, ensuring accurate feeding length while maintaining simple conveying operation
Solution Approach 2:
The patent replaces pure mechanical control (controlling feed servo motor rotation) with a measurement and control system. The measuring device uses optical or electromagnetic principles to detect buffer material length, and the controller uses computational logic to adjust the feeding process, substituting mechanical precision requirements with sensor-based measurement and electronic control
2Ease of operation
If the feed roller and recycling roller are loosely wound in different degrees, then the device structure is flexible and easy to operate, but the buffer material conveying length becomes inaccurate leading to material waste
Solution Approach 1:
The measuring device continuously monitors the actual buffer material recycling length regardless of roller winding conditions. The controller uses this feedback to calculate and adjust the required feed servo motor rotation, compensating for variations caused by different roller winding degrees and maintaining accurate conveying length
Solution Approach 2:
The system dynamically changes the feed servo motor's rotation parameter based on measured recycling length. When roller winding conditions vary, the controller adjusts the feeding length parameter to maintain accuracy, allowing flexible operation without sacrificing precision
3Device complexity
If no measuring device is installed, then the device complexity is low and the structure is simple, but the feeding length cannot be accurately controlled resulting in buffer material waste
Solution Approach 1:
The measuring device provides real-time feedback on buffer material recycling length to the controller, which automatically adjusts the feed servo motor to achieve accurate feeding length control, preventing buffer material waste through closed-loop control
Solution Approach 2:
The patent replaces manual or open-loop mechanical control with an automated measurement and control system. The measuring device and controller work together to precisely control feeding length, reducing material waste despite the added device complexity
Data Source
AI summary
Disclosed are a buffer material conveying and winding device, a buffer material conveying method and an assembly binding system, belonging to the technical field of a chip on glass. The buffer material conveying and winding device comprises a rack, a feed roller, a feed servo motor, a recycling roller, a recycling torque motor, a measuring device, a controller and an alarm. The controller may monitor whether the recycling length meets the requirement through the measuring device. The buffer material conveying method is based on the buffer material conveying and winding device. The assembly binding system comprises a buffer material conveying and winding device, a buffer material and a pressing head device.