De-taping Machine for Lens-Mold-Assembly Tape Removal
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Solution Overview
Problem
The manual process of removing tape from lens-mold-assemblies in lens manufacturing is inefficient, relying on operator skill and resulting in low productivity due to time consumption and human fatigue, with limited accuracy and high dependency on manual detection.
Innovation Solution
A de-taping machine with a lens-mold-assembly-rotation mechanism and a tape gripping mechanism that includes proximity and contact sensing arrangements to automatically detect and grasp the tape tail, allowing for controlled rotation speed adjustment and precise clamping, enabling automated and accurate tape removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual tape removal process is used, then operator flexibility is maintained, but productivity is low and time consumption is high
Solution Approach 1:
The system uses automatic detection and rotation control where the machine itself identifies the tape tail position and adjusts rotation speed without human intervention, achieving self-service operation that dramatically improves productivity
Solution Approach 2:
The patent replaces manual mechanical operations with an automated system combining optical/electronic detection (sensors) and automated rotation control, substituting human mechanical actions with an integrated automated mechanism
2Measurement precision
If manual detection of tape tail is used, then simple device structure is maintained, but measurement precision is low
Solution Approach 1:
The patent replaces manual visual detection with automated sensing arrangements that electronically detect the tape tail position, achieving high measurement precision through sensor-based detection rather than human vision
Solution Approach 2:
The sensing arrangement acts as an intermediary between the tape tail and the control system, translating physical presence into detectable signals that enable precise position determination without direct human observation
3Productivity
If constant rotation speed is used, then simple control is maintained, but productivity varies due to detection timing issues
Solution Approach 1:
The system dynamically adjusts rotation speed based on detection signals, transitioning between different operational states (normal rotation, deceleration, stopping) to optimize tape removal timing and maintain consistent productivity
Solution Approach 2:
The control system uses feedback from sensing arrangements to continuously monitor tape tail position and adjust rotation speed accordingly, creating a closed-loop control system that ensures consistent operational performance
Data Source
AI summary
A de-taping machine for removing a tape around a lens-mold-assembly. The machine including a lens-mold-assembly-rotation mechanism for holding and rotating the lens-mold-assembly and a tape gripping mechanism. The tape gripping mechanism including a first jaw having a clamping surface; a second jaw movable towards the first jaw for clamping a free end of the tape; a proximity sensing arrangement to generate a first detection signal when the free end of the tape is at a pre-determined distance from the first jaw; and a contact sensing arrangement to generate a second detection signal when the tape is in contact with the first jaw. A rotational speed of the lens-mold-assembly-rotation may be varied based on the first detection signal. Further, the lens-mold-assembly-rotation mechanism may be stop and the tape gripping mechanism may move the second jaw for clamping based on the second detection signal. A corresponding method for tape removal.