Variable-Radius Film Peeling for Compact, Low-Torque Removal
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Solution Overview
Problem
Existing film peeling equipment requires large operating space and generates high force torque, leading to potential product displacement or deformation, especially for large or irregularly shaped objects, due to the straight path peeling mechanism and subsequent return path.
Innovation Solution
A method and device utilizing a fulcrum-based, variable radius circular traction force to peel off films, employing a rotating arm with changing radii to minimize peeling path and force requirements, combined with a compact design for efficient film removal and dropping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the peeling mechanism operates along a straight path, then the peeling process is simple, but the peeling equipment requires huge space and generates large force torque
Solution Approach 1:
The patent applies a circular path mechanism instead of a straight path for peeling the film. The peeling mechanism moves along a circular trajectory around the object, which reduces the required equipment space while maintaining effective peeling action. The circular path allows the mechanism to stay closer to the object throughout the peeling process.
Solution Approach 2:
The patent employs a variable radius rotating arm that dynamically adjusts its length during the peeling process. The arm starts with a longer radius to initiate peeling and then transitions to a shorter radius for completing the peeling and dropping the film. This dynamic adjustment optimizes the peeling effectiveness while reducing the overall space requirement.
2Device complexity
If the peeling mechanism operates along a straight path, then the mechanism structure is simple, but large force torque is generated causing product move or deformation
Solution Approach 1:
The circular peeling path distributes the peeling force more evenly around the object compared to a straight path. This curvature-based approach reduces the concentration of force at any single point, thereby minimizing the torque that causes product displacement or deformation while maintaining peeling effectiveness.
Solution Approach 2:
The variable radius rotating arm dynamically adjusts the peeling force application point. By changing the radius during the peeling process, the system optimizes the moment arm and reduces excessive torque generation, preventing product damage while maintaining peeling effectiveness.
3Productivity
If the peeling mechanism returns to original position along the peeling path, then the mechanism can perform next peeling, but the total path increases reducing operating efficiency
Solution Approach 1:
The patent combines multiple functions into a single circular motion cycle. The peeling mechanism performs peeling, film release, and positioning for the next object all within one continuous circular path rotation. This merging of functions eliminates separate return paths and dropping paths, significantly reducing total operation time and improving productivity.
Solution Approach 2:
The circular path mechanism enables continuous peeling action without interruption. The mechanism maintains contact with the film throughout the circular trajectory, ensuring continuous peeling progress. The system can seamlessly transition from one object to the next without returning to the starting position, maintaining continuous productive action.
Data Source
AI summary
A film peeling method is disclosed to peel off a film covered on the surface of an object. The method includes the steps of: setting a fulcrum located at outer side of the object; setting a lift-off position on the film; and picking up the film from the lift-off position with the fulcrum as the axis, and applying a circular traction force with a variable radius on the film for peeling off the film from the object. The film peeling method can peel off the film covered on the surface of the object by different peeling stages, to reduce the peeling path and reduce the force required for peeling the film, thereby reducing the peeling time and improving the peeling efficiency.