Laminating Apparatus for Non-Rectangular Electrodes
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Solution Overview
Problem
Roll laminating of non-rectangular objects faces challenges in maintaining constant laminating pressure across the surface, leading to potential damage and quality issues in electric energy accumulating devices due to varying object widths.
Innovation Solution
A laminating apparatus with adjustable rollers and programmable electronic motor control means that vary the laminating force based on the object's width, ensuring constant pressure through a movable element connected by elastic means and driven by a motor, using sensors to adjust the force proportionally to the object's dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed laminating force is applied by the rollers, then the apparatus structure is simple, but the laminating pressure varies across the surface of non-rectangular objects
Solution Approach 1:
The patent applies the dynamics principle by making the laminating force adjustable through a motor-driven movable element that can vary the pressure applied by the rollers. This allows the system to adapt the laminating force dynamically based on the object's width, ensuring uniform pressure distribution across non-rectangular objects while maintaining a relatively simple overall apparatus structure.
2Strength
If the laminating force is increased to ensure adequate pressure, then strong coupling is achieved, but the separating film may be damaged
Solution Approach 1:
The patent applies the local quality principle by adjusting the laminating force according to the local width of the object. The control system varies the pressure locally across different sections of the object, applying higher force where needed for strong coupling while reducing force in areas where the separating film is more vulnerable, thus preventing damage while ensuring adequate bonding strength.
Solution Approach 2:
The patent implements feedback control by using sensors to detect the object's width and feeding this information to the control system, which then adjusts the laminating force accordingly. This closed-loop feedback mechanism ensures that the force applied is optimized for each local section, achieving strong coupling without exceeding the separating film's damage threshold.
3Object-affected harmful factors
If the laminating force is decreased to protect the separating film, then film damage is prevented, but insufficient coupling results
Solution Approach 1:
The patent uses dynamics to vary the laminating force in real-time as the object passes through the rollers. The motor-driven movable element responds to feedback signals about the object's width, dynamically adjusting the pressure to maintain film integrity while ensuring sufficient coupling strength at each location.
Solution Approach 2:
The system applies different laminating forces to different local sections of the object based on their specific width and vulnerability characteristics. This localized quality control ensures that each area receives the appropriate force level to protect the separating film while achieving the necessary coupling strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Achieves consistent and strong coupling between electrodes and separating film, preventing damage and ensuring high-quality lamination of non-rectangular electrodes, maintaining the necessary features for electric energy accumulating devices.
Implementation Method 1
a movable element (6) causing variation in the load of the first elastic means (51) and the consequent variation in the laminating force
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
There is described a laminating apparatus for coupling electrodes of non-rectangular shape with a separating film for the manufacture of electric energy accumulating devices, wherein a pair of laminating rollers has a roller driven by elastic means loaded with a variable force adjusted by an endless screw conveyor controlled by a brushless motor, during the passage of the electrodes, so as to vary the laminating force according to the width of the electrode laminated instant by instant, in order for the laminating pressure to remain almost constant.