Building Board Lamination Peel-Off Force Control
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Solution Overview
Problem
Existing lamination systems for building boards are prone to faults due to external boundary condition changes, and they lack automated adaptation measures, making it difficult to apply lamination materials evenly and efficiently, especially on both sides of the board without interrupting the production process.
Innovation Solution
A method and system that uses a top layer web with an adhesive layer and a peel-off film, where the peel-off force is controlled using sensors and controllers to maintain a predefined value, allowing for adjustable drive torques and pressures to ensure consistent lamination on both sides of the building board core, enabling flexible and efficient production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional lamination system is used without automated control, then the system is simpler and easier to operate, but the lamination quality becomes inconsistent due to external boundary condition changes
Solution Approach 1:
The patent implements a feedback control system where sensors continuously monitor the actual peel-off force during lamination. The controller compares this actual value with a predefined target value and automatically adjusts process parameters (such as drive torque or pressure roller distance) to eliminate deviations. This closed-loop feedback mechanism ensures consistent lamination quality despite changes in external boundary conditions like material batch variations or environmental factors.
Solution Approach 2:
The system dynamically changes process parameters based on real-time measurements. When the sensor detects that the actual peel-off force deviates from the target value, the controller automatically adjusts parameters such as the drive torque of the peel-off film roll-up roller or the distance between the pressure roller and wear layer. This parameter adaptation allows the system to maintain optimal lamination conditions despite varying external conditions.
2Productivity
If manual lamination processes are used, then the equipment is simpler, but productivity is lower and production downtime increases when changing materials or designs
Solution Approach 1:
The lamination system performs self-adjustment through automated control. The sensors and controller enable the system to automatically monitor and correct its own operation without manual intervention. When lamination parameters deviate from optimal values, the system self-corrects by adjusting drive torques or pressure roller positions, eliminating the need for manual recalibration and reducing production downtime during material or design changes.
Solution Approach 2:
The system transitions from static, fixed parameters to dynamic, adaptive parameters. The drive torques and pressure roller positions are no longer fixed but can be automatically adjusted in real-time based on sensor feedback. This dynamic capability allows rapid adaptation to different materials and designs, significantly improving productivity while reducing changeover time.
3Reliability
If high peel-off force is applied to remove the peel-off film, then the film is more effectively removed, but the adhesive bond between the wear layer and building board may be compromised
Solution Approach 1:
The feedback control system precisely monitors the actual peel-off force during film removal. By comparing the measured force with the predefined target value, the system ensures that the peel-off force remains within the optimal range - sufficient to effectively remove the film without exceeding the threshold that would damage the adhesive bond between the wear layer and the building board core.
Solution Approach 2:
The system dynamically adjusts the peel-off force parameter during the lamination process. The controller modulates the drive torque of the peel-off film roll-up roller to maintain the actual peel-off force at the predefined target value, ensuring effective film removal while protecting the adhesive bond strength. This parameter control prevents both insufficient film removal and excessive force application.
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
This approach allows for high-quality, wrinkle-free lamination on both sides of building boards, reduces production downtime, and enables the use of various materials and designs, including those with complex geometries, while minimizing the need for reworking and improving vapor impermeability.
Implementation Method 1
a top layer web (13) is provided as the lamination material, the top layer web (13) comprising a wear layer (15) provided with an adhesive layer (14)
Data Source
AI summary
A method and system for laminating a building board core with a use or wear layer, and a resultant board, in which the board core is provided with a lamination material on its top side and/or bottom side. A cover sheet that is provided as the lamination material has a wear layer provided with an adhesive layer and a peel-off film on the adhesive layer. To automate the manufacturing process and comply with predefined working conditions, the peel-off film is pulled off the adhesive layer with a predefined peel-off force and the wear layer is fixed to the top side or the bottom side of the board core by a pressure roller. Faults can occur if changing boundary conditions cause a change in the pull-off force, in which case a deviation between the relevant actual value and the predefined target value can lead to a fault in the process.