Dual-Side Lamination Machine for Glass with Electrostatic Film Handling
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Solution Overview
Problem
Existing lamination techniques for protecting building glass glazing are inefficient as they often apply films only on one side of the window, lack precise positioning, and fail to adapt to varying dimensions, leading to suboptimal productivity and material waste.
Innovation Solution
A method and machine design that simultaneously applies protective films to both sides of a flat part moving along a horizontal path, using series application units with overlapping films and precise positioning systems, including electrostatic charge bars for film adherence, to ensure complete coverage and efficient cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-sided film application system is used, then the device complexity is reduced, but the productivity and protection completeness deteriorate
Solution Approach 1:
The lamination machine is divided into multiple independent application units (first application unit, second application unit, third application unit, fourth application unit) that can operate simultaneously on different sides of the glass pane. Each unit has its own film supply reel and application mechanism, allowing parallel processing of multiple surfaces without increasing overall system complexity proportionally.
Solution Approach 2:
Multiple application units are merged into a single integrated lamination machine structure that processes both faces of the glass pane simultaneously. The machine combines film supply, application, and cutting functions across multiple units in one cohesive system, improving productivity while maintaining manageable complexity.
2Ease of operation
If suction is used to hold the film, then the ease of operation is improved, but the manufacturing precision of film positioning deteriorates
Solution Approach 1:
An electrostatic charge bar is introduced as an intermediary mechanism between the film and the application unit. The charge bar generates electrostatic forces that precisely hold the film in position during application, replacing suction as the holding mechanism. This provides both ease of operation and high positioning precision simultaneously.
3Device complexity
If fixed-height application units are used, then the device complexity is reduced, but the adaptability to different glass dimensions deteriorates
Solution Approach 1:
The application units are equipped with adjustable height mechanisms that allow them to move vertically to different positions. This dynamic adjustment capability enables the machine to adapt to glass panes of varying heights while maintaining a relatively simple overall structure. The first and second application units can be positioned at different heights to match the specific dimensions of each glass pane.
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 optimizes the lamination process by ensuring precise and effective film placement on both sides of the glass, adapting to different dimensions, and minimizing material waste, thereby enhancing productivity and efficiency.
Implementation Method 1
Each application unit (Ua1, Ua2, Ub1, Ub2) comprises, in association with each application drum (T), a controlled electrostatic charge bar (11) connected to an electrostatic charge generator and controlled to hold each film (5) in contact with an application drum (T) after it has been cut and until it has been applied to the part
Data Source
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AI summary
The subject matter of the invention relates to a laminating method comprising: • disposing a plurality of first application units (Ua1, Ua2,...) in series on the horizontal path of a first face of the part and a plurality of second application units (Ub1, Ub2,...) in series on the horizontal path of the second face of the part, said units each being positioned opposite a first application unit located on the first face; • placing the first application units (Ua1, Ua2,...) and the second application units (Ub1, Ub2,...) in different vertical positions such that the combined application with overlapping of the protective films on each of the faces of the part corresponds to the height of the surface covered by the films; • applying, using the first application units and the second application units, the protective films respectively on the first face and on the second face of the part, from the front edge of its surface to be covered; and • successively cutting, as a function of the horizontal path of the part, the protective films at the rear edge of the surface.