Film Stack Carrier Plate Automation
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Solution Overview
Problem
Existing methods for producing film stacks, particularly for thin and sensitive materials like green ceramic films, face challenges such as damage during manual handling, high reject rates, limited precision in automated systems, and quality defects from punching scraps, which hinder high accuracy and quality stacking.
Innovation Solution
A method involving a carrier plate to hold and position film sheets precisely, using a height-adjustable stack mold and negative pressure for accurate alignment and deposition, eliminating the need for complex alignment processes and allowing for variable stack height and sequence flexibility, including the use of punching, printing, and vision system checks without position changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual stacking is used, then flexibility in handling different film sequences is improved, but damage to thin and sensitive foils occurs resulting in cracks, dents, perforations, folded edges, and displacements
Solution Approach 1:
The patent replaces manual mechanical handling with an automated stacking system that uses a support plate and controlled deposition mechanism. The system mechanically transfers films from a film pack through a transfer region onto a stack mold using controlled movement rather than manual manipulation, eliminating human-caused damage while maintaining sequence flexibility through programmable control.
Solution Approach 2:
The patent introduces a support plate as an intermediary carrier between the film pack and the stack mold. The support plate holds the film during transfer, providing a stable intermediate platform that prevents direct contact damage. The controlled transfer region acts as an intermediary space where films are carefully deposited onto the stack mold without direct manual handling.
2Manufacturing precision
If automated stacking systems with high-precision vision systems and alignment tables are used, then stacking precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts and eliminates the complex high-precision vision systems and alignment tables from the stacking process. Instead, it uses a simplified support plate mechanism with controlled movement to achieve precise film placement. The system removes unnecessary complex alignment infrastructure while maintaining stacking precision through direct controlled deposition.
Solution Approach 2:
The support plate system performs self-alignment through its controlled movement mechanism. The film is held on the support plate and automatically positioned during transfer to the stack mold without requiring external vision systems or alignment tables. The system serves its own alignment function through programmed motion control of the support plate.
3Extent of automation
If direct punching of film into stacking form is used, then automation is improved, but punching scraps contaminate the stacking mold leading to quality defects
Solution Approach 1:
The patent segments the punching and stacking operations into separate distinct steps. Films are first punched from the film pack onto the support plate, then transferred through a controlled transfer region onto the stack mold. This segmentation prevents punching scraps from directly contaminating the stacking mold, as the support plate acts as an intermediate holding surface that can be cleaned or replaced.
Solution Approach 2:
The support plate serves as an intermediary carrier between the punching operation and the stacking mold. It receives punched films and holds them during transfer, preventing punching scraps from directly contacting and contaminating the stacking mold. The support plate can be easily cleaned or replaced to maintain stacking mold cleanliness.
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
Enables high-accuracy and high-quality stacking of printed and unprinted films, including very thin ones, with reduced reject rates and improved precision, allowing for precise alignment and edge alignment without the need for center marks, and accommodating various film orientations and thicknesses.
Implementation Method 1
holding the foil sheet on the carrier plate in the specified position
Implementation Method 2
moving a height-adjustable floor of the stack mold in the direction of the carrier plate, with stacked film sheets in the stack mold being moved towards the held film sheet
Implementation Method 3
depositing the film sheet in the stack form
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a method for producing a film stack, having the following steps: - providing a film (14), - separating a film sheet (2) from the film such that the film sheet is positioned in a specified position on a support plate (1), - holding the film sheet on the support plate in the specified position, - moving the support plate with the held film sheet over a stack container (5), said film sheet remaining in the specified position, and - placing the film sheet into the stack container.