Flexible Plate Thin Film Side Wings Drum Fixation
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Solution Overview
Problem
Existing methods for fixing and treating flexible plates on rotatable drums require the use of tape or additional sheets to prevent detachment at high rotational speeds, especially for thicker plates or when the plate length is shorter than the drum circumference.
Innovation Solution
The method involves attaching thin film side wings to the flexible plate, which are at least 5 times thinner than the plate, to cover vacuum suction openings and maintain the plate's sides against the drum during rotation, allowing higher rotational speeds without the need for tape or additional sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tape is used to fix the flexible plate on the drum, then the plate can be secured during rotation, but the process becomes more complex and slower due to additional taping steps
Solution Approach 1:
The flexible plate is divided into a main body and separate side wings that can be independently positioned. The side wings extend laterally from the plate edges and are selectively engageable with vacuum suction openings, allowing localized fixation at critical areas without requiring complete coverage or additional fastening materials.
Solution Approach 2:
The side wings act as intermediary elements between the flexible plate and the vacuum suction openings. These wings provide a dedicated interface that bridges the plate and vacuum system, enabling reliable fixation through vacuum pressure distribution across multiple contact points without direct plate-to-drum adhesion requirements.
2Productivity
If the drum rotational speed is increased for faster processing, then productivity improves, but the risk of plate detachment increases
Solution Approach 1:
The side wings are pre-positioned and integrated with the flexible plate before mounting on the drum. This preliminary configuration ensures that the vacuum suction openings are already aligned with the plate edges, creating immediate fixation upon vacuum application without requiring additional adjustments during high-speed rotation.
Solution Approach 2:
The side wings are designed with specific dimensional parameters (width, thickness, material properties) that optimize their ability to maintain contact with the drum surface under varying rotational speeds. The wings' geometry is engineered to distribute vacuum forces effectively, maintaining fixation stability across a range of operational speeds.
3Reliability
If additional sheets are added to close vacuum suction openings for short plates, then vacuum sealing is improved, but the device complexity and processing time increase
Solution Approach 1:
The side wings serve multiple functions simultaneously: they provide structural reinforcement to the plate edges, act as sealing elements for vacuum suction openings, and facilitate proper plate positioning on the drum. This multi-functionality eliminates the need for separate sealing sheets or additional components.
Solution Approach 2:
The flexible plate structure itself, through its integrated side wings, provides the sealing function that would otherwise require separate additional sheets. The wings are part of the plate's own structure, enabling the plate to seal against the drum vacuum openings without external assistance or additional materials.
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 enables faster processing without the need for taping or additional sheets, reduces the risk of plate detachment, and facilitates automation by ensuring secure fixation of the flexible plate at high speeds.
Implementation Method 1
fixing the flexible plate against the drum by applying a vacuum through the plurality of vacuum suction openings
Data Source
AI summary
A method for fixing and treating a flexible plate on a drum includes: providing a flexible plate comprising a support layer made of a first material and at least one additional layer made of a second material which is different from the first material, wherein one or more thin film side wings are connected to one or more sides of the flexible plate. The one or more thin film side wings have a thickness which is at least 5 times smaller than the thickness of the flexible plate. The method further includes positioning the flexible plate on the drum such that the lower face of each thin film side wing of the flexible plate covers at least one vacuum suction opening, and performing a treatment on at least one layer of the flexible plate while rotating the drum.