Melt Bonding Press Layout to Prevent Belt Sheet Lifting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing melt bonding devices often impair the function or form of multilayer belt-shaped worked sheets and their melt bonded parts due to sticking issues during and after the heat sealing process, especially when dealing with fiber bundles, leading to damage and loss of commercial value.
Innovation Solution
The implementation of a melt bonding device with preventive stoppers arranged near the press and anvil to prevent lifting of the worked sheet, combined with a heat insulating plate and chamfered sealing-use projections on the press, ensures stable separation and minimizes sticking, while maintaining efficient heat distribution for effective bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the press moves upward after sealing the worked sheet, then the press completes its sealing cycle and can be reused, but the worked sheet gets lifted up and stuck to the press causing damage
Solution Approach 1:
The anvil is designed with an upward movement capability that activates before the press moves upward. This preliminary action creates a counterbalancing force that prevents the worked sheet from being lifted by the press, thereby eliminating the sticking problem while allowing the press to complete its upward motion for cycle reuse
2Reliability
If the press applies heat and pressure to seal the worked sheet, then effective bonding is achieved, but fiber bundles stick to the press and lose their inherent function
Solution Approach 1:
The anvil provides a counterbalancing support force from below that opposes the adhesive force between the fiber bundles and the press. By moving upward simultaneously with the press, the anvil creates a mechanical counterweight effect that prevents fiber bundles from adhering to the press surface while maintaining effective bonding pressure during sealing
3Manufacturing precision
If the press and anvil remain stationary during sealing, then stable bonding is achieved, but the worked sheet cannot be separated cleanly after sealing
Solution Approach 1:
The system transitions from a static configuration to a dynamic one where both the press and anvil move upward together after sealing. This coordinated dynamic motion maintains the relative position and bonding pressure during sealing, then simultaneously releases both components to allow clean separation of the worked sheet without peeling or damage
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 solution prevents impairment of the worked sheet and its melt bonded part by ensuring proper separation and reducing sticking, thus maintaining the integrity and functionality of the sheet during and after the heat sealing process.
Implementation Method 1
by making the heated seal blocks approach each other in the state where the belt-shaped worked sheet has stopped and gripping and pressing the worked sheet from the top and bottom, the sheet is heat sealed (hot melt bonded)
Data Source
AI summary
Stoppers for preventing lifting of the worked sheet are comprised of two stoppers near the press and above the worked sheet at a predetermined space from the worked sheet, one of the stoppers arranged at an upstream side from the press and the other of the stoppers arranged at a downstream side from the press, whereby when the press seals the worked sheet and then moves upward, the preventive stoppers prevent the worked sheet from being lifted up.