Inflatable Bellows Surface Working for Die-Cutter Press Gaps
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Solution Overview
Problem
Die cutting machines face challenges in maintaining clean and smooth pressing surfaces due to wear and corrosion, especially when dealing with moisture-absorbing paperboards, which can lead to uneven surfaces and require frequent maintenance.
Innovation Solution
An apparatus with an inflatable bellows system that adjusts the distance between oppositely arranged surfaces, allowing for polishing, cleaning, or sanding without manual pressure, and can be adapted to various gaps between surfaces, using an inflation medium like compressed air to facilitate the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional metal platen are used for pressing surfaces, then the pressing surfaces can be maintained clean and smooth initially, but they are subject to corrosion from moisture and wear during production, requiring frequent maintenance
Solution Approach 1:
The patent employs disposable abrasive sheets and cleaning pads that are attached to the platen surfaces. These consumable components are replaced regularly to maintain pressing surface quality, eliminating the need for frequent maintenance of the metal platen itself. The abrasive sheets are discarded after use rather than reused, ensuring consistent performance without degradation from wear or corrosion.
2Productivity
If manual pressure is applied to polish both upper and lower surfaces simultaneously, then both surfaces can be worked on at the same time, but it is difficult to apply equal and appropriate pressure to each surface
Solution Approach 1:
The apparatus is divided into separate upper and lower working units, each with independent pressure application mechanisms. The upper unit includes an upper abrasive sheet holder and the lower unit includes a lower abrasive sheet holder, allowing each surface to be worked on independently with controlled pressure. This segmentation enables simultaneous operation while maintaining precise pressure control for each surface separately.
Solution Approach 2:
The apparatus employs adjustable and adaptable pressure application mechanisms that can dynamically respond to the specific requirements of each surface. The working units can be positioned and pressed with controlled forces, allowing operators to adjust pressure levels based on the condition and requirements of each platen surface being worked on.
3Device complexity
If the apparatus is designed to work with fixed gap between surfaces, then the structure can be simplified, but it cannot adapt to different sizes of gaps between opposite surfaces of pressing section
Solution Approach 1:
The apparatus employs adjustable positioning mechanisms that allow the upper and lower working units to be moved relative to each other, adapting to different gap sizes between opposite surfaces. The distance between the upper and lower abrasive sheets can be adjusted to match the specific gap requirements of different pressing section configurations, maintaining versatility without excessive structural complexity.
Solution Approach 2:
The apparatus is designed with universal components that can accommodate various gap sizes and pressing section configurations. The adjustable framework and positioning systems allow the same apparatus to work effectively across different die cutting machine models and pressing section sizes, providing multi-functionality without requiring multiple specialized devices.
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
The apparatus effectively maintains the smoothness and cleanliness of pressing surfaces by adjusting to different gaps and preventing corrosion, reducing maintenance needs and ensuring consistent quality in die cutting operations.
Implementation Method 1
an inflatable bellows movable between an inflated state and a deflated state by inflation with an inflation medium
Data Source
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AI summary
The present invention provides an apparatus for working oppositely arranged first and second surfaces of a pressing section. The apparatus comprises an upper working unit forming a top wall and an upper sidewall extending downwardly from the top wall; a lower working unit forming a bottom wall and a lower sidewall extending upwardly from the bottom wall; and an inflatable bellows movable between an inflated state and a deflated state by inflation with an inflation medium. The upper sidewall is arranged to guide the lower sidewall to thereby form an internal space enclosed by the top wall, the bottom wall, the upper sidewall, and the lower sidewall. The inflatable bellows is arranged in the internal space to facilitate variation of the distance between the top wall and the bottom wall during relative movement between the upper sidewall and lower sidewall by inflation of the inflatable bellows.