Continuous Domed Paper Forming via Modular Die Sets
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for forming domed paper require large, heavy presses and intermittent die systems, which are costly, difficult to scale, and not feasible for smaller facilities, and struggle with continuous registration and efficient production due to the need for paper to stop and re-index, leading to increased production time and cost.
Innovation Solution
A continuous process using smaller, independently moving die sets that register with a moving substrate, allowing for continuous formation of domes without stopping, and utilizing a system with heated dies and auxiliary mechanisms for precise registration and actuation, enabling smaller, more economical presses that can operate in e-commerce or small distribution facilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If large presses are used to form domed paper, then forming capability is achieved, but press weight increases to 5-10,000 lbs and scalability becomes difficult
Solution Approach 1:
The patent divides the large press into multiple smaller modular pressing units, each capable of forming domes independently. This segmentation allows the system to achieve the required forming capability without needing a single large heavy press, improving scalability and reducing individual unit weight while maintaining overall production capacity.
Solution Approach 2:
The patent employs dynamically adjustable pressing units that can be positioned and activated as needed along the production line. This dynamic approach allows smaller presses to be used in sequence rather than requiring one large static press, enabling scalability and flexibility in facility design.
2Manufacturing precision
If paper is stopped and re-indexed for pressing, then registration precision is achieved, but production time increases
Solution Approach 1:
The patent implements a continuous pressing system where paper moves continuously through the forming process without stopping for re-indexing. Multiple pressing units are arranged along the paper path, allowing different sections to be pressed in sequence while the paper keeps moving, thereby maintaining registration precision while eliminating production delays.
Solution Approach 2:
The patent uses preliminary registration marks and positioning systems that prepare the paper for pressing in advance. This preliminary action ensures that when the paper reaches each pressing unit, it is already correctly positioned, eliminating the need for stopping and re-indexing while maintaining precision.
3Ease of manufacture
If large die presses are used, then forming capability is achieved, but system complexity increases requiring individual heating and cooling systems for each die
Solution Approach 1:
The patent designs universal pressing units that can be used across multiple positions in the production line. Each modular unit incorporates integrated heating and cooling capabilities, allowing the same design to be replicated throughout the system rather than requiring custom complex systems for each pressing position.
Solution Approach 2:
The patent combines heating and cooling systems into integrated modules within each pressing unit. This merging of functions reduces the overall system complexity compared to having separate independent systems for each die, while still providing the necessary thermal control for dome formation.
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 efficient, continuous production of domed paper with improved registration and reduced production time, allowing for scalable and cost-effective manufacturing of domed materials in smaller facilities, overcoming the limitations of traditional methods by using smaller, lighter presses and maintaining product quality.
Implementation Method 1
utilizing a system with heated dies and auxiliary mechanisms for precise registration and actuation
Data Source
AI summary
A process and system for making a domed product by forming domes or protrusions into a sheet. The process including: moving a die set comprising one or more domes or protrusions, wherein the die set selectively registers with the sheet; latching the die set to the sheet after the selectively registering; and pressing the one or more domes or protrusions of the die set into the sheet for a period to obtain the domed product, wherein the die set moves independently from the sheet prior to the latching.