Dry-Process Sheet Manufacturing With Interlocked Sealing Covers
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Solution Overview
Problem
Existing sheet manufacturing apparatuses, such as those described in JP-A-2011-149106, suffer from the issue of paper material scattering due to the hopper not being covered, leading to potential contamination and inefficiencies in the recycling process.
Innovation Solution
A storage section with a lid mechanism comprising an exterior cover and a sealing cover that interlock via biasing sections, ensuring the insertion port is tightly closed to prevent scattering and maintain humidity, utilizing a magnetic attraction and elastic members for secure sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hopper is left open for easy access and material supply, then the ease of operation is improved, but paper material particles scatter to the outside causing contamination and loss
Solution Approach 1:
The lid is divided into two distinct parts: an exterior cover that provides structural closure and a sealing cover that tightly seals the insertion port. This segmentation allows the exterior cover to remain accessible for operation while the sealing cover prevents paper material scattering through its tight-fitting design with sealing sections.
Solution Approach 2:
The sealing cover acts as an intermediary element between the open exterior cover and the storage chamber. It provides a tight seal at the insertion port while still allowing the exterior cover to be opened for material supply, thus mediating between accessibility and contamination prevention.
2Object-generated harmful factors
If a lid is added to cover the storage section, then paper material scattering is prevented, but the device complexity increases
Solution Approach 1:
By segmenting the lid into exterior cover and sealing cover components, the design achieves effective sealing without requiring a completely complex closed structure. The segmentation allows simple yet effective prevention of paper material scattering.
Solution Approach 2:
The sealing cover is nested within or integrated with the exterior cover structure. This nesting approach consolidates multiple functions into a compact arrangement, reducing overall device complexity while maintaining effective sealing capability.
3Object-generated harmful factors
If the sealing cover is made to tightly close the insertion port, then paper material scattering is prevented, but the ease of operation decreases
Solution Approach 1:
The segmentation of the lid allows the exterior cover to be designed for easy opening and closing operations, while the sealing cover maintains tight closure. This division separates the operational interface from the sealing function, resolving the contradiction between ease of operation and effective sealing.
Solution Approach 2:
The sealing cover serves as an intermediary that provides tight sealing without requiring the entire lid structure to be complex or difficult to operate. The exterior cover handles the operational aspect while the sealing cover handles the sealing aspect independently.
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 lid mechanism effectively prevents paper material scattering, maintains humidity, and enhances the efficiency of the recycling process by ensuring a controlled environment for paper storage and processing.
Implementation Method 1
a sealing cover (20) that tightly closes an insertion port (31) of the storage section (100)... with a biasing section (3) therebetween
Implementation Method 2
utilizing a magnetic attraction and elastic members for secure sealing
Data Source
AI summary
A sheet manufacturing apparatus includes a storage section that stores paper pieces, a processing section that uses the paper pieces as a raw material to manufacture recycled paper through a dry process, an exterior cover, and a sealing cover that tightly closes an insertion port of the storage section. The exterior cover and the sealing cover open and close in an interlocked manner.