Sheet Manufacturing Supply Unit With Detachable Rotating Container

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Solution Overview

Problem

Existing toner bottles for image forming apparatuses are complicated due to their multiple functions, leading to structural complexity.

Innovation Solution

A sheet manufacturing apparatus with a supply unit that includes a detachable container holding powdered and granular material, which is rotated by a motor to discharge the material, and a forming unit that mixes the discharged material with fibers to create a sheet.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a toner bottle is designed to perform multiple functions, then its functionality is improved, but its structural complexity increases

Engineering Contradiction:
ImprovefunctionalityVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The supply unit is divided into separate functional modules: a detachable container for storing powdered and granular material, a motor for rotation, and a discharge mechanism. This segmentation allows each component to perform its specific function independently, reducing overall structural complexity while maintaining versatility

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The supply unit is designed with universal applicability to handle various types of powdered and granular materials through a standardized container and motor assembly. The detachable container design allows the same supply unit structure to serve multiple purposes with different materials, achieving versatility without increasing structural complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If a container is rotated to discharge powdered and granular material, then material discharge efficiency is improved, but the need for additional discharge mechanisms increases structural complexity

Engineering Contradiction:
Improvematerial discharge efficiencyVSAvoiddischarge mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The container itself performs the discharge function through rotation, utilizing its own structure and movement to achieve material discharge without requiring separate complex discharge mechanisms. The rotation of the container automatically controls the discharge of powdered and granular material, simplifying the overall system

Inventive Principle:
Principle #25Self-service

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 simplifies the structure by detachably holding containers and using a motor to discharge materials, enabling efficient production of sheets from scrap paper through a dry process.

Implementation Method 1

a motor, and the motor rotates the container attached to the holding unit to discharge the powdered and granular material from the container

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

rotating a container configured to store powdered and granular material to discharge the powdered and granular material from the container

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP4640943A1Sheet manufacturing apparatus
Publication Date: 2025.10.29 SEIKO EPSON CORP
  • EP4640943A1 patent drawingFigure 1
  • EP4640943A1 patent drawingFigure 2
  • EP4640943A1 patent drawingFigure 3

AI summary

A sheet manufacturing apparatus includes: a supply unit that supplies powdered and granular material; and a forming unit that forms a sheet from fibers and the supplied powdered and granular material, the supply unit includes a holding unit that detachably holds a container configured to store the powdered and granular material, and a motor, and the motor rotates the container attached to the holding unit to discharge the powdered and granular material from the container.