Sheet Manufacturing Apparatus U-Shaped Layout for Compact Footprint

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Solution Overview

Problem

Conventional sheet manufacturing apparatuses based on dry methods are excessively long due to linear arrangement of processing units, making them unsuitable for installation in limited spaces.

Innovation Solution

The apparatus is redesigned with the raw material supplying unit and ejection unit positioned on one side, and processing units arranged in a configuration that allows the raw material to be supplied from below and processed in a U-shaped path, reducing the overall length and width, enabling more flexible installation in confined areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If processing units are arranged in a row with raw material supplied from one side and sheet ejected from the opposite side, then the manufacturing process can be performed sequentially, but the overall length of the apparatus becomes excessively long

Engineering Contradiction:
Improvesequential processing capabilityVSAvoidoverall apparatus length
Core Design Contradiction:
ProductivityVSLength of stationary object

Solution Approach 1:

The patent transitions from a linear arrangement of processing units to a two-dimensional layout where units are arranged in rows and columns. The raw material supplying unit and ejection unit are positioned on the same side, with processing units arranged in a U-shaped path, effectively utilizing vertical and horizontal spaces to reduce the overall apparatus length while maintaining sequential processing capability

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent implements a compact configuration where processing units are nested or closely integrated in a U-shaped arrangement. The first coarse crushing unit, defibrating unit, deposition unit, heating and pressing unit, and cutting unit are arranged in a space-efficient manner that allows the material flow path to be compact while maintaining all necessary processing functions

Inventive Principle:
Principle #7Nested doll (Nesting)

2Device complexity

If processing units are arranged in a row, then the manufacturing process flow is simplified, but the apparatus cannot be installed in limited indoor spaces

Engineering Contradiction:
Improveprocess flow simplicityVSAvoidinstallation space requirement
Core Design Contradiction:
Device complexityVSArea of stationary object

Solution Approach 1:

The patent reorganizes the processing units from a single-row linear arrangement to a multi-row two-dimensional layout. The U-shaped configuration allows the apparatus to fit within limited indoor spaces by utilizing both horizontal and vertical arrangements, reducing the overall footprint area while maintaining a simple and efficient material flow process

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 configuration allows for a more compact design, facilitating easier installation in indoor spaces by reducing the apparatus's length and width, thereby increasing installation flexibility and efficiency.

Implementation Method 1

a first coarse crushing section (12) that includes a first coarse crushing blade (121) configured to rotate, and coarsely crushes the raw material sheet (M1) supplied from the raw material supplying unit (11)

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

a defibrating unit (13) that defibrates the coarse crushed pieces (M2) produced by the first coarse crushing unit (12)

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 3

a heating and pressing unit (20) that applies heat and pressure to a deposited material (M8) produced on the deposition unit (30) for forming into a sheet (S)

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 4

a cutting unit (21) that cuts the sheet (S)

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS11834782B2Sheet manufacturing apparatus
Publication Date: 2023.12.05 SEIKO EPSON CORP
  • US11834782B2 patent drawing
  • US11834782B2 patent drawing
  • US11834782B2 patent drawing

AI summary

A sheet manufacturing apparatus includes: a raw material supplying section; a first coarse crushing section; a defibrating section; a deposition section; a heating and pressing section; a cutting section; and an ejection section.