Sheet Manufacturing Drying Control to Prevent Rust and Contamination

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Solution Overview

Problem

Sheet manufacturing apparatuses face issues with rust formation and biological contaminant proliferation due to humidity when manufacturing is stopped, as seen in paper processing apparatuses using water.

Innovation Solution

A control method involving a stop signal to halt manufacturing and a drying step using blowers to dry specific areas of the apparatus, controlled by a computer system to reduce humidity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the sheet manufacturing apparatus is stopped after production, then energy consumption is reduced, but humidity accumulates causing rust and biological contamination

Engineering Contradiction:

Improveenergy consumptionVSAvoidhumidity

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The control section activates the blower to dry the predetermined area before the apparatus is fully stopped. This preliminary drying action removes humidity that would otherwise accumulate during the stop period, preventing rust and biological contamination while allowing the apparatus to remain stopped for energy conservation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The blower operates periodically - running during the drying phase after stop signal reception, then stopping when drying is complete. This periodic operation pattern allows humidity removal when needed while minimizing energy consumption during extended stop periods.

Inventive Principle:

Principle #19Periodic action

2Object-affected harmful factors

If the blower operates continuously to maintain low humidity, then rust and contamination are prevented, but energy consumption increases

Engineering Contradiction:

Improvehumidity controlVSAvoidenergy consumption

Core Design Contradiction:

Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

Instead of continuous operation, the blower performs a concentrated drying action immediately after receiving the stop signal. This preliminary drying phase reduces humidity to acceptable levels before the apparatus stops, eliminating the need for continuous blower operation and associated energy consumption.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The control section automatically manages the drying process by detecting the stop signal and activating the blower accordingly. The system serves itself by autonomously determining when drying is needed and when it can be stopped, optimizing the balance between humidity control and energy usage without manual intervention.

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

Reduces the likelihood of rust and biological contamination by effectively drying the apparatus after stopping production, while conserving energy by only drying when necessary.

Implementation Method 1

a drying step of drying a predetermined area of the sheet manufacturing apparatus by controlling a blower of the sheet manufacturing apparatus

Methodology Applied

Scientific EffectAir flow:

Data Source

PatentUS12398514B2Control method for sheet manufacturing apparatus

Publication Date: 2025.08.26 SEIKO EPSON CORP

AI summary

A control method for a sheet manufacturing apparatus includes a stop signal input step of inputting, to the sheet manufacturing apparatus manufacturing a sheet, a stop signal stopping manufacturing of the sheet and a drying step of drying a predetermined area of the sheet manufacturing apparatus by controlling a blower of the sheet manufacturing apparatus after the stop signal input step.