Resin Molding Condition Control Using Sensor Feedback

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Solution Overview

Problem

Conventional resin molding systems require user-dependent manual adjustment of complex operating conditions, leading to inconsistent product quality due to varying user skill levels.

Innovation Solution

A resin molding system equipped with sensor units to detect foreign matters in the resin film, a search unit to find optimal operating conditions based on sensor feedback, and a setting unit to automatically adjust these conditions, ensuring consistent product quality regardless of user skill.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual adjustment of operating conditions is performed by users, then the system can be operated with simple controls, but product quality becomes inconsistent due to varying user skill levels

Engineering Contradiction:
Improvemanual operation simplicityVSAvoidproduct quality consistency
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The system automatically detects foreign matters in the resin film and adjusts operating conditions without requiring user expertise. The control unit autonomously optimizes extrusion apparatus parameters based on sensor feedback, enabling the system to serve itself rather than relying on manual user adjustment.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements a closed-loop control mechanism where sensor units continuously monitor foreign matter in the resin film, and the control unit uses this feedback information to automatically adjust operating conditions. This feedback loop ensures consistent product quality by dynamically responding to actual film conditions.

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If automated detection and adjustment systems are implemented, then product quality consistency is improved, but device complexity increases

Engineering Contradiction:
Improveproduct quality consistencyVSAvoidsystem structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The control unit serves multiple functions: it receives data from sensor units, analyzes foreign matter presence, determines optimal operating conditions, and adjusts apparatus parameters. This multi-functional design consolidates complex control tasks into a single integrated unit, reducing overall system complexity while maintaining high manufacturing precision.

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

Solution Approach 2:

The system replaces manual mechanical adjustment with automated electronic control. Sensor units electronically detect foreign matters, and the control unit electronically adjusts operating conditions, substituting complex manual mechanical operations with streamlined electronic systems that are easier to manage despite increased automation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If initial setting and visual checking are performed manually, then the system requires minimal automation infrastructure, but the process consumes significant user time and expertise

Engineering Contradiction:
Improveautomation infrastructureVSAvoidadjustment time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

Sensor units continuously provide real-time feedback on foreign matter in the resin film, eliminating the need for manual visual inspection. The control unit processes this feedback instantly and adjusts operating conditions automatically, significantly reducing the time required for setup and adjustment while removing dependency on user expertise.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-adjustment of operating conditions based on sensor data, eliminating the time-consuming manual process of initial setting and visual checking. The automated system independently optimizes parameters, freeing users from time-intensive adjustment tasks.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4706935A1Resin molding system, operating condition control method, and program
Publication Date: 2026.03.11 THE JAPAN STEEL WORKS LTD
  • EP4706935A1 patent drawingFigure 1
  • EP4706935A1 patent drawingFigure 2~3
  • EP4706935A1 patent drawingFigure 4

AI summary

The present invention stably sets a suitable operating condition for a resin molding system without depending on the skill of a user. A sensor unit that detects the state of a resin is provided to at least one of a plurality of devices constituting a resin molding system. A control device for the resin molding system retrieves an operating condition for the devices constituting the resin molding system on the basis of information output from the sensor unit, and sets the retrieved operating condition as a new operating condition. The specific manner in which a specific operating condition of a specific device is to be changed when the resin is in a specific state is set, for example, by a user.