3D Shaping Device Flat Screw Plasticizing Control

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Solution Overview

Problem

Existing three-dimensional shaping devices require manual adjustment of control data for precise shaping, leading to inefficiencies and a need for a simpler method to produce three-dimensional shaped objects with desired characteristics.

Innovation Solution

A method and device utilizing a plasticizing section with a rotating flat screw and barrel, where the shaping mode is selected to control the plasticizing process, including temperature settings and screw rotation speed, to produce plasticized material for precise three-dimensional object formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual adjustment of control data is performed to achieve precise shaping, then manufacturing precision is improved, but device complexity and operation difficulty increase

Engineering Contradiction:
Improveshaping precisionVSAvoidoperation simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent stores pre-optimized control data for the plasticizing section in a database, where each control data set corresponds to a specific shaping mode (e.g., high precision, high speed). The system automatically retrieves and applies the appropriate pre-optimized control data based on the selected shaping mode, eliminating the need for users to manually adjust control parameters while maintaining the desired precision characteristics.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system changes the operational parameters of the plasticizing section (such as temperature, screw rotation speed, and pressure) by automatically selecting from pre-optimized control data sets stored in the database. Each control data set contains specific parameter values optimized for particular shaping requirements, allowing the system to transition between different parameter configurations without manual intervention.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If manual trial productions are repeated to obtain desired characteristics, then manufacturing precision is improved, but loss of time increases

Engineering Contradiction:
Improveshaping precisionVSAvoidtrial production time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary optimization of control data for various shaping modes before actual production. Pre-optimized control data sets are pre-calculated and stored in a database, corresponding to different shaping requirements (precision mode, speed mode, etc.). This preliminary action eliminates the need for users to perform time-consuming trial productions, as the optimal control parameters are already prepared and can be immediately applied.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses copied pre-optimized control data from the database instead of performing new trial productions. Each control data set in the database is a copy of optimized parameters developed in advance, allowing users to simply select and apply the appropriate pre-optimized control data rather than repeating trial productions to achieve desired shaping characteristics.

Inventive Principle:
Principle #26Copying

3Manufacturing precision

If control data is finely adjusted to achieve desired characteristics, then manufacturing precision is improved, but productivity decreases

Engineering Contradiction:
Improveshaping precisionVSAvoidproduction efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent stores pre-optimized control data sets in a database that balance precision and productivity for different shaping modes. When a user selects a shaping mode, the system automatically copies the corresponding pre-optimized control data (including temperature, screw rotation speed, and pressure parameters) and applies it, eliminating the time-consuming process of manual adjustment while maintaining the desired precision characteristics.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system automatically changes control parameters by selecting from pre-optimized data sets rather than requiring manual fine-tuning. Each pre-optimized control data set contains parameter values that have been previously determined to achieve the desired balance between precision and production speed, allowing the system to switch between different parameter configurations instantly without reducing productivity.

Inventive Principle:
Principle #35Parameter changes

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

Enables the production of three-dimensional shaped objects with desired characteristics by simplifying the shaping process, allowing users to select modes for precision and time, stabilizing the ejection amount, and improving shaping precision without manual trial and error.

Implementation Method 1

a heating section configured to heat the material supplied between the groove forming surface and the opposing surface

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

a cooling section configured to cool the plasticizing section

Methodology Applied
Scientific EffectCooling: Cooling

Data Source

PatentUS20230166444A1Method for producing three dimensional shaped object and three dimensional shaping device
Publication Date: 2023.06.01 SEIKO EPSON CORP
  • US20230166444A1 patent drawing
  • US20230166444A1 patent drawing
  • US20230166444A1 patent drawing

AI summary

A method for producing a three dimensional shaped object includes a first step of receiving selection of a shaping mode of a three dimensional shaped object, a second step of plasticizing at least a portion of a material to form a plasticized material using a plasticizing section that includes a rotating flat screw and a barrel, the flat screw having a groove forming surface in which a groove is formed, the barrel having an opposing surface facing the groove forming surface and in which is formed a communication hole communicating with a nozzle, and a third step of ejecting the plasticized material from the nozzle toward a stage. In the second step, the plasticizing section is controlled in accordance with the shaping mode received in the first step.