Vertical Table Driving Device for Lamination Molding

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Solution Overview

Problem

Conventional lamination molding apparatuses face issues with material powder leakage into the internal mechanism, affecting the table driving device's accuracy and requiring large, complex dustproofing covers, which complicates design and increases size.

Innovation Solution

A lamination molding apparatus with a bucket to collect intruding material powder and a cover to dustproof the table driving device, where the linear actuator and guide are arranged along the vertical direction, allowing for a compact and simpler design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the table driving device uses a conventional configuration with slide base and feed screw connected by side surfaces, then highly accurate positioning is achieved, but the device becomes large and requires complex dustproofing covers

Engineering Contradiction:
Improvepositioning accuracyVSAvoidtable driving device size and cover complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent reorients the linear actuator and guide from horizontal connection to vertical arrangement. The guide is positioned above the linear actuator, with both components extending in the vertical direction. This dimensional change allows the components to be connected by their end surfaces rather than side surfaces, reducing the horizontal footprint and simplifying the overall device structure while maintaining positioning accuracy.

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

Solution Approach 2:

The patent divides the table driving device into distinct vertical segments: the guide positioned above, the linear actuator below, and the table on top. This segmentation allows each component to be optimized independently and simplifies the connection interfaces, reducing the need for extensive dustproofing covers while maintaining functional integrity.

Inventive Principle:
Principle #1Segmentation

2Reliability

If dustproofing covers are added to protect the table driving device from material powder, then the device is protected from failure and accuracy loss, but the apparatus size increases and design becomes more complex

Engineering Contradiction:
Improvetable driving device reliabilityVSAvoidcover design complexity and apparatus size
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

By arranging the linear actuator and guide vertically, the patent reduces the horizontal space required for dustproofing. The vertical configuration allows dustproofing covers to extend primarily in the vertical direction, reducing the overall apparatus footprint while still providing comprehensive protection against material powder intrusion.

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

Solution Approach 2:

The patent extracts the dustproofing function from a complex enclosing cover and implements it through simpler vertical extensions that follow the reoriented components. This extraction simplifies the cover design while maintaining effective protection of the table driving device from material powder.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If a gap is left between the table and powder holding walls for vertical movement, then the table can move freely, but material powder leaks out and intrudes into the internal mechanism

Engineering Contradiction:
Improvetable vertical movementVSAvoidmaterial powder intrusion
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a dustproofing cover as an intermediary element between the moving table and the stationary powder holding walls. This cover allows vertical movement of the table while preventing material powder from escaping through the gap and intruding into the internal mechanism, thus mediating between movement freedom and contamination prevention.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of manufacture

If the linear actuator and guide are arranged horizontally as in conventional devices, then the structure is straightforward, but the apparatus requires larger size and more complex dustproofing

Engineering Contradiction:
Improvestructural simplicityVSAvoidapparatus volume
Core Design Contradiction:
Ease of manufactureVSVolume of moving object

Solution Approach 1:

The patent transitions the linear actuator and guide from horizontal to vertical arrangement. This dimensional change reduces the horizontal volume occupied by these components, allowing for a more compact apparatus design while maintaining structural simplicity through the logical vertical stacking of functional elements.

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

Effectively prevents material powder from entering the internal mechanism, maintains accuracy, and allows for a more compact and simpler dustproofing design of the table driving device.

Implementation Method 1

a linear actuator for outputting linear motion

Methodology Applied
Scientific EffectLinear motion output: Linear Motor

Implementation Method 2

a guide for transmitting the linear motion to the table and moving the table along a vertical direction

Methodology Applied
Scientific EffectMotion transmission: Mechanical Force

Implementation Method 3

a bucket which is disposed under the table and stores the material powder falling from between the table and the powder holding walls

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS10792864B2Lamination molding apparatus
Publication Date: 2020.10.06 SODICK CO LTD
  • US10792864B2 patent drawing
  • US10792864B2 patent drawing
  • US10792864B2 patent drawing

AI summary

A lamination molding apparatus includes a table, powder holding walls, a table driving device, a bucket, and a cover. The powder holding walls surround the table and hold material powder together with the table. The table driving device includes a linear actuator for outputting linear motion and a guide for transmitting the linear motion to the table and moving the table in a vertical direction. The bucket is disposed under the table and stores the material powder falling from between the table and the powder holding walls. The cover surrounds the table driving device between the table and the bucket. At least one portion of the linear actuator and the guide surrounded by the cover or the bucket is arranged along the vertical direction.