Conveying Table Exhaust Hole Segmentation for Residual Pressure

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Solution Overview

Problem

Conventional electronic-component conveying apparatuses face issues with residual pressure causing unintentional dismounting of components due to incomplete air discharge, leading to reduced conveying speed and efficiency, especially when dealing with small components.

Innovation Solution

The workpiece conveying apparatus employs a design with a larger opening exhaust hole and a nozzle section to increase compressed gas flow rate, allowing for efficient dismounting of workpieces while minimizing residual pressure, and includes a vacuum system to maintain component position during conveyance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a small exhaust hole is used to handle small electronic components, then the apparatus can process smaller workpieces, but the air discharge becomes incomplete causing residual pressure

Engineering Contradiction:
Improveability to handle small electronic componentsVSAvoidresidual pressure causing unintentional dismounting
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The exhaust hole is divided into multiple smaller holes (first exhaust holes and second exhaust holes) with different functions. The first exhaust holes have smaller diameters suitable for dismounting small electronic components, while the second exhaust holes have larger diameters to ensure complete air discharge and prevent residual pressure. This segmentation allows the system to handle small components reliably without suffering from incomplete air discharge.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If compressed air is jetted through exhaust holes to dismount components, then dismounting is achieved, but residual pressure remains causing unintentional dismounting of subsequent components

Engineering Contradiction:
Improvecomponent dismountingVSAvoidunintentional dismounting due to residual pressure
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The exhaust system is segmented into first exhaust holes for dismounting components and second exhaust holes for discharging air. This functional separation ensures that the dismounting function and air discharge function are performed by different structures, allowing complete air discharge without causing unintentional dismounting of subsequent components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second exhaust holes act as an intermediary structure that facilitates complete air discharge from the through holes. By providing dedicated larger-diameter exhaust pathways, they serve as a mediator between the compressed air supply and the external environment, ensuring residual pressure is eliminated before the next component arrives at the dismounting position.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If the conveying table rotates continuously at high speed, then conveying efficiency is improved, but residual pressure from incomplete air discharge causes problems

Engineering Contradiction:
Improveconveying speedVSAvoidresidual pressure issues
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The exhaust hole system is segmented into first and second exhaust holes with different diameters and functions. The second exhaust holes with larger diameters enable rapid air discharge, allowing the conveying table to rotate continuously at high speed without residual pressure accumulating and causing reliability issues.

Inventive Principle:
Principle #1Segmentation

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 design enables faster operation, reduced risk of components being dismounted unintentionally due to residual pressure, and increased conveying speed and efficiency, particularly suitable for small electronic components.

Implementation Method 1

The conveying surface has vacuum recesses communicating with the through holes and connected to a vacuum suction source or the like, which serves to maintain positions of the electronic components during the conveyance.

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 2

The exhaust holes 103b, which open in the conveying surface 103a at positions where the electronic components 104 are to be dismounted, are connected to a compressed-air supplying hose 105. The pressure of the compressed air causes the electronic components 104 to move to the outside of the through holes 102a, whereby the electronic components 104 are dismounted.

Methodology Applied
Scientific EffectCompressed air: Pressure Increase

Data Source

PatentUS8051975B2Workpiece transfer apparatus and electronic component transfer apparatus
Publication Date: 2011.11.08 MURATA MFG CO LTD
  • US8051975B2 patent drawing
  • US8051975B2 patent drawing
  • US8051975B2 patent drawing

AI summary

A workpiece conveying apparatus for conveying a workpiece disposed in a through hole in a conveying table allows the workpiece to be reliably dismounted from the through hole using compressed gas, suppresses the workpiece from unintentionally jumping out because of residual pressure of the compressed air, and increases the conveying efficiency. In an electronic-component conveying apparatus, a conveying table is arranged to face a conveying surface of a conveying stage, with an electronic component disposed in a through hole in the conveying table. When the conveying table is rotated, the electronic component is conveyed. The conveying surface has an exhaust hole at a position where the electronic component is to be dismounted. The total area of the opening of the exhaust hole in the conveying table is larger than the area of the surface of the electronic component facing the conveying surface of the conveying stage.