Shelf Flatness Measurement Layout for Fast Four-Point Checks
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Solution Overview
Problem
Existing purge stockers require precise flatness measurement of four points on shelves to ensure proper nozzle contact, but current methods are time-consuming and labor-intensive.
Innovation Solution
A flatness measurement unit with a body frame and four contact sections, including two first and two second contact sections, positioned to ensure three-point contact for measurement, allowing gaps to be measured efficiently without full contact assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three-dimensional measurement is performed at all four predetermined points to measure flatness, then measurement precision is improved, but measurement time and labor increase significantly
Solution Approach 1:
The patent extracts only the necessary measurement function by using a dial gauge at a single predetermined point instead of performing three-dimensional measurements at all four points. The contact sections are designed to automatically identify and measure only the gap at the lowest point, extracting the essential measurement data while eliminating unnecessary measurement operations at other points.
Solution Approach 2:
The measurement unit performs self-positioning and self-measurement through its design. The contact sections are arranged and weighted so that the unit automatically positions itself on the shelf surface and identifies the lowest point without external intervention. The dial gauge automatically measures the gap at this identified point, eliminating the need for manual positioning and measurement at multiple points.
2Measurement precision
If manual three-dimensional measurement is performed at multiple points, then flatness can be accurately measured, but the operation becomes complex and labor-intensive
Solution Approach 1:
The measurement unit is designed to perform self-positioning and self-measurement. The contact sections are arranged and weighted so that the unit automatically positions itself on the shelf surface and identifies the lowest point without external intervention. The dial gauge automatically measures the gap at this identified point, eliminating the need for manual positioning and measurement at multiple points.
Solution Approach 2:
The patent replaces complex manual three-dimensional measurement operations with a simpler mechanical system. Instead of requiring manual measurement at multiple points, the design uses a weighted contact section arrangement that automatically identifies the lowest point through gravity and mechanical contact, which is then measured by a single dial gauge reading.
3Reliability
If contact sections are arranged to contact all four predetermined points, then complete measurement coverage is achieved, but the center of gravity positioning becomes complex
Solution Approach 1:
The contact sections are arranged asymmetrically with respect to the center of gravity. Two contact sections are positioned closer to the center of gravity than the other two, creating an asymmetric weight distribution. This asymmetric arrangement ensures that when the unit is placed on the shelf, gravity causes the unit to automatically position itself with the contact sections touching the shelf surface at the lowest point, eliminating the need for complex center of gravity positioning calculations.
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
Facilitates easy and time-saving flatness measurement on shelves by measuring gaps at second contact points, reducing labor and preventing damage, while ensuring reliable contact with nozzles.
Implementation Method 1
The center of gravity of the flatness measurement unit is positioned in an area containing the two first contact sections, among four areas defined by two diagonal lines each passing through the corresponding first contact section and the corresponding second contact section that are located diagonally
Data Source
AI summary
A flatness measurement unit is a flatness measurement unit to be placed on a shelf for measuring flatness relating to the degree of deviation from a state in which four predetermined points on the shelf are present on the same plane. The flatness measurement unit includes: a body frame; and four contact sections dispersedly disposed on the body frame and provided so as to be in contact with the respective four predetermined points on the shelf. The four contact sections include two first contact sections not located diagonally and two second contact sections other than the first contact sections. The center of gravity of the flatness measurement unit is positioned in an area containing the two first contact sections, among four areas defined by two diagonal lines each passing through the corresponding first contact section and the corresponding second contact section that are located diagonally.