Transparent Pocket Tray for Multi-Surface Goods Inspection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing appearance inspection methods for goods with differing front and back sides and limited contact areas require dedicated fixtures and multiple inspection environments, making them inefficient for collective inspection of multiple objects.
Innovation Solution
An appearance inspection method using a planar tray with transparent pockets and multiple cameras to image and inspect the front, back, and side surfaces of goods collectively, without requiring direct contact or repositioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a to-be-inspected object is transported and imaged while slipping down on a transport path, then the inspection can be performed without dedicated fixtures, but the method cannot accommodate objects with limited contact areas and differing front/back sides
Solution Approach 1:
The transport path is segmented into multiple inclined sections with different angles, allowing the to-be-inspected object to be imaged at multiple positions and orientations during its descent. This enables comprehensive inspection of objects with limited contact areas without requiring dedicated fixtures for each object type.
Solution Approach 2:
The inspection system transitions from a single-plane imaging approach to a multi-dimensional approach by capturing images at various angles and positions along the inclined transport path. Multiple cameras are positioned to image the object from different perspectives as it moves through the inspection zone.
2Measurement precision
If four mirrors are disposed to enclose a to-be-inspected object for simultaneous inspection of upper surface and side surfaces, then comprehensive inspection is achieved, but dedicated inspection stages and multiple identical environments are required
Solution Approach 1:
The complex mirror enclosure system is replaced by extracting only the essential imaging function. Instead of using four mirrors to reflect images to a single camera, the system uses multiple cameras positioned to directly capture images of the object's surfaces during transport, eliminating the need for dedicated inspection stages.
Solution Approach 2:
The inclined transport path serves multiple functions: it transports the object through the inspection zone, positions the object at various angles for imaging, and enables comprehensive surface inspection without requiring separate dedicated inspection environments. The same transport mechanism facilitates both movement and inspection.
3Productivity
If multiple identical inspection environments are provided to simultaneously inspect multiple to-be-inspected objects, then inspection efficiency is improved, but the system requires dedicated fixtures and cannot adapt to different product shapes
Solution Approach 1:
Multiple inspection functions are merged into a single integrated system. The inclined transport path combines object transport, positioning, and multi-angle imaging capabilities in one continuous process, allowing multiple objects to be inspected simultaneously without requiring separate dedicated inspection environments for each object type.
Solution Approach 2:
The system transitions from static dedicated inspection fixtures to a dynamic inclined transport path that continuously moves objects through the inspection zone. This dynamic approach allows the same system to accommodate various object shapes and sizes by adjusting the transport and imaging parameters rather than requiring fixed dedicated fixtures.
Data Source
AI summary
This appearance inspection method for goods is on a to-be-inspected object including: a planar tray having a front surface provided with colorless and transparent pockets each of which having a support that supports the to-be-inspected object through contact with the to-be-inspected object so as to extend along an outer periphery of the to-be-inspected object, the pocket having a space formed in an area in which no contact with the to-be-inspected object occurs; first cameras being capable of imaging the to-be-inspected objects from the front surface side and the back surface side of the tray; and a second camera capable of imaging the to-be-inspected objects from four side surfaces other than the front surface and the back surface. The to-be-inspected objects are imaged from the front surface and the back surface of the tray by the first cameras and imaged from the four side surfaces by the second camera.