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System and method for detecting surface quality of coin mold

A surface quality and detection system technology, applied in the field of coinage, can solve the problems of difficult measurement and evaluation, easy to be affected by human factors, low detection efficiency, etc., achieve fast and accurate image comparison processing, and facilitate consistency control , image acquisition accurate effect

Active Publication Date: 2013-01-09
SHANGHAI MINT +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, the detection of the surface quality of coin molds is mainly based on manual inspection, which is prone to quality risks of missed inspections, which ultimately affects the consistency of finished product quality
The existing problems are: due to the large labor intensity and low detection efficiency of the manual detection method, especially the pattern characteristics on the surface of the mold, its measurement and evaluation are difficult, and the detection process is easily affected by human factors, resulting in evaluation Poor standard consistency makes it difficult to meet the requirements of the modern mint industry for mold quality testing
Although there are many technologies at home and abroad that involve the detection of the surface quality of coins, none of them involve the detection of the surface quality of coin molds.

Method used

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  • System and method for detecting surface quality of coin mold
  • System and method for detecting surface quality of coin mold
  • System and method for detecting surface quality of coin mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] Taking the detection of circulation coin mold as an example

[0039] 1) Image detection

[0040] a) Preparatory work: determine the circulation coin mold to be tested, and store multiple standard images of the mold to be tested into the computer 4;

[0041] b) Configure the light source: match the corresponding light source bracket 14 according to the shape and position characteristics of the circulating coin mold to be detected;

[0042] c) Install the mold to be tested: move the mold station 12 to slide out from the mold rail 111 of the shell 11, place the front of the circulation coin mold to be tested in the mold station 12, and move the mold station in the opposite direction 12. Make it to enter the detection position for the circulation coin mold to be detected;

[0043] d) Adjusting the camera: adjust the screw 151 of the fine-tuning mechanism 15, through the meshing of the screw 151 and the fine-tuning nut 134, the camera bracket 13 is driven to slide on the c...

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Abstract

The invention discloses a system and a method for detecting surface quality of a coin mold. The system comprises a detector, a camera, a digital display dial indicator and a computer. The invention discloses a method for utilizing the system to detect the surface quality of the coin mold. The system and the method are applicable to the automatic detection of the surface quality of a circulation coin mold, a gold-silver coin mold and a gold-silver coin. The method comprises an image detection step and a geometric size detection step, so that the system and the method have advantages that defect characteristics are easy to capture, images are precise to collect and the contrast processing of the image is rapid and accurate. The error rejection rate is effectively reduced, the production efficiency is improved, the manmade error is reduced, and consistent control of the mold quality can be favored.

Description

technical field [0001] The invention relates to the technical field of coinage, uses an image comparison method to check the quality of coinage molds, and is a system and method for detecting the surface quality of coinage molds. Background technique [0002] In the prior art, the detection of the surface quality of coin molds is mainly based on manual inspection, which is prone to quality risks of missed inspections, which ultimately affects the consistency of finished product quality. The existing problems are: due to the large labor intensity and low detection efficiency of the manual detection method, especially the pattern characteristics on the surface of the mold, its measurement and evaluation are difficult, and the detection process is easily affected by human factors, resulting in evaluation The standard consistency is poor, and it is difficult to meet the requirements of the modern mint industry for mold quality inspection. Although there are many technologie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88
Inventor 吴琳琳宋金华李文军邵丽健张敏周洪国戴锦明吴福熔
Owner SHANGHAI MINT
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