Surface quality on-line detection system for coin finished goods
A surface quality and detection system technology, applied in the direction of optical testing flaws/defects, etc., can solve the problems of high leakage and false rejection rate, inability to realize real-time control of continuous rejects, inability to accurately capture coin feature defects, etc., so as to reduce false rejects. efficiency, ease of capture, improved accuracy and labor productivity
Active Publication Date: 2011-07-20
CHINA BANKNOTE PRINTING & MINTING +1
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Problems solved by technology
[0002] At present, in the coinage industry, only the quality of the flat cake of the coin is automatically detected, and the quality of the finished coin is mainly completed by manual inspection. Now there is also a bright field coaxial light source to automatically detect the surface quality of the finished coin, but This single bright field detection device cannot realize real-time control of continuous waste products in production, and it cannot accurately capture some characteristic defects of coins, which has certain limitations, and the rate of missed waste and false waste is relatively high
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Embodiment 1
[0019] Referring to accompanying drawing 1~2, the present invention is formed the transmission belt 3 of " 0 " shape loop by the large and small drive wheel 1,9 that is arranged on the frame 19, is formed C by drive wheel 2,12,17,18,20 The conveyer belt 11 of shape loop, the recess of C-shaped loop conveyer belt 11 is included in one end of " 0 " shape loop conveyer belt 3 and constitutes turning mechanism 10, and conveyer belt 3 one end is provided with centrifugal rotating disk 8, and the straight line of conveyer belt 3,11 A bright field detector 5 and a dark field detector 4 are arranged in turn on the conveying section, a slideway 13 is provided between the centrifugal turntable 8 and the conveyor belt 3, and a collection box for defective products is provided at the lower part of the conveyor belts 3 and 11 16. The programmable controller 14 is arranged on one side of the turning mechanism 10. The dark field detector 4 and the bright field detector 5 are composed of an i...
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The invention discloses an online detection system for the surface quality of a coin finished product, which comprises a group of 'O'-shaped conveyer belt which is formed by two driving wheels, and a group of 'C'-shaped conveyer belt which is formed by driving wheels, wherein the 'C'-shaped conveyer belt is winded on one end of the 'O'-shaped conveyer belt to form a turnover mechanism. The onlinedetection system for the surface quality of the coin finished product is characterized in that one end of the 'O'-shaped conveyer belt is provided with a centrifugal turntable; bright field detectorsand dark field detectors are arranged on linear conveying sections of two conveyer belts respectively; a slideway is arranged between the centrifugal turntable and the 'O'-shaped conveyer belt for connection; lower parts of the two conveyer belts are provided with defect ware collecting boxes; and one side of the turnover mechanism is provided with a programmable controller. The online detection system for the surface quality of the coin finished product adopts bright and dark composite fields to automatically detect the quality of the coin finished product, is easy to catch the characteristics and the defects of the coin, effectively reduces the rejection rate, has the continuous waste automatic alarm and stop function which is linked with an embossing press, performs real-time automaticdetection and control on the quality of online products, and greatly improves the detection accuracy and the labor productivity.
Description
technical field [0001] The invention relates to the technical field of coin manufacturing, in particular to an online detection system for the surface quality of finished coin products. Background technique [0002] At present, in the coinage industry, only the quality of the flat cake of the coin is automatically detected, and the quality of the finished coin is mainly completed by manual inspection. Now there is also a bright field coaxial light source to automatically detect the surface quality of the finished coin, but This single bright field detection device cannot realize real-time control of continuous waste products in production, and it cannot accurately capture some characteristic defects of coins, which has certain limitations, and the rate of missed waste and false waste is relatively high. Contents of the invention [0003] The purpose of the present invention is to provide a coin surface quality on-line detection device for the deficiencies in the prior art....
Claims
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IPC IPC(8): G01N21/89
Inventor 张勃周建栋戴锦明
Owner CHINA BANKNOTE PRINTING & MINTING