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Online quality detection system for printed matter

A detection system and printed matter technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of large waste and defective products, achieve the effect of reducing material waste, reducing labor demand, and improving production efficiency

Inactive Publication Date: 2014-07-30
昆明瑞丰印刷有限公司
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AI Technical Summary

Problems solved by technology

In high-speed printing, the existence of defects will inevitably lead to a large number of waste and defective products. In order to reduce production costs, improve enterprise productivity and reduce material waste, enterprises need to use online quality inspection technology to measure in real time

Method used

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  • Online quality detection system for printed matter
  • Online quality detection system for printed matter

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Embodiment Construction

[0018] An online quality inspection system for printed matter, the system is composed of 3CCD camera, LED-array light source, zoom lens, MV-600 high-speed / high-precision industrial image acquisition card, PC platform hardware and image processing software.

[0019] This system uses 3CCD cameras instead of human eyes to take pictures. Specific features: (1) Definition: CCD (Charge Coupled Device, Change Coupled Device) is a semiconductor device that can convert optical images into digital signals. 3CCD, as the name suggests, is a camera using three CCDs. (2) Composition and function: CCD is composed of one or more cameras and lenses, and this system is composed of two cameras and lenses, which are used to shoot the printed matter to be tested. 3CCD uses 3 CCDs to convert red, green, and blue signals respectively, and the captured images are more natural in terms of color reproduction than single-chip CCDs, and their brightness and clarity are also better than single-chip CCDs. ...

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Abstract

The invention relates to an online quality detection system for printed matter. The system consists of a 3CCD camera, an LED-array light source, an MV-600 high-speed / high-accuracy industrial image acquisition card and a computer host with a PC (Personal Computer) and image processing software. The online quality detection system is applied to online quality detection in online intaglio printing and online flexography of roll paper in cigarette packet production enterprises, and batches of defective products with shape defects and color defects can be avoided in cigarette packet printed matter. Moreover, hardware is not in contact with the printed matter during online detection, so that the quality of the printed matter is not lowered. By the online quality detection system, the problems of lagging of detection time and insufficient principle basis of a conventional subjective visual observation method, density detection method and chromaticity detection method are solved, the production efficiency is increased, material waste is reduced, and the demand of labor force is lowered.

Description

technical field [0001] The invention relates to the field of quality detection of printed matter, in particular to an online quality detection system of printed matter. Background technique [0002] With the rapid development of the economy, people's living standards continue to improve, and their pursuit of quality has gradually improved. Reflected on the cigarette label, it is reflected in the diversification of cigarette pack carton technology, high-end product forms and strict quality requirements. The printing process of cigarette labels is becoming more and more complex, and the quality and fineness requirements are getting higher and higher. The limitations of printing enterprises in quality control need to be resolved urgently. [0003] Traditional detection methods are easily affected by observers' experience, psychological and physiological factors, and have poor stability and accuracy. The detection time lag is large, and there are often tens of thousands of de...

Claims

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Application Information

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IPC IPC(8): G01N21/898
Inventor 李海山蒋志辉王访平
Owner 昆明瑞丰印刷有限公司
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