Adjustment method for conveying printed matter by suction roller for continuous detection of printed matter
An adjustment method and technology of printed matter, which are applied in measuring devices, material analysis by optical means, instruments, etc., can solve the problems of unstable measured objects, difficult extinction monitoring, unstable local angles of paper, etc., and improve the reliability of quality inspection. performance and quality inspection efficiency, ensuring consistency and stability, and preventing inconsistencies in the state of scanning parts
Active Publication Date: 2016-04-20
WUHAN HONGZHICAI PACKAGING PRINTING
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Problems solved by technology
[0003] Existing laser paper extinction detection can only stay in the laboratory to detect samples, and when it is applied to the production line, it will face the instability and wrinkle of the measured object caused by vibration and paper movement during the continuous transmission of large quantities of laser paper. Problems such as pleats, uncertain positions, and unstable local angles of the paper cause inaccurate sampling and cannot be compared with standard samples, so it is difficult to continuously monitor extinction in actual production
[0004] In the process of solving this problem, it is found that one of the problems that limits the continuous transmission and detection speed of the paper is that in the process of rapid transmission, the paper may appear deflection in addition to the jumping phenomenon, so for the detection point of the continuous transmission of the paper to be inspected Stable and accurate need to give a specific solution
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[0025] The present invention is applied to the extinction detection device for continuously identifying the hue of laser printed matter. In order to realize continuous laser printing quality inspection, sufficient diffuse light and direct light sources are provided in the diffuse hemisphere, and at the same time, in order to ensure the consistency of the detection state of printed matter, use The printed matter that is fixed and tensioned by the suction roller ensures the consistency and stability of the scanned image, and prevents the inconsistency, inaccurate position, surface wrinkle, vibration and paper deflection of the scanned part of the printed matter in the process of batch continuous inspection The damage and other problems caused by the laser printing part and the non-laser printing part have greatly improved the image reproduction and clarity.
[0026] The following specifically introduces the extinction detection device corresponding to the continuous recognition o...
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The invention discloses an adsorption roller for continuous printed matter detection and an adjusting method for a conveyed printed matter. Angle sensors are embedded in adsorption roller bearing wheels; proximity sensors are installed on outer surfaces on two sides of a roller body; the angle sensors and the proximity sensors control electromagnetic valves to act by controllers and drivers which are arranged in the roller body; the adsorption roller is internally provided with a wireless communication module and a built-in battery; at least two annular electric conductive loops are embedded on the end surface at one side of the adsorption roller by an insulation band at intervals; paper is subjected to dynamic tensioning, absorption fixation, prefixing to releasing and single-side adsorption angle adjustment by feedback signals of the sensors. According to the invention, because continuous conveying stability is realized, detection of only samples in a laboratory is successfully expanded to continuous and comprehensive detection of printed matters, so that the quality detection reliability and quality detection efficiency of laser printed matters are improved greatly.
Description
technical field [0001] The invention relates to printing or optical detection equipment, in particular to an adjustment method for conveying printed matter by an adsorption roller for continuous detection of printed matter for continuous detection of printed matter. Background technique [0002] At present, in terms of packaging paper materials, laser paper printing is usually used to express colorful effects. The rainbow light effect contained in this kind of paper can reflect different rainbow lights when viewed from different angles. Printing on this kind of paper has Good visual expression, giving people a pleasing feeling. But it is the colorful effect of this laser that brings great difficulties to the printing hue detection, because the background color of this laser paper has a large difference when observed under different light sources, and this difference is under the interference of laser light. , It is easy to cause color cast of printed products. The existing...
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IPC IPC(8): G01N21/892G01N21/01
Inventor李晶陈锦新王建贾金平陈龙
OwnerWUHAN HONGZHICAI PACKAGING PRINTING