Precision detection device and precision detection method of printing machine

A technology of precision detection and printing machine, applied in the general parts of printing machinery, printing machine, printing and other directions, can solve the problems of low work efficiency, low precision, low degree of automation, etc., to save time, improve adjustment accuracy, and degree of automation high effect

Inactive Publication Date: 2012-12-26
XIAN UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0008] The purpose of the present invention is to provide a printing machine precision detection device, which solves the problems of the existing pri

Method used

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  • Precision detection device and precision detection method of printing machine
  • Precision detection device and precision detection method of printing machine
  • Precision detection device and precision detection method of printing machine

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Embodiment Construction

[0033] The hardware structural part of the printing machine accuracy detection device of the present invention is formed by connecting an electronic detector 4 and a computer 5 .

[0034] refer to figure 1 Put the detection printing plate 1 into the printing machine 2, start printing, and the detection printing plate 1 is called the detection printing sheet 3 after printing, and the detection printing sheet 3 is obtained by the electronic detector 4. The image information is input into the computer 5, and the computer 5 pre-prints The installed analysis software completes the analysis calculation and obtains the accuracy detection result; then, according to the calculation result, the installation position of the corresponding components and mechanisms in the printing machine 2 is corrected until the printed detection sheet 3 meets the required requirements.

[0035] refer to figure 2 The image structure of the printing plate printed on the detection printing plate 1 of the ...

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Abstract

The invention discloses a precision detection device of a printing machine, comprising an electronic detection meter and a computer and further comprising a detection printing plate, wherein the electronic detection meter is connected with the computer; the structure of a printing plate image printed on the detection printing plate is formed by combining a square frame with four sign markers arranged in the frame; the structure of the electronic detection meter is that an observation window, an image collection window and a digital microscope are arranged at one side inside a shell of a detector; an LED (Light-Emitting Diode) array light source is arranged at the other side inside the shell of the detector; and scattering glass is arranged between the LED array light source and the image collection window. The invention further discloses a detection method for utilizing the device to detect the precision of the printing machine, comprising the following steps of: printing special detection marks on the printing machine to obtain detected printing sheets; continuously reading 100 detected printing sheets to process analyzed image information data; and finally, obtaining paper transferring and conveying precision of the printing machine. The device and the method, disclosed by the invention, have high precision and automation degree.

Description

technical field [0001] The invention belongs to the technical field of printing machine detection, and relates to a printing machine precision detection device, and also relates to a printing machine precision detection method using the device. Background technique [0002] The precision of the printing machine mainly includes two parameters: paper feeding accuracy and paper transfer accuracy. The precision of the printing machine directly affects the quality of the final printed matter, and is an important measurement index for printing machine assembly, debugging, machine overhaul and delivery. CY / T5-1999 stipulates the overprinting accuracy of lithographic printing, the allowable error of overprinting for fine prints is ≤0.10mm; the allowable error for overprinting for general printings is ≤0.20mm; the qualified inspection accuracy of printing machines is <=0.02mm. [0003] my country adopts the national standard JB / T5434-2004 sheet-fed lithographic printing machine to...

Claims

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Application Information

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IPC IPC(8): B41F33/00
Inventor 张海燕任玲辉徐卓飞
Owner XIAN UNIV OF TECH
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