CN1593916A

CN1593916A - High speed printing method with ink quantity controlled on line

Info

Publication number: CN1593916A
Application number: CN 03126349
Authority: CN
Inventors: 王琪; 左仁杰; 刘五一; 刘凤祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-10
Filing date: 2003-09-10
Publication date: 2005-03-16

Abstract

The invention relates to the method of high-speed printing that can control and examine the amount of printing ink on line. By installing the device of examining the thickness without contacting and the device of optical examining system onto the high-speed printing machine, this method can control and examine the capacity of printing ink on line. When emerging the small deviation between existing amount of printing ink and its normal standard, the machine can adjust automatically into the normal standard, however, when it is short of or other troubles happen, the machine will alarm the printing machine stop to examine the machine. It has overcome the disadvantage that the existing technology can't control and examine the amount of printing ink on line completely, so the invention controls the outcome of waste product, having very good prospect of putting into industry.

Description

A kind of high speed printing processes of On-line Control quantity of ink

Technical field

The present invention relates to a kind of printing technology, relate in particular to a kind of high speed printing processes of On-line Control quantity of ink.

Background technology

Printing technology is to the control of quantity of ink at present, detecting is to rely on manually to detect mostly, development along with printing technology, printing machinery forward high speed, large scale development, print speed printing speed can reach 100～600 meters/minute, width can reach 1500mm, because print speed printing speed is very high, it is not satisfactory to rely on traditional macroscopic method that quality is detected effect, and naked-eye observation and densitometer to detect be to be completed for printing the quality of back by the manual detection printed matter at product, because the limitation that naked-eye observation and densitometer detect, in with batch printed matter, easily produce aberration, and can not onlinely in time pinpoint the problems, often when finding quality problems, just produced more waste product, even can produce ink leak and lack black problem, cause a large amount of materials, time waste especially aspect ticket and security printing, easily causes ticket information seriously to lack if lack China ink at the ticket key aspect, the consumer is caused bigger negative effect, having a strong impact on the production efficiency and the product quality of printing industry.For this reason, be badly in need of at present adopting by the ink usage in the computer On-line Control printing process so that existing printing technology is improved.

Summary of the invention

The object of the present invention is to provide a kind of high speed printing processes by computer On-line Control, detection printing-ink consumption, raising print quality.

For realizing purpose of the present invention, the invention technical scheme is as follows: realize in the following way: (1) at first carries out printing down, the accent machine is produced the standard specimen page; (2), as the standard printed data, set up the computer On-line Control, detect ink set by computer acquisition standard specimen page information; (3) start is printed, and computer prints out finished product by printing the ink supply amount with regulating relatively automatically of standard China ink amount.

The collection of product information in standard specimen page information and the printing process, one or more detection heads of installing previously by the collection position of high-speed press record, and detection head links to each other with computer; Detection head is measuring thickness device or measuring thickness device and the combining of optical detection apparatus; Measuring thickness device can use multiple non contact thickness gaging devices such as γ, δ, x light, laser, ultrasonic wave.Detection head is looked the printing width and is adopted fixed or horizontal movable type.This device becomes the central control system of online detection quantity of ink by computer system, to ink thickness and ink leak and lack China ink and detect respectively.It compares the data of measuring thickness device or optical detection apparatus input and the numerical value of standard specimen page, if compare above certain deviation with standard value, computer promptly provides adjusts instruction, the size of China ink amount is gone up in this instruction according to instruction adjustment by the last black micromatic setting of relevant colour cell, the dynamic equilibrium that keeps the printed matter quantity of ink makes with batch aberration to be stabilized in the permissible range.Lack China ink or ink leak if find printed matter, this situation occurring generally is because bigger fault causes, if printing ink was regulated for 5 seconds and still can't be dealt with problems, computer then can provide chimes of doom, computer screen provides the demonstration of printing abnormity point, machine check is closed in prompting, after fixing a breakdown, continues printing.

Beneficial effect of the present invention is: by computer controlled ink system preferably in the On-line Control high speed printing process with the China ink amount and onlinely carry out quality testing, can reduce with batch product aberration, reduce the generation of waste product, reduce production costs, increase work efficiency, increase economic benefit; Particularly, have more realistic meaning to the printing of ticket with lottery.

Description of drawings

Fig. 1 is the printing-flow figure of this invention

Fig. 2 is the computer monitoring system flow chart

The specific embodiment

For the present invention is better illustrated, illustrate below in conjunction with process chart.

Embodiment 1

The present invention is described in detail to be controlled to be example with the China ink amount in the general printed matter printing process:

At first do the various preparations of printing, printing down, last paper, last China ink, accent machine are produced the standard specimen page; Specimen page is after the client confirms, a cover measuring thickness device of installing previously by the collection position of high-speed press scans the standard specimen page, and the ink usage information on the specimen page sweeps computer as normal data, sets up the online detection of computer, control ink system.Measuring thickness device can use multiple sensitive non-contact thickness gauges such as γ, δ, x light, laser, ultrasonic wave, can scan fast at seal layer thickness data, and the data after the scanning are imported computer discern rapidly, contrast, probe is according to seal fabric width degree, can be one or more full-size scanning, also can be the scanning of emphasis position;

After the scanning of standard specimen page, open printed on line printing ink control system, the start printing, when the difference of quantity of ink and normal data amount surpassed predefined numerical value, for example 1% o'clock, printing machine can carry out fine adjustment automatically, made the China ink amount be tending towards normal; When occur lacking China ink or this class catastrophe failure of ink leak, through regulate invalid after, the equipment shutdown of can reporting to the police is in time handled by operating personnel.This is based on us and uses custom-designed computer software, adopt the method for normal data input and comparative analysis, if exceed certain deviation (setting value), provide alarm signal, satisfy the On-line Control ink usage of use non contact thickness gaging device and the requirement of printing quality.

Embodiment 2

The present invention is described in detail to be controlled to be example with the China ink amount in the ticket and security printing process:

At first do the various preparations of printing, printing down, last paper, last China ink, accent machine are produced the standard specimen page; Specimen page is after the client confirms, a cover measuring thickness device and the optical detector installed previously by the collection position of high-speed press scan the standard specimen page, ink usage information on the specimen page sweeps computer as normal data, sets up the online detection of computer, control ink system.Measuring thickness device can use multiple sensitive non-contact thickness gauges such as γ, δ, x light, laser, ultrasonic wave, can scan fast at seal layer thickness data, and the data after the scanning are imported computer discern rapidly, contrast, probe is according to seal fabric width degree, can be one or more full-size scanning, also can be the scanning of emphasis position; Optical detector is an optical scanner, it uses fixation of C CD probe, adopt the light source of stroboscopic lamp simultaneously as CCD, be primarily aimed in the printing key message for example, the number of invoice, Arabic numerals, denomination value etc. are monitored, and make to avoid when these information of printing because the generation of big numerical digit wrong number of invoice and lacking number problem takes place for printing or man-made fault, avoid producing wrong ticket, can increase work efficiency well and product quality.

After the scanning of standard specimen page, open printed on line printing ink control system, the start printing, when the difference of quantity of ink and normal data amount surpassed predefined numerical value, for example 1% o'clock, printing machine can carry out fine adjustment automatically, made the China ink amount be tending towards normal; When occur lacking China ink or this class catastrophe failure of ink leak, through regulate invalid after, the equipment shutdown of can reporting to the police is in time handled by operating personnel.This is based on us and uses custom-designed computer software, adopt the method for normal data input and comparative analysis, if exceed certain deviation (setting value), provide alarm signal, satisfy and use non contact thickness gaging device and the On-line Control ink usage of optical monitoring device and the requirement of printing quality.

Claims

1, a kind of high speed printing processes of On-line Control quantity of ink is characterized in that, realize in the following way: (1) at first carries out printing down, the accent machine is produced the standard specimen page; (2), as the standard printed data, set up the computer On-line Control, detect ink set then by computer acquisition standard specimen page information; (3) start printing, by regulating printing ink supply amount more automatically with standard China ink amount data, online detection, control printing process print out finished product by computer.

2, high speed printing processes as claimed in claim 1 is characterized in that, the collection of product information in standard specimen page information, the printing process, and the detection head collection that the one or more and computer of installing previously by the collection position of high-speed press is connected realizes.

3, high speed printing processes as claimed in claim 2 is characterized in that, detection head is non contact thickness gaging device or non contact thickness gaging device and the combining of optical detection apparatus; Detection head adopts fixed or horizontal movable type to be installed on the high-speed press.