CN109353118A - It is a kind of for detecting the multi-functional sets of color patches of printing registration deviation - Google Patents
It is a kind of for detecting the multi-functional sets of color patches of printing registration deviation Download PDFInfo
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- CN109353118A CN109353118A CN201811448232.8A CN201811448232A CN109353118A CN 109353118 A CN109353118 A CN 109353118A CN 201811448232 A CN201811448232 A CN 201811448232A CN 109353118 A CN109353118 A CN 109353118A
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- 230000005622 photoelectricity Effects 0.000 claims abstract description 43
- 238000011179 visual inspection Methods 0.000 claims description 40
- 230000005611 electricity Effects 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 10
- 210000004209 hair Anatomy 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000003786 synthesis reaction Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 11
- 239000003086 colorant Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 17
- 239000004744 fabric Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004587 chromatography analysis Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention discloses a kind of for detecting the multi-functional sets of color patches of printing registration deviation, belongs to printing machinery automatic control technology field.Aiming at the problem that can not carrying out register detection after current photoelectricity class colour code is changed to image class auto-alignment system, propose a set of multi-functional sets of color patches, the printing house that there is image class colour code automatic control of registration accurately system, it only needs the first color printing plate in a set of original photoelectricity class colour code printing plate being changed to multi-functional sets of color patches of the invention, the primary colors mark of remaining printing plate remains unchanged, a full set of printing block need not be changed, the expense of replacement printing plate is saved, be conducive to the popularization of image class colour code automatic control of registration accurately system, facilitated technique upgrading.
Description
Technical field
The invention belongs to printing machinery automatic control technology fields.
Background technique
In printing color pattern, pattern is assigned in multiple printing plates by different colours, is successively printed onto printable fabric
Upper (such as Fig. 1).An accurate complete pattern is capable of forming when in order to guarantee successively to print, it is necessary to by colour code or sets of color patches
Detect printing registration deviation.It is current mainly have using on the printer for the colour code of registering system detection error both at home and abroad it is two big
Class:
The first kind is photoelectricity class colour code, and this colour code is generally in the shape of bar shaped mark, triangle mark or trapezoidal mark, see Fig. 2,
Fig. 3.Such as: a kind of three label printing plate group CN2905434Y, double end register sets of color patches CN103802449A of printing machine register control
Deng；Pattern was successively printed on printing together with corresponding colour code in printing by the first color printing plate, the second color printing plate ...
On material, two adjacent colour code distances have the gauged distance (such as 20mm) of setting in every group of colour code, are examined using photoelectric sensor
Two adjacent colour code distances are surveyed, are compared with gauged distance, the control of automatic printing register can be realized in deviation.
The shortcomings that photoelectricity class colour code is can only to be printed on printable fabric edge, to reserve the material side (5- for being printed on colour code
10mm), material sideline judge must be cut away in later process, to generate waste material, is wasted huge.
Second class is image class colour code, based on digital image processing techniques, using the camera shooting dedicated image class color of machine testing
Mark is to detect printing registration deviation.Image class colour code is mostly dot matrix, circle or circular arc type etc., sees Fig. 4.The advantages of image class colour code
It is that can be printed on not the blank position for influencing printing effect, is not take up rim charge, waste material, save the cost will not be generated.
Aforementioned two classes colour code compares, since image class colour code is to be not take up rim charge, no based on digital image processing techniques
Waste material is generated, there is biggish economic benefit, so having become the development of printing industry auto-alignment system using image class colour code
Trend.However, a set of printing plate of multicolour pattern printing is made of multiple printing plates, if printing house upgrades to image class color
Target detection system, the printing plate for being largely exclusively used in photoelectricity class colour code stored for many years cannot reuse, and all printing plates are all
It needs to make a plate again, this will increase very high plate change cost, also reduce the wish of printing house's replacement sophisticated equipment, hinder row
Industry technological progress.
Summary of the invention
In order to overcome the above problem, the present invention provides a kind of for detecting the multi-functional sets of color patches of printing registration deviation.
The multi-functional sets of color patches cannot be only used for the automatic control of registration accurately system of the photoelectric sensor detection of photoelectricity class colour code, can also be with
The automatic control of registration accurately system of camera shooting machine testing for image class colour code, such printing house is by original photoelectricity class colour code
When detection system upgrades to the detection system of image class colour code, original printing plate still can be used, reduce printing house's replacement
The cost of sophisticated equipment is more conducive to the popularization and application of image class detection system.
The technical solution adopted by the present invention to solve the technical problems is:
Multi-functional sets of color patches of the invention is made of calibration point, addressing label and photoelectricity class colour code；
Wherein, the addressing is labeled as the relatively-stationary dot in position, line segment or rectangle, and the addressing marks setting
On the first color printing plate, for marking position of the sets of color patches on printing plate, provide by the position of altimetric image；
The photoelectricity class colour code can be bar shaped mark, triangle mark or trapezoidal mark；The photoelectricity class colour code is according to print
The color sequences of brush are separately positioned on each printing plate；
When photoelectricity class colour code is bar shaped mark, the calibration point is two dots or line segment near bar shaped mark；
When photoelectricity class colour code is triangle mark or trapezoidal mark, the calibration point is located at triangle mark or three angles of trapezoidal mark are attached
Three close dots or line segment, the position between each dot or line segment are relatively fixed；The calibration point is arranged in the first color printing plate
On, effect is to provide benchmark when carrying out image measurement for other coloured light electricity class colour codes printed later；
The multi-functional sets of color patches further includes single plate visual inspection line and comprehensive visual inspection line:
The single plate visual inspection line is arranged on the first color printing plate, for other coloured light electricity class colour code printing deviations of visual inspection and
Effect, shape can be right-angle line, cross hairs or multiple line segments composition；
The synthesis visual inspection line is arranged on the first color printing plate, and one and first is formed respectively on other printing plates
The visual inspection line of synthesis visual inspection line same shape on color printing plate, when printing with the synthesis visual inspection line phase mutual respect on the first color printing plate
It closes, effect is that the register partial difference printed to front carries out comprehensive visual inspection, and shape can be right-angle line, cross hairs or more
A line segment composition；
The single plate visual inspection line and comprehensive visual inspection line are located at the edge of other coloured light electricity class colour codes after the first color.
The photoelectricity class colour code is longitudinal arrangement respectively and transversely arranged there are two types of set-up mode in printing；
When photoelectricity class colour code is longitudinal arrangement, addressing label is located at the top of the photoelectricity class colour code of the first color.
When photoelectricity class colour code is transversely arranged, addressing label is located at the top or left end of the first coloured light electricity class colour code.
The calibration point is located at the symmetric position of the upper and lower two sides after the first color near other coloured light electricity class colour codes；
Alternatively, the calibration point may be alternatively located at the same side after the first color near other coloured light electricity class colour codes.
Essence of the invention be can only with photoelectric sensor detect colour code change into can with camera shooting machine testing figure
As class colour code, to achieve the purpose that be measured with based on digital image processing techniques；The present invention expands the detection of image class
Systematic difference range has extensive practical value in the automatic control of registration accurately of the printing machines such as intaglio plate, soft version, rotation, tool
There are high economic benefit and social effect.
The beneficial effects of the present invention are:
The printing house that there is image class colour code automatic control of registration accurately system, it is only necessary to by a set of (N number of) original photoelectricity
The first color printing plate in class colour code printing plate is changed to multi-functional sets of color patches of the invention (not including digital in figure see Fig. 8), remaining N-
The primary colors mark of 1 printing plate remains unchanged, it is not necessary to change a full set of printing plate, save the expense of N-1 printing plate of replacement.
Detailed description of the invention
Fig. 1 is chromatic printing equipment printing process schematic diagram of the present invention.
Fig. 2 is photoelectricity class sets of color patches longitudinal arrangement schematic diagram.
Fig. 3 is the transversely arranged schematic diagram of photoelectricity class sets of color patches.
Fig. 4 is image class sets of color patches schematic diagram.
Fig. 5 is one of the multi-functional sets of color patches schematic diagram of bar shaped mark, triangle mark of longitudinal arrangement of the present invention.
Fig. 6 is the two of the multi-functional sets of color patches schematic diagram of bar shaped mark of longitudinal arrangement of the present invention.
Fig. 7 is the transversely arranged bar shaped mark of the present invention, the multi-functional sets of color patches schematic diagram of triangle mark.
Fig. 8 is multi-functional the first color of the sets of color patches printing plate schematic diagram of the present invention.
Fig. 9 is the printing process schematic diagram of the present invention the first color printing plate of change.
Figure 10 is a full set of printing process schematic diagram made a plate again of the present invention.
Figure 11 is the different pattern schematic diagrames of multi-functional sets of color patches of the present invention.
Figure 12 is suitable for multi-functional sets of color patches video camera inspection software flow chart of the present invention.
Figure 13 is suitable for multi-functional sets of color patches video camera assay device structures schematic diagram of the present invention.
Figure label is described as follows: 1- photoelectricity class colour code, 2- addressing label, 3- calibration point, the comprehensive visual inspection line of 4-, 5- single plate
Visual inspection line, 6- printable fabric, 7- roller platen, 8- printing plate, 9- video camera (photoelectric sensor), tablet computer 10, controller 15 are handed over
Change planes 16, host 17, display 18.
Specific embodiment
As shown in figure 5, the multi-functional sets of color patches (a) and sets of color patches (b) for detecting printing registration deviation include: each print
Photoelectricity class colour code (11a, 12a, 13a, 14a), (11b, 12b, 13b, 14b) of same shape in version, seeking on the first color printing plate
Location mark (21,22), calibration point (31a, 32a ..., 36a), (31b, 32b ..., 39b), comprehensive visual inspection line (41a, 42a,
43a), (41b, 42b, 43b), single plate visual inspection line (51b, 52b, 53b).
Wherein, on each existing printing plate, be formed with same shape photoelectricity class colour code (11a, 12a, 13a, 14a),
(11b, 12b, 13b, 14b), they are the special marker of photoelectricity class detection.When photoelectricity class detection system upgrades to the detection of image class
When system, it is only necessary to while retaining original photoelectricity class colour code (11a, 11b) on the first color printing plate, then make addressing label
(21,22), calibration point (31a, 32a ..., 36a), (31b, 32b ..., 39b), comprehensive visual inspection line (41a, 42a, 43a),
(41b, 42b, 43b) and single plate visual inspection line (51b, 52b, 53b), the 2nd to n-th printing plate former photoelectricity class colour code remain unchanged.
Fig. 9 is the printing process schematic diagram of the present invention the first color printing plate of change, be formed on the first color printing plate " calibration point ",
" addressing label ", " single plate visual inspection line " (right-angle line), " comprehensive visual inspection line " (cross hairs) and " photoelectricity class colour code ", the 2nd to N
It is only formed on color printing plate " photoelectricity class colour code ", diagram gives the 1st sets of color patches printing plate effect picture printed to N color.
Figure 10 is a full set of printing process schematic diagram made a plate again of the present invention, is applicable to a full set of new print made a plate again
The multi-functional sets of color patches of map brushing sample, be formed on the first color printing plate " calibration point ", " addressing label ", " single plate visual inspection line " (right-angle line),
" comprehensive visual inspection line " (cross hairs) and " photoelectricity class colour code ", on the 2nd to N color printing plate all design have " photoelectricity class colour code " and
" visual inspection line " (cross hairs), the 2nd to N color printing plate " cross hairs " respectively with " comprehensive visual inspection line " (ten on the first color printing plate
Wordline) it coincides, effect is that the printing registration deviation printed to front carries out comprehensive visual inspection.Diagram give the 1st to
The sets of color patches printing plate effect picture of N color printing.
Multi-functional sets of color patches of the present invention, photoelectricity class colour code can be bar shaped mark, triangle mark or trapezoidal mark, phase similar shape
Walk to expect that direction can be realized in vertical or horizontal arrangement in the photoelectricity class colour code edge of shape.Fig. 5 (a), the bar shaped that (b) is longitudinal arrangement
Mark, the multi-functional sets of color patches of triangle mark, Fig. 6 are the multi-functional sets of color patches of slotting mark formula bar shaped mark of longitudinal arrangement, and Fig. 7 (a), (b) are
The multi-functional sets of color patches of transversely arranged bar shaped, Fig. 7 (c), (d) are transversely arranged triangle multifunction sets of color patches.Triangle mark
Or trapezoidal target acute angle can be any angle, such as 30 degree or 45 degree, see Figure 11 (a), (b)；Triangle mark or trapezoidal mark are straight
The arm of angle can according to need in the horizontal direction or vertical direction is overturn, and such as Figure 11 (c), (d), the above-mentioned type is not limited to Figure 11 institute
Show.
The multi-functional sets of color patches, when longitudinal arrangement, addressing label (21,22) is located at the first coloured light electricity class colour code
The top of (11a, 11b) does not influence the position of photoelectric sensor detection close to one end of the photoelectricity class colour code.
The multi-functional sets of color patches, when transversely arranged, addressing label (21,22) is located at the first coloured light electricity class colour code
The top or left end of (11a, 11b) do not influence the position of photoelectric sensor detection.
The multi-functional sets of color patches, addressing label (21,22) can according to need in the horizontal direction or vertical direction is turned over
Turn, sees Figure 11 (e).
The multi-functional sets of color patches, addressing label (21,22) are not limited to three dots, can be designed as convenient for machine vision
The figure of the other shapes of identification, such as line segment or rectangle.
The multi-functional sets of color patches, calibration point (31a, 32a ..., 36a) are located at the 2nd to N coloured light electricity class colour code
The symmetric position of the upper and lower two sides of (12a, 13a, 14a) nearby, the position cannot influence the detection of photoelectric sensor.
Calibration point is not limited to circle dot mode, or line segment formula.As in Fig. 5 (a), (b) calibration point (31a,
32a ..., 36a, 31b, 32b ..., 39b) be circle dot mode, the calibration point in Fig. 7 (a) is line segment formula.
The multi-functional sets of color patches, comprehensive visual inspection line (41a, 42a, 43a), (41b, 42b, 43b) are located at the 2nd to N color
The edge of photoelectricity class colour code (12a, 13a, 14a), (12b, 13b, 14b).Synthesis visual inspection line in Fig. 5 (a), (b) is " cross
Line ".
The multi-functional sets of color patches, single plate visual inspection line (51b, 52b, 53b) be located at the 2nd to N coloured light electricity class colour code (12b,
13b, 14b) edge.Single plate visual inspection line in Fig. 5 (b) is " right-angle line ".
Multi-functional sets of color patches of the present invention, comprehensive visual inspection line (41a, 42a, 43a), (41b, 42b, 43b) and single plate mesh
Inspection line (51b, 52b, 53b) is not limited to both forms listed in actual use.
Multi-functional sets of color patches of the present invention, each size by user determines according to actual conditions.
The step of register partial difference detection is carried out in the present invention is as shown in figure 12, and video camera searches addressing label on printing plate,
Judge whether current location is color scale space, and video camera captures multi-functional colour code group image in color scale space and is sent to tablet computer.
The pixel value in image is converted into distance value using image processing algorithm, calculate between photoelectricity class colour code and calibration point away from
From value (bar shaped is triangle or the trapezoidal distance for being designated as both direction with a distance from a direction), compares gauged distance and covered
Quasi- error, and it is sent to controller.When allowed band of the registration error beyond setting, controller calculates control using internal algorithm
Error signal processed, actuating sleeve alignment motor adjust the position of printing block.
Figure 13 is suitable for multi-functional sets of color patches video camera assay device structures schematic diagram of the present invention.Printable fabric 6
When passing through the roller platen 7 and printing plate 8 of each station by graphic arrow direction, the colour code on printing plate 8 will be printed on printable fabric 6
Corresponding position, and the chromatography colour code of the triggering each station of frequency collection provided by video camera 9 according to controller 15.By tablet computer
10 carry out image procossing, complete image calibration, pixel value is converted into distance value, obtains chromatography error, and be sent to controller
15 and host 17.The chromatography error that controller 15 is provided according to tablet computer 10 calculates adjustment amount using internal algorithm and sends
Set alignment motor is given, the position of print printing plate is changed.Host 17 switches the real-time sets of color patches image of each station by interchanger 16.And lead to
Display 18 is crossed to show and amplify the sets of color patches image of each station.
Claims (4)
1. a kind of for detecting the multi-functional sets of color patches of printing registration deviation, which is characterized in that the sets of color patches is by calibration point, seeks
Location label and photoelectricity class colour code are formed；
Wherein, the addressing is labeled as the relatively-stationary dot in position, line segment or rectangle, and the described addressing label setting is the
On printing plate of the same colour, for marking position of the sets of color patches on printing plate, provide by the position of altimetric image；
The photoelectricity class colour code can be bar shaped mark, triangle mark or trapezoidal mark；The photoelectricity class colour code is according to printing
Color sequences are separately positioned on each printing plate；
When photoelectricity class colour code is bar shaped mark, the calibration point is two dots or line segment near bar shaped mark；Work as light
When electric class colour code is triangle mark or trapezoidal mark, the calibration point is located near three angles of triangle mark or trapezoidal mark
Three dots or line segment, the position between each dot or line segment are relatively fixed；The calibration point is arranged on the first color printing plate,
Effect is to provide benchmark when carrying out image measurement for other coloured light electricity class colour codes printed later；
2. according to claim 1 for detecting the multi-functional sets of color patches of printing registration deviation, which is characterized in that the colour code
Group further includes single plate visual inspection line or comprehensive visual inspection line,
The single plate visual inspection line is arranged on the first color printing plate, is used for other coloured light electricity class colour code printing deviations of visual inspection and effect
Fruit, shape can be right-angle line, cross hairs or multiple line segments composition；
The synthesis visual inspection line is arranged on the first color printing plate, and is formed respectively with one on other printing plates and prints with the first color
The visual inspection line of synthesis visual inspection line same shape in version, when printing, overlap with the synthesis visual inspection line on the first color printing plate,
Effect is that the register partial difference printed to front carries out comprehensive visual inspection, and shape can be right-angle line, cross hairs or multiple lines
Duan Zucheng；
The single plate visual inspection line and comprehensive visual inspection line are located at the edge of other coloured light electricity class colour codes after the first color.
3. according to claim 1 for detecting the multi-functional sets of color patches of printing registration deviation, which is characterized in that the colour code
Photoelectricity class colour code described in group is longitudinal arrangement respectively and transversely arranged there are two types of set-up mode in printing；
When photoelectricity class colour code is longitudinal arrangement, addressing label is located at the top of the photoelectricity class colour code of the first color；
When photoelectricity class colour code is transversely arranged, addressing label is located at the top or left end of the first coloured light electricity class colour code.
4. according to claim 1 for detecting the multi-functional sets of color patches of printing registration deviation, which is characterized in that described
Calibration point is located at the symmetric position of the upper and lower two sides after the first color near other coloured light electricity class colour codes；Alternatively, the calibration
Put the same side after may be alternatively located at the first color near other coloured light electricity class colour codes.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814536A (en) * | 2019-03-01 | 2019-05-28 | 长春市吉海测控技术有限责任公司 | A kind of register partial difference detection method based on machine vision register control system |
| CN110065309A (en) * | 2019-04-19 | 2019-07-30 | 深圳圣德京粤科技有限公司 | A kind of more spray head adjusting methods for chromatography |
| CN110802960A (en) * | 2019-10-28 | 2020-02-18 | 西门子工厂自动化工程有限公司 | Unit type flexible printing machine overprinting method, device, system and computer readable medium |
| CN110936714A (en) * | 2019-12-05 | 2020-03-31 | 孙海涛 | Micro-point color code group for detecting overprint deviation of color printing |
| CN112223908A (en) * | 2020-09-28 | 2021-01-15 | 广西真龙实业有限责任公司 | Multicolor printing overprinting auxiliary alignment process |
| CN113492579A (en) * | 2020-03-19 | 2021-10-12 | 海德堡印刷机械股份公司 | On-line white control |
| CN113682050A (en) * | 2021-08-24 | 2021-11-23 | 凌云光技术股份有限公司 | Method for collecting registration target |
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| CN109814536A (en) * | 2019-03-01 | 2019-05-28 | 长春市吉海测控技术有限责任公司 | A kind of register partial difference detection method based on machine vision register control system |
| CN110065309A (en) * | 2019-04-19 | 2019-07-30 | 深圳圣德京粤科技有限公司 | A kind of more spray head adjusting methods for chromatography |
| CN110065309B (en) * | 2019-04-19 | 2020-07-14 | 深圳圣德京粤科技有限公司 | Multi-nozzle adjusting method for overprinting |
| CN110802960A (en) * | 2019-10-28 | 2020-02-18 | 西门子工厂自动化工程有限公司 | Unit type flexible printing machine overprinting method, device, system and computer readable medium |
| CN110802960B (en) * | 2019-10-28 | 2021-05-14 | 西门子工厂自动化工程有限公司 | Unit type flexible printing machine overprinting method, device, system and computer readable medium |
| CN110936714A (en) * | 2019-12-05 | 2020-03-31 | 孙海涛 | Micro-point color code group for detecting overprint deviation of color printing |
| CN113492579A (en) * | 2020-03-19 | 2021-10-12 | 海德堡印刷机械股份公司 | On-line white control |
| CN112223908A (en) * | 2020-09-28 | 2021-01-15 | 广西真龙实业有限责任公司 | Multicolor printing overprinting auxiliary alignment process |
| CN113682050A (en) * | 2021-08-24 | 2021-11-23 | 凌云光技术股份有限公司 | Method for collecting registration target |
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