CN116945770A - Multicolor sleeve control system of digital printer - Google Patents
Multicolor sleeve control system of digital printer Download PDFInfo
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- CN116945770A CN116945770A CN202311148584.2A CN202311148584A CN116945770A CN 116945770 A CN116945770 A CN 116945770A CN 202311148584 A CN202311148584 A CN 202311148584A CN 116945770 A CN116945770 A CN 116945770A
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- 238000007639 printing Methods 0.000 claims abstract description 183
- 239000007921 spray Substances 0.000 claims abstract description 57
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 3
- 239000003086 colorant Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
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- Ink Jet (AREA)
Abstract
The invention discloses a multicolor sleeve control system of a digital printer, which belongs to the technical field of automatic control and comprises the following components: the central controller comprises a control module, a data acquisition module, a timing module and a monitoring module; a nozzle device for jetting ink to a printing stock; the positioning device is used for positioning the initial position of the printing color surface of the printing stock; the encoder roller calculates the paper feeding length of the printing stock; the data acquisition module acquires printing image data, the transmission speed of the transmission device, the paper feeding length of a printing stock and the distance from the positioning device to the spray head device; the timing module is used for calculating time; the monitoring module monitors whether the data acquisition module acquires the real-time printing stock paper feeding length. According to the invention, the positioning device is arranged, so that the encoder roller recalculates the paper feeding length of the printing stock, and the positioning precision is improved; the control module is informed of the calculated time by the timing module, so that the problem that the ink jet time is inaccurate due to the fact that the paper feeding length cannot be determined when slipping occurs is avoided.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a multicolor sleeve control system of a digital printer.
Background
The multi-color overprinting of the existing digital printer is to provide pulse signals to different color printing spray head devices through the same high-precision encoder, different printing delays are set through printing software to realize different colors of printing sleeve positions, the encoder is used for converting signals of a selection angle of the encoder into signals of a paper feeding length of a printing stock, namely judging whether the printing stock reaches the position under the printing spray head and prints according to the paper feeding length of the printing stock and the set distance, but each conversion of the encoder has a certain error, the more the accumulated error is, for example, the more the first printing spray head prints a line, the later printing spray head also prints the same line and overlaps the line printed by the first printing spray head, because the conversion error of the encoder is accumulated continuously, the printing sleeve position precision is worse and worse, the printed line is more and worse, and meanwhile, if the paper feeding process occurs, the encoder cannot calculate the paper feeding length through the rotation angle, so that the digital printer needs a control system to solve the problems in the prior art when performing multi-color overprinting.
Disclosure of Invention
The invention provides a multicolor sleeve control system of a digital printer for solving the technical problems in the prior art, which comprises: a central controller, an encoder roller, a conveyor and at least four printing modules; each printing module comprises a positioning device and a spray head device; the central controller comprises a control module, a data acquisition module, a timing module and a monitoring module;
the spray head device is used for spraying ink to the printing stock to print;
the positioning device is used for sensing and positioning the initial position of the printing color surface of the printing stock;
the encoder roller is arranged at the printing inlet and is used for calculating the paper feeding length d of the printing stock;
the data acquisition module is used for acquiring printing image data, the transmission speed v1 of the transmission device, the paper feeding length d of the printing stock and the distance s from the positioning device in each printing module to the spray head device;
the timing module is used for starting timing after the initial position of the printing color surface of the printing stock is positioned by the positioning device in a sensing way, and is marked as t1;
the control module is used for receiving the control signal sent by the control data acquisition module and/or the timing module and controlling the spray head device to spray ink;
the monitoring module is used for monitoring whether the data acquisition module acquires the paper feeding length of the real-time printing stock;
the printing module, the encoder roller and the conveyor are all in communication connection with a central controller.
Further, the positioning device is specifically a color code sensor.
Further, the positioning device and the nozzle device of the same printing module are arranged according to the direction from the printing inlet to the printing outlet.
Further, the printing module further comprises a Uv curing lamp for drying and curing the printing color surface of the printing stock.
Further, the printing device also comprises a fixing module which is in communication connection with the central controller and is used for fixing a printing object.
Further, the device also comprises an infrared ranging sensor which is in communication connection with the central controller and is used for measuring the height H from the nozzle of the nozzle device to the conveying device and the distance H from the nozzle to the printing stock and sending the measured height H and the distance H to the data acquisition module.
Further, the data acquisition module is further configured to set a height threshold, and determine whether a distance H from the nozzle to the printing object is greater than the height threshold, if so, h=h.
Further, the data acquisition module also acquires the speed v2 at which the nozzle device ejects ink onto the printing stock.
Further, the timing module also calculates the time t2=h/v 2 for the inkjet head device to eject ink onto the substrate.
Further, the device also comprises an approximate color selection module, which is used for judging whether a color spraying scheme needing no operation of all the spray head devices exists or not according to a set Euclidean distance threshold value when the printed image is monochromatic, and selecting the color spraying scheme needing the least operation of the spray head devices for printing.
Compared with the prior art, the invention has the beneficial effects that:
by arranging the positioning device in front of the spray head device, the encoder roller recalculates the paper feeding length of the printing stock, improves the positioning precision, and avoids the inaccurate positioning caused by accumulated errors;
the control module is informed of controlling the spray head device by the time of the initial position of the printing color surface of the printing object, calculated by the timing module, transmitted from the positioning device of the current printing module to the spray head device, so that the problem that the spray head device is started at inaccurate time due to the fact that the paper feeding length cannot be determined when slipping occurs is avoided;
the infrared distance measuring sensor and the data acquisition module are used for determining the time required by the printing ink to the printing stock, further determining the actually required paper feeding length value and further informing the control module to control the spray head device;
and the color spraying scheme with the least spray head devices working is obtained through the approximate color selection module, so that the number of the spray head devices working is reduced, and the sleeve position error is reduced.
Drawings
Fig. 1 is a block diagram of the system of the present invention.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention provides a multicolor jacket control system of a digital printer, comprising: a central controller, an encoder roller, a conveyor, and at least four printing modules.
The printing module, the encoder roller and the conveyor are all in communication connection with a central controller.
Each printing module comprises a positioning device and a spray head device;
the spray head device is used for spraying ink to the printing stock to print;
each nozzle device is provided with ink with different colors, such as four nozzle devices, cyan (Cyan), magenta (Magenta), yellow (Yellow) and Black (Black) are sequentially arranged, and each color sequentially carries out superposition overprinting on a printing stock according to different proportions to obtain the required image-text color.
The printing material refers to various materials which can accept ink or adsorb pigment and present images and texts, such as various papers of relief paper, intaglio paper, offset printing coating paper and the like.
The positioning device is used for positioning the initial position of the printing color surface of the printing stock;
the positioning module is specifically a color code sensor and is arranged above the conveying device;
the color scale sensor detects reflected light by using a photoelectric device so as to measure the color of the surface of the object, and the principle is based on the basic concept of color, namely that the spectral distribution of the reflection of the surface of the object is the same as the color of the object. Specifically, when the color code sensor irradiates the surface of the object, a beam of light is emitted, part of the light is absorbed by the surface of the object, the other part of the light is reflected back to the color code sensor, and after the color code sensor receives the reflected light, the reflected light is analyzed and processed through the circuit and the signal processor to obtain color information of the surface of the object. Before use, parameter setting is carried out on the color code sensor by a method of setting keys on the color code sensor or connecting a computer and the like, wherein the parameter setting comprises color space, sensitivity, reflectivity range and the like, and the parameter setting directly influences the detection precision and application range of the color code sensor.
The positioning device and the head device of the same printing module are arranged according to the direction from the printing inlet to the printing outlet, for example, the positioning device 1, the head device 1, the positioning device 2 and the head device 2 are arranged in sequence from the printing inlet.
The encoder roller is arranged at the printing inlet and is used for calculating the paper feeding length d of the printing stock;
the encoder roller consists of a roller column and an encoder, wherein the encoder is a device for compiling and converting signals or data into a signal form which can be used for communication, transmission and storage. The encoder converts angular displacement, referred to as a code wheel, or linear displacement, referred to as a code scale, into an electrical signal. Encoders can be classified into contact type and non-contact type according to the read-out mode; encoders can be classified into incremental and absolute types according to the operating principle. The incremental encoder converts the displacement into a periodic electric signal, then converts the electric signal into counting pulses, and the number of the pulses is used for representing the displacement, namely, the signal of the rotation angle of the encoder is converted into the signal of the paper feeding length of the printing stock.
In the technical scheme of the invention, an incremental encoder is adopted, overprinting marks are arranged at the initial positions of printing areas required by printing objects, in the process of conveying and printing, the printing objects drive an encoder roller to rotate, after the color code sensor senses the overprinting marks, the encoder starts to calculate the paper feeding length d of the printing objects, after the next color code sensor senses the overprinting marks, the encoder eliminates the previous paper feeding data of the printing objects, and the paper feeding length d of the printing objects is recalculated, and is specifically calculated according to the circumference length and the rotation angle of the circular section of a roller column.
The central controller comprises a control module, a data acquisition module, a timing module and a monitoring module.
The data acquisition module is used for acquiring printing image data, the transmission speed v1 of the transmission device, the paper feeding length d of the printing stock and the distance s from the positioning device in each printing module to the spray head device;
printing image data, comprising: printing images and printing positions, and uploading by staff;
the data acquisition module detects the transmission speed v1 of the transmission device, the printing stock is transmitted on the transmission device, the motion speed of the printing stock is the same as the transmission speed v1 of the transmission device, and uniform motion is carried out; the conveying speed of the conveying device is set by staff according to actual needs;
the data acquisition module acquires the paper feeding length d of the printing stock from the encoder roller, calculates the paper feeding length d of the printing stock after the positioning device senses the overprinting mark, and recalculates the paper feeding length d after the next positioning device senses the overprinting mark;
the distance s from the positioning device in each printing module to the nozzle device is set by a worker according to actual needs, and the distance from each positioning device to the corresponding nozzle device may not be identical.
Specifically, when the overprinting mark on the printing stock is sensed by the positioning device of the current printing module, after the initial position of the printing color surface of the printing stock is positioned, the encoder roller starts to calculate the paper feeding length d of the printing stock and sends the paper feeding length d to the data acquisition module in real time, when the data acquisition module detects that the paper feeding length d of the printing stock is equal to the distance s from the positioning device of the printing stock in the current printing module to the spray head device, the control module is informed, and the control module judges whether the spray head device in the current printing module is required to spray colors according to the printing image data, and if so, the spray head device is controlled to spray colors; if not, the substrate is continuously transferred to the next printing module and the process is repeated.
The monitoring module is used for monitoring whether the data acquisition module acquires the paper feeding length of the real-time printing stock;
and the timing module is used for starting timing after the initial position of the printing color surface of the printing stock is positioned by the positioning device and is marked as t1.
When the slipping condition occurs, the encoder roller does not rotate any more, the paper feeding length of the printing stock can not be calculated, but the printing stock is still conveyed and printed, at the moment, the controller can not control the spray head device to spray color according to the paper feeding length of the printing stock, so that the technical scheme of the invention monitors whether the data acquisition module acquires the paper feeding length of the real-time printing stock or not through the monitoring module, if the data acquisition module does not acquire the paper feeding length of the real-time printing stock, the slipping condition is judged, the timing module is informed to start timing, and the timing is recorded as t1; because the printing stock moves at a uniform speed, the speed is v1, and the time required for the initial position of the printing color surface of the printing stock to be transmitted from the positioning device of the current printing module to the nozzle device is T=s/v 1; when the timing module counts t1=T, the initial position of the printing color surface of the printing material is judged to be transmitted to the lower part of the spray head device, the timing module informs the control module, the control module judges whether the spray head device in the current printing module is required to spray colors according to the printing image data, and if so, the spray head device is controlled to spray colors.
In some embodiments, the two conditions d=s and t1=t need to be satisfied at the same time to notify the control module, and the control module controls the spray head device in the current printing module to spray color.
The printing module further comprises a curing lamp which is arranged behind the corresponding nozzle device, namely, a printing stock passes through the nozzle device of the current printing module and then passes through the Uv curing lamp of the current printing module, and the curing lamp is used for drying and curing the printing color surface of the printing stock, so that the situation that the printing color surface of the printing stock is not dried due to the influence of inertia in the conveying process or the influence of pressure impact when the next nozzle device sprays color is avoided, and the printing color surface of the printing stock is deformed and registered.
The ultraviolet curing lamp is used for emitting ultraviolet rays and curing ultraviolet resins such as printing ink, UV paint, UV glue, UV light oil and the like, the ultraviolet curing lamp is used as an LED ultraviolet curing lamp, LED lamp beads are used as curing lamps of light sources, ultraviolet light sources with fixed wave bands are emitted through LED chips, the use requirement of curing is met, workers customize the luminous size according to different use conditions, and generally Uv LED point light sources, line light sources, surface light sources, annular light sources, parallel light sources and the like are arranged, and the irradiation area is set according to specific use conditions.
In some embodiments, the multicolor sleeve control system of the digital printer further comprises a fixing module which is in communication connection with the central controller and is used for fixing the printing material and preventing the printing material from stretching or distorting.
In some embodiments, considering that the nozzle device sprays color, the ink needs a certain time to reach the printing object, the multicolor sleeve control system of the digital printer further comprises an infrared ranging sensor, which is arranged at the printing inlet and above the conveying device, namely, the first positioning device is in communication connection with the central controller and is used for measuring the height H from the nozzle of the nozzle device to the conveying device and the distance H from the nozzle to the printing object, and sending the measured height H from the nozzle to the conveying device to the data acquisition module;
the data acquisition module also acquires a height threshold value and judges whether the distance H from the nozzle to the printing stock is larger than the height threshold value, if so, the thickness of the printing stock is negligible, and at the moment, the distance from the nozzle to the printing stock is the height from the nozzle to the conveying device, namely h=H; the height threshold is set by staff according to actual conditions;
the data acquisition module also acquires the speed v2 of the inkjet nozzle device for jetting ink onto the printing stock, and acceleration is not considered here;
the timing module also calculates the time t2=h/v 2 of the nozzle device for jetting ink onto the printing stock according to the distance h between the nozzle and the printing stock and the speed v2 of the nozzle device for jetting ink onto the printing stock;
in general, printing is performed when the paper feed length d of the printing stock is detected to be equal to the distance s from the positioning device in the current printing module to the nozzle device, but the printing stock is conveyed all the time in the process of printing the printing stock, so that the actual paper feed length d=s+v1t2 of the printing stock is printed, and the position where the printing ink falls is located behind the initial position of the printing color surface of the printing stock;
based on the above-mentioned situation, in some embodiments of the present disclosure, when the data acquisition module detects that the printing stock paper feeding length d=s-v 1t2, the control module is notified, and the control module determines, according to the print image data, whether the current nozzle device in the print module is required to perform color spraying, and if so, controls the nozzle device to perform color spraying.
In some embodiments, considering the time T2 required by the ink on the printing stock and the situation of slipping at the same time, when the timing module counts t1=t-T2, the control module is notified, and the control module determines whether the current nozzle device in the printing module is required to spray color according to the printing image data, and if so, the nozzle device is controlled to spray color.
In some embodiments, the multicolor sleeve control system of the digital printer further comprises an approximate color selection module, which is used for judging whether a color spraying scheme needing no operation of all the nozzle devices exists or not according to a set euclidean distance threshold value when the printed image is monochromatic, and selecting the color spraying scheme needing the operation of the least nozzle device for printing.
In printing, a CMYK color mode is generally adopted, namely, a color mixing principle of three primary colors of pigment is adopted, black ink is added, and four colors are mixed and overlapped in total to form multicolor printing; for example, a certain color can be obtained by superposing cyan, magenta, yellow and black according to different proportions.
Each color has corresponding coordinate values (C, M, Y, K) in the CMYK color coordinate system, and comparing the similarity of the two colors can be achieved by calculating the euclidean distance D between them.
For example, when only the image is printed with only color 1, color 1 coordinate values (C1, M1, Y1, K1), color 2 coordinate values (C2, M2, Y2, K2);
when D is smaller than the set Euclidean distance threshold, judging that the color 2 is an approximate color of the color 1, detecting whether the four colors of CMYK of the color 2 have the color with the ratio of 0 or not, namely selecting the printing color 2 when printing a color image, and enabling the nozzle device with the color with the ratio of 0 to be arranged without ink jetting, wherein the more the number of the nozzle devices which are required to work is, the greater the possibility of inaccurate registration is, so that the registration error is reduced by reducing the working quantity of the nozzle devices;
meanwhile, in this embodiment, different approximate colors are obtained through the above manner to obtain different color spraying schemes, and a color spraying scheme using the least nozzle devices to work is selected for printing, for example, 3 nozzle devices are required for printing approximate color 2, and 2 nozzle devices are required for printing approximate color 3, and then the control system selects a color spraying scheme for printing approximate color 3 to control the nozzle devices to spray color.
The invention has the beneficial effects that:
by arranging the positioning device in front of the spray head device, the encoder roller recalculates the paper feeding length of the printing stock, improves the positioning precision, and avoids the inaccurate positioning caused by accumulated errors;
the control module is informed of controlling the spray head device by the time of the initial position of the printing color surface of the printing object, calculated by the timing module, transmitted from the positioning device of the current printing module to the spray head device, so that the problem that the spray head device is started at inaccurate time due to the fact that the paper feeding length cannot be determined when slipping occurs is avoided;
the infrared distance measuring sensor and the data acquisition module are used for determining the time required by the printing ink to the printing stock, further determining the actually required paper feeding length value and further informing the control module to control the spray head device;
and the color spraying scheme with the least spray head devices working is obtained through the approximate color selection module, so that the number of the spray head devices working is reduced, and the sleeve position error is reduced.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the invention as defined in the appended claims.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
1. A digital printer multicolor jacket control system, comprising: a central controller, an encoder roller, a conveyor and at least four printing modules; each printing module comprises a positioning device and a spray head device; the central controller comprises a control module, a data acquisition module, a timing module and a monitoring module;
the spray head device is used for spraying ink to the printing stock to print;
the positioning device is used for sensing and positioning the initial position of the printing color surface of the printing stock;
the encoder roller is arranged at the printing inlet and is used for calculating the paper feeding length d of the printing stock;
the data acquisition module is used for acquiring printing image data, the transmission speed v1 of the transmission device, the paper feeding length d of the printing stock and the distance s from the positioning device in each printing module to the spray head device;
the timing module is used for starting timing after the initial position of the printing color surface of the printing stock is positioned by the positioning device in a sensing way, and is marked as t1;
the monitoring module is used for monitoring whether the data acquisition module acquires the paper feeding length of the real-time printing stock;
the control module is used for receiving the control signal sent by the control data acquisition module and/or the timing module and controlling the spray head device to spray ink;
the printing module, the encoder roller and the conveyor are all in communication connection with a central controller.
2. The digital printer multi-color sleeve control system according to claim 1, wherein the positioning device is embodied as a color code sensor.
3. The multi-color sleeve control system of claim 1 wherein the positioning device and the nozzle device of the same printing module are arranged according to the direction from the printing inlet to the printing outlet.
4. The digital printer multi-color sleeve control system of claim 1, wherein the printing module further comprises a Uv curing light for drying and curing the printed color side of the substrate.
5. The digital printer multi-color sleeve control system of claim 1, further comprising a securing module communicatively coupled to the central controller for securing a substrate.
6. The digital printer multi-color sleeve control system of claim 1, further comprising an infrared ranging sensor communicatively coupled to the central controller for measuring the nozzle-to-conveyor height H and the nozzle-to-substrate distance H of the spray head device and sending to the data acquisition module.
7. The multi-color sleeve control system of claim 6 wherein the data acquisition module further acquires a height threshold and determines whether the nozzle-to-substrate distance H is greater than the height threshold, if so, H = H.
8. The digital printer multi-color sleeve control system of claim 6 wherein the data acquisition module further acquires a velocity v2 at which the nozzle assembly ejects ink onto the substrate.
9. The digital printer multi-color sleeve control system of claim 8, wherein the timing module further calculates a time t2=h/v 2 for the nozzle device to eject ink onto the substrate.
10. The system of claim 1, further comprising an approximate color selection module for determining whether there is a color spray scheme requiring operation of all of the nozzle devices according to a set euclidean distance threshold when the printed image is monochrome, and selecting a color spray scheme requiring operation of a minimum of the nozzle devices for printing.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0848028A (en) * | 1994-08-08 | 1996-02-20 | Tokyo Kikai Seisakusho Ltd | Misregister detection method and apparatus in multicolor rotary press and register adjusting automatic controller |
| US6068362A (en) * | 1996-11-15 | 2000-05-30 | Imaje S.A. | Continuous multicolor ink jet press and synchronization process for this press |
| WO2010111847A1 (en) * | 2009-03-31 | 2010-10-07 | Wu Dongjie | A method achieving on-line printing of variable content and a hybrid digital printing system |
| CN102218900A (en) * | 2011-03-29 | 2011-10-19 | 华中科技大学 | Method for detecting overprint errors of photogravure press on the basis of field programmable gate array (FPGA) |
| CN103182864A (en) * | 2011-12-31 | 2013-07-03 | 北大方正集团有限公司 | Digital printing synchronous control device and control method |
| CN106739483A (en) * | 2015-11-24 | 2017-05-31 | 北大方正集团有限公司 | Printing platform surge detection device and method |
| CN107192364A (en) * | 2016-03-14 | 2017-09-22 | 北大方正集团有限公司 | A kind of two-way colour code distance and color lump are apart from automatic testing method and device |
| CN110065322A (en) * | 2018-01-24 | 2019-07-30 | 北大方正集团有限公司 | Chromatography processing method, system, computer equipment and readable storage medium storing program for executing |
| CN209649715U (en) * | 2018-12-03 | 2019-11-19 | 汕头东风印刷股份有限公司 | A kind of continuous colour code chromatography device |
| CN111873655A (en) * | 2020-07-20 | 2020-11-03 | 杭州电子科技大学 | Continuous page type double-sided ink-jet overprinting method and device |
| CN112078230A (en) * | 2020-09-03 | 2020-12-15 | 武汉华茂自动化股份有限公司 | Fault-equipped operation method of automatic overprinting control system, electronic device and medium |
| CN112356579A (en) * | 2020-11-09 | 2021-02-12 | 北京方正印捷数码技术有限公司 | Printing press control method and device |
| CN113561646A (en) * | 2021-08-24 | 2021-10-29 | 凌云光技术股份有限公司 | Registration system and printing equipment |
-
2023
- 2023-09-07 CN CN202311148584.2A patent/CN116945770B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0848028A (en) * | 1994-08-08 | 1996-02-20 | Tokyo Kikai Seisakusho Ltd | Misregister detection method and apparatus in multicolor rotary press and register adjusting automatic controller |
| US6068362A (en) * | 1996-11-15 | 2000-05-30 | Imaje S.A. | Continuous multicolor ink jet press and synchronization process for this press |
| WO2010111847A1 (en) * | 2009-03-31 | 2010-10-07 | Wu Dongjie | A method achieving on-line printing of variable content and a hybrid digital printing system |
| CN102218900A (en) * | 2011-03-29 | 2011-10-19 | 华中科技大学 | Method for detecting overprint errors of photogravure press on the basis of field programmable gate array (FPGA) |
| CN103182864A (en) * | 2011-12-31 | 2013-07-03 | 北大方正集团有限公司 | Digital printing synchronous control device and control method |
| CN106739483A (en) * | 2015-11-24 | 2017-05-31 | 北大方正集团有限公司 | Printing platform surge detection device and method |
| CN107192364A (en) * | 2016-03-14 | 2017-09-22 | 北大方正集团有限公司 | A kind of two-way colour code distance and color lump are apart from automatic testing method and device |
| CN110065322A (en) * | 2018-01-24 | 2019-07-30 | 北大方正集团有限公司 | Chromatography processing method, system, computer equipment and readable storage medium storing program for executing |
| CN209649715U (en) * | 2018-12-03 | 2019-11-19 | 汕头东风印刷股份有限公司 | A kind of continuous colour code chromatography device |
| CN111873655A (en) * | 2020-07-20 | 2020-11-03 | 杭州电子科技大学 | Continuous page type double-sided ink-jet overprinting method and device |
| CN112078230A (en) * | 2020-09-03 | 2020-12-15 | 武汉华茂自动化股份有限公司 | Fault-equipped operation method of automatic overprinting control system, electronic device and medium |
| CN112356579A (en) * | 2020-11-09 | 2021-02-12 | 北京方正印捷数码技术有限公司 | Printing press control method and device |
| CN113561646A (en) * | 2021-08-24 | 2021-10-29 | 凌云光技术股份有限公司 | Registration system and printing equipment |
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