CN111845052B - Offset printing system for variable information online jet printing - Google Patents
Offset printing system for variable information online jet printing Download PDFInfo
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- CN111845052B CN111845052B CN202010733433.3A CN202010733433A CN111845052B CN 111845052 B CN111845052 B CN 111845052B CN 202010733433 A CN202010733433 A CN 202010733433A CN 111845052 B CN111845052 B CN 111845052B
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- 238000007639 printing Methods 0.000 title claims abstract description 208
- 238000007645 offset printing Methods 0.000 title claims abstract description 52
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 22
- 230000008023 solidification Effects 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 19
- 238000005507 spraying Methods 0.000 abstract description 3
- 238000001723 curing Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000007641 inkjet printing Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000003848 UV Light-Curing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000026676 system process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
- B41F19/007—Apparatus or machines for carrying out printing operations combined with other operations with selective printing mechanisms, e.g. ink-jet or thermal printers
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Abstract
The application discloses an offset printing system for variable information spouts seal on line belongs to variable information printing technical field, has solved the problem that the variable information of printed matter spouts that the seal process is loaded down with trivial details, offset press and ink jet numbering machine speed are unmatched, spout that the seal is slow among the prior art. The offset printing system comprises a printing color group and a curved surface spraying color group; the curved surface jet printing color group comprises a jet printing paper transfer roller and a jet printing component arranged on the peripheral surface of the jet printing paper transfer roller; the printing color group comprises a printing paper transfer roller rubber roller and a printing plate roller. The offset printing system of the present application can simultaneously achieve printing and variable information jet printing.
Description
Technical Field
The application belongs to the technical field of variable information printing, and particularly relates to an offset printing system for variable information online jet printing.
Background
In the existing printing factory, the variable information of the printed matter spray printing usually needs two processes: firstly, printing paper by using an offset printing system, then transferring the printed paper to a jet printing process, and finishing variable information jet printing by using an ink jet printer; alternatively, the variable information is first jet printed on the paper using an inkjet printer, and then the variable information jet printed paper is printed using an offset printing system. In the printing and jet printing processes, the printing speed of the offset printing system is 10000-12000 sheets/hour, the working speed of the code spraying machine is 5000-6000 sheets/hour, and 2 code spraying machines are needed to be matched with 1 offset printing system for ensuring the production efficiency due to the speed mismatch. And 2 inkjet printers require power supplies such as electricity and the like, and at least 4 operators and a 60-70 square meter work site.
Disclosure of Invention
In view of the above analysis, the present application aims to provide an offset printing system for variable information online inkjet printing, so as to solve the problems of the prior art, such as complicated variable information inkjet printing process of printed matters, mismatched offset printing machine and inkjet printing machine, and slow inkjet printing speed.
The purpose of the application is mainly realized by the following technical scheme:
the application provides an offset printing system for variable information online jet printing, which comprises a printing color group and a curved surface jet printing color group; the curved surface jet printing color group comprises a jet printing paper transfer roller and a jet printing component arranged on the peripheral surface of the jet printing paper transfer roller; the printing color group comprises a printing paper transfer roller, a rubber roller and a printing plate roller.
Furthermore, the jet printing assembly comprises a bottom plate, a spray head assembly arranged on the bottom plate and an ink supply assembly connected with the spray head assembly, wherein ink is filled in the ink supply assembly.
Furthermore, the spray head assembly comprises a plurality of spray heads, and spray holes on the plurality of spray heads are arranged in a staggered mode along the paper feeding direction.
Furthermore, the spray head is a high-speed high-precision piezoelectric type spray head.
Further, the nozzle assembly is a double-spliced nozzle and comprises a first nozzle and a second nozzle which are arranged in a staggered mode along the paper feeding direction.
Further, the bottom plate is of a split structure and comprises a plurality of sub-plates, two adjacent sub-plates are detachably connected, each sub-plate is provided with a spray head, and the sub-plates correspond to the spray heads one to one.
Furthermore, the axes of the spray heads coincide with the normal line of the cambered surface of the jet printing paper transfer roller, and the spray heads are spliced along the position where the normal line of the cambered surface of the jet printing paper transfer roller coincides.
Further, the axis of the showerhead assembly is disposed in a vertical direction.
Furthermore, a plurality of rows of air suction holes are formed in the peripheral surface of the jet printing paper conveying roller and are evenly distributed, a plurality of air suction channels are arranged inside the jet printing paper conveying roller, each air suction channel is communicated with at least one row of air suction holes, and an air outlet of each air suction channel is connected with a negative pressure device.
Furthermore, the air outlet of the air suction channel is one and is positioned at one end of the air suction channel, or the air outlets of the air suction channel are two and are positioned at two ends of the air suction channel.
Furthermore, the number of the air suction channels is the same as the row number of the air suction holes, and each air suction channel corresponds to one row of the air suction holes; or the number of the air suction channels is less than the number of rows of the air suction holes, and each air suction channel corresponds to at least two rows of the air suction holes.
Further, spout seal biography paper roller includes the roller body and locate the board that induced drafts of roller body outer peripheral face, the roller body can be dismantled with the board that induced drafts and be connected, on the board that induced drafts was located to the hole of induced drafting, a plurality of grooves that induced drafts that correspond with the hole of induced drafting are seted up to the outer peripheral face of roller body, and the groove that induced drafts constitutes the passageway of induced drafting with the board that induced drafts of the groove opening part of induced drafting.
Furthermore, part or all of the air suction channels are connected with the negative pressure device through the air suction nozzles, one ends of the air suction nozzles are communicated with air outlets of the air suction channels, and the other ends of the air suction nozzles are connected with air inlets of the negative pressure device.
Furthermore, the shape of the air suction nozzle is in a ring shape with a gap, and the air suction nozzle partially covers the end part of the jet printing paper transfer roller and is in sliding connection with the jet printing paper transfer roller.
Furthermore, the shape of the air suction nozzle is semi-annular, the air suction nozzle covers the upper half part of the jet printing paper transfer roller, and an air suction channel positioned on the upper half part of the jet printing paper transfer roller is connected with a negative pressure device through the air suction nozzle.
Furthermore, the offset printing system also comprises a jet printing detection assembly for detecting the variable information quality of jet printing, the jet printing detection assembly is arranged on the peripheral surface of the jet printing paper transfer roller, and the jet printing detection assembly is positioned behind the jet printing assembly along the paper feeding direction.
Further, the jet printing detection assembly is a high-speed industrial line camera.
Furthermore, the offset printing system also comprises a curing assembly arranged on the peripheral surface of the jet printing paper transfer roller, and the curing assembly is positioned behind the jet printing assembly along the paper feeding direction.
Further, the curing assembly is a UV curing assembly.
Further, the curing assembly is positioned behind the jet printing detection assembly along the paper feeding direction.
Furthermore, the offset printing system also comprises a printing detection assembly for detecting printing information, wherein the printing detection assembly is arranged on the peripheral surface of the jet printing paper transfer roller and is positioned in front of the jet printing assembly along the paper feeding direction.
Further, the printing detection assembly is a high-speed industrial line camera.
Compared with the prior art, the application can realize at least one of the following beneficial effects:
a) the application provides an offset printing system for variable information spouts seal on line, newly-increased a printing colour group on the basis of the printing colour group of current offset printing system, carry out the innovative design to the structure of this printing colour group, demolish rubber roller and the printing plate roller of top is whole, reserve the space installation to will spout the printing subassembly (for example, spout the printing subassembly at a high speed) and install in the biography paper roller top of this newly-increased printing colour group, thereby realize in offset printing system printing process, carry out the operation that variable information spouts the seal in real time to the printed matter on line.
b) The utility model provides an offset printing system for variable information spouts seal on line, effectively combine together ink jet numbering machine process and offset printing system process, can accomplish the variable information of real-time spout seal under 10000 mangles 12000 pieces/hour of offset printing system operating speed, can save 4 operative workers at least, the workplace and then energy resource consumption, simultaneously, it is a process with two processes (ink jet numbering machine process and offset printing system process), can effectively save management work such as process circulation time and scheduling, and, printing colour group and curved surface spout that printing colour group can match each other in speed, production efficiency has greatly been promoted.
c) The application provides an offset printing system for variable information spouts seal on line, and the unit of printing machine original factory is used to the printing colour group, accomplishes seamless butt joint with current printing machine, can not influence efficiency, precision and the operation effect of equipment.
d) The utility model provides an offset printing system for variable information spouts seal on line, first shower nozzle and the second shower nozzle of staggered arrangement make the point of falling intercrossing around, and physical resolution becomes the double-end by original single-end, because the increase of physical resolution, at the spout seal in-process, breaks down when the orifice of a certain shower nozzle appears, does not go out the ink, can not cause the inkjet to spout the decline of seal quality yet. In addition, in terms of the jet printing speed, the physical resolution is 1200dpi, the paper feeding direction can use the lower resolution jet printing than the prior single head, and the jet printing speed can be improved by more than one time. In addition, the low resolution in the paper feeding direction greatly reduces the use frequency of piezoelectric ceramics in the spray head and prolongs the service life of the spray head.
e) In the offset printing system for variable information online jet printing provided by the application, the axes of the spray heads are superposed with the normal line of the cambered surface of the jet printing paper transfer roller, and the distances between the surfaces of the spray heads and two points corresponding to the cambered surface of the jet printing paper transfer roller can be ensured to be equal, so that the problem of poor jet printing quality during horizontal splicing is solved, and the jet printing variable information quality of the offset printing system for variable information online jet printing is improved.
f) The application provides an offset printing system for variable information spouts seal on line, after the ink launches from the shower nozzle, be in the free motion state, move along the rectilinear direction with the help of launch velocity, however, the ink also can receive the influence of gravity simultaneously, spout the seal subassembly and set up along vertical direction, the direction of motion of ink is unanimous with the direction of gravity, can not receive the influence of gravity to take place the skew, thereby position is more accurate when guaranteeing to fall to the paper surface, it is better to spout the seal effect.
g) The application provides an in the offset printing system that is arranged in variable information to spout seal on line, take out the air in the passageway that induced drafts through negative pressure device, form the vacuum in the passageway that induced drafts, the hole of induced drafting is as the air inlet of the passageway that induced drafts, its inside wind direction is from the paper to the passageway that induced drafts, thereby can adsorb the paper in the transportation process, make its attached in the surface of spouting seal biography paper roller, prevent that the paper from skidding or fly up, and simultaneously, adopt the hole of induced drafting and the passageway cooperation of induced drafting, can also avoid adopting ordinary pressure paper wheel contact fish tail seal surface or printing ink to destroy the problem of printing effect under the not completely dry condition. In addition, the hole of induced drafting is connected with negative pressure device through the passageway that induced drafts, and negative pressure device's atmospheric pressure cushions in the passageway that induced drafts and realizes the steady voltage for the hole of induced drafting can provide stable adsorption affinity, and the conveying of paper is more stable, high-efficient, is applicable to many specifications paper.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the application, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a schematic structural diagram of an offset printing system for variable information online jet printing according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a printing color set of an offset printing system for variable information online jet printing according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a printing color set in an offset printing system for variable information online printing according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a jet printing assembly in an offset printing system for variable information online jet printing according to an embodiment of the present disclosure;
FIG. 5 is a top view of the paper of FIG. 4, with the direction of the arrows being the direction of paper travel;
FIG. 6 is a schematic structural diagram of a transfer printing roller for inkjet printing in an offset printing system for variable information online inkjet printing according to an embodiment of the present disclosure;
FIG. 7 is a side cross-sectional view of FIG. 6;
fig. 8 is a schematic structural diagram of a suction plate in an offset printing system for variable information online jet printing according to an embodiment of the present disclosure.
Reference numerals:
1-a paper transfer roller for spray printing; 11-air suction holes; 12-a roller body; 13-a suction plate; 14-an air suction groove; 15-a suction nozzle; 2-a jet printing component; 21-a bottom plate; 22-a first spray head; 23-a second spray head; 3-jet printing detection component; 4-curing the assembly; 5-printing a paper transfer roller; 6-rubber roller; 7-a plate cylinder; 8-print detection assembly.
Detailed Description
The preferred embodiments of the present application will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the application serve to explain the principles of the application.
Example one
The embodiment provides an offset printing system for variable information online jet printing, and the offset printing system comprises a printing color group and a curved surface jet printing color group, wherein the curved surface jet printing color group comprises a jet printing paper transfer roller 1 and a jet printing assembly 2 arranged on the outer peripheral surface of the jet printing paper transfer roller 1, and the jet printing assembly is shown in fig. 1 to 8.
Compared with the prior art, the offset printing system for variable information online jet printing provided by the embodiment adds a new printing color set on the basis of the printing color set of the existing offset printing system, carries out innovative design on the structure of the printing color set, removes all the rubber roller and the printing plate roller above the rubber roller, leaves a space for installation, and installs the jet printing component 2 (for example, the high-speed jet printing component 2) above the paper conveying roller of the new printing color set, thereby realizing the operation of online variable information real-time jet printing on the printed matter in the printing process of the offset printing system.
The offset printing system for variable information online jet printing provided by the embodiment effectively combines the processes of the inkjet printer and the offset printing system, can finish real-time jet printing of variable information under the condition that the working speed of the offset printing system is 10000-.
It should be noted that, in the offset printing system for variable information online jet printing, the printing color group uses the unit of the original factory of the printing machine, and is in seamless butt joint with the existing printing machine, and the efficiency, precision and operation effect of the equipment are not affected.
As for the structure of the inkjet printing assembly 2, specifically, it includes a base plate 21, a head assembly provided on the base plate 21, and an ink supply assembly connected to the head assembly, and the ink supply assembly contains ink (for example, LED UV ink).
In order to improve the jet printing quality and production efficiency of paper, the nozzle assembly comprises a plurality of nozzles, for example, high-speed high-precision piezoelectric nozzles, and the spray holes on the plurality of nozzles are staggered along the paper feeding direction.
Illustratively, the nozzle assembly is a dual-spliced nozzle, and comprises a first nozzle 22 and a second nozzle 23 which are staggered along the paper feeding direction, so that the first nozzle 22 and the second nozzle 23 which are staggered enable the falling points to be crossed back and forth, the physical resolution is changed from the original single head (600Dpi) to a double head (1200Dpi), and due to the increase of the physical resolution, when the jet hole of one nozzle (the first nozzle 22 or the second nozzle 23) fails in the jet printing process, ink cannot be discharged, and the quality of the jet printing cannot be reduced. In addition, in terms of the jet printing speed, the physical resolution is 1200dpi, the paper feeding direction can use the lower resolution jet printing than the prior single head, and the jet printing speed can be improved by more than one time. In addition, the low resolution in the paper feeding direction greatly reduces the use frequency of piezoelectric ceramics in the spray head and prolongs the service life of the spray head.
In order to properly adjust the relative positions of the plurality of nozzles, the bottom plate 21 is a split structure and comprises a plurality of sub-plates, two adjacent sub-plates are detachably connected, each sub-plate is provided with one nozzle, and the sub-plates correspond to the nozzles one to one. Like this, through the relative position of adjusting two adjacent daughter boards, can further adjust the relative position of the shower nozzle on two adjacent daughter boards to make the orifice on the shower nozzle realize accurate counterpoint.
It should be noted that, in order to ensure the quality of the jet printing, the distance between the paper and the plurality of nozzles is required to be equal, in the above nozzle assembly, the axes of the nozzles coincide with the normal of the arc surface of the jet printing paper transfer roller 1, that is, the plurality of nozzles are spliced along the position where the normal of the arc surface of the jet printing paper transfer roller 1 coincides, see fig. 4. This is because, in the application of the jet printing plane medium, usually two or more nozzles are spliced in a horizontal parallel manner, but the splicing is performed in a horizontal parallel manner, and in the movement of the arc surface, when the paper passes through two adjacent nozzles, the distance between the paper and the surface of the nozzles is not consistent, which may cause the variable information of the jet printing to appear fuzzy and smear effects, and cannot meet the quality requirements.
In order to ensure that the position of ink when falling to the paper surface is accurate, the central lines of a plurality of nozzles are arranged along the vertical direction, because, after the ink is emitted from the nozzles, the ink is in a free motion state and moves along the linear direction by virtue of the emission speed, however, the ink can be influenced by gravity at the same time, the axis of the jet printing component 2 is arranged along the vertical direction, the motion direction of the ink is consistent with the gravity direction, the ink can not be influenced by gravity to shift, so that the position is more accurate when the ink falls to the paper or the film surface, and the jet printing effect is better.
It should be noted that, when the plurality of nozzles are symmetrically and uniformly distributed with respect to the center line, the center line of the plurality of nozzles corresponds to the center line of the inkjet printing assembly 2, that is, in this case, the inkjet printing assembly 2 is disposed in the vertical direction.
It is worth noting that, when the paper is carried on the jet printing paper conveying roller 1, because there is no pressure of the rubber roller in the original printing color group, it can be in unstable and uncontrollable conveying state, however, it requires the paper to be completely attached on the surface of the jet printing paper conveying roller 1 during jet printing, so as to achieve good jet printing effect, therefore, the outer peripheral surface of the jet printing paper conveying roller 1 is provided with a plurality of rows of air suction holes 11, the rows of air suction holes 11 are uniformly arranged, the interior of the jet printing paper conveying roller 1 is provided with a plurality of air suction channels, each air suction channel is communicated with at least one row of air suction holes 11, the air outlet of the air suction channel is connected with a negative pressure device (not shown in the figure), see fig. 6. Like this, take out the air in the passageway that induced drafts through negative pressure device, form the vacuum in the passageway that induced drafts, hole 11 that induced drafts is as the air inlet of the passageway that induced drafts, its inside wind direction is from the paper to the passageway that induced drafts, thereby can adsorb the paper in the transportation process, make its attached in spouting seal biography paper roller 1's surface, prevent that the paper from skidding or fly up, and simultaneously, adopt hole 11 and the channel cooperation that induced drafts, can also avoid adopting ordinary pressure paper wheel (for example, rubber pinch roller) contact fish tail seal surface or printing ink to destroy the problem of printing effect under the not completely dry condition. In addition, the hole 11 that induced drafts is connected with negative pressure device through the passageway that induced drafts, and negative pressure device's atmospheric pressure cushions in the passageway that induced drafts and realizes the steady voltage for hole 11 that induced drafts can provide stable adsorption affinity, and the conveying of paper is more stable, high-efficient, is applicable to many specifications paper.
It should be noted that, the air outlet of the air suction channel is one and is located at one end of the air suction channel, or the air outlets of the air suction channel are two and are located at two ends of the air suction channel. In addition, the number of the air suction channels is the same as the row number of the air suction holes 11, and each air suction channel corresponds to one row of the air suction holes 11; or the number of the air suction channels is less than the number of rows of the air suction holes 11, and each air suction channel corresponds to at least two rows of the air suction holes 11.
Specifically, the above-mentioned jet printing paper conveying roller 1 includes roller body 12 and the board 13 (for example, stainless steel plate) that induced drafts of locating roller body 12 outer peripheral face, and roller body 12 can be dismantled with the board 13 that induced drafts and be connected, and the hole 11 that induced drafts is located on the board 13 that induced drafts, and a plurality of grooves 14 that induced drafts that correspond with the hole 11 that induced drafts are seted up to roller body 12's outer peripheral face, and the groove 14 that induced drafts constitutes the passageway with the board 13 that induced drafts of the groove 14 opening part that induced drafts. The air suction channel adopts a split structure because the process of arranging the air suction groove 14 on the roller body 12 is relatively simple compared with the process of arranging the channel with the opening on the roller body 12; meanwhile, the roller body 12 and the air suction plate 13 are arranged to be detachable, and when the air suction hole 11 in the air suction plate 13 is blocked, the air suction plate 13 can be detached to be cleaned or replaced.
In order to facilitate the connection of the air suction channel and the negative pressure device, part or all of the air suction channels are connected with the negative pressure device through the air suction nozzles 15, one ends of the air suction nozzles 15 are communicated with the air outlet of the air suction channel, and the other ends of the air suction nozzles 15 are connected with the air inlet of the negative pressure device.
Considering that the printing of variable information can not cover the whole peripheral surface of the jet printing paper transfer roller 1, therefore, the shape of the air suction nozzle 15 is a ring shape with a gap, the end part of the jet printing paper transfer roller 1 is partially covered by the air suction nozzle 15 and is in sliding connection with the jet printing paper transfer roller 1, thus, in a plurality of air suction channels, only the part covered by the air suction nozzle 15 can be communicated with a negative pressure device, and the paper or the film needing to be jet printed can be absorbed by centralized air suction force under the condition that the air suction force of the negative pressure device is not changed.
Considering from the angle of gravity and jet printing position, the jet printing position is located in the upper half of the jet printing paper transfer roller 1, the air suction nozzle 15 is in a semi-annular shape, the air suction nozzle 15 covers the upper half of the jet printing paper transfer roller 1, and an air suction channel located in the upper half of the jet printing paper transfer roller 1 is connected with a negative pressure device through the air suction nozzle 15.
In order to ensure that the variable information of the jet printing is accurate and has no quality problem, the offset printing system further comprises a jet printing detection assembly 3 arranged on the outer peripheral surface of the jet printing paper transfer roller 1, the jet printing detection assembly 3 is positioned behind the jet printing assembly 2 along the paper feeding direction, and the jet printing detection assembly 3 is exemplarily a high-speed industrial linear array camera. The jet printing detection component 3 is adopted to collect images of the variable information after jet printing in real time, and jet printing detection software is used for identifying the variable information on the images and then comparing the variable information with database data in real time, so that the accuracy of the jet printing variable information is ensured, no quality problem exists, and when the quality problem is found, an alarm is given to a user in real time so as to correct the quality problem in time.
In order to firmly print variable information on the surface of the paper, the offset printing system further comprises a curing assembly 4, for example, a UV curing assembly 4, which is arranged on the outer peripheral surface of the jet printing transfer cylinder 1, wherein the curing assembly 4 is positioned behind the jet printing assembly 2 along the paper feeding direction, and is used for curing the ink jetted on the paper in real time. And the LED UV special light source is adopted to carry out real-time curing on the LED UV ink, so that the variable information is firmly printed on the surface of the paper.
As for the relative positions of the jet printing detection unit 3 and the curing unit 4, since the relative positions are close to each other, the relative positions have little influence on the entire offset printing system, but the curing unit 4 is located behind the jet printing detection unit 3 in the paper feeding direction from the rationality of the installation position and space.
For the structure of the printing color group, specifically, the printing color group comprises a printing paper transfer roller 5, a rubber roller 6 positioned above the printing paper transfer roller 5 and a printing plate roller 7 positioned above the rubber roller 6, the rubber roller 6 and the printing paper transfer roller 5 are pressed together during printing, paper is firmly pressed on the printing paper transfer roller 5, and ink transfer is completed, so that the printing effect is realized, and the structure is shown in fig. 2.
It will be appreciated that, in order to ensure accurate and quality-free printing of information, the offset printing system further comprises a printing detection assembly 8 for detecting the printing information, the printing detection assembly 8 is arranged on the outer circumferential surface of the jet printing transfer cylinder 1, which is located in front of the jet printing assembly 2 in the paper feeding direction from the viewpoint of rationality of the structural layout, and the printing detection assembly 8 is illustratively a high-speed industrial line camera. The printing detection component 8 is adopted to collect images of printed printing information in real time, printing detection software is used for identifying the printing information on the images and then comparing the printing information with the template images in real time, so that the accuracy of the printed information is ensured, no quality problem exists, and when the quality problem is found, an alarm is given to a user in real time so as to correct the quality problem in time.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application.
Claims (3)
1. An offset printing system for variable information online jet printing is characterized by comprising a printing color group and a curved surface jet printing color group;
the curved surface jet printing color group comprises a jet printing paper transfer roller and a jet printing assembly arranged on the peripheral surface of the jet printing paper transfer roller;
the printing color group comprises a printing paper transfer roller, a rubber roller and a printing plate roller;
the periphery of the jet printing paper transfer roller is provided with a plurality of rows of air suction holes, a plurality of air suction channels are arranged in the jet printing paper transfer roller, and the air suction channels are uniformly arranged along the circumferential direction of the jet printing paper transfer roller; each air suction channel is communicated with at least one row of air suction holes, and an air outlet of each air suction channel is connected with a negative pressure device;
the plurality of air suction channels are connected with the negative pressure device through the air suction nozzles;
the air suction nozzle is in an annular shape with a gap, and partially covers the end part of the jet printing paper transfer roller and is in sliding connection with the jet printing paper transfer roller;
in the plurality of air suction channels, the part covered by the air suction nozzle is communicated with the negative pressure device;
the jet printing paper conveying roller comprises a roller body and an air suction plate arranged on the outer peripheral surface of the roller body, wherein the roller body is detachably connected with the air suction plate, the air suction holes are formed in the air suction plate, a plurality of air suction grooves corresponding to the air suction holes are formed in the outer peripheral surface of the roller body, and the air suction grooves and the air suction plate at the opening of the air suction grooves form an air suction channel;
the jet printing assembly comprises a bottom plate, a spray head assembly arranged on the bottom plate and an ink supply assembly connected with the spray head assembly, wherein ink is filled in the ink supply assembly; the spray head assembly comprises a plurality of spray heads, and spray holes on the spray heads are arranged in a staggered mode along the paper feeding direction;
the offset printing system also comprises a jet printing detection component arranged on the peripheral surface of the jet printing paper transfer roller and a curing component arranged on the peripheral surface of the jet printing paper transfer roller; along the paper feeding direction, spout seal subassembly, spout seal detection subassembly and solidification subassembly and set gradually.
2. The offset printing system for variable information on-line jet printing according to claim 1, wherein the axis of the nozzle coincides with the normal of the curved surface of the jet printing paper transfer roller.
3. The offset printing system for variable information on-line jet printing according to claim 1, wherein the axis of the head assembly is disposed in a vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010733433.3A CN111845052B (en) | 2020-07-27 | 2020-07-27 | Offset printing system for variable information online jet printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010733433.3A CN111845052B (en) | 2020-07-27 | 2020-07-27 | Offset printing system for variable information online jet printing |
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| Publication Number | Publication Date |
|---|---|
| CN111845052A CN111845052A (en) | 2020-10-30 |
| CN111845052B true CN111845052B (en) | 2021-08-31 |
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| CN202010733433.3A Expired - Fee Related CN111845052B (en) | 2020-07-27 | 2020-07-27 | Offset printing system for variable information online jet printing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115179668B (en) * | 2022-07-12 | 2024-03-12 | 北京利泰克科技有限公司 | Multi-variable information data jet printing system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796118A (en) * | 2004-12-28 | 2006-07-05 | 佳能株式会社 | Inkjet recording apparatus and inkjet recording method for complement recording |
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| DE102015203909A1 (en) * | 2015-03-05 | 2015-04-23 | Heidelberger Druckmaschinen Ag | Method of printing a sheet in a printing system |
| CN105774280A (en) * | 2016-03-28 | 2016-07-20 | 新乡市新机瑞博印刷机械有限公司 | Method and system for printing variable graphic and text information on printed product |
| US10493746B2 (en) * | 2016-08-10 | 2019-12-03 | Koenig & Bauer Ag | Machine arrangement with printing unit for the sequential processing of sheet-type substrates |
| CN210047197U (en) * | 2019-03-26 | 2020-02-11 | 河北平安纸箱包装机械有限公司 | Ink printing machine convenient to clean |
| CN110077102B (en) * | 2019-04-22 | 2020-12-15 | 北京中科纳晨科技有限公司 | Cold stamping printing equipment and cold stamping printing method |
| CN110901221A (en) * | 2019-12-11 | 2020-03-24 | 雷超 | High-speed printing equipment for labels |
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| CN1796118A (en) * | 2004-12-28 | 2006-07-05 | 佳能株式会社 | Inkjet recording apparatus and inkjet recording method for complement recording |
| CN202021922U (en) * | 2011-02-24 | 2011-11-02 | 江苏昌昇集团股份有限公司 | On-line inkjet printing mechanism of offset press |
| CN108859405A (en) * | 2017-05-08 | 2018-11-23 | 海德堡印刷机械股份公司 | Printing machine for the method for reliable delivery printable fabric and for implementing the method |
| CN208376303U (en) * | 2018-05-22 | 2019-01-15 | 江苏大亚印务有限公司 | Drum-type ink jet numbering machine |
| CN109551887A (en) * | 2018-12-26 | 2019-04-02 | 天津长荣数码科技有限公司 | A kind of sheet-fed three times diameter code-spraying printer |
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