CN103448380A - Light deflection in container printing - Google Patents
Light deflection in container printing Download PDFInfo
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- CN103448380A CN103448380A CN2013102086144A CN201310208614A CN103448380A CN 103448380 A CN103448380 A CN 103448380A CN 2013102086144 A CN2013102086144 A CN 2013102086144A CN 201310208614 A CN201310208614 A CN 201310208614A CN 103448380 A CN103448380 A CN 103448380A
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- Prior art keywords
- container
- light
- printing
- optical element
- light source
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
- B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
- B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
- B41J11/00214—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using UV radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
- B41J11/00218—Constructional details of the irradiation means, e.g. radiation source attached to reciprocating print head assembly or shutter means provided on the radiation source
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
- B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ink Jet (AREA)
- Coating Apparatus (AREA)
Abstract
The invention relates to an apparatus for printing container with light reactive media, which includes at least one printing station, at least one curing station containing at least one light source for curing printed container with light reactive media which is arranged behind the printing station as well as a conveying device for transporting containers. The curing station comprises at least one optical element for deflecting light produced from light source, and at the printing station or beside the printing station, the optical element can deflect or/and parallelize light at least partially to the light reactive printed container printed at the printing station. In addition, the invention also relates to a method for printing container with light reactive media, and the light reactive printed container is cured by light from light source, and before the light arrives the light reactive printed container, light is deflected or/and parallelized by the optical element outside the light source partially.
Description
Technical field
The present invention relates under a kind of situation using the especially ultraviolet light beam of light (ultraviolet light) for the apparatus and method with photoreactivity dielectric printing container or object, so that solidify the container printed article produced with the photoreactivity medium
Background technology
In addition, the photoreactivity medium is interpreted as printing-ink or ink (as it for example being used in serigraphy or UV inkjet printing) and paint, as varnish, finish paint, sticky paint, scratch resistant paint and/or functional paint or the jointing material pasted for label sticking or member.
In addition, the concept of " printing " also should comprise the possibility of " japanning ".
Below, the concept of printing ink, printing-ink, paint, jointing material or ink always is interpreted as the photoreactivity medium for container printing or container japanning.
At this, for example can use ultraviolet light in order to solidify the photoreactivity medium, for example described in DE102006001223A1, DE69833974T2 or DE102009053431A1 like that.It is essential solidifying, in order to for example control crosslinked on substrate surface of ink.At this, as the light source for this so-called UV photocuring, also can use the light emitting diode (LED) of LED array or LED strips.At this, typical LED for example is described in DE10158395B4 or DE10333907A1.
The radiation characteristic of LED lamp can strongly be dispersed as it is used to the UV photocuring, and for example can have until 120 ° or larger angle of radiation.In addition, this adversely causes as follows, that is, along with the increase of the distance of relative LED lamp, luminous power acutely descends.Therefore, emergent power loss and the scattered light of not expecting.The photoreactive printing-ink of container printing may solidify deficiently and for example distribute.In addition, for example ultraviolet light may for example be fallen the print nozzles of the print head used for printing containers of ink-jet printer directly or indirectly, and print nozzles is because solidifying of printing-ink blocked.
Summary of the invention
Therefore, the objective of the invention is to illustrate a kind of apparatus and method photoreactivity medium is curing for the situation in printed substrates especially container.
According to the present invention, this realizes by the device according to claim 1 with according to the method for claim 17.Favourable embodiment and improvement project are the themes of dependent claims.
At this, for the device with photoreactivity dielectric printing container can have at least one printing station, at least one be arranged in after printing station for curing station that photoreactive container printed article and/or container japanning section are solidified and for the conveying equipment of cask between printing station and curing station.
Curing station can have at least one light source, and the optical element with at least one light produced by light source for deflection and/or parallelization, its at the printing station place or printing station is other can be by light at least in part towards photoreactive container printed article and/or the section's deflection of container japanning and/or the parallelization of the container by printing station printing or japanning.
At this, the concept of " light deflection " can comprise the possibility of the redistribution of distribution of light equally, and wherein, for example the distribution of light that is point-like of LASER Light Source can be converted into the plane distribution of lineal layout or the bidimensional of one dimension.Yet the concept of " light deflection " also can or only can comprise the deflection in following meaning, that is, the optical axial of light path is deflected, and that is to say optical axial with light path before optical element and direction afterwards changes.
This has following advantage,, but light is more efficient ground and conveniently point to photoreactive container printed article to be hardened and/or container japanning section and can obtain the quality of the raising of printing or japanning in addition, because for example the integrality of printing is improved by the mixing of not expecting of avoiding printing-ink, because printing-ink or paint solidify quickly.
The netted characteristic of photoreactivity medium (especially for example the droplet size of printing-ink, for example apply by means of ink-jet printing process) therefore can conveniently be controlled.
Advantageously, therefore hardening time or the luminous power needed can be reduced equally, for example can be less than 2ms, 5ms or 10ms hardening time, because lose less light beam power.
In particular, the quality of the printing of smaller container can be enhanced due to the more suitable control of the range of exposures of more suitable and the deflection power more efficient or the curing light that solidify light.
Scattered light can be reduced, and then for example following danger is reduced, that is, light falls undesirably on possible print nozzles and it is because solidifying of photoreactive printing-ink blocked.
Light source can be ultraviolet light source, the system for example formed by one or more light emitting diodes, and can preferably be transmitted in the light in the wave-length coverage between 353nm to 445nm.
Yet can use equally the light of other wave-length coverage, the light of for example coordinating with the photochemical properties of used photoreactive printing-ink or paint.
Can use laser equally as light source, ultraviolet laser for example, it preferably is transmitted in the light in the wave-length coverage between 354nm to 445nm.
At this, the mean power of LASER Light Source is preferably greater than 1000mW and laser pulse ground or operation continuously also referred to as rated power.
The scattered light that the use of LASER Light Source advantageously will not expected reduces to minimum degree.In addition, relative other light source of LASER Light Source is characterised in that the higher life-span and makes and becomes possibility than the compact structure type.
Lens, cylindrical lens or the speculum that as optical element, can use free shape lens, prism, Fresnel Lenses, plano-convex be the polygon speculum for example.
Preferably, optical element can be in outside light source, that is to say and is not integrated in light source.
The shape of free shape lens can be optimized by Digital Simulation, thereby for example for example, for different container printing themes (Druckmotiv) (in the situation of different product lines), can use the different free shape lens of optimizing for container printing theme, it can produce distribution of light and/or the range of exposures that is matched with cell therefor printing theme, for example, with 100x100dpi or higher resolution ratio.
Optical element can be attached troops to a unit aperture, that is to say that the beam path of the light for example sent by light source sets out, and aperture can be in after optical element or before.In addition, this can advantageously further reduce the scattered light of not expecting.
Optical element can rotate around at least one axis, and it not only can be parallel to but also can be not parallel to the gravity direction rotation, for example, with the angle between 0 ° to 60 °.Therefore, for example for the light deflection that will be produced by light source to treating that motion in curing container printed article or container japanning section can advantageously be associated with the container motion and that is to say that container motion and/or container on throughput direction rotate, in order to can obtain the solidifying of more efficient of container printed article, therefore and can reduce the residence time of container at the device for photoreactivity dielectric printing container, and finally can obtain higher handling rate, that is to say the ratio of the container of printing.
In addition, optical element can change aspect its position, for example, by means of guided bearing section or by a plurality of single fixed positions, in order to change by for example spacing between light source and optical element the distribution of light that can optimize extraly light source, or in view of printing theme optimization range of exposures to be illuminated or to be solidified.
Light source is arranged in perpendicular to the direction of motion of container or for the plane of the throughput direction of the conveying equipment of cask with can being parallel to printing station or print head, so that also can make the structure type for the compacter orthoscopic of the device of the printing of container become possibility.
Following is also to imagine, that is, light source directly is integrated in printing station.
At this, for the preferred throughput direction of cask, can preferably be in the plane perpendicular to gravity direction.In addition, container can be erected to, betransported with lying low hangingly or, and is rotated during the transmission.
Similarly, the following arrangement of light source and printing station is also to imagine, wherein, they not are arranged parallel to each other, so as can to realize the turn-around machine form with a plurality of printing stations and curing station for carry out the compacter embodiment radially of the device of printing containers with photoreactive printing-ink or paint.
Curing station can have the optical element of a plurality of identical or different structure types.
At this, each independent optical element can rotate around the run-on point that can freely select, not only can but also can rotate around the axis of the direction of motion that is not orthogonal to container around the axis of the direction of motion perpendicular to container, and its position can change, for example, via guided bearing section or by a plurality of independent fixed positions, in order to change and can optimize in view of printing theme to be illuminated or to be solidified distribution of light or the range of exposures of light source by the spacing between optical element.
As the example to this, mentioned a kind of for the device with curing station with photoreactivity dielectric printing container, it can have the first optical element and the second optical element, wherein, the first optical element can so be implemented,, but the light that its parallelization is sent by light source, and the second optical element can rotate and make the light of parallelization can be towards treating curing container printed article deflection.
In addition, this has following advantage, that is, with the light of the light source of the angle of radiation of dispersing, by more efficient ground, utilized, because the light of dispersing can be by the first optical element parallelization.
Following is possible equally,, curing station for the device with photoreactivity dielectric printing container can have first speculum that can move and second speculum that can move, wherein, the light sent by light source can be by the first mirror deflection to the second speculum, and the second speculum can so configure, that is, it can be towards treating that curing container printed article focuses on ground, parallelization ground or deflection light divergently.
Advantageously can in the situation poor at little speculum rotational angle, obtain so large beam deflection angle variation, for example beam deflection angle is changed to many times for example 2 times, 3 times, 4 times or more times that the speculum rotational angle changes.
Following is also to imagine,, in described exemplary device, curing station can have the 3rd optical element, three optical element adjacent with the first speculum lens of plano-convex for example for example, it can be by the light ray parallelization ground that sent by light source, divergently or deflect on the first speculum with focusing on.
At this, can not only around the axis of the direction of motion perpendicular to container and also can be around the axis of the direction of motion that is not orthogonal to container that rotate and motion optical element its position changeable can be associated with as already mentioned the container motion and that is to say the container motion that is associated with on throughput direction and/or the rotation of container.
In addition, but same self ground of light source around the axis of the direction of motion perpendicular to container and can rotate around the axis of the direction of motion that is not orthogonal to container and can change aspect its position and its motion association that is to say the container motion that is associated with on throughput direction and/or the rotation of container in the container motion.
Curing station can have a plurality of light sources equally, for example for the first light source of solidifying photoreactive container printed article and be arranged in the secondary light source after the first light source on the container transport direction, it can almost completely harden through curing photoreactive container printed article.
At this, for the secondary light source of the photoreactive container printed article that almost completely hardens, there is at least one optical element for the light of deflection and/or parallelization secondary light source as the first light source.
Can there are a plurality of each printing stations with a curing station of attaching troops to a unit for the device with photoreactivity dielectric printing container, wherein, the arrangement of printing station and curing station can so be implemented, that is, on the direction of container transport, each printing station can be followed by curing station.
Such arrangement replaced of printing station and curing station for example allows to come with the photoreactivity medium multistage method of printing containers.
Therefore, for example container can print by photoreactivity medium and/or the different printing theme with different colours in a plurality of steps, and after each print steps the container printed article of cured coated.
At this, for each printing theme or every kind of printing-ink after print steps, the irradiation of the light of the curing station of attaching troops to a unit can be matched with corresponding printing theme or printing-ink aptly, for example by by the Wavelength matched photoreactive characteristic in printing-ink of light source in order to solidify quickly, or pass through attached troops to a unit curing station light source light corresponding coupling deflection/or parallelization and/or guidance range of exposures is matched with to extended length, structure and/or the position of container printed article.
In addition, described exemplary device form not only can be embodied as the orthoscopic system but also can be embodied as the turn-around machine with a plurality of printing stations and curing station.
In order to avoid polluting for example due to dust and/or ink mist or printed medium mist, curing station can have the disc for example formed by glass or plastics of the printing opacity that can change, and it can make the optical element that solidifies station avoid above-mentioned pollution.
In the method according to this invention for photoreactivity dielectric printing container, container can utilize the photoreactivity medium to print, and and then photoreactive container printed article solidifies by the light of light source, wherein, light can come deflection and/or parallelization by the optical element be in outside light source at least in part before arriving photoreactive container printed article.
In addition, method with a plurality of printings and curing schedule is to imagine as already mentioned, wherein, container prints with photoreactivity medium and/or the different printing theme of different colours successively, and the container printed article through applying can be cured and/or can almost completely be hardened after each print steps.
In addition, possible in this way in the following example, that is, can be other after with the first light source, solidifying photoreactive container printed article/other secondary light source realizes sclerosis almost completely.
Light source can be static and container moves with respect to light source, for example, by means of vessel feeding apparatus.Container can rotate and irradiate with the light for the curing vessel printed article of light source during it is carried.At this, for example orthoscopic of the velocity of rotation of container, light source power and container and/or the optical element that can move or the sine-shaped motion time limit can match each other or be associated and need not to be unalterable.
Thus, can realize solidifying the intensity of light or more suitable the determining of dosage.The possible number of revolutions of container in carrying highway section can freely be adjusted.
Advantageously, solidifying of container printed article can be for example in service in (pitch time that namely can not utilize between a plurality of printing stations) realization during " Dead Time " at beat.
The accompanying drawing explanation
Wherein:
Fig. 1: show the device with photoreactivity dielectric printing container;
Fig. 2: show the device with photoreactivity dielectric printing container;
Fig. 3: show the device with photoreactivity dielectric printing container;
Fig. 4: show curing station;
Fig. 5: show optical element;
Fig. 6: show curing station;
Fig. 7: the arrangement that shows a plurality of printing stations and curing station;
Fig. 8 a: show the light redistribution of one dimension;
Fig. 8 b: show two-dimentional light redistribution;
The specific embodiment
Fig. 1 has illustratively shown a kind of for the device with photoreactivity dielectric printing container, and it can have printing station 101 and light source 100.Printing station can be for example by means of printing beam 102 with photoreactive printing-ink printing containers 104.At this, light source 100 can for example send the light of the distribution of light of for example dispersing with definite distribution of light 107.Optical element 106 for example the free shape prism can be by the light of light source 100 at least in part in direction upper deflecting and/or the parallelization of container printed article 103 and initial distribution of light 107 is converted into to new distribution of light 108, its range of exposures 109 can be matched with container printed article 103, so that curing vessel printed article 103 advantageously.
In order to obtain solidifying uniformly of photoreactive container printing 103, container 104 can be rotated, and for example with what can set in advance, turns to 105 and the velocity of rotation that can set in advance.
Fig. 2 has illustratively shown a kind of for the device with photoreactivity dielectric printing container, and it can have printing station 201 and light source 200.Printing station can be for example by means of printing beam 202 with photoreactive printing-ink printing containers 204.Light source 200 for example can have the first optical element 207 herein, and planoconvex spotlight for example, for the light ray parallel that will be sent by light source 200.
The distribution of light 213 of parallelization can be mapped to the second optical element 206 for example on lens so that can be at least in part at the direction upper deflecting light of container 204 or container printed article 203.The second optical element 206 can be for example can be around the run-on point of freely selecting and can be around vertical or be not orthogonal to the axis ground rotation of the direction of motion of container on direction 209.
Turned position according to the second optical element 206 can produce different ranges of exposures.This is illustratively shown to two ranges of exposures 210 (for the position illustrated of the second optical element) and 211 (range of exposures illustratively illustrated in the situation of the rotation of the example of the second optical element of the rotation direction possible according to it 209) herein.
Extraly, the second optical element 206 can be attached troops to a unit aperture 208, after the beam path of the light that it is for example sent by light source 200 as shown sets out and can be in the second optical element 206, for the scattered light that advantageously further minimizing is not expected.
In order to obtain solidifying uniformly of photoreactive container printed article 203, container 204 can be rotated, and for example with what can set in advance, turns to 205 and the velocity of rotation that can set in advance.
Fig. 3 has illustratively shown a kind of for the device with photoreactivity dielectric printing container, and it can have printing station 301, light source 300, the first optical element 307, the second optical element 306 and the 3rd optical element 316.
At this, the light sent by light source 300 can be at first by for example planoconvex spotlight parallelization further be transmitted to for example the first speculum of the second optical element 306 of the first optical element 307.Light 311 can be transmitted to for example the second speculum of the 3rd optical element 316 from the second optical element 206.The 3rd optical element 316 finally can treated the direction upper deflecting light of curing container printed article 303.
Not only the second element 306 but also three element 316 can be to move, and especially can rotate around axis vertical or that be not orthogonal to the direction of motion of container.
Thus, for example the less turned position by optical element changes or rotational angle for example changes and can realize that by 1 ° to 5 ° light deflection angle greatly changes for example by 10 ° to 70 °.For example as shown, at the differential seat angle between the main direction of propagation of beam path 312 and 313, can be in the 3rd the optical element for example primary importance 308 of the first and second speculums and the several times of the outer corner difference between the second place 309.
Similarly, the position of optical element can be to change, for example, by (unshowned) a plurality of fixed positions (Halteposition) and/or guided bearing section.
In order to obtain solidifying uniformly of photoreactive container printed article 303, container 304 can be rotated, and for example with what can set in advance, turns to 305 and the velocity of rotation that can set in advance.
Fig. 4 has illustratively shown curing station, and it can have light source 400, the first optical element 401, the second optical element 402 and the 3rd optical element 419 as shown in Figure 3.
At this, the light sent by light source 400 can be at first by for example planoconvex spotlight parallelization be transmitted to for example the first speculum of the second optical element 402 of the first optical element 401.Light 414 can be transmitted to for example the second speculum of the 3rd optical element 419 from the second optical element 206.The 3rd optical element 419 finally can treated the direction upper deflecting light of curing container printed article 407.Not only the second element 402 but also three element 419 can be to move, and especially can rotate around axis vertical or that be not orthogonal to the direction of motion of container.
The motion of optical element and therefore the motion of the light of deflection can be matched with the motion through the container 413 of printing, especially be matched with its direction of motion 410 and/or it rotates 406.Therefore, for example container 413 can be in the first container position 408 constantly first, wherein, the 3rd optical element 419 can be in the exemplary second place 416, by the 3rd optical element 419, through the light 417 of deflection, can fall on first border 411 of printing theme 407 of container 413.
During container 413 can move to position 409 by position 408, control and rotation that be associated with the container motion that for example can be by the 3rd optical element 419 is by turning to 404 by position 416, to go to the position 415 of the 3rd optical element 419, follow container 413 through the light of deflection, thus make printing theme 407 can be from the first border 411 until the second boundary 412 little by little by light, irradiated equably.In second container position 409, for example the 3rd optical element 419 can be in the first position 415, and through the light 418 of deflection, can fall on the second boundary 412 of printing theme.
Efficient and suitable the solidifying of the photoreactive container printed article on the container that by this way, can advantageously realize moving.
Similarly, the position of optical element can be to change, for example, by (unshowned) a plurality of fixed positions and/or guided bearing section.
Fig. 5 illustratively shows the arrangement of the optical element that comprises beam path, as it similarly can use in solidifying station.At this, the first optical element 500 for example lens can for example divergently be transmitted to the light of (unshowned) light source for example the first speculum of the second optical element 503.The second optical element 503 can by convergence of rays be transmitted to the 3rd optical element 510 for example on the second speculum.The 3rd optical element 510 finally can produce beam path convergence or that focus on, utilize its for example Billy can advantageously more appropriately irradiate photoreactive container printed article with parallel beam path.
The 3rd optical element 510 can be to move, and for example can around axis vertical or that be not orthogonal to the direction of motion of container, rotate with the rotation direction 506 of example.At this, Fig. 5 has shown two possible beam paths for the turned position of two examples of the 3rd optical element.The beam path 508 of the first exemplary focusing can be produced in the first turned position 504 of the 3rd optical element 510, and the beam path 507 of the second exemplary focusing can be produced in the second turned position 505 of the 3rd optical element.
In addition, the second optical element 503 can be to move equally, and for example can around axis vertical or that be not orthogonal to the direction of motion of container, rotate with the rotation direction 502 of example, the position of optical element is to change, for example, by (unshowned) a plurality of fixed positions and/or guided bearing section.
Possibility for the focusing of the curing light of photoreactive container printed article advantageously allows as follows equally,, can be solidificated in efficiently the photoreactive printing theme on less container, comparing it may be in the situation of using parallel light and be only possible.Similarly, the beam intensity increased by focusing allows the use of special ink, and it requires the minimum strength reacted with being used for light reaction.In addition, another advantage of focusing for example is minimizing of the scattered light do not expected, so that for example avoid causing in print nozzles due to curing printed medium the obstruction of print head.
Fig. 6 has illustratively schematically shown the curing station that can have the light source that can move.At this, light source for example can rotate around axis vertical or that be not orthogonal to the direction of motion of container with exemplary rotation direction 604, and the motion of light source can be associated with the motion through the container 607 of printing.This container can for example have the direction of motion 606 and rotate 605, thus first constantly container can be in position 608 and after the moment be in position 609.
Light source can first constantly for example be in the first position 603 and light by the first optical element 602, for example deflect on the primary importance on printing theme 610 on planoconvex spotlight parallelization 612 ground.After second constantly, light source can be in the second place 600 and light and for example deflect on the second place on printing theme 610 on planoconvex spotlight parallelization 611 ground by the first optical element 601, its can with the primary importance difference on printing theme 610 of irradiating in the first situation constantly.
Fig. 7 has illustratively shown the arrangement of a plurality of printing stations and curing station.Solidify station and for example that is to say that the first light source 702 with attached optical element 703 is attached to the first printing station 701 for can for example there is the first printing station 701, the first with the device of photoreactivity dielectric printing container.First solidify station can be printed for transmitting/tighten through the direction of motion 711 of the conveying equipment of the container of printing the second printing station 704 be connected to the curing station of attaching troops to a unit, it consists of for example secondary light source 706 with attached optical element 705.
This order replaced consisted of printing station and ensuing curing station can realize until the almost printing station of any amount n and curing station.In the example by Fig. 7, container 710 can be at first by the first printing station 701 with the first printing theme 713 and/or the first printing-ink prints and and then printed article is solidified by for example light by optical element 703 deflections of light source 702 in first solidifies station.
Container can turn to 712 further to move on the direction 711 at next printing and curing station rotationally at this, can apply there new printing theme and/or new printing subject layer and/or new printing-ink, until after the printing that pre-determines quantity and solidification process, produce the printing theme of expectation and for example ought be in case of necessity finally can be by extra light source sclerosis printing theme fully/almost entirely.
Fig. 8 a and Fig. 8 b illustratively show possible light redistribution, are using under the situation of laser as the light source for the curing vessel printed article.At this, for the reason of clarity, motion possibility not shown container and/or optical element and printing station in addition.
Fig. 8 a illustratively shows LASER Light Source 801, and it can send the distribution of light 805 that is point-like, and it for example can fan-shapedly scatter for or be converted into the distribution of light that is wire 804 of the one dimension on pending container 803 via optical element 802.
Fig. 8 b illustratively shows LASER Light Source 901, and it can send the distribution of light 905 that is point-like, but its via optical element 902 for example fan-shaped scatter for or be converted into the planar distribution of light 904 that is of two dimension on pending container 903.
In view of integrality, noted as follows, that is, but the feature of different described the examples namely for example structure type of optical element and/or arrangement combination with one another.
Next be 3 pages with 9 accompanying drawings.
At this, record as follows different Reference numerals:
100 light sources
101 printing stations
102 photoreactive printed mediums are the beam of photoreactive printing-ink or printing ink for example
103 printed articles/printing theme
104 through printing/substrate to be printed, for example, through printing/container to be printed
The rotation of the container of 105 substrates or container/rotation/turn to
The optical element of 106 light for the deflection light source
The distribution of light of 107 light in the situation of being sent by light source/initial distribution of light
108 distribution of light after the optical element by for the light of deflection light source
109 ranges of exposures
200 light sources
201 printing stations
202 photoreactive printed mediums are the beam of photoreactive printing-ink or printing ink for example
203 printed articles/printing theme
204 through printing/substrate to be printed, for example, through printing/container to be printed
The rotation of the container of 205 substrates or container/rotation/turn to
206 the second optical elements for deflection light, for example prism
The first optical element of 207 light that sent by light source for parallelization, for example lens of plano-convex
208 apertures
The exemplary possible rotation direction of 209 second optical elements
The range of exposures of 210 positions that illustrate at the second optical element
Shown exemplary range of exposures in the situation of the 211 exemplary rotations of the rotation direction 209 possible according to it at the second optical element
The distribution of light of 212 light in the situation of being sent by light source/initial distribution of light
The light of 213 light sources, in the distribution of light by after the first optical element 207, for example passes through the distribution of light of the lens parallelization of plano-convex
300 light sources
301 printing stations
302 photoreactive printed mediums are the beam of photoreactive printing-ink or printing ink for example
The printed article of 303 containers/printing theme
304 through printing/substrate to be printed, for example, through printing/container to be printed
The rotation of the container of 305 substrates or container/rotation/turn to
306 second optical elements, for example the first speculum
The first optical element of 307 light that sent by light source for parallelization, for example lens of plano-convex
308 the 3rd optical elements in primary importance/turned position, for example the second speculum
309 the 3rd optical elements in the exemplary second place/turned position, for example the second speculum
310 light sources pass through for example light of the lens parallelization of plano-convex of the first optical element
311 that is to say for example beam path between first and second speculum between the second and the 3rd optical element
312 in exemplary primary importance/turned position, by the 3rd optical element beam path after the second speculum for example
313 in the exemplary second place/turned position, by the 3rd optical element beam path after the second speculum for example
314 the 3rd optical elements are the exemplary possible rotation direction of the second speculum for example
315 second optical elements are the exemplary possible rotation direction of the first speculum for example
316 the 3rd optical elements are the second speculum for example
400 light sources
The first optical element of 401 light that sent by light source for parallelization, for example lens of plano-convex
402 second optical elements, for example the first speculum
403 light sources pass through for example light of the lens parallelization of plano-convex of the first optical element
404 the 3rd optical elements are the exemplary possible rotation direction of the second speculum for example
405 second optical elements are the exemplary possible rotation direction of the first speculum for example
The rotation of the container of 406 substrates or container/rotation/turn to
The printed article of 407 containers/printing theme
408 the first container position in first moment
409 in the second container position of comparing the second more late moment of first moment
The direction of motion of 410 containers/for the direction of motion of the conveying equipment of cask
The first border of 411 printing themes
The second boundary of 412 printing themes
413 through printing/substrate to be printed, for example, through printing/container to be printed
414 that is to say for example beam path between first and second speculum between the second and the 3rd optical element
415 the 3rd optical elements in primary importance, for example the second speculum
416 the 3rd optical elements in the exemplary second place, for example the second speculum
417 in the exemplary second place/turned position, by the 3rd optical element beam path after the second speculum for example
418 in exemplary primary importance/turned position, by the 3rd optical element beam path after the second speculum for example
419 the 3rd optical element, for example the second speculums
500 first optical element, for example lens
501 at the beam path that is to say between first and second optical element between first lens and the first speculum
502 second optical elements are the exemplary possible rotation direction of the first speculum for example
503 second optical elements, for example the first speculum
504 the 3rd optical elements in primary importance/turned position, for example the second speculum
505 the 3rd optical elements in the exemplary second place/turned position, for example the second speculum
506 the 3rd optical elements are the exemplary possible rotation direction of the second speculum for example
507 in the exemplary second place/turned position, for example, by the 3rd the optical element for example beam path after the second speculum, the beam path of focusing
508 in exemplary primary importance/turned position, for example, by the 3rd the optical element for example beam path after the second speculum, the beam path of focusing
509 that is to say at the beam path between first and second speculum between the second and the 3rd optical element
510[U1] the 3rd optical element, for example the second speculum
600 light sources in the exemplary second place/turned position
601, the first optical element of 602 light that sent by light source for parallelization, for example lens of plano-convex
603 light sources in exemplary primary importance/turned position
The exemplary possible rotation direction of 604 light sources
The rotation of the container of 605 substrates or container/rotation/turn to
The direction of motion of 606 containers/for the direction of motion of the conveying equipment of cask
607 through printing/substrate to be printed, for example, through printing/container to be printed
608 the first container position in first moment
609 in the second container position of comparing the second more late moment of first moment
610 printed articles/printing theme
611 light sources pass through for example light of the lens parallelization of plano-convex of the first optical element the exemplary second place/turned position
612 light sources pass through for example light of the lens parallelization of plano-convex of the first optical element exemplary primary importance/turned position
701 first printing stations
702 first light sources
703 are attached to the optical element of the first light source
704 second printing stations
705 are attached to the optical element of secondary light source
706 secondary light sources
A 707 n printing station, wherein, n is > 2 natural number
708 are attached to the optical element of n light source
A 709 n light source
710 through printing/substrate to be printed, for example, through printing/container to be printed
The direction of motion of 711 containers/for the direction of motion of the conveying equipment of cask
The rotation of the container of 712 substrates or container/rotation/turn to
713 printed articles/printing theme
801 light sources, LASER Light Source
802 optical elements
803 through printing/substrate to be printed, for example, through printing/container to be printed
The distribution of light that is wire of 804 one dimensions
805 are the distribution of light of point-like
901 light sources, LASER Light Source
902 optical elements
903 through printing/substrate to be printed, for example, through printing/container to be printed
904 two dimensions be planar distribution of light
905 are the distribution of light of point-like
Claims (18)
1. for the device with photoreactivity dielectric printing container, comprise at least one printing station (101), at least one be arranged in after described printing station for the curing station that comprises at least one light source (100) that solidifies photoreactive container printed article (103) and for the conveying equipment of cask, it is characterized in that, described curing station has the optical element (106) of at least one light produced by described light source for deflection, its at described printing station place or described printing station is other can be by described light at least in part towards the deflection of photoreactive container printed article and/or the parallelization of the container by described printing station printing.
2. device according to claim 1, it is characterized in that, described light source is ultraviolet light source, the system for example formed by one or more light emitting diodes or the system formed by one or more LASER Light Sources, and preferably can be transmitted in the light in the wave-length coverage of 354nm to 445nm.
3. according to the described device of any one in aforementioned claim 1 to 2, it is characterized in that, described optical element is lens or the speculum of free shape lens, prism, Fresnel Lenses, cylindrical lens, plano-convex.
4. according to device in any one of the preceding claims wherein, it is characterized in that, described optical element is attached troops to a unit aperture.
5. according to device in any one of the preceding claims wherein, it is characterized in that, described optical element can rotate around at least one axis, for example, with the angular turn between 0 ° to 60 °, wherein, described axis is vertical or be not orthogonal to the direction of motion for the conveying equipment of cask.
6. device according to claim 5, it is characterized in that, described conveying equipment can regulate in advance around the container axis rotary container, and move to the motion association for the treatment of the optical element on curing container printed article in container and that is to say that the container be associated with on throughput direction moves and/or the rotation of container for the light deflection that will be produced by described light source.
7. according to device in any one of the preceding claims wherein, it is characterized in that, described light source is parallel to described printing station or is parallel to described print head ground to be arranged.
8. according to device in any one of the preceding claims wherein, it is characterized in that, described curing station has the optical element of a plurality of identical or different structure types.
9. device according to claim 8, it is characterized in that, described curing station has the first optical element and the second optical element, wherein, described the first optical element is so implemented, that is, the light that it can parallelization be sent by described light source, and described the second optical element is that the light that can rotate and can make described parallelization is towards treating curing container printed article deflection.
10. device according to claim 8, it is characterized in that, described curing station has first speculum that can move and second speculum that can move, wherein, the light sent by described light source can be by described the first mirror deflection to described the second speculum, and described the second speculum so configures, that is, it can be towards treating that curing container printed article focuses on ground, parallelization ground or the described light of deflection divergently.
11. device according to claim 10, is characterized in that, three optical element adjacent with described the first speculum light ray parallelization ground that for example lens of plano-convex can will be sent by described light source, divergently or directs on described the first speculum with focusing on.
12. the device in any one of the preceding claims wherein according to except 7, is characterized in that, described light source can rotate around axis vertical or that be not orthogonal to for the direction of motion of the conveying equipment of cask.
13. according to device in any one of the preceding claims wherein, it is characterized in that, described curing station has the disc for example formed by glass or plastics of the printing opacity that can change, it can make the optical element of described curing station avoid for example ink mist pollution.
14. according to device in any one of the preceding claims wherein, it is characterized in that, described curing station has the first light source for solidifying described photoreactive container printed article and is arranged in described the first light source secondary light source afterwards, and it almost makes the photoreactive container printed article that described warp solidifies harden fully.
15. according to device in any one of the preceding claims wherein, it is characterized in that, described device has a plurality of respectively with the printing station of the curing station of attaching troops to a unit, wherein, the arrangement of printing station and curing station is so implemented, that is, each printing station is followed by curing station.
16. according to device in any one of the preceding claims wherein, it is characterized in that, described device construction becomes the turn-around machine with a plurality of printing stations and curing station.
17. for the method with photoreactivity dielectric printing container, it comprises with the photoreactivity medium and carrys out printing containers, and described photoreactive container printed article solidifies by the light of light source, wherein, described light came deflection and/or parallelization by the optical element be in outside described light source at least in part before arriving described photoreactive container printed article.
18. method according to claim 17, it comprises as follows, that is, container photoreactivity medium and/or different printing theme with different colours in a plurality of steps prints, and solidifies after each print steps.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012209085.1 | 2012-05-30 | ||
| DE102012209085A DE102012209085A1 (en) | 2012-05-30 | 2012-05-30 | Light deflection with container printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103448380A true CN103448380A (en) | 2013-12-18 |
| CN103448380B CN103448380B (en) | 2016-11-30 |
Family
ID=
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2669095B1 (en) | 2015-07-15 |
| DE102012209085A1 (en) | 2013-12-05 |
| EP2669095A1 (en) | 2013-12-04 |
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