EP3201001A1 - Bogenrotationsoffsetdruckmaschine mit einrichtungen für das gleichmässige trocknen von beidseitig bedruckten druckbögen - Google Patents
Bogenrotationsoffsetdruckmaschine mit einrichtungen für das gleichmässige trocknen von beidseitig bedruckten druckbögenInfo
- Publication number
- EP3201001A1 EP3201001A1 EP15770550.0A EP15770550A EP3201001A1 EP 3201001 A1 EP3201001 A1 EP 3201001A1 EP 15770550 A EP15770550 A EP 15770550A EP 3201001 A1 EP3201001 A1 EP 3201001A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- printing
- printed
- cylinder
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007645 offset printing Methods 0.000 title claims description 17
- 238000001035 drying Methods 0.000 title description 41
- 238000007639 printing Methods 0.000 claims abstract description 271
- 239000000976 ink Substances 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 36
- 230000005855 radiation Effects 0.000 claims abstract description 35
- 230000001914 calming effect Effects 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 2
- 238000007726 management method Methods 0.000 claims 1
- 108090000623 proteins and genes Proteins 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 22
- 239000011248 coating agent Substances 0.000 description 21
- 238000001723 curing Methods 0.000 description 13
- 230000032258 transport Effects 0.000 description 11
- 239000003973 paint Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010422 painting Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 239000004922 lacquer Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 238000003847 radiation curing Methods 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/10—Combinations of transfer drums and grippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/0443—Drying sheets, e.g. between two printing stations after printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/045—Drying sheets, e.g. between two printing stations by radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/045—Drying sheets, e.g. between two printing stations by radiation
- B41F23/0453—Drying sheets, e.g. between two printing stations by radiation by ultraviolet dryers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/045—Drying sheets, e.g. between two printing stations by radiation
- B41F23/0456—Drying sheets, e.g. between two printing stations by radiation by infrared dryers
Definitions
- the invention relates to a sheet-fed offset printing machine for one-sided or multi-color printing on printed sheets.
- UV-reactive printing inks are used to produce fast-drying layers of paint, which crosslink with UV light after irradiation and suddenly provide a dry surface. But because such inks do not dry on the substrate, as some conventional offset printing inks, must be taken to ensure complete crosslinking of the color layers inevitably. Otherwise, a completely unusable printed product would arise.
- US 2002/0178944 A1 discloses a rotary printing machine with integrated coating device.
- the integration of coating units in rotary printing machines it is possible in a conventional manner to realize special printing effects, especially gloss effects on a substrate.
- special adjustments of the printing speed are required to ensure adequate drying of the paint before the entry of the substrate, especially sheet in a subsequent printing or in a sheet delivery.
- a rotary printing machine with integrated painting device is known.
- a radiator device is provided in a sheet exit section arranged downstream of the printing nip, which radiates the paint applied to the printing substrate immediately after it has left the printing nip with paint-curing, and / or paint-drying radiation is used.
- a blowing device for blowing in the irradiated paint with conditioned air is arranged parallel to the pressure cylinder device.
- the wavelength of that radiation is preferably in the range of 350 nm to 4000 nm, in particular in the range of 700 nm to 4000 nm.
- the conditioning of the air is preferably carried out with respect to a specified moisture / temperature state.
- the radiator device can be an IR cold radiator or combined with a UV radiator.
- the intensity of the radiation applied to the printing substrate by the IR cold radiator can be variably changed.
- the temperature of the air applied by the air knife nozzle arrangement air is adjustable adjustable. This makes it possible to control the amount of heat introduced by the application of air to the lacquer or of the printing material or, if appropriate, also derived.
- blowing device and the IR cold radiator into a drying module or an assembly.
- the blowing device and the IR cold radiator are preferably arranged so compact that an irradiation and shipsbeierschlagung at an angle on
- Pressure cylinder is less than 45 °.
- Such a compact arrangement of a paint drying unit can advantageously be arranged in the peripheral region of the printing cylinder lying between the printing gap and the transfer region on the transfer cylinder.
- a coating machine for finishing sheet material in which a coating unit is provided with impression cylinder, forme cylinder and metering system for paint.
- a switchable arcuate subordinate unit In the coating machine, after the coating unit, a switchable arcuate subordinate unit.
- the sheet turning unit is arranged downstream of a first coating unit for the back of the sheet.
- transfer drums for targeted drying are arranged between further coating units.
- dryer modules are arranged between the coating units, which consist of a transfer drum and a downstream impression cylinder with a drying system associated therewith.
- DE 10 2007 052 767 A1 discloses a method and a device for processing radiation-curing inks and lacquers which are applied to a printing material in a processing machine.
- UV dryers are provided for drying the dye or lacquer application in all printing and coating plants.
- the UV ink and / or UV varnish-carrying components of the processing machine are preceded by the ultraviolet Radiation protected by artificial or natural light.
- the sheet-guiding surfaces of the impression cylinder and the transfer drums have both before the sheet turning device and after this the same function-determining properties and the sheet guiding and sheet guiding devices before the sheet turning device as well as after this are constructed analogously.
- the printing units are subordinated to the last printed sheet side a coating unit for painting. At least the last printing unit of the straight printing line and at least the last printing unit of the opposing line each have a dryer for curing the UV components in the hybrid printing inks ordered. In addition, the coating unit is also assigned a dryer.
- DE 10 2009 029 430 A1 discloses a method and a device for using waste heat arising in a processing machine.
- the hot air of a first heat source at least by means of a conduit system fluidly fed into the interior of at least one sheet guiding cylinder.
- a sheet guiding cylinder is a dryer, wherein it is shown in the embodiment that each sheet guiding cylinder should work as a dryer.
- DE 10 2006 032 831 A1 discloses a drying device for treating a printing material surface in a processing machine.
- each printing unit of a printing press is associated with a dryer device. It is therefore known to produce a fast-drying print product with special UV-reactive inks. In addition to the very high energy consumption and environmental concerns against their use, eg. B. due to ozone formation, but also the question of further processing of such products is not sufficiently clarified.
- the invention is therefore based on the object, in a sheet-fed offset printing machine to enable an application of ink with radiation-curing special inks on a printed material with the fastest possible and uniform drying, the equipment cost should offer advantages for the maschines concept.
- a sheet-fed printing machine for single-color or multi-color printing of printing inks on printing sheets with a feeder, one or more printing units for straight printing in a first machine section, a turning device and one or more printing units for the counterpressure in a second machine section.
- the printing units are each used to apply special inks on the front and the back of a substrate using provided in the printing units inking / dampening units and plate, rubber and printing cylinders.
- the printed sheets are conveyed by means of transfer drums from printing unit to printing unit.
- the special printing inks are mixed with photoinitiators for curing by means of UV-emitting radiating devices.
- the printed sheets are fed to a sheet stack of a cantilever after printing with a cantilever conveyor.
- the first and the second radiating device are located in a substantially equal distance with respect to the sheet travel path to their respective previously passed through printing station.
- the arrangement may be formed in a first embodiment so that in each case a radiator device is arranged on a printing cylinder of the last printing or commissioned work for a sheet side (Perfecting) and thereby have a respective same distance on the circumference of the printing cylinder to the respective printing or application gap ,
- the distance of the radiator device to the respective pressure or application gap can be adjusted, so that the distances between the radiator devices in the first machine section and in the second machine section are substantially equal to one another.
- the arrangement for the drying of the back pressure in the context of a chain conveyor, which transports the sheets to the boom can be arranged.
- the radiating device for the back is arranged in a path of the arc between the last printing unit of the machine area for the Perfecting to the corresponding radiator device for the Perfecting corresponding Laufwegabstand in an arcuate from the last printing unit to the boom.
- the first radiator device is assigned to an arrangement of a turning device.
- the turning device is arranged between the areas of the sheet-fed printing machine for the straight printing (sheet front side) and the counterpressure (sheet backside).
- the turning device has an arrangement of three sheet guiding drums, which perform the transfer and everting of the sheets in three steps.
- a transfer drum takes over the sheet from the printing cylinder of the last printing unit for the Perfecting in the first machine section, the printed side of the sheet is inside and must be protected.
- the printed sheets are then transferred from this transfer drum to a so-called storage drum, the printed side is conveyed lying outwards again. From the storage drum are the sheets finally adopted for everting a turning drum and passed with the trailing edge ahead of the first printing cylinder of the second machine section for the perfecting.
- the drying can be done in this case on the storage drum.
- radiator devices For the second machine section, the assignment of radiator devices to sheet guide drums or transfer drums or the arrangement in the arching of the chain conveyor to the sheet delivery is possible.
- the first and second radiator devices each consist of one or more modules, wherein the plurality of modules are arranged to be operable individually or as variably switchable groups.
- a conveying path of the boom conveyor for a maximum calming distance is formed between the respective pressure gap to which the first and second radiator devices are assigned and a first module of the respective radiator device.
- the calming sections for the radiation treatment of the front and back of the printed sheets are largely the same.
- the modules of the first radiator device and the second radiator device are arranged such coordinated switchable that results in an adapted to the substrate, dyeing and drying needs drying path between the respective printing gap in sheet travel direction to the respective radiator device.
- a method for producing high-gloss prints in single-color or multi-color printing of special inks on printed sheets can be carried out, in which printed images are applied to a printed sheet by means of the printing units, without further coatings of the prints taking place.
- the special printing inks of the printed image are in this case by a radiator device of the special printing inks hardening radiation treatment and the printed sheets with hardened special inks in the boom are laid out on a stack of sheets.
- Modules of UV radiator devices can be switched depending on the respective printing subject in such a way that uniform hardening of the special printing inks on both sides of a printing substrate is achieved for an intended further processing of the printed sheets.
- the basis for a proper execution of the method is that there is a uniform waiting time until the hardening treatment and a sufficient action of the curing radiation for both sides of a printing material.
- FIG. 1 shows a schematic representation of a sheet-fed printing press according to the invention with a turning device and drying devices
- FIG. 2 shows an illustration of an arrangement according to the invention in conjunction with a sheet-fed printing machine with a three-drum turning and FIG. 3 to FIG. 5
- FIG. 1 shows a sheet-fed offset printing press of known type.
- This has a feeder 1 for the occasional feeding of printed sheets to a first machine section I.
- This consists of printing unit 2 four printing units 2, 3, 4 and 5.
- the printing units 2 to 5 are all the same structure and have a plate or forme cylinder P, a rubber or blanket or transfer cylinder G and a printing or impression cylinder D. , wherein the plate cylinder P is assigned in each case an inking unit and optionally a dampening unit.
- the printed sheets are forwarded between the printing cylinders D via transfer drums T from printing unit to printing unit.
- the sheet-fed offset printing machine of Figure 1 is also provided after the printing unit 5 with a turning device 9 as a so-called Eintrommelengine.
- An everting of printed in the printing units 2 to 5 on the front sheet is effected by means of a single turning drum 10, which is arranged between the printing cylinder D of the printing unit 5 and the printing cylinder D of the next following printing unit 2W.
- the printed sheets are fed to a boom conveyor 8 designed as an endless chain conveyor system via a transfer drum T designated as a delivery drum.
- the printed sheets are then transported by means of gripper systems arranged circumferentially on the chain conveyor in the transport direction R to a delivery device 10 and finally laid out in the delivery device 10 on a stack of sheets.
- coating units 6 and 7 can be provided in the printing units 5 and 5W for the respective blanket cylinder G for the final coating of the previously printed multi-colored sheet side. These devices are usually used for different from the inventive method of production. Within the boom conveyor 8 no facilities for non-contact surface treatment are provided according to FIG. For rapid and efficient drying of each of the two printed sides of the printed sheets, UV radiator devices 14 and 15 assigned to the respective printing cylinder D are arranged in the printing units 5 and 5W.
- the process paths 15, 16 extend from the pressure gap S to the end of the respective Einwirkrange the radiator devices 13, 14.
- the surface of the fresh color print will briefly relax, smoothing the color surfaces. Since the two process sections 15, 16 are the same length according to the invention, the smoothing process proceeds in the same way on the fresh color surfaces for the front side printing and for the back side printing of the printed sheet.
- the printed sheets are thus transported in the same surface constitution to the radiator devices 13, 14.
- the surfaces of the freshly printed front sides and rear sides of the printed sheet are subjected to the same surface treatment over the process lines 15, 16.
- This is accompanied by the fact that the surfaces of the printing sheet printed with UV special inks cure in the same way on the front and the back and thus have the same effect Gloss level obtained. This achieves an essential quality target for perfecting.
- the sheet-fed offset printing machine shown here is simple and inexpensive in structure for producing glossy prints for a multi-color perfecting.
- FIG. 1 An alternative configuration of the sheet-fed offset printing machine according to the invention is shown in FIG. With regard to the arrangement of the printing units 2 to 5 for the front side and the printing units 2W to 5W for the rear side, the structure of the printing press is the same as in the configuration according to FIG. 1.
- the sheet is fed via a transfer drum T, the this point is designed as a delivery drum, fed directly to the designed as an endless chain conveyor boom conveyor 8.
- the printed sheets are thus transferred from the printing cylinder D of the printing unit 5W in completely colored state to the boom conveyor 8 and then conveyed on the lower run of the boom conveyor 8 on.
- the arrangement of the UV dryers is chosen differently according to the invention in the configuration according to FIG. 2 than in the configuration according to FIG. 1.
- the first radiator device 13 is assigned to the surface of the storage drum 11 in the region of the turning device 9.
- the printed sheets are transferred from the printing cylinder D of the last printing unit 5 of the first machine section I to the transfer cylinder 12. There, the sheet must be guided without contact, since the printed side is positioned to the surface of the transfer cylinder 12 out. After the transfer of the sheet to the storage drum 1 1, the printed side is outside again and is exposed to the action of the radiator device 13.
- the surface is hardened and can be easily subjected to the eversion process on the turning drum 10.
- process paths 17 and 18 are shown as dashed lines from the respective printing gap S to the radiator devices 13, 14 in FIG. 2.
- the freshly printed ink surface of the front side of the printing sheet following the first machine section I can relax and smooth in the same way as the freshly printed ink surface of the back side of the printing sheet following the second machine section II.
- the radiating means 13, 14 for both Pages of the sheet achieved the same drying or curing result. In this way, an equal degree of gloss is achieved for both sides of the sheet.
- the principle of the invention is therefore that by the use of UV
- radiator devices 13, 14 in the effect of a printing sheet freshly printed with special printing inks and left without a lacquer layer is achieved so that the printed and dried special printing ink appears shiny, whereby 50 to 60 highlights can be achieved.
- the radiator devices 13, 14 at a distance equal process paths 15, 16 or 17, 18 assigned to a respective upstream printing gap S of the last printing units 5 and 5W of the two machine sections I, II for printing on the front and back of the sheet.
- the method can be designed quite variably within the framework of the illustrated machine configuration.
- the process paths 15, 16 can be lengthened or shortened at certain distances from the printing gap S at the circumference of the printing cylinder D, depending on the printing unit configuration.
- Double-sized turning drum 10 double-sized storage drum 1 1, double-size transfer cylinder 12
- a so-called transfer module or a dryer module can be used, in which a printing cylinder and a transfer drum is used as an additional sheet transport path in the manner of a printing unit substructure.
- a turning device in the form of a Eintrommelengine can be subordinated to this additional module.
- process paths 17 of different lengths can be realized between the last printing nip S in the printing unit 5 and the position of the drying in the radiator device 13.
- the adaptation of the process section 18 to the process section 17 can be easily realized in the region of the sheet exit 19 in the boom conveyor 8, since the radiator device 14 is comparatively easily changeable in its position.
- radiator devices 13, 14 with several UV lamps parallel to each other and lying in the sheet running direction one after the printing of specialty inks arranged in the sheet transport direction R last arranged UV lamps 13, 14 for the irradiation and curing treatment be used.
- the process section 15, 16 in the configuration of Fig. 1 can also be extended to some extent.
- the functional and physical condition of the UV emitters used as radiating means 13, 14 is also to be considered in relation to their systemic properties using mercury or a different doping with iron or other known materials. It can play a special role in a known manner in the context of the effectiveness of the UV radiation generated for the gloss of the dried printed image or for the efficiency in the curing of the color layers.
- a good curing prevents a reduction in quality of the colored printed surfaces.
- a so-called pressure plate is clamped.
- This covering is particularly suitable for preventing contamination of the printing cylinder D and smearing of printing ink on the printed sheet.
- the positioning of an opposing pressure plate at said location is advantageous because of the heat caused by the arranged there radiator means 14 on the sheet. Therefore, the coating and in particular a possible sealing of the pressure plate must be made heat-resistant.
- FIG. 3 shows the arrangement of the dryers 6, 7 on printing units 5, 5W in a combined representation. This arrangement corresponds to the illustration of Figure 1 and shows an enlarged view of the congruent assignment of the UV radiator devices 6 and 7 in the printing units 5 and 5W.
- the first drying section 15 and the second drying section 16 are also congruently formed from the printing nip S on the blanket cylinder G in association with the impression cylinder D to the respective outgoing end of the UV radiator devices 6 and 7 in the sheet running direction R on the printing cylinder D.
- a calming section B a Trocknereinwirkumble L and a dryer spacing A are shown, which should be formed for each of the UV radiator devices 6 and 7, ie in the two printing units 5 and 5W, in identical or at least approximately identical manner.
- the calming path B can be changed parallel to the surface of the printing cylinder D by shifting the UV radiator devices 6 and 7 with electrical or mechanical means such as linear guides and pivoting devices depending on the color required.
- the Trocknereinwirkrange L can be changed by control measures with switching on and off of the UV lamps within the UV radiator devices 6 and 7 or by mechanical means such as diaphragms.
- the Trocknereinwirkrange L can be changed by control measures with switching on and off of the UV lamps within the UV radiator devices 6 and 7 or by mechanical means such as diaphragms.
- the dryer distance A indicates the distance at which the printed sheets can be guided past the transport path in sheet travel direction R to a UV lamp.
- the dryer distance A can be changed by adjusting means on and / or in the UV radiator devices.
- the drying sections 15 and 16 thus result in each case from the calming section B of the printing sheet from the printing nip S until it enters the dryer working section T of the UV radiating devices 6 and 7 and then continues via the respective drying line T between the respectively effective UV radiating device 6 or 7 and resting on the printing cylinder D printed sheet.
- FIGS. 4a and 4b show the arrangements of the UV radiator devices 13 and 14 on printing units 5 and 5W, each in a separate illustration. These arrangements correspond to the representation of printing units 5 and 5W in a sheet-fed offset printing press according to FIG. 2 and show, in an enlarged representation, the respectively specific assignment of the UV radiating means 13 and 14 in the printing units 5 and 5W.
- FIG. 4 a a fixed or adjustable Trocknereinwirkumble L and a fixed or adjustable dryer distance A along or relative to the surface of the UV lamp 13 downstream of the printing unit 5 in the sheet running direction R, according to the arrangement of FIG Pressure cylinder D provided.
- the first drying section 17 is formed from the nip S on the blanket cylinder G in association with the impression cylinder D to the end of the UV emitter device 13 in the sheet travel direction R. It comprises a calming section B, which leads in the sheet running direction R from the printing nip S, via a transfer cylinder 12 and a storage drum 1 1 to the UV radiating device 13 arranged there.
- the transfer cylinder 12 Since the printed sheets come to rest with their freshly printed sheet side against the surface of the transfer cylinder 12, the transfer cylinder 12 is designed as a skeil drum, which is then executed with gripper systems for the beginning of the sheet and possibly also for the sheet end, but without cylindrical Bogenry- rungs Design , This can avoid smearing the fresh ink. Greasing can also be avoided bowing surfaces, which have a color-repellent coating.
- a particularly long calming stretch B is provided, so that a good gloss result can be achieved for the sheet front side printed with a UV-reactive printing ink. On an adjustment of the length of the calming section B can therefore be omitted if necessary.
- Figure 4b is for the UV emitter device 14, which is downstream of the printing unit 5W in sheet travel direction R, according to the arrangement of Figure 3 also a fixed or adjustable Trocknereinwirkumble L and a fixed or adjustable dryer spacing A along or relative to the sheet guiding plane of the boom system. 8 , provided here in the area of the sheet exit 19.
- the second drying section 18 is formed from the printing gap S on the blanket cylinder G in association with the impression cylinder D to the end of the UV emitter device 13 in the sheet travel direction R. It includes a calming section B, in the sheet running direction R from the printing nip S, via a transfer cylinder T (also delivery drum) and the boom system 8 (endless chain conveyor system with gripper bars) to the arranged on the arch UV radiation device 14 leads.
- This calming section B according to FIG. 4b should correspond in its length to that which is bridged by the calming section B in FIG. 4a. Therefore, the arrangement of the UV emitter device 14 along the sheet guiding plane in the sheet emergence 16 can be displaced.
- the transfer cylinder T Since the printed sheets with their freshly printed sheet side could come to lie against the surface of the transfer cylinder T, the transfer cylinder T is executed as a skeleton drum. However, this is the case with the so-called jib drum used at this point as well as the case, since here the endless chain conveyor system with gripper systems arranged between the conveyor chains is guided in a simple manner via two sprockets. Therefore, there are usually no cylindrical guide surfaces for the printed sheets available here. This is a lubrication of the fresh ink is not to be feared. Greasing can also be avoided here by sheet guiding surfaces, which have a color-repellent coating.
- LED UV lamps can be used. These can be controlled in a particularly favorable manner, both with regard to the process-dependent variable power control of the dryers and also with respect to a surface-variable controlled drying dependent on the type of product.
- the UV LED spotlights can be activated both in the width direction to the printed area of each sheet and in the circumferential direction corresponding to the printed format length of the sheet
- UV lamp device UV LED dryer
- UV lamp device UV LED dryer
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Rotary Presses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014114236 | 2014-09-30 | ||
DE102015116491.4A DE102015116491A1 (de) | 2014-09-30 | 2015-09-29 | Bogenrotationsoffsetdruckmaschine mit Einrichtungen für das gleichmäßige Trocknen von beidseitig bedruckten Druckbögen |
PCT/EP2015/072595 WO2016050862A1 (de) | 2014-09-30 | 2015-09-30 | Bogenrotationsoffsetdruckmaschine mit einrichtungen für das gleichmässige trocknen von beidseitig bedruckten druckbögen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3201001A1 true EP3201001A1 (de) | 2017-08-09 |
EP3201001B1 EP3201001B1 (de) | 2018-11-07 |
Family
ID=55486012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15770550.0A Active EP3201001B1 (de) | 2014-09-30 | 2015-09-30 | Bogenrotationsoffsetdruckmaschine mit einrichtungen für das gleichmässige trocknen von beidseitig bedruckten druckbögen |
Country Status (4)
Country | Link |
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JP (1) | JP2017530036A (de) |
DE (1) | DE102015116491A1 (de) |
WO (1) | WO2016050862A1 (de) |
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US10180248B2 (en) | 2015-09-02 | 2019-01-15 | ProPhotonix Limited | LED lamp with sensing capabilities |
ES2726734T3 (es) | 2017-03-14 | 2019-10-08 | Kba Notasys Sa | Imprenta alimentada con hojas para impresión simultánea a doble cara de hojas, en particular para la producción de documentos de seguridad |
CN110167757B (zh) * | 2017-05-19 | 2021-06-29 | 株式会社新克 | 喷墨打印机及使用其的喷墨印刷方法 |
DE102018110418A1 (de) * | 2018-04-30 | 2019-10-31 | manroland sheetfed GmbH | Einrichtung zum Zwischentrocknen von bedruckten Druckbögen |
DE102018130280A1 (de) * | 2018-11-29 | 2020-06-04 | Koenig & Bauer Ag | Trocknungseinheit zum Trocknen bedruckter Substrate |
DE102021105640A1 (de) * | 2021-03-09 | 2022-09-15 | Koenig & Bauer Ag | Siebdruckeinheit mit zwei Basismodulen |
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DE29818148U1 (de) | 1998-10-10 | 2000-02-17 | Roland Man Druckmasch | Beschichtungsmaschine zum Veredeln von Bogenmaterial |
DE10057642A1 (de) * | 2000-11-16 | 2002-05-23 | Koenig & Bauer Ag | Verfahren und Einrichtung zum Erzeugen unterschiedlicher Glanzgrade auf Bedruckstoffen in Druckmaschinen |
DE10106011A1 (de) | 2001-02-05 | 2002-08-08 | Koenig & Bauer Ag | Verfahren und Einrichtung zum Verhindern des Abliegens, Abschmierens und Markierens im Schön- und Widerdruck |
US6612234B2 (en) | 2001-05-01 | 2003-09-02 | Howard W. DeMoore | Lightweight portable compact universal printer coater |
DE102004060059A1 (de) | 2004-12-14 | 2006-06-29 | Man Roland Druckmaschinen Ag | Rotationsdruckmaschine mit integrierter Lackiereinrichtung |
JP2007223066A (ja) * | 2006-02-21 | 2007-09-06 | Mitsubishi Heavy Ind Ltd | 印刷機 |
DE102006032831A1 (de) | 2006-07-14 | 2008-01-17 | Man Roland Druckmaschinen Ag | Trocknereinrichtung zur Behandlung einer Bedruckstoffoberfläche in einer Verarbeitungsmaschine |
EP1878987A3 (de) * | 2006-07-14 | 2010-09-01 | manroland AG | Trocknereinrichtung zur Behandlung einer Bedruckstoffoberfläche in einer Verarbeitungsmaschine |
DE102007052767A1 (de) | 2007-11-06 | 2009-05-07 | Manroland Ag | Verfahren und Vorrichtung zum Verarbeiten von unter Strahlung härtenden Farben und Lacken in einer Verarbeitungsmaschine |
JP2010042515A (ja) * | 2008-08-08 | 2010-02-25 | Mitsubishi Heavy Ind Ltd | インキ乾燥装置及び印刷機 |
DE102009029430A1 (de) | 2008-11-25 | 2010-09-16 | Manroland Ag | Verfahren und Vorrichtung zur Nutzung von in einer Druckereieinrichtung anfallender Abwärme |
JP2011031485A (ja) * | 2009-07-31 | 2011-02-17 | Mitsubishi Heavy Industries Printing & Packaging Machinery Ltd | 印刷機 |
JP2011156790A (ja) * | 2010-02-02 | 2011-08-18 | Komori Corp | 印刷またはコーティング方法 |
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2015
- 2015-09-29 DE DE102015116491.4A patent/DE102015116491A1/de not_active Withdrawn
- 2015-09-30 EP EP15770550.0A patent/EP3201001B1/de active Active
- 2015-09-30 JP JP2017516986A patent/JP2017530036A/ja active Pending
- 2015-09-30 WO PCT/EP2015/072595 patent/WO2016050862A1/de active Application Filing
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WO2016050862A1 (de) | 2016-04-07 |
JP2017530036A (ja) | 2017-10-12 |
EP3201001B1 (de) | 2018-11-07 |
DE102015116491A1 (de) | 2016-03-31 |
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