专利摘要:
1. MACHINE FOR FLAT PRINTING, containing the transporting mechanism of the material being sealed, inking and moistening devices with rolling elements, characterized in that, in order to expand its technological capabilities and improve print quality, it has a laser radiation source for converting an oleophilic material into a hydrophilic or vice versa; and a control and scanning system with a laser beam in the transverse direction relative to the transport direction of the material being processed; organs moistening and inking apparatus installed on the path of travel of the printing material to react with the latter, and the laser radiation source is located in front yuschim moistening and inking units along the movement zag echatyvaemogo material. CO /
公开号:SU1118283A3
申请号:SU782626703
申请日:1978-06-02
公开日:1984-10-07
发明作者:Хелль Рудольф
申请人:Др.-Инж. Рудольф Хелль (ФРГ);
IPC主号:
专利说明:

2. The machine according to claim 1, characterized in that it has a means for applying on 3ane4aTbiBaehfyro the surface of the material being treated with a hydrophilic or olefil coating placed in front of the laser radiation source in the course of the movement of the material being processed.
3. Machine pop. 1, I differ from the fact that it has a drying device installed behind the inking apparatus.
The invention relates to printing, in particular, to printing equipment for an offset printing method. The known machine for flat printing, containing a mechanism for transporting the material to be printed., A paint and moistening apparatus with rolling elements, plate, offset and printing cylinders. In a known machine, due to the reusable transfer of a colorful image from one surface to another from a printing form to a printing blanket from a printing blanket to a printing surface, a graphic distortion of elements of the printed image on the material to be printed is possible. In addition, due to the presence in the known machine of the cylinders of the printing apparatus of a given diameter, it is impossible to arbitrarily set the length of the printed image, which limits its technological capabilities. The purpose of the invention is to expand the technological capabilities of manen for flat printing and to improve the quality of printing. The goal is achieved by the fact that the flat printing machine, which contains the transportation mechanism of the material to be sealed, inks and moistening devices with rolling elements, has a laser radiation source to convert the oleophilic material into a hydrophilic or vice versa, and a control system and a laser beam scanning in the transverse direction the direction of transportation of the material being processed, while the rolling parts of the wetting and inking devices are installed in the path of movement direct material to react with the latter, and the laser radiation source is located in front yuschim moistening and inking units along the movement of the printing material. In addition, the flat printing machine has a means of applying a hydrophilic or oleophilic coating to the printed surface of the processed material, placed in front of the laser source of radiation as the processed material moves. At the same time, it has a drying device installed behind the inking apparatus. The drawing shows schematically an embodiment of a flat printing machine. The machine includes a transporting mechanism for the material to be printed 3, including a guide roller 1 and 2, a support cylinder 4, an inking machine, including a colorful trough 5 placed in the helix cylinder 6, a transfer roller 7, a roll cylinder 8 and a knurling roller 9, a humidifier comprising a capacitor 10, a ductor roller 11, a transfer 12 and a knurling 13 rollers, a laser radiation source 14 and a laser beam control and scanning system consisting of a computer 15, a luminance modulator 16 and a 17-line modulator. A laser radiation source 14 is placed in front of the humidifier and edge. juicy apparatuses in the course of moving the material to be sealed 3. The rolling bodies 9 and 13 of the inking and wetting machines are installed along the path of movement of the material 3 with the possibility of interaction with the latter. The machine can also be equipped with a means for applying to the surface of the material 3 a hydrophilic or oleophilic coating 18, which is placed by a pre-laser source 14 from the radiation of the print zone with a drying device 19. The proposed machine works as follows. The material to be sealed 3 from roll 20 falls on guide roller 1. And through bearing cylinder 4 enters guide roller 2, from which it enters the schematically depicted cutting section 21. Then cut material 3 is laid in slipway 22. Rollers 1 and 2 as well as cylinder 4, they are driven and have a peripheral speed equal to the peripheral speed of cylinder 4, as a result of which material 3 disposes on the surface of cylinder 4 with the necessary M tension. If the surface of the printed material 3 does not possess the properties required for flat printing (hydrophilicity or oleophilicity), then a hydrophilic or oleophilic coating is applied to the surface of the material 3 in front of the laser beam treatment zone. The treatment of the surface of the material with 3 laser beams in order to convert the oleophilic surface into a hydrophilic one (if the material has an oleophilic coating 3) or vice versa (if the material has a hydrophilic coating) is realized by means of a laser modulator 16 and a modulator 17 lines, which in this case is divided into five points lying next to each other, so that five lines are recorded simultaneously. With the help of an electronic control system (computer) 15, the laser beam is driven at the speed of material 3. With the subsequent processing of material 3 by a laser beam into the printing area on its surface by means of knurling rollers 9 and 13, which are in force interaction with the supporting cylinder 4, the ink and the moistening liquid are applied, with the result that a colorful image is formed on the surface of the material, as in the process of flat printing. After the formation of the ink image on the material 3, it can be processed by the drying device 19. The speed of pulses output through the computer 15 to the modulator 16 depends on the transport speed of the material 3, so that it is possible to work with different final speeds. The invention allows to expand the technological capabilities of the flat printing machine by allowing the arbitrary setting of the length of the printed image, as well as to improve the print quality by eliminating the multiple transfer of the ink image from one surface to another.
权利要求:
Claims (3)
[1]
1. A PLANE PRINTING MACHINE containing a mechanism for transporting printed material, ink-dyeing and moisturizing apparatus with knurled organs, characterized in that, in order to expand its technological capabilities and improve print quality, it has a laser radiation source for converting oleophilic material into hydrophilic or vice versa, and a control and scanning system for the laser beam in the transverse direction relative to the direction of transportation of the processed material, while the rolling elements lighter and colorful devices are installed in the path of movement of the printed material to interact with the latter, and a laser radiation source is placed in front of the moisturizing and colorful devices in the direction of movement of the printed material.
ABOUT
[2]
2. Machine by π. 1, characterized in that it has a means of applying a hydrophilic or olefil coating to the printed surface of the processed material, placed in front of the laser radiation source along the movement of the processed material.
[3]
3. Machine pop. 1, I am distinguished by the fact that it has a drying device installed behind the colorful apparatus.
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同族专利:
公开号 | 公开日
FR2392828A1|1978-12-29|
JPS544607A|1979-01-13|
GB2002132A|1979-02-14|
DE2725093B2|1980-03-20|
JPH062427B2|1994-01-12|
FR2392828B1|1984-10-19|
CH636560A5|1983-06-15|
GB2002132B|1982-07-21|
DE2725093C3|1984-04-05|
DE2725093A1|1978-12-07|
引用文献:
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DE102007030566A1|2007-03-28|2008-10-02|Man Roland Druckmaschinen Ag|Non-destructive testing of curing or drying of paints and varnishes|
EP3820701A4|2018-07-13|2022-03-09|Hewlett Packard Development Co|Comparisons of heating element power level parameters|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
DE19772725093|DE2725093C3|1977-06-03|1977-06-03|Printing process and arrangement for its implementation|
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