专利摘要:
A rotary sheet printing machine provided with a selection mechanism, e.g. transfer and turning drum 10, between two impression cylinders to allow the second impression to be made on either side of a sheet bearing a first impression, includes a drying mechanism arranged between the first impression zone and the second impression cylinder. Preferably, drying equipment 12 is positioned adjacent the first impression cylinder 5 downstream of the first impression zone but upstream of the drum 10. <IMAGE>
公开号:SU937237A1
申请号:SU787770264
申请日:1978-08-09
公开日:1982-06-23
发明作者:Ене Ханс;Форстер Карл-Хейнц;Шанце Клаус;Циммерманн Ханс;Лукас Кристян;Беме Хейнц;Еныш Арндт;Шене Хелмут;Шулц Хорст;Мюллер Вольфганг;Херинг Аксел
申请人:"Феб Полиграф Лейпциг"(Инопредприятие);
IPC主号:
专利说明:

one
the invention relates to a sheet rotary printing machine of an aggregate structure with a drying device and a device for selective facial printing or facial printing and printing with a turn.
When using a device for facial printing and printing with a revolution in sheet-fed rotary printing machines, there are several features compared to facial printing; when the sheet lies after the device for facial printing and printing with its printing side printed on the subsequent printing cylinder, problems of scaling appear (wetting of printed cylinder paint), and thus there is a loss of color or color changes.
In order to prevent marking, the printing cylinders must be washed in short time intervals or carried out in such a way as to prevent the fresh paint from being scaled to the greatest possible extent (DE-AS 1258 873). In addition to THAT, the newly printed sheet, when rotated, makes contact with the guiding sheet device located below the printing cylinder and transfer drum, and there is a problem of dragging. Devices are also known to prevent lubrication (DD 125 394).
In facial and reverse printing devices, which operate on the trailing edge principle, the sheet is received by the turning device from the closed surface of the previous printing cylinder, problems arise because the sheet is not removed from the previous printing cylinder due to
10, the adhesion capacity and gripping system of the turning device should be relatively strong. Sheet stripping devices are known (patent DD 101,337).
Finally, drying devices are also known, which dry the sheet before withdrawal (DE OS 2 402 435) or between printing devices in a special unit (household patent DD 123 071). The many devices used to solve problems when using a device for facial printing and printing with a turn, cause high technical costs, and the occupied area of these devices is large. The purpose of the invention is to reduce the technical costs arising from the use of a device for facial printing and printing with a turn, and to reduce the footprint for installing these devices while improving print quality. The objective of the invention is to create a single device that optimally solves the problem of grinding, dragging and removing sheets. The task is solved by the fact that the drying device is designed as a full-width printing press and acting on a sheet-drying device that guides the printing cylinder and is located on the path taken by the sheet between the printing contact area formed by the printing cylinder and the corresponding cylinder of the previous printing device, formed as a rotary drum device for selective facial printing and printing with circulation, and a sheet transfer station connected to the device for selectively th facial printing and printing a turn on the printing cylinder of the subsequent printing device. The device for the radial mask is protected by insulating sheets from the paint cylinders and rollers of the dyeing apparatus. The printing cylinder, which interacts with the device for the beam in-situ, has a cooling device. Air suction devices are located in the area of the side surface of the printing cylinder, which interacts with the device for radiation drying. Problems arising from the use of a device for facial printing and printing with a turn are solved by one device. On a freshly printed sheet, the ink is at least dried so that it does not overwind onto the guides of the device and cannot be brushed onto the printing cylinder of the subsequent printing device. Due to the accumulation of heat in the impacted boundaries, the adhesion ability falls, holding the sheet on the printing cylinder, and the sheet is removed from the printing cylinder. This is achieved by a known beam drying device which is located on the coated side surface of the printing cylinder.
FIG. 1 is arranged a sheet rotary printing machine with a device for facial printing and printing with circulation; in fig. 2 - part with a printing device
The sheet rotary printing machine of the modular construction consists of a feeder 1, an overlay printing device 2, numerous devices 3 of sequential printing 3, as well as an airborne, aggregate 4.
Each printing device has a printing cylinder 5, as well as a plate formula of the invention.
权利要求:
Claims (4)
[1]
1. Sheet rotary printing machine of aggregate construction with a drying device and a device for selective facial printing or facial printing and printing with a turn, characterized in that the drying device is designed as a printing device located across the entire width and acting on the printing cylinder-guided sheet 12 for beam drying and located between the area of the printed contact formed by the printing cylinder biv in the case of the use of the offset method - the offset cylinder 7. The plate cylinder 6 interacts with color The device 8 and the humidifying device 9. Between the printing devices there is a transfer drum 10 or a device 11 for selective face printing and printing from a turn, made as a turning drum. This device is made in a known manner, it acts after switching to the front seal as a transfer drum. Between the printers, there is a device 12 for the beam substrate, which acts on the side-coated side of the printing cylinder 5, which precedes the device 11 for facial printing and printing with a turn. The device 12 for beam drying is made as an ultraviolet drying device due to the flat structure required at this place. The device 12 for radiation drying is sewn up using insulating sheets 13 from the leading paint of cylinders 6 and 7 and the rolls of the dyeing apparatus 8. The printing cylinder 5 has a cooling device And, and, in addition, devices 15 for air suction are located in the device for beam drying, which prevents the negative effect on the printing result due to the harmful accumulation of heat. The ink of the freshly printed page lying on the printing cylinder 5 of the sheet 16 is dried by means of the device for the radial nipple 12 for as long as the ink can be dragged onto the sheet guiding device 17. As a result, the device guiding sheets must not be made expensive. There is no special implementation of the printing cylinder connected to the device for facial printing and printing with a turn. Also, the device for removing sheets, located in the printing cylinder in front of the device for facial printing and printing with circulation, is eliminated due to the heat accumulation used within certain limits.
lindr and the corresponding cylinder of the preceding printing device, and sheet transferring means made in the form of a turning drum of the device 11 for selective face printing and printing from a turn connected to a printing cylinder of a subsequent printing device for selective face printing and printing from a turn.
[2]
2. The machine according to claim 1, characterized in that the device 12 for beam drying is protected by insulating sheets 13 from the leading paint of cylinders 6 and 7 and rollers of the dyeing apparatus 8.
[3]
3.Mashchina according to claim 1, characterized in that the printing cylinder 5, which interacts with the device for beam drying 12, is equipped with a cooling device 14.
[4]
4. The machine according to claim 1, characterized in that devices 15 for suctioning air are located in the area of the side surface of the printing cylinder 5, interacting with the device 12 for the radial essence.
Recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic
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同族专利:
公开号 | 公开日
GB2003427A|1979-03-14|
GB2003427B|1982-05-26|
SE435156B|1984-09-10|
FR2401773B1|1983-05-27|
DD135882A1|1979-06-06|
CS207513B1|1981-08-31|
SE7809328L|1979-03-06|
DE2827520A1|1979-03-08|
FR2401773A1|1979-03-30|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

FR883712A|1942-07-01|1943-07-13|Method of drying printed surfaces, especially in multi-color intaglio printing machines, and multi-color intaglio printing machines|
US3008242A|1957-10-11|1961-11-14|Miehle Goss Dexter Inc|Radiant energy means for indurating materials|
DE2608661C3|1976-03-03|1983-11-17|M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach|Device for printing and subsequent drying of sheets in a gripper connection|DD141807A1|1979-02-01|1980-05-21|Hans Johne|DRYING DEVICE ON A BOW ROTARY PRINTING MACHINE|
DE3939368C2|1989-11-29|1992-04-16|Siegfried 4800 Bielefeld De Paarmann|
DE4213024B4|1992-04-21|2005-01-27|Heidelberger Druckmaschinen Ag|Sheetfed|
CA2156005A1|1994-08-16|1996-02-17|John W. Bird|Multiple color offset press utilizing aqueous ink and waterless printing plates with interstation drying and extraction|
DE19541160C1|1995-11-04|1997-01-30|Roland Man Druckmasch|Process for cleaning a cylinder of a rotary printing press|
DE19541159C2|1995-11-04|1999-01-07|Roland Man Druckmasch|Washing device for a printing machine|
DE19857984B4|1998-12-16|2007-12-27|Koenig & Bauer Aktiengesellschaft|Dryer working with excimer lamps in sheet-fed presses|
US6283590B1|1999-10-04|2001-09-04|Xerox Corporation|Liquid ink printer including a non-scorching dryer assembly|
DE10106011A1|2001-02-05|2002-08-08|Koenig & Bauer Ag|Method and device for preventing lay-off, smearing and marking in face and reverse printing|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
DD20088177A|DD135882A1|1977-09-05|1977-09-05|FORM ROTARY PRINTING PRESS|
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