专利摘要:
A printing press includes an impression cylinder formed with axially directed channels for sheet-clamping means, a radiant dryer arranged above the impression cylinder to radiate heat on the printed sheet, a screening hood mechanism tiltably mounted for movement between an inactive position in which the sheet is exposed to heat rays from the dryer and a screening position; the driving motor is connected to the power source by two parallel power supply circuits each including a separate switch, one of the switches being actuated by a relay which in turn is actuated by series-connected contacts closed respectively when the dryer is in operation, when the driving motor is disconnected, when the printing machine stops, and when the channel for the clamping means on the impression cylinder is not facing the dryer.
公开号:SU1036571A1
申请号:SU797770990
申请日:1979-12-19
公开日:1983-08-23
发明作者:Ханс Йоне;Кристиан Лукас;Карл-Хейнц Ферстер;Клаус Шанце;Арндт Йентцш;Вольфганг МЮЛЛЕР;Хорст Шульц
申请人:Феб Полиграф Лейпциг (Инопредприятие);
IPC主号:
专利说明:

The invention relates to the printing industry, in particular to sheet rotary printing machines. A rotary sheet printing press is known with a radiation dryer acting on a surface of a sheet transporting cylinder (see DDB 1 F / 20.0 881). When the machine is stopped, this radiation dryer can be closed with a screen izvetsnym from patent-DE-No. 22350 7. A disadvantage of the known technical solution is that despite the protection of the surface of the sheet transporting cylinder from the effect of the dryer, the screen still has negative heat effects on the dryer on the surface of the sheet transporting cylinder, the paper sheet to be processed when the machine stops. The aim of the invention is to avoid undesirable effects of the heat rays of the dryer on the paper sheet when the machine stops, i.e. increase its reliability. This goal is achieved by the fact that the drying device for a sheet rotary printing machine, containing a sheet transporting cylinder installed above the surface of a gripper channel from the impact of the drying agent when the machine stops, has a means of installing the gripper channel of the machine porting cylinder of the drying agent when the machine stops, which includes at least one pivotally fixed spring-loaded lever on the screen with a roller for interacting with the supporting surface a sheet transporting cylinder and a limit switch placed on the path of movement of the lever with a roller and connected to the drive of the machines. In FIG. 1 is a diagram of a sheet-fed rotary press; FIG. 2 shows the different positions of the drying means, the screen and the means for installing the channel of the grippers opposite the drying means during operation and shutdown of the machine; FIG. 3 is a switching circuit. A sheet rotary printing machine of conventional design with two printing sections 1.1, a feeder 2 and a sheet-spreading device 3 is equipped with radiation drying means C, which acts on sheet 6 transported by the sheet transporting cylinder 5 and the gripping channels 8, The drying device is equipped with a screen 10 and a means of installing the channel of the grippers 8 of the sheet transporting cylinder 5 opposite the drying means when the machine stops. 11, which, according to the embodiment shown in FIG. 2, consists of two levers 12 which are hinged on the screen 10 with rollers-13) interacting with the surfaces 7 of the cylinder 5. On the free arms k of the levers 12 there are springs 15 supported on the frame. The shoulders of the I levers 12 interact with limit switches 16 located along the path of their movement. FIG. 3 shows a diagram of the switching means of installation 11. In the second control circuit of the drive motor 9 (the first control circuit is equipped according to a known scheme) are arranged in series contact Dryer in operation 17, contact Stop machine 18, contact Stop machine 19 and limit switches of channel setting means 11. Following the Stop Machine 18 contact, the current circuit branches to the switching device for the shielding mechanism, and the channel 11 circuit means the current circuit branches to the acoustic mu Warning device 20. The principle of operation is as follows. When the printing machine is operating normally, the screen 10 is in the position shown in FIG. 2 and in a passive position, i.e. drying means C acts on sheet 6. At the same time, the contact Dryer in operation 17 is closed. When the Stop Machine 18 command is given, the screen 10 is thus inserted between the drying means and the sheet transporting cylinder 5. At the same time, the rollers 13 begin to either come into contact with the surface 8 or are located in the channel of the grippers 8. In the first case, the switches 16 do not operate, in the second case, the switches 1b is closed. When the machine stops, contact 19 stops the machine.
When the limit switches 16 are also closed, the channel of the grippers 8 is opposite the drying means 4 {FIG. 2 fe) - no further action is taken. When the switches 16 are not closed, the channel of the grippers 8 is not opposite the drying means and the rollers f interact with the surface 7 of the cylinder 5 - the acoustic alarm 20 is activated and the drive motor 9 is not turned off until the rollers 13 are not located in the channel of the grippers 1-3 ° and limit switches 16 are not closed.
Thus, the final stop of the cylinder 5 is ensured only at that moment when its channel of the grippers 8 is located opposite the drying means C and the latter does not act on the bearing surface 7 of the cylinder 5 and, consequently, on the sheet 6.
It is 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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权利要求:
Claims (2)
[1]
(541 1. A DRYING DEVICE FOR A SHEET ROTARY PRINTING MACHINE, containing a radiation drying means and a screen installed above the surface of a gripping channel of a sheet-transporting cylinder of a printing press and a screen to protect the surface of the sheet-transporting cylinder from the effects of the drying means when the machine stops, from and without In addition, it has a means for setting the channel for capturing the sheet transporting cylinder of the machine opposite the drying means when the machine stops 11.
[2]
. 2. The apparatus of π ~ Ί, differing o f e c i in that the gripper means .ustanovki channel listotransportiruyuschego machine cylinder opposite the drying means when stopping the machine includes at least one straight - hinged on the screen spring-loaded lever with a roller for interaction with a support on top; a sheet-transporting cylinder and a limit switch located on. ways of moving the lever with the roller and connected to the drive 9 of the machine.
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同族专利:
公开号 | 公开日
DE3001355C2|1987-01-22|
CS224466B1|1984-01-16|
US4312137A|1982-01-26|
JPS55130779A|1980-10-09|
DE3001355A1|1980-08-07|
DD141807A1|1980-05-21|
引用文献:
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US1878318A|1930-12-26|1932-09-20|Thomas F Pinder|Printing|
US2656449A|1951-05-01|1953-10-20|Gen Electric Canada|Electric radiant heat drier|
US3637983A|1970-06-01|1972-01-25|Victor R Nelson|Drier for sheet material|
US3894343A|1972-06-15|1975-07-15|Thermogenics Of New York|Ink curing and drying apparatus|
US4037329A|1976-02-13|1977-07-26|American Can Company|Shutter and system employing same|
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DD135882A1|1977-09-05|1979-06-06|Hans Johne|FORM ROTARY PRINTING PRESS|JPH0417791B2|1983-09-01|1992-03-26|Dainippon Ink & Chemicals|
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DE4010191C2|1990-03-30|1994-10-13|Heidelberger Druckmasch Ag|Emitter device for drying and / or curing ink and / or lacquer layers on print media|
US6293196B1|1993-10-06|2001-09-25|Howard W. DeMoore|High velocity, hot air dryer and extractor|
DE9405223U1|1994-03-28|1994-06-09|Roland Man Druckmasch|Dryer device for a sheet-fed rotary printing machine|
US5727472A|1995-07-25|1998-03-17|Burgio; Joseph Thomas|Apparatus and method for drying sheets printed on a multi-stand press|
US5832833A|1995-07-25|1998-11-10|Burgio; Joseph Thomas|Apparatus and method for drying a substrate printed on a multi-stand offset press|
US6401608B1|2000-05-05|2002-06-11|Halm Industries, Co., Inc.|Printing press with perfecting station|
JP2005125739A|2003-10-27|2005-05-19|Heidelberger Druckmas Ag|Sheet-feed press with drier|
CN107388779B|2017-06-30|2019-08-09|嘉兴万源时装有限公司|A kind of automation drying unit of garment material|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
DD79210748A|DD141807A1|1979-02-01|1979-02-01|DRYING DEVICE ON A BOW ROTARY PRINTING MACHINE|
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