JPH0852857A - Printing-paper cooler of rotary offset press - Google Patents
Printing-paper cooler of rotary offset pressInfo
- Publication number
- JPH0852857A JPH0852857A JP19304894A JP19304894A JPH0852857A JP H0852857 A JPH0852857 A JP H0852857A JP 19304894 A JP19304894 A JP 19304894A JP 19304894 A JP19304894 A JP 19304894A JP H0852857 A JPH0852857 A JP H0852857A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- printing paper
- cooling
- drying device
- ink drying
- 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.)
- Pending
Links
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、オフセット輪転印刷機
の印刷紙冷却装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing paper cooling device for an offset rotary printing press.
【0002】[0002]
【従来の技術】オフセット輪転印刷機は、印刷紙上のイ
ンキを速やかに乾燥させるため、印刷紙が印刷部を出る
箇所にインキ乾燥装置を有している。一般にインキ乾燥
装置は走行する印刷紙の表面を熱風で乾燥させるように
なっており、そのためインキ乾燥装置を出た印刷紙は加
熱のため膨脹し伸びている。しかし、印刷紙を伸びたま
ま折り機、スタッカーバンドラー等に送ると加工不良を
生じるから、インキ乾燥装置の後方には印刷紙を冷却す
るための冷却ロールが設けられている。インキ乾燥装置
を出た印刷紙はこの冷却ロールに接触し常温近くまで冷
却された後折り機等に送られ、所定の寸法に折り曲げら
れたり、切断されたりして折丁とされる。2. Description of the Related Art An offset rotary printing press has an ink drying device at a position where the printing paper leaves a printing section in order to quickly dry the ink on the printing paper. Generally, the ink drying device is designed to dry the surface of the running printing paper with hot air, so that the printing paper exiting the ink drying device expands and expands due to heating. However, if the printing paper is sent to the folding machine, stacker bundler, or the like while being stretched, a processing failure occurs. Therefore, a cooling roll for cooling the printing paper is provided behind the ink drying device. The printing paper coming out of the ink drying device is brought into contact with this cooling roll, cooled to near room temperature, and then sent to a folding machine or the like to be folded or cut into a predetermined size to be a signature.
【0003】[0003]
【発明が解決しようとする課題】ところが、従来は印刷
紙に冷却ロールを単に接触させるのみであるから、冷却
効果が小さく、印刷紙が伸びたまま折り機等で切断等さ
れ折丁とされることになる。そのような折丁は画像位置
や寸法に狂いを生じ易い。However, since the cooling roll is simply brought into contact with the printing paper in the related art, the cooling effect is small, and the printing paper is cut while being stretched by a folding machine to form a signature. It will be. Such a signature is likely to cause an error in image position or size.
【0004】また、印刷紙はインキ乾燥装置での加熱に
より乾燥しており、折丁とされた後大気中の水分を吸収
し膨脹する。そのため、他の折丁と組み合わされ製本さ
れると折丁同士は乾燥条件が異なることから、書籍に寸
法狂い等の品質低下を来す。Further, the printing paper is dried by heating in the ink drying device, and after being folded, it absorbs moisture in the atmosphere and expands. Therefore, when the booklet is combined with other signatures and bound, the drying conditions of the signatures are different from each other, so that the quality of the book is deteriorated such as dimensional error.
【0005】本発明はそのような問題点を解決すること
ができるオフセット輪転印刷機の印刷紙冷却装置を提供
することを目的とする。An object of the present invention is to provide a printing paper cooling device for an offset rotary printing press that can solve such problems.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、オフセット輪転印刷機のインキ乾燥装置
の後方に該インキ乾燥装置を通過した印刷紙に接触する
冷却ロールが設けられ、該冷却ロール上の印刷紙に対し
接離可能な水付けロールが該冷却ロールの近傍に設けら
れ、該水付けロールの表面に冷却水を吹き掛けるノズル
が該水付けロールの近傍に配設されたオフセット輪転印
刷機の印刷紙冷却装置の構成を採用している。In order to achieve the above-mentioned object, the present invention provides a cooling roll which comes into contact with a printing paper passing through the ink drying device behind the ink drying device of an offset rotary printing machine, A watering roll capable of coming into contact with and separating from the printing paper on the cooling roll was provided in the vicinity of the cooling roll, and a nozzle for spraying cooling water on the surface of the watering roll was arranged in the vicinity of the watering roll. The structure of the printing paper cooling device of the offset rotary printing press is used.
【0007】[0007]
【作用】印刷紙は、オフセット輪転印刷機の給紙部から
繰り出され、印刷部で印刷に供され、インキ乾燥装置で
インキを乾燥され、冷却ロールで冷却され、折り機で折
丁とされる。The printing paper is fed from the paper feed section of the offset rotary printing machine, is used for printing in the printing section, the ink is dried by the ink drying device, is cooled by the cooling roll, and is folded by the folding machine. .
【0008】冷却ロールは印刷紙がインキ乾燥装置を出
たところで印刷紙の一方の表面に接触し冷却する。水付
けロールは印刷紙の反対側の表面に接触する。水付けロ
ールには冷却水がノズルから吹き掛けられ、冷却水は水
付ロールを介して印刷紙に転移し印刷紙を冷却する。こ
のように、印刷紙は冷却ロールと水付けロールの双方に
接するので、速やかに効率良く冷却され、通常の寸法に
復帰する。When the printing paper leaves the ink dryer, the cooling roll contacts one surface of the printing paper to cool it. The watering roll contacts the opposite surface of the printing paper. Cooling water is sprayed from the nozzle onto the watering roll, and the cooling water is transferred to the printing paper via the watering roll to cool the printing paper. In this way, since the printing paper comes into contact with both the cooling roll and the watering roll, the printing paper is cooled quickly and efficiently and returns to the normal size.
【0009】また、冷却水は印刷紙に浸透し、インキ乾
燥装置で印刷紙より除去された水分を補填する。このた
め、印刷紙は適度な湿度を保った状態で折り機等に至り
適正に加工される。Further, the cooling water permeates the printing paper and supplements the moisture removed from the printing paper by the ink drying device. Therefore, the printing paper reaches a folding machine or the like and is appropriately processed while maintaining an appropriate humidity.
【0010】[0010]
【実施例】以下、図面に基づき、本発明に係るオフセッ
ト輪転印刷機の印刷紙冷却装置の実施例について説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a printing paper cooling device for an offset rotary printing press according to the present invention will be described below with reference to the drawings.
【0011】印刷紙はオフセット輪転印刷機の給紙部か
ら繰り出され、印刷部で両面印刷される。そして、図1
に示されるように、該印刷紙1はインキ乾燥装置2に送
り込まれるようになっている。インキ乾燥装置2は、熱
風吹出ノズル2aから熱風を印刷紙1の表面に吹き掛け
て印刷紙1上のインキを乾燥するようになっている。The printing paper is fed from the paper feed section of the offset rotary printing machine and double-sided printed in the printing section. And FIG.
As shown in FIG. 1, the printing paper 1 is fed into the ink drying device 2. The ink drying device 2 is adapted to blow hot air from the hot air blowing nozzle 2a onto the surface of the printing paper 1 to dry the ink on the printing paper 1.
【0012】このインキ乾燥装置2を出た印刷紙1は次
のような構成の印刷紙冷却装置に送られ除熱される。印
刷紙冷却装置3は、図1に示されるように、インキ乾燥
装置2を通過した印刷紙1に接触する該インキ乾燥装置
2の後方に設けられた冷却ロール4と、該冷却ロール4
上の印刷紙1に対し接離可能な該冷却ロール4の近傍に
設けられた水付けロール5と、該水付けロール5の表面
に冷却水6を吹き掛ける該水付けロール5の近傍に配設
されたノズル7とを有している。The printing paper 1 discharged from the ink drying device 2 is sent to a printing paper cooling device having the following structure to remove heat. As shown in FIG. 1, the printing paper cooling device 3 includes a cooling roll 4 provided behind the ink drying device 2 that comes into contact with the printing paper 1 that has passed through the ink drying device 2, and the cooling roll 4.
The watering roll 5 is provided in the vicinity of the cooling roll 4 that can be brought into contact with and separated from the upper printing paper 1, and the watering roll 5 that sprays cooling water 6 on the surface of the watering roll 5 The nozzle 7 is provided.
【0013】冷却ロール4は、印刷紙1の両面に夫々接
触するように複数本設けられ、走行する印刷紙1に接し
て連れ回りするようになっている。もちろん、冷却ロー
ル4は1本のみ又は3本以上設けることもできる。A plurality of cooling rolls 4 are provided so as to come into contact with both sides of the printing paper 1, respectively, and come into contact with the traveling printing paper 1 and rotate together. Of course, only one cooling roll 4 or three or more cooling rolls 4 may be provided.
【0014】水付けロール5は、水の付着しやすい例え
ばゴムロールであり、支持台8上に回動可能に軸支され
ており、支持台8がエアシリンダ(図示せず)の駆動に
より矢印方向に往復運動することにより冷却ロール4上
の印刷紙1に接触又は離反するようになっている。水付
けロール5は印刷紙1に接触すると印刷紙1の走行に伴
って回転することになる。支持台8及びエアシリンダは
印刷機のフレーム(図示せず)に固定されるハウジング
9内に設けられている。The watering roll 5 is, for example, a rubber roll to which water easily adheres, is rotatably supported on a support base 8, and the support base 8 is driven by an air cylinder (not shown) in the direction of the arrow. By reciprocally moving, the printing paper 1 on the cooling roll 4 is brought into contact with or separated from the printing paper 1. When the watering roll 5 comes into contact with the printing paper 1, it will rotate as the printing paper 1 travels. The support base 8 and the air cylinder are provided in a housing 9 fixed to a frame (not shown) of the printing machine.
【0015】ノズル7は水付けロール5の表面に沿って
複数個配置され、冷却水タンク10からの冷却水を水付
けロール5の表面に向って霧状に噴射するようになって
いる。冷却水タンク10からノズル7に至る配管には冷
却水の供給をON・OFFするための電磁弁11が設け
られている。A plurality of nozzles 7 are arranged along the surface of the watering roll 5 and spray the cooling water from the cooling water tank 10 toward the surface of the watering roll 5 in a mist form. A solenoid valve 11 for turning on / off the supply of the cooling water is provided in a pipe from the cooling water tank 10 to the nozzle 7.
【0016】しかして、インキ乾燥装置2を出た印刷紙
1は、冷却ロール4で冷却され、かつ水付ロール5から
供給される冷却水で冷却され常温に戻る。その後、この
印刷紙1は折り機(図示せず)で折丁とされ、必要に応
じスタッカーバンドラー(図示せず)で結束される。The printing paper 1 exiting the ink drying device 2 is cooled by the cooling roll 4 and cooled by the cooling water supplied from the watering roll 5 to return to room temperature. Thereafter, the printing paper 1 is folded into a signature by a folding machine (not shown) and is bound by a stacker bundler (not shown) as necessary.
【0017】[0017]
【発明の効果】本発明によれば、冷却ロールと水付けロ
ールとが印刷紙に両面から接触しつつ印刷紙を冷却する
ので、冷却効率に優れ、インキ乾燥装置を通過する際に
加熱により伸びた印刷紙を速やかに正常長さまで復帰さ
せることができる。従って、印刷速度を高めることがで
きるのはもちろんのこと、折り機での加工精度を高める
ことができる。According to the present invention, since the cooling roll and the watering roll contact the printing paper from both sides to cool the printing paper, the cooling efficiency is excellent, and the paper is stretched by heating when passing through the ink drying device. The printed paper can be quickly returned to the normal length. Therefore, not only the printing speed can be increased, but also the processing accuracy in the folding machine can be increased.
【0018】また、水付けロールにノズルから吹き掛け
られた冷却水が水付ロールを介して印刷紙に転移し浸透
するので、インキ乾燥装置で印刷紙より除去された水分
を補填することができる。このため、印刷紙を適度な湿
度を保った状態で折り機に送り、折り機での加工精度ひ
いては製本機での製本品質を高めることができる。ま
た、印刷紙に生じた静電気を冷却水の供給により除去す
ることができる。Further, since the cooling water sprayed from the nozzle to the watering roll is transferred to and penetrates the printing paper via the watering roll, it is possible to supplement the water removed from the printing paper by the ink drying device. . Therefore, the printing paper can be sent to the folding machine while maintaining an appropriate humidity, and the processing accuracy in the folding machine and thus the bookbinding quality in the bookbinding machine can be improved. Further, static electricity generated on the printing paper can be removed by supplying cooling water.
【図1】本発明に係るオフセット輪転印刷機の印刷紙冷
却装置の説明図である。FIG. 1 is an explanatory view of a printing paper cooling device of an offset rotary printing press according to the present invention.
1…印刷紙 2…インキ乾燥装置 4…冷却ロール 5…水付けロール 6…冷却水 7…ノズル 1 ... Printing paper 2 ... Ink drying device 4 ... Cooling roll 5 ... Watering roll 6 ... Cooling water 7 ... Nozzle
Claims (1)
の後方に該インキ乾燥装置を通過した印刷紙に接触する
冷却ロールが設けられ、該冷却ロール上の印刷紙に対し
接離可能な水付けロールが該冷却ロールの近傍に設けら
れ、該水付けロールの表面に冷却水を吹き掛けるノズル
が該水付けロールの近傍に配設されたことを特徴とする
オフセット輪転印刷機の印刷紙冷却装置。1. A watering roll which is provided behind an ink drying device of an offset rotary printing machine and which is provided with a cooling roll which comes into contact with the printing paper that has passed through the ink drying device and which can be brought into contact with and separated from the printing paper on the cooling roll. Is provided in the vicinity of the cooling roll, and a nozzle for spraying cooling water on the surface of the watering roll is disposed in the vicinity of the watering roll.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19304894A JPH0852857A (en) | 1994-08-17 | 1994-08-17 | Printing-paper cooler of rotary offset press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19304894A JPH0852857A (en) | 1994-08-17 | 1994-08-17 | Printing-paper cooler of rotary offset press |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0852857A true JPH0852857A (en) | 1996-02-27 |
Family
ID=16301318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19304894A Pending JPH0852857A (en) | 1994-08-17 | 1994-08-17 | Printing-paper cooler of rotary offset press |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0852857A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1442881A1 (en) * | 2003-01-30 | 2004-08-04 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for applying a liquid mixture on a printed web |
US7694642B2 (en) | 2003-01-30 | 2010-04-13 | Goss Contiweb B.V. | Device for applying a liquid mixture to web-shaped printing material |
-
1994
- 1994-08-17 JP JP19304894A patent/JPH0852857A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1442881A1 (en) * | 2003-01-30 | 2004-08-04 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for applying a liquid mixture on a printed web |
US7694642B2 (en) | 2003-01-30 | 2010-04-13 | Goss Contiweb B.V. | Device for applying a liquid mixture to web-shaped printing material |
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