JPH0533914Y2 - - Google Patents
Info
- Publication number
- JPH0533914Y2 JPH0533914Y2 JP1986065885U JP6588586U JPH0533914Y2 JP H0533914 Y2 JPH0533914 Y2 JP H0533914Y2 JP 1986065885 U JP1986065885 U JP 1986065885U JP 6588586 U JP6588586 U JP 6588586U JP H0533914 Y2 JPH0533914 Y2 JP H0533914Y2
- Authority
- JP
- Japan
- Prior art keywords
- running paper
- paper
- drying device
- cooling
- outlet end
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims description 35
- 238000001035 drying Methods 0.000 claims description 26
- 238000007639 printing Methods 0.000 claims description 15
- 238000007602 hot air drying Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 25
- 239000000779 smoke Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Drying Of Solid Materials (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は輪転印刷機に組み込まれている熱風に
よる乾燥装置の走行紙出口端から走行紙の移動に
伴われて熱ガスが漏出するのを防止する装置に関
するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is designed to prevent hot gas from leaking as the running paper moves from the running paper outlet end of a hot air drying device built into a rotary printing press. It relates to a device for preventing this.
［従来の技術］
オフセツト輪転印刷機においては、一般に第２
図に示すように、給紙機から送られてくる走行紙
１０は複数（例えば同図では４台）の印刷ユニツ
ト１２で印刷され、乾燥装置１４でインキの乾燥
が行われ、複数のクーリングローラ１６を備えた
冷却装置１８で冷却されて折機に送られる構成が
採られている。[Prior art] In offset rotary printing presses, the second
As shown in the figure, a running paper 10 sent from a paper feeder is printed by a plurality of printing units 12 (for example, four in the figure), the ink is dried in a drying device 14, and a plurality of cooling rollers are used to dry the ink. A configuration is adopted in which the paper is cooled by a cooling device 18 having a cooling device 16 and sent to a folding machine.
インキの乾燥を行う乾燥装置１４には種々の乾
燥方式があるが、一般にガスによる直火−熱風併
用方式か熱風方式が採用されている。何れにして
もバーナーで加熱された熱風が乾燥装置１４の内
部を循環し、それによつて通過する走行紙のイン
キを乾燥させる。このとき加熱によつてインキ中
の溶剤や各種化学物質が蒸発し熱風は汚染され
る。そのため従来技術では熱風が漏洩しないよう
に乾燥装置１４の内部を負圧に保ち、加熱循環す
る熱ガスの一部（通常20〜30％程度）を排ガス処
理して外部に放出する構成となつている。 There are various drying methods for the drying device 14 that dries the ink, but generally a gas direct flame/hot air combination method or a hot air method is adopted. In either case, hot air heated by a burner circulates inside the drying device 14, thereby drying the ink on the running paper passing through it. At this time, the solvent and various chemical substances in the ink evaporate due to heating, and the hot air becomes contaminated. Therefore, in the conventional technology, the inside of the drying device 14 is maintained at a negative pressure to prevent hot air from leaking, and a part of the heated and circulating hot gas (usually about 20 to 30%) is treated as exhaust gas and released to the outside. There is.
［考案が解決しようとする問題点］
走行紙１０は一般に毎分300〜400ｍ程度の速度
で走行するから、例え乾燥装置１４内を負圧にし
ていても走行紙１０に伴われて高温の（80℃以
上、場合によつては120℃以上の）ガスが外部に
漏出し、煙やガス等によつて作業環境を悪化させ
る。そのため乾燥装置外部に集塵器やフード等を
取り付けねばならなかつた。[Problems to be solved by the invention] Since the running paper 10 generally runs at a speed of about 300 to 400 m/min, even if the inside of the drying device 14 is under negative pressure, high temperature ( (80℃ or higher, in some cases 120℃ or higher) gas leaks outside and deteriorates the working environment due to smoke, gas, etc. Therefore, it was necessary to install a dust collector, hood, etc. outside the drying device.
また走行紙表面に伴われて漏出してくる熱ガス
や汚染物のためクーリングローラの表面が汚れ印
刷品質を低下させる欠点があつたし、冷却効率が
下がり印刷スピードを高めることができず、また
冷却装置も何段ものクーリングローラを必要とし
大型化する等の欠点もあつた。 In addition, the surface of the cooling roller becomes dirty due to hot gases and contaminants that leak out along with the surface of the running paper, reducing print quality, reducing cooling efficiency and making it impossible to increase printing speed. The cooling device also had drawbacks, such as requiring multiple stages of cooling rollers and increasing its size.
本考案の目的は上記のような従来技術の欠点を
解消し、走行紙の移動に伴われて漏出してくる熱
ガスが外部に放散されたりクーリングローラに達
するのを防止し、印刷品質と印刷効率の向上を図
ることができ、また作業環境を良好に維持できる
ような装置を提供することにある。 The purpose of the present invention is to eliminate the above-mentioned drawbacks of the conventional technology, prevent hot gas leaking out as the paper moves, and prevent it from dissipating to the outside or reaching the cooling roller, thereby improving print quality and printing. The object of the present invention is to provide a device that can improve efficiency and maintain a good working environment.
［問題点を解決するための手段］
本考案は輪転印刷機に組み込まれている熱風乾
燥装置の走行紙出口端に付設される熱ガス漏出防
止装置である。本明細書において「熱風乾燥装
置」とは、熱風を用いて乾燥させる装置をいい、
狭義の熱風のみによる乾燥装置のみならず直火−
熱風併用式の装置なども含まれる。[Means for Solving the Problems] The present invention is a hot gas leak prevention device attached to the running paper outlet end of a hot air drying device incorporated in a rotary printing press. In this specification, "hot air drying device" refers to a device that uses hot air to dry,
Not only drying equipment using only hot air in a narrow sense, but also direct fire.
This also includes equipment that uses hot air.
前記のような目的を達成するため本考案は、乾
燥装置と冷却装置との間で走行紙を取り囲むよう
に設けられるカバーと、該カバーの内部に組み込
まれる上ノズルおよび下ノズルと、両ノズルに圧
縮空気を供給する送風機を具備している構成であ
る。 In order to achieve the above object, the present invention includes a cover provided between a drying device and a cooling device so as to surround the running paper, an upper nozzle and a lower nozzle built into the cover, and a cover for both nozzles. The structure includes a blower that supplies compressed air.
ここで上ノズルは走行紙の上側で最も給紙側の
クーリングローラの中心よりもやや後側に位置
し、ほぼ下向きに設けられている。そそれに対し
て下ノズルは走行紙の下側で乾燥装置の出口端と
上ノズルとの間に位置し、斜後ろ上向きに設けら
れている。本明細書において「後側」とは走行紙
の進行方向に対して後側、即ち給紙側を意味して
いる。 Here, the upper nozzle is located above the running paper, slightly behind the center of the cooling roller closest to the paper feed side, and is provided substantially downward. On the other hand, the lower nozzle is located below the running paper between the outlet end of the drying device and the upper nozzle, and is provided diagonally backward and upward. In this specification, the term "rear side" means the rear side with respect to the traveling direction of the running paper, that is, the paper feeding side.
［作用］
乾燥装置の内部は負圧に保たれているが、それ
でも高速で移動する走行紙が通過するとそれに伴
われて煙やガス等が漏出する。下ノズルから供給
される斜後ろ上向きの空気流と、上ノズルから供
給される下向きの空気流とによつて走行紙に同伴
する煙やガス等の前方への移動が阻止される。そ
してこれらの煙やガスは乾燥装置内の負圧と上下
両ノズルによる空気流により乾燥装置内へ追い込
まれる。周囲にはカバーが取り付けられているか
ら熱ガスが外部に漏出することはなく、周囲の作
業環境は極めて良好に保たれる。[Function] Although the inside of the drying device is maintained at a negative pressure, smoke, gas, etc. still leak out when the paper moving at high speed passes through the drying device. The oblique rearward upward airflow supplied from the lower nozzle and the downward airflow supplied from the upper nozzle prevent forward movement of smoke, gas, etc. accompanying the running paper. These smokes and gases are then driven into the drying device by the negative pressure inside the drying device and the air flow from both the upper and lower nozzles. Since a cover is attached to the surrounding area, hot gas will not leak outside, and the surrounding working environment will be maintained in an extremely good condition.
またクーリングローラの近傍に位置する上ノズ
ルは、そこから噴射される圧縮空気によつて走行
紙をクーリングローラに密着させ、クーリングロ
ーラと接触する時間をその分だけ長くし、熱ガス
がクーリングローラに達するのを防止することと
相俟て冷却効率を向上させる作用を果たす。 In addition, the upper nozzle located near the cooling roller uses compressed air jetted from the upper nozzle to bring the running paper into close contact with the cooling roller, increasing the contact time with the cooling roller by that amount, and allowing the hot gas to reach the cooling roller. This function works to improve cooling efficiency in conjunction with preventing air pollution from reaching the target area.
［実施例］
第１図は本考案に係る熱ガス漏出防止装置の一
実施例を示す説明図である。本装置は輪転印刷機
の熱風乾燥装置１４と冷却装置１８との間に取り
付けられる。[Embodiment] FIG. 1 is an explanatory diagram showing an embodiment of the hot gas leakage prevention device according to the present invention. This device is installed between a hot air drying device 14 and a cooling device 18 of a rotary printing press.
本考案に係る熱ガス漏出防止装置は、乾燥装置
１４の走行紙出口端２０と冷却装置１８との間で
走行紙１０を取り囲むように設けたカバー２２を
有する。このカバー２２内の走行紙上側で最も給
紙側のクーリングローラ１６の中心軸１６ａより
もやや後側（給紙側）の位置に幅方向に上側ダク
ト２４が設置され、その下面にほぼ真下向きに圧
縮空気を噴射する上ノズル２６が取り付けられ
る。更に同じくカバー２２内の走行紙１０の下側
で乾燥装置１４の出口端２０と前記上ノズル２６
との間の位置に幅方向に下側ダクト２８が設けら
れ、それに斜め後ろ上向きに圧縮空気を噴射する
下ノズル３０が取り付けらる。上ノズル２６や下
ノズル３０は、例えば多数の噴射口を整列させた
構成やスリツト状の噴射口を有する構成など任意
である。これら上側ダクト２４と下側ダクト２８
はそれぞれ流量調節バルブ３２を介して送風機３
４に接続される。 The hot gas leakage prevention device according to the present invention includes a cover 22 provided to surround the running paper 10 between the running paper outlet end 20 of the drying device 14 and the cooling device 18. An upper duct 24 is installed in the width direction at a position slightly rearward (paper feed side) of the central axis 16a of the cooling roller 16 closest to the paper feed side above the running paper in this cover 22, and is directed almost directly downward on the lower surface of the upper duct 24. An upper nozzle 26 for injecting compressed air is attached to the upper nozzle 26. Furthermore, under the running paper 10 within the cover 22, the outlet end 20 of the drying device 14 and the upper nozzle 26 are connected.
A lower duct 28 is provided in the width direction at a position between , and a lower nozzle 30 that injects compressed air diagonally backward and upward is attached to it. The upper nozzle 26 and the lower nozzle 30 may have any configuration, such as a configuration in which a large number of injection ports are arranged in a row, or a configuration in which they have a slit-shaped injection port. These upper duct 24 and lower duct 28
are connected to the blower 3 via the flow rate adjustment valve 32, respectively.
Connected to 4.
印刷された走行紙１０は乾燥装置１４を通常約
300〜400ｍ／分の速度で通過する。乾燥装置１４
は内部を通る走行紙に対し熱風を吹き付け乾燥す
る。この熱風はバーナーを通るように循環する
が、外部に漏出しないようにもともと負圧になつ
ている。しかし内部が例え負圧となつていても、
走行紙１０に同伴して煙やガス等が出口端２０か
ら漏出するのは避けられない。 The printed running paper 10 is normally dried in a drying device 14 at a temperature of approx.
It passes at a speed of 300-400m/min. Drying device 14
The paper is dried by blowing hot air onto the paper running inside. This hot air circulates through the burner, but is under negative pressure to prevent it from leaking outside. However, even if there is negative pressure inside,
It is unavoidable that smoke, gas, etc. leak along with the running paper 10 from the outlet end 20.
本考案では下ノズル３０から走行紙１０に対し
て斜め後ろ上向きに、また上ノズル２６からほぼ
真下向きに圧縮空気が40ｍ／秒程度の速度で吹き
付けられるから、走行紙１０と共に出てきた煙や
ガス等はこれらの圧縮空気により走行紙から分離
され、周囲がカバー２２で覆われており且つ乾燥
装置内が負圧であることもあつて乾燥装置内に向
かう矢印のような流れが生じる。 In the present invention, compressed air is blown diagonally backward and upward from the lower nozzle 30 to the running paper 10, and almost directly downward from the upper nozzle 26 at a speed of about 40 m/sec, so that the smoke that comes out with the running paper 10 and Gas and the like are separated from the running paper by these compressed air, and because the surroundings are covered with the cover 22 and the inside of the drying device is under negative pressure, a flow like an arrow toward the inside of the drying device is generated.
このため乾燥装置１４の内部で発生した煙やガ
ス等が冷却装置１８まで達することはなく、周囲
を良好な作業環境に保つことができる。またクー
リングローラ１６に高温の煙やガスが到達しない
からローラ表面が汚れることはないし、冷却効率
が向上する。更に上ノズル２６は下向きに圧縮空
気を噴射し、その力により走行紙が撓められてク
ーリングローラ１６に密着するように巻き付けら
れるため、走行紙１０とクーリングローラとの密
着範囲（巻付き範囲）が広がり、それだけ冷却効
率は向上する。 Therefore, smoke, gas, etc. generated inside the drying device 14 will not reach the cooling device 18, and the surrounding environment can be maintained in a good working environment. Furthermore, since high-temperature smoke and gas do not reach the cooling roller 16, the roller surface is not contaminated, and cooling efficiency is improved. Furthermore, the upper nozzle 26 injects compressed air downward, and the force bends the running paper and wraps it tightly around the cooling roller 16, so that the range of close contact between the running paper 10 and the cooling roller (wrapping range) is reduced. spreads, and cooling efficiency improves accordingly.
つまり上ノズル２６は走行紙に伴われて漏出し
て来る煙やガスに対してエアーカーテンのような
作用と走行紙のクーリングローラへの巻き付け作
用を果たし、下ノズル３０はエアーカーテンとし
ての作用と共にそれらのガスを乾燥装置側に押し
込む作用を果たす。 In other words, the upper nozzle 26 functions as an air curtain for smoke and gas leaking along with the running paper, and acts to wrap the running paper around the cooling roller, while the lower nozzle 30 acts as an air curtain as well. It acts to push those gases into the drying device.
［考案の効果］
本考案は上記のように乾燥装置の出口側にカバ
ーを設けると共に、走行紙の下部と走行紙上方の
クーリングローラ寄りにそれぞれ圧縮空気を噴射
するノズルを設ける構成としたから、走行紙に伴
われて出てくるガスや煙がクーリングローラ側に
漏出するのを防止し作業環境が悪化するのを防ぐ
ことができる効果があり、集塵器やフード等の大
掛りな装置が不要となる。[Effects of the invention] As described above, the present invention has a structure in which a cover is provided on the outlet side of the drying device, and nozzles for injecting compressed air are provided below the running paper and above the running paper near the cooling roller, respectively. This has the effect of preventing gas and smoke emitted by the running paper from leaking to the cooling roller side, preventing deterioration of the working environment, and eliminating the need for large-scale equipment such as dust collectors and hoods. No longer needed.
また本考案では前記のように高温のガスや煙が
冷却装置側に達しないから、クーリングローラ表
面の汚れ発生を防止し印刷品質を向上させること
ができるし、また上ノズルによる走行紙のクーリ
ングローラへの巻付け作用が加わり冷却効率を向
上させることができる。この結果、印刷速度を更
に高めることができると同時に度々のクーリング
ローラの洗浄が不要となり印刷効率が向上する効
果が生じる。 In addition, with this invention, as mentioned above, high-temperature gas and smoke do not reach the cooling device side, so it is possible to prevent stains on the surface of the cooling roller and improve printing quality. The cooling efficiency can be improved by adding the winding action to the winding. As a result, the printing speed can be further increased, and at the same time, frequent cleaning of the cooling roller becomes unnecessary, resulting in an effect of improving printing efficiency.
第１図は本考案に係る熱ガス漏出防止装置の一
実施例を示す説明図、第２図は輪転印刷機の全体
構成例を示す説明図である。
１０……走行紙、１２……印刷ユニツト、１４
……乾燥装置、１６……クーリングローラ、１８
……冷却装置、２０……出口端、２２……カバ
ー、２４……上側ダクト、２６……上ノズル、２
８……下側ダクト、３０……下ノズル、３２……
流量調節バルブ、３４……送風機。
FIG. 1 is an explanatory diagram showing an embodiment of a hot gas leakage prevention device according to the present invention, and FIG. 2 is an explanatory diagram showing an example of the overall configuration of a rotary printing press. 10... Running paper, 12... Printing unit, 14
... Drying device, 16 ... Cooling roller, 18
... Cooling device, 20 ... Outlet end, 22 ... Cover, 24 ... Upper duct, 26 ... Upper nozzle, 2
8...Lower duct, 30...Lower nozzle, 32...
Flow control valve, 34...Blower.
Claims (1)
却装置との間で走行紙を取り囲むように設けたカ
バーと、該カバー内の走行紙上側で最も給紙側の
クーリングローラの中心よりもやや後側の位置に
ほぼ下向きに設けた上ノズルと、走行紙の下側で
乾燥装置の出口端と上ノズルとの間の位置に斜め
後上向きに設けた下ノズルと、両ノズルに圧縮空
気を供給する送風機を具備している印刷機乾燥装
置の熱ガス漏出防止装置。 A cover provided to surround the running paper between the outlet end of the running paper of the hot air drying device of a rotary printing press and the cooling device, and a cover provided to surround the running paper between the running paper outlet end of the hot air drying device of a rotary printing press, and a portion slightly below the center of the cooling roller closest to the paper feed side on the upper side of the running paper within the cover. Compressed air is supplied to both nozzles, with an upper nozzle located at the rear facing almost downward, and a lower nozzle located diagonally rearward and upward at a position between the outlet end of the dryer and the upper nozzle on the underside of the running paper. A hot gas leak prevention device for printing press drying equipment equipped with a supply blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986065885U JPH0533914Y2 (en) | 1986-04-30 | 1986-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986065885U JPH0533914Y2 (en) | 1986-04-30 | 1986-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62179589U JPS62179589U (en) | 1987-11-14 |
| JPH0533914Y2 true JPH0533914Y2 (en) | 1993-08-27 |
Family
ID=30903373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986065885U Expired - Lifetime JPH0533914Y2 (en) | 1986-04-30 | 1986-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0533914Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5615020B2 (en) * | 2010-04-08 | 2014-10-29 | 株式会社大川原製作所 | Drying equipment with continuous box dryer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54108061A (en) * | 1978-02-08 | 1979-08-24 | Seikei Chin | Separating device of material gateway in continuous material dryer |
| JPS6030345A (en) * | 1983-07-28 | 1985-02-15 | Mitsubishi Heavy Ind Ltd | Cooler for printing machine |
-
1986
- 1986-04-30 JP JP1986065885U patent/JPH0533914Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54108061A (en) * | 1978-02-08 | 1979-08-24 | Seikei Chin | Separating device of material gateway in continuous material dryer |
| JPS6030345A (en) * | 1983-07-28 | 1985-02-15 | Mitsubishi Heavy Ind Ltd | Cooler for printing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62179589U (en) | 1987-11-14 |
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