JPH0436920Y2 - - Google Patents
Info
- Publication number
- JPH0436920Y2 JPH0436920Y2 JP1981072721U JP7272181U JPH0436920Y2 JP H0436920 Y2 JPH0436920 Y2 JP H0436920Y2 JP 1981072721 U JP1981072721 U JP 1981072721U JP 7272181 U JP7272181 U JP 7272181U JP H0436920 Y2 JPH0436920 Y2 JP H0436920Y2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- paper
- cylinder
- circumferential speed
- drying device
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000037303 wrinkles Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【考案の詳細な説明】
本考案は、オフセツト輪転機や紙の塗工機であ
るコータマシンなどにおいて被処理紙に派生する
テンシヨンムラをなくすようにしたテンシヨンム
ラ防止機構に関するものである。[Detailed Description of the Invention] The present invention relates to a tension unevenness prevention mechanism that eliminates tension unevenness that occurs in treated paper in offset rotary presses, coater machines that are paper coating machines, and the like.
オフセツト輪転機においては従来両面印刷した
印刷紙を乾燥装置で乾燥すると火じわが発生して
いた。それは、輪転機の印刷ユニツト部における
湿し水で膨潤した印刷紙はテンシヨンをかけられ
て乾燥装置に入るため印刷紙に生じたしわが乾燥
し固定化してこれが火じわになると考えられる。 Conventionally, in offset rotary presses, when double-sided printed paper is dried in a drying device, wrinkles occur. This is because the printed paper swollen with dampening water in the printing unit of the rotary press is put under tension and enters the drying device, so the wrinkles that appear on the printed paper dry and become fixed, resulting in wrinkles.
本考案は、上記した乾燥装置の下流側に配設さ
れた複数の冷却シリンダからなる冷却装置におけ
る上記一つの被処理紙の冷却装置を構成する冷却
シリンダの内最上流側の冷却シリンダの周速を他
の冷却シリンダの周速より遅くして上記印刷紙で
ある被処理紙の紙幅方向のテンシヨンムラをなく
すようにして従来発生していた不具合を未然に解
消したテンシヨンムラ防止機構を提供しようとす
るものである。 The present invention is directed to the circumferential speed of the most upstream cooling cylinder of the cooling cylinders constituting the one processing paper cooling device in a cooling device consisting of a plurality of cooling cylinders disposed downstream of the drying device. To provide a mechanism for preventing tension unevenness, which eliminates the problems that conventionally occur by reducing the circumferential speed of the other cooling cylinders to eliminate tension unevenness in the paper width direction of the paper to be processed, which is the printing paper. It is.
以下本考案を最も好しい実施例としてオフセツ
ト輪転機に適用した図示実施例について説明す
る。 An illustrated embodiment in which the present invention is applied to an offset rotary press as the most preferred embodiment will be described below.
添付図面はオフセツト輪転機の構成を示すもの
で、給紙部１，４組の印刷ユニツト２，乾燥装置
３、冷却装置４及び折機５からなり上記冷却装置
４には第１冷却シリンダ７，第２冷却シリンダ８
及び第３冷却シリンダ９が印刷紙６の流れ方向に
沿つて配設されており、それらの各冷却シリンダ
は図示していない歯車で互に駆動連結されてい
る。 The attached drawing shows the configuration of an offset rotary press, which includes a paper feeding section 1, four printing units 2, a drying device 3, a cooling device 4, and a folding machine 5. The cooling device 4 includes a first cooling cylinder 7, Second cooling cylinder 8
and a third cooling cylinder 9 are arranged along the flow direction of the printing paper 6, and these cooling cylinders are drivingly connected to each other by gears (not shown).
そして、上記第１冷却シリンダ７の周速は第２
冷却シリンダ８及び第３冷却シリンダ９の周速よ
り遅くなるようにしてある。 The circumferential speed of the first cooling cylinder 7 is the second
It is designed to be slower than the circumferential speeds of the cooling cylinder 8 and the third cooling cylinder 9.
従つて、乾燥装置３を経て冷却装置４に入る印
刷紙６は、第２冷却シリンダ８で引張られる。そ
のとき印刷紙６の幅方向にテンシヨンムラがあつ
た場合にはテンシヨンの高い部分は第１冷却シリ
ンダ７のシリンダ表面に強く接するが同シリンダ
７の周速が若干遅いためブレーキ作用となり乾燥
装置３内の印刷紙６のテンシヨンの高い部分がこ
れにより弱められ、均一なテンシヨンとなる。 The printing paper 6 entering the cooling device 4 via the drying device 3 is thus pulled in the second cooling cylinder 8 . At this time, if there is uneven tension in the width direction of the printing paper 6, the high tension part will strongly contact the cylinder surface of the first cooling cylinder 7, but since the circumferential speed of the cylinder 7 is slightly slow, this will act as a brake and cause the inside of the drying device 3. This weakens the high tension portions of the printing paper 6, resulting in a uniform tension.
このように本実施例においては、乾燥装置３を
通る印刷紙６のテンシヨンを均一にすることによ
り、しわの発生がなくなり、印刷紙の品質を向上
させることができる。 As described above, in this embodiment, by making the tension of the printing paper 6 that passes through the drying device 3 uniform, the generation of wrinkles can be eliminated and the quality of the printing paper can be improved.
なお、本実施例においては、第１冷却シリンダ
７の周速を他の冷却シリンダ８，９の周速より若
干遅くさせるようにしているが、その手段として
上記第１冷却シリンダ７の回転数を下げたり、或
いは同シリンダ７の直径を小さくするようにして
もよく、又、上記シリンダ７に入る冷却水温度を
他の冷却シリンダ内温度より低くし、冷却による
収縮により直経を小さくさせてもよい。さらに
又、上記第１冷却シリンダ７を駆動せず印刷紙と
の摩擦により回転させ印刷紙と冷却シリンダ表面
とをすべらせるようにしてもよい。 In this embodiment, the circumferential speed of the first cooling cylinder 7 is made to be slightly slower than the circumferential speeds of the other cooling cylinders 8 and 9. The diameter of the cylinder 7 may be lowered or the diameter of the cylinder 7 may be made smaller.Also, the temperature of the cooling water entering the cylinder 7 may be lower than the temperature inside other cooling cylinders, and the direct diameter may be made smaller due to contraction due to cooling. good. Furthermore, the first cooling cylinder 7 may not be driven but may be rotated by friction with the printing paper so that the printing paper and the surface of the cooling cylinder slide.
図面は本考案の一実施例を示す概略側面図であ
る。
１……給紙部、２，２……印刷ユニツト、３…
…乾燥装置、４……冷却装置、６……印刷紙、
７，８，９……冷却シリンダ。
The drawing is a schematic side view showing an embodiment of the present invention. 1... Paper feed section, 2, 2... Printing unit, 3...
...Drying device, 4...Cooling device, 6...Printing paper,
7, 8, 9...Cooling cylinder.
Claims (1)
被処理紙を乾燥する乾燥装置の下流側に配置され
るとともに前記被処理紙が係合する並設された複
数の冷却シリンダからなる冷却装置において、前
記一つの被処理紙に係合する最上流側の冷却シリ
ンダの周速を他の冷却シリンダの周速より遅くし
たことを特徴とするテンシヨンムラ防止装置。 A cooling device that is disposed downstream of a drying device such as a rotary press or a coater machine that dries a single processed paper, and is composed of a plurality of parallel cooling cylinders that are engaged with the processed paper, A tension unevenness prevention device characterized in that the circumferential speed of the cooling cylinder on the most upstream side that engages with the one paper to be processed is slower than the circumferential speed of the other cooling cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981072721U JPH0436920Y2 (en) | 1981-05-20 | 1981-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981072721U JPH0436920Y2 (en) | 1981-05-20 | 1981-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57185544U JPS57185544U (en) | 1982-11-25 |
| JPH0436920Y2 true JPH0436920Y2 (en) | 1992-08-31 |
Family
ID=29868502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981072721U Expired JPH0436920Y2 (en) | 1981-05-20 | 1981-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0436920Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157822U (en) * | 1983-04-08 | 1984-10-23 | 宮腰機械製作株式会社 | Post-processing equipment for rotary printing presses |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649290A (en) * | 1979-09-27 | 1981-05-02 | Seiko Epson Corp | Typewriter |
| JPS5731070U (en) * | 1980-07-25 | 1982-02-18 | ||
| JPS5769050A (en) * | 1980-10-16 | 1982-04-27 | Toshiba Mach Co Ltd | Speed change gear for cooling device of offset press |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54177930U (en) * | 1978-06-02 | 1979-12-15 |
-
1981
- 1981-05-20 JP JP1981072721U patent/JPH0436920Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649290A (en) * | 1979-09-27 | 1981-05-02 | Seiko Epson Corp | Typewriter |
| JPS5731070U (en) * | 1980-07-25 | 1982-02-18 | ||
| JPS5769050A (en) * | 1980-10-16 | 1982-04-27 | Toshiba Mach Co Ltd | Speed change gear for cooling device of offset press |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57185544U (en) | 1982-11-25 |
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