JPS602364A - Damping arrangement of offset printer - Google Patents
Damping arrangement of offset printerInfo
- Publication number
- JPS602364A JPS602364A JP10935383A JP10935383A JPS602364A JP S602364 A JPS602364 A JP S602364A JP 10935383 A JP10935383 A JP 10935383A JP 10935383 A JP10935383 A JP 10935383A JP S602364 A JPS602364 A JP S602364A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- water
- speed
- transfer roller
- water film
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/20—Details
- B41F7/24—Damping devices
- B41F7/26—Damping devices using transfer rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はオフセット印刷機の湿し水装置に関するＯ
オフセット印刷機に於ける湿し水装置として、幾本かの
ローラを用いた連続給水方式が多く用いられており、そ
の代表的なものが第１図に示されている。同図において
、版面１に湿し水を供給する湿し水装置は湿し水を入れ
た水舟２、表面に柔かい弾性層例えばゴム層をもった水
元ローラ３、硬い表面例えばクロムメッキ表面をもった
転移ローラ４及び表面に柔かい弾性層をもった水着はロ
ーラ５を有し、各ローラは矢印で示す方向に、即ち各ロ
ーラ間の接触面が同方向に移動するように回転している
（以下、このような回転関係を正スリップと称す）。水
元ｐ−ラ３で水舟２からすくい上げられた湿し水は転移
ローラ４と水元ローラ３とのニップ部で絞られ、転移ロ
ーラ４上に薄い水膜を形成し、次いで水着はローラ５を
介して版面１に供給される。かかる湿し水装置において
重要なことは版面１上にいかにして所望の水膜を形成す
るかにある。版面１上の水膜厚さは主として水元ローラ
３と転移ローラ４との接触圧及び表面速度比（以下、ス
リップ比という）、転移ローラ４と水着はローラ５との
スリップ比、水着はローラ５と版面１とのスリップ比等
によって調整しうるが、これらを個々に調整することは
繁雑であるので、通常は水着はローラ５を版面１と同速
（スリップ比１）とし、かつ水元ｐ−ラ３と転移ローラ
４とのスリップ比を一定としておき、水元ローラ３と転
移四−ラ４との接圧を調整するか或は転移ローラ４と水
着はローラ５とのスリップ比を調整していた。ところが
この方法は近年の如く印刷機の高速化に伴い広範囲速度
での印刷が行われるようになると、次の欠点を生じた。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dampening water device for an offset printing machine. A continuous water supply system using several rollers is often used as a dampening water device for an offset printing machine. A typical example is shown in FIG. In the figure, the dampening device that supplies dampening water to the printing plate 1 includes a water bucket 2 containing dampening water, a water fountain roller 3 having a soft elastic layer, such as a rubber layer, on its surface, and a hard surface, such as a chrome-plated surface. The swimsuit has a transfer roller 4 having a transfer roller 4 and a roller 5 having a soft elastic layer on the surface, and each roller rotates in the direction shown by the arrow, that is, so that the contact surfaces between the rollers move in the same direction. (Hereinafter, such a rotational relationship will be referred to as a positive slip). The dampening water scooped up from the water boat 2 by the water source p-ra 3 is squeezed at the nip between the transfer roller 4 and the water source roller 3, forming a thin water film on the transfer roller 4, and then the swimsuit is placed on the roller. 5 to the printing plate 1. What is important in such a dampening water device is how to form a desired water film on the plate surface 1. The thickness of the water film on the plate surface 1 is mainly determined by the contact pressure and surface speed ratio (hereinafter referred to as slip ratio) between the water source roller 3 and the transfer roller 4, the slip ratio between the transfer roller 4 and the roller 5 for the swimsuit, and the slip ratio for the swimsuit and the roller 5. This can be adjusted by adjusting the slip ratio between the roller 5 and the plate 1, but it is complicated to adjust these individually.Usually, for swimsuits, the roller 5 is set at the same speed as the plate 1 (slip ratio 1), and the water source is Either keep the slip ratio between the p-ra 3 and the transfer roller 4 constant and adjust the contact pressure between the water base roller 3 and the transfer roller 4, or adjust the slip ratio between the transfer roller 4 and the swimsuit roller 5. I was adjusting. However, as printing presses have increased in speed in recent years and printing has become possible over a wide range of speeds, this method has had the following drawbacks.
即ち、ある印刷速度に対して版面上の水膜厚を所定値に
すべく転移ローラ４と水着はローラ５との間のスリップ
比を調整しておいても、印刷速度の変化に伴い、転移ロ
ーラの速度を如何なる直線的な追従をさせようとも水膜
厚が変動してしまうという欠点が生じた。この原因を検
討した結果、正スリップしている水元ローラ３と転移ロ
ーラ４との間を通過する水量はスリップ比が一定であっ
ても、速度が増加すると速度に比例する以上に増加し転
移ローラ４上に形成される水膜厚が速度の増加に伴い増
加するためであることが判明した。水は２本のローラの
ニップ部に巻き込まれると高い水圧を生じこれがゴム表
面にくぼみを生じさせて通過するが、このくぼみ量が速
度の増加によって増大するため、上記水膜厚の増加が生
じるものと思われる。That is, even if the slip ratio between the transfer roller 4 and the swimsuit roller 5 is adjusted so that the water film thickness on the printing plate is at a predetermined value for a certain printing speed, the transfer will change as the printing speed changes. A drawback has arisen in that the water film thickness varies no matter how linearly the speed of the roller is followed. As a result of examining the causes of this, we found that even if the slip ratio is constant, the amount of water passing between the water base roller 3 and the transfer roller 4, which are slipping in the normal direction, increases more than proportionally to the speed as the speed increases. It turns out that this is because the thickness of the water film formed on the roller 4 increases as the speed increases. When water is caught in the nip between two rollers, it generates high water pressure, which creates depressions on the rubber surface and passes through.As the amount of depressions increases as the speed increases, the water film thickness mentioned above increases. It seems to be.
このように高速域では転移ローラ４上に相当に厚い水膜
が形成され、これが水着はローラを介して版面に供給さ
れるものであるので、版面上の水膜厚が大きくなりすぎ
てしまうとか、転移ローラの微少な速度変化で供給水量
が大幅に変ってしまうとか、更には上記のニップ部で生
じた水膜厚のばらつきが増幅されて版面上に転移し、い
わゆる水筋目を生じる等の欠点が生じていた。In this way, in the high speed range, a fairly thick water film is formed on the transfer roller 4, and since the swimsuit is supplied to the printing plate via the roller, the water film on the printing plate becomes too thick. In addition, slight changes in the speed of the transfer roller can significantly change the amount of water supplied, and furthermore, the variation in water film thickness that occurs at the nip is amplified and transferred onto the plate surface, resulting in so-called water streaks. There were deficiencies.
また、湿し水装置として、第１図に示す正スリップを利
用するものの他、第２図に示すように、水元ローラ３と
転移ローラ４とを逆スリップ（接触面が互に反対方向に
動いている）させているものも知られている。この装置
では水元ｐ−ラ３に水切ローラ６を接触させて水元ロー
ラ３上の水膜を所定厚の薄膜とし、次いで、これを逆ス
リップしている転移ローラ４上に移すものである。逆ス
リップの場合には水元ローラ上の水膜のほとんどが転移
ローラ上に移るため転移ローラ上の水膜厚は逆スリップ
比に直線的に応答し、このため、逆スリップ比を変える
ことにより水膜厚を容易に調整することができる。従っ
て従来装置では逆スリップ比を可変に、即ち転移ローラ
４を水着ローラ５及び版面１と同一の表面速度とし、水
元ローラ３及び水切ローラ６を転移ローラ４に対し変速
可能となしていた。ところが、この場合にも水切ローラ
６を通り過ぎた水元ローラ上の水膜厚は速度の上昇とと
もに増加するため、印刷速度を上昇させると版面上の水
膜厚が増加し、これを防ぐには再度、水膜厚の調整が必
要となる。また、転移ローラの低速域では水元ローラの
速度変化が転移ローラ上の水膜厚に大きい影響を与え、
調整がかえってむつかしくなるという欠点も有していた
。In addition to the dampening device that uses the normal slip shown in Fig. 1, as shown in Fig. 2, the dampening water device uses a reverse slip (the contact surfaces are in opposite directions) with the dampening roller 3 and the transfer roller 4. It is also known what makes it move). In this device, a draining roller 6 is brought into contact with the water head roller 3 to form a water film on the water head roller 3 into a thin film of a predetermined thickness, and then this is transferred onto a transfer roller 4 that is slipping in reverse. . In the case of reverse slip, most of the water film on the water source roller transfers to the transfer roller, so the water film thickness on the transfer roller responds linearly to the reverse slip ratio. Therefore, by changing the reverse slip ratio, Water film thickness can be easily adjusted. Therefore, in the conventional apparatus, the reverse slip ratio was made variable, that is, the transfer roller 4 was made to have the same surface speed as the bathing roller 5 and the printing plate 1, and the speed of the water base roller 3 and draining roller 6 relative to the transfer roller 4 was variable. However, in this case as well, the thickness of the water film on the water base roller that has passed the draining roller 6 increases as the speed increases, so as the printing speed increases, the water film thickness on the plate surface increases, and there is no way to prevent this. It is necessary to adjust the water film thickness again. In addition, in the low speed range of the transfer roller, the speed change of the water head roller has a large effect on the water film thickness on the transfer roller.
It also has the disadvantage that adjustment is rather difficult.
本発明者はこのような従来技術の欠点を解決するため、
転移ローラ上の水膜厚を速度にかかわりなく一定に保つ
方法を鋭意検討した結果、水元ローラと転移ローラとの
間の逆スリップ比を成る値とすると転移ローラ上の水膜
厚が速度にかかわりなくほぼ一定になることを見出し、
本発明に到達した。In order to solve the drawbacks of such conventional technology, the present inventors
As a result of intensive study on a method to keep the water film thickness on the transfer roller constant regardless of the speed, we found that if the reverse slip ratio between the water base roller and the transfer roller is set to a value, the water film thickness on the transfer roller changes with the speed. We found that it remains almost constant regardless of
We have arrived at the present invention.
第３図、第４図は水元ローラと転移ローラとが正スリッ
プ及び逆スリップするさいの転移ローラ上の水膜厚の特
性を実測して得たグラフである。FIGS. 3 and 4 are graphs obtained by actually measuring the characteristics of the water film thickness on the transfer roller when the water base roller and the transfer roller are in forward slip and reverse slip.
ここで、スリップ比とは（転移ローラ表面速度）／（水
元ローラ表面速度）であり、正スリップ比１は相対速度
零を、逆スリップ比１は相対速度がローラ表面速度の２
倍を意味する。第３図から明らかなように２本のローラ
が正スリップする場合にはスリップ比にかかわらず転移
ｐ−ラ上の水膜厚は速度とともに増加している。次に、
第４図に見られるように、２本のｐ−ラが逆スリップす
る場合においても逆スリップ比が０．７５〜１．０の場
合には転移ローラ上の水膜厚は速度とともに増加してい
る。ところが、驚くべきことには、逆スリップ比が１．
５〜２．０の場合には転移ローラ上の水膜厚が速度の影
響をあまり受けず、はぼ一定となることが判明した。Here, the slip ratio is (transfer roller surface speed)/(water base roller surface speed), and a positive slip ratio of 1 means the relative speed is zero, and a reverse slip ratio of 1 means that the relative speed is 2 of the roller surface speed.
It means double. As is clear from FIG. 3, when the two rollers slip in the normal direction, the water film thickness on the transfer p-ra increases with speed, regardless of the slip ratio. next,
As seen in Figure 4, even when two p-ra slip in reverse, the thickness of the water film on the transfer roller increases with speed when the reverse slip ratio is between 0.75 and 1.0. There is. However, surprisingly, the reverse slip ratio was 1.
It has been found that when the speed is between 5 and 2.0, the water film thickness on the transfer roller is not significantly affected by the speed and remains almost constant.
本発明はこのような知見に基いてなされたもので１広速
度範囲において適量の湿し水を版面に供給しうる湿し水
装置を提供することを目的とする。The present invention has been made based on such knowledge, and an object of the present invention is to provide a dampening water device that can supply an appropriate amount of dampening water to a plate surface over a wide speed range.
本発明によれば、水舟内に一部を浸漬して回転するよう
配置された、表面に弾性層をもった水元ローラと、該水
元ローラに接触する、硬い表面をもった転移ローラと、
前記水舟と転移リーラとの間で前記水元ローラに接触す
る水切ｐ−ラとを有するオフセット印刷機の湿し水装置
において、前記水元ｐ−ラと転移ローラとは逆スリップ
するように互に駆動連結され、かつその表面速度比は約
１．５〜２．０の範囲内に定められており、前記転移ロ
ーラはオフセット印刷機の水着けり−ラ又はインキ着は
ローラと正スリップする関係に取付けられていることを
特徴とするオフセット印刷機の湿し水装置が提供される
。According to the present invention, there is provided a water base roller having an elastic layer on its surface, which is arranged to rotate while being partially immersed in a water boat, and a transfer roller having a hard surface, which is in contact with the water base roller. and,
In the dampening device of an offset printing press, which has a dampening roller that contacts the water head roller between the water boat and the transfer reel, the water head p-ra and the transfer roller are configured to reversely slip. The transfer rollers are drivingly connected to each other, and the surface speed ratio thereof is set within the range of about 1.5 to 2.0, and the transfer roller has a positive slip with the water applicator or ink applicator roller of the offset printing machine. A dampening device for an offset printing press is provided, characterized in that the dampening device is mounted in connection.
以下、第５図に示す本発明の詳細な説明する。Hereinafter, the present invention shown in FIG. 5 will be explained in detail.
本発明になる湿し水装置も第２図に示すものと同様に、
水舟２、水舟２内に一部を浸漬して回転するゴムローラ
で構成された水元ローラ３、水元ローラ３に接触する水
切ローラ６及びクロムメッキローラで構成された転移ロ
ーラ４を有しており、転移ローラ４はゴムローラで構成
された水着はローラ５を介して版面１に湿し水を供給す
るようになっている。しかしながら、第５図に示す本発
明の実施例では、水元ローラ３と転移ローラ４とが歯車
７．８．９によって駆動連結され、両者の逆スリップ比
は常に歯車７．８の歯数によって定まる値に固定されて
いる。これは第２図の従来装置において、水元ローラ３
の速度が転移ローラ４の速度に対して可変となっていた
ものとは顕著に相違する特徴である。歯車７．８によっ
て定まる逆スリップ比は約１．５〜２の間に選ばれてい
る。更に歯車７には可変速モータ１０が連結され、水元
ローラ３及び転移ローラ４を版面１及び水着はローラ５
とは別個に駆動する。可変速モータ１０は印刷機速度に
応答する制御装置（図示せず）で制御され、湿し水装置
の速度を印ＷＩＪ機速度に連動させる。The dampening water device according to the present invention is also similar to the one shown in FIG.
It has a water boat 2, a water base roller 3 consisting of a rubber roller that is partially immersed in the water boat 2 and rotates, a draining roller 6 that contacts the water base roller 3, and a transfer roller 4 consisting of a chrome plated roller. The transfer roller 4 is constructed of a rubber roller and is adapted to supply dampening water to the plate surface 1 via a roller 5. However, in the embodiment of the invention shown in FIG. 5, the head roller 3 and the transfer roller 4 are drivingly connected by a gear 7.8.9, and the reverse slip ratio between them is always determined by the number of teeth of the gear 7.8. It is fixed at a fixed value. This is because in the conventional device shown in Fig. 2, the water head roller 3
This feature is markedly different from that in which the speed of the transfer roller 4 was variable with respect to the speed of the transfer roller 4. The reverse slip ratio defined by gear 7.8 is chosen between approximately 1.5 and 2. Further, a variable speed motor 10 is connected to the gear 7, and the water base roller 3 and the transfer roller 4 are connected to the printing plate 1 and the swimsuit to the roller 5.
It is driven separately from the The variable speed motor 10 is controlled by a controller (not shown) that is responsive to press speed and links the speed of the dampening system to the print WIJ machine speed.
水切ローラ６は自由回転ローラで、水元ローラ３に接触
してつれ回りするようになっており、かつ公知の調圧装
置（図示せず）で水切ローラ３に押し付けられている。The draining roller 6 is a freely rotating roller that rotates in contact with the draining roller 3, and is pressed against the draining roller 3 by a known pressure regulating device (not shown).
次に、上記の構成になる湿し水装置による湿し水供給を
説明する。水元ローラ３上の水は水切ローラ６によって
適当な厚みの均一な水膜（第１水膜という）に形成され
水元ローラ３と転移ローラ４との接触点（逆スリップ点
）に行く。逆スリップ点において水元ローラ３上の水膜
は転移ローラ４上に移り第２水膜を形成する。第２水膜
の水の一部は次いで水着は四−ラ５を経て版面１に供給
される。ここで、水元ローラ３と水切ローラ６は正スリ
ップの関係にあるので、水元ローラ３上の第１水膜の厚
さは水元ローラの速度に応じて増加するが、水元ローラ
３と転移ローラとの逆スリップ比が約１．５〜２．０の
範囲内の成る値に固定されているので、転移ローラ４上
の第２水膜の厚さは速度にほとんど影響されずほぼ一定
に保たれる。Next, the dampening water supply by the dampening water device having the above structure will be explained. The water on the water base roller 3 is formed into a uniform water film (referred to as a first water film) with an appropriate thickness by the draining roller 6, and goes to the contact point (reverse slip point) between the water base roller 3 and the transfer roller 4. At the reverse slip point, the water film on the water base roller 3 moves onto the transfer roller 4 to form a second water film. A portion of the water in the second water film is then supplied to the printing plate 1 through the fourth roller 5. Here, since the water head roller 3 and the draining roller 6 are in a positive slip relationship, the thickness of the first water film on the water head roller 3 increases according to the speed of the water head roller, but the water head roller 3 Since the reverse slip ratio between the transfer roller 4 and the transfer roller 4 is fixed at a value within the range of approximately 1.5 to 2.0, the thickness of the second water film on the transfer roller 4 is almost unaffected by the speed and approximately remains constant.
この水膜厚は水元ローラ３と水切ローラ６のニップ圧で
ほぼ決定される。版面１上の水膜厚は転移ローラ４上の
第２水膜の厚さ及び転移ローラ４と水着りｐ−ラ５の正
スリップ比によって定まるものであるので、版面１の速
度を一定とし、可変速モータ１０により転移ローラ速度
を変えて正スリップ比を調整することにより版面上の水
膜厚の微妙な調整が可能である。特に、転移ローラ上の
第２水膜の厚さが高速域でも増加していないため、高速
域でも低速域と同様な水膜厚の微妙な調整が可能である
。版面１上の水膜厚が一度調整されると、その後印刷機
速度を変えても、転移ローラ４の速度が印刷機に追従し
て変化し、水着はローラと転移ｐ−ラ４との正スリップ
比が一定に保たれているので、版面１上の水膜厚もほぼ
一定に保たれる。かくして低高全域での適正温しか行わ
れる。The thickness of this water film is approximately determined by the nip pressure between the water source roller 3 and the draining roller 6. Since the thickness of the water film on the printing plate 1 is determined by the thickness of the second water film on the transfer roller 4 and the positive slip ratio between the transfer roller 4 and the swimsuit p-ra 5, the speed of the printing plate 1 is kept constant; By changing the speed of the transfer roller using the variable speed motor 10 and adjusting the positive slip ratio, the thickness of the water film on the printing plate can be finely adjusted. In particular, since the thickness of the second water film on the transfer roller does not increase even in the high speed range, the water film thickness can be finely adjusted in the same way as in the low speed range even in the high speed range. Once the water film thickness on the printing plate 1 is adjusted, even if the printing press speed is changed thereafter, the speed of the transfer roller 4 changes to follow the printing press, and the swimsuit is made to maintain the correct alignment between the roller and the transfer roller 4. Since the slip ratio is kept constant, the thickness of the water film on the printing plate 1 is also kept almost constant. In this way, only the proper temperature can be achieved in the low and high ranges.
なお、上記実施例では転移ローラ４上の水を水着はロー
ラ５を介して版面１に供給しているが、本発明はこれに
限定されず、転移リーラ４をインキ着はローラに接触さ
せ、これを介して版面に湿し水を供給してもよい。In the above embodiment, the water on the transfer roller 4 is supplied to the printing plate 1 via the roller 5, but the present invention is not limited to this, and the transfer reel 4 is brought into contact with the roller for ink deposition. Dampening water may be supplied to the printing plate via this.
以上の如く、本発明によれば水元リーラと転移ローラと
を約１．５〜２．０の範囲内の所定の逆スリップ比に固
定しているので、転移ローラ上の水膜厚が速度にかかわ
らずほぼ一定となり、このため高速域での微妙な水量調
整を可能にするとともに、従来装置において厚い水膜に
よって目立った水筋目を薄くすることができる。更に、
転移ｐ−テラ速度印刷機速度に追従させることにより、
広範囲速度において版面の水膜厚をほぼ一定に保ち、適
正湿しを可能にする。また、従来の逆スリップ方式では
低速になる程、水膜厚が水元ローラの微妙な速度変化の
影響をうけ調整がむつかしくなっていたが、本発明では
逆スリップ比が固定されているので、このような欠点も
生じない。As described above, according to the present invention, since the water base reeler and the transfer roller are fixed at a predetermined reverse slip ratio within the range of about 1.5 to 2.0, the water film thickness on the transfer roller is The amount of water remains almost constant regardless of the amount of water, which makes it possible to finely adjust the amount of water at high speeds, and also to thin out the water streaks that were noticeable due to the thick water film in conventional equipment. Furthermore,
By making the transition p-tera speed follow the printing press speed,
The water film thickness on the plate surface is kept almost constant over a wide range of speeds, allowing for proper dampening. In addition, with the conventional reverse slip method, the lower the speed, the more difficult it was to adjust the water film thickness as it was affected by subtle speed changes of the water head roller, but with the present invention, the reverse slip ratio is fixed. Such defects do not occur either.
第１図、第２図はそれぞれ従来の湿し水装置の概略図、
第３図は正スリップする転移ｐ−ラ上の水膜厚の特性を
示すグラフ、第４図は逆スリップする転移ローラ上の水
膜厚の特性を示すグラフ、第５図は本発明の一実施例の
概略図である。
１・・・版面 ２・・・水舟
３・−・水切ローラ ４・・・転移ローラ５・・・水着
はローラ ６・・・水切ローラγ、８．９・・・歯車
１ｏ・・・可変速モータ代理人 弁理士 乗 松 恭
三
Ｏ刀φの（イ）１の７ん
鮨移ローラ泉面り人（”）’＊）
第３図Figures 1 and 2 are schematic diagrams of conventional dampening water devices, respectively.
FIG. 3 is a graph showing the characteristics of the water film thickness on the transfer roller slipping in the forward direction, FIG. 4 is a graph showing the characteristics of the water film thickness on the transfer roller slipping in the reverse direction, and FIG. FIG. 2 is a schematic diagram of an example. 1... Print surface 2... Water boat 3... Draining roller 4... Transfer roller 5... Swimsuit roller 6... Draining roller γ, 8.9... Gear
1o... Variable speed motor agent Patent attorney Kyo Matsu
Three O swords φ (a) 1 no 7 sushi transfer roller Izumi face Rito (”)'*) Figure 3
Claims (1)
に弾性層をもった水元ローラと、該水元ローラに接触す
る、硬い表面をもった転移ローラと、前記水舟と転移ロ
ーラとの間で前記水元ローラに接触する水切ローラとを
有するオフセット印刷機の湿し水装置において、 前記水元ローラと転移ローラとは逆スリップ゛するよう
に互に駆動連結され、かつその表面速度比は約１．５〜
２．０の範囲内に定められており、前記転移ローラはオ
フセット印刷機の水着はローラ又はインキ着はローラと
正スリップする関係に取付けられていることを特徴とす
るオフセット印刷機の湿し水装置。[Claims] A water base roller with an elastic layer on its surface, which is arranged to rotate while being partially immersed in a water boat, and a transfer roller with a hard surface that comes into contact with the water base roller. and a dampening roller for an offset printing press that contacts the water head roller between the water boat and the transfer roller, wherein the water base roller and the transfer roller are mutually arranged so as to reversely slip. and whose surface velocity ratio is about 1.5 to
2.0, and the transfer roller is installed in a positive slip relationship with the roller or the ink roller of the offset printing press. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10935383A JPS602364A (en) | 1983-06-20 | 1983-06-20 | Damping arrangement of offset printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10935383A JPS602364A (en) | 1983-06-20 | 1983-06-20 | Damping arrangement of offset printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS602364A true JPS602364A (en) | 1985-01-08 |
Family
ID=14508068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10935383A Pending JPS602364A (en) | 1983-06-20 | 1983-06-20 | Damping arrangement of offset printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS602364A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02146028U (en) * | 1989-05-16 | 1990-12-11 | ||
| US6336403B1 (en) * | 2000-04-05 | 2002-01-08 | Townsend Industries, Inc. | Dampening system for printing machines |
| KR200455366Y1 (en) * | 2008-09-26 | 2011-09-02 | 표수용 | Printing equipment |
| JP2014177136A (en) * | 2014-06-18 | 2014-09-25 | Komori Corp | Rolled paper printer |
| US9931831B2 (en) | 2010-04-06 | 2018-04-03 | Komori Corporation | Web printing press |
-
1983
- 1983-06-20 JP JP10935383A patent/JPS602364A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02146028U (en) * | 1989-05-16 | 1990-12-11 | ||
| US6336403B1 (en) * | 2000-04-05 | 2002-01-08 | Townsend Industries, Inc. | Dampening system for printing machines |
| KR200455366Y1 (en) * | 2008-09-26 | 2011-09-02 | 표수용 | Printing equipment |
| US9931831B2 (en) | 2010-04-06 | 2018-04-03 | Komori Corporation | Web printing press |
| JP2014177136A (en) * | 2014-06-18 | 2014-09-25 | Komori Corp | Rolled paper printer |
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