JPH03253343A - Printer - Google Patents

Abstract

PURPOSE:To enable a single surface simultaneous printing, both surfaces printing, and multi-colored printing to be performed even by using a small number of parts and to enable printing time to be reduced for a small lot of printing by a method wherein a transfer means capable of feeding a sheet material sent to a first delivery means again to an impression cylinder before printing a second ink transfer means is established to at least either of the first delivery means or a second paper feed means. CONSTITUTION:In the case where a single surface printing is performed for different content prints, a sheet material is stored respectively in a first paper feeder 9 and a second paper feeder 12 without operating a transfer means 11c, and paper is fed to an impression cylinder 2 from the first and second paper feedets. Printings of which contents are different are simultaneously printed by making a plate of a first ink transfer means 3 different from a plate of a second ink transfer means 4. Further, in the case of both surfaces printing, by sending the sheet material sent to a first delivery means again to the impression cylinder without changing its front and rear condition by operating transfer means, a turned inside out sheet material of which a single surface has been printed is fixed to the impression cylinder. Then, ink is transferred to a rear surface side of the said sheet material by the second ink transfer means 4 following pivoting of the impression cylinder, and both front and rear surfaces are printed.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は輪転式の印刷装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a rotary printing device.

（従来の技術） 従来、両面印刷可能な輪転式の印刷装置には、印刷用紙
を固定する圧胴と、圧胴に印刷用紙を給紙する給紙手段
と、圧胴と共働して圧胴に固定された印刷用紙を挟圧す
ることにより圧胴上の印刷用紙にインクの転移を行なう
ブランケット胴と、印刷された圧胴上の印刷用紙をくわ
え替えて印刷用紙を積層する排紙装置と、排紙装置と圧
胴との間に配設されて圧胴の印刷用紙をくわえ替えるく
わえ替え胴と、くわえ替え胴近傍に配設されてくわえ替
え胴から印刷用紙を受け取って反転させた後に再びくわ
え替え胴に印刷用紙を戻す反転装置とを備えたものが知
られている。(Prior Art) Conventionally, a rotary printing device capable of double-sided printing has an impression cylinder that fixes printing paper, a paper feeding means that feeds the printing paper to the impression cylinder, and a press that works together with the impression cylinder. A blanket cylinder that transfers ink to the printing paper on the impression cylinder by pinching the printing paper fixed to the cylinder, and a paper discharge device that stacks the printing paper by changing the printed paper on the impression cylinder. , a gripping cylinder that is disposed between the paper ejecting device and the impression cylinder and re-grips the printing paper on the impression cylinder, and a gripping cylinder that is disposed near the gripping changing cylinder that receives the printing paper from the gripping cylinder and reverses it. Some devices are known that are equipped with a reversing device for returning the printing paper to the gripping cylinder again.

この印刷装置で印刷用紙の片面印刷を行なう場合には、
くわえ替え胴及び反転装置を作動させず、圧胴の印刷用
紙を直接排紙装置に排紙するようになっており、両面印
刷を行なう場合には、くわえ替え胴と反転装置とを圧胴
に同期させてくわえ替え胴及び反転装置を作動させ、圧
胴からくわえ替え胴に片面印刷済みの印刷用紙を移転さ
せ、更に、くわえ替え胴から反転装置に片面印刷済みの
印刷用紙を移転させ、反転装置で片面印刷済みの印刷用
紙を反転させて再びくわえ替え胴に移転させ、更に、く
わえ替え胴から再び圧胴に移転して裏面側の印刷を行な
った後に排紙装置に排紙するようになっている。When printing on one side of printing paper with this printing device,
The printing paper on the impression cylinder is directly ejected to the paper output device without operating the gripping cylinder and the reversing device.When performing double-sided printing, the gripping cylinder and reversing device are not operated on the impression cylinder. The gripping cylinder and the reversing device are operated in synchronization to transfer the printed paper on one side from the impression cylinder to the gripping cylinder, and then transfer the printed sheet on one side from the gripping cylinder to the reversing device, where it is reversed. The printing paper that has already been printed on one side is reversed in the device and transferred to the gripping cylinder again, and then transferred from the gripping cylinder to the impression cylinder again, and after printing on the back side, it is discharged to the paper delivery device. It has become.

（発明が解決しようとする課題） しかしながら、従来の印刷装置によって印刷用紙の両面
印刷を行なう場合は、圧胴からくわえ替え胴への印刷用
紙のくわえ替え動作と反転装置での印刷用紙の反転動作
とによって印刷用紙のくわえ替えを行なうために、片面
多色印刷時よりも圧胴の回転スピードを落とさざるを得
ず、両面印刷に時間がかかる問題があると共に、内容の
異なる印刷物の同時印刷ができないために、小ロツト印
刷を短時間で行なう二とが出来ないという問題があった
。(Problem to be Solved by the Invention) However, when performing double-sided printing on printing paper using a conventional printing device, the gripping operation of the printing paper from the impression cylinder to the gripping cylinder and the reversing operation of the printing paper with the reversing device are required. In order to change the grip of the printing paper depending on the situation, the rotation speed of the impression cylinder has to be lowered than in single-sided multi-color printing, which poses the problem of taking time to print on both sides, and the simultaneous printing of different types of printed matter. Therefore, there was a problem in that it was not possible to print small lots in a short time.

（課題を解決するための手段） 上記課題を解決するために、本発明にかかる印刷装置は
、 シート体を固定する爪部の開閉時期を回動角度に応じて
調整可能な圧胴の近傍に、圧胴上のシート体にインクを
転移する第１、第２のインク転移手段を対向配設し、こ
の第１のインク転移手段から第２のインク転移手段まで
の前記圧胴の回動領域に、前記圧胴からシート体を受け
取る第１の排紙手段を配設し、前記第２のインク転移手
段から第１のインク転移手段までの前記圧胴の回動領域
に、前記圧胴にシート体を供給する第１の給紙手段を配
設し、前記第１の排紙手段に前記シート体を受け渡す位
置から前記第２のインク転移手段までの前記圧胴の回動
領域に、前記圧胴に新たなシート体を給紙可能な第２の
給紙手段を配設し、前記第１の排紙手段と第２の給紙手
段との少なくとも何れかに、前記第１の排紙手段に送ら
れてきた前記シート体を前記第２のインク転移手段の印
刷前に再び前記圧胴に給紙可能な移送手段を設け、前記
第２のインク転移手段から前記第１の給紙手段までの前
記圧胴の回動領域に、前記圧胴から前記シート体を受け
取る第２の排紙手段を配設したことを特徴とする。(Means for Solving the Problems) In order to solve the above problems, the printing apparatus according to the present invention has a structure in which the opening/closing timing of the claw portion for fixing the sheet body is located near the impression cylinder, which can adjust the opening/closing timing according to the rotation angle. , first and second ink transfer means for transferring ink to the sheet body on the impression cylinder are disposed opposite each other, and a rotation area of the impression cylinder from the first ink transfer means to the second ink transfer means; a first sheet discharging means for receiving a sheet from the impression cylinder; and a first sheet discharging means for receiving a sheet from the impression cylinder; A first paper feeding means for supplying a sheet body is disposed in a rotating region of the impression cylinder from a position where the sheet body is delivered to the first paper discharge means to the second ink transfer means, A second sheet feeding means capable of feeding a new sheet body to the impression cylinder is disposed, and the first sheet discharging means is connected to at least one of the first sheet discharging means and the second sheet feeding means. A conveyance means capable of feeding the sheet body sent to the paper means to the impression cylinder again before printing by the second ink transfer means is provided, and the sheet body is fed from the second ink transfer means to the first sheet feeding means. A second sheet discharge means for receiving the sheet from the impression cylinder is disposed in a rotating region of the impression cylinder up to the means.

（作　用） 本発明にかかる印刷装置によれば、第１の給紙手段から
供給されたシート体は圧胴の爪部に固定されて第１のイ
ンク転移手段により片面が印刷される。(Function) According to the printing apparatus according to the present invention, the sheet supplied from the first paper feeding means is fixed to the claw portion of the impression cylinder, and one side of the sheet is printed by the first ink transfer means.

片面印刷済みのシート体は圧胴から第１の排紙手段に排
紙される。又、第２の給紙手段から圧胴に給紙されたシ
ート体は第２のインク転移手段により片面を印刷された
後に圧胴から第２の排紙手段に排紙される。The single-sided printed sheet is discharged from the impression cylinder to the first paper discharge means. Further, the sheet fed from the second paper feeding means to the impression cylinder is printed on one side by the second ink transfer means and then discharged from the impression cylinder to the second paper discharging means.

従って、内容の異なる印刷物を片面印刷する場合には、
移送手段を作動させずに、第１の給紙装置と第２の給紙
装置にそれぞれシート体を収納して第１、第２の給紙装
置から圧胴にシート体を給紙し、第１のインク転移手段
と第２のインク転移手段の版を異ならせることにより、
内容の異なる印刷を同時に印刷することが出来る。Therefore, when printing printed matter with different contents on one side,
Without operating the transport means, the sheet bodies are stored in the first paper feeding device and the second paper feeding device respectively, and the sheet bodies are fed from the first and second paper feeding devices to the impression cylinder, and the sheet bodies are fed to the impression cylinder from the first and second paper feeding devices. By making the plates of the first ink transfer means and the second ink transfer means different,
It is possible to print different contents at the same time.

又、両面印刷の場合には、移送手段を作動させて、第１
の排紙手段に送られてきたシート体をその表裏状態を変
更することなく再度圧胴に送ることにより、圧胴に裏返
しになった片面印刷済みのシート体が固定される。そし
て、圧胴の回動にともない第２のインク転移手段により
そのシート体の裏面側にインクの転移が行なわれ、シー
ト体の表裏両面に印刷がなされる。両面印刷済みのシー
ト体は圧胴の回動にともない第２の排紙手段に排紙され
る。In addition, in the case of double-sided printing, the first
By sending the sheet sent to the sheet discharging means to the impression cylinder again without changing its front and back state, the sheet that has been turned over and printed on one side is fixed to the impression cylinder. Then, as the impression cylinder rotates, the second ink transfer means transfers ink to the back side of the sheet body, and printing is performed on both the front and back sides of the sheet body. The double-sided printed sheet is discharged to the second paper discharge means as the impression cylinder rotates.

更に、片面多色刷り印刷の場合には、第１の排紙手段と
第２の給紙手段及び移送手段を作動させず、更に圧胴の
爪部を第２の排紙手段の直前まで閉じた状態で圧胴を回
転させることにより、第１のインク転移手段で片面印刷
されたシート体に第２のインク転移手段のインク転移が
行なわれるために、片面多色刷り印刷が可能となる。第
２のインク転移手段により多色刷り印刷されたシート体
は第２の排紙手段に排紙される。Furthermore, in the case of single-sided multicolor printing, the first sheet discharging means, the second sheet feeding means, and the conveying means are not operated, and the claw portion of the impression cylinder is closed just before the second sheet discharging means. By rotating the impression cylinder in this state, the second ink transfer means transfers ink to the sheet material that has been printed on one side by the first ink transfer means, thereby making it possible to perform single-sided multicolor printing. The sheet body printed in multiple colors by the second ink transfer means is discharged to the second paper discharge means.

（実施例） 以下、本発明の実施例にかかる印刷装置を図面に基づい
て説明する。(Example) Hereinafter, a printing apparatus according to an example of the present invention will be described based on the drawings.

第１図は、本実施例にかかる輪転式オフセット印刷手段
を示したもので、このオフセット印刷手段１は、圧Ｗ４
２を間において対向する一対のインク転移手段３．４を
備えている。インク転移手段４の構成はインク転移手段
３の構成と同様であるのでインク転移手段３の説明を援
用する。FIG. 1 shows a rotary type offset printing means according to this embodiment, and this offset printing means 1 has a pressure of W4.
A pair of ink transfer means 3.4 are provided which face each other with 2 in between. Since the configuration of the ink transfer means 4 is similar to that of the ink transfer means 3, the description of the ink transfer means 3 will be referred to.

インク転移手段３は、版胴部５とブランケット胴部６と
を備えている。版胴部５は図示しない給版台から供給さ
れたシート状の版をくわえて固定出来るようになってお
り、版胴本体５ａの回転に伴って給水手段７から湿し水
を受け、更に、インキング手段８からインクを受けるよ
うになっている。版胴部５には図示しない排版手段が設
けられ、版胴本体５ａから印刷の終わった版は排版手段
の排版トレイに回収される。ブランケット胴部６には、
ブランケット胴本体６ａと洗浄手段（図示省略）が設け
られており、洗浄手段によってブランケット胴本体６ａ
を洗浄するようになっている。The ink transfer means 3 includes a plate cylinder 5 and a blanket cylinder 6. The plate cylinder 5 is configured to hold and fix a sheet-like plate supplied from a plate feeding table (not shown), and receives dampening water from the water supply means 7 as the plate cylinder main body 5a rotates. It receives ink from the inking means 8. The plate cylinder 5 is provided with a plate discharge means (not shown), and the printed plate is collected from the plate cylinder main body 5a into a plate discharge tray of the plate discharge means. In the blanket body 6,
A blanket cylinder body 6a and cleaning means (not shown) are provided, and the cleaning means cleans the blanket cylinder body 6a.
It is supposed to be washed.

圧１ｉｉ２の近傍には、圧胴２に向かって新しい印刷用
紙１０（シート体）を給紙する第１の給紙手段９と、片
面印刷済みの印刷用紙１０を圧１１１ｉ２から排紙する
第１の排紙手段１１と、第２のインク転移手段４でイン
クの転移を行なうために圧胴２に印刷用紙ｌＯを給紙可
能な第２の給紙手段１２と、第２のインク転移手段４で
印刷された印刷用紙ｌＯを圧胴２から取り出す第２の排
紙手段１３とが配設されている。Near the press 1ii2, there is a first paper feeding means 9 for feeding a new printing paper 10 (sheet body) toward the impression cylinder 2, and a first paper feeding means 9 for discharging the printing paper 10 already printed on one side from the press 111i2. a second paper feed means 12 capable of feeding printing paper lO to the impression cylinder 2 for ink transfer by the second ink transfer means 4; and a second ink transfer means 4. A second paper discharge means 13 is provided for taking out the printed paper lO from the impression cylinder 2.

第１の給紙手段９は、第１のインク転移手段３のブラン
ケット胴本体６ａによって片面印刷を行なうために、第
１のインク転移手段３の近傍に配設されている。第１の
給紙手段９は印刷用紙１０を積層するマガジン９ａと、
印刷用紙１０をマガジン９ａから取り出す吸着手段９ｂ
と、吸着手段９ｂからの印刷用紙１０をスライドするガ
イド部材９Ｃと、ガイド部材９Ｃの前端部に配設された
係止爪９Ｃとを有し、ガイド部材９ｃによって送られて
きた印刷用紙１０を圧胴２の前で一時的に停止させるよ
うになっている。係止爪９ｄは圧ｌ１１２の爪部２ａ、
　２ｂの接近にともなって回動するようになっており、
ガイド部材９ｃ上の印刷用紙１０の前端部の揃え並びに
位置合わせと、印刷用紙１０を圧胴に送るときのタイミ
ング調整を行っている。The first paper feeding means 9 is disposed near the first ink transfer means 3 in order to perform single-sided printing using the blanket cylinder body 6a of the first ink transfer means 3. The first paper feeding means 9 includes a magazine 9a that stacks printing paper 10;
Suction means 9b for taking out printing paper 10 from magazine 9a
, a guide member 9C that slides the printing paper 10 from the suction means 9b, and a locking claw 9C disposed at the front end of the guide member 9C, and a guide member 9C that slides the printing paper 10 sent by the guide member 9c. It is designed to temporarily stop in front of the impression cylinder 2. The locking claw 9d is the claw portion 2a of the pressure l112,
It is designed to rotate as 2b approaches,
The front end of the printing paper 10 on the guide member 9c is aligned and positioned, and the timing when the printing paper 10 is sent to the impression cylinder is adjusted.

マガジン９ａはオフセット印刷手段１から取り外しが出
来るように装着されている。The magazine 9a is removably attached to the offset printing means 1.

第１の排紙手段１１は、第１のインク転移手段３のブラ
ンケット胴本体６ａによって片面印刷された印刷用紙１
０ａを圧１ｉ１２から取り外すもので、圧胴２の近傍に
配設されるくわえ替え胴１１ａと、くわえ替え胴１１ａ
から印刷用紙１０ａを受け取って移送するデリバリ−チ
ェーンｌｌｂと、デリバリ−チェーンｌｌｂから移送さ
れた印刷用紙１０ａを積層可能なマガジンｌｌｃとを有
している。デリバリ−チェーンｌｌｂの上方には印刷用
紙１０のインクを乾燥させるための乾燥手段（図示省略
）が設けられている。The first paper ejecting means 11 carries a printing paper 1 printed on one side by the blanket cylinder main body 6a of the first ink transfer means 3.
0a from the pressure 1i12, and the gripping cylinder 11a disposed near the impression cylinder 2 and the gripping cylinder 11a.
It has a delivery chain Ilb that receives and transfers the printing paper 10a from the delivery chain Ilb, and a magazine Ilc that can stack the printing paper 10a transferred from the delivery chain Ilb. A drying means (not shown) for drying the ink on the printing paper 10 is provided above the delivery chain llb.

本実施例では、マガジンｌｌｃは、本発明の移送手段を
構成しており、図示しない駆動装置により第２の給紙手
段１２に向かって上下動可能に設けられ、両面印刷の場
合、マガジンｌｌｃに所定の枚数の印刷用紙１０ａが積
層されると、マガジンｌｌｃが第２の給紙手段１２のマ
ガジン１２ａ側に下降して第２のインク転移手段４側に
回動する爪部２ａ、　２ｂに向かって印刷用紙１０ａを
給紙するようになっている。マガジン１１Ｃを上下動さ
せる機構は、゛例えばマガジンｌｌｃとオフセット印刷
装置１の筐体にリンク機構やギア機構などとガイド機構
を設けることによって構成される。In this embodiment, the magazine llc constitutes the transport means of the present invention, and is provided so as to be movable up and down toward the second paper feeding means 12 by a drive device (not shown). When a predetermined number of sheets of printing paper 10a are stacked, the magazine llc descends to the magazine 12a side of the second paper feeding means 12 and moves toward the claws 2a and 2b which rotate toward the second ink transfer means 4 side. The printing paper 10a is fed by using the printing paper 10a. The mechanism for vertically moving the magazine 11C is constructed by providing a link mechanism, a gear mechanism, etc., and a guide mechanism in the housings of the magazine llc and the offset printing apparatus 1, for example.

尚、マガジンｌｌｃはオフセット印刷装置１から着脱自
在に装着されている。Incidentally, the magazine llc is detachably attached to the offset printing apparatus 1.

第２の給紙手段１２は、第２のインク転移手段４による
印刷を行なうために圧ｗ４２に印刷用紙１０”を給紙す
るもので、第１の排紙手段１１のマガジンｌｌｃの下方
に配設されてオフセット印刷装置１から着脱自在のマガ
ジン１２ａと、マガジン１２ａ内の印刷用紙１０を吸着
する吸着手段１２ｂと、圧胴２の爪部２ｂに向かって印
刷用紙１０を移送するデリバリ−チェーン１２ｃと、デ
リバリ−チェーン１２ｃ上の印刷用紙１０を圧Ｗ１２の
爪部２ｂにくわえ替えするときに印刷用紙ｌＯ”を−時
停止させる係止爪１２ｄとを有している。The second paper feeding means 12 feeds printing paper 10'' to the pressure w42 for printing by the second ink transfer means 4, and is disposed below the magazine llc of the first paper ejection means 11. A magazine 12a is provided and is detachable from the offset printing apparatus 1, a suction means 12b that suctions the printing paper 10 in the magazine 12a, and a delivery chain 12c that transports the printing paper 10 toward the claw portion 2b of the impression cylinder 2. and a locking claw 12d that stops the printing paper lO'' when the printing paper 10 on the delivery chain 12c is gripped by the claw portion 2b of the pressure W12.

第２の排紙手段１３は、第２のインク転移手段４にて印
刷された印刷用紙１０１　を積層するもので、圧胴２か
ら印刷済みの印刷用紙１０ａ’　をくわえ替えるくわえ
替え胴１３ａと、くわえ替え胴１３ａからの印刷用紙１
０ａ’　を受け取って移送するデリバリ−チェーン１３
ｂと、デリバリ−チェーン１３ｂから移送されてくる印
刷用紙１０゛　を積層するマガジン１３ｃとを備えてお
り、デリバリ−チェーン１３ｂの上方には印刷用紙１０
１のインクを乾燥させる図示しない乾燥手段が設けられ
ている。マガジン１３ｃはオフセット印刷装置１から取
り外すことが出来るようになっている。The second paper discharge means 13 is for stacking the printing paper 101 printed by the second ink transfer means 4, and includes a gripping cylinder 13a for changing the grip of the printed printing paper 10a' from the impression cylinder 2; Printing paper 1 from gripping cylinder 13a
Delivery chain 13 that receives and transports 0a'
b, and a magazine 13c for stacking the printing paper 10' transferred from the delivery chain 13b, and above the delivery chain 13b, the printing paper 10' is stacked.
A drying means (not shown) for drying the first ink is provided. The magazine 13c can be removed from the offset printing device 1.

次に本実施例にかかるオフセット印刷装置１の動作につ
いて説明する。Next, the operation of the offset printing apparatus 1 according to this embodiment will be explained.

先ず、片面印刷のみを行なう場合には、圧胴２及びイン
ク転移手段３．４を駆動し、第１の給紙手段９から圧胴
２に向けて新しい印刷用紙１０を給紙し、第２の給紙手
段１２から圧胴２に向けて印刷用紙１０′をそれぞれ供
給する。圧胴２の爪部２ａが係止爪９ｄの近傍に接近し
たら、爪部２ａと係止爪９ｄの開閉が行なわれて印刷用
紙１０が圧胴２にくわえ替えられる。このとき、第２の
給紙手段１２からも圧胴２に向かって印刷用紙１０゛　
が供給され、係止爪１２ｄと圧胴２の爪部２ｂとの間で
印刷用紙１０’　のくわえ替えが行なわれ、圧胴２の爪
部２ｂに印刷用紙１０”が固定される。圧胴２に固定さ
れた印刷用紙１０．　１０’　がインク転移手段３．４
により印刷されたら、インク転移手段３で印刷された印
刷用紙１０は第１の排紙手段１１に排紙され、インク転
移手段４で印刷され多印刷用紙１０”は第２の排紙手段
１３に排紙され、マガジンｌｉｅ及びマガジン１３ｃに
片面印刷済みの印刷用紙１０ａ’　、　１０ａ’が積層
される。従って、内容の異なる片面印刷を行なう場合に
は、インク転移手段３．４のそれぞれの版胴部５を変え
て行なうことにより、異なる印刷を同時に行なうことが
出来る。First, when performing only one-sided printing, the impression cylinder 2 and the ink transfer means 3.4 are driven, a new printing paper 10 is fed from the first paper feeding means 9 toward the impression cylinder 2, and the second The printing paper 10' is supplied from the paper feeding means 12 toward the impression cylinder 2, respectively. When the claw portion 2a of the impression cylinder 2 comes close to the locking claw 9d, the claw portion 2a and the locking claw 9d are opened and closed, and the printing paper 10 is gripped onto the impression cylinder 2. At this time, the printing paper 10 is also fed from the second paper feeding means 12 toward the impression cylinder 2.
is supplied, the printing paper 10' is gripped between the locking claw 12d and the claw portion 2b of the impression cylinder 2, and the printing paper 10'' is fixed to the claw portion 2b of the impression cylinder 2. The printing paper 10.10' fixed to the ink transfer means 3.4
After printing, the printing paper 10 printed by the ink transfer means 3 is discharged to the first paper discharge means 11, and the multi-print paper 10'' printed by the ink transfer means 4 is discharged to the second paper discharge means 13. The printing sheets 10a' and 10a' with single-sided printing are stacked in the magazine lie and the magazine 13c.Therefore, when performing single-sided printing with different contents, the respective plate cylinders of the ink transfer means 3.4 are stacked. By changing the copies 5, different types of printing can be performed at the same time.

尚、圧胴２の爪部２ａ、　２ｂは係止爪９ｄの近傍に位
置したときに開閉して圧ｗ４２に印刷用紙１０を固定し
、くわえ替え胴１１ａにもっとも接近したときに再び開
閉して印刷用紙１０をくわえ替え胴１１ａに受け渡す。The claws 2a and 2b of the impression cylinder 2 are opened and closed to fix the printing paper 10 to the impression w42 when they are located near the locking claw 9d, and are opened and closed again when the impression cylinder 2 is closest to the gripping cylinder 11a. The printing paper 10 is delivered to the gripping cylinder 11a.

爪部２ａ、　２ｂが係止爪１２ｄに接近すると、再度開
閉して第２の給紙手段１２から印刷用紙１０°を受け取
って圧ｊ！ｉ２に固定し、第２の排紙手段１３のくわえ
替え胴１３ａにもっとも接近したときに開閉してくわえ
替え１１１ｉ４１３ａに第２のインク転移手段４で印刷
した印Ｓｔｔ用紙１０ａ“を受け渡す。When the claws 2a, 2b approach the locking claw 12d, they open and close again to receive the printing paper 10° from the second paper feeding means 12 and apply pressure j! i2, and opens and closes when it comes closest to the gripper cylinder 13a of the second sheet discharge means 13, and delivers the stamp Stt sheet 10a'' printed by the second ink transfer means 4 to the gripper 111i413a.

両面印刷を行なう場合には、第１の給紙手段９のマガジ
ン９ａにのみ印刷用紙１０を積層して、第２の給紙手段
１２のマガジン１２ａには印刷用紙１０’　を積層しな
い、この両面印刷の場合には、第１図中矢印Ａ３参照５
で示すように、デリバリ−チェーンｌｌｂから移送され
てくる印刷用紙１０ａをマガジンｌｌｃ内に所定枚数積
層させる。マガジンｌｌｃ内に所定枚数印刷用紙１０ａ
が積層されたら、マガジンｌｌｃの上下動を行なう駆動
機構を駆動して、マガジンｌｌｃを第２の給紙手段１２
のマガジン１２ａ側に下降させる（第１図中矢印Ａ３参
照）、マガジンｌｌｃに積層された印刷用紙１０ａは、
吸着手段１２ｂに吸着された後デリバリ−チェーン１２
ｃに搬送されて係止爪１２ｄに係止され、くわえ替え１
ｉｉｌｌａから回動してきた爪部２ａ、　２ｂの開閉に
より圧胴２に固定される。圧胴２に固定された印刷用紙
１０は既に表側が印刷された状態で圧胴２に固定される
が、このときに圧胴２側に印刷済みの面が位置しており
、第２のインク転移手段４に印刷される場合には、印刷
用紙１０の裏側に印刷が行なわれる（第１図中矢印Ａ４
参照）、第２のインク転移手段４で両面印刷された印刷
用紙１０ａは、矢印Ａ５で示すように、爪部２ａ、　２
ｂがくわえ替え胴１３ａに接近するとくわえ替え胴１３
ａにくわえ替えられ、第２の排紙手段１３のデリバリ−
チェーン１３ｂに搬送されると共に、乾燥手段で乾燥さ
れ、マガジン１３ｃに積層される。When performing double-sided printing, the printing paper 10 is stacked only on the magazine 9a of the first paper feeding means 9, and the printing paper 10' is not stacked on the magazine 12a of the second paper feeding means 12. For printing, refer to arrow A3 in Figure 15.
As shown in , a predetermined number of printing sheets 10a transferred from delivery chain llb are stacked in magazine llc. Predetermined number of printing paper 10a in magazine llc
Once the magazines are stacked, the drive mechanism that moves the magazines llc up and down is driven to move the magazines llc to the second sheet feeding means 12.
The printing paper 10a stacked in the magazine llc is lowered to the side of the magazine 12a (see arrow A3 in FIG. 1).
Delivery chain 12 after being adsorbed by adsorption means 12b
c, and is locked by the locking claw 12d, and the grip change 1
It is fixed to the impression cylinder 2 by opening and closing the claws 2a and 2b that have rotated from the iilla. The printing paper 10 fixed to the impression cylinder 2 is fixed to the impression cylinder 2 with the front side already printed, but at this time, the printed side is located on the impression cylinder 2 side, and the second ink is When printing is performed on the transfer means 4, printing is performed on the back side of the printing paper 10 (arrow A4 in FIG. 1).
), the printing paper 10a printed on both sides by the second ink transfer means 4 has claws 2a, 2 as shown by arrow A5.
When b approaches the gripper cylinder 13a, the gripper cylinder 13
delivery of the second paper ejection means 13.
While being conveyed to the chain 13b, they are dried by a drying means and stacked in the magazine 13c.

第２図は片面多色刷り印刷の印刷工程を示したもので、
片面多色刷り印刷の場合には、両面印刷の場合と同様に
第２の給紙手段１２のマガジン１２ａには印刷用紙１０
を積層せず、圧胴２の爪部２ａ、　２ｂ及びくわえ替え
胴１１ａの爪１１ａ’の開閉調整を行なう。即ち、第１
の給紙装置９から印刷用紙１０が係止爪９ｄに給送され
た印刷用紙１０は係止爪９ｄで係止され、係止爪９ｄは
爪部２ａ、　２ｂの接近を待って待機している（第２図
中矢印Ｂ１参照）、爪部２ａ、　２ｂが係止爪９ｄ近傍
にきたら、係止爪９ｄが上方に回動するとともに爪部２
ａ、２ｂが開閉して、係止爪９ｄと爪部２ａ、　２ｂ間
で印刷用紙１０のくわえ替えを行ない印刷用紙１０を圧
胴２に固定する。爪部２ａ、２ｂが係止爪９ｄから印刷
用紙１０を受け取ったら、第１のインク転移手段３で片
面印刷を行なった後（矢印Ｂ２参照）に、第２の排紙手
段１３のくわえ替え胴１３ａに至るまで片面印刷済みの
印刷用紙１０ａを圧１ｔＪ２に固定する（矢印Ｂ２．　
Ｂ３参照）、印刷用紙１０ａは爪部２ａ、　２ｂで圧１
ｉ２に固定されるので、第２のインク転移手段４で多色
刷り印刷を行なっても色ずれが起こるおそれはない、第
２のインク転移手段４で多色刷り印刷がなされた印刷用
紙１０ｂは爪部２ａ、　　２ｂがくわえ替え胴１３ａに
接近したときにくわえ替えられて第２の排紙手段１３に
搬送され、マガジン１３ｃに積層される。Figure 2 shows the printing process for single-sided multicolor printing.
In the case of single-sided multicolor printing, the magazine 12a of the second paper feeding means 12 is loaded with printing paper 10, as in the case of double-sided printing.
The opening and closing of the claws 2a and 2b of the impression cylinder 2 and the claw 11a' of the gripping cylinder 11a is adjusted without stacking the two. That is, the first
The printing paper 10 fed from the paper feeder 9 to the locking claw 9d is locked by the locking claw 9d, and the locking claw 9d waits for the claws 2a and 2b to approach. (see arrow B1 in FIG. 2), when the claws 2a and 2b come close to the locking claw 9d, the locking claw 9d rotates upward and the claw 2
a and 2b are opened and closed, the printing paper 10 is gripped between the locking claw 9d and the claw portions 2a and 2b, and the printing paper 10 is fixed to the impression cylinder 2. When the claws 2a and 2b receive the printing paper 10 from the locking claw 9d, the first ink transfer means 3 performs single-sided printing (see arrow B2), and then the gripping cylinder of the second paper ejection means 13 The printing paper 10a that has been printed on one side is fixed at the pressure 1tJ2 up to the point 13a (arrow B2.
(see B3), the printing paper 10a is pressed 1 by the claws 2a and 2b.
i2, there is no risk of color misregistration even if multicolor printing is performed by the second ink transfer means 4.The printing paper 10b on which multicolor printing is performed by the second ink transfer means 4 is fixed at the claw portion. When the sheets 2a and 2b approach the gripping cylinder 13a, they are gripped and conveyed to the second sheet discharge means 13, where they are stacked in the magazine 13c.

尚、第３図は、本発明の第２実施例を示すものであり、
この第２実施例では、圧胴２の周囲に４組のインク転移
手段２０〜２３が配設され、２４は第１の給紙手段、２
５は第１の排紙手段、２６は第２の給紙手段、２７は第
２の排紙手段である。第１〜第４のインク転移手段２０
〜２３と、第１、第２の給紙手段２４．２６及び第１、
第２の排紙手段２４．２７の構成は第１図のものと同様
であるので説明を省略する。この第２実施例によれば、
片面多色刷り印刷と、両面多色刷り印刷並びに異なる内
容の多色刷り印刷を短時間で行なうことが出来る。Incidentally, FIG. 3 shows a second embodiment of the present invention,
In this second embodiment, four sets of ink transfer means 20 to 23 are arranged around the impression cylinder 2, and 24 is a first paper feeding means;
Reference numeral 5 denotes a first paper ejecting means, 26 a second paper feeding means, and 27 a second paper ejecting means. First to fourth ink transfer means 20
23, first and second paper feeding means 24, 26 and first,
The configuration of the second paper ejecting means 24, 27 is the same as that in FIG. 1, so a description thereof will be omitted. According to this second embodiment,
Single-sided multicolor printing, double-sided multicolor printing, and multicolor printing with different contents can be performed in a short time.

又、第４図は、本発明の第３実施例を示したもので、こ
の実施例では、第１実施例及び第２実施例と同じ構成の
圧胴３０．３１を一対設け、この圧胴３０．３１の間に
受渡し胴３２を配設している。そして、第１の圧胴３０
に第２実施例の第１のインク転移手段２０と第２のイン
ク転移手段２１を対向配設し、第２の圧胴３１に第３、
第４のインク転移手段２２．２３を対向配設し、第１、
第２のインク転移手段側に第１の給紙手段２４と第２の
排紙手段２５を配設し、第３、第４のインク転移手段２
２．２３側に第１の排紙手段２５と第２の給紙手段２６
を配設している１個々の給紙手段並びに排紙手段の構成
及びインク転移手段の構成は第１実施例と同様であるの
で、詳細な説明を省略する。第１のインク転移手段２０
で印刷された印刷用紙１０は受渡し胴３２を介して第２
の圧胴３１に受け渡され、第３、第４のインク転移手段
２２．２３で異なった色を印刷された後に、再度受渡し
胴３２を介して第１の圧胴３０に受け渡され、第２のイ
ンク転移手段２１を介して第２の排紙手段２７に排紙さ
れる。これにより、より豊富な色彩の多色刷り印刷を行
なうことが出来る。FIG. 4 shows a third embodiment of the present invention. In this embodiment, a pair of impression cylinders 30 and 31 having the same configuration as the first and second embodiments are provided. A delivery cylinder 32 is disposed between 30 and 31. And the first impression cylinder 30
The first ink transfer means 20 and the second ink transfer means 21 of the second embodiment are arranged facing each other, and the second impression cylinder 31 is provided with a third ink transfer means 20 and a second ink transfer means 21 of the second embodiment.
Fourth ink transfer means 22,23 are arranged oppositely, the first,
A first paper feeding means 24 and a second paper discharging means 25 are arranged on the second ink transfer means side, and the third and fourth ink transfer means 2
2. A first paper ejecting means 25 and a second paper feeding means 26 are provided on the 23 side.
The configurations of the individual sheet feeding means and sheet discharging means and the configuration of the ink transfer means are the same as in the first embodiment, and detailed explanations thereof will be omitted. First ink transfer means 20
The printed paper 10 is transferred via the delivery cylinder 32 to the second
After being transferred to the first impression cylinder 31 via the transfer cylinder 32 and printed with different colors by the third and fourth ink transfer means 22, 23, the ink is transferred again to the first impression cylinder 30 via the transfer cylinder 32. The paper is discharged to the second paper discharge means 27 via the second ink transfer means 21 . This makes it possible to perform multicolor printing with a richer variety of colors.

（発明の効果） 本発明にかかる印刷装置は、以上説明したように構成し
たので、部品点数が従来のものに較べて少なく、しかも
、片面同時印刷や両面印刷或は多色刷り印刷が行なうこ
とが出来るとともに、小ロツト印刷において従来よりも
印刷時間を少なくすることが出来る。(Effects of the Invention) Since the printing device according to the present invention is configured as described above, the number of parts is smaller than that of the conventional device, and moreover, it is possible to perform single-sided simultaneous printing, double-sided printing, or multicolor printing. In addition, printing time can be reduced compared to conventional printing in small lot printing.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の第１実施例にかかるオフセット印刷装
置の構成を示す説明図、 第２ｒＭは第１図の印刷装置によって多色刷り印刷を行
なう状態の説明図、 第３図、第４図はそれぞれ本発明の第２実施例及び第３
実施例の構成を示す説明図である。 １・・・オフセット印刷装置 ２・・・圧胴 ２ａ、　２ｂ・・・爪部 ３．４・・・インク転移手段 ５・・・版胴本体 ６・・・ブランケット胴本体 ９・・・第１の給紙手段 １０・・・印刷用紙 １１・・・第１の排紙手段 １１ｃ・・・マガジン（移送手段） １２・・・第２の給紙手段 １３・・・第２の排紙手段FIG. 1 is an explanatory diagram showing the configuration of an offset printing apparatus according to a first embodiment of the present invention, FIG. 2rM is an explanatory diagram of a state in which multicolor printing is performed by the printing apparatus of FIG. 1, FIGS. 3 and 4 are the second embodiment and the third embodiment of the present invention, respectively.
FIG. 2 is an explanatory diagram showing the configuration of an example. 1... Offset printing device 2... Impression cylinders 2a, 2b... Claw portion 3.4... Ink transfer means 5... Plate cylinder body 6... Blanket cylinder body 9... First Paper feeding means 10...Printing paper 11...First paper discharging means 11c...Magazine (transfer means) 12...Second paper feeding means 13...Second paper discharging means

Claims (1)

【特許請求の範囲】[Claims] シート体を固定する爪部の開閉時期を回動角度に応じて
調整可能な圧胴の近傍に、圧胴上のシート体にインクを
転移する第１、第２のインク転移手段を対向配設し、こ
の第１のインク転移手段から第２のインク転移手段まで
の前記圧胴の回動領域に、前記圧胴からシート体を受け
取る第１の排紙手段を配設し、前記第２のインク転移手
段から第１のインク転移手段までの前記圧胴の回動領域
に、前記圧胴にシート体を供給する第１の給紙手段を配
設し、前記第１の排紙手段に前記シート体を受け渡す位
置から前記第２のインク転移手段までの前記圧胴の回動
領域に、前記圧胴に新たなシート体を給紙可能な第２の
給紙手段を配設し、前記第１の排紙手段と第２の給紙手
段との少なくとも何れかに、前記第１の排紙手段に送ら
れてきた前記シート体を前記第２のインク転移手段の印
刷前に再び前記圧胴に給紙可能な移送手段を設け、前記
第２のインク転移手段から前記第１の給紙手段までの前
記圧胴の回動領域に、前記圧胴から前記シート体を受け
取る第２の排紙手段を配設したことを特徴とする印刷装
置。First and second ink transfer means for transferring ink to the sheet body on the impression cylinder are arranged facing each other in the vicinity of the impression cylinder, which can adjust the timing of opening and closing of the claw portion that fixes the sheet body according to the rotation angle. A first paper ejection means for receiving the sheet from the impression cylinder is disposed in a rotating region of the impression cylinder from the first ink transfer means to the second ink transfer means, and A first sheet feeding means for supplying a sheet to the impression cylinder is disposed in a rotating region of the impression cylinder from the ink transfer means to the first ink transfer means, and A second paper feeding means capable of feeding a new sheet body to the impression cylinder is disposed in a rotating region of the impression cylinder from the sheet body delivery position to the second ink transfer means, The sheet body sent to the first paper discharging means is applied to at least one of the first paper discharging means and the second paper feeding means again under the above-mentioned pressure before printing by the second ink transfer means. A transfer means capable of feeding paper to the cylinder is provided, and a second discharge means for receiving the sheet body from the impression cylinder is provided in a rotational region of the impression cylinder from the second ink transfer means to the first paper feeding means. A printing device characterized by being provided with paper means.