JPH03243351A - Offset press - Google Patents

Offset press

Info

Publication number
JPH03243351A
JPH03243351A JP2040806A JP4080690A JPH03243351A JP H03243351 A JPH03243351 A JP H03243351A JP 2040806 A JP2040806 A JP 2040806A JP 4080690 A JP4080690 A JP 4080690A JP H03243351 A JPH03243351 A JP H03243351A
Authority
JP
Japan
Prior art keywords
cylinder
printing paper
dual
blanket cylinder
blanket
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
Application number
JP2040806A
Other languages
Japanese (ja)
Inventor
Ryuji Kobayashi
隆二 小林
Junichi Saito
純一 斉藤
Katsumi Iwasaki
岩崎 勝実
Mitsuo Yoshimura
吉村 光雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP2040806A priority Critical patent/JPH03243351A/en
Publication of JPH03243351A publication Critical patent/JPH03243351A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotary Presses (AREA)

Abstract

PURPOSE:To enable precision in working, assembly, and repair of a printing cylinder to be easily kept by a method wherein a combined use cylinder has a cylindrical form capable of rotating one turn for two turns of a blanket cylinder, and a plate cylinder pressing pinchingly printing paper is provided by installing the plate cylinder part on a circumferential surface of a half circumferential length of the combined use cylinder. CONSTITUTION:Since a diameter of a combined use cylinder 7 is established to be two times the diameter of a blanket cylinder 8 when transfer of ink to the blanket cylinder 8 has been completed, the blanket cylinder 8 approaches the combined use cylinder 7 side by operation of a rotary axle displacing mechanism, and the ink of the blanket cylinder 8 transfers to a surface of printing paper 4a fixed to an impression cylinder 12. Before a tip part of the printing paper 4a of the impression cylinder part 12 approaches most adjacent to a combined use cylinder 7', a claw 13' of an impression cylinder part 12' is opened and change of clamping the printing paper 4a is performed. Thereby, a rear surface side of the printing paper 4a becomes a front surface side. When the tip part of the printing paper 4a of the impression cylinder part 12' approaches a blanket cylinder 8', the blanket cylinder 8' is displaced to a combined use cylinder 7' side by the rotary axle displacing mechanism, and the ink is transferred to the rear surface side of the printing paper 4a with the blanket cylinder 8'.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はオフセット印刷装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to an offset printing apparatus.

(従来の技術) 従来、輪転式のオフセット印刷装置は、原版を備える版
胴と、この版胴の原版上に着肉されたインクを転写する
ブランケット胴と、ブランケット胴に転写されたインク
を印刷用紙に印刷する圧胴とを備えたものが知られてい
る0版胴には原版にインクを着肉する着肉装置と原版に
給水する給水装置とが設けられており、圧胴には、印刷
用紙の給紙装置と印刷済みの紙を圧胴から取り出す排紙
装置とが臨んでいる。給紙装置から取り出された印刷用
紙が、圧胴に固定される一方、版胴の原版からブランケ
ット胴に転写されたインクが、圧胴に固定された印刷用
紙に印刷されるようになっている。
(Prior Art) Conventionally, a rotary offset printing device has a plate cylinder equipped with an original plate, a blanket cylinder that transfers ink deposited on the original plate of this plate cylinder, and prints the ink transferred to the blanket cylinder. The zero plate cylinder, which is known to be equipped with an impression cylinder for printing on paper, is equipped with an inking device that inks the original plate and a water supply device that supplies water to the original plate. A paper feeding device for printing paper and a paper ejecting device for taking out printed paper from the impression cylinder are facing. The printing paper taken out from the paper feeding device is fixed to the impression cylinder, while the ink transferred from the original plate of the plate cylinder to the blanket cylinder is printed on the printing paper fixed to the impression cylinder. .

(発明が解決しようとする課題) しかしながら、このような従来のオフセット印刷装置の
場合、単色式のものでは版胴とブランケット胴と圧胴か
らなる3本の印刷胴を必要とし、多色式のものでは、単
色式のものに較べて印刷する色の積数倍の印刷胴を必要
とするので、印刷胴の加工、組立、修理の精度保持に手
間がかかるという課題があった。
(Problems to be Solved by the Invention) However, in the case of such conventional offset printing devices, a single-color type requires three printing cylinders consisting of a plate cylinder, a blanket cylinder, and an impression cylinder; Compared to a single-color type, printing cylinders are required to have as many printing cylinders as the number of colors to be printed, so there is a problem in that maintaining the precision of processing, assembly, and repair of printing cylinders takes time and effort.

(課題を解決するための手段) 上記課題を解決するために、本発明にかかるオフセット
印刷装置は、インキング装置から印刷用インクが供給さ
れ、且つ、給紙装置から印刷用紙が供給される兼用側を
備え、この兼用側は、ブランケット胴の2回転に対して
1回転可能な円筒形状を有すると共に、この兼用側の円
周方向の長さの半分の円周面にインクを着肉する版胴部
が設けられ、前記兼用側の円周方向の他の半分の円周面
に前記ブランケット胴とともに前記印刷用紙を挟圧する
圧胴部が設けられていることを特徴とする。
(Means for Solving the Problems) In order to solve the above problems, an offset printing device according to the present invention has dual functions in which printing ink is supplied from an inking device and printing paper is supplied from a paper feeding device. The dual-purpose side has a cylindrical shape that can rotate once for every two rotations of the blanket cylinder, and a plate for inking ink on the circumferential surface of half the circumferential length of the dual-purpose side. A drum is provided, and an impression cylinder that pinches the printing paper together with the blanket cylinder is provided on the other half of the circumferential surface of the dual-purpose side in the circumferential direction.

(作 用) 本発明にかかるオフセット印刷装置によれば、兼用側が
半回転すると、版胴部の移動にともなってブランケット
胴が1回転して版胴部のインクがブランケット胴に着肉
される。兼用側が更に半回転すると圧胴部に給紙された
印刷用紙がブランケット胴に臨み、ブランケット胴のイ
ンクが印刷用紙に印刷される。
(Function) According to the offset printing apparatus according to the present invention, when the dual-purpose side rotates half a rotation, the blanket cylinder rotates once as the plate cylinder moves, and the ink in the plate cylinder is deposited on the blanket cylinder. When the dual-purpose side rotates another half turn, the printing paper fed to the impression cylinder faces the blanket cylinder, and the ink in the blanket cylinder is printed on the printing paper.

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

第1図は、本発明の実施例にかかる輪転式オフセット印
刷装置の概略構成図を示したもので、オフセット印刷装
置lは、印刷装置本体2と、給紙装置3と、印刷用紙4
bを積層する収納装置5とを備え、給紙装置3から一枚
毎に取り出された印刷用紙4aは印刷装置本体2に給紙
され、印刷装置2で印刷された印刷物4bは排紙装置6
により搬送されて収納装置5に積層されるようになって
いる。尚、給紙装置3、排紙装置6は、従来公知のもの
と同様であるので、詳細な説明を省略する。
FIG. 1 shows a schematic configuration diagram of a rotary offset printing apparatus according to an embodiment of the present invention.
The printing paper 4a taken out one by one from the paper feeding device 3 is fed to the printing device main body 2, and the printed matter 4b printed by the printing device 2 is delivered to the paper discharging device 6.
The storage devices 5 are conveyed by the storage device 5 and stacked on top of each other. Note that the paper feeding device 3 and the paper discharging device 6 are the same as those conventionally known, so a detailed explanation will be omitted.

本実施例では、印刷装置本体2は両面印刷用のものとさ
れており、一対の兼用側7.7° と一対のブランケッ
トIR8,8’ と排紙装置6とを備えている。
In this embodiment, the printer main body 2 is for double-sided printing, and includes a pair of dual-purpose sides 7.7°, a pair of blankets IR8, 8', and a paper discharge device 6.

兼用側7゛の構成は兼用側7の構成と同じであるので、
重複記載を省略する。
The configuration of the dual-purpose side 7' is the same as that of the dual-purpose side 7, so
Omit duplicate descriptions.

兼用側7の近傍には、給水装置9とインキング装置10
とが配設されている。兼用側7は円筒形状を有し、兼用
側7の直径はブランケット胴8の直径の二倍に設定され
ている。兼用側7の外周面の円周方向の半分の部位は版
胴部11とされ、兼用側7の外周面の他の半分の部位は
圧胴部12とされている。版胴部11には、28版(プ
レセンシタイズ版)からなる厚さ0.24〜0.3■の
原版11aの#端部が版胴部11に取り付けられた万力
11cによって固定されている。
Near the dual-use side 7, a water supply device 9 and an inking device 10 are installed.
and are provided. The dual-purpose side 7 has a cylindrical shape, and the diameter of the dual-purpose side 7 is set to be twice the diameter of the blanket cylinder 8. A circumferential half portion of the outer circumferential surface of the dual-purpose side 7 is used as a plate cylinder portion 11, and the other half portion of the outer peripheral surface of the dual-purpose side 7 is used as an impression cylinder portion 12. The # end portion of an original plate 11a having a thickness of 0.24 to 0.3 cm and consisting of 28 plates (presensitized plate) is fixed to the plate body 11 by a vise 11c attached to the plate body 11. There is.

圧胴部12の回転方向の先端部には、印刷用紙4aの先
端部を固定する爪部13が設けられている。圧胴部12
の表面は、給水装置9からの湿し水とインキング装置1
0からのインクとを原版11aの表面にのみ転移させる
ように、版胴部11の原版11aの表面より低くなって
いる。
A claw portion 13 for fixing the leading end of the printing paper 4a is provided at the leading end of the impression cylinder 12 in the rotational direction. Impression cylinder 12
The surface is filled with dampening water from the water supply device 9 and the inking device 1.
The plate body 11 is lower than the surface of the original 11a so that the ink from 0 is transferred only to the surface of the original 11a.

ブランケット胴8は、兼用側7と同期回転するようにな
っており、版胴部11のインクをブランケット胴8に所
定の印圧(例えば0.1皿〜0.15m+a)で転移さ
せると共に、ブランケット胴8に転移したインクを印刷
用紙4aに均等な印圧で転移させるように、ブランケッ
ト胴8の回転軸を兼用側7に対して接近、離隔させる回
転軸変位m1ll (図示省略)を備えている。この回
転軸変位機構は、例えばエキセントリックカム機構成は
トグル機構等等により構成され、兼用側7の回転角度に
ともなってブランケット胴8の回転中心軸線を兼用側7
の回転中心軸線に向かって接近、離隔させる。即ち、回
転する圧胴部12の回転方向(第1図中矢印A方向)の
先端部12aがブランケット胴8に最も接近したときに
、回転軸変位機構によってブランケット胴8が圧胴部1
2の回転中心軸線方向に変位し、ブランケット胴8に転
移したインクを印刷用紙4aに均等な印圧(例えば、0
゜15−〜0.20M)で転移させるようになっている
The blanket cylinder 8 is configured to rotate in synchronization with the dual-purpose side 7, and transfers the ink from the plate cylinder 11 to the blanket cylinder 8 with a predetermined printing pressure (for example, 0.1 plate to 0.15 m+a), and A rotating shaft displacement m1ll (not shown) is provided for moving the rotating shaft of the blanket cylinder 8 toward and away from the dual-purpose side 7 so that the ink transferred to the cylinder 8 is transferred to the printing paper 4a with uniform printing pressure. . This rotating shaft displacement mechanism, for example, in the case of an eccentric cam machine configuration, is configured by a toggle mechanism, etc., and changes the rotation center axis of the blanket cylinder 8 to the dual-purpose side 7 according to the rotation angle of the dual-purpose side 7.
approach and move away from each other toward the center axis of rotation. That is, when the tip 12a of the rotating impression cylinder 12 in the rotation direction (direction of arrow A in FIG.
The ink transferred to the blanket cylinder 8 is applied to the printing paper 4a with an even printing pressure (for example, 0
15-0.20M).

兼用側7′ にも同様に版胴部11” と圧胴部12°
が設けられ、兼用側7′の周囲に給水装置9° 10゛
が配設されているが、兼用側7゛の回転方向は兼用側7
の回転方向(第1図中矢印B方向)に対して反対方向と
されており、兼用側7で片面が印刷された印刷用紙4a
の裏面側が表になるように、圧胴部12′の回転方向の
先端部12a′には、兼用側7の爪部工3が開閉すると
きに同時に開閉して印刷用紙4aを固定する爪部13′
が設けられている。このとき、兼用側7.7゛は非接触
状態である。即ち、圧胴部12と圧胴部12′ は、印
刷用紙4aのつかみ換えが出来るように、兼用側7.7
゛が回転するときに圧胴部12、12゛の回転方向の先
端部12a、 12a’が常時一致するようにセットさ
れている。圧胴部12′ も、圧胴部12と同様に版胴
部11°の原版111 にのみ給水とインクの転移が行
なわれるように、原版11a’ の円周より低く設定さ
れ、圧胴部12”に固定された印刷用紙4aの表面が均
一な印圧されるように、ブランケット胴8′にブランケ
ット胴8と同様に回転軸変位機構が設けられている。尚
、ブランケット胴8′の印刷開始位置には、第2図に示
すように、印刷用紙4aを圧胴部12“からつかみ換え
る爪14が設けられており、印刷用紙4aの先端部を固
定しつつ印刷用紙4aの裏面に印刷した後に、再び開い
て排紙装置6のチェーン6aにより印刷用紙4bの先端
部をつかみ換えるようになっている。尚、13a′、1
4aは爪13“ 14と共働して印刷用紙4bをくわえ
る爪台である。
Similarly, on the dual-purpose side 7', there is a plate cylinder part 11" and an impression cylinder part 12°.
is provided, and a water supply device 9° to 10° is arranged around the dual-purpose side 7', but the rotating direction of the dual-purpose side 7' is the same as that of the dual-purpose side 7'.
The printing paper 4a is printed on one side on the dual-purpose side 7.
The front end 12a' of the impression cylinder 12' in the rotational direction is provided with a claw part that opens and closes simultaneously to fix the printing paper 4a when the claw part 3 on the dual-purpose side 7 opens and closes so that the back side of the impression cylinder 12' is the front side. 13'
is provided. At this time, the dual-purpose side 7.7' is in a non-contact state. That is, the impression cylinder part 12 and the impression cylinder part 12' are connected to the dual-purpose side 7.7 so that the printing paper 4a can be changed.
The rotational direction of the impression cylinders 12, 12' is set so that the tips 12a, 12a' of the impression cylinders 12, 12' are always in alignment with each other when the impression cylinders 12, 12' rotate. Like the impression cylinder 12, the impression cylinder 12' is also set lower than the circumference of the original 11a' so that water is supplied and ink is transferred only to the original 111 at the plate cylinder 11°. Similarly to the blanket cylinder 8, the blanket cylinder 8' is provided with a rotating shaft displacement mechanism so that the surface of the printing paper 4a fixed to the printing paper 4a is uniformly printed. As shown in FIG. 2, a claw 14 is provided at the position to change the grip of the printing paper 4a from the impression cylinder 12'', and it is possible to print on the back side of the printing paper 4a while fixing the leading end of the printing paper 4a. Later, it is opened again and the leading end of the printing paper 4b is gripped by the chain 6a of the paper ejecting device 6. Furthermore, 13a', 1
Reference numeral 4a denotes a claw base that works together with claws 13'' and 14 to grip the printing paper 4b.

次に、本実施例にかかる輪転式オフセット印刷装置lの
動作を説明する。
Next, the operation of the rotary offset printing apparatus l according to this embodiment will be explained.

兼用網7が第1図中矢印へ方向に回転すると、先ず、給
水装置9により原版11aに湿し水が給水された後に、
原版11aにインキング装置からインクが転移される。
When the dual-purpose net 7 rotates in the direction of the arrow in FIG. 1, dampening water is first supplied to the original plate 11a by the water supply device 9, and then,
Ink is transferred to the original plate 11a from the inking device.

このとき、兼用網7°は回転しており、兼用網7゛の原
版11a’ にも給水とインクの転移がなされる。イン
クが転移した原版11aは兼用網7の回転にともなって
ブランケット胴8に当接し、原版11aのインクがブラ
ンケット胴8に転移する。兼用網7が更に回転してブラ
ンケット胴8に対する原版11aのインクの転移が終了
する前に、給紙装置3の送り爪3aが開いて印刷用紙4
aが圧胴部12に供給され、圧胴部12の先端部12a
の爪部13が開いて印刷用紙4aの先端部を圧胴部12
に固定する。このときには、まだブランケット胴8への
インクの転移は完了していない。ブランケット胴8への
インクの転移が完了したときには、ブランケット胴8の
直径に対して兼用網7の直径が二倍に設定されているの
で、ちょうど圧胴部12の先端部12aがブランケット
胴8の最接近位置に位置すると共に、回転軸変位機構が
働いてブランケット胴8が兼用側7側に接近し、圧胴部
12に固定された印刷用紙4aの表面にブランケット胴
8のインクが転移する。圧胴部12の印刷用紙4aの先
端部が兼用網7°に最も接近する前に圧胴部12′の爪
13’ が開いて印刷用紙4aのつかみ換えが行なわれ
る。この印刷用紙4aのつかみ換えにより印刷用紙4a
の裏面側が表になる。圧胴部12°の印刷用紙4aの先
端部がブランケット胴8′に接近すると、ブランケット
胴8゛が回転軸変位機構により兼用網7゛側に変位し、
ブランケット胴8゛によって印刷用紙4aの裏面側にイ
ンクの転移がなされる。
At this time, the dual-purpose net 7° is rotating, and water supply and ink are also transferred to the original plate 11a' of the dual-purpose net 7''. The original plate 11a to which the ink has been transferred comes into contact with the blanket cylinder 8 as the dual-purpose net 7 rotates, and the ink on the original plate 11a is transferred to the blanket cylinder 8. Before the dual-purpose net 7 further rotates and the transfer of ink from the original plate 11a to the blanket cylinder 8 is completed, the feeding claw 3a of the paper feeder 3 opens and the printing paper 4
a is supplied to the impression cylinder 12, and the tip 12a of the impression cylinder 12
The claw part 13 opens and the leading end of the printing paper 4a is moved to the impression cylinder part 12.
Fixed to. At this time, the ink transfer to the blanket cylinder 8 has not yet been completed. When the transfer of ink to the blanket cylinder 8 is completed, the diameter of the dual-purpose net 7 is set to twice the diameter of the blanket cylinder 8, so the tip end 12a of the impression cylinder 12 is exactly aligned with the blanket cylinder 8. At the same time as being located at the closest position, the rotating shaft displacement mechanism operates so that the blanket cylinder 8 approaches the dual-purpose side 7, and the ink in the blanket cylinder 8 is transferred to the surface of the printing paper 4a fixed to the impression cylinder 12. Before the leading edge of the printing paper 4a on the impression cylinder 12 comes closest to the dual-purpose net 7°, the claw 13' of the impression cylinder 12' opens and the printing paper 4a is changed. By changing the grip of the printing paper 4a, the printing paper 4a
The back side of is now the front side. When the leading edge of the printing paper 4a on the impression cylinder 12° approaches the blanket cylinder 8', the blanket cylinder 8' is displaced toward the dual-purpose net 7' by the rotating shaft displacement mechanism.
Ink is transferred to the back side of the printing paper 4a by the blanket cylinder 8'.

兼用網7°において印刷用紙4aの裏面側に印刷が行な
われているとき、兼用網7は回転を続けており、原版1
1aには新たに給水とインクの転移が行なわれ、ブラン
ケット胴8に原版11aのインクの転移が行なわれてい
る。ブランケットr48°において表裏面が印刷された
印刷用紙4bの先端部は、ブランケット胴8゛ を通過
した後に、ブランケット1lii8’ の爪14の開き
とチェーン6aによるつかみ換えとによりチェーン6に
より搬送され、収納容器5上に位置したときに、チェー
ン6aから外れて収納容器5内に積層される。
When printing is being performed on the back side of the printing paper 4a at the dual-purpose net 7°, the dual-purpose net 7 continues to rotate, and the original plate 1
1a is newly supplied with water and ink is transferred, and the ink of the original plate 11a is transferred to the blanket cylinder 8. After passing through the blanket cylinder 8', the leading edge of the printing paper 4b with the front and back sides printed at the blanket r48° is conveyed by the chain 6 by opening the claw 14 of the blanket 1lii8' and changing the grip by the chain 6a, and is stored. When positioned on the container 5, it comes off the chain 6a and is stacked inside the storage container 5.

第3図、第4図は、本発明の第2実施例にかかるオフセ
ット印刷装置20を示したものであり、このオフセット
印刷装置20では、片面多色刷り印刷が行なわれるよう
に、兼用網7.7°の間に兼用網7の印刷用紙4aを兼
用網7″に受は渡す受渡し胴21が配設されている(第
4図参照)。この実施例では、兼用網7′は兼用網7と
同じ方向に回転するようになっており、受渡し胴21が
兼用網7からつかみ換えた印刷用紙4aの先端部が兼用
網7′に最も接近するときに、圧胴部12°の先端部1
2a°が受渡し胴21の爪22に一致するように、兼用
網7゛は回転するようになっている。
3 and 4 show an offset printing apparatus 20 according to a second embodiment of the present invention. In this offset printing apparatus 20, a dual-purpose mesh 7. A delivery cylinder 21 is disposed to transfer the printing paper 4a of the dual-purpose net 7 to the dual-purpose net 7'' between 7 degrees (see FIG. 4). In this embodiment, the dual-purpose net 7' is When the leading edge of the printing paper 4a transferred from the dual-purpose net 7 by the delivery cylinder 21 approaches the dual-purpose net 7', the leading edge 1 of the impression cylinder 12°
The dual-purpose net 7' is adapted to rotate so that the angle 2a coincides with the claw 22 of the delivery cylinder 21.

本実施例にかかるオフセット印刷装置では、兼用網7で
表面が印刷された印刷用紙4aは受渡し胴21の爪22
でつかみ換えられ、更に、受渡し胴21から兼用網7°
でつかみ換えられた後に、ブランケット胴8′と圧胴部
12゛ との挟圧によって印刷用紙4aの裏面が印刷さ
れる。裏面が印刷された印刷用紙4bは、チェーンにつ
かみ換えられて搬送され、収納容器の上方に位置したと
きに開放されて収納容器に積層される。
In the offset printing apparatus according to this embodiment, the printing paper 4a whose surface is printed with the dual-purpose net 7 is transferred to the claw 22 of the delivery cylinder 21.
The grip is changed at 7 degrees, and the dual-purpose net 7
After the printing paper 4a is gripped again, the back side of the printing paper 4a is printed by the pressure between the blanket cylinder 8' and the impression cylinder 12'. The printing paper 4b with the back side printed is transferred by a chain, and when it is located above the storage container, it is released and stacked on the storage container.

(発明の効果) 本発明にかかるオフセット印刷装置によれば、インキン
グ装置から印刷用インクが供給され、且つ、給紙装置か
ら印刷用紙が供給される兼用膜を備え、この兼用膜は、
ブランケット胴の2回転に対して1回転可能な円筒形状
を有すると共に、この兼用膜の円周方向の長さの半分の
円周面にインクを着肉する版胴部が設けられ、前記兼用
膜の円周方向の他の半分の円周面に前記ブランケット胴
とともに前記印刷用紙を挟圧する圧胴部が設けられてい
るので、従来に較べて部品点数が少なくなり、製作、加
工、修理、組立における精度管理が容易なものとなると
いう効果を奏する。
(Effects of the Invention) The offset printing device according to the present invention includes a dual-purpose film to which printing ink is supplied from the inking device and printing paper is supplied from the paper feed device, and the dual-purpose film has the following functions:
It has a cylindrical shape that can make one rotation for every two rotations of the blanket cylinder, and is provided with a plate cylinder portion on which ink is deposited on the circumferential surface of half the circumferential length of the dual-purpose film. Since an impression cylinder that pinches the printing paper together with the blanket cylinder is provided on the other half of the circumferential surface in the circumferential direction of This has the effect of making accuracy control easier.

【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
置の概略構成図、 第2図は第1図の兼用膜の爪部の構成を示す拡大図、第
3図は本発明の第2実施例にかかるオフセット印刷装置
の概略構成図、 第4図は第2実施例の受渡し胴の構成を示す部分拡大図
である。 1・・・オフセット印刷装置 2・・・印刷装置本体 3・・・給紙装置 4a・・・印刷用紙 5・・・収納装置 6・・・排紙装置 7.7′・・・兼用膜 8.8′・・・ブランケット胴 9・・・給水装置 10・・・インキング装置 11・・・版胴部 11a・・・原版 12・・・圧胴部 13・・・爪部 第 2 図 第 図
FIG. 1 is a schematic configuration diagram of an offset printing apparatus according to a first embodiment of the present invention, FIG. 2 is an enlarged view showing the configuration of the claw portion of the dual-purpose film in FIG. 1, and FIG. A schematic configuration diagram of the offset printing apparatus according to the embodiment. FIG. 4 is a partially enlarged view showing the configuration of the delivery cylinder of the second embodiment. 1... Offset printing device 2... Printing device main body 3... Paper feeding device 4a... Printing paper 5... Storage device 6... Paper ejection device 7.7'... Dual-purpose membrane 8 .8'...Blanket cylinder 9...Water supply device 10...Inking device 11...Plate cylinder 11a...Original plate 12...Impression cylinder 13...Claw portion 2 FIG. figure

Claims (1)

【特許請求の範囲】[Claims] インキング装置から印刷用インクが供給され、且つ、給
紙装置から印刷用紙が供給される兼用胴を備え、この兼
用胴は、ブランケット胴の2回転に対して1回転可能な
円筒形状を有すると共に、この兼用胴の円周方向の長さ
の半分の円周面にインクを着肉する版胴部が設けられ、
前記兼用胴の円周方向の他の半分の円周面に前記ブラン
ケット胴とともに前記印刷用紙を挟圧する圧胴部が設け
られていることを特徴とするオフセット印刷装置。
It has a dual-purpose cylinder to which printing ink is supplied from an inking device and printing paper is supplied from a paper feeder, and this dual-purpose cylinder has a cylindrical shape that can make one rotation for every two rotations of the blanket cylinder. , a plate cylinder for applying ink is provided on the circumferential surface of half of the circumferential length of this dual-purpose cylinder,
An offset printing apparatus characterized in that an impression cylinder portion that pinches the printing paper together with the blanket cylinder is provided on the other half of the circumferential surface of the dual-purpose cylinder in the circumferential direction.
JP2040806A 1990-02-21 1990-02-21 Offset press Pending JPH03243351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2040806A JPH03243351A (en) 1990-02-21 1990-02-21 Offset press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2040806A JPH03243351A (en) 1990-02-21 1990-02-21 Offset press

Publications (1)

Publication Number Publication Date
JPH03243351A true JPH03243351A (en) 1991-10-30

Family

ID=12590886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2040806A Pending JPH03243351A (en) 1990-02-21 1990-02-21 Offset press

Country Status (1)

Country Link
JP (1) JPH03243351A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005134534A (en) * 2003-10-29 2005-05-26 Mitsubishi Paper Mills Ltd Wet electrophotographic recording sheet
JP2005134533A (en) * 2003-10-29 2005-05-26 Mitsubishi Paper Mills Ltd Wet electrophotographic recording sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005134534A (en) * 2003-10-29 2005-05-26 Mitsubishi Paper Mills Ltd Wet electrophotographic recording sheet
JP2005134533A (en) * 2003-10-29 2005-05-26 Mitsubishi Paper Mills Ltd Wet electrophotographic recording sheet

Similar Documents

Publication Publication Date Title
JP3392420B2 (en) Multicolor printing press
US6050188A (en) Sheet-fed rotary press
US6000336A (en) Applicator cylinder with sleeve having recesses therein to receive grippers in a sheet-fed press
JP2008501547A (en) Printer
US6772709B2 (en) Varnish coating apparatus
US4664949A (en) Printing machine for printing and final varnishing of sheets
JPS63188049A (en) Printing press provided with coater function in combination
JP2000514378A (en) Multicolor sheet-fed printing press
US2360340A (en) Perfecting printing press
US20050155503A1 (en) Sheet-fed offset rotary printing press
JPS5957758A (en) Feeder for supplying printing cylinder in polychrome rotary press with liquid
EP0547753B1 (en) Offset press
JPS6127257A (en) Dry offset intaglio printing machine
JPH03243351A (en) Offset press
US5309839A (en) Method and apparatus for facilitating the printing of verso sides and the varnishing of recto sides of sheets
JPS60180842A (en) Double-side printing method and device in sheet paper offsetprinter
US5365846A (en) Format-adjustable sheet-turning device with change-over gears on a sheet-fed rotary printing press
JPH0156672B2 (en)
US6546862B1 (en) Method and device for producing a multicolor print
JPH0137272B2 (en)
JP2003521394A (en) Printing machine for sheet processing
JPS6052338A (en) Sheet offset rotary press
US2958275A (en) Cylinder printing machines
JP2591668B2 (en) Adjustment device for gap between cylinders of double-sided printing sheet-fed printing press
JPH0258108B2 (en)