JPH0222058A - Multicolor offset press - Google Patents
Multicolor offset pressInfo
- Publication number
- JPH0222058A JPH0222058A JP63171135A JP17113588A JPH0222058A JP H0222058 A JPH0222058 A JP H0222058A JP 63171135 A JP63171135 A JP 63171135A JP 17113588 A JP17113588 A JP 17113588A JP H0222058 A JPH0222058 A JP H0222058A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- printing
- plate
- ink
- blanket cylinder
- 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
- 238000007639 printing Methods 0.000 claims abstract description 51
- 238000007645 offset printing Methods 0.000 claims description 11
- 239000000976 ink Substances 0.000 description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Rotary Presses (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、多色刷オフセット印刷機に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a multicolor offset printing press.
枚葉紙に対してカラー印刷をする場合、イエ０−、マゼ
ツン、シアンおよび黒の４色のインキが必要とされるた
め、それぞれのインキに対応する４つの色版が使用され
る。そして印刷に際しては、これらの各版のインキ像を
ブラケットに転写し、それより枚葉紙に印刷して、枚葉
紙上にカラー像を作るようにしている。When color printing is performed on a sheet of paper, four color inks, yellow, magenta, cyan, and black, are required, so four color plates corresponding to each ink are used. When printing, the ink images of each of these plates are transferred to a bracket, and then printed onto a sheet of paper to create a color image on the sheet of paper.
上記のような４色刷印刷装置の従来技術として、版胴、
ゴム胴および圧胴から成る３胴ユニツトの４組を枚葉紙
の移送方向に連結したものがある。As the conventional technology of the above-mentioned four-color printing device, there are plate cylinders,
There is one in which four sets of three-cylinder units each consisting of a blanket cylinder and an impression cylinder are connected in the sheet transport direction.
しかし、上記のような印刷装置においては、隣接する３
胴ユニツト間に渡し胴あるいはチェンデリバリ等の渡し
機構を設ける必要があるため、装置が大型化する不都合
がある。また、枚葉紙を数回つかみ替えて送る必要があ
るため、レジスタ精度（見当合わせ精度）が悪く、印刷
ずれが生じる不都合もある。However, in the above-mentioned printing device, three adjacent
Since it is necessary to provide a transfer mechanism such as a transfer cylinder or a chain delivery between the cylinder units, there is an inconvenience that the apparatus becomes larger. Furthermore, since it is necessary to re-grip and feed the sheets several times, there is also the disadvantage that registration accuracy (registration accuracy) is poor and printing misalignment occurs.
そこで、この発明は上記の不都合を解消し、多色刷オフ
セ・７ト印刷機の小型化と、印刷精度の向上を図ること
を技術的課題としている。Therefore, the technical object of the present invention is to solve the above-mentioned disadvantages, to reduce the size of a multicolor offset printing machine, and to improve printing accuracy.
上記の課題を解決するために、この発明においては、圧
胴との間において枚葉紙に印刷を施すゴム胴の外径を圧
胴のｎ倍径とし、そのゴム胴の外周にｎ個のインキ転写
部を形成し、上記ゴム胴の周囲に１乃至ｎ本の版胴を設
け、その版胴の外周に上記インキ転写部に対応する刷版
取付部を形成し、前記ゴム胴の１回転あたりに圧胴をｎ
回転させて印刷を行なうようにした構成を採用したので
ある。In order to solve the above problems, in the present invention, the outer diameter of the blanket cylinder that prints on sheets between the impression cylinder and the impression cylinder is n times the diameter of the impression cylinder, and n pieces are arranged on the outer periphery of the blanket cylinder. An ink transfer section is formed, 1 to n plate cylinders are provided around the blanket cylinder, a plate mounting section corresponding to the ink transfer section is formed on the outer periphery of the plate cylinder, and one rotation of the blanket cylinder is formed. Place an impression cylinder around
They adopted a configuration in which printing was performed by rotating the printer.
ここで、ｎは、整数であり、４色刷オフセット印刷機を
形成する場合には、ゴム胴を圧胴の４倍径とする。すな
わち、ゴム胴は色刷数と同数の倍径とする。そのゴム胴
の周囲に設ける版胴の数を１本とする場合には、版胴を
ゴム胴と同径としてその外周にｎ個の刷版取付部を形成
する。また、ｎを偶数とする倍径のゴム胴において、そ
の周囲に２本の版胴を設ける場合には、版胴の外周にｎ
／２個の刷版取付部を設けるようにする。Here, n is an integer, and when forming a four-color offset printing press, the blanket cylinder has a diameter four times that of the impression cylinder. That is, the blanket cylinder has the same number of diameters as the number of color printings. When the number of plate cylinders provided around the blanket cylinder is one, the plate cylinder is made to have the same diameter as the blanket cylinder, and n printing plate mounting portions are formed on its outer periphery. In addition, when installing two plate cylinders around a double diameter blanket cylinder where n is an even number, the outer circumference of the plate cylinder should be
/ Two printing plate mounting parts are provided.
〔作用〕
上記の構成から成る多色刷オフセット印刷機は、版胴に
取付けた刷版のインク像を、その刷版と対応するインキ
転写部に転写して、ゴム胴の各インキ転写部にインキ像
を転写し、そのゴム胴の１回転あたりに枚葉紙を支持す
る圧胴を、ゴム胴のインキ転写部の数だけ回転させて各
インキ転写部のインキ像を枚葉紙上に重ね刷りするので
ある。[Function] The multicolor offset printing machine configured as described above transfers the ink image of the printing plate attached to the printing cylinder to the ink transfer portion corresponding to the printing plate, and then transfers the ink image to each ink transfer portion of the rubber cylinder. The impression cylinder that supports the sheet of paper is rotated by the number of ink transfer areas on the blanket cylinder per rotation of the blanket cylinder, and the ink image of each ink transfer area is overprinted on the sheet of paper. be.
以下、この発明の実施例を添付図面に基づいて説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図は、この発明に係る多色刷オフセント印刷機の第
１の実施例を示す。図示のように、給紙部１にセットさ
れた枚葉紙Ｓは、給紙装置２の作動によって、圧胴３と
ゴム胴４間に１枚ずつ供給され、上記圧胴３に設けた咥
え爪（図示省略）によって先端部が保持される。FIG. 1 shows a first embodiment of a multicolor offset printing press according to the present invention. As shown in the figure, the sheets S set in the paper feed section 1 are fed one by one between the impression cylinder 3 and the blanket cylinder 4 by the operation of the paper feed device 2, and the sheets S set in the paper feed section 1 are fed one by one between the impression cylinder 3 and the blanket cylinder 4. The tip portion is held by a claw (not shown).
ゴム胴４は、上記圧胴１の４倍径とされ、その外周には
４つのインキ転写部５が形成されている。The blanket cylinder 4 has a diameter four times that of the impression cylinder 1, and four ink transfer portions 5 are formed on its outer periphery.
ゴム胴４の周囲には、２組の印刷ユニットＵが設けられ
ている。Two sets of printing units U are provided around the blanket cylinder 4.
各印刷ユニノｌ−Ｕは、版胴６を有し、この版胴６の径
は、前記圧胴３の２倍径とされ、外周には、２つの刷版
取付部７．７が設けられている。版胴６の周囲には、各
刷版取付部７．７に対応する２組のインキ供給装置８．
８と１組の湿し水供給装置９とが設けられている。Each printing unit L-U has a plate cylinder 6, the diameter of which is twice the diameter of the impression cylinder 3, and two plate mounting portions 7.7 are provided on the outer periphery. ing. Around the plate cylinder 6 there are two sets of ink supply devices 8., corresponding to each plate mounting portion 7.7.
8 and a set of dampening water supply devices 9 are provided.
湿し水供給装置９は、２つの刷版取付部７．７に取付け
られているそれぞれの刷版に対して水を供給する。その
供給方法は、ローラによる接触式であってもよく、スプ
レ一方式による非接触式でもよい。The dampening water supply device 9 supplies water to each of the printing plates mounted on the two printing plate mounting portions 7.7. The feeding method may be a contact type using a roller or a non-contact type using a one-way spray method.
一方、２組のインキ供給装置８におけるインキ付はロー
ラ８′、８′は、版胴６に対して交互に接触し、版胴６
に取付けられた２枚の刷版のうち、対応する刷版にのみ
インキを供給する。On the other hand, the inking rollers 8', 8' in the two sets of ink supply devices 8 are in contact with the plate cylinder 6 alternately.
Ink is supplied only to the corresponding printing plate among the two printing plates attached to the plate.
また、２組の印刷ユニットＵ、Ｕ間において、一方印刷
ユニットＵの版胴６がゴム胴４に接触しているとき、他
方印刷ユニットＵの版胴６はゴム胴４に対して非接触の
状態に保持され、各印刷ユニットＵ、Ｕの版胴６は、ゴ
ム胴４に対して交互に接触される。Furthermore, between the two printing units U, when the plate cylinder 6 of one printing unit U is in contact with the blanket cylinder 4, the plate cylinder 6 of the other printing unit U is in contact with the blanket cylinder 4. The plate cylinders 6 of each printing unit U, U are alternately brought into contact with the blanket cylinder 4.
前記圧胴３に保持された枚葉紙Ｓは、印刷後において、
排紙装置１０により排紙される。排紙部置１０は、圧胴
３に接触させた紙取り胴１１の両端に一対のスプロケッ
ト１２を取付け、そのスプロケット１２で案内される一
対のチェノ１３間につめざお１４を渡し、そのつめざお
１４に取付けた咥え爪（図示省略）で圧胴３から枚葉紙
Ｓの受は継ぎを行ない、チェノ１３の移動により排紙部
まで搬送したのち枚葉紙Ｓを排紙する。After printing, the sheet S held on the impression cylinder 3 is
The paper is ejected by the paper ejection device 10. The paper ejection unit 10 is constructed by attaching a pair of sprockets 12 to both ends of a paper take-up cylinder 11 that is in contact with the impression cylinder 3, and passing a pawl rod 14 between a pair of chinos 13 guided by the sprockets 12. The sheet S is received and spliced from the impression cylinder 3 by a gripping claw (not shown) attached to the holder 14, and the sheet S is discharged after being conveyed to a sheet discharge section by the movement of the chino 13.
第１の実施例で示す多色刷オフセント印刷機は上記の構
造から成り、枚葉紙Ｓへの印刷に際しては、印刷ユニッ
）Ｕにおける版胴６の刷版取付部７に刷版を取付け、そ
の版胴６、ゴム胴４および圧胴３を第１図の矢印方向に
回転し、上記圧胴３に枚葉紙Ｓを供給し、圧胴３が枚葉
紙Ｓを保持する状態で、ゴム胴４の１回転あたりに圧胴
３を４回転させる。The multicolor offset printing machine shown in the first embodiment has the above-mentioned structure, and when printing on a sheet S, a printing plate is attached to the plate attachment part 7 of the plate cylinder 6 in the printing unit U, and the printing plate is The cylinder 6, the blanket cylinder 4, and the impression cylinder 3 are rotated in the direction of the arrow in FIG. The impression cylinder 3 is rotated 4 times per rotation of 4.
上記のような印刷作業時、版胴６に取付けられた各刷版
のインキ像は、ゴム胴４の対応するインキ転写部５上に
転写される。このため、圧胴３が枚葉紙Ｓを保持する状
態で、その圧胴３を４回転させることにより、各インキ
転写部５上のインキ像が枚葉紙Ｓ上に重ね刷りされ、枚
葉紙Ｓ上にカラー像が形成される。印刷後、枚葉紙Ｓは
排紙装置１０によって排紙される。During the above-described printing operation, the ink image of each printing plate attached to the plate cylinder 6 is transferred onto the corresponding ink transfer portion 5 of the blanket cylinder 4. Therefore, by rotating the impression cylinder 3 four times while holding the sheet S, the ink image on each ink transfer section 5 is overprinted on the sheet S, and the sheet S is rotated four times. A color image is formed on the paper S. After printing, the sheet S is ejected by the ejection device 10.
第２図は、この発明に係る多色刷オフセント印刷機の第
２の実施例を示す。この第２の実施例においては、版胴
６を圧胴３の４倍径とし、その外周に４つの刷版取付部
７を設け、各刷版取付部７に取付けられる刷版に対応し
て４つのインキ供給装置８と１組の湿し水供給装置９を
設け、他の構成は、第１の実施例と同様の構成としであ
る。FIG. 2 shows a second embodiment of the multicolor offset printing press according to the present invention. In this second embodiment, the plate cylinder 6 has a diameter four times that of the impression cylinder 3, and four plate mounting portions 7 are provided on its outer periphery. Four ink supply devices 8 and a set of dampening water supply devices 9 are provided, and the other configurations are the same as those of the first embodiment.
上記第２の実施例においては、版胴６の刷版取付部７に
セットされた刷版のそれぞれに、対応するインキ供給装
置８からインキ供給し、そのインキ像をゴム胴４のイン
キ転写部５に転写し、ゴム胴４の１回転あたりに圧胴３
を４回転さゼ、各インキ転写部５のインキ像を圧胴３に
保持された枚葉紙Ｓ上に重ね刷りするのである。In the second embodiment, ink is supplied from the corresponding ink supply device 8 to each of the printing plates set in the printing plate attachment part 7 of the printing cylinder 6, and the ink image is transferred to the ink transfer part of the blanket cylinder 4. 5, and the impression cylinder 3 is transferred per rotation of the blanket cylinder 4.
is rotated four times, and the ink images of each ink transfer portion 5 are overprinted onto the sheet S held by the impression cylinder 3.
第１の実施例および第２の実施例においては、ゴム胴４
の外周に４つのインキ転写部５を形成した４色刷の印刷
機を示したが、ゴム胴４の外周に形成されるインキ転写
部５の数は、２つであってもよく、３つであってもよい
。２つのインキ転写部５を形成する場合は、ゴム胴４の
１回転あたりに圧胴３を２回転させ、また、インキ転写
部５の数が３つの場合は、ゴム胴４の１回転あたりに、
圧胴３を３回転させて圧胴３に保持された枚葉紙上にイ
ンキ像を重ね刷りする。In the first embodiment and the second embodiment, the rubber cylinder 4
Although a four-color printing machine is shown in which four ink transfer portions 5 are formed on the outer periphery of the blanket cylinder 4, the number of ink transfer portions 5 formed on the outer periphery of the blanket cylinder 4 may be two or three. There may be. When two ink transfer parts 5 are formed, the impression cylinder 3 is rotated twice per one rotation of the blanket cylinder 4, and when the number of ink transfer parts 5 is three, the impression cylinder 3 is rotated twice per one rotation of the blanket cylinder 4. ,
The impression cylinder 3 is rotated three times to overprint ink images on the sheet held by the impression cylinder 3.
枚葉紙に印刷を施すゴム胴を上記圧胴のｎ倍径とし、そ
のゴム胴の外周にｎ個のインキ転写部を設け、版胴から
上記インキ転写部のそれぞれに転写したインキ像を枚葉
紙に重ね刷りする組数のきわめて少ない構成であるため
、多色刷オフセット印刷機をきわめて小型化することが
できる。The blanket cylinder for printing on sheets has a diameter n times that of the impression cylinder, and n ink transfer sections are provided around the outer periphery of the blanket cylinder, and the ink image transferred from the plate cylinder to each of the ink transfer sections is printed on the sheet. Since the number of overprints on sheets is extremely small, the multicolor offset printing machine can be extremely downsized.
また、圧胴で枚葉紙を咥えた状態で枚葉紙に重ね刷りす
るため、レジスタ精度が良く、印刷ずれのない多色刷を
施すことができる。Furthermore, since overprinting is performed on the sheet while the impression cylinder holds the sheet in its mouth, the registration accuracy is high and multicolor printing without printing misalignment can be performed.
実施例のように、複数の刷版取付部を有する版胴を用い
、その版胴の周囲に、各刷版取付部に取付けられた刷版
に対してインキを供給するインキ供給装置と、１組の湿
し水供給装置とを設け、その湿し水供給装置を複数の刷
版に対して共通とすることにより、オフセント印刷機を
より小型化することができる。As in the embodiment, a plate cylinder having a plurality of plate mounting parts is used, and an ink supply device is provided around the plate cylinder to supply ink to the printing plates attached to each plate mounting part; By providing a set of dampening water supply devices and using the dampening water supply device in common for a plurality of printing plates, the offset printing press can be made more compact.
第１図は、この発明に係る多色刷オフセント印刷機の第
１の実施例を示す概略図、第２図は同上印刷機の第２の
実施例を示す概略図である。
３・・・・・・圧胴、 ４・・・・・・ゴム胴
、５・・・・・・インキ転写部、 ６・・・・・・版胴
、７・・・・・・刷版取付部。
特許出願人 株式会社濱田印刷機製造所同 代理人
鎌
田
文FIG. 1 is a schematic diagram showing a first embodiment of a multicolor offset printing machine according to the present invention, and FIG. 2 is a schematic diagram showing a second embodiment of the same printing machine. 3... Impression cylinder, 4... Rubber cylinder, 5... Ink transfer section, 6... Plate cylinder, 7... Printing plate Mounting part. Patent applicant: Hamada Printing Machinery Co., Ltd. Agent: Fumi Kamata
Claims (1)
外径を圧胴のｎ倍径とし、そのゴム胴の外周にｎ個のイ
ンキ転写部を形成し、上記ゴム胴の周囲に１乃至ｎ本の
版胴を設け、その版胴の外周に上記インキ転写部に対応
する刷版取付部を形成し、前記ゴム胴の１回転あたりに
圧胴をｎ回転させて印刷を行なうようにした多色刷オフ
セット印刷機。(1) The outer diameter of the blanket cylinder that prints on sheets between the impression cylinder and the impression cylinder is n times the diameter of the impression cylinder, and n ink transfer parts are formed on the outer periphery of the blanket cylinder. One to n plate cylinders are provided around the circumference, a printing plate attachment part corresponding to the ink transfer part is formed on the outer periphery of the plate cylinder, and printing is performed by rotating the impression cylinder n times per one rotation of the blanket cylinder. A multi-color offset printing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171135A JPH0222058A (en) | 1988-07-09 | 1988-07-09 | Multicolor offset press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171135A JPH0222058A (en) | 1988-07-09 | 1988-07-09 | Multicolor offset press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222058A true JPH0222058A (en) | 1990-01-24 |
Family
ID=15917634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63171135A Pending JPH0222058A (en) | 1988-07-09 | 1988-07-09 | Multicolor offset press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222058A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239049A (en) * | 2008-11-05 | 2011-11-09 | 高斯国际美洲公司 | Variable cutoff printing press with common blanket cylinder and method of variable cutoff printing |
| JP2019082527A (en) * | 2017-10-30 | 2019-05-30 | セイコーエプソン株式会社 | Actuator, optical device, and projector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239056A (en) * | 1986-10-17 | 1988-10-05 | Dainippon Screen Mfg Co Ltd | Multicolor offset press |
-
1988
- 1988-07-09 JP JP63171135A patent/JPH0222058A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63239056A (en) * | 1986-10-17 | 1988-10-05 | Dainippon Screen Mfg Co Ltd | Multicolor offset press |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239049A (en) * | 2008-11-05 | 2011-11-09 | 高斯国际美洲公司 | Variable cutoff printing press with common blanket cylinder and method of variable cutoff printing |
| JP2019082527A (en) * | 2017-10-30 | 2019-05-30 | セイコーエプソン株式会社 | Actuator, optical device, and projector |
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