JPS61108559A - Offset printing machine - Google Patents

Offset printing machine

Info

Publication number
JPS61108559A
JPS61108559A JP22891684A JP22891684A JPS61108559A JP S61108559 A JPS61108559 A JP S61108559A JP 22891684 A JP22891684 A JP 22891684A JP 22891684 A JP22891684 A JP 22891684A JP S61108559 A JPS61108559 A JP S61108559A
Authority
JP
Japan
Prior art keywords
plate cylinder
ink
roller
rollers
form rollers
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
JP22891684A
Other languages
Japanese (ja)
Inventor
Yoshiaki Kurokui
黒杭 芳秋
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP22891684A priority Critical patent/JPS61108559A/en
Publication of JPS61108559A publication Critical patent/JPS61108559A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/30Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/301Devices for tripping and adjusting form rollers

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

PURPOSE:To press an optimum number of form rollers against a plate cylinder corresponding to a pattern area ratio of a printed matter in a printing time, by providing the mountable and dismountable form rollers on the plate cylinder individually, and means operating mounting and dismounting of the form roller individually. CONSTITUTION:The bell cranks 25, 26 and 27, 28 are supported pivotally on the axle centres of vilnating rollers 4, 5 and the form rollers 33, 34, 35, 36 are supported pivotally at the one ends of the bell crank 25, 26, 27, 28 disposed on a side of a plate cylinder 1, the form rollers 33-36 are pressed against a periphery of the plate cylinder 1, when the forces are applied in the directions of the arrows D, E, F, G at the other ends 37-40 of the bell cranks 25-28. The form rollers 33-36 are diengaged from the periphery of the printing drum 1, when the other ends 37-40 of the bell crank 25-28 are moved in a reversed direction of the arrows D, E, F, G. The means to press the other ends 37-40 against the periphery of the plate cylinder may be consist of whether a spring for pressing and a solenoid for diengagement or a spring for a pressurization and a cam for disengagement being driven by a motor.

Description

【発明の詳細な説明】 (産業上の利用分野) 鴫滞萼彎ット印刷機に関するものである。[Detailed description of the invention] (Industrial application field) This relates to a printing press.

(従来の技術) 従来のオフセット印刷機における版胴へのインキ着ロー
ラを第10図により説明する。版胴(1)と平行な軸+
21(31を軸心として振シローラ(41(51が設け
られ、軸(2)を中心として回動可能なはルクランク(
6)(7)が設けられ、ベルクランク+6)(7)に枢
支されて常に撮りローラ(4)に接触するインキ着ロー
ラ(81+9+が設けられている。上記ベルクランク(
6)(7)の版胴(1)から離れた側の端部は圧縮ばね
Cl0I(11)により矢印A。
(Prior Art) An ink application roller for a plate cylinder in a conventional offset printing machine will be explained with reference to FIG. Axis parallel to plate cylinder (1) +
A vibration roller (41 (51) is provided with the shaft (2) as the center, and a crank (
6) (7) are provided, and an ink forming roller (81+9+) is provided which is pivotally supported by the bell crank +6) (7) and always comes into contact with the taking roller (4).
6) The end of (7) on the side away from the plate cylinder (1) is connected to the arrow A by the compression spring Cl0I (11).

B方向に付勢され、インキ着ローラ(8)(9)は版胴
(1)の周面に圧接している。また同リンク+61(7
)の版胴(1)側端にカムコロ(13(13t−枢着し
ている。同様に、軸(3)を中心として回動可能なベル
クランクα旬に枢支されて常に振シローラ(5)に接触
するインキ着ローラa9が設けられ、同イルクランクH
の一端は、圧縮ばね(1eにより矢印C方向に付勢され
、上記インキ着ローラα9は、版胴(1)の周面に圧接
している。
The ink forming rollers (8) and (9) are urged in the direction B and are in pressure contact with the circumferential surface of the plate cylinder (1). Also, the same link +61 (7
A cam roller (13 (13t) is pivotally attached to the side end of the plate cylinder (1) of the plate cylinder (1). Similarly, a cam roller (13t) is pivotally attached to the side end of the plate cylinder (1). ) is provided with an ink forming roller a9 that contacts the same ink crank H.
One end is biased in the direction of arrow C by a compression spring (1e), and the inking roller α9 is in pressure contact with the circumferential surface of the plate cylinder (1).

また、上記ベルクランクa4の版胴(1)側端にカムコ
ロ住ηを枢着している。版胴(1)に同版胴(1)と同
窓の同弧状のカム叫が設けられており、同カム餞の外周
面に三個の窪み部があり、その窪み部にカムコロ0如苅
乃が少しの隙間をもって夫々対向している。
Further, a cam roller housing η is pivotally attached to the side end of the plate cylinder (1) of the bell crank a4. The plate cylinder (1) is provided with an arc-shaped cam ring that has the same window as the plate cylinder (1), and there are three depressions on the outer circumferential surface of the cam ring. are facing each other with a small gap.

同カムa8金版胴(1)の中心を中心として矢印S方向
に回動すると、カムコロH(1刹ηは夫々持ち上げられ
、< ルクラ7り(61(7)(14) 全圧縮ばネ(
101(11)+161に抗して回動し、インキ着ロー
ラ(83(91(151は夫々矢印P。
When the cam a8 rotates in the direction of arrow S around the center of the plate cylinder (1), the cam roller H (1 η) is lifted, and the full compression spring (61 (7) (14)
101 (11) + 161, and the ink forming roller (83 (91 (151 is indicated by arrow P).

Q、Hの方向に移動し、版胴(1)の局面から離脱して
、印刷休止の状態となる。即ち、カム(18)の操作に
よシ、インキ着ローラ(81+91(へ)はすべてが同
時に版胴(1)と接触するか、離脱するかの二者択一的
な状態を選択するしか許されない構成になっている。
It moves in the Q and H directions, leaves the surface of the plate cylinder (1), and enters a printing halt state. In other words, by operating the cam (18), the ink forming rollers (81+91) can only be in one of two states: either all contact with the plate cylinder (1) at the same time, or they separate. It is configured so that it does not.

そルて、印刷時には、版M(1)の版面へ湿し装置σ1
により水が供給され、次いでインキ着ローラ叩t91+
8)からインキが供給される。この供給された水とイン
キは、版胴(1)に接するブランケット胴翰に転写され
、更にこのブランケット胴(イ)とブランケット胴■に
接する圧胴シυとに挾持搬送される印刷紙(櫻に転写さ
れる。
Then, during printing, a dampening device σ1 is applied to the plate surface of the plate M(1).
t91+
Ink is supplied from 8). The supplied water and ink are transferred to the blanket cylinder in contact with the plate cylinder (1), and the printing paper (Sakura) is conveyed while being held between the blanket cylinder (A) and the impression cylinder υ in contact with the blanket cylinder (2). transcribed into.

(発明が解決しようとする問題点) 前記第10図に示すオフセット印刷機のインキ着ローラ
では、版胴(1)の版面に供給された水の一部が各イン
キ着ローラを介してインキング装置のローラ群へ逆流し
くこれを「水上シ」という)、インキング装置のローラ
群のローラ表面でインキ乳化現象が発生し、印刷の品質
を劣化させる問題がある。第10図に示す三個のインキ
着ローラ(81(91α9゛、1      が版胴(
1)に接触している状態では、3回水上すすることにな
る。また、印刷時に印刷物の絵柄の面積率に応じた最適
のインキ着ローラの本数を選択してインキングし、水上
シの量を最少にして、インキの乳化現象を減少したいの
であるが、前記第10図の構成ではインキ着ローラの本
数の選択ができないという問題があった。
(Problems to be Solved by the Invention) In the ink forming rollers of the offset printing press shown in FIG. When the ink flows back to the roller group of the inking device (this is called "water flow"), an ink emulsification phenomenon occurs on the roller surface of the roller group of the inking device, which causes a problem of deteriorating the quality of printing. Three ink forming rollers (81 (91α9゛), 1 is the plate cylinder (
If you are in contact with 1), you will sip on the water three times. In addition, when printing, it is desired to select the optimal number of ink forming rollers according to the area ratio of the printed matter to minimize the amount of water spots and reduce the emulsification phenomenon of the ink. The configuration shown in FIG. 10 has a problem in that the number of ink forming rollers cannot be selected.

(問題点を解決するための手段) 本発明は前記の問題点に対処するもので、オフセット印
刷機において、版胴に着脱するインキ着ローラ群の各イ
ンキ着ローラを個別に着脱自在に構成したことを特徴と
するオフセット印刷機に係り、その目的とする処は、印
刷物の絵柄の面積率に応じた最適のインキ着ローラの本
数を選択してインキングし、水上り量を最少にしてイン
キ乳化現象を減じ高品質品の印刷が可能なオフセット印
刷機を供する点におる。
(Means for Solving the Problems) The present invention addresses the above-mentioned problems, and includes an offset printing machine in which each ink form roller of the ink form roller group that is attached to and detached from the plate cylinder is configured to be individually attachable and detachable. The purpose of the offset printing machine is to perform ink by selecting the optimal number of ink forming rollers according to the area ratio of the pattern of the printed matter, and to minimize the amount of water rising. The object of the present invention is to provide an offset printing machine that can reduce emulsification and print high quality products.

(実施例) 以下本発明のオフセット印刷機をi!1図乃至第9図に
示す一実施例により説明すると、第1図の(ハ)はイン
キ溜、(財)はインキ溜(至)から振ローラ(41(5
1にインキを適量に供給するためのインキングローラ群
、l:(1c34)C1(至)はインキ着ローラ、(1
)は版胴、■は版胴(1)に接しているブランケット胴
、c!■はブランケット胴■に圧接している圧胴であり
1.ブランケット胴■と圧胴(2υとに印刷紙四が挾持
搬送゛され、水膜とインキが印T$11紙@に転写され
、印刷が行なわれるようになっている。次にインキ着ロ
ーラを具体的に説明すると、 第2図に示すように、撮りロー? (4)(5)の軸心
にベルクランク(2!19(2F9と@(至)とを枢支
し、ベルクランク(2)■(潤(イ)の版胴(1)側の
端部(至)す16η0のにインキ着ローラ(ハ)04)
C(5)(至)を枢支し、ベルクランク(ト)〜(至)
の他端部3?)〜(41に矢印り、E、F、G方向の力
を加えると、インキ着ローラ(至)〜(ト)が版胴(1
)の周面に圧着する。そして同ベルクランク(至)〜弼
の他端部C37)〜(4Gを矢印り、E、F、(、と逆
の方向に動かすと、インキ着ローラ(ト)〜(例が版胴
(1)の周面より!脱する。ローラの支持手段はベルク
ランクによる手段に限るものではなり0着脱するた、め
に他端部(37)〜(4Gを加圧する手段は圧着用ばね
と離脱用ソレノイド9とで構成するか、加圧用ばねとモ
ータ駆動の離脱用カムとで構成してもよい。または、ば
ねで加圧し、手動で離脱してもよい。また、ベルクラン
ク@(5)の寸法、軸T21131の位置を変えること
により、@7図、88図に示すようにインキ着ローラ(
ロ)と(ト)とを接触させるようにすることができる。
(Example) The offset printing machine of the present invention will be described below using i! 1 to 9, (C) in FIG.
A group of inking rollers for supplying an appropriate amount of ink to 1, 1: (1c34) C1 (to) is an ink forming roller, (1
) is the plate cylinder, ■ is the blanket cylinder in contact with the plate cylinder (1), c! ■ is an impression cylinder that is in pressure contact with the blanket cylinder ■.1. The printing paper 4 is held and conveyed between the blanket cylinder ■ and the impression cylinder (2υ), and the water film and ink are transferred to the stamp T$11 paper @, and printing is performed.Next, the ink forming roller is moved. Specifically, as shown in Fig. 2, the bell crank (2!19 (2F9 and ) ■ (Ink forming roller (c) 04 at the end (to) 16η0 of the printing cylinder (1) side of the print cylinder (a))
C (5) (To) is pivoted, bell crank (G) to (To)
The other end 3? ) to (41 by applying force in the directions of arrows E, F, and G, the ink form rollers (to) to (g) move toward the plate cylinder (1).
). Then, if you move the bell crank (to) to the other end C37) to (4G in the opposite direction of the arrow, E, F, (, ) from the circumferential surface of the roller.The means for supporting the roller is not limited to a bell crank; It may be configured with a solenoid 9, or it may be configured with a pressure spring and a motor-driven detachment cam. Alternatively, it may be pressurized with a spring and detached manually. By changing the dimensions and the position of the axis T21131, the ink forming roller (
B) and (G) can be brought into contact.

(作用) 次に前記のオフセット印刷機のインキ着ローラの作用を
説明すると、第3図に示すように、ベルクランク(ハ)
〜りの端部Gη〜(49に矢印り、E、F、G方向に加
圧して、インキ着ローラ(至)〜(7)が全部版胴(1
)に圧接している全層の状態、ベルクランク例或いは(
5)の端部(至)或いはC3’lが矢印E或いはFの逆
方向に離脱力の働いている第4図、第5図に示す3本着
状態、イルクランク(ハ)と(至)の端部G7)と(4
0に矢印り、G方向に力の働いている第6図に示すよう
な二本着の状態、第7図、第8図に示すようにベルクラ
ンク例或いは(ハ)の端部(41或いはGηのみに矢印
G或いはD方向の力の働いている一本着の状態、第9図
に示すように全はルクランクの端部07)〜(40に矢
印り、E、F、Gと逆の力の働いている全部の状態の5
つの態様に選択的に制御することが出来る。また、第7
図、第8図に示すように中央側のインキ着ローラ(ロ)
と09とが互に接して、インキの流れを循環させること
もできる。
(Function) Next, to explain the function of the ink forming roller of the offset printing machine, as shown in FIG.
Apply pressure in the E, F, and G directions at the end of Gη (49) so that all of the ink forming rollers (to) to (7) are attached to the plate cylinder (1).
), the entire layer is in pressure contact with the bell crank, or (
5) The end (to) of C3'l or C3'l has a detachment force acting in the opposite direction of arrow E or F. The three-piece attachment state shown in Fig. 4 and Fig. 5, Il crank (C) and C3'l (to) end G7) and (4
0 and the force is acting in the G direction, as shown in Fig. 6, in which the two bolts are attached, and as shown in Figs. 7 and 8, the end (41 or In a state where a force in the direction of arrow G or D is acting only on Gη, as shown in Fig. 9, all the parts are at the ends of Le crank 07) to (arrow 40, opposite to E, F, G). 5 of all states in which forces work
It can be selectively controlled in two ways. Also, the seventh
As shown in Fig. 8, the ink forming roller (b) on the center side
and 09 may be in contact with each other to circulate the ink flow.

前記のように、インキ着ローラを版胴(1)へ選択的に
自在に圧着させることが可能となり、水上り現象も自在
に制限することができる。
As described above, it is possible to selectively and freely press the ink forming roller onto the plate cylinder (1), and it is also possible to freely limit the water rising phenomenon.

(発明の効果) 本発明のオフセット印刷機は前記の通り、オフセット印
刷機において、版胴に個別に着脱可能なインキ着ローラ
と、インキ着ローラの個別の着脱を操作する手段とを設
けたために、印刷物の絵柄面積率に応じて最適本数のイ
ンキ着ローラを印刷時版胴に圧着させることができる。
(Effects of the Invention) As described above, the offset printing press of the present invention is equipped with an ink forming roller that can be individually attached to and detached from the plate cylinder, and a means for individually attaching and detaching the ink forming roller. According to the image area ratio of printed matter, an optimum number of ink forming rollers can be pressed against the plate cylinder during printing.

このように、必要最小限のインキ着ローラを版胴に圧接
させて印刷を行なうため、インキローラ群への水上り現
象によるインキの乳化現象を最少に喰い止め、印刷の高
品質化が計れる効果がある。
In this way, since printing is performed by pressing the minimum number of ink forming rollers against the plate cylinder, the emulsification of ink caused by water rising onto the ink roller group is minimized, resulting in higher quality printing. There is.

以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。
Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .

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

第1図は本発明のオフセット印刷機の一実施例を示す側
面図、第2図は第1図の娠りローラとインキ着ローラと
版胴との構成を示す側面図、第3図乃至M9図は第2図
の各態様を示す模式図、第10図は従来例のオフセット
印刷機を示す側面図である。 (1)・・・版胴、+4+ 、 t5)・・・振シロー
ラ、(至)、(財)、(ト)、(ト)・・・インキ着ロ
ーラ。 復代理人  弁理士  岡 本 重 文外3名 τ 第1図 第2図
FIG. 1 is a side view showing an embodiment of the offset printing machine of the present invention, FIG. 2 is a side view showing the structure of the curling roller, ink forming roller, and plate cylinder shown in FIG. 1, and FIGS. 3 to M9. The figure is a schematic diagram showing each aspect of FIG. 2, and FIG. 10 is a side view showing a conventional offset printing press. (1)... Plate cylinder, +4+, t5)... Shaking roller, (To), (Goods), (G), (G)... Ink forming roller. Sub-agent Patent attorney Shige Okamoto 3 other persons τ Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] 版胴に着脱するインキ着ローラ群の各インキ着ローラを
個別に着脱自在に構成したことを特徴とするオフセット
印刷機。
An offset printing machine characterized in that each ink form roller of an ink form roller group that is attached to and detached from a plate cylinder is configured to be individually attachable and detachable.
JP22891684A 1984-11-01 1984-11-01 Offset printing machine Pending JPS61108559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22891684A JPS61108559A (en) 1984-11-01 1984-11-01 Offset printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22891684A JPS61108559A (en) 1984-11-01 1984-11-01 Offset printing machine

Publications (1)

Publication Number Publication Date
JPS61108559A true JPS61108559A (en) 1986-05-27

Family

ID=16883862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22891684A Pending JPS61108559A (en) 1984-11-01 1984-11-01 Offset printing machine

Country Status (1)

Country Link
JP (1) JPS61108559A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63242638A (en) * 1987-03-11 1988-10-07 ハイデルベルガー ドルックマシーネン アクチエンゲゼルシャフト Method of constantly generating ink distribution close to main printing to inking device for rotary press
DE4230090A1 (en) * 1992-09-09 1994-03-10 Heidelberger Druckmasch Ag Inking unit for printing machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63242638A (en) * 1987-03-11 1988-10-07 ハイデルベルガー ドルックマシーネン アクチエンゲゼルシャフト Method of constantly generating ink distribution close to main printing to inking device for rotary press
JPH07106630B2 (en) * 1987-03-11 1995-11-15 ハイデルベルガー ドルックマシーネン アクチエンゲゼルシャフト A method to make the ink distribution in the inking unit of a rotary printing press constant before starting printing
DE4230090A1 (en) * 1992-09-09 1994-03-10 Heidelberger Druckmasch Ag Inking unit for printing machines

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