JPH01154756A - Multi-color lithographic offset proof press - Google Patents

Multi-color lithographic offset proof press

Info

Publication number
JPH01154756A
JPH01154756A JP31490787A JP31490787A JPH01154756A JP H01154756 A JPH01154756 A JP H01154756A JP 31490787 A JP31490787 A JP 31490787A JP 31490787 A JP31490787 A JP 31490787A JP H01154756 A JPH01154756 A JP H01154756A
Authority
JP
Japan
Prior art keywords
blanket cylinder
cylinder
printing
carriage
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
JP31490787A
Other languages
Japanese (ja)
Inventor
Mamoru Shimogaki
下垣 守
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.)
SHIMOGAKI TEKKOSHO KK
Original Assignee
SHIMOGAKI TEKKOSHO KK
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 SHIMOGAKI TEKKOSHO KK filed Critical SHIMOGAKI TEKKOSHO KK
Priority to JP31490787A priority Critical patent/JPH01154756A/en
Publication of JPH01154756A publication Critical patent/JPH01154756A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To enhance mechanical efficiency and to reduce a machine length and a mounting area, by a method wherein, the peripheral length of a blanket cylinder is made the total length of a plurality of plate surfaces, the periphery of the blanket cylinder is divided by the number of the plates, and the size of a printing cylinder is determined to be a factor of the number of the divided blanket cylinder peripheries. CONSTITUTION:For example, in a two-color lithographic offset proof press, with one reciprocation of a blanket cylinder 6 with a carriage 7, an ink on the surface of a first lithography 1 is transferred to a corresponding peripheral section 6-1 of the blanket cylinder 6, and an ink on the surface of a second lithography 2 is transferred to a corresponding blanket cylinder peripheral section 6-2. The respective transferred color inks separated on the peripherally divided blanket cylinder are supplied to a printing cylinder 10 of the carriage 7. By the cooperation of the printing cylinder 10 and the blanket cylinder 6, the inks are transferred so as to be overlapped each other to a paper passing through these cylinders in the mode that the printing cylinder rotates twice, i.e. the number of the plates (the number of colors to be printed), during one rotation of the blanket cylinder 1 according to a diameter ratio of the printing cylinder 10 to the blanket cylinder 6-2:1. In this manner, since the one-way movement of the blanket cylinder, which has not been used for an operation conventionally, is assigned for an ink setting operation process, a carriage stroke can be remarkably reduced in comparison with a prior art.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は多色平版オフセット校正機、詳しくは並列して
設置された各色の平版の上をブランケット胴を往復動さ
せて版面のインクをブランケット胴にとり、これを紙に
転移する仕様で校正刷りを行う多色平版オフセット校正
機に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a multicolor lithographic offset proofing machine, and more specifically, a blanket cylinder is reciprocated over the lithographic plates of each color installed in parallel to collect ink on the printing plate onto the blanket cylinder. , relates to a multicolor lithographic offset proofing machine that performs proof printing by transferring the proof onto paper.

従来技術とその問題点 従来、この種の多色平版オフセット校正機としては、各
色の印刷版を備えた版定盤と更に用紙を備えた紙定盤を
フレーム内部に並列に設置し、印刷版と同数、つまり印
刷する色の数と同数のブランケット胴を並列し、該ブラ
ンケット胴を前記版定盤と紙定盤が並列設置されたフレ
ームの一端から長さ方向の他端、その逆にと往復動させ
、紙に 、印刷する多色平版オフセット校正機が一般に
知られている。
Conventional technology and its problems Conventionally, this type of multicolor lithographic offset proofing machine has a plate plate with printing plates of each color and a paper plate with paper installed in parallel inside the frame. The same number of blanket cylinders as the number of colors to be printed are arranged in parallel, and the blanket cylinders are moved from one end of the frame in which the plate surface plate and paper surface plate are installed in parallel to the other end in the length direction, and vice versa. Multicolor lithographic offset proofing machines that reciprocate and print on paper are generally known.

従来機は、印刷版と共に並列して設置された紙の上をブ
ランケット胴が往復動する関係上、ブランケット胴の往
動の片道が空駆動、即ち非稼働になることを余儀なくさ
れ、それだけ機械効率が悪くなる。
In conventional machines, because the blanket cylinder reciprocates over the paper that is placed in parallel with the printing plate, one way of the forward movement of the blanket cylinder is forced to be idle, that is, not in operation, which reduces machine efficiency. becomes worse.

また従来機は、印刷版と同数の並列されたブランケット
胴を有するキャリッジ、及び印刷版と同数のインクロー
ラー・水ローラー群を有するキャリッジが、フレーム内
部に並列して設置された各色の版定盤に更に紙定盤を並
設した範域に見合う距離をストロークさせる必要があり
、このためキャリッジの長さの3.5倍以上という相当
に大きな機械の長さが必要となる。また機械が長いので
、操作に伴う作業員の行動範囲も広がり、労力負担が増
大する。
In addition, in the conventional machine, a carriage with the same number of parallel blanket cylinders as the printing plates, and a carriage with the same number of ink rollers and water roller groups as the printing plates were installed in parallel inside the frame on each color plate plate. In addition, it is necessary to stroke a distance commensurate with the range in which the paper surface plates are arranged side by side, and this requires a considerably large length of the machine, which is more than 3.5 times the length of the carriage. In addition, since the machine is long, the range of movement of the worker during operation is also widened, increasing the labor burden.

本発明の目的は、従来機の欠点を除去し、従来機より機
械効率がよく、機械の長さを短縮でき、設置面積が大幅
に小さくなり、地価高騰時代に即応した多色平版オフセ
ット校正機を提供することにある。
The purpose of the present invention is to provide a multicolor lithographic offset proofing machine that eliminates the drawbacks of conventional machines, has better mechanical efficiency than conventional machines, can shorten the machine length, has a significantly smaller installation area, and is responsive to the era of soaring land prices. Our goal is to provide the following.

本発明の上記目的は、次に記載する構成の多色平版オフ
セット校正機によって達成される。
The above objects of the present invention are achieved by a multicolor lithographic offset proofing machine configured as follows.

並列して設置された各色の平版の上をブランケット胴を
往復動させて版面のインクをブランケット胴にとり、こ
れを紙に転移する仕様で校正刷りを行う多色平版オフセ
ット校正機であって、供給された紙をブランケット胴と
の協働の下、ブランケット胴との間を通過させる印刷胴
をブランケット胴のキャリッジ上に備え、上記ブランケ
ット胴が、−h記並列する版の版面の総和長さに実質上
、相当する長さのかつ版の数に相当する数に区分された
円周を有し、印刷胴が、ブランケット胴の実質上、上記
円周区分の数を分母とする整数分の1の直径を有するこ
とを特徴とする多色平版オフセット校正機。
This is a multi-color lithographic offset proofing machine that performs proof printing by reciprocating the blanket cylinder over the lithographic plates of each color installed in parallel to collect the ink on the plate surface onto the blanket cylinder and transfer it to the paper. A printing cylinder is provided on the carriage of the blanket cylinder for passing the printed paper between the blanket cylinder and the blanket cylinder in cooperation with the blanket cylinder, and the blanket cylinder has a length corresponding to the total length of the printing surfaces of the parallel plates as indicated by -h. The printing cylinder has a circumference substantially divided into sections of corresponding length and a number corresponding to the number of plates, and the printing cylinder has a circumference substantially equal to the number of circumference sections of the blanket cylinder, which is an integer fraction of the number of circumference sections as the denominator. A multicolor lithographic offset proofing machine characterized by having a diameter of .

作    用 本発明においては、ブランケット胴がキャリッジにつれ
1往復動すると、一番目の版の版面のインクが該版に対
応するブランケット胴の円周区分に、二番目の版の版面
のインクがそれに対応するブランケット胴円周区分にと
いうように、各版のインクがブランケット胴の対応円周
区分にとられる、つまりオフされる。このオフされたブ
ランケット胴円周区分別の各色インクは、キャリッジの
印刷胴に供給されて該印刷胴及びブランケット胴の協働
により、これ等用の間を通過されて行く紙に、ブランケ
ット胴に対する印刷胴の所定の直径比に従い、ブランケ
ット胴1回転の間に印刷胴が版の数(刷る色の数)だけ
の回数、回転するという態様の下に、重ねて転位、即ち
セットされる。
In the present invention, when the blanket cylinder moves back and forth with the carriage once, the ink on the plate surface of the first plate corresponds to the circumferential section of the blanket cylinder, and the ink on the plate surface of the second plate corresponds to the circumferential section of the blanket cylinder. The ink of each plate is deposited, or turned off, on a corresponding circumferential section of the blanket cylinder, such that the blanket cylinder circumferential section is injected into a corresponding circumferential section of the blanket cylinder. The ink of each color according to the circumferential section of the blanket cylinder that has been turned off is supplied to the printing cylinder of the carriage, and by the cooperation of the printing cylinder and the blanket cylinder, it is applied to the paper that is being passed between these cylinders. According to a predetermined diameter ratio of the printing cylinders, the printing cylinders are superimposed or set in such a manner that the printing cylinders rotate as many times as the number of plates (the number of colors to be printed) during one rotation of the blanket cylinder.

即ち、本発明の上記校正は、キャリッジに備えたブラン
ケット胴及び印刷胴の組み合わせ体上で紙に校正刷りす
る、換言すれば版と共に紙を並べて設置することなく、
所要の多色校正刷りを行うことをもたらす。このため本
発明によれば、従来で非稼働とせざるを得なかったブラ
ンケット胴片道動をインクセットの稼働工程に当てるこ
とができ、高い機械効率が得られるし、従来に比較しキ
ャリッジストロークが相当短くてよく、その分機械の長
さを短縮でき、設置面積が大幅に小さくなり、また操作
に伴う作業員の行動範囲も小さくなる。
That is, in the above-mentioned proofreading of the present invention, proof printing is performed on paper on a combination of a blanket cylinder and a printing cylinder provided in a carriage, in other words, the paper is not placed side by side with a plate,
This results in the production of the required multicolor proofs. Therefore, according to the present invention, the one-way movement of the blanket cylinder, which had to be stopped in the past, can be used for the ink set operation process, resulting in high mechanical efficiency and a considerably shorter carriage stroke than in the past. It can be short, which means that the length of the machine can be shortened accordingly, the installation area can be significantly reduced, and the range of movement of the operator associated with operation can also be reduced.

発明の効果 上記の如く本発明によれば、従来機より機械効率がよく
、しかも機械の長さを短縮でき、設置面積が大幅に小さ
くなり、操作に伴う作業員の行動範囲も小さくなる多色
平版オフセット校正機を提供することができる。
Effects of the Invention As described above, according to the present invention, the machine is more efficient than the conventional machine, and the length of the machine can be shortened, the installation area is significantly reduced, and the range of movement of the worker during operation is also reduced. We can provide a lithographic offset proofing machine.

実施例 次に本発明の実施例を添付図面を参照して説明する。Example Next, embodiments of the present invention will be described with reference to the accompanying drawings.

図示の本発明態様例は、二色平版オフセット校正機につ
いてのものである。
The illustrated embodiment of the invention is for a two-color lithographic offset proofing machine.

一方の色の平版である1版(1)、及び他方の色の平版
である■版(2)は、フレーム(3)上の左右に隣合う
版台(4)、(5)に固定されて、並列する状態下の配
置とされている。
The 1st plate (1), which is a lithographic plate of one color, and the 2nd plate (2), which is a lithographic plate of the other color, are fixed to the horizontally adjacent plate stands (4) and (5) on the frame (3). Therefore, they are placed in a parallel state.

ブランケット胴(6)はキャリッジ(7)上に装備され
、上記並列する版(1)及び(2)の上をキャリッジ(
7)と共に左右に往復動される。
The blanket cylinder (6) is mounted on the carriage (7) and moves over the parallel plates (1) and (2).
7) and is reciprocated from side to side.

ブランケット胴(6)は、上記版(1)の版面と版(2
)の版面との総和長さ(第1.2図の左右長さ)に実質
上、相当する長さ(厳密には版(1)(2)の間隔も含
めたものに対応する長さ)の円周であって、更に版(1
)(2)の数、つまり2つの区分の円周を持った構成と
する。該ブランケット胴(6)の2つに区分された円周
の1つが1方の版(1)に対する対応円周区分(6−1
)で有り、他が他方の版(2)に対する対応円周区分(
6−2)である。ブランケット胴(6)はこれと同心の
歯車(8)が側面に固定されている。
The blanket cylinder (6) has the plate surface of the plate (1) and the plate (2).
) substantially corresponds to the total length of the printing plate (horizontal length in Figure 1.2) (strictly speaking, the length corresponds to the length including the interval between printing plates (1) and (2)) The circumference of
) (2), that is, the configuration has two divisions of circumference. One of the two circumferential sections of the blanket cylinder (6) is a corresponding circumferential section (6-1) for one plate (1).
), and the other is the corresponding circumferential division (
6-2). A cogwheel (8) concentric with the blanket cylinder (6) is fixed to the side surface thereof.

キャリッジ(7)の往復運動のうち、第1図右方への移
動行程にあって、ブランケット胴(6)の歯車(8)が
噛合うラック(9)がフレーム(3)上に取付けられて
いる。
During the reciprocating movement of the carriage (7), in the rightward movement in Figure 1, the rack (9) that engages with the gear (8) of the blanket cylinder (6) is mounted on the frame (3). There is.

キャリッジ(7)上のブランケット胴(6)と協働して
、紙をブランケット胴(6)との間を通過させるための
印刷胴(10)をキャリッジ(7)上に装備する。該印
刷胴(10)は、ブランケット胴(6)の実質上、1/
2の直径、即ちブランケット胴(6)の円周区分の数を
分母とする整数分の1の直径とする。印刷胴(10)は
これと同心の歯車(11)が側面に固定されている。印
刷胴(10)はそれに供給された紙の始端をくわえる爪
(12)を有する。
A printing cylinder (10) is provided on the carriage (7) for cooperating with the blanket cylinder (6) on the carriage (7) and for passing the paper between the blanket cylinder (6). The printing cylinder (10) is substantially 1/1/2 of the blanket cylinder (6).
2, that is, the diameter is an integer divided by the number of circumferential sections of the blanket cylinder (6). A concentric gear (11) is fixed to the side of the printing cylinder (10). The printing cylinder (10) has a pawl (12) that grips the leading edge of the paper fed to it.

キャリッジ(7)は上記ラック(9)と噛合うピニオン
(13)を備えており、キャリッジ(7)上の可逆転モ
ータ(14)の正、逆回転により該ピニオン(13)を
正、逆駆動することにより、フレーム(3)上を左右に
往復動されるようになっている。
The carriage (7) is equipped with a pinion (13) that meshes with the rack (9), and the pinion (13) is driven in the forward and reverse directions by forward and reverse rotation of the reversible motor (14) on the carriage (7). By doing so, it is made to reciprocate from side to side on the frame (3).

ブランケット胴(6)はキャリッジ(7)上のガイド(
図示せず)に案内されて上下動可能な軸受け(15)に
軸架され、該軸受け(15)はその上面にリンク(16
)の一端が、下面にリンク(17)の一端がそれぞれ枢
着されている。該リンク(16)、(17)の他端はリ
ンク(18)、(19)の一端に枢着され、当該枢着端
部はキャリッジ(7)上の定位置で第3図の左右方向に
延びるガイド(20)(21)上を摺動し得るよう、該
ガイド(20)(21)に接触する可動端になっている
。リンク(18)(19)の他端は合して、レバー(2
2)の先端に枢着されている。このリンク(18)(1
9)とレバー(22)との枢着部は、リニアモータ(2
3)により上下動されるロッド(24)の上端に結合さ
れ、レバー(22)の基端部がキャリッジ(7)上の定
位置に枢着されている。レバー(22)が第3図に示す
右下りの状態にあって、ロッド(24)を上昇させると
、それにつれるレバー(22)の第3固定回り回動によ
り、リンク(18)と(16)の組、リンク(19)と
(17)の組を作動媒体として軸受け(15)が下り、
ロッド(24)を降下させると、軸受け(15)は上る
。この軸受け(15)の上下動につれ、ブランケット胴
(6)が1−下動する。
The blanket cylinder (6) is attached to the guide (
(not shown) is mounted on a bearing (15) that can move up and down, and the bearing (15) has a link (16) on its upper surface.
), and one end of a link (17) is pivotally connected to the lower surface. The other ends of the links (16) and (17) are pivoted to one end of the links (18) and (19), and the pivoted ends are in a fixed position on the carriage (7) in the left-right direction in FIG. It has a movable end that contacts the extending guides (20, 21) so as to be able to slide over the guides (20, 21). The other ends of the links (18) and (19) are aligned and the lever (2
2) is pivotally attached to the tip. This link (18) (1
9) and the lever (22), the linear motor (2
The lever (22) is connected to the upper end of a rod (24) that is moved up and down by a lever (22), and the base end of the lever (22) is pivoted at a fixed position on the carriage (7). When the lever (22) is in the downward rightward position shown in FIG. 3 and the rod (24) is raised, the third fixed rotation of the lever (22) causes the links (18) and (16 ), and the pair of links (19) and (17) are used as the working medium to lower the bearing (15),
When the rod (24) is lowered, the bearing (15) rises. As the bearing (15) moves up and down, the blanket cylinder (6) moves down by 1-.

ブランケット胴(6)の回転軸(25)には、ブランケ
ット胴(6)が上った状態、つまり歯車(8)がラック
(9)より離れた状態で、ブランケット胴(6)を第3
国有回りに回転させるためのモータ(26)がクラッチ
(27)及びタイミングベルトまたはチェノ等の伝動機
構(28)を介して接続されている。
The rotating shaft (25) of the blanket cylinder (6) has the blanket cylinder (6) in the third position with the blanket cylinder (6) up, that is, with the gear (8) separated from the rack (9).
A motor (26) for rotating the vehicle is connected via a clutch (27) and a transmission mechanism (28) such as a timing belt or a chain.

印刷胴(10)はキャリッジ(7)上のガイド(図示せ
ず)に案内されて第3図の右上り斜方向に前後動可能な
軸受け(34)に軸架され、該軸受け(34)は上記ブ
ランケット胴(6)の上下動に応じて、所定時にモータ
(36)により駆動されるカム(35)による制御の下
、前記斜方向に前後動される。カムフォロワー(37)
は、軸受け(34)上に取付けられており、軸受け(3
4)を押上げるスプリング(38)によりカム(35)
に圧接されている。
The printing cylinder (10) is guided by a guide (not shown) on the carriage (7) and mounted on a bearing (34) that can be moved back and forth in an upward diagonal direction to the right in FIG. In accordance with the vertical movement of the blanket cylinder (6), the blanket cylinder (6) is moved back and forth in the diagonal direction under the control of a cam (35) driven by a motor (36) at a predetermined time. Cam follower (37)
is installed on the bearing (34), and the bearing (3
4) by the spring (38) that pushes up the cam (35).
is pressed against.

図示の本発明多色平版オフセット校正機の作動は、次の
如くである。なお、版(1)(2)に対するインクの供
給、水塗工それ自体は、従来と何ら変りはない。従って
それについては説明しない。
The operation of the illustrated multicolor lithographic offset proofing machine of the present invention is as follows. Incidentally, the supply of ink to the plates (1) and (2) and the water coating itself are the same as in the past. Therefore, I will not explain it.

キャリッジ(7)が当初、フレーム(3)の第1図右方
にある、即ち機械が待機状態にあるとき、ブランケット
胴(6)は上っている。又カム(35)が軸受け(34
)を上昇させる位相を占め、ブランケット胴(6)の歯
車(8)と印刷胴(10)の歯車(11)が、相互のピ
ッチ円は離間するがそれ等の歯先までが完全に遊離しな
い程度に浅く噛合っている。これに従い、印刷胴(1o
)はブランケット胴(6)に対し、若干、浮上った状態
にある。
When the carriage (7) is initially on the right side of the frame (3) in Figure 1, ie when the machine is in standby, the blanket cylinder (6) is raised. Also, the cam (35) is connected to the bearing (34).
), the gear (8) of the blanket cylinder (6) and the gear (11) of the printing cylinder (10) are spaced apart from each other, but their tooth tips are not completely separated. They mesh fairly shallowly. According to this, the printing cylinder (1 o
) is in a slightly floating state with respect to the blanket cylinder (6).

この状態で、モータ(14)によりピニオン(13)を
第3固在回りに回転させる。すると、キャリッジ(7)
が左方へ移動する。キャリッジ(7)は定位置まで左方
へ移動すると、停止される。このキャリッジ(7)の停
止は適当な制御方式、例えばエンコーダ(33)を使用
し、ピニオン(13)の回転数を数値制御してピニオン
(13)を駆動するモータ(14)を停止するという制
御の下に行えばよい。この場合、モータ(14)はキャ
リッジ(7)の左方ストローク端到達の少し手前におい
て、キャリッジ(7)の前記定位置停止を確実にするた
めに、インバータ(図示せず)による制御で低速回転さ
れている。
In this state, the pinion (13) is rotated around the third fixed position by the motor (14). Then, the carriage (7)
moves to the left. When the carriage (7) moves to the left to the home position, it is stopped. This carriage (7) is stopped by using an appropriate control method, for example, using an encoder (33) to numerically control the rotation speed of the pinion (13) and stopping the motor (14) that drives the pinion (13). You can go below. In this case, the motor (14) is rotated at low speed under the control of an inverter (not shown) to ensure that the carriage (7) stops at the fixed position just before the carriage (7) reaches the left stroke end. has been done.

キャリッジ(7)が定位置で停止すると、ブランケット
胴(6)は下げられ(この行程を便宜上、A行程と呼ぶ
)、歯車(8)がラック(9)と噛合う。このブランケ
ット胴(6)の下降時、カム(35)により軸受け(3
4)と共に印刷胴(10)が押下げられ、ブランケット
胴(6)の歯車(8)と印刷胴(10)の歯車(11)
との前述した浅い噛合い状態を維持する。
When the carriage (7) stops in position, the blanket cylinder (6) is lowered (this stroke is conveniently referred to as the A stroke) and the gear (8) meshes with the rack (9). When the blanket cylinder (6) is lowered, the bearing (3) is moved by the cam (35).
4), the printing cylinder (10) is pushed down, and the gear (8) of the blanket cylinder (6) and the gear (11) of the printing cylinder (10)
The above-mentioned shallow mesh state is maintained.

次いでモータ(14)が逆転され、キャリッジ(7)が
復動される。こうして、ブランケット胴がキャリッジ(
7)の復動時に、版(1)及び(2)の版面上を第1図
の右回りの回転の下、接触し、それによりブランケット
胴(6)の円周区分(6−1)に版(1)のインクが、
円周区分(6−2)に版(2)のインクが取られる、つ
まりオフされる。
The motor (14) is then reversed and the carriage (7) is moved back. In this way, the blanket body moves into the carriage (
During the return movement of 7), the plates (1) and (2) come into contact with each other under the clockwise rotation of FIG. The ink of plate (1) is
The circumferential section (6-2) is inked or turned off from the plate (2).

キャリッジ(7)は定位置まで復帰すると、停止される
。この場合のキャリッジ(7)の停止制御は、前述した
と同様な手段により行えばよい。
When the carriage (7) returns to its home position, it is stopped. In this case, the carriage (7) may be stopped by the same means as described above.

キャリッジ(7)の復帰過程中、歯車(8)はラック(
9)と噛合っている。従って、キャリッジ(7)のこの
炬位置停止に基づき、ブランケット胴(6)の所定の回
転位相停止規制がなされる。
During the return process of the carriage (7), the gear (8) is placed on the rack (
9) meshes with each other. Therefore, based on this halting of the carriage (7), the blanket cylinder (6) is regulated to stop in a predetermined rotational phase.

キャリッジ(7)の復動中、クラッチ(27)は切れ、
伝動機構(28)は空転している。
During the return movement of the carriage (7), the clutch (27) is disengaged,
The transmission mechanism (28) is idling.

キャリッジ(7)が定位置へ復帰し、停止した状態下で
、ブランケット胴(6)が上昇されると共に、印刷胴(
10)もカム(35)制御の下、歯車(8)及び(11
)が前示浅い噛合いとなるよう上昇される。ブランケッ
ト胴(6)の上昇で、山車(8)はラック(9)から離
れる。次いで、ブランケット胴(6)の上昇状態のまま
、キャリッジ(7)が第1図左方へ移動される。キャリ
ッジ(7)が左方へ移動されるとき、クラッチ(27)
が入り、モータ(26)によりブランケット胴(6)が
第1図の右回りに回転され、これにつれ歯車(8)(1
1)を介し印刷胴(10)が第1図の左回りに回転され
る。
While the carriage (7) returns to its normal position and remains stationary, the blanket cylinder (6) is raised and the printing cylinder (
10) is also controlled by the cam (35), gears (8) and (11)
) is raised so as to create a shallow mesh. As the blanket cylinder (6) rises, the float (8) leaves the rack (9). Next, the carriage (7) is moved to the left in FIG. 1 while the blanket cylinder (6) remains in the raised state. When the carriage (7) is moved to the left, the clutch (27)
The motor (26) rotates the blanket cylinder (6) clockwise in Fig. 1, and the gear (8) (1
1), the printing cylinder (10) is rotated counterclockwise in FIG.

用紙は給紙台(29)を経て上記印刷胴(10)に供給
され、該印刷胴(10)の爪(12)にくわえられる。
The paper is fed to the printing cylinder (10) via the paper feed tray (29) and held by the claws (12) of the printing cylinder (10).

爪(12)が紙をくわえたまま、更にブランケット胴(
6)及び印刷胴(10)の回転が進み、印刷胴(10)
の爪(12)がブランケット胴(6)の円周区分(6−
1)の始端に来たときに、カム(35)により印刷胴(
10)が押下げられ、ブランケット胴(6)に対し圧接
状態となる。その後、更に進むブランケット胴(6)及
び印刷胴(10)の回転で、該印刷胴(10)及びブラ
ンケット胴(6)の協働の下、これ等の間を紙が通過さ
れて行く。実質上、ブランケット胴(6)が1回転する
間に、印刷胴(10)が2回転し、紙にブランケット胴
(6)の円周区分(6−1)上のインク及び円周区分(
6−2)上のインクが重ねて転移される、即ちセットさ
れる。
With the claw (12) still holding the paper in its mouth, press the blanket body (
6) and the printing cylinder (10) continue to rotate, and the printing cylinder (10)
The claws (12) of the blanket cylinder (6) have circumferential sections (6-
1), the cam (35) moves the printing cylinder (
10) is pushed down and comes into pressure contact with the blanket cylinder (6). Thereafter, with further rotation of the blanket cylinder (6) and the printing cylinder (10), the paper is passed between them under the cooperation of the printing cylinder (10) and the blanket cylinder (6). In effect, during one revolution of the blanket cylinder (6), the printing cylinder (10) makes two revolutions, and the ink on the circumferential section (6-1) of the blanket cylinder (6) and the circumferential section (
6-2) The upper ink is transferred or set in an overlapping manner.

印刷された紙は、排紙装置(30)により系外に排出さ
れる。排紙装置(30)は、従来公知の印刷機における
それと同じでよい。
The printed paper is discharged to the outside of the system by a paper discharge device (30). The paper ejecting device (30) may be the same as that in conventionally known printing machines.

キャリッジ(7)の左方移動が定位置まで進むと、キャ
リッジ(7)は既述したようにして停止され、上記rA
J行程に戻り、引続きそれ以降の行程が繰返される。キ
ャリッジ(7)が左移動を終えるまでに、上記印刷は終
了され、ブランケット胴(6)の第1図心回り回転は停
止し、ブランケット胴(6)は所定の回転位相を占めて
停止されており、一方印刷胴(10)’は印刷終了後、
ブランケット胴(6)に対し再び若干、浮上った状態と
なる。ブランケット胴(6)の当該停止は適当な方法、
例えばロータリエンコーダ(31)による制御方式によ
り行えばよい。該ロータリエンコーダ(31)は、ブラ
ンケット胴(6)の回転軸(25)の第3固有回り回転
に従動回転する歯車(32)の回転軸に接続され、モー
タ(26)を制御する。
When the carriage (7) moves leftward to the home position, the carriage (7) is stopped as described above, and the rA
The process returns to process J, and subsequent processes are repeated. By the time the carriage (7) finishes moving to the left, the printing has been completed, the rotation of the blanket cylinder (6) around the first centroid has stopped, and the blanket cylinder (6) has occupied a predetermined rotational phase and is stopped. On the other hand, after printing is completed, the printing cylinder (10)'
It will be in a slightly floating state again with respect to the blanket cylinder (6). The blanket cylinder (6) is stopped in a suitable manner,
For example, a control method using a rotary encoder (31) may be used. The rotary encoder (31) is connected to the rotating shaft of a gear (32) that rotates following the third rotation of the rotating shaft (25) of the blanket cylinder (6), and controls the motor (26).

以上に述べた本発明の実施例は二色平版オフセット校正
機についてのものであるが、本発明はこれにのみ限定さ
れることなく、三色以上の多色平版オフセット校正機も
包含することは勿論である。
Although the embodiments of the present invention described above relate to a two-color lithographic offset proofing machine, the present invention is not limited thereto, and may also include a multi-color lithographic offset proofing machine using three or more colors. Of course.

これについての実施例は、図面を参照して述べた上記実
施例と基本的に同じである。
The embodiments in this regard are basically the same as the embodiments described above with reference to the drawings.

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

第1図は本発明の一実施例を示す側面図、第2図はその
平面図、第3図は第1図に示された校正機におけるブラ
ンケット胴を上下動させる系、及び印刷胴を上下させる
系の立面図、第4図はその側面図である。 (1)(2)・・・平版 (3)・・・フレーム (4)(5)・・・版台 (6)・・・ブランケット胴 (6−1)(6−2)・・・ブランケット胴の円周区分 (7)・・・キャリッジ (8)(11)・・・歯車 (9)・・・ラック (10)・・・印刷胴 (12)・・・爪 (13)・・・ピニオン (14)・・・ピニオン駆動用モータ (26)・・・印刷時のブランケット胴駆動用モータ(
以 上) 第3図 第 4 図
FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a system for moving the blanket cylinder up and down in the proofing machine shown in FIG. 1, and a system for moving the printing cylinder up and down. Fig. 4 is an elevational view of the system in which this is carried out, and Fig. 4 is a side view thereof. (1) (2)... Lithographic plate (3)... Frame (4) (5)... Print stand (6)... Blanket cylinder (6-1) (6-2)... Blanket Cylinder circumference section (7)...Carriage (8) (11)...Gear (9)...Rack (10)...Printing cylinder (12)...Claw (13)... Pinion (14)...Pinion drive motor (26)...Blanket cylinder drive motor during printing (
Above) Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] (1)並列して設置された各色の平版の上をブランケッ
ト胴を往復動させて版面のインクをブランケット胴にと
り、これを紙に転移する仕様で校正刷りを行う多色平版
オフセット校正機であって、供給された紙をブランケッ
ト胴との協働の下、ブランケット胴との間を通過させる
印刷胴をブランケット胴のキャリッジ上に備え、上記ブ
ランケット胴が、上記並列する版の版面の総和長さに実
質上、相当する長さのかつ版の数に相当する数に区分さ
れた円周を有し、印刷胴が、ブランケット胴の実質上、
上記円周区分の数を分母とする整数分の1の直径を有す
ることを特徴とする多色平版オフセット校正機。
(1) This is a multicolor lithographic offset proofing machine that performs proof printing by moving a blanket cylinder back and forth over the lithographic plates of each color installed in parallel to collect ink on the plate surface onto the blanket cylinder and transferring it to paper. A printing cylinder is provided on the carriage of the blanket cylinder for passing the supplied paper between the blanket cylinder and the blanket cylinder in cooperation with the blanket cylinder, and the blanket cylinder has a printing cylinder that extends the total length of the printing surfaces of the parallel plates. The printing cylinder has a circumference of a length substantially corresponding to the number of plates and a circumference corresponding to the number of plates, and the printing cylinder has a circumference substantially corresponding to the number of plates.
A multicolor lithographic offset proofing machine characterized by having a diameter that is a fraction of an integer with the number of circumferential divisions as a denominator.
JP31490787A 1987-12-11 1987-12-11 Multi-color lithographic offset proof press Pending JPH01154756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31490787A JPH01154756A (en) 1987-12-11 1987-12-11 Multi-color lithographic offset proof press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31490787A JPH01154756A (en) 1987-12-11 1987-12-11 Multi-color lithographic offset proof press

Publications (1)

Publication Number Publication Date
JPH01154756A true JPH01154756A (en) 1989-06-16

Family

ID=18059077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31490787A Pending JPH01154756A (en) 1987-12-11 1987-12-11 Multi-color lithographic offset proof press

Country Status (1)

Country Link
JP (1) JPH01154756A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101885265A (en) * 2010-07-02 2010-11-17 上海美声服饰辅料有限公司 Color spreading instrument

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6166648A (en) * 1984-09-11 1986-04-05 Dainippon Screen Mfg Co Ltd Supplying device of damping water in multicolor lighographic proof press

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6166648A (en) * 1984-09-11 1986-04-05 Dainippon Screen Mfg Co Ltd Supplying device of damping water in multicolor lighographic proof press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101885265A (en) * 2010-07-02 2010-11-17 上海美声服饰辅料有限公司 Color spreading instrument

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