JPH0321346B2 - - Google Patents
Info
- Publication number
- JPH0321346B2 JPH0321346B2 JP58172828A JP17282883A JPH0321346B2 JP H0321346 B2 JPH0321346 B2 JP H0321346B2 JP 58172828 A JP58172828 A JP 58172828A JP 17282883 A JP17282883 A JP 17282883A JP H0321346 B2 JPH0321346 B2 JP H0321346B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- printing
- cylinders
- impression
- sheet
- 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.)
- Expired - Lifetime
Links
- 238000007639 printing Methods 0.000 claims description 80
- 210000000078 claw Anatomy 0.000 claims description 14
- 238000007645 offset printing Methods 0.000 claims description 9
- 239000003086 colorant Substances 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 235000007516 Chrysanthemum Nutrition 0.000 description 1
- 244000189548 Chrysanthemum x morifolium Species 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/02—Rotary lithographic machines for offset printing
- B41F7/10—Rotary lithographic machines for offset printing using one impression cylinder co-operating with several transfer cylinders for printing on sheets or webs, e.g. satellite-printing units
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、両面多色刷りオフセツト印刷機に係
るもので、枚葉紙を１回通せば、その表裏両面に
４色刷りのオフセツト印刷を行うことのできる印
刷機に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a double-sided multicolor offset printing machine, which can perform four-color offset printing on both the front and back sides of a sheet by passing it once. It is related to a printing machine that is capable of printing.
枚葉紙の表裏両面にオフセツト印刷を施すにあ
たり、印刷機１回通しでこれを行うには両面刷り
オフセツト印刷機が用いられる。この種両面刷り
印刷機には従来種々の形式のものがあるが、その
代表的なものとして、次のようなものが知られて
いる。
A double-sided offset printing machine is used to perform offset printing on both the front and back sides of a sheet in one pass of the printing press. Conventionally, there are various types of double-sided printing machines of this kind, and the following are known as representative ones.
すなわち、表面には多色印刷、裏面には単色印
刷し得るようになしたもの、表裏共単色印刷を行
うもの、表裏両面に多色印刷を施すことができる
もの等である。この中には、(イ)当初より両面刷り
印刷機として設計されているものや、(ロ)通常は片
面多色刷りの印刷機として使用されるが、必要に
応じて両面刷り印刷機に切換えて使用することが
できるもの、(ハ)前記以外の構成による両面多色刷
り印刷機等がある。 That is, there are those that can be printed in multiple colors on the front side and single color on the back side, those that can be printed in single color on both the front and back, and those that can be printed in multiple colors on both the front and back sides. Some of these machines include (a) those that are originally designed as double-sided printing machines, and (b) those that are normally used as single-sided multicolor printing machines, but can be converted to double-sided printing machines as needed. There are (c) double-sided multicolor printing machines with configurations other than those described above that can be used.
前者つまり(イ)のものには、１例として特開昭52
−86801号公報所載のものがある。該公報には１
回通しで表面２色裏面１色の印刷を行うことので
きるものと、表裏同時に単色印刷を行うことので
きるものとが開示されている。これ等は、いわゆ
るＢ−Ｂタイプと称されるもので、２本のゴム胴
のうちの１本に紙くわえ爪が装置されていて、紙
葉はこのゴム胴爪にくわえられ、２本のゴム胴間
を通過する際、表裏同時に両面印刷される構成で
ある。このようなＢ−Ｂタイプのものによつて枚
葉紙に両面４色の印刷を行うとすれば、印刷ユニ
ツト間に多数の中間胴が必要となり、機械が大型
化することは必然である。ちなみに、前記した表
面に２色刷り印刷を施すことのできるものは、同
公報に開示があるように、別に設けた単色刷り印
刷ユニツトを、中間胴３本を介して、前記Ｂ−Ｂ
タイプ印刷ユニツトに連接させて構成している。 For the former, that is, (a), as an example, there is
-There is one published in Publication No. 86801. The publication contains 1
There have been disclosed devices that can perform printing in two colors on the front side and one color on the back side and those that can perform monochrome printing on the front and both sides at the same time. These are the so-called B-B type, and one of the two rubber cylinders is equipped with a paper gripping claw, and the paper sheet is held in the grip of this rubber cylinder claw. When passing between blanket cylinders, printing is performed on both sides at the same time. If such a B-B type is used to print four colors on both sides of a sheet of paper, a large number of intermediate cylinders will be required between the printing units, and the machine will inevitably become larger. Incidentally, as disclosed in the above-mentioned publication, in the case where two-color printing can be performed on the surface, a separately provided single-color printing unit is connected to the above-mentioned B-B via three intermediate cylinders.
It is connected to a type printing unit.
次に、(ロ)通常の多色刷りオフセツト印刷機を両
面刷り機に転用できるものについて考察すると、
この型式の印刷機は、版胴、ゴム胴、圧胴の３胴
で構成される単色刷りの印刷ユニツトを中間胴で
連接していくいわゆるタンデム型多色刷り印刷機
に多く見られる。 Next, (b) considering how a normal multi-color offset printing machine can be converted into a double-sided printing machine,
This type of printing press is often found in so-called tandem multicolor printing presses in which a monochromatic printing unit consisting of three cylinders, a plate cylinder, a blanket cylinder, and an impression cylinder, is connected by an intermediate cylinder.
タンデム型印刷機で両面刷り兼用機となるもの
は、印刷ユニツト間に３本の中間胴が設けられて
いるのが通例である。この中間胴に枚葉紙の反転
装置が装備されていて、切換操作によつて両面刷
り機に転用できるのである。このときは、先づ表
面印刷用の前段の印刷ユニツトで、通常通り枚葉
紙の表面が印刷されるが、この枚葉紙が前記反転
装置を備えた中間胴を経て後段の印刷ユニツトに
送られるとき、前記反転装置の作用で枚葉紙は反
転され、紙の後縁が今度は先行するようになる。
従つて後段の印刷ユニツトでは枚葉紙の裏面が印
刷されることになる。 A tandem printing machine that can also be used for double-sided printing usually has three intermediate cylinders between the printing units. This intermediate cylinder is equipped with a sheet reversing device, and can be converted into a double-sided printing machine by switching operations. In this case, the front side of the sheet is first printed as usual in the front-stage printing unit for surface printing, but this sheet is sent to the rear-stage printing unit via the intermediate cylinder equipped with the reversing device. When the sheet is turned, the sheet is turned over by the action of the turning device so that the trailing edge of the sheet now leads.
Therefore, the rear side of the sheet is printed in the subsequent printing unit.
前記構成をとるものに、特公昭52−97802号、
特公昭52−138211号、特公昭53−79607号、特公
昭53−149404号公報等、に記載されているものが
ある。前記公報において知見できるように、その
反転装置はどれも複雑な機構をもち、切換時の調
整が繁雑であつて、印刷すべき枚葉紙のサイズが
変わればその繁雑さも増すと同時に、印刷可能の
枚葉紙のサイズにも機構上の制限が加わり、しか
も機械の大型化はまぬかれない。 Tokukokoku No. 52-97802,
Some of these are described in Japanese Patent Publication No. 52-138211, Japanese Patent Publication No. 79607-1979, Japanese Patent Publication No. 149404-1984, etc. As can be seen in the above-mentioned publication, all of the reversing devices have complicated mechanisms, and the adjustment at the time of switching is complicated, and the complexity increases as the size of the sheet to be printed changes, and at the same time, it is difficult to print. Mechanical limitations have also been added to the sheet size, and the machines have to become larger.
次に特公昭58−147364号に開示されているもの
について述べる。 Next, we will discuss what is disclosed in Japanese Patent Publication No. 58-147364.
上記公報の第２実施例に、枚葉紙の一回通しで
両面４色刷りが行える両面４色刷りオフセツト印
刷機の胴配列構造が開示されている。同実施例に
よるものは前記Ｂ−Ｂタイプの範ちゆうに入るも
のとみられるが、印刷ユニツト間に中間胴を用い
ることがないことを特徴としており、それだけコ
ンパクト化が図れることは一応認められる。 A second embodiment of the above-mentioned publication discloses a cylinder arrangement structure of a double-sided four-color printing offset printing machine that can perform four-color printing on both sides in one pass of a sheet. The device according to this embodiment is considered to fall within the range of the above-mentioned B-B type, but it is characterized by not using an intermediate cylinder between the printing units, and it is recognized that it can be made more compact.
しかしながら、中間胴を省略するために、全て
のゴム胴にくわえ爪を設けて枚葉紙の搬送を行う
構成がとられ、両面４色の刷り終りに至る迄にゴ
ム胴での紙葉の移し替えは８回行われることにな
つている（最後のゴム胴には爪がないが、替わり
にチエーンのグリツパでくわえられている）。従
つて見当精度に及ぼす影響はまだ大きいと云え
る。 However, in order to omit the intermediate cylinder, a configuration was adopted in which all blanket cylinders were provided with gripping claws to transport the sheets, and until the end of double-sided, four-color printing, the paper sheets were transferred on the blanket cylinders. It is supposed to be changed eight times (the last rubber body has no claws, but is instead held in place by a chain gripper). Therefore, it can be said that the influence on registration accuracy is still large.
なお、同公報中に胴逃しについての記載はない
が図面に見る胴配列構成では一見して分るよう
に、印刷機に必須の胴逃し時に各ゴム胴を離間さ
せる余地がなく、版胴方向への胴逃しを行うとす
ればインキ機構に関連する版胴を胴逃ししなけれ
ばならないものと思料される。従つてこの胴配列
では胴逃し機構が複雑化していることは疑う余地
がない。 Although there is no mention of cylinder release in the same publication, as can be seen at a glance from the cylinder arrangement shown in the drawing, there is no room to separate the blanket cylinders for cylinder release, which is essential for printing presses, and the direction of the plate cylinder is If cylinder relief is to be carried out, it is thought that the plate cylinder associated with the inking mechanism must be relieved. Therefore, there is no doubt that this barrel arrangement complicates the barrel release mechanism.
本発明は上記事情のもとに提案されたもので、
紙の反転なしの一回通しで枚葉紙の両面に各４色
のオフセツト印刷が行える印刷機であると同時
に、印刷時における紙のくわえ回数を従来のもの
よりより少くし、コンパクトにしかも操作性を良
くすること。更にはＢ−Ｂタイプの構成でなく圧
胴（ブランケツトを張る必要のない胴）と転写胴
（ゴム胴）との間で印刷が行われるような胴配列
のものを廉価に提供しようとするものである。
The present invention was proposed under the above circumstances.
This is a printing machine that can perform offset printing in each of four colors on both sides of a sheet in a single pass without reversing the paper, and at the same time, the number of times the paper is gripped during printing is reduced compared to conventional machines, making it compact and easy to operate. Improving sex. Furthermore, instead of the B-B type configuration, we aim to provide at a low price a cylinder arrangement in which printing is performed between an impression cylinder (a cylinder that does not need to be covered with a blanket) and a transfer cylinder (a rubber cylinder). It is.
本発明は前記の目的を達成するために、中間胴
のない胴配列の印刷部を形成し、かつ、給紙装置
によつて供給される枚葉紙が、下方より上方に、
つまり、縦に移送されるように構成してコンパク
ト化を計つたものである。
In order to achieve the above-mentioned object, the present invention forms a printing section with a cylinder arrangement without an intermediate cylinder, and the sheets fed by the paper feeder are arranged so that the sheets are fed from the bottom to the top.
In other words, it is designed to be compact by being configured to be transported vertically.
すなわち、直径の等しい版胴とゴム胴各２本
と、これ等胴の３倍直径からなる共通の圧胴１本
の５胴で構成する５胴型の印刷ユニツトを４組設
ける。上記５胴型印刷ユニツトは、前記の版胴と
ゴム胴を横に並べて配列するとともに、上下２段
に間隔をおいて配置し、この上下の両ゴム胴に圧
胴を連接させて構成する。しかして、この５胴型
印刷ユニツト４組は、２組ずつ前記圧胴に対する
上下２本のゴム胴の連接する方位が左右逆である
ように構成してある（このように例えば左右の手
袋にみるような関係配置にあるものを“勝手違
い”、又は、“反対勝手”と称す）。前記勝手違い
の印刷ユニツトは、交互に、かつ、その圧胴の軸
心を結ぶ直線が上下方向にジクザク状を呈するよ
うに各圧胴同志を連接し、全体として４色両面刷
りの印刷部を構成する。そして、前記印刷部の最
下方に位置する圧胴には枚葉紙を供給するための
給紙装置を、さらにまた、最上位の圧胴には排紙
装置を連結してなる構成である。 That is, four sets of five-cylinder printing units are provided, each consisting of two plate cylinders and two blanket cylinders with the same diameter, and one common impression cylinder with three times the diameter of these cylinders. The five-cylinder printing unit is constructed by arranging the plate cylinders and blanket cylinders side by side, and arranging them in two stages, upper and lower, with a gap between them, and an impression cylinder is connected to both the upper and lower blanket cylinders. The four sets of five-cylinder printing units are configured such that the direction in which the two upper and lower rubber cylinders connect with respect to the impression cylinder is opposite to the left and right. Those in a relational arrangement that looks like this are called “opposite hands” or “opposite hands”). In the above-mentioned opposite-hand printing unit, the impression cylinders are connected alternately and in such a way that the straight line connecting the axes of the impression cylinders forms a zigzag shape in the vertical direction, and the printing unit as a whole is capable of four-color double-sided printing. Configure. The impression cylinder located at the lowermost part of the printing section is connected to a paper feeder for supplying sheets, and the uppermost impression cylinder is connected to a paper ejecting apparatus.
上記の構成によれば、圧胴同志が上下方向にジ
グザグ状を呈して連接しているので、最下方の圧
胴くわえ爪に給紙された枚葉紙は、印刷機の回転
に伴い各印刷ユニツトを通過して順次上方に移送
され排紙装置へと排出される。ユニツト間の枚葉
紙の移送は圧胴同志のくわえ爪で行われる。最下
方の印刷ユニツトでは、先づ紙葉の表面に２色印
刷が行われ、次ぎのユニツトで裏面に２色、その
上方の第３のユニツトで更に表面に２色が加えら
れ計４色の印刷がなされ、最終ユニツトでは裏面
に２色が加えられ、こゝに表裏４色刷りの印刷が
完成するようになつている。枚葉紙はこの間４回
圧胴くわえ爪によつて把持されることになる。
According to the above configuration, since the impression cylinders are connected to each other in a zigzag shape in the vertical direction, the sheet fed to the lowermost impression cylinder gripping claw is transferred to each printing press as the printing press rotates. The paper passes through the unit, is sequentially transferred upward, and is ejected to a paper ejection device. Transfer of sheets between units is carried out by the grippers of the impression cylinders. The bottom printing unit first prints two colors on the front side of the sheet, the next unit prints two colors on the back side, and the third unit above prints two more colors on the front side, making a total of four colors. Printing is done, and in the final unit, two colors are added to the back side, thus completing a four-color print on both sides. During this period, the sheet is gripped by the impression cylinder gripper four times.
添付図面は、本発明の要部を示す側面概要図で
あつて、その１実施例を示す。
The accompanying drawings are schematic side views showing essential parts of the present invention, and show one embodiment thereof.
図面において、数字１は８本の版胴を示し、２
は８本のゴム胴をそれぞれ示す。版胴１とゴム胴
２は等しい直径を有する。そしてこれ等版胴１と
ゴム胴２は横向きに配列されたもの２対で１組を
なしている。３は４本の圧胴を示す。なお、各圧
胴には、周面３等分位置に図示しないくわえ爪が
装置されている。前記２対の版胴とゴム胴は間隔
をおいて配置され、これに前記圧胴３が共通の圧
胴として連接し、これ等５胴で２色刷りの印刷ユ
ニツトが構成されている。前記の印刷ユニツトは
Ａ、Ｂ、Ｃ、Ｄと４組設けられ、印刷ユニツト
Ａ、印刷ユニツトＣは版胴１とゴム胴２の圧胴３
に対する配置が左側にあつて同一態様である。ま
た、印刷ユニツトＢと印刷ユニツトＤとは、その
版胴１とゴム胴２が圧胴３に対し右側にあつて、
前記態様のものと同様構成ではあるが、勝手違い
におかれている。そして、図面に明示されるよう
に各勝手違い印刷ユニツトは交互に、しかも、圧
胴３同志がジグザグ状を呈して連接され１体的に
まとめられて、両面４色刷りの印刷部胴配列が構
成されている。 In the drawings, the number 1 indicates 8 plate cylinders, 2
shows eight rubber cylinders, respectively. The plate cylinder 1 and the blanket cylinder 2 have the same diameter. Two pairs of the plate cylinder 1 and the blanket cylinder 2 are arranged horizontally to form one set. 3 indicates four impression cylinders. Each impression cylinder is provided with gripping claws (not shown) at three equal positions on the circumference. The two pairs of plate cylinders and blanket cylinders are arranged at intervals, and the impression cylinder 3 is connected to them as a common impression cylinder, and these five cylinders constitute a two-color printing unit. There are four sets of the above-mentioned printing units A, B, C, and D. Printing unit A and printing unit C have printing cylinder 1 and impression cylinder 3 of blanket cylinder 2.
The arrangement is on the left side and is in the same manner. Furthermore, printing unit B and printing unit D have their plate cylinder 1 and blanket cylinder 2 on the right side of the impression cylinder 3,
Although the structure is similar to that of the above embodiment, it is placed in opposite directions. As clearly shown in the drawing, each of the different printing units is arranged alternately, and three impression cylinders are connected in a zigzag pattern and combined into one unit, forming a printing section cylinder arrangement for double-sided, four-color printing. has been done.
Ｅは給紙装置の１例であつて以下の構成からな
る。４は周知の枚葉紙のフイダーで、５はフイダ
ーに積まれた枚葉紙。６は周知のスインググリツ
パ機構を略示したもの。このスインググリツパ６
は、フイダー４で給送され給紙板７上に停止する
枚葉紙を、往復円弧運動しながら回転中の給紙胴
８に引渡たすためのものである。９，１０，１１
は公知のチエーン搬送機構を前記同様に略示した
もので、前記給紙胴８との接点で、図示されない
給紙胴８のくわえ爪に保持されている枚葉紙を、
チエーンに付設されている図示されないくわえ爪
でくわえとり、印刷部最下位の圧胴３に正確に引
渡たすように構成されている。なお、前記９，１
０は版胴の２倍直径に形成したチエーン１１駆動
用のスプロケツトを示す。 E is an example of a paper feeding device and has the following configuration. 4 is a well-known sheet feeder, and 5 is a sheet stacked in the feeder. 6 schematically shows a well-known swing gripper mechanism. This swing gripper 6
is for delivering the sheet fed by the feeder 4 and stopped on the paper feed plate 7 to the rotating paper feed cylinder 8 while making a reciprocating circular arc movement. 9, 10, 11
1 schematically shows a known chain conveyance mechanism in the same manner as above, in which a sheet of paper held by a gripping claw of the paper feed cylinder 8 (not shown) is held at a contact point with the paper feed cylinder 8.
It is configured so that it is gripped by gripping claws (not shown) attached to the chain and accurately delivered to the impression cylinder 3 at the lowest position in the printing section. In addition, the above 9.1
0 indicates a sprocket for driving the chain 11 formed to have twice the diameter of the plate cylinder.
Ｆは排紙装置を略示したもので、周知のチエー
ンデリバリ装置である。１２は図示しない周知の
くわえ爪が装置されているチエーンであつて、１
３はスプロケツト。また、１４は排紙装置Ｆによ
り排紙され、堆積せしめられている印刷済みの枚
葉紙を示す。 F schematically represents a paper discharge device, which is a well-known chain delivery device. 12 is a chain equipped with a well-known gripping claw (not shown);
3 is the sprocket. Further, numeral 14 indicates printed sheets which are discharged by the paper discharge device F and are piled up.
本発明は以上の構成であるから、枚葉紙は給紙
装置Ｅによつて、印刷部最下位の圧胴３に供給さ
れ、矢印の方向に太線で示す経路をたどつて、圧
胴から圧胴へと図示しないくわえ爪によりくわえ
替えられて、上方に移送され排紙装置Ｆへと送ら
れていく。枚葉紙はこの経路をたどる間に、両面
に４色刷りの印刷が行われる。すなわち、印刷ユ
ニツトＡの圧胴３の図示しないくわえ爪にくわえ
られた枚葉紙は、２本のゴム２、２間を通過する
とき、該ゴム胴から枚葉紙表面に画像が２色プレ
スされる。そして、印刷ユニツトＡから次の印刷
ユニツトＢの圧胴３にくわえとられた枚葉紙は、
今度はその印刷面が圧胴３周面に接するように反
転された格好となつて、裏面に対し前記同様２色
の印刷が行われる。このようにして各印刷ユニツ
ト間を通過した枚葉紙が、排紙装置Ｆのチエーン
１２の図示されないくわえ爪にくわえとられてい
くとき、枚葉紙の表裏両面には各４色の印刷が施
されるのである。 Since the present invention has the above-described configuration, the sheet is supplied to the impression cylinder 3 at the lowest position in the printing section by the paper feeder E, and from the impression cylinder follows the path shown by the bold line in the direction of the arrow. The sheet is gripped by gripping claws (not shown) on the impression cylinder, transported upward, and sent to the sheet discharge device F. While the sheet follows this path, it is printed in four colors on both sides. That is, when a sheet of paper held by a gripping claw (not shown) of impression cylinder 3 of printing unit A passes between two rubber bands 2, 2, an image is printed in two colors on the surface of the sheet from the rubber cylinder. be done. Then, the sheet that is taken from printing unit A to the impression cylinder 3 of the next printing unit B is
This time, the printing surface is turned over so that it is in contact with the peripheral surface of the impression cylinder 3, and two-color printing is performed on the back surface in the same manner as described above. When the sheet that has passed between the printing units in this way is grabbed by the unillustrated gripping claws of the chain 12 of the paper delivery device F, each of the four colors is printed on both the front and back sides of the sheet. It will be administered.
添付図面の本発明構成になるものにつき、更に
具体的数字をあげて説明すると、印刷すべき枚葉
紙のサイズを、例えば、菊半截判（469mm×636
mm）程度の比較的小さい組寸法のものを対象に実
施する場合、胴径はそれなりに小さくて済むか
ら、圧胴を縦方向に積み上げる構成となしても、
ジグザグ状に配列したことと相俟つて、通常の社
屋に支障のない程度の高さに収めることができる
ので好都合である。因みに、菊半截判を対象とし
たとき、版胴およびゴム胴の直径を仮りに200mm
φに設定したとする。そして、添付図面記載のよ
うに版、ゴム、圧３胴のなす角（胴角度）αを
142゜近傍にとり、さらに、各版胴同志の心間距離
をすべて等しくなるように設定するならば、機械
の全高はベツドを含めても2.6ｍ程度に収めるこ
とができ、小工場の社屋でも使用し得るコンパク
トなものとして提供できる。また、前記の構成に
したとき、版胴周面間の距離も30cm程あるので、
作業に支障をきたすことはない。 To explain the configuration of the present invention shown in the attached drawings using more specific numbers, the size of the sheet to be printed is, for example, 469 mm x 636 mm.
When performing this on relatively small sets of size (about 2 mm), the cylinder diameter can be relatively small, so even if the impression cylinders are stacked vertically,
Coupled with the zigzag arrangement, it is convenient because it can be accommodated at a height that does not interfere with normal company buildings. By the way, when we are targeting Kikuhankiban, we will temporarily set the diameter of the printing cylinder and rubber cylinder to 200mm.
Suppose that it is set to φ. Then, as shown in the attached drawing, the angle (body angle) α formed by the plate, rubber, and pressure cylinder is
If the distance between the centers of each plate cylinder is set to be around 142°, and the distance between the centers of each plate cylinder is set to be the same, the total height of the machine including the bed can be kept at around 2.6m, making it suitable for use even in small factory buildings. It can be provided as a compact device. In addition, when using the above configuration, the distance between the circumferential surfaces of the plate cylinders is approximately 30 cm, so
It will not interfere with your work.
次に、胴の着脱機構（いわゆる胴逃し）につい
て付記すると、前例のように、胴の直径を200mm
φとするとき、巻付角度（胴の円周面に469mm長
の紙を巻付けたときのその円弧の端部と、胴の中
心とを結んだときに形成される角度）は約270゜と
なる。この例のように、巻付角度が大きく、胴角
度も142゜と大きい場合の“胴逃し”は、ゴム胴の
支持に多重の偏心軸受けを用い、それぞれの偏心
軸受けを所定のタイミングで回動させ、ゴム胴を
版胴および圧胴から各個別に着脱させれば良く、
ヤレ（損紙）を出すおそれはない（特公昭44−
9054号公報参照）。 Next, I would like to add about the mechanism for attaching and detaching the torso (so-called torso release).As in the previous example, the diameter of the torso is 200 mm.
When φ, the wrapping angle (the angle formed when the end of the arc when a 469 mm long paper is wrapped around the circumferential surface of the cylinder and the center of the cylinder) is approximately 270°. becomes. As in this example, when the winding angle is large and the body angle is as large as 142°, "body release" uses multiple eccentric bearings to support the rubber cylinder, and each eccentric bearing is rotated at a predetermined timing. The rubber cylinder can be attached and detached from the printing cylinder and the impression cylinder individually.
There is no risk of producing waste paper.
(See Publication No. 9054).
以上、実施例につき詳細に説明したが、本発明
は前述の実施例の胴径に拘束されることなく、胴
径を任意に選択できるものであり、対象印刷紙寸
法も、菊半截判に限定されるべきものでもない。 The embodiments have been described in detail above, but the present invention is not limited to the barrel diameter of the above-mentioned embodiments, and the diameter of the barrel can be arbitrarily selected, and the target printing paper size is also limited to the chrysanthemum size. It's not something that should be done.
なお、図中２点鎖線で示される部分において、
１５は印刷機本体のフレーム。１６は図示しない
インキング部が装置されているインキングフレー
ムである。また、湿し水装置は各版胴の下方に装
置されるが図示は省略した。そしてまた、１８は
給紙フレーム、１９はベツド、２０はデリバリフ
レーム等をそれぞれ示したものである。 In addition, in the part indicated by the two-dot chain line in the figure,
15 is the frame of the printing press body. Reference numeral 16 denotes an inking frame in which an inking section (not shown) is installed. Further, a dampening water device is installed below each plate cylinder, but is not shown. Further, 18 indicates a paper feed frame, 19 a bed, 20 a delivery frame, etc.
次に、本発明の他の実施例について説明する
が、容易に理解できるので添付図面を利用し特に
図示はしない。添付図面に前記実施例において
は、各圧胴３の垂直方向中心間距離ａ，ｂ，ｃは
等間隔に形成され、更に図で示す左側において
も、右側においても各版胴の心間距離、および、
ゴム胴心間距離が同一になるよう配置されたもの
が示されているが、このようにすれば、ゴム胴の
偏心軸受けその他の各種部材が共通の部材として
使用できるので好ましい。しかしながら、本発明
はこれに特定されるものでなく、図中Ｌで示され
る側の、版胴心間距離ｅ，ｆを例にとつて述べる
と、版胴心間距離ｆと、各印刷ユニツト間に形成
される版胴心間距離ｅが必ずしも同一でなくと
も、またゴム胴間距離が多少版胴間距離よりも広
く、つまり、胴角度が実施例のものより小さく形
成されていても良い。
Next, other embodiments of the present invention will be described, but since they can be easily understood, they will not be particularly illustrated using the accompanying drawings. In the embodiment shown in the accompanying drawings, the vertical center-to-center distances a, b, and c of each impression cylinder 3 are formed at equal intervals, and the center-to-center distance of each plate cylinder on both the left side and the right side shown in the figure, and,
Although the rubber cylinders are shown arranged so that the distance between their centers is the same, this is preferable because the eccentric bearing of the rubber cylinder and various other members can be used as a common member. However, the present invention is not limited to this. Taking the distances e and f between the plate cylinder centers on the side indicated by L in the figure as an example, the distance between the plate cylinder centers f and each printing unit will be explained. The distance e between the plate cylinder centers formed between them does not necessarily have to be the same, and the distance between the blanket cylinders may be somewhat wider than the distance between the plate cylinders, that is, the cylinder angle may be formed smaller than that of the example. .
本発明は中間胴を用いず、しかも圧胴が４本で
構成されているから４色両面刷りを行つても印刷
紙が胴のくわえ爪に把持される回数は僅かに４回
で前記公知例に比較して著しく少なく見当精度の
向上に有効である。しかも、供給された枚葉紙は
下方より上方へと移送されるようになしてあるの
で非常にコンパクトに提供できる。さらに、５胴
型の印刷ユニツト４組の構成が同じであるから部
材の共通化が図れ、廉価になし得る。また、各圧
胴をジグザグ状に連接しているので、印刷されて
いく枚葉紙が次の印刷に入る迄の時間が多くとれ
好適である。
Since the present invention does not use an intermediate cylinder and is composed of four impression cylinders, even when performing four-color double-sided printing, the number of times the printing paper is gripped by the gripping claws of the cylinder is only four times, compared to the known example described above. It is effective in improving registration accuracy. Moreover, since the supplied sheets are transported from the bottom to the top, they can be provided very compactly. Furthermore, since the configurations of the four sets of five-cylinder printing units are the same, parts can be shared and the cost can be reduced. In addition, since the impression cylinders are connected in a zigzag manner, it is preferable that there is a large amount of time until the sheet being printed is printed on the next sheet.
また、Ｂ−Ｂタイプの両面刷り印刷機と異な
り、ブランケツト間の印刷ではなく、いわば版・
ゴム・圧の３胴式のものであるからＢ−Ｂタイプ
に比較してツブレの良いシヤープな印刷が可能で
ある。 Also, unlike the B-B type double-sided printing machine, printing is not done between blankets, but between the plates, so to speak.
Since it is a three-cylinder type consisting of rubber and pressure, it is possible to print sharply with less blur compared to the B-B type.
添付図面は、本発明４色刷り枚葉オフセツト印
刷機の全体側面概要図で、その１実施例を示す。
１……版胴、２……ゴム胴、３……圧胴、Ａ，
Ｂ……同じ態様の５胴型の印刷ユニツト、Ｃ，Ｄ
……前記Ａ，Ｂの左右勝手違いとなつている５胴
型の印刷ユニツト。
The accompanying drawing is a schematic side view of a four-color sheet-fed offset printing press according to the present invention, and shows one embodiment thereof. 1... Plate cylinder, 2... Rubber cylinder, 3... Impression cylinder, A,
B...Five-cylinder printing unit in the same manner, C, D
...A five-cylinder printing unit with the right and left hands of the above A and B being different.
Claims (1)
胴２対を上下２段に間隔をおいて配置するととも
にこれ等胴の３倍直径からなりかつくわえ爪を具
備した圧胴を前記上下両ゴム胴に共通の圧胴とし
て連接させてなる５胴型の枚葉紙２色刷り印刷ユ
ニツトであつて、前記圧胴に対する前記の版胴お
よびゴム胴の関係位置が左右勝手違いになるよう
に配置したものを各２組ずつ設け、しかして、上
記勝手違い印刷ユニツトを上下方向に交互に配置
してその圧胴軸心を結ぶ直線がジグザグ状を呈す
るように各圧胴を連接した胴配列構造を有し、そ
の最下方に位置する前記圧胴には枚葉紙を供給す
るための給紙装置が、そしてさらに、最上位の圧
胴には排紙装置がそれぞれ連結されていることを
特徴とする両面４色刷りオフセツト印刷機。1 Two pairs of plate cylinders and rubber cylinders of equal diameter arranged side by side are arranged in two stages, upper and lower, with an interval between them, and an impression cylinder having a diameter three times that of these cylinders and equipped with a gripping claw is attached to both the upper and lower rubber cylinders. A five-cylinder type sheet-fed two-color printing unit in which cylinders are connected as a common impression cylinder, and the printing cylinder and the blanket cylinder are arranged so that the relative positions of the plate cylinder and the blanket cylinder with respect to the impression cylinder are opposite to each other. Two sets of each printing unit are provided, and a cylinder arrangement structure is constructed in which the above-mentioned reverse printing units are arranged alternately in the vertical direction and the impression cylinders are connected so that a straight line connecting the axis of the impression cylinders forms a zigzag shape. The impression cylinder located at the lowermost position is connected to a paper feeding device for feeding sheets, and the uppermost impression cylinder is connected to a paper ejecting device. Double-sided 4-color offset printing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17282883A JPS6064849A (en) | 1983-09-19 | 1983-09-19 | 4-color offset perfect printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17282883A JPS6064849A (en) | 1983-09-19 | 1983-09-19 | 4-color offset perfect printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6064849A JPS6064849A (en) | 1985-04-13 |
| JPH0321346B2 true JPH0321346B2 (en) | 1991-03-22 |
Family
ID=15949108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17282883A Granted JPS6064849A (en) | 1983-09-19 | 1983-09-19 | 4-color offset perfect printing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6064849A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6387234A (en) * | 1986-10-01 | 1988-04-18 | J M Insatsu Kikai Kk | Cylinder arrangement of perfecting multicolor offset press |
| JPH01138736U (en) * | 1988-03-16 | 1989-09-21 | ||
| DE58906399D1 (en) * | 1988-05-18 | 1994-01-27 | De La Rue Giori Sa | Convertible multicolour printing machine for perfecting, particularly banknotes. |
| EP0343104A3 (en) * | 1988-05-18 | 1990-08-08 | De La Rue Giori S.A. | Perfecting web-fed press, particularly for bank notes |
| JPH06940A (en) * | 1992-06-23 | 1994-01-11 | J P Ii Kk | Double-side four-color printing offset press |
| DE59803516D1 (en) * | 1997-04-12 | 2002-05-02 | Koenig & Bauer Ag | MULTICOLOR SHEET OFFSET PRINTING MACHINE WITH IMAGE AND CLEANING DEVICE AND PAPER-THICK ADJUSTMENT |
| JP2001096713A (en) * | 1999-09-30 | 2001-04-10 | Komori Corp | Printing machine |
| JP3586606B2 (en) * | 1999-12-28 | 2004-11-10 | リョービ株式会社 | Offset printing press |
| DE102009013328A1 (en) | 2009-03-16 | 2010-09-23 | Heidelberger Druckmaschinen Ag | Sheet processing printing press |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS506805A (en) * | 1973-05-31 | 1975-01-24 | ||
| JPS58147364A (en) * | 1982-02-05 | 1983-09-02 | エム・ア−・エヌ−ロ−ラント・ドルツクマシ−ネン・アクチエンゲゼルシヤフト | Offset rotary press for sheet of paper |
-
1983
- 1983-09-19 JP JP17282883A patent/JPS6064849A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS506805A (en) * | 1973-05-31 | 1975-01-24 | ||
| JPS58147364A (en) * | 1982-02-05 | 1983-09-02 | エム・ア−・エヌ−ロ−ラント・ドルツクマシ−ネン・アクチエンゲゼルシヤフト | Offset rotary press for sheet of paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6064849A (en) | 1985-04-13 |
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