JPS61263757A - Printing mechanism for offset rotary press - Google Patents
Printing mechanism for offset rotary pressInfo
- Publication number
- JPS61263757A JPS61263757A JP61055194A JP5519486A JPS61263757A JP S61263757 A JPS61263757 A JP S61263757A JP 61055194 A JP61055194 A JP 61055194A JP 5519486 A JP5519486 A JP 5519486A JP S61263757 A JPS61263757 A JP S61263757A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- printing mechanism
- offset rotary
- cylinder
- sheets
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
- B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders
Landscapes
- Rotary Presses (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、オフセット輪転印刷機用の印刷機構受あって
、版胴に所属する少なくとも１つのゴム胴を有しており
、ゴム胴にシートを介在してゴムブランケットが緊定さ
れている形式のものに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a printing mechanism for a rotary offset printing press, which has at least one blanket cylinder belonging to a plate cylinder, with a sheet interposed on the blanket cylinder. It relates to a type of rubber blanket that is tightened.
従来技術
前記形式の印刷機構は一般に公知である（例えば’ｊ
７ レンス−ｊｒ （Ｗａｌｅｎｓｋｉ ） ” Ｅｉ
ｎｆｉｊｈｒｕｎｇｉｎ ｄｅｎ ０ｆｆｓｅｔｄｒｕ
ｃｋ”）。PRIOR ART Printing mechanisms of the above type are generally known (e.g.
7 Lens-JR (Walenski)” Ei
nfijhrungin den 0ffsetdru
ck”).
輪転印刷機の作業速度の高い場合、印刷に関与する胴の
振動特性は印刷物に顕著に現れる。When the operating speed of a rotary printing press is high, the vibration characteristics of the cylinders involved in printing are noticeable in the printed matter.
周知のように、印刷機胴、特にゴム胴及び版胴は主に胴
溝の重なシ合う際に振動を生ぜしめる。As is well known, printing press cylinders, in particular blanket cylinders and plate cylinders, produce vibrations mainly when the cylinder grooves overlap.
印刷機胴並びに湿し装置及びインキ装置の駆動装置の歯
車の歯面転換に際しても同様の不都合な振動が生じる。Similar undesirable vibrations occur during tooth flank changes of the gear wheels of the printing press cylinder and of the drives of the dampening and inking units.
後に挙げる公報は振動を取除く、減衰若しくは振動の発
生を防止しようとする当業者の努力を示している：***
国特許第２６１３６８８号明細書、***国特許出願公告
第１１９３５１６号明細書、***国特許第１１９３５１
６号明細書及び東独国特許第１１０３３５号明細書。The publications mentioned below demonstrate the efforts of those skilled in the art to eliminate, dampen or prevent the occurrence of vibrations: West German Patent No. 2613688, West German Patent Application No. 1193516, West German Patent Application No. 1193516 Patent No. 119351
Specification No. 6 and East German Patent No. 110335.
しかしながら、従来十分な成果は得られなかった。特に
公知のすべての手段は直接に胴に施され、−面で製作費
を著しく高いものにしかつ他面ｆ各個々の機械及び速度
に対して曲げ振動の必要な修正をできないという欠点を
有している。However, sufficient results have not been obtained so far. In particular, all known measures have the disadvantage that they are applied directly to the shell, which on the one hand makes the production costs considerably high and on the other hand does not allow the necessary correction of bending vibrations for each individual machine and speed. ing.
発明が解決しようとする問題点
本発明の課題は、各印刷機械の振動の印刷物への影響を
取除く若しくは少なくとも減少させる手段を提供するこ
とである。Problem to be Solved by the Invention It is an object of the invention to provide means for eliminating or at least reducing the influence of the vibrations of each printing machine on the printed product.
問題点を解決するだめの手段
前記課題を解決するために本発明の手段では、シートが
周方向で見て異なる厚さであシ、各シートが印刷機構の
所望の作業速度に相応する回転数範囲に配属されており
、シートの厚さの異なる区分の寸法及び位置が各印刷機
械に対して個々に検出された振動特性に対応している。Means for Solving the Problems In order to solve the above problems, the invention provides that the sheets have different thicknesses in the circumferential direction, and that each sheet has a rotational speed corresponding to the desired working speed of the printing mechanism. The dimensions and positions of the different thickness sections of the sheet correspond to the vibration characteristics detected individually for each printing machine.
実施例
第１図に示した印刷機構は２つの版胴１，２を有し、各
版胴はそれぞれゴム胴３，４に当接せしめられる。この
ような印刷機胴配置フは印刷担体５、例えば巻取シ紙が
両側から印刷される。Embodiment The printing mechanism shown in FIG. 1 has two plate cylinders 1, 2, each of which is brought into contact with a blanket cylinder 3, 4, respectively. In such a printing press cylinder arrangement, the printing carrier 5, for example a web, is printed from both sides.
本発明は各印刷機械がそれぞれ特有の振動特性を有し、
さらに各個々の印刷機械においては回転数に関連した特
別な、すなわち個有の振動特性が生ぜしめられるという
認識に基づいている。これは同じ形式の種々異なる印刷
機構の異なる回転数で形成された印刷サンプルを調べる
ことによって証明されている。特に、インキの付着塵は
印刷機構のそのつど選ばれた作業速度によって位置及び
強さに応じて変化する。このような認識に基づき本発明
では緊定しようとするゴムブランケットのためにゴム胴
３，４の周方向フ見て異なる厚さのシート６．７，８．
９が設けられている。各個々の印刷機構に対しては異な
る回転範囲及び作業範囲のためにそれぞれ特別のシート
６〜９が形成される。これは、印刷サンプルにおいて印
刷ストライプの位置及び強度変化を検出しかつこれに関
連して使用されるシートの厚さを規定することによって
行われる。In the present invention, each printing machine has its own unique vibration characteristics,
Furthermore, it is based on the recognition that each individual printing machine has special, i.e. individual, vibration characteristics that are dependent on the rotational speed. This has been proven by examining print samples made at different rotational speeds of different printing mechanisms of the same type. In particular, the ink dust varies in position and intensity depending on the respectively selected operating speed of the printing mechanism. Based on this recognition, the present invention provides sheets 6, 7, 8, and 6, which have different thicknesses when viewed from the circumferential direction of the rubber cylinders 3, 4, for the rubber blanket to be tightened.
9 is provided. For each individual printing mechanism, special sheets 6 to 9 are formed for different rotational and working ranges. This is done by detecting the position and intensity variations of the printed stripes in the printed sample and defining the thickness of the sheet used in this connection.
第２のａ図に示すように、１箇所の厚い区分１０と薄い
区分１１とを有するシート６がある所定の回転数のため
に形成されている。厚い区分１０は例えば所定の回転数
範囲で印刷担体５を案内する印刷機胴（ここではゴム胴
３，４）が振動によって離れる箇所に位置せしめられる
。As shown in FIG. 2a, a seat 6 with one thick section 10 and one thin section 11 is designed for a certain rotational speed. The thick section 10 is located, for example, at a point where the printing press cylinders (here the blanket cylinders 3, 4) which guide the printing carrier 5 in a given rotational speed range are separated by vibrations.
印刷機胴が離れることによって押圧力の低下に基づき印
刷担体５への転写に際しインキ付着塵が後退させられる
。この箇所において、印刷機胴間の低下する圧力を補償
するようにシート６の厚い区分１０が作用する。第２の
す、ｃ及びｄ図に示したシート７．８．９は同じ形式１
それぞれ別の回転数のために別の振動特性を考慮して形
成されている。Due to the reduction in the pressing force due to the separation of the printing cylinders, the ink dust is pushed back during transfer onto the print carrier 5. At this point, the thick section 10 of the sheet 6 acts to compensate for the decreasing pressure between the printing press cylinders. Sheets 7.8.9 shown in figures 2, c and d are of the same type 1
They are designed with different vibration characteristics in mind for different rotational speeds.
発明の効果
本発明によシ、費用をかけて印刷機胴を加工することな
しに印刷機胴の各速度範囲の振動の不都合な作用が個別
に取除かれ、本発明のシートを用いて生ぜしめられる印
刷サンプルの質が著しく改善される。Effects of the Invention According to the invention, the disadvantageous effects of vibrations in each speed range of the printing press cylinder can be eliminated individually, without expensive processing of the printing press cylinder, and can be produced using the sheet according to the invention. The quality of printed samples is significantly improved.
第１図はオフセット輪転印刷機の概略的な側面図、第２
図はゴムブランケットの本発明に基づくシートの側面図
である。
１及び２・・・版胴、３及び壬・・・ゴム胴、５・・・
印刷担体、６，７，８及び９・・・シート、１ｏ及び１
１・・・区分。Figure 1 is a schematic side view of a rotary offset printing press;
The figure is a side view of a sheet according to the invention of a rubber blanket. 1 and 2... plate cylinder, 3 and tsubo... rubber cylinder, 5...
Print carrier, 6, 7, 8 and 9... Sheet, 1o and 1
1... Classification.
Claims (1)
に配属された少なくとも１つのゴム胴を有しており、ゴ
ム胴にシートを介在してゴムブランケットが緊定されて
いる形式のものにおいて、シート（６、７、８、９）が
周方向で見て異なる厚さであり、各シート（６、７、８
、９）が印刷機構の所望の作業速度に相応する回転数範
囲に配属されており、シートの厚さの異なる区分（１０
、１１）の寸法及び位置が各印刷機械に対して個々に検
出された振動特性に対応していることを特徴とする、オ
フセット輪転印刷機用の印刷機構。 ２、シート（６、７、８、９）が板紙、プラスチック、
金属若しくは類似のものから成つている特許請求の範囲
第１項記載の印刷機構。[Claims] 1. A printing mechanism for an offset rotary printing press, which has at least one blanket cylinder attached to a plate cylinder, and a rubber blanket is tightened with a sheet interposed on the blanket cylinder. In the type shown, the sheets (6, 7, 8, 9) have different thicknesses in the circumferential direction, and
, 9) are assigned to the rotational speed range corresponding to the desired working speed of the printing mechanism, and the divisions (10
, 11), the dimensions and position of which correspond to vibration characteristics detected individually for each printing machine. 2. Sheets (6, 7, 8, 9) are paperboard, plastic,
Printing mechanism according to claim 1, consisting of metal or the like.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3509045.6 | 1985-03-14 | ||
| DE3509045 | 1985-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61263757A true JPS61263757A (en) | 1986-11-21 |
Family
ID=6265117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61055194A Pending JPS61263757A (en) | 1985-03-14 | 1986-03-14 | Printing mechanism for offset rotary press |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0194616B1 (en) |
| JP (1) | JPS61263757A (en) |
| DE (1) | DE3672633D1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017189964A (en) * | 2016-04-15 | 2017-10-19 | 三菱重工印刷紙工機械株式会社 | Printing cylinder, printing machine, and blanket |
| JP2019127019A (en) * | 2018-01-26 | 2019-08-01 | 三菱重工機械システム株式会社 | Blanket, blanket cylinder and printer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9002111U1 (en) * | 1990-02-22 | 1990-04-19 | MAN Roland Druckmaschinen AG, 6050 Offenbach | Filler piece for use in the pit of a printing cylinder in a web-fed rotary printing press |
| DE4436973C2 (en) * | 1993-12-21 | 2003-06-26 | Heidelberger Druckmasch Ag | Blanket with varying profile and process for its manufacture |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1193516B (en) * | 1962-06-22 | 1965-05-26 | Planeta Veb Druckmasch Werke | Offset cylinder |
| GB1065727A (en) * | 1963-11-28 | 1967-04-19 | Harris Intertype Corp | Improvements in or relating to printing presses |
-
1986
- 1986-03-07 DE DE8686103094T patent/DE3672633D1/en not_active Expired - Lifetime
- 1986-03-07 EP EP86103094A patent/EP0194616B1/en not_active Expired - Lifetime
- 1986-03-14 JP JP61055194A patent/JPS61263757A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017189964A (en) * | 2016-04-15 | 2017-10-19 | 三菱重工印刷紙工機械株式会社 | Printing cylinder, printing machine, and blanket |
| JP2019127019A (en) * | 2018-01-26 | 2019-08-01 | 三菱重工機械システム株式会社 | Blanket, blanket cylinder and printer |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0194616A2 (en) | 1986-09-17 |
| EP0194616A3 (en) | 1987-10-07 |
| DE3672633D1 (en) | 1990-08-23 |
| EP0194616B1 (en) | 1990-07-18 |
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