EP0741013A2 - Machine à imprimer rotative comprenant des cylindres porte-blanchets montés pivotant - Google Patents
Machine à imprimer rotative comprenant des cylindres porte-blanchets montés pivotant Download PDFInfo
- Publication number
- EP0741013A2 EP0741013A2 EP96810250A EP96810250A EP0741013A2 EP 0741013 A2 EP0741013 A2 EP 0741013A2 EP 96810250 A EP96810250 A EP 96810250A EP 96810250 A EP96810250 A EP 96810250A EP 0741013 A2 EP0741013 A2 EP 0741013A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- rubber
- cylinders
- units
- printing units
- 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.)
- Granted
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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
- B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines
Definitions
- the present invention relates to a rotary printing press with rubber-rubber printing units arranged essentially vertically one above the other.
- the height of the printing tower which is kept low by this H construction, has a disadvantageous effect on the accessibility of the components of the printing tower, in particular the cylinders and rollers. Only a low maintenance tunnel remains between the H-pressure units arranged one above the other, which can only be walked on by the operating personnel in a stooped posture. The same applies particularly to the accessibility of the bottom and top printing units of such a printing tower.
- a printing cylinder and its impression cylinder can be pivoted away from one another in such a way that an accessible space is formed between the cylinders of such a printing unit, namely the two rubber cylinders, which an operator can comfortably walk on, for example for the purpose of a roller exchange.
- At least every second one of the rubber-rubber printing units arranged one above the other has rubber cylinders which can be pivoted away from one another.
- the space created after the two rubber cylinders have been swiveled enables easy access.
- a particularly convenient access to all printing units of a printing tower is created by the fact that the rubber cylinders of all printing units of a printing tower can be pivoted away.
- the rubber-to-rubber printing units of a printing tower are either all arranged as "" -shaped or "V" -shaped cylinder bridges.
- a further advantage lies in the fact that the ink and the dampening solution for each printing unit are conveyed in the same direction, either counter to or with the force of gravity, to the respective blanket cylinder. This improves the uniformity of the color structure of the printing units with one another.
- FIG. 1 shows a printing tower 20 of a rotary printing press, which has four identical printing units 11, 12, 13 and 14 arranged one above the other.
- Each of these printing units 11 - 14 comprises a pair of printing and impression cylinders, namely blanket cylinders 2 and 4, their respective associated plate cylinders 3 and 5 and the plate cylinders 3 and 5 respectively subordinate inking and dampening units 6 and 7, of which only two are illustrated are shown.
- the rubber cylinders 2 and 4 of the four printing units 11-14 arranged one above the other can be pivoted away from one another. Representative of all printing units, only the rubber cylinders 2 and 4 of the lowermost printing unit 11 are shown in their pivoted-down position.
- the two blanket cylinders 2 and 4 are each about the axes of rotation of their assigned plate cylinders 3 and 5 pivoted from one another into the positions designated by 2 'and 4' in FIG. 1 approximately vertically above their respective plate cylinders 3 and 4.
- the space 23 is indicated in FIG. 1 as a rectangle and extends from the bottom 21 of the printing tower 20 to the second printing unit 12 arranged above the lowermost printing unit 11. Its width corresponds approximately to the clear distance between the two plate cylinders 3 and 5.
- the now positions or rooms available overall for maintenance and adjustment work are also indicated in FIG. 1.
- the personnel have access to the printing units from the outside, for example standing on the floor 21 or a vertically movable maintenance platform 31 of the printing tower 20.
- the intermediate space 23 formed according to the invention is now available with the same other freedom of movement.
- the cylinders and rollers of the printing units 11 - 14 forming the printing tower 20 all form "A" or "N" -shaped cylinder bridges.
- the largest possible, namely the highest possible, space 23 is formed by this uniform alignment of the cylinders and rollers, and on the other hand, the ink and dampening solution flow to all rubber cylinders 2 and 4 always takes place in the same direction.
- both advantages could also be achieved with printing units 11-14, which form "V" -shaped cylinder bridges. In this case, the ink transport would take place with the support of gravity instead of against it, as in the exemplary embodiment.
- FIG. 1 It can be seen from FIG. 1 that it is sufficient to form a space 23 which is easy to walk on if only every second one of the printing units 11-14, preferably the lowermost printing unit 11 and the next but one printing unit 13, has swiveling rubber cylinders 2 and 4.
- FIGS. 2 and 3 show a pressure tower 20 with pivotable rubber cylinders 2 and 4 (FIG. 2) and a pressure tower 20 according to the prior art (FIG. 3) with four pressure units arranged one above the other, which are arranged to form H-shaped cylinder bridges , shown.
- Eight single-color printing units are arranged in both printing towers 20, two printing units each forming a rubber-rubber printing unit.
- the cylinders and rollers of the printing tower 20 according to FIG. 2 are more easily accessible for maintenance and adjustment work.
- Only very low maintenance tunnels T remain free under and above the printing units according to FIG. 3 arranged in a conventional H-shape.
- These conventional maintenance tunnels T can be walked on horizontally or at most in a bent posture, which makes maintenance and adjustment work considerably more difficult. With the printing material web B drawn in, such work is impossible because of the printing material web crossing the maintenance tunnel T.
- the entire space 23 available by pivoting the rubber cylinders 2 and 4 can be kept almost entirely free.
- the drawn-in printing material web B is close to one side of the space 23, i.e. at a short distance from one of the plate cylinders 4 or 5 and the pivoted rubber cylinder 2 or 3.
- the web deflection rollers are to be arranged in the region of the intermediate space 23 formed in this way on one of the sides of this intermediate space 23, as can be seen in FIG. 4 using the example of two times 1 + 1 color production per double printing unit.
- the two printing towers 20, in accordance with FIGS. 2 and 3, are again placed next to one another for comparison purposes.
- the printing towers 20 are each configured for two times 1 + 1 color production per double printing unit.
- the printing units of the conventional printing tower according to FIG. 5 which are arranged in the form of H-shaped cylinder bridges, each is conceivable Guidance of the printing material webs B, - B, the accessibility of at least one of the two printing units, each forming a printing unit, is ensured only via the very uncomfortable low maintenance tunnel T.
- the lower printing units 11 and 13 of the two H-shaped cylinder bridges can only be worked from the outside in a stooped posture.
- each printing unit The free passage to the left and right of each printing unit is greatly reduced by the printing material web that runs in and out at the side.
- the top pair of rubber cylinders of each H-cylinder bridge are not accessible when the web is retracted, for example for changing plates or cleaning a rubber blanket.
- a corresponding effort is to be made by providing appropriate web shifting means, as indicated at 51 and 52, or other cylinder release devices.
- the printing material web is guided with the rubber cylinders 2 and 4 pivoted away as close as possible to one of the pivoted rubber cylinders, ie close to the sides of the intermediate space 23.
- this is achieved by correspondingly arranging the web deflection rollers before the web entry and are arranged behind the web outlet in or out of the printing units, the rubber cylinders 2 and 4 of which form the intermediate space 23 between them in the pivoted-down position 2 'and 4'.
- the two web deflection rollers 41 and 42 are indicated in FIG.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19516653A DE19516653C1 (de) | 1995-05-05 | 1995-05-05 | Rotationsdruckmaschine mit abschwenkbaren Gummizylindern |
| DE19516653 | 1995-05-05 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0741013A2 true EP0741013A2 (fr) | 1996-11-06 |
| EP0741013A3 EP0741013A3 (fr) | 1997-05-21 |
| EP0741013B1 EP0741013B1 (fr) | 1999-01-27 |
Family
ID=7761246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96810250A Expired - Lifetime EP0741013B1 (fr) | 1995-05-05 | 1996-04-19 | nachine à imprimer rotative comprenant des cylindres porte-blanchets montés pivotants |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5816157A (fr) |
| EP (1) | EP0741013B1 (fr) |
| DE (2) | DE19516653C1 (fr) |
| ES (1) | ES2128152T3 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156018B2 (en) | 2001-04-09 | 2007-01-02 | Koenig & Bauer Aktiengesellschaft | Printing couple in a printing machine with a pivotable transfer cylinder |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6186064B1 (en) * | 1998-05-22 | 2001-02-13 | Heidelberger Druckmaschinen Ag | Web fed rotary printing press with movable printing units |
| DE19833468C2 (de) * | 1998-07-24 | 2000-05-18 | Koenig & Bauer Ag | Druckwerke |
| DE10003290A1 (de) * | 2000-01-27 | 2001-08-02 | Roland Man Druckmasch | Offsetrotationsdruckmaschine mit übereinander angeordneten Brückendruckeinheiten |
| DE10150081B4 (de) * | 2001-10-10 | 2005-12-15 | Koenig & Bauer Ag | Rollenrotationsdruckmaschine |
| DE502005004466D1 (de) * | 2005-09-30 | 2008-07-31 | Gimaco Ing Ag | Rollenrotationsdruckmaschine |
| DE102010002615B4 (de) * | 2010-03-05 | 2020-01-09 | Koenig & Bauer Ag | Druckturm einer Druckmaschine und ein Verfahren zum Transport zumindest eines Bedruckstoffs durch einen in zumindest zwei Seitengestelle teilbaren Druckturm einer Druckmaschine |
| DE102010002613A1 (de) * | 2010-03-05 | 2011-09-08 | Koenig & Bauer Aktiengesellschaft | Druckturm einer Druckmaschine und ein Verfahren zur Bereitstellung einer Standfläche eines Druckturms einer Druckmaschine |
| JP7271992B2 (ja) * | 2019-02-18 | 2023-05-12 | コニカミノルタ株式会社 | プリンタ |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3289580A (en) * | 1964-08-04 | 1966-12-06 | Orville V Dutro | Roller support adjusting device |
| DE2234089C3 (de) * | 1972-07-08 | 1975-01-23 | Automatic Druckmaschinenfabrik Dr. W. Hinniger U. Soehne, 1000 Berlin | Offset-Rollen-Rotationsdruckmaschine |
| JPS55158969A (en) * | 1979-05-26 | 1980-12-10 | Tokyo Kikai Seisakusho:Kk | Multipurpose offset printing press |
| DE2929654A1 (de) * | 1979-07-21 | 1981-02-12 | Koenig & Bauer Ag | Druckwerkseinheit fuer offset-rollenrotationsdruckmaschinen |
| USRE34483E (en) * | 1986-05-14 | 1993-12-21 | Strachan Henshaw Machinery Limited | Processing paper and other webs |
| GB8611722D0 (en) * | 1986-05-14 | 1986-06-25 | Drg Uk Ltd | Processing paper & other webs |
| JPH0798389B2 (ja) * | 1988-07-22 | 1995-10-25 | リョービ株式会社 | ２つの印刷ユニットを持つオフセット印刷機 |
| JPH03189153A (ja) * | 1989-12-20 | 1991-08-19 | Mitsubishi Heavy Ind Ltd | オフセット輪転印刷機の多色刷ユニツト |
| JP2566897B2 (ja) * | 1992-07-29 | 1996-12-25 | 株式会社東京機械製作所 | 多色刷平版印刷機 |
| JP2585995Y2 (ja) * | 1992-10-01 | 1998-11-25 | 株式会社小森コーポレーション | 胴着脱装置 |
| US5337664A (en) * | 1993-04-08 | 1994-08-16 | Rockwell International Corporation | Printing press with blanket cylinder throw off apparatus and method |
| DE4408025A1 (de) * | 1994-03-10 | 1995-09-14 | Koenig & Bauer Ag | Druckwerk für eine Mehrfarbenrollenrotationsdruckmaschine |
-
1995
- 1995-05-05 DE DE19516653A patent/DE19516653C1/de not_active Expired - Fee Related
-
1996
- 1996-04-19 EP EP96810250A patent/EP0741013B1/fr not_active Expired - Lifetime
- 1996-04-19 ES ES96810250T patent/ES2128152T3/es not_active Expired - Lifetime
- 1996-04-19 DE DE59601207T patent/DE59601207D1/de not_active Expired - Fee Related
- 1996-05-03 US US08/642,627 patent/US5816157A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156018B2 (en) | 2001-04-09 | 2007-01-02 | Koenig & Bauer Aktiengesellschaft | Printing couple in a printing machine with a pivotable transfer cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| US5816157A (en) | 1998-10-06 |
| EP0741013B1 (fr) | 1999-01-27 |
| DE59601207D1 (de) | 1999-03-11 |
| EP0741013A3 (fr) | 1997-05-21 |
| DE19516653C1 (de) | 1996-09-19 |
| ES2128152T3 (es) | 1999-05-01 |
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