EP0403433B1 - Dispositif de mise en tension des plaques d'impression montées sur un cylindre d'une machine d'impression taille-douce - Google Patents
Dispositif de mise en tension des plaques d'impression montées sur un cylindre d'une machine d'impression taille-douce Download PDFInfo
- Publication number
- EP0403433B1 EP0403433B1 EP90810417A EP90810417A EP0403433B1 EP 0403433 B1 EP0403433 B1 EP 0403433B1 EP 90810417 A EP90810417 A EP 90810417A EP 90810417 A EP90810417 A EP 90810417A EP 0403433 B1 EP0403433 B1 EP 0403433B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- screws
- sectors
- axially
- annular sectors
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
- B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F1/00—Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
- B41F1/26—Details
- B41F1/28—Sheet-conveying, -aligning or -clamping devices
Definitions
- the present invention relates to a device for tensioning the printing plates mounted on a cylinder formed by a ferrule or a plate cylinder of an intaglio printing machine.
- plate cylinder In the field of printing, the term “plate cylinder” is understood to mean the assembly composed of the body of the cylinder which carries printing plates and of the shaft on which this body of the cylinder is integral, and under the term “ferrule” only the cylindrical tube or mantle without a shaft. Plate cylinders are generally used in sheet printing machines and must be installed as a unit in the machine bearings, respectively disassembled completely from the machine by removing the bearing shaft, while the ferrules , generally used in coil printing machines, can be simply mounted on the shaft, respectively removed from their shaft, the printing plates being mounted on the ferrule before it is mounted on the shaft.
- this cylinder which carries the plates must meet certain very strict requirements which guarantee, on the one hand, the sharpness of the impression and, on the other hand, the perfect register between the different images.
- the present invention provides a device complementary to the known devices making it possible to fix and also tension axially the intaglio printing plates on a plate cylinder or on a ferrule while avoiding possible deformation due to the reasons mentioned above.
- the method according to the invention is characterized by the characteristic clause of claim 1.
- the advantages of this device are the following: by fixing the lateral ends of the printing plates mounted on a cylinder, on annular sectors arranged on either side of the lateral sides of the cylinder, one ensures, on the one hand, a better resistance of the printing plates and on the other hand, an axial tension is applied to the plates precisely making it possible to counteract the aforementioned drawbacks, namely the deformations of the plates mounted by means applying peripheral tensions, these deformations being able to have during printing due to the high contact pressure.
- elastic means can be provided between the annular sectors and the lateral sides of the cylinder, these elastic means applying thrust forces tending to move the annular sectors of the cylinder axially.
- These elastic means which are in particular formed by coil springs serve to maintain the axial tension of the printing plates during the operation of the printing machine if there occurs, because of the deformations mentioned, a certain enlargement of the plates .
- the device according to the invention can be used both for fixing intaglio plates on a ferrule, therefore, in general, for printing on the spool, and on a plate cylinder, therefore, in general, for printing. leaf.
- Figure 1 is a side view of a ferrule provided with a device according to the invention.
- Figure 2 is a partial view, in section along the line I-I of Figure 1 showing the end of this ferrule.
- Figure 3 is an enlarged detailed view of a recess on the plate.
- Figures 1 and 2 show a ferrule 1 plate holder on which are mounted three printing plates 2, 3, 4 held and tensioned in the peripheral direction so that the adjacent ends of each plate are edge to edge to form a continuous surface.
- the fixing and tensioning of these plates in the peripheral direction is carried out by known or proposed means such as, for example, those described in the introduction.
- the ferrule is provided on either side with three annular sectors 5, 6, 7, of the same diameter as it, and being in the extension of its lateral faces, a sector for each lateral edge of each plate 2, 3 , 4.
- Each sector 5, 6, 7 is mounted axially on the shell by regularly distributed screws 16 which are screwed into axial recesses 17 blind and tapped in the side of the shell 1, while they freely cross sectors 5, 6 , 7 so that each sector 5, 6, 7 is axially movable relative to the ferrule 1.
- the holding in the radial direction and the guiding of the sectors are ensured by guides 18, regularly distributed, formed by pins driven in axial blind passages 14 of the lateral face of the ferrule 1, their dimension allowing them to slide in holes provided in each sector 5, 6, 7.
- screws 25 Arranged alternately with the screws 16 and the guides 18 are screws 25 for positioning and lateral tension of the plates. These screws 25 are screwed only on sectors 5, 6, 7 in passages axial threaded 26 thereof, and penetrate into blind and opposite housings 20 and 21 extending axially, on the one hand, in the shell 1 and on the other hand, in the sectors 5, 6, 7 facing the ferrule. These screws 25 abut against the bottom of the housings 20 and allow the axial positioning of the printing plates and the adjustment of the axial tension applied to them via said annular sectors. In these blind housings 20, 21 are housed coil springs 19 surrounding the screws 25 and pressing against the bottom of the housings 20 and 21.
- the printing plates 2, 3, 4 on the annular sectors 5, 6, 7 have on their peripheral periphery tapped holes 8, drilled radially, the upper part 9 of which is conical and into which can be screwed screws 23 with countersunk heads.
- the lateral ends of the printing plates 2, 3, 4 lying at the height of the sectors 5, 6, 7 have recesses 24 which take place in the conical parts 9 of the holes 8.
- recess is meant a stamped shape in the plate serving as a housing for the head of the screws which thus do not protrude from the plate, as illustrated in FIG. 3.
- the printing plates have undergone, because of the deformations mentioned, an enlargement such as under the force of the coil springs exerting a permanent tension on the plates the screws 25 no longer abut at the bottom of the housings 20, after stopping the machine, all the screws 25 are tightened to make up for the play.
- a cylinder is provided with a single plate, under these conditions a closed annular sector is used, therefore a ring, for each lateral edge of the plate.
- the device according to the invention applies as an additional means of tensioning for all the installations which allow fixing and tensioning of the plates in the peripheral direction, with the exception, of course, of the ferrules on which the plates are glued .
- the invention is not limited to the embodiments described, but also covers the many possible variants.
- the invention also applies to plate cylinders having cylinder sectors separated by ditches where individual plates are fixed and adjusted on the sectors of the cylinder.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Rotary Presses (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH223389 | 1989-06-14 | ||
CH2233/89 | 1989-06-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0403433A1 EP0403433A1 (fr) | 1990-12-19 |
EP0403433B1 true EP0403433B1 (fr) | 1994-08-10 |
Family
ID=4228975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90810417A Expired - Lifetime EP0403433B1 (fr) | 1989-06-14 | 1990-06-08 | Dispositif de mise en tension des plaques d'impression montées sur un cylindre d'une machine d'impression taille-douce |
Country Status (12)
Country | Link |
---|---|
US (1) | US5070785A (ja) |
EP (1) | EP0403433B1 (ja) |
JP (1) | JP2806601B2 (ja) |
KR (1) | KR0169481B1 (ja) |
CN (1) | CN1021311C (ja) |
AT (1) | ATE109726T1 (ja) |
AU (1) | AU629358B2 (ja) |
CA (1) | CA2018572A1 (ja) |
DD (1) | DD295124A5 (ja) |
DE (1) | DE69011427T2 (ja) |
RU (1) | RU1816269C (ja) |
UA (1) | UA12867A (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4420971C1 (de) * | 1994-06-16 | 1995-07-20 | Roland Man Druckmasch | Verfahren und Vorrichtung zum Aufziehen flexibler Druckformen |
CN109130457B (zh) * | 2018-11-01 | 2023-11-14 | 大连巨通塑料制品有限公司 | 凹版印刷机版辊密封装置 |
CN112406267B (zh) * | 2020-11-23 | 2022-08-16 | 太仓仁飞模具有限公司 | 一种新型纺织印刷辊 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1860765A (en) * | 1928-12-11 | 1932-05-31 | Rembrandt Intaglio Printing Co | Printing and other cylinder and means for securing sheets thereto |
US2005885A (en) * | 1932-01-23 | 1935-06-25 | Westinghouse Electric & Mfg Co | Roll |
US2538499A (en) * | 1946-04-30 | 1951-01-16 | Henry F Benoit | Cylinder coupling |
US3016010A (en) * | 1959-08-20 | 1962-01-09 | Cottrell Company | Printing press plate clamping means for prebent wrap around printing plates of soft material |
US3141405A (en) * | 1961-10-09 | 1964-07-21 | Champlain Company Inc | Clamp for flexible printing plate |
US3237558A (en) * | 1962-06-04 | 1966-03-01 | Fas Clip Corp | Printing blanket and fastener means therefor |
CH397725A (de) * | 1962-12-21 | 1965-08-31 | Maerk Werner | Vorrichtung für die auswechselbare Montage von Klischees auf Druckwalzen, insbesondere für Anilindruck |
FR1389192A (fr) * | 1964-03-13 | 1965-02-12 | Stork & Co Nv | Pochoir cylindrique pour machine à imprimer des films ou analogues |
US3205814A (en) * | 1964-09-24 | 1965-09-14 | William F Huck | Rotary cylinder construction of removable shell type |
GB1130570A (en) * | 1965-09-03 | 1968-10-16 | Hamada Printing Press | A mechanism for mounting wrap-around plates on a printing cylinder |
US3456588A (en) * | 1967-03-22 | 1969-07-22 | John C Motter Printing Press C | Printing press plate cylinder lockup |
JPS5832707B2 (ja) * | 1977-06-10 | 1983-07-14 | キヤノン株式会社 | 弾性ロ−ラ− |
US4864704A (en) * | 1988-04-06 | 1989-09-12 | Day International Corporation | Interlocking rubber-jacketed end cap and a rubber-covered roll |
-
1990
- 1990-05-31 US US07/531,258 patent/US5070785A/en not_active Expired - Fee Related
- 1990-06-08 CA CA002018572A patent/CA2018572A1/en not_active Abandoned
- 1990-06-08 EP EP90810417A patent/EP0403433B1/fr not_active Expired - Lifetime
- 1990-06-08 DE DE69011427T patent/DE69011427T2/de not_active Expired - Fee Related
- 1990-06-08 AT AT90810417T patent/ATE109726T1/de not_active IP Right Cessation
- 1990-06-13 RU SU904830557A patent/RU1816269C/ru active
- 1990-06-13 JP JP2152921A patent/JP2806601B2/ja not_active Expired - Lifetime
- 1990-06-13 UA UA4830557A patent/UA12867A/uk unknown
- 1990-06-13 AU AU57092/90A patent/AU629358B2/en not_active Ceased
- 1990-06-14 DD DD90341643A patent/DD295124A5/de not_active IP Right Cessation
- 1990-06-14 CN CN90104436A patent/CN1021311C/zh not_active Expired - Fee Related
- 1990-06-14 KR KR1019900008720A patent/KR0169481B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU1816269C (ru) | 1993-05-15 |
CN1021311C (zh) | 1993-06-23 |
AU629358B2 (en) | 1992-10-01 |
AU5709290A (en) | 1990-12-20 |
KR910000361A (ko) | 1991-01-29 |
CA2018572A1 (en) | 1990-12-14 |
UA12867A (uk) | 1997-02-28 |
US5070785A (en) | 1991-12-10 |
JP2806601B2 (ja) | 1998-09-30 |
JPH0324960A (ja) | 1991-02-01 |
DE69011427D1 (de) | 1994-09-15 |
CN1049127A (zh) | 1991-02-13 |
KR0169481B1 (ko) | 1999-05-01 |
EP0403433A1 (fr) | 1990-12-19 |
DE69011427T2 (de) | 1995-03-23 |
ATE109726T1 (de) | 1994-08-15 |
DD295124A5 (de) | 1991-10-24 |
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