WO1995015854A1 - Vorrichtung sowie verfahren zum herstellen von bedruckten blättern - Google Patents
Vorrichtung sowie verfahren zum herstellen von bedruckten blättern Download PDFInfo
- Publication number
- WO1995015854A1 WO1995015854A1 PCT/EP1994/004062 EP9404062W WO9515854A1 WO 1995015854 A1 WO1995015854 A1 WO 1995015854A1 EP 9404062 W EP9404062 W EP 9404062W WO 9515854 A1 WO9515854 A1 WO 9515854A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- curvature
- web
- cooling roller
- radius
- transport direction
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F25/00—Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/34—Apparatus for taking-out curl from webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/10—Means using fluid made only for exhausting gaseous medium
- B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
Definitions
- the invention relates to an apparatus and a method for producing printed sheets and an apparatus for performing the method according to the preamble of the main claim.
- a disadvantage of these known devices and methods is the waves present in the finished product, the individual sheets. This wave formation has often been the subject of investigations, however, despite all efforts to date, the waves generated in web offset have in principle not been eliminated, but at best their amplitude has been reduced (see FOGRA, report 4.035 from 1989), based on the idea that that as a result of the water leakage when drying the web in combination with the web tension, a ripple is formed, an attempt being made to eliminate these so-called climatic or draft waves by subsequent rewetting of the dried and cooled web. These attempts have only met with moderate success.
- the invention has for its object to develop a generic device according to the preamble of the main claim and a method so that smooth, undulating sheets can be obtained.
- Main claim further develop so that smooth, undulating leaves can be obtained.
- the printed web is deflected once or several times in each case in opposite directions of curvature, preferably by blowing bars, immediately before it strikes the first cooling roll by means of a spreading device for the web.
- a Coanda plate can also be arranged outside the web with its extension but parallel to the web, air being able to be blown into the gap between it and the web by means of an additionally attached nozzle, thereby bringing the web to the Coand. a plate is pulled without touching it.
- Direction and arrangement of these Coanda plates is expediently carried out in succession on the top and bottom of the paper web. It is also possible to use several small Coanda plates which are attached next to one another or offset in the direction of paper travel, and which are also slightly convex or concave in longitudinal section parallel to the transport direction.
- SPARE SHEET (REGEL26) is impressed on the roller by the other radius of curvature of the shaft, on the other hand is stabilized by the cooling effect on the pressure coating. This problem is solved in a surprisingly simple manner by the teaching according to the invention.
- a device is known (DE 3128430 C2, FIG. 3) in which the web is deflected with a first radius of curvature and its first direction of curvature with a second radius of curvature and a second direction of curvature opposite to the first, before it hits the at least first cooling roll.
- this measure serves as a path compensation device for the web due to the adjustability of the calender rollers of the cooling unit.
- this path compensation device can be attached in front of or behind the cooling unit and, in addition, the arrangement of the direction of curvature of the deflection in front of the first cooling roller is irrelevant and is purely coincidental.
- JP2-59348 (A) in Patent Abstracts of Japan M-974 May 16, 1990, Volume 14 / No. 231), which has a previously described deflection in front of the first cooling roll.
- this device serves to provide a laminar layer of solvent which is transported along by the web but also peel off dust and the like by means of air blown in the opposite direction to the transport, quite apart from this, since for this known purpose the arrangement of the directions of curvature could also be reversed and can therefore also be described as random.
- cold air can be used for pre-cooling before cooling. It has also proven to be advantageous if a negative pressure is generated in the area of the inlet nip between the web and the first cooling roll.
- the effect achieved according to the invention is also beneficial if the web on its side facing away from the surface of the first cooling roller is electrostatically charged in front of it by means of a charging electrode in the transport direction, or if the surface of the cooling roller is coated with a non-adhesive coating or with the surface of the printed web a fluid is wetted as a lubricant. This measure also contributes to the desired leveling of the web before or during running onto the first cooling roll.
- the device according to the invention which is provided with a blow rod and / or spindle and / or wetted roller, is particularly advantageously provided for the purpose of spreading the web perpendicular to it and to the direction of transport.
- this can also be arranged in the transport direction before and / or after one of the printing units, whereby the advantage is achieved that so-called mini-duplications no longer occur.
- the web 6 Before the web 6 occurs in the transport direction 8 on the first cooling roller 7, it is deflected twice in the illustrated embodiment, each with the same second and third radius of curvature R2 or R3 in the opposite direction at a first deflection point 9 and a deflection point 10 behind it in the transport direction.
- the second direction of curvature is counterclockwise, that is, opposite to the first direction of curvature of the cooling roller 7.
- the web 6 is deflected with the first direction of curvature.
- the deflection points 9 and 10 are each formed by a blow rod known per se, which has a perforation on its jacket in the deflection area of the web, through which axially supplied air can escape radially. In this way, an air cushion is formed, around which the web 6 is deflected contactlessly to the blow rod.
- the second radius of curvature R2 is smaller than the first radius of curvature R1 and the quotient from the first to the second radius of curvature is greater than 3, preferably 5 to 12. Furthermore, the second radius of curvature R2 of the web is present over a wrap angle of at least 30 °, preferably 45 °.
- the length a of the non-curved and evenly running web 6 in front of the first cooling roll 7 is less than six times the second radius of curvature R2 and is preferably dimensioned approximately three times this radius R2 in the exemplary embodiment shown.
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Laminated Bodies (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Printing Methods (AREA)
- Making Paper Articles (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95904426A EP0732996B1 (de) | 1993-12-11 | 1994-12-06 | Vorrichtung sowie verfahren zum herstellen von bedruckten blättern |
DE59407106T DE59407106D1 (de) | 1993-12-11 | 1994-12-06 | Vorrichtung sowie verfahren zum herstellen von bedruckten blättern |
AU13123/95A AU685894B2 (en) | 1993-12-11 | 1994-12-06 | Device and process for producing printed sheets |
US08/652,499 US5787809A (en) | 1993-12-11 | 1994-12-06 | Printed web smoothing device and method |
DK95904426T DK0732996T3 (da) | 1993-12-11 | 1994-12-06 | Anordning samt fremgangsmåde til fremstilling af med påtryk forsynede ark |
JP7515974A JPH09506306A (ja) | 1993-12-11 | 1994-12-06 | 印刷シートの製造装置および製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4342308 | 1993-12-11 | ||
DEP4342308.6 | 1993-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995015854A1 true WO1995015854A1 (de) | 1995-06-15 |
Family
ID=6504765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/004062 WO1995015854A1 (de) | 1993-12-11 | 1994-12-06 | Vorrichtung sowie verfahren zum herstellen von bedruckten blättern |
Country Status (9)
Country | Link |
---|---|
US (1) | US5787809A (de) |
EP (1) | EP0732996B1 (de) |
JP (1) | JPH09506306A (de) |
AT (1) | ATE172152T1 (de) |
AU (1) | AU685894B2 (de) |
DE (2) | DE59407106D1 (de) |
DK (1) | DK0732996T3 (de) |
ES (1) | ES2122523T3 (de) |
WO (1) | WO1995015854A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0899100B1 (de) * | 1997-08-29 | 2001-11-21 | Hurletron, Incorporated | Rollenoffsetdruckmaschine und Verfahren zum deren Betrieb |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004028081B4 (de) * | 2004-06-09 | 2008-09-04 | Brückner Maschinenbau GmbH | Vorrichtung zum Anlegen einer Folienbahn |
EP1795347A3 (de) | 2005-10-28 | 2010-10-27 | Koenig & Bauer Aktiengesellschaft | Kühlwalzenständer und ein Verfahren zur Kühlung einer hindurchgeführten Materialbahn |
DE102005052136B4 (de) * | 2005-10-28 | 2008-07-10 | Koenig & Bauer Aktiengesellschaft | Vorrichtung zur Erhöhung des Wärmeübergangs an einer Kühlwalze |
DE102006027146B4 (de) * | 2006-06-12 | 2009-06-04 | Koenig & Bauer Aktiengesellschaft | Verfahren zur Herabsetzung der benötigten Kühlleistung in einem Kühlwalzenständer einer Rollenrotationsdruckmaschine und eine Vorrichtung in einem Kühlwalzenständer mit Kühlwalzen |
ES2261101B1 (es) * | 2006-05-22 | 2007-12-16 | Digital Internet Transport System, S.L. | Procedimiento y dispositivo para acondicionamiento de papel. |
DE102008043767A1 (de) | 2008-11-14 | 2010-06-02 | Koenig & Bauer Aktiengesellschaft | Druckmaschine und Verfahren zur Handhabung einer durch die Druckmaschine geführten Bahn |
JP5400101B2 (ja) * | 2011-07-27 | 2014-01-29 | 富士フイルム株式会社 | 媒体搬送装置及び画像形成装置 |
PL2738296T3 (pl) * | 2012-12-03 | 2016-08-31 | Reifenhaeuser Masch | Sposób i urządzenie do transportu i do obróbki wstęgi materiału |
US9616681B2 (en) | 2014-10-10 | 2017-04-11 | Ricoh Company, Ltd. | Image forming apparatus and drying device for image forming apparatus |
DE102019108765A1 (de) | 2019-04-03 | 2020-10-08 | Koenig & Bauer Ag | Druckmaschine und Verfahren zur Herstellung von Druckprodukten |
CN111993782B (zh) * | 2020-09-12 | 2021-11-02 | 安徽源洲包装材料有限公司 | 一种塑料薄膜生产加工用的印刷装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2102344A (en) * | 1981-07-18 | 1983-02-02 | Roland Man Druckmasch | Cooler for printing machine |
JPS6027543A (ja) * | 1983-07-26 | 1985-02-12 | Mitsubishi Heavy Ind Ltd | 印刷機の冷却装置 |
JPS6030345A (ja) * | 1983-07-28 | 1985-02-15 | Mitsubishi Heavy Ind Ltd | 印刷機の冷却装置 |
US4852492A (en) * | 1986-04-30 | 1989-08-01 | Heidelberger Druckmaschinen Ag | Device for aftertreating a coated or printed material web |
JPH0259348A (ja) * | 1988-08-25 | 1990-02-28 | Komori Printing Mach Co Ltd | ウェブ汚損防止装置 |
EP0516924A1 (de) * | 1991-06-07 | 1992-12-09 | Eltex-Elektrostatik Gesellschaft mbH | Vorrichtung zur Erhöhung des Wärmeübergangs an Kühlwalzen von Offset-Rollenrotationsmaschinen |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2329152A (en) * | 1940-07-11 | 1943-09-07 | J M Huber Inc | Method and apparatus for printing |
US3273498A (en) * | 1964-03-23 | 1966-09-20 | Continental Can Co | Forming colored patterns upon polyolefin surfaces |
DE3119398C2 (de) * | 1981-05-15 | 1984-05-30 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Vorrichtung zur Einstellung der Länge einer zu bedruckenden Bahn in einer Rollenrotationsdruckmaschine |
US4774771A (en) * | 1987-03-20 | 1988-10-04 | Littleton Industrial Consultants, Inc. | Self cleaning chill roll apparatus |
GB2248583A (en) * | 1990-10-10 | 1992-04-15 | Moores J & C Ltd | Non-contact web cleaning apparatus. |
DE4039108C1 (de) * | 1990-12-07 | 1992-04-16 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | |
DE69119612T2 (de) * | 1991-03-26 | 1996-12-12 | Indigo Nv | Bilderzeugungsystem mit einem zwischenubertragungselement |
US5320334A (en) * | 1992-06-23 | 1994-06-14 | Deangelis Andrew V | Method of printing a book having pages of newsprint and pages of coated enamel pages |
JPH0630345A (ja) * | 1992-07-10 | 1994-02-04 | Clarion Co Ltd | 入力信号自動判別回路 |
JPH0627543A (ja) * | 1992-07-10 | 1994-02-04 | Konica Corp | 光学系駆動制御装置 |
DE4325725C2 (de) * | 1993-07-30 | 1998-02-19 | Cleanpack Gmbh Innovative Verp | Verfahren und Vorrichtung zum Aufwickeln von im Rollen-Offsetdruck bedruckten Folienbahnen |
-
1994
- 1994-12-06 WO PCT/EP1994/004062 patent/WO1995015854A1/de active IP Right Grant
- 1994-12-06 JP JP7515974A patent/JPH09506306A/ja active Pending
- 1994-12-06 DK DK95904426T patent/DK0732996T3/da active
- 1994-12-06 ES ES95904426T patent/ES2122523T3/es not_active Expired - Lifetime
- 1994-12-06 US US08/652,499 patent/US5787809A/en not_active Expired - Fee Related
- 1994-12-06 DE DE59407106T patent/DE59407106D1/de not_active Expired - Fee Related
- 1994-12-06 EP EP95904426A patent/EP0732996B1/de not_active Expired - Lifetime
- 1994-12-06 AT AT95904426T patent/ATE172152T1/de not_active IP Right Cessation
- 1994-12-06 AU AU13123/95A patent/AU685894B2/en not_active Ceased
- 1994-12-08 DE DE9419702U patent/DE9419702U1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2102344A (en) * | 1981-07-18 | 1983-02-02 | Roland Man Druckmasch | Cooler for printing machine |
JPS6027543A (ja) * | 1983-07-26 | 1985-02-12 | Mitsubishi Heavy Ind Ltd | 印刷機の冷却装置 |
JPS6030345A (ja) * | 1983-07-28 | 1985-02-15 | Mitsubishi Heavy Ind Ltd | 印刷機の冷却装置 |
US4852492A (en) * | 1986-04-30 | 1989-08-01 | Heidelberger Druckmaschinen Ag | Device for aftertreating a coated or printed material web |
JPH0259348A (ja) * | 1988-08-25 | 1990-02-28 | Komori Printing Mach Co Ltd | ウェブ汚損防止装置 |
EP0516924A1 (de) * | 1991-06-07 | 1992-12-09 | Eltex-Elektrostatik Gesellschaft mbH | Vorrichtung zur Erhöhung des Wärmeübergangs an Kühlwalzen von Offset-Rollenrotationsmaschinen |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 14, no. 231 (M - 974) * |
PATENT ABSTRACTS OF JAPAN vol. 9, no. 152 (M - 391) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0899100B1 (de) * | 1997-08-29 | 2001-11-21 | Hurletron, Incorporated | Rollenoffsetdruckmaschine und Verfahren zum deren Betrieb |
Also Published As
Publication number | Publication date |
---|---|
US5787809A (en) | 1998-08-04 |
JPH09506306A (ja) | 1997-06-24 |
EP0732996A1 (de) | 1996-09-25 |
ES2122523T3 (es) | 1998-12-16 |
DE9419702U1 (de) | 1995-03-23 |
ATE172152T1 (de) | 1998-10-15 |
AU1312395A (en) | 1995-06-27 |
EP0732996B1 (de) | 1998-10-14 |
AU685894B2 (en) | 1998-01-29 |
DE59407106D1 (de) | 1998-11-19 |
DK0732996T3 (da) | 1999-06-23 |
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