EP0658427B1 - Trockenvorrichtung - Google Patents

Trockenvorrichtung Download PDF

Info

Publication number
EP0658427B1
EP0658427B1 EP94119053A EP94119053A EP0658427B1 EP 0658427 B1 EP0658427 B1 EP 0658427B1 EP 94119053 A EP94119053 A EP 94119053A EP 94119053 A EP94119053 A EP 94119053A EP 0658427 B1 EP0658427 B1 EP 0658427B1
Authority
EP
European Patent Office
Prior art keywords
paper
web
paper web
air
drying apparatus
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
Application number
EP94119053A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0658427A1 (de
Inventor
Werner Straubinger
Günter Pecher
Richard Kohlmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UE Sebald Druck und Verlag GmbH
Original Assignee
UE Sebald Druck und Verlag GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UE Sebald Druck und Verlag GmbH filed Critical UE Sebald Druck und Verlag GmbH
Publication of EP0658427A1 publication Critical patent/EP0658427A1/de
Application granted granted Critical
Publication of EP0658427B1 publication Critical patent/EP0658427B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0423—Drying webs by convection
    • B41F23/0433—Drying webs by convection using steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0423—Drying webs by convection
    • B41F23/0426—Drying webs by convection using heated air

Definitions

  • the invention relates to a drying device of the type laid down in the preamble of claim 1.
  • the printing units which a paper web travels at high speed, are arranged horizontally next to one another.
  • a box-like dryer housing which is open at the bottom and into which the paper web emerging from the printing unit runs.
  • the paper web is guided over the longest possible distance with the aid of guide and deflection rollers, which are referred to as guide spindles, before it reaches the next printing unit from above in order to be printed with another color.
  • each of the dryer housings In order to carry out the drying, so-called impact jet nozzle arrangements are located in each of the dryer housings, each of which is arranged in pairs on opposite sides of the paper web.
  • Each of these impingement jet nozzle arrangements comprises a plurality of mutually parallel nozzle tubes which are arranged one behind the other in the direction of movement of the paper web such that they extend substantially across the entire width of the paper web transversely to the direction of movement.
  • Each of the nozzle tubes has a multiplicity of air outlet nozzles with which it is located at a short distance from the respective side of the paper web.
  • a separate blower is provided for each impingement jet nozzle arrangement, which draws in air from the interior of the dryer housing and feeds it to the nozzle tubes, through the nozzle openings of which the air exits in a jet and impinges on the relevant paper web side. Since this air is heated, it leads to drying of the ink applied in the previous printing unit, i.e. the solvent of the paint, for example toluene, is caused to largely diffuse out of the paint application and the paper. As a result, the air circulated in the dryer housing by the fans is enriched with solvent vapors. In order not to allow their concentration to rise above a permissible value (generally 50% of the lower explosion limit), air must be continuously extracted from the dryer housing and fed to a solvent separator system.
  • a permissible value generally 50% of the lower explosion limit
  • a high expenditure of energy is required for the operation of the known dryer devices, and the object of the invention is to reduce this expenditure of energy without deteriorating the dryer performance.
  • a sufficiently high pressure is created in this air gap to create a Exclude contact between the paper web and the guide surface with certainty.
  • a device can preferably be provided for blowing blown air into the air gap between the paper web and the guide surface. The amount of air required for this is considerably less than the amount of air circulated by the second impingement jet nozzle arrangement previously considered necessary and the associated blower.
  • one of two impingement jet nozzle arrangements and the associated blower can thus be dispensed with without reducing the drying effect, so that a 50% reduction in blower output is achieved.
  • a rotogravure printing machine that comprises eight printing units for double-sided 4-color printing, this leads to immense energy savings.
  • a particular advantage of the drying device according to the invention is that the steam lance just described can be integrated into it. It is preferably located directly behind the device for blowing in air Air is arranged in the air gap formed between the paper web and the guide surface in such a way that the water vapor also flows into this air gap. In contrast to the prior art, in which the majority of the water vapor does not penetrate into the paper web, this enables a very intensive moistening of the paper web, which additionally saves thermal energy.
  • the heat content of the water vapor contributes to an increased diffusion of the solvent out of the paper and the applied color layer.
  • the housing of the drying device according to the invention is designed such that it is completely closed, with the exception of two narrow gaps through which the paper web enters and exits, the air circulating in the dryer housing is enriched with moisture , so that the paper web shrinks less from the outset.
  • the measures according to the invention not only significantly reduce the electrical power required for the operation of the drying device, but also considerably reduce the path on which the paper web has to pass through the drying device in order to carry out further processing without the risk of blurring the Allow color.
  • the drying section is so short that the drying device can be traversed in a straight line by the paper web between the inlet and outlet nip and does not require any lead screws.
  • Such a drying device is therefore ideally suited for installation in a rotogravure printing machine, in which the printing units are arranged one above the other in tower construction and the paper web in each of the towers is only guided through the forme cylinders and impressioners of the printing units, but otherwise without contact, as is the case in the older one European patent application 93 117 070.8.
  • the drying device 1 comprises a largely closed housing 2, in the left part of the figure in which a blower (not shown in more detail) is accommodated, which draws air from the interior of the housing and blows onto a paper web 6 in the direction of the arrows L via a plurality of nozzle pipes 4 which passes through the dryer housing 2 in the direction of the arrows P from top to bottom. It is assumed that the printing unit of a rotogravure printing machine is located directly above the drying device 1, in which the paper web has been printed on the left side in the figure.
  • a plurality of mutually parallel nozzle tubes 4 are arranged such that they are opposite one another in the direction of movement of the paper web 6 to the freshly printed side of the paper web 6.
  • the nozzle tubes 4, each of which has a multiplicity of air outlet nozzles, extend transversely to the direction of movement of the paper web 6 approximately over its entire width.
  • the connecting lines via which the air coming from the blower is fed to the nozzle tubes 4 cannot be seen in the section of the figure.
  • a hollow body 8 with an airfoil-shaped cross section is arranged such that it extends with a flat surface area 9 of its outer surface parallel to the paper web 6 and at a short distance from it. Perpendicular to the plane of the drawing of the figure, the hollow body 8 also has an extent which corresponds approximately to the width of the paper web transversely to the direction of movement.
  • the flat surface area 9 merges into a curved surface area 10, the surface lines of which run perpendicular to the plane of the drawing parallel to the paper web 6, but which in the section shown is bent away from the paper web such that the air gap 11 formed between the paper web 6 and the surface areas 9, 10 widens towards the entry end of the paper web.
  • the housing 2 is preferably designed as an almost closed unit which has only a very narrow inlet gap 14 for the paper web 6 at its upper end and an equally narrow outlet gap 15 at its lower end, it can be advantageous for stabilizing the air cushion built up in the air gap 11 be to supply compressed air in the region of the upper end of the air gap, as indicated by the arrows D.
  • the interior of the hollow body 8 can be used as a compressed air line space.
  • the amount of blown air required per unit of time is significantly less than the amount of air blown against the paper web 6 by the opposing jet jet arrangement formed by the nozzle tubes 4. The energy required for the generation and supply of this blown air is therefore negligibly small compared to the blower output of the impingement jet arrangement.
  • a steam lance 18 is installed, which is formed by a tube which extends transversely to the direction of movement of the paper web 6 and over its entire width and which has a multiplicity of nozzle openings which make it possible for water vapor supplied through the tube in the direction of the Blow arrow W onto the paper web.
  • This moistening of the paper web is necessary in order to prevent the paper web from shrinking due to water removal which otherwise takes place in the dryer, which would impair the register accuracy.
  • This arrangement of the steam lance not only makes it possible to downsize the entire printing press but also has the advantage that the outflowing steam can be brought into very intensive contact with the paper web. This reduces the amount of steam required, which helps to save energy.
  • the heat content of the steam in the dryer is used to accelerate the diffusion of the solvent out of the paint. So drying energy can also be saved.
  • the pipes which serve to discharge air laden with solvent vapors from the housing 2 and to feed them to an adsorption and separation system are also omitted in the figure, as are optional pipes through which the air is preheated and possibly already contains small amounts of solvent , can for example be fed from a final dry section of the printing press.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Adjustment And Processing Of Grains (AREA)
EP94119053A 1993-12-16 1994-12-02 Trockenvorrichtung Expired - Lifetime EP0658427B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4343085 1993-12-16
DE4343085 1993-12-16

Publications (2)

Publication Number Publication Date
EP0658427A1 EP0658427A1 (de) 1995-06-21
EP0658427B1 true EP0658427B1 (de) 1997-03-19

Family

ID=6505279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119053A Expired - Lifetime EP0658427B1 (de) 1993-12-16 1994-12-02 Trockenvorrichtung

Country Status (9)

Country Link
EP (1) EP0658427B1 (fi)
JP (1) JPH07232428A (fi)
AT (1) ATE150371T1 (fi)
CA (1) CA2138175A1 (fi)
CZ (1) CZ314494A3 (fi)
DE (1) DE59402139D1 (fi)
FI (1) FI945825A (fi)
HU (1) HU213665B (fi)
PL (1) PL306334A1 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3647056A1 (de) 2018-11-05 2020-05-06 Heidelberger Druckmaschinen AG Maschine zum herstellen von druckprodukten

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19901801C2 (de) * 1999-01-19 2003-12-11 Baldwin Germany Gmbh Vorrichtung zum Konditionieren einer Papierbahn
DE19918669A1 (de) 1999-04-23 2000-10-26 Heidelberger Druckmasch Ag Trockner mit integrierter Kühleinheit
DE19920091A1 (de) * 1999-05-03 2000-11-16 Baldwin Grafotec Gmbh Verfahren und Vorrichtung zur Konditionierung einer Papierbahn
ITMI20052190A1 (it) * 2005-11-16 2007-05-17 Ohg G Cerutti S P A Dispositivo di sciugamento della banda stampata in una macchina da stampa
JP2009073011A (ja) * 2007-09-20 2009-04-09 Seiko Epson Corp 液体噴射装置
DE102008029432B3 (de) 2008-06-23 2009-09-17 Prinovis Ltd. & Co. Kg Trocknungsanlage für durchlaufende Warenbahnen in Form von bedruckten und/oder beschichteten Papierbahnen
CN107244144A (zh) * 2017-07-26 2017-10-13 湖州佳宁印刷有限公司 一种开合式印刷干燥收纸一体印刷机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1806261B1 (de) * 1968-10-31 1969-10-23 Maschf Augsburg Nuernberg Ag Trockeneinrichtung fuer eine in zwei Drehrichtungen zu betriebende Rotationstiefdruckmaschine in Reihenbauart
DE3008703A1 (de) * 1980-03-07 1981-09-24 Ramisch Kleinewefers Gmbh, 4150 Krefeld Vorrichtung zum mehrfarbingen bedrucken thermoplastischer folienbahnen
DE3114406A1 (de) * 1981-04-09 1982-11-04 Lehmacher, Hans, 5216 Niederkassel Druckmaschine zum bedrucken einer folienbahn aus kunststoff
IT1265709B1 (it) * 1992-01-31 1996-12-02 Cerutti Spa Off Mec Dispositivo di ventilazione e di asciugamento per macchina da stampa
DE59305863D1 (de) * 1992-10-28 1997-04-24 Sebald U E Rotationstiefdruckmaschine und -verfahren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3647056A1 (de) 2018-11-05 2020-05-06 Heidelberger Druckmaschinen AG Maschine zum herstellen von druckprodukten

Also Published As

Publication number Publication date
JPH07232428A (ja) 1995-09-05
FI945825A (fi) 1995-06-17
CA2138175A1 (en) 1995-06-17
HU9403598D0 (en) 1995-02-28
EP0658427A1 (de) 1995-06-21
DE59402139D1 (de) 1997-04-24
HUT69517A (en) 1995-09-28
FI945825A0 (fi) 1994-12-12
PL306334A1 (en) 1995-06-26
CZ314494A3 (en) 1995-07-12
HU213665B (en) 1997-09-29
ATE150371T1 (de) 1997-04-15

Similar Documents

Publication Publication Date Title
AT392991B (de) Trockenpartie fuer eine maschine zur herstellung oder verarbeitung von faserbahnen, insbesondere papierbahnen
DE3856204T2 (de) Vorrichtung zur Trocknung einer Bahn
EP0743996B1 (de) Papier-streichvorrichtung
DE3790947C2 (de) Verfahren und Vorrichtung für eine Taschenventilation in der Trockenpartie einer Papiermaschine, insbesondere für schnellaufende Papiermaschinen
DE69620479T2 (de) Verfahren und vorrichtung zum entfernen von staub für eine papierherstellungs- oder papierveredelungsmaschine oder dergeleichen
DE3305749A1 (de) Trockner
CH663042A5 (de) Luftleitkasten an der trockenpartie einer papiermaschine.
DE69003996T2 (de) Vorrichtung zum Abkühlen einer aus einem Trockner kommenden Materialbahn.
DE102018110824B4 (de) Verfahren zum Trocknen eines Substrats sowie Lufttrocknermodul zur Durchführung des Verfahrens sowie Trocknersystem
EP0658427B1 (de) Trockenvorrichtung
DE69326761T2 (de) Mehrzwecksblaskasten mit düsen
EP0778131A1 (de) Bogenführsystem für eine Druckmaschine
DE4013485C2 (de) Verfahren und Vorrichtung zur Effektivierung der Bahnendaufführung in einer Papiermaschinentrockenpartie
WO2009092485A1 (de) Trockenpartie
DE3400939C2 (fi)
EP0298299B1 (de) Vorrichtung zum berührungslosen Führen von Materialbahnen
DE19858839A1 (de) Verfahren und Vorrichtung zum Wärmebehandeln einer durchlaufenden Warenbahn durch Aufblasen von Dampf
DE102006027146A1 (de) Verfahren und eine Vorrichtung zur Herabsetzung der benötigten Kühlleistung in einem Kühlwalzenständer einer Rollenrotationsdruckmaschine
DE19521442A1 (de) Leiteinrichtung für bedruckte Bogen und/oder Bahnen in Trocknersystemen
DE10024296B4 (de) Maschine zur Herstellung einer Materialbahn
DE4342203C2 (de) Einrichtung zum Einwirken auf Bogen in einer Bogenrotationsdruckmaschine
EP0812685A1 (de) Saugvorrichtung zur Luftabsaugung im Bereich des Einlaufspaltes zwischen einer Materialbahn und einer Kühlwalze einer Rollenoffsetdruckmaschine
DE2716613C2 (de) Vorrichtung zum Trocknen von bedruckten oder beschichteten Warenbahnen
DE19516335C2 (de) Ausleger für bedruckte Bogen
DE69429850T2 (de) Verfahren und Vorrichtung zur Trocknung von bahnförmigem Material

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL

17P Request for examination filed

Effective date: 19950522

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19960813

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19970319

Ref country code: GB

Effective date: 19970319

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19970319

REF Corresponds to:

Ref document number: 150371

Country of ref document: AT

Date of ref document: 19970415

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 59402139

Country of ref document: DE

Date of ref document: 19970424

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19970319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971231

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: U.E. SEBALD DRUCK UND VERLAG G.M.B.H.

Effective date: 19971231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20001213

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010228

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020830

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051202