EP0743178A2 - Dispositif de guidage pour feuilles et/ou bandes imprimées dans des systèmes de séchage - Google Patents

Dispositif de guidage pour feuilles et/ou bandes imprimées dans des systèmes de séchage Download PDF

Info

Publication number
EP0743178A2
EP0743178A2 EP95118039A EP95118039A EP0743178A2 EP 0743178 A2 EP0743178 A2 EP 0743178A2 EP 95118039 A EP95118039 A EP 95118039A EP 95118039 A EP95118039 A EP 95118039A EP 0743178 A2 EP0743178 A2 EP 0743178A2
Authority
EP
European Patent Office
Prior art keywords
guide
guide device
sheets
guide surface
webs
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.)
Withdrawn
Application number
EP95118039A
Other languages
German (de)
English (en)
Other versions
EP0743178A3 (fr
Inventor
Armin Schneider
Edwin Schneider
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.)
Lts Trocknungsverfahren GmbH
Original Assignee
Lts Trocknungsverfahren 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
Priority claimed from DE9418358U external-priority patent/DE9418358U1/de
Application filed by Lts Trocknungsverfahren GmbH filed Critical Lts Trocknungsverfahren GmbH
Publication of EP0743178A2 publication Critical patent/EP0743178A2/fr
Publication of EP0743178A3 publication Critical patent/EP0743178A3/fr
Withdrawn legal-status Critical Current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
    • B41F23/0476—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/513—Modifying electric properties
    • B65H2301/5132—Bringing electrostatic charge
    • 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
    • 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
    • B65H2406/40—Fluid power drive; Fluid supply elements
    • B65H2406/42—Distribution circuits
    • B65H2406/421—Distribution circuits with means for changing the temperature of the fluid
    • B65H2406/4212—Distribution circuits with means for changing the temperature of the fluid for cooling fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/25—Damages to handled material
    • B65H2601/251—Smearing

Definitions

  • the invention relates to a guide device for sheets and / or webs in dryer systems, in particular for drying in printing machines.
  • Sheet guiding devices are known, such as the device for guiding freshly printed sheets described in DE-OS 39 38 863, preferably in the delivery of printing machines, in which the sheet is conveyed by means of gripper carriages circulating on chains.
  • gripper carriages circulating on chains.
  • the underside of the sheet is acted upon by blown air flows generated by axial fans. As a result, the sheet is guided at the same distance from a guide surface without flutter and smear.
  • This device eliminates the disadvantageous phenomenon that often "flutters” the sheet, in particular at high speeds and thin print carrier material. This prevents damage to the product, such as scratches, kinks, etc.
  • sheet guide plates By installing sheet guide plates in the form of a suction box construction, the sheet is sucked in and the "flutter" of the printing material is counteracted.
  • a disadvantage of this device is that when this sheet guide plate is installed compared to a radiation dryer, there is excessive heating and thus a distortion of the sheet guide plate designed as a perforated plate.
  • blowing nozzles with a recess that have a surface inclined to the conveying plane.
  • blowing nozzles with a recess that have a surface inclined to the conveying plane.
  • blow nozzles are created in a continuous manner in a continuous blow box, whose blow jets formed as impact jets do not strike the sheet perpendicularly and enclose an angle with the conveying direction.
  • the object of the invention is therefore to provide a guiding device which has no mechanical distortion during the drying process and thereby prevents damage to the printing materials.
  • the suction box shown in FIG. 1 shows a sheet guide plate 1 with the air inlet and outlet openings 2, which were introduced into the sheet guide plate 1 by means of laser welding processes.
  • a transport surface is created that has no unevenness and therefore excludes any influence on the quality of the printed products.
  • the sheet guide plate 1 is installed in relation to a radiation dryer, the sheet guide plate 1 is heated excessively and thus warps.
  • this disadvantageous phenomenon is counteracted by water-conducting cooling coils which are arranged on the back of the sheet guide plate 1 in a heat-conducting manner. The arrangement of these cooling coils takes place in such a way that the air inlet and outlet openings 2 remain free. Due to the different heat levels generated by the radiator on the side of the sheet guide plate 1 facing away from the heat-conducting cooling coils, the contact points between the sheet guide plate 1 and the cooling coils can come off and thus cause the sheet guide plate 1 to be warped.
  • the cooling coils are shown schematically in FIG. 1 as cooling bags 3.
  • the arrangement of an axial fan 4 below the rear wall 5 of the suction box construction is also shown schematically in this figure.
  • the sheet baffle 1 and the baffle 6 of the coolant system are designed as two congruent sheets arranged one above the other with the same perforation pattern.
  • the two sheets are processed at the air inlet and outlet openings 2 and at the sheet edges by means of a laser welding process.
  • the sheet guide plate 1 and the guide plate 6 have different thicknesses.
  • On the relatively thinner baffle 6 connecting pieces 8 are attached, via which the coolant enters and exits.
  • the coolant preferably water, is pressed through the channels 7 of the coolant system by means of a pressure system and causes a curvature of the guide plate 6, the one Hollow body can be created analogous to the welding contours.
  • the thicker sheet guide plate retains its original shape.
  • the shapes of the channel guides can be meandering, z-shaped or have other basic structures.
  • FIG 3 the guide device according to the invention with a blowing air system is shown schematically.
  • An air cushion 12 is generated by blown air through the air inlet and air outlet openings 2 introduced in the sheet guide plate 1 and transports the printing material without contact via the guide device.
  • the radiation dryer 11 arranged above the transport path heats the guide device during the drying process and would cause the sheet guide plate 1 to warp without the solution according to the invention.
  • the sheet guide plate 1 is kept in the original position and shape by means of the cooling pockets 3.
  • the contactless guidance system of the guide device shown in FIG. 4 consists of an electrostatic arrangement which generates an electric field.
  • the electrical field required for contactless guidance of the printing material to be dried is generated by the meandering electrode arrangement in the guide device, consisting of the electrode 9 and the electrode 10.
  • the meandering electrode arrangement in the guide device consisting of the electrode 9 and the electrode 10.
  • surface electrodes arranged under and above the sheet guide plate 1 and other electrode arrangements known per se can also be considered as the electrode arrangement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
EP95118039A 1994-11-17 1995-11-16 Dispositif de guidage pour feuilles et/ou bandes imprimées dans des systèmes de séchage Withdrawn EP0743178A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9418358U 1994-11-17
DE9418358U DE9418358U1 (de) 1994-11-17 1994-11-17 Bogenleiteinrichtung
DE19521442A DE19521442A1 (de) 1994-11-17 1995-06-16 Leiteinrichtung für bedruckte Bogen und/oder Bahnen in Trocknersystemen
DE19521442 1995-06-16

Publications (2)

Publication Number Publication Date
EP0743178A2 true EP0743178A2 (fr) 1996-11-20
EP0743178A3 EP0743178A3 (fr) 1997-02-19

Family

ID=25962649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118039A Withdrawn EP0743178A3 (fr) 1994-11-17 1995-11-16 Dispositif de guidage pour feuilles et/ou bandes imprimées dans des systèmes de séchage

Country Status (1)

Country Link
EP (1) EP0743178A3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101961963B (zh) * 2009-07-22 2012-08-22 深圳市科彩印务有限公司 避镭射版缝的凹印印刷方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938863A1 (de) 1989-11-24 1991-05-29 Roland Man Druckmasch Vorrichtung zum fuehren frisch bedruckter bogen, vorzugsweise in der auslage von druckmaschinen
DE4406846C1 (de) 1994-03-03 1995-05-04 Koenig & Bauer Ag Vorrichtung zum Trocknen von bedruckten Bogen oder Bahnen in Druckmaschinen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619050A (en) * 1985-04-15 1986-10-28 Gerhard Klemm Apparatus for drying sheet- or web-like materials with ultraviolet radiation
DE68903999T2 (de) * 1988-06-07 1993-04-29 Grace W R & Co Blaskasten fuer luftkissen.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938863A1 (de) 1989-11-24 1991-05-29 Roland Man Druckmasch Vorrichtung zum fuehren frisch bedruckter bogen, vorzugsweise in der auslage von druckmaschinen
DE4406846C1 (de) 1994-03-03 1995-05-04 Koenig & Bauer Ag Vorrichtung zum Trocknen von bedruckten Bogen oder Bahnen in Druckmaschinen

Also Published As

Publication number Publication date
EP0743178A3 (fr) 1997-02-19

Similar Documents

Publication Publication Date Title
DE4447963B4 (de) Einrichtung zum berührungsfreien Führen bogenförmigen Materials
DE19651406C1 (de) Trocknereinheit in einer Druckmaschine
DE3044649A1 (de) Vorrichtung zum aufstreichen von bogen auf druckzylinder von druckmaschinen
DE19521442A1 (de) Leiteinrichtung für bedruckte Bogen und/oder Bahnen in Trocknersystemen
EP1306212B1 (fr) Dispositif pour refroidir les produits imprimés avec de l'air refroidi dans des machines pour imprimer des feuilles rotatives
EP0780332B1 (fr) Dispositif pour agir sur des feuilles dans un appareil de sortie de feuilles
EP0807591A1 (fr) Tuyère à coussin d'air et dispositif de traitement à chaud d'une bande continue avec des tuyères à coussin d'air
DE19623471C1 (de) Belüftungsdüse
EP1028077B1 (fr) Dispositif de guidage de feuilles pour une machine à imprimer
DE4434190C2 (de) Bogenausleger an einer Bogen bearbeitenden Maschine
EP0743178A2 (fr) Dispositif de guidage pour feuilles et/ou bandes imprimées dans des systèmes de séchage
EP0658427B1 (fr) Dispositif de séchage
EP1010525B1 (fr) Dispositif de guidage de feuilles pour une machine d'impression
DE10056018B4 (de) Einrichtung zur Unterstützung der Bogenführung und Bogenablage
EP1834912B1 (fr) Machine de traitement des feuilles avec un dispositif de guidage par air comprimé pour des feuilles
DE19516335C2 (de) Ausleger für bedruckte Bogen
DE10157566A1 (de) Bogenleiteinrichtung mit einer Führungsfläche in einer Druckmaschine
DE4342203C2 (de) Einrichtung zum Einwirken auf Bogen in einer Bogenrotationsdruckmaschine
DE19501874A1 (de) Bogenablagesystem in Druckmaschinen mit Trocknern
EP1124689B1 (fr) Systeme de guidage de feuilles dans une machine a imprimer
DE9310028U1 (de) Bedruckstoffkühlung in Auslegern von Bogenrotationsdruckmaschinen
DE102014221460A1 (de) Vorrichtung zum Trocknen von Bogen
DE102013112172B3 (de) Trockner für Warenbahnen
DE4141261A1 (de) Blaseinrichtung
EP1270221B1 (fr) Système de séchage pour une machine de traitement de feuilles

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: A2

Designated state(s): BE DE FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT NL SE

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19970820