EP0845094A1 - Schwebetrockner - Google Patents
SchwebetrocknerInfo
- Publication number
- EP0845094A1 EP0845094A1 EP97929098A EP97929098A EP0845094A1 EP 0845094 A1 EP0845094 A1 EP 0845094A1 EP 97929098 A EP97929098 A EP 97929098A EP 97929098 A EP97929098 A EP 97929098A EP 0845094 A1 EP0845094 A1 EP 0845094A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- dryer
- blowing nozzles
- distance
- float
- 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
Links
Classifications
-
- 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
-
- 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
- F26B13/12—Controlling movement, tension or position of material
Definitions
- the invention relates to a method for changing the position of a web and a levitation dryer according to the preamble of claims 1, 3 and 10.
- DE 29 41 282 A1 describes a blower nozzle of a floating dryer in which an air flow with a component transverse to the transport direction of a web is produced. These cross components of the air flow are not used to change the position of the web, but should result in a more uniform drying of the web.
- the invention has for its object to provide a method for changing the position of a web and a levitation dryer.
- the blow nozzle tubes for the gaseous drying medium are usually offset by a half part of the paper web against the blow nozzle tubes under the paper web. As a result, the paper web hovers and runs through an elongated web sinusoidal snake shape with z. B. 40 wave crests at a distance of 250 mm over a length of 10 m.
- the paper web winding appears to be standing between the stationary blowpipes, while the paper elements actually run through the valleys and peaks of the paper web generated with hot blown air in the dryer at a speed of 5 - 15 m / s.
- cooling rollers arranged behind the levitation dryer convey a little more paper than the last printing unit delivers before the levitation dryer by appropriate advance.
- the paper web runs through the entire dryer length exactly parallel to the longitudinal axis of the dryer.
- Hot air levitation dryer because of their great length, has considerable problems with the so-called lateral path.
- This complex behavior manifests itself differently at different web speeds, with different paper weights, with differently selected web tension, with different hot air temperatures depending on the paper weight with natural or coated paper Paper, with different print subjects with a lot or little color, with symmetrical and asymmetrical subject distribution with webs of different web widths running in the middle or off-center to the dryer longitudinal axis etc.
- the paper web should also leave the dryer exactly in the middle when the web enters the floating dryer. Often this is not the case - d. H.
- the web comes from the last printing unit exactly into the middle of the dryer, it leaves the floating dryer laterally displaced laterally by 10 mm, 20 mm or even 50 mm in the direction of the operating or drive side. Tolerances of ⁇ 10 mm are allowed and are compensated for by known "web aligners" after drying and cooling. Larger deviations lead to malfunctions in the web run and in the folder to fold formation and warping, which means waste.
- the advantages that can be achieved with the invention are, in particular, that the known path problems are solved.
- the web exit from the dryer is laterally correctable compared to the web inlet.
- the dryer does not have to be cooled down in order to be able to make corrections or adaptations to changed production conditions.
- the printer should be able to manually return an occurring lateral path to "zero", or the lateral path should be measured and corrected automatically via a controlled system.
- Generating such a force component in the direction of a side edge is possible, for example, by generating an air flow in the direction of this side edge.
- This air flow can be generated by a pressure drop in the dryer from a first to a second side edge.
- speed and / or direction and / or amount of a gaseous medium acting on the web for drying e.g. B. air to change.
- the one on the train Acting speed of the blowing jets can take place, for example, by changing the pressure or by changing the distance between the nozzle opening and the web.
- Oe r floating dryer according to the invention is shown in the drawing and is described in more detail below.
- Figure 1 is a schematic side view of a Schwebet rockner.
- Figure 2 is a schematic view of an undeflected levitation dryer in transport direction "T" of a web.
- FIG. 3 shows a course of the web in the levitation dryer according to FIG. 2;
- FIG. 4 shows a schematic view of the deflected air dryer according to FIG. 2;
- FIG. 5 shows a course of the web in the levitation dryer according to FIG. 4;
- FIG. 6 shows a schematic view of the deflected air dryer according to FIG. 2; 7 shows a course of the web in the levitation dryer according to FIG. 6;
- Fig. 8 is a schematic view of a second
- Fig. 9 is a schematic plan view of a course of the web in the area of the levitation dryer.
- Fig. 1 shows a side view of a known waveform of the moving web 1, z. B. a paper web, in the float dryer 2, generated by blowing nozzles 3 provided with blowing nozzle pipes 4, 6.
- the above and below the web 1 arranged blowing nozzle pipes 4, 6 are offset parallel to each other and transversely to the transport direction "T" of the web at an upper 7 and lower 8 chamber attached. As a result, the web 1 runs in an undulating manner through the floating dryer 2.
- the upper chamber 7 with the blow nozzle tubes 4 is fixedly mounted between the support columns 9, 11.
- the lower chamber 8 with the blow nozzle tubes 6 is movably guided by rollers 12 in the support columns 9, 11 and can be moved from an operating position "B "can be lowered in parallel into a maintenance position" W ".
- stops 13 of the lower chamber 8 lie on fixed stops 14 and in centering pins 16th
- F1g. 2 shows a view of the floating dryer 2 according to FIG. 1 in the non-deflected position.
- the upper and lower blow nozzle tubes 4, 6 are usually fixedly attached to the associated chambers 7, 8 and are parallel to one another. Lane 1 - with parallel wave crests and troughs - lies parallel between them.
- FIGS. 1 and 2 show the course of the web 1 with wave heights and valleys of equal height, which are parallel in themselves and which are forced by the parallel blowing nozzles 3 according to FIGS. 1 and 2.
- Fig. 4 is in the lower chamber 8 about its extending in transport direction "T" extending longitudinal axis 17 perpendicular to the transport direction 17 slightly pivoted, over the entire length of the air dryer 2 is thereby a distance a1 between the blowing nozzles 3 at the end of Blow nozzle tubes 4, 6 on an operating side 18 smaller than a distance a2 between the blow nozzles 3 at the end of the blow nozzle tubes 4, 6 on a drive side 19.
- a gaseous drying medium eg. B. air
- the web 1 thus runs over the length of the air dryer 2 laterally in the direction of the drive side 19 according to FIG. 5.
- FIG. 7 shows a lateral course of the web 1 to the operating side 18 when a distance a3 of the blowing nozzles 3 of the upper and lower chambers 4, 6 on the operating side 18 is greater than a distance a4 on the drive side 19 according to FIG. 6.
- the upper chamber 7 or lower 8 and upper 7 chamber can be about the longitudinal axis 17, i. H. Transport direction
- FIG. 8 shows that the pivoting of an upper 7, lower 8 or both chambers does not have to take place about the longitudinal axis 17 in a center of the floating dryer 2 of FIGS. 4 and 6. It is also generally possible to tilt about any longitudinal axis of the floating dryer 23 with the chambers 24, 26.
- the stops 27 can be, for example, threaded bolts 28, which can be understood individually or centrally or by motor means via worm wheels 29 by means of worms 31 via a handwheel 32 l are ibar.
- Fig. 9 shows in a plan view that it is further possible to use a pointer effect.
- the short dryer 34 is set in a ratio of 1:10 to an opposite correction offset of 3 mm, by pointer action over a further 10 m rigid main dryer length to zero web course at the dryer end 38 to come.
- the web 1 then runs into the cooling roller group 39, while the last printing unit 41 is indicated on the far left.
- auxiliary frame parallel to the paper rail means can be pivoted in such a way that its blowpipes transverse to the web are either parallel or more or less oblique to the fixed blowpipes.
- a closed control loop for the automatic correction of any Bruver run is introduced.
- photocells 42 which monitor the edges of the paper on the operating side 18 and drive side 19. If the web 1 runs from the middle position, a correction kit of the movable blow box or blow frame is triggered via a computer or the like and the web 1 is thus automatically held in the middle position.
- the method according to the invention automatically corrects or compensates for a web course that is present or is created in the floating dryer 2, 33. In an advantageous manner, lengthy adjustments in the event of dryer deficiencies are avoided.
- the printer is relieved of a surveillance task. It is possible to build faster, ie even longer dryers, since any web course can be corrected with the arrangement according to the invention.
- a further embodiment of the invention provides for the change in the frictional forces acting on the web 1 for the purpose of correcting the course of the run in the dryer, in that the entire blowing tube cannot be tilted transversely to a longitudinal axis of the dryer, but, as previously known, is arranged firmly in the lower and upper box. All or individual pipes, e.g. B.
- the tubes are supplied with air separately on the operating side 18 and drive side 19.
- the separate air supply can be finely regulated according to the air volume and air pressure. With this method, too, the component of the frictional forces transverse to the transport direction "T" in the direction of the drive and operating side can be made the same or different in size for straight or slightly curved paper flow in the dryer.
- the blowpipes can also be divided into more than two chambers with separate air supply.
- a closed control loop with photocells or the like can be used for automatic web edge detection.
- a computer ensures the correct amount of air and pressure on the operator and drive side of the dryer, so that the web at the end of the dryer remains centered or is regulated laterally to where the printer wants it to run for the optimal Fa file.
- the direction of the web 1 is changed by changing the frictional forces acting on the web 1, so that a component of a resultant of all the frictional forces acting on the web 1 points in the direction of the desired change in direction of the web 1.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Advancing Webs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19623685 | 1996-06-14 | ||
DE19623685 | 1996-06-14 | ||
DE19647050A DE19647050C2 (de) | 1996-06-14 | 1996-11-14 | Verfahren zur Veränderung einer Lage einer Warenbahn |
DE19647050 | 1996-11-14 | ||
PCT/DE1997/001192 WO1997047934A1 (de) | 1996-06-14 | 1997-06-12 | Schwebetrockner |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0845094A1 true EP0845094A1 (de) | 1998-06-03 |
EP0845094B1 EP0845094B1 (de) | 2002-01-16 |
Family
ID=26026558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97929098A Expired - Lifetime EP0845094B1 (de) | 1996-06-14 | 1997-06-12 | Schwebetrockner |
Country Status (5)
Country | Link |
---|---|
US (1) | US5921451A (de) |
EP (1) | EP0845094B1 (de) |
JP (1) | JP3686679B2 (de) |
DE (1) | DE59706004D1 (de) |
WO (1) | WO1997047934A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1013553A3 (nl) * | 2000-06-13 | 2002-03-05 | Unilin Beheer Bv | Vloerbekleding. |
US6612240B1 (en) * | 2000-09-15 | 2003-09-02 | Silverbrook Research Pty Ltd | Drying of an image on print media in a modular commercial printer |
BE1014345A3 (nl) | 2001-08-14 | 2003-09-02 | Unilin Beheer Bv | Vloerpaneel en werkwijze voor het vervaardigen ervan. |
JP4055570B2 (ja) * | 2002-12-19 | 2008-03-05 | セイコーエプソン株式会社 | 液滴吐出装置 |
KR101259929B1 (ko) * | 2010-06-24 | 2013-05-02 | 파나소닉 주식회사 | 부상 반송 방법 및 부상 반송 장치 |
CN102788494A (zh) * | 2011-05-20 | 2012-11-21 | 深圳富泰宏精密工业有限公司 | 风干设备 |
JP6276446B1 (ja) * | 2017-03-24 | 2018-02-07 | 中外炉工業株式会社 | 蛇行修正可能な帯状材の搬送装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2644618A1 (de) * | 1976-10-02 | 1978-04-06 | Lamicoater Ets | Vorrichtung zum behandeln einer flexiblen materialbahn |
US4292745A (en) * | 1978-08-29 | 1981-10-06 | Caratsch Hans Peter | Air foil nozzle dryer |
US4197973A (en) * | 1978-10-12 | 1980-04-15 | W. R. Grace & Co. | High velocity web floating air bar having air flow straightening means for air discharge slot means |
GB2058313A (en) * | 1979-08-24 | 1981-04-08 | Caratsch Hans Peter | Air foil nozzle dryer |
US4322026A (en) * | 1980-04-14 | 1982-03-30 | Young Engineering, Inc. | Method and apparatus for controlling a moving web |
JPS57207128A (en) * | 1981-06-15 | 1982-12-18 | Daido Steel Co Ltd | Correcting method for snaking |
US4833794A (en) * | 1988-08-10 | 1989-05-30 | Advance Systems, Inc. | Dryer apparatus for floating a running web and having baffle means for spent return air |
CA2033883C (en) * | 1990-01-16 | 2001-09-04 | Richard J. Wimberger | Steerable air bar/edge dam apparatus |
DE4033642A1 (de) * | 1990-10-23 | 1992-04-30 | Hoechst Ag | Leitvorrichtung zum fuehren, aus- und/oder umlenken einer materialbahn |
US5272819A (en) * | 1991-05-16 | 1993-12-28 | W. R. Grace & Co.-Conn. | Moveable web slot |
US5152080A (en) * | 1991-06-25 | 1992-10-06 | W. R. Grace & Co.-Conn. | Steerable air bar/edge dam apparatus |
CN1028628C (zh) * | 1992-03-23 | 1995-05-31 | 海德堡印刷机械股份公司 | 控制卷筒纸横向位置的装置 |
-
1997
- 1997-06-12 WO PCT/DE1997/001192 patent/WO1997047934A1/de active IP Right Grant
- 1997-06-12 US US09/011,202 patent/US5921451A/en not_active Expired - Fee Related
- 1997-06-12 DE DE59706004T patent/DE59706004D1/de not_active Expired - Fee Related
- 1997-06-12 EP EP97929098A patent/EP0845094B1/de not_active Expired - Lifetime
- 1997-06-12 JP JP50107198A patent/JP3686679B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9747934A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP3686679B2 (ja) | 2005-08-24 |
JP2000503383A (ja) | 2000-03-21 |
WO1997047934A1 (de) | 1997-12-18 |
EP0845094B1 (de) | 2002-01-16 |
DE59706004D1 (de) | 2002-02-21 |
US5921451A (en) | 1999-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2305466B1 (de) | Formatvariable Rollendruckmaschine | |
DE3905472A1 (de) | Trocknereinrichtung zum schwebenden aufnehmen und fuehren eines durchlaufenden bahnmaterials | |
DE10352619A1 (de) | Verfahren und Vorrichtung zur Beeinflussung des Fan-Out-Effektes | |
DE4327646C2 (de) | Breiten-Einstellverfahren für eine Papierbahn sowie damit ausgerüstete lithographische Rotationspresse | |
DE69308064T2 (de) | Luftführungsvorrichtung mit einer Ablaufplatte zum Wenden einer bewegten Bahn | |
WO1997047934A1 (de) | Schwebetrockner | |
DE202023102224U1 (de) | Tintenstrahldrucksystem mit externer Trocknung | |
DE4325251C2 (de) | Vorrichtung zum Einziehen von Bedruckstoffbahnen durch einen Trockner | |
EP0788878B1 (de) | Vorrichtung und Verfahren zum Führen einer Bahn zwischen zwei Zylinder einer Druckmaschine | |
DE3331856A1 (de) | Vorrichtung zum trocknen und/oder halten von bahnmaterial | |
DE4317400C2 (de) | Vorrichtung zum Trocknen von bedruckten Materialbahnen | |
EP0752495A1 (de) | Schuh-Presseinrichtung | |
DE19502240C2 (de) | Verfahren und Vorrichtung zum Einziehen einer Bedruckstoffbahn im Rollenrotationsdruck | |
DE19647050C2 (de) | Verfahren zur Veränderung einer Lage einer Warenbahn | |
DE8510912U1 (de) | Vorrichtung zur Korrektur des Bedruckstoff-Seitenregisters | |
DE69500781T2 (de) | Luftleitflügel für eine pneumatische Wendestange | |
EP1475326B1 (de) | Bogenausrichteinrichtung mit einer Blasluftniederhaltervorrichtung | |
DE69119619T2 (de) | Verfahren zur Führung einer Gewebebahn in einem Trockner und Apparat zur Durchführung des Verfahrens | |
DE10248249B4 (de) | Trockner für eine Materialbahn | |
EP3411236B1 (de) | Druckmaschine und verfahren zum trocknen eines bandmaterials einer druckmaschine | |
EP1621500B1 (de) | Druckmaschine mit einem Wendewerk | |
DE102005026516A1 (de) | Einrichtung zum Ausrichten einer Materialbahn | |
DE3513319A1 (de) | Vorrichtung zur korrektur des bedruckstoff-seitenregisters | |
DE29712608U1 (de) | Anlage zum Behandeln von durchlaufenden flexiblen Bahnen | |
DE19927241A1 (de) | Stoffauflauf |
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 |
|
17P | Request for examination filed |
Effective date: 19980211 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB LI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: KOENIG & BAUER AKTIENGESELLSCHAFT |
|
17Q | First examination report despatched |
Effective date: 20000410 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
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 |
|
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 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB LI |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20020116 |
|
REF | Corresponds to: |
Ref document number: 59706004 Country of ref document: DE Date of ref document: 20020221 |
|
ET | Fr: translation filed | ||
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 | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20080627 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20080619 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20080626 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080630 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090612 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100226 |
|
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: 20090630 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090630 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090612 |
|
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: 20100101 |