FI961573A0 - Method and apparatus for stabilizing a moving web - Google Patents
Method and apparatus for stabilizing a moving webInfo
- Publication number
- FI961573A0 FI961573A0 FI961573A FI961573A FI961573A0 FI 961573 A0 FI961573 A0 FI 961573A0 FI 961573 A FI961573 A FI 961573A FI 961573 A FI961573 A FI 961573A FI 961573 A0 FI961573 A0 FI 961573A0
- Authority
- FI
- Finland
- Prior art keywords
- web
- wall surface
- nozzle arrangement
- air
- outlets
- Prior art date
Links
Classifications
-
- 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
- B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/04—Drying on cylinders on two or more drying cylinders
- D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Advancing Webs (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
The invention relates to a process and a suitable device for implementing it to stabilise a travelling web (B) in a free-running stretch between two supports, in which air is blown on the web (B) on one side from a nozzle arrangement (16) which is surrounded by a substantially flat wall surface (9). The wall surface (9) is parallel to the web (B) and comprises an air duct (14) extending transversely to the direction of travel of the web (B) and having a V-shaped cross section, in which the nozzle arrangement is fitted. The nozzle arrangement consists of mutually staggered hole-like outlets (16, 16') machined in the opposite walls of the air duct. The underpressure region generated by the crossing air flows draws the web towards the flat wall surface (9) on going below a critical distance so that it assumes a position of equilibrium at a certain distance which is determined by the diameter of the outlets and hence the thickness of the air cushion generated by the crossing air flows.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4334468A DE4334468C2 (en) | 1993-10-11 | 1993-10-11 | Method and device for stabilizing a running web |
PCT/DE1994/001170 WO1995010474A1 (en) | 1993-10-11 | 1994-10-07 | Process and device for stabilising a travelling web |
Publications (2)
Publication Number | Publication Date |
---|---|
FI961573A FI961573A (en) | 1996-04-10 |
FI961573A0 true FI961573A0 (en) | 1996-04-10 |
Family
ID=6499787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI961573A FI961573A0 (en) | 1993-10-11 | 1996-04-10 | Method and apparatus for stabilizing a moving web |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0723523B1 (en) |
AT (1) | ATE161240T1 (en) |
DE (2) | DE4334468C2 (en) |
FI (1) | FI961573A0 (en) |
WO (1) | WO1995010474A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2943106B1 (en) * | 1998-05-18 | 1999-08-30 | 株式会社東京機械製作所 | Vibration control method for traveling web, vibration control device, and paper splicing assist device |
FI20021498A (en) * | 2002-08-20 | 2004-02-21 | Metso Paper Inc | Apparatus in connection with a continuous unwinding machine for a fibrous web, in particular a paper or board web |
DE102005026516B4 (en) * | 2005-06-08 | 2012-12-06 | Jürgen Wahrmund | Device for aligning a material web |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1774126B1 (en) * | 1968-04-13 | 1972-07-13 | Vits Maschb Gmbh | Device for stabilizing the position of sheet or arch-shaped workpieces |
DE2911685C2 (en) * | 1979-03-24 | 1981-03-12 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Blow box for the floating guidance of material webs |
GB2146303B (en) * | 1983-08-20 | 1987-01-14 | Spooner Ind Ltd | Device for supporting web on a bed of air |
FI73478C (en) * | 1985-09-24 | 1987-10-09 | Valmet Oy | ANORDNING FOER KONTAKTLOES STABILIZERING, UPPBAERING OCH / ELLER TORKNING AV EN ROERLIG BANA. |
DE3626016A1 (en) * | 1986-07-31 | 1988-02-04 | Kurt Krieger | DEVICE FOR APPLYING MATERIAL RAILS WITH FLOWING MEDIUM |
DE3807857A1 (en) * | 1988-03-10 | 1989-09-28 | Voith Gmbh J M | DRY LOT |
JPH047249A (en) * | 1990-04-25 | 1992-01-10 | Kawasaki Steel Corp | Method for controlling meandering vibration of conveying belt plate |
US5022166A (en) * | 1990-06-07 | 1991-06-11 | Union Camp Corporation | Flutter suppression air foils |
JP2554806B2 (en) * | 1991-12-05 | 1996-11-20 | 新日本製鐵株式会社 | Floating height control method for strips |
-
1993
- 1993-10-11 DE DE4334468A patent/DE4334468C2/en not_active Expired - Fee Related
-
1994
- 1994-10-07 DE DE59404840T patent/DE59404840D1/en not_active Expired - Fee Related
- 1994-10-07 WO PCT/DE1994/001170 patent/WO1995010474A1/en active IP Right Grant
- 1994-10-07 AT AT94928752T patent/ATE161240T1/en not_active IP Right Cessation
- 1994-10-07 EP EP94928752A patent/EP0723523B1/en not_active Expired - Lifetime
-
1996
- 1996-04-10 FI FI961573A patent/FI961573A0/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO1995010474A1 (en) | 1995-04-20 |
FI961573A (en) | 1996-04-10 |
ATE161240T1 (en) | 1998-01-15 |
DE4334468A1 (en) | 1995-04-13 |
DE59404840D1 (en) | 1998-01-29 |
EP0723523B1 (en) | 1997-12-17 |
DE4334468C2 (en) | 1997-07-10 |
EP0723523A1 (en) | 1996-07-31 |
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