WO2005078185B1 - Dynamic counter blade support - Google Patents
Dynamic counter blade supportInfo
- Publication number
- WO2005078185B1 WO2005078185B1 PCT/SE2005/000210 SE2005000210W WO2005078185B1 WO 2005078185 B1 WO2005078185 B1 WO 2005078185B1 SE 2005000210 W SE2005000210 W SE 2005000210W WO 2005078185 B1 WO2005078185 B1 WO 2005078185B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- counter blade
- foil arrangement
- flexible
- anvil means
- foil
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/48—Suction apparatus
- D21F1/483—Drainage foils and bars
- D21F1/486—Drainage foils and bars adjustable
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Paper (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Soil Working Implements (AREA)
Abstract
The invention refers to a foil arrangement (33) and a method for a double wire screen former. At least one foil (6) comprises a flexible counter blade (10) extending over the entire screen (3) width. The counter blade (10) is supported on a flexible device (12) mounted on a beam (13) extending in the lateral direction. The flexible device (12) is arranged to apply a flexible pressure on the counter blade (10) such that the counter blade (10) applies a flexible pressure on one of the screens (3). The foil arrangement comprises a dynamic anvil means (19) for dynamically applying a force on the counter blade (10) in the counter direction of the screen (3) movement.
Claims
1. A foil arrangement (33) for a double wire screen former for the manufacture of a fiber material web (8) from a fiber material suspension, comprising a number of foils (6), where at least one foil (6) comprises a flexible counter blade (10) extending over essentially the entire screen (3) width, in the lateral direction in view of the machine direction, wherein the counter blade (10) is supported on a flexible device (12) mounted on a beam (13) extending in the lateral direction, wherein the flexible device (12) is arranged to apply a flexible pressure on the counter blade (10) such that the counter blade (10) applies a flexible pressure on one of the screens (3), essentially perpendicular to the extension of the screen (3), the counter blade (10) comprises a vertical holding profile (16) arranged to be vertically slidably fitted over the beam (13), the flexible device (12) is fitted within the vertical holding profile (16) between the beam (13) and the vertical holding profile (16), c h a r a c t e r i z e d i n that the foil arrangement comprises a dynamic anvil means (19) for dynamically applying a force on the counter blade (10) in the counter direction of the screen (3) movement such that any locking frictional forces between the beam 13 and the vertical holding profile 16 is released.
2. A foil arrangement (33) according to claim 1 , c h a r a c t e r i z e d i n that the anvil means (19) has a force point (20) at a vertical position on the counter blade (10) between the screen and the beam (13).
3. A foil arrangement (33) according to claim 1 or 2, c h a r a c t e r i z e d i n that the foil arrangement (33) comprises a resilient means (21) arranged between the anvil means (19) and the counter blade
(10) for absorbing relative vertical movement between the anvil means (19) and the counter blade (10).
4. A foil arrangement according to claim 3, characterized in that the resilient means (21) is arranged in the force point (20) for applying pressure on the counter blade (10).
5. A foil arrangement (33) according to any one of the preceding claims, characterized in that the foil arrangement (33) comprises a dynamic pressure device (22) for dynamically applying pressure on the anvil means (19).
6. A foil arrangement (33) according to claim 9, characterized in that the dynamical pressure device (22) extends essentially along the entire lateral extension of the counter blade.
7. A foil arrangement (33) according to claim 5 or 6, characterized in that the anvil means (19) comprises a lever arm
(25) articulately mounted on a shaft (26).
8. A foil arrangement (33) according to claim 7, characterized in that the lever arm (25) has a first end portion (27) on one side of the shaft (26) and a second end portion (28) on the other side of the shaft (26), where the first end portion (27) is arranged to comprise the force point (20) and where the dynamic pressure device (22) is arranged for applying dynamic pressure on the second end portion (28) such that the lever arm (25) rotates about the shaft (26) and dynamically applies pressure on the counter blade (10) via the force point (20).
9. A foil arrangement (33) according to claim 8, characterized in that the foil arrangement (33) comprises an adjustable pin (29) for hindering the rotational movement of the lever arm (25) in one direction, which adjustable pin 29 is arranged at the second end portion (28) on one side of the lever arm (25) and where the dynamic pressure device (22) is arranged on the opposite side of the lever arm (25).
AMENDED SHEET TICUE'B) 24
10. A foil arrangement (33) according to claim 9, characterized in that the foil arrangement comprises a stop arm (31 ) in which the adjustable pin (29) is adjustably mounted.
11. A foil arrangement (33) according to claim 10, characterized in that the foil arrangement (33) comprises a support plate (14) onto which the beam (13) and the dynamic pressure device (22) and the stop arm (31) is mounted.
12. A foil arrangement (33) according to any one of the preceding claims, characterized in that the foil arrangement (33) comprises a number of anvil means (19) distributed along the lateral extension of the counter blade (10).
13. A method for ensuring a flexible vertical motion of a counter blade (10), where a foil arrangement (33) for a double wire screen former for the manufacture of a fiber material web (8) from a fiber material suspension, comprises a number of foils (6), where at least one foil (6) comprises a flexible counter blade (10) extending over the entire screen (3) width, in the lateral direction in view of the machine direction, wherein the counter blade (10) is supported on a flexible device (12) mounted on a beam (13) extending in the lateral direction, wherein the flexible device (12) applies a flexible pressure on the counter blade (10) such that the counter blade (10) applies a flexible pressure on one of the screens (3), essentially perpendicular to the extension of the screen (3), the counter blade (10) comprises a vertical holding profile (16) vertically slidably fitted over the beam (13), the flexible device (12) is fitted within the vertical holding profile (16) between the beam (13) and the vertical holding profile (16), characterized in that the foil arrangement comprises a dynamic anvil means (19) that applies a dynamical force on the counter blade (10) in the counter direction of the 25
screen (3) movement such that any locking frictional forces between the beam 13 and the vertical holding profile 16 is released.
14. A method according to claim 13, characterized in that the anvil means (19) applies force via a force point (20) at a vertical position on the counter blade 10 between the screen and the beam 13.
15. A method according to claim 13 or 14, characterized in that the foil arrangement (33) comprises a resilient means (21) arranged between the anvil means (19) and the counter blade (10) absorbing relative vertical movement between the anvil means (19) and the counter blade (10).
16. A method according to any one of claims 13-15, characterized in that the foil arrangement (33) comprises a dynamic pressure device (22) dynamically applying pressure on the anvil means (19).
17. A method according to claim 16, characterized in that the anvil means (19) comprises a lever arm (25) articulately mounted on a shaft (26), which lever arm (25) transmits the dynamical force from the dynamic pressure device (22) to the counter blade (10).
18. A method according to claim 17, characterized in that the lever arm (25) has a first end portion (27) on one side of the shaft (26) and a second end portion (28) on the other side of the shaft (26), where the first end portion (27) is arranged to comprise the force point (20) and where the dynamic pressure device (22) applies dynamic pressure on the second end portion (28) such that the lever arm (25) rotates about the shaft (26) and dynamically applies pressure on the counter blade (10) via the force point (20).
19. A method according to any one of claims 13-18, characterized in that the foil arrangement (33) comprises a number 26
of anvil means (19) distributed along the lateral extension of the counter blade (10), applying pressure on a number of points along the counter blade (10) extension.
20. A method according to claim 19, characterized i n that the dynamical pressure device (22) extends essentially along the entire lateral extension of the counter blade, and applies dynamic pressure on each of the anvil means (19) essentially simultaneously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0400386A SE526974C2 (en) | 2004-02-18 | 2004-02-18 | List arrangement for a double wire former including a dynamic backplate carrier |
| SE0400386-9 | 2004-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2005078185A1 WO2005078185A1 (en) | 2005-08-25 |
| WO2005078185B1 true WO2005078185B1 (en) | 2005-10-13 |
Family
ID=31974264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE2005/000210 WO2005078185A1 (en) | 2004-02-18 | 2005-02-18 | Dynamic counter blade support |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE526974C2 (en) |
| WO (1) | WO2005078185A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3762991A (en) * | 1970-11-30 | 1973-10-02 | Beloit Corp | Paper machine foil support having controlled deflection |
| DE4107653A1 (en) * | 1991-03-09 | 1992-09-10 | Escher Wyss Gmbh | DRAINAGE DEVICE FOR THE WET SECTION OF A PAPER MACHINE |
| IT1320857B1 (en) * | 2000-12-12 | 2003-12-10 | Pmt Italia Spa | CONTROLAMA GROUP FOR A PAPER MANUFACTURING MACHINE. |
| GB2370046A (en) * | 2000-12-15 | 2002-06-19 | Astenjohnson Inc | Adjustable resilient blade support |
-
2004
- 2004-02-18 SE SE0400386A patent/SE526974C2/en not_active IP Right Cessation
-
2005
- 2005-02-18 WO PCT/SE2005/000210 patent/WO2005078185A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| SE526974C2 (en) | 2005-11-29 |
| SE0400386L (en) | 2005-08-19 |
| WO2005078185A1 (en) | 2005-08-25 |
| SE0400386D0 (en) | 2004-02-18 |
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