EP1121317A1 - Zugwalze für bahnförmige materialien, insbesondere für papier- oder kartonbahnen, kunststoff- oder metallfolien - Google Patents
Zugwalze für bahnförmige materialien, insbesondere für papier- oder kartonbahnen, kunststoff- oder metallfolienInfo
- Publication number
- EP1121317A1 EP1121317A1 EP99948837A EP99948837A EP1121317A1 EP 1121317 A1 EP1121317 A1 EP 1121317A1 EP 99948837 A EP99948837 A EP 99948837A EP 99948837 A EP99948837 A EP 99948837A EP 1121317 A1 EP1121317 A1 EP 1121317A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum chamber
- pressure
- vacuum
- web
- jacket
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/12—Advancing webs by suction roller
Definitions
- Draw roller for web-like materials especially for paper or cardboard webs, plastic or metal foils
- the invention relates to a pull roller for web-shaped materials, in particular for paper or cardboard webs, plastic or metal foils, which has a jacket which can be driven to rotate around a fixed inner component and which has air passage openings on its entire jacket surface.
- the inside of the jacket is divided into segment-shaped chambers, of which those in the looping area
- Path arranged chamber can be acted upon with negative pressure. Due to the negative pressure, the web is sucked onto the roller in order to increase the adhesive forces and thus be able to introduce greater tensile forces into the web.
- Traction rollers of this type are preferably used in systems for the production and / or refinement of web-shaped materials (paper or cardboard webs, plastic or metal foils) in areas in which force can only be applied to one web side, for example because liquid coating material on the other web side is applied (DE-AS 14 74 973).
- the invention has for its object to improve a pull roller of the type described in such a way that large tensile forces can be transmitted even at high web speeds.
- the upstream second vacuum chamber enables the air boundary layer attached to the web to be suctioned off to the extent that the contact area remains sufficiently large to be able to transmit the required tensile forces.
- a second object of the invention is to provide a draw roller, the surface of which can be easily adapted to different web materials, speeds and / or web widths.
- FIG. 1 shows a cross section through the pull roller
- FIG. 2 shows a longitudinal section in the direction of the axis of rotation
- FIG. 3 shows the detachable parts and as an assembly drawing
- FIG. 4 shows the elements for setting the required pressure conditions in the individual chambers as a circuit diagram. Ways of Carrying Out the Invention
- the traction roller according to the invention is used in systems for the production and / or refinement of web-shaped materials (paper or cardboard webs, plastic or metal foils) in order to pull the web through individual system areas at a high, precisely defined speed and / or a defined web tension .
- Such systems are, for example, coating, impregnating, laminating or laminating systems or systems for the production of plastic films. It can be used advantageously in all areas of the system in which force can only be applied on one side of the web, for example behind application units for coating material, where no force can be applied to the coated side of the web. In these system areas, it is preferably used as a master drive, which specifies the web speed exactly, or as an actuator for controlling the web tension.
- the pull roller contains a jacket 1 which can be driven in rotation and has air passage openings on its entire jacket surface.
- the air permeability of the jacket 1 is brought about by a large number of bores, by production from a porous material, etc.
- the outer circumferential surface can be coated with a wear-resistant and / or the friction to the web 2 rubber, ceramic, etc. coating.
- the surface is preferably covered with a plastic or metal screen.
- the jacket 1 is made as thin-walled as possible from steel, aluminum or from a fiber-reinforced plastic material (GRP or CFRP composite) in order to reduce its weight and its inertia.
- the interior of the casing 1 is divided into chambers 7, 8, 9 by radial partitions 3, 4, 5, 6 extending over the length of the roll, in which separate pressure ratios can be set in each case.
- the partitions 3, 4, 5, 6 are part of an inner component which is stationary during operation and have at their radial ends friction-free seals 10 which extend as far as the inner surface of the jacket 1.
- the inner component preferably consists of an outer tube 11, which extends coaxially to the roller axis, on which the dividing walls 3, 4, 5, 6 are fastened and extend radially outward, and which into a corresponding number of distribution chambers 12, 13, 14 is divided, which are connected via openings 15, 16, 17 with the vacuum chambers 7, 8, 9.
- the distribution chambers 12, 13, 14 are each connected to an underpressure or pressure line 18, 19, 20 at one axial end of the tube 11 in order to set the pressure conditions in the individual chambers 7, 8, 9, which are explained in more detail below.
- the entire inner component is rotatably mounted about the roller axis in order to be able to adjust the position of the segment-shaped chambers 7, 8, 9 relative to the wrapping area of the web 2.
- the inner component is preferably rotated by a motor with a servomotor which is controlled by a control or regulating device.
- the control or regulating device positions the inner component according to predetermined algorithms, which contain certain physical properties of the web, for example its porosity, and certain operating variables, for example the web speed, as parameters.
- the distribution chamber 14 is formed by an inner tube 21 which is arranged coaxially in the outer tube 11 and is connected to the chamber 9 via a connecting piece. It is connected to the pressure line 20, while the distribution chambers 12, 13 connected to the vacuum chambers 7, 8 are connected to the vacuum lines 18, 19.
- the distribution chambers 12, 13 are formed between the outer tube 11 and the inner tube 21 by means of corresponding partition walls 22.
- the traction roller according to the invention it is essential for the traction roller according to the invention that there are two vacuum chambers 7, 8 which can be acted upon with vacuum, the vacuum of which can be set independently of one another.
- the first vacuum chamber 7 comprises an angular range of at least 10 °, preferably 20 ° to 90 °
- the second vacuum chamber 8 comprises an angular range of at least 20 °.
- the second comprises
- Vacuum chamber 8 has a larger angular range than the first vacuum chamber 7.
- the total suction angle of both vacuum chambers 7, 8 is at least as large as the wrap angle of the web 2, which is 30 ° to 240 °.
- the second vacuum chamber 8 is followed in the interior of the jacket 1 by a pressure chamber 9 in which an overpressure is generated.
- the air emerging in the area of the pressure chamber 9 due to the excess pressure through the openings in the jacket 1 supports the detachment of the web 2 from the roller.
- the partition 5 between the vacuum chamber 8 and the pressure chamber 9 is therefore arranged along the surface line where it is desired to detach the web 2 from the roller.
- the inside of the jacket 1 is not connected in the segment 23 between the pressure chamber 9 and the first vacuum chamber 7 either to a compressed air supply or to a vacuum line, since this area is neither wrapped by the web 2 nor is it acted on the web 2.
- the segment 23 has on both end faces
- the inner component with the dividing walls 3, 4, 5, 6 is set in such a way that the first vacuum chamber 7 is located in the area in which the web 2 runs onto the roller.
- the setting is preferably carried out in such a way that the partition 4 between the two vacuum chambers 7, 8 is in the region of the desired run-up line.
- the second vacuum chamber 8 is designed and set so that it covers the looping area of the web 2.
- the pressure chamber 9 then follows in the run-off area of the web 2.
- a negative pressure between 1 KPa and 10 KPa is set in the wrapped area in the second vacuum chamber 8, which depends on the sensitivity of the material and the web speed.
- a larger negative pressure is set in the upstream chamber 7.
- the pressure difference between the two chambers 7, 8 is at least 0.5 KPa, preferably 1 KPa to 10 KPa.
- the greater negative pressure in the first vacuum chamber 7 has the effect that when the web 2 runs onto the roller, the air boundary layer attached to the web 2 is reduced. This prevents the web 2 from floating on the attached air cushion and thus prevents the web 2 / roller contact line from shifting, with the result that the contact area is reduced.
- the independent adjustability of the negative pressure in the vacuum chamber 7 enables it to be tracked as a function of the web speed in order to set constant traction conditions.
- the desired negative pressure in the first vacuum chamber 7 is preferred as a function of the web speed and / or the Web tension automatically set by a regulating or control device, for example by actuating a regulating valve in the feed line 18 to the vacuum chamber 7.
- a regulating or control device for example by actuating a regulating valve in the feed line 18 to the vacuum chamber 7.
- FIG. 2 shows a longitudinal section transverse to the web running direction through a particularly advantageous constructive embodiment of a pull roller according to the invention.
- This design makes it very easy to replace the jacket in order to adapt the pull roller to different web materials and / or different web widths. It can thus coats 1 with adapted surfaces (rubber, ceramic, friction coatings, etc.), special designs and arrangements of the passage openings and / or special air distribution mechanisms (air guide grooves, plastic or metal sieves, etc.) and / or with different widths of the suction surfaces for adaptation the web width can be used.
- the inner tube 21 and the outer tube 11 extend on the connection side in the axial direction beyond the area of the jacket 1 and are rotatably mounted in the frame of the system at their end (not shown in FIG. 2).
- the inner tube 21 is connected there to the compressed air line 20 and the divided outer tube 11 to the two vacuum lines 18, 19.
- the inner tube 21 has a pin 24 which closes the pressure chamber 14 and over which a radial bearing 25 is drawn, which is fitted into a recess in a bearing part 26.
- the bearing part 26 is rotatably mounted in the frame 27 of the system via a radial bearing 28 and connected to a rotary drive (not shown) via a torsionally rigid coupling.
- annular side wall 29 is screwed radially on the outside, the outside diameter of which corresponds to the outside diameter of the jacket 1.
- the jacket 1 is detachably screwed with its front end.
- the pressure-tight area is delimited at both axial ends by likewise annular sealing walls 30, 31, which are firmly connected to the inner component and extend to the inner surface of the jacket 1.
- the sealing wall 30 on the drive side is attached to the outside of the inner tube 21, the sealing wall 31 on the connection side on the outside of the outer tube 11.
- the partition walls 3, 4, 5, 6 are also fastened with their axial ends.
- the bearing of the casing 1 contains a radial bearing 32, the inner race of which is firmly seated on the outer tube 11.
- the outer race is fixedly connected to an annular bearing part 33, over which a second annular side wall 34 is drawn and is detachably screwed thereon.
- connection-side end of the casing 1 is fastened to the annular side wall 34.
- the side wall 34 also has through bores 37, which enable pressure equalization from the outside into the area between it and the sealing wall 31 and thus via the bores 35 also in the segment 23 and in the area between the sealing wall 30 and the side wall 29.
- the setting of the inner component consisting of the tubes 11, 21, the sealing walls 30, 31 and the partition walls 3, 4, 5, 6, not shown in FIG. 2, is carried out in such a way that it rotates about the radial bearings 25, 32 into the required position becomes.
- the casing 1 rotates around the two radial bearings 28, 32.
- the casing 1 can be changed very easily, as shown in the assembly drawing in FIG. 3:
- the casing 1 is unscrewed from the side wall 29 on the drive side and the side wall 34 is unscrewed from the bearing part 33 on the connection side.
- the jacket 1 with the firmly connected side wall 34 can then be pulled off in the axial direction and exchanged for a jacket 1 of a different design.
- the design of the casing 1 with the annular side wall 34 as an exchange part has the further advantage that bores can be drilled into the side wall 34 prior to installation.
- FIG. 4 shows the preferred device as a circuit diagram, with which the required pressure conditions are set in the vacuum chambers 7, 8 and the pressure chamber 14. This device only requires a controllable blower 38.
- each vacuum or pressure chamber 7, 8, 9 to a separate suction or pressure blower via the lines 18, 19, 20.
- each vacuum line 18, 19 which leads to a vacuum chamber 7, 8 contains a controllable valve 39, 40, with which the required negative pressure in each vacuum chamber 7, 8 can be regulated.
- the two vacuum lines 18, 19 are brought together to form a line which is connected to the suction side of the blower 38.
- the line 41 connected to the pressure side of the blower 38 contains a further pressure control valve 42 before it leads outside via a silencer 43.
- the pressure line 20 leading to the pressure chamber 9 is connected to the pressure line 41 and also contains a pressure control valve 44 in order to be able to regulate the excess pressure in the pressure chamber 9.
- the pressure ratios in the individual chambers are preferably set automatically by means of the regulating or control device by which the valves 39, 40, 42, 44 are controlled as a function of the web speed and / or the web tension.
Landscapes
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Advancing Webs (AREA)
- Laminated Bodies (AREA)
- Rolls And Other Rotary Bodies (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19847799 | 1998-10-16 | ||
DE19847799A DE19847799A1 (de) | 1998-10-16 | 1998-10-16 | Zugwalze für bahnförmige Materialien, insbesondere für Papier- oder Kartonbahnen, Kunststoff- oder Metallfolien |
PCT/EP1999/007075 WO2000023366A1 (de) | 1998-10-16 | 1999-09-23 | Zugwalze für bahnförmige materialien, insbesondere für papier- oder kartonbahnen, kunststoff- oder metallfolien |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1121317A1 true EP1121317A1 (de) | 2001-08-08 |
EP1121317B1 EP1121317B1 (de) | 2002-08-07 |
Family
ID=7884724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99948837A Expired - Lifetime EP1121317B1 (de) | 1998-10-16 | 1999-09-23 | Zugwalze für bahnförmige materialien, insbesondere für papier- oder kartonbahnen, kunststoff- oder metallfolien |
Country Status (9)
Country | Link |
---|---|
US (1) | US6585139B1 (de) |
EP (1) | EP1121317B1 (de) |
JP (1) | JP2002527320A (de) |
AT (1) | ATE221847T1 (de) |
CA (1) | CA2343908A1 (de) |
DE (2) | DE19847799A1 (de) |
ES (1) | ES2182572T3 (de) |
NO (1) | NO20011651D0 (de) |
WO (1) | WO2000023366A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7040038B1 (en) * | 1998-09-02 | 2006-05-09 | Metso Paper Usa, Inc. | Apparatus for processing permeable or semi-permeable webs |
US6625853B2 (en) | 2001-09-17 | 2003-09-30 | Sca Hygiene Products Ab | Method of compressing fibrous bodies |
SE520009C2 (sv) * | 2001-09-17 | 2003-05-06 | Sca Hygiene Prod Ab | Förfarande och anordning för komprimering av fiberkroppar |
DE10257496B3 (de) * | 2002-12-10 | 2004-10-14 | Bachofen & Meier Ag | Vakuum-Kühlwalze |
US11230453B2 (en) * | 2003-02-18 | 2022-01-25 | Körber Tissue Fold S.R.L. | Roller for conveying a web or sheet of paper in paper converting machines and conveying method thus obtained |
FI6411U1 (fi) * | 2004-07-02 | 2004-10-12 | Metso Paper Inc | Verhopäällystin |
SE527838C2 (sv) * | 2004-07-02 | 2006-06-20 | Sandvik Intellectual Property | En rotationskniv och en rotationsknivanordning försedd med en dylik rotationskniv |
US7367264B2 (en) * | 2004-07-30 | 2008-05-06 | Beaudry Wallace J | Method and apparatus for treating sheets including a vacuum roller for retaining sheets in curved configuration |
US7955550B2 (en) * | 2007-04-20 | 2011-06-07 | Lrm Industries International, Inc | Method of preparing a molded article |
US8602198B2 (en) * | 2010-12-17 | 2013-12-10 | Kimberly-Clark Worldwide, Inc. | Vacuum roll and method of use |
US20120157279A1 (en) * | 2010-12-20 | 2012-06-21 | Uwe Schneider | Process and Apparatus for Joining Flexible Components |
US8852068B2 (en) | 2011-04-21 | 2014-10-07 | C.G. Bretting Manufacturing Co., Inc. | Tube in a tube mechanical folding roll |
CN102653161A (zh) * | 2012-05-09 | 2012-09-05 | 中国人民银行印制科学技术研究所 | 一种印刷滚筒 |
US8939445B2 (en) | 2013-05-30 | 2015-01-27 | Kimberly-Clark Worldwide, Inc. | Vacuum roll with internal rotary valve |
EP3322844B1 (de) * | 2015-07-13 | 2019-05-01 | Oerlikon Textile GmbH & Co. KG | Kühltrommel zum abkühlen eines fadenstopfens |
CN109399312A (zh) * | 2018-12-25 | 2019-03-01 | 美塞斯(珠海)工业自动化设备有限公司 | 一种真空辊 |
CN110143047B (zh) * | 2019-07-03 | 2024-06-14 | 万军霞 | 一种冷烫承印辊 |
DE102019218265A1 (de) * | 2019-11-26 | 2021-05-27 | Multivac Sepp Haggenmüller Se & Co. Kg | Verpackungsmaschine mit abgedichteter umlenkrolle |
EP4192773B1 (de) * | 2020-11-20 | 2024-10-16 | Valmet Tissue Converting S.r.l. | Saugwalze einer papier- oder papierbahn in einer papierverarbeitungsmaschine |
CN113788350A (zh) * | 2021-09-24 | 2021-12-14 | 绍兴市柯桥区伟峰纺织品有限公司 | 弹性布料传送装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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US2199455A (en) * | 1935-09-09 | 1940-05-07 | Beloit Iron Works | Suction roll |
US2929450A (en) * | 1957-07-18 | 1960-03-22 | Escher Wyss Gmbh | Suction roll for drying pulp webs, more especially in the paper and cellulose industry |
US2995186A (en) * | 1960-04-22 | 1961-08-08 | Pulp Paper Res Inst | Apparatus for making formed fibrous webs |
DE1474973B2 (de) | 1966-08-01 | 1970-08-13 | Agfa-Gevaert Ag, 5090 Leverkusen | Saugwalze zum Übertragen eines Drehmomentes |
US3515637A (en) * | 1967-03-27 | 1970-06-02 | Allis Chalmers Mfg Co | Papermaking machine press section |
US3902960A (en) * | 1972-08-30 | 1975-09-02 | Olinkraft Inc | Water control system for suction rolls in papermaking machines |
DE3100814A1 (de) * | 1981-01-13 | 1982-07-29 | Günter O. 7432 Urach Stumpf | Vorgabewalze |
CH665168A5 (de) * | 1983-09-12 | 1988-04-29 | Paul Aschwanden | Saugwalze zum foerdern von bahn- oder bogenfoermigem material. |
US4838982A (en) * | 1987-06-26 | 1989-06-13 | H.G. Weber & Co., Inc. | Patch applicator vacuum cylinder for web material |
DE3914761A1 (de) * | 1989-03-08 | 1990-11-15 | Voith Gmbh J M | Leitwalze fuer ein poroeses band, beispielsweise fuer ein trockensieb einer papiermaschine |
DE3913292A1 (de) * | 1989-04-22 | 1990-10-25 | Voith Gmbh J M | Zylinder zur fuehrung von laufenden warenbahnen |
US5230456A (en) * | 1989-08-30 | 1993-07-27 | De La Rue Giori, S.A. | Draw-roller unit for a web-printing machine |
US5232141A (en) * | 1989-11-01 | 1993-08-03 | Basf Magnetics Gmbh | Suction roller arrangement for transporting web-form material |
FI83977C (fi) * | 1989-11-06 | 1991-09-25 | Valmet Paper Machinery Inc | Gapformare i pappersmaskin. |
DE4042168A1 (de) * | 1990-12-29 | 1992-07-09 | Goebel Gmbh Maschf | Walze mit kraefteausuebenden bereichen |
JP2630870B2 (ja) * | 1991-07-17 | 1997-07-16 | 株式会社ベルマティック | サクションロール |
DE9205154U1 (de) * | 1992-04-14 | 1992-06-04 | Florian Bauer GmbH & Co. Maschinenbau KG, 5030 Hürth | Saugwalze |
EP1050621A3 (de) * | 1999-05-07 | 2001-03-28 | Voith Paper Patent GmbH | Vorrichtung zur Behandlung einer Materialbahn |
-
1998
- 1998-10-16 DE DE19847799A patent/DE19847799A1/de not_active Withdrawn
-
1999
- 1999-09-23 DE DE59902294T patent/DE59902294D1/de not_active Expired - Lifetime
- 1999-09-23 WO PCT/EP1999/007075 patent/WO2000023366A1/de active IP Right Grant
- 1999-09-23 ES ES99948837T patent/ES2182572T3/es not_active Expired - Lifetime
- 1999-09-23 AT AT99948837T patent/ATE221847T1/de not_active IP Right Cessation
- 1999-09-23 US US09/807,336 patent/US6585139B1/en not_active Expired - Fee Related
- 1999-09-23 EP EP99948837A patent/EP1121317B1/de not_active Expired - Lifetime
- 1999-09-23 JP JP2000577105A patent/JP2002527320A/ja active Pending
- 1999-09-23 CA CA002343908A patent/CA2343908A1/en not_active Abandoned
-
2001
- 2001-04-02 NO NO20011651A patent/NO20011651D0/no unknown
Non-Patent Citations (1)
Title |
---|
See references of WO0023366A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2000023366A1 (de) | 2000-04-27 |
CA2343908A1 (en) | 2000-04-27 |
EP1121317B1 (de) | 2002-08-07 |
NO20011651L (no) | 2001-04-02 |
DE59902294D1 (de) | 2002-09-12 |
ES2182572T3 (es) | 2003-03-01 |
DE19847799A1 (de) | 2000-04-20 |
JP2002527320A (ja) | 2002-08-27 |
US6585139B1 (en) | 2003-07-01 |
NO20011651D0 (no) | 2001-04-02 |
ATE221847T1 (de) | 2002-08-15 |
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