SE470100B - Drainage strip for the wire party by a paper machine - Google Patents
Drainage strip for the wire party by a paper machineInfo
- Publication number
- SE470100B SE470100B SE9101906A SE9101906A SE470100B SE 470100 B SE470100 B SE 470100B SE 9101906 A SE9101906 A SE 9101906A SE 9101906 A SE9101906 A SE 9101906A SE 470100 B SE470100 B SE 470100B
- Authority
- SE
- Sweden
- Prior art keywords
- plate
- support structure
- drainage strip
- wire
- strip according
- 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
Landscapes
- Paper (AREA)
Description
470 180 2 Redogörelse för uppfinningen. Description of the invention.
Syftet med uppfinningen har varit att åstadkomma en foil av inledningsvis definierat slag, som uppvisar en livslängd av några år, såsom vid listen enligt punkt 2 ovan, men till en betydligt lägre kostnad.The object of the invention has been to provide a foil of initially defined kind, which has a service life of a few years, as in the list according to point 2 above, but at a much lower cost.
Detta syfte har enligt uppfinningen förvånansvärt nog visat sig kunna uppnås genom att underlaget av rostfritt stål eller liknande är en tunn plåt, som stöds av en långsträckt böjstyv stödstruktur, som bildar del av foilen.According to the invention, this object has surprisingly been found to be achievable in that the substrate of stainless steel or the like is a thin plate, which is supported by an elongate flexurally rigid support structure, which forms part of the foil.
Företrädesvid kan stödstrukturen utgöras av en plastlist, vid vilken plåten är fästad.Preferably, the support structure may consist of a plastic strip, to which the plate is attached.
Genom ett sådant utförande av uppfinningen har kostnaden för foilen, under liknande driftbetingelser som enligt ovan, visat sig kunna minska till storleksordningen 30000 kronor.Through such an embodiment of the invention, the cost of the foil, under similar operating conditions as above, has been shown to be able to decrease to the order of 30,000 kronor.
Figgrbeskrivning.Fig description.
Uppfinningen skall nu beskrivas närmare med hänvisning till bifogade ritning, på vilken fig. 1 i tvärsnitt visar en första utföringsform av en foil enligt uppfinningen, och fig. 2 i ett liknade tvärsnitt visar en andra utföringsform.The invention will now be described in more detail with reference to the accompanying drawing, in which Fig. 1 shows in cross section a first embodiment of a foil according to the invention, and Fig. 2 in a similar cross section shows a second embodiment.
Utföringsformer.Embodiments.
I de båda figurerna har samma eller likverkande detaljer erhållit samma hänvisningsbeteckningar.In the two figures, the same or similar details have been given the same reference numerals.
I figurerna visas två exempel på en allmänt med 2 betecknad avvattningslist, s.k. foil, för virapartiet vid en pappersmas- kin. Foilen 2 är, på för fackmannen välkänt sätt, anbringad tvärs den med 4 betecknade övre viradelens löpriktning, antydd med pil 6. Närmare bestämt uppbärs foilen 2 av en del 8 av vira- partiets i övrigt ej visade stativ, fästad på konventionellt sätt vid delen 8 medelst ett vid 10 antytt laxstjärtförband. En övre ytbeläggning 12 på foilen 2 är därvid i kontakt med under- sidan av viradelen 4. Beläggningen 12 är på likaledes konventi- onellt sätt en mot korrosion motståndskraftig, t.ex. keramisk, beläggning på ett underlag av rostfritt stål eller liknande, vars utförande beskrivs mera i detalj nedan.The figures show two examples of a drainage strip generally designated 2, so-called foil, for the wire section at a paper machine. The foil 2 is, in a manner well known to those skilled in the art, arranged across the running direction of the upper wire part denoted by 4, indicated by arrow 6. More specifically, the foil 2 is supported by a part 8 of the wire part's otherwise not shown, attached in a conventional manner to the part 8 by means of a salmon tail connection indicated at 10. An upper surface coating 12 on the foil 2 is then in contact with the underside of the wire part 4. The coating 12 is likewise conventionally resistant to corrosion, e.g. ceramic, coating on a stainless steel or similar substrate, the design of which is described in more detail below.
Enligt uppfinningen utgöres detta underlag av en tunn plåt 14, som stöds av en långsträckt böjstyv stödstruktur 16, som f: 1330 'IDO bildar del av foilen 2.According to the invention, this substrate consists of a thin plate 14, which is supported by an elongate flexurally rigid support structure 16, which f: 1330 'IDO forms part of the foil 2.
Närmare bestämt är vid de visade utföringsformerna stödstruk- turen 16 en plastlist, vars tjocklek är stor jämfört med under- lagsplåtens 14. I praktiken kan det exempelvis röra sig om en tjocklek av 3 mm hos plåten 14 och 25 mm hos plastlisten 16.More specifically, in the embodiments shown, the support structure 16 is a plastic strip, the thickness of which is large compared with the base plate 14. In practice, for example, it may be a thickness of 3 mm of the plate 14 and 25 mm of the plastic strip 16.
Vid utföringsformen enligt fig. 1 är plåten 14 infälld i ett motsvarande format urtag i plastlistens 16 översida, medan vid utföringsformen enligt fig. 2 plåten 14 stöds utefter sina längsgående kanter av plastlisten 16. Närmare bestämt är i det senare fallet plåtens 14 länsgående kanter omböjda inåt under plåten till bildande av stödkantpartier 18 resp. 20, varvid samtidigt plåtens 14 översida är bockad till önskad i och för sig känd form.In the embodiment according to Fig. 1, the plate 14 is recessed in a correspondingly shaped recess in the upper side of the plastic strip 16, while in the embodiment according to Fig. 2 the plate 14 is supported along its longitudinal edges by the plastic strip 16. More specifically, in the latter case the longitudinal edges of the plate 14 are bent inwards under the plate to form support edge portions 18 resp. 20, at the same time the upper side of the plate 14 being bent to the desired shape known per se.
Vid båda utföringsformerna är plåten 12 (fig. 1) resp. dess kantpartier 18, 20 (fig. 2) fästad vid plastlisten 16 medelst skruvförband. Skruvförbanden innefattar muttrar 22, som är fast- svetsade på undersidan av och utefter plåten 12 mellan dess kanter (fig. 1), resp. på undersidan av och utefter kantpartier- na 18, 20 (fig.2). Med muttrarna 22 samverkar skruvar 24, som sträcker sig genom genomgående hål 26 i plastlisten 16. Muttrar- na 24 är belägna i försänkningar 28 i plastlistens 16 översida och skruvarnas 24 huvuden 30 är på motsvarande sätt belägna i försänkningar 32 i plastlistens 16 undersida.In both embodiments, the plate 12 (Fig. 1) is resp. its edge portions 18, 20 (Fig. 2) attached to the plastic strip 16 by means of screw connections. The screw connections comprise nuts 22, which are welded on the underside of and along the plate 12 between its edges (fig. 1), resp. on the underside of and along the edge portions 18, 20 (fig.2). The nuts 22 cooperate with screws 24 extending through through holes 26 in the plastic strip 16. The nuts 24 are located in recesses 28 in the upper side of the plastic strip 16 and the heads 30 of the screws 24 are correspondingly located in recesses 32 in the lower side of the plastic strip 16.
Andra utföranden av den såsom en plastlist 16 i figurerna framställda stödstrukturen är tänkbara inom ramem för uppfin- ningen. Väsentligt är att man utnyttjar uppfinningens grundtanke till att göra stödstrukturens konstruktion så billig som möj- ligt. Detta kan t.ex. ske genom ett lämpligt materialval, såsom hos plastlisten 16, och/eller genom en konstruktion där ett kanske i och för sig dyrt material utnyttjas prismässigt opti- malt. Som ett möjligt exempel på det senare alternativet kan nämnas ett utförande liknande det i fig 2, varvid emellertid plastlisten 16 är ersatt med en på väsentligen liknande sätt som plåten 14 med omvikta längskanter bockad plåt, vars konturer i övrigt t.ex. kan följa konturerna hos undersidan och kantparti- erna hos plastlisten 16 i fig. 2. Plåten 14 och den sålunda utformade stödstrukturplåten kan då hopfästas med sina omvikta längskanter anliggande mot varandra.Other embodiments of the support structure produced as a plastic strip 16 in the figures are conceivable within the scope of the invention. It is essential that the basic idea of the invention is used to make the construction of the support structure as cheap as possible. This can e.g. take place by means of a suitable choice of material, such as the plastic strip 16, and / or by a construction in which a material which is perhaps in itself expensive is used optimally in terms of price. As a possible example of the latter alternative, mention may be made of an embodiment similar to that of Fig. 2, in which, however, the plastic strip 16 is replaced with a plate bent in a substantially similar manner to the plate 14 with folded longitudinal edges, the contours of which e.g. can follow the contours of the underside and the edge portions of the plastic strip 16 in Fig. 2. The plate 14 and the support structure plate thus formed can then be fastened together with their folded longitudinal edges abutting against each other.
Claims (6)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9101906A SE470100B (en) | 1991-06-20 | 1991-06-20 | Drainage strip for the wire party by a paper machine |
JP5501181A JPH06511520A (en) | 1991-06-20 | 1992-06-17 | Foil for the screen section of paper machines |
PCT/SE1992/000437 WO1993000473A1 (en) | 1991-06-20 | 1992-06-17 | A foil for the wire section in a paper making machine |
EP92913401A EP0636193A1 (en) | 1991-06-20 | 1992-06-17 | A foil for the wire section in a paper making machine |
CA 2111102 CA2111102A1 (en) | 1991-06-20 | 1992-06-17 | A foil for the wire section in a pipe making machine |
FI935600A FI935600A (en) | 1991-06-20 | 1993-12-14 | FOIL FOER VIRAPARTIET VID EN PAPPERSMASKIN |
NO934665A NO934665L (en) | 1991-06-20 | 1993-12-17 | Foil for wire mesh in paper machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9101906A SE470100B (en) | 1991-06-20 | 1991-06-20 | Drainage strip for the wire party by a paper machine |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9101906D0 SE9101906D0 (en) | 1991-06-20 |
SE9101906L SE9101906L (en) | 1992-12-21 |
SE470100B true SE470100B (en) | 1993-11-08 |
Family
ID=20383105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9101906A SE470100B (en) | 1991-06-20 | 1991-06-20 | Drainage strip for the wire party by a paper machine |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0636193A1 (en) |
JP (1) | JPH06511520A (en) |
CA (1) | CA2111102A1 (en) |
FI (1) | FI935600A (en) |
NO (1) | NO934665L (en) |
SE (1) | SE470100B (en) |
WO (1) | WO1993000473A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI943777A (en) * | 1994-08-17 | 1996-02-18 | Valmet Paper Machinery Inc | Water removal device for a paper machine and process for making it |
DE10057553A1 (en) * | 2000-11-21 | 2002-05-23 | Voith Paper Patent Gmbh | The mounting for a shaped body with a cover at a carrier, e.g. a component at a papermaking/cardboard/tissue production machine, has complementary contours giving a tight fit between them to be locked together by a clamp |
DE10130323A1 (en) * | 2001-06-22 | 2003-01-02 | Voith Paper Patent Gmbh | Wear body in laminated construction, in particular in a paper or board machine, process for its production and its use |
FI119648B (en) * | 2007-06-12 | 2009-01-30 | Metso Paper Inc | A dewatering member for a web forming machine, a method for forming a dewatering member for use in a web forming machine and a surface portion for a dewatering member for a web forming machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3140225A (en) * | 1962-11-29 | 1964-07-07 | Dominion Eng Works Ltd | Adjustable drainage foil for paper machines |
US3520775A (en) * | 1969-07-16 | 1970-07-14 | Leslie Truxa | Foil structure for papermaking machine |
-
1991
- 1991-06-20 SE SE9101906A patent/SE470100B/en not_active IP Right Cessation
-
1992
- 1992-06-17 JP JP5501181A patent/JPH06511520A/en active Pending
- 1992-06-17 CA CA 2111102 patent/CA2111102A1/en not_active Abandoned
- 1992-06-17 EP EP92913401A patent/EP0636193A1/en not_active Withdrawn
- 1992-06-17 WO PCT/SE1992/000437 patent/WO1993000473A1/en not_active Application Discontinuation
-
1993
- 1993-12-14 FI FI935600A patent/FI935600A/en not_active Application Discontinuation
- 1993-12-17 NO NO934665A patent/NO934665L/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO934665D0 (en) | 1993-12-17 |
EP0636193A1 (en) | 1995-02-01 |
CA2111102A1 (en) | 1993-01-07 |
FI935600A0 (en) | 1993-12-14 |
NO934665L (en) | 1993-12-17 |
JPH06511520A (en) | 1994-12-22 |
SE9101906L (en) | 1992-12-21 |
FI935600A (en) | 1993-12-14 |
SE9101906D0 (en) | 1991-06-20 |
WO1993000473A1 (en) | 1993-01-07 |
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