FI92231C - Coating device dam blade - Google Patents
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- FI92231C FI92231C FI920618A FI920618A FI92231C FI 92231 C FI92231 C FI 92231C FI 920618 A FI920618 A FI 920618A FI 920618 A FI920618 A FI 920618A FI 92231 C FI92231 C FI 92231C
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Description
« 92231 Påållystyslaitteen patoterå Dammblad vid en bestrykningsanordning 5 Keksinnon kohteena on påallystyslaitteen patoterå påållystysyksikosså, joka on sovitettu levittåmåån liima- tai påållystysainefilmi telan pintaan ja joka påållys-tysyksikko kåsittåå påållystyselimen, telan pinnan, patoterån ja reunatiivisteiden rajoittaman applikointivyohykkeen, johon liima- tai påållystysaine on sovitettu johdetta-vaksi paineenalaisena kuristimen kautta.«92231 Påållystyslaitteen sealing blades Dammblad at a target coating method 5 of the invention is to påallystyslaitteen sealing blades påållystysyksikosså, which is adapted to levittåmåån adhesive or påållystysainefilmi surface of the roll and which påållys-function unit kåsittåå påållystyselimen, the roll surface, sealing blades and edge seals, bounded by the application zone to which the adhesive or påållystysaine is adapted to to be conducted under pressure through a choke.
1010
Paperin ja kartongin pintapåållystyksesså, etenkin pintaliimauksessa kåytetåån yleisesti sellaista tekniikkaa, jossa nipin muodostavien telojen pintaan levitetåån påållys-tysainefilmi påållystyslaitteilla, minkå jålkeen påållystysainefilmit on sovitettu tarttumaan påållystettåvån paperin tai kartongin pintoihin sen kulkiessa telaparin 15 muodostaman nipin låpi. Påållystyslaitteessa påållystysaine tuodaan yleenså paineenalaisena applikointivyohykkeelle, jota rajoittavat telan pinta, påållysty selin, kuten telan pintaa vasten kuormitettu påållystysterå, sauva tai vastaava, patoterå ja reunatii-visteet. Patoterå nojaa tietyllå kuormituksella vasten telan pintaa. Telat on varustettu pehmeållå pinnoitteella esim. polyuretaanipinnoitteella, joka kayton myotå kuluu siten, 20 ettå tela on tietyin vålein pinnoitettava uudelleen. Patoterån ja telan pinnan vålisellå kulmalla on suuri merkitys påållystystulokseen. Kun teloja pinnoitetaan uudelleen, niiden halkaisija muuttuu, minka johdosta olisi myos patoterån kulmaa telan pinnan suhteen voitava muuttaa halutulla tavalla. Nykyisisså ratkaisuissa ei patoterån kulmaa ole voitu muuttaa eikå sååtåå. Patoterån avulla såådetåån myos påållystysaineen 25 paluukiertoa, mikå myos aiheuttaa tarpeen patoterån kulman såådettåvyyteen. Kun uudet tai uudelleen påållystetyt telat asetetaan paikoilleen, ne ovat kylmiå. Koneen kåynnin aikana telojen låmpotila muuttuu, mikå edelleen aiheuttaa tarpeen sååtåå patoterån asentoa optimin toiminnan aikaansaamiseksi. Nykyiset ratkaisut eivåt taijoa tåhån mahdollisuutta.In the surface coating of paper and board, especially in surface sizing, a technique is generally used in which a film of coating material is applied to the surface of the nip-forming rolls by means of coating equipment, after which the film of coating material has been applied to the coating machine. In the coating apparatus, the coating agent is generally introduced under pressure into an application zone bounded by the surface of the roll, the coated back, such as a coating blade loaded against the surface of the roll, a rod or the like, a dam blade and edge liners. The dam blade rests against the surface of the roll with a certain load. The rolls are provided with a soft coating, e.g. a polyurethane coating, which wears out during use so that the roll has to be recoated at certain intervals. The angle between the dam blade and the surface of the roll is of great importance for the coating result. When the rolls are recoated, their diameter changes, as a result of which it should also be possible to change the angle of the dam blade with respect to the surface of the roll in the desired manner. In current solutions, it has not been possible to change or adjust the angle of the dam blade. The dam blade is also used to irradiate the return cycle of the coating material 25, which also makes it necessary to adjust the angle of the dam blade. When new or recoated rollers are placed, they are cold. During the operation of the machine, the temperature of the rollers changes, which further makes it necessary to adjust the position of the damper blade to achieve optimum operation. Current solutions do not realize this possibility.
Nyt esillå olevan keksinnon pååmåårånå on saada aikaan ratkaisu, jolla våltetåån enneståån tunnettuihin laitteisiin liittyvåt haittapuolet ja jolla saadaan aikaan merkittåvå 30 92231 2 parannus tekniikan tasoon nåhden. Tåmån toteuttamiseksi on keksinnolle pååasiassa tunnusomaista, ettå patoterå on asennettu koneen poikkisuuntaisen akselin suhteen kåånnettavåån pitimeen siten, etta mainittua pidintå kåånnettåesså on patoterån kulma telan pinnan suhteen såådettåvisså.It is an object of the present invention to provide a solution which avoids the disadvantages associated with previously known devices and which provides a significant improvement over the prior art. In order to achieve this, the invention is mainly characterized in that the dam blade is mounted on a holder rotatable relative to the transverse axis of the machine so that when the said holder is rotated the angle of the dam blade with respect to the surface of the roll is adjustable.
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Keksinnollå saavutetaan tekniikan tasoon nåhden useita etuja, joista voidaan mainita mm. seuraavat. Koska keksinnon mukaisessa ratkaisussa on patoterå asennettu kåånnet-tåvåån pitimeen, jolla patoterån kulmaa voidaan halutulla tavalla muuttaa, ei telojen uudelleen pinnoittaminen aiheuta mitåån olennaisia muutoksia påållystystulokseen, 10 koska patoterå voidaan aina sovittaa oikeaan asen toon kussakin tapauksessa. Patoterån asentoa voidaan keksinnossa sååtåå myos koneen kåynnin aikana, jolloin telojen låmpotilojen muutokset eivåt aiheuta muutosta påållystystulokseen. Keksinnon mukaisella ratkaisulla on my5s paluukierto yksinkertaisesti jåijestettåvisså ja såådetta-visså. Patoterån kåyttoikå saadaan pidemmåksi kuin aikaisemmin, koska se on aina 15 oikeassa asennossa telaan nåhden, jolloin terån kuluminen on olennaisesti våhåisem-påå. Keksinnon muut edut ja ominaispiirteet kåyvåt ilmi jåljempånå seuraavasta keksinnon yksityiskohtaisesta selostuksesta.The invention achieves several advantages over the prior art, of which e.g. following. Since in the solution according to the invention the dam blade is mounted on a pivot holder with which the angle of the dam blade can be changed as desired, the recoating of the rolls does not cause any substantial changes in the coating result, since the dam blade can always be adjusted to the correct position in each case. In the invention, the position of the dam blade can also be adjusted during the operation of the machine, in which case changes in the temperature of the rollers do not cause a change in the coating result. The solution according to the invention also has a return cycle that can be simply arranged and radiated. The service life of the dam blade is made longer than before, because it is always in the correct position with respect to the roll, whereby the wear of the blade is substantially less. Other advantages and features of the invention will become apparent from the following detailed description of the invention.
Seuraavaksi keksintoå selostetaan yksityiskohtaisemmin oheisen piirustuksen kuvioihin 20 viittaamalla.The invention will now be described in more detail with reference to Figures 20 of the accompanying drawing.
Kuvio 1 on tåysin kaaviomainen, sivultapåin otettu kuvanto liimapuristimesta tai vastaavasta påållystyslaitteesta, jossa on sovellettu keksinnon mukaista ratkaisua.Figure 1 is a fully schematic side view of an adhesive press or similar coating apparatus in which the solution according to the invention has been applied.
25 Kuvio 2 on suurennettu yksityiskohta kuvion 1 mukaisesta esityksestå, jossa on tarkem-min esitetty keksinnon mukaisen patoterån rakenne ja kiinnitysjåijestely.Fig. 2 is an enlarged detail of the view of Fig. 1, showing in more detail the structure and mounting arrangement of the dam steel according to the invention.
Kuvio 1 esittåå siis kaaviomaisesti liimapuristinta tai vastaavaa påållystyslaitetta, joka kåsittåå puristimen telat 1 ja 2 siten, ettå ensimmåinen tela 1 ja toinen tela 2 muodos-30 tavat keskenåån nipin N, jonka låpi paperi- tai kartonkirata W on pantu kulkemaan. Kuvion 1 mukaisessa ratkaisussa rata W ohjataan nippiin N johtotelan 3 kautta. Liima- it 3 92231 puristimessa annostellaan ensimmåisen telan pintaan ensimmåinen liimafilmi pintalii-mausyksikollå 10 ja vastaavasti toisen telan 2 pintaan annostellaan toinen liimafilmi pintaliimausyksikdllå 10a. Liimafilmit siirtyvåt telojen 1 ja 2 pinnalta telanipisså N nipin låpi kulkevaan paperi- tai kartonkirataan W.Fig. 1 thus schematically shows an adhesive press or a similar coating device comprising the press rolls 1 and 2 such that the first roll 1 and the second roll 2 form a nip N through which a paper or board web W is passed. In the solution according to Figure 1, the track W is guided to the nip N through the guide roll 3. Adhesives 3 92231 In the press, a first adhesive film is dispensed on the surface of the first roll by the surface gluing unit 10 and, correspondingly, a second adhesive film is dispensed on the surface of the second roll 2 by the surface gluing unit 10a. The adhesive films are transferred from the surface of the rollers 1 and 2 in a roll nip to a paper or board web W passing through the nip.
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Pintaliimausyksikon 10 applikointipalkki 11 on asennettu liimapuristimen runkoon 4 kååntyvåsti koneen poikkisuuntaisella nivelointiakselilla 12. Tåta vårten on liimapuristimen runkoon 4 jåijestetty korvake 13 applikointipalkin 11 niveldintiå vårten. Applikointipalkki 11 on edelleen tuettu liimapuristimen runkoon 4 kuormitussylinterillå 5, 10 joka on nivelellå 14 niveloity applikointipalkkiin 11. Mainitun kuormitussylinterin 5 avulla voidaan applikointipalkkia 11 kååntåå nivelointiakselin 12 suhteen. Edellå kuvattu rakenne on varsin tavanomainen ja nykyisin yleisesti kaytossa oleva, johon keksinnon mukaista ratkaisua voidaan soveltaa.The applicator beam 11 of the surface gluing unit 10 is mounted on the glue press body 4 pivotally by a transverse articulation shaft 12 of the machine. In this way, a lug 13 is arranged on the glue press body 4 along the articulation joints of the applicator beam 11. The applicator beam 11 is further supported on the adhesive press body 4 by a load cylinder 5, 10 articulated to the applicator beam 11 by a joint 14. By means of said load cylinder 5, the application beam 11 can be rotated relative to the articulation shaft 12. The structure described above is quite conventional and currently in general use, to which the solution according to the invention can be applied.
15 Kuviossa 2 on yksityiskohtaisemmin esitetty påallystyslaitteiston rakennetta. Kuvion 2 mukaisesti liima- tai påållystysainefilmin levitys telan 1 pintaan suoritetaan "lyhytviipy-måtekniikalla" siten, ettå pintaliimausyksikossa 10 liima tai vastaava påållystysaine syotetaan applikointivyohykkeelle 23, jota rajoittavat paallystyselin 21, patotera 22, telan 1 pinta seka reunatiivisteet (ei esitetty). Patoterån 22 avulla såadetaan ennestaan 20 tunnetusti liiman tai påållystysaineen ylijuoksua applikointivyohykkeelta 23 keraysal-taaseen (ei esitetty). Paallystyselimen 21 taakse on jåijestetty profiililista 25, joka c kuvion 2 mukaisessa suoritusmuodossa tukeutuu kuormitusletkun 25a vålityksellå påallystyselimen takapintaan. Applikointipalkkiin 11 on sopivin kiinnityselimin kiinnitet-ty sååtokarat 26, joita on useita koneen poikkisuunnassa tasaisin valein. Kutakin 25 saåtokaraa 26 vårten on applikointipalkkiin 11 asennettu karamoottorit (ei esitetty). Sååtokarat 26 on kiinnitetty profiililistaan 25 siten, ettå mainittuja sååtokaroja 26 liikuttamalla profiililistaa 25 vedetåan ja/tai tyonnetåån siten, ettå profiililista 25 saadaan taipumaan halutulla tavalla. Profiililistaa 25 nåin taivuttamalla voidaan påållys-tyselintå 21 ja nåin olien telan 1 pintaan levitettåvåå liima- tai påållystysainefilmiå 30 profiloida.Figure 2 shows in more detail the structure of the coating apparatus. According to Fig. 2, the application of the adhesive or coating film to the surface of the roll 1 is performed by the "short residence technique" so that in the surface gluing unit 10 the adhesive or similar By means of the dam blade 22, an overflow of glue or coating agent 20 from the application zone 23 is known, is known to overflow from the application zone 23 to the kerosage block (not shown). Behind the baling member 21, a profile strip 25 is arranged, which in the embodiment according to Fig. 2 rests on the rear surface of the baling member via a load hose 25a. The adjusting beam 11 is fitted with adjusting spindles 26, which are several in the transverse direction of the machine. For each of the 25 output spindles 26, spindle motors (not shown) are mounted on the applicator beam 11. The adjusting spindles 26 are fixed to the profile strip 25 in such a way that said adjusting spindles 26 are pulled and / or pushed by moving the profile strip 25 so as to cause the profile strip 25 to bend in the desired manner. By bending the profile strip 25 in this way, the coating element 21 and thus the adhesive or coating agent film 30 to be applied to the surface of the roll 1 can be profiled.
* 4 92231* 4 92231
Kuvion 2 mukaisessa ratkaisussa kåytetåån påållystyselimenå påallystyssauvaa 21, joka on pyorivåsti asennettu sauvakehtoon 21a. Påallystyselimenå voidaan luonnollises-ti kåyttåå myos tavanomaista påållystysteråå. Kuvion 2 suoritusmuodossa profiililis-taan 25 asennettu kuormitusletku 25a tukeutuu nåin olien mainitun sauvakehdon 21a 5 takapintaan. Sauvakehto 21a on tunnetulla tavalla asennettu omaan pitimeenså 24. Lai te on kuvion 2 mukaisesti varustettu koneen poikkisuuntaisella liimansyottoputkella 31, johon liima- tai påållystysaine syotetåån edullisesti mainitun syottoputken 31 molem-mista påistå. Syottoputki 31 on varustettu koneen poikkisuunnassa suurella måårållå reikiå tai vastaavia suuttimia 32, jotka muodostavat liiman tai påållystysaineen virtauk-10 seile ensimmåisen kuristimen. Liima- tai påållystysaine johdetaan nåin olien syottoput-kesta 31 mainittujen reikien tai suutinten 32 kautta syottokammioon 30, josta liima- tai påållystysaine edelleen johdetaan applikointivyohykkeelle 23 toisen kuristimen 41 kautta. Kuvion 2 mukaisessa suoritusmuodossa mainittu toinen kuristin kåsittåå koneen runkorakenteisiin 11a jåijestettyihin kiinnityskappaleisiin 42 asennetun levyn 40 tai 15 vastaavan, johon on muodostettu tarpeellinen måårå låpimeneviå reikiå 41, jotka sijaitsevat sopivan etåisyyden påasså toisistaan koneen poikkisuunnassa.In the solution according to Figure 2, a coating rod 21 is used as the coating member, which is rotatably mounted on the rod cradle 21a. Of course, a conventional coating blade can also be used as the coating member. In the embodiment of Figure 2, the load hose 25a mounted on the profile strip 25 thus rests on the rear surface of said rod cradle 21a 5. The rod cradle 21a is mounted in a known manner in its own holder 24. According to Fig. 2, the device is provided with a cross-machine direction adhesive supply pipe 31, into which an adhesive or coating agent is preferably fed from both ends of said supply pipe 31. The supply pipe 31 is provided with a large number of holes or similar nozzles 32 in the transverse direction of the machine, which form the first choke for the flow of glue or coating material. The adhesive or coating agent is thus introduced from the supply pipe 31 through said holes or nozzles 32 to the supply chamber 30, from which the adhesive or coating agent is further introduced into the application zone 23 via a second choke 41. In the embodiment according to FIG.
Keksinnon mukaisesti on patoterå 22 asennettu koneen runkorakenteisiin 1 la såådettå-våsti siten, ettå patoterån 22 ja telan 1 pinnan vålistå kulmaa voidaan halutulla tavalla 20 sååtaå. Kuvion 2 mukaisessa suoritusmuodossa tåmå on toteutettu siten, ettå patoterån . . pidin 50 kåsittåå koneen leveyden yli ulottuvan tangon, joka on asennettu koneen runkorakenteisiin 11a muodostettuun, koneen leveyden yli ulottuvaan uraan 51. Patoterån pitimeen 50 on muodostettu hahlo 54, johon patoterå 22 on sovitettu ja kiinnitetty paikalleen esim. kuvion 2 mukaisella lippamaisella kiinnittimellå 52. Pidintå 50 voidaan 25 pyorittåå urassa 51 koneen poikkisuunnassa ulottuvan akselinsa A ympåri. Vaste 53 eståå pidintå 50 nousemasta pois urasta 51. Kuvion 2 mukaisesti voidaan nåin olien patoterån 22 kulmaa sååtåå telan 1 pinnan suhteen pyorittåmållå tai kååntåmållå pidintå akselinsa A ympåri. Patoterån pitimen 50 pyårityslaitteita ei kuviossa 2 ole esitetty, mutta ne voidaan jåijeståå esimerkiksi siten, ettå pidin 50 ja patoterå 22 ovat 30 kåånnettåvisså my5s koneen kåynnin aikana. Patoterån 22 kulman såådon ansiosta ei telan 1 halkaisijan muutoksella ole olennaista vaikutusta paållystystulokseen ja edelleen il 5 922 31 on keksinnon mukaisessa ratkaisussa påallystysaineen ylijuoksu yksinkertaisesti saådettavissa.According to the invention, the dam blade 22 is mounted on the machine frame structures 11a in an adjustable manner so that the angle between the surface of the dam blade 22 and the roll 1 can be adjusted in the desired manner. In the embodiment according to Figure 2, this is realized in such a way that the dam blade. . the holder 50 comprises a rod extending across the width of the machine and mounted in a groove 51 extending across the width of the machine formed in the frame structures 11a of the machine. 50 can be rotated 25 in its groove 51 about its transverse axis A of the machine. The stop 53 prevents the holder 50 from rising out of the groove 51. According to Fig. 2, the angle of the dam blade 22 can thus be adjusted with respect to the surface of the roll 1 by rotating or turning the holder about its axis A. The rotating devices of the dam blade holder 50 are not shown in Fig. 2, but they can be arranged, for example, so that the holder 50 and the dam blade 22 are also pivotable during the operation of the machine. Due to the angle of the dam blade 22, the change in the diameter of the roll 1 has no significant effect on the coating result, and further overflow of the coating agent can be easily obtained in the solution according to the invention.
Edellå on keksintoå selitetty esimerkinomaisesti oheisen piirustuksen kuvioihin viittaa-5 malla. Keksintoå ei kuitenkaan ole rajoitettu koskemaan pelkåståån kuvioissa esitettyå esimerkkia, vaan keksinnon eri suoritusmuodot voivat vaihdella oheisissa patenttivaati-muksissa mååritellyn keksinnollisen ajatuksen puitteissa.The invention has been described above by way of example with reference to the figures of the accompanying drawing. However, the invention is not limited to the example shown in the figures, but the various embodiments of the invention may vary within the scope of the inventive idea defined in the appended claims.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FI920618A FI92231C (en) | 1992-02-13 | 1992-02-13 | Coating device dam blade |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI920618A FI92231C (en) | 1992-02-13 | 1992-02-13 | Coating device dam blade |
FI920618 | 1992-02-13 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI920618A0 FI920618A0 (en) | 1992-02-13 |
FI920618A FI920618A (en) | 1993-08-14 |
FI92231B FI92231B (en) | 1994-06-30 |
FI92231C true FI92231C (en) | 1994-10-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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FI920618A FI92231C (en) | 1992-02-13 | 1992-02-13 | Coating device dam blade |
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Country | Link |
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FI (1) | FI92231C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI93242C (en) * | 1993-03-25 | 1995-03-10 | Valmet Paper Machinery Inc | Method and apparatus for limiting the coating width and / or preventing damage to the roll ends during coating or surface sizing of paper or similar web material |
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1992
- 1992-02-13 FI FI920618A patent/FI92231C/en active IP Right Grant
Also Published As
Publication number | Publication date |
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FI92231B (en) | 1994-06-30 |
FI920618A0 (en) | 1992-02-13 |
FI920618A (en) | 1993-08-14 |
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Owner name: VALMET PAPER MACHINERY INC. |
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BB | Publication of examined application |