NO148543B - CIRCUIT SHAPE FILTER ELEMENT AND PROCEDURE FOR PREPARING THIS. - Google Patents
CIRCUIT SHAPE FILTER ELEMENT AND PROCEDURE FOR PREPARING THIS. Download PDFInfo
- Publication number
- NO148543B NO148543B NO790548A NO790548A NO148543B NO 148543 B NO148543 B NO 148543B NO 790548 A NO790548 A NO 790548A NO 790548 A NO790548 A NO 790548A NO 148543 B NO148543 B NO 148543B
- Authority
- NO
- Norway
- Prior art keywords
- adhesive
- folding
- filter
- web
- circular
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 3
- 239000000853 adhesive Substances 0.000 claims description 51
- 230000001070 adhesive effect Effects 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 description 3
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/111—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/12—Pleated filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
- Filters And Equalizers (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
Oppfinnelsen vedrører sirkelskiveformet filterele-men av parallelt foldet, banelignende filtermateriale med på begge sider anordnede klebetråder. The invention relates to a circular disk-shaped filter element of parallel-folded, web-like filter material with adhesive threads arranged on both sides.
Det er tidligere kjent sirkelskiveformede filterelementer av parallelt foldet, banelignende filtermateriale, There are previously known circular disc-shaped filter elements of parallel folded, web-like filter material,
i hvis folder én eller flere klebetråder forløper på begge .sider på tvers av foldekantene, og det således at det klebe-middel som danner klebetrådene trenger mer eller mindre dypt inn i foldelommene (DT-PS 1299534). Det er nærliggende at det ved dette filterelement er nødvendig med en forholdsvis stor mengde klebemasse som også ufordelaktig reduserer fil-teroverflaten. in whose folds one or more adhesive threads run on both sides across the fold edges, so that the adhesive that forms the adhesive threads penetrates more or less deeply into the fold pockets (DT-PS 1299534). It is obvious that this filter element requires a relatively large amount of adhesive, which also unfavorably reduces the filter surface.
Det er ytterligere kjent et sirkelrundt filterelement bestående av foldepapirstrimler som for avstivning av filterelementet og som avstandsholdere har et antall klebestrimler som på begge sider og parallelt med folderetningen forløper i foldelommene. Etter påføring av klebestrimmel-antallet på begge sider og etter folding av papirstrimlen skjæres selve filterelement ut av papirstrimlen som rondel (DT-PS 1093188). Denne kjente utførelse av et filterelement krever på den ene side likeledes en forholdsvis stor klebe-middelmengde for å sikre den nødvendige avstivning av foldene i papirhanen og den påkrevde innbyrdes avstand mellom foldene, og på den- annen side en tidkrevende fremstilling fordi klebestrimler må påføres over hele filterflaten parallelt med folderetningen i filterlommene. Utover dette vil herved, på grunn av det store antall klebestrimler som på begge sider i små avstander må påføres over hele filterflaten, den aktive filteroverflate som er bestemmende for gjennomgangen bli ufordelaktig minsket. It is further known a circular filter element consisting of folding paper strips which, for stiffening the filter element and as spacers, have a number of adhesive strips which on both sides and parallel to the folding direction extend into the folding pockets. After applying the number of adhesive strips on both sides and after folding the paper strip, the filter element itself is cut out of the paper strip as a circle (DT-PS 1093188). This known design of a filter element, on the one hand, also requires a relatively large amount of adhesive to ensure the necessary stiffening of the folds in the paper tap and the required mutual distance between the folds, and on the other hand, a time-consuming production because adhesive strips must be applied over the entire filter surface parallel to the folding direction in the filter pockets. In addition to this, due to the large number of adhesive strips which must be applied on both sides at small distances over the entire filter surface, the active filter surface which is decisive for the passage will be disadvantageously reduced.
Den oppgave som ligger til grunn for oppfinnelsen er å tilveiebringe et sirkelskiveformet filterelement av denne art og utforme det således at foldene til det sirkelskiveformede filterelement etter utskjæring fra det banelignende filtermateriale holder seg uforandret i en bestemt avstand uten at det er anordnet avstandsholdere som er støpt inn i de enkelte foldelommer. The task underlying the invention is to provide a circular disk-shaped filter element of this kind and design it in such a way that the folds of the circular disk-shaped filter element, after being cut out of the web-like filter material, remain unchanged for a certain distance without spacers being cast in in the individual folding pockets.
Denne oppgave blir løst ifølge oppfinnelsen ved This task is solved according to the invention by
at det i en tilsvarende avstand fra filterets sirkelskiveformede ytterkontur på dets over- og underside hele veien rundt er anordnet en respektiv klebering, at kleberingen er anordnet slik på filterelementets foldekanter at ikke noen klebemasse trenger inn i foldelommene og at kleberingene holder de ved siden av hverandre liggende folder i en forutbestemt stilling. that at a corresponding distance from the filter's circular disc-shaped outer contour on its upper and lower side all the way around, a respective adhesive ring is arranged, that the adhesive ring is arranged on the folding edges of the filter element in such a way that no adhesive compound penetrates into the folding pockets and that the adhesive rings hold them next to each other horizontal folds in a predetermined position.
For å kunne fremstille et slikt sirkelskiveformet filterelement vedrører oppfinnelsen derfor også 'en fremgangsmåte som er karakterisert ved at det fra en foldemaskin kommende foldede, banelignende filtermateriale tilføres til en opptaksramme som er utformet som matrise for utskjæring av sirkelskiveformede filterelementer og har tilsvarende over rammens påleggsflate fordelte sirkelrunde åpninger, at den i den således utformede opptaksramme innførte filterbane innspennes mellom de i opptaksrammen anordnede bevegelige motholdere, at deretter opptaksrammen med filterbanen føres over et ristebord, hvorved den innspente, foldede filterbane innretter seg med sine folder etter en forutbestemt foldeavstand, at det etter innrettingen over foldekantene til den første foldebaneoverflate påsprøytes kleberinger på en slik måte at disse vil komme til å ligge innenfor matriseåpningene, at etter ferdig påsprøyting av kleberingene opptaksrammen dreies 180° for påsprøyting av ytterligere kleberinger på den andre foldebaneoverflate, at etter påsprøytingen av samtlige kleberinger den med matriseåpningen samvirkende koppkniv skjærer ut sirkelskiveformede filterelementer av filtermaterialet, hvorved kleberingene arreterer foldekantene innbyrdes innenfor skjærelinjen på begge sider, og at det for påførin-gen av kleberingene på foldebaneoverflåtene er anordnet en sprøyteanordning som går over foldebaneoverflåtene med en slik sirkelbanehastighet at kleberingene er anordnet på foldekantene uten at klebemasser trenger inn i foldelommene. In order to be able to produce such a circular disk-shaped filter element, the invention therefore also relates to a method which is characterized in that the folded, web-like filter material coming from a folding machine is supplied to a recording frame which is designed as a matrix for cutting out circular disk-shaped filter elements and has correspondingly distributed over the frame's application surface circular openings, that the filter web introduced in the recording frame designed in this way is clamped between the movable counterholders arranged in the recording frame, that the recording frame with the filter web is then passed over a shaking table, whereby the clamped, folded filter web aligns with its pleats according to a predetermined folding distance, that after the alignment above the folding edges of the first folding path surface, adhesives are sprayed on in such a way that these will come to lie within the matrix openings, that after finishing spraying the adhesives, the recording frame is turned 180° for spraying additional adhesives on the other folding path surface, that after the application of all the adhesives, the cup knife interacting with the matrix opening cuts out circular disc-shaped filter elements from the filter material, whereby the adhesive rings lock the folding edges together within the cutting line on both sides, and that for the application of the adhesive rings on the folding path surfaces, a spraying device is arranged that moves over the fold path surfaces with such a circular path speed that the adhesive rings are arranged on the fold edges without adhesive masses penetrating into the fold pockets.
De fordeler som er oppnådd ved hjelp av oppfinnelsen består spesielt i at det ikke er påkrevd med noen avstandsholdere som fyller opp i foldelommene, således at på den ene side den disponible aktive filteroverflate økes ve-sentlig utover det ved kjente filterelementer ellers vanlige mål og at det på den annen side behøves mindre klebemasse for ytterligere å holde sammen de ved siden av hverandre liggende foldekanter. Utover dette sikres imidlertid også ved filterelementets utforming i henhold til oppfinnelsen, nemlig ved påføringen av kleberingene på begge sider av fil-teroverflåtene i en tilsvarende nær avstand fra den skjære-linje som skal anordnes av det foldede filtermateriale under utskjæringen av de sirkelformede filterelementer langs skjærelinjen ikke av skjæretrykket kan henholdsvis ledes eller presses bort til siden, hvilket betyr at det etter skjæringen foreligger upåklagelig sirkelformede filterelementer. The advantages that have been achieved with the help of the invention consist in particular in that no spacers are required that fill up the fold pockets, so that on the one hand the available active filter surface is substantially increased beyond the otherwise usual dimensions of known filter elements and that on the other hand, less adhesive is needed to further hold the adjacent folding edges together. In addition to this, however, the design of the filter element according to the invention is also ensured, namely by the application of the adhesive rings on both sides of the filter surfaces at a correspondingly close distance from the cutting line to be arranged by the folded filter material during the cutting of the circular filter elements along the cutting line cannot be guided or pushed to the side by the cutting pressure, which means that after cutting there are impeccably circular filter elements.
Oppfinnelsen skal i det følgende nærmere forklares ved hjelp av et utførelseseksempel som er fremstilt på teg-ningene, som viser: fig. 1 et skjematisk riss av et filterelement ifølge oppfinnelsen, In the following, the invention will be explained in more detail with the help of an embodiment shown in the drawings, which show: fig. 1 a schematic view of a filter element according to the invention,
fig. 2 et grunnriss ifølge fig. 1, fig. 2 a ground plan according to fig. 1,
fig. 3 et perspektivriss av en foldet filterbane fig. 3 a perspective view of a folded filter path
i en opptaksramme, in a recording frame,
fig. 4 et perspektivisk delriss av opptaksrammen, hvorved filterbanen for påsprøyting av kleberingen på en første filterbaneoverflate er innspent mellom to motholdere, fig. 4 a partial perspective view of the recording frame, whereby the filter web for spraying the adhesive on a first filter web surface is clamped between two counter holders,
fig. 5 et perspektivisk delriss ifølge fig. 4, hvorved opptaksrammen for påsprøyting av ytterligere kleberinger på den andre filterbaneoverflate er dreid med 180°C, og fig. 5 a partial perspective view according to fig. 4, whereby the recording frame for spraying additional adhesives onto the second filter web surface is rotated by 180°C, and
fig. 6 et perspektivisk delriss ifølge fig. 5, hvorved en koppkniv skjærer sirkelskiveformede filterelementer ut av filterbanen. fig. 6 a partial perspective view according to fig. 5, whereby a cup knife cuts circular disc-shaped filter elements out of the filter web.
Som fig. 1 og 2 viser består det sirkelskiveformede filterelement 1 i det vesentlige av foldet filtermateriale, hvor det på over- og undersiden i nærheten av ytterkonturen la er anordnet rundt omkring forløpende kleberinger 2 som inngår en intim forbindelse med foldekantene lb. Fig. 3 viser en foldet filterbane 3 som i retning av pilen A kommer fra en ikke vist foldemaskin og som løper inn i en U-formet opptaksramme 4. Opptaksrammen 4 har to bevegelige motholdere 5, mellom hvilke filterbanen 3 spennes inn i opptaksrammen. Selve opptaksrammen har, fordelt over sin påleggingsflate 4a, et antall sirkelrunde åpninger 4b som svarer til ytterkonturen av det filterelement 1 som skal fremstilles. Fig. 4 viser påsprøytingen av kleberingene 2 på den første filterbaneoverflate ved hjelp av en bretteanord-ning 6, mens fig. 5 viser opptaksrammen 4 med innspent filterbane 3 og hvor opptaksrammen er dreid 180° for påsprøyt-ing av den andre klebering på den andre filterbaneoverflate, og det nøyaktig overfor den første klebering. Kleberingene 2 består av en tynn klebetråd 2a som danner en slags tråkletråd. As fig. 1 and 2 show, the circular disc-shaped filter element 1 essentially consists of folded filter material, where on the upper and lower side near the outer contour la there are continuous adhesives 2 arranged all around which enter into an intimate connection with the folding edges lb. Fig. 3 shows a folded filter web 3 which, in the direction of arrow A, comes from a folding machine not shown and which runs into a U-shaped recording frame 4. The recording frame 4 has two movable counterholders 5, between which the filter web 3 is clamped into the recording frame. The recording frame itself has, distributed over its application surface 4a, a number of circular openings 4b which correspond to the outer contour of the filter element 1 to be manufactured. Fig. 4 shows the application of the adhesive rings 2 on the first filter web surface by means of a folding device 6, while Fig. 5 shows the recording frame 4 with clamped filter web 3 and where the recording frame is turned 180° for spraying the second adhesive ring on the second filter web surface, exactly opposite the first adhesive ring. The adhesives 2 consist of a thin adhesive thread 2a which forms a kind of basting thread.
Sprøyteanordningen 6 går svarende til den klebering som skal påsprøytes, sirkelbaneformet over den hver gang aktuelle filterbaneoverflate og plasserer klebetråden 2a således på foldekantene lb at klebetråden ikke trenger inn i filterelementets 1 foldelommer 1c og derved stenger disse (fig. 1 og 2). For å kunne oppnå dette skal sprøyte-anordningens 6 sirkelbanehastighet velges tilsvarende. The spray device 6 moves in a circular path, corresponding to the adhesive to be sprayed, over the respective filter web surface and places the adhesive thread 2a on the folding edges lb in such a way that the adhesive thread does not penetrate into the folding pockets 1c of the filter element 1 and thereby close these (fig. 1 and 2). In order to achieve this, the spray device's 6 circular path speed must be selected accordingly.
Etter at begge sider av filterbaneoverflaten er forsynt med sirkelringer 2 plasseres en roterende koppkniv 7 over kleberingene og et sirkelskiveformet filterelement 1 skjæres i samvirke med matriseåpningene 4b ut av den foldede filterbane. En med et sugehode utstyrt utkaster 8 tar opp det utskårne filterelement 1. Selve filterelementet har en upåklagelig snittflate. After both sides of the filter web surface have been provided with circular rings 2, a rotating cup knife 7 is placed over the adhesive rings and a circular disc-shaped filter element 1 is cut in cooperation with the matrix openings 4b out of the folded filter web. A ejector 8 equipped with a suction head picks up the cut-out filter element 1. The filter element itself has an impeccable cut surface.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2807546A DE2807546C2 (en) | 1978-02-20 | 1978-02-20 | Circular disk-shaped filter element made of sheet-like filter material folded in parallel and a process for its production |
Publications (3)
Publication Number | Publication Date |
---|---|
NO790548L NO790548L (en) | 1979-08-21 |
NO148543B true NO148543B (en) | 1983-07-25 |
NO148543C NO148543C (en) | 1983-11-02 |
Family
ID=6032638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO790548A NO148543C (en) | 1978-02-20 | 1979-02-19 | CIRCUIT SHAPE FILTER ELEMENT AND PROCEDURE FOR PREPARING THIS |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2807546C2 (en) |
GB (1) | GB2018148B (en) |
IT (1) | IT1118380B (en) |
NO (1) | NO148543C (en) |
SE (1) | SE435236B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3007757A1 (en) * | 1980-02-29 | 1981-09-24 | Drägerwerk AG, 2400 Lübeck | METHOD FOR PRODUCING FILTER ELEMENTS FROM FILTER PAPER |
AU564569B2 (en) * | 1983-11-23 | 1987-08-13 | Donaldson Company Inc. | Filter with integral structural framework |
DE4218396B4 (en) * | 1992-06-04 | 2004-04-01 | Mann + Hummel Gmbh | Filter device, in particular for filtering the intake air of an internal combustion engine |
DE4328846C2 (en) * | 1993-08-27 | 1999-05-20 | Mann & Hummel Filter | Process for producing a filter insert and filter insert produced by this method |
DE4435532A1 (en) * | 1994-10-05 | 1996-04-11 | Mann & Hummel Filter | Process for the production of filters |
EP1136112A1 (en) * | 2000-03-23 | 2001-09-26 | 3M Innovative Properties Company | Method of making a generally cylindrical pleated filter element |
FR2810257B1 (en) * | 2000-06-20 | 2003-02-14 | Filtrauto | FLUID FILTER AND METHOD OF MANUFACTURING |
FR2815268B1 (en) * | 2000-10-16 | 2003-07-25 | Draeger Sicherheitstech Gmbh | PARALLEL PLEATED FILTER |
DE10130919A1 (en) | 2001-06-27 | 2003-01-16 | Mahle Filtersysteme Gmbh | Process for sealing the cutting edges of web-shaped filter material |
DE102012022769B4 (en) * | 2012-11-22 | 2017-08-31 | Sefar Ag | METHOD AND DEVICE FOR PRODUCING A CONTOURED PLISSED FILTER ELEMENT |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1275870B (en) * | 1967-01-04 | 1968-08-22 | Draegerwerk Ag | Process for the production of a particulate filter insert for breathing apparatus |
-
1978
- 1978-02-20 DE DE2807546A patent/DE2807546C2/en not_active Expired
-
1979
- 1979-02-19 NO NO790548A patent/NO148543C/en unknown
- 1979-02-19 SE SE7901457A patent/SE435236B/en not_active IP Right Cessation
- 1979-02-19 IT IT67358/79A patent/IT1118380B/en active
- 1979-02-20 GB GB7905978A patent/GB2018148B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT7967358A0 (en) | 1979-02-19 |
SE435236B (en) | 1984-09-17 |
NO148543C (en) | 1983-11-02 |
DE2807546B1 (en) | 1979-08-16 |
IT1118380B (en) | 1986-02-24 |
DE2807546C2 (en) | 1984-02-16 |
NO790548L (en) | 1979-08-21 |
GB2018148A (en) | 1979-10-17 |
SE7901457L (en) | 1979-08-21 |
GB2018148B (en) | 1982-05-19 |
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