FI79802C - FOERFARANDE OCH PRESSHUVUD FOER FRAMSTAELLNING AV EN ROERFORMAD EXTRUSIONSPRODUKT UR SMAELT PLASTMASSA. - Google Patents
FOERFARANDE OCH PRESSHUVUD FOER FRAMSTAELLNING AV EN ROERFORMAD EXTRUSIONSPRODUKT UR SMAELT PLASTMASSA. Download PDFInfo
- Publication number
- FI79802C FI79802C FI861457A FI861457A FI79802C FI 79802 C FI79802 C FI 79802C FI 861457 A FI861457 A FI 861457A FI 861457 A FI861457 A FI 861457A FI 79802 C FI79802 C FI 79802C
- Authority
- FI
- Finland
- Prior art keywords
- rotors
- rotor
- press head
- press
- vanes
- Prior art date
Links
- 239000004033 plastic Substances 0.000 claims description 21
- 229920003023 plastic Polymers 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000000654 additive Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
- B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
- B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
- B29C48/3363—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a layered die, e.g. stacked discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/007—Using fluid under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
7980279802
MENETELMÄ JA PURISTINPÄA PUTKIMAISEN EKSTRUUSIOTUOTTEEN VALMISTAMISEKSI SULASTA MUOVIMASSASTA - FÖRFARANDE OCH PRESS-HUVUD FÖR FRAMSTÄLLNING AV EN RÖRFORMAD EXTRUSIONSPRODUKT UR SMÄLT PLASTMASSAMETHOD AND PRESS HEAD FOR MANUFACTURING A TUBULAR EXTRUSION PRODUCT FROM MOLT PLASTIC PULP - FOR THE PREPARATION OF EXTRUSION PRODUCTS IN SMART PLASTICS
Keksintö koskee menetelmää ja laitetta putkimaisen ekstruu-siotuotteen valmistamiseksi puristinpäällä, jossa massavirta-usten sekoitus tapahtuu radiaaliturbiinin periaatteen mukaisesti järjestettyjen, staattoripinnassa sijaitsevien johto-siipien ja roottoripinnassa olevien juoksusiipien avulla.The invention relates to a method and an apparatus for producing a tubular extrusion product with a press head, in which the mixing of the mass flows takes place by means of guide vanes on the stator surface and running vanes on the rotor surface arranged according to the principle of a radial turbine.
Monikerroksisten ekstruusiotuotteiden kuten kaapeleiden, pullojen, putkien tai puhalluskalvojen valmistuksessa on välttämätöntä, että eri kerrokset ovat tasapaksuja ja että muoveihin syötetyt lisäaineet ovat tasaisesti jakautuneina tuotteessa. Muoveihin joko ekstruusiovaiheessa pumppaamalla tai granulaatin mukana syötetyt lisäaineet pyrkivät erottumaan paine-, nopeus- ja lämpötilagradienttien johdosta virta-uskanavien seinämille. Puristinpäissä, joissa eri osavirtauk-set yhdistyvät, syntyy virtausten yhtymäkohtiin saumoja tai raitoja. Nykyisessä ekstruusiotuotannossa lisäaineet pumpataan yleensä muovipuristimen loppupäässä oleviin sekoitusyk-siköihin, joista virtaukset johdetaan massanjakajiin. Esim. US-patentista 3,490,097 tunnetaan radiaalipuristin, jossa kiinteätä muovimateriaalia muokataan ja yhdistetään putkimaiseksi massavirtaukseksi yhden tai useamman roottorin sisäke-hän kohdalla. Tunnettujen radiaalipuristimien mm. paineiden tasaukseen liittyvistä ongelmista johtuen ei tavanomaisin sekoituselimin ja siivekkein varustettua käytännössä toimivaa radiaalipuristinta kuitenkaan toistaiseksi ole pystytty rakentamaan.In the manufacture of multilayer extrusion products such as cables, bottles, tubes or blown films, it is essential that the different layers are of uniform thickness and that the additives fed to the plastics are evenly distributed in the product. Additives fed to plastics either by pumping in the extrusion stage or with the granulate tend to separate due to pressure, velocity and temperature gradients on the walls of the flow channels. At the press ends, where the different partial flows are combined, seams or stripes are formed at the junctions of the flows. In current extrusion production, additives are generally pumped to mixing units at the downstream end of the plastic press, from which the streams are directed to pulp distributors. For example, U.S. Patent 3,490,097 discloses a radial press in which a solid plastic material is formed and combined into a tubular mass flow at the inside of one or more rotors. Known radial presses e.g. however, due to problems with pressure equalization, it has not yet been possible to build a practical radial press with conventional mixing members and vanes.
Keksinnön mukaiselle menetelmälle on tunnusomaista se, että sulasta muovimassasta tai sula/kaasuseoksesta muodostuvat massavirtaukset johdetaan yhteen tai useampaan puristinpään puristinyksikköjen, jotka muodostuvat kahdesta staattorile-vystä ja niiden välissä olevasta roottorista, vastakkaisten 2 79802 pintojen muodostamaan sekoitusvyöhykkeeseen ulkokehältä säteen suunnassa sisäänpäin vähintään kahdesta roottoriin nähden säteettäin symmetrisesti sijoitetusta kohdasta, joista vyöhykkeistä massavirtaukset johdetaan roottorien sisäkehältä edelleen sinänsä tunnetulla tavalla putkimaisena virtauksena suuttimelle.The method according to the invention is characterized in that the mass flows consisting of molten plastic mass or molten / gas mixture are directed to one or more press head units of the from a symmetrically arranged point, from which zones the mass flows are further directed from the inner circumference of the rotors in a manner known per se as a tubular flow to the nozzle.
Keksinnön mukainen radiaalipuristin syötetään siis valmiiksi sulatetulla muovimassalla, esim. tavallisesta ekstruuderista. Roottorit pyörivät joko massavirtausten pyörittäminä tai ulkoisen voiman avulla. Massavirtaukset sekoittuvat rootto-reiden ja levyjen välissä muodostaen suoraan putkimaisen virtauksen ilman osavirtausten yhdistämistä. Näin tuotteeseen ei synny minkäänlaisia saumoja tai raitoja. Tuotteesta tulee myös tasapaksu ja keskeinen.The radial press according to the invention is thus fed with a pre-melted plastic mass, e.g. from a conventional extruder. The rotors rotate either rotated by mass flows or by external force. The mass flows mix between the rotors and the plates, forming a direct tubular flow without combining the partial flows. This way, no seams or streaks appear on the product. The product also becomes evenly thick and central.
Keksinnön mukaiselle laitteelle, joka käsittää staattoreita, joiden pinnoissa on johtosiivet ja roottoreita, joiden pinnoissa on juoksusiivet radiaaliturbiinin periaatteen mukaisesti, on tunnusomaista se, että puristinpää muodostuu ainakin yhdestä puristinyksiköstä, johon kuuluu kaksi staattori-levyä ja yksi roottori, sekä vähintään kahdesta roottorin : ulkokehälle siihen nähden säteettäin symmetrisesti sijoite tusta kohdasta ulottuvat virtauskanavat sulasta muovimassasta tai sula/kaasuseoksesta muodostuvien massavirtauksien johtamiseksi levyjen ja roottoreiden välisille sekoitusvyöhykkeil-le, ja että eri sekoitusvyöhykkeet yhdistyvät roottorien sisäkehien kohdalla sinänsä tunnetulla tavalla putkimaiseksi suuttimeksi.The device according to the invention, comprising stators with guide vanes on the surfaces and rotors with running vanes on the surfaces according to the radial turbine principle, is characterized in that the press head consists of at least one press unit comprising two stator plates and one rotor and at least two flow channels extending from a radially symmetrically spaced position for conducting mass flows of molten plastic mass or molten / gas mixture to the mixing zones between the plates and the rotors, and that the different mixing zones are connected to the inner circumferences of the rotors in a manner known per se.
Keksinnön muille edullisille sovellutusmuodoille on tunnusomaista se, mitä jäljempänä olevissa patenttivaatimuksissa on : esitetty.Other preferred embodiments of the invention are characterized by what is set forth in the claims below.
3 798023 79802
Kuva 1 esittää keksinnön mukaisen puristinpään läpileikkausta 3-kerrossovellutuksena.Figure 1 shows a cross-section of a press head according to the invention as a 3-layer application.
Kuva 2 esittää kuvan 1 mukaista puristinpäätä sivulta katsottuna.Figure 2 shows a side view of the press head according to Figure 1.
Kuva 3 esittää puristinpäässä käytettävää roottoria.Figure 3 shows the rotor used in the press head.
Kuva 4 esittää kuvaan 2 nähden vaihtoehtoista syöttökanava-järjestelyä.Figure 4 shows an alternative feed channel arrangement compared to Figure 2.
Kuva 5 esittää keksinnön erään toisen sovellutusmuodon mukaista puristinpäätä sivulta katsottuna.Figure 5 shows a side view of a press head according to another embodiment of the invention.
Kuvassa 1 massavirtaukset syötetään levyjen la-ld välissä olevien kanavien 8 kautta roottoreiden 2a-2c ulkokehille. Syöttölaitteina voi toimia muovien sulatukseen ja paineen muodostukseen käytetyt muovipuristimet ja muiden massojen syöttö voidaan suorittaa esim. hammasrataspumpuilla. Massa-virtaukset siirtyvät kanavista 8 syöttörakoon 9 ja laakeroinnin 10 kautta roottoreiden ja levyjen välisiin tiloihin, jossa ne siirtyvät kohti roottoreiden keskusaukkoja samalla sekoittuen. Roottoreiden kummaltakin puolelta virtaavat massat yhdistyvät kaksikerroksisiksi putkimaisiksi virtauksiksi, jotka johdetaan edelleen suuttimille 3 esim. laitteella, joka käsittää esimerkinomaisesti neljä levyä la-ld ja : kolme roottoria 2a-2c. Tällaisella laitteella voidaan tuottaa jopa kuusikerroksista tuotetta, riippuen siitä mitä materiaaleja syöttökanaviin pumpataan. Kanava 5 on nesteiden tai kaasujen syöttökanava.In Fig. 1, the mass flows are fed through the channels 8 between the plates 1a-1d to the outer circumferences of the rotors 2a-2c. Plastic presses used for melting plastics and creating pressure can act as feeders, and the supply of other pulps can be carried out, for example, with gear pumps. The mass flows are transferred from the channels 8 to the feed gap 9 and through the bearing 10 to the spaces between the rotors and the plates, where they move towards the central openings of the rotors while mixing. The masses flowing from each side of the rotors are combined into two-layer tubular flows which are passed on to the nozzles 3, e.g. by a device comprising, by way of example, four plates 1a-1d and: three rotors 2a-2c. Such a device can produce up to six layers of product, depending on what materials are pumped into the feed channels. Duct 5 is a liquid or gas supply duct.
Kuvassa 2 on esitetty keksinnön mukainen puristinpää sivusta katsottuna, jossa on levyt 1, joissa on roottoripesien pinnoissa siipiä 6 (vastaavat radiaaliturbiinin johtosiipiä), sekä roottorit 2, joissa on vastakkaisessa kulmassa olevia siipiä 7 (vastaavat juoksusiipiä), muovien syöttökanavisto 4 sekä lisäaineen virtauskanava 5. Kuvassa esitetyt roottorit pyörivät vapaasti muovivirtauksen mukana muovin virtausno- 4 79302 peutta vastaavalla nopeudella. Levyissä 1 ja roottoreissa 2 olevat siivet 6,7 sekoittavat roottoreille syötetyt massavir-taukset erittäin tehokkaasti ja siivet samalla siirtävät massoja kohti roottoreiden keskusaukkoja.Figure 2 shows a side view of a press head according to the invention with plates 1 with vanes 6 (corresponding to radial turbine guide vanes) on the surfaces of rotor housings and rotors 2 with vanes 7 at opposite angles (corresponding to running vanes), a plastic supply duct 4 and an additive flow channel 5 The rotors shown in the figure rotate freely with the plastic flow at a speed corresponding to the speed of the plastic flow rate. The vanes 6,7 in the plates 1 and in the rotors 2 mix the mass flows fed to the rotors very efficiently and at the same time the vanes move the masses towards the central openings of the rotors.
Piirustuksissa ei ole esitetty sellaisia apulaitteita kuten lämmitys, kiinnitys ym. lisälaitteita, jotka eivät ole oleellisia keksinnön periaatteen kannalta.The drawings do not show such auxiliary devices as heating, fastening and other accessories which are not essential to the principle of the invention.
Kuva 3 esittää tarkemmin roottorin 2 rakenteen. Roottorin kehällä kulkeva ura 11 on kuulaura roottorin laakerointia varten.Figure 3 shows the structure of the rotor 2 in more detail. The groove 11 running on the circumference of the rotor is a ball groove for mounting the rotor.
Kuva 4 esittää vaihtoehtoista muovin syöttökanavajärjestelyä. Siinä syöttökanava 12 jakautuu kahteen haaraan, joka suoraan liittyy syöttörakoon 9 siten, että syöttöpaine jakautuu tasaisesti koko roottorin kehälle. Näin ollen massavirtaukset johdetaan roottorille periaatteessa äärettömän monesta pisteestä .Figure 4 shows an alternative plastic supply channel arrangement. In it, the feed channel 12 is divided into two branches directly connected to the feed gap 9 so that the feed pressure is evenly distributed over the entire circumference of the rotor. Thus, the mass flows are directed to the rotor in principle from an infinite number of points.
Kuva 5 esittää keksinnön sellaisen sovellutusmuodon mukaisen puristinpään, jossa roottoria pyöritetään akseleihin 13 kiinnitettyjen hammaspyörien 14 avulla. Tällöin tulee roottorin 2 ulkokehällä olla vastaavasti hammasrata kuvion 3 kuula-uran sijasta.Figure 5 shows a press head according to an embodiment of the invention, in which the rotor is rotated by means of gears 14 fixed to the shafts 13. In this case, the outer circumference of the rotor 2 must have a gear track instead of the ball groove of Fig. 3, respectively.
Tämä ratkaisu tulee kyseeseen, kun muovivirtaukset eivät jostain syystä anna roottorille riittävän suurta tai alhaista kierrosnopeutta halutun lopputuloksen aikaansaamiseksi. Syynä voi olla esim. halu muuttaa muovin muokkaus- ja sekoitusas-tetta tai lämpötilaa roottorin pyörimisnopeutta säätämällä.This solution comes into play when, for some reason, the plastic flows do not give the rotor a sufficiently high or low rotational speed to achieve the desired result. The reason may be, for example, the desire to change the degree of processing and mixing of the plastic or the temperature by adjusting the rotational speed of the rotor.
Keksinnön mukaisella menetelmällä on erittäin laajat sovellutusmahdollisuudet muoviteollisuudessa ja muussa ekstruusio-tuotannossa hyvinkin erilaisten nestemäisten, sulien, tahna-’ maisten, kaasumaisten jne. materiaalien sekoittamiseksi keskenään muodostamaan pyörähdyssymmetrisiä kerrosrakenteita, joissa kerrosten lukumäärä voi vaihdella.The method according to the invention has a very wide range of applications in the plastics industry and other extrusion production for mixing very different liquid, molten, pasty, gaseous, etc. materials together to form rotationally symmetrical layer structures in which the number of layers can vary.
5 798025 79802
On huomattu, että on myös mahdollista syöttää kaikkiin syöt-tökanaviin samaa materiaalia. Tällöin voidaan halutuille roottoreille tai vain toiselle puolelle roottoria syöttää tarpeelliset lisäaineet, jolloin saadaan tuotettua erilaisia kerrosrakenteita. Levyjen 1 roottoreiden 2 lukumäärää voidaan edelleen lisätä edullisesti, koska tämä ei lisää laitteen painekestoisuusvaatimuksia ja koska kaikkia roottoreita voidaan pyörittää samojen käyttöakseleiden välityksellä.It has been found that it is also possible to feed the same material to all feed channels. In this case, the necessary additives can be fed to the desired rotors or only to one side of the rotor, whereby various layer structures can be produced. The number of rotors 2 of the plates 1 can be further advantageously increased, since this does not increase the pressure resistance requirements of the device and because all the rotors can be rotated via the same drive shafts.
Lisäaineiden syöttöön käytetyt hammaspyöräpumput voidaan integroida myös levyjen 1 väliin, samoin muovien syöttöön käytetyt ruuviekstruusiolaitteet, jotka voivat olla erittäin pienikokoisia ja suurilla kierrosnopeuksilla toimivia, koska lopullinen massan plastisuus aikaansaadaan roottoreiden 2 avulla ja myös syöttökanavat voidaan käyttää hyödyksi massa-virtausten lämpötilan nostamiseksi halutulle tasolle. Roottoreiden pyörimisnopeutta säätämällä voidaan säätää lopullinen massan lämpötila kitkalämmön avulla. Näin järjestelmän termiset aikavakiot saadaan erittäin lyhyiksi ja massa myös termisesti tasalaatuiseksi.The gear pumps used to feed the additives can also be integrated between the plates 1, as can the screw extrusion devices used to feed the plastics, which can be very small and high speed because the final plasticity of the pulp is provided by the rotors 2 and the feed channels can be used to raise mass flow temperatures. By adjusting the rotation speed of the rotors, the final pulp temperature can be adjusted by means of frictional heat. This makes the thermal time constants of the system very short and the mass also thermally uniform.
Claims (7)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI861457A FI79802C (en) | 1986-04-04 | 1986-04-04 | FOERFARANDE OCH PRESSHUVUD FOER FRAMSTAELLNING AV EN ROERFORMAD EXTRUSIONSPRODUKT UR SMAELT PLASTMASSA. |
ES8700969A ES2004134A6 (en) | 1986-04-04 | 1987-04-03 | Method and extruder head for manufacturing extrusion products from melted plastic. |
PCT/FI1987/000047 WO1987005856A1 (en) | 1986-04-04 | 1987-04-03 | Method and extruder head for manufacturing extrusion products from melted plastic |
JP62502226A JPH01501925A (en) | 1986-04-04 | 1987-04-03 | Method and extrusion head for producing extruded products from molten plastic |
KR1019870701142A KR880701172A (en) | 1986-04-04 | 1987-04-03 | Method for manufacturing extrudates of plastic molten material and apparatus |
EP87902520A EP0310602A1 (en) | 1986-04-04 | 1987-04-03 | Method and extruder head for manufacturing extrusion products from melted plastic |
CN198787102620A CN87102620A (en) | 1986-04-04 | 1987-04-04 | The manufacture method of extrusion products from melted plastic and extruder head |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI861457 | 1986-04-04 | ||
FI861457A FI79802C (en) | 1986-04-04 | 1986-04-04 | FOERFARANDE OCH PRESSHUVUD FOER FRAMSTAELLNING AV EN ROERFORMAD EXTRUSIONSPRODUKT UR SMAELT PLASTMASSA. |
Publications (4)
Publication Number | Publication Date |
---|---|
FI861457A0 FI861457A0 (en) | 1986-04-04 |
FI861457A FI861457A (en) | 1987-10-05 |
FI79802B FI79802B (en) | 1989-11-30 |
FI79802C true FI79802C (en) | 1990-03-12 |
Family
ID=8522415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI861457A FI79802C (en) | 1986-04-04 | 1986-04-04 | FOERFARANDE OCH PRESSHUVUD FOER FRAMSTAELLNING AV EN ROERFORMAD EXTRUSIONSPRODUKT UR SMAELT PLASTMASSA. |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0310602A1 (en) |
JP (1) | JPH01501925A (en) |
KR (1) | KR880701172A (en) |
CN (1) | CN87102620A (en) |
ES (1) | ES2004134A6 (en) |
FI (1) | FI79802C (en) |
WO (1) | WO1987005856A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3315271B2 (en) * | 1994-09-21 | 2002-08-19 | 呉羽化学工業株式会社 | Laminated resin molding |
ATE210545T1 (en) | 1995-06-26 | 2001-12-15 | Nextrom Holding Sa | EXTRUSION APPARATUS AND METHOD FOR ORIENTING PLASTIC MATERIAL BY USING AN EXTRUSION APPARATUS |
US9670809B2 (en) | 2011-11-29 | 2017-06-06 | Corning Incorporated | Apparatus and method for skinning articles |
US9132578B2 (en) * | 2011-11-29 | 2015-09-15 | Corning Incorporated | Apparatus and method for skinning articles |
US9239296B2 (en) | 2014-03-18 | 2016-01-19 | Corning Incorporated | Skinning of ceramic honeycomb bodies |
US10611051B2 (en) | 2013-10-15 | 2020-04-07 | Corning Incorporated | Systems and methods for skinning articles |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3490097A (en) * | 1968-02-16 | 1970-01-20 | Dow Chemical Co | Flighted extruder |
YU32117B (en) * | 1968-09-02 | 1974-04-30 | Sidel Sa | Presa za istiskivanje sa obrtnom plocom |
FR1596699A (en) * | 1968-11-28 | 1970-06-22 | ||
DE2026385A1 (en) * | 1970-05-29 | 1971-12-09 | Anger Kunststoff | Disk extruder |
-
1986
- 1986-04-04 FI FI861457A patent/FI79802C/en not_active IP Right Cessation
-
1987
- 1987-04-03 KR KR1019870701142A patent/KR880701172A/en not_active Application Discontinuation
- 1987-04-03 ES ES8700969A patent/ES2004134A6/en not_active Expired
- 1987-04-03 WO PCT/FI1987/000047 patent/WO1987005856A1/en not_active Application Discontinuation
- 1987-04-03 EP EP87902520A patent/EP0310602A1/en not_active Withdrawn
- 1987-04-03 JP JP62502226A patent/JPH01501925A/en active Pending
- 1987-04-04 CN CN198787102620A patent/CN87102620A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH01501925A (en) | 1989-07-06 |
FI79802B (en) | 1989-11-30 |
FI861457A (en) | 1987-10-05 |
FI861457A0 (en) | 1986-04-04 |
KR880701172A (en) | 1988-07-26 |
CN87102620A (en) | 1987-10-14 |
WO1987005856A1 (en) | 1987-10-08 |
ES2004134A6 (en) | 1988-12-01 |
EP0310602A1 (en) | 1989-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: KIRJAVAINEN, KARI JOHANNES |